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Software

07-18

2020

Component-Based Development

Research on Software Development Method Based on ComponentThe rapid development of computer hardware technology has led to the rapid assembly of various hardware, which can quickly assemble a computer conveniently and cost-effectively. But most software assembly generally wastes a lot of unnecessary time, or the cost exceeds the budget. In recent years, the technology of software development has become increasingly mature. Component-Based Development (CBD) was developed from the first and second-generation servers, which has significantly alleviated the passive situation in the software development process, allowing developers to manually assemble components and install them into applications. Bring new vitality to the software assembly industry. There is an essential difference between CBD and object-oriented. As a new method of distributed computing, CBD can improve the reusability of software and get rid of the small workshop production mode of software. CBD is necessary in the software development process. Links and inevitable consequences.1. Related concepts based on component developmentA physical package composed of some object classes is called a component. A component has independent transferability and is a single source of software that can be replaced in software development. It encapsulates design decisions and combines with other components. Groups have specific functions and can cross process boundaries to realize network, language, application and development. 2.2 CBDCBD is a technology that utilizes reusable software components to build applications. The three parts that make up a component are the description of the component, the implementation design of how the component works, and the transfer method developed on the specified platform. The basic activities of CBD include collecting components, improving the quality of assembly and adapting components to each other, and finally assembling components and updating components. The basic elements of a CBD tool are a component repository, a component modeling tool, a component search tool, and an operational system. The characteristics of CBD Compared with structured software development techniques, the characteristics of CBD are significant:First of all, CBD has a high degree of interoperability and can realize real software reuse. Components are some common or specific modules that can interoperate and be utilized, and developers can use them to form suitable systems without headaches. Second, the interface of CBD is reliable. A component's interface is immutable and cannot be modified once published. This also shows that once the user of the component obtains a certain service from a certain interface, he can always obtain the service from this interface. After encapsulation of general components, reasonable and consistent services can only be provided through defined interfaces. This stability of interface definition enables client application developers to develop robust applications. At the same time, CBD also has expandable services and strong infrastructure.2. The main research focus of CBDAt present, the research focus on CBD is mainly divided into three directions, component software, the process of building software, knowledge-based methods and software construction based on architecture.2.1 Component softwareComponent software referred to here refers to a series of activities that realize the interconnection and application of components through object and document models. For example, Microsoft's COM and OMG belong to a kind of object model, and they describe how to communicate between objects regardless of the language, address space, computer type and operating system boundary. Document models such as OLE2 can provide users with different data types and unified management of these data applications. This technology produces a new visual programming tool, which changes the programmer's method and process of information expression, making it easier for users to understand and accept.2.2 Specification and Knowledge-Based Approaches for Component SoftwareSolving the problem of component standardization is the normative task of component software. At present, it seems that distributed object standards are distributed in various forms, and the components themselves do not have a unified and clear definition, which increases the difficulty of assembling heterogeneous standard components. Knowledge-based method research is mainly carried out in academia. In order to realize the automation of software system process on the basis of domain knowledge, the assembly process between groups is described through a standardized method.2.3 Architecture-based software constructionThis direction is to provide system developers with architectures and reference architectures for domain-specific applications. Component-based applications are not only a simple patchwork of some common parts, but also built for some specific fields, so a system is needed to assemble components together to achieve interoperability between components, thereby improving work efficiency. Therefore, the research on the architecture of different fields becomes very important, which has a direct and critical impact on the treatment of components and the degree of reuse of components. The reference architecture describes the relationship between components and specific domains, and the architecture provides an organized environment for operating objects. This enables design and consistency when building a series of components. In the process of component software, developers do not need to clarify and understand the internal working and operating principles of the software, but only need to pay attention to the external use. This is a kind of black box software reuse. Architecture achieves software reuse through inheritance, which is a white-box software reuse, and there is an essential difference between the two. Experts who study architecture suggest to gradually transition from white box to black box, and now the use of architecture is very common.epilogueIn the initial stage of CBD, it is necessary to write basic program components, which cost workers a lot of time, money and energy. Therefore, the reuse rate of components is gradually increased in the later stage. The advantage is that it reduces production and development costs and reduces labor force. The work efficiency is improved, and at the same time, when modifying the system, only some related components need to be modified without affecting the use of other parts. Simultaneous components can realize the dream of parallel development. After users gradually deepen their understanding of distributed computing, they begin to realize that the system is a loosely combined service somewhere in a space, and they do not need to know where the information exists when obtaining services. At the same time, when the host-based system performs calculations such as servers, an application program is no longer monolithic, but separate and mutual. With the gradual maturity and development of software development technology, more attention has been paid to CBD technology. As a developer like Ah Jian, it is indispensable to master and pay attention to CBD. For the problems encountered in software development, including software quality, development The speed of software and the cost of development can be found through CBD technology. Although the road to CBD is bumpy, it is undeniable that CBD technology has become an inevitable trend of mutual understanding and development, and has a good development prospect. .The above is the component-based software development method introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have software and hardware function development needs for smart electronic products, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad: Songhan, Yingguang, Jieli, Ankai, Quanzhi, realtek, with MCU, voice IC, Bluetooth IC and module, wifi module. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth wifi development, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS earphones, the development of Bluetooth earphone speakers, the development of children's toys, and the research and development of electronic education products.
07-17

2020

Python software and hardware collaboration

Many modern system designs are completed by high-level languages such as C/C++ and Python, and these systems are becoming more and more complex, and the calculation volume of the algorithms involved is also increasing. Many algorithms need to be implemented by hardware to meet the real-time requirements of the algorithm. sexual demands. FPGA is a programmable logic device, which is easy to modify, debug, and can complete a large number of operations in parallel, thereby improving the real-time performance of the algorithm, and with the continuous improvement of hardware manufacturing level, FPGA resources are getting larger and larger. , the working frequency is getting higher and higher, making the algorithms that can be completed on it more and more complex. However, the traditional method of separate design of software and hardware, because software and hardware designers use different design languages, has problems such as difficulty in communication between software and hardware designers, resulting in long design cycles. This design method can no longer meet the rapidly growing market requirements. How to quickly convert the algorithms in these system designs into corresponding hardware for realization requires a new software-hardware co-design method. Currently based on C/C++ software and hardware co-design, there is a SystemC standardization organization that has been working on this work, which can convert C/C++ algorithms into corresponding hardware. Python is an easy-to-learn and powerful programming language. Many algorithms are implemented by Python, and many of these algorithms are free and open source. Similar to C/C++, it is necessary to complete the software-hardware co-design based on Python.1. Development of software and hardware collaborative design based on PythonDue to Python's powerful software and hardware description capabilities, many researchers have done a lot of research on Python's software and hardware co-design in recent years, one of which is called MyHDL Python extension package for software and hardware co-design, using MyHDL to complete a Interface design example. Each of these development tools has its own characteristics, but they have one thing in common, which is the use of Python for software and hardware co-design. The following takes MyHDL as an example to introduce the software-hardware co-design based on Python.2. Introduction to Python-based MyHDL packageMyHDL adopts the form of Python extension package so that it can support hardware design and simulation, and can automatically convert the software algorithm to the corresponding hardware description using Verilog or VHDL after the simulation results meet the requirements. Since the MyHDL package is a hardware extension based on Python, the following is mainly Briefly introduce some main features of MyH⁃DL hardware.1. Data type: The int type of standard Python already has many features required for hardware design, but because of many bit operations and processing in hardware design, MyHDL designed the intbv class to provide index and slice operations to support bit operations and processing .2. Modules, ports and signals: MyHDL uses functions to model hardware modules. My⁃HDL also has signal objects, which are similar to signals in VHDL language. Signals are used as parameters of functions to define the ports of modules.3. Generator: The generator is a key concept of MyHDL, which is used to establish a concurrency model, corresponding to the always block of Verilog or the process of VHDL.4. Automatic conversion: Under certain restrictions, MyHDL uses the toVerilog() or toVHDL() function to automatically convert the MyHDL design into the corresponding Veril⁃og or VHDL code. If it meets the requirements of MyHDL's synthesizable subset, MyHDL can be used Complete the hardware-synthesizable code and implement it on FPGA.5. Simulation: MyHDL supports simulation through the Cosimulation object. For automatically converted Verilog code or VHDL code, MyHDL can also be used as a hardware verification language to perform co-simulation and verification on the converted Verilog or VHDL.3. Advantages of hardware design using MyHDLVerilog and VHDL are the current mainstream hardware design languages, but using Python-based MyHDL for hardware design also has many advantages, making it another good choice for designers, especially beginners in hardware design.1. Low cost of using MyHDL: MyHDL is free and open source. You can also use a large number of free tools such as ICArus, IVERILOG simulation tools, and GTKWAVE to view simulation waveforms in the tool chain designed using MyHDL, thereby reducing design costs.2. Use advanced software development technology in hardware design: Since Python itself is a software development language, advanced methods of modern software development such as rapid application development and test-driven development are all reflected in Python. Design and software development have a certain similarity, and MyHDL can use the latest software development technology.3. Software and hardware design can use the same development environment: Python is an ideal language for algorithm implementation. Many algorithms are implemented by Python. Usually, the software and hardware implementation of the algorithm is implemented by different engineers. Software engineers use Python, and hardware engineers use Python. General-purpose hardware description languages, such as Verilog or VHDL, have a gap between hardware engineers and software engineers. With MyHDL, algorithm design, simulation and verification can be realized in the same Python environment.4. Other advantages: For designers who do not have certain experience in hardware design, usually using Verilog design will confuse blocking and non-blocking assignments, do not know the symbolic operation of Verilog, use VHDL to design and do not understand the signal concept of VHDL, they will feel that VHDL Type and bit width conversion is cumbersome, but if the Python-based MyHDL package is used as the design language, these will not be a problem.4. Software and hardware design process based on PythonIn modern system design, software engineers use high-level languages such as Python, while hardware system design mostly uses Verilog and VHDL hardware description languages. On how to map the software described by Python to corresponding hardware, the communication between software and hardware developers exists. There is a natural gap, and using Python for hardware-software co-design can solve this problem. The process of software-hardware co-design based on Python is shown in Figure 1.Firstly, Python is used for system design, and then software and hardware are divided according to system performance requirements. The part with relatively high system performance requirements is implemented by hardware in the form of Python's MyHDL extension package, and Python is used to write a hardware test platform. If the test simulation does not meet the system design requirements, software and hardware can be re-divided. If the test simulation result is incorrect, it can be re-modified. After the simulation is passed, the MyHDL extension package can be used to automatically convert Python to Verilog code. At this time, the Python test platform can be mixed with the converted Verilog code without modification. If the simulation is passed, the hardware can be synthesized, downloaded, and tested. phase, which is the same as the traditional hardware design process.epilogueFrom the above analysis, it can be seen that MyHDL based on Python is not only a software-hardware co-design method, but also an extension package of Python, so that the entire development process uses only one Python language, and it is very convenient to quickly convert a software algorithm Its corresponding hardware realizes, thus completes a software and hardware system design. Due to the limitations of Python's current synthesizable subset and its own development stage, the software and hardware design based on Python is mainly used for system modeling, and there are not many applications for chip design. Some researchers Comparing the implementation of MyHDL and traditional hardware design languages, the advantages for small-scale applications are not obvious. However, as the algorithms of modern systems become more and more complex, and the scale of the system continues to increase, the advantages of using Python for software and hardware collaborative design compared to traditional software and hardware design methods will be reflected. System design, simulation, verification The speed will be greatly improved, and products using Python for system design can enter the market faster. With the development of Python-based system design methods and tools, the software-hardware co-design method based on Python will have broad application prospects.
07-16

2020

APP User Experience Design

With the continuous growth and popularization of the Internet field, information technology products have been recognized by people and are constantly promoting social development. Mobile APP is an emerging product of the era, and APP belongs to a "self-service" space. Users can use their own preferences and understanding to obtain and choose the products and content you need. An officially launched APP product program, if there is no beautiful UI design, and it does not consider the user experience to develop convenient operation functions, the birth of this product will also lose the meaning of mobile products, and it will eventually be in the link of user selection This reflects the necessity and importance of user experience design in the establishment of APP. Therefore, during the development process of software design, the needs of users should be taken as an important development basis, and the first development goal from the perspective of users can be to satisfy users' needs in order to retain users. The emphasis on user experience is not only conducive to the maintenance and quality development of software design and development, but also allows programmers to have a clearer design idea for software development, thereby ensuring that software design and development have a good development prospect.1. The user experience stage in software design and developmentThe rapid development of the Internet has directly affected various marketing changes in the market, and operators of mobile products have begun to pay attention to the importance of user experience. American cognitive psychologist Donald Norman believes that user experience (User-Experience) is a purely subjective psychological feeling established in the process of using a product (service) by the user in the user experience problem of human-computer interaction. In the software development process, user experience refers to the user experience process when using the product, including the real feedback of the user's satisfaction data from the aspects of APP beauty, entertainment, convenience, reliability, risk, and function realization.Due to the cyclical nature of product design and development, different stages will have an impact on user experience. Therefore, users have different experiences in the software design and development preparation period, interaction period, and feedback period. According to the development trend and a large amount of data survey, the user experience shows a gradual upward trend in the preparation period and the early stage of the interaction stage, while in the later stage of the interaction stage and the feedback stage, the user experience first declines.2. The five cores of APP user experienceUser experience design is a part of Internet product design, and it is a very critical part. The entire design process of user experience is to make users feel dependent and emotional in the experience of product launch, and to like this product. However, the current Internet-related companies often only focus on performance and cool effects, and the product design is too rough, ignoring the important part of Internet product design-user experience design. The APP user experience directly affects the later launch and future development of the product. The following analyzes the main part of the APP user experience from the five core aspects of strategy, scope, structure, framework, and performance.(1) Presentation layer. The presentation layer is the visual performance judgment when the user directly sees the product page, whether the matching of naming, graphics and text is reasonable, and whether it has visual impact and appeal. For mobile product design, each page of the APP is basically composed of pictures and texts. Some pictures and texts can be clicked to jump and have the function of interactive links. Some pictures and texts are not clickable, but are only used for marketing display or to increase the beauty of the page . The arrangement and layout of each information element in the APP is to better the visual aesthetics and fluency of the product, and at the same time to meet the functional requirements of the product, so each design will have an important impact on the product experience.(2) Frame layer. The framework layer of mobile products is essentially to guide the UI design of APP, that is, interface design, navigation design and information module design, including various buttons, controls, photos, text areas, etc. The framework layer is used to optimize the design layout. The optimal layout and design of the product functions in the best way that is easy for users to understand, in order to achieve the maximum effect and efficiency of each element. This is the problem that the framework layer needs to solve and think about.(3) Structural layer. Compared with the frame layer, the structure layer is only the expression of the structure, and the structure layer transforms the abstract design concept of the frame into the specific process of the user-perceivable information layer. For example, the framework layer determines the position of each function in the navigation design, and the structure layer is to design the jump effect of how users can reach this function. The frame layer determines the arrangement of various functions of the navigation bar, allowing users to browse each module of the page. It is the interactive design of APP products and the construction of information architecture, which directly affects the experience process of end users.(4) Range layer. The structure layer determines the most suitable way to build APP's various features and functional pages, and the functions and performance of these pages constitute the scope layer of the product. For example, what functions are needed for a certain page of the product, and how to meet the various needs and expectations of users, this is a problem to be solved by the scope layer.(5) Strategic layer. The strategic layer refers to product goals and user needs. At the beginning of the design of each product, there must first be a clear goal strategy, that is, what specific functions do you want to develop a product, only when the goal is clear, the subsequent design and development will gradually develop around this goal and needs.3. Determine the direction of user experience optimizationExcellent experience design can always win unanimous praise and favor from users, and the self-value of the product will also be brought into play and improved. I researched the early APP design at home and abroad, mainly reflected in the imperfect product functions, lack of attention to user needs, confusion in the product interaction layer, and overly cumbersome interface design. use. Therefore, in the first phase of the development of each APP product, it should focus on users, and focus on research and optimization from the perspective of user needs and experience.(1) Find out the APP strategic goals and humanized needs. As a user, the fundamental purpose of choosing a product is to use this product to solve some of your own problems, or to get something you want through the product. The ultimate goal of software is to solve users' problems, which is also the main core issue of the strategic layer of mobile development. Based on the above description and analysis of the five core parts of product experience design, it can be concluded that in the early stage of developing mobile products, it is necessary to determine the goals of the product and the users of the product. Once the user group is located, it is necessary to conduct data research and demand analysis on the group to understand the user's functional requirements and expectations for the product, form strategic goals and humanized demand documents, and provide users with the best service.(2) Establish target interaction design and focus on product operation efficiency. Establishing interaction design is a crucial step for successfully developing a mobile product. Interaction design with clear product goals can help and guide users to achieve their goals and wishes more conveniently and improve product efficiency. Excellent interaction design is firstly reflected in the concise and clear interface. Jumps and unnecessary redundant behaviors should be reduced as much as possible to make the user's operation steps simple and clear; secondly, pay attention to the structural design specifications of the interface to ensure the consistency of product design. Every page and function in balance and harmony. The length of a software life cycle has a lot to do with the applicability and operating efficiency of the product. If the interaction design of the product meets the standard, but the function of the product cannot meet the demand, it will also reduce the user's good experience. Therefore, in the process of target design, we must pay attention to the optimization of algorithms and codes, ensure the interactive design and improve the operating efficiency of the software itself, so that users can complete the expected requirements in the shortest time, and make temporary users become long-term users of the product.(3) Service-oriented planning function, focusing on interface design and structural framework. In the planning process of product functions, designers should not only focus on the improvement of product functions and excessively add unnecessary functional modules, which will lead to an instant decline in user satisfaction with the product experience. Therefore, while collecting user needs to meet user expectations, focus on planning the core functions of the APP. After researching and analyzing the existing successful similar APP functions and artistic designs, absorbing the advantages of its interface design and summarizing the lack of functions, the This is corrected and perfected, and the structural framework is extracted to form a complete user-service-oriented visual design diagram.SummarizeWith the development and precipitation of the world's Internet economy, people's demand for mobile products and selection requirements will only increase, and the difference in product experience determines the user's choice. For a successful mobile product, from the initial functional requirements to psychological expectations, the user experience module has become a new standard for measuring the value of mobile APPs. Only when the initial stage of software development is service-oriented and focuses on the five core aspects of user experience design , in order to ensure that the market share of mobile products remains invincible.The above is the user experience design optimization strategy for mobile programming APP development introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. If you have software and hardware function development needs for smart electronic products, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad, including MCU, voice IC, Bluetooth IC and modules, wifi modules. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth wifi development, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS solutions, the development of Bluetooth audio, the development of children's toys, and the development of electronic education products.
07-15

2020

Software Requirements Analysis Method

1. Overview of Software Development Project Requirements AnalysisRequirements analysis is an important stage in the software development process, especially in the development process of large-scale software projects (such as ERP systems). The main task of requirements analysis is to present the process of solving the user's "problem" in the form of a document. In layman's terms, it is an in-depth analysis of the "system" required by the user in terms of functionality, purpose, applicability, and reliability. . Generally, software project development requirements analysis includes four aspects: identification, analysis and summary of problems, generation of various requirements description documents and review of documents. It can be seen that the requirements analysis stage is not the realization stage of the user's software system, but the description of the system required by the user at the logical level. Therefore, it can be seen that the requirements analysis stage not only requires the participation of developers, but also requires the participation of users.As the complexity and functionality of software development increase, requirements analysis, as an essential link in the definition phase of the software life cycle, plays a pivotal role and is the basis for subsequent project coding, testing, and maintenance phases, which is hard to imagine. , the user system that lacks the necessary requirement analysis can meet the needs of users very appropriately. In addition, in the development process of large and medium-sized software projects, once user needs change, it often results in huge code changes, system integration, and interface design work, which requires unpredictable manpower and financial resources. What needs to be mentioned is that requirement analysis is also an important part of software engineering research. In short, the requirements analysis in the software project development and design stage plays an important role in ensuring the continuity of follow-up work, in-depth understanding of the system, and later maintenance.2. Research on software development project requirements analysis2.1 Insufficient user participationThe requirements analysis stage is the process of in-depth division and analysis of user system function definition, performance description, and system reliability. Without user participation or insufficient user participation, it is not conducive to the smooth development and implementation of demand analysis work. Developers are often relatively proficient in the development process of the system and the use of development tools, but do not know much about the functions required by specific users: and the description of system functions by users usually has certain limitations, and even users They also don't understand their real needs. Therefore, if software requirements analysis lacks user participation, a consensus between users and developers cannot be reached, and it is easy for developers to have one-sided understanding of the system and incomplete functional analysis, which may even lead to rework in subsequent development and testing stages. Cause serious waste of human and financial resources.2.2 Uncertainty of user needsDue to the user's unfamiliarity with the development work and the user's uncertainty about the required functions (mainly referring to changes in requirements and increases in requirements), it is easy to lead to a sharp increase in software projects, the controllability of project scale, project complexity, and project complexity. Risks will become uncertain as demand changes. In addition, the uncertainty of user needs may lead to changes in the structure of the project code, which makes the principle of "high cohesion and low coupling" in the code specification easy to be broken, and the overall structure of the code is broken, which also brings difficulties to the maintenance of the code. Some difficulties; of course, the stability and robustness of the system are often affected. In short, the uncertainty of user needs is also an important aspect of the problems faced in the requirements analysis stage.2.3 Insufficient depth and comprehensiveness of demand analysisIn addition to the deficiencies of the above content, the lack of in-depth and comprehensive requirements analysis is also one of the problems that are prone to occur at this stage. The lack of depth of analysis will lead to problems in the division of subsystem modules at the system boundary, function definition, and subsystem interface; insufficient comprehensive analysis of requirements may cause the functional integrity of users to be affected, and some user needs to be ignored. Patch-like codes appear in the later coding, and the structure of the system will be damaged. In severe cases, it may lead to a crisis in the project development cycle and project funds, or even a catastrophic impact on software development. It can be seen that when software requirements analysis is carried out, not only the cooperation of all parties is required, but also a complete and consistent understanding of the user system is required.3. Discussion on solutions to software development project requirements analysis problems3.1 Improve user participation and strengthen cooperation between users and developersTo solve the problem of software development project requirements analysis, first of all, we should strengthen the cooperation between users and developers to ensure the smooth communication of personnel from all parties. This is mainly based on the purpose of requirements analysis. Users more or less have their own opinions on functional requirements, while developers and designers have skilled development techniques, but relatively insufficient understanding of users' specific functions and other technical requirements. Therefore, through strengthening communication with each other, It can quickly form an in-depth understanding of the user system, and while communicating with each other, it is easy to achieve a comprehensive understanding of the system functions. It can be seen that improving user participation in the demand analysis stage is a necessary means to conclude related issues.3.2 Do a good job in tracking the status of various requirements of the systemSoftware system requirements analysis includes the definition of operating environment, system stability guarantee, system functional requirements, system reliability and many other aspects. Especially in the definition of system functionality, it is not only necessary to strengthen the system definition at a higher logical level, but also to strengthen the data flow, data structure definition, sub-module definition, sub-module function division and accurate analysis and definition of each interface function. It can be seen that the requirements analysis involves a lot of content. While ensuring the effectiveness of the requirements analysis, the tracking of the status of each part of the requirements analysis module should be improved to ensure the accuracy of the content requirements analysis of each module, and finally form the accuracy guarantee of the overall requirements.3.3 Improve the integrity and consistency of requirements analysisIn addition to strengthening personnel cooperation and tracking of various requirements, requirements analysis should also improve the integrity and consistency of requirements analysis. Ensure the consistency of software system logic definition and data flow, the consistency of the realization of the overall function and the function of each module, and improve the consistency of software functionality and stability, etc. Of course, in addition to the guarantee of consistency, the completeness and depth of system analysis should be further strengthened to ensure that the functional requirements and performance requirements of users can be better realized and satisfied, and avoid rewriting or reworking of later codes Appear. It can be seen that improving the integrity and consistency of software system requirements analysis is also an important aspect to solve its problems.3.4 Make good use of various development tools for requirement analysisMany aspects of requirements analysis need to form various documents for use in document review, and of course they are also the basic reference for system implementation. Therefore, make good use of various development tools for requirements analysis, such as various definition tools for data structure definition; data flow Diagram drawing tools; functional module design diagrams and other requirements analysis symbols are of great help to requirements analysis. Making good use of these symbolic tools, on the one hand, helps users understand the accuracy of system definitions and avoids "communication" problems caused by technology; Direct translation into a specific programming language. In short, making good use of demand analysis and development tools is also an effective means to solve the problem of demand analysis.The above are the software development project requirements analysis problems and solutions introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have software and hardware function development needs for smart electronic products, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad: Songhan, Yingguang, Jieli, Ankai, Quanzhi, realtek, with MCU, voice IC, Bluetooth IC and module, wifi module. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth wifi development, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS earphones, the development of Bluetooth earphone speakers, the development of children's toys, and the research and development of electronic education products.
07-14

2020

Research on the principle of WeChat official account

1. Introduction to WeChat Official AccountWeChat software is developed by Shenzhen Tencent Network Enterprise. It is a communication program that can use Internet communication technology for instant communication. Registered customers can use mobile phones and tablet computers to conveniently send audio, video, documents, graphics and other information to relatives and friends who want to contact. WeChat social software also has a series of services such as an interactive communication platform, friend dynamics, and news promotion. WeChat customers can also use methods such as searching for nearby WeChat users, binding contacts in the address book, finding WeChat users within a certain range, and scanning special codes. Increase the number of netizens or subscribe to interested public accounts, and WeChat social software can also push the interesting news and video information you see to your relatives and friends, or send these content to your own dynamics, so that all friends can You can see it when you browse your friend's news. As of today, more than 800 million users have registered to use WeChat social software in my country. Using the official account function of WeChat social software, companies and enterprises can establish WeChat social software subscription accounts related to their own company or enterprise content, and promote the company's project to establish a good social image.WeChat social software also has a series of services such as an interactive communication platform, friend dynamics, and news promotion. WeChat customers can also use methods such as searching for nearby WeChat users, binding contacts in the address book, finding WeChat users within a certain range, and scanning special codes. Increase the number of netizens or subscribe to interested public accounts, and WeChat social software can also push the interesting news and video information you see to your relatives and friends, or send these content to your own dynamics, so that all friends can You can see it when you browse your friend's news.The WeChat social software account is the user account created by the software operator or the company official on the WeChat social software subscription account management platform. This account is bound to Tencent QQ chat software. Using the public subscription account, the company and the enterprise will Able to use text, images, messages, video and other information in the WeChat social circle to communicate with potential users in a certain circle to a greater extent, resulting in a more fashionable and popular online store and offline entity Store interconnected sales model. Use a smart phone or tablet computer to download WeChat social software in the app store and install and run it. Find the official account query option in the friends list, and you can view the related list of official accounts subscribed by your account, and you can also add and delete this list, etc. manage.1. Introduction to WeChat Subscription AccountIt brings news and private users an unprecedented way to deliver messages, and builds a more convenient communication and interaction bridge between readers and the official account platform, which facilitates the author's supervision of his own works. Officially confirmed public account, the information is displayed in the classification column of the public account, and the same message can be sent to everyone, and the top is once a day, the most basic chat information viewing and chat information sending port, chat window layout and List of other functions.2. WeChat public platform communication mechanismThe information port of the WeChat social platform brings an unprecedented information management mode to related users and consumers, so it has a certain ability to communicate with customers in terms of information. For WeChat public accounts that can successfully connect to the information port, if the customer uploads the information to the public account, the service provider of the WeChat social software management platform will use the relevant agreement to apply for the recommended service of news and consultation on the connected Internet address, while the outside world The server can respond to these actions and respond to relevant information. The frame composition can be said to be very unique, which completes the action of replying to the chat records.(1) Authentication information: any WeChat social software account has the right to request a private custom function list on the subscription account management platform, click the check mark in the box in front of the developer option in the WeChat social software settings, and register at the same time URL and TOKEN protocols, in these two protocols, Token does not have any hard requirements, and can be registered at will to generate an electronic signature for a private subscription number. When WeChat social users upload relevant information, WeChat social software service ingtai will issue a GET application, and at the same time upload the relevant data to the URL and complete the relevant information. Subscribe to the server port and agree to the GET application. According to the TOKEN data filled in and recorded by oneself, the qualitative inspection of the application data is carried out to determine whether the get application is sent by the official server of the WeChat social management platform, and at the same time feedback the inspection results. The WeChat social software server will send back the feedback information according to the If the verification is correct, it can connect and start working, if it fails, it cannot be connected smoothly.(2) Push messages: Generally speaking, when a normal WeChat social software user sends a chat application to a subscription account, the WeChat social software management platform will first translate the chat content into data composed of special codes, and then the broken throat will translate The obtained data is uploaded to the management server of the subscription account provided by the official. Generally speaking, document data, photo data, GPS positioning data, image data and Internet address data can be sent.(3) Message reply: For each POST request, the public account server returns a specific xml structure in the response packet to respond to the message (supports reply text, graphics, voice, video, music and the received message Star mark operation), the WeChat server will disconnect the connection if it receives a response within five seconds.2. Functional structure design of WeChat official accountThe structural design of the message parsing function is mainly based on the definition of the system function menu, the menu input rule base and the processing method of the preset function of the menu kite. The main principle is: when a WeChat user sends a message, the system classifies the message type and obtains the corresponding message content for processing. When processing text messages, split and match through menu input rules, and then perform follow-up processing according to preset functions.SummarizeIn today's era, WeChat social software has long become an indispensable communication channel in the normal life of ordinary people. The subscription number service function of WeChat social software is to ensure communication between self-media and WeChat social software users. The basic guarantee and important channel for interaction. Companies and enterprises can use copywriting, images, messages, audio and video and other information in WeChat social circles to communicate with potential users in a certain circle to a greater extent, resulting in a more fashionable and popular online store A sales model that is interconnected with offline physical stores. This article describes a method that may be able to deal with issues related to the research and development of the WeChat social software communication platform's public account capabilities and a method that may realize some functions. On the other hand, this article also puts forward some suggestions and opinions on the changes of the function list.The above is the development and technology of the media WeChat official account introduced to you by Shenzhen Zuchuang Microelectronics Co., Ltd. If you have software and hardware function development needs for smart electronic products, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad, including MCU, voice IC, Bluetooth IC and modules, wifi modules. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth wifi development, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS solutions, the development of Bluetooth audio, the development of children's toys, and the development of electronic education products.
07-13

2020

Layered Technology for Software Development

The Method and Practice of Application of Layered Technology in Software DevelopmentLayering technology refers to the stage of computer software development, which divides and develops the software according to the difference in structure and function, solves the development problems from different levels, and ensures the close cooperation of different links and the internal logic. relation. In the process of software development, compared with single-layer technology, the application effect and comprehensive effect of layered technology are higher. Layered development technology mainly includes two-layer development, three-layer development, four-layer development, five-layer development and middleware development. technology. The number of layers of software development will change according to the actual situation, the requirements of users are different, and the requirements of different layers are also quite different.1.The characteristics of layered technology in software development(1) Strong pertinence: Since the computer software development system is relatively complex, and the functions of different computer software are also quite different, in order to improve the efficiency of software development, it must be pertinent. The layering technology clearly divides the functions of the computer system, divides the complex system into several fields with different functions, and different fields are handled by their own virtual layers. In this way, even if there is a problem in a certain field, it will not affect the whole, thus effectively avoiding the continuity problem of the software development system.(2) Strong flexibility and expandability: layered technology can effectively improve the flexibility and reliability of computer system operation, flexibly transform the original system during the development process, and then achieve the effect of shortening the development time of complex software. It can also guarantee the quality of the developed software. Layering technology can also moderately expand and upgrade software functions in a targeted manner, fundamentally change the upper and lower layers and functional layers of the system, to better meet the needs of computer software users, and improve and adjust different functional layers of the software system. Classify according to the needs, improve the analysis ability of the software, and finally optimize and upgrade the software, which effectively improves the reusability and scalability. Because of the strong flexibility of layering technology, it can also make the function of software better.(3) Strong technicality: layered technology can enable computers to define different interfaces by using layered technology, and achieve the greatest degree of seamless docking through standardized interfaces. Through such technical means, the relevance and difference of software can be improved , effectiveness, rationality and stability, improve the overall quality of computer software, reduce development costs, enhance teamwork capabilities, and ensure the warranty period and use efficiency of software.2. Specific application of layering technology in computer software development2.1 Application of double-layer technologyThere are two main endpoints in the two-layer technology, the client and the server. Customers can better improve the quality of the user interface through corresponding users, and effectively deal with the internal logical relationship. In this process, the server can receive user demand information from various levels, and then summarize the information inside the computer before putting it into use. Double-layer technology plays an incomparable role in improving work efficiency. If the user uses too much, the server will be paralyzed, and the computer will even be paralyzed in it. It should be said that the internal networking systems of many large companies operate on the basis of double-layer technology. And can have a good use effect in the future.2.2 Three-layer technologyThe three-layer technology is developed on the basis of the two-layer technology. It can even be said that it was developed on the basis of the second floor. For example, such a three-tier technology can help courier companies store more information, and effectively improve the efficiency of computer access for similar courier companies and logistics companies, and finally improve work efficiency. Compared with the two-layer technology, the three-layer technology will have a greater improvement and strengthening ability, and finally improve the access efficiency of the computer server.2.3 Four-layer management technologyIf there is no way to use double-layer technology and three-layer technology in the process of computer operation to make the computer run effectively in an effective environment. In particular, it is necessary to better integrate the database, interface layer and business processing layer within the three-tier technology, so as to better shorten the impact between the various levels. All four-layer technologies are extensions of three-layer technologies.The four-tier management technique is often applied to the management process of the library. In particular, it can better integrate the book resources in different periods and different regions, and finally form a database. In this way, we can better carry out informatization construction by fully enabling these digital services.2.4 Five-layer technologyThe five-tier technology itself is an expansion of the four-tier technology, and some large supermarkets will also use the five-tier technology to manage in the process of operation and management. Such five-layer technology can be widely used in various modules in the supermarket management process. First, if the five-layer technology is applied to the process of product entry, it is possible to comprehensively establish and maintain various information codes, and maintain and query personnel files in a timely manner. Cashier password and other related parameters. Second, the business management module can mainly manage the inventory of goods, and better summarize including return subpoenas, price adjustments, querying product balances, collecting product details and other types of business. Thirdly, the sales module can conduct a comprehensive query on the data at the front desk, and effectively monitor the return information, discount information, credit card information and the sales performance of the cashier. It is also necessary to change and monitor relevant sales data in a timely manner.It should be said that the five-layer technology is at the highest level in the computer hierarchy, and it is believed that it will be more widely used in the future.epilogueThe development of computer software, as an important link that can improve computer functions, is directly related to whether computers can provide convenience for people's daily life. Among them, the layered technology in computer software development is an important development technology, and its application effect is better. , can adapt to today's technological trends, and has broad development prospects, including two-layer technology, three-layer technology, four-layer technology, five-layer technology and middleware technology. Studying the application method and practice of this layered technology can not only meet the individual needs of software users, optimize the performance of computer software systems, but also ensure the efficiency and security of user information, and improve the speed of software development by software development companies. Save the development cost of the enterprise.The above is the method of using layered technology in software development introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have software and hardware function development needs for smart electronic products, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad: Songhan, Yingguang, Jieli, Ankai, Quanzhi, realtek, with MCU, voice IC, Bluetooth IC and module, wifi module. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth wifi development, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS earphones, the development of Bluetooth earphone speakers, the development of children's toys, and the research and development of electronic education products.
07-12

2020

JSP Application Software Technology

Technical Analysis of Web Application Software Development Based on JSPJudging from the development trend in recent years, computer and network technology have been significantly developed and widely popularized. In the context of the increasing use of computer software, this makes traditional production and life The methods have changed dramatically. Web application software based on network communication has begun to permeate all aspects of people's lives and bring convenience to people. With the increasingly mature JSP technology, it has also begun to have a lot of applications in Web development software. According to the results of practice, it has become the main development direction of related fields to achieve the purpose of developing Web application software system through the use of JSP technology.1. Overview of JSP technology1.1 Introduction to JSP technologyJSP is mainly developed by Sun, and the development of dynamic webpage production technology is mainly based on the Java language. It allows Java code logic to be embedded in HTML and XML documents. It can be said that, to a certain extent, It brings great convenience to the content creation and management of dynamic web pages. Compared with PHP and ASP, there are certain differences in the working mechanism. In the process of page execution, JSP pages are not interpreted, but compiled. The first call to the JSP file is actually a process of compiling the Java Servlet. When the browser sends the request for the JSP file to the server, the server at this time directly responds with the corresponding Servlet result.The scripting language provided by JSP is different from ASP technology in that it is more based on Java language. In addition, JSP can also easily access and reuse Java Beans. At the same time, JSP can completely separate the generation and presentation of Web page content. This will not only give full play to the powerful functions of HTML, but also prevent duplication of work, and significantly improve the overall efficiency.1.2 JSP operation modelIn HTML documents, JSP can embed scripting language into it. Before the client receives the transmitted Web page, it can get the analysis of the JSP syntax on the server side, and it will be treated as a Servlet. The suffix in the form of JSP will be reflected in the HTML file with the scripting language. Through the use of the Java language, JSP will be used as the default scripting language. This means that the purpose of scripting can be achieved by taking advantage of the powerful functions provided by Java.(1) Request a JSP: For tasks that have been defined in advance, such as accessing the database, you can call the reusable Java Bean through JSP, and then set the obtained result as a Bean. Through the use of these Java Beans, JSP can generate state and return it to the client. Those who develop JSP only pay attention to the interface of Java Bean.(2) Request a Servlet: It generates the dynamic information to be included in the response. This Servlet is used to represent the content generated by the Servlet by activating a JSP.In the first access model of JSP, the dynamic content is mainly realized based on the Java Bean in the page file, and JSP is responsible for the representation of the content.The client sends a request to it in the JSP request model. The specific Java Bean component receives the request forwarded by JSP, and automatically passes the request parameters to the Java Bean component through the introspection class of the Java Bean. Through the query of the Java Bean component, and then JSP gets the result. If the Java Bean component just realizes the Servlet interface target, then the service method of the Servlet can be invoked by any request. For the properties of the Java Bean component, if the JSP makes an inquiry every time, the Java Bean component can implement dynamic calculation processing and return the calculation result at the same time. With the help of standard Java Bean properties, JSP obtains the result of processing on its reader. And the obtained results are displayed in the form of HTML files.Another model looks like this:In the displayed JSP request model, the Servlet will receive a request from the client at this time, and the content on the HTML page is generated and displayed by the Servlet. In the model, the Servlet operates the database through JDBC to obtain the required data. The result data is encapsulated in JavaBean, and then JSP is responsible for receiving the delivered Java Bean. In the HTML file, the data generated by the Servlet is displayed on the file by JSP. In this example, the generation of data is completely responsible for by Servlet, and the representation of data is completely responsible for by JSP.1.3 The superiority of JSP technologyFor developers and designers, through the use of this technology, dynamic web pages, especially web application software systems, can be better created and maintained. In Java technology, it can be said that JSP technology is an indispensable part. It can develop Web applications independent of the same platform at a faster speed, and separate the user interface in the system content. Without any changes in the dynamic content, developers and designers can change the overall layout of the web page.1.4 Independence between platforms and serversThe established JSP is based on the independence between the server and the platform. The input support it has is mainly provided by various toolkits. For database products and server components, etc. are all provided by developers. Responsible for providing, after writing once, it can run in any environment that satisfies the Java syntax structure. In fact, no matter what kind of web server it is on, JSP technology can run, and it can provide corresponding support for various types of toolkits provided by different developers. It can be said that this technology can transform the traditional simple For a certain platform, or the situation of developers' attachment has been significantly improved.1.5 JSP technology has label extensibilityThe application of this technology allows developers to expand or apply JSP tags, and developers can customize the tag library. Therefore, for web page producers, the tag technology compatible with XML can be maximized. Therefore, this reduces the degree of dependence on the scripting language to a large extent. During the production of web pages, etc., the complexity of the work is also greatly reduced because of the label customization technology it possesses.1.6 JSP components have cross-platform reusabilityAll components of JSP have cross-platform reusability. This component can access traditional databases, and can realize the purpose of running on platforms such as Unix according to the distributed system mode. For the development of Web application software, using JSP components as the basic method can significantly increase the speed of its development process, and ensure that each organization can obtain a balance in its existing skills and development.2. Web application software architectureCompared with the past, the browsing requirements of the Internet have been significantly improved, so the C/S architecture obviously does not meet the needs of development. Therefore, the browser/server (B/S), as a novel software architecture, is just here. It can be said that it has achieved great development in a very short period of time. The B/S architecture, through the simplification of the client work, then achieves the optimization of the client, that is, it only needs to install and configure very few client application software, and the server will need to undertake most of the work. For the request Executing the application and accessing the database can all be done by the server.2.1 Access layerThe access layer is mainly located on the client side, and its function is to issue some kind of request, that is, it is sent from the web server of the web browser Internet, processed by the web server, and the result is fed back to the browser.2.2 Web server layerThe Web server layer is mainly located on the Web server side, and its function is to receive the request sent by the application program, and connect to the database, and then send the application for operating data to the database server, and wait for the result of processing the data.2.3 Database layerThe database layer is mainly located on the database server side. Its function is to receive the transaction processing requests sent by the Web server to the database, implement a series of data update operations, such as querying the database, inserting and deleting, etc., and submit them to the Web server. The result of running.The B/S structure effectively reduces the burden on the client, and significantly improves the performance of the entire system. In this way, for maintenance personnel, they do not need to run around in the heavy work of maintenance and upgrading every day, and at the same time, they do not need to update each client. In between, I was tired of the maintenance work of each program, but put more energy into updating the program work on the web server. There is an independent logic between the layers in the B/S architecture, which will not interfere with each other, that is, changes in any layer will affect the functions of the other two layers, and fundamentally eliminate the defects of the two-layer C/S architecture. It has been improved. It can be said that there is a very important change in the application system architecture.3. Technical Analysis of Web Application Software Development Based on JSP TechnologyBecause it is based on the Java language foundation, JSP technology can be realized, so it has very good adaptability. At the same time, through the effective combination with JAVA Enterprise API, Web application software can be better created, and it can also Guarantee the performance of web application software. As Web developers and designers, through the use of JSP technology, more energy can be placed on processing application logic, so the complexity of the underlying logic can be greatly simplified, and the developed Web application The quality of software has been significantly improved, and this is also a great benefit for designers, that is, the difficulty of its development has been reduced. Therefore, compared with other development technologies of Web application software, such as ASP development technology, JSP technology has significant advantages in this respect.According to the Web application architecture based on JSP technology, it can be known that during the development of Web application software based on JSP technology, the relationship between various parts and the functions in the entire system, such as JSP technology and JDBC, are very important. clear.This article will start to analyze at the technical level, and analyze the three-tier Web application software development, using JSP technology as the required components of the technology, as well as the required basic technology. Among them, JDBC technology can easily use the existing database as the basis to create a Web interface, JDBC technology, etc., can better construct a large-scale Web application system that is convenient for interaction and has various information content. It has been proved by practice that this Web application software system has a good use effect. Based on this, it has important practical significance no matter in terms of promotion or application.SummarizeIn fact, in the process of developing Web application software, the actual needs should be taken as the main reference basis, and the system design and modeling Web application software should be combined with the specific situation of system development. The implementation of Java programming language, and JSP development technology, the three-tier Web application software system built is closely combined, which has become the main direction of WWB software application software development in the future.The above is the technical analysis of JSP-based Web application software development introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. If you have software and hardware function development needs for smart electronic products, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad: Songhan, Yingguang, Jieli, Ankai, Quanzhi, realtek, with MCU, voice IC, Bluetooth IC and module, wifi module. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth wifi development, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS earphones, the development of Bluetooth earphone speakers, the development of children's toys, and the research and development of electronic education products.
07-11

2020

Java mobile phone software development

Application of mobile phone software development technology based on java development languageWith the advent of the information age, people's pace of life has become faster and faster. In order to make communication between people more convenient, smart phones emerged as the times require, and quickly occupied all areas of people's lives. Mobile phone software Development has also become a hot industry in today's society for a while. At present, most mobile phones in my country use the Android operating system, which uses java as the main development language. Therefore, it is of great significance to study the application of mobile phone software development technology based on java development language.1. Overview of java development language1.1 The Connotation and Essence of Java Development LanguageAnalyzed from the perspective of language types, the java language can be classified as a design language based on network programs. Because of its high application effect and wide application range, almost all programmers need to use this language in the process of designing network application programs. Generally speaking, the specific object of the Java language in the design process is the programming language inside the software system. The main purpose of the design is to coordinate the different requirements between different software and application programs, so as to achieve the purpose of improving the internal utilization efficiency of software applications. After the java language is interpreted and compiled, it will form two different processes, and after translation, it can form the source code required for system design, and can also realize the conversion of virtual machine functions, which can be used in the identification programs of other electronic devices. Among them, the java virtual machine is an imaginary operating device that realizes software simulation work through a computer. After the source program of the java language is translated, the corresponding bytecode can be obtained. This bytecode can be interpreted and translated, and applied to the receiver As machine code in the machine, it can also be recognized by the virtual machine and applied to the programming work.1.2 Features of java development languageAs a new technology in the development of modern society, java language can be applied to the development and design of mobile phone application software, and because of its good security and reliability, it has a good scope of use in the development of mobile phone software applications. According to the survey, the author concludes that the java language has the following two main features, namely object-oriented and reliability. Because all objects in the Java language are not restricted by entities, in the process of encapsulation, the methods and data covered by all objects are processed uniformly, realizing the good encapsulation function of the Java language. Moreover, compared with the traditional procedural programming language, the object programming performed by java language is all centered on the object, and the message is its main driver. Therefore, the Java language is a programming language between objects and messages. In addition, compared to other software programming languages, the java language is relatively safe and reliable, so the java language is widely used in the software application design and development of different types of electronic products. Although the java language has not yet implemented pointer support, the java language can effectively reduce illegal access, thereby effectively ensuring the security and reliability of the electronic product system software.2. Discussion on the application of mobile phone software development technology based on java development language2.1 The main methods of java mobile phone software developmentIn the development process of mobile phone software, the java development language is the main writing tool used. After it is packaged into a file in apk format, the application program can be regarded as an arbitrary file. Under normal circumstances, when the application program in the Android mobile phone is in the default state, linux can run independently. When the user must use an application program in the mobile phone to execute the relevant code, linux will automatically start For a program, if the execution code started in this way cannot meet the requirements of the program, the started application will automatically switch to the stopped state and will not continue to run. It can be seen from this that the mobile phone software based on the java development language will have a certain degree of independence in the process of running.Although the Java development language is derived from the C++ language, it removes many unreliable factors in the C++ language, which can prevent programming errors in the development of mobile phone software. When developing mobile phone software based on the java development language, developers can use the security mechanism of java to prevent the emergence of virus programs and avoid threats to the local system caused by downloaded programs. When the bytecode of the java language is input into the interpreter, it should first be checked with a bytecode verifier, and then the java interpreter determines the memory layout of the software program. Next, the developer can use the class loader to load the classes in the network area into the separate memory area of the mobile phone software, so as to avoid mutual interference and destruction between different software programs. Finally, the client's mobile phone software user can use classes loaded from the network to set access restrictions so that others can only access part of the file system.2.2 Precautions for java mobile phone software developmentFor mobile phone software developers based on the Java development language, the authority setting work must not be ignored. No matter in the design of the user interface, or in the use and acquisition of resources, more attention must be paid to the authority setting work . For mobile phone software permission settings, its function is mainly to protect each application program in the mobile phone. In general, when mobile phone software developers name permissions, they should obtain the corresponding permissions by the way, so that users of mobile phone software can get a better experience. In addition, the developer should also add some appropriate tags to the application and explain these tags in detail, which is also the support provided for the set permissions. Generally speaking, in the process of generating the user interface, developers can mainly use two generation methods, one is to generate directly with the corresponding code, and the other is to use the XML configuration of the mobile phone software to generate. It should be noted that when developers use the XML configuration of mobile phone software to generate, they must do UI design work in advance, especially paying attention to linear layout and relative layout. When obtaining and using resources, developers need to write the supported format of the file on the basis of the Java development language, so that the application program can realize the effective analysis of the resources when it is running, and at the same time, it can quickly complete the development of the software. non-code tracing.2.3 The creation of java mobile phone software development environmentWhen developing mobile phone software based on the Java development language, developers need to focus on developing and researching the application layer software of the mobile phone. When developing mobile phone software, we must pay attention to the creation of the mobile phone software development environment. Only in a good mobile phone software development environment can the java development language better help developers develop mobile phone software. At the same time, developers should also pay more attention to Eclipse security work, as well as the installation of plug-ins and the installation of Anroid SDK. The reason why we should pay attention to the creation of the mobile phone software development environment under the java development language is mainly to enable the mobile phone system to start normally. Provide a good environment for the application of java development language in mobile phone software. For the installation of plug-ins and Eclipse, developers should first download these software from the official website, and install them immediately after downloading. The main purpose of installing the Anroid SDK is to package the resources in the database, and then download other software after the package is completed, and link it with the environment required for software development, do a good job in the design of mobile phone software, etc. Do not connect until the work is complete. Generally speaking, the mobile phone software based on the Java development language is rarely limited by the hardware of the mobile phone during the development process, and only the software part needs to be designed by the developer. Ensuring that the two can be kept independent from each other in the time of development and design will not only improve the security of the mobile phone software, but also improve the reliability of the mobile phone software.3. Design and application of mobile phone encryption software based on java development language3.1 Utilization of platforms and technologiesAt the current stage, the most commonly used mobile phone system is the Android system, which was first developed by Google in the United States. The Android system not only has very powerful performance, but also has a very open feature, and this unique openness is also the main reason why the Android system can quickly become the leader of mobile communication devices after its advent. In the Android system, Eclipse is a development platform based on the java development language. For Eclipse, it is not only a piece of software in the java development language, but also a further expansion of the development tools based on the java development language. Therefore, if you want to design mobile phone text message encryption software, you must rely on the DES encryption algorithm. The DES encryption algorithm can use cyclic and iterative methods to complete the calculation transformation in the mobile phone software, which can not only encrypt data, but also protect data. Generally speaking, the main ciphertext information in the DES encryption algorithm is composed of keys and binary information. According to relevant investigation and research, due to the common influence of the number of digits of the key and the number of iterations, some defects often appear in the DES encryption algorithm. Therefore, for the information with fewer characters in the short message, the encryption process should be completed by 3DES, which can effectively improve the encryption degree of the information.3.2 Realization of java SMS encryption softwareFor developers of SMS encryption software based on the java development language, if they want to do a good job in 3DES encryption and decryption, the most important operation is to set the encryption and decryption procedures. In general, developers can use Ek() and Dk() to represent DES encryption and decryption respectively, where K means the DES algorithm, P means the plaintext, and C means the secret table. It can be seen that the encryption method of 3DES can be expressed as C=Ek3(Dk2(Ek1(P))), and the decryption formula of 3DES can be expressed as P=Dk1((EK2(Dk3(C). Through actual investigation and The research shows that there is no problem in the process of writing mobile phone software, so it can be concluded that the cause of the deviation of the encryption result is MODE and padding. In view of this situation, developers must use exactly the same MODE when coding through the java development language and padding, so as to ensure the normal communication of mobile phone software.For developers of SMS encryption software based on the java development language, when using the DES encryption algorithm to develop and develop the encryption and confidentiality of mobile phone information, they should flexibly use the mobile phone platform to achieve these operations, which requires developers It is necessary to write the encryption program and decryption program of the mobile phone software in advance, so as to improve the running speed of the encryption software and ensure the operation effect of the encryption software. The specific steps are as follows: first, the developer should connect the mobile phone used for development work to the corresponding computer, and write the encryption and decryption program and the decryption program through the virtual platform on the electric energy, so that the information encryption work of the mobile phone software can be more conveniently. Immediately afterwards, the developer should enter the software into the sending and receiving position of the short message, and observe the sending and receiving of the short message. Then, the developer needs to run the mobile phone program, use the message interface of the encryption software to write the encrypted information, and then determine the contact person of the software after the writing is completed, thus completing the writing of the information. Finally, the developer needs to enter the receiving interface of the mobile phone and write the information just received, so as to complete the decryption of the software information.SummarizeIt can be seen that the mobile phone software development technology based on the java development language is still in the stage of continuous development, but it has also achieved very good research results, and it also has a good performance in the application of mobile phone encryption software. With the continuous advancement of science and technology, technicians in the mobile phone software development industry should continuously improve their comprehensive capabilities, innovate on the basis of the java development language, develop more new software, and improve the encryption performance of the software to enable functions The software in the mobile phone can better serve people's life.The above is the application of mobile phone software development technology based on java development language introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. If you have software and hardware function development needs for smart electronic products, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad: Songhan, Yingguang, Jieli, Ankai, Quanzhi, realtek, with MCU, voice IC, Bluetooth IC and module, wifi module. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth wifi development, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS earphones, the development of Bluetooth earphone speakers, the development of children's toys, and the research and development of electronic education products.
07-10

2020

Electronic equipment software development

Research on Software Development Process of Special Equipment in Electronic IndustryIn the field of special equipment for the electronics industry, with the further enhancement of computer computing power, there are more and more equipment integrated control systems based on computer platforms, and the proportion of equipment functions realized by software is increasing. The complexity has also increased. The original structured, sequential, and single development process can no longer meet the requirements of today's large-scale, short-cycle, high-quality, and serialized software development. Research on the development process, guided by software engineering ideas, research the whole process of software development, and explore the equipment software development process suitable for specific application requirements.1. Introduction to the mainstream software development processThe purpose of software engineering is to advocate engineering principles, principles and methods for software development [1]. Software engineering is a marginal discipline between software science, systems engineering and engineering management. The software development process follows the theoretical basis of software engineering. The software development process is the structural framework of all processes, activities and tasks implemented in system development, operation and maintenance across the entire software life cycle. Typical software development processes include waterfall model, V model, spiral model, and agile development. No matter which model is used, the software development process must include activities that support the entire life cycle of the software.The waterfall model is the most primitive software development model, and the waterfall model well reflects the various stages of software development, as shown in Figure 1. The problem of the waterfall model in requirements and design is that it cannot be detected in the early stage of project development. Only when the system is integrated for the first time, these design defects will be exposed in the test, resulting in a series of rework: redesign, Coding and testing lead to project delays and increased development costs.The V-model is a variation of the waterfall model that demonstrates how to link test and analysis design. As shown in Figure 2, the vertices coded V, analysis and design are on the left, and testing and maintenance are on the right. The V-model suggests that unit and synthesis tests should also be used to verify program design. That is, coders and test team members should ensure that the system design aspects of program design have been properly implemented in the code. Similarly, system testing should verify the system design, ensuring that all system design aspects are implemented correctly. Acceptance testing validates requirements by associating a test step with each element in the specification. The linkage of the left and right sides of the V model implies that if problems are found during verification and validation, then the left side of the V can be re-executed to modify and improve the requirements.Spiral model is a model designed for high-risk projects [3]. Each of its cycles includes four stages of planning, risk analysis, implementation process, and review, which are iterated by these four stages. With each iteration of the software development process, software development advances to another level. The software process using the spiral model is shown in Figure 3.The basic method of the spiral model is to introduce a very strict risk identification, risk analysis and risk control before each development stage of the waterfall model, which decomposes the software project into small projects. One or more major risks are identified for each subproject until all major risk factors are identified. Compared with the waterfall model, the spiral model supports the dynamic change of user needs, provides convenience for users to participate in all key decisions of software development, and helps to improve the adaptability of the target software. And it provides convenience for project managers to adjust management decisions in time, thereby reducing the risk of software development. However, the use of the spiral model requires considerable experience and expertise in risk assessment. In the development of high-risk projects, if the risks are not identified in time, it is bound to cause heavy losses. Excessive iterations increase development costs and delay commit times.2.The characteristics of the electronic industry special equipment softwareThe special equipment software for the electronics industry is a type of application software system that runs on the electrical design hardware platform of the specific component equipment, coordinates the various parts of the drive equipment to complete the system integration, and thus meets the specific process requirements of customers (customers). Special equipment software is a large branch of software, which is widely used in industrial production. This type of software is very different from ordinary commercial software. Commercial software is only applied to computers, while special equipment software is based on computer platforms.The scale of modern equipment software is getting bigger and bigger, from only a few hundred lines of code initially to tens of thousands or even hundreds of thousands of codes in modern equipment, and the proportion of software in the function realization of equipment is also increasing. The special equipment software is closely integrated with the hardware, requiring the software to have a friendly man-machine interface, real-time display of various key parameters, high reliability, and stable operation for a long time.In addition to the hardware facilities of the equipment, the production process of the equipment has a huge impact on the development of the software. Software requirements analysis is a comprehensive analysis of the electrical design and production process of the equipment. Therefore, in the process of software development for special equipment, it is necessary to combine the existing hardware platform with the production process. However, in the development process of new equipment, the equipment has not been put into production, and the production process is not clear. The initial requirements are not clear, and it needs to be adjusted continuously during production. Development brings great inconvenience. However, device software generally only runs on a single device, and the scale of the software is small and medium, so that the impact of changes in requirements on software development is within a certain range.3. Software development process for special equipment for the electronics industryCombining the characteristics of special equipment software in the electronic industry and the advantages and disadvantages of various software development processes, according to the characteristics of equipment special software, such as unclear initial requirements and changing requirements during the development process, a software development process based on the spiral model is designed.First develop a stable software architecture according to the initial requirements, complete a minimum prototype of the software, then complete multiple intermediate versions based on the minimum prototype of the software according to changes in requirements, and finally complete a version that meets customer needs. The software development process is shown in Figure 4.Description of the software development process:(1) Project pre-research stage. The main activities are to carry out pre-research and investigation of the project, communicate with customers, estimate the risk and development progress of the software project, evaluate whether the software project is technically feasible, and evaluate the risk of software project implementation. The corresponding documents are project contract, project feasibility study report and project development plan.(2) Project development stage. Project development can be divided into multiple versions such as minimum prototype version, intermediate version and final version. Each version can be divided into five stages: requirements analysis, general design, detailed design, joint debugging test and version release.Project development begins with a minimal prototype version, which contains the core functionality of the software. It is the basis for intermediate version iterations. After the minimum prototype version is completed, the development of the intermediate version will continue. The development of each intermediate version will continue to add modules and improve software functions on the basis of the previous version. The modifications made are recorded in each development file, and the process is consistent with the minimum prototype version, so that iterative development of multiple versions is carried out until the final version is completed. The documents that need to be added in the software release stage of the final version development include the user manual and project development summary, and the software will be reviewed by both parties to the contract. After the software has passed the review after equipment process debugging and acceptance, it should be made into an installation package for customers to use. , enter the maintenance stage after passing the review.(a) Requirements analysis stage: The corresponding document is the software requirements specification. For equipment software, it is important to understand the production process, and draw UML use case diagrams in the requirements specification. When the requirements analysis is completed, conduct a requirements analysis review and form a review opinion. (b) Outline design stage: complete the overall architecture design, divide into modules, complete the outline design specification and software test plan, and have a detailed software architecture diagram in the outline design. When the outline design is completed, carry out the outline design and fill in the review comments. (c) Detailed design stage: write codes for each module and write detailed design instructions. The charts in the detailed design instructions include UML static diagrams of classes, sequence diagrams, and module logic flow charts. Codes and documents are reviewed after the design is completed. Conduct quality reviews. (d) Joint debugging and testing phase: debug the code on the device platform, fix the errors in the program and record them in the software debugging report. (e) Version release stage: After passing the software acceptance review. Release a stage version, giving a version number.(3) Maintenance stage. During the software maintenance process, if software quality problems are found, the problems should be submitted in the form of documents for technical discussion, researched and solved, and the solutions should be recorded in the software maintenance report. When the software is improved, it shall make improvement records and upgrade the version, and upgrade the software documents that need to be changed. After the software is upgraded, the software upgrade package, upgrade content description and operation manual shall be provided.By adopting this software development process, various software development documents are formed in the software development process. Documents are the components of the software, the drawings of the software, and the expression of design ideas. It is necessary to ensure that the documents are complete and effective. The documentation provides a basis for checking the work progress of developers, ensures the controllability of software product development, and guarantees the quality of software products. Even if there is a change of value of the original software developers, the new software developers can continue to work quickly according to the retained documents, ensuring the sustainability and maintainability of software development.SummarizeThe special equipment software development process manages the development process of software projects accordingly, clarifies each stage in the process, required software documents and related activities, and improves the controllability, sustainability and reliability of electronic special equipment software research and development. Maintainability ensures that the software becomes a quality product. In the specific application, it should be flexibly adjusted according to the different situations and characteristics of the project, and it cannot be generalized.The above is the software development process of the electronic industry special equipment introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have software and hardware function development needs for smart electronic products, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad: Songhan, Yingguang, Jieli, Ankai, Quanzhi, realtek, with MCU, voice IC, Bluetooth IC and module, wifi module. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth wifi development, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS earphones, the development of Bluetooth earphone speakers, the development of children's toys, and the research and development of electronic education products.
07-09

2020

Application of Software Reuse Technology

Software Reuse Technology and Its Application in Software DevelopmentSoftware reuse technology has many advantages, it can reduce production costs, improve the quality of software products, improve system compatibility and so on. R&D personnel are also making continuous efforts to reduce the risk of software development and improve the system functions of the software. This process is a process of accumulation and improvement, and it is also a long process. Proper application of software reuse technology can make the software industry achieve a reasonable division of labor, production standards, and professional production. my country is also moving towards a software power, so our country must seize this opportunity and move towards a power.1. Overview of software reuseSoftware reuse is to use all kinds of relevant knowledge of existing software to create new software, so as to reduce the cost of software development and maintenance. Software reuse is an important technology to improve software productivity and quality. The concept of software reuse technology was put forward after the software crisis. In this crisis, people realized that software reuse technology is an effective way to solve expensive maintenance costs. The purpose of software reuse is to reduce capital investment in development and maintenance. Software reuse technology is to rely on the original software to build new software, thereby improving production efficiency. With the development of the economy, software reuse technology has been widely used in the computer industry. Reusable components are applied in software reuse technology, and there are two main ways to reuse them:(1) The component is modified to a certain extent before use; (2) The original component is used without major modification. It is worth noting that software reuse and sharing are not the same concept, we need to distinguish the two.2. Software reuse technology2.1 Code reuseThe reuse of software is also divided into levels, and the benefits of different levels will be different. Different levels of software reuse represent different benefits. Code reuse mainly relies on reusable components, which can be widely used because of their flexibility. Code reuse includes two contents, one is the object code, and the other is the source code, and the source code is higher than the object code to a certain extent.2.2 Design reuseDesign reuse can not only reduce the number of software modifications, but also increase the chances of reuse of reusable components. Design reuse does not have high requirements for the environment. There are three ways to reuse designs:(1) Renovate the existing system and apply it on the new platform. (2) Apply the existing design results to the new software. (3) Independent innovation, not dependent on other software, to achieve new development of components.2.3 Reuse of analysisDemultiplexing is a high-level multiplexing, which has great advantages in solving abstract and complex problems. There are three main ways to reuse analytics:(1) Apply the existing data and conclusions to the new system analysis. (2) Independent research and development of new components. (3) Apply multiple designs of the software platform.3. Obstacles to the realization of software reuseThere are many constraints that hinder the development of software reuse technology, such as technology, human factors, management, education, law, spiritual products, etc. It is difficult for a system to use a kind of software. If you want to achieve a good match with the software content, you need a certain amount of components, but it takes a lot of time and effort to obtain a large number of components. Software development is obviously innovative, and software developers like to use the software they design, or even develop a new software by themselves. Allowing software workers to manage software production can effectively stimulate the enthusiasm of the staff, promote the improvement of software reuse technology and the expansion of scale. At present, our country still lacks corresponding professional teaching materials and experience.4. Object-oriented technology and its support for software reuseThe most popular and recognized reuse technology today is object-oriented technology. Object-oriented technology is because the model can be a direct mapping of the problem, which will reduce the difficulty of linking in software development and reduce the workload of the staff. Improve work efficiency and improve work accuracy. Inheritance, encapsulation, aggregation, etc. form the concept of object-oriented technology, and reuse technology is also very suitable for this, and has positive significance for software reuse. This software engineering method has great consistency throughout the entire life cycle, so systems in different stages and different forms have a good mapping, and this mapping runs through almost the entire software life cycle. Object-oriented technology can realize the efficient use of software reuse and achieve an excellent overall effect.5. Research and Application of ReuseToday, software reuse technology has developed to a certain scale and level, which has brought great convenience to industries such as computers.(1) The domain analysis method has been successfully applied to the field of motion control in the United States, and this analysis method is feature-oriented.(2) CMU proposes a product line system approach. Examples of successful use of this approach include the US Air Force Electronic Systems Center's product line system, which embodies the concept of software reuse.(3) Technical support for component assembly—JAVA technology is widely popular, and software reuse technology and object technology have realized an effective combination.(4) The Jade Bird Project, which focuses on the research of software industrialization production technology, is an important scientific and technological project in my country. Jade Bird Software production line system object-oriented technology, software industrial production mode will be further expanded.6. Development trend of software reuse technologyThe quality of software has brought huge crises and challenges to the software industry, and we must actively respond to and continuously improve the quality of software. Software reuse technology still has great potential and market at present, which requires in-depth research by relevant researchers and staff to continuously increase market share. People's attention to software engineering technology has brought a better development platform and a broad market for the development of the software industry. On this basis, we must pay more attention to the improvement of software reuse technology and component technology, and gradually realize internationalization.SummarizeThe attachment of spiritual products is software product to a certain extent, it comes from the human brain, so it is the essence of people's thoughts. The greatest charm of software development is that developers can give full play to their imagination and endow software. Therefore, software products cannot be measured by real objects. Software is very complex, and so is software reuse technology. The key to software reuse technology is to understand and flexibly use the idea of software reuse.The above are the details of the software reuse technology and its application in software development introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have software and hardware function development needs for smart electronic products, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad: Songhan, Yingguang, Jieli, Ankai, Quanzhi, realtek, with MCU, voice IC, Bluetooth IC and module, wifi module. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth wifi development, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS earphones, the development of Bluetooth earphone speakers, the development of children's toys, and the research and development of electronic education products.
07-08

2020

Internet of Vehicles software development method

Mobile client software development method and practical application of Internet of VehiclesWith the continuous development and use of smart cars all over the world, the Internet of Vehicles technology has entered an explosive period of technological development. The United States and Japan and other countries with relatively developed automobile industries have realized information exchange and communication between roads and vehicles, laying a relatively solid foundation for the realization of intelligent transportation. According to relevant forecasts, in the next five years, the total value of the global Internet of Vehicles market will reach 300 billion yuan, and the Internet of Vehicles will cover 90% of the new cars that leave the factory in 2020.1. Development Status of Internet of VehiclesThe number of motor vehicles in my country is close to 300 million. Now alleviating traffic pressure and reducing traffic accident rates have become the core issues of building a smart city. The development of the Internet of Vehicles system provides a new solution to this problem. The Internet of Vehicles is a data exchange system based on the vehicle-mounted mobile network, the inter-vehicle network and the in-vehicle network, and based on the established communication protocol, which ensures the information exchange between vehicles and people, and between vehicles and people, and then realizes In order to control the vehicle in an intelligent way. With the improvement of Internet of Vehicles information technology, it is possible to dynamically monitor the driving conditions of vehicles according to real-time road usage conditions and adjust the driving mode in time, so that the limited urban road resources can be better and rationally used, and the traffic conditions of various vehicles in the city can be understood. The good operation status of the system will eventually realize the purpose of link traffic pressure, rational planning of travel routes, reduction of exhaust emissions, and improvement of environmental governance capabilities. Lower carbon emissions, higher road use efficiency, reduced urban safety hazards, and provided effective support for urban civilized management.2. Mobile Client Software Technology of Internet of Vehicles2.1 Mobile NetworkMobile network: The mobile network is based on the wireless network technology that has been maturely used at present, and is connected to the APN technology to provide a more reliable access method to ensure that the vehicle terminal users can achieve effective wireless data transmission. Allow the public to use general public network cards to achieve effective connection with the network, so as to achieve fast and safe network data transmission. Shared APN: Generally in the industry, the APN cards used by the public use shared domain names. In the internal network, the GGSN equipment is connected according to the protocol of the public Internet. This completes the good intercommunication between industry customers and vehicle terminals, not only Inexpensive, less expensive to develop, and faster to use. Security network mechanism: For users with strong security awareness, security protection systems such as enterprise-level firewall equipment, AAA authentication servers, and DDOS protection equipment and systems are provided. Ling Firewall: Provides a variety of firewall products including filtering, application gateway, state detection and composite firewall, etc., provides users with firewall devices of different levels and security levels, and helps users better choose their own travel network devices and services. AAA authentication server: AAA authentication provides a secondary authentication management platform for industry customers APN access, which can realize authentication, authorization, and item accounting and other functions, and can legally authenticate the user's identity, and assign different levels to users access rights. Based on the AAA platform, it realizes the authentication of APN users in terms of security requirements, and can also provide the functional effect of dual management of business and system. By combining APN products reasonably and legally, enterprises can also enjoy AAA certification services, which not only enables users to enjoy better wireless communication services, but also improves the competitive advantage of APN technology in the Internet of Vehicles market. DDOS protection equipment/system: Based on the backbone network, deploy DDOS detection equipment to industry customers, provide customers with real-time detection of user traffic services through reasonable control and release of normal traffic and continuous filtering of total traffic, to ensure that customer network systems are in good condition security status. By deploying the DDOS protection system, the security of the network system can be improved.2.2 Multiple terminalsRealize multi-cloud access solutions including mobile phone terminals, PC-type terminals, enterprise information terminals, and vehicle-mounted terminals embedded with SIM card chips, and realize the effective commonality of Internet of Vehicles, multiple terminals, and cloud services.(1) Mobile phone terminals: Both the Android and Apple operating systems currently used by mainstream mobile phones can support and be easily accessed.(2) Personal PC terminals: The current PC operating system can also allow the access of mainstream Windows, MacOS and Linux operating systems, and the support of mainstream browsers includes IE, Google, etc.(3) Vehicle-mounted terminals: According to different equipment manufacturers, the range of vehicle-mounted terminals is somewhat different, but in order to better meet the needs of the market, the compatibility will be further expanded.(4) Industry application terminals: Provide convenience for the access of fixed manufacturers, such as Huawei and other chip modules, and further expand the scope of industry application terminals according to market feedback.(5) Vehicle Wi-Fi: The vehicle Wi-Fi access function is realized, and the mobile terminal in the vehicle can share the network. With the continuous development and operation of the Internet of Vehicles technology, the number and types of terminals supported will also continue to increase.3. Mobile Client Software Development Strategy of Internet of Vehicles3.1 Realize an integrated service platform for enterprises and usersThe Internet of Vehicles technology is a free value-added service platform for enterprises and users. Personal channels can realize self-service top-up function. By building the integrated service function of the platform, it not only provides service platforms for enterprises in a compulsory way, but also provides personalized services to customers, thereby increasing the utilization rate of individuals and enterprises.3.2 Realize the transformation from "traditional SIM" to "machine-specific M2M card"According to the monitoring of the surrounding environment including changes in temperature difference, vibration and humidity during the driving process of the car, the special requirements of some enterprises are met, and specific chip modules are tailored for special enterprises.The solution mainly uses industrial-grade vehicle-mounted equipment, and uses a special M2M special-shaped chip, which has the functions of temperature resistance and moisture resistance, and can be integrated into the vehicle-specific communication module to reduce costs and prolong life. Integrated products to increase the added value of products.3.3 Analysis methods based on big data miningBy collecting and analyzing about 50 TB of original bills and location data per day, referring to the 3GPP communication protocol specifications, mining the required field information in the original data such as CELLID, IMEI, IMSI, and traffic, and formulating analysis and statistical rules according to requirements, to achieve Matching between machine and card, location positioning and traffic statistics and other related application analysis.3.4 Multi-source positioning technologyBy combining the two positioning technologies of GPS and LBS, and supporting AGPS positioning technology, precise positioning with an accuracy of centimeters can be achieved. And combined with the urban road traffic conditions in real time, it provides diversified positioning and road selection services for vehicle users.SummarizeThe development of Internet of Vehicles information technology will further promote the development of intelligent transportation, and truly realize functions such as intelligent bus management, parking lot management, traffic flow monitoring and management, and intelligent signal management, so as to achieve reasonable guidance and scheduling of road vehicles. Improve the efficiency of road use, link road traffic pressure, reasonably reduce the probability of accidents, reduce carbon emissions and energy consumption, and provide support for a conservation-oriented society.The above is the development method and practical application of the IoV mobile client software introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. If you have software and hardware function development needs for smart electronic products, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad: Songhan, Yingguang, Jieli, Ankai, Quanzhi, realtek, with MCU, voice IC, Bluetooth IC and module, wifi module. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth wifi development, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS earphones, the development of Bluetooth earphone speakers, the development of children's toys, and the research and development of electronic education products.
07-07

2020

WeChat applet development method

1. What is a WeChat Mini ProgramWeChat Mini Program, also known as Mini Program (Mini Program), is a lightweight application that does not need to be downloaded, is ubiquitous, available anywhere, available at any time, ready to use, and does not need to be uninstalled. The design concept is extremely simple. Users can scan the QR code or click the application to open and use it through WeChat, which is convenient and fast, and the user experience is very good.In January 2017, Zhang Xiaolong announced the official launch of the mini-program. Once the mini-program was launched, it caused a sensation. It can achieve a variety of functions, among which the official account association function is particularly eye-catching. Through this function, users can achieve mutual access between Mini Programs and Official Accounts through menus or other methods. This not only simplifies the access process, but also optimizes the user experience and improves traffic conversion. It is precisely because of the ultra-high traffic conversion rate brought by the mini-programs that many well-known companies have launched mini-programs immediately, such as Maoyan Movies, which focus on service functions, and Toutiao, Yicai, etc., which focus on content production. The main applet. And in the following time, the number and types of small programs showed a trend of explosive growth.The official positioning of applets is "light applications", that is, simple basic applications, which are not only easy to use, but also greatly reduce the development threshold. The development difficulty of small programs is much less than that of APP development, and it is suitable for the conversion of applications with simple functions or infrequent use. Media, enterprises, governments, other organizations, or individual developers can all apply for registration of Mini Programs. For developers, applets are undoubtedly a new opportunity and direction.2. Features of WeChat Mini ProgramsThe rapid development and expansion of WeChat mini-programs is precisely because of its accurate positioning and many advantages in terms of user experience and product development. First of all, the WeChat applet does not need to be downloaded or installed, and users can use it immediately after opening and leaving. There is no need to download and install the APP, which saves traffic, saves mobile phone storage space, and saves user operation time. Secondly, because the front-end code of the mini program is stored on the WeChat server and stored in Tencent Cloud, there is no need to load it, it can be opened directly, and the response speed is fast. Thirdly, the functions are abundant and the development cost is low. It can be developed based on the system functions of mobile phones, such as gravity sensing, audio and video recording, GPS positioning, etc., and can develop richer usage scenarios. For the same function, it is estimated that it will cost hundreds of thousands or even hundreds of thousands of yuan to make an app, but it can usually be completed with a few thousand yuan to develop a small program. Program maintenance is also relatively simple and convenient. Furthermore, there are many portals open to the mini-program. In addition to common portals such as scanning codes, sending friends, searching, and nearby, it can also be associated with official accounts, embed articles in groups, and link to official account menus. In other words, promotion is easier, simpler and more cost-effective. Finally, high security and good user experience. The applet needs to be reviewed before it can be released. The communication uses https access, SSL encrypted communication, and the style code is encapsulated in the WeChat applet, so the security is relatively high. At the same time, from the perspective of user experience, compared with various APPs that vary widely, the interface and operation methods of WeChat applets will be more unified, which greatly reduces the difficulty of use for users.Compared with official accounts, mini programs have many advantages. The official account, especially the subscription account, is placed on the secondary interface. The operation delay is large and the opening is relatively slow, while the small program opens quickly and is close to the original APP. In this regard, the experience is far better than the official account; the official account cannot update the news in real time , and the applet can update the content from time to time, and it will be automatically refreshed every time it is opened; the official account has fewer interfaces, while the applet currently has 56 interfaces. From a positioning and technical point of view, there is also a big difference between the two. The official account is positioned on marketing and information transmission, while the mini program is mainly positioned on products and services; the official account is developed based on HTML5, while the mini program is based on WeChat’s own development environment and development language.Compared with APP, applets are also very different. First of all, the user groups are different. The APP is for all smartphone users, and the Mini Program is for all WeChat users. Second, development costs are different. APP development costs are high and the cycle is slow, while the development cost of small programs is low, a set of codes can be used by multiple terminals, and the development cycle is fast. Again, the download and installation methods are different. APP requires users to download and install from the app store, while mini programs can be easily obtained through WeChat scanning, sharing, searching and other methods. Furthermore, the product release method is different. APPs need to be submitted for review to N app stores, while mini programs only need to be submitted for review to the WeChat public platform. Furthermore, the memory usage is different. APPs always occupy memory space, while small programs occupy negligible memory. Finally, the message push method is different. APPs allow messages to be pushed to mobile phones, while mini programs are not allowed to actively send advertisements to users.3. Application and Registration Process of WeChat Mini ProgramsIndividuals, media, enterprises, governments and other organizations can register to develop Mini Programs and become the registered subjects of Mini Programs. There are two ways to apply for the Mini Program:1. Registration Method 1 of WeChat Mini ProgramApplicable to those who have never registered a WeChat service account, subscription account, or mini program.First prepare an unregistered WeChat (service account, subscription account, applet) mailbox, if not, please go to the relevant mailbox website to apply for one. Log in to the WeChat public platform (http://mp.weixin.qq.com/), click the "Register Now" button in the upper right corner to start registration. Select the type that needs to be registered on the page, and click "Mini Program" to enter the mini program registration page. Fill in the email address, set the login password, fill in the verification code on the page, check the "Agree Agreement" option, and then click the "Register" button, WeChat will send an email to the email, enter the email for verification, and click Verify in the email link to activate the account. Next, you need to register the user's basic information and confirm the type of the Mini Program registration subject. It should be noted that the verification methods are different for different subject types.1) Mini Programs registered as individuals. This method is applicable to the case where the subject type of the mini program is selected as an individual. It is necessary to fill in the personal profile information. After completing the identity verification, the registration is successful.2) Mini programs registered as organizations. Consistent with the mini-program process of registering as an individual, you also need to provide your own personal information. It should be noted that the company name must be exactly the same as the name on the business license, otherwise the Mini Program will not pass the review and all information will be filled in again. There are two options for registration: payment to a public account and WeChat authentication. Relatively speaking, the WeChat authentication method is faster and more convenient, and is recommended as the first choice.Finally, register the administrator information. It should be noted that once the main information of the WeChat Mini Program is submitted, it cannot be modified.2. Registration Method 2 of WeChat Mini ProgramApplicable to official account quick access to mini programs, you can quickly register mini programs with the original official account qualification. There is no need to resubmit the main materials, and there is no need to pay a certification fee of 300 yuan.First, log in to the WeChat public platform (https://mp.weixin.qq.com/), enter the existing official account, enter the mini program management page, and check "Quickly register and authenticate the mini program". Then, with the help of the official account qualification, bind the administrator of the mini program to complete the registration of the mini program.4. The file structure of the WeChat appletThe WeChat Mini Program consists of an app that describes the overall program (global, their content affects all pages) and multiple pages that describe their respective pages. The typical directory structure of WeChat applets is very simple, generally under the project directory, including 2 directories, namely pages directory and utils directory, and 3 application files, app.js, app.json, app.wxss. Each display page of the applet is stored under the pages directory, and each page has a directory, which generally contains 2-4 files, namely .js, .wxml, .wxss, and .json. The pages directory stores the constituent files of the two pages, index and logs. Each page is a directory, and the directory name is the unique page name.The main part of a small program consists of three files: app.js, app.json, and app.wxss, which must be placed in the root directory of the project, and the names of the three files are fixed and cannot be modified at will. The app.js file defines the script code of the applet, declares the global variables of the applet, monitors and processes the lifecycle functions. This file will be executed first, and can do some unified processing on the entire program; the app.json file configures the applet globally, setting the page access path, interface performance, network timeout, bottom tab, etc. of the current applet. It is used to configure the applet as a whole. The configuration in this file can be overwritten by the same *.json configuration on other pages; app.wxss is the public style sheet of the entire applet. It is the overall control of the style of the applet, and the style in this file will also be overwritten by the same style in *.wxss in other pages.An applet page consists of four files, namely .js, .wxml, .wxss, and .json. *.js files are used to write logic functions in applets; *.wxml is used to edit the structure of pages in applets, just like html in web pages; *.wxss is used to edit page styles, just like css Similarly, the syntax is also consistent with css; *.json is used to make some specific configurations on the page, such as modifying the page title, or using some functions encapsulated by WeChat. Note that these four files need to be placed in the same folder, and the file name must be consistent with the folder name. Take the index page as an example, index.wxml is used to describe the structure of the page, index.wxss is used to describe the style of the page, index.js is used to describe the logic and functions of the page, index.json It is used to do some specific configuration on the current page.SummarizeEveryone must be aware of how helpful WeChat Mini Programs are to traditional industries. In the era of mobile Internet, everyone's communication is basically based on WeChat, involving all aspects of daily life and work. Based on its accurate positioning and numerous advantages, the WeChat mini-program has grown in full swing, and is an essential way for businesses and individuals to develop in the mobile Internet era.The above are the details of WeChat Mini Program development technology introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have software and hardware function development needs for smart electronic products, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad, including MCU, voice IC, Bluetooth IC and modules, wifi modules. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth wifi development, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS solutions, the development of Bluetooth audio, the development of children's toys, and the development of electronic education products.

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