- Home >> Solution >> Appliances >> car appliances
Alcohol Tester Solution
According to the survey of relevant departments, about 60% of traffic accidents are caused by drunk driving, and drunk driving has become an "invisible killer" that threatens human life. Therefore, need to design a test instrument that can detect alcohol concentration rapidly. In addition, the alcohol tester can also be used in wine making, food processing and other occasions that need to detect alcohol concentration. Therefore, the alcohol concentration tester has a broad application space.
In this study, the human-machine principle is used in the design of the intelligent alcohol tester, combined with the anatomical characteristics of the hand, as well as scientific knowledge such as standing posture and sitting posture physiology, so as to coordinate the human, machine and environmental systems to create safe and comfortable driving for users. environment. This study starts from the shape, layout and materials of handles and connection structures, and analyzes the problems existing in existing products.
1. The structure and function of the alcohol tester
According to the man-machine structure analysis, through the preliminary conception of the smart alcohol tester and multiple revisions to the design plan, the design plan of the smart alcohol tester is finally determined. Structurally, the smart alcohol tester consists of a display screen, a switch button, a blowpipe and a handle 4 parts. This smart alcohol tester uses a wrapped back cover, which is convenient for users to disassemble and replace the battery; and considering the feeling of the user's hand, the original bulky alcohol tester is about 140 mm in height and 65 mm in width, almost occupying the entire size of the hand. It is not easy to hold; the size of the portable alcohol tester is about 73 mm in height and 39 mm in width. The larger the value, the smaller the compressive stress, and the handle with a round section or a near-round section is better. If the diameter of the handle is too large, the grip strength will be reduced, and if the diameter is too small, it will cause fatigue. The appropriate value is 30 mm or 40 mm. Therefore, the size and shape of this alcohol tester is based on its concentrated value. The designed height (not including the height of the blowpipe) is 95 mm and the width is 40 mm, which is conducive to maintaining the maximum grip force during operation, and it is easy and convenient to operate. Save space in the car.
Natural materials are arranged and combined in space to form a product design that conforms to the regularity and beauty of form. The handle is designed with rounded corners and beveled corners, which increases the comfort of users and reduces hand fatigue, so that the product language and function expression are clear; the air outlet and sound port are designed with simple and beautiful round holes, Make the whole product look more refined. The button echoes the air outlet and the sound port, all of which are circular, and are consistent with the color of the outer eaves and the back cover.
People have a direct physiological reaction to color, and it often starts with association. When using color, the main color should be selected according to the functional characteristics of the product. Therefore, in terms of color selection, the product as a whole adopts white and green color matching; white represents purity, and green represents freshness and nature. When the user uses this product, there is a fresh and clear feeling. The color matching is in stark contrast to the gray feeling of being drunk. The material is ABS engineering plastic, that is, PC+ABS, which not only has the dimensional stability and impact resistance of PC, but also takes into account the excellent processing performance of ABS. The use of this engineering plastic in thin-walled and complex-shaped products can ensure excellent product quality. performance. Therefore, in the design of this alcohol tester, the shell material is selected as ABS engineering plastic, which is processed by injection molding process.
In terms of function, this smart alcohol tester can not only display real-time data on the display screen in a timely manner, but also connect to a smartphone through Bluetooth to realize data transfer and remind users in time.
2. Design scheme of alcohol detector
The smart alcohol tester adopts a highly sensitive and compact alcohol sensor, which is convenient for measurement and reliable results; the processor uses a cost-effective MCU with low power consumption and strong functions, and is capable of controlling modules such as alcohol detection and real-time communication work, and laid a good foundation for future expansion of applications; mobile phone communication uses a widely used, low-power Bluetooth module, which can communicate with designated mobile phones within 10m, and transmit test data to the APP client in real time for analysis and testing .
In addition, after the tester is connected with a smart phone, it is convenient for users to detect the alcohol concentration in the body through the mobile phone anytime, anywhere, to judge whether the user can drive safely and avoid drunk driving; , to analyze the user's alcohol decomposition ability, and figure out how long it will take to drive safely. The APP client can display the location information of the user through the positioning of the mobile phone, and provide third-party services of Didi Chuxing.
3. The use method and result analysis of the alcohol tester
In order to test whether the designed alcohol tester is comfortable, this study adopts the ergonomics research method to study the operating comfort of the intelligent alcohol tester through the pressure distribution test on the hand and the subjective evaluation method. In this study, 20 randomly selected users were tested, and the analysis was carried out from the aspects of the holding method, operation mode and aesthetics of the breathalyzer appearance.
The process of the alcohol test is roughly divided into four processes: "pick up one by one sitting/standing holding one by one alcohol test one by one place". Among them, the gesture of holding this stage is the most important and the most complicated. The interactive actions generated by the holding posture of the hand basically run through every use link of the entire handheld product.
In the holding state, the hand posture is basically in a static state, and the range of changes in the movement is small. The main interactive behavior occurs in the movement and posture of the hand. When the relationship between the size of the product and the hand is relatively appropriate, basically there will be no major problems in holding it. The holding state of the hand posture is also directly related to the relationship between the product and the human hand model. However, the final effect will be the human-computer interaction in the process of using the product. Therefore, the goal of the author's calculation at this stage includes the positioning of the product in the hands of the person and the state of the hand at that time, so as to facilitate the operation of the product. The analysis provides the premise and basis. In addition, this study can also provide support for describing the grip state at the perceptual level through the user's feeling of grip.
One-handed grasping is completely effortless. The two regions with strong pressure on the hand become the main pressure-bearing regions. The fingers and thumb also bear part of the pressure as auxiliary parts. In order to avoid it, the pressure contact between the field strength meter and the palm of the hand was reduced as much as possible.
According to the test results, it is found that the intelligent alcohol tester designed by this research institute conforms to the principles of ergonomics, has a novel design, bright colors, and convenient operation methods, which can better relieve hand fatigue and increase the comfort of the product.
4. APP Design of Alcohol Tester
The reason why the alcohol tester is smart is that it uses the Internet of Things technology to closely link equipment and equipment, equipment and people, and has the convenience and controllability that traditional single products do not have.
1. Mobile application function and information architecture design
APP is an application that connects mobile phones and devices to meet remote control. In addition to satisfying the information display function and basic control function of the fuselage interface, its biggest function is to realize remote control and data collection. The data collected by the machine will be uploaded to the APP client through it. Through it, users can manage the alcohol tester and have a comprehensive understanding of the status of the alcohol test data.
This study judges whether the user can drive safely according to the alcohol content, avoids traffic violations caused by drinking and driving motor vehicles, and causes safety accidents, and protects the personal and property safety of users; through the recorded data of multiple tests, and According to the user's physical condition, analyze the user's decomposition ability, so as to estimate the time required for safe driving.
When the user presses the switch button, the alcohol tester will have an alarm sound of "beep beep" for 2 s, reminding the user that the test is ready and the test can be started. After the user test is completed, the test result will be displayed on the screen. When the value of the test result Within 20ml-100ml, there will be a "beep beep" 2 s prompt; users are advised not to start driving a motor vehicle; when the tested alcohol concentration reaches the drunk driving standard or above, the alcohol tester will have a "beep beep" The 2 s rapid alarm prompt reminds the drinking user not to start the car.
2. Mobile APP interface design
The interface exists in the information exchange between people and things, and it can even be said that all areas where there is information communication between people and things belong to the interface, and its connotation elements are extremely extensive. The design of the interactive interface can arouse the psychological and physiological reactions of the users when using it. How to capture the user's attention and infect the users requires the designer to reasonably coordinate the layout and design of the entire interface system. The design of the user interface involves all the feedback and interaction details generated during the operation of the user and the machine. Therefore, interaction design is not just a matter of aesthetic choice, but based on the understanding of users and cognitive principles.
Due to the continuous acceleration of multimedia and information unification in the new era, the human interaction interface of mobile terminals has become more reflective of user experience and user emotional factors. Studies have shown that the intuitive feeling brought by color will make users have visual associations, and it is the most important way of communication between various factors in visual art. Differences in lightness, hue, and purity of colors will cause different psychological illusions to people. In terms of color selection, the author follows the principle of consistency, starts from product positioning, takes product attributes and conveyed ideas as the core, integrates fashion trends, and looks for the color that best conveys product ideas.
The current design style trend of mobile applications can be roughly divided into two categories: flat style and skeuomorphic style. The flat background style is cool and high-tech, which is suitable for this kind of smart products.
5. Summary of Alcohol Tester Scheme
The passive alcohol test is designed as an active test and an active reminder to the user, which improves the safety of traffic driving. Through ergonomic analysis, the product is optimized and designed, fully considering users, so that the humanized design truly reflects respect and concern for people, which is a manifestation of humanistic spirit and a perfect and harmonious combination of people and products. The improved design of the intelligent alcohol tester has been launched to solve many problems such as the large volume of the current alcohol tester and the inconvenient test identification. Combining the anatomical characteristics of the hand and the static and dynamic dimensions of the standing posture, the alcohol tester has been improved and perfected, which can be more suitable for the comfort of the human hand. While realizing effective monitoring of drinking and driving, it fully considers the interactive mode of the product, starting from the handle , the connection structure and the material and color of each component provide new ideas for improving the comfort of this type of product, and open up the intelligent era of alcohol testers. The market demand is extensive and the value of promotion and application is high, which can effectively reduce the Drunken driving phenomenon, improve traffic safety travel, and allow people's travel to prevent problems before they happen.
The above are the details of the alcohol detector solution introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have the electronic function development needs of the alcohol tester, you can rest assured to entrust it to us. We have rich experience in custom development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate the PCBA quotation. We are a number of chip agents at home and abroad, including MCU, voice IC, Bluetooth IC and modules, wifi modules. Our development capabilities cover PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development and other hardware and software design. It can also undertake the research and development of smart electronic products, household appliances scheme design, beauty equipment development, Internet of Things application development, smart home scheme design, TWS scheme development, Bluetooth audio development, children's toy scheme development, and electronic education product development.
- TOP