Industry-Electronic product solution company-Electronic and electrical product development-Bluetooth design-S

Industry

07-05

2021

Do all microcontrollers have the same number of programming times?

The microcontroller is actually a device equipped with a program. After the developer completes the program, he or she can burn the program. The microcontroller can execute the instructions written by the developer, but a dedicated burning tool must be used for program burning. People who operate microcontroller development boards should know that after programming is completed, the program needs to be burned multiple times during the adjustment and testing process. Even so, the microcontroller can continue to burn. Here comes the question, how many times can the MCU be burned? Do all microcontrollers have the same number of programming times?In fact, different microcontrollers have different programming times, and the determining factor is their internal program memory ROM. Therefore, some can be burned 1 million times, some can only be burned once, and some cannot even burn microcontroller pictures.A ROM that can be programmed multiple timesThe ROM of the microcontroller is EEPROM or FLASH type, which can be erased multiple times. The flash of the two can be burned 1 million times. It can be said that it fully meets our usage needs. Most of the microcontrollers used in the market now are of this ROM and FLASH type. The burning speed is faster.Can only burn ROM onceThis kind of microcontroller is a PROM type. There are only two default types in its memory, all zero or all one. It can only be used for one-time programming. After the program burning is completed, the fuse melts and no further programming can be done. This type of microcontroller has a relatively cheap unit price, can be purchased in large quantities, and is very popular in China.Unburnable ROMThis microcontroller cannot burn the mask ROM of the program. It has its own program shipped from the factory and cannot be deleted. The operator needs to provide corresponding procedures and copying instructions. The manufacturer directly writes the program based on the data. Its essence is the same as the one-time burning ROM. The program is only burned by the microcontroller manufacturer, and the price of this microcontroller is lower.
07-04

2021

Intelligent visual ear-picking endoscope ear-picking rod solution

Are you still blindly picking your ears? The emergence of the intelligent visual ear picking endoscope ear picking rod solution allows you to say goodbye to blind picking, and watch your ear picking clearly and safely. Ear picking is so easy and simple. The emergence of visual ear removal endoscopes not only solves the problem of ear removal, but can be used in almost any part you want to see, including the mouth, nose, throat, and teeth.The visual ear endoscope ear picker stick can not only monitor the situation in the ear canal in real time, but also has functions such as rotation, photography, and video recording. When you need to see a doctor for ear inflammation and pain, you can directly show your situation to the doctor. It can save a lot of trouble.The specific functions of Zuchuang Microelectronics will introduce to you:1. 6-axis high-definition and accurate ear picking, 360-degree viewing without blind spots, no shaking, and clear earwax and earwax.2. The ear scoop is made of PC+silica gel, so you no longer have to worry about damaging your ears by picking them out.3. 350mAh battery, supports 1.5 hours of fast charging, and can be used for about two months on a single charge.4. High-end Wifi chip, transmission Fengchi Dianqing (BYD chip)5. Non-sensory intelligent temperature control, automatic strong connection when turned on.6. Base accessories storage box for easy storage7. Magnetic charging base, plug in and charge8. High-sensitivity sensor, six LED lights, intelligent compensation algorithmShenzhen Zuchuang Microelectronics Co., Ltd. is an electronic and electrical solution development, design and chip agency company with 19 years of experience. It focuses on the development and design of intelligent visual ear-picking rod solutions, ear-picking endoscope solutions, ear-picking endoscope technology development, and visual pick-up. For the development and design of ear stick solutions, we can provide MCU, voice IC, Bluetooth IC and modules, and wifi modules. The 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.
07-03

2021

Under the background of AI big data, how can smart home make use of scene data?

If the process of human exploration of artificial intelligence is compared to the process of conquering the vast ocean, then computing power, algorithms and data represent ships, power and navigation charts respectively. Computing power determines the type of ship, such as whether it is a cruise ship, a ship, or an aircraft carrier; the algorithm determines the sailing speed of the ship, because it determines whether the ship uses steam, diesel, or nuclear power; the data is a nautical chart, the richer and more accurate it is The power of data can shorten the distance between us and our destination.In recent years, thanks to the rapid development of new technologies such as the Internet of Things, artificial intelligence, and 5G, smart homes have successively gone through the stages of "automation," single product intelligence, and "Internet of Things + home scenarios" in just a few years. "Three stages, entering the "intelligent" stage of the current "artificial intelligence + home scene", opening up the learning and exploration of human thinking and consciousness in smart homes.In the movie "Iron Man", Tony Stark's artificial intelligence butler, Jasvi, almost satisfies all the audience's fantasies about "smart home". However, when "it" really comes into reality, although it also facilitates our life to a certain extent, it is still far from the ideal "perfection".According to the survey of relevant practitioners, smart home technicians have not formed a good interactive relationship with the market. Although the products they develop are technologically advanced, they are poor in practicality, complicated in operation, and out of touch with market demand. The problem remains widespread. According to public data, among the products currently on the market, consumers’ lack of enthusiasm for consumption due to poor human-computer interaction experience accounts for 12.7%, and the reason for these phenomena is the lack of rich and accurate scene data. support.As mentioned at the beginning of this article, our exploration of artificial intelligence is a process of conquering the ocean. From the start of artificial intelligence in the middle of the last century to today's exploration of the deep integration of artificial intelligence and application scenarios, under the premise that "ships" and "power" have been greatly guaranteed, once there is a training data deviation or lack of data in the "navigation chart" Support, then we will only run counter to our destination, and the distance will be farther.1. AI data is to smart homes what nautical charts are to navigation.Iron Man's friend, Jasvi, may be regarded as the highest goal of applying artificial intelligence to smart homes. Not only can it perform classic and funny scenes with Stark in daily life, but it can also interact with Stark in daily life. Can carry out "human-machine collaboration" and work together in tacit understanding.All of these reflect the essence of artificial intelligence technology in the smart home field, an AI interactive revolution.This revolution is dominated by interactive technologies such as voice interaction and visual interaction, and is supported by AI capabilities such as natural language processing and machine vision processing. At the same time, this also means that artificial intelligence’s demand for scene data almost fully covers voice, images, text, video and other fields.In the AI system, computing power, algorithms and data are the "troika" that drive artificial intelligence, and they respectively play the role of infrastructure capabilities, guidance methods and algorithm basis. Only by collecting and labeling precise data (voice, images, text, videos, etc.) and using it for iterative training of the algorithm can a complete set of artificial intelligence data solutions be output. Jia Yuhang defines the relationship between the three as "mutual restriction and mutual promotion."From this point of view, AI data applied in smart home scenarios is naturally the "source of living water" that feeds back solutions. If AI technology is to achieve the highest goal in smart home applications, AI data cannot be ignored and must contain richness. and accuracy, which also involves the issues of data collection and data labeling of artificial intelligence.In fact, artificial intelligence players have a relatively consistent attitude towards AI data, including foreign giants such as Google, Microsoft, and Amazon, as well as domestic giants such as Baidu and Alibaba, all of which have made achievements in AI data. In addition, Cloud Measurement Data, as a leader in domestic data collection and annotation, has been called the "Top Five in Artificial Intelligence" by the media and SenseTime, Megvii, Tuya, and Horizon. This is also because the industry is well aware of the importance of high-quality data for AI applications, so it "combines" companies that have made achievements in different fields of algorithms, computing power, and data. In other words, this is also the industry's reliance on the development of artificial intelligence. way of expression.From the perspective of speech recognition, for example, a cat elf recently announced that it has launched Sichuan dialect. Users can use Sichuan dialect to talk to it when using daily life and entertainment functions such as alarm clock, weather, guess what, etc.But in fact, in addition to dialect, factors such as gender, age, speaker's speaking speed, speaking background, noise, emotion, language type, etc. are all key to forming a rich and real interaction sample. This requires handing over some specific data to artificial intelligence to forcibly summarize a specific rule. This rule has certain applicability, allowing real users to achieve a real application experience during use.Or from the perspective of semantic recognition, when we need to turn on the air conditioner, by speaking a command, the machine may be able to understand and turn on the air conditioner. But when it comes to deep logical meanings, can machines “understand” them? Especially as the corresponding functions become more and more abundant, more and more subcategories will be split, such as temperature adjustment after the air conditioner is turned on, wind speed adjustment and other different attributes.Therefore, if smart homes want to be truly implemented, they must rely on rich, high-quality AI data to feed back AI algorithms to help smart home industry companies improve user experience on the road to exploring the potential of AI, while achieving their own goals. cost reduction and efficiency improvement. Just like a sailing ship must require a nautical chart with complete and accurate data to reach its destination.2. AI big data helps the industry navigate to the other side of successAt present, AI big data relies on the two major strengths of scenario laboratories and data annotation bases to provide high-quality scenario-based AI data services for smart driving, smart cities, smart finance and other fields in addition to the smart home field, and fully supports text , voice, image, video and other types of data processing.Facing the smart home industry, the core capabilities of AI data collection include wake-up word collection, control word collection, designated corpus collection, face collection, emotion type collection, Chinese and English, domestic dialects, Southeast Asian, European, African minor languages and other collection types , support scene data collection of smart speakers, smart TVs, smart sweeping robots, etc.; the core capabilities of data labeling include character voice transcription, behavioral intentions, voiceprint recognition, domain recognition, sentence generalization, semantic segmentation and other labeling types, support smart speakers, Scene data labeling of smart TVs, smart sweeping robots, etc.Jia Yuhang believes that the development trend of AI data in the field of smart home is developing in three directions: multimodal, emotional, and subdivided. For this, AI big data has also established its own service system to continuously meet the needs of enterprises in the field of smart home. Demand for AI data services.The first is specialization, customization and sceneization. With the development of AI, AI data has experienced a relatively chaotic development period, and has derived different business forms. For example, in the "prehistoric stage" of data capture through crawler technology, or in the early days of artificial intelligence technology, general data sets are also "unique". Now, AI data provides services for enterprises that are about to land in the current AI industry by providing scenario-based data collection and data labeling services.The scene laboratory and the data labeling base are the two "magic weapons" of AI data: the first is the data scene laboratory, in order to deal with all the scenes that may appear in the smart home scene, such as environmental conditions such as light, noise, background, and for Different factors such as race, language, age, gender, etc., AI data can build and simulate "real scenes" for different needs, and then provide data collection for customers in the smart home field to restore the scene; secondly, the data labeling base, through the Artificial intelligence trainers conduct professional training, and cooperate with their own data platform to carry out continuous iterations to ensure the accurate output of the entire data, and can provide professional customization for customers in security, home, driving, finance, Internet, retail, education and other fields services.Followed by high efficiency, high precision, high quality. There is such a saying in the field of artificial intelligence: garbage in, garbage out. In other words, the quality of the data can be directly reflected in the final result through the "hardening" of the algorithm. This is actually a test of an AI data service provider's ability to control data accuracy, data process control, and data quality screening. Only high-quality AI data can accelerate the application of artificial intelligence to the greatest extent, help enterprises reduce costs and increase efficiency, and at the same time realize that good money in the market drives out bad money.The artificial intelligence data service team of AI data has formed a complete operating system including task assignment, demand analysis, demand confirmation, data cleaning, bid confirmation, progress control, quality assurance and other processes. For example, cloud AI data sets the underlying rules for voice, text, picture, video and other categories, and has multiple review mechanisms, coupled with professional labeling logic, thinking and thinking ability, and knowledge in related fields, so as to efficiently output into one A set of high-quality and accurate smart home data solutions.Finally, the most important data privacy security. AI data has a deep understanding of this, and enterprise data security is one of the important elements for an enterprise to form a core competitive barrier.3. Smart home bursts out beautiful sparksAsia's smart home market will grow to $26 billion by 2022 and $115 billion by 2030, accounting for more than 30 percent of the global market, according to a forecast by consulting firm AT Kearney. China will be key to Asia's growth. As far as the current stage of smart home is concerned, the intelligent stage of "artificial intelligence + home scene" will show continuous and long-term development potential. With the help of AI data, the smart home industry is bound to usher in strong growth and spark brilliant sparks.I hope that the existing fields can go deeper and deeper, and at the same time expand to more fields to serve more artificial intelligence companies. I also hope that the products and projects of more artificial intelligence companies can be implemented faster, so that people can use it in their daily lives. Use; really let users feel understanding and warmth. If this vision is achieved, we who provide data annotation and data collection services will be satisfied.
07-02

2021

Voice IC capacity calculation and voice IC sound capacity introduction

A voice chip is a chip related to voice. Voice is the stored electronic sound. Chip application occasions and industries are different, and can be divided into subdivisions. Specifically, Zuchuang Microelectronics will introduce to you:Calculation of IC capacity occupied by voiceThe IC space occupied by the sound is mainly determined by the sound length, sampling, and compression rate.4BIT IC adopts ADPCM compression method, capacity = sampling frequency * seconds * compression bit, generally we use 4bit compression. For example: 6K sampling 4bit compression: the space occupied by 1 second is: 6K*1* 4bit=24K(Bit), so I won’t introduce it in detail.DSP IC generally uses Audio32 compression. This is very space-saving. Capacity = sampling frequency * seconds * compression / 16K, for example: 16K sampling 16K compression: 1S capacity = 16K * 1 * 16K/16K = 16K (Bit), but this compression will affect the sound quality, so it can't be done very well sound quality.Introduction to voice IC sound capacityThe number of seconds when 6K sampling is used is marked in most names of voice ICs. For example: SNC27200, SNC36150, etc.; the red part represents the number of seconds when the IC can store the lowest compression of 6K sound. However, the sound quality of 6k sampled sound will not be very good, so 6K is rarely used for playback. Generally, we use 8K or higher. The actual length of sound that can be stored is: 6*IC seconds/actually used samples. So if 8K sampling is used, SNC27060 can hold 6*60/8=45S.Generally, the length of the customer’s voice is first known: IC seconds required = original sound seconds * actual sampling / 6K, for example, if the customer provides a 10S voice, if we sample at 8K, IC seconds are required = 10*8/6= 13.3s, then we have to choose an IC higher than 13.3s, namely SNC26016If the customer does not require the sound quality, the default 12K sample evaluation is generally used. If the evaluated matrix is not suitable, it can be reduced appropriately. If there are many functions during evaluation, you need to reserve a few seconds for the software to use.The voice lengths mentioned above are all WAV voices. If MID is more professional, it takes up different space according to the different timbres. It is best for customers to send specific voice requirements to us for detailed evaluation.When there is a lot of sound (generally more than 250S), you can choose voice IC+SPI Flash. When there are so many sounds that ordinary voice IC SPI can't fit in, you can use DSP + SPI. If you still can't fit in, DSP+NandFlashSNC81K, SNC16K (LCD) SPI storage length calculation: (Rom*1024)/(sampling*4)SNC7648 and other DSPs: ((Rom*1024)*16)/(16*16)Note: The SPI unit is Bit, which is small b, 1B=8b. Here ROM is the specification of SPI, 8M SPI is Rom=8 in the formula;Group Innovation launches voice chip series1. SNC27/27P series, SNC32/32P series, SNC36 four-channel, SNC86 series 8-channel, SNC7648, 7232 DSP series.2. Some Alpha chips with high cost performance (that is to say, the corresponding Youhua chips can be considered if the price of Sonix cannot be accepted by the market), especially Alpha's AM9AC, AM4EG, AM32A/B series, etc.3. Some specific platform-based solutions of the company, such as: voice recognition, voice control, 2.4G remote control sounding toys, local voice recognition, etc. (2019 will be sold as standard PCBA modules).Shenzhen Zuchuang Microelectronics Co., Ltd. has 19 years of electronic and electrical program development and design and chip agency company, mainly engaged in the design and development of software and hardware for educational electronic products, small household appliances, educational toys, smart home and other consumer electronic products. MCU, voice IC, Bluetooth IC and modules, and wifi modules can be provided. The development capabilities cover software and hardware design such as PCB design, microcontroller development, software customization development, APP customization development, and WeChat public account development.
07-01

2021

How does an ammeter measure current? What should be paid attention to when measuring current?

Everyone often uses an ammeter to measure the current of the wire when repairing electrical circuits, so how does the ammeter measure the current? Next, let’s give a brief introduction to Zuchuang Technology.How does an ammeter measure current?1. Different types of ammeters have different measurement methods. For example, we connect the pointer ammeter to the line in series, turn on the switch, and read the value pointed to by the pointer of the ammeter. When using a digital clamp ammeter for measurement, we adjust the ammeter's range to the maximum, and the ammeter's pliers clamp the running wire to be measured in the clamp core, and read the ammeter's value.2. We can also measure the current with a multimeter. We turn the multimeter to the current gear, and then select the measurement range according to the magnitude of the measured current. Next, the plug of the red pen is inserted into the com hole, the plug of the black pen is inserted into the current hole, and the tip of the electric pen is placed on the positive and negative ends of the measured object. Just read the multimeter value.What should be paid attention to when measuring current?1. When measuring current, you must first make sure you are measuring AC or DC, and then turn the multimeter to the corresponding gear. If the gear is wrongly selected, the current cannot be measured. When measuring current, we also need to pay attention to the range of the current. Many times, we do not know the current size of the line under test. We can first adjust the range to the maximum value, and then slowly reduce the range. This can avoid the situation that the measuring range is too small, the measured current is large, and the ammeter is burned out.2. When measuring current, we should connect an ammeter in series with the line. If we connect its ammeter wrongly, in parallel, the ammeter will burn out. Electric current flows from the positive terminal to the negative terminal. When measuring current, do not reverse the positive and negative terminals of the object being measured. Otherwise, the pointer ammeter will not only fail to measure the value correctly, but will also damage the ammeter. The digital ammeter has little impact, and a negative number will appear on the front end of the value.
05-13

2021

Core shortage, price increase! Three major chip manufacturers issued price increase letters on the s

Recently, the three major chip companies issued a price increase letter on the same day: the price increase has increased by as much as 30%! Depu Microelectronics, Shanghai Xinlong Semiconductor, and Fuhong Chuangxin issued product price adjustment notices at the same time, announcing that from May 6th, all products will increase in price, and some products will increase by as much as 30%.1. Depu Microelectronics issued a price increase letter, and the price increase will start on May 6Shenzhen Depu Microelectronics Co., Ltd. announced that it will make corresponding price adjustments for lighting series product models from May 6, and undelivered orders will be shipped at the latest prices. According to the official website, Shenzhen Depu Microelectronics Co., Ltd. was established in 2006 and is mainly engaged in integrated circuit design, packaging testing and sales. The enterprise has the ability to realize an annual output value of 500 million yuan and an annual shipment of 3 billion integrated circuits. Products cover AC-DC converters, DC-DC converters, PWM controllers, LED lighting drivers, LED panel drivers, lithium battery protection ICs, MOSFETs, EEPROOMs, voice ICs, logic circuits, operational amplifiers, linear regulators, Microcontroller, etc.2. Xinlong Semiconductor (XLSEMI) announced a price increaseToday, Shanghai Xinlong Semiconductor Technology Co., Ltd. (hereinafter referred to as "Xinlong Semiconductor") issued a product price adjustment notice stating that due to the continuous increase in the cost of upstream raw materials for products, tight production capacity, and extended production cycles, our company's product costs are high. sharp rise. In order to better serve customers, ensure the continuous supply of products, and relieve the pressure brought about by multiple increases in procurement costs, after careful evaluation and consideration, according to the actual situation of upstream suppliers' price increases, in line with the principle of common development and win-win cooperation, Decided to adjust product prices across the board. The specific execution method is as follows:1. All orders and new orders that have previously taken effect but have not yet completed delivery will be subject to the adjusted new price;2. Effective from May 6, 2021.According to the data, Shanghai Xinlong Semiconductor Technology Co., Ltd. is a design company specializing in the development of power management analog integrated circuits. Xinlong Semiconductor has many years of technical accumulation and practical experience in the field of high-voltage, high-efficiency, and high-power power management integrated circuits. It is worth mentioning that Xinlong Semiconductor has started the journey of A-share listing.3. Fuhong Chuangxin comprehensively increases chip pricesA few days ago, Fuhong Chuangxin issued a notice of product price increase, saying that due to well-known reasons, the supply and demand of the global semiconductor industry are out of balance, the production cycle is continuously extended, and the price of raw materials is rising, resulting in a substantial increase in the company's manufacturing costs. In order for the company to operate healthily and continue to provide more stable and reliable chip products to all cooperative customers, the company will increase the prices of all chip device products from May 6th.Among them, the price of power chip series has increased by 10%~30%. This series of products include DC-DC Buck/Boost, LDO voltage regulator IC, battery management (charging management, battery protection, power detection), LED backlight driver, LED lighting Driver, USB interface protection, Hall switch IC, voltage adjustment (detection, reference source, reset), motor driver IC, audio power amplifier.Signal chain chips include OPA operational amplifiers, signal interface types, and analog signal switch ICs. The price of this series will increase by 10%~20%.Storage device ICs include SPI Flash and EEPROM, and the price of this series has increased by 30%.In addition, the microcontroller MCU includes ARM Cortex MO/M3/M4, and this series adopts a dynamic quotation mechanism.Fuhong Chuangxin said that all prices are subject to the official quotation of the company's business department. After the price adjustment, the company will actively follow up the market situation. If there is any change in the price, the company will promptly feed back to all cooperative customers.Among them, the price of power chip series has increased by 10%~30%. This series of products include DC-DC Buck/Boost, LDO voltage regulator IC, battery management (charging management, battery protection, power detection), LED backlight driver, LED lighting Driver, USB interface protection, Hall switch IC, voltage adjustment (detection, reference source, reset), motor driver IC, audio power amplifier.The electronic supply chain is a whole, from raw materials, design, manufacturing, packaging, testing to chips, modules, terminal factories and consumers all over the world, all linked together. In the past, any decrease or increase in demand in one link would be due to The "bullwhip effect" affects the entire industry chain.However, news recently came from Huaqiangbei that a small number of chips have reached a critical point due to rising prices and shortages. It means buying them to make products is a loss, and the more you make them, the more you lose. Some of them have simply been discontinued.Some distribution agents in Huaqiang North saw this sign and began to rush to ship goods. I don't know if it's a smoke bomb.
04-15

2021

ZTRON Dictionary Pen—"Smart and Clever" Dictionary Pen

Will dictionary pens eventually replace dictionaries? The answer is yes. Recently, the Group Dictionary Pen 1.0 produced by Group Dictionary Pen Project has officially launched. It is a new product that has been comprehensively upgraded from the inside to the outside, and can be more professional and efficient in "word search".Lightweight and flexible dictionary penThe outer packaging of the Zuchuang Dictionary Pen 1.0 is relatively simple and bright, and the product itself continues a similar style. Its shell does not have too many complicated lines, it is very clean and elegant, and a lot of effort has been put into the use of materials. The back shell of this product is made of metal and is supplemented by sandblasting surface technology. It feels delicate and smooth and will not be stained with too many fingerprints.The front of the product is covered by a large piece of glass, and the power button on the side is white. The combination of the three instantly enhances the quality of the product.As for the size, it is about the same as a traditional fountain pen, with a length of 14 cm and a width of about 3 cm. It can be easily put into a pocket, not to mention a gentleman's schoolbag or shoulder bag.This product is also very careful in terms of product details. In addition to the glass panel and metal shell mentioned above, there is also a main function button on the front. The workmanship details are quite good and it is almost integrated with the back panel.The Type-C interface is used for data transmission/charging, so most mobile phone charging cables and data cables on the market can be adapted for use, and the compatibility is very high.Ultra-high efficiency and practicalityWhat features are the most important for a dictionary pen? We think nothing is more important than ease of use, efficiency and, of course, accuracy of translation. If these three dimensions are not done well, then the reliability of the dictionary pen as a tool will be out of the question. Let's first conduct a word search test to see how it will perform in our own work field. The pen tip of NetEase Youdao Dictionary Pen 2.0 has two small mechanisms. When the mechanism is triggered, the pen tip will emit light to remind the user that it is scanning, and then scan the word horizontally.In terms of translation speed, its performance can be described as arrogant, basically it can translate a word in 1 second. We tried several words to distinguish between long and short words. When used correctly, the recognition speed is very fast and the accuracy is extremely high.Whether it is a word or a long sentence, the machine can quickly produce the correct pronunciation under the premise of accurate recognition, and the pronunciation of the words is correct and very standard. This function is very important. In the process of learning English, "listening, listening, reading and writing" must have a complete pronunciation of words and sentences that is pure and close to the pronunciation of real people. It can help users correct their pronunciation and avoid "Chinese English". As for pronunciation, you can also choose British pronunciation and American pronunciation to meet the needs of different learning environments.Scientifically improve learning efficiency1. Excellent design. Zuchuang Dictionary Pen 1.0 is definitely one of the best-quality dictionary pen products on the market. With the combination of various materials, the appearance of the product itself has jumped out of the "educational product" circle. Furthermore, it performs well in many aspects such as size and weight, so it is not a problem to carry it with you.2. Excellent strength. The functional performance of Zuchuang Microelectronics 1.0 is very good, and the job is done very well. The translation of words and sentences basically meets the requirements of "fast and accurate", and the addition of offline functions improves the practicality of the product itself.3. Be creative. In our stereotype, educational products are “old-fashioned” and do not have much scientific and technological content. However, our dictionary pen has incorporated AI voice assistant, neural network translation technology and other fashionable elements, and the interface has also changed to a higher specification and more mainstream Type-C interface, which can be said to be full of "Internet flavor".Therefore, traditional dictionaries are outdated. They have no other functions except word search. For example, the voice assistant function is a powerful tool to improve learning efficiency, but traditional dictionary pen products do not have it. Furthermore, dictionary pen products using traditional SMT translation technology are not as accurate as expected.
03-26

2021

Created a smart scanning pen to start a happy English learning journey for children

A good helper for children to learn English - Group Innovation Intelligent Scanning Pen. This intelligent scanning pen solution product can bring a more efficient and convenient learning method to parents and students. The Group's intelligent scanning pen adopts iFlytek's OCR text recognition technology, which enables fast recognition and high accuracy. The translation speed is 15 times that of consulting a paper dictionary. Just swipe it like a highlighter, whether it is a word or a phrase. , long sentences across lines, and even Chinese words can be scanned instantly.After tracing is completed, you can also add unfamiliar words to your favorites with one click to facilitate future review and consolidation. Whether it is translation efficiency or recording functions, compared with traditional paper dictionaries, they are overwhelming.Synchronize the teaching material content and scan and test anytime.Shulang's smart reading pen contains mainstream English textbooks. Just use it in conjunction with the textbooks to scan and read the textbook content simultaneously. It has all the original translations and the pronunciation of real people is pure and natural. It is very helpful for spelling words and practicing listening.After scanning is completed, you can also use the oral assessment function and the AI system to intelligently score, helping children say goodbye to "dumb English".Available offline, stay focused on learning‍‍Today's students usually use mobile phones or electronic dictionaries to look up words they don't know. Although it is more convenient than paper dictionaries, ordinary electronic products can easily cause distraction, and they often open other entertainment software halfway through the search.As a pure English learning tool, Zuchuang Intelligent Reading Pen has pure functions and simple operation. There is no interference from other information during learning. It is beneficial to immerse students in their learning thoughts, maintain their concentration in learning, and improve their learning efficiency.At the same time, the product also supports offline translation, which can be used in the library, school, or study room at will. Even if there is no network, it will not affect the learning progress at all. Empowered by science and technology, innovative in education, Chuang Chuang’s intelligent scanning pen has changed the traditional way of learning English, making English learning more efficient, focused and professional. English-Chinese translation, simultaneous translation, oral assessment...a variety of interesting and practical functions will definitely help children develop the good habit of learning English independently.Shenzhen Zuchuang Microelectronics Co., Ltd. has 20 years of experience in electronic and electrical solution development, design and chip agency. It is the earliest company in China to develop reading pen solutions. It can provide scanning dictionary pen solution development, Bluetooth Wifi reading pen OID solution development, and smart scanning. Reading pen solution development, scanning dictionary pen solution, scanning pen solution development, visual endoscopic ear picking rod solution development.
02-20

2021

Picture book story machine, five popular early education story machines recommended for you

The picture book story machine is one of the most popular products in the current AI products. Because it is both educational and interactive, it is very popular in the early education market. Various early education robots have been born. We interviewed many parents to understand the current situation. The most popular early education robot.1. Mi Rabbit who can tell stories"Mi Bunny, Mi Bunny, sing a nursery rhyme"Wearing a blue cap, Mitu’s cute appearance has attracted many children’s love. Because of its low price, many parents regard it as an entry-level product. As an intelligent story robot, children can listen to fairy tales on Mitu Stories, enlightenment English, Chinese classics and joyful children's songs. Voice encyclopedia Q&A and WeChat chat with remote parents are also two major features of its interactivity. In addition to story machines and dialogue machines, Mi Rabbit is also a soothing artifact. The blue plush cap is comfortable to the touch, and with 41 built-in white noises, it is more helpful for infants and young children to sleep. Secondly, what’s interesting is that Mi Rabbit can also be paired with hugging clothes. By changing Mi Rabbit’s clothes, children can also exercise their fine finger movements.2. A robot for children to read picture books - Luka, the animal spiritAs long as Luca's big eyes scan your picture book, he can read it. Not only Chinese books, but also English picture books are not a problem for Luca. Many parents said that Luca pulled their children from screen reading back to reading. Luca's voice is very nice, and he can also extend some words that are not in the picture books. Reading the picture books is very impressive. For parents whose English is not good, Luca is a good helper. With standard English pronunciation, as long as the children open the book, they can start English enlightenment with Luca. In addition, Luca's "memory" is also super strong. As long as the picture books he has read will be stored, the children can listen to them anytime they want.3. A robot that leads children to learn—ZIB Smart Companion RobotThe early education story machine solution developed by Zuchuang Microelectronics has a unique molar stick embedded design on the top.Compared with the previous two models, the Smart Companion Robot is not only a story machine but also has the function of online education. In addition to small textbook synchronization, text reading, and English-Chinese translation, there are also free online educational resources such as mathematical calculations, geographical knowledge, historical stories, lexicon, and encyclopedias. The large-screen LED dot matrix lamp has a display-free design, which can prevent myopia, which is also an important reason why many parents choose it. The Smart Companion robot uses the same version of Apple's Siri for language interaction, which can recognize 90% of Chinese semantics. At the same time, the Smart Companion robot can also realize online learning in more than 20 languages. Its anti-fall material and food-grade silicone teething stick design are also very suitable for young children.4. A robot that can dance with children—Xiaoha voice education robotYou can video chat with your parents through the video screenIn terms of education, Xiaoha robot covers from preschool to high school counseling courses. Compared with some similar early education robots, the age range is wider. Xiaoha robot has prenatal education knowledge, teaches fetal songs, and can help expectant mothers carry out prenatal education. , nursery rhymes, music, interactive chat, and reading picture books are also favorites of children. After school age, teaching materials are explained simultaneously, and lectures by famous teachers can help children improve their interest in learning. In addition, Xiaoha is also a "follower" of children. If children are interested You can also dance with Xiao Ha.5. A robot that can meet the needs of the whole family—iFlytek Alpha EggGrandparents don’t know how to teach, so Alpha Egg is here to help.As Alpha Egg produced by iFlytek, its voice system is a highlight. Authentic American pronunciation, can complete the translation of words and long sentences within English level 6. In view of children's different pronunciation and thinking, Alpha Egg has optimized children's intelligent speech recognition and interaction system to allow children to interact and communicate without barriers. Secondly, Alpha Egg can also identify the location of sounds, and it can also identify the voices of each family member. In addition to meeting the educational needs of children of different ages, Alpha Egg can also meet the needs of the whole family, including family photo albums, film and television selections, video surveillance, and intelligent control of home appliances. It can be said to be an all-round robot.
01-01

2021

Introduction to the solution of intelligent electronic stylus for teaching

1. Technical introductionThe current teaching electronic pointer can realize laser pointer function, PPT page turning function and ink annotation function. Teachers or lecturers cannot write content on PPT remotely, nor can they convert the narration content into text information, save it and display it in real time.2. Technical contentA teaching electronic smart stylus, including a pen head and a pen holder, a rechargeable battery is installed inside the pen body, and a charging interface is arranged on the upper part of the pen body; a laser emitting head is installed on the pen head, and a central processing module is included inside the pen body, The central processing module is respectively connected to the inertial sensor module, wireless module, laser emission module, voice recognition module, function control module and power supply module; the upper part of the penholder is provided with a function switching device, and the middle part of the penholder has a laser emission switch and handwriting/erasing remove the switch.Further, the inertial sensing module includes an acceleration sensor and a gyroscope.Further, the speech recognition module includes a microphone and a speech database.Further, the function control module controls switching among the three modules of the laser emitting module, the inertial sensing module and the voice recognition module.Further, the power supply module includes a battery power supply module and a charging module.Further, the wireless module uses Wi-Fi, Bluetooth or Zigbee technology to transmit wireless protocol signals.Beneficial effects: the present invention does not require the pen tip to be in contact with any object, only needs the pen tip to draw handwriting in the air, and the writing action and trajectory of the writer can be simulated and displayed on the display or projector. In this way, the teacher or the lecturer can write the lecture notes or draw key marks at a position far away from the computer, which is very convenient for teaching. In addition, the present invention can also recognize the voice of the teacher or the lecturer and convert it into electronic text for editing, saving and displaying, which is also very beneficial for students to listen to the lecture again.
06-27

2020

China Mobile issued a clear signal of 2G frequency reduction and network withdrawal, and NB-IoT will

Recently, a document issued by the Ministry of Planning and Construction of China Mobile spread on the Internet and caused heated discussions. The focus mainly came from the plan to "decided to stop adding new 2G IoT users before the end of 2020."The resolution “Decided to stop adding new 2G IoT users before the end of 2020” officially conveys a very clear attitude towards 2G IoT at least at the official level. This attitude will drive the industry to make new decisions. Stopping the addition of 2G IoT will directly pave the way for the development of NB-IoT to a large extent. China Mobile's decision will undoubtedly bring greater breakthroughs to the accelerated development of the NB-IoT industry.Turn off the water inlet of the 2G IoT “pool”If the connection of the 2G Internet of Things is compared to a "pool", if the 2G network is to be withdrawn from the network, the water in the "pool" of the 2G connection must be drained. However, each pool has a water inlet and a water outlet. If you want to drain the water in the pool quickly, on the one hand, you need to reduce the speed of water inflow or even close the water inlet. On the other hand, you need to speed up the speed of water outlet.Generally speaking, the life cycle of IoT devices is relatively long. At present, the industry has not introduced corresponding measures for large-scale upgrading of existing 2G IoT terminals, so the "water out" of this pool is still very slow. In the past few years, the typical characteristic of the 2G Internet of Things pool is that the speed of "water entering" is faster than the speed of "water leaving". If the status quo is maintained, the water in this pool will never be drained.From this perspective, the purpose of stopping new 2G IoT connections is to close the water inlet of the 2G IoT pool. Only when the water inlet is turned off will the stock of the 2G IoT pool reach an inflection point and begin to decline. Therefore, it can be said that the decision to stop adding new 2G IoT connections is of great significance.How big is the water inlet and storage volume of the 2G pool?Turning off the water inlet of the 2G pool is of great significance, due to the "flow rate" of the water inlet of the 2G pool and the huge stock of the pool. We might as well examine it from public data.According to the data disclosed in the annual financial reports of the three major operators, the number of IoT connections of the three manufacturers has increased rapidly from a total of 343 million in 2017 to 1.23 billion in 2019. Judging from the comparison of the number of connections among the three companies, China Mobile is in an absolute leading position. By the end of 2019, its number of IoT connections had reached 884 million. Such a huge number of IoT connections is mainly carried by cellular networks such as 2G, 3G, 4G, and NB-IoT.三大运营商物联网用户数（单位：亿，来源：运营商财报，物联网智库）实际上，业界对于这十多亿物联网连接的结构更为感兴趣，到底哪一类蜂窝网络承载的连接数更多。虽然市场上还没有2G/3G/4G/NB-IoT不同制式物联网连接的数据，但是不同制式物联网连接基本上都对应着不同制式物联网模组，因此我们可以从蜂窝物联网模组的销售量来预判前后一段时间内不同制式物联网连接的结构。大部分物联网模组企业也没有披露其出货量的结构，然而物联网模组龙头企业移远通信在其财报中披露了不同制式物联网模组的出货量。以移远为例，根据其2019年年报公开数据，我们可以看出不同制式物联网模组销售量如下图所示：Number of Internet of Things users of the three major operators (unit: 100 million, source: operator financial reports, IoT think tank)Public data shows that Quectel's sales of 4G and NB-IoT modules have grown rapidly in 2019, but sales of 2G modules are still the highest, reaching 28.47 million units, but its growth rate has been very slow. Let's show it in scale as follows:It can be seen that among the four types of modules, 2G/3G/4G/NB-IoT, the number of 2G modules accounted for more than half in 2018, but this number dropped rapidly to 39% in 2019, and NB-IoT modules accounted for more than half. The proportion of the NB-IoT group increased rapidly from 13% to 29%, and the proportion of the other two types of standard modules changed slightly. It can be seen that the increase in the proportion of NB-IoT is basically due to the decrease in the proportion of 2G.At the beginning of 2017, the Internet of Things Think Tank conducted an in-depth survey of 10 domestic mainstream IoT module companies. The survey results found that 2G IoT module shipments accounted for nearly 80% in 2016. Since it is the result of a survey of 10 mainstream module companies, this number has a certain industry representativeness. During the survey, each module manufacturer stated that 2G modules accounted for a higher proportion before 2016.Proportion of IoT modules of different formats in 2016Although the only publicly available data is IoT think tank survey data and Quectel's shipment data, cross-verification can be performed from different angles, and the data is representative. From a glimpse of the leopard, we may draw some conclusions:Before 2020, most of the existing and newly added cellular IoT connections come from 2G IoT. As of 2019, the proportion of 2G modules is still much higher than that of other standards, not to mention that the proportion of 2G modules was even higher than before. Module shipments will be reflected in the number of IoT connections after a certain period of time, and the final ratio is roughly synchronized with the module ratio.It can be seen that the "water pool" of 2G Internet of Things has a very high stock, and the speed of entering the water is also very fast. Although the specific proportion of 2G IoT connections cannot be calculated, based on the previous data analysis, it is certain that more than half of the more than one billion IoT connections are 2G connections. Therefore, in order to speed up the migration of 2G network, it is very important to close the water inlet of 2G IoT from the source.Close the 2G water inlet, NB-IoT drainage is at the right timeAs can be seen from the previous article, by the end of 2019, the shipment volume of 2G modules is still higher than that of other standards. Large-scale shipments mean that there is still strong demand. With the inlet of 2G IoT closed, it is inevitable that 2G modules and new connections will fall off a cliff, but this demand cannot be without an entrance. Just like Dayu 4,000 years ago when he controlled the floods, he could not rely on blocking the raging floods, but only divert them. The closure of the entrance of the 2G IoT pool is the best time to direct these demands to the entrance of the pool of NB-IoT.Public data shows that as of February this year, the number of domestic NB-IoT connections has reached 100 million, more than 10 million in gas meters, water meters, fire protection, electric vehicle anti-theft and other fields, and there are also a large number of industries with multi-million applications. Many application fields used 2G connections before, but after NB-IoT showed its advantages, NB-IoT was used for new connections, which successfully achieved grooming.In Zhejiang Telecom’s announcement of the winning bid structure for NB-IoT module procurement this month, the lowest winning bid price for NB-IoT modules has entered the range of 12 yuan, which to a large extent has a cost advantage over 2G modules. Create conditions to divert 2G Internet of Things demand to the new entrance of NB-IoT.Since the beginning of this year, although Cat.1 has become a hot spot in the IoT circle and has been placed high hopes by many people to undertake 2G IoT connections, the author believes that after the new entrance to the 2G IoT is closed, the number of entrances that can be diverted to Cat.1 Relatively few, an important reason is the cost factor. According to the latest procurement data of Zhejiang Telecom, the lowest price of Cat.1 modules is around 35 yuan. After all, Cat.1 is based on LTE tailoring, which has high complexity, and there is still a long way to go to reduce the cost to the level of 2G modules. However, a large number of 2G Internet of Things users are very cost-sensitive, and the module cost of more than twice is enough to discourage users. Therefore, more 2G Internet of Things demand will be channeled to the water inlet of NB-IoT.In addition to meeting the needs of 2G at the cost and application levels, 2G infrastructure is also continuing to migrate to NB-IoT. It is very typical that the 2G spectrum is continuously compressed and much of it is used for NB-IoT network deployment after re-farming. This trend can be clearly seen from the refarming of spectrum by the three major operators:(1) China Telecom’s re-cultivation work: In June 2016, the Ministry of Industry and Information Technology issued the “Ministry of Industry and Information Technology No. 193 Document [2016] No. 193” regarding China Telecom’s use of the 800M and 2100M frequency bands for LTE networking. The 800MHz re-cultivation has a policy basis; In July 2016, China Telecom announced the launch of 800M network re-farming to reduce the number of CDMA carriers; after re-farming the 825-835MHz/870-880MHz frequency band, in May 2017, China Telecom announced the completion of the world's first full network coverage. NB-IoT network.(2) China Unicom’s re-farming work: In December 2016, the Ministry of Industry and Information Technology issued a document agreeing to China Unicom’s adjustment of some frequencies for LTE networking, allowing it to re-farm 900MHz and 1.8GHz across the country. These two frequency bands It is China Unicom's 2G frequency band; under the policy loosening, China Unicom has started the work of 2G frequency reduction and network withdrawal, and deployed 4G and NB-IoT networks in these two frequency bands.(3) China Mobile’s re-farming work: In April 2018, the Ministry of Industry and Information Technology issued an FDD license to China Mobile and allowed it to start re-farming the 900MHz and 1800MHz frequency bands under the premise of legal compliance. In these two Deploy LTE FDD network on the frequency band; 900MHz is China Mobile's main 2G frequency band. Driven by this policy, China Mobile quickly re-cultivated 900MHz and quickly built 4G and NB-IoT networks.It can be seen that in terms of network infrastructure, many high-quality frequency resources withdrawn from 2G Network are used for NB-IoT construction, which to a certain extent is also a manifestation of channeling 2G IoT to the NB-IoT entrance.A key decision in the breakthrough development of NB-IoTThis document from the Ministry of Planning and Construction of China Mobile has aroused heated discussion in the industry. In the author's opinion, this is a very critical decision of China Mobile in promoting the development of NB-IoT, which highlights its determination in the development of NB-IoT. At the same time, In the long run, it will also substantially optimize its IoT connection structure. The significance of this decision can be seen from the analysis of the following aspects.(1) Pay equal attention to stopping 2G new additions and building high-quality NB-IoT networksIn this document, in addition to the highlight of "the decision to stop adding new 2G IoT users before the end of 2020", the decision to "build 118,000 new NB-IoT base stations nationwide in 2020" deserves more attention.As analyzed above, China Mobile has decided to stop adding new 2G IoT users, and this new demand will be channeled to the NB-IoT network. China Mobile has the best 2G network in the world, and users migrating from 2G to the network will be taken over by NB-IoT. The network to be taken over should also be a high-quality network to provide users with better services. China Mobile's decision to add 50% of NB-IoT base stations is behind its goal of building a high-quality NB-IoT network.In May this year, the "Notice on Further Promoting the Comprehensive Development of the Mobile Internet of Things" issued by the Ministry of Industry and Information Technology also mentioned: further increasing the deployment of NB-IoT networks, building new NB-IoT base stations as needed, and achieving universal coverage in urban areas at the county level and above. Coverage, achieving deep coverage for indoor, traffic network, underground pipe network, modern agricultural demonstration areas and other application scenarios. Previously, China Mobile's NB-IoT network has achieved coverage in 346 cities. With the addition of 118,000 NB-IoT base stations this year, it is believed that deeper coverage will be achieved.(2) Open the road to optimization of mobile Internet of Things connection structureAs of the end of 2019, China Mobile's IoT connections reached 884 million, accounting for more than 70% of the total connections of the three major operators. In 2017, the number of China Mobile's IoT connections was 229 million, an increase of 655 million in two years. This growth rate is absolutely leading among global operators, but the IoT connection structure formed is not reasonable.From the previous analysis of 2G connections, we can estimate that 2G accounts for the majority of China Mobile’s 884 million IoT connections. Such a structure is contrary to the general trend of 2G network frequency reduction and network withdrawal, and is not conducive to its expansion of the Internet of Things industry ecology and the development of new business models. The 2G network has been carrying IoT connections for a long time, which will lead to a situation where the last one cannot be eliminated in the long run. As a component of 5G mMTC, NB-IoT can carry corresponding IoT users for a long time. In the end, most 2G users will still have to migrate to NB-IoT.This time, China Mobile proactively proposed to stop adding new 2G IoT users, which can be seen as its initiative to start optimizing the IoT connection structure, further reducing the proportion of 2G IoT in the total IoT connections, and increasing NB-IoT and 4G connections. The proportion is in line with the long-term development trend of the industry, and also creates conditions for China Mobile's innovation based on NB-IoT and 4G Internet of Things.Since China Mobile occupies an absolute leading position in the number of IoT connections, it has proactively started optimizing the IoT connection structure, which will also change the national IoT connection structure to a certain extent and further accelerate the innovation of China Telecom and China Unicom in this area.(3) Continue to promote the signal of 2G frequency reduction and network withdrawal, and accelerate the conversion of old and new kinetic energyStopping new 2G IoT users and increasing the number of NB-IoT base stations also implies China Mobile’s determination to continue promoting 2G frequency reduction and network withdrawal. In the context of this year's new infrastructure construction, while leading infrastructure construction, it is also necessary to accelerate the withdrawal of old production capacity. 2G frequency reduction and network withdrawal is an important manifestation of the conversion of old and new momentum in the field of Internet of Things.The 2G network has been in operation for 20 years. Against the background of intergenerational upgrades in mobile communications and the acceleration of 5G commercial use, the shortcomings of the 2G network have become increasingly apparent. For example, the 2G network occupies the golden frequency band, but its resource utilization efficiency is far lower than that of new communication systems; the spectrum efficiency and energy efficiency of the 2G network can no longer meet the requirements of the industry; and the 2G industry ecology has undergone tremendous changes, and many manufacturers have withdrawn from this industry. In the field, the subsequent operation and maintenance cost of the network is too high.Actively promoting 2G frequency reduction and network withdrawal to develop NB-IoT is to a large extent an important way to improve 5G infrastructure and industrial ecology. As we all know, NB-IoT has been included in the 5G candidate standards, and the NB-IoT network will become an infrastructure component in the future 5G mMTC scenario; NB-IoT supports the needs of digital upgrades in thousands of industries, and currently NB-IoT faces all Users are all the user groups that 5G Internet of Things must cover, forming the pioneers of the expansion of 5G ecology.This initiative to stop the development of 2G IoT users has once again sent a clear signal to the industry about 2G frequency reduction and network withdrawal. Since China Mobile has the largest 2G network in the world, the clear attitude towards 2G frequency reduction and network withdrawal will undoubtedly provide a clear direction for the development path of the entire Internet of Things industry.As China Mobile has clearly stopped adding 2G IoT users, the capacity of the 2G IoT pool has begun to enter the downstream channel. The closure of the 2G IoT pool inlet will inevitably pave the way for the expansion of the new inlet of NB-IoT. China Mobile's initiative to clarify its attitude towards 2G IoT is undoubtedly a wise move under the current development environment. It has made a key decision to promote the development of NB-IoT and also opened the way to optimize the overall structure of IoT connections.
05-29

2020

MediaTek executives join OPPO, another mobile phone factory that develops its own chips?

According to the Japanese media "Nikkei Asian Review", affected by the United States' suppression of domestic high-tech companies such as Huawei, OPPO is currently stepping up its internal mobile chip design and development work and actively improving its ability to independently manufacture mobile chips, starting from MediaTek. , Huawei HiSilicon and Ziguang Zhanrui and other chip suppliers have dug top engineering talents.According to people familiar with the matter, in order to accelerate the progress of the company's self-developed chips at full speed, OPPO has poached a number of engineers from the well-known chip supplier MediaTek and the second largest domestic chip supplier UNISOC, hoping to Shanghai formed an experienced chip team.Not only that, there is also news that OPPO has hired Jeffrey Ju, the former chief operating officer of MediaTek and a former executive of Xiaomi, and he will serve as a consultant. OPPO also contacted senior executives from Qualcomm, Huawei HiSilicon and MediaTek, and successfully poached an executive who was involved in 5G chip development at MediaTek, which is expected to further accelerate independent research and development.Personally, I think independent research and development of chips is a good thing. Having the ability to independently design and develop chips can help OPPO reduce its dependence on chip suppliers and improve its control over the supply chain. As an exclusive core component that no one else has, excellent self-developed chips can help OPPO establish a competitive advantage in domestic and overseas markets.Freezing three feet is not a day's cold. Independent research and development of chips is a difficult and long road. The decision to embark on this road means a large amount of development capital expenditure, and a large number of top engineers have invested every day for several years. These efforts will take years to bear fruit.From the current domestic point of view, only Huawei and Xiaomi have ever set foot in the road of self-developed chips. Huawei is a pioneer in independent research and development of chips and the largest chip developer in China. The HiSilicon department’s more than ten years of research and development and accumulation have created the glory of the Kirin processor today. Xiaomi is relatively young. Its chip department was established in 2014. However, after the collapse of the ThePaper S1 released in 2017, it has not yet released a second-generation mobile chip. Will OPPO's self-developed chip eventually succeed? let us wait and see.

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