Cutting-edge technologies such as speech recognition, voiceprint recognition, natural language processing, and deep learning have been maturely applied to smart electroacoustic products, forming reliable and sensitive commercial smart electroacoustic products. With the further application of machine learning and other technologies in the field of intelligent electroacoustics, which use data on a large scale to generate models that can understand speech and natural language, future intelligent electroacoustic products can further improve the accuracy of speech recognition and semantic understanding. It will play a more important role in the artificial intelligence industry. Electroacoustic product classification Electroacoustic products use electromagnetic induction, electrostatic induction or voltage effects to complete the conversion of electronic signals and sound signals. The main product categories include speakers, headphones, microphones, etc. Electroacoustic products mainly include electroacoustic components and terminal electroacoustic products. Global speaker market: strong demand for smart speakers According to Statista statistics, in 2019, the global speaker market scale was 28.589 billion U.S. dollars, of which the stereo speaker market was 20.981 billion U.S. dollars, and the smart speaker market was 7.608 billion U.S. dollars. It is predicted that by 2023, the global speaker market will reach USD 43.437 billion. According to statistics from Strategy Analytics, global smart speaker shipments reached 147 million units in 2019, a year-on-year increase of 69.83%. Strong holiday sales in the United States and Europe, as well as the recovery of Google's smart speaker business after new product launches, improved parts supply, and strong promotional activities have driven the growth of global smart speaker quarterly sales. Global headphone market: TWS headphone shipments are rising rapidly In recent years, with the increasing integration of consumer electronics, smart phones have gradually eliminated the earphone jack, and the global demand for TWS earphones has increased rapidly. According to Counterpoint data, the global TWS shipments of true wireless headsets in 2016 were only 9.18 million units, which climbed to 120 million units in 2019, with a compound annual growth rate of 161%. With the continuous optimization of TWS headset functions and increased consumer demand for portable headsets, Counterpoint predicts that global TWS shipments in 2020 are expected to increase by 92% year-on-year to 230 million units. Global microphone market: rapid growth in MEMS microphone shipments The miniature microphones currently used in the market mainly include electret condenser (ECM) microphones and microelectromechanical (MEMS) microphones. Compared with ECM microphones, MEMS microphones have many advantages. First, MEMS supports STM assembly and has higher production efficiency. Second, its package size is about twice as small as ECM. In addition...

The Intelligent Surveillance Camera obtains the video image information of the monitoring target, monitors, records, and traces the video image, and performs corresponding actions manually or automatically according to the video image information, so as to achieve monitoring, control, and security prevention of the monitoring target And intelligent management, it has been widely used in military, customs, public security, firefighting, forestry, dams, airports, railways, ports, urban transportation and many other public places. With the advancement of technology and the reduction of costs, it has gradually spread to home security and Entertainment application. From a functional perspective, the Intelligent Surveillance Camera can be used for security, information acquisition, command and dispatch, etc. It can provide production process control, security of large public facilities, and can also provide various services for medical monitoring and remote education. From the perspective of application fields, smart Surveillance Cameras have been widely used in all walks of life. In addition to the monitoring and alarming of important departments such as archives, document rooms, vaults, and museums, security monitoring is performed in public places. Management and control in the field are also essential. Specific application examples are: 1. Financial field: business hall monitoring, vault monitoring, ATM and self-service bank monitoring, etc. 2. Telecommunications/electricity field: remote monitoring of switch rooms, wireless equipment rooms, power equipment rooms, etc., and remote unattended monitoring of substations and power plants. 3. Commercial market: security monitoring of shopping malls, entrance and exit monitoring of supermarkets, supervision of terminals, containers, large warehouses, etc. 4. Military field: base security, police detection, prison court management, etc. 5. Transportation field: highway toll management, traffic violation and flow monitoring, public transportation vehicle license plate management, remote image monitoring of highways, bridges, railways, airports and other places. 6. Community property management: security precautions in residential areas and offices, unmanned monitoring of smart buildings and parking lots, etc. 7. Home application: Just add a USB Camera and corresponding software system to the existing home microcomputer to realize a digital home monitoring system with strong functions, low price and reliable performance. The system automatically detects the images collected at home. When an abnormality is found, it sends a short message to the phone number specified by the user through the Internet and the short message center, and sends the live image to the user by email. After receiving the short message, the user can clearly understand the situation at home by checking the Email. In addition, users can log on to the computer at home remotely when they are on a business trip to watch the security situati...

What is High Frequency? Above 300MHZ, that is, the short-wave Frequency range with a wavelength of more than 1 meter, is generally called High Frequency. The High Frequency Microwave Circuit Board is heating up on the ground in China. This new type of Circuit Board is regarded as an indispensable accessory product for the electronic information high-tech industry. Foreign experts predict that the market development of High Frequency Microwave Circuit Boards will be very fast. In the fields of communications, medical, military, automotive, computers, instruments, etc., the demand for High Frequency Microwave Circuit Boards is rapidly rising. A few years later, High Frequency Microwave Circuit Boards may account for about 15% of the total printed boards in the world. Many Printed Circuit Board companies in Taiwan, South Korea, Europe, the United States, and Japan have formulated development plans in this direction. European and American plate suppliers can provide more than 100 varieties of plate series with dielectric constants ranging from 2.10, 2.15, 2.17, ... to 4.5, and even higher. Many printed board factories of domestic radar and communication research institutes demand High Frequency Microwave Boards year by year. Domestic large-scale communication enterprises such as Huawei, Bell, and Wuhan Academy of Posts have increasingly demanded High Frequency Microwave Circuit Boards. Foreign companies engaged in High Frequency Microwave products have also moved to China to purchase Circuit Boards for High Frequency Microwave nearby. Various signs indicate that High Frequency Microwave Circuit Boards are heating up in China. Why is it hot? There are three reasons. (1) Part of the frequency bands of High Frequency communications originally used for military purposes were given to civilians (started in 1996), which greatly expanded the development of civilian High Frequency communications. In the long-distance communications, navigation, medical, transportation, transportation, warehousing and other fields show their talents. (2) High confidentiality and high transmission quality make mobile phones, car phones, and wireless communications develop towards High Frequencies, and high picture quality, enable broadcast and television transmission, and broadcast programs with VHF and UHF. The transmission of high information volume requires satellite communications, microwave communications and optical fiber communications to be High Frequency. (3) The processing power of computer technology has increased, and the capacity of information memory has increased, and the speed of signal transmission is urgently required. In short, the High Frequency and high-speed of electronic information products place high demands on the High Frequency characteristics of printed boards.