in China since the late 1980 s the research of MEMS technology, including silicon micro pressure sensor, the micro acceleration sensor, micro motor and micro pump. The team more than 10 years, gradually expanding, at the beginning of this century has developed more than 40 units of more than 50 research team, in the aspect of MEMS sensor has carried out a lot of research work, has made great progress. MEMS research direction includes: the combination of miniature inertial devices and inertial measurement; Mechanical quantity miniature sensors and brake; Micro flow devices and systems; Biosensor and biochip and micro operation system; The micro robot; Silicon and silicon manufacturing process. Domestic published literature shows that the development of the vibration of the wheel mechanical gyroscope zero bias stability of 70 & deg;/h, random walk noise 30 & deg;/.
Domestic Internet of Shanghai city information technology co., LTD is a professional Internet solutions provider, research and development, the promotion of the embedded wi-fi, angularityBee, RFID, enherborine - M series products and technical services of high-tech enterprises, in the field of embedded wireless Internet access and industrial control launched a series of solutions and products.
But as a result of basic research is weak, the lack of technical personnel, the lack of investment in technology and capital in various technology in our country, there is still a gap compared with the developed countries abroad, mainly reflected in the mass production time performance of stability and integrity rate of the device are to be improved.
With the rise of the concept of Internet of things, more and more devices require access networks, thus may carry on the intelligent control of equipment. Access to wireless networks is not as simple as imagined, however, the intelligence of 360 released by Wifi terminal, its advocated the idea is can not set the Wifi to computer users easy access to the Internet. Similar, in embedded market, also have so a company, they provide the intelligent WiFi module can be any device connected to the WiFi Internet, it is the celebration of family, a focus on the module of the embedded Internet solution provider.
Has launched a $100 division as bat series WiFi development kit, including the infrared remote control, triaxial acceleration sensor, temperature/analog detection, WiFi, NFC and other functions, and mobile phone APP, greatly simplifies the user's evaluation and development costs.
Micro mechanical acceleration sensor with its attractive characteristics of small size, low cost not only in traditional application fields of application, and & have spent Occupy a broad market in the field of business. The business of low-cost acceleration transducer applications mainly include: civil aviation, vehicle control & have spent System, high speed railway, robotics, industrial automation, prospecting, toys, etc., the main application field for acceleration sensor.
Micro mechanical acceleration sensor applications include security and control function in the car, such as wheel manipulation and auto brakes, airbags on & have spent Rev and anti-lock braking system, etc., which composed of senior safety car. Airbag is to improve the safety of the important components for the car, is a kind of auxiliary restraints. Micro-mechanical acceleration sensor in the car collision make acceleration measured values increase sharply when the signal control, acceleration sensor send air instructions immediately and timely pop-up balloon makes its inflated rapidly, at the driver, crew and block & have spent Between wind glass or car body, in order to protect the personnel.
Automobile anti-skid system is micro mechanical acceleration sensor for auto safety & have spent Another important application of the system includes anti-lock braking system (ABS), acceleration slip control system (ASR) and traction control & have spent Control system (TCS). The cars are driving on a mountain road in the rain and snow, easy to skid and cause an elderly. If the acceleration sensor mounted in the car, in the event of sideslip, before the driver reaction, acceleration signal can be through the first automobile brake system & have spent For emergency brake. In addition, the acceleration sensor can also be used for car positioning measurement system, automatic navigation system, speed control system, the mobile security alarm the vehicle and fuel system, etc., acceleration sensor has now become an important component in the car.
Industrial automation technology is developing rapidly in the field of today, the acceleration of the precision measurement detection is a crucial problem, so for the research and development of all kinds of acceleration sensor is very necessary. Micro acceleration sensors compared with the traditional processing method for manufacturing of acceleration sensor, has small volume, light weight, stable performance, etc, is a prominent representative of inertial sensor. Micro acceleration sensor after 20 years of development, in terms of working principle and test technology has been perfect. At present our country the theory research and engineering application of micro acceleration sensor has compared with the international advanced level, we still have some Watson gap sensor, future research should be toward the high precision, high reliability, high sensitivity, low temperature effect, simplified process, multidimensional direction. In this paper, by experts from the sensor network original, reproduced please indicate. Cn/& have spent
