Exploring the three core technologies of sensor intelligence

Human beings entered the 21st century and entered the information age in an all-round way. In a certain sense, they entered the era of sensors. In the modern control system, the sensor is in the position of the interface connecting the object to be tested and the test system, and can directly or indirectly contact the object to be measured. It is the "window" of information input, the eye of the Internet of Everything, and the only functional device for data information acquisition. Directly influence and determine the performance of the system. In particular, the current international Internet of Things, big data, cloud computing technology, and even the realization of various technologies in smart cities, the dependence on sensor technology is particularly prominent.

Standard disputed sensor

At present, there are about 26,000 kinds of sensors for global productization. Due to the lack of guidelines and norms for the development of international standards, no authoritative sensor standard types have been developed. Its sensitive mechanism, sensitive materials, use functions, application fields, etc. are intertwined and deeply integrated. It is difficult to clarify. The debates on standards and divisions between countries and industries have never stopped. They have their own opinions and arguments, resulting in chaotic product names, various types and structures. Complex, complex parameters and other complex conditions. Currently, the industry can only be divided into large categories such as simple physical sensors, chemical sensors and biosensors.

Due to the sensitive mechanism, sensitive materials, industrial scene environment, use scenes, and the characteristics of the detected medium and individualized parameters, the structure is complex, and the sensor has been in a variety of varieties and small batch production for a long time. Constrained by factors such as the dispersion of process technology, the complexity and the high cost of equipment and equipment, the industry claims that its production process is to manufacture "industrial crafts." Engineers and technicians from all over the world have developed long-term technology development and innovation in product standardization, performance normalization, functional integration, structural standardization, and industrialization of process equipment and fixtures. A large number of different technical achievements.

The United States clearly proposes three core technologies and innovation trends in sensor intelligence:

1. MEMS process technology. In the miniaturization, low power consumption, low cost, multi-material composite, multi-parameter fusion, iterative upgrade and innovation in large-scale integrated process technology and equipment, micro- and sub-micron high-precision control technology, flexible production technology.

2. Wireless network technology. Adapt to various Internet of Things (Sensor Network) technology promotion and application, wireless networked sensor products and technological innovation under the industrial Internet, artificial intelligence technology, mobile intelligent terminal, 5G technology standards. Mobile (mobile phone, car, boat, aircraft, etc.) or fixed objects (machine tools, buildings, shopping malls, homes, mountains, etc.) as platforms and intelligent nodes for installing and applying sensors, enabling embedded, multi-functional composite and integration, modules Synergistic innovations such as structured architecture and networked interfaces to meet the needs of intelligent, ¡°unmanned¡± management and control of all objects.

Figure 1: Three core technologies for sensor intelligence

3. Micro energy acquisition technology. In the process of indoor and outdoor use of sensor intelligent nodes, especially in the field of use, power supply problems have always been a major obstacle to the promotion and application in various fields. Around the natural world, wind energy, light energy, electromagnetic energy and other micro-energy collection and acquisition, called "micro-energy capture technology", providing energy for sensors will become another direction of technological innovation in the future.

From the perspective of the development of the US sensor industry, it has several characteristics: First, work hard on common basic technologies, pay attention to new technologies and new process applications, and continuously improve quality. The second is to emphasize sensor networking, intelligent node technology, energy capture technology and collaborative innovation. Third, the core technology has the shadow of government control, support, funding and promotion. Fourth, the key areas of promotion and application are obvious, such as military industry, equipment manufacturing, logistics, ecological environment monitoring (forest prevention and control), mobile medical, smart home and so on.