A sensor is a sensing and conversion device that detects information such as temperature, sound, light, etc., and then converts them into current, voltage (isoelectric signals), etc. on the machine. With it, the machines produced by humans can become intelligent. Let's take a look at the possible trends in sensor technology.

(1) Systematization Systematization refers to not considering sensors or sensing technology as a separate device or technology, but applying engineering research methods in accordance with the requirements of information theory and systems theory, emphasizing the systematic and synergistic development of sensors and sensing technology sex. Put sensors as an important part of information recognition and processing technology, and develop sensor technology, computer technology and communication technology in coordination. The independence, integration and dependence among sensing technology, computing technology and communication technology must be systematically considered. The intelligent networked sensor is one of the main symbols of this development trend. (2) Innovation Innovation mainly includes the use of new principles, new effects, and new technologies. Such as the use of nanotechnology to make nanosensors. Compared with traditional sensors, the reduced size, improved accuracy, and greatly improved performance provide many new methods for sensor fabrication. Using quantum effects to develop quantum sensors that are sensitive to certain measurands, such as resonant tunnel diodes, quantum well lasers, quantum interference components, etc. 1000 times), stealing efficiency, high integration, high efficiency and other advantages. Develop new sensors using new materials. For example, palladium nano-112 sensors, gold nano-polymer sensors, carbon nano-polymer sensors, and resistance strain nano-pressure sensors are made by using nanomaterials. Using the giant magnetoresistance effect of nanomaterials, scientists have developed various nanometer magnetosensitive sensors. Develop sensors for special purposes, special environments, and special processes. Such as sensors in high temperature, high pressure, corrosion resistance, strong radiation and other environments. Sensors utilizing 3D printing technology. Flexible sensors, quantum sensors, etc. (3) Miniaturization In the fields of automation and industrial applications, the smaller the volume of the sensor itself, the better. The miniaturization of the sensor means that the characteristic size of the sensitive element is a millimeter (mm)-micrometer (um)-nanometer (nm) type sensor. This type of sensor has the advantages of miniaturization in size and performance, integration in elements and diversity in use, systematicness in function and composite in structure. The miniaturization of the sensor is by no means the miniaturization or reduction of the feature size, but a high-tech microsystem with new mechanism, new structure, new function and new function. The preparation process involves MEMS technology, 1C technology, laser technology, precision ultra-fine processing technology, etc. (4) The intelligence of the intelligent sensor means that the sensor has artificial intelligence such as memory, storage, thinking, judgment, and self-diagnosis. Its output is no longer a single analog signal, but a digital signal after the microprocessor, and even has an executive control function. Technological developments show that digital signal processors (DSPs) will drive the development of many new, next-generation sensor products. With the development of 5G communication, big data, AR, VR, cloud computing, etc., as well as the application of new technologies such as robot internal driving and artificial intelligence, the world has entered the intelligent era from the original electric era, and sensors have also ushered in a new era. The age of intelligence. Zhaneng sensors are widely used in consumer electronics, new high-end automobiles, industrial detection and control, intelligent medical, intelligent agriculture, intelligent transportation and other fields. The Accenture Laboratory in San Jose, USA, has developed a sensor called smart dust. The sensor is extremely small and can measure parameters such as temperature, humidity, light, etc. The sensor is embedded with a microprocessor, software code, and a wireless communication system, which can be sprayed on trees or other objects. When abnormality is detected, it can send a signal , to monitor the area. (5) Passive sensors are mostly the conversion of non-electricity to electricity, and cannot work without power supply. In the field or in places far away from the power grid, batteries or solar energy are often used for power supply. It is inevitable to develop passive sensors with low power consumption. Development direction, not only save energy, but also improve system life. (6) Networking Networking means that the sensor implements the TCP/IP protocol on-site, so that the on-site measurement and control data can be logged on the network nearby, and the information can be released and shared in real time within the range of the network. To make networked sensors independent nodes, the key is to standardize the network interface. At present, there are wired networked sensors and wireless networked sensors. Wireless sensor network is an intelligent autonomous measurement and control network system that is composed of tiny sensor nodes with communication and computing capabilities, which are deployed in unattended monitoring areas, and can independently complete designated tasks according to the environment. Wireless sensor network is a measurement and control network. (7) Industrialization accelerates the formation of a sensor development model from R&D to industrial production, revealing the law of sensor industrialization, the dialectical relationship between cost and price, and industrialization is the key step for Chinese sensors to truly walk out of the ivory tower.