As a very important device, the sensor has formed a complete industrial chain. The United States, Japan, and Germany, as the world's three major sensor manufacturers, account for nearly 60% of the market. In recent years, with the development of the Internet of Things and artificial intelligence, the functional requirements of sensors are gradually increasing, and smart sensors are just needed. It provides information exchange and transmission for intelligent devices, and realizes intelligent interconnection of everything.

There are tens of thousands of sensors, which are used in all walks of life. The sensor industry in China started late, but it has developed rapidly. Intelligent sensors have also become the focus of enterprises in recent years. According to the statistics of OFweek electronic engineering network, the smart sensors are deployed in 2018. Nearly 30 companies, half of which are listed companies, have mentioned one point, that is, smart sensors have become the focus of the company's efforts.

The importance and market of smart sensors is increasing and will become a new force in the next few years.

First, the three advantages of smart sensors

The value of the sensor is embodied in the actual application. It is born for the market. The traditional sensor is mainly to meet the accurate transmission requirements of the information. The smart sensor has the advantages of all the traditional sensors. At the same time, the intelligent sensor has information collection and processing and automatic exchange. The ability of information, intelligent sensors with high precision, high reliability, adaptability, and lower prices.

1, high precision

Why can only the accuracy of the sensor be higher than that of the ordinary sensor? This is because the intelligent sensor realizes high-precision information acquisition through software technology. It has the ability of programming automation. It can not only correct the system error through software, but also compensate the randomness appropriately. Error, reduce noise, improve sensor accuracy.

2, high reliability

In improving the reliability of the sensor, the smart sensor integrates the sensor's system miniaturization feature, eliminates the unreliable factors of the traditional structure, improves the system's anti-jamming capability, and the smart sensor also has diagnostic, calibration and data storage functions. Better stability.

3, strong adaptability

There are many types of sensors, because many sensors are not versatile and can only be customized for a certain scene. But smart sensors have led to the versatility of sensors, which can be used in many scenarios. The intelligent sensor expands the measurement and use range through programming, and has strong self-adaptive ability; according to the change of the detection object, the form of the inverse inverse output data is correspondingly changed, and has a digital communication interface function, and has various data output forms, and is adapted to various application systems. The sensor passed the non-smart sensor.

Of course, in order to be a smart sensor, you need a lot of technical support. A good smart sensor consists of a microprocessor-driven sensor and instrument kit that requires communication and onboard diagnostics.
Second, in many new application scenarios, the role of smart sensors is irreplaceable

The role of the sensor is irreplaceable, which is the value of its existence, but in many scenarios, only smart sensors can achieve these functions. As in the application of intelligent robots, traditional sensors cannot realize perception and complete information processing, and have programmability.

In the field of military industry, the high-precision and stability of intelligent sensors are adopted. High-performance microcontrollers are also available in both digital and analog output modes. For users' network-based measurement and custom communication protocols, they need to be based on products. For secondary development, these are unrealistic for ordinary sensors.

In industrial applications, the use of ordinary sensors can not measure and control the viscosity, hardness, surface finish, composition and taste of the product. The smart sensor can directly measure the product indicators, and can also predict and modify.

In the geological measurement process, the sensor needs to measure the pressure of the gas and fluid, the pressure difference, the flow rate and the height of the fluid. At the same time, their precision is very high. It can't be realized without software support. This is basically a smart sensor. Some ability.

In the medical field, blood glucose is usually measured, but the traditional method is to puncture the finger to collect blood, then put the blood sample on the glucose test paper, and finally put the test paper on the electronic blood glucose meter for measurement. Recently, a research institute has developed a glucose watch with a smart sensor, which can be used to achieve blood sugar test and reduce people's suffering.

Today, smart sensors have been widely used in aerospace, defense, petroleum, chemical, mining, geological and industrial and agricultural production. With the advancement of China's "informatization" and "Made in China 2025" strategies, the smart sensor industry will also usher in new growth points, and smart sensors have already penetrated into every aspect of our lives.

Third, the smart sensor is the "library" to achieve "Made in China 2025"

As a system's front-end sensing device, smart sensors play a big role in boosting traditional industry upgrades, and can also promote innovative applications such as robots, drones, smart homes, and smart healthcare. In industrial applications, traditional enterprises are faced with problems such as increased labor costs and declining market demand. Traditional enterprises have begun to shift from labor-intensive to automated and intelligent. In the process of transformation, smart sensors play a vital role in promoting the industry. Intelligent.

According to relevant statistics, in 2015, China's sensor market reached 110 billion yuan, and it is expected to reach 211.5 billion yuan by 2020. The domestic sensor market is highly dependent on imports, especially for high-end sensors. China's high-end sensors import ratio is as high as 80%.

China's emphasis on sensors, the release of sensor-related documents, and the advancement of integrated circuit technology have contributed to the progress and development of sensors in China. Domestic enterprises have also achieved breakthroughs in 2018, and have increased the layout and planning of sensors. Although they are currently unable to compete with developed countries such as Europe and the United States, with the development of the industry, they will become a new force in the smart sensor industry, helping to upgrade the industry.