The development of today's world has shifted from a traditional resource-driven type to an era of digital economy where data is the main driving force. Data has replaced oil and has become the most valuable resource. As the source of data collection, the importance of sensors has attracted increasing attention. From non-contact infrared thermometers used in epidemic prevention and control to various sensor devices such as temperature, pressure, and vision in industry, sensors are ubiquitous. It is the only functional device for data acquisition. Data show that in 2020, the global sensor market will reach 166 billion U.S. dollars, a year-on-year increase of 9.2%; global shipments of smart sensors will reach 46 million units, a year-on-year increase of 21%.
The curtain of the Internet of Everything era has been quietly opened by the Internet of Things. With the help of 5G and AI, the Internet of Things will more closely connect every smart device and every enterprise to form a smart society, in which smart sensor technology plays an important basic core effect. At present, scenarios such as smart manufacturing, smart factories, smart homes, and smart medical care make the IOT sensors shine.