Everything in daily life can be "feeling and thinking". "The Internet of Things is very close to us." Ning Jiajun, a member of the National Informationization Expert Advisory Committee, said that the Internet of Things, in layman's terms, is to implant various miniature sensor chips on objects to make them intelligent, and then realize the "dialogue" between people and things and the "communication" between things with the help of wireless networks. These objects can be small watches, keys, cars, buildings, and anything in daily life can be "feeling and thinking". These micro-sensor chips include electronic tags, various sensors, two-dimensional codes and so on. They can obtain the information, status, location and other contents of objects, and then transmit these information through the network.

Shanghai Pudong Airport Intrusion Prevention System is a typical application of the Internet of Things. In order to prevent uninvited guests from entering, tens of thousands of sensor nodes integrated by various sensors are arranged around Pudong Airport, which can distinguish the targets near the airport fence and play the role of automatic early warning. Liu Haitao, deputy director of Shanghai Institute of Microsystems and Information Technology, Chinese Academy of Sciences, said that this is far better than installing thousands of cameras and sending people to watch. The application of Internet of Things in Pudong Airport can even tell whether people are climbing the fence or the typhoon is blowing.

The biggest difference between Internet and Internet is that the latter is an information interaction between people and a virtual world. The Internet of Things is the perception and interconnection of the real physical world. Liu Haitao, who is also the director of Wuxi Hi-Tech Micro-Nano Sensor Network Engineering Technology R&D Center of Chinese Academy of Sciences, said that the Internet of Things is actually a sensor network. The internet of things is from the perspective of industry and users, but from the perspective of technology, it is called sensor network. "One of the most accurate words of the Internet of Things and sensor networks is the Internet of Things and the perception of the world."

In terms of application, the Internet of Things is no stranger. Video surveillance, intelligent transportation and RFID food traceability management successfully realized from Beijing Olympic Games are all applications of the Internet of Things. At present, the Internet of Things has been applied to intelligent buildings, street lamp monitoring, food and drug traceability, intelligent hospitals and other fields, especially in the field of urban public management. There are examples of monitoring and pretreatment of garbage trucks and dangerous goods sources. Many people actually have terminals of the Internet of Things, and a mobile phone with GPS function is a terminal that can be located.

Mei Shishu, director of Beijing Chaoyang District Information Office, said that in Chaoyang District, in order to prevent carbon monoxide poisoning accidents caused by heating, a pilot project was started in March this year, and carbon monoxide sensors were installed in several rented houses, and it was found that deaths could be avoided within two hours.