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The Internet of Things

The Internet of Things is an important component of the new generation of information technology and an important stage of development in the "information" era. Its English name is "Internet of Things (IoT)". As the name implies, the Internet of Things is the Internet where things are connected. This has two meanings: first, the core and foundation of the Internet of Things is still the Internet, which is an extension and expansion of the Internet.

Second, its user end extends and expands to any article for information exchange and communication, i.e. matter and phase are closely related. The Internet of Things is widely used in the integration of networks through communication sensing technologies such as intelligent sensing, identification technology and pervasive computing. Therefore, it is also called the third development wave of world information industry after computers and the Internet. The Internet of Things is the application and extension of the Internet. The Internet of Things is not so much a network as a business and application. Therefore, application innovation is the core of the development of the Internet of Things, and innovation 2.0 with user experience as the core is the soul of the development of the Internet of Things.

Key technology

There are three key technologies in application of Internet of Things

1. Sensor technology: This is also a key technology in computer applications. As we all know, so far most computers have been processing digital signals. Since there is a computer, it is necessary for sensors to convert analog signals into digital signals before computers can process them.

2. RFID tag is also a kind of sensor technology. RFID technology is a comprehensive technology that integrates wireless radio frequency technology and embedded technology. RFID has broad application prospects in automatic identification and goods logistics management.

3. Embedded system technology: It is a complex technology integrating computer software and hardware, sensor technology, integrated circuit technology and electronic application technology. After decades of evolution, intelligent terminal products characterized by embedded systems can be seen everywhere, such as MP3 players around people and satellite systems in space and aviation. Embedded systems are changing people's lives and promoting the development of industrial production and national defense industry.

If the Internet of Things is used as a simple metaphor for human body, sensors are equivalent to human eyes, nose, skin and other senses. The network is the nervous system used to transmit information, while the embedded system is the human brain. After receiving the information, classification processing should be carried out by the embedded system. This example vividly describes the position and function of sensors and embedded systems in the Internet of Things.

Scope of use

The Internet of Things is widely used in many fields, including intelligent transportation, environmental protection, government work, public safety, safe homes, intelligent fire control, industrial monitoring, energy monitoring, environmental monitoring, street lighting control, landscape lighting control, building lighting control, plaza lighting control, elderly care, personal health, flower cultivation, water system monitoring, food traceability, enemy investigation and intelligence gathering.

The Internet of Things makes full use of the new generation of IT technology in all walks of life. Specifically, sensors are embedded and equipped in various objects such as power grids, railways, bridges, tunnels, highways, buildings, water supply systems, dams, oil and gas pipelines, and then the "Internet of Things" is integrated with the existing Internet to realize the integration of human society and physical systems. In this integrated network, there is a super powerful central computer group. It can implement real-time management and control of personnel, machines, equipment and infrastructure within the integrated network. On this basis, human beings can manage production and life in a more refined and dynamic way to achieve a "smart" state, improve resource utilization rate and productivity level, and improve the relationship between human beings and nature.

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