In the past few years, the Internet of Things has revolutionized the information industry following computer, Internet and mobile communications. RFID technology has shown new technological value in the opportunity of the Internet of Things. Today we will analyze the application status and development trend of RFID.
The Internet of Things is based on the computer Internet, using radio frequency automatic identification, wireless data communication and other technologies to achieve the connection of all things. The first step is to establish an information channel between the physical world and the Internet. The "things" of the Internet of Things are all-encompassing, and their size, shape, environment, contents and state of motion vary widely. Therefore, the technology to realize the sensing layer must meet the relevant requirements: wireless, automatic, reliable, and can rely on the absorption of surrounding energy; its hardware equipment must be variable in shape, adjustable in size, simple in manufacturing, low in cost, and able to withstand harsh environments.
RFID, as the first sensory layer technology used in the Internet of Things, complements the Internet of Things. While RFID technology is promoting the development of the Internet of Things, the development of the Internet of Things has also promoted the application of RFID technology. For the special requirements of the Internet of Things, such as fresh foods and drugs, RFID electronic tags can not only provide static information of goods, but also provide dynamic information such as the location of the goods and the surrounding temperature and humidity.
Security applications are still mainstream Currently, RFID technology is mainly used in scenarios such as channel management, data collection and identity verification, site attendance, vehicle positioning, etc. Based on the security prevention, intelligent traffic application, material management and other applications generated by this, It can be seen everywhere in real life.
Channel management channel management includes personnel and vehicles or items. It is actually identifying and confirming the personnel or items entering and leaving the passage, deciding whether to release and record, and alarming the personnel or items that are not allowed to enter or exit, so as to achieve more rigorous Management, our common entrance control, access control, library management, supermarket anti-theft radio frequency card, non-charged parking management system are all channel management.
At present, the most widely used applications should be supermarket anti-theft radio frequency cards, clothing anti-theft, etc. These are basically realized through the access door. Speaking of the access door, I have to mention the application of the access door in book management and warehouse management in recent years.
In the past two years, these two applications have become more and more mature with the development of RFID technology. Through the UHF channel door reader, the management of items has been realized, which greatly improves the work efficiency of the staff.
In addition to the application of the access door, such as the attendance management of the site personnel, it is not achieved by using the access door. Generally, the management of medium and large-scale construction sites has many problems, such as difficulty in querying and large scope of work. By installing an ultra-high-frequency mid-range reader at the entrance and exit gates, and injecting cheaper inlay electronic tags into the helmets worn by the site personnel, efficient informationization of site personnel management can be realized.
Positioning and automated management of people or objects Place RFID readers in designated spaces, moving vehicles, ships or automated assembly lines. RFID tags are placed on mobile personnel, items, materials, semi-finished products, finished products, RFID reading and writing The device is generally connected to the main information management system through a wireless method. The system analyzes and judges the information of the RFID electronic tag, determines the location and other information of the person or the item, and realizes automatic management. Common applications such as power inspection, garbage bin management, Asset management, AGV trolley trackless guidance, production line automation management, parking lot application, etc.