Utilizing the many different characteristics of UHF RFID, people have developed a series of applications in logistics management, electronic payment, anti-counterfeiting, security access control, intelligent transportation, electronic business cards, traditional media development, rapid access, animal and plant management, indoor Fields such as navigation have been widely used.
The Internet of Things, first of all, rises in the logistics industry. In order to overcome the shortcomings of traditional logistics, the logistics system now uses a combination of radio frequency identification devices, sensors, GPS (Global Positioning System) and the Internet to form a large network for intelligent logistics management.
Because the UHF RFID reader and tag has the characteristics of reading and writing, no direction, no damage, long-distance reading, and simultaneous reading of multiple items, it can greatly improve the record collection speed and accuracy of the information of the inbound and outbound products, and reduce the artificial errors, improve the speed and accuracy of the inventory.
UHF RFID logistics system can realize full-automatic control and management of goods inbound, outbound, mobile, inventory and other operations. It can track and manage the whole process of goods, and can effectively utilize the storage space of warehouses and improve the storage capacity of warehouses. , thereby reducing the inventory cost of enterprises and enhancing the competitiveness of the enterprise market.
2. Intelligent Transportation System
UHF RFID technology is of great significance to promote the development of modern transportation industry and promote the informationization of transportation. It realizes the concept and development trend of management intelligence, logistics visualization and information transparency in the transportation field. Therefore, more and more transportation industries are beginning to introduce intelligent management systems based on UHF RFID to improve their work efficiency and accuracy. As shown in the following figure, the architecture of the electronic toll collection system is shown, which is mainly composed of long range UHF RFID readers, antennas, lanes and UHF RFID tags on the front windshield of the car.
3. Information Retrieval and Integration
Tag identification provides the most critical information extraction function for UHF RFID applications. However, even though the storable information capacity of UHF RFID has been greatly improved compared to other identification technologies, its storage information is comparable to that of From the perspective of the entire Internet, it is still extremely limited. Therefore, based on the limited keyword information of the tag, UHF RFID tags become the window to access the vast digital media world by extracting information on the Internet side, and provide more dimensional perception through this information retrieval and integration. Experience and achieve fast and efficient information management.
The process of information collection is realized by UHF RFID technology. The whole working process of the UHF RFID system is shown in the figure below. The UHF RFID reader continuously transmits the reference signal carrying energy to the surrounding, and the energy is super The high-frequency RFID tag immediately returns the data carried by the UHF RFID reader in a reflective manner by modulating the circuit signal, and the UHF RFID reader decodes the received data and transmits it to the host for processing.