UHF RFID technology is used to automatically swipe the card to enter and leave the campus, and many people pass at the same time, and can also be quickly identified. Students do not need to take the initiative to swipe the card, just hang the card on the body or in the bag to pass, which is convenient and fast. How is it realized internally? First of all, what parts does RFID include? 1. Electronic tags: electronic tags are RFID, some are called radio frequency tags and radio frequency identification. It is a non-contact automatic identification technology. It identifies target objects and obtains relevant data through radio frequency signals. The identification work does not require manual intervention. As a wireless version of barcodes, RFID technology has the advantages that barcodes do not have.