RFID Reader Anti-collision Mechanism
The second important aspect of RFID classification is whether it is necessary to read multiple tags at the same time. In order to realize this function, the technology adopted in communication is (anti-collision) 'anti-collision'. Reading multiple tags at the same time is often talked about as RFID is far superior to graphic codes, but if there is no anti-collision function, the RFID system can only read and write one tag. In this case, if more than two tags are in the readable range at the same time, it will cause a reading error. Secondly, let's briefly explain the working principle of the anti-collision (anti-collision) function. Even the RFID system with anti-collision (anti-collision) function does not actually read the contents of all tags at the same time. When multiple tags are detected at the same time, the function of searching for signals and preventing collisions starts to operate. In order to search, first determine the search conditions. 1). First, the reader