Can RFID Reader Read Multiple Tags?
Yes. An RFID reader can read multiple tags at the same time, without scanning each tag individually. UHF RFID readers use anti-collision protocols to identify tags within the RF field sequentially and rapidly, making batch inventory, tag encoding, checkout, and asset identification possible. GS1 explicitly notes that a single RFID interrogator can read many tags simultaneously, while RAIN RFID guidance describes hundreds of tag identifications within seconds as achievable performance under appropriate conditions. That distinction matters. “Multiple tags” does not mean that every tag is physically transmitting at exactly the same instant. The reader manages the tag population through an inventory and anti-collision process, rapidly singulating individual tags so the application receives a usable stream of unique IDs. How Does an RFID Reader Read Multiple Tags? In a typical UHF RFID environment, the reader creates an RF interrogation zone. Passive tags entering that zone receive e...