RFID TAG DATA ACQUISITION SYSTEM

摘要

An RFID system (100) that facilitates the accessing of RFID tag data within an RFID environment. The system (100) includes a plurality of RFID readers (10.1 to 10.q) and at least one controller (102). Each reader (220) includes an RF tag interrogator (236) and an RF receiver (238). Each interrogator (236) is operative to transmit an RF signal for interrogating at least one RFID tag (12) disposed within an RF coverage region associated with the interrogator (236). Each receiver (238) is operative to receive at least one RF signal including tag data in response to the interrogation of the tag. The readers (10.1 to 10.q) and the controller (102) are operative to perform RF monitoring operations to allow the controller to determine the operational status of an interrogator, and to control the operation of the interrogator and the receiver. The controller (102) is further operative to perform interrogation scheduling operations to avoid interference at at least one of a receiver and a tag. Additionally, the system (100) is operative to determine a location of at least one tag (12) with reference to a plurality of predefined locations within the environment in which the readers are deployed.