System and method for communicating with sensors/loggers in integrated radio frequency identification (RFID) tags

摘要

A system and method is disclosed for communicating with sensors/loggers in integrated radio frequency identification (RFID) tags. An RFID reader uses a Communicate With Data Logger Command to communicate with a data logger in an RFID tag. The RFID reader performs data access processes using an Index Register and a Data Register of the RFID tag. The RFID reader selects one of (1) Index Read access (2) Index Write access (3) Data Write access (4) Data Read access with parity and (5) Data Read access with cyclic redundancy check (CRC). The RFID tag performs the requested data access and then performs an error detection process.

主权项

1. A radio frequency identification (RFID) system that comprises:
an RFID tag that comprises a data logger; and an RFID reader configured to communicate with said data logger of said RFID tag using a Communicate With Data Logger Command comprising a plurality of control bits, wherein the plurality of control bits comprises:
a Register bit that toggles a register to be accessed between an Index Register and a Data Register, wherein the Index Register specifies a memory location in said data logger;an Access Type bit that toggles an access type between read access and write access; andan Error Detection Type bit that identifies a type of error detection to be used with the read access.