RFID Reaction Time Reduction
AssigneeRockwell Automation Germany GMBH & Co. KG
InventorsDirk Lorenz, Anatoly Grinberg
Life of this patent
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Abstract
A method, system, and a control device are provided for reducing RFID reaction times. A control unit receives a data signal, which comprises a code signal if a passive RFID transponder is located in the carrier field of an RFID reader. The code represents the identification code of the passive RFID transponder. The carrier field is disabled to reset the data signal, and thereafter enabled to receive a first portion of the code signal only. The code of the passive RFID transponder is then validated on the basis of said first portion of the code signal only.
Claims15
A method of reducing RFID system reaction time, the method comprising:
- receiving a data signal, which comprises a code signal if a passive RFID transponder is located in a carrier field of an RFID reader, the code signal representing a code of the passive RFID transponder;
- disabling the carrier field to reset the data signal;
- enabling the carrier field to receive a first portion of the code signal;
- validating the code of the passive RFID transponder on the basis of the first portion of the code signal.
An RFID system control device, the device comprising:
- means for receiving a data signal, which comprises a code signal if a passive RFID transponder is located in a carrier field of an RFID reader, the code signal representing the code of the passive RFID transponder;
- means for providing a carrier enable signal for periodically disabling the carrier field to reset the data signal and periodically enabling the carrier field to receive a first portion of the code signal;
- and
- means for validating the code of the passive RFID transponder on the basis of the first portion of the code signal.
An RFID system comprising:
- a microcontroller unit, MCU, for providing a carrier enable signal and receiving a data signal;
- a passive RFID transponder including a code, for providing a response signal comprising the code when being located in a carrier field;
- an RFID reader for generating the carrier field in response to receiving the carrier enable signal, receiving the response signal comprising a code, and providing the data signal comprising a code signal representing the code to the MCU,
- wherein the carrier field is periodically disabled in response to the received carrier enable signal to reset the data signal and periodically enabled to receive a first portion of the code signal.
Dependencies are inferred from the claim text.