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RFID TAG TRACKING SYSTEM AND RFID TAG TRACKING METHOD

  • US 20120007716A1
  • Filed: 07/06/2010
  • Published: 01/12/2012
  • Est. Priority Date: 07/06/2010
  • Status: Abandoned Application
First Claim
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1. A radio frequency identification (RFID) tag tracking system, comprising:

  • an RFID tag, periodically emitting a plurality of tag signals having different original signal strengths, and the original signal strength of each tag signal determining a signal receiving boundary relative to the RFID tag;

    at least one radio frequency identification (RFID) reader, for receiving the tag signals emitted by the RFID tag, and determining the received tag signal as a receivable signal when the RFID reader is in each signal receiving boundary and a receiving strength corresponding to the received tag signal is greater than a threshold value; and

    a backend-server, for determining a possible position area of the RFID tag relative to the RFID reader according to the signal receiving boundary corresponding to the receivable signal.

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