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SYSTEMS AND METHODS FOR OBJECT LOCALIZATION AND PATH IDENTIFICATION BASED ON RFID SENSING

  • US 20090027165A1
  • Filed: 12/21/2007
  • Published: 01/29/2009
  • Est. Priority Date: 07/27/2007
  • Status: Active Grant
First Claim
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1. A radio frequency identification system comprising:

  • a plurality location-based endpoints, each of the endpoints having associated with it a plurality of radio frequency identification (RFID) tag readers;

    a computer in signal communication with the plurality of RFID tag readers;

    a memory associated with the computer, the memory storing data indicating that an RFID tag has been read by one or more of the RFID tag readers; and

    a software module for storage on and operable by the computer, the software module including programming instructions causing the computer to determine that the tag is present at a first one of the plurality of endpoints when the computer determines that the tag has been read by a specified number of RFID tag readers from among the plurality of RFID tag readers associated with the first one of the plurality of endpoints, and further wherein each of the specified number of RFID tag readers is determined to have read the tag within a specified time.

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