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REVERSE INFRASTRUCTURE LOCATION SYSTEM AND METHOD

  • US 20080157972A1
  • Filed: 03/18/2008
  • Published: 07/03/2008
  • Est. Priority Date: 09/29/2004
  • Status: Abandoned Application
First Claim
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1. A system by which an object can be located within an area, the system comprising:

  • a moveable radio frequency identification (RFID) tag reader associated with the object and in signaling contact with multiple RFID tags positioned at known locations within the area, wherein the RFID tag reader is adapted to interrogate at least some of the multiple RFID tags, to receive two or more unique identifiers from two or more responding RFID tags, to correlate the two or more unique identifiers with tag location information stored in memory to determine fixed positions for each of the two or more responding RFID tags, and to mathematically determine at least one location solution for the RFID tag reader within the area using the fixed positions.

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