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Method and apparatus for tracking objects and people

  • US 10,152,620 B2
  • Filed: 01/13/2017
  • Issued: 12/11/2018
  • Est. Priority Date: 07/09/2002
  • Status: Active Grant
First Claim
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1. A RFID system comprising:

  • a RFID reader for detecting transponder data from a RFID transponder in any of a plurality of coverage areas;

    a plurality of antennas in communication with the reader, wherein each antenna has an associated coverage area of the plurality of coverage areas;

    a processor in communication with the reader, wherein the processor is configured to receive first transponder data that includes a timestamp from the reader and to generate detection information based on the received first transponder data, wherein the detection information includes first sighting data indicating a first sighting of a first transponder in any of the plurality of coverage areas and last sighting data indicating a last sighting of the first transponder in a first coverage area, and to use the last sighting data of the first transponder to determine that the first transponder is dwelling in the first coverage area, wherein the processor is further configured to determine whether the first transponder has been detected previously by the system in any of the plurality of coverage areas; and

    a storage device, associated with the processor, that holds the detection information.

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