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SYSTEM AND METHOD FOR OCCUPANCY DETECTION

  • US 20100225764A1
  • Filed: 03/04/2009
  • Published: 09/09/2010
  • Est. Priority Date: 03/04/2009
  • Status: Active Grant
First Claim
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1. A detection system, comprising:

  • a plurality of sensors, comprising;

    an entry sensor having a field of view oriented to detect object entry with respect to an entry portion of an occupancy volume; and

    an exit sensor having a field of view oriented to detect object exit with respect to an exit portion of the occupancy volume, the exit portion different than the entry portion;

    at least one approach sensor having a field of view oriented to detect object approach relative to the entry portion of the occupancy volume; and

    at least one retreat sensor having a field of view oriented to detect object retreat relative to the exit portion of the occupancy volume.

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