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SYSTEMS AND METHODS OF DEVICE-FREE MOTION DETECTION AND PRESENCE DETECTION

  • US 20120146788A1
  • Filed: 12/13/2011
  • Published: 06/14/2012
  • Est. Priority Date: 12/13/2010
  • Status: Active Grant
First Claim
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1. A system for motion detection and presence detection within an area of interest, comprising:

  • a plurality of nodes configured to be arranged around the area of interest and automatically form a wireless network, wherein the plurality of nodes is configured to transmit wireless signals as radio waves and configured to receive the transmitted wireless signals and measure received signal strength (“

    RSS”

    ) of the transmitted wireless signals between the plurality of nodes, wherein the plurality of nodes reports values for the measured RSS of transmitted wireless signals; and

    a computing device in communication with the plurality of nodes and configured to receive reported values for the measured RSS of the transmitted wireless signals between the plurality of nodes and track the reported values over time, wherein the computing device is further configured to process the reported values using an aggregate disturbance calculation to detect motion and presence within the area of interest.

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