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Method, apparatus, and system for wireless motion monitoring

  • US 10,291,460 B2
  • Filed: 08/11/2018
  • Issued: 05/14/2019
  • Est. Priority Date: 12/05/2012
  • Status: Active Grant
First Claim
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1. A system for detecting object motion in a venue, comprising:

  • a transmitter configured for transmitting a wireless signal through a wireless multipath channel impacted by a motion of an object in the venue; and

    a receiver configured for;

    receiving the wireless signal through the wireless multipath channel impacted by the motion of the object in the venue, andobtaining a time series of channel information (CI) of the wireless multipath channel based on the wireless signal;

    a processor configured for computing motion information related to the motion of the object based on the time series of CI obtained by the receiver, wherein computing the motion information comprises;

    comparing a current window of the time series of CI with a past window of the time series of CI, andcomputing asynchronously a heterogeneous similarity score between the current window and the past window of the time series of CI; and

    a motion detector configured for detecting the motion of the object in the venue based on the motion information and the heterogeneous similarity score.

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