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Crowd size estimation based on wireless signal absorption

  • US 10,374,646 B1
  • Filed: 12/19/2018
  • Issued: 08/06/2019
  • Est. Priority Date: 02/07/2018
  • Status: Active Grant
First Claim
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1. A method of estimating crowd size based on detected wireless signal absorption, the method comprising:

  • receiving, by a receiving device, a plurality of wireless signals from a plurality of transmitting devices;

    detecting a plurality of power levels for the plurality of wireless signals, wherein each power level of the plurality of power levels corresponds to one of the plurality of wireless signals;

    analyzing, by one or more processors, the plurality of power levels to determine three characteristic power levels of the plurality of power levels;

    calculating, by the one or more processors, an absorption amount based on the three characteristic power levels; and

    estimating, by the one or more processors, a number of people based at least in part on the absorption amount.

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