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System and methods of deploying location tracking tags

  • US 10,142,797 B2
  • Filed: 07/25/2016
  • Issued: 11/27/2018
  • Est. Priority Date: 07/25/2016
  • Status: Active Grant
First Claim
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1. A mobile computing device configured to determine a location of an unknown tag having an unknown fixed location, the mobile computing device comprising:

  • a processor;

    memory; and

    a communication interface configured to;

    receive, from first tags each having a known fixed location, first identifiers corresponding to the first tags;

    receive, from the unknown tag, a second identifier corresponding to the unknown tag; and

    receive, from the unknown tag, third identifiers corresponding to neighboring tags of the unknown tag;

    wherein the processor is configured to;

    determine the location of the unknown tag based on (1) the known fixed locations of the first tags and (2) the third identifiers corresponding to the neighboring tags; and

    determine the location of the unknown tag by using one or more of an intersection operation and triangulation based on a detected broadcast power level of each of the neighboring tags received with the third identifiers, wherein the triangulation based on the detected broadcast power level comprises;

    determining a radial distance from each of the neighboring tags based on the detected broadcast power level corresponding to the neighboring tags; and

    comparing the radial distances to determine a meeting location of the radial distances when originating from corresponding ones of the neighboring tags, wherein the meeting location corresponds to the location of the unknown tag.

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