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Determining Location Using Magnetic Fields From AC Power Lines

  • US 20150153151A1
  • Filed: 02/20/2014
  • Published: 06/04/2015
  • Est. Priority Date: 12/04/2013
  • Status: Active Grant
First Claim
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1. A method for determining location using magnetic field readings, the method comprising:

  • obtaining, by one or more computing devices, a reading of a magnetic field collected by a magnetometer;

    determining, by the one or more computing devices, a plurality of characteristics of a magnetic field based at least in part on the reading, wherein one or more of the plurality of characteristics describe a component of the magnetic field that exhibits a frequency at which electrical power is transmitted along one or more power lines;

    comparing, by the one or more computing devices, the plurality of characteristics to a plurality of expected values associated with each of a plurality of locations, wherein the plurality of expected values for each location are provided by a map of the magnetic field.

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