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Method for the automatic calibration of location anchors

  • US 20080220780A1
  • Filed: 03/07/2007
  • Published: 09/11/2008
  • Est. Priority Date: 03/07/2007
  • Status: Abandoned Application
First Claim
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1. A method comprising:

  • exchanging at least two anchor messages between at least two anchor radios wherein the anchor radios have anchor locations and wherein the anchor messages have anchor received signal strengths;

    determining at least two anchor attenuation values from the anchor locations and the anchor received signal strengths wherein the anchor attenuation values are uniquely associated with the anchor radios;

    receiving at least two target receptions wherein a target transmits a signal that is received by at least two of the anchor radios and wherein each target reception has a target received signal strength; and

    determining a target location from the target received signal strengths, the anchor attenuation values, and the anchor locations.

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