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System and Method for Tracking a Moving Person

  • US 20100121572A1
  • Filed: 11/11/2008
  • Published: 05/13/2010
  • Est. Priority Date: 11/11/2008
  • Status: Active Grant
First Claim
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1. A system for tracking a moving person, the system comprising:

  • a controller configured to receive acceleration data that characterizes an acceleration of the moving person in three dimensions, wherein the controller comprises;

    a step rate component that determines a step rate for the person based on a vertical component of the acceleration data;

    a body offset component that determines a body offset angle based on a spectral analysis of the acceleration data and the step rate; and

    a velocity component that determines a reference velocity vector based on the body offset angle and the step rate.

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