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Positional locating system and method

  • US 9,767,351 B2
  • Filed: 10/29/2014
  • Issued: 09/19/2017
  • Est. Priority Date: 01/15/2009
  • Status: Active Grant
First Claim
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1. A method of positionally identifying persons within a space comprising:

  • associating an identification generated for one or more of the persons with a device to be worn while the corresponding person moves within the space;

    controlling a beacon included within each device to emit a signal at an interval specified within a beacon transmission schedule;

    controlling one or more cameras to capture images representative of at least a portion of the space, each image plotting recorded signals relative to a viewing angle of the corresponding camera;

    calculating image-based positional coordinates for each signal appearing within each of the captured images, the image-based positional coordinates defining spatial positioning of one or more beacons emitting the signals relative to the viewing angle of the corresponding camera;

    reducing the image-based positional coordinates to space-based positional coordinates, the space-based positional coordinates defining spatial positioning of one or more beacons emitting the signals within at least a coordinate system defined relative to the space; and

    for each of the images, identifying the person at each of the space-based positional coordinates based on the identification of one or more persons scheduled to emit signals at the time the image was captured.

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