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Cooperative sensor-sharing vehicle traffic safety system

  • US 7,994,902 B2
  • Filed: 02/25/2009
  • Issued: 08/09/2011
  • Est. Priority Date: 02/25/2009
  • Status: Active Grant
First Claim
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1. A method of cooperatively sharing traffic safety sensor data between vehicles for avoidance of a pedestrian-vehicle collision in a crosswalk, comprising:

  • using a detection sensor of a detecting vehicle to detect a pedestrian in or proximate to the crosswalk;

    determining a relative position of the pedestrian in a coordinate system relative to the detecting vehicle;

    using GPS equipment of the detecting vehicle to determine at least a GPS location of the detecting vehicle;

    accessing data stored in memory of the detecting vehicle to determine GPS crosswalk boundary data;

    using the GPS crosswalk boundary data and the GPS location of the detecting vehicle to determine a global location of the pedestrian;

    defining a crosswalk path of the pedestrian;

    using communications equipment of the detecting vehicle, communicating the following data to a receiving vehicle;

    the GPS location of the detecting vehicle, the GPS crosswalk boundary data, and the global position of the pedestrian;

    repeating the communicating step for as long as the pedestrian is in the crosswalk path;

    using communications equipment of the receiving vehicle to receive the data; and

    using processing equipment of the receiving vehicle to evaluate the relevance of the data to collision avoidance between the receiving vehicle and the pedestrian.

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