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Pedestrian safety system

  • US 8,723,691 B2
  • Filed: 04/16/2010
  • Issued: 05/13/2014
  • Est. Priority Date: 04/16/2010
  • Status: Active Grant
First Claim
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1. A pedestrian safety system, comprising:

  • a sound collector configured to collect an audio signal in an environment of a pedestrian;

    a magnetic field detector configured to detect a magnetic field change around the pedestrian, wherein the magnetic field detector is activated when noises in the audio signal exceed a predetermined level;

    a processor configured to analyze the collected audio signal to determine whether the audio signal is associated with a vehicle and a distance between the vehicle and the pedestrian, and configured to determine whether the detected change of the magnetic field is caused by the vehicle approaching the pedestrian; and

    a notification device configured to notify the pedestrian when the processor determines that the audio signal is associated with the vehicle and the distance is less than a predetermined distance, or when the processor determines that the detected change of the magnetic field is caused by the vehicle approaching the pedestrian.

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