Automatic crash detection

  • US 9,650,007 B1
  • Filed: 11/01/2016
  • Issued: 05/16/2017
  • Est. Priority Date: 04/13/2015
  • Status: Active Grant
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First Claim
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1. A method comprising:

  • identifying, by a mobile computing device, a time window, a first acceleration magnitude threshold, and a number of acceleration events threshold;

    a second acceleration magnitude threshold greater than the first acceleration magnitude threshold,determining a number of acceleration events measured by an accelerometer of the mobile computing device exceeding the first acceleration magnitude threshold during the time window;

    responsive to determining that the number of acceleration events measured by the accelerometer of the mobile computing device exceeding the first acceleration magnitude threshold exceeds the number of acceleration events threshold, determining that the mobile computing device is within a vehicle and that the vehicle was involved in a crash;

    responsive to determining that the mobile computing device is within the vehicle and that the vehicle was involved in the crash, sending, via communication circuitry of the mobile computing device and to a crash detection server, a message comprising information identifying an owner of the mobile computing device, information identifying the mobile computing device, and information identifying a location of the mobile computing device;

    determining a second number of acceleration events measured by the accelerometer of the mobile computing device exceeding both the first acceleration magnitude threshold and the second acceleration magnitude threshold;

    and determining a severity of the crash based on the number of acceleration events exceeding the first acceleration magnitude threshold and the second number of acceleration events exceeding both the first acceleration magnitude threshold and the second acceleration magnitude threshold.

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