Automatic crash detection

  • US 9,916,698 B1
  • Filed: 08/01/2017
  • Issued: 03/13/2018
  • Est. Priority Date: 04/13/2015
  • Status: Active Grant
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First Claim
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1. A mobile computing device comprising:

  • an accelerometer configured to measure acceleration of at least one axis of the accelerometer;

    communication circuitry configured to wirelessly communicate with other devices;

    a processor; and

    memory storing computer-executable instructions that, when executed by the processor, cause the processor of the mobile computing device to;

    determine whether a trigger event has occurred;

    in response to determining that the trigger event has occurred, initiate a time window for measuring acceleration using the accelerometer, wherein the time window comprises a start time and an end time;

    between the start time and the end time of the time window, receive, from the accelerometer, a plurality of acceleration measurements measured by the accelerometer;

    after the end time of the time window, determine, based on the plurality of acceleration measurements measured by the accelerometer and received between the start time and the end time of the time window, a number of acceleration events occurring during the time window; and

    transmit, via the communication circuitry and to a crash detection server, data corresponding to the number of acceleration events occurring during the time window and indicative of whether the mobile computing device is within a vehicle and whether the vehicle was involved in a crash.

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