Automatic crash detection

  • US 10,083,551 B1
  • Filed: 02/21/2018
  • Issued: 09/25/2018
  • 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;

    receive, from the accelerometer, a plurality of acceleration measurements measured by the accelerometer during a time window comprising a predetermined duration;

    determine, for each acceleration measurement of the plurality of acceleration measurements, a corresponding acceleration magnitude;

    based on the corresponding acceleration magnitude for each acceleration measurement of the plurality of acceleration measurements, identify, from the plurality of acceleration measurements, an acceleration measurement having an acceleration magnitude that satisfies a metric;

    determine whether the acceleration magnitude exceeds a threshold acceleration magnitude;

    after determining that the acceleration magnitude exceeds the threshold acceleration magnitude, corroborate, based on sensor measurements different from the plurality of acceleration measurements, whether a vehicle associated with the mobile computing device was involved in a crash based on the acceleration magnitude of the identified acceleration measurement, determine a confidence value associated with whether the vehicle was involved in a crash; and

    transmit, via the communication circuitry and to a server, data indicative of the acceleration magnitude and data indicative of the sensor measurements.

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