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Systems and methods for detecting mobile device movement within a vehicle using accelerometer data

  • US 9,654,932 B1
  • Filed: 09/13/2016
  • Issued: 05/16/2017
  • Est. Priority Date: 09/13/2016
  • Status: Active Grant
First Claim
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1. A mobile device movement detection system comprising:

  • at least one processor; and

    memory storing computer-readable instructions, that when executed by the at least one processor, cause the system to;

    collect, by a sensor data collection device of the system, acceleration data from an accelerometer associated with a mobile device within a vehicle at a first time and at a second time;

    collect, by the sensor data collection device, sensor data from sensors associated with the mobile device, wherein the sensors comprise the accelerometer, a GPS receiver, and a gyroscope;

    process, by a sensor data processing device, the acceleration data to remove a gravity component of the acceleration data, and generate a processed acceleration data at the first time and at the second time;

    determine, by a movement event detection device, that a mobile device movement event has occurred at the second time based, at least in part, on three-dimensional vectors representing the processed acceleration data at the first time and at the second time;

    aggregate, by a sensor data aggregation device, the sensor data from the sensors associated with the mobile device for a window of time starting a first predetermined duration before the second time and ending a second predetermined duration after the second time, and generate an aggregated sensor data;

    determine, by a risk determination device, a risk score based, at least in part, on the aggregated sensor data for the window of time; and

    generate, by a risk feedback generation device, a notification to the mobile device based, at least in part, on the risk score.

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