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Vehicle monitoring module

  • US 10,429,408 B2
  • Filed: 06/04/2014
  • Issued: 10/01/2019
  • Est. Priority Date: 06/04/2014
  • Status: Active Grant
First Claim
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1. A portable system for monitoring vehicle driving conditions of a vehicle comprising:

  • a processor;

    an accelerometer unit in communication with the processor to provide accelerometer data for a first accelerometer axis, a second accelerometer axis, and a third accelerometer axis;

    a gyroscope unit in communication with the processor to provide gyroscope data for a first gyroscope axis, a second gyroscope axis, and a third gyroscope axis;

    a housing unit enclosing the processor, the accelerometer unit, and the gyroscope unit, the processor being configured to determine a gravity plane perpendicular to the gravity direction using rate of angular change data of the gyroscope for a plurality of turns when the vehicle is moving before determining a primary axis of the vehicle or a transverse axis of the vehicle, and after determining the gravity plane determining the primary axis or transverse axis of the vehicle based on the gravity plane the processor being configured to determine an orientation based on the primary axis or transverse axis of the vehicle relative to the accelerometer unit and the gyroscope unit based on the accelerometer data for the first accelerometer axis, the second accelerometer axis, and the third accelerometer axis and the gyroscope data for the first gyroscope axis, the second gyroscope axis, and the third gyroscope axis.

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