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Motion detection devices and systems

  • US 9,423,318 B2
  • Filed: 07/29/2014
  • Issued: 08/23/2016
  • Est. Priority Date: 07/29/2014
  • Status: Active Grant
First Claim
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1. A motion detection device including:

  • an inertial measurement unit (IMU) configured to measure velocity, orientation, and gravitational forces of the motion detection device; and

    a computing component configured to;

    determine spectrum parameters of a mobile vehicle associated with the motion detection device using measurements from the IMU, wherein spectrum parameters include a cutoff frequency range of the mobile vehicle when idle and a maximum frequency of the mobile vehicle when moving along a forward direction;

    determine IMU orientation parameters using measurements from the IMU;

    estimate motion of the mobile vehicle using the spectrum parameters, the IMU orientation parameters, measurements from the IMU, and a motion estimation function; and

    deactivate information conveyed to a user in response to the spectrum parameters of the mobile vehicle being below the cutoff frequency range.

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