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ELECTRONIC DEVICE FOR USE IN MOTION DETECTION AND METHOD FOR OBTAINING RESULTANT DEVIATION THEREOF

  • US 20110175806A1
  • Filed: 03/28/2011
  • Published: 07/21/2011
  • Est. Priority Date: 01/06/2010
  • Status: Active Grant
First Claim
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1. An electronic device for use in computers, motion detection or navigation and subject to movements and rotations in dynamic environments including undesirable external interferences, comprising:

  • a housing associated with said movements and rotations of the electronic device in a spatial reference frame;

    a printed circuit board (PCB) enclosed by the housing;

    a nine-axis motion sensor module attached to the PCB, comprising a rotation sensor for detecting and generating a first signal set comprising angular velocities ω

    x, ω

    y, ω

    z associated with said movements and rotations of the electronic device in the spatial reference frame, an accelerometer for detecting and generating a second signal set comprising axial accelerations Ax, Ay, Az associated with said movements and rotations of the electronic device in the spatial reference frame and a magnetometer for detecting and generating a third signal set comprising magnetism Mx, My, Mz; and

    a processing and transmitting module, comprising a data transmitting unit electrically connected to the nine-axis motion sensor module for transmitting said first, second and third signal sets and a computing processor for receiving and calculating said first, second and third signal sets from the data transmitting unit, communicating with the nine-axis motion sensor module to calculate a resultant deviation comprising deviation angles in said spatial reference frame by utilizing a comparison utility to compare said first, second and third signal sets whereby said deviation angles of the resultant deviation of the nine-axis motion sensor module of the electronic device are obtained excluding said undesirable external interferences in the dynamic environments.

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