publication . Patent . 2008

Method and device for detecting a substantially invariant axis of rotation

Godin, Christelle; Bonnet, Stéphane; Lesecq, Suzanne; Barraud, Alain;
English
  • Published: 13 Nov 2008
  • Publisher: HAL CCSD
  • Country: France
Abstract
The method involves acquiring a physical measure along sensible three axes of a sensor e.g. sensible three axis magnetometer sensor. An invariant rotation axis is estimated in a space of the physical measure. The estimated axis is identified. A value of an indicator for indicating the variations of the rotation axis is calculated. The value of the indicator is compared with the predetermined threshold value. Independent claims are also included for the following: (1) a method for estimating movement of a mobile equipped at a sensor (2) a method for calibrating a sensor for determining the rotation matrix (3) a device for detecting a substantially invariant axis ...
Subjects
free text keywords: MATRIX METHOD, INVARIANT AXIS, ACCELERATION, ANATOMY, ROTATION ANGLE, INERTIAL UNIT, MOTION SENSOR, ROBOTICS, TIME WINDOW, [INFO.INFO-AU]Computer Science [cs]/Automatic Control Engineering
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