2014•The Proceedings of Mechanical Engineering Congress JapanOpen access

J2310101 A study on accuracy compensation of motion analysis in sports using inertial sensor

Kiyoshi HIROSE, Akiko Kondo, Hitoshi DOKI

Abstract

This paper proposes the calculation method for the improvement of analysis accuracy. The angular acceleration is used to the kinetics analysis in sports, and the angular acceleration is calculated by time differential of angular velocity. The time differential of angular velocity is calculated after the transformation to the information of global coordinate system. After that, the angular acceleration is transformed the sensor coordinate system for the kinetics analysis. We established the time differential method of the angular velocity by focusing the information of local coordinate system. The angular acceleration can be simply obtained by using this method, and the proposed method can be used to the motion analysis in sports using inertial sensor.

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Key concepts: Angular acceleration, Angular velocity, Acceleration, Coordinate system, Inertial frame of reference, Circular motion, Angular displacement, Compensation (psychology)