装着型センサによる前腕の投球動作計測(S64-1 生物医学工学における計測と制御(1),S64 生物医学工学における計測と制御)

概要

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Three-dimensional estimation of forearm movement during pitching utilizing body-mounted sensor is introduced. A sensor system developed in this study is composed of one 3D accelerometer, 3 rate gyros and one tactile sensor and is attached to the subject's elbow to measure the direction of the forearm and release point of the ball from the finger. The integral errors of acceleration, velocity and angular velocity are rejected considering the continuities of velocity, position and direction of sensor system, respectively. One healthy male volunteer performed pitching motion resembling ideal form and unusual one that is observed in child's pitch. The sampling period of the measurement is 1000 [Hz] that is extremely higher than that of video monitoring technique. The experimental results suggest that the estimated trajectory shows qualitative characteristics of the pitching form and precise measurement of the release point of the ball can be achieved.
一般社団法人日本機械学会の論文
2004-09-04