An Angle Measurement Method by Using Terrestrial Magnetism Sensors on a Ski Jumper's Motion Monitoring System

We are developing a ski jumper's motion monitor system employing terrestrial magnetism and acceleration sensors. On this development, we have confirmed that terrestrial magnetism and acceleration sensors are useful to measure ski jumper's in run descending speed and taking-off positions us...

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Bibliographic Details
Main Authors: Sato, N., Oikawa, M., Takayama, T., Murata, Y.
Format: Conference Proceeding
Language:English
Subjects:
Acceleration
Cameras
Joints
Magnetic sensors
Monitoring
motion capture
Sensor systems
skijumping
terrestrial magnetim sensor
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Summary:We are developing a ski jumper's motion monitor system employing terrestrial magnetism and acceleration sensors. On this development, we have confirmed that terrestrial magnetism and acceleration sensors are useful to measure ski jumper's in run descending speed and taking-off positions using a model of ski jumping ramp. Also, we gathered required measurement by inquiring a ski jumping athlete and his coach. As this result, we confirmed following measurement: in run descending speed, jumper's style and posture at jumping point, and slant of body of the jumper when he is flying. We are developing a ski jumper's motion monitoring system using terrestrial magnetism, acceleration sensors and a video camera. To monitor ski jumper's jumping styles, angles of ski jumper's joints must be measured. In this paper, we describe a method to measure an angle of a joint to monitor ski jumper's style using terrestrial magnetism sensors. Also, we show measured angles using actual ski jumpers' data gathered at ski jumping hill, and we discuss on usefulness of the system.
ISSN:2157-0418
2157-0426
DOI:10.1109/NBiS.2011.19