9 January 2008 Estimation of walking trajectory using ankle-mounted sensor
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Proceedings Volume 6794, ICMIT 2007: Mechatronics, MEMS, and Smart Materials; 67943S (2008) https://doi.org/10.1117/12.783976
Event: ICMIT 2007: Mechatronics, MEMS, and Smart Materials, 2007, Gifu, Japan
Abstract
Estimation of walking trajectory using ankle-mounted sensor is discussed. The three-dimensional walking distance is delivered by the integration of the three-dimensional acceleration of ankle during swing phase. Since the sensor system is attached on the ankle, the acceleration data measured on the ankle include acceleration of gravity that causes inaccurate calculation of the velocity and the distance. Three gyros are used to compensate the rotation of the sensor system. Healthy volunteers performed level walk, ascending and descending to verify the proposed method. And the experimental results showed that the estimation error of the distance in level walk was -6.9 [%] on average and the estimation errors of the height in ascending and descending were 4.5 [%] and -22.0 [%] on average.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Keita Mishima, Keita Mishima, Sagawa Koichi, Sagawa Koichi, "Estimation of walking trajectory using ankle-mounted sensor", Proc. SPIE 6794, ICMIT 2007: Mechatronics, MEMS, and Smart Materials, 67943S (9 January 2008); doi: 10.1117/12.783976; https://doi.org/10.1117/12.783976
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