Estimation of walking trajectory using ankle-mounted sensor

Keita Mishima; Sagawa Koichi

doi:10.1117/12.783976

9 January 2008 Estimation of walking trajectory using ankle-mounted sensor

Keita Mishima, Sagawa Koichi

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.

Citation Download Citation

Keita Mishima and Sagawa Koichi "Estimation of walking trajectory using ankle-mounted sensor", Proc. SPIE 6794, ICMIT 2007: Mechatronics, MEMS, and Smart Materials, 67943S (9 January 2008); https://doi.org/10.1117/12.783976

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available