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Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
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Sensors and Materials, Volume 31, Number 2(3) (2019)
Copyright(C) MYU K.K.
pp. 629-644
S&M1802 Research Paper
https://doi.org/10.18494/SAM.2019.2167
Published: February 28, 2019

Wearable Sensor for Measurement of Gait Walking and Running Motion [PDF]

Yi-Cheng Huang, Yu-Rui Chen, Hung-Yi Wu, and Yu-Jui Huang

(Received October 24, 2018; Accepted January 29, 2019)

Keywords: inertia measurement unit (IMU) sensor, step count, step frequency, wearable device

In this work, we developed a smart wearable device for gait speed measurement with dual wireless communication on the feet by using an inertia measurement unit (IMU) sensor. To discover step counts and speed information, pitch and yaw angles were calculated successfully from IMU signals using a Kalman filter and a moving average algorithm. Walking step counts were calculated using the sensor; the results demonstrated almost zero errors and averaged more than 90% accuracy in walking and running measurements. The observable speed for two-foot indication and adapted variation can be implemented on the sensor to gauge walking and running speeds for different subjects. Step counts and the swing frequency were tested and compared with results over a treadmill using a commercial chip in the insole of a shoe. Experimental results were validated using fast Fourier transform from the acquired pitch angle history. The pitch and yaw angles of users’ tibias can be used as controllable monitoring tags for personal health information in the future.

Corresponding author: Yi-Cheng Huang


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Cite this article
Yi-Cheng Huang, Yu-Rui Chen, Hung-Yi Wu, and Yu-Jui Huang, Wearable Sensor for Measurement of Gait Walking and Running Motion, Sens. Mater., Vol. 31, No. 2, 2019, p. 629-644.



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