Volume 10 Number 6 (Jun. 2015)
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JSW 2015 Vol.10(6): 767-774 ISSN: 1796-217X
doi: 10.17706/jsw.10.6.767-774

Development of a Sensor Module for Estimating the Center of Pressure in Low Cost Gait Rehabilitation Robots

Su-Hong Eom*, Ki-Sun Song , Shin-Yoon Kang , Eung-Hyuk Lee
Department of Electronic Engineering Korea Polytechnic University, #2121, Jeongwang-Dong, Siheung-City, Gyeonggi-Do, Republic of Korea.

Abstract—Gait information of pedestrians is an important factor in gait rehabilitation. The most important factor is to measure the center of pressure (CoP) compared to other measurements because gait patterns are varied according to CoP. Multiple strain gauges, multi-axis load cells, and pneumatic tube sensors have been used to measure the CoP of the body. Because these sensors are large sizes and high prices, these sensors are not suitable for low cost gait rehabilitation robots. Thus, in this study a sensor module that can estimate the CoP of the body roughly is proposed. The proposed sensor module uses resistance variable sensors, which are able to detect positions. For applying the proposed sensor, an extra device is proposed and is combined with sensors for configuring a module. A comparison test is implemented using a pressure sensor with an FSR array structure in order to verify the proposed method. In results, the proposed method represents an agreement in directivity more than 93%.

Index Terms—Slope directions, prosthesis, walking rehabilitation, sensor module for CoP, CoP.

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Cite: Su-Hong Eom, Ki-Sun Song , Shin-Yoon Kang , Eung-Hyuk Lee, "Development of a Sensor Module for Estimating the Center of Pressure in Low Cost Gait Rehabilitation Robots," Journal of Software vol. 10, no. 6, pp. 767-774, 2015.

General Information

ISSN: 1796-217X (Online)
Frequency: Monthly (2006-2019); Bimonthly (Since 2020)
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, Google Scholar, ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat, etc
E-mail: jsw@iap.org
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