Gait analysis system based on slippers with flexible piezoelectric sensors

Youngsu Cha; Kahye Song; Jisu Shin; Doik Kim

doi:10.1109/ROBIO.2018.8664872

Gait analysis system based on slippers with flexible piezoelectric sensors

Youngsu Cha, Kahye Song, Jisu Shin, Doik Kim

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

8 Citations (Scopus)

Abstract

This study introduces a gait analysis system using a pair of slippers with flexible piezoelectric sensors. We install only one flexible sensor based on polyvinylidene fluoride, which is a flexible piezoelectric material, in each slipper. The flexible sensor is positioned in the slipper sole area under the inner arch of the foot. In this position, the sensor undergoes bending for walking, and generates electrical signals through the piezoelectric characteristic. We focus on the detection of the heel strike and toe-off moments from the sensor output. We then acquire the floor contract information of the slippers from the detection and extract eight gait parameters. We develop a gait analysis system including the sensing slippers, a sensing module for data collection and wireless communication, and an external computer with the data processing program. Moreover, we demonstrate that the proposed total gait analysis system based on the slippers with the flexible piezoelectric sensors works efficiently.

Original language	English
Title of host publication	2018 IEEE International Conference on Robotics and Biomimetics, ROBIO 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2479-2484
Number of pages	6
ISBN (Electronic)	9781728103761
DOIs	https://doi.org/10.1109/ROBIO.2018.8664872
Publication status	Published - 2018 Jul 2
Externally published	Yes
Event	2018 IEEE International Conference on Robotics and Biomimetics, ROBIO 2018 - Kuala Lumpur, Malaysia Duration: 2018 Dec 12 → 2018 Dec 15

Publication series

Name	2018 IEEE International Conference on Robotics and Biomimetics, ROBIO 2018

Conference

Conference	2018 IEEE International Conference on Robotics and Biomimetics, ROBIO 2018
Country/Territory	Malaysia
City	Kuala Lumpur
Period	18/12/12 → 18/12/15

Bibliographical note

Funding Information:
*Corresponding author: Y. Cha (phone: +82-2-958-6949; e-mail: [email protected]) Research supported by Korea Institute of Science and Technology Institutional Program under Grant KIST 2E28250.

Publisher Copyright:
© 2018 IEEE.

Keywords

flexible sensor
gait analysis
piezoelectric
slipper

ASJC Scopus subject areas

Biotechnology
Artificial Intelligence
Human-Computer Interaction

Access to Document

10.1109/ROBIO.2018.8664872

Cite this

Cha, Y., Song, K., Shin, J., & Kim, D. (2018). Gait analysis system based on slippers with flexible piezoelectric sensors. In 2018 IEEE International Conference on Robotics and Biomimetics, ROBIO 2018 (pp. 2479-2484). Article 8664872 (2018 IEEE International Conference on Robotics and Biomimetics, ROBIO 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ROBIO.2018.8664872

Gait analysis system based on slippers with flexible piezoelectric sensors. / Cha, Youngsu; Song, Kahye; Shin, Jisu et al.
2018 IEEE International Conference on Robotics and Biomimetics, ROBIO 2018. Institute of Electrical and Electronics Engineers Inc., 2018. p. 2479-2484 8664872 (2018 IEEE International Conference on Robotics and Biomimetics, ROBIO 2018).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Cha, Y, Song, K, Shin, J & Kim, D 2018, Gait analysis system based on slippers with flexible piezoelectric sensors. in 2018 IEEE International Conference on Robotics and Biomimetics, ROBIO 2018., 8664872, 2018 IEEE International Conference on Robotics and Biomimetics, ROBIO 2018, Institute of Electrical and Electronics Engineers Inc., pp. 2479-2484, 2018 IEEE International Conference on Robotics and Biomimetics, ROBIO 2018, Kuala Lumpur, Malaysia, 18/12/12. https://doi.org/10.1109/ROBIO.2018.8664872

Cha Y, Song K, Shin J, Kim D. Gait analysis system based on slippers with flexible piezoelectric sensors. In 2018 IEEE International Conference on Robotics and Biomimetics, ROBIO 2018. Institute of Electrical and Electronics Engineers Inc. 2018. p. 2479-2484. 8664872. (2018 IEEE International Conference on Robotics and Biomimetics, ROBIO 2018). doi: 10.1109/ROBIO.2018.8664872

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title = "Gait analysis system based on slippers with flexible piezoelectric sensors",

abstract = "This study introduces a gait analysis system using a pair of slippers with flexible piezoelectric sensors. We install only one flexible sensor based on polyvinylidene fluoride, which is a flexible piezoelectric material, in each slipper. The flexible sensor is positioned in the slipper sole area under the inner arch of the foot. In this position, the sensor undergoes bending for walking, and generates electrical signals through the piezoelectric characteristic. We focus on the detection of the heel strike and toe-off moments from the sensor output. We then acquire the floor contract information of the slippers from the detection and extract eight gait parameters. We develop a gait analysis system including the sensing slippers, a sensing module for data collection and wireless communication, and an external computer with the data processing program. Moreover, we demonstrate that the proposed total gait analysis system based on the slippers with the flexible piezoelectric sensors works efficiently.",

keywords = "flexible sensor, gait analysis, piezoelectric, slipper",

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note = "Funding Information: *Corresponding author: Y. Cha (phone: +82-2-958-6949; e-mail: [email protected]) Research supported by Korea Institute of Science and Technology Institutional Program under Grant KIST 2E28250. Publisher Copyright: {\textcopyright} 2018 IEEE.; 2018 IEEE International Conference on Robotics and Biomimetics, ROBIO 2018 ; Conference date: 12-12-2018 Through 15-12-2018",

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N2 - This study introduces a gait analysis system using a pair of slippers with flexible piezoelectric sensors. We install only one flexible sensor based on polyvinylidene fluoride, which is a flexible piezoelectric material, in each slipper. The flexible sensor is positioned in the slipper sole area under the inner arch of the foot. In this position, the sensor undergoes bending for walking, and generates electrical signals through the piezoelectric characteristic. We focus on the detection of the heel strike and toe-off moments from the sensor output. We then acquire the floor contract information of the slippers from the detection and extract eight gait parameters. We develop a gait analysis system including the sensing slippers, a sensing module for data collection and wireless communication, and an external computer with the data processing program. Moreover, we demonstrate that the proposed total gait analysis system based on the slippers with the flexible piezoelectric sensors works efficiently.

AB - This study introduces a gait analysis system using a pair of slippers with flexible piezoelectric sensors. We install only one flexible sensor based on polyvinylidene fluoride, which is a flexible piezoelectric material, in each slipper. The flexible sensor is positioned in the slipper sole area under the inner arch of the foot. In this position, the sensor undergoes bending for walking, and generates electrical signals through the piezoelectric characteristic. We focus on the detection of the heel strike and toe-off moments from the sensor output. We then acquire the floor contract information of the slippers from the detection and extract eight gait parameters. We develop a gait analysis system including the sensing slippers, a sensing module for data collection and wireless communication, and an external computer with the data processing program. Moreover, we demonstrate that the proposed total gait analysis system based on the slippers with the flexible piezoelectric sensors works efficiently.

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Gait analysis system based on slippers with flexible piezoelectric sensors

Abstract

Publication series

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Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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