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RBF-SVM 기반 고관절 보행 보조 외골격 로봇의 보행 모드 판단 알고리즘 개발

Development of the Algorithm of Locomotion Modes Decision based on RBF-SVM for Hip Gait Assist Robot

Journal of the Korean Society for Precision Engineering 2020;37(3):187-194.
Published online: March 1, 2020

1 한양대학교 대학원 메카트로닉스공학과

2 제조혁신기술원

3 한양대학교 로봇공학부

1 Graduate of Mechatronics Engineering, Hanyang University

2 Korea Institute of Manufacturing Innovation

3 School of Robot Engineering, Hanyang University

#E-mail: cshan@hanyang.ac.kr, TEL: +82-31-400-5247
• Received: August 27, 2019   • Revised: December 23, 2019   • Accepted: January 16, 2020

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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    Ghazaleh Khodabandelou, Huiseok Moon, Yacine Amirat, Samer Mohammed
    Engineering Applications of Artificial Intelligence.2023; 118: 105702.     CrossRef
  • Locomotion Mode Recognition Algorithm Based on Gaussian Mixture Model Using IMU Sensors
    Dongbin Shin, Seungchan Lee, Seunghoon Hwang
    Sensors.2021; 21(8): 2785.     CrossRef

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Development of the Algorithm of Locomotion Modes Decision based on RBF-SVM for Hip Gait Assist Robot
J. Korean Soc. Precis. Eng.. 2020;37(3):187-194.   Published online March 1, 2020
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Development of the Algorithm of Locomotion Modes Decision based on RBF-SVM for Hip Gait Assist Robot
J. Korean Soc. Precis. Eng.. 2020;37(3):187-194.   Published online March 1, 2020
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Development of the Algorithm of Locomotion Modes Decision based on RBF-SVM for Hip Gait Assist Robot
Image Image Image Image Image Image Image Image
Fig. 1 Gait cycle at level walking, stair ascent and stair descent
Fig. 2 The hip gait assist robot
Fig. 3 Offline training and online test algorithm
Fig. 4 Example of the collected right hip, left hip, right ankle and left ankle data when wearing the hip gait assist robot on different terrains (Left: level walking, mid: stair ascent, right: stair descent)
Fig. 5 Binary classification plot by the radial basis function-support vector machine (RBF-SVM) (Left: level walking vs. stair ascent, mid: stair ascent vs. stair descent, right: level walking vs. stair descent)
Fig. 6 Algorithm flowchart for SVM in LabVIEW
Fig. 7 Locomotion modes and walking test platform (Left: LW, mid: SA, right: SD)
Fig. 8 Locomotion modes and walking test data for LW, SA and SD (Locomotion modes: 0–ST/1–LW/2–SA/3–SD)
Development of the Algorithm of Locomotion Modes Decision based on RBF-SVM for Hip Gait Assist Robot

Confusion matrix between estimation class and actual class

Estimation class
LW (%) SA (%) SD (%)
Actual
class
LW 100 0.1 0
SA 0 99.9 0
SD 0 0 100
Table 1 Confusion matrix between estimation class and actual class