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논문 기본 정보

자료유형
학술저널
저자정보
Jiho Noh (한동대학교) Woorim Cho (한동대학교) Jae-Hyo Kim (한동대학교)
저널정보
Korean Society for Precision Engineering Journal of the Korean Society for Precision Engineering Journal of the Korean Society for Precision Engineering Vol.35 No.8
발행연도
2018.8
수록면
809 - 816 (8page)
DOI
10.7736/KSPE.2018.35.8.809

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초록· 키워드

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Conventional prosthetic hands require users to activate designated muscles or press buttons to select among predefined grasping patterns. These methods are time-consuming and increase muscle fatigue. This study proposes a regression model that differentiates multiple muscle activation patterns allowing the user to select a desired grasping pattern. We classified four hand primitives and three force intensities, which can reflect the intention of prosthetic hand users. An 8-channel band-type sEMG sensor was used to measure myoelectric signals from an amputated upper-arm. To acquire the sEMG data, the amputee was instructed to imagine four hand primitives (fist, open hand, flexion, and extension) with three levels of force intensity (low, medium, and high). Time-domain features (mean average value, variance, waveform length, and root mean square) were extracted from the sEMG signal and classified using a Support Vector Machine. The hand primitives and force intensities had accuracies of 95% and 90%, respectively. Results indicate the regression model reflected the user’s intention to select different grasping patterns, and is thus expected to improve the quality of life of amputees.

목차

1. Introduction
2. Materials & Methodologies
3. Experiments
4. Result and Discussion
5. Conclusion
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