一个圆形的,无线的表面电心图阵列
Kenneth Deprez1, Eliah De Baecke1, Mauranne Tijskens1
1Department of Information Technology, imec, Ghent University, 9052 Ghent, Belgium.
Sensors (Basel, Switzerland)
|February 24, 2024
概括
这项研究引入了一种负担得起的无线表面电肌图 (sEMG) 阵列,用于假肢控制. 该系统准确地捕获肌肉信号,使截肢者能够精确地识别手势.
科学领域:
- 生物医学工程 生物医学工程
- 康复技术 康复技术 康复技术
- 可穿戴式传感器 穿戴式传感器
背景情况:
- 高科技的上肢假肢是昂贵的,许多截肢者无法获得.
- 目前的表面电肌图 (sEMG) 控制方法要么不准确,要么由于布线而繁.
- 需要价格实惠,可访问和用户友好的假肢控制系统.
研究的目的:
- 开发一种新的,圆形的,无线的sEMG阵列,以改善假肢控制.
- 为商业假肢创建一个可访问,开源和3D打印的替代方案.
- 为了提高肌电假肢的精度和功能.
主要方法:
- 开发一个模块化,圆形,无线sEMG阵列与分布式电极.
- 将蓝牙低能耗,运动传感器和电池集成到sEMG系统中.
- 使用20个参考手势,将开发的系统与商用有线sEMG设备进行基准测试.
主要成果:
- 与商业系统相比,无线sEMG阵列表现出高精度,具有斯皮尔曼相关性 (r = 0.98,p < 0.01).
- 跨阵列节点的非相关的sEMG信号幅度表示独立的信息,用于增强的手势识别.
- 一个随机的森林分类器在使用开发的系统时,在区分6种手势方面取得了97%的准确性.
结论:
- 开发的无线sEMG阵列为假肢控制提供了准确有效的解决方案.
- 这项技术有可能通过提供可访问的高性能假肢来显著改善截肢者的生活质量.
- 该系统的模块化和无线性质克服了现有的sEMG控制方法的局限性.
相关概念视频
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