从微处理器控制的膝关节假肢嵌入式传感器的振动反的开发和评估
Romain Valette1, Jose Gonzalez-Vargas2, Strahinja Dosen3
1Department of Health Science and Technology, Aalborg University, Aalborg, Denmark.
Journal of neuroengineering and rehabilitation
|December 19, 2025
概括
这项研究比较了下肢假肢用户的振动反位置,发现虽然腰部位置提供了更好的感知,但插座集成的反减少了认知负载,并被用户更喜欢. 这凸显了以用户为中心的设计在开发有效的感官反系统中的重要性.
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
- 人与计算机的交互
背景情况:
- 人工感官反增强了下肢假肢用户的功能和用户体验.
- 非侵入性振动刺激提供了没有手术的临床方便.
- 现有的研究通常在受控条件下评估单个反方法.
研究的目的:
- 为在日常活动中使用微处理器控制的假肢 (MP) 传感器比较多种反方法提供灵活的框架.
- 为了研究感知质量和反位置的紧性 (腰与插座) 之间的权衡.
- 评估不同类型的反对假肢使用者的步态,认知负载和体验的影响.
主要方法:
- 十名身体健康的参与者和一名腿部截肢 (TFA) 用户测试了腰部 ("皮带") 和位配置的反.
- 使用感觉值 (ST),韦伯分数 (WF) 和空间歧视 (SD) 评估感知.
- 通过四种反方法,TFA完成了行走和爬楼梯的任务:膝盖角度,混合,缓冲 (MP传感器) 和力 (内底传感器).
主要成果:
- 与"插座"配置相比",皮带"配置显示出明显更好的感知 (较低的ST,WF,更好的SD) 和舒适度.
- 反对动力学对称度的影响最小,但稍微改善了立场时间/百分比对称度,力反是最一致的.
- 腿骨外截肢 (TFA) 用户更喜欢反,特别是强力和缓冲,这降低了认知负载,这表明内在假肢反有助于步行.
结论:
- 嵌入式MP传感器可提供灵活,紧的反解决方案,将内部信号与外部传感集成.
- 带式振动电机对于测试复杂的反编码方案非常有效.
- 应与用户共同开发反系统,平衡客观绩效与主观经验.
相关概念视频
01:26Feedback control systems
805
Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
805
01:19Electro-mechanical Systems
1.3K
Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
1.3K
01:26PD Controller: Design
763
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
763