一种用于监测手部灵活性和皮肤电活动的治疗性压力球
A Therapeutic Stress Ball to Monitor Hand Dexterity and Electrodermal Activity
摘要：
这项工作提出了一种基于摩擦电纳米发电机（TENG）的治疗压力球，为需要不同程度物理治疗的患者提供手势监测和生理数据。该设备利用5层硅树脂和编织的镀银尼龙绳电极来创建传感器网络，该传感器网络监测半球形原型表面的40个点。利用标准ECG电路的修改版本来提供TENG信号的适当加载、噪声抑制、滤波和相位以及多个电极的复用。所有系统组件的选择都考虑到了最终的嵌入式系统。使用Arduino Uno和EVAL-AD 5940 BIOZ评估板对器械进行了测试，以评估运动后压力和/或疼痛的皮电活动。包括用于设备激活和手部震颤检测的加速度计。在测试时，自供电TENG传感器在接触时产生正脉冲，在从球表面释放接触时产生负脉冲。此外，通过在我们的调节电路中保持双极信号来捕获相关的负脉冲，证明了手指移除检测。EDA结果表明，镀银尼龙是一种潜在的良好干电极，可与更多电极一起用于生物阻抗或ECG捕获，以进一步扩展设备功能。设计了一个基于MATLAB的GUI，通过与微控制器的串行通信，为用户提供数据跟踪和数据的可视化监控。最后，应当注意，这提供了一种用于低成本低功率手势跟踪的手段，而不使用柔性电容网格阵列，并且由于其独特的材料设计，为用户提供了人们期望形成压力球的愉快的触觉体验。
英文摘要：
This work presents a triboelectric nanogenerator-based (TENG) therapeutic stress ball to provide gesture monitoring and physiological data on patients requiring physical therapy of various degrees. The device utilizes a 5-layer stack of silicone and braided silver-coated nylon rope electrodes to create a sensor network that monitors 40-points across the surface of a semi-spherical prototype. A modified version of a standard ECG circuit was utilized to provide proper loading, noise rejection, filtering, and phase of the TENG signals along with multiplexing of the many electrodes. All system components were selected with a final embedded system in mind. Testing of the device was conducted utilizing an Arduino Uno and an EVAL-AD5940BIOZ evaluation board for electrodermal activity for stress and/or pain after exercise. An accelerometer was included for device activation and hand tremor detection. Upon testing, the self-powered TENG sensors produce positive impulses upon contact and negative impulses upon release of contact from the surface of the ball. Furthermore, finger removal detection was demonstrated by capturing the associated negative impulse by maintaining the bipolar signal in our conditioning circuit. EDA results indicate silver-coated nylon as a potentially good dry-electrode which can be used with even more electrodes for bio-impedance or ECG capture to further expand the device functionality. A MATLAB-based GUI was designed to provide the user with data tracking and visual monitoring of the data via serial communication from the microcontrollers. Finally, it should be noted that this provides a means for low-cost low-power gesture tracking without the use of flexible capacitive grid arrays and provides the user with a pleasant tactile experience that one expects form a stress ball due to its unique material design.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
