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A Wearable Flow-MIMU Device for Monitoring Human Dynamic Motion.
IEEE Transactions on Neural Systems and Rehabilitation Engineering ( IF 4.9 ) Pub Date : 2020-02-05 , DOI: 10.1109/tnsre.2020.2971762
Shi Qiang Liu , Jun Chang Zhang , Guo Zhen Li , Rong Zhu

For personalized rehabilitation or sports training, it is necessary to monitor dynamic motions and track postures of human body and limbs. Traditional methods using micro inertial sensors usually suffer from drift problems in tracking dynamic motions. In this paper, a wearable flow-MIMU human motion capture device is proposed by incorporating micro flow sensor with micro inertial measurement unit (MIMU). Motion velocity is detected by a micro flow sensor and utilized to figure out the motion acceleration. The gravity accelerations are extracted by eliminating the motion accelerations from the accelerometer outputs. Finally, posture estimation is implemented by using a tailor-designed Kalman-based data fusion of the gyroscope outputs and the extracted gravity accelerations. The flow-MIMU device with wireless communication is designed like a watch to be wearable. Experimental results validate that the motion velocity, acceleration and posture of human limb are determined accurately and free of accumulative error in monitoring of dynamic motions using the proposed method. The wearable flow-MIMU device provides an advantageous monitoring approach for applications of personalized rehabilitation, sports training, intelligent prosthetics, etc.

中文翻译:

用于监测人体动态运动的可穿戴Flow-MIMU设备。

对于个性化的康复或运动训练,有必要监视动态运动并跟踪人体和四肢的姿势。使用微惯性传感器的传统方法通常会在跟踪动态运动时遇到漂移问题。通过将微流量传感器与微惯性测量单元(MIMU)结合起来,提出了一种可穿戴式MIMU人体运动捕捉设备。运动速度由微流量传感器检测,并用于计算运动加速度。通过消除加速度计输出的运动加速度来提取重力加速度。最后,通过使用特制设计的基于陀螺仪输出和提取的重力加速度的基于卡尔曼的数据融合来实现姿态估计。具有无线通信功能的flow-MIMU设备设计得像手表一样可穿戴。实验结果证明,该方法可以准确地确定人体肢体的运动速度,加速度和姿势,并且在动态运动监测中没有累积误差。可穿戴式Flow-MIMU设备为个性化康复,运动训练,智能修复等应用提供了一种有利的监控方法。
更新日期:2020-03-20
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