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Application of wireless, embedded microcontroller circuit for a semi-active above-knee prosthesis with pneumatic cylinder

机译：无线，嵌入式微控制器电路在气动缸中的半活跃上膝关节假体

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摘要

This study presents the embedded microcontoller of data acquisition unit, performance analysis, and wireless data transfer capability of the semi active above knee joint with pneumatic cylinder developed in Hacettepe University Biomedical Research Laboratory. For this purpose an embedded microcontroller based data acquisition card has been designed and programmed in order to have an adaptive capability for coping with different phases of the gait. This prosthesis also responses the instantaneous gait velocity alterations and it adjusts the damping variable of the pneumatic cylinder via a stepper motor. System detects the related gait phases and gait velocities from the signal of inertial measurement unit (IMU). Printed board tests and gait performance evaluation tests are conducted with associated Bluetooth wireless transfer unit. It has been shown that the kinematic variables have been measured and analyzed successfully by this embedded wireless system.
机译：本研究介绍了在Hacettepe大学生物医学研究实验室中发育了气动气缸的半主体的数据采集单元，性能分析和无线数据传输能力的嵌入式微直接。为此目的，已经设计和编程了基于嵌入的微控制器的数据采集卡，以便具有应对步态的不同阶段的自适应能力。该假体还响应瞬时步态速度改变，并且它通过步进电机调节气动缸的阻尼变量。系统检测相关的步态阶段和来自惯性测量单元（IMU）的信号的步态速度。印刷电路板测试和步态性能评估测试用相关的蓝牙无线传输单元进行。已经表明，通过该嵌入式无线系统成功地测量和分析了运动变量。

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