Design and Implementation of A Power Control System for Muscle Strength Training Device
LIN Xin1,2，LI Yurong1,2，CHEN Jianguo1,2
1. College of Electrical Engineering and Automation, Fuzhou University, Fuzhou Fujian 350108, China丨
2. Fujian Key Lab of Medical Instrument and Pharmaceutical Technology, Fuzhou Fujian 350108, China
Abstract：Objective To design a muscle strength training equipment to improve muscle strength and promote the rehabilitation of
motor function in patients with limb disorders. Methods Used the upper computer based on JAVA to set the training parameters,
and sent these data to STM32 through serial communication. Then used STM32 to control servo driver and motor to complete the
training. Torque sensor and angle sensor were also added to collect the torque and angle in the training process and send them to
the upper computer for display. The function of the control system was tested by installing elbow bracket. Results In isometric
training, the bracket can maintain the position and measure joint torques. In isotonic training, when the joint torque is greater than the
resistance moment, the bracket starts moving. When the joint torque is less than the resistance moment, the bracket stops moving. In
the isokinetic and passive training, the bracket can maintain a constant speed and the error is within a reasonable range. Conclusion The test
results show that the power control system has a good control effect, can realize four training modes, and can be applied to clinical
rehabilitation later.
林鑫1,2，李玉榕1,2，陈建国1,2. 一种肌力训练设备的动力控制系统设计与实现[J]. 中国医疗设备, 2021, 36(11): 40-45.
LIN Xin1,2，LI Yurong1,2，CHEN Jianguo1,2. Design and Implementation of A Power Control System for Muscle Strength Training Device. China Medical Devices, 2021, 36(11): 40-45.
