基于STM32F103的自主肌电控制功能性电刺激的研究与设计  

Research and Design of Functional Electrical Stimulation for Autonomous Myoelectric Control Based on STM32F103

作　　者：陈鑫政 李文渊[1] 王志功[1] CHEN Xinzheng;LI Wenyuan;WANG Zhigong(School of Information Science and Engineering,Southeast University,Nanjing Jiangsu 210096,China)

机构地区：[1]东南大学信息科学与工程学院,江苏南京210096

出　　处：《电子器件》2023年第1期46-51,共6页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(61874024);江苏省研究生科研与实践创新计划项项目。

摘　　要：为解决不同患者对于功能性电刺激强度的适应能力和肢体角度的控制,设计了一款自主肌电控制功能性电刺激。该系统以STM32F103为开发平台,对肌电信号进行采集和刺激输出控制。硬件电路包含运算放大电路、全波整流电路、有源滤波电路和电流镜电路等。软件实现通过STM32F103的直接寄存器访问技术、数模转换模块和模数转换模块进行肌电信号峰值探测和刺激信号输出强度控制。测试表明:该系统能够实现肌电峰值探测,并使用肌电信号峰值控制刺激信号动态输出。An autonomous EMG-controlled functional electrical stimulation(FES)is designed to address the adaptability of different pa-tients to the FES intensity and the control of limb angle.STM32F103 is used as the development platform for the acquisition of EMG signals and stimulation output control.The hardware circuit contains an operational amplifier,a full-wave rectifier,an active filter,and a current mirror.The software fultils the detection of the EMG signal and the control of the stimulation output intensity through the DMA,ADC and DAC of STM32F103.Tests show that the system can achieve EMG signal detection and the control of the dynamic output of stimulation signal using the peak EMG signal.

关 键 词：自主肌电控制 功能性电刺激 STM32F103 全波整流电路 肌电峰值 

分 类 号：TN43[电子电信—微电子学与固体电子学] Q64[生物学—生物物理学]