基于LabVIEW的无线sEMG采集系统设计  

Design of Wireless sEMG Acquisition System Based on LabVIEW

作　　者：王锋[1] 宫玉琳[1] 胡命嘉 WANG Feng;GONG Yulin;HU Mingjia(School of Electronics and Information Engineering,Changchun University of Science and Technology,Changchun 130022)

机构地区：[1]长春理工大学电子信息工程学院

出　　处：《长春理工大学学报（自然科学版）》2019年第4期98-101,107,共5页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：吉林省科技厅项目(20190303080)

摘　　要：表面肌电信号(surface electromyography,sEMG)是肌肉运动时所产生的电信号,虽然比较微弱,但是具有很强的规律性,是现代康复医疗和人机交互等领域中重要的研究内容。设计了一套基于LabVIEW的无线sEMG采集系统,主要由信号的采集、无线传输和用LabVIEW设计的sEMG数据分析平台三部分构成[1]。采用贴片电极、差分处理电路和数字滤波算法,有效降低了噪声干扰。使用蓝牙作为通信方式,提高了硬件采集部分的便携性、易穿戴性。LabVIEW上位机能直观的将采集到的sEMG数据以波形图的形式显示出来,在数据分析部分,采用LabVIEW与MATLAB混合编程的方法,把MATLAB的数据分析算法嵌入到了LabVIEW接口中。最终能够实现微弱的sEMG的采集以及数据显示、分析,能识别出肌肉每次收缩运动的起止时间点和运动强度等信息。Surface electromyography(sEMG)is an electrical signal produced by muscle movement.Although it is weak,it has strong regularity and is an important research content in modern rehabilitation medicine and human-computer interaction.A wireless sEMG acquisition system based on LabVIEW is designed,which consists of signal acquisition,wireless transmission and sEMG data analysis platform designed by LabVIEW.The patch electrode,differential processing circuit and digital filtering algorithm are used to effectively reduce noise interference.Bluetooth is used as a communication mode to improve the portability and wearability of the hardware acquisition part.LabVIEW upper computer can intuitively display the collected sEMG data in the form of waveforms.In the data analysis part,the data analysis algorithm of MATLAB is embedded in the LabVIEW interface by using the method of mixed programming of LabVIEW and MATLAB.Finally,weak sEMG data acquisition,data display and analysis can be achieved,the starting and ending time and intensity of each muscle contraction can be identified.

关 键 词：SEMG 蓝牙 LABVIEW 数据分析 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]