基于LabVIEW和嵌入式技术的7导联心电信号采集系统设计

7-Lead Electrocardiogram Signal Acquisition System Based on LabVIEW

基于Lab VIEW虚拟软件和嵌入式技术设计了一款7导联心电信号高精度采集系统。心电信号通过与肢体接触的5个电极夹进行原始信息获取,再通过ADS1298模拟前端进行滤波、放大等硬件处理后,进入STM32F103微处理器进行软件处理,最后采用USB或蓝牙两种通讯方式上传至显示端。显示端基于Lab VIEW虚拟软件平台采用小波变换去噪算法对心电信号进行软件滤波,可以实现对心电信号实时监护,也可以将心电数据保存或打印。该心电信号采集系统具有体积小,重量轻,功耗低,精度高等特点。

A 7-lead electrocardiogram （ECG） signal high-accurary acquisition system based on LabVIEW and embedded technology is designed in this paper.Through the five electrodes which contacting with limbs,ECG signal is acquired.And then through the ADS1298 analog front-end filtering,amplification and other hardware processing,ECG signal enters the STM32F103 microprocessor for software processing.At last,the device uploads ECG signal to the display terminal using USB or Bluetooth two communication modes.