基于虚拟仪器技术的心电信号采集与分析系统

ECG Acquisition and Analysis System Based on Virtual Instrument Technology

目的:设计开发一种基于虚拟仪器技术的心电信号采集与分析系统。方法:将心电电极拾取的心电信号,由导联经信号调理电路放大滤波后,利用NI 6210数据采集卡,通过LabVIEW软件编程实现心电信号的采集、处理与分析。结果:该系统可实现标准III导联心电信号的采集、显示、存储和心电信号的预处理、QRS波检测及HVR分析等。结论:利用虚拟仪器技术能够方便、灵活地设计功能强大、扩展性强的医学仪器。

Objective To develop an ECG acquisition and analysis system based on virtual instrument technology.Methods Firstly,ECG electrodes picked up the signal,and then the leads sent the signal to the conditioning circuit.After being amplified and filtered,ECG signal was collected using NI6210 data acquisition card.Finally,signal processing and analysis were realized by LabVIEW software.Results The system could finish the standard Ⅲ ECG signal acquisition,display,storage,ECG signal processing,QRS detection and HVR analysis.Conclusion It is easy to design flexible,powerful and extensible medical instrument based on virtual instrument technology.