双通道心电信号长时间连续采集和实时分析系统

LONG TIME CONTINUOUS SAMPLING AND REAL-TIME ANALYSIS SYSTEM FOR TWO CHANNEL ECG SIONALS

基于微机实现了双通道心电信号长时间连续采集和实时分析系统，使用扩展内存实现了大量数据的连续存储，可连续采集３０分钟以上的双道信号；利用中断实现了信号的实时采集和显示，可滚动显示双道信号；可实时分析心电波形，并对异常心电进行报警。该系统为建立心电数据库研究和临床心电监护等应用提供了一个良好的工具。

a long time contintiotis sampling and real-time analysis system for two chan-tiel ECG signals was realized on microcomputer.The problem of how to save a large numberof ECG data continuously was resolved by using the expanded memory. The system couldsample and save two channel ECG signals exceeded thirty minutes. Real-time sampling anddisplay were implemented by interrupt-routine.The system could display,analyse and clas-sify ECG signals at the same time and give an alarm when abnormal ECG signal occured.This system provided a good tool for the research of establishing ECG database and the clini-cal ECG monitor.