为了实现同步同时观察左、右心室正后壁的情况，解决动态心电图改变长时间同步监测难问题，本文介绍了一种18导联心电监测系统。心电信号经过调理电路送入心电图（ECG）模拟前端ADAS1000芯片，MSP430控制器经SPI接口实现与心电图模拟前端的通讯，并对数据进行分析处理，在上位机MATLAB软件上显示相应的波形。基于ADAS1000的18导联心电仪的导联功耗不大于15 mW，且导联同时工作的功耗不大于100 mW，实现了全天24小时的实时监测，以200 Hz的采样频率检测出不同人群，不同情况下的心电信号波形，获得全面的动态心电资料且成本低廉，在冠心病、心肌缺血、心律失常诊断中具有一定的实用和市场价值。%In order to observe the state of the posterior wall in the right and left ventricles in the circumstances of synchronization ,and solve the problem that it is difficult to monitor the dynamic electrocardiogram (ECG) changes for a long time and at the same time caused by the ischemia, damage and necrosis in left ventricle back wall and right ventricle myocardium ,topic of this paper is to design a eighteen leads' acquisition system for monitoring electrocardiogram changes. ECG signal through conditioning circuit into the electrocardiogram (ECG) ADAS1000 analog front end chip, MSP430 controller with SPI interface and ECG analog front end of communication, and the data were analyzed, the corresponding waveforms are displayed on the PC MATLAB software. 18 lead ECG lead power based on ADAS1000 is not more than 15mW, power consumption and lead to work at the same time is not more than 100mW, to achieve real-time monitoring for 24 hours a day, with the sampling frequency of 200 Hz detected in different populations, ECG waveforms under different conditions, obtain the comprehensive dynamic ECG data and low cost, has a certain the utility and market value in coronary heart disease, myocardial ischemia, arrhythmia diagnosis.
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