基于PDA的嵌入式ECG监护分析仪

目的为了方便快捷地实时监测心律失常,设计一种基于PDA的嵌入式ECG监护分析仪。方法仪器功能包括低功耗MSP430系列单片机控制心电信号的采集、放大、滤波、转换和在PDA上实时显示、存储和分析,并实现心电数据的远程传输。对仪器工作原理进行分析,把监护分析仪总体结构划分为子模块,并具体介绍各子模块的功能与实现。结果与结论与医院现有的三导全自动心电图机、Holter动态心电图机进行对照,本监护分析仪携带方便、操作简单、接收的心电信号无失真,连续工作时间大于20h等。各高频干扰信号对ECG信号无影响;软件可对心电信号进行实时显示,可连续记录15h的原始心电数据。

Embedded ECG Monitoring Analyzer Based on PDA

Objective To design an embedded ECG monitoring analyzer based on personal digital assistant(PDA) for achieving convenient and rapid real-time monitoring of arrhythmia. Methods The function of this analyzer included ECG signal collecting, amplifying, filtering and transforming, which were controlled by the low-power-consumed MSP430 series. Moreover it could achieve real-time displaying, storage and analysis and remote transporting of ECG signal on the PDA. The working principle of this analyzer was analyzed and the whole structure was divided into several sub-modules,then functions and processing of all sub-modules in detail were introduced. Results and Conclusion Compared with ECG and Holter,it is an convenient apparatus. It can work continuously for over 20 hours. The high freguency signs are shielded,and ECG is not affected. ECG signs can be recorded and displayed continuously in real-time by the software for 15 hours.