心电模拟波形发生系统的设计  

Design of ECG Simulation Waveform Generating System

作　　者：田大军[1] 张子明[1] 施远征[1] 苏文娟[1] 杨廷雷[1] 

机构地区：[1]北京工业大学电子信息与控制工程学院,北京100124

出　　处：《现代电子技术》2010年第9期141-144,共4页Modern Electronics Technique

摘　　要：以32位低功耗的ARM9微处理器为核心,移植了嵌入式Linux操作系统设计的一个心电模拟波形发生系统,实现了心电信号的实时采集和波形显示功能。Qt是KDE等项目使用的GUI支持库,所以许多基于Qt的X Window程序也可以非常方便地移植到Qt/Embedded版本上,因此系统采用Qt进行软件界面的开发。该系统设计主要包括ARM9处理器、信号采集模块、D/A转换模块、右腿驱动、低通滤波等模块。采用嵌入式Linux操作系统作为软件开发平台,充分利用ARM9的高效性和低功耗性能,很好地模拟正常的人体除颤的过程,并且能够模拟34种常见的异常心电波形,输出波形都达到了医学相关要求。In the system which uses 32 bit low-power ARM9 microprocessor as its core,an embedded Linux operating system is transplanted to form the ECG waveform generation system to realize the real-time ECG acquisition and waveform display.Since Qt is a GUI support library used by KDE and other projects,many X Window programs based on Qt can also be easily ported to Qt/Embedded version.Therefore,the system uses Qt to develop the software interface.The system design includes ARM9 processor,the signal acquisition module,D/A conversion module,right leg drive,low-pass filtering module.The system taking an embedded Linux operating system as a software development platform,make full use of high-perfor-mance ARM9 and low-power performance,and can perfectly simulate the normal human defibrillation process and 34 kinds of common abnormal ECG waveform.Its output waveform has met the relevant requirements of medicine.

关 键 词：LINUX操作系统 心电模拟 心电信号 右腿驱动 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]