[说明]虚拟仪器论文：虚拟心电图仪的设计

[说明]虚拟仪器论文：虚拟心电图仪的设计 虚拟仪器论文:虚拟心电图仪的设计 【中文摘要】虚拟医学仪器是基于计算机软、硬件相结合的医学仪器,它是随着计算机技术、现代医学测量技术发展而发展起来的一种新型高科技产品,代表着当今医学仪器发展的最新趋势。本文通过对心电图机的国内外发展现状和虚拟仪器技术的发展趋势这两方面的分析了解,根据现代虚拟医学仪器的特点,开发了基于Lab-VIEW平台的虚拟心电图仪系统。本文首先根据心电信号的特点进行硬件采集电路设计。其中包括右腿驱动电路的设计、心电信号放大、滤波三个部分。心电信号放大电路又分为前置级放大和后级放大两级放大电路。滤波电路分别为高通滤波、50Hz陷波滤波器和四阶巴特沃兹滤波器。然后,通过数据采集卡将心电信号采集到计算机上,基于计算机上的Lab-VIEW软件对心电信号进行分析、波形显示、心率监测和结果存储等一系列图形化设计,同时在心率异常的情况下自动发出报警声音,因此管理者可以实时监测被测者的心率变化情况,并可以作出及时的诊断。最后基于现在的网络通信系统来实现异地查看、监测受检者的心电情况。本文中实现了通过共享变量技术在局域网中的数据传输、通过Datasocket技术进行远程数据采集与传输以及采用Web服务器通过网页浏览进行异地用户的监测。最终形成操作简单、界面生动形象的虚拟心电图仪测试系统。 【英文摘要】Virtual medical instrument is based on computer software and hardware combination of medical instruments, it is with the computer technology, the development of modern medical measurement technology developed a new type of high-tech products, medical equipment represents the latest development of today’s trends.Based on the ECG machine at home and abroad of virtual instrument technology development status and trends analysis to understand these two aspects, according to the characteristics of modern virtual medical instrument, developed based on the Lab-VIEW platform for virtual ECG system.Firstly, according to the characteristics of the ECG signal acquisition hardware platform. These include the right leg drive circuit design, ECG signal amplification, filtering three parts. ECG pre-amplifier circuit is divided into grade levels, amplification and post amplification stage amplifier circuit. Filter circuit low pass filter, respectively,50Hz notch filter and four-order Butterworth filter.Then, the ECG data acquisition card will be collected to the computer, computer-based Lab-VIEW software on the ECG waveform display, heart rate monitoring and the results of storage and a series of graphic design, while in the case of abnormal heart rate Automatic alarm sounds, Therefore, managers can be measured by real-time monitoring of heart rate changes in circumstances, and can make timely diagnosis.Finally, based on the current network communication system to achieve remote viewing, subjects with ECG monitoring the situation. This is implemented through shared variables in the LAN data transmission technology via Datasocket remote data acquisition and transmission and the use of Web servers for remote users through the web browser monitoring. Eventually form a simple, vivid image of the virtual interface ECG Test System. 【关键词】虚拟仪器 Lab-VIEW 心电信号 网络通信 【英文关键词】Virtual Instruments Lab-VIEW ECG network communication 【目录】虚拟心电图仪的设计 摘要 4-5 Abstract 5 目录 6-7 第一章 绪论 7-12 1.1 引言 7 1.2 课 题 快递公司问题件快递公司问题件货款处理关于圆的周长面积重点题型关于解方程组的题及答案关于南海问题 研究背景 7-10 1.3 本文的研究内容 10-11 1.4 本文的章节安排 11-12 第 二章 虚拟仪器 12-18 2.1 虚拟仪器技术概述 12-14 2.2 图形化虚拟仪器开发平台—— Lab-VIEW 14-17 2.3 本章小结 17-18 第三章 心电采集 硬件平台设计 18-32 3.1 硬件平台的组成 18-19 3.2 心电信号检测的硬件设计 19-27 3.3 数据采集部分 27-31 3.4 本章小结 31-32 第四章 虚拟心电图仪软件 设计 32-48 4.1 系统软件设计 32-33 4.2 各模块子程 序设计原理 33-41 4.3 数据库管理系统 41-47 4.4 本 章小结 47-48 第五章 网络通信系统的实现 48-63 5.1 网络通信系统(即远程传输)的意义及其实现方法 48-49 5.2 共享变量 49-51 5.3 DataSocket 51-55 5.4 远程?面 板连接 55-62 5.5 本章小结 62-63 结论 63-64 致谢 64-65 参考文献 65-66