摘 要：
虚拟仪器的技术基础是计算机技术，核心是计算机软件技术。其中最有代表性的图形化编程软件是美国NI公司推出的Labview(laboratory virtual instrument engineering workbench即实验室虚拟仪器工作平台)。它是世界上第一个采用图形化编程技术的面向仪器的32位编译型程序开发系统，它的目标就是简化程序的开发工作，提高编程效率，让科学家和工程技术人员充分利用计算机的资源和强大功能，快速简捷地完成自己的工作任务，它被称为科学家与工程师的语言。
本文利用具有直观图形化编程和强大数字信号处理功能的虚拟仪器编程语言LabVIEW为开发平台，研制了一套虚拟心电信号和脉搏信号采集、记录系统。并且能利用互联网将采集的数据上传到服务器进行显示储存和信号处理。
关键词：心电信号, LabVIEW, 虚拟仪器, 数据采集
The Acquisition System of Physiological Parameters Based on Labivew
Abstract: The technology of virtual instrument based on computer technology, computer software technology is the core. One of the most representative of the graphical programming software is NI Introduces the United States of Labview (laboratory virtual instrument engineering workbench or working platform Virtual Instrument Laboratory). It is the world's first use of graphical programming technology equipment for the 32-bit compiler-based development system, its goal is to simplify the development process to improve the programming efficiency, let scientists and engineers make full use of computer resources and power, fast simple to complete their tasks, it is known as the language of scientists and engineers.
In this paper, with an intuitive graphical programming and a powerful digital signal processing function of the programming language LabVIEW virtual instrument development platform for the development of a set of virtual ECG signal acquisition and pulse recording system..And use of the Internet will be able to collect the data uploaded to the server for storage and displaysignal processing.
Keyword: ECG, Labivew,virtual instrument,data collect
目 录
一．系统总体方案设计 1
（一）系统框图及其模块组成结构 1
（二）系统工作原理 1
二．硬件电路设计 2
（一）单片机系统硬件电路 2
（二）串口转USB 3
（三）A/D采样硬件电路 4
三．程序设计 8
（一）labview介绍 8
（二）串口通信人机交互前面板设计 9
（三）串口通信程序设计 10
（1）仪器驱动程序 10
（2）VISA驱动 11
（四）远程控制前面板设计 15
（五）远程控制程序设计 17
（1）远程控制程序框图 17
（2）通信模块介绍 17
（3）程序框图 18
四．实验测试 20
（一）单片机信号采集系统调试 20
（二）labview信号采集与显示系统调试 20
五．结论与展望 22
致 谢 23
英文译文 26
附录A 单片机程序 1
附录B譆@绦蚩蛲 3
