摘要
作为计算机和网络技术与传统仪器融合的产物,虚拟仪器具有很多传统仪器无法比拟的优势。以NI公司的LabVIEW为开发平台,本文设计了一个低成本的虚拟心电信号采集系统。该系统摈弃了传统虚拟仪器的前端数据采集卡,而自行开发了以单片机技术为硬件基础的前端数据采集卡,从而有效地降低了成本;以LabVIEW8.2作为该系统仪器面板的软件编程语言,又可缩短开发时间。经实验室使用验证,该系统可实现对心电信号的实时采集、显示和存储,而且性能可靠,工作稳定,成本又大大地降低。
As a fusion product of computer, network technique and traditional instrument, virtual instrument has many incomparable advantages over traditional instrument. Taking NI Company＇s LabVIEW as the development platform, an electrocardiogram （ECG） acquisition system was developed using virtual instrument technology at low cost. Mierocontroller technology was selected as the hardware base to construct the data-acquisition board to replace traditional front-end data-acquisition card and LabVIEW 8.2 was used as the software development language to create the instrument front panels, which can effectively reduce the development time. Practical laboratory tests verify that this system can acquire, display and store ECG signal in real time, and the performance and working stability of the system is dependable. This study demonstrates that a LabVIEW-based medical virtual instrument provides a low-cost and flexible solution for ECG signal acquisition.
出处
《电子测量与仪器学报》
CSCD
2008年第5期107-111,共5页
Journal of Electronic Measurement and Instrumentation
基金
江苏省"青蓝工程"中青年学术带头人项目资助
关键词
心电
单片机
信号采集系统
虚拟仪器
electrocardiogram （ECG）, microcontroller, signal acquisition system, virtual instrument （VI）.
