摘要
介绍了一种基于虚拟仪器的电脑胎儿心电图系统。该系统由两部分组成:以PIC单片机为核心硬件的数据采集装置和PC平台的处理分析系统。硬件电路功耗低,直接采用端口供电。软件平台采用可视化语言LabView6.1编程实现,由于使用其大量成熟软件模块,大大提高了开发效率。介绍了LabView实现的匹配滤波器等算法,并改进了匹配滤波的模板更新方法。临床试用取得了满意效果。
A computerized fetal ECG(FECG)system is presented,w hi ch is composed of two components.One is the data collection device with a PIC m icrocomputer as the main hardware,which has low power consumption and gets power supply through serial port.The other is a software platform based on PC,which i s built through LabView6.1,a graphic programming language.Plenty of modules prov ided by LabView6.1utilized,it is efficient to develop the software platform.In particular,the implementation of the matched filtering algorithms is introduced ,which is the core of the software platform.A new method of updating templates o f matched filter is described.
出处
《医疗卫生装备》
CAS
2003年第12期19-21,共3页
Chinese Medical Equipment Journal
基金
广州市资助
