基于串行通信接口的虚拟仪器在医疗仪器上的应用

The Application of Virtual Instrument Design on Medical Device Using Serial Interface

本文介绍了一个基于串行通信接口的虚拟仪器在医疗仪器方面的应用,本系统主要用于胎儿心电信号监测。系统由两部分组成:以51单片机为核心硬件的数据采集装置和PC平台上的软件分析系统,单片机与PC机的串行通信采用RS232接口,软件采用LabVIEW7.0开发平台编程实现。实验测试结果证明,这种方法性能稳定、测量精度高。

This paper introduces the application of a virtual instrument based on serial communication interface on medical device aiming for monitoring the fetus heart electric signal. The system consists of two parts： data acquisition panel cored with MCS-51 Single chip microcontroller and a software analysis system. Single chip microcontroller communications with PC through RS232 and the software is based on LabVIEW7 development tools. The test results showed that the performance is stable and the precision is high.