用Visual Basic实现智能仪表的微机串口连续监测与记录系统

A Sequential Inspecting and Recording System of Intelligent Instument with Serial Port of PC Using Visual Basic

简要介绍了Visual Basic中MSComm控件的使用方法、智能仪表的串行通信接口,并详细描述了由传感器、智能仪表、转接卡和微机组成的连续监测与记录系统的组成,以及系统软件的编程方法。该系统可实现多个传感器采样率10 Hz以下的长时间连续采集与记录。

This article,introduces the attributes and direction of MSComm control in the software of Visual Basic,and the port for serial communication in intelligent instrument. Also it describes a sequential inspecting and recording system composed of sensor,intelligent instrument,commutator and P（＂ computer with serial communication. The system can inspect and record signals from multi- sensor under the sampling frequency below 10 Hz for several days.