一种多路数据采集系统通信模块设计

A design of communication module for a multi-channel data acquisition system

本设计主要讲述了PC机与AT89C51单片机之间的串口通信的设计。由单片机采集信号,将信号传送给PC机显示,PC机程序用VB编写,单片机程序用C语言编写,最后用Proteus软件进行仿真实现串口通信。根据串口通信原理建立的PC机与单片机间的通信协议,利用VB对采集到的信号进行接收和描述,并将其显示在可视的VB界面当中。该数据采集系统还具有存储并形成数据曲线的功能,以便对信号进行分析和处理。

The thesis describes a design of serial communication between PC and AT89C51. The signals collected by AT89C51 microcontroller are transmitted and shown through PC; the program of PC is written with VB,and that of the microcontroller with C programming language. At last the serial communication is accomplished through simulation by Proteus.Based on the communication protocol between PC and AT89C51 microcontroller established on the theory of serial communication,the signals collected are accepted and described by VB and shown on the screen. The data collection system also has the function of storing and forming data curves,so as to analyze and process signal data.