多通道数据采集系统的设计与仿真

Design and Simulation of Multi-channel Data Acquisition System

文章设计了一款可以同时采集八通道电压的数据采集系统,给出了下位机和上位机系统的设计方案和步骤。为了测试系统的可靠性,利用交互式电路仿真软件Proteus仿真下位机的运行,采用图形化编程语言LabVIEW环境编程实现上位机对下位机数据的采集显示,最后借助于虚拟串口软件,实现在纯软环境下的串行通信。

A data acquisition system that can be applied to acquire data from eight channels synchronically was designed in this research.To test the reliability of the system,we use Proteus the interactive circuit simulation software to simulate the process of the slave unit and the graphical programming language-LabVIEW programming to visualize the communication of master unit and slave unit.Finally,by means of virtual serial port software,serial communication with pure software environment can be realized.The paper presents in details the scheme and procedures of how the slave unit and the master unit system were designed.