摘要
以单片机远程温度控制系统为例,给出了一种基于LabVIEW与Proteus的测控仿真实验系统的设计方法,利用Proteus中的AT89C51单片机仿真下位机运行,实现温度的采集、A/D转换器的控制及向上位机传输数据等功能。利用LabVIEW仿真上位机运行,对接收的温度信息进行PID控制,将PID调整量输出给单片机,使其输出占空比可调的PWM波,以控制OVEN的工作状态,达到远程控制系统温度的目的。LabVIEW设计的监控界面直观地实现了对温度信号的实时监控和仿真参数的设置。两软件利用Virtual Serial Port Driver 6.9虚拟的一对串口进行RS-232的串行通信。仿真结果表明,该方法可以有效地验证测控系统设计的正确性,对于测控实验教学与工程项目开发的前期实验,具有很好的实用性。
A method of design of measurement and control simulation experiment system based on LabVIEW and Proteus was proposed with the remote temperature controlling system as an example. AT89C51 in Proteus was used as the slave computer to achieve the functions of temperature acquisition, A/D conversion and data transmis- sion to the host computer. LabVIEW was employed to construct the master system to achieve the PID control of the received temperature. It transmitted the PID adjustment data to SCM in order to adjust its PWM wave＇ s duty rati- o. So the working state of ＂OVEN＂ could be controlled and the purpose of the remote temperature controlling could be achieved. The master system communicated with the slave computer by a pair of virtual serial ports constructed by Virtual Serial Port Driver 6.9. Simulation results demonstrated the validity of the methods of design of measure- ment and control system. It has a practicability in the field of experiment teaching and project development.
出处
《辽东学院学报（自然科学版）》
CAS
2016年第4期261-265,共5页
Journal of Eastern Liaoning University:Natural Science Edition
基金
辽东学院青年基金项目(2015QN009)
