基于虚拟仪器平台的PID控制系统的设计

以美国国家仪器公司的图形化编程语言LabVIEW为开发平台，结合PID控制工具包，介绍了炉温控制系统的整个设计过程。阐述了炉温控制系统的硬件结构组成，其中包括PCI-1200数据采集卡、PID控制器的设计方法。给出了炉温控制系统的软件设计，主要包括数据采集模块、PID控制输出模块的设计以及炉温控制系统PID参数的整定方法。实践证明，本温度控制系统具有稳定温度时间短，稳定精度高等特点，有较高的实用价值，良好的应用前景。

The Design PID Control System Based on Virtual Instruments Platform

This paper regards figure programming language LabVIEW of the national instrument company of U.S.A. as the developing platform, combine PID control the tool kit, introduces the whole design process of the control system of furnace temperature. At first, the structure of the control system of furnace temperature is explained, including PCI-1200 data acquisition card, PID controller design method. Narratation of software design, furnace temperature of control system then is introduced, which includes data acquisition module, PID control and output the module mainly. Exactly making the method of control system PID parameter of furnace temperature finally is introduced. Practice has proved that the time of stabilizing temperature of this temperature control system is short, the precision of stability is high. This designed PID control system has higher practical value and good application prospect.