Distributed temperature-pressure measurement and control system based on expert PID control theory and COM technology

Taking account of the necessary conditions of the temperature and pressure experiments,a distributed temperature-pressure measurement and control system was designed and realized,which could be used to control the temperature or pressure of environmental simulation cabin,of which the software was implemented by using COM technology.To solve the contradiction between system overshoot and speed of response,and get better performance,an expert control method was introduced into this temperature-control system based on the classical PID control theory.Comparing the simulated result with the experimental data,the expert control method has been proved with the advantages of no-overshoot,fast response,high precision and great efficiency.It is significant to the same system.