In order to get over the disadvantages of poor temperature stability of the PID system and single fuzzy system in original beer production line, the improved P-Fuzzy-PI combined with Smith compensation program (on-line parameter adaptive) was used to achieve real-time temperature control.

considering the large object inertia and characteristics of delay,Smith compensation.

Fuzzy PID control and Smith compensation method is applied in this project,aiming at the temperature real time control in production process of acroleic acid latex.

Adaptive Smith compensator for NCSs over IP networks;

The paper introduces regulating principle of digital Smith compensator,realizes Smith compensationthrough SLPC digital regulator and introduces the application of digital regulator in temperature controlling sys-tem.

The Smith compensator controller corrected by a varied dead zone s asymmetrical nonlinear method, is studied and used in the simulation of the process control of indirect steaming, the results shows that the system which controlled by a corrected Smith compensator controller has good robustness of stability while the process and it s modal is not matched.

Based on the ideal of Smith predictor, a decentralized decoupling and centralized control design method of predictive functional control(PFC) is proposed for two-input two-output(TITO) first-order plus dead-time process.

The implementation of Smith compensating algorithm using OMRON C200Hα PLC;

Based on the Smith compensation control theory,the prediction of time lag compensation is designed by use of the nonlinear mapping function of neural network on line identification,and then the conventional PID controller is replaced with NN PID controller(the Adaline networks are used)to take the adaptive control for the time lag object.

The conventional PID control and Smith compensation control algorithm in dealing with large time-delay, strong coupling, multivariable, uncertainties objects are uneffective.