The Application of Improved DMC in Remote Networked Measure-Control System

Aiming at the problems of network delay, time series disorder and packets dropout in Internet Networked Measure-Control system, an improved DMC predictive control model was built which used time series analysis method. For solving time series disorder and packets dropout, the time series compositor and interpolation method were applied. For reducing the effect of time delay of feedback channels to the whole system, an improved DMC predictive control was presented, and applying the Nth step information sequence control of the multi-step predictive control to solve time delay of forward channels. The whole system was simulated by MATLAB/TRUETIME, and the experiment results demonstrate the feasibility of the improved DMC method applying to solve the above problems.