关键词: 网络时延, 模型预测控制, 网络控制系统

Abstract: Aiming at the issues of random delay and delay uncertainty in both the before channel and feedback channel for networked control system, the root causes of random delay influence closed-loop control system by case are analyzed, and the predictive control method based on neural network to solve the feasibility of existence network random delay in control system closed-loop control is provided. Simulation results show that the method can reflect and predict the delay characteristics between the network paths which are presented by measurement data, and can effectively substitute for the actual network in the design of closed-loop control system based on Internet to research. The method is fast and accurate, can be used for online learning network model and forecast the network delay value, provides a new way to remote closed-loop control based on Internet.

Key words: network time-delay, model predictive control, networked control system