基于Markov延时的网络化预测控制系统的设计与实现

The Design and Implementation of Network Predictive Control System Based on Markov Time Delay

针对无线网络化控制网络中存在的延时问题,应用一种改进的网络化预测控制(NPC)方法对其进行补偿。相比传统的网络化预测方法,该方法应用维数自适应的预测控制序列,由于传输延时具有Markov特性,基于Markov过程建立系统数学模型,估算本时刻系统延时,实现网络延时补偿。最后通过直流电机网络化控制实验验证该方法的可行性。

In view of time delay question existing in the control network of wireless network,an improved network predictive control (NPC)method is applied to compensate.Comparing to the traditional network forecast method,this method application dimension adaptive predictive control series.Because the transmission time delay characteristic of Mark-ov,based on the Markov process establishes system mathematical model,estimates the time delay of system in the mo-ment,realizes network time delay compensation.Finally verifies the feasibility of this method through the DC machine net-work control experiment.