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为了解决网络化控制系统中传输迟延对系统性能的影响问题,在分析控制系统网络传输迟延与系统各环节动作时序的基础上,针对网络传输迟延小于一个采样周期的情况设计了预估器,并设计构建了基于代理的网络化控制仿真系统。控制代理根据数据包中数据的传输次序与时间戳得到网络传输迟延的大小,通过预估计算得到存在传输迟延条件下相应的状态与控制量,使系统能有效克服网络传输迟延的影响。仿真结果表明数据信号通过网络加校正时的输出与参考输出基本相似。
In order to solve the problem that the transmission delay in the networked control system has an impact on the system performance, based on the analysis of the network transmission delay in the control system and the operation sequence of each link in the system, a predictor is designed for the case that the network transmission delay is less than one sampling period Design and construction of agent-based networked control simulation system. The control agent obtains the size of the network transmission delay according to the data transmission order and time stamp in the data packet, and estimates the corresponding states and the amount of control under the condition of transmission delay through the estimation so that the system can effectively overcome the influence of the network transmission delay. The simulation results show that the output of the data signal is almost similar to the reference output when the signal is added through the network.