具有随机丢包的无线网络控制系统仿真研究

Research of the wireless networked control system with random packet dropout simulation

本文介绍了一种基于Matlab/Simulink的联合仿真工具——TrueTime工具箱,利用该工具箱并以直流伺服电机为受控对象,建立起一个单包传输有随机数据包丢失的无线网络控制系统的仿真模型.通过仿真实验研究数据丢包对于系统控制性能的影响,对比当出现数据丢包时,控制器采用上一时刻的控制律与不采用任何控制律的控制效果,两者并没有明显差别.

This paper introduces an simulation tool based on Matlab/Simulink-TrueTime tool box. True time is employed to set up a simulation model of DC motor in a single packet transmission Wireless Net-workedControl System with random data packet dropout. According to the simulation experiment, the influence of data packet dropout on the performance of the wireless networked control system is investigated. When there is a data packet dropout, there is no obvious difference between the controller＇s adopting the previouscontrol law and controller＇s adopting zero control law.