网络控制系统中网络丢包的仿真分析

Simulation analysis of network packet loss in networked control system

针对网络控制系统中不可避免的丢包问题,利用True Time工具箱中的True Time Network模块模拟不同的丢包率,建立了具有数据包丢失的网络控制系统模型。仿真采用CAN总线的网络控制系统的模型,为了保证系统的稳定,丢包率可以达到18%。结果表明:采用CAN总线可提高网络控制系统承受的丢包率。

In view of the inevitable packet loss in the networked control system,the networked control system model with data packet dropout is built by using the True Time Network module with simulation of different packet loss rate in True Time toolbox. In order to guarantee the stability of the system,packet loss rate can reach 18% when the simulation of network control system model using CAN bus. The conclusion is obtained that CAN bus can improve the packet loss rate of the networked control system.