基于信息调度的网络化控制系统

Networked control based on information scheduling

针对具有通信约束的串行网络化控制系统设计问题,提出了一种简单灵活的控制系统信息调度方法。考虑到控制与通信的耦合情形,信息调度方法采用了轮流分批发送信息的方式,从而减少了网络信道中的数据流量,同时将网络环境下的系统模型转化为一种具有等价周期的采样数据系统模型。基于所得的数学模型和信息调度方法,给出了调度算法与反馈控制联合设计的过程。仿真研究表明该方法是有效可行的。

A simple and flexible information scheduling approach is presented for the design problem of serial networked control systems with communication constraints. The quantity of data flow in the network is decreased through alternative information-sending mode aimed at the coupling of control and communication, and the design problem is reformulated as the one for periodic sampled-data system. With such a mathematic model and information scheduling, H infinity control design problem can be solved. The simulation indicates the effectiveness of the approach.