基于随机通信逻辑的网络控制器设计

Design of Networked Controller Based on Stochastic Communication Logic

设计具有带宽约束的网络控制器,采用带时倚强度的泊松过程形成随机通信逻辑调度策略,实现系统状态的有限次更新,根据其马尔科夫跳变本质,基于更新时刻特性,协同设计控制器。仿真结果表明,引入随机通信逻辑能减少状态更新的次数,降低网络带宽对控制性能的影响,提高系统的动态性能。

The controller design for networked controller with bandwidth constraints is studied in this paper. The scheduling strategy based on stochastic communication logic is presented using Poisson process with time-dependent intensity. Then the limit updates are obtained. According to its Markov jump linear characteristic, the controller is co-designed based on update time. Simulation results show that the times of state update are reduced, the influence of bandwidth on control performance is decreased, and the dynamic performance of the system is improved by means of introducing stochastic communication logic.