Predictive Event-Triggered Control for Disturbanced Wireless Networked Control Systems

The control and scheduling for wireless networked control system with packet dropout and disturbance are investigated.A prediction based event triggered control is proposed to reduce data transmissions while preserving the robustness against external disturbance.First,a trigger threshold is especially designed to maintain the difference of the estimated and actual states below a proper boundary when system suffers from packet dropout.Then a predictive controller is designed to compensate for packet dropouts by utilizing the packet-based control approach.The sufficient conditions to ensure the closed-loop system being uniformly ultimately bounded are derived,with consequently the controller gain method.Numerical examples illustrate the effectiveness of the proposed approach.