Performance and reliability improvement of cyber-physical systems subject to degraded communication networks through robust optimization

摘要: Abstract The study of cyber-physical systems (CPSs) is a rapidly developing field because their broad application in different areas. However, the degradation, i.e., time delay and packet dropout, that originated from cyber layer-communication networks would deteriorate performance physical layer. Hence, internal dependence reliability such complex safety-critical must be analyzed. In this paper, we describe CPS by using time-varying models its main components realize it TrueTime simulator. Monte Carlo simulation applied to estimate system reliability. parameters discrete-time proportional-integral-derivative (PID) controller are tuned improve CPS. Considering undergo perturbation when hardware implementation, use particle swarm optimization search for robust PID can ensure satisfied control against parameter perturbation. An industrial heat exchanger studied illustrate correctness efficiency proposed method.