Security Control for Cyber-Physical Systems Under Event-Triggered Mechanism

This paper studies the effective and secure control of cyber-physical systems under False-data-injection attacks. In order to mitigate the attacks against the actuators of the cyber-physical systems, we propose a security control algorithm that combines event-triggered mechanism and active mobile target defense. Firstly, the system is modeled as a switching system composed of multiple controllable subsystems, and then the system structure is changed using random switching to enhance the unpredictability of the system, making it difficult for attackers to invade. In addition, the proposed event-triggered mechanism reduces communication costs while ensuring system stability. Finally, the effectiveness of the security control algorithm was verified through simulation experiments.