Classified Event-Triggered Mechanism for Networked Switched Systems Under Integrity Deception Attacks

This paper proposes an event-triggered secure output regulation (SOR) control strategy against integrity deception attacks (IDAs) for networked switched systems (NSSs) with frequency-limited persistent dwell time (FPDT). Switching law based on FPDT allows for a much larger number of activated unstable subsystems than activated stable subsystems and all switching instants of subsystems and subcontrollers to be unstable. IDAs not only deceive input and output signals, but also tamper with switching signals. From the perspective of communication, cyclic redundancy check (CRC) technology is applied to detect IDAs in bilateral channel networks. The classified event-triggered mechanism (CETM) provides trigger conditions for input signal, output signals and switching signal separately. Compared to single ETMs where the switching signal and the output signal share the same triggering condition, CETM reduces the frequency of switching signal being attacked, thereby shortening asynchronous duration. Finally, a model of areo-engine is used to validate the feasibility of this method.