In this paper, a novel control architecture for constrained networked control systems is developed with the aim to mitigate the effects of cyber-attacks occurring on the communication channels. By resorting to set-theoretic concepts, physical watermarking ideas and basic cyber-security tools, the proposed supervisor-based control scheme is capable of detecting and mitigating False Data Injection and Denial of Service attacks affecting the normal dynamical evolution of the regulated system. As one of its main merits, the proposed solution guarantees constraint fulfillment, and uniform ultimate boundedness of the regulated system despite any admissible attack realization. Simulation studies are presented to show the capability of the proposed framework while facing different attacks.
W. Lucia, G. Franze' and B. Sinopoli, "A supervisor-based control architecture for constrained cyber-physical systems subject to network attacks," IEEE Transactions on Control of Network Systems (CONES), DOI: 10.1109/TCNS.2022.3182098, 2022