Event-triggered interval observer design for a class of Cyber-physical systems with attacks

For Cyber-physical systems under deception attack, we study the state interval estimation. At the same time, To enhance the utilization rate of network resources, the event-triggered mechanism is adopted to reduce unnecessary data communication. Based on the positive system theory and Lyapunov stability theory, a sufficient condition for the boundedness of the interval observer is given by analyzing the convergence of the error system. And by solving the observer gain matrix with LMI, an event-triggered interval observer is designed, and the interval estimation of Cyber-physical systems is realized. Finally, we verify the rationality of the event-triggered interval observer through simulations.