Mixed H ∞ and passive event‐triggered control for Markovian jump systems with sensor saturation under cyber‐attacks

In this study, we address two fundamental questions that are crucial for designing stealthy cyber‐attacks similar to false data injection. The first question involves obtaining an accurate dynamic model of the target to ensure stealthy performance under a detector. The second question pertains to understanding the opponent's ongoing detection tactics, such as dynamic watermarking, and developing a counter‐strategy. To answer the first question, we propose a data‐driven framework that calculates the accurate dynamic model used in stealthy false data injection cyber‐attacks, including zero dynamics attacks, covert attacks, and replay attacks. To address the second question, we present a scheme against the dynamic watermarking defense strategy, which typically detects replay attacks. We validate the methods introduced in this study through an experimental setup of a cyber‐physical system, which includes an omnidirectional mobile robot, a wireless network router, and a remote control center.

Section: Preliminariesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The sensor‐actuators stealthy cyber‐attacks framework on networked control systems: A data‐driven approach

Xin,

Yang,

Long

2023

“…For the state observer (8), by proposing the sliding surface function (10), then the sliding surface s(t) = 0 can be arrived and maintain of sliding motion can be ensured in finite-time by the following SMC law: (15) in which 𝜖 is a small tuning scalar. The computing algorithm for compensator v(t) is defined in (28), and 𝜚(t) is designed as follows:…”

Section: Observer-based Smc Designmentioning

confidence: 99%

“…On the other hand, with the development and advancement of information technology for intelligent systems, the security issue for cyber-physical systems becomes an important challenge due to various cyber-attacks, that is, the deception attacks [28], the replay attacks [29], and the denial-of-service attacks [30]. Such malicious attacks pose serious security threats to national industries and economy.…”

Section: Introductionmentioning

confidence: 99%

Observer‐based event‐triggered H‐infinity sliding control of Markovian jump system suffer from actuator attacks

Jiang

Liu

Karimi

et al. 2022

This article investigates the issue of observer-based H ∞ sliding mode control for Markovian jump systems suffer from actuator attacks through an adaptive technique. During the communication channel from the plant output to estimator, a dynamic event-triggered generator is employed in enhancing communication efficiency. Taking consideration of malicious attacks on the plant actuator, an adaptive compensator is put forward for security purposes. By designing a state observer, the desired sliding mode dynamics can be derived based on an integral-type sliding surface. Further, maintaining the sliding motion with uncertain mode information is ensured in finite time by proposing a feasible sliding mode control law. In addition, both stochastic stability and H ∞ performance conditions are established for closed-loop systems in terms of linear matrix inequalities. Finally, a numerical example is offered to illustrate the validity of the constructed strategy.

“…In order to reduce the waste of resources and data redundancy in modern industrial control applications, event‐triggered control was introduced [31]. Therefore, the majority of scholars were dedicated to the research of event‐triggered control, and many important results of event‐triggered control were presented [32–37]. By considering two coupling cases between the mode switching signal and the event‐triggered signal, a sufficient finite‐time

{H}_{\infty }

performance analysis criterion was provided based on the average dwell time method in [37].…”

Section: Introductionmentioning

confidence: 99%

Finite‐time event‐triggered control for a class of cascade switched affine nonlinear systems

Huang

2023

This paper is concerned with the finite-time boundedness (FTB) problem of a class of cascade switched affine nonlinear systems. In order to avoid unnecessary waste of network communication and Zeno behavior, a dynamical event-triggered scheme is proposed, which is more general than some existing event-triggered schemes with a common parameter matrix. By using the average dwell time method and multiple Lyapunov function technologies, sufficient conditions for the existence of controller gains are first proposed such that the closed-loop system is finite-time bounded with a finite-time disturbance attenuation performance. It is also proved that the Zeno phenomenon is excluded. Finally, a numerical example is given to illustrate the feasibility and effectiveness of the proposed method.