ترجمه مقاله نقش ضروری ارتباطات 6G با چشم انداز صنعت 4.0
- مبلغ: ۸۶,۰۰۰ تومان
ترجمه مقاله پایداری توسعه شهری، تعدیل ساختار صنعتی و کارایی کاربری زمین
- مبلغ: ۹۱,۰۰۰ تومان
Abstract
This paper studies the problem of designing a resilient control strategy for cyber-physical systems (CPSs) under denial-of-service (DoS) attacks. By constructing an H∞ observer-based periodic event-triggered control (PETC) framework, the relationship between the event-triggering mechanism and the prediction error is obtained. Then, inspired by the maximum transmission interval, the input-to-state stability of the closed-loop system is proved. Compared with the existing methods, a Zeno-free periodic PETC scheme is designed for a continuous-time CPS with the external disturbance and measurement noise. In particular, the objective of maximizing the frequency and duration of the DoS attacks is achieved without losing robustness. Finally, two examples are given to verify the effectiveness of the proposed approach.
Conclusions
In this paper, the periodic event-triggered control strategy for CPSs under DoS attacks is investigated. An H∞ observer is used to relax the assumption of full-state information available and restrict the influence of the disturbance and noise. A predictor is designed to predict the system state in the interval between any two continuous eventtriggering. Besides, the lower bounded of the inter-event times is obtained to exclude continuous triggering of each verification period. In this way, the transmission interval is extended, and the communication resources are saved. Input-to-state stability analysis is proposed when sufficient condition on the duration and frequency of the DoS attacks is satisfied, and using the upper bound of the prediction error, the conservativeness of the tolerable of DoS attacks is reduced. Finally, a simple numerical simulation and a batch reactor system simulation have been given to illustrate the effectiveness of the proposed control strategy.