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Resilient observer-based event-triggered control for cyber-physical systems under asynchronous denial-of-service attacks

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Abstract

We develop the resilient observer-based event-triggered control update strategy in this paper. It is utilized to achieve the input-to-state stability (ISS) of cyber-physical systems (CPSs) when there is an asynchronous denial-of-service (DoS) attack, which is launched by malicious adversaries both on measurement channel and control channel in a random attack strategy. To estimate the unmeasurable states while saving the limited networked bandwidth, an H∞ observer-based event-triggered control scheme is first designed to guarantee the ISS of CPSs with economic communication. Moreover, the occurrence of Zeno behavior can be eliminated by providing the existence of a lower positive bound of any two inter-event times. Then, a recursive model of asynchronous DoS attacks is introduced. A resilient control update strategy is proposed and further analyzed to derive the stability criterion of CPSs. At last, a numerical simulation example is given to demonstrate the effectiveness of the introduced control update policy.

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Authors and Affiliations

  1. State Key Laboratory of Industrial Control Technology, Institute of Cyber-Systems and Control, Zhejiang University, Hangzhou, 310027, China

    Yifang Zhang & Zhengguang Wu

  2. School of Automation, Guangdong University of Technology, Guangzhou, 510006, China

    Zongze Wu

  3. Seventh Research Division, Beihang University (BUAA), Beijing, 100191, China

    Deyuan Meng

  4. School of Automation Science and Electrical Engineering, Beihang University (BUAA), Beijing, 100191, China

    Deyuan Meng

Authors
  1. Yifang Zhang
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  2. Zhengguang Wu
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  3. Zongze Wu
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  4. Deyuan Meng
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Correspondence to Zhengguang Wu.

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Zhang, Y., Wu, Z., Wu, Z. et al. Resilient observer-based event-triggered control for cyber-physical systems under asynchronous denial-of-service attacks. Sci. China Inf. Sci. 65, 142203 (2022). https://doi.org/10.1007/s11432-020-3190-2

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  • DOI: https://doi.org/10.1007/s11432-020-3190-2

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