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<p>With the research on networked control systems (NCSs), communication bandwidth limitation and network security issues are gradually exposed. This paper aims to investigate the design problem of interval type-2 (IT2) fuzzy controller for NCSs with dynamic threshold-based event-triggered (DTBET) scheme and Denial-of-Service (DoS) attacks compensation mechanism. Firstly, in an effort to make a more efficient utilization of limited communication resources, a DTBET scheme is proposed. Compared with most of the existing schemes, the threshold of the DTBET scheme can effectively capture the current trend of system states change, thereby making adjustments. Secondly, to alleviate the unfavorable impact of DoS attacks, an attack compensation mechanism is introduced to send compensation data. Taking DTBET scheme, DoS attacks compensation mechanism and actuator fault into account, the use of Lyapunov stability theory provides a systematic and robust way to guarantee stability in the presence of the disturbance, which identified sufficient conditions for achieving asymptotic stability of the closed-loop system with <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(H_{\infty }\)</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi>H</mi> <mi>∞</mi> </msub> </math></EquationSource> </InlineEquation> performance. Finally, simulation verification is utilized to testify the effectiveness of the proposed control method, which compares different control methods by evaluating the performance indexes, the number of triggers and the convergence speed of the system.</p>

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Dynamic Threshold-Based Event-Triggered Controller Design for IT2 Fuzzy Systems with DoS Attacks Compensation Scheme

  • 期刊论文

  • 发表日期：

    2026年3月5日

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  • Changhao Li,
  • Yingnan Pan,
  • Guangliang Liu

摘要

With the research on networked control systems (NCSs), communication bandwidth limitation and network security issues are gradually exposed. This paper aims to investigate the design problem of interval type-2 (IT2) fuzzy controller for NCSs with dynamic threshold-based event-triggered (DTBET) scheme and Denial-of-Service (DoS) attacks compensation mechanism. Firstly, in an effort to make a more efficient utilization of limited communication resources, a DTBET scheme is proposed. Compared with most of the existing schemes, the threshold of the DTBET scheme can effectively capture the current trend of system states change, thereby making adjustments. Secondly, to alleviate the unfavorable impact of DoS attacks, an attack compensation mechanism is introduced to send compensation data. Taking DTBET scheme, DoS attacks compensation mechanism and actuator fault into account, the use of Lyapunov stability theory provides a systematic and robust way to guarantee stability in the presence of the disturbance, which identified sufficient conditions for achieving asymptotic stability of the closed-loop system with \(H_{\infty }\) H ∞ performance. Finally, simulation verification is utilized to testify the effectiveness of the proposed control method, which compares different control methods by evaluating the performance indexes, the number of triggers and the convergence speed of the system.