IEEE Transactions on Reliability最新文献

英文中文

Cooperative Interaction Observer-Based Security Control for T-S Fuzzy Cyber-Physical Systems Against Sensor and Actuator Attacks 基于协同交互观测器的 T-S 模糊网络物理系统安全控制，对抗传感器和执行器攻击

IF 5 2区计算机科学 Q1 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

IEEE Transactions on Reliability

Pub Date : 2024-08-05 DOI: 10.1109/TR.2024.3411618

Xin Huang;Chenxu Chang;Jian Li;Shuyi Xiao;Qingyu Su

The article investigates security control problems of Takagi-Sugeno (T-S) fuzzy cyber-physical systems (CPSs) against cyber-attacks on sensor measurement and actuator input signals. In T-S fuzzy CPSs, premise variables (PVs) of fuzzy controllers may rely on the measurable states. They can be influenced by the sensor attacks, to bring about the degradation of the control performance. Then, a fuzzy cooperative interaction observer is proposed to construct new, reliable, and available PVs as ones of the controllers. On the other hand, the information usage of sensor and actuator attack estimation errors (AEEs) is insufficient in the existing fuzzy observers. Consequently, it is difficult to further improve the estimation accuracy. Different from them, two auxiliary systems containing the AEE information are constructed. They are able to cooperate with the dynamics of observer's estimation errors, so that the AEE information is fully utilized to enhance the reconstruction accuracy of the attack signals. Furthermore, a class of new fuzzy observer-based security control with the reliable, available PVs is given such that the influence of sensor and actuator attacks and unreliable PVs is removed. Finally, the merit of the presented scheme is illustrated by the MATLAB-based simulation and hardware-in-the-loop experiment.

本文研究了Takagi-Sugeno （T-S）模糊网络物理系统（cps）对传感器测量和执行器输入信号的网络攻击的安全控制问题。在T-S模糊cps中，模糊控制器的前提变量可能依赖于可测状态。它们会受到传感器攻击的影响，导致控制性能下降。然后，提出了一个模糊协同交互观测器来构造新的、可靠的、可用的pv作为控制器。另一方面，现有模糊观测器对传感器和执行器攻击估计误差（AEEs）的信息利用不足。因此，很难进一步提高估计精度。与之不同的是，构建了两个包含AEE信息的辅助系统。它们能够配合观测器估计误差的动态变化，使AEE信息得到充分利用，提高攻击信号的重建精度。在此基础上，提出了一类新的基于模糊观测器的安全控制，该控制具有可靠的、可用的pv，从而消除了传感器和执行器攻击以及不可靠pv的影响。最后，通过matlab仿真和硬件在环实验说明了该方案的优点。

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