基于候选选择技术的基于事件触发安全观察者的网络物理系统控制

Jie Su, Xiaolong Qian, An-Yang Lu
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引用次数: 0

摘要

针对网络物理系统在稀疏传感器攻击下,设计了一类具有良好事件触发机制和安全状态观测器的安全控制器。通过设计一个观测器,其基本思想是通过去除被破坏的测量值来重建正确的状态,提出了一种基于观测器的控制器。然后,设计了一种新的候选集选择算法,选择合适的候选集,使残差信号的范数收敛。将构造的基于观测器的控制器与候选选择算法相结合,提出了一种安全的基于观测器的控制算法,使系统状态收敛到零的邻域,即使某些测量值被破坏。最后给出了一个算例,结果表明所提方法是有效的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Event-triggered secure observer-based control for cyber-physical systems via candidate selection technique
This paper focuses on designing a class of secure controller with well-designed event-triggering scheme and secure state observer for cyber-physical systems (CPSs) under sparse sensor attacks. Through designing an observer where the basic idea is to reconstruct the correct state through removing the measurements being compromised, an observer-based controller is proposed. Then, a novel candidate selection algorithm is designed to select an appropriate candidate set such that the norm of the residual signal is convergent. By combining the constructed observer-based controller and the candidate selection algorithm, a secure observer-based control algorithm is proposed such that the system state converges to a neighborhood of zero even if some measurements are compromised. Finally, an illustrative example is considered and it is shown that the proposed methods are effective.
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