在物理故障和完整性网络攻击下,基于观察者的容错和弹性控制.
IEEE transactions on cybernetics
|October 30, 2025
概括
本研究提出了一个统一的框架,用于检测和管理网络物理系统的异常,包括物理故障和网络攻击. 这种新的方法通过协作检测和控制器重新配置来提高系统的弹性和故障耐受性.
科学领域:
- 网络物理系统 网络物理系统
- 控制理论 控制理论
- 网络安全 网络安全
背景情况:
- 网络物理系统 (CPS) 面临来自物理故障和网络攻击的威胁.
- 现有的控制策略往往缺乏针对各种异常的综合检测和适应.
- 确保CPS的弹性需要强大的方法来应对内部故障和外部网络威胁.
研究的目的:
- 为网络物理系统开发统一的控制和检测框架.
- 同时检测和适应多重物理故障和添加完整性网络攻击.
- 为了提高CPS的故障耐受性和攻击弹性.
主要方法:
- 分析基于观察者的网络安全配置,使用coprime因数分解.
- 通过coprime因子不确定性对乘法失误的表征.
- 开发一个协作检测方案,区分故障和网络攻击引起的变化.
- 实现基于性能的故障检测器和基于观察者的攻击检测器.
- 使用Youla参数化的控制器重新配置,以提高弹性.
主要成果:
- 故障和网络攻击引起的变化在闭环动态中表现出不同的属性.
- 一个协作检测方案有效地区分物理故障和网络攻击.
- 拟议的控制器重新配置提高了故障耐受性和攻击弹性.
- 该计划在领导者-追随者机器人系统上成功验证.
结论:
- 统一的框架为管理网络物理系统中的异常提供了一个强大的方法.
- 协作检测和控制重新配置策略显著提高了系统的弹性.
- 该方法有效地应对涉及物理故障和网络攻击的复杂威胁.
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