论文标题
在干扰攻击下安排网络控制系统
Scheduling networked control systems under jamming attacks
论文作者
论文摘要
本文介绍了针对网络控制系统的调度策略的设计，其共享网络的通信容量有限，并且对工厂渠道的控制器容易受到阻塞攻击的影响。我们假设在N植物中，只有M（<n）植物可以随时与其控制器进行通信，并且攻击序列遵循（M，K） - 固定模型，即，在任何K连续瞬间，发送给某些或所有植物的控制输入在M（<k）时间（<k）时代最多可以访问通信网络。我们设计了一种新算法，以定期将网络分配给植物，以便在可允许的攻击信号下保留每种植物的稳定性。我们分析的主要设备是NCS中各个植物的开关系统表示。我们依靠稳定和不稳定的植物操作模式之间的矩阵换向器（Lie括号）来确保我们的调度策略下的稳定性。
This paper deals with the design of scheduling policies for networked control systems whose shared networks have limited communication capacity and the controller to plant channels are vulnerable to jamming attacks. We assume that among N plants, only M (< N) plants can communicate with their controllers at any time instant, and the attack sequences follow an (m,k)-firm model, i.e., in any k consecutive time instants, the control inputs sent to some or all of the plants accessing the communication network, are deactivated at most at m (< k) time instants. We devise a new algorithm to allocate the network to the plants periodically such that stability of each plant is preserved under the admissible attack signals. The main apparatus for our analysis is a switched systems representation of the individual plants in an NCS. We rely on matrix commutators (Lie brackets) between the stable and unstable modes of operation of the plants to guarantee stability under our scheduling policies.
