DoS攻击下多自主体系统的事件触发安全控制  

Event-triggered Security Control for Multi-agent Systems Under DoS Attacks

作　　者：赵昌北 纪文呈宇 姜玉莲 王申全 ZHAO Chang-bei;JI Wen-cheng-yu;JIANG Yu-lian;WANG Shen-quan(School of Electrical and Electronic Engineering,Changchun University of Technology,Changchun 130012,China)

机构地区：[1]长春工业大学电气与电子工程学院,吉林长春130012

出　　处：《控制工程》2022年第6期964-970,共7页Control Engineering of China

基　　金：吉林省科技厅重点科技攻关项目(20200401075GX);吉林省教育厅科学技术研究项目(JJKH20210743KJ)。

摘　　要：针对拒绝服务(DoS)攻击下的时变多自主体系统,在有限域内研究事件触发安全一致性问题。在信息传输过程中,拒绝服务攻击同时存在于测量和控制通道中。将拒绝服务攻击看作是驻留时间切换机制,增广系统转化为包含一个稳定子系统和一个不稳定子系统的离散驻留时间切换系统。为提高通信资源利用率,采用状态依赖阈值的事件触发机制来更新控制输入信号。基于多Lyapunov函数方法,以线性矩阵不等式形式给出系统一致指数稳定且具有期望H∞性能的两个充分条件以及可行的控制器增益。仿真实例验证了发生拒绝服务攻击时,多自主体系统仍然可以实现安全一致性。This paper is concerned with the event-triggered security consensus problem for time-varying multi-agent systems(MASs)against denial-of-service(DoS)attacks over a given finite horizon.In the process of information transmission,the DoS attacks exist in both the measurement and control channels.The Do S attacks are regarded as a dwell-time switching scheme,so that the resulting augmented system can be converted into a class of discrete-time dwell-time switched systems including a stable subsystem and an unstable subsystem.In order to increase the utilization of communication resources,an event-triggered control scheme with state-dependent threshold is adopted to update the control input signal.Based on the analysis method of multiple Lyapunov functions,two sufficient conditions are derived to ensure that the system is uniformly exponentially stable and the desired H∞consensus performance can be achieved.Then,the desired controller gains are derived by solving linear matrix inequalities(LMIs).Finally,a simulation example is provided to illustrate that the security consensus of the multi-agent system can still be achieved despite the presence of DoS attacks.

关 键 词：事件触发机制 拒绝服务攻击 多自主体系统 安全一致性控制 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]