摘要
针对网络控制系统受欺骗攻击问题,提出了事件触发器与安全控制器协同设计策略。提出了离散事件触发机制,克服了连续事件触发机制需要新增专用硬件且需要复杂计算避免芝诺现象局限。建立了有机融合欺骗攻击、事件触发机制、网络诱导延时及外部扰动多约束参数的闭环系统时滞模型,推导出了欺骗攻击下事件触发控制系统渐近稳定的充分条件,得到了事件触发器与安全控制器的协同设计条件。仿真验证了方法的有效性。
As for networked control systems under deception attacks,a co-design strategy of event-triggered mechanism and secure controller is proposed.Firstly,a discrete-time event-triggered mechanism is introduced,which overcomes limits of continuous-time event-triggered mechanism requiring dedicated hardware and complex Zeno-avoidance computation.Secondly,a time-delay closed-loop system model is built,which integrates parameters of deception attacks,event-triggered mechanism,network-induced delays and external disturbances in a unified framework.Then,sufficient conditions for asymptotic stability of the attacked event-triggered systems are derived,and the co-design scheme of event-triggered mechanism and secure controller is presented.Finally,simulation confirms the proposed methods.
作者
李富强
郜丽赛
郑宝周
谷小青
LI Fuqiang;GAO Lisai;ZHENG Baozhou;GU Xiaoqing(College of Science,Henan Agricultural University,Zhengzhou 450002,China;School of Mechatronics Engineering and Automation,Shanghai Key Laboratory of Power Station Automation Technology,Shanghai University,Shanghai 200444,China)
出处
《计算机工程与应用》
CSCD
北大核心
2021年第5期264-270,共7页
Computer Engineering and Applications
基金
国家自然科学基金(61703146)
河南省科技攻关项目(202102110126)
河南省高等学校青年骨干教师项目(2020GGJS048)
河南省教育厅重点科研项目(19A413009)
河南农业大学科技创新项目(KJCX2016A09,KJCX2015A17)。
关键词
网络控制系统
欺骗攻击
事件触发机制
渐近稳定
协同设计
networked control system
deception attack
event-triggered mechanism
asymptotic stability
co-design
