Journal of Lanzhou University of Technology ›› 2020, Vol. 46 ›› Issue (6): 85-97.

• Automation Technique and Computer Technology • Previous Articles     Next Articles

Co-design of CPS dual security control and communication under DoS attack

LI Wei1,2,3, WEI Kai-feng1, LI Ya-jie1, SHI Ya-hong1   

  1. 1. College of Electrical and Information Engineering, Lanzhou Univ. of Tech., Lanzhou 730050, China;
    2. Key Laboratory of Gansu Advanced Control for Industrial Processes, Lanzhou Univ. of Tech., Lanzhou 730050, China;
    3. National Demonstration Center for Experimental Electrical and Control Engineering Education, Lanzhou Univ. of Tech., Lanzhou 730050, China
  • Received:2019-07-09 Online:2020-12-28 Published:2021-01-07

Abstract: In view of a class of CPS with actuator failure and DoS attacks, this paper studies the cooperative design of CPS dual security control and communication on the basis of concept of edge computation combined with event-triggered communication mechanism. Firstly, based on the resource allocation of edge computing, the CPS dual security control architecture under the discrete event trigger mechanism is proposed, meanwhile transforming the finite energy DoS attack into a special delay, and the closed-loop CPS model under fault and attack is established under the scheme of discrete event triggering. Secondly, the appropriate Lyapunov-Krasovskii functional with the aid of the time-delay system theory and using affine Bessel-Legendre and other inequalities are both constructed. The robust observer of state and fault estimation under DoS attack and the dual security control and communication collaborative design method under DoS attack are presented respectively. Finally, the effectiveness and feasibility of present theoretical results in this paper are verified by the simulation of four-tank water tank system.

Key words: dual security control, discrete event-triggered communication scheme, denial of service attack, edge computing

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