Journal
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
Volume 65, Issue 9, Pages 3943-3949Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAC.2020.2989773
Keywords
Denial of service (DoS) attacks; networked control systems (NCSs); security control; switching-like event-triggered communication
Funding
- National Natural Science Foundation of China [61833011, 61673255, 61633016]
- 111 Project [D18003]
- Outstanding Academic Leader Project of Shanghai Science and Technology Commission [18XD1401600]
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This article investigates the switching-like event-triggered control for networked control systems (NCSs) under the malicious denial of service (DoS) attacks. First, by dividing the DoS attacks into S-interval (DoS-free case) and D-interval (DoS case), a switching-like event-triggered communication scheme (SETC) is well designed to deal with intermittent DoS attacks to improve communication efficiency while keeping the desired control performance. Second, by considering the SETC and NCSs into a unified framework, the studied system is transferred into a time-delay system. Then, under the constraint of the number of maximum allowable data dropouts induced by DoS attacks, a stability criterion and a stabilization criterion are derived, which can be used to estimate the event-triggered communication parameters and obtain the security controller gain simultaneously. Moreover, the derived stabilization criterion can also provide a tradeoff to balance communication efficiency and H-infinity control performance. At last, a networked invert pendulum on a cart is conducted to show the effectiveness of the proposed method.
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