Event-Triggered Security Defense Control for Remote Motor Under DoS Attack
针对远程电机系统在拒绝服务攻击下的安全问题，提出一种事件触发滑模预测控制方法，通过自适应趋近律和动态损失因子提升系统稳定性，并用仿真和半物理实验验证了有效性。
In this article, an event-triggered sliding mode predictive control method for remote motor systems under Denial of service (DoS) attacks is investigated. First, an adaptive reaching law with integral sliding mode strategy is designed. The stability of the designed sliding mode strategy is demonstrated. Second, a security control generator based on sliding mode predictive control is proposed, which releases predictive control sequence to reduce the impact of sensor signal interruption caused by DoS attacks on system stability, and its stability is proved. Further, an event-triggered mechanism with better-dynamic performance is proposed by introducing dynamic loss factor. Finally, the effectiveness of the designed method is demonstrated by a simulation experiment and a semi-physical simulation together.