大規模マルチロボットシステムにおけるステルスアクチュエータ攻撃下での分散型セキュア学習制御
Distributed Secure Learning Control for Large-scale Multirobots under Stealthy Actuator Attacks
マルチロボットシステム向けに、強化学習と分散モデル予測制御を統合し、悪意あるステルスなアクチュエータ攻撃に対抗する分散型セキュア学習制御フレームワークを提案した論文。
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著者: Xinglong Zhang, Qingwen Ma, Cong Li, Hui Yin, Changxin Zhang, Yueying Wang, Wei Pan, Xin Xu
分類: cs.RO
原文アブストラクト
Distributed learning control for multirobot systems (MRS) offers significant flexibility in presence of uncertainties but lacks provable performance guarantees. A promising direction involves integrating reinforcement learning (RL) into distributed model predictive control (DMPC), leveraging the strengths of RL in nonlinear policy design and the receding-horizon replanning capabilities of DMPC. However, ensuring secure control within such a learning framework under malicious cyber attacks, particularly stealthy ones, remains a critical challenge, because the distributed policies generation depends on information exchange among neighbors, where compromised agents can rapidly influence the behavior of others through the communication network. This article proposes a distributed secure learning control (DSLC) framework for large-scale MRS under malicious, stealthy actuator attacks. Our framework offers two key features: (i) a unified approach that enables secure learning control across various coordination scenarios and (ii) a game-theoretic distributed learning-based predictive control strategy that learns how to balance the attacker and defender through a differential-game based DMPC framework. Specifically, DSLC employs a distributed attacker-actor-critic architecture to learn the optimal defense and attack policies online within each prediction interval. Unlike numerical optimization-based controllers that calculate open-loop control sequences, our method simultaneously generates adversarial attack policies and corresponding defense policies in analytical closed-loop form. The defense policies could be directly generalized to MRS with varying scales and diverse actuator attack probabilities. The effectiveness and scalability of DSLC are validated through comprehensive simulations and real-world experiments in multiple wheeled robots via various control tasks.