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arXiv 2607.07136cs.RO
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学习用于输入约束下未知系统控制的全类信号时序逻辑任务的时空管

Learning Spatiotemporal Tubes for Full Class of Signal Temporal Logic Tasks for Control of Unknown Systems under Input Constraints

Electrical Engineering Department, Eindhoven Institute of Technology(埃因霍温理工大学电气工程系)

Ahan Basu, Ratnangshu Das, Soumyodipta Nath, Siyuan Liu, Pushpak Jagtap

AI总结:

针对输入约束下未知的非线性EL系统,提出基于时空管的控制框架,用PINN建模STT,将鲁棒性指标纳入训练,多智能体场景考虑全局任务指标,开发控制律并通过案例验证,以满足STL规范。

摘要:

本文提出了一种基于时空管(STT)的控制框架,用于受输入约束的一般未知非线性欧拉 - 拉格朗日(EL)系统,目标是满足信号时序逻辑(STL)规范,系统轨迹限制在STT内可保证相应STL任务的满足。在单智能体和多智能体场景中,将每个智能体的STT建模为时变球,其中心和半径用物理信息神经网络(PINN)联合参数化。与智能体对应的STL规范相关的鲁棒性指标作为损失函数纳入训练过程,使学习到的管能编码任务级时间要求。对于多智能体场景,引入对应全局任务的额外鲁棒性指标,确保管不相互碰撞。提出明确考虑输入约束的控制策略,开发了闭式控制律使轨迹保持在管内并根据系统输入约束调节管的运动。该方法在多个案例研究中得到验证。

英文摘要:

This paper presents a Spatiotemporal Tube (STT)-based control framework for general unknown nonlinear Euler-Lagrange (EL) systems subject to input constraints, with the objective of satisfying Signal Temporal Logic (STL) specifications, where confinement of the system trajectory within the STT guarantees the satisfaction of the corresponding STL task. For both single and multi-agent scenarios, the STT corresponding to each agent is modeled as a time-varying ball, whose center and radius are jointly parameterized using a physics-informed neural network (PINN). The robustness metric associated with the STL specification corresponding to the agents is incorporated into the training process as a loss function, enabling the learned tube to encode task-level temporal requirements. For a multi-agent scenario, we introduce an additional robustness metric corresponding to the global task, which, when satisfied, ensures the tubes do not collide with each other. To ensure that the system trajectory remains within the learned STT and thereby satisfies the local and global STL specifications, we propose a control strategy that explicitly accounts for input constraints. In particular, a closed-form control law is developed to keep the trajectory inside the tube while regulating the motion of the tube by enforcing bounds on its evolution depending on the input constraints of the system. The proposed approach has been validated over several case studies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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