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arXiv 2403.10554eess.SYcs.LOcs.ROcs.SY
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通过信号时态逻辑规范增量分解的安全规划

Safe Planning through Incremental Decomposition of Signal Temporal Logic Specifications

Carnegie Mellon University(卡内基梅隆大学);Pennsylvania State University(宾夕法尼亚州立大学)

Parv Kapoor, Eunsuk Kang, Romulo Meira-Goes

AI总结:

本文提出通过时间分解信号时态逻辑规范为可达性和不变性约束并顺序调度,以提升轨迹规划效率,在线性和非线性系统上优于现有方法。

摘要:

轨迹规划是使自主系统能够安全地在复杂环境中导航的关键过程。信号时态逻辑(STL)规范是编码信息物理系统(CPS)中轨迹规划的复杂时间扩展目标的有效方式。然而,使用现有技术从这些规范进行规划,其复杂度随嵌套算子数量和规范范围呈指数增长。此外,由于有限的计算预算和复合建模误差,运行时性能会进一步恶化。将复杂规范分解为较小的子任务并增量规划可以解决这些问题。在这项工作中,我们提出了一种在时间上分解STL需求以提高规划效率和性能的方法。我们工作的关键见解是将所有规范编码为一组可达性和不变性约束,并在运行时顺序调度这些约束。我们提出的技术在线性和非线性动力系统上均优于最先进的轨迹合成技术。

英文摘要:

Trajectory planning is a critical process that enables autonomous systems to safely navigate complex environments. Signal temporal logic (STL) specifications are an effective way to encode complex temporally extended objectives for trajectory planning in cyber-physical systems (CPS). However, planning from these specifications using existing techniques scale exponentially with the number of nested operators and the horizon of specification. Additionally, performance is exacerbated at runtime due to limited computational budgets and compounding modeling errors. Decomposing a complex specification into smaller subtasks and incrementally planning for them can remedy these issues. In this work, we present a way to decompose STL requirements temporally to improve planning efficiency and performance. The key insight in our work is to encode all specifications as a set of reachability and invariance constraints and scheduling these constraints sequentially at runtime. Our proposed technique outperforms the state-of-the-art trajectory synthesis techniques for both linear and non linear dynamical systems.

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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