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arXiv 1909.13352cs.RO
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基于搜索的多机器人运动规划

Representation-Optimal Multi-Robot Motion Planning using Conflict-Based Search

Texas A&M University(得克萨斯农工大学);University of Illinois Urbana-Champaign(伊利诺伊大学厄巴纳-香槟分校)

Irving Solis, Read Sandström, James Motes, Nancy M. Amato

摘要:

多智能体运动规划(MAMP)是指给定个体的起始和目标状态,为一组智能体计算可行路径的问题。鉴于MAMP的困难,大多数与多智能体系统相关的研究都集中在多智能体寻路(MAPF)上,它通过假设所有智能体共享空间的离散表示来简化问题。基于冲突的搜索算法(CBS)已被证明是在离散空间中生成最佳解决方案的一种易于处理的方法。然而,无论是CBS或其他离散MAPF技术不能直接应用于解决MAMP问题,因为假设共享离散表示的代理的状态空间。在这项工作中,我们解决MAMP问题,通过适应CBS的MAPF方案中发现的技术,在一个连续的空间中的异构代理更一般的问题。我们展示了多达32个代理的可扩展性团队,展示了处理多达8个高自由度机械手的能力,并计划为异构团队。在所有情况下,我们的方法都能显著加快规划速度,同时提供更高质量的解决方案。

英文摘要:

Multi-Agent Motion Planning (MAMP) is the problem of computing feasible paths for a set of agents given individual start and goal states. Given the hardness of MAMP, most of the research related to multi-agent systems has focused on multi-agent pathfinding (MAPF), which simplifies the problem by assuming a shared discrete representation of the space for all agents. The Conflict-Based Search algorithm (CBS) has proven a tractable means of generating optimal solutions in discrete spaces. However, neither CBS nor other discrete MAPF techniques can be directly applied to solve MAMP problems because of the assumption of the shared discrete representation of the agents' state space. In this work, we solve MAMP problems by adapting the techniques discovered in the MAPF scenario by CBS to the more general problem with heterogeneous agents in a continuous space. We demonstrate the scalability teams of up to 32 agents, demonstrate the ability to handle up to 8 high DOF manipulators, and plan for heterogeneous teams. In all scenarios, our approach plans significantly faster while providing higher quality solutions.

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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