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arXiv 2404.01752cs.ROcs.AIcs.MA
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连续空间中可扩展多机器人路径规划的安全区间RRT*

Safe Interval RRT* for Scalable Multi-Robot Path Planning in Continuous Space

Sogang University(西江大学)

Joonyeol Sim, Joonkyung Kim, Changjoo Nam

AI总结:

针对连续空间多机器人路径规划(MRPP)因组合特性和连续状态空间导致搜索空间过大的问题,提出一种两级方法,低层用基于采样的SI-RRT*规划器找单机器人无碰撞轨迹,高层用SI-CPP或SI-CCBS解决机器人间冲突,实验证明其能快速找到高质量解且可扩展性更优。

摘要:

本文研究连续空间中的多机器人路径规划(MRPP)问题。该问题的难点在于组合特性与连续状态空间导致的极大搜索空间。我们提出一种两级方法:低层为基于采样的规划器安全区间RRT*(SI-RRT*),用于为单个机器人寻找无碰撞轨迹;高层可采用任何能解决机器人间冲突的方法,我们选用两种代表性方法——优先规划(SI-CPP)和基于冲突的搜索(SI-CCBS)。实验结果表明,SI-RRT*仅需少量样本即可快速找到高质量解;与连续空间的现有最优规划器相比,SI-CPP具有更好的可扩展性,SI-CCBS则能生成更高质量的解。

英文摘要:

In this paper, we consider the problem of Multi-Robot Path Planning (MRPP) in continuous space. The difficulty of the problem arises from the extremely large search space caused by the combinatorial nature of the problem and the continuous state space. We propose a two-level approach where the low level is a sampling-based planner Safe Interval RRT* (SI-RRT*) that finds a collision-free trajectory for individual robots. The high level can use any method that can resolve inter-robot conflicts where we employ two representative methods that are Prioritized Planning (SI-CPP) and Conflict Based Search (SI-CCBS). Experimental results show that SI-RRT* can quickly find a high-quality solution with a few samples. SI-CPP exhibits improved scalability while SI-CCBS produces higher-quality solutions compared to the state-of-the-art planners for continuous space.

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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