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arXiv 2104.01549cs.ROcs.AI
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基于迭代深化AND/OR图网络的任务-运动规划框架

A Task-Motion Planning Framework Using Iteratively Deepened AND/OR Graph Networks

University of Genoa(热那亚大学)

Hossein Karami, Antony Thomas, Fulvio Mastrogiovanni

摘要:

提出了一种基于迭代深化与或图网络(TMP-IDAN)的任务运动规划(TMP)方法,该方法使用基于与或图网络的新颖抽象来表示任务级状态和动作。在从杂波中检索目标对象时,预先不知道抓取目标所需的对象重新排列的数量。为了应对这一挑战,与传统的基于AND/OR图的规划器相比,我们在线增长AND/OR图,直到目标抓取可行,从而获得AND/OR图的网络。与或图网络允许比传统任务规划器更快的计算。我们验证我们的方法,并评估其能力,使用巴克斯特机器人和国家的最先进的机器人模拟器在几个具有挑战性的非平凡的杂乱的桌面场景。实验表明,我们的方法是很容易扩展到越来越多的对象和不同程度的混乱。

英文摘要:

We present an approach for Task-Motion Planning (TMP) using Iterative Deepened AND/OR Graph Networks (TMP-IDAN) that uses an AND/OR graph network based novel abstraction for compactly representing the task-level states and actions. While retrieving a target object from clutter, the number of object re-arrangements required to grasp the target is not known ahead of time. To address this challenge, in contrast to traditional AND/OR graph-based planners, we grow the AND/OR graph online until the target grasp is feasible and thereby obtain a network of AND/OR graphs. The AND/OR graph network allows faster computations than traditional task planners. We validate our approach and evaluate its capabilities using a Baxter robot and a state-of-the-art robotics simulator in several challenging non-trivial cluttered table-top scenarios. The experiments show that our approach is readily scalable to increasing number of objects and different degrees of clutter.

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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