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arXiv 2110.04089cs.ROcs.AI
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多机器人任务分配与运动规划--以杂乱工作空间中的物体拾取为例

Task Allocation for Multi-Robot Task and Motion Planning: a case for Object Picking in Cluttered Workspaces

Department of Informatics, Bioengineering, Robotics, and Systems Engineering, University of Genoa(热那亚大学信息学、生物工程、机器人与系统工程系)

Hossein Karami, Antony Thomas, Fulvio Mastrogiovanni

摘要:

我们提出了一个与/或图为基础的,集成的多机器人任务和运动规划的方法,(一)执行任务分配协调活动的一个给定数量的机器人,(ii)是能够处理任务,涉及一个先验未知数量的对象重新安排,如那些参与检索对象从杂乱的机器人。例如,在搜索和救援场景中,当定位/拾取杂乱的感兴趣对象时,可能会出现这种情况。相应的问题属于杂乱规划的范畴。在杂波中进行规划时的挑战之一是,通常事先不知道拾取目标对象所需的对象重新布置的数量。此外,这样的任务可以以各种方式分解,因为不同的杂乱对象重新布置可能到达目标对象。在我们的方法中,任务分配和分解是通过最大化的组合效用函数。分配的任务由一个集成的任务和运动规划器,这是强大的要求未知数量的重新安排任务。我们证明了我们的结果与实验模拟两个FrankaReplika机械手。

英文摘要:

We present an AND/OR graph-based, integrated multi-robot task and motion planning approach which (i) performs task allocation coordinating the activity of a given number of robots, and (ii) is capable of handling tasks which involve an a priori unknown number of object re-arrangements, such as those involved in retrieving objects from cluttered workspaces. Such situations may arise, for example, in search and rescue scenarios, while locating/picking a cluttered object of interest. The corresponding problem falls under the category of planning in clutter. One of the challenges while planning in clutter is that the number of object re-arrangements required to pick the target object is not known beforehand, in general. Moreover, such tasks can be decomposed in a variety of ways, since different cluttering object re-arrangements are possible to reach the target object. In our approach, task allocation and decomposition is achieved by maximizing a combined utility function. The allocated tasks are performed by an integrated task and motion planner, which is robust to the requirement of an unknown number of re-arrangement tasks. We demonstrate our results with experiments in simulation on two Franka Emika manipulators.

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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