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Embracing Contact: Pushing Multiple Objects with Robot's Forearm

17 June 2019
Akansel Cosgun
Luke Ditria
Shayne D'Lima
Tom Drummond
ArXiv (abs)PDFHTML
Abstract

Grasping is the dominant approach for robot manipulation, but only a single object can be grasped at a time. Nonprehensile manipulation offers richer set of interactions, however state-of-the-art is limited to using the end-effector only. We propose using a robot link (forearm) to push multiple objects at once. In a simulated task where the robot's task is to sort two kinds of objects into their respective goal regions, we show that a greedy strategy that uses a combination of forearm pushes and pick and place operations reduces task completion time by %28 compared to picking and placing each object individually.

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