arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1809.03151cs.RO
收藏

使用吸盘实现超快的拾取和放置

Critically fast pick-and-place with suction cups

Singapore Centre for 3D Printing(新加坡3D打印中心);Nanyang Technological University(南洋理工大学);Eureka Robotics Pte. Ltd.(尤里卡机器人私人有限公司)

Hung Pham, Quang-Cuong Pham

摘要:

带有吸盘的快速机器人拾取和放置是当前物流自动化发展的关键组成部分(工厂生产线,电子商务等)。“临界快”是指用于运输物体的最快可能的运动,使得物体不会从吸盘上滑落或掉落。主要困难是:(i)处理吸盘和物体之间的接触,这基本上涉及运动动力学约束;以及(ii)以低计算成本(通常为几百毫秒)这样做。为了解决这些困难,我们提出了(a)吸盘接触模型,(b)基于该模型识别接触稳定性约束的程序,以及(c)以时间最佳方式参数化任意几何路径的管道。在已识别的接触稳定性约束下。我们在一个物理机器人系统上实验验证了所提出的流水线:一个典型的拾取和放置任务的周期时间小于5秒,包括规划和执行时间。完整的管道作为机器人社区的开源发布。

英文摘要:

Fast robotics pick-and-place with suction cups is a crucial component in the current development of automation in logistics (factory lines, e-commerce, etc.). By "critically fast" we mean the fastest possible movement for transporting an object such that it does not slip or fall from the suction cup. The main difficulties are: (i) handling the contact between the suction cup and the object, which fundamentally involves kinodynamic constraints; and (ii) doing so at a low computational cost, typically a few hundreds of milliseconds. To address these difficulties, we propose (a) a model for suction cup contacts, (b) a procedure to identify the contact stability constraint based on that model, and (c) a pipeline to parameterize, in a time-optimal manner, arbitrary geometric paths under the identified contact stability constraint. We experimentally validate the proposed pipeline on a physical robot system: the cycle time for a typical pick-and-place task was less than 5 seconds, planning and execution times included. The full pipeline is released as open-source for the robotics community.

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。

↑