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Probability-Based Time-Optimal Motion Planning of Multi-robots Along Specified Paths

  • Haonan Wang
  • , Biao Hu
  • , Zhengcai Cao*
  • *Corresponding author for this work
  • Beijing University of Chemical Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, we study the time-optimal motion planning problem for multi-robots under their kinodynamic constraints along specified paths. Unlike previous approaches that coordinate their motions only at a road intersection and without considering noise influence, we for the first time use the probabilistic motion model caused by the noise when planning robot motion. By deriving the conflict probability, we design a scheme to sufficiently guarantee conflict probability below our expectation. In particular, we map the potential conflict to the infeasible rectangle region in robot’s path-time coordinate plane, which enables us to apply velocity interval propagation to find a time-optimal motion for each robot. Then we integrate our approach into two popular multi-robot motion planners, i.e., conflict-based search and prioritized planning approach. Experimental results demonstrate that, conflict-based search needs more computation time to achieve less motion time than prioritized motion planner.

Original languageEnglish
Title of host publicationRobotics and Rehabilitation Intelligence - First International Conference, ICRRI 2020, Proceedings
EditorsJianhua Qian, Honghai Liu, Dalin Zhou, Jiangtao Cao
PublisherSpringer Science and Business Media Deutschland GmbH
Pages138-153
Number of pages16
ISBN (Print)9789813349315
DOIs
StatePublished - 2020
Externally publishedYes
Event1st International Conference on Robotics and Rehabilitation Intelligence, ICRRI 2020 - Fushun, China
Duration: 9 Sep 202011 Sep 2020

Publication series

NameCommunications in Computer and Information Science
Volume1336
ISSN (Print)1865-0929
ISSN (Electronic)1865-0937

Conference

Conference1st International Conference on Robotics and Rehabilitation Intelligence, ICRRI 2020
Country/TerritoryChina
CityFushun
Period9/09/2011/09/20

Keywords

  • Motion planning
  • Multi-robot system
  • Optimization
  • Probability analysis

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