Multi-robot, dynamic task allocation: a case study

  • Authors:
  • Soheil Keshmiri;Shahram Payandeh

  • Affiliations:
  • Experimental Robotics Laboratory, School of Engineering Science, Simon Fraser University, Burnaby, Canada;Experimental Robotics Laboratory, School of Engineering Science, Simon Fraser University, Burnaby, Canada

  • Venue:
  • Intelligent Service Robotics
  • Year:
  • 2013

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Abstract

This article presents a subgrouping approach to the multi-robot, dynamic multi-task allocation problem. It utilizes the percentile values of the distributional information of the tasks to reduce the task space into a number of subgroups that are equal to the number of robotic agents. The subgrouping procedure takes place at run-time and at every designated decision-cycle to update the elements of these subgroups using the relocation information of the elements of the task space. Furthermore, it reduces the complexity of the decision-making process proportional to the number of agents via introduction of the virtual representatives for these subgroups. The coordination strategy then uses the votes of the robotic agents for these virtual representatives to allocate the available subgroups. We use the elapsed time, the distance traveled, and the frequency of the decision-cycle as metrics to analyze the performance of this strategy in contrast to the prioritization, the instantaneous, and the time-extended coordination strategies.