To flock or not to flock: the pros and cons of flocking in long-range "migration" of mobile robot swarms

  • Authors:
  • Fatih Gökçe;Erol Şahin

  • Affiliations:
  • Middle East Technical Univ., Ankara, Turkey;Middle East Technical Univ., Ankara, Turkey

  • Venue:
  • Proceedings of The 8th International Conference on Autonomous Agents and Multiagent Systems - Volume 1
  • Year:
  • 2009

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Abstract

This study investigates the pros and cons of flocking in long-range "migration" of mobile robot swarms under the influence of different factors. We present a flocking behavior consisting of three simple behaviors: heading alignment, proximal control, and alignment to the desired homing direction. The behavior drives a flock of robots from one location to another by sensing the magnetic field of the Earth. We propose that four factors influence the accuracy of reaching a particular location with the proposed behavior; namely, averaging through the heading alignment behavior, the noise in sensing the homing direction, the differences in the characteristics of the individuals, and the disturbances caused by proximal control behavior. In a series of systematic experiments conducted with both physical and simulated robots, we evaluate the effects of these factors in the accuracy of long-range "migrations" of flocks.