Journal
ROBOTICS AND AUTONOMOUS SYSTEMS
Volume 54, Issue 2, Pages 97-103Publisher
ELSEVIER
DOI: 10.1016/j.robot.2005.09.018
Keywords
evolutionary robotics; swarm intelligence; swarm robotics; swarm-bot
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In this paper, we Study coordinated motion in a swarm robotic system, called a swarm-bot. A swann-bot is a self-assembling and self-organising artifact, composed of a swarm of s-bots, mobile robots with the ability to connect to and disconnect from each other. The swann-bot concept is particularly suited for tasks that require all-terrain navigation abilities, such as space exploration or rescue in collapsed buildings. As a first step toward the development of more complex control strategies, we investigate the case in which a swarm-bot has to explore an arena while avoiding falling into holes. In such a scenario, individual s-bots have sensory-motor limitations that prevent them navigating efficiently. These limitations can be overcome if the s-bots are made to cooperate. In particular, we exploit the s-bots' ability to physically connect to each other. In order to synthesise the s-bots' controller, we rely on artificial evolution, which we show to be a powerful tool for the production of simple and effective solutions to the hole avoidance task. (c) 2005 Elsevier B.V. All rights reserved.
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