期刊
ROBOTICS AND AUTONOMOUS SYSTEMS
卷 54, 期 2, 页码 135-141出版社
ELSEVIER
DOI: 10.1016/j.robot.2005.09.017
关键词
self-reconfigurable robots; distributed control
Self-reconfigurable robots are built from modules, which are autonomously able to change the way they are connected. Such a robot can, through this self-reconfiguration process, change its shape. The process has proved to be difficult to control, because it involves control of a distributed system of mechanically Coupled modules connected in time-varying ways. In this paper we present an approach to the control problem where the desired configuration is grown from an initial seed module. Seeds produce growth by creating a gradient in the system, using local communication, which spare modules descend to locate the seed. The growth is guided by a cellular automaton, which is automatically generated on the basis of a three-dimensional CAD model or a mathematical description of the desired configuration. The approach is evaluated in simulation and we find that the self-reconfiguration process always converges and the time to complete a configuration scales approximately linearly with the number of modules. However, an open question is how the simulation results transfer to a physically realized self-reconfigurable robot. (c) 2005 Elsevier B.V. All rights reserved.
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