Abstract
In this paper we present a distributed control architecture for a simulated hexapod robot with twelve degrees of freedom consisting of six homogeneous neural modules controlling the six corresponding legs that only have access to local sensory information and that coordinate by exchanging signals that diffuse in space like gaseous neuro-trasmitters. The free parameters of the neural modules are evolved and are selected on the basis of the distance travelled by the robot. Obtained results indicate how the six neural controllers are able to coordinate so to produce an effective walking behaviour and to adapt on the fly by selecting the gait that is most appropriate to the current robot/environmental circumstances. The analysis of the evolved neural controllers indicates that the six neural controllers synchronize and converge on an appropriate gait on the basis of extremely simple control mechanisms and that the effects of the physical interaction with the environment are exploited to coordinate and to converge on a tripod or tetrapod gait on the basis of the current circumstances.
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Gallagher, J., Beer, D.R., Espenschied, K., Quinn, R.D.: Application of evolved locomotion controllers to a hexapod robot. Robotics and Autonomous Systems 19, 95–103 (1996)
Ijspeert, A.J., Crespi, A., Cabelguen, J.M.: Simulation and robotics studies of salamander locomotion. Applying neurobiological principles to the control of locomotion in robots. Neuroinformatics 3(3), 171–196 (2005)
Hulse, M., Wischmann, S., Pasemann, F.: Structure and function of evolved neuro-controllers for autonomous robots. Connection Science 16(4), 249–266 (2004)
Nolfi, S., Floroeano, D.: Evolutionary Robotics: The Biology, Intelligence, and Technology of Self-Organizing Machines. MIT Press/Bradford Books (2000)
Kamimura, A., Murata, S., Yoshida, E., Kurokawa, H., Tomita, K., Kokaji, S.: Self-reconfigurable modular robot - experiments on reconfiguration and locomotion. In: Tarn, T.J., et al. (eds.) Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems. IEEE Press, New York (2001)
Yim, M., Zhang, Y., Duff, D.: Modular robots. IEEE Spectrum, 30–34 (2002)
Sims, K.: Evolving 3D morphology and behavior by competition. In: Brooks, R., Maes, P. (eds.) Proceedings of Fourth Conference on Artificial Life. MIT Press, Cambridge (1994)
Bongard, J., Pfeifer, R.: Evolving complete agents using artificial ontogeny. In: Hara, F., Pfeifer, R. (eds.) iMorpho-functional Machines: The New Species: Designing Embodied Intelligence. Springer, Berlin (2003)
Hornby, G.S., Pollack, J.B.: Creating high-level components with a generative representation for body-brain evolution. Artificial Life 8(3), 223–246 (2002)
Bianco, R., Nolfi, S.: Toward open-ended evolutionary robotics: evolving elementary robotic units able to self-assemble and self-reproduce. Connection Science 4, 227–248 (2004)
Mazzapioda, M., Nolfi, S.: Synchronization whitin Homogeneous Neural Modules Controlling a Simulated Hexapod Robot. In: Proceedings in AlifeX (in press, 2006)
Elphick, M.R., Kemenes, G., Staras, K., O’Shea, M.: Behavioural role for nitric oxide in chemosensory activation of feeding in a mollusc. Journal of Neuroscience 15(11), 7653–7664 (1995)
Elphick, M.R., Williams, L., O’Shea, M.: New Features of the locust optic lobe:evidence of a role for nitric oxide in insect vision. Journal of Experimental Biology 199, 2395–2407 (1996)
Husbands, P., Philippides, A., Smith, T.M.C., O’Shea, M.: Volume Signalling in Real and Robot Nervous Systems. Theory in Biosciences 120, 253–269 (2001)
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Mazzapioda, M., Nolfi, S. (2006). Synchronization and Gait Adaptation in Evolving Hexapod Robots. In: Nolfi, S., et al. From Animals to Animats 9. SAB 2006. Lecture Notes in Computer Science(), vol 4095. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11840541_10
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DOI: https://doi.org/10.1007/11840541_10
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-38608-7
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