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Abstract

External actuation in self-reconfigurable modular robots promises to allow modules to shrink down in size. Synchronous external motions promise to allow fast convergence and assembly times. XBot is a modular system that uses synchronous external actuation, but has a limited range of reachable configurations stemming from a single motion primitive of a module rotating about another. This paper proposes to extend the motion primitives by using moves with two modules swinging in a dynamic chain. The feasibility of these motion primitives is proven experimentally. A parameterization of the external actuation motion profiles is explored to define a space of physically valid motion profiles. The larger the space, the more robust the motion primitives will be to inexact initial conditions and to imprecision in the external actuation mechanisms. In addition, this paper proves that a configuration of XBot meta-modules can reach any configuration using just these motion primitives.

Keywords

modular self-reconfigurable robotics external actuation

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References

An, B.K. ( 2008). EM-cube: cube-shaped, self-reconfigurable robots sliding on structure surfaces . In Proceedings of IEEE/RSJ International Conference on Robotics and Automation, Pasadena, CA, pp. 3149-3155.

Bishop, J. , Burden, S. , Klavins, E. , Kreisberg, R. , Malone, W. , Napp, N. , and Nguyen, T. ( 2005). Programmable parts: a demonstration of the grammatical approach to self-organization . In Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, Edmonton, pp. 3684-3691.

Campbell, J. , Pillai, P. , and Goldstein, S.C. ( 2005). The robot is the tether: active, adaptive power routing modular robots with unary inter-robot connectors . In Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, Edmonton, p. 4108.

Chirikjian, G. ( 1994). Kinematics of a metamorphic robotic system . In Proceedings of IEEE/RSJ International Conference on Robotics and Automation, vol. 1, pp. 449-455.

Christensen, D.J. , Ostergaard, E.H. , and Lund, H.H. ( 2004). Metamodule control for the ATRON self-reconfigurable robotic system . In Proceedings of the 8th Conference on Intelligent Autonomous Systems (IAS-8), Amsterdam, pp. 685- 692.

Fukuda, T. and Nakagawa, S. ( 1988). Dynamically reconfigurable robotic system . In Proceedings of IEEE/RSJ International Conference Robotics and Automation, vol. 3, pp. 1581-1586.

Gilpin, K. , Kotay, K. , Rus, D. , and Vasilescu, I. ( 2008). Miche: Modular shape formation by self-disassembly . The International Journal of Robotics Research, 27(3-4): 345-372.

Harary, F. and Palmer, E.M. ( 1973). Graphical Enumeration. Academic Press .

Jorgensen, M.W. , Ostergaard, E.H. , and Lund, H.H. ( 2004). Modular ATRON: Modules for a self-reconfigurable robot . In Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, Sendai, Japan, vol. 2, pp. 2068-2073.

10.

McGray, C. and Rus, D. ( 1998). Self-reconfiguring molecules as 3D metamorphic robots . In Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, Victoria , vol. 2, pp. 837-842.

11.

Murata, S. , Kurokawa, H. , and Kokaji, S. ( 1994). Self-assembling machine . In Proceedings of IEEE/RSJ IEEE International Conference on Robotics and Automation , San Diego, pp. 441-448.

12.

Murata, S. , Kurokawa, H. , Yoshida, E. , Tomita, K. , and Kokaji, S. ( 1998). A 3-d self-reconfigurable structure . In Proceedings of IEEE/RSJ IEEE International Conference on Robotics and Automation, Leuven, Belgium, vol. 1, pp. 432-439.

13.

Nguyen, A. , Guibas, L. , and Yim, M. ( 2001). Controlled module density helps reconfiguration planning . In Algorithmic and Computational Robotics: New Directions: The Fourth Workshop on the Algorithmic Foundations, (WAFR) .

14.

Rus, D. and Vona, M. ( 1999). Self-reconfiguration planning with compressible unit modules . In Proceedings of IEEE/RSJ IEEE International Conference on Robotics and Automation , Detroit, vol. 4, pp. 2513-2520.

15.

Suh, J.W. , Homans, S.B. , and Yim, M. ( 2002). Telecubes: mechanical design of a module for self-reconfigurable robotics . In Proceedings of IEEE/RSJ IEEE International Conference on Robotics and Automation, Washington, DC, vol. 4, pp. 4095-4101.

16.

Unsal, C. and Khosla, P.K. ( 2001). A multi-layered planner for self-reconfiguration of a uniform group of I-Cube modules . In Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, Maui, vol. 1, pp. 598- 605.

17.

Unsal, C. , Kiliccote, H. , and Khosla, P. ( 1999). I(CES)-Cubes: A modular self-reconfigurable bipartite robotic system . In SPIE Proceedings, Conference on Mobile Robots and Autonomous Systems. SPIE.

18.

Vassilvitskii, S. , Kubica, J. , Rieffel, E. , Suh, J. , and Yim, M. ( 2002a). On the general reconfiguration problem for expanding cube style modular robots . In IEEE/RSJ International Conference on Robotics and Automation, vol. 1, pp. 801-808.

19.

Vassilvitskii, S. , Yim, M. , and Suh, J. ( 2002b). A complete, local and parallel reconfiguration algorithm for cube style modular robots . In Proceedings of IEEE/RSJ IEEE International Conference on Robotics and Automation, Washington, DC, vol. 1, pp. 117-125.

20.

White, P. , Zykov, V. , Bongard, J. , and Lipson, H. ( 2005). Three dimensional stochastic reconfiguration of modular robots. In Robotics: Science and Systems, Cambridge , pp. 161- 168.

21.

White, P.J. , Kopanski, K. , and Lipson, H. ( 2004). Stochastic self-reconfigurable cellular robotics . In Proceedings of IEEE/RSJ IEEE International Conference on Robotics and Automation, New Orleans, LA , vol. 3, pp. 2888-2893.

22.

White, P.J. and Yim, M. ( 2007). Scalable modular self-reconfigurable robots using external actuation . In Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, San Diego , pp. 2773-2778.

23.

Yim, M. , Shen, W.-M. , Salemi, B. , Rus, D. , Moll, M. , Lipson, H. , Klavins, E. , and Chirikjian, G.S. (2007). Modular self-reconfigurable robot systems [grand challenges of robotics] . IEEE Robotics and Automation Magazine, 14(1): 43 .

24.

Yim, M.H. , Goldberg, D. , and Casal, A. ( 2000). Connectivity planning for closed-chain reconfiguration . Sensor Fusion and Decentralized Control in Robotic Systems III, 4196(1):402-412.

25.

Yoon, Y. and Rus, D. ( 2007). Shady3D: A robot that climbs 3D trusses . In Proceedings of IEEE/RSJ International Conference on Robotics and Automation, Rome, Italy, pp. 4071- 4076.

26.

Yun, S. and Rus, D. ( 2008). Self assembly of modular manipulators with active and passive modules . In Proceedings of IEEE/RSJ International Conference on Robotics and Automation, Pasadena, CA (to appear).

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