Design and characterization of the EP-Face connector

We present the EP-Face connector, a novel connector for hybrid chain-lattice type modular robots that is highstrength (88.4N), compact, fast, power efficient, and robust to position errors. The connector consists of an array of electro-permanent magnets (EP magnets) embedded in a planar face. EP magnets are solid-state magnets that can be turned on and off and require power only when changing state. In this paper, we present the design of the connector, manufacturing process, detailed experimental characterization of the connector strength under different loading conditions, and compare its performance to existing magnetic and mechanical connectors. We also illustrate the functional benefits of the EPFace by demonstrating reconfiguration with the SMORES-EP robot.

[1]  Mark Yim,et al.  Telecubes: mechanical design of a module for self-reconfigurable robotics , 2002, Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No.02CH37292).

[2]  Iuliu Vasilescu,et al.  Miche: Modular Shape Formation by Self-Disassembly , 2008, Proceedings 2007 IEEE International Conference on Robotics and Automation.

[3]  Mark H. Yim,et al.  Evolution of PolyBot: A Modular Reconfigurable Robot , 2002 .

[4]  Mark Yim,et al.  The X-Face: An improved planar passive mechanical connector for modular self-reconfigurable robots , 2012, 2012 IEEE/RSJ International Conference on Intelligent Robots and Systems.

[5]  Ara Knaian,et al.  Electropermanent magnetic connectors and actuators: devices and their application in programmable matter , 2010 .

[6]  Daniela Rus,et al.  Robot pebbles: One centimeter modules for programmable matter through self-disassembly , 2010, 2010 IEEE International Conference on Robotics and Automation.

[7]  Mark Yim,et al.  Modular Advantage and Kinematic Decoupling in Gravity Compensated Robotic Systems , 2013 .

[8]  Ying Zhang,et al.  Modular Reconfigurable Robots in Space Applications , 2003, Auton. Robots.

[9]  D. Dugdale,et al.  Magnetic properties of materials , 1993 .

[10]  Satoshi Murata,et al.  Distributed Self-Reconfiguration of M-TRAN III Modular Robotic System , 2008, Int. J. Robotics Res..

[11]  Henrik Hautop Lund,et al.  Design of the ATRON lattice-based self-reconfigurable robot , 2006, Auton. Robots.

[12]  Neil Gershenfeld,et al.  The Milli-Motein: A self-folding chain of programmable matter with a one centimeter module pitch , 2012, 2012 IEEE/RSJ International Conference on Intelligent Robots and Systems.

[13]  Paul J. White,et al.  Miniaturization methods for modular robotics: External actuation and dielectric elastomer actuation , 2011 .

[14]  Mark H. Yim,et al.  Modular Reconfigurable Robots, An Approach To Urban Search and Rescue , 2002 .

[15]  Wei-Min Shen,et al.  SINGO: A single-end-operative and genderless connector for self-reconfiguration, self-assembly and self-healing , 2009, 2009 IEEE International Conference on Robotics and Automation.

[16]  Alcherio Martinoli,et al.  Lily: A miniature floating robotic platform for programmable stochastic self-assembly , 2015, 2015 IEEE International Conference on Robotics and Automation (ICRA).

[17]  Gregory S. Chirikjian,et al.  Modular Self-Reconfigurable Robot Systems [Grand Challenges of Robotics] , 2007, IEEE Robotics & Automation Magazine.

[18]  FrantiĹĄek TrebuĹa,et al.  Self-Reconfigurable Modular Robotic System , 2012 .

[19]  Emulating self-reconfigurable robots - design of the SMORES system , 2012, 2012 IEEE/RSJ International Conference on Intelligent Robots and Systems.

[20]  Kasper Stoy,et al.  Self-Reconfigurable Robots: An Introduction , 2010 .

[21]  Eiichi Yoshida,et al.  M-TRAN: self-reconfigurable modular robotic system , 2002 .