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Synthesizing Rulesets for Programmable Robotic Self-assembly: A Case Study Using Floating Miniaturized Robots

  • Bahar HaghighatEmail author
  • Brice Platerrier
  • Loic Waegeli
  • Alcherio Martinoli
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9882)

Abstract

Programmable stochastic self-assembly of modular robots provides promising means to formation of structures at different scales. Formalisms based on graph grammars and rule-based approaches have been previously published for controlling the self-assembly process. While several rule-synthesis algorithms have been proposed, formal synthesis of rulesets has only been shown for self-assembly of abstract graphs. Rules deployed on robotic modules are typically tuned starting from their abstract graph counterparts or designed manually. In this work, we extend the graph grammar formalism and propose a new encoding of the internal states of the robots. This allows formulating formal methods capable of automatically deriving the rules based on the morphology of the robots, in particular the number of connectors. The derived rules are directly applicable to robotic modules with no further tuning. In addition, our method allows for a reduced complexity in the rulesets. In order to illustrate the application of our method, we extend two synthesis algorithms from the literature, namely Singleton and Linchpin, to synthesize rules applicable to our floating robots. A microscopic simulation framework is developed to study the performance and transient behavior of the two algorithms. Finally, employing the generated rulesets, we conduct experiments with our robotic platform to demonstrate several assemblies.

Keywords

Internal State Abstract Graph State Label Graph Grammar Synthesis Algorithm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This work has been sponsored by the Swiss National Science Foundation under the grant numbers 200021_137838/1 and 200020_157191/1.

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Bahar Haghighat
    • 1
    Email author
  • Brice Platerrier
    • 1
  • Loic Waegeli
    • 1
  • Alcherio Martinoli
    • 1
  1. 1.Distributed Intelligent Systems and Algorithms Laboratory, School of Architecture, Civil and Environmental EngineeringÉcole Polytechnique Fédérale de LausanneLausanneSwitzerland

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