Local Heuristics Analysis in the Automatic Computation of Assembly Sequences for Building Structures with Multiple Aerial Robots

  • Alvaro Sempere
  • Domingo Llorente
  • Ivan Maza
  • Aníbal Ollero
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 252)

Abstract

This paper deals with the automatic computation of the assembly sequence for building truss structures from their 3D geometrical analysis. This functionality is part of the autonomous planning architecture of a team of aerial robots equipped with on-board robotic arms. The mission of the team is the construction of a structure in places where the access is difficult by conventional means. The assembly sequence is computed by applying the well known “assembly-by-disassembly” technique to the Non-Directional Blocking Graphs (NDBG) obtained from the geometrical analysis of the structure. In this paper two novel local heuristics are presented to solve the assembly problem: the former is based on the number of free nodes in the graphs and the latter is related to the size of the resulting connected subgraphs when each disconnection is applied to a set of parts. Both techniques are designed to compute the assembly sequence that allows to parallelize the building process of the structure if enough robots are available. Simulation results as well as experimental results with an aerial robot are presented in the paper.

Keywords

local heuristics automated assembly aerial manipulation autonomous planning NDBG graphs 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Alvaro Sempere
    • 1
  • Domingo Llorente
    • 1
  • Ivan Maza
    • 1
  • Aníbal Ollero
    • 1
  1. 1.Grupo de Robótica, Visión y ControlUniversidad de SevillaSevillaSpain

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