Bacterial memetic algorithm for simultaneous optimization of path planning and flow shop scheduling problems

  • Authors:

  • János Botzheim;Yuichiro Toda;Naoyuki Kubota

  • Affiliations:

  • Graduate School of System Design, Tokyo Metropolitan University, Hino, Japan 191-0065 and Department of Automation, Széchenyi István University, Győr, Hungary 9026;Graduate School of System Design, Tokyo Metropolitan University, Hino, Japan 191-0065;Graduate School of System Design, Tokyo Metropolitan University, Hino, Japan 191-0065

  • Venue:
  • Artificial Life and Robotics
  • Year:
  • 2012

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Abstract

The paper deals with simultaneous optimization of path planning of mobile robots and flow shop scheduling problem. The goal of the path planning problem is to determine an optimal collision-free path between a start and a target point for a mobile robot in an environment surrounded by obstacles. The objective is to minimize the path length without colliding with an obstacle. On the other hand, shop scheduling problems deal with processing a given set of jobs on a given number of machines. Each operation has an associated machine on which it has to be processed for a given length of time. The problem is to minimize the overall time demand of the whole process. In this paper, we deal with two robots carrying items between the machines. Bacterial memetic algorithm is proposed for solving this combined problem. The algorithm is verified by experimental simulations and compared to classical techniques.