The Use of Expert Systems Associated to Agents for Routing Suggestions for Service Orders

Conference paper

DOI: 10.1007/978-0-85729-024-3_9

Part of the Advanced Concurrent Engineering book series (ACENG)
Cite this paper as:
Zattar I.C., Ferreira J.C.E. (2010) The Use of Expert Systems Associated to Agents for Routing Suggestions for Service Orders. In: Pokojski J., Fukuda S., Salwiński J. (eds) New World Situation: New Directions in Concurrent Engineering. Advanced Concurrent Engineering. Springer, London

Abstract

In dynamic environments, a great obstacle for the integration between process planning and production scheduling is the lack of flexibility for the analysis of alternative resources during the allocation of the jobs on the shop floor. In this phase the process plan is treated as fixed, that is, scheduling does not consider all the possible manufacturing combinations. In order to solve this problem, it was proposed and developed a multiagent system that enables the use of process plans with on-line alternatives. After implementing the system, a large number of tests were carried out, resulting in a database with more than 12,000 simulations. By analyzing the results, it was observed that despite shorter makespan and flow times were attained, the standard deviation was high when comparing with other approaches found in the literature. As the problem is significantly complex, involving many parts, resources and alternative plans, an Expert Agent based on the Java Expert System Shell (JESS) language was implemented which, through the application of rules, filters the information in the database of simulations and provides the system with an adequate suggestion of the route to be executed.

Keywords

Multiagent systems Expert systems Routing 

Copyright information

© Springer-Verlag London Limited 2010

Authors and Affiliations

  1. 1.Universidade Federal do Paraná, Setor de TecnologiaCuritibaBrazil
  2. 2.Universidade Federal de Santa CatarinaSanta CatarinaBrazil

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