Funcionalidades basicas para um sistema interativo de sequenciamento em plantas multiproposito

AUTOR(ES)
DATA DE PUBLICAÇÃO

1998

RESUMO

This thesis presents the development of a scheduling interactive for multipurpose batch plants. Real scheduling problems have multiobjective characteristics. In this work the interactive system uses a single objective cost unction and leaves the user responsible for obtaining a good compromise between comfliting objectives.The model used in the optimization technique is based on the STN (State Task Network) representation and the formulation presented in [Kondili et ai, 1993J . A MILP (Mixed Integer Linear Problem) optimization algorithm is implemented in GAMS language. The interactive system developed in VISUAL BASIC allows the user to interact with the optimization algorithm. The main idea is, even if the system being extremely complex with many technological resource, the an should always interact to the dynamic events of the production systems. The interactive system allows the user to create different sceneries that allows him to simulate " What If" conditions, for example the analysis of letters of Gantt resulting on a reduction in the offer of shared resources. The choice of VISUAL BASIC as programming language as the base of the interactive system search, was made in order to facilitate the implementation of the functionalities previously mentioned, and to allow the development and implementation of different scheduling techniques on another languages through mechanisms of DLL (Dynamic Link Library) type

ASSUNTO(S)

agenda de execução (administração) interfaces de usuario (sistema de computador) interação homem-maquina

ACESSO AO ARTIGO

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