Publications / 2003 Proceedings of the 20th ISARC, Eindhoven, Holland

Dynamic Schedule Management Architecture Based on Parts and Packets Unified Product System

Eiji Arai, Akira Tsumaya, Hirokazu Watanabe, Hidefumi Wakamatsu, Keiichi Shirase
Pages 307-312 (2003 Proceedings of the 20th ISARC, Eindhoven, Holland, ISBN 978-90-6814-574-8, ISSN 2413-5844)

In a construction project, although the completion day of the project is clearly decided, construction schedule is often changed by the weather or the actual progress situation of the project. Therefore, when a difference arises between present state and the master schedule, it is necessary to adjust the construction schedule and to execute immediately. Besides, since a construction project is usually carried out as a cooperative work by many companies, how to transmit information smoothly and how to share them together are an important issue. In this paper, the dynamic scheduling management system architecture that is based on the parts and information packets unified technology is proposed.

We assumed that each part or unit has a data career, which handle such as identification number, position of the part, state of the part. Some of them re used to define the part’s identity. They are given as the initial data, and are unchangeable and static for each part. Another kind of information is changeable and dynamic.

Using these data, progress of the project process is compared with the master schedule. If the difference arises between them, scheduling system derived the present workability of each section/machine/people and dynamically re-schedule to optimize the processes.

A pilot system that realized our proposal is developed and applied to a case study. As a result, the system can derive the changing state of section/machine/people and make the dynamic re-schedule by using the data originating in the part or unit.

Keywords: Distributed System, Dynamic Scheduling, Parts and Packets Unified System Architecture, Production Process