A Study on Design and Management of Autonomous Distributed Manufacturing System

本研究的目的是建立一个由一套自主制造设备和零件组成的自主分布式制造系统的设计和管理的系统方法。1.自主分布式制造系统的体系结构从决策功能、通信功能和控制功能三个方面讨论和分析了制造系统各组成部分的自主功能。通过分析，阐明了自主制造设备与自主工件之间的协同在自主分布式制造系统的设计与管理中起着关键作用。自主分布式制造系统仿真系统的开发基于面向对象的模型开发了仿真系统，以表示制造系统中各自治元素之间的协作功能，并模拟制造系统的自主控制。开发了机械产品批量生产和飞机复合材料零件流水线生产两种仿真系统。基于所提出的模型开发了自主实时调度系统。仿真结果表明，自主实时调度方法能有效地为制造系统中的单个设备和零件确定合适的调度方案。

The objective of the present research is to establish systematic methods for design and management of an autonomous distributed manufacturing system which consists of a set of autonomous manufacturing equipment and workpieces. The results of the research are summarized as follows ;1. Architecture of autonomous distributed manufacturing systemAutonomous functions of individual components of the manufacturing system are discussed and analyzed from the viewpoint of decision making, communication and control functions. It was clarified, through the analysis, that the cooperation between the autonomous manufacturing equipment and the autonomous workpieces play a key role in the design and management of the autonomous distributed manufacturing systems.2. Development of simulation systems of the autonomous distributed manufacturing systemsSimulation systems have been developed based on the object oriented model in order to represent the cooperative function among the autonomous elements in the manufacturing systems and to simulate autonomous controls of the manufacturing systems. Two types of simulation systems have been developed for both the batch type production of mechanical products and the line type production of the composite parts for air crafts.3. Application to autonomous real-time schedulingReal-time scheduling systems have been developed based on the models proposed 2. It was clarified, through the simulations, that the autonomous real-time scheduling methods are effective to determine suitable schedules for the individual equipment and workpieces in the manufacturing systems.