可重构装配线多agent系统中的本体研究

Research on Ontologies in Multi Agent System of Reconfigurable Assembly Line

提供多agent制造平台agent之间通讯所需的机器可理解的通讯内容语言,是构建多agent制造平台的重要内容。分析与总结出可重构装配线多agent平台对其本体模型存在提供装配制造知识及支持重构过程两方面需求,并因此将本体模型划分为通用本体与重构本体两部分。以某汽车变速器可重构装配生产线为背景,研究该环境下的具体本体建模技术。在设计了描述装配线制造知识与制造机理的通用本体基础上,通过分析可重构装配线多agent平台的重构机理,定义了由具有装配行为特征的重构动作原语组成的重构本体。构建的本体模型已应用于重构装配线多agent平台的开发。

Ontology is significant for providing communication content language in multi agent manufacturing platform. Requirement of multi agent manufacturing ontology for reconfigurable assembly line was analyzed, and conclusion was made that providing general assembly knowledge and supporting reconfiguration procedure are two important issues and accordingly assembly line ontology was classified as general knowledge ontology and reconfiguration ontology. Reconfigurable assembly line of automotive transmission was made as background and ontology modeling based on this practical manufacturing background was studied. General knowledge ontology was defined by terminology abstraction and property design, Ontology modeling methods were applied to describe relation of product family, assembly process, assembly equipment and assembly line configuration. Also reconfiguration ontology was constructed by performatives reflecting assembly operational knowledge during system reconfiguration and was used to specify the assembly ability of agents. This ontology was used in the multi agent system of reconfigurable assembly line.