基于多agent的车间制造系统控制结构及控制技术分析.docx

摘鉴 2002年12月
构建基于XML的车f目J,N造标记语言,作为车间多Agent系统通信的内容描述语言,并在KQML原语的基础上扩充了新的车间执行原语。
在对国家“九五”科技攻关项目延伸和扩展的基础上,设计了车间控制方式的
实验原型,应用UML构造了Agent的基本编程框架,给出了相应的调度实例。
关键词: 车间制造系统,控制结构,动态调度, 多Agent系统,遗传算法,XML
Abstract
Globalization and information development is changing the manufacturing environment,and in turn profoundly influencing a wjde range of areas including traditional management,control anization structure and decision-making rules. As an important part of the manufacturing system,shop floor affects the agility and intelligence of the whole control architecture essentially determines the
enterprise’s production efficiency petition ability in the work and distributed artificial intelligence provide fundamental technologies for research on shOp floor control this thesis,we studied multi-agent based control architecture and scheduling worked shop floor.
In the thesis,the background of agent is introduced and the characteristics of Multi-Agent System(MAS)based on academic studies of single agent are summarized. The essential characteristics of agent,such as apperception,autonomy,cooperativity are clarified and munication and cooperation among agents are analyzed,
and the modeling rules ofMAS applied in manufacturing system are presented.
We proposed an order—oriented shop floor control model,which is based on MAS
and dynamic—logical cell to e the weakness of the existing distributed and hierarchical model is divided into three layers,namely the shop floor layer, the dynamic cell layer and the equipment tasks of shop floor layer ale to and administrate dynamic_logical cell is the core ofthe dynamic cell layer,anizes manufacturing resoul℃es in the level of process
planning of equipment layer posed of resource agents which are categorized by their characteristics and scheduled by the schedule agent of the corresponding type.
In the existing floor shop,manufacturing resources are usually disp