Research On The WSRF-based Manufacturing Resources Encapsulation In Manufacturing Grid

With the development of network technology and economy globalization, manufacturing industry faces with the competition of global markets, resources, technology and talent. In this environment, manufacturing enterprises urgently need rapid integration of a variety of resources, extensive inter-firm collaboration and timely response to rapidly meet market demand. By making use of grid technology and information-sharing technology, Manufacturing grid can encapsulate resources to open grid services and then provide high-quality services to users, achieving transparent and effective sharing. How to describe and encapsulate manufacture resources, facilitating the access to resources, is a basic problem of Manufacturing grid. The paper make an depth research on the modeling, description and encapsulating of manufacturing resources. The main contributions of the thesis are as follows:(1) A method of modeling manufacturing resources is put forward. Modeling Manufacturing Resource is the basis for standardizing the management in the network environment. Classification model is proposed based on analysis of the characteristic of Manufacturing resources. It is researched that Manufacturing resources can be divided into the physical resources, human resources and service resources. The attributes of resources can be divided into the basic properties, processing properties and the task attributes, facilitating the description of resources. UML diagram of the manufacturing resources is also established.(2) A XML-based description method is discussed and solved. Combining networked manufacturing environment. an expression is proposed to represent resources into a unified form of triples, and the resources is researched to describing by XML. A example is used to explain the process.(3) Resources encapsulation is researched. Binding WSRF specification, stateful manufacturing resources are encapsulated to WS-Resource after the process of attribute analysis, XML description and combining of web services. It is also discussed the proces of Creating WS-Resource by Factory Service and accessing by Instance Service, achieving encapulating resources to physical service. A physical service selection algorithm is proposed, so that users would no longer be dependent on the physical services, but can dynamically choose services according to business needs. In that case, the physical changes would not affect the implementation of the application. Finally, combining of the actual needs of equipment resources, operations and the properties of equipment resources are analyzeed, achieving the equipment resources encapsualtion.