基于P2P的制造资源搜索引擎的研究与实现

资源共享是网格技术追求的目标之一，基于中心服务器的集中式系统虽然具有易控制、维护方便等优点，但同时带来了很多问题，如中心服务器会成为整个系统的瓶颈、通信效率较低、检索资源的范围仅仅局限于资源的提供者等。P2P中对等点（Peer）之间通过直接互连，实现动态共享资源。本文结合P2P的网络特点，构建了一个面向制造业的资源共享平台——制造资源搜索引擎（Manufacturing Resource Search Engine，MRSE），对其中的关键技术进行了研究、提出了基于XML的资源搜索策略，给出了XML的两种同步机制，并且在快速原型制造网格中实现了制造资源搜索引擎。

DESIGN OF MANUFACTURING RESOURCE SEARCH ENGINE BASED ON P2P

The resource sharing is one of aims of grid technology. Although the systems based on center server have many advantages, such as easy control and convenient maintenance, they bring some questions: the center server is the bottle neck of whole system, there is low communication efficiency and the resources are restricted to those enterprises who have submitted their resources. However in P2P, the resources are shared dynamically in the way of direct interconnection among different nodes. The major research effort of this paper is to build a resource sharing platform for manufacturing industry, Manufacturing Resource Search Engine (MRSE) based on P2P. Some key questions are studied, the strategies of resource-searching based on XML are put forward, and two synchronization mechanism of XML is given. MRSE is implemented in Rapid Prototyping Manufacturing Grid.