Abstract: In the network manufacturing, there are a lot of manufacturing resource informations needed to be shared. Aimed at the limited capacity of service delivery and the network bandwidth bottlenecks of the realization platform and the inconvenient management of the shared resources, a sharing model of more to more is presented based on the traditional sharing model of centralized ASP and the P2P ideas. It stores the shared resources in the autonomous node, and the sharing is directly completed between the request and provider under the supervision of the P2P platform. Based on this model, a P2P platform construction is built. According to the platform, a P2P network topology and the query are described, and the shared resources are modeling using the object-oriented thought. And a two-way hierarchical trust mechanism is used to ensure the security of shared resources. The experimental results show the feasibility and validity of the method.

Key words: manufacturing resource, peer to peer network, more to more sharing model, searching, security mechanism

摘要： 网络化制造需要共享大量制造资源信息。针对现有共享模式的服务提供能力有限，且实现平台存在网络带宽瓶颈和资源管理不方便等问题，根据P2P思想和传统集中式ASP共享模型，提出了一种多对多共享模式，将共享资源元数据信息发布在P2P网络中，而资源分别存放在提供者本地，请求者和共享者在P2P平台监督下直接协商完成共享。基于此模式，建立了一种基于P2P网络的资源共享平台框架。介绍了框架的P2P网络拓扑结构，利用面向对象思想对共享制造资源建模，采用资源元数据索引信息实现资源的查询，并利用双向分层信任机制确保了共享资源的安全性。通过实验结果表明了该研究开发工作的可行性和有效性。

关键词: 制造资源, 对等网络, 多对多共享模式, 搜索, 安全机制