摘要： 随着计算机技术的发展，人们希望能方便地享用计算能力和信息服务，但是由于计算设备的多样性和设备之间多传输协议的多样性，资源的描述、发现和使用方式的差异，资源之间协作缺乏统一的标准，造成了使用计算设备的障碍。该文提出了一种在普及计算环境中的基础设施——PvCGrid，实现了多种传输协议的管理、设备和服务的发现，提供了用户可定制的组合服务的功能，使得用户可以发现和使用网络中的资源，并且可以根据发现的资源，定制出更加复杂的应用，该基础设施为普及计算提供了互连互通、资源共享和协同服务的技术支持。

关键词: 普及计算, 传输协议, 服务发现, 服务组合

Abstract: With the development of computation technology, people want to access the computation and information any time,any place with any device. The diversity of devices and transport protocols, the variety of resource description, discovery and use pattern, the difficulty of cooperation among resource make it difficult to use computation resource. This paper proposes PvCGrid——a pervasive computation services infrastructure. PvCGrid realizes the multiple transport protocol management, device and service discovery, and custom service composition, which can make people discover and use resource in network, and compose the complex application with the discovered resources. It provides the important functionality such as interconnection, intercommunication, resource share and cooperation for pervasive computation.

Key words: Pervasive computation, Transport protocol, Service discovery, Service composition

中图分类号: 

• TP393