普适计算环境下服务发现问题的研究与进展

普适计算环境下，环境的结构、组成以及环境中的资源、服务都是动态变化的，而服务发现技术能够在动态变化的普适计算环境中动态查找、定位所需的服务，是解决普适计算环境异构性、实现不同应用集成的有效途径，因此逐渐成为普适计算中研究的一个热点和重点。基于此，本文总结、分析了当前已有的比较著名的普适计算服务发现协议并进行了分类比较，总结了各个方向上目前的研究进展，在此基础之上对今后的研究趋势进行了分析与展望。

Research and Development of Service Discovery Problem in Pervasive Computing Environments

In pervasive computing environments,the structure,composition,resources and services always change whereas service discovery technology can find and locate the requested services and provide a better resolution to in- tegrate various resources in pervasive computing environments.Because of this,service discovery problem becomes a hot spot and an important field in pervasive computing research.The existing service discovery protocols are analyzed and compared in the paper,and at last a summary and a prospect are proposed.