一种基于位置的移动服务系统的设计与实现

基于位置的移动服务需要设计高效、稳定和可扩展的体系结构与开发方式,提出了一种基于Web服务的LBS体系结构(WS-LBS),并设计了WS-LBS系统框架,实现了空间信息服务的构建与发布机制,扩展了终端用户,实现了一个WS-LBS原型系统。

Design and Implementation for Mobile Services System Based on Location

To meet the demands of efficient,stable and scalable architecture and implementation techniques of location-based mobile services,this paper proposes an architecture for LBS based on Web service technologies,i.e.,Web Service-based LBS(WS-LBS).WS-LBS has multi-layers,and consists of database server,global spatial information servers,local spatial information servers and mobile clients.Web service technologies are(adopted) in WS-LBS.UDDI is used to publish global spatial information services,and URL address is used for local spatial information services publishing.At the mobile client site,SOAP client technology is adopted for end-users to access to remote spatial information services.Two kinds of WS-LBS clients are implemented,i.e.J2ME client and WinCE client.A WS-LBS prototype is implemented by Java and C~# languages,providing transparent access to distributed spatial information services for various mobile end-users.