基于Mobile Agent技术的空间信息移动服务  

Mobile Spatial Information Service Based on Mobile Agent technology

作　　者：方志祥[1] 李清泉[1] 

机构地区：[1]武汉大学测绘遥感信息工程国家重点实验室,湖北武汉430079

出　　处：《测绘学报》2004年第4期328-334,共7页Acta Geodaetica et Cartographica Sinica

基　　金：国家自然科学基金资助项目(40271093);湖北省重点科技攻关项目(2003AA104A01)

摘　　要：首先详细地分析空间信息移动服务的研究现状、技术路线和局限等问题,在此基础上概括空间信息移动服务的涵义与特征,然后提出一种基于MobileAgent技术的空间信息移动服务模型。该模型集成移动代理(MobileAgent)、WAP、XML、SVG、SOAP和J2EE/J2ME等技术,可以实现空间信息的移动计算、空间数据与服务功能的完全分离等,并且该模型还具备易构建性、自主性、移动性、协作性、安全性、智能性、并行计算和同异步处理等特性和良好的可扩展特征。针对此模型框架给出应用案例的算法描述及其结果,最后总结基于此模型的空间信息移动服务的一些优点,同时也指出向普适计算模式的空间信息服务发展的必然趋势。The state art of mobile spatial information service is analyzed in detail, and the technology schemes and its limitations are also described. Then the definition and application feature of mobile spatial information service are generalized on the base of the first section, and a mobile agent based mobile spatial information service model is presented, which adopted mobile agent technology, WAP,XML,SVG,SOAP, middleware and J2EE/J2ME to provide basic function of mobile computing, separation of data and functions, and facilitate it with constructability, autonomy , mobility, collaboration, security, intelligence, parallel computing, asynchronously computing, etc. The procedure of common application algorithm is depicted by means of using this model, and shows an result of shortest path planning in order to illuminate the feasibility, superiority and efficiency. At last, this paper concludes the merits of mobile spatial information service based on mobile agent technology, and points out the future direction of mobile spatial information service, that is ones based on pervasive computing.

关 键 词：AGENT技术 空间信息服务 移动服务 可扩展 普适计算 移动代理 J2EE 空间数据 模型集成 SVG 

分 类 号：P208[天文地球—地图制图学与地理信息工程] TP393[天文地球—测绘科学与技术]