【作者】 杨恒涛；

【导师】 袁满；

【作者基本信息】 大庆石油学院 ， 计算机应用技术， 2008， 硕士

【摘要】 GIS自从产生以来,以其强大的功能特性和方便快捷等优势,取得了迅猛的发展。随着应用需求的不断扩大以及移动终端设备性能的不断提高,将GIS系统迁移到手机等移动设备上,实现一种可移动的GIS系统便成为一种需求和趋势。但是,通过对国内外移动GIS的研究现状和发展趋势的研究和分析,发现目前主要的移动GIS解决方案都是基于WIN CE等特定的嵌入式操作系统,不具备良好的跨平台性。而且,这些解决方案都是ArcGIS、MapInfo等大型商业公司提出的商业性解决方案,它们大都价格昂贵、而且需要大型的空间数据库和复杂的GIS服务器。因此,本文通过对J2ME移动开发平台和W3C推出的标准矢量化绘图规范SVG的研究,提出了一个基于J2ME/SVG的移动GIS实现框架,从而实现了移动GIS系统的跨平台性,高效性和灵活的业务定制功能。本文首先对移动GIS实现模型和实现技术、J2ME、J2EE、SVG和XML等技术进行研究,然后基于对这些技术的研究基础之上提出了基于J2ME/SVG的移动GIS开发平台的总体框架,包括地理信息空间数据的建模与组织,数据的SVG编码规则,服务器端应用逻辑服务组件的设计,客户端移动GIS系统的功能设计,以及客户端与服务器端之间的数据通信模块设计。本文的最后给出了基于J2ME/SVG的移动GIS开发平台的实现,并结合油田领域实现了一个油田移动GIS系统,方便了油田地面工程信息以及生产信息的查询与展示。更多还原

【Abstract】 GIS has been developed rapidly with its powerful features and the advantages of convenient since it is generated. As the growing application requirements and the improving performance of the mobile terminal devices, it becomes a demand and trend to migrate the GIS system to mobile phones and other mobile devices so to implement the mobile GIS system. However, after we do some research and analysises about the status of the mobile GIS research and the development trends, both domesticaly and internationaly, we find that the main mobile GIS solutions are based on WIN CE, and other specific embedded operating system, but they do not have good cross-platform feature. Moreover, these solutions are business solutions brought out by ArcGIS, MapInfo and other large commercial companies, and most of them are expensive and require large-scale spatial database and complex GIS server. Therefore, through the research of J2ME mobile development platform and SVG, which is the standard vector graphics technical specification proposed by W3C, the paper proposes a mobile GIS implementation framework based on J2ME and SVG, which realizes the cross-platform feature, high efficiency and flexible business customization.In this paper, we do in-depth studies of the implementation Model and technologies about mobile GIS, the technologies of J2ME, J2EE, SVG and XML and so on. Then, on the basis of the above studies, we propose the Overall framework of the mobile GIS development platform based on J2ME and SVG, including the data modeling and the organizing of the geographic information, the data coding rules in the SVG document, the designing of the logic service components in the server-side, the function designing of the client-side of the Mobile GIS system, as well as the designing of the data communication between the client and server-side.At the last of this paper, we give the implementation of the Mobile GIS development platform, and apply it to the Oil field, completing an oil mobile GIS system. It bring convenient of the information querying and displaying of the ground engineering and the oil gas production.更多还原