位置服务中多源空间信息应用集成的研究

发布时间：2018-01-20 08:28

本文关键词： 位置服务多源空间信息数据模型用户行为情境　出处：《长安大学》2013年硕士论文　论文类型：学位论文

【摘要】：随着移动定位技术、地理信息系统、无线通讯网络、互联网技术的迅猛发展，基于位置的服务（Location Based Services，LBS）的应用也随着迅速发展。位置服务是根据用户所在位置提供的一种增值业务服务，主要通过移动定位技术获取用户的所在位置，在电子地图和业务平台的支持下，为用户提供与位置相关的信息服务。位置服务产业的核心是地理空间数据的生产和使用。与位置服务相关的空间数据的生产往往需要耗费大量的人力、物力和财力，同时这些空间数据质量的好坏直接决定了企业的竞争力。因此，如果能够综合利用已有的多种格式和来源的空间数据信息资源和服务资源，使其能够优势互补，那么位置服务相关地理数据的生产成本可以大幅降低，服务质量也能获得提高。本文对位置服务中多源空间信息应用集成的方法进行探讨，主要内容和成果概括如下：（1）首先分析了位置服务中多源空间信息应用集成的必要性，阐述了国内外位置服务地理数据的发展现状，以及位置服务的现状、形式、应用领域、特点和目前主要存在的问题。（2）论述了多源空间数据的三种集成框架，并阐述了多源数据集成的空间基准统一问题，包括坐标系统、高程基准的统一、投影变换。同时，，分析了面向对象的数据模型的特点和要素。（3）以位置服务的用户行为情境模式建模方式为依据，根据对用户行为情境模式的分析，选择用户所关注的主要空间信息进行集成，从而避免信息的冗余加重网络和终端的负担，提出了多源空间信息集成的方法。（4）基于开源GIS中间件的开发方式，采用OGC空间数据模型，利用Java语言开发了多源空间数据集成系统。该系统支持多源数据的访问、显示、符号化以及OGC服务发布，通过该系统可以方便地制作适用于基于位置的服务所需的专题地图。最后给出本系统的实际案例，验证了本系统可以为位置服务相关问题提供数据支持。
[Abstract]:With the rapid development of mobile location technology, geographic information system (GIS), wireless communication network and Internet technology, location Based Services is based on location. The application of LBS) also develops rapidly. Location service is a kind of value-added service service which is provided according to the location of the user. It mainly obtains the location of the user by mobile location technology. With the support of electronic map and business platform, users are provided with location-related information services. The core of location service industry is the production and use of geospatial data, and the production of spatial data related to location services often requires a lot of manpower, material and financial resources. At the same time, the quality of these spatial data directly determines the competitiveness of enterprises. Therefore, if we can make comprehensive use of existing spatial data information resources and service resources of various formats and sources, so that they can complement each other. Then the production cost of geographical data related to location services can be greatly reduced and the quality of service can be improved. This paper discusses the method of multi-source spatial information application integration in location services. The main elements and outcomes are summarized as follows: Firstly, the necessity of multi-source spatial information application integration in location service is analyzed, and the development status of geographical data of location service at home and abroad, as well as the status quo, form and application field of location service are expounded. Characteristics and current main problems. This paper discusses three kinds of integration frameworks of multi-source spatial data, and expounds the spatial datum unification of multi-source data integration, including coordinate system, elevation datum unification, projection transformation. The characteristics and elements of the object-oriented data model are analyzed. Based on the modeling of user behavior situation pattern of location service, according to the analysis of user behavior situation pattern, the main spatial information concerned by users is selected for integration. In order to avoid the redundancy of information to increase the burden of network and terminal, the method of multi-source spatial information integration is proposed. Based on the development of open source GIS middleware, a multi-source spatial data integration system is developed by using OGC spatial data model and Java language. The system supports the access and display of multi-source data. With the help of symbolization and OGC service publishing, we can easily make the thematic map which is suitable for location-based service. Finally, the actual case of this system is given. It is verified that the system can provide data support for location service related problems.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P208;TP311.52

【引证文献】