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房产空间数据整合研究

Research of House Property Spatial Data Integration

【作者】 张鑫

【导师】 闾国年;

【作者基本信息】 南京师范大学 , 地图学与地理信息系统, 2004, 硕士

【摘要】 作为空间数据的有效管理工具,地理信息系统(GIS)目前逐步成为空间信息管理与应用的主要平台。与此同时,地理信息系统也面临着对不同来源、不同数据组织形式的空间信息进行有效管理和综合应用的难点。随着社会对地理信息的需求日益增加,INTERNET网络的飞速发展和普及,GIS应用的日益社会化,地理信息共享已成为一种必然要求。然而,地理信息要想真正实现共享,不仅要解决地理信息多格式、多语义、多时空尺度、多坐标体系、多数据精度融合等问题,即多源空间数据之间的集成问题;还要解决空间数据与其属性数据之间一体化数据模型、一体化数据库管理的问题,即空间与属性数据之间的集成问题。 空间数据整合要解决的问题就是对空间数据在各种数据库中存在的数据格式差异、坐标体系差异、数据精度差异、时空尺度差异和属性定义差异等进行加工处理,按照一定的数据标准、空间与属性一体化的数据模型对空间数据进行提取、转换、加载,整合成一个有机的整体,最大程度上实现多种数据源的完全转换或信息共享。空间数据整合包括两方面含义:其一是对现有多源异构空间数据的加工与整理,主要目的是消除多源异构数据间的各种差异,以便于数据的集成;其二是对整理后数据的集成与合并,主要是通过建立空间与属性一体化管理的数据模型来实现的。 本论文以南京“数字房产”共享平台建设中的异构地理空间数据的整合为例,对房产多源空间数据、房产业务属性数据及房产空间与属性数据之间整合的理论与方法进行了全面、细致的研究。

【Abstract】 As an effective tool in spatial data management, Geographic Information System (GIS) has become the basic platform for spatial information management and application; meantime, it’ s confronting the difficulty of that from various data sources and data organizing forms. Despite of this, Geo-info sharing is inevitable with the uprising need for it, fast development and popularization of INTERNET, socialization of GIS application. However, to get genuine sharing, we have to solve not only the bottlenecks of integration of multi-format, multi-semantics, multi-temporal spatial scales and multi databases, namely, integration of multi-spatial data, but also integration of spatial data and relative attribute data. All of the problems mentioned above couldn’ t be solved without development of GIS theory and technology.The problems to be solved in spatial data integration is processing and disposing model difference, precision difference, geometrical position difference and attribute definition difference of spatial data in various databases, and abstract, converse, load, integrate spatial data according to certain data criteria, consequently, realize the furthest complete conversion and info-sharing of multi sources. Data integration has double meanings: one is to process and dispose existing data; the other is to integrate and unite the processed data.This paper takes the integration of different structure geo-spatial data in construction of sharing platform of Nanjing "Digital House Property" as the case, goes deep into the theory and methods of multi-sources spatial data of House Property, business attribute data and integration of both of them.

  • 【分类号】P208
  • 【被引频次】10
  • 【下载频次】452
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