多源异构数据集成的实景三维数据模型

Real scene 3D data model of multi-source heterogeneous data integration

本文根据实景三维中国的要求,提出一种集成多源异构数据的空间数据体数据模型。以面向对象的方式,在概念上对地理场景和地理实体的数据结构进行了统一,对传统的“三域”标识组织进行了拓展,对描述同一个地理事物的多种空间数据进行了集成,尤其拓展了对多种三维空间数据的组织和存储。增加了非结构化数据索引,支持空间数据体关联文档和多媒体数据。此外,还提出了一种简化解决空间数据体间关系的组织、管理问题的方案。最后,依据该数据模型,提出一套与之相适应的混合数据库建设方案,该方案已经在多个相关项目实践中得以应用。

This paper proposed a spatial data model that integrated multi-source heterogeneous data according to the requirements of real scene three-dimensional(3D)China.In an object-oriented way,the data structure of geographic scenes and geo-entities was conceptually unified.The data model expanded the traditional"three-domain"identification organization,integrated a variety of spatial data describing the same geographic thing,and especially expanded the organization and storage of a variety of three-dimensional spatial data.Added by unstructured data index,supporting spatial data body related documents and multimedia data.A scheme to simplify the organization and management of the relationship between spatial data bodies was proposed.Finally,based on the data model,a set of suitable hybrid database construction program was proposed,and the program had been applied in the practice of many related projects.