基于三维地球的多源空间科学数据可视化管理系统的设计与实现

Design and implementation of a multi-source space science data visualization and management system based on 3D-earth

如何高效地组织和管理日益增长的多源海量空间科学数据、提高数据的可用性和易用性,是空间科学目前需要重点解决的技术问题。在充分分析现有空间科学数据管理技术和数据特点的基础上,提出了一种有效的系统架构,研究并利用空间关系数据库及分布式数据库技术,实现了海量异构数据的高效存储、检索与定位;研究基于三维数字地球的多层次细节展示方法、三维数据剪裁、多线程并行加载等关键技术,提高了空间科学数据的集成可视化显示与应用效率。最后设计并集成了多源空间科学数据可视化组织与管理系统,在实际工程应用中验证了设计的合理性与有效性。

How to efficiently organize and manage growing massive multi-sourcespace science data and enhance the availability and usability of data is a key technical problem to solve. Based on a full analysis of existing space science data management technologies and data characteristics, we propose an effective system architecture. Spatial relational database and distributed database technology are studied and utilized to achieve efficient storage, retrieval and positioning of massive heterogeneous data.The key technologies of levels of details display, 3D data clipping, and parallel loading via multi-thread based on 3D digital earth are studied so as to improve the efficiency of integrated visualization and application for space science data. Finally, we design and integrate a multi-source space science data visualized organization and management system. Practical engineering application results show the rationality and validity of the system design.