多源地理产品数据的元数据统一设计与采集管理技术  

Unified metadata design and collection management technology of multisource geographic product data

作　　者：刘阳成[1] 廖宁 左大伟[1] 谢玉波[1] 苏旭明 张鹏[1] LIU Yangcheng;LIAO Ning;ZUO Dawei;XIE Yubo;SU Xuming;ZHANG Peng(North China Institute of Computing Technology,Beijing 100083,China;Troops 31016,Beijing 100088,China;Star Map Press,Beijing 100088,China)

机构地区：[1]华北计算技术研究所,北京100083 [2]31016部队,北京100088 [3]星球地图出版社,北京100088

出　　处：《北京测绘》2024年第3期332-336,共5页Beijing Surveying and Mapping

基　　金：北京市自然科学基金(4214069);基础加强计划重点基础研究项目(2020-JCJQ-ZD-140-00)。

摘　　要：面向多源地理产品数据管理应用的需求,明确了本文讨论的地理产品数据的范畴,分析了地理产品数据的存储组织及应用特点。基于存储组织需求,统一设计了数据大类小类两级分类目录及类别编码,设计了地理数据产品的元数据采集规范。提出了数据集-数据单元两级元数据的设计理念以便满足不同数据粒度的管理需求,分别设计了数据集元数据和数据单元元数据的详细组成,统一设计了空间地理产品数据与非空间地理产品数据的元数据,明确了数据集目录和数据单元的命名原则。设计并实现了能够自动采集多源地理产品元数据的软件,实现了基于统一元数据设计的数据管理软件。结果表明,这种方法能够满足用户对多源地理产品数据的统一存储组织、多粒度管理、高效便捷检索等需求。The scope of geographic product data discussed in this paper was clarified based on the requirements for multisource geographic product data management and applications.This paper also analyzed the storage organization and application characteristics of geographic product data.According to the requirements of storage organization,a two-level classification directory and category coding for data categories and subcategories was designed.A metadata collection specification was designed for geographic product data,and a two-level metadata design concept of dataset and data unit was proposed to meet the management requirements of different data granularity.The composition of metadata in dataset and data unit was designed respectively,and the metadata for spatial and non-spatial geographic product data was jointly designed.The naming principles for the dataset directory and data units were clarified.A software that could automatically collect multi-source geographic product metadata was designed and implemented,and a data management software was developed based on unified metadata design.The results show that this method can meet the needs of users for unified storage organization of multi-source geographic product data,multi-granularity management,and efficient and convenient retrieval.

关 键 词：地理产品数据元数据 数据集 数据单元 元数据采集 数据管理 

分 类 号：P258[天文地球—测绘科学与技术]