| 异构地理数据共享模式与关键技术研究 |
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| 引用本文： | 王勇,庄大方,江东.异构地理数据共享模式与关键技术研究[J].甘肃科学学报,2011,23(4):114-118. |
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| 作者姓名： | 王勇 庄大方 江东 |
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| 作者单位： | 中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室,北京,100101 |
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| 基金项目： | 国家科技支撑计划(2008BAC34B06-02); 国家航天局环境星应用推广课题(2008A02A09) |
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| 摘 要： | 从介绍异构地理数据的特点出发,详细论述了直接使用模式、先转换后使用模式、数据互操作模式、数据标准化模式和元数据库访问模式等5种异构地理数据共享模式及其弊端,在此基础上进一步阐述了异构地理数据共享模式实现的关键技术,即分布式数据库集成技术、信息压缩传输与快速索引技术和实时投影转换技术,为异构地理数据集成共享提供了参考性的...
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| 关 键 词： | 地理数据 共享模式 地理信息系统 元数据 互操作 |
Study on Share Modes and Key Technologies of Heterogeneous Geographical Data |
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| WANG Yong,ZHUANG Da-fang,JIANG Dong.Study on Share Modes and Key Technologies of Heterogeneous Geographical Data[J].Journal of Gansu Sciences,2011,23(4):114-118. |
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| Authors: | WANG Yong ZHUANG Da-fang JIANG Dong |
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| Institution: | WANG Yong,ZHUANG Da-fang,JIANG Dong(State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources,Chinese Academy of Sciences,Beijing 100101,China) |
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| Abstract: | The heterogeneous geographical information has been demanded widely by different strata of users.Based on its characteristics,five integrated share modes are discussed here,including Directly Use Mode,Conversion-Use Mode,Interoperability Mode,Standardization Mode and Metadata Access Mode.Their shortcomings are also touched.At the same time,the key technologies for implementing the integrated share of heterogeneous geographical data are enunciated.They are distributed database integrated technology,compresse... |
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| Keywords: | geographical data share mode GIS metadata interoperability |
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