Distributed remotely-sensed data managing system and method

A technology of remote sensing data and management system, applied in the field of remote sensing data management, can solve the problems of inability to guarantee timely data update, unfavorable database data sharing, consumption of storage space, etc., to avoid updating, save storage space, and reduce costs.

Inactive Publication Date: 2011-08-31
BEIJING NORMAL UNIVERSITY +1
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  • Abstract
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Problems solved by technology

There are two problems in this centralized management method: First, the data of the same lower-level administrative region may be stored repeatedly in multiple upper-level administrative region databases with affiliation relations
For huge remote sensing data and remote sensing databases, this will consume a lot of storage space
Second, the data application at each l

Method used

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  • Distributed remotely-sensed data managing system and method
  • Distributed remotely-sensed data managing system and method
  • Distributed remotely-sensed data managing system and method

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Embodiment Construction

[0035] The distributed remote sensing image data management system of the present invention includes an N-level server for storing a database, a client application end, a database access interface and a display device. The distributed database of the present invention can be distributed on multiple spatial data servers of different levels. Users of different levels can access data of other levels through a network such as a private network. Users at each level are responsible for the construction and management of remote sensing databases and index databases of remote sensing images at the same level. Users with access rights can access the lower-level databases by indexing the lower-level index databases to obtain the required lower-level remote sensing image data.

[0036] figure 2 A schematic diagram showing a server hierarchy structure of a management system 2000 for distributed remote sensing image data according to the present invention. The distributed remote sensing...

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Abstract

The invention provides a distributed remotely-sensed data managing system, a distributed remotely-sensed data managing method and an inquiry method for the distributed remotely-sensed data managing system. The distributed remotely-sensed data managing system comprises servers ranging from a first level to an N level, wherein N is more than 1; each level is provided with one or more servers; each server in the first level comprises a remotely-sensed database which is used for storing remotely-sensed data in the same geographical area and an index library which is used for storing indexes of the remotely-sensed data on the server; one server corresponds to one geographical area; and each server from a second level to the N level comprises the index library which is used for storing library indexes with logical relations among representation servers. By the distributed remotely-sensed data managing system, data in databases on all levels of servers with subordinate logical relations can be shared, redundant storage data is effectively reduced, and storage space is saved.

Description

field of invention [0001] The invention relates to the field of remote sensing data management. More specifically, the present invention relates to a management method of distributed remote sensing data. Background technique [0002] Remote sensing image data has the characteristics of wide coverage and short acquisition cycle, and has a wide range of applications. With the improvement of sensor technology, the accuracy of remote sensing image acquisition is improved, and the update speed is faster, which makes the amount of image acquisition data increase rapidly. How to efficiently store and obtain useful information from massive remote sensing data is an important issue that needs to be solved urgently. question. [0003] Traditional remote sensing images are mainly managed by the file system. The image data itself is stored in the file system, and the relevant attribute information of the image is stored in the relational database. By establishing the mapping relation...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 陈云浩方利邓磊岳建伟易文斌
Owner BEIJING NORMAL UNIVERSITY
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