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National fundamental geographic information data-based incremental map updating method

A national basic geography, incremental map technology, applied in electrical digital data processing, special data processing applications, maps/plans/charts, etc., can solve the problem of less incremental update mapping, achieve rapid mapping, and meet mapping needs , the effect is obvious

Inactive Publication Date: 2013-06-12
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are few studies on incremental update mapping. Under the existing map mapping technology, even if there is incremental update data, it is still necessary to adopt all re-mapping methods to obtain the latest current results.

Method used

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  • National fundamental geographic information data-based incremental map updating method
  • National fundamental geographic information data-based incremental map updating method
  • National fundamental geographic information data-based incremental map updating method

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Embodiment Construction

[0065] In order to make it easier for those skilled in the art to understand and implement the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0066] The system architecture that the embodiment of the present invention operates adopts prior art, such as figure 1 As shown, it includes three parts: database, drawing system and end user. This structure utilizes the existing computer database technology. In the embodiment, the database is an Oracle database. According to the needs of computer map drawing, the database includes four types: geographic database, cartographic database, map database and map expert knowledge base. The geographic database stores geographic data, that is, the original DLG (Digital Line Graphic) digital line drawing data and its metadata, which is the most basic data for computer map drawing; the cartographic database stores cartographic data, ...

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Abstract

The invention provides a national fundamental geographic information data-based incremental map updating method. A geographic data-map making data-map data-based map making model is constructed, and incremental geographic data is combined to realize incremental map updating on the basis of basic state data. The method mainly comprises the following steps of: importing the incremental geographic data on the basis of the basic state data; performing semantic matching on the incremental geographic data, and extracting the incremental information of the incremental geographic data; performing incremental map making conversion on the incremental geographic data by combining the incremental information and basic state map making knowledge to generate incremental map making data; performing incremental symbolization and annotation and incremental graph and annotation conflict detection and processing on the incremental map making data by combining the basic state map making knowledge; and updating basic state geographic data on the basis of the incremental geographic data to finish the incremental map updating.

Description

technical field [0001] The invention relates to the field of electronic map and digital map drawing, in particular to an incremental map update method based on national basic geographic information data. Background technique [0002] Compared with the batch update of topographic database, incremental information update only provides users with incremental information instead of the entire new data set. In recent years, it has gradually become a frontier research and application topic in international GIS academic circles and application departments. The current research on incremental update generally focuses on the classification, expression, extraction, release and integration of incremental update information. For example, "Extraction Method of Incremental Information of Geospatial Data" (Application No.: 200910062280.8) describes the method of incremental extraction of Geospatial Data; "Method of Publishing Incremental Information of Geospatial Data" (Application No. It...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G09B29/00
Inventor 朱海红李霖应申于忠海谭永滨兰洪浩
Owner WUHAN UNIV
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