Quality control method for conversion of power grid special area raster data into vector data

A quality control method and a technology in a special area, applied in special data processing applications, electrical digital data processing, instruments, etc., can solve problems such as fine patch, large vector data, topology errors, etc., to achieve easy popularization and application, high accuracy , fast effect

Inactive Publication Date: 2014-10-29
STATE GRID CORP OF CHINA +2
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AI Technical Summary

Problems solved by technology

The special area data obtained by this method is raster data, which cannot be updated and revised, so it is necessary to convert the special area raster data into vector data
Due to the difference in the data structure of raster data and vector data, the converted vector data has a large number of finely divided images, border jagged, topological errors, etc.
These problems seriously affect the quality and accuracy of special area data and reduce the practical applicability of special area data

Method used

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  • Quality control method for conversion of power grid special area raster data into vector data
  • Quality control method for conversion of power grid special area raster data into vector data
  • Quality control method for conversion of power grid special area raster data into vector data

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with examples and drawings.

[0025] (1) Classify the raster data of special areas according to special area classification standards;

[0026] (2) Based on the classification information of the special area, the GIS data conversion algorithm is adopted to realize the data raster conversion vector of the special area;

[0027] (3) Use GIS to eliminate the algorithm to merge the fragmented map spots;

[0028] (4) Using GIS geometric feature conversion, spatial curve smoothing, and spatial curve planarization algorithms to deal with boundary sawtooth;

[0029] (5) Using GIS topology processing algorithm to correct topology errors.

[0030] Taking ArcGIS software as an example, select the grid map of the grid ice area distribution as the grid data of the special area, and perform the quality control of the grid-to-vector conversion of the grid-specific area data, including raster-to-vector, merging of frag...

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Abstract

The invention relates to a quality control method for conversion of power grid special area raster data into vector data. The method includes the following steps that (1) special area raster data are classified according to power grid special area grading standards; (2) on the basis of power grid special area classified information, the special area raster data are converted into vector data by means of a GIS data conversion algorithm; (3) a GIS elimination algorithm is adopted to merge small and broken pattern spots; (4) a GIS geometric feature transformation algorithm, a space curve smoothing algorithm and a space curve planarization algorithm are adopted to process boundary sawteeth; (5) a GIS topological processing algorithm is adopted to correct topological errors. The quality control method for conversion of the power grid special area raster data into the vector data is formulated, so that the accuracy rate and speed are high in conversion of the power grid special area raster data into the vector data, data quality and precision can be well guaranteed, and effective and reliable bases are provided for disaster prevention and reduction of a power grid.

Description

Technical field [0001] The invention relates to the technical field of power grid disaster prevention and mitigation, and specifically refers to a quality control method of data grid-to-vector conversion in a special area of ​​a power grid. Background technique [0002] Natural factors such as pollution, ice and snow, strong wind, thunder and lightning, and galloping are important environmental factors that affect the safe operation of transmission lines. The special area data of the power grid is a representation and simulation of the main distribution of these extreme weather conditions, which can comprehensively grasp the operation of the line itself and the surrounding environment from a macro perspective, so as to take corresponding measures to prevent and reduce disasters and ensure the safe and stable operation of the transmission line. [0003] At present, the special area data of ice, wind, thunder and dance are generated by GIS interpolation algorithm based on meteorologi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/18
Inventor 黄俊杰阮羚陈孝明熊宇
Owner STATE GRID CORP OF CHINA
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