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Buffer region analysis method for environmental sensitive region identification in transmission and transformation project

A buffer analysis and environment-sensitive technology, applied in character and pattern recognition, instruments, calculations, etc., can solve problems such as buffer analysis without environment-sensitive areas, to eliminate identification and establishment problems, ensure equal width, and ensure accuracy Effect

Inactive Publication Date: 2017-06-13
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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Problems solved by technology

At present, there is no better method for buffer analysis in environmentally sensitive areas

Method used

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  • Buffer region analysis method for environmental sensitive region identification in transmission and transformation project
  • Buffer region analysis method for environmental sensitive region identification in transmission and transformation project
  • Buffer region analysis method for environmental sensitive region identification in transmission and transformation project

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] In order to realize the automatic identification function of environmentally sensitive areas, it is necessary to analyze two important aspects of buffer zone analysis and overlay analysis in spatial analysis. Buffer zone analysis refers to a band of certain width established around a geographic entity or spatial object in order to identify its proximity or influence on its surroundings. Overlay analysis is the operation of superimposing two or more layers of map elements to generate a new element layer. As a result, the original elements are divided to generate new elements, and the new elements synthesize the attributes of the original two or more layers of elements.

[0036] Buffer analysis is one of the important and basic spatial manipulation functions of GIS. It is to establish a certain distance (buffer radius) band (buffer polygon) around...

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Abstract

The invention discloses a buffer region analysis method for environmental sensitive region identification in a transmission and transformation project. By reading geographic information corresponding to the transmission and transformation project, according to a given space entity, a generated buffer region shape is determined; by means of the vector algorithm, linear judgment and break point convexity judgment are conducted, an circular arc is embedded, a buffer region is generated, and the self-intersection boundary of the buffer region boundary is divided; polygon clipping is conducted on the generated buffer region, the region of space data is divided again, spatial overlapping is conducted on different dada models in the region, and according to the overlapping result, an environmental sensitive region is determined. The buffer region is generated by means of the vector method, the accuracy can be ensured, when the buffer region is generated, the equal width of parallel curves can be guaranteed to the maximum extent, and many abnormal situations are ruled out.

Description

technical field [0001] The invention relates to a buffer analysis method aimed at identifying environmentally sensitive areas of power transmission and transformation projects. Background technique [0002] The automatic identification of environmentally sensitive areas in power transmission and transformation projects is mainly based on the spatial analysis function of geographic information systems. The so-called spatial analysis is widely used in water pollution monitoring, urban planning and management, earthquake disaster and loss estimation, flood disaster analysis, mineral resource evaluation, road traffic management, topography and geomorphology analysis, and military fields. For example, in the evaluation of the status quo of regional environmental quality, geographic information can be combined with monitoring data of environmental elements such as atmosphere, soil, water, and noise, and the spatial analysis module of GIS software can be used to objectively assess ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/46
CPCG06V10/462
Inventor 谢连科赵岩臧玉魏张永张国英马新刚刘辉陈素红王飞李勇尹建光李方伟
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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