Transmission line automatic line selection method based on unmanned aerial vehicle photogrammetry

Abstract

The invention belongs to the technical field of unmanned aerial vehicle photogrammetry and power transmission line path selection, and particularly relates to a power transmission line automatic lineselection method based on unmanned aerial vehicle photogrammetry. The method comprises the basic steps of making an image of a planning area, automatically classifying image feature ground objects, automatically searching a power transmission line path, evaluating a pre-selected search scheme result and the like. According to the invention, the unmanned aerial vehicle is used for carrying out real-time flight processing on the planned area and key ground objects thereof; High-resolution image data of related areas are obtained efficiently, the optimization degree of power transmission line path selection and the reasonable effectiveness of paths can be effectively improved through an image processing technology and an automatic power transmission line path searching and selecting algorithm, and optimal selection of power transmission line paths is achieved.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicle photogrammetry and transmission line route selection, and in particular relates to an automatic transmission line selection method based on unmanned aerial vehicle photogrammetry. Background technique [0002] In the line selection of transmission lines, appropriate and reasonable transmission line paths can improve the quality and efficiency of design work and optimize the grid structure of transmission lines. Therefore, in the process of transmission line route selection, reasonable and effective route selection methods are the focus of research. At present, with the continuous maturity of the development of UAV technology, the scope of its application in engineering construction is also expanding. High-resolution orthophotographs and oblique photographic models obtained by consumer-grade UAV photogrammetry technology also play a huge role in circuit design. After years of devel...

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Problems solved by technology

[0003] Due to the large scale of the domestic power grid, the complex facilities and lines in the power grid, the above method will bring a lot of data processing work in practical application, and it is often difficult to implement effectively in practice. In actual work, in order to obtain effective data results, transmission line selection Path selection is often based on satellite images with low resolution or poor timeliness in order to reduce the pressure of data processing and improve overall efficiency. Insufficient consideration leads to unreasonable results in the preliminary selection stage of the line, which has a great impact on the final survey and positioning design stage of the construction drawings in the later stage, and reduces the efficiency of the final design and finalization of the transmission line

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