An oil and gas pipeline inspection method based on an unmanned aerial vehicle

Abstract

The invention discloses an oil and gas pipeline inspection method based on an unmanned aerial vehicle, and the method comprises the steps: carrying a high-resolution imaging system and a high-precision positioning device by the unmanned aerial vehicle to carry out low-altitude aerial photography, and obtaining continuous oil and gas pipeline images and the position information of the unmanned aerial vehicle; Performing abnormal target detection by adopting a target detection algorithm based on a neural network to obtain an abnormal target; And carrying out abnormal target positioning by adopting an algorithm based on a motion recovery structure. The oil and gas pipeline inspection method provided by the invention is relatively high in intelligent degree, an automatic target detection algorithm is adopted, and target positioning can be realized without adding additional ground control points; The oil and gas pipeline inspection method provided by the invention is relatively high in efficiency; In the abnormal target detection stage, the possible position of an abnormal target is effectively determined through an image segmentation algorithm based on SIFT and Graph Cut, and in the abnormal target positioning stage, under the condition that dense reconstruction, DEM generation and other steps in a traditional algorithm are omitted, high positioning precision can still be obtained.

Description

technical field [0001] The invention belongs to the technical field of aerial image processing, and more specifically relates to an oil and gas pipeline inspection method based on an unmanned aerial vehicle. Background technique [0002] As a national energy strategic channel, the safety of oil and gas pipelines is extremely important. In the actual operation process, factors such as natural and geological disasters, third-party construction, and pipeline occupation will bring potential huge harm to the safe operation of the pipeline. Once the oil pipeline leaks or explodes, the lives and property safety of the people will be greatly threatened. Therefore, frequent and effective inspections of oil and gas pipelines and timely removal of factors that threaten the safety of oil pipelines are very important in the protection of oil pipeline operations. [0003] The traditional oil pipeline inspection method mainly relies on manual inspection. Usually, the pipeline company di...

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Problems solved by technology

[0006] In view of the above defects or improvement needs of the prior art, the purpose of the present invention is to provide a UAV-based oil and gas pipeline inspection method, aiming at quickly obtaining the precise geographical location of abnormal targets around the oil and gas pipeline without manual intervention Location

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