Water and soil conservation monitoring method based on multi-temporal satellite remote sensing and unmanned aerial vehicle technology

Abstract

The invention discloses a water and soil conservation monitoring method based on multi-temporal satellite remote sensing and an unmanned aerial vehicle technology. The method comprises the following steps: carrying out change detection based on different-temporal satellite remote sensing images of the same construction region, thereby rapidly detecting a construction disturbance range, a water and soil loss region and a vegetation recovery region of each construction region on a power transmission and transformation line, wherein time phase is divided into three time periods, namely a time period before construction, a time period during construction and a time period after construction; monitoring key regions through an unmanned aerial vehicle to obtain unmanned aerial vehicle aerial images of the key regions, wherein the key regions comprise the water and soil loss regions and the vegetation recovery regions; and verifying the water and soil loss regions and the vegetation recovery regions by using the unmanned aerial vehicle aerial images of the key regions, and accurately obtaining specific conditions of the water and soil loss regions and the vegetation recovery regions. The working efficiency of whole power transmission and transformation line monitoring is improved, the monitoring cost is reduced, and the monitoring precision is improved.

Description

technical field [0001] The invention relates to the technical field of soil and water conservation monitoring, in particular to a soil and water conservation monitoring method based on multi-temporal satellite remote sensing and unmanned aerial vehicle technology. Background technique [0002] Due to the large space span, long construction path, various construction techniques, and many disturbance points of the power transmission and transformation line project, the supervision work is faced with problems such as heavy workload, high work requirements, backward supporting technology, and insufficient capacity. Therefore, it is urgent to improve The efficiency and accuracy of water and soil conservation supervision work during the project construction process, so as to effectively prevent water and soil loss caused by engineering construction. The transmission line is long, the terrain is complex, and the supervision workload of the disturbance area of ​​each tower foundatio...

AI Technical Summary

Problems solved by technology

The transmission line is long, the terrain is complex, and the supervision workload of the disturbance area of ​​each tower foundation is very large. It is difficult to supervise the disturbance area and the area of ​​plant measures in the construction area where personnel are not easy to reach, especially the disturbance at the pole towers and construction roads in mountainous areas. area regulation

[0003] Traditional water and soil conservation supervision mainly adopts a single manual ground inspection, mainly relying on traditional hand-held GPS positioning, recording, photographing and other technical means, which is time-consuming, labor-intensive and poor in timeliness. It is not only restricted by natural conditions, but also labor-intensive. There are hidden dangers to personal safety, and the verification efficiency is low

[0004] Although UAV technology can obtain the scope of construction disturbance and soil erosion conditions, with the increase of power transmission lines, the demand and requirements for UAV pilots continue to increase, and the endurance of UAVs is seriously insufficient, so it is impossible to execute the entire line at one time. Flight supervision tasks require multiple monitoring, which greatly increases the cost of monitoring

[0005] With the continuous development of satellite remote sensing technology, the use of high-resolution optical satellite images to identify the scope of construction disturbances, soil erosion conditions, and vegetation restoration areas has gradually become one of the powerful technologies for soil and water conservation monitoring. The existing satellite remote sensing technology-based Although the monitoring method has high precision, it is too clumsy, and its efficiency is extremely low for the construction disturbance extraction of power transmission and transformation line projects in the whole province or even the whole process

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