Dam surface crack intelligent identification and measurement device for unmanned aerial vehicle

A technology for surface cracks and measuring devices, which is applied to measuring devices, using optical devices, and optically testing flaws/defects.

Inactive Publication Date: 2020-04-10
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

These detection methods need to arrange equipment, have many restrictions on use, and the implem

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  • Dam surface crack intelligent identification and measurement device for unmanned aerial vehicle
  • Dam surface crack intelligent identification and measurement device for unmanned aerial vehicle

Examples

Experimental program
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Example Embodiment

[0032] Example 1-Detection of surface cracks in the overflow dam section of a concrete dam (or concrete face rockfill dam) project

[0033] Such as figure 1 As shown, in the dry season, the drone patrols the designated dam section, the intelligent crack identification and measurement device is physically connected with the drone, and the video is taken along with the drone inspection, and the video image processor 4 in the intelligent crack identification and measurement device is automatically Identify surface cracks. After the crack is detected, drive the drone to fly to the crack, and automatically adjust the distance and angle of the drone to the crack according to the occurrence of the crack. Lens 2 automatically adjusts the angle to be parallel to the dam surface, and takes a picture of the crack through the built-in FC-DenseNet The network algorithm automatically outlines the crack shape and saves it to the crack picture memory 5. At the same time, the crack measuring dev...

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Abstract

The invention discloses a dam surface crack intelligent identification and measurement device for an unmanned aerial vehicle. The device comprises a crack identification device, a crack measurement device, a crack positioning device, a storage and connection device and a comprehensive processor, wherein the crack recognition device can shoot a video along with inspection of the unmanned aerial vehicle, intelligently recognize a crack, capture a crack picture and draw the shape of the crack; the crack measuring device is used for measuring the width of a crack by utilizing a laser width gauge and generating a crack width table; and the crack positioning device is used for determining the coordinates of the crack. The intelligent crack recognition and measurement device can quickly detect the position of a dam surface crack, shoot a crack picture, measure the width of the crack and automatically generate a dam surface crack distribution diagram, so that the number of times of dam entering detection of engineers can be reduced, a large amount of manpower and time can be saved, and the crack recognition and measurement efficiency and precision can be improved.

Description

technical field [0001] The invention relates to the crack identification and measurement equipment technology on the dam surface, in particular to a device which can be used to intelligently identify cracks and automatically measure the width of the cracks. Background technique [0002] my country's water conservancy and hydropower projects are developing in the direction of larger scale and higher difficulty. Among high dams, concrete dams and concrete face rockfill dams account for a large proportion. However, limited by the characteristics of the large volume (area) of concrete, cracks are common in dams. The forms of cracks can be roughly divided into surface cracks and penetrating cracks. In engineering, surface cracks account for the vast majority, and some surface cracks may expand into deep cracks, and even penetrate the entire structure to form penetrating cracks. The appearance of cracks will not only reduce the anti-seepage capacity of the dam and affect the use...

Claims

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Application Information

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IPC IPC(8): G01N21/88G01B11/02
CPCG01B11/02G01N21/8851G01N2021/8874G01N2021/8887
Inventor 李明超任秋兵司文
Owner TIANJIN UNIV
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