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Method for measuring inclination and skewing of traditional wood structure bracket system node based on unmanned aerial vehicle

A measurement method and unmanned aerial vehicle technology, applied in the field of image recognition, can solve the problems that the manual measurement results vary from person to person, the need for manual climbing, and the labor-intensive problems, so as to reduce the risk of climbing operations, have a wide range of applications, and are easy to operate. Effect

Pending Publication Date: 2022-03-25
上海宝冶工程技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. It is labor-intensive, time-consuming and inefficient;
[0006] 2. Manual measurement results vary from person to person, and there are large errors;
[0007] 3. It needs to be artificially climbed, with certain risks and hidden dangers

Method used

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  • Method for measuring inclination and skewing of traditional wood structure bracket system node based on unmanned aerial vehicle
  • Method for measuring inclination and skewing of traditional wood structure bracket system node based on unmanned aerial vehicle
  • Method for measuring inclination and skewing of traditional wood structure bracket system node based on unmanned aerial vehicle

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Embodiment

[0039] A method for measuring the inclination and skewness of traditional wooden bucket arch nodes based on UAV image recognition, such as figure 1 shown, including the following steps:

[0040] 1) Determine the flight path of the UAV as 1-2-3-4, such as figure 2 As shown, the camera lens should face the forward direction of the drone's nose.

[0041] 2) In this embodiment, DJI Matrice M300 RTK professional UAV is selected, and the hovering accuracy can be controlled within 0.1m. According to relevant parameters, its maximum shooting distance is 7m. Considering the complex obstacles inside the structure, the relative flight distance is taken as 2m That's it. Control the UAV to fly according to the point path in step 1, keep a distance of about 2m from the node, and shoot after reaching a fixed point, such as image 3 shown.

[0042] In order to reduce the error of single shot measurement, it may be considered to repeat the above steps 1 and 2.

[0043] 3) Send the captur...

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Abstract

The invention discloses an unmanned aerial vehicle-based traditional wood structure bracket arch node inclination and deflection measurement method, which comprises the following steps: 1) determining a shooting point location of an unmanned aerial vehicle according to a bracket arch node of a traditional wood structure to be measured, and determining a flight path of the unmanned aerial vehicle according to the shooting point location; (2) the unmanned aerial vehicle is controlled to sequentially arrive at the shooting point positions according to the flight path, and photo shooting of all the cornice nodes needing to be measured is completed; 3) transmitting the acquired photo to an image processing control platform; 4) analyzing the inclination and skewing state of the cornice node through an image recognition technology; and 5) calculating the inclination angle of the cornice node according to the image recognition result. According to the invention, the unmanned aerial vehicle is used for obtaining the picture, and the image recognition technology is used for recognition, so that the safety risk of climbing a ladder frame in manual measurement can be avoided, the measurement accuracy can be improved, the human error misjudgment is small, the operation is simple and convenient, and the detection efficiency is improved.

Description

technical field [0001] The invention relates to the field of image recognition, in particular to a method for measuring the inclination and skewing of traditional wooden bucket arch nodes based on an unmanned aerial vehicle. Background technique [0002] Wooden structure is one of the main traditional building structures in my country. There are still many traditional wooden structure buildings that have survived to this day, and most of them are historically protected buildings. With the passage of time, a series of problems such as structural component damage and performance degradation will occur in traditional wooden structures. Therefore, it is necessary to strengthen the detection, identification and reinforcement of traditional wooden structures. [0003] Dougong is an important structural component of traditional palace-shaped wooden structures in my country. It represents the traditional architectural culture of my country and embodies the essence of traditional Chi...

Claims

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Application Information

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IPC IPC(8): G01C11/00G01C11/04G06V20/17G06V10/422
CPCG01C11/00G01C11/04
Inventor 窦晓静宋晓滨陈邢杰刘晓杨芸薛奡
Owner 上海宝冶工程技术有限公司