Method and system for empty drum detection of house exterior facade by unmanned aerial vehicle

Abstract

The invention discloses a method and a system for detecting the hollowness of the exterior facade of a house by means of an unmanned aerial vehicle, comprising the following steps: establishing a space coordinate system; selecting a detection point; parameter detection; preliminary comparison; The method and system of the present invention for detecting the hollowness of the exterior facade of a house by means of an unmanned aerial vehicle, firstly, by controlling the unmanned aerial vehicle to take pictures of the exterior of the house instead of manual work, which greatly reduces the difficulty of house detection for detection, and can also improve the detection Second, by comparing the three-dimensional image of the house with the external data of the house, the location of the error can be quickly obtained, which is convenient to obtain the location of the error, thereby reducing the scope of manual investigation; Comparing the acquired accurate 3D images with images of common objects in the database can further investigate the scope of the investigation, thereby increasing the difficulty and workload of the investigation.

Description

technical field [0001] The invention relates to the technical field of empty drum detection, in particular to a method and system for detecting empty drums on the exterior facade of a house by means of an unmanned aerial vehicle. Background technique [0002] More and more houses have been built in my country. Since 2007, the country has begun to promote the external wall thermal insulation system to achieve the effect of building energy saving and thermal insulation. At present, the design service life of building structures in my country is generally 50 years, while the design service life of external wall insulation is only 25 years, and due to the short promotion and use time of external wall insulation, there are few relevant studies, and the construction quality is difficult to guarantee. In recent years, the external wall insulation systems in various places have experienced quality problems such as cracking, falling off, water seepage, and decreased thermal insulatio...

AI Technical Summary

Problems solved by technology

[0011] (2) The shooting angle of the camera is limited, (the angle with the wall should not be greater than 40°, otherwise the photo will be invalid), and the actual shooting requires the mobile phone camera to be as vertical as possible to the wall, which brings great inconvenience to the shooting work. When shooting for high-rise buildings, it is necessary to go to the opposite building to shoot, which consumes the time of the photographer, and the shooting distance will also affect the shooting effect;

[0012] (3) Parts, such as roof inspection, require personnel to climb high for exploration, which increases the risk of personnel injury, and accidents occur from time to time;

[0013] (4) The number of exploration experts is limited, and on-site exploration requires experts to travel all over the country. The existing personnel cannot meet the increasing detection tasks across the country, and the efficiency is low;

[0014] (5) After experts confirm the problem points, it is often necessary to manually go to the site to confirm the suspected problem points again, so as to finally determine the problem points, and it is impossible to achieve the integration of intelligent survey and intelligent review. Method and system for human-machine detection of empty drums on house facades

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