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House measurement and wall flatness detection method based on laser

A detection method and flatness technology, applied in the field of surveying and mapping, can solve the problems of unsatisfactory detection results, large workload and low precision of the detection method, and achieve the effects of convenient calculation, simple operation and accurate results.

Active Publication Date: 2021-05-25
GUANGDONG UNIV OF TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The domestic traditional method is contact detection. If the height of the house is too high or the wall area is too large, the workload of the traditional detection method will be heavy, resulting in low efficiency and high cost. Not high, resulting in unsatisfactory test results

Method used

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  • House measurement and wall flatness detection method based on laser
  • House measurement and wall flatness detection method based on laser
  • House measurement and wall flatness detection method based on laser

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Embodiment Construction

[0074] The present invention will be further described below in conjunction with specific embodiment:

[0075] Such as figure 1 As shown, a laser-based house measurement and wall flatness detection method described in the embodiment of the present invention includes the following steps:

[0076] S1. Place the lidar device in the house to be tested;

[0077] S2. Scanning the house to be tested based on laser light;

[0078] S3. Carry out laser point cloud data coordinate conversion and data processing;

[0079] The specific process of this step is as follows:

[0080] S3-1. Since the data package encapsulated by the lidar device is only the horizontal rotation angle and distance parameters, the angle and distance information in polar coordinates are converted into x, y, and z coordinates in the Cartesian coordinate system, such as figure 2 As shown, the conversion relation is:

[0081]

[0082] (1) In the formula, r is the measured distance, ω is the vertical angle of ...

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Abstract

The invention discloses a house measurement and wall flatness detection method based on laser. The method comprises the following steps: S1, placing laser radar equipment in a to-be-detected house; S2, scanning a to-be-measured house based on laser; S3, performing laser point cloud data coordinate conversion and data processing; S4, performing boundary extraction on the processed laser point cloud data; S5, reading each piece of contour information of the house to be measured, and calculating each size of the house; carrying out plane detection on a boundary contour by combining a boundary extraction result, and dividing an uneven region; and S6, outputting a house size and flatness division result. The method has the advantages of high detection efficiency, low detection cost, high detection precision and the like.

Description

technical field [0001] The invention relates to the technical field of surveying and mapping, in particular to a laser-based house measurement and wall flatness detection method. Background technique [0002] With the continuous development of the economy, modern people have higher and higher requirements for house decoration. In the decoration, the measurement of the house and the detection of the flatness of the wall are an essential part. The domestic traditional method is contact detection. If the height of the house is too high or the wall area is too large, the workload of the traditional detection method will be heavy, resulting in low efficiency and high cost. is not high, resulting in unsatisfactory test results. Contents of the invention [0003] The purpose of the present invention is to provide a laser-based house measurement and wall flatness detection method with high detection efficiency, low detection cost and high detection accuracy. [0004] In order t...

Claims

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Application Information

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IPC IPC(8): G01B11/24G01B11/30G01B11/00
CPCG01B11/24G01B11/30G01B11/00
Inventor 刘建圻赵建国杨俊威王炯楠
Owner GUANGDONG UNIV OF TECH