Handheld concrete roughness three-dimensional detection device and method

A three-dimensional detection and concrete technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems that the measurement accuracy cannot be well guaranteed, the operation process is cumbersome, etc. The method is convenient, the equipment is portable, and the guarantee is reliable. sexual effect

Active Publication Date: 2021-02-26
CHINA THREE GORGES PROJECTS DEV CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The operation process of the above measurement method is relatively cumbersome, and the measurement accuracy cannot be well guaranteed

Method used

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  • Handheld concrete roughness three-dimensional detection device and method
  • Handheld concrete roughness three-dimensional detection device and method
  • Handheld concrete roughness three-dimensional detection device and method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0030] see Figure 1-3 , a hand-held concrete roughness three-dimensional detection device, it includes a camera mounting plate 8, the bottom end surface of the camera mounting plate 8 is symmetrically fixed with a first camera assembly 9 and a second camera assembly 11, the first camera assembly The position between 9 and the second camera assembly 11 is fixed with a laser 10 for positioning, and the camera mounting plate 8 is connected with the hand-held structure through the connecting plate 4; it also includes a calibration plate 12 for positioning the scanning position, and the calibration plate 12 cooperates with the first camera assembly 9, the second camera assembly 11 and the laser 10, and realizes the three-dimensional scanning of the concrete surface in the set area. The detection device with the above structure can be used to detect the roughness of the concrete surface. It obtains the three-dimensional point cloud data of the concrete surface, and obtains its surf...

Embodiment 2

[0036] A method for detecting concrete roughness with a handheld concrete roughness three-dimensional detection device comprises the following steps:

[0037] Step 1: Clean up the debris on the surface of the concrete to be detected, and select a suitable detection area, place the calibration plate 12 in the selected area, place it flat and fix the calibration plate 12 in the area;

[0038] Step 2: Hold the handle 1, and scan the rectangular area 14 of the calibration plate 12 by moving the above-mentioned detection device to obtain the three-dimensional point cloud data of the concrete surface;

[0039] Step 3: Calculate the roughness of the point cloud data by using the plane expansion rate calculation method according to the three-dimensional point cloud data.

[0040] In the scanning process adopted in the second step, the point cloud data is obtained by using a planar single-chip scanning method or using the marker points 13 in the calibration plate to complete multi-chip...

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Abstract

The invention provides a handheld concrete roughness three-dimensional detection device and method, and the device comprises a camera installation plate, and the bottom end surface of the camera installation plate is symmetrically and fixedly provided with a first camera assembly and a second camera assembly. A laser used for positioning is fixed between the first camera assembly and the second camera assembly, and the camera installation plate is connected with a handheld structure through a connecting plate; and a calibration plate used for positioning a scanning position is further included, is matched with the first camera assembly, the second camera assembly and the laser, and is used for realizing three-dimensional scanning of the concrete surface in a set area. According to the detection device, the concrete roughness condition is scanned and digitized through three-dimensional laser, then three-dimensional point cloud data of the concrete surface are obtained, the concrete surface roughness is obtained through calculation, and the purpose of accurately measuring the concrete surface roughness is achieved.

Description

technical field [0001] The invention relates to the field of concrete surface quality detection devices, in particular to a hand-held three-dimensional detection device and method for roughness of concrete. Background technique [0002] Existing concrete surface roughness detection mainly adopts sand filling method or sand topping method, using fine sand to fill the highest point of a unit area area or pave the entire measurement area, and finally calculate the roughness according to the volume of sand. [0003] The operation process of the above measurement method is relatively cumbersome, and the measurement accuracy cannot be well guaranteed. Contents of the invention [0004] In order to overcome the deficiencies of the prior art, the present invention provides a hand-held three-dimensional roughness detection device and method for concrete. The detection device uses three-dimensional laser scanning to digitize the roughness of concrete, and then obtains three-dimensio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/30
CPCG01B11/303
Inventor 杨宗立杨宁牟荣峰乔雨李庆斌胡昱刘海洋梅杰
Owner CHINA THREE GORGES PROJECTS DEV CO LTD
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