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Apparatus and method for measuring cracks in wall surface

A technology of crack and angle measurement, applied in measuring instruments, measuring devices, surveying and navigation, etc., can solve problems that require a lot of time

Pending Publication Date: 2021-03-05
KK TOPCON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, mirrorless measurement has enabled collimation without reflectors, but the collimation of the target crack has to be done manually and takes a lot of time

Method used

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  • Apparatus and method for measuring cracks in wall surface
  • Apparatus and method for measuring cracks in wall surface
  • Apparatus and method for measuring cracks in wall surface

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0025]A preferred embodiment of the present invention will be described with reference to the accompanying drawings.

[0026]figure 1 It is an appearance perspective view of the measuring machine of the embodiment. Crack meter 2 (hereinafter referred to as meter 2) is a full station. The measuring machine 2 has a base portion 2a disposed over the calibrator, a tray portion 2b that is horizontally rotated on the base disk portion 2a, and a telescope 2c of the center lead rotation of the carrier portion 2b, and is provided in the bracket The front display unit 15 and the operation portion 16 of the portion 2b are.

[0027]figure 2 It is a block diagram of the measuring machine 2. The measuring machine 2 includes a horizontal angle detector 11, a lead profit angle detector 12, a horizontal rotary drive unit 13, a lead rotation drive portion 14, a display portion 15, an operation unit 16, a storage unit 17, an arithmetic control unit 18, a ranging The light shift portion 19, the ranging light...

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PUM

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Abstract

Provided are a crack measuring apparatus and a measuring method in which operations relating to three-dimensional measurements of a cracked portion in a structural object are automated as a series ofmeasurement operations. A crack measuring apparatus (2) includes distance-measuring units (19, 20), an image pickup unit (21) having pixels the positions of which are identified on an imaging device,an infrared image pickup unit (22) having pixels the positions of which are identified on an imaging device and having sensitivity to infrared rays, driving units (13, 14), angle-measuring units (11,12), and an arithmetic control unit (18), the arithmetic control unit (18) searches for a cracked portion from a temperature difference in an infrared image by turning the infrared image pickup unit (22), captures an image of the cracked portion by the image pickup unit (21) and identifies a position of the cracked portion from a density difference in the captured image, measures the position of the cracked portion by the distance-measuring units (19, 20) and the angle-measuring units (11, 12), and acquires three-dimensional absolute coordinates of the cracked portion.

Description

Technical field[0001]The present invention relates to a measuring machine and a measurement method for determining a crack of the wall surface of the structure.Background technique[0002]In order to investigate the distribution of cracks of large concrete structures such as buildings, iron bridges, tunnels, using measuring machines (full station) for measuring points. In the past, at the measurement site, the scaffolding was made by the staff while watching the crack portion while making a marker, record, or in the vicinity of the cracked portion. In recent years, by non-prism, it is possible to perform consideration without the reflective, but the visualization of the crack portion of the target should be carried out by manual operation, it takes a lot of time.[0003]In contrast, for example, a defect inspection apparatus is disclosed, for example, in document 1, there is a imaging image imaging unit and an infrared image imaging unit, which determines a crack portion near the crack ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88G01B11/00
CPCG01N21/8851G01B11/002G01N2021/8861G01C1/04G01C15/00G01B11/303G01B21/085G01N21/8806G01N21/954G06T7/0004G06T2207/10048G06T2207/30108G01B9/02041G01B11/14G01B11/26G06T7/0002G06T2207/20224H04N5/33H04N23/45H04N23/56
Inventor 田中崇菊池武志
Owner KK TOPCON
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