CN103884286B - Concrete surface crack width measurement mark patch and method for conducting measurement recognition - Google Patents
Concrete surface crack width measurement mark patch and method for conducting measurement recognition Download PDFInfo
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- CN103884286B CN103884286B CN201410069673.2A CN201410069673A CN103884286B CN 103884286 B CN103884286 B CN 103884286B CN 201410069673 A CN201410069673 A CN 201410069673A CN 103884286 B CN103884286 B CN 103884286B
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to a concrete surface crack width measurement mark patch and a method for conducting measurement recognition. The concrete surface crack width measurement mark patch comprises a base plate, wherein a standard width scale area and a two-dimensional code information area are arranged on the base plate, and standard width scale coatings with different widths are arranged in the standard width scale area. Effective pixels in a digital photo serve as transfer amounts so that standard width scales can be compared with an observed crack and the actual width of the crack can be obtained through calculation, and not only are the defects that a traditional method is large in workload and dangerous in work environment overcome, but also the defects that remote measurement based on the graphic processing technology is high in professional skill threshold, low in resolution ratio and the like are overcome. Meanwhile, information such as the position coordinates of the crack and the initial width of the crack is stored and recognized through the two-dimensional code technology, information storage and recognition efficiency is improved, and the memory capacity is increased.
Description
Technical field
The invention belongs in civil engineering all kinds of concrete structural surface fracture widths field of measuring technique and in particular to
A kind of concrete surface crack width measure labelling paster and measure knowledge method for distinguishing.
Background technology
The width measure to concrete structural surface crack in civil engineering, to judging that structural stability had with durability
Significance.At present, conventional measuring method one is using the measurement of the instrument contacts formula such as New Instrument for Crack Width, feeler gauge；Two is to be based on
The telemeasurement of graph processing technique.And the parameter such as the numbering of fracture, position then enters rower frequently with marking pen, chalk
Note.But, this two class measuring methods are respectively present that workload is big, working environment is dangerous and professional skill has high demands, identifies essence
Spend low disadvantage, crack labeling method there is also the defects such as quantity of information is little, be easily stained simultaneously.Therefore, this field in the urgent need to
A kind of technology and equipment that can quickly measure fracture faces width at a distance, simultaneously this technology can accurately fracture position,
The information such as original width, initial length, types of fractures are marked, and line tunnel maintenance personnel can be allowed quickly to grasp.
Content of the invention
It is an object of the invention to provide one kind is capable of quickly measuring at a distance concrete structural surface in civil engineering
Fracture width, and can the information such as fracture position, original width, initial length, types of fractures be marked, it is easy to counterincision
Stitch the concrete surface crack width measure labelling paster of long term monitoring or multiple measurement and measure knowledge method for distinguishing.
For achieving the above object, the technological means of present invention employing are, a kind of concrete surface crack width measure
Labelling paster, including substrate, substrate is provided with normal width groove area and 2 D code information area, and normal width groove is provided with area
The normal width scratch coatings of different in width.
Preferably, the width of described normal width groove area internal standard width scratch coatings be respectively 0.2mm, 0.5mm,
1.0mm、1.5mm、2.0mm、3.0mm.
Described concrete surface crack width measure labelling paster measures knowledge method for distinguishing, comprises the following steps:
Described concrete surface crack width measure paster is pasted onto near crack, then carries out longshot with digital camera, lead to
Cross pixel number shared by contrast crack and pixel number shared by normal width scratch coatings to calculate the width in crack；
If fracture width is identical with the pixel count shared by the normal width scratch coatings of a certain width, fracture width and
Width for corresponding normal width scratch coatings；If the normal width of the pixel count shared by fracture width and a certain width is carved
Pixel count shared by line coating is close, then adopt interpolation and calculate according to equation below:
Wherein:px r Pixel count shared by fracture width；
px n Width is the pixel count shared by normal width scratch coatings of n；
w n Width is the developed width of the normal width scratch coatings of n, unit mm；
w r Fracture width, unit mm；
By the original width (width when measuring for the first time) in crack, initial length (length when measuring for the first time), position
Put, the information of type generates Quick Response Code by Quick Response Code generating means, then the Quick Response Code of generation is printed upon by printer
2 D code information area；The original width in the crack of record, initial length, position on Quick Response Code are read by Quick Response Code reading device
Put, the information of type.
The beneficial effect comprise that, by the use of in digital photo valid pixel as transmission capacity to normal width groove
Coating and observation crack are compared, and obtain crack developed width thus calculating, have both avoided that traditional method workload is big, work
The shortcoming of environmental hazard, has avoided professional technique threshold height, the resolution that the telemeasurement based on graph processing technique exists again
The shortcomings of rate is relatively low.Meanwhile, the information such as planar bar code technology fracture position coordinateses, original width that are employed herein are deposited
Storage identification, improves information Store recognition efficiency, increases amount of storage.
Brief description
Fig. 1 is concrete surface crack width measure labelling paster structure schematic diagram；
Fig. 2 is the use state figure of concrete surface crack width measure labelling paster.
Specific embodiment
As shown in figure 1, a kind of concrete surface crack width measure labelling paster, including substrate 1, substrate is provided with standard
Width groove area 2 and 2 D code information area 3, are provided with the normal width scratch coatings 4 of different in width in normal width groove area 2.
Described substrate 1 is aluminium-plastic panel substrate, and the thickness of aluminium-plastic panel substrate is 4mm, and on aluminium-plastic panel substrate, normal width groove area 2 is a size of
60mm 40mm (length and width), normal width scratch coatings 4 length be 30mm, width be respectively 0.2mm, 0.5mm, 1.0mm,
1.5mm、2.0mm、3.0mm；Normal width scratch coatings 4 printing adopts black or red ink, and wherein width printing precision is
±0.1mm；Described 2 D code information area 3 a size of 40mm 40mm (length and width).
Carry out longshot with digital camera (valid pixel is more than or equal to 12,000,000), by contrasting picture shared by fracture width
Prime number value and pixel number shared by normal width scratch coatings are calculating the width in crack；Initial width by calculated crack
Degree and the initial length measuring the crack obtaining, and the position in crack, the information of type are by Quick Response Code generating means generation two
Then the Quick Response Code of generation is printed upon 2 D code information area 3 by printer, as shown in Figure 2 by dimension code.
Be can read on Quick Response Code by Quick Response Code reading device the original width in the crack of record, initial length, position,
The information of type, can be with fracture long term monitoring or multiple measurement.
Claims (1)
1. one kind measures knowledge method for distinguishing, described concrete surface using concrete surface crack width measure labelling paster
Fracture width measurement markers paster includes substrate, and substrate is provided with normal width groove area and 2 D code information area, normal width
It is provided with the normal width scratch coatings of different in width in groove area；It is characterized in that, comprise the following steps:
Described concrete surface crack width measure labelling paster is pasted onto near crack, then carries out distant view with digital camera
Photography, calculates the width in crack by contrasting pixel number and pixel number shared by normal width scratch coatings shared by crack；
If fracture width is identical with the pixel count shared by the normal width scratch coatings of a certain width, fracture width is corresponding
The width of normal width scratch coatings；If the pixel count shared by fracture width and the normal width scratch coatings institute of a certain width
The pixel count accounting for is close, then adopt interpolation and calculate according to equation below:；Wherein:px r Crack
Pixel count shared by width；px n Width is the pixel count shared by normal width scratch coatings of n；w n Width is the standard of n
The developed width of width scratch coatings, unit mm；w r Fracture width, unit mm；
The information of the original width in crack, initial length, position, type is generated Quick Response Code by Quick Response Code generating means, so
Afterwards the Quick Response Code of generation is printed upon 2 D code information area by printer；Read by Quick Response Code reading device and remember on Quick Response Code
The original width in crack of record, initial length, position, the information of type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410069673.2A CN103884286B (en) | 2014-02-28 | 2014-02-28 | Concrete surface crack width measurement mark patch and method for conducting measurement recognition |
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| CN201410069673.2A CN103884286B (en) | 2014-02-28 | 2014-02-28 | Concrete surface crack width measurement mark patch and method for conducting measurement recognition |
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| CN103884286A CN103884286A (en) | 2014-06-25 |
| CN103884286B true CN103884286B (en) | 2017-01-25 |
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| CN104374324B (en) * | 2014-11-13 | 2017-10-03 | 长沙德自信息技术有限公司 | Displacement measuring device based on image recognition |
| US20180035655A1 (en) * | 2015-02-26 | 2018-02-08 | John Charles Callingham | Fish measuring device |
| CN106705875A (en) * | 2015-11-18 | 2017-05-24 | 中国石油天然气股份有限公司 | Tunnel crack measuring method and device |
| CN106522089B (en) * | 2016-12-14 | 2018-12-25 | 北京星汉舟科技有限责任公司 | Quantification can reversed coating concrete functional coating |
| CN106840005A (en) * | 2017-01-24 | 2017-06-13 | 国网山东省电力公司海阳市供电公司 | A kind of aerial condutor line footpath noncontact assay method and specifications of cables plate |
| CN107504901B (en) * | 2017-07-01 | 2023-08-01 | 浙江大学宁波理工学院 | Method for monitoring surface crack width of concrete structure by using unmanned aerial vehicle |
| CN107845326A (en) * | 2017-12-19 | 2018-03-27 | 中铁第四勘察设计院集团有限公司 | Rail in high speed railway expansion and cotraction regulator displacement identification Sign Board and measuring method |
| KR102259666B1 (en) * | 2020-08-24 | 2021-06-02 | 에이아이안전연구원 주식회사 | Removable adhesive crack scale |
| CN113739661A (en) * | 2021-08-24 | 2021-12-03 | 同济大学 | Measuring scale and method for detecting surface cracks of component |
| CN115018735B (en) * | 2022-07-20 | 2024-08-20 | 合肥工业大学 | Crack width identification method and system based on Hough transformation correction two-dimensional code image |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3866257B2 (en) * | 2004-08-18 | 2007-01-10 | 核燃料サイクル開発機構 | Method and apparatus for measuring three-dimensional shape and opening width of crack |
| EP1939583B1 (en) * | 2005-09-15 | 2013-11-06 | Kansai Kouji Sokuryou Co., Ltd. | Optical device, and method of measuring the dimension of object using optical device |
| CN201402110Y (en) * | 2009-04-30 | 2010-02-10 | 福建昌铭建筑工程技术有限公司 | Crack measuring card of building |
| CN101713727B (en) * | 2009-12-29 | 2012-05-23 | 江苏省电力试验研究院有限公司 | In-service transformer-station concrete component load-bearing safety detection device and detection method thereof |
| CN103325075A (en) * | 2012-11-22 | 2013-09-25 | 长沙建研信息技术有限公司 | Concrete test block locating method based on two-dimensional bar codes |
| CN203869664U (en) * | 2014-02-28 | 2014-10-08 | 河南省交通科学技术研究院有限公司 | Concrete surface crack width measuring label paster |
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