CN101476878B - Detection method for architectural glass surface optical reflection image deflection - Google Patents
Detection method for architectural glass surface optical reflection image deflection Download PDFInfo
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- CN101476878B CN101476878B CN2008101717302A CN200810171730A CN101476878B CN 101476878 B CN101476878 B CN 101476878B CN 2008101717302 A CN2008101717302 A CN 2008101717302A CN 200810171730 A CN200810171730 A CN 200810171730A CN 101476878 B CN101476878 B CN 101476878B
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Abstract
The invention relates to a quality detection method for the deformation condition of glass surface optical reflected images caused by processing deformation of building glass. The quality detection method is to adopt a high-resolution digital camera and a computer system to observe images formed by a building glass surface optical reflected black and white square pattern test board, and measure and calculate the deflection of the side length and the angle of a shot black/white pattern image with the maximum deformation, or use a computer image recognition system to compare the variation of the building glass surface optical reflected black and white pattern images so as to evaluate the quality of the building glass through the percentage of the deflection of the images. The quality detection method can conveniently and intuitively detect the deflection of the glass surface optical reflected images caused by permanent deformation due to deep processing of the building glass, and is a convenient and reliable detection method required for quality control of the manufacturing process and quality inspection under the condition of delivery and acceptance inspection of products of the building glass.
Description
Affiliated technical field
The present invention relates to a kind of quality inspection method of building glass.Cause the quality determining method of glass surface optical reflection image deformation situation especially for building glass deep processing distortion.
Background technology
In order to guarantee the product quality of building glass, formulated many quality determining methods both at home and abroad, and issued and implemented many related standards such as China GB national standard, ISO international standard.For example classification of GB/T7106 external window of building resisting wind press capacity and detection method, the heat-insulating property classification of GB/T8184 external window of building and detection method, the sound insulation property classification of GB/T8185 external window of building air-borne sound and detection method, GB/T15227 building curtain wall blast deformation performance detection method etc.But, also do not find the detection method of architectural glass surface optical reflection image deformation and relevant standard thereof so far.
Along with the raising of building standard, the exterior window of modern building and curtain wall have not re-used former of float glass, and building such as widespread usage tempered glass, laminated glass and double glazing deep processing glass.Former work in-process of float glass often produces distortion.Particularly tempered glass is in heat enhancing process, glass is heated to tempering temperature, the chilling of drying then, with the formation bearing stress, thus the physical strength and the anti-rapid heat cycle performance of raising glass, and this process can cause the either large or small permanent strain of glass.The distortion of glass just makes surface optics reflected image generation deformation.When good the or tempering apparatus of production run control was good, glass deformation was little, and the environmental images distortion that skin or cladding glass reflect is very little and out in the cold, and the outward appearance of buildings makes us pleasing.When production run control during bad or tempering apparatus difference, when glass deformation can be very big, skin or cladding glass be as distorting mirror, and the environmental images serious distortion that reflects has very big destruction to the outward appearance of buildings.
Though the technical requirement of having stipulated flexibility in the tempering glass standard for building, GB17841-1999 for example: " curtain wall with tempered glass and half tempered glass " and GB15763.2-2005: " safety glass part 2 for building: tempered glass ", the flexibility of regulation glass is: should be no more than 0.2% during waveform (bending).Testing tool is ruler and clearance gauge.This detection method bothers, out of true, particularly can not detect the situation of glass surface optical reflection deformation of image intuitively, is not easy to the quality testing of control of glass deep processing production run and product.
The content of invention
The objective of the invention is to formulate the quality determining method of the glass surface optical reflection deformation of image situation that a kind of building glass deep processing permanent strain causes, make things convenient for the production run control of glass deep processing and the quality testing of product, improve the presentation quality of buildings.
The technical scheme that realizes the object of the invention is: make the chequered with black and white square block pattern test board (hereinafter to be referred as test board) of big specification, and the parallel placement of tested building glass with test board, tested building glass should be in unconfined free state.Between tested building glass and the test board suitable distance should be arranged.The high resolving power digital camera head is set between tested building glass and test board,,, takes the optical image of tested building glass surface each several part reflection measurement plate pattern with its observation perpendicular to tested building glass.The high resolving power digital camera head is connected with microcomputer, and the image of the test board pattern of tested building glass surface reflection is presented on the display screen.The back side of tested building glass should be dark background, so that building glass optical surface reflected image can clearly be observed.
Diastrophic building glass is arranged, and the video of the test board black and white square pattern of its surface reflection can produce distortion.Building glass flexural deformation is big more, and the distortion of the test board black and white square pattern video of its surface reflection is big more.During detection, we find out the maximum square pattern of distortion from the reflected image of tested building glass, measure the variable quantity of its length of side and angle, estimate the quality of building glass with the percentage (%) of its variation.
Perhaps use the relatively video of the black and white square block pattern of building glass surface optics reflection measurement plate formation of computing machine image identification system, estimate the quality of building glass with the variable quantity of black and white square block pattern.
The invention has the beneficial effects as follows, can make things convenient for, detect intuitively building glass because the distortion that deep processing causes causes the deformation size of glass surface optical reflection image, thereby reliable detection method is provided convenience in the quality inspection during for the process control of building glass and product export, examination.
Description of drawings
Accompanying drawing 1 is the detection method synoptic diagram of architectural glass surface optical reflection image deformation of the present invention.Accompanying drawing 2 is deformation situations of the architectural glass surface optical reflection image of two kinds of different quality levels.
In the accompanying drawing, 1-chequered with black and white square block pattern test board, 2-high-resolution camera, 3-microcomputer and display screen, 4-tested building glass.In the accompanying drawing 2, A figure is the image of the less building glass surface reflection test board pattern of distortion; B figure is the image that is out of shape bigger building glass surface reflection test board pattern.
Embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.
As shown in Figure 1, chequered with black and white square block pattern test board (1) is on the flat board of 2400 * 2400mm, draws out chequered with black and white square pattern, and the physical dimension of test board is changeable according to the test environment needs, is advisable to satisfy the demand.The stock size of chequered with black and white square pattern is 100 ± 0.5mm, and the right angle is 90 ° ± 0.5 °.Corresponding measuring distance is 10 meters.The size of chequered with black and white square pattern can be adjusted accordingly according to the needs of measuring distance distance.Measuring distance is near, and square can be littler; Measuring distance is far away, and then square wants big.
Test board (1) and tested building glass (4) fixing and parallel placement with the dedicated fixed frame.Tested building glass (4) should be in unconfined free state.Vertical range between tested building glass (4) plane and chequered with black and white square block pattern test board (1) plane is 10 meters.The back side of tested building glass (4) is dark background, so that building glass optical surface reflected image can clearly be observed.
At 1000mm place, chequered with black and white square block pattern test board (1) front, there is special stand that high resolving power digital camera head (2) is installed.High resolving power digital camera head (2) is formed recording geometry with microcomputer (3), be used for observing the chequered with black and white square block pattern image of building glass (4) surface optics reflection measurement plate (1), on the screen of microcomputer (3), show, and store the data in the storer.
Every tested building glass (4) is carried out in the observation process, find out the distortion video place of the maximum black or white square block pattern of distortion, measure the length of side of black or white square block pattern video and the variable quantity of angle with computer-aided tool.Estimate the quality of building glass with the percentage of video maximum deformation quantity.Store the data in the storer.
Perhaps, estimate the quality of building glass with computing machine the image identification system relatively length of side of the chequered with black and white square block pattern of building glass surface optics reflection and the variable quantity of angle.
Accompanying drawing 2A is that quality is out of shape less building glass preferably and is made the formed chequered with black and white pattern of its (4) surface optics reflection measurement plate (1), and the length of side of the video of chequered with black and white square block pattern and angle change less.
Accompanying drawing 2B is second-rate, is out of shape the bigger formed chequered with black and white pattern of building glass (4) surface optics reflection measurement plate (1), and obvious variation all appears in the length of side of the video of chequered with black and white square block pattern and angle.
Claims (5)
1. the detection method of an architectural glass surface optical reflection image deflection, it is characterized in that: make chequered with black and white square block pattern test board, the parallel placement of tested building glass with test board, tested building glass is in unconfined free state, between tested building glass and test board, digital camera head is set, perpendicular to tested building glass, observe with it, take the optical image of tested building glass surface each several part reflection measurement plate pattern, camera is connected with microcomputer, camera and microcomputer are formed recording geometry, be used for observing the chequered with black and white square block pattern image of building glass surface optics reflection measurement plate, on the display screen of microcomputer, show, by detecting the square deflection that the building glass surface optics reflects chequered with black and white square block pattern test board image, estimate the presentation quality of building glass.
2. the detection method of architectural glass surface optical reflection image deflection according to claim 1, it is characterized in that: the back side of tested building glass is dark background, so that the building glass optical surface can clearly be observed.
3. the detection method of architectural glass surface optical reflection image deflection according to claim 1 is characterized in that: the vertical range between tested building glass plane and the chequered with black and white square pattern test board plane is 10 meters.
4. the detection method of architectural glass surface optical reflection image deflection according to claim 1, it is characterized in that: chequered with black and white square pattern test board is 2400 * 2400mm flat board.
5. according to the detection method of claim 1,4 described architectural glass surface optical reflection image deflections, it is characterized in that: the size of the chequered with black and white square pattern on the test board is 100 ± 0.5mm, and the right angle is 90 ° ± 0.5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101717302A CN101476878B (en) | 2008-10-24 | 2008-10-24 | Detection method for architectural glass surface optical reflection image deflection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101717302A CN101476878B (en) | 2008-10-24 | 2008-10-24 | Detection method for architectural glass surface optical reflection image deflection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101476878A CN101476878A (en) | 2009-07-08 |
| CN101476878B true CN101476878B (en) | 2010-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101717302A Expired - Fee Related CN101476878B (en) | 2008-10-24 | 2008-10-24 | Detection method for architectural glass surface optical reflection image deflection |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251687B (en) * | 2014-10-11 | 2017-05-03 | 盐城工学院 | Part surface evenness detection method based on mirror image processing |
| CN106091997B (en) * | 2016-06-01 | 2019-12-17 | 广州视睿电子科技有限公司 | Method, device and system for testing glass performance |
| CN107203994B (en) * | 2017-06-08 | 2021-03-26 | 广东嘉铭智能科技有限公司 | Method and device for detecting curvature of cambered surface glass |
| CN109712315B (en) * | 2018-12-27 | 2021-04-20 | 浪潮金融信息技术有限公司 | Automatic vending machine cargo falling detection method based on double cameras |
| CN115797360B (en) * | 2023-02-11 | 2023-04-25 | 深圳市汉高建设有限公司 | Glass curtain wall production quality monitoring system |
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- 2008-10-24 CN CN2008101717302A patent/CN101476878B/en not_active Expired - Fee Related
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Granted publication date: 20101110 Termination date: 20131024 |