CN108490029A - Exterior wall finish layer hollowing detection method - Google Patents
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- CN108490029A CN108490029A CN201810229483.0A CN201810229483A CN108490029A CN 108490029 A CN108490029 A CN 108490029A CN 201810229483 A CN201810229483 A CN 201810229483A CN 108490029 A CN108490029 A CN 108490029A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N25/72—Investigating presence of flaws
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Abstract
The invention belongs to Construction Safety detection technique fields, provide a kind of exterior wall finish layer hollowing detection method.(1) method for utilizing infrared temperature gradient image to search the suspected locations of existing defects.(2) for the bad occasion of testing conditions, the ancillary technique means heated to surface using laser irradiation, amplification surface temperature difference carries out the detection of defect.(3) it for there are the suspicious regions of temperature anomaly, is compared using the difference variation in heating temperature-fall period, carries out the identification decision method that finish coat hollow imperfection whether there is.The detection method of facade facing layer defects proposed by the present invention may be implemented to detect at a distance in actually detected operation, avoid personal height dangerous operation, and easy to operate.The artificial subjectivity and unstability for carrying out temperature pattern color recognition and bringing can be not only overcome on Data Analysis Services, can also be by the batch processing of software realization image analysis, or tested and analyzed in real time.
Description
Technical field
The invention belongs to Construction Safety detection technique field, the technological means of wall quality detection is a kind of detection
Outside vertical surface of building finish coat, such as ceramic tile etc., if there are a kind of in-situ check and test methods of hollowing security risk.
Background technology
A kind of decoration of exterior wall form that exposed wall facing brick is relatively conventional in the skyscraper of current city is pasted, and with its U.S.
The advantages that seeing, is economic is widely used, but may form hollowing and fall off and bring security risk.Its main problem be because
For construction quality is up to standard or older aging, cause the adhesion strength between finish coat and concrete or brick wall base will be at any time
Between passage and be gradually reduced, when cohesive force does not reach requirement, may cause finish coat first can locally from base disengage, shape
At hollowing；If without reinforcing, hollowing area can gradually increase, eventually lead to finish coat and be detached from completely from base and cause height
Place such as falls at the accidents.Since area of detection is big, detection defect requires finely, and alien invasion working at height is limited, needs one kind
Energy quick diagnosis, carries out facade finish coat the detection means of defect generaI investigation.
Mainly there are hammering method, hubbing and infrared thermal imagery method to the detection of exterior wall finish of building defect at present, because striking
Although striking, hubbing testing result are accurate, need working at height to operate skyscraper alien invasion, detect required
Time is very long, and efficiency is low, and the subjective judgement of examined personnel is affected；And infrared imaging method is compared with other methods,
Because its is efficient, intuitive the features such as quickly manpower and materials are at low cost, in generaI investigation exposed wall facing brick hollowing using upper with apparent
Advantage, relevant departments have also promulgated the related regulation of detection and standard, but existing infrared method is in actually detected application process, by
To many restrictions, existing main problem following points：
1, when infrared method detection exposed wall facing brick hollowing, what the simple infrared image heterochromia by shooting was judged
Testing result is highly susceptible to the influence of meteorological condition, especially solar radiation, forms the restriction of testing conditions.
By stronger intensity of solar radiation irradiate under the temperature difference of exterior wall surface hollowing region and normal region not
It is disconnected to change over time,《Infrared thermal imagery method detects external wall facing bond quality technical regulation》(JGJ/T277-2012) in
Only the detection period suitable to national urban is made that regulation, but lacks the criterion of generality versatility.Application No. is
The Chinese patent proposition of 201610523425.X (infrared quality determining method of sloughing of exterior wall defect) a kind of exists to entire metope
The method that coolant liquid cools down, the method to reduce detection error are sprayed after sunlight.Although feasible but need External Wall
Surface cooling 5-15 minutes, and spray uniform, operation difficulty is relatively large in practical implementation, expense cost is higher.
When meteorological condition is bad (such as cloudy day, dense fog), the temperature difference of metope can be very small, and especially north orientation alien invasion is red
The detection result of outer thermal imaging system can substantially reduce；Application No. is 200810207217.4 Chinese patents to disclose inspection ancient times wall
The non-contact nondestructive detecting method for drawing hollowing position, is heated by light bulb External Wall surface, is obtained by infra-red thermal imaging
Thermography is obtained, is hollowing area to judge that heat rises unobvious region.Although this direction can use the inspection to sloughing of exterior wall
In survey, to improve the detection efficiency of External Wall hollowing, but when light bulb is heated again, the testing conditions such as power supply and distribution are needed, than
It is cumbersome, and the temperature rise amplitude of exterior wall surface is very small, and uneven heating is even, effect unobvious.
2, current technology means are all to cause the heterochromia of the infrared image detected to be lacked using temperature difference
The judgement of position is fallen into, the common problem always existed is exactly that colour development difference is by the colour developing selected in later image processing procedure
Temperature value range etc. needs artificial setting to adjust, the people for the entire generaI investigation of external wall because being known as much relations
Power cost, time loss greatly increase, inefficiency, and the analysis method that batch processing calculating can be carried out using computer will
Overcome the subjectivity in identification process, improves the reliability of detection identification.
3, when infrared method detection exposed wall facing brick hollowing, ambient radiation, the emissivity of metope outer surface, surface face
Color, shooting angle can have a huge impact testing result, it is possible that not being temperature caused by hollowing on infrared picture
Exceptions area, there are higher False Rates for dependence Infrared Thermogram and visible images comparison merely in this way, thus cannot fully really
Determine finish coat bonding defect, it is also necessary to carry out necessary verification using other aided detection methods such as hammering method, hubbings.
Invention content
The purpose of the present invention is：
(1) method for utilizing infrared temperature gradient image to search the suspected locations of existing defects.
Although since infrared camera temperature test precision is not high, the resolution ratio of its temperature can reach 50mK or more,
The present invention proposes to convert original infrared temperature image to temperature gradient image by data processing, in normal area and exceptions area
Borderline temperature there is apparent step, the gradient that the temperature gradient of position will be apparently higher than in region, by gradient image
It is filtered and visible light contour line compares two kinds of means and combines, filter out texture profile, be further processed, can identify
Go out that there may be the regional location of defect and profiles.
(2) for the bad occasion of testing conditions, especially northern facade or solar irradiation intensity it is undesirable in the case of, adopt
The ancillary technique means heated to surface with laser irradiation, amplification surface temperature difference carry out the detection of defect.This kind of nondominant hand
The remote transmission characteristic of Duan Liyong laser beams realizes non-contact detecting, and heats rapid, and heating amount is uniform, controllable adjustment and
Accurately, the identification decision of hollowing can be carried out using the relationship of temperature liter situation and amount of radiation after irradiation.
(3) it for there are the suspicious regions of temperature anomaly, is compared, is adornd using the difference variation in heating temperature-fall period
The identification decision method that face layer hollow imperfection whether there is.
Since there are the region of finish coat hollowing, hollowing surface quick heating forms " hot spot " when heated, when cooling, cools down
" cold spot " can be formed soon, the variation characteristic of positive and negative reversion is will appear using the temperature difference of hollow imperfection position and normal surface, excluded
The influence of the other factors such as slin emissivity, wall material, and then confirm that hollowing whether there is.The technological means improves tradition
The accuracy and reliability of infrared detection method identification, the high-altitude that contact measurement is brought is avoided compared to hammering method, hubbing
Operation is dangerous, and detection efficiency is higher.
Technical scheme of the present invention：
A kind of exterior wall finish layer hollowing detection method, steps are as follows：
(1) when exterior wall to be detected be in solar irradiation condition it is good when, the surface temperature rise period carry out facade it is red
The test of outer temperature pattern, obtains primary visible light image and infrared image, records the numbering of every image, corresponding camera site
Information and intensity of solar radiation information；
Figure is carried out to primary visible light image and infrared image with reference to the identification point of visible images according to shooting angle
As shaping calibration, it is calibrated to the flat image of face shooting；
(2) infrared image that previous step is handled is converted to temperature gradient image, is adjusted according to test case
Filtering, remove temperature gradient imaging surface texture effects, obtain surface temperature abnormal area profile diagram, then with primary visible light
Image outline is compared, and then facade original block contour line is identified from infrared image, remaining other contour lines envelope
Closed region is expressed as the suspicious block of defect；
(3) image for filtering out the suspicious block of existing defects, by the corresponding suspicious contour line of the suspicious block of obtained defect
Mark on infrared image and primary visible light image, and calculate separately the suspicious block of the defect and around it area of block and
Mean temperature；
(4) suspicious according to the defect identified on the number of record image, taking location information and primary visible light image
Region, after being positioned there are suspected defects position to building；It is examined again in temperature fall time section for suspected defects position
It examines, the operation for (1)-(3) that repeat the above steps；
Summarize each suspected defects position and peripheral region, repeatedly measure the mean temperature of detection, and calculating temperature difference, if hair
There is apparent positive and negative Alternate Phenomenon in the existing temperature difference, then judges that there are hollow imperfections at the suspected defects position.
Beneficial effects of the present invention：The detection method of facade facing layer defects proposed by the present invention, in practical inspection
It surveys in operation and may be implemented to detect at a distance, avoid personal height dangerous operation, and easy to operate.On Data Analysis Services
The artificial subjectivity and unstability for carrying out temperature pattern color recognition and bringing can not only be overcome, software realization can also be passed through
The batch processing of image analysis, or tested and analyzed in real time.
Specific implementation mode
Below in conjunction with technical solution, the specific implementation mode that further illustrates the present invention.
Embodiment
Exterior wall finish layer hollowing detection method, steps are as follows：
(1) when exterior wall to be detected be in solar irradiation condition it is good when, the surface temperature rise period carry out facade it is red
The test of outer temperature pattern, obtains primary visible light image and infrared image, records the numbering of every image, corresponding camera site
Information and intensity of solar radiation information；
Figure is carried out to primary visible light image and infrared image with reference to the identification point of visible images according to shooting angle
As shaping calibration, it is calibrated to the flat image of face shooting；
(2) infrared image that previous step is handled is converted to temperature gradient image, is adjusted according to test case
Filtering, remove temperature gradient imaging surface texture effects, obtain surface temperature abnormal area profile diagram, then with primary visible light
Image outline is compared, and then facade original block contour line is identified from infrared image, remaining other contour lines envelope
Closed region is expressed as the suspicious block of defect；
(3) image for filtering out the suspicious block of existing defects, by the corresponding suspicious contour line of the suspicious block of obtained defect
Mark on infrared image and primary visible light image, and calculate separately the suspicious block of the defect and around it area of block and
Mean temperature；
(4) suspicious according to the defect identified on the number of record image, taking location information and primary visible light image
Region, after being positioned there are suspected defects position to building；It is examined again in temperature fall time section for suspected defects position
It examines, the operation for (1)-(3) that repeat the above steps；
Summarize each suspected defects position and peripheral region, repeatedly measure the mean temperature of detection, and calculating temperature difference, if hair
There is apparent positive and negative Alternate Phenomenon in the existing temperature difference, then judges that there are hollow imperfections at the suspected defects position.
For in desired detection time, meteorological condition is bad, in the case that surface temperature does not have notable difference, using swashing
Smooth surface light source irradiates exterior wall 2-5 minutes to be detected, and temperature rise and the recovery of infrared cameras track record irradiation area is used in combination
Whether overall variation situation there is temperature anomaly region in viewing area, if there is exceptions area, chooses the apparent region of phenomenon
Face carries out image analysis processing by step (1)-(3), and draws the temperature variation curve of abnormal area and peripheral region；Profit
Outer surface of building Calculation of Heat Transfer is carried out with the laser emitting power of area source, if result of calculation and actual test are coincide, is then judged
The region is hollow imperfection position.
Claims (2)
1. a kind of exterior wall finish layer hollowing detection method, which is characterized in that steps are as follows：
(1) when exterior wall to be detected be in solar irradiation condition it is good when, the surface temperature rise period carry out facade infrared temperature
Image measurement is spent, primary visible light image and infrared image are obtained, records the numbering of every image, corresponding taking location information
And intensity of solar radiation information；
According to shooting angle, with reference to the identification point of visible images, it is whole that image is carried out to primary visible light image and infrared image
Shape is calibrated, and the flat image of face shooting is calibrated to；
(2) infrared image that previous step is handled is converted to temperature gradient image, filtering is adjusted according to test case,
Remove temperature gradient imaging surface texture effects, obtain surface temperature abnormal area profile diagram, then with primary visible light image
Profile is compared, and then facade original block contour line is identified from infrared image, other remaining contour line enclosed areas
Domain representation is the suspicious block of defect；
(3) image for filtering out the suspicious block of existing defects identifies the corresponding suspicious contour line of the suspicious block of obtained defect
On infrared image and primary visible light image, and calculate separately the suspicious block of the defect and the area of block and average around it
Temperature；
(4) according to the defect suspicious region identified on the record number of image, taking location information and primary visible light image,
After being positioned there are suspected defects position to building；It is examined again in temperature fall time section for suspected defects position, weight
The operation of multiple above-mentioned steps (1)-(3)；
Summarize each suspected defects position and peripheral region, repeatedly measure the mean temperature of detection, and calculating temperature difference, if finding temperature
There is apparent positive and negative Alternate Phenomenon in difference, then judges that there are hollow imperfections at the suspected defects position.
2. exterior wall finish layer hollowing detection method according to claim 1, which is characterized in that for desired detection time
Interior, meteorological condition is bad, in the case that surface temperature does not have notable difference, irradiates exterior wall 2-5 to be detected using laser area source
Minute, the overall variation situation of the temperature rise and recovery of infrared cameras track record irradiation area is used in combination, is in viewing area
It is no temperature anomaly region occur, if there is exceptions area, the apparent area surface of phenomenon is chosen, image is carried out by step (1)-(3)
Analyzing processing, and draw the temperature variation curve of abnormal area and peripheral region；It is carried out using the laser emitting power of area source
Outer surface of building Calculation of Heat Transfer then judges the region for hollow imperfection position if result of calculation and actual test are coincide.
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| CN201810229483.0A CN108490029B (en) | 2018-03-13 | 2018-03-13 | Method for detecting hollowing of outer wall finish coat |
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| CN108490029B CN108490029B (en) | 2020-08-14 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542688A (en) * | 2019-09-24 | 2019-12-06 | 南京工大建设工程技术有限公司 | Method for monitoring furnace temperature and defects in fire resistance test process of building component in real time |
| CN110987992A (en) * | 2020-01-02 | 2020-04-10 | 上海市建筑科学研究院有限公司 | Back-scattering imaging-based quantitative identification method for internal defects of external thermal insulation system of external wall |
| CN111366602A (en) * | 2020-03-19 | 2020-07-03 | 三一筑工科技有限公司 | Method, device and system for detecting compactness of concrete in prefabricated cavity wall |
| CN111711765A (en) * | 2020-05-29 | 2020-09-25 | 杭州电子科技大学 | Part production process inspection system |
| CN112927214A (en) * | 2021-03-12 | 2021-06-08 | 深圳信息职业技术学院 | Building defect positioning method, system and storage medium |
| CN113588783A (en) * | 2021-07-07 | 2021-11-02 | 宁波和邦检测研究有限公司 | Cement mortar hollowing detection method and system, storage medium and intelligent terminal |
| WO2022091702A1 (en) * | 2020-10-30 | 2022-05-05 | 富士フイルム株式会社 | Infrared thermal image analysis device, infrared thermal image analysis method, and program |
| CN115598178A (en) * | 2022-12-14 | 2023-01-13 | 天津思睿信息技术有限公司（Cn） | Infrared detection method and system for hollowing defects of building wall |
| CN117169477A (en) * | 2023-10-25 | 2023-12-05 | 广东省装饰有限公司 | Building indoor ground hollowing degree assessment method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06201625A (en) * | 1992-10-26 | 1994-07-22 | Puranetsuto Kk | Apparatus and method for searching defect |
| JP2002257761A (en) * | 2000-12-25 | 2002-09-11 | Sekisui Chem Co Ltd | Probing method for defect of outside wall material, repairing method for outside wall material, and coating material for surface finishing of outside wall material |
| CN101451970A (en) * | 2008-12-18 | 2009-06-10 | 上海交通大学 | Non-contact nondestructive detecting method for hollow drum position of ancient mural painting |
| CN103195217A (en) * | 2013-04-23 | 2013-07-10 | 山东建筑大学 | Adhering outer wall outer heat insulating system energy-saving reconstruction base layer processing method for existing buildings |
| CN203310787U (en) * | 2013-06-28 | 2013-11-27 | 江苏易可纺家纺有限公司 | Heat insulation cloth testing platform |
| CN205449851U (en) * | 2015-12-22 | 2016-08-10 | 徐州市宏达土木工程试验室有限责任公司 | Infrared thermal imagery detecting system of building door and window and wall body combination defect |
| CN105866174A (en) * | 2016-03-22 | 2016-08-17 | 中国矿业大学(北京) | Method and system for determining infrared thermographic detection occasion of bonding defect of exterior-wall facing brick |
| CN106018420A (en) * | 2016-07-05 | 2016-10-12 | 江苏方建质量鉴定检测有限公司 | Infrared quality detecting method for hollowing defects of outer wall |
-
2018
- 2018-03-13 CN CN201810229483.0A patent/CN108490029B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06201625A (en) * | 1992-10-26 | 1994-07-22 | Puranetsuto Kk | Apparatus and method for searching defect |
| JP2002257761A (en) * | 2000-12-25 | 2002-09-11 | Sekisui Chem Co Ltd | Probing method for defect of outside wall material, repairing method for outside wall material, and coating material for surface finishing of outside wall material |
| CN101451970A (en) * | 2008-12-18 | 2009-06-10 | 上海交通大学 | Non-contact nondestructive detecting method for hollow drum position of ancient mural painting |
| CN103195217A (en) * | 2013-04-23 | 2013-07-10 | 山东建筑大学 | Adhering outer wall outer heat insulating system energy-saving reconstruction base layer processing method for existing buildings |
| CN203310787U (en) * | 2013-06-28 | 2013-11-27 | 江苏易可纺家纺有限公司 | Heat insulation cloth testing platform |
| CN205449851U (en) * | 2015-12-22 | 2016-08-10 | 徐州市宏达土木工程试验室有限责任公司 | Infrared thermal imagery detecting system of building door and window and wall body combination defect |
| CN105866174A (en) * | 2016-03-22 | 2016-08-17 | 中国矿业大学(北京) | Method and system for determining infrared thermographic detection occasion of bonding defect of exterior-wall facing brick |
| CN106018420A (en) * | 2016-07-05 | 2016-10-12 | 江苏方建质量鉴定检测有限公司 | Infrared quality detecting method for hollowing defects of outer wall |
Non-Patent Citations (3)
| Title |
|---|
| E.BARREIRA,V.P.DE FREITAS: "Evaluation of building materials using infrared thermography", 《CONSTRUCTION AND BUILDING MATERIALS》 * |
| 田旭园 等: "红外图像处理在墙体空鼓检测上的应用研究", 《计算机测量与控制》 * |
| 赵锐: "红外热像法检测建筑外墙饰面粘结质量技术研究", 《工程设计施工与管理》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542688A (en) * | 2019-09-24 | 2019-12-06 | 南京工大建设工程技术有限公司 | Method for monitoring furnace temperature and defects in fire resistance test process of building component in real time |
| CN110987992A (en) * | 2020-01-02 | 2020-04-10 | 上海市建筑科学研究院有限公司 | Back-scattering imaging-based quantitative identification method for internal defects of external thermal insulation system of external wall |
| CN111366602A (en) * | 2020-03-19 | 2020-07-03 | 三一筑工科技有限公司 | Method, device and system for detecting compactness of concrete in prefabricated cavity wall |
| CN111711765A (en) * | 2020-05-29 | 2020-09-25 | 杭州电子科技大学 | Part production process inspection system |
| WO2022091702A1 (en) * | 2020-10-30 | 2022-05-05 | 富士フイルム株式会社 | Infrared thermal image analysis device, infrared thermal image analysis method, and program |
| CN112927214A (en) * | 2021-03-12 | 2021-06-08 | 深圳信息职业技术学院 | Building defect positioning method, system and storage medium |
| CN113588783A (en) * | 2021-07-07 | 2021-11-02 | 宁波和邦检测研究有限公司 | Cement mortar hollowing detection method and system, storage medium and intelligent terminal |
| CN115598178A (en) * | 2022-12-14 | 2023-01-13 | 天津思睿信息技术有限公司（Cn） | Infrared detection method and system for hollowing defects of building wall |
| CN117169477A (en) * | 2023-10-25 | 2023-12-05 | 广东省装饰有限公司 | Building indoor ground hollowing degree assessment method |
| CN117169477B (en) * | 2023-10-25 | 2024-01-12 | 广东省装饰有限公司 | Building indoor ground hollowing degree assessment method |
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