Dissertation
Dissertation > Industrial Technology > Building Science > Construction > Construction Management > Technology Management > Quality check

Study on Quality Control of External Walls of Buildings Based on Infrared Technology

Author FanXiaoYi
Tutor JiangJiTong
School Ocean University of China
Course Management Science and Engineering
Keywords The external walls of buildings Infrared thermal imaging method detection Site testing Image processing Quantitative Analysis
CLC TU712.3
Type Master's thesis
Year 2011
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Along with the socio-economic development, China's urban construction rapid development, building more higher, but because of the impact of construction technology and occasional natural factors, the quality of the external walls of the building defects ensue. But there is no suitable detection quality of the exterior wall of the building defects detection. Detection of infrared thermal imaging method has a fast, non-contact detection of a large area without damaging the test object, the visual image and the test results, and easy to realize the advantages of automation and real-time observation of quality defects detection is no suitable means of detection can fill the external walls of buildings blank. Currently at the exploratory stage of the quality of the exterior wall of the building infrared thermal imaging method detection has not yet developed the testing standards, the lack of a guiding document in accordance with the norms scene detection process. Affect the conditions for on-site detection process, the results are not systematic and in-depth research and analysis, image processing, and other key technologies, seriously restricting the promotion and application of new quality control technology, solve the above problem, in previous studies based on papers explore and study the contents of the following aspects: (1) paper a thorough comparative analysis of the strengths and weaknesses of the existing detection methods in the inspection of the quality of the external walls of buildings, unique for the detection of infrared thermal imaging method advantage of the feasibility of the application in the quality control of the external walls of buildings and system research. (2) thesis elaboration of field detection and control of the quality of the exterior wall of the building process, as the domain wall surface emissivity and infrared imaging method for determining the impact of the environmental conditions of the site testing discussed and improved, as well as prepare the MATLAB program to simulate the the comprehensive daily temperature and the amount of solar radiation to determine the optimal detection of the weather conditions and the best detection periods; papers presented for the first time the average rate of temperature rise, weighted area method both quantitatively determine the defects, and at the same time determined quality levels for imperfections criterion. Established a complete set of both the quality of the exterior wall of the building defects quantitative infrared scene detection and post-data analysis combining theory and method. (3) is established based on MATLAB processing Common Image Format (. Bmp) has a the image geometry editing module, the image temperature correction module, images, statistical analysis, defect location automatically judgment module infrared image processing system. (4) Finally, a small number of the external walls of the building-site detection of infrared thermal imaging inspection method and infrared image processing system on the test results, the results of the qualitative and quantitative analysis. In order to establish the feasibility and advantages of infrared thermal imaging method detects in the quality control of the external walls of buildings, already have a project to promote the conditions.

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