红外技术, 2023, 45 (4): 410, 网络出版: 2023-06-12   

基于红外图像处理的建筑外窗气密性能现场检测

On-Site Detection of Airtightness of Building Windows Based on Infrared Image Processing
作者单位
1 烟台大学建筑学院, 山东烟台 264005
2 中铁建工集团第二建设有限公司, 山东青岛 266112
3 烟台东方能源科技有限公司, 山东烟台 264005
摘要
针对目前建筑外窗气密性现场检测方法无法保证其所有安装外窗的气密性等级全部达标, 同时缺乏高效、便捷的检测手段, 提出一种外窗气密性能等级现场检测方法, 通过热像仪对外窗进行红外图像采集, 对图像中的异常区域进行缺陷检测并计算缺陷面积, 建立外窗缺陷红外检测模型。根据实验测得的室内外温差、外窗缺陷面积、空气渗透量, 建立外窗空气渗透量计算模型, 将此模型与外窗缺陷红外检测模型结合求得窗户的空气渗透量, 实现外窗气密性能的现场检测, 初步判定外窗是否符合相应的气密性能等级, 提高了外窗气密性能现场检测的效率, 为外窗气密性能等级现场判定提供一种新的途径。
Abstract
Current methods of on-site detection of airtightness of building windows cannot ensure that the airtightness grades of all windows satisfy the standard. Moreover, there is a lack of efficient and convenient detection methods. Thus, we proposed an on-site method to detect the airtightness performance level of windows. In this study, an infrared image of the windows is collected using a thermal imager, the abnormal area in the image is detected and the defect area is calculated, then an infrared detection model for window defects is established. Based on the experimentally measured indoor–outdoor temperature difference, the defect area of the window and air infiltration, a calculation model for the air infiltration of windows is built. The model is combined with the infrared detection model of exterior windows defects to obtain the air infiltration of the window, and the on-site detection of the windows airtightness performance is realized and then preliminary determine of whether the window meets the corresponding airtightness performance level, which improves the efficiency of the on-site inspection of the airtightness performance of windows and provides a new method for the on-site determination of the airtightness performance level of windows.
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