Burst Of Solar Thermal Collector Tracked By 3D Digital Image

Currently in the country as a new type of solar energy to obtain large-scale use of its core components collector tube but there is easily broken security problems, and has not yet been established targeted general monitoring technology and methods. This paper proposes the use of an image measuring method based on computer vision technology recently developed- digital image correlation method, real-time tracking process collector tube rupture occurred, in order to meet the needs of its security monitoring. The main content of the research work include: the establishment, processing and analysis of the image signal monitoring digital image correlation method and experimental systems, and solar collector tube rupture safety determination analysis.In order to facilitate all-glass vacuum heat distortion characteristics extraction tube solar collectors need to develop a means of VIC-3D image acquisition software for processing information technology solutions and implementation of the road, build a digital image correlation method and laboratory experimental platform collector tube is heated platform combining solar collector tube rupture safety analysis of the experimental system. With this system, you can obtain a collector tube variation in the surface area of the heated state, and thus find the broken tube solar collectors critical state.Industrial use CCD camera(digital camera) to the collector of the specimen surface to take pictures, get laboratory solar collector system operating state of the surface of the glass collector tubes deformed image, the proposed application of digital image correlation method Thermal stress caused by changes in the collected image information stored in the image processing and analysis of technical solutions, access to some of the basic laws of the solar collector thermal deformation, compared with the theoretical results of the analysis show that the monitoring image signal processing and analysis of the reliability of the proposed method.Thermal deformation analysis based on the all-glass vacuum tube solar collectors on the proposed technical approach used to break the glass tube solar collector made safe predestined. Real-time acquisition of the operating state of the glass tube collectors image signal,digital image recognition technology to obtain meso-deformed state collector tube, the extraction may produce rupture location, size and other information, and the information processing section, set contrast surface area of the heat pipe heat will happen after rupture risk criteria changed, thereby obtaining safety collector tube stability status information.