Thermal infrared detection method and system for external wall heat insulation nail

Abstract

The invention relates to the field of wall detection, and discloses a thermal infrared detection method and system for an external wall heat insulation nail. The method comprises the following steps:S1, a to-be-detected wall is planned into a plurality of regions, and a plurality of regions are randomly selected as detection sampling regions; S2, the detection sampling regions are heated by a heating source, the heating source is sunlight or a heating device, and if the heating source is a heating device, the heating device is adjusted, and a heater of the heating device is turned on to heatthe detection sampling regions; S3, after the detection sampling regions are heated to cause temperature rise of a heat insulation layer, a thermal image is shot by a thermal infrared imager, and thethermal image is transmitted back in real time by a wireless communication device; and S4, after a clear image is transmitted back, the thermal infrared imager and the heating device are removed, andthe detection data of the whole wall is obtained. The wall can be heated and thermal infrared detection can be carried out on a heat insulation nail without being limited by conditions such as high altitude or corners.

Description

technical field [0001] The invention relates to the field of wall detection, more specifically, it relates to a thermal infrared detection method and system for external wall insulation nails. Background technique [0002] Generally, after the building is completed or used for a period of time, the exterior wall of a general building needs to be inspected for safety requirements. Generally, the inspection content includes wall cracks, hollows, etc. The existing detection methods include, using The infrared thermal imager takes pictures of the wall, and through imaging analysis, the defects of the wall are obtained; [0003] However, in some walls with insulation layers, the content to be detected also includes the detection of the number of insulation nails on the insulation layer, but the above-mentioned method of infrared imaging is not suitable for the detection of insulation nails. The wall of the first layer usually includes a base layer, an insulation layer and an out...

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Problems solved by technology

[0005] Although the technology disclosed in the above patent can heat the wall, resulting in a large temperature difference between the layers of the wall, and can detect the number of heat preservation nails, the setting of the active heat source in the above technology has special installation requirements. The active heat source should be fixedly installed on the wall in advance, heated to a certain degree and then removed for infrared scanning. The detection position of this detection method is limited. Both the inside of the body and the outside of the wall are difficult to fix and install. If the construction party cuts corners and materials in these positions that cannot be detected using existing technologies in order to save processes or materials, then this technology will not be able to detect them, and it will not be able to reach the opposite wall. The real detection effect of body mass

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