Wall and floor tile side bottom surface defect measuring device based on laser TOF technology

Abstract

The invention provides a wall and floor tile side bottom surface defect measuring device based on a laser TOF (Time of Flight) technology. The wall and floor tile side bottom surface defect measuring device comprises a group of laser transmitters, a return light receiver, a data acquisition system and a data processing system, the laser emitters are respectively arranged on the bottom surface and four side surfaces of the wall and floor tile at certain distances and are used for emitting laser to each surface, the return light receivers and the laser emitters are arranged in pairs, the return light receivers are used for receiving the laser emitted by the laser emitters, and the return light receivers are used for receiving the laser emitted by the laser emitters. The received data is collected by the data collection system and transmitted to the data processing system, and the data processing system carries out three-dimensional point cloud computing. According to the device, the side bottom surface defects of the wall and floor tiles can be measured permanently, meanwhile, the enterprise cost is not increased too much, and meanwhile, the device serves as an auxiliary device of a wall and floor tile full-plane detection system and can be matched with a wall and floor tile front face high-precision measurement system, so that full-plane coverage of the wall and floor tiles can be achieved.

Description

technical field [0001] The invention provides a device for measuring defects on the side and bottom of wall and floor tiles based on laser TOF technology, which belongs to the technical field of detection methods. Background technique [0002] At present, the side and bottom surfaces of wall and floor tiles are mainly visually inspected manually, especially the bottom surfaces, which are often not inspected or randomly inspected. This will bring hidden dangers to the quality inspection and even grading of wall and floor tiles. [0003] Machine vision is currently being used more and more widely, especially in factory automation inspection applications, where machine vision is gradually replacing manual labor. Machine vision not only plays an increasingly important role in detection efficiency and accuracy, but also in complex environments. [0004] Although the application of machine vision in all walks of life has become mature, it is not widely used in the quality inspec...

AI Technical Summary

Problems solved by technology

However, for the detection of the side and bottom surfaces of wall and floor tiles, on the one hand, its important procedure is inferior to that of the main plane, and on the other hand, the cost of visual inspection equipment is high, which makes the detection of the side and bottom surfaces often easy to ignore

[0006] On the one hand, because the existing technology is mainly for manual visual inspection of wall and floor tiles, it is often easy to cause missed or wrong inspections due to human eye fatigue, subjectivity, or mixed interference from on-site lighting problems and the color of the wall and floor tiles.

On the other hand, pure visual inspection or high-precision 3D measurement can achieve high-precision measurement of defects on the bottom surface of the opposite side, but the cost is too high

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