Total quality control of the cyber-physical production using machine vision technologies

Abstract

The total control is made for each separate unit of the item being manufactured to prevent any scrap. The automatic control tools are a part of information, measurement and controlling sub-systems, which use the machine vision technology. The information sub-system is done with the cyber-physical production calculation potency. The measurement sub-system is a set of digital cameras (optical detectors) and the artificial illumination semiconductor sources. The controlling sub-system regulates the item position with turning mechanisms inside the closed cyber-physical system technological chamber. A set of sub-systems performs a non-destructible item quality control with the item surface photographic images and stereo-maps program analysis, which should not contain non-homogeneous sections like scars, fissures, inclusions and other and any deviations of geometrical dimensions. The calculator three-dimension item image is formed with reconstruction algorithms of two-dimension photographs received in different views and illumination conditions and the means of laser scanning. The item surface quality requirements in the enlightened areas and obscured ones are defined with rendering equation, which are permitted for the item digital twin with calculator numerous methods. The quality control requires to compare with the reference energy and color measurement item surface characteristics, which are defined with mathematical calculations and optical measurement means. There is a scheme given of information, measurement and controlling cyber-physical system channels, which engage the machine vision technologies to control the item quality.

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