Refractory brick geometric dimension measurement method

Abstract

The invention discloses a refractory brick geometric dimension measurement method. The method comprises the steps that an original image of a refractory brick is collected, and filtering noise reduction and threshold segmentation are performed on the original image; a connected domain of the refractory brick is obtained, the connected domain of the refractory brick is separated from the original image, and a refractory brick connected domain image is obtained; morphological processing is performed on the refractory brick connected domain image, and a corrected refractory brick image is obtained; edge detection is performed on the corrected refractory brick image, and an edge detection image of the refractory brick is obtained; and through edge discrete point detection to curve formation ofthe boundary of the refractory brick, linear detection is performed on discrete points through a Hough transformation algorithm to fit out multiple straight lines. Through the refractory brick geometric dimension measurement method, efficiency and precision are both improved.

Description

technical field [0001] The invention relates to a method for measuring the geometric dimensions of refractory bricks. Background technique [0002] Refractory bricks, according to international standards, refer to non-metallic materials and products that have stable chemical and physical properties and can be used normally in high temperature environments (not excluding a certain proportion of metals). Refractory bricks can withstand various mechanical actions and physical and chemical changes at high temperatures, and are widely used in metallurgy, chemical industry, petroleum, power generation and other industrial fields. In recent years, my country's refractory brick production enterprises have developed rapidly, and the market competition for refractory bricks has become increasingly fierce. Many enterprises have improved production technology and quality inspection technology, and realized production and testing automation to improve their competitiveness. On the produ...

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Problems solved by technology

In the production process of refractory bricks, the vibration and noise of the press are very harmful to the physical and mental health of the workers, and many defects are judged by the workers based on their experience, which is greatly affected by the subjective, so it is impossible to establish a unified evaluation standard

In addition, in the process of mass production, this process not only consumes a lot of labor costs, but also the repetitive and monotonous measurement and observation work can easily cause personnel fatigue and misjudgment. Serious economic loss, even seriously affecting the production of steel

Therefore, in some dangerous occasions that are not suitable for manual work, occasions where artificial vision is difficult to meet the requirements, and occasions that are highly repeatable and intelligent and cannot be continuously and stably inspected by human eyes

At present, there is no measurement system or method for automatic measurement of the geometric dimensions of refractory bricks

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