Intelligent multifunctional belt surface patch edge detection method

Abstract

The invention discloses an intelligent multifunctional belt surface patch edge detection method which is characterized by including steps: (1) two direction templates are adopted to have neighborhood convolution with images in an image space to complete image gradient magnitude calculation; (2) the gradient value and the gradient direction of edge pixel points are calculated, and edge searching is performed according to the gradient direction information to obtain accurate conveying belt spot image edge point information; and (3) target edge sub pixel positioning is achieved through quadratic polynomial interpolation in the edge point gradient direction. The intelligent multifunctional belt surface patch edge detection method completely eradicates potential safety hazards of conveying belts, reduces irregular maintenance and shutdown overhaul time of the conveying belts, improves production efficiency, has a protection effect for safety production, has important practical significances for promoting the economic development, has a wide application prospect, and can be used for belt surface abrasion detection and surface greasy dirt detection.

Description

technical field [0001] The invention relates to a belt detection method, in particular to a multifunctional intelligent belt surface plaque edge detection method. Background technique [0002] my country is a country with a vast territory, superior geological conditions and rich mineral resources in the world, in which the transmission belt plays a leading role in the material transmission in various fields, ports and power systems. In the process of transporting materials, the transportation system mostly uses belt transportation. The belt transportation system is an important part of production. The belt transportation system has a long line and is composed of multiple links and various transmission equipment. Due to the belt operating load Large, continuous running time and other reasons, will cause steel wire rope core corrosion, belt surface wear, belt steel core fracture, belt thickness reduction and other faults, once a fault occurs, the transmission line will be inte...

AI Technical Summary

Problems solved by technology

[0027] Using this interpolation algorithm only interpolates in the X direction and Y direction, without considering that the subdivision algorithm should be carried out in the direction of the gray gradient of the edge point, and the direction information of the edge point is lost, resulting in a decrease in calculation accuracy; in addition , the limitation of the constraint condition, that is, the gradient value of the edge point must be greater than the gradient value of the four pixel points above, below, left, and right, and the probability of satisfying this condition at the same time is relatively small

It leads to a large error in the calculation result, especially for the detection of the edge of the curve, the error is very large

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