Conveying belt deviation fault detection method based on image identification technology

Abstract

The invention discloses a conveying belt deviation fault detection method based on an image identification technology. The method comprises the following steps of a preparation process: collecting a monitoring image, and calibrating belt edges on a left side and a right side under a normal running situation of the conveying belt, establishing a virtual graduated scale on a calibrated position, andonly executing the processing one time in an equipment installation stage; and a detection process: in an equipment running stage, obtaining the practical positions of edges on the left side and theright side of the conveying belt through an image vision algorithm, comparing the practical position of the edge of the belt on the image and the calibration position in a preparation stage to obtainthe deviation pixel distance of the belt on a video image, and finally, reducing the deviation pixel distance into a true pixel distance through a fixed proportional scale. By use of the conveying belt deviation fault detection method, whether the belt deviates or not can be more accurately detected, and an accurate value of a deviation value can be given, the robustness of an algorithm can be improved while belt deviation accuracy is improved, so that the conveying belt deviation fault detection method can be favorably suitable for complex working conditions under an indoor condition, an outdoor condition and different illumination conditions, learning samples are not required, and sample collection cost is lowered.

Description

technical field [0001] The invention belongs to the field of mechanical engineering and automatic control, in particular to a transmission belt deviation detection method based on image recognition technology, which is used for transmission belt deviation detection and automatic correction. Background technique [0002] Belt deviation is one of the faults with the highest failure rate of belt conveyors, causing damage to the conveyor belt or irregular spillage of conveyed materials, which seriously affects the safe operation of the conveying equipment and causes serious waste of materials. In severe cases, it will cause damage to the conveyor belt. If some non-resistance fuel is transmitted, the resistance of the conveyor belt will be enhanced due to the deviation of the belt, which will cause a fire. Therefore, coal-fired power plants, mines, docks and other units need to regularly send workers to inspect the conveyor belt (or designate special personnel to conduct remote m...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for detecting the deviation of the conveyor belt based on image recognition technology, which can more accurately detect whether the belt is deviation and give the deviation The precise value of the amount; while improving the accuracy of belt deviation, it can also improve the robustness of the algorithm, which can well adapt to complex working conditions indoors, outdoors and under different lighting conditions; no need to learn samples, saving a lot of sample collection cost

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