Wagon loading video monitoring-based box corner slot-in state detection method

Abstract

The invention discloses a wagon loading video monitoring-based box corner slot-in state detection method. The method comprises the following steps of S1, obtaining a color wagon lateral box body image; S2, extracting an edge region and a background region of the image to obtain a lateral segmented image of the box body; S3, intercepting a partial region of the lateral box body image to determine the left and right edge lines and a lower edge line of the box body; S4, detecting a straight line in the box corner positioning image by adopting Hough transformation; S5 according to the inclinationangle of the straight line, establishing a convex fixing device sample library; S6 establishing a box corner card slot sample library; S7 judging the box corner slot-in state according to the detection results in the steps S5 and S6. The wagon box corner slot-in state is detected directly through the image processing technology, an objective and accurate detection analysis result can be given, andthe defects of a traditional manual detection method are avoided.

Description

technical field [0001] The invention relates to the field of monitoring the loading state of railway wagons, in particular to a method for detecting the state of box corners entering grooves based on video monitoring of loading of railway wagons. Background technique [0002] At present, in the daily inspection of the loading state of railway freight cars, the state of box corners entering the groove is a key link that needs to be monitored. After the railway wagon finishes loading the container goods, the container body should be placed on the designated position of the wagon accurately. The box body of the existing railway freight car is provided with box corner clamping slots at the box corner positions on both sides, and convex fixing devices are installed at the designated positions of the four right angles of the rectangular board car. When the corner slots of the box are accurately connected with the convex fixing device, the box body can be fixed at the designated p...

AI Technical Summary

Problems solved by technology

However, the size of the box corner slot and the convex fixing device is extremely small compared to the vehicle parts, and the number of pixels occupied by the formed container side image is also very small, and once the state of entering the slot is abnormal, it does not enter the slot It is also difficult to determine the position of the convex fixing device, and the surface of the convex fixing device is prone to rust and wear, which makes it difficult to detect the groove entry state based on image processing technology

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