Automatic detection method for point switch notch and system and storage medium

Abstract

The invention discloses an automatic detection method and system for a point switch notch and a storage medium, and the method enables a template matching algorithm and a gray integral projection algorithm to be applied to the real-time detection of the notch, and achieves the accurate and visual detection of a notch value through the analysis of a real-time photographed point switch notch image or a real-time photographed point switch notch video. Actual tests show that the algorithm used in the invention is suitable for point switch notch detection, the change of the illumination intensity in the image acquisition process does not influence the detection result, and the noise existing in the acquired image does not influence the extraction of the notch detection line, so the algorithm has strong robustness. Starting from the algorithm, the reference line of the gap detection adopts an automatic identification mode, and does not need to be manually delimited; according to the invention, the problem that reference lines need to be manually delimited at the notch fixing ends of a plurality of point switches respectively is solved, the calibration work which must be performed due toinaccurate manual reference line delimiting is avoided, the actual working efficiency is greatly improved, and the intelligent level of notch detection is improved.

Description

technical field [0001] The invention relates to the technical field of switch machine gap detection, in particular to a method, system and storage medium for automatic detection of switch machine gaps. Background technique [0002] In recent years, my country's transportation industry has developed rapidly, a large number of passenger dedicated lines have been built, and the traffic network has become increasingly complex, which puts forward high standards and strict requirements for the safety and reliability of train signaling equipment. As an important infrastructure of the traffic signal station interlocking system, the turnout and its conversion equipment are a key step to ensure the safety of train operation, and at the same time they are the weak link in rail transit. The switch machine is the executive mechanism of the turnout control system, which is used to realize the switching, locking and detection of the position of the turnout. In the turnout conversion devic...

AI Technical Summary

Problems solved by technology

[0008] The gap detection algorithm used in the real-time online detection of switch machines based on image processing technology is likely to cause the following two problems: First, due to the weak stability of the algorithm, the edge of the target will be greatly blurred when the light changes, causing errors in the recognition results, and even The identification failed; secondly, the existing gap detection algorithm can only automatically identify the edge line corresponding to the mobile end of the gap, while the baseline corresponding to the fixed end of the gap needs to be manually demarcated. There are too many switch machines, and it is very cumbersome to manually delineate the notch fixed end of each switch machine and calibrate the baseline during the initial configuration of the system, which consumes a lot of labor costs and low work efficiency

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