Railway switch gap offset detection method based on image processing

Abstract

The invention discloses a railway switch gap offset detection method based on image processing, which comprises the following steps of: S11) preprocessing original input images to obtain binary images of the original input images; S12) designing a gap template by adopting a statistic method, matching the binary images of the original input images obtained in the step S11 with the gap template through a template matching algorithm, and finding image areas which are least different from the gap template in the binary images; and S13) conducting image segmentation to the image areas obtained in the step S12, analyzing the segmented image areas, removing the image areas without gaps, finding the image areas with gaps, realizing the accurate positioning of the gaps and calculating the offset of the left and right sides of the gaps. The railway switch gap offset detection method based on image processing has the advantages that the gap offset data can be effectively calculated in real time, the cover is not required to be opened for inspection and the goal of high gap monitoring intuitiveness and accuracy is realized.

Description

technical field [0001] The invention relates to an image processing-based method for detecting the gap offset of a railway turnout, which is particularly suitable for measuring the gap offset of a ZD6 type railway switch switch machine. Background technique [0002] With the rapid development of my country's railway construction, high-speed, high-density traffic sections are increasing. In order to ensure traffic safety, the requirements for the quality and state stability of turnouts are getting higher and higher. The railway switch traction switch machine is the key equipment to realize the normal conversion and ensure the safety of driving. The gap offset of the switch machine, the switching resistance of the switch machine, and the vibration acceleration of the switch machine are important parameters reflecting the normal operation of the switch machine. . "Railway Signal Maintenance Rules" stipulates that the maintenance of turnout switching equipment shall not be less...

AI Technical Summary

Problems solved by technology

However, simple inspections cannot detect potential hidden dangers in the quality of equipment in time.

At present, the gap detection of turnout switching equipment in China mainly adopts mechanical contact type or photoelectric detection method for detection, and most of them need to open the cover for inspection. In the application process of complex environment on site, there are situations such as unintuitive and high false alarm rate. not ideal

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