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Method for directly collecting gap data measured by indication lever gap image of railway point switch

A technology for representing poles and switch machines, which is applied in image data processing, image analysis, railway signals, etc., can solve the problems of difficult control of marking setting accuracy and difficult construction, and achieves the effect of small error, simple setting and reduced difficulty.

Active Publication Date: 2012-07-11
JINAN RAILWAY TIANLONG HIGH TECH DEV CO LTD
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AI Technical Summary

Problems solved by technology

Since it is necessary to set the mark on the indicating rod, it is necessary to modify the switch machine, the construction is more difficult, and the setting accuracy of the mark is also difficult to control

Method used

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  • Method for directly collecting gap data measured by indication lever gap image of railway point switch
  • Method for directly collecting gap data measured by indication lever gap image of railway point switch

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Embodiment Construction

[0039] Such as figure 1 As shown, the method for directly collecting the gap data obtained from the image of the rod gap of the railway switch machine includes the following steps:

[0040] 1), storing the collected notch image of the indication rod in a designated area of ​​the memory;

[0041] 2), read the representation bar notch image to be processed, as shown in Figure 2;

[0042] 3), on the image of the notch of the bar, the notch of the bar is limited in a preset area, and the limited parameters of this area are preset according to the notch image of the bar collected; set the bar on the vertical axis The vertical coordinate mark of the dividing line between the upper pole and the lower pole representing the pole is y0;

[0043] 4) carry out processing including binarization and morphological filtering to the image representing the rod gap in the image in the limited area, and then perform feature extraction to obtain the edge map of the L-shaped gap indicator in the ...

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Abstract

The invention relates to a method for directly collecting gap data measured by an indication lever gap image of a railway point switch, which is characterized by comprising the following steps: storing the collected indication lever gap image; reading the indication lever gap image to be processed; limiting an indication lever gap into a preset area; obtaining an edge coordinate of an L-shaped gap indicator in the indication lever gap image; extracting the edge information of a gap by using an SOBEL edge searching method; filtering the edge information morphology of the gap into a gap analysis image; carrying out histogram statistic on the gap analysis image to obtain two edges of the gap; accurately searching the two edges of the gap to obtain an edge coordinate of the gap; obtaining notch data according to the image resolution ratio and the coordinate; and outputting the coordinate and the gap data, newly collecting the said rod gap image and repeating all the steps. The method has the beneficial effects that a mark is not required to be set, the point switch is not required to be improved, and the results are not influenced by the mark setting precision and are more accurate.

Description

technical field [0001] The invention relates to the technical field of gap monitoring of a railway switch machine indication rod, in particular to a method for collecting gap data of a railway switch machine indication rod gap image. Background technique [0002] With the rapid development of my country's railway modernization, the speed and density of trains have also been greatly increased. In order to keep the railway signal equipment in good quality, higher requirements are put forward for the efficient and scientific maintenance work. [0003] The switch machine is the main signal equipment of the railway turnout control system. In addition to being used for the switching and locking of the turnout, the switch machine indicates that the offset of the rod notch reflects the position and state of the switch point rail (and core rail) . [0004] There is an L-shaped notch indicator (mainly the vertical part of the indicator, and the horizontal part is only used for fixing...

Claims

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Application Information

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IPC IPC(8): B61L5/10B61L23/04G06T7/00
Inventor 秦广军李志方卢立清
Owner JINAN RAILWAY TIANLONG HIGH TECH DEV CO LTD
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