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Method and device for detecting vibration information of an electric railway vehicle

A railway vehicle, electric technology

Active Publication Date: 2020-06-09
KOREA RAILROAD RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is difficult to deduce an accurate quantitative value because it is judged by the naked eye

Method used

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  • Method and device for detecting vibration information of an electric railway vehicle
  • Method and device for detecting vibration information of an electric railway vehicle
  • Method and device for detecting vibration information of an electric railway vehicle

Examples

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no. 1 example

[0047] Figure 1a with Figure 1b is a block diagram sequentially showing the overall steps according to the first embodiment of the present invention, figure 2 The contact wire dynamic pull-out value detection device 1 according to the first embodiment of the present invention is shown. refer to figure 2 , the contact line dynamic pullout value detection device 1 includes a training unit 10 , a detection unit 30 and a contact intersection calculation unit 50 . The dynamic pull-out value detecting device 1 of the contact wire can compare with the brightness of the reference image to detect the dynamic pull-out value of the pantograph 70 and the contact wire 90 of the input image. The training unit 10 can classify similar images according to different brightness conditions to obtain a plurality of reference images, and obtain an optimal feature vector 101 . The training unit 10 compares the feature vector generated from the selected reference image with the feature vector...

no. 2 example

[0070] Figure 11 is a configuration diagram of a pantograph vibration detection device for an electric railway vehicle according to a second embodiment of the present invention, Figure 12 is a diagram for explaining a method of detecting a pantograph for each image frame according to a second embodiment of the present invention, Figure 13 is a diagram for explaining a method of measuring an angle between a horizontal line and a slide plate in a detected pantograph according to a second embodiment of the present invention, Figure 14 A diagram for explaining a method of calculating a vibration frequency of a pantograph based on an angle according to a second embodiment of the present invention, Figure 15a with Figure 15b is a diagram for explaining a method of calculating the vibration intensity of a pantograph based on the magnitude of an angle according to the second embodiment of the present invention.

[0071] refer to Figure 11 , the pantograph vibration detectio...

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Abstract

A pantograph-based vibration information detection method for an electric railway vehicle according to an embodiment of the present invention comprises the steps of: determining a pantograph template; comparing the pantograph template with an input image obtained using a camera, and detecting a pantograph; and detecting vibration information of the pantograph based on changes in the position of the pantograph that is detected by comparing the pantograph template with each frame of the input image.

Description

technical field [0001] The present invention relates to a method and a device for detecting vibration information of an electric railway vehicle based on a pantograph. Background technique [0002] Generally, the pantograph is the core equipment of the electric railway vehicle, which is in contact with the contact wire to supply electric energy to the vehicle. The pantograph is in mechanical contact with the contact wire that supplies electric energy during driving, thus causing wear and vibration, and an arc discharge phenomenon in which electric energy is discharged when it is not in contact. In particular, abnormal vibration is caused by various reasons such as pantograph abnormality or overspeed, line abnormality, etc., resulting in non-contact of pantograph and contact wire, thereby generating arc discharge phenomenon. Furthermore, abnormal vibrations can fatigue the contact wires, thereby causing fatigue of components associated with the contact lines, resulting in da...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H9/00G01B21/00G01B11/00B60M1/28G06T7/73G06T7/60
CPCB60M1/28G01B11/00G01B21/00G01H9/00G06T7/60G06T7/74G06T2207/10016
Inventor 朴暎李基源赵容铉权三荣朴哲民
Owner KOREA RAILROAD RES INST