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A real-time measurement method of contact line lift based on image processing

A real-time measurement and image processing technology, applied in image data processing, image analysis, image enhancement, etc., can solve problems such as equipment transformation, large errors, and difficult data matching, and achieve the effect of saving human resources

Active Publication Date: 2021-02-19
HENAN SPLENDOR SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the measurement of the uplift of the catenary line, it is affected by multiple factors in reality, which increases the difficulty of measurement: (1) The addition of sensors to the catenary system requires the modification of equipment, which is too difficult or the existing equipment is damaged. The working status has additional effects; (2) The sensor measurement on the roof is a mobile non-contact measurement, and the data is difficult to match or has a large error

Method used

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  • A real-time measurement method of contact line lift based on image processing
  • A real-time measurement method of contact line lift based on image processing
  • A real-time measurement method of contact line lift based on image processing

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Embodiment Construction

[0030] The technical solutions of the present invention will be described in further detail below through specific implementation methods.

[0031] Such as figure 1 and figure 2 As shown, a real-time measurement method of contact line lift based on image processing includes the following steps:

[0032] S1, through the camera installed on the pillar, the image of the contact line is photographed and collected; considering that the method of the present invention has requirements for image quality, and in the case of poor ambient light, the processing result will have unpredictable errors, so the acquisition camera is matched Automatic fill-in light equipment, when the brightness of the external environment becomes dark, the automatic fill-in light is turned on. It is ensured that the quality of the collected images is limited to the impact of light changes and does not affect the image processing results. In addition, it should be pointed out that in order to obtain high-p...

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Abstract

The invention provides a real-time measurement method for the uplift of the contact line based on image processing, using algorithms such as gradient change and adaptive binarization in image processing to accurately locate the edge of the contact line, and using statistics to summarize the part of the contact line in the image According to the characteristic law, the boundary width of the contact line is calculated, and then the camera calibration technology is used to find the conversion relationship between the image coordinate system and the world coordinate system, so as to realize the real-time and accurate measurement of the lift of the contact line. This scheme does not need to change the state of the existing catenary equipment, and the accuracy of the measurement results is high.

Description

technical field [0001] The invention relates to a method for measuring the uplift of a contact wire, in particular to a real-time measurement method for the uplift of a contact wire based on image processing. Background technique [0002] The high-speed rail power supply safety detection and monitoring system was born along with the high-speed rail (passenger train) power supply safety and quality. It is a comprehensive and comprehensive detection and monitoring of the high-speed rail traction power supply system. The catenary and power supply equipment ground detection device (6C) is used to monitor the tension, vibration, lift, lead temperature, compensation displacement, power supply equipment insulation status and temperature and other operating state parameters of the catenary to guide the catenary and power supply Equipment maintenance. [0003] The measurement of the catenary lift has important reference significance in the current high-speed rail catenary detection....

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G06T7/13G06T7/62G06T7/80
CPCG01B11/00G06T2207/10004G06T7/13G06T7/62G06T7/80
Inventor 陈召阳刘大庆程传斌潘新华朱林孙光绪
Owner HENAN SPLENDOR SCI & TECH