Catenary geometric parameter detection method and system

A technology of geometric parameters and detection methods, applied to measuring devices, instruments, optical devices, etc., can solve the problems of scattered measurement points, incomplete detection, and low detection efficiency, and achieve fast operation speed, easy maintenance, and simple calculation methods Effect

Inactive Publication Date: 2018-01-09
CENTURAY TECH CO LTD
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Problems solved by technology

This method of manual fixed-point measurement generally has the problems of sc

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  • Catenary geometric parameter detection method and system
  • Catenary geometric parameter detection method and system
  • Catenary geometric parameter detection method and system

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[0058] In order to better show the technical solution of the present invention, the present invention will be further described with reference to the accompanying drawings.

[0059] In order to ensure the safety of railway traffic, multiple parameters of the railway catenary need to be tested from time to time, such as the pull-out value and conduction height of the contact wire. If the pull-out value is too small, it will not achieve the uniform wear of the skateboard and extend the life of the pantograph. Purpose: If the pull-out value is too large, it is easy to cause bow scraping or bow drilling accidents; the lead height can provide analysis data for studying the quality of the contact suspension, the performance of the pantograph and the current receiving state. The existing detection methods for the parameters such as the lead height, pull-out value and abrasion of the railway catenary generally use manual hand-held detection equipment for fixed-point detection. The problem...

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Abstract

The invention discloses a catenary geometric parameter detection method and system, and relates to the technical field of rail transit detection. The method is based on a hand trolley on a rail, and comprises the steps of based on a light source arranged on the trolley and first and second cameras located respectively at two sides of the light source, enabling optical axes of the first and secondcameras to be coplanar with the light source to constitute a light curtain target covering an extreme position area of a contact line; randomly shooting pictures of the contact line in the light curtain target by using the first and second cameras; obtaining the position of the contact line based on the obtained pictures of the contact line and calculating position information of a catenary according to a trigonometric function formula, the position information including the height of the contact line and horizontal distances to the first and second cameras; and obtaining the height of conductor and a pull-out value of the contact line according to the calculated position information of the contact line. The comprehensiveness and efficiency of geometric parameter detection of the contact line are improved.

Description

technical field [0001] The invention relates to the technical field of rail transit detection, more specifically, it relates to a method and system for detecting geometric parameters of catenary. Background technique [0002] The catenary is a special form of transmission line erected along the railway line to supply power to the electric locomotive. The catenary is responsible for the important task of directly transmitting the electric energy obtained from the traction substation to the electric locomotive. Therefore, the quality and work of the catenary The state will directly affect the transportation capacity of the electrified railway. As the speed of the train increases, the requirements for the contact suspension are also getting higher and higher. [0003] At present, when testing the railway catenary, the measurement of conventional geometric parameters such as contact line height and pull-out value is mostly carried out by manual hand-held testing equipment for f...

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Application Information

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IPC IPC(8): G01B11/02
Inventor 朱挺金良赞薛亚栋王山山刘科杰
Owner CENTURAY TECH CO LTD
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