Detection device for geometric parameters of contact line

A technology of geometric parameters and detection devices, applied to measuring devices, optical devices, instruments, etc., can solve the problems of short service life and achieve the effects of ensuring service life, improving signal-to-noise characteristics, and uniform lighting brightness

Pending Publication Date: 2018-10-26
CHINA ACADEMY OF RAILWAY SCI CORP LTD +2
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  • Abstract
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Problems solved by technology

[0007] In order to solve the problem of short service life of the active lighting source in the existing catenary geometric parameter detection device

Method used

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  • Detection device for geometric parameters of contact line
  • Detection device for geometric parameters of contact line
  • Detection device for geometric parameters of contact line

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Embodiment Construction

[0037] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0038] A catenary geometric parameter detection device, comprising:

[0039] Camera module 1, capable of collecting images of catenary;

[0040] The light source module 2 can provide active lighting for the catenary;

[0041] The synchronization control unit 3 can control the periodic exposure of the camera module 1, can control the periodic illumination of the light source module 2, and can also synchronize the periodic exposure of the camera module 1 and the periodic illumination of the light source module 2;

[0042] The sensor 4 can measure the distance of the catenary geometric parameter detection device, and send the distance information of the catenary geometric parameter detection dev...

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Abstract

The invention discloses a detection device for geometric parameters of a contact line. The detection device includes a camera module (1), a light source module (2), a synchronous control unit (3) anda sensor (4). The camera module measures the geometric parameters of the contact line by employing a stereoscopic vision mode, each of linear array cameras is arranged at different positions on the same plane, and the spatial range of contact wires is separately covered with viewing fields of each of linear array cameras. A work mode of the light source module is synchronous strobe, the camera module and the light source module are synchronously triggered by a same pulse signal, and synchronous exposure of a camera and synchronous stroboscopic illumination of the light source are achieved. Thecamera module and the light source module are arranged in a line shape, and beam strongest sections formed by the LED light source module are in a same plane with linear array camera imaging chips. Advantages of the detection device are that the geometric parameters of the contact line are measured by employing the stereoscopic vision mode are measured by stereoscopic vision, and the detection precision is high; and the LED synchronous stroboscopic illumination mode is adopted, the brightness of fill-in light is high and uniform, the image quality is significantly improved, and power consumption of a system is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of railway catenary measurement, in particular to a catenary geometric parameter detection device. Background technique [0002] The catenary is an important device in the traction power supply system of electrified railways and rail transit. The electric locomotive is in sliding contact with the contact line through the pantograph and obtains electric energy. In order to ensure the safe operation of electrified railways and rail transit, as well as good pantograph-catenary contact and reliable current intake, in addition to meeting certain normative requirements in catenary design, construction and operation, it is also necessary to regularly test the catenary in order to timely Find and eliminate hidden dangers. The catenary geometric parameters such as pull-out value and guide height are important items for catenary testing, and regular testing is required to confirm the technical status of the catenary...

Claims

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Application Information

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IPC IPC(8): G01B11/00G01B11/06
CPCG01B11/00G01B11/0608
Inventor 周威张文轩
Owner CHINA ACADEMY OF RAILWAY SCI CORP LTD
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