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Rail vehicle optical fiber network diagnosis device and method and rail vehicle using the device

A fiber optic network and rail vehicle technology, applied in the field of diagnostic devices, can solve problems such as time-consuming and labor-intensive troubleshooting of optical path faults, troubleshooting of train operating lines and difficulties in after-sales maintenance, and achieve the effect of reducing maintenance costs and assisting maintenance

Active Publication Date: 2016-07-06
CRRC QINGDAO SIFANG CO LTD
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  • Description
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Problems solved by technology

A set of effective train optical fiber network monitoring methods and equipment has not been formed in China, which brings great difficulties to the troubleshooting and after-sales maintenance of train running lines
[0003] Due to the hidden routing of optical fibers, and some faults only occur during operation, this brings great difficulties to the troubleshooting of optical path faults
The current solution is to replace all the fiber optic lines that have problems. This operation is time-consuming and labor-intensive, which will increase the cost of repair and maintenance, but the root cause of the problem cannot be found

Method used

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  • Rail vehicle optical fiber network diagnosis device and method and rail vehicle using the device
  • Rail vehicle optical fiber network diagnosis device and method and rail vehicle using the device
  • Rail vehicle optical fiber network diagnosis device and method and rail vehicle using the device

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0026] Such as figure 1 As shown, rail vehicles such as various EMUs include head cars 9 at both ends and carriages 1 in the middle. A central control device 10 is provided in the head car 9 and a terminal control device 2 is provided in each carriage 1 . The central control device 10 on the head car 9 is respectively connected to the two terminal control devices 2 in the two cars 1 adjacent to the head car 9, and every other car 1 is connected to each other between the terminal control devices 2 of each car 1 in the middle. The central control device 10 and the terminal control device 2 are connected by two optical fibers 8 in opposite directions, and the two terminal control devices 2 are also connected by two optical fibers 8 in opposite directions. From the perspective of the rail vehicle as a whole, the two central The control device 10 an...

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Abstract

The invention relates to a rail vehicle optical fiber network diagnostic device and method and a rail vehicle using the device. The optical fiber network is composed of a central control device, a terminal control device and optical fibers. The diagnostic device includes an optical signal detector, and the optical signal detector includes The OTDR module, the multiplexing filter, and the two internally connected optical fiber input ends of the multiplexing filter are respectively connected to two optical fibers, and the two optical fibers are respectively connected to the central control device and the terminal control device or are respectively connected to two In the terminal control device, the OTDR module is connected to the test port that the multiplexing filter communicates with the two optical fiber input ends. The invention connects the OTDR module to the existing train optical fiber network through the multiplexing filter, detects the optical fiber, collects the status information of the optical fiber in real time, obtains the fault information of the optical fiber network of the rail vehicle, and assists the technicians in the maintenance of the optical fiber network , reducing maintenance costs.

Description

technical field [0001] The invention relates to a diagnosis device and method, in particular to a rail vehicle optical fiber network diagnosis device and method and a rail vehicle using the device. Background technique [0002] Because the optical fiber network has the characteristics of strong anti-electromagnetic interference ability and high signal transmission efficiency, many rail vehicles have adopted the train control network based on optical fiber. However, optical fiber is a confidential device, external physical impact, small bending radius, and contamination of optical connectors may affect the quality of optical fiber signal transmission. The reliability monitoring of optical fiber network access has not been included in the scope of train operation safety monitoring. A set of effective train optical fiber network monitoring methods and equipment has not been formed in China, which brings great difficulties to the troubleshooting and after-sales maintenance of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/075H04B10/071
Inventor 肖石王延翠焦京海
Owner CRRC QINGDAO SIFANG CO LTD
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