Railway retarder large-scale on-line monitoring device and method based on fiber bragg grating

A fiber grating and monitoring device technology, which is applied in the direction of railway vehicle shape measuring devices, railway car body parts, railway auxiliary equipment, etc., can solve the problems of inability to meet the requirements of station detection, low efficiency of deceleration jacks, and inability to accurately judge the state of deceleration jacks and other issues, to achieve low-cost large-scale deployment, improve safety, and reduce labor intensity of workers

Pending Publication Date: 2020-11-10
上海万汇科技有限公司
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Problems solved by technology

However, due to the heavy weight of the online detection equipment, at least two people are usually required to operate it. Although the operating efficiency is greatly improved compared with manual work, it is not enough for thousands of ordinary speed reducers in the station.
In particular, it can only work at the skylight point, and the working time is very limited
[0015] From the above analysis, it can be seen that the effi

Method used

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  • Railway retarder large-scale on-line monitoring device and method based on fiber bragg grating
  • Railway retarder large-scale on-line monitoring device and method based on fiber bragg grating

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[0031] Below with reference to the accompanying drawings, through the description of the embodiments, the specific implementation of the present invention, such as the shape and structure of each component involved, the mutual position and connection relationship between each part, the function and working principle of each part, and the manufacturing process and operation and use methods, etc., are described in further detail to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solutions of the present invention.

[0032] The large-scale online monitoring equipment for railway deceleration roof based on fiber grating includes fiber Bragg grating sensor (FBG sensor), fiber splitter, fiber grating demodulator, server and client.

[0033] The FBG sensor is installed on the ordinary speed reducer. A single FBG sensor has a specific value of the center wavelength, which can convert the change of the force

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Abstract

The invention discloses a railway retarder large-scale on-line monitoring device based on fiber bragg gratings. An FBG sensor is fixed on each monitored retarder, and the FBG sensors are connected with an optical fiber branching device through optical fibers; the optical fiber branching device is connected with a fiber bragg grating demodulator, and the fiber bragg grating demodulator is connectedwith a fiber bragg grating sensor; the fiber bragg grating demodulator is connected with a server through a signal line or a wireless network, and the server stores stress change information of eachmonitored retarder. According to the invention, the all-optical measurement and transmission are adopted, no electronic equipment exists on site, other electronic equipment of a railway is not interfered, the interference of other electronic equipment is avoided, and the insulation protection is not needed. The optical center wavelength value of each single FBG sensor is specific; in the laser band range, the low-cost large-scale deployment can be achieved, the working state of the retarder is monitored in real time, the labor intensity of workers is relieved, and meanwhile, the shunting safety of a railway freight yard is improved.

Description

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Claims

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Application Information

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Owner 上海万汇科技有限公司
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