Track plate deformation monitoring device and method

By setting up optical cables on the side of the ballless track plate and using distributed fiber sensing technology to monitor the vertical displacement of the track plate, the problem of difficulty in monitoring long-distance deformation in traditional technologies is solved, high-precision and low-cost track plate deformation monitoring is achieved, and the safety of railway operations is enhanced.

CN110779458BActive Publication Date: 2025-02-28CR TECHCAL DEV CORP +3
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Patent Information

Application Number
CN201911218490.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-12-03
Publication Date
2025-02-28
Estimated Expiration
2039-12-03

AI Technical Summary

Technical Problem

The prior art is difficult to effectively monitor the long-distance deformation of ball-free track plates, and traditional sensors require on-site power supply, which limits the monitoring range and flexibility.

Method used

Using distributed fiber optic sensing technology, by setting up optical cables on the side of the track plate, the track plate is divided into vertical displacement measurement zones and transition zones, and the fiber signals of the vertical displacement measurement zone and transition zone are used for real-time monitoring and temperature compensation, so as to achieve accurate detection of the vertical displacement of the track plate.

Benefits of technology

Real-time monitoring of long-distance deformation of ballless track plates is realized, measurement accuracy and coverage are improved, equipment layout and power supply needs are reduced, and railway operations are enhanced.

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Abstract

The present invention discloses a track plate deformation monitoring device and method, the monitoring device comprises an optical cable, a fastening device and a detection host; the optical cable is connected to the detection host, the fastening device divides the track plate into a vertical displacement measurement area and a transition area; the optical cable is continuously arranged on the track plate, the optical cable comprises a vertical displacement measurement section and a transition section corresponding to the vertical displacement measurement area and the transition area respectively; the vertical displacement measurement section is in a pre-tensioned state, and the transition section is in a free state; the detection host obtains the optical fiber signal of the vertical displacement measurement section in real time, and performs temperature compensation in combination with the optical fiber signal of the transition section, calculates and obtains the vertical displacement of the track plate relative to the base plate or the supporting layer, and performs an alarm and positioning when the displacement of the track plate exceeds the limit according to the preset alarm threshold. The present invention performs temperature compensation on the vertical displacement measurement section through the measurement result of the transition section, thereby monitoring the vertical displacement of the track plate in real time.
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Citation Information

Patent Citations

  • System for distributed monitoring of upwarp of track board and monitoring method thereof

    CN108759702A

  • Track plate deformation monitoring device

    CN210625586U