CN208036293U - Rail of subway real-time state monitoring device - Google Patents
Rail of subway real-time state monitoring device Download PDFInfo
- Publication number
- CN208036293U CN208036293U CN201820166173.4U CN201820166173U CN208036293U CN 208036293 U CN208036293 U CN 208036293U CN 201820166173 U CN201820166173 U CN 201820166173U CN 208036293 U CN208036293 U CN 208036293U
- Authority
- CN
- China
- Prior art keywords
- input
- rail
- terminal
- output
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
Include the sensor fibre and narrow linewidth laser, light pulse modulator, Polarization Controller, circulator, impulse generator, wdm system, Brillouin Scattering Distributed Optical Fiber Sensor, the intelligent terminal for data processing that laying is closely pasted along railway line the utility model discloses a kind of rail of subway real-time state monitoring device；Laying is closely pasted along railway line using many reference amounts distributed fiberoptic sensor combination sensor fibre, to the characteristic parameters distributed capture such as subway rail temperature, strain and vibration, it realizes monitoring safety status and the early warning such as rail temperature, stress, achievees the purpose that track operational safety status assessment.
Description
Technical field
The utility model is related to rail of subway maintained equipment field, especially a kind of rail of subway real-time state monitoring dress
It sets.
Background technology
In current social life, subway has become the essential vehicles in life, especially in population
Numerous large size cities, the development of subway directly influence the further construction in the city.Per axis weight in the case that subway is fully loaded
It measures the general rail 20 tons, often located every year and has 1,500,000 solid iron tyre stone roller past, causing hurt to be rail of subway must
Right, therefore, we want the maintenance work of reinforcing rail, could extend the service life of rail in this way, while also can guarantee people
Personal safety, pay attention to the quality of rail, periodically rail checked, if it find that problem will be pocessed in time, this
Sample just can guarantee the normal operation of subway.
In the work of subway, rail examination is very important, this work is to find hurt and track hurt development
The important means of situation, existing monitoring means (are mainly mainly ultrasonic wave hand using having visual inspection, instrument flaw detection at present
Section, might have eddy current inspection when new rail dispatch from the factory), (speed is fast, accuracy rate is high, is still ultrasonic wave for large size inspection car inspection
Means) etc..
1, it visually inspects：
Visually appearance is checked using manual inspection, carrying out judging rail state.The method disadvantage is artificial detection
With larger subjectivity, the integrality and accuracy of testing result are difficult to ensure veteran testing staff.
2, instrument defect detecting test
It is mainly segmented placement fixed equipment using window phase to detect rail progress rail stress with fastening-down temperature of rail, every section
Place an instrument, every section is posted the various sensor devices of installation and instrument in rail on both sides, when train by when detect the section
Rail status information, in train operation, can be believed by moment forceful electric power though the method can detect the information of this section of rail
Number and strong electromagnetic effect of signals,
3, large-scale inspection car inspection
The complete detection of rail is mainly carried out using large-sized multifunction carrying out flaw detection vehicle using window phase, it is as a result most accurate
Really, but it is unsatisfactory for quick, accurate, real-time the requirement of rail real time temperature, stress mornitoring.
Utility model content
To solve problems of the prior art, the utility model provides a kind of rail of subway real-time state monitoring dress
It sets.
The technical solution adopted in the utility model is：
A kind of rail of subway real-time state monitoring device includes that the sensor fibre of laying and narrow is closely pasted along railway line
Line width laser, light pulse modulator, Polarization Controller, circulator, impulse generator, WDM (Wavelength Division
Multiplexing, wavelength-division multiplex) system, Brillouin Scattering Distributed Optical Fiber Sensor, the intelligent terminal for data processing；
The first input end of the first output end connection light pulse modulator of the narrow linewidth laser, the of the narrow linewidth laser
Two output ends connect the first input end of Brillouin Scattering Distributed Optical Fiber Sensor, and the output end of the light pulse modulator connects
Connect the input terminal of Polarization Controller, the input terminal of the output end connection circulator of the Polarization Controller, the circulator it is defeated
Enter the input/output terminal of output end connection sensor fibre, the input terminal of the output end connection wdm system of the circulator is described
Second input terminal of the first output end connection Brillouin Scattering Distributed Optical Fiber Sensor of wdm system, the intelligent terminal
First input/output terminal connects the input/output terminal of impulse generator, and the second input/output terminal of the intelligent terminal connects in cloth
The input/output terminal of deep scatter distributions formula fibre optical sensor, the of the output end connection light pulse modulator of the impulse generator
Two input terminals.
Preferably, further include EDFA (Erbium-doped Optical Fiber Amplifier, Erbium-doped fiber amplifier
Device), the EDFA is set between light pulse modulator and Polarization Controller, and the output end of the light pulse modulator connects EDFA
Input terminal, the EDFA output end connection Polarization Controller input terminal.
Preferably, further include Raman scattering distributed fiberoptic sensor, the second output terminal connection Raman of the wdm system
The third input/output terminal of the input terminal of scatter distributions formula fibre optical sensor, the intelligent terminal connects Raman scattering distribution light
The input/output terminal of fiber sensor.
High-precision distributive fiber optic strain sensing according to optical fiber Brillouin scattering spectrum frequency shift amount size and fibre strain at
The principle of linear relationship obtains the Brillouin spectrum number of distribution by the relevant detection of light, the relevant detection of microwave, microwave swept frequency
According to, and handled through Brillouin's spectral pattern generation, Brillouin shift amount size is obtained, realizes that distributed strain measures.Distribution type fiber-optic
Temperature sensing then according to Raman scattering light intensity and the relevant principle of temperature, is detected by the anti-Stokes light intensity of Raman scattering,
And monochromatic light road demodulating algorithm and real time temperature calibration algorithm are combined, realize distributed optical fiber temperature measuring.Profile fiber vibration passes
Sense is then by Rayleigh Scattering Spectra phase perturbation state analysis, realizing that distributed vibrational perturbation measures.To realize many reference amounts
Long-distance distributed measurement, meet railway track monitoring application scenarios requirement.
Laying is closely pasted along railway line using many reference amounts distributed fiberoptic sensor combination sensor fibre, utilizes distribution
Optical fiber sensing technology collects track strain, temperature, Vibration Condition progress data analysis in real time, establishes vehicle-rail of rail
Road Coupling Dynamic Model, analysis rail temperature, strain realize that rail safety state is real to the affecting laws of track dynamic response
When assessment and alarm.By studying the healthy shape under rail complexity operating parameter, environmental parameter and material property parameter effect
State threshold property is established based on the rail safety State Forecasting Model for lasting monitoring data, realize rail safety life assessment with
Analysis.
The utility model has the beneficial effects that：
1, subway line long range, the temperature of big model and stress on-line real time monitoring are realized；
2, temperature anomaly point position can be judged automatically, and along the uninterrupted automatic measurement of optical fiber, is used especially suitable for big model more
Point measures and the circuit of monitoring rail temperature；
3, optical fiber is pasted on rail, the bending of rising of rail can be detected, with the bending of rail, optical fiber receives drawing
Stress generates strain, its internal optical signal transmission is caused to change, and by demodulating change in optical signal, available rail rises song
Situation；
4, comprehensive track strain, temperature, vibration distribution, establish the car track coupling dynamics model of rail, point
Rail temperature, strain are analysed to the affecting laws of track dynamic response, realizes the assessment in real time of rail safety state and alarm；
5, it can be established based on the rail safety State Forecasting Model for lasting monitoring data by data acquisition, realize track peace
Life-cycle evaluates and analysis.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Reference numeral：1- narrow linewidth lasers, 2- light pulse modulators, 3- Polarization Controllers, 4- circulators, 5- sense lights
Fibre, 6- impulse generators, 7-WDM systems, 8- Brillouin Scattering Distributed Optical Fiber Sensors, 9- intelligent terminals, 10-EDFA, 11-
Raman scattering distributed fiberoptic sensor.
Specific implementation mode
The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
Embodiment
As shown in Figure 1, a kind of rail of subway real-time state monitoring device, includes the sensing for closely pasting laying along railway line
Optical fiber 5 and narrow linewidth laser 1, light pulse modulator 2, Polarization Controller 3, circulator 4, impulse generator 6, wdm system
7, Brillouin Scattering Distributed Optical Fiber Sensor 8, the intelligent terminal 9 for data processing；The first of the narrow linewidth laser 1
Output end connects the first input end of light pulse modulator 2, and the second output terminal connection Brillouin of the narrow linewidth laser 1 dissipates
The first input end of distributed fiberoptic sensor 8 is penetrated, the output end of the light pulse modulator 2 connects the defeated of Polarization Controller 3
Enter end, the input terminal of the output end connection circulator 4 of the Polarization Controller 3, the input/output terminal connection of the circulator 4 passes
Photosensitive fine 5 input/output terminal, the input terminal of the output end connection wdm system 7 of the circulator 4, the of the wdm system 7
One output end connects the second input terminal of Brillouin Scattering Distributed Optical Fiber Sensor 8, and the first input of the intelligent terminal 9 is defeated
Outlet connects the input/output terminal of impulse generator 6, the second input/output terminal connection Brillouin scattering point of the intelligent terminal 9
The input/output terminal of cloth fibre optical sensor 8, the second of the output end connection light pulse modulator 2 of the impulse generator 6 are defeated
Enter end；The intelligent terminal 9 can be microcontroller, computer or server etc..
Further include EDFA10 in one of the embodiments, the EDFA10 is set to light pulse modulator 2 and Polarization Control
Between device 3, the input terminal of the output end connection EDFA10 of the light pulse modulator 2, the output end connection of the EDFA10 is partially
Shake the input terminal of controller 3.
In another embodiment, further include Raman scattering distributed fiberoptic sensor 11, the of the wdm system 7
Two output ends connect the input terminal of Raman scattering distributed fiberoptic sensor 11, the third input/output terminal of the intelligent terminal 9
Connect the input/output terminal of Raman scattering distributed fiberoptic sensor 11.
Specific embodiment of the present utility model above described embodiment only expresses, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.
Claims (3)
1. a kind of rail of subway real-time state monitoring device, which is characterized in that include the sensing for closely pasting laying along railway line
Optical fiber and narrow linewidth laser, light pulse modulator, Polarization Controller, circulator, impulse generator, wdm system, Brillouin
Scatter distributions formula fibre optical sensor, the intelligent terminal for data processing；First output end of the narrow linewidth laser connects
The second output terminal of the first input end of light pulse modulator, the narrow linewidth laser connects Brillouin scattering distribution type fiber-optic
The first input end of sensor, the input terminal of the output end connection Polarization Controller of the light pulse modulator, the polarization control
The input terminal of the output end connection circulator of device processed, the input and output of the input/output terminal connection sensor fibre of the circulator
The first output end connection Brillouin at end, the input terminal of the output end connection wdm system of the circulator, the wdm system dissipates
The second input terminal of distributed fiberoptic sensor is penetrated, the first input/output terminal of the intelligent terminal connects the defeated of impulse generator
Enter output end, the input and output of the second input/output terminal connection Brillouin Scattering Distributed Optical Fiber Sensor of the intelligent terminal
End, the second input terminal of the output end connection light pulse modulator of the impulse generator.
2. rail of subway real-time state monitoring device according to claim 1, which is characterized in that further include EDFA, it is described
EDFA is set between light pulse modulator and Polarization Controller, the input of the output end connection EDFA of the light pulse modulator
End, the input terminal of the output end connection Polarization Controller of the EDFA.
3. rail of subway real-time state monitoring device according to claim 1 or 2, which is characterized in that further include that Raman dissipates
Penetrate distributed fiberoptic sensor, the input of the second output terminal connection Raman scattering distributed fiberoptic sensor of the wdm system
End, the input/output terminal of the third input/output terminal connection Raman scattering distributed fiberoptic sensor of the intelligent terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820166173.4U CN208036293U (en) | 2018-01-31 | 2018-01-31 | Rail of subway real-time state monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820166173.4U CN208036293U (en) | 2018-01-31 | 2018-01-31 | Rail of subway real-time state monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208036293U true CN208036293U (en) | 2018-11-02 |
Family
ID=63955122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820166173.4U Expired - Fee Related CN208036293U (en) | 2018-01-31 | 2018-01-31 | Rail of subway real-time state monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208036293U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733437A (en) * | 2019-01-28 | 2019-05-10 | 电子科技大学 | A kind of Intelligent Passive rail structure body health monitoring systems |
| CN111044170A (en) * | 2019-12-11 | 2020-04-21 | 华北水利水电大学 | High-speed rail temperature detection method based on optical fiber distributed monitoring |
-
2018
- 2018-01-31 CN CN201820166173.4U patent/CN208036293U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733437A (en) * | 2019-01-28 | 2019-05-10 | 电子科技大学 | A kind of Intelligent Passive rail structure body health monitoring systems |
| CN111044170A (en) * | 2019-12-11 | 2020-04-21 | 华北水利水电大学 | High-speed rail temperature detection method based on optical fiber distributed monitoring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wei et al. | A fiber Bragg grating sensor system for train axle counting | |
| Minardo et al. | Bridge monitoring using Brillouin fiber-optic sensors | |
| CN101592475B (en) | Fully distributed fiber Rayleigh and Raman scattering photon strain and temperature sensor | |
| US10641622B2 (en) | Method and system for optical fiber sensing | |
| CN103727968B (en) | The method of measuring tempeature, strain, the vibration while of a kind of | |
| CN109595470B (en) | Distributed pipeline detection method | |
| CN103438982B (en) | Shake monitoring system based on Brillouin distributed optical fiber sensing | |
| CN107817743A (en) | A kind of bridge security online monitoring system | |
| CN208036293U (en) | Rail of subway real-time state monitoring device | |
| CN104458079A (en) | Health monitoring method of distribution type optical fiber sensing pole and tower | |
| Yoon et al. | Real‐Time Distributed Strain Monitoring of a Railway Bridge during Train Passage by Using a Distributed Optical Fiber Sensor Based on Brillouin Optical Correlation Domain Analysis | |
| CN114575927A (en) | Rail transit safety monitoring system and method | |
| CN105371785A (en) | Curvature measurement method | |
| US11920963B2 (en) | Method and system for optical fiber sensing | |
| CN203147289U (en) | Double-Sagnac pipeline safety monitoring system | |
| CN104019835B (en) | Long-distance cable site machinery characteristic test system and method | |
| CN202511922U (en) | Oppc optical cable stress and carrying capacity measuring and calculating system | |
| CN111239842A (en) | Rainwater invasion optical cable monitoring system and method based on distributed optical fiber sensing technology | |
| CN207300447U (en) | Bridge security monitoring device based on optical fiber sensing technology | |
| CN204368189U (en) | Based on the railway foreign body intrusion monitoring system of fiber-optic grating sensor closed loop | |
| KR102197696B1 (en) | Structure health monitoring system using optic fiber-based hybrid nerve network sensor, and method for the same | |
| CN102539113B (en) | A kind of tracing analysis method based on Brillouin optical time domain analysis instrument BOTDA | |
| CN204313997U (en) | A kind of distributing optical fiber sensing pole tower health monitoring device | |
| CN201417140Y (en) | Distributed optical-fiber Rayleigh/Raman-scattering-photon strain/temperature sensor | |
| CN110375791A (en) | Bridge security monitoring method based on optical fiber sensing technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 Termination date: 20220131 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |