CN108109319A - It is a kind of by distributed optical fiber temperature measurement data integration in the method for tunnel comprehensive monitoring system - Google Patents
It is a kind of by distributed optical fiber temperature measurement data integration in the method for tunnel comprehensive monitoring system Download PDFInfo
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- CN108109319A CN108109319A CN201711311707.4A CN201711311707A CN108109319A CN 108109319 A CN108109319 A CN 108109319A CN 201711311707 A CN201711311707 A CN 201711311707A CN 108109319 A CN108109319 A CN 108109319A
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- tunnel
- temperature
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- optical fiber
- length
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
Abstract
The invention discloses it is a kind of by distributed optical fiber temperature measurement data integration in the method for tunnel comprehensive monitoring system, tunnel field conduct distribution type fiber-optic temperature sensing fire alarm system, determine fiber lengths and the correspondence of position in tunnel with 50 meters of pile beacons in Tunnel, and be that radius delimit data screening scope progress subregion using the fiber lengths as the center of circle, 28 meters.The temperature data maximum that each subregion is calculated by data filter is used as the effective temperature data in the region, and the effective temperature data after screening are the 1/250 of initial data.Alarm and disconnected fibre alarm decision are risen using valid data as according to progress high temperature alarm, temperature.Effective temperature data and warning message are docked to by interface in tunnel comprehensive monitoring system.This method not temperature measurement accuracy of loss distribution formula temperature detected by optical fiber fire alarm system and response time do not influence the stability of tunnel comprehensive monitoring system, realize temperature detected by optical fiber system and other system interlinks and big data analysis in comprehensive monitoring system.
Description
Technical field
The invention belongs to Fiber Optic Pyrometer fields, specifically, disclose a kind of by distributed optical fiber temperature measurement data set
Into in the method for tunnel comprehensive monitoring system.
Background technology
The characteristics of continuous temperature measurement of distributed optical fiber temperature measurement data technique also determine temperature measurement data amount it is quite huge and
It is very high for the data safety class requirement of fire monitoring.Harsh safe class requirement and huge monitoring data amount cause point
It is unsolved problem always that cloth optical fiber temperature measurement system, which can not be integrated in comprehensive monitoring system,.In the prior art, it is distributed
Optical fiber temperature measurement system can only individually occupy a computer server independent operating all the time, and huge temperature measurement data can only be with
The form displaying of curve, monitoring personnel can only understand the variation tendency of temperature, if it is desired to understanding temperature value, also need to carry out further
Check operation, all make troubles to the work of field personnel, fire protection linkage control, big data analysis etc..
The content of the invention
The present invention seeks to propose it is a kind of by distributed optical fiber temperature measurement data integration in the method for tunnel comprehensive monitoring system.
It is a kind of by distributed optical fiber temperature measurement data integration in the method for tunnel comprehensive monitoring system,
Implement distribution type fiber-optic temperature sensing fire alarm system, including thermometric host and temperature sensing optical fiber two parts, wherein：
Thermometric chiller priority is arranged in the tunnel management station in the range of tunnel portal 1km or is arranged on distance
In tunnel power distribution station in the range of tunnel portal 1km, temperature measurement data passes through signal transmission optical cable remote transmission to tunnel management station；
The hole that temperature sensing optical fiber is arranged on to tunnel is pushed up, the secondary hole wall perimeter+hole to thermometric of optical fiber overall length=length of tunnel+half
Host distance+location position length+tail optical fiber length+200m redundancies；Or temperature sensing optical fiber is arranged on to the cable duct of tunnel both sides
It is interior, the distance+location position length+tail optical fiber length+300m redundancies at optical fiber overall length=length of tunnel+hole to thermometric host；
Wherein, location position length such as Fig. 1 is the fiber lengths of the location position that is useful in tunnel, and r is demarcating circle
Radius, r=0.05m, above-mentioned formula all length unit are rice；
Using hole pile No. as starting point during location position, temperature sensing optical fiber is determined according to 50 meters of pile beacons in tunnel, at each pile No.
Optical fiber is coiled into the circle two weeks that radius is 0.05m, is placed in insulating box of the constant temperature scope higher than 50 DEG C and less than 80 DEG C, record stake
Number with tunnel inner fiber length { L1iCorrespondence；
Data processing such as Fig. 1, respectively with the corresponding fiber lengths sequence { L1 of 50 meters of stakesiIt is the center of circle, 28 meters of radius delimited
Data screening circumference, further obtain the fiber lengths sequence at valid data screening endpoints of ranges corresponding with pile No.
{L2i}；
Calculate the fiber lengths { L2 at data screening endpoints of rangesiCorresponding temperature data index：
Temperature maximum in two-end-point temperature data index range is screened by data filter and is used as target data progress
Storage and display；
High temperature alarm threshold value is set, if acquisition target data is more than high temperature alarm threshold value, recording exceptional point, if next
Target data is still more than high temperature alarm threshold value at same position, then sends sound-light alarm；
Setting temperature rise alarm threshold value, obtain twice target data difference be more than temperature rise alarm threshold value, recording exceptional point, if
Target data difference at measurement next time same position is still more than temperature and rises alarm threshold value, sends sound-light alarm；
The disconnected fine alarm threshold value of setting, sound-light alarm is sent when optical fiber overall length is less than disconnected fine alarm threshold value.
Effective temperature data and warning message are docked to tunnel comprehensive monitoring system by interface.
Method provided by the invention utilizes on the premise of not loss distribution formula optical fiber temperature-measurement precision and alarm time
Intelligent data analysis method is effectively handled the temperature measurement data of acquisition, and data volume that treated is the 1/ of original data volume
250, it disclosure satisfy that on comprehensive monitoring system the requirement of display and thermometric alarm, and treated that data volume is entirely capable of
It is enough to be shown in digital form on computer page.
Description of the drawings
Fig. 1 is this temperature sensing optical fiber system operating diagram.
Reference numeral：
The stake of 50 meters of 1- tunnels, 0.05 meter of 2- radiuses are justified around the location position optical fiber of two circles, the data screening of 28 meters of 3- diameters
Week, 4- data screenings scope, 5- temperature-measuring optical fibers.
Specific embodiment
For those skilled in the art is made to more fully understand technical scheme, the present invention is carried below in conjunction with the accompanying drawings
Method of the distributed optical fiber temperature measurement data integration in tunnel comprehensive monitoring system is described in detail a kind of of confession.
The invention discloses it is a kind of by distributed optical fiber temperature measurement data integration in the method for tunnel comprehensive monitoring system, tunnel
Field conduct distribution type fiber-optic temperature sensing fire alarm system determines fiber lengths and position in tunnel with 50 meters of pile beacons in Tunnel
Correspondence, and be that radius delimit data screening scope progress subregion using the fiber lengths as the center of circle, 28 meters.Pass through data screening
Device calculates effective temperature data of the temperature data maximum of each subregion as the region, and the effective temperature data after screening are original
The 1/250 of beginning data.Alarm and disconnected fibre alarm decision are risen using valid data as according to progress high temperature alarm, temperature.By effective temperature
Data and warning message are docked to by interface in tunnel comprehensive monitoring system.This method not loss distribution formula temperature detected by optical fiber fire
The temperature measurement accuracy of alarm system and response time do not influence the stability of tunnel comprehensive monitoring system, realize temperature detected by optical fiber system
With other system interlinks and big data analysis in comprehensive monitoring system.
(1) distribution type fiber-optic temperature sensing fire alarm system composition and arrangement：
Distribution type fiber-optic temperature sensing fire alarm system is mainly made of thermometric host and temperature sensing optical fiber two parts.Thermometric host
It is arranged in the tunnel management station in the range of tunnel portal 1km, if there is no tunneltron in the range of tunnel portal 1km
Reason station, thermometric host are arranged in tunnel power distribution station in the range, then are remotely passed temperature measurement data by signal transmission optical cable
It is defeated to arrive tunnel management station；Temperature sensing optical fiber is arranged in tunnel, can be arranged in the cable duct of tunnel both sides, can also be arranged in
Tunnel top, depending on the temperature sensing optical fiber layout scheme that the concrete condition selection at scene is suitable.
If temperature sensing optical fiber is arranged in the hole top in tunnel, optical fiber overall length=length of tunnel+half arrives at secondary hole wall perimeter+hole
Thermometric host distance+location position length+tail optical fiber length+200m (redundancy).If temperature sensing optical fiber is arranged in the electricity of tunnel both sides
Cable ditch, then the distance at optical fiber overall length=length of tunnel+hole to thermometric host+location position length+tail optical fiber length+300m is (superfluous
It is remaining).
Wherein r=0.05m；
Redundant length be for temperature sensing optical fiber protruding end shield and temperature sensing optical fiber laying construction during along bending leave
Surplus.Temperature sensing optical fiber is arranged in the cable duct of tunnel both sides, and cable duct is more compared with hole top line road, with a varied topography, therefore compared with hole
Top arrangement stays the redundancy of 100m more.
(2) using hole pile No. K3+000 as starting point during location position, temperature sensing optical fiber is determined according to 50 meters of pile beacons in tunnel, every
Optical fiber at a pile No. is coiled into the circle two weeks of radius 0.05m, is put into insulating box, temperature is higher than 50 DEG C, less than 80 DEG C, records tunnel
Inner fiber length sequences { L1iAnd pile No. correspondence such as form 1.
Form 1
| Sequence number | Pile No. | Fiber lengths { L1i} |
| 1 | K3+000 | 200 |
| 2 | K3+050 | 253 |
| 3 | K3+100 | 307 |
| 4 | K3+150 | 359 |
| 5 | K3+200 | 410 |
| 6 | K3+250 | 463 |
| 7 | K3+300 | 511 |
(3) data processing such as Fig. 1, respectively with the corresponding fiber lengths sequence { L1 of 50 meters of stakesiIt is the center of circle, 28 meters of radius is drawn
Determine data screening circumference, further obtain the fiber lengths sequence at valid data screening endpoints of ranges corresponding with pile No.
{L2iSuch as form 2.
Form 2
(4) index of the corresponding temperature data of fiber lengths is calculated：
Further obtain pile No. and temperature data index correspondence such as form 3.
Form 3
(5) temperature maximum in temperature data index range is calculated, such as form 4.
Form 4
(6) high temperature alarm threshold value is set：
If the temperature calculated is more than high temperature alarm threshold value, recording exceptional temperature spot, if the temperature of acquisition next time is still
It is more than high temperature alarm threshold value at same position, then sends high temperature sound-light alarm.
(7) setting temperature rises alarm threshold value：
Temperature difference is calculated twice and is more than temperature liter alarm threshold value, recording exceptional temperature spot, if the temperature of acquisition next time is still
It is more than temperature at same position and rises alarm threshold value, sends sound-light alarm.
(8) the disconnected fine alarm threshold value of setting：
Optical fiber overall length is less than disconnected fine alarm threshold value, sends sound-light alarm.
Effective temperature data and warning message are docked to tunnel comprehensive monitoring system by interface.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, the essence of the present invention is not being departed from
In the case of refreshing and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (1)
1. it is a kind of by distributed optical fiber temperature measurement data integration in the method for tunnel comprehensive monitoring system, it is characterised in that：
Implement distribution type fiber-optic temperature sensing fire alarm system, including thermometric host and temperature sensing optical fiber two parts, wherein：
Thermometric chiller priority is arranged in the tunnel management station in the range of tunnel portal 1km or is arranged on apart from tunnel
In tunnel power distribution station in the range of the 1km of hole, temperature measurement data passes through signal transmission optical cable remote transmission to tunnel management station；
The hole that temperature sensing optical fiber is arranged on to tunnel is pushed up, the secondary hole wall perimeter+hole to thermometric host of optical fiber overall length=length of tunnel+half
Distance+location position length+tail optical fiber length+200m redundancies；Or temperature sensing optical fiber is arranged in the cable duct of tunnel both sides, light
Fine overall length=length of tunnel+hole is to distance+location position length+tail optical fiber length+300m redundancies of thermometric host；
Wherein, location position length is that the fiber lengths of location position are useful in tunnel, and r is the radius of demarcating circle, r=
0.05m, above-mentioned formula all length unit are rice；
Using hole pile No. as starting point during location position, temperature sensing optical fiber is determined according to 50 meters of pile beacons in tunnel, by light at each pile No.
Fibre is coiled into the circle two weeks that radius is 0.05m, is placed in insulating box of the constant temperature scope higher than 50 DEG C and less than 80 DEG C, record pile No. and
Tunnel inner fiber length { L1iCorrespondence；
Respectively with the corresponding fiber lengths sequence { L1 of 50 meters of stakesiFor the center of circle, 28 meters of delimitation data screening circumference of radius, obtain with
Fiber lengths sequence { L2 at the corresponding valid data screening endpoints of ranges of pile No.i}；
Calculate the fiber lengths { L2 at data screening endpoints of rangesiCorresponding temperature data index：
It is used as target data by temperature maximum in data filter screening two-end-point temperature data index range to be stored
And display；
High temperature alarm threshold value is set, if acquisition target data is more than high temperature alarm threshold value, recording exceptional point, if next time is identical
Target data is still more than high temperature alarm threshold value at position, then sends sound-light alarm；
Setting temperature rises alarm threshold value, and the target data difference obtained twice is more than temperature and rises alarm threshold value, recording exceptional point, if next
It measures the target data difference at same position and still rises alarm threshold value more than temperature, send sound-light alarm；
The disconnected fine alarm threshold value of setting, sound-light alarm is sent when optical fiber overall length is less than disconnected fine alarm threshold value；
Effective temperature data and warning message are docked to tunnel comprehensive monitoring system by interface.
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Cited By (5)
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| CN110907062A (en) * | 2019-12-11 | 2020-03-24 | 山东省科学院激光研究所 | Method and system for improving sampling rate of distributed temperature measurement system |
| CN110954143A (en) * | 2018-09-27 | 2020-04-03 | 冲电气工业株式会社 | Optical fiber sensor device and optical fiber sensor system |
| CN112781710A (en) * | 2019-11-07 | 2021-05-11 | 无锡迈能科技有限公司 | Method for detecting high-frequency abnormal sound of carrier roller of belt conveyor in distributed mode |
| CN114360190A (en) * | 2021-12-31 | 2022-04-15 | 上海震旦施密茨消防装备有限公司 | Fire alarm system for underground cable and working method thereof |
| CN114485906A (en) * | 2022-02-17 | 2022-05-13 | 山东飞博赛斯光电科技有限公司 | Position positioning system and method suitable for distributed optical fiber sensing event |
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| CN110954143A (en) * | 2018-09-27 | 2020-04-03 | 冲电气工业株式会社 | Optical fiber sensor device and optical fiber sensor system |
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| CN114360190A (en) * | 2021-12-31 | 2022-04-15 | 上海震旦施密茨消防装备有限公司 | Fire alarm system for underground cable and working method thereof |
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| CN114485906A (en) * | 2022-02-17 | 2022-05-13 | 山东飞博赛斯光电科技有限公司 | Position positioning system and method suitable for distributed optical fiber sensing event |
| CN114485906B (en) * | 2022-02-17 | 2023-10-17 | 山东飞博赛斯光电科技有限公司 | Position positioning system and method suitable for distributed optical fiber sensing event |
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Application publication date: 20180601 |