CN206672305U - Dangerous material goods yard fire locating data collecting system - Google Patents
Dangerous material goods yard fire locating data collecting system Download PDFInfo
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- CN206672305U CN206672305U CN201720199978.4U CN201720199978U CN206672305U CN 206672305 U CN206672305 U CN 206672305U CN 201720199978 U CN201720199978 U CN 201720199978U CN 206672305 U CN206672305 U CN 206672305U
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Abstract
Warehouse goods yard administrative skill field is the utility model is related to, a kind of dangerous material goods yard fire locating data collecting system is disclosed, to aid in the fire monitoring of dangerous material goods yard.The utility model includes：Fiber information collecting part and temperature-measuring optical fiber；The fiber information collecting part includes high-speed pulse light source, photo-coupler, optical splitter and the collecting unit for obtaining stokes light and anti-Stokes light power data respectively with binary channels, the photo-coupler is connected with the temperature-measuring optical fiber, the high-speed pulse light source and the optical splitter respectively, and the optical splitter is connected with the collecting unit；The temperature-measuring optical fiber is the whole piece optical fiber for being sequentially wound in all goods yards, and the both sides in each goods yard are respectively formed with a firing ring so that fire alarm occurs for certain specific side that the utility model can accurately determine corresponding goods yard.
Description
Technical field
It the utility model is related to warehouse goods yard administrative skill field, more particularly to a kind of dangerous material goods yard fire locating data
Acquisition system.
Background technology
With economic continuous development, in order to improve space availability ratio to greatest extent, increasing enterprise's selection makes
Its kinds of goods is deposited with tiered warehouse facility.Tiered warehouse facility is also known as High Level Rack warehouse, automatic access system warehouse etc., and warehouse uses more
Layer shelf, using automated material haulage equipment carry out goods storage Delivery, system architecture present height mechanization,
Automation.
Because goods receiving is more in tiered warehouse facility, the unit area fire load in warehouse is generally higher, and hazardous chemical
The physical characteristics such as the toxicity that has due to it, inflammability, corrosivity, can cause more huge loss after generation accident.And
Fire-fighting mode of the different harmful influences when there is catching fire situation also has different requirements, to ensure to keep the safety in production, for harmful influence
Tiered warehouse facility has higher requirement while freight classification is placed to temperature supervision and high temperature dot positioning.
Current point type temperature measuring type detector is only capable of obtaining the information near sampled point, to realize that overall supervision needs to carry out
Cumbersome control point design of mesh arrangement, separately there is the image-type fire detector designed by for vertical library integral monitoring, but its operation is easy
Disturbed by dust, and only certain hysteresis quality be present by monitoring flame to carry out alarm.
Utility model content
Main purpose of the present utility model is to disclose a kind of dangerous material goods yard fire locating data collecting system, with auxiliary
The fire monitoring of dangerous material goods yard.
To achieve the above object, the utility model discloses a kind of dangerous material goods yard fire locating data collecting system, including：
Fiber information collecting part and temperature-measuring optical fiber；
The fiber information collecting part is included high-speed pulse light source, photo-coupler, optical splitter and obtained respectively with binary channels
Take the collecting unit of stokes light and anti-Stokes light power data, the photo-coupler respectively with the temperature-measuring optical fiber,
The high-speed pulse light source and optical splitter connection, the optical splitter are connected with the collecting unit；
The temperature-measuring optical fiber is sequentially to be wound in the whole piece optical fiber in all goods yards, and the both sides in each goods yard respectively formed with
One firing ring.
Preferably, the length of above-mentioned each firing ring covers at least three sampled point of the fiber information collecting part.
Preferably, above-mentioned temperature-measuring optical fiber uses multimode fibre, and the photo-coupler and first are connected in temperature-measuring optical fiber
Optical fiber between firing ring is correction optical fiber, and the correction optical fiber is connected with thermocouple.
In the utility model, the data output end of collecting unit is connected with computer, so that the computer is based on Raman scattering
Fire monitoring and positioning are carried out to the dangerous material goods yard.Further, the computer is integrated with realizes after temperature measurement data is preserved
The GPRS module of data remote.
In the utility model, using sensor and transport vehicle of the optical fiber as temperature information, measure loop does not include electricity
Signal, product will not turn into disaster hidden-trouble because of anti-riot defect；And its thermometric mode have it is corrosion-resistant, not by electromagnetic interference, electric insulation
Property good and long transmission distance, it is easy to maintenance the features such as, be extremely applicable to the temperature supervision of harmful influence vertical library；And by each
Respectively fire alarm occurs for one firing ring of deployment, certain the specific side that can accurately determine corresponding goods yard for the both sides in goods yard.
Brief description of the drawings
, below will be to institute in embodiment in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only described in the utility model
Some embodiments, for those of ordinary skill in the art, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is fire monitoring method flow diagram in dangerous material goods yard disclosed in the utility model；
Fig. 2 is a kind of dangerous material goods yard fire locating data collecting system block diagram disclosed in the utility model；
Fig. 3 is matched curve schematic diagram in firing ring temperature raised section disclosed in the utility model.
Embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with accompanying drawing pair
The utility model is further detailed.
Embodiment 1
The present embodiment discloses a kind of dangerous material goods yard fire monitoring method, as shown in figure 1, including：
Step S1, each sampled point on same firing ring is placed under external temperature identical calibration environment, collection is same
The stokes light of each sampled point and anti-Stokes light power data on firing ring；According to the stokes light and this anti-support
Gram this luminous power data calculate the measurement temperature of each sampled point；According to the measurement temperature of each sampled point fitting distance-
Temperature curve, the maximum temperature values in the firing ring length range are obtained according to distance-temperature curve of fitting；According to described
The error of maximum temperature values and outside calibration actual temperature determines the compensating parameter of the firing ring.
Step S2, under actually detected environment, gather on the same firing ring stokes light of each sampled point with it is anti-
Stokes light power data；Each sampled point is calculated according to the stokes light and anti-Stokes light power data
Measurement temperature；Distance-temperature curve is fitted according to the measurement temperature of each sampled point, according to distance-temperature curve of fitting
Obtain the maximum temperature values in the firing ring length range；The compensating parameter is to being currently fitted according to determined by calibration
Maximum temperature values compensate to obtain the actual temperature in goods yard corresponding with the firing ring.
In the present embodiment, in fiber optic temperature T0Under, the signal ratio R (T of anti-Stokes light and stokes light0) be：
Wherein, h is Planck's constant, and k is Boltzmann constant, ΔvFor Raman frequency shift, Pas, PsRespectively anti-stoke
The power of this light and stokes light, K1For the coefficient relevant with anti-Stokes scattering and stokes scattering, αas、αsRespectively
For the attenuation coefficient of anti-Stokes light, stokes light in a fiber, L is the fiber lengths corresponding to sampled point；
By the R (T) and reference point R (T of each sampled point on optical fiber0) make division, optical fiber attenuation that just can be in subtractive (1)
And constant term, each sampling calculated according to the stokes light and anti-Stokes light power data can be obtained after arrangement
The measurement temperature T of point：
Wherein, the reference point is derived from correction optical fiber, the correction optical fiber be located in temperature-measuring optical fiber first firing ring and
Between the photo-coupler of fiber information collecting part, and the correction optical fiber is connected with thermocouple to determine the light of the reference point
Fine temperature T0。
Preferably, in fitting, distance-temperature curve of above-mentioned firing ring is approximately to meet model y=aexp (- (((x-
b)/c)2) Gaussian function, and model parameter a, b, c are solved using least square method, corresponding, each thermometric
The length of ring covers at least three sampled point of the fiber information collecting part.In the present embodiment, by largely testing
Card, the maximum temperature values T of fittingmWith actual temperature TrMeet equation below：
Optionally, each sampled point passes through the fiber information collection portion of integrated OTDR functions apart from the distance of light source on firing ring
Divide and determine.Optionally, as shown in Fig. 2 a kind of dangerous material goods yard fire locating data collecting system is also disclosed in the present embodiment, including
Fiber information collecting part and temperature-measuring optical fiber；Fiber information collecting part includes (it is 1550nm that centre wavelength, which can be selected) at a high speed again
Light-pulse generator 1, photo-coupler 2, optical splitter 3 and obtain stokes light and anti-Stokes light power data respectively with binary channels
Collecting unit 4, photo-coupler is connected with the temperature-measuring optical fiber, high-speed pulse light source and optical splitter respectively, and optical splitter also with this
Collecting unit connects.The fiber information collecting part is existing conventional design, if necessary, can also be further before data acquisition
The stokes light and anti-Stokes light isolated are filtered and enhanced processing.The data output end of the collecting unit can
Be connected with computer, for the computer based on Raman scattering to based on the Correlation method for data processing method in the present embodiment to dangerous material goods
Position carries out fire monitoring and positioning.Further, the computer is integrated with the GPRS that data remote is realized after temperature measurement data is preserved
Module, the data after processing can upload onto the server, and realize timely, continuous and long-term monitoring, and can coordinate automatic fire-fighting facility
Ensure storage satety, there is good economic benefit and social benefit.
Wherein it is preferred to the temperature-measuring optical fiber in the present embodiment is the whole piece optical fiber for being sequentially wound in all goods yards, and each institute
The both sides in goods yard are stated respectively formed with a firing ring.Fire announcement occurs for certain the specific side that can thereby accurately determine corresponding goods yard
It is alert.It is understood by those skilled in the art that as a kind of scheme deteriorated of the present embodiment, can also be only in adjacent goods yard
Centre sets a firing ring, but the precision that such a mode positions is very big compared to the preferred embodiment range of decrease of the present embodiment.
In the present embodiment, above-mentioned calibration environment can be by the way of warm water soaks firing ring.During immersion, to ensure calibration essence
Degree, each several part of firing ring are required for being immersed in same warm water.Calibration in the present embodiment can also be considered as each survey of determination
The warm corresponding compensating parameter of ring, in order to be compensated in actual monitoring to the maximum temperature values being fitted according to measurement temperature
Accurately to determine the actual temperature in the corresponding goods yard of firing ring.In other words, above-mentioned solution parameter beta usually requires in the present embodiment
Each firing ring is each solved under calibration environment.
【Experimental verification】
Temperature-measuring optical fiber caudal is wound in vertical library shelf under experimental situation, vertical library shares five layers, between the upper and lower away from for 30cm,
Every layer is disposed with 10 goods yards, each long 70cm in goods yard, wide 60cm；Temperature-measuring optical fiber is with "the" shape by positioned at most lower left goods yard
Play winding, final routing to shelf most upper right side.Bending Deformation of the optical fiber in winding can cause fibre loss, to subtract as far as possible
Influence of this few loss to optical fiber temperature-measurement therefore the small multimode fibre of performance change after selection deformation.Optical fiber temperature-measurement sampling precision is
0.4m, to improve precision, the firing ring for being about 2m is set at left and right sides of each goods yard during wiring.
With total length 1500m optical fiber under laboratory environment, experiment fiber segment is wound on the tiered warehouse facility shelf of laboratory,
Fiber lengths about 300m is taken altogether, and experiment goods yard amounts to 50, wherein each goods yard about takes 6m optical fiber；Optical Fiber Winding is to shelf
Afterwards, a calibration is monitored in a manner of warm water soaks firing ring.Temperature-range image has significantly after firing ring is soaked
Elevated regions, extracted for temperature tab section partial data in gathered data, scatterplot as shown in Figure 3.
Distance-temperature curve of fiber optic temperature protruding point part can be approximately meet y=aexp (- (((x-b)/c) 2) this
The Gaussian function of one model, model parameter a, b, c are solved using least square method.Thermometric is selected after obtaining fitting function
High temperature early warning measurement result of the function maxima as this firing ring in the range of ring length, to single firing ring at different temperatures
Data take multiple measurements, maximum temperature values of the record fitting gained function in firing ring length range, measurement result is such as
Shown in table 1.
Table 1：
By the finding of table 1, the actual temperature at temperature measuring point is higher, and the error amount between measured value and actual value is bigger, and analysis is same
The multiple measurement data of one temperature measuring point finds square proportional, the measurement temperature T of measurement error value and actual temperature valuemWith
Actual temperature TrMeet equation below：
Temperature spot is compensated after solving parameter beta.Measured temperature maximum is 58.1 DEG C before compensation, with measured place thermal source
(71 DEG C) of actual temperature difference is very big, and temperature maximum is 70.0 DEG C after calibration, algorithm effectively reduce measured value with it is true
Error between value.
Further, in monitoring placement thermal source on the left of goods yard corresponding to same firing ring, system in a period of time is noted down
Measurement temperature value, gained temperature value will be measured every time and will be noted down in chronological order, respective counts are carried out according to the present embodiment above method
After processing, the temperature rise curve of high temperature alarm point is obtained, high temperature dot early warning, and heat used just occur in 3s systems after thermal source is placed
The rate of climb for the temperature value that the higher monitoring of source temperature obtains is faster, and stable state is in after about 30s.
To sum up, fire monitoring method in dangerous material goods yard disclosed in the present embodiment, the Si Tuo of multimode fibre retroreflection is gathered
The luminous power of both Ke Si light and anti-Stokes light, realize the temperature data acquisition to each thermometric section on optical fiber.In firing ring
When high temperature dot occurs in monitored area, fitting algorithm and Error Compensation Algorithm are used to the gathered data of firing ring, ensure high temperature prison
The degree of accuracy of measuring point temperature-measuring results.Can after there is high-temperature condition quick response, and in time display problem goods yard.With good
Economic benefit and social benefit.
Embodiment 2
Corresponding with above method embodiment, the present embodiment discloses a kind of dangerous material goods yard fire hazard monitoring system, including：
First subsystem, for each sampled point on same firing ring to be placed under external temperature identical calibration environment,
Gather the stokes light of each sampled point and anti-Stokes light power data on same firing ring；According to the stokes light
The measurement temperature of each sampled point is calculated with anti-Stokes light power data；Intended according to the measurement temperature of each sampled point
Distance-temperature curve is closed, the maximum temperature values in the firing ring length range are obtained according to distance-temperature curve of fitting；
The compensating parameter of the firing ring is determined according to the error of the maximum temperature values and outside calibration actual temperature；
Second subsystem, under actually detected environment, gathering the stoke of each sampled point on the same firing ring
This light and anti-Stokes light power data；According to the stokes light and the calculating of anti-Stokes light power data are each
The measurement temperature of sampled point；According to the measurement temperature of each sampled point be fitted distance-temperature curve, according to the distance of fitting-
Temperature curve obtains the maximum temperature values in the firing ring length range；The compensating parameter is to working as according to determined by calibration
The maximum temperature values of preceding fitting compensate to obtain the actual temperature in goods yard corresponding with the firing ring.
Optionally, above-mentioned first subsystem and/or the second subsystem include：
Fiber information collecting part and temperature-measuring optical fiber；
The fiber information collecting part is included high-speed pulse light source, photo-coupler, optical splitter and obtained respectively with binary channels
Take the collecting unit of stokes light and anti-Stokes light power data, the photo-coupler respectively with the temperature-measuring optical fiber,
The high-speed pulse light source and optical splitter connection, the optical splitter are connected with the collecting unit；
The temperature-measuring optical fiber is sequentially to be wound in the whole piece optical fiber in all goods yards, and the both sides in each goods yard respectively formed with
One firing ring；
The data output end of the collecting unit is connected with computer, so that the computer is based on Raman scattering to the danger
Product goods yard carries out fire monitoring and positioning, and the Correlation method for data processing of the computer will not be described here with reference to above-described embodiment 1.
It is correction light that the optical fiber between photo-coupler and first firing ring is connected in the system, in above-mentioned temperature-measuring optical fiber
Fibre, and the correction optical fiber is connected with thermocouple.
Similarly, dangerous material goods yard fire hazard monitoring system disclosed in the present embodiment, the Si Tuo of multimode fibre retroreflection is gathered
The luminous power of both Ke Si light and anti-Stokes light, realize the temperature data acquisition to each thermometric section on optical fiber.In firing ring
When high temperature dot occurs in monitored area, fitting algorithm and Error Compensation Algorithm are used to the gathered data of firing ring, ensure high temperature prison
The degree of accuracy of measuring point temperature-measuring results.Can after there is high-temperature condition quick response, and in time display problem goods yard.With good
Economic benefit and social benefit.
In addition, the utility model is fitted solution actual temperature by the measurement temperature of multiple sampled points on firing ring,
The spacing between neighbouring sample point can further be reduced；It is existing that Raman scattering is big for the common sampling interval in other fields
More both greater than 1m, and the utility model can reduce to corresponding sampling interval 0.4m or so, so that related application result
Precision significantly increase.
Some one exemplary embodiments of the present utility model are only described by way of explanation above, undoubtedly, for
One of ordinary skill in the art, can be with a variety of in the case of without departing from spirit and scope of the present utility model
Mode is modified to described embodiment.Therefore, above-mentioned accompanying drawing and description are inherently illustrative, should not be construed as
Limitation to the utility model claims protection domain.
Claims (6)
- A kind of 1. dangerous material goods yard fire locating data collecting system, it is characterised in that including：Fiber information collecting part and temperature-measuring optical fiber；The fiber information collecting part includes high-speed pulse light source, photo-coupler, optical splitter and obtains this respectively with binary channels The collecting unit of lentor light and anti-Stokes light power data, the photo-coupler respectively with the temperature-measuring optical fiber, described High-speed pulse light source and optical splitter connection, the optical splitter are connected with the collecting unit；The temperature-measuring optical fiber is the whole piece optical fiber for being sequentially wound in all goods yards, and the both sides in each goods yard are respectively formed with one Firing ring.
- 2. dangerous material goods yard fire locating data collecting system according to claim 1, it is characterised in that each thermometric The length of ring covers at least three sampled point of the fiber information collecting part.
- 3. dangerous material goods yard fire locating data collecting system according to claim 1 or 2, it is characterised in that the survey It is correction optical fiber that the optical fiber between the photo-coupler and first firing ring is connected in warm optical fiber, and the correction optical fiber is connected with Thermocouple.
- 4. dangerous material goods yard fire locating data collecting system according to claim 3, it is characterised in that the collection is single The data output end of member is connected with computer, and fire monitoring is carried out to the dangerous material goods yard so that the computer is based on Raman scattering And positioning.
- 5. dangerous material goods yard fire locating data collecting system according to claim 4, it is characterised in that the temperature measuring optical Fibre uses multimode fibre.
- 6. dangerous material goods yard fire locating data collecting system according to claim 5, it is characterised in that the computer collection Into there is GPRS module that data remote is realized after temperature measurement data is preserved.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720199978.4U CN206672305U (en) | 2017-03-02 | 2017-03-02 | Dangerous material goods yard fire locating data collecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720199978.4U CN206672305U (en) | 2017-03-02 | 2017-03-02 | Dangerous material goods yard fire locating data collecting system |
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| CN206672305U true CN206672305U (en) | 2017-11-24 |
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| CN201720199978.4U Active CN206672305U (en) | 2017-03-02 | 2017-03-02 | Dangerous material goods yard fire locating data collecting system |
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