CN105938017A - Chemical fire and ordinary fire recognition method, device and equipment - Google Patents
Chemical fire and ordinary fire recognition method, device and equipment Download PDFInfo
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- CN105938017A CN105938017A CN201610268206.1A CN201610268206A CN105938017A CN 105938017 A CN105938017 A CN 105938017A CN 201610268206 A CN201610268206 A CN 201610268206A CN 105938017 A CN105938017 A CN 105938017A
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- 239000000126 substance Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001228 spectrum Methods 0.000 claims abstract description 81
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 7
- 238000007405 data analysis Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010183 spectrum analysis Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 238000000205 computational method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0014—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation from gases, flames
- G01J5/0018—Flames, plasma or welding
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- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a chemical fire and ordinary fire recognition method, device, equipment and system. According to the method, an estimated peak value is searched and a valley value range is constructed according to the estimated peak value, then a peak valley depth value of the valley value range is calculated, and finally whether target flame is chemical fire or ordinary fire is judged through existence of the peak valley depth value of the valley value range exceeding a threshold. Flame spectral analysis is performed, and whether target flame is chemical fire or ordinary fire is judged according to the particularity of the flame spectrum so that firefighters are assisted in fire extinguishing, and the problem of encouraging fire caused by extinguishing fire by water can be avoided.
Description
Technical field
The present invention relates to factory's fire-fighting.
Background technology
In factory, the most all kinds of chemical plant, fire-fighting is the premise of safety in production.Owing to industrial building is deposited
The particularity of material, when there is fire, tends not to use water as material of putting out a fire.Because some material, than
Such as active metal, it is possible to water generation exothermic chemical reaction, at submerged combustion, thus encourage the intensity of a fire.Therefore,
When in the factory the condition of a fire occurring, it is judged that flame is that common fire still chemical industry fire is extremely important.
Summary of the invention
Problem to be solved by this invention: common fire and the identification of chemical industry fire.
For solving the problems referred to above, the scheme that the present invention uses is as follows:
Method for distinguishing known by the fiery and common fire of a kind of chemical industry according to the present invention, and the method comprises the following steps:
S1: obtain the spectrum sample data of target flame;Described spectrum sample data are made up of the light intensity sequence that optical wavelength is corresponding;
S2: sequentially find out the peak value of peak point and the valley of valley point from spectrum sample data, composition is made up of peak value and valley
Peak-to-valley value sequence;
S3: according to peak-to-valley value sequence construct valley Interval Set;Described valley Interval Set is the set that valley is interval;Described valley is interval
It is made up of peak value a, valley m, peak value b;
S4: calculate the Valley Depth value that in described valley Interval Set, each valley is interval;
S5: judge that whether the Valley Depth value in each valley interval is more than threshold value;When there is the Valley Depth that valley is interval
Judge when value is more than threshold value that current flame is chemical industry fire, be otherwise common fire.
Further, the Valley Depth value employing equation below that calculating valley described in step S4 is interval:Wherein, d is the Valley Depth value that valley is interval, a and b is respectively in valley interval
Two peak values, m is the valley in valley interval.
The device that the fiery and common fire of a kind of chemical industry according to the present invention identifies, this device includes with lower module:
M1: for obtaining the spectrum sample data of target flame;Described spectrum sample data are the light intensity sequences corresponding by optical wavelength
Composition;
M2: for sequentially finding out the peak point of peak point and the valley of valley point from spectrum sample data, composition is by peak value and valley
The peak-to-valley value sequence constituted;
M3: for according to peak-to-valley value sequence construct valley Interval Set;Described valley Interval Set is the set that valley is interval;Described valley
Interval is made up of peak value a, valley m, peak value b;
M4: for calculating the Valley Depth value that in described valley Interval Set, each valley is interval;
M5: for judging that whether the Valley Depth value in each valley interval is more than threshold value;When there is the peak that valley is interval
Judge when paddy depth value is more than threshold value that current flame is chemical industry fire, be otherwise common fire.
Further, the Valley Depth value employing equation below that calculating valley described in module M4 is interval:Wherein, d is the Valley Depth value that valley is interval, a and b is respectively in valley interval
Two peak values, m is the valley in valley interval.
The equipment that the fiery and common fire of a kind of chemical industry according to the present invention identifies, this equipment include spectrum sample device,
Processor and display device;Spectrum sample device is connected by data wire with processor;Described spectrum sample device is used for
Gather the spectrum sample data of target flame, and described spectrum sample data are sent to institute by described data wire
State processor;Described processor knows method for distinguishing to described spectrum sample number by the above-mentioned fiery and common fire of chemical industry
Judge that target flame is that chemical industry is fiery or commonly fiery according to analyzing;Described display device is connected with described processor, uses
It is that chemical industry is fiery or commonly fiery in display target flame.
The system that the fiery and common fire of a kind of chemical industry according to the present invention identifies, this system include spectrum sample instrument and
Main frame;Spectrum sample instrument is connected with main frame;Described spectrum sample instrument is for gathering the spectrum sample number of target flame
According to, and described spectrum sample data are sent to described main frame;Described main frame include Sampling Interface, processor and
Memorizer;Described processor connects described spectrum sample instrument by Sampling Interface, for by above-mentioned chemical industry fire
Know method for distinguishing with common fire and described spectrum sample data analysis is judged, and target flame is that chemical industry is fiery or common
Fire.
The technique effect of the present invention is as follows: the present invention is by flame spectrometry, according to the spy of flame spectrum
Different property, it is judged that target flame is that chemical industry is fiery or commonly fiery, provides, for fire fighter, help of putting out a fire, thus avoids
Occur fire-fighting by water the problem encouraging flame on the contrary.
Accompanying drawing explanation
Fig. 1 and Fig. 2 is the perspective view of the equipment that the fiery and common fire of hand-held chemical industry identifies.Wherein,
Fig. 1 is visual angle, front end, and Fig. 2 is visual angle, rear end.
Fig. 3 is the electrical connection schematic diagram of the equipment that the fiery and common fire of hand-held chemical industry identifies.
Fig. 4 is the curve of spectrum of a kind of common fire flame.
Fig. 5 is the curve of spectrum of a kind of chemical industry fire flame.
Fig. 6 is the structural representation of the system that the fiery and common fire of a kind of chemical industry identifies.
Fig. 7 is the electrical structure schematic diagram of main frame 32 in Fig. 6.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further details.
Embodiment 1
As shown in Figure 1 and Figure 2, the present embodiment is the equipment that the fiery and common fire of a kind of chemical industry identifies.Fig. 3 is this
The internal electric connection diagram of the equipment of embodiment.The equipment of the present embodiment is a kind of hand-held equipment, including
Housing 11 and be arranged on the main control board 21 within housing 11, spectrum sample device 22 and battery, Yi Jian
The display 12 being contained on housing 11.The both sides, outside of housing 11 are each provided with handle 14 respectively.Display
12 rear ends being positioned at housing 11, the camera lens 13 of spectrum sample device 22 is positioned at the front end of housing 11.Spectrum is adopted
Sample device 22 is a kind of embedded spectrogrph, is provided with camera lens 13, prism and photoelectric sensor.Spectrum sample
Device 22 gathers the spectrum sample data of target flame by camera lens 13, prism and photoelectric sensor, then will
Spectrum sample data are sent to main control board 21 by data wire.Main control board 21 is provided with processor 23
With memorizer 25.The spectrum sample data being sent to main control board 21 are finally transferred in processor 23
It is analyzed.By analyzing spectrum sample data, processor 23 judges that target flame is that chemical industry is fiery or commonly fiery,
And spectrum sample data and judged result are shown at display 12.Spectrum sample data on the display 12 with
Diagramatic way shows.Processor 23 be analyzed spectrum sample data judging target flame be chemical industry fire also
Being the method for common fire, method for distinguishing known by the fiery and common fire of chemical industry being also indication of the present invention.
It is as follows that method for distinguishing known by the fiery and common fire of the chemical industry of the present embodiment:
First, step S1, the spectrum sample data of target flame are obtained by spectrum sample device 22.This spectrum
Sampled data is made up of the light intensity sequence that optical wavelength is corresponding, can represent light intensity sequence P={p by array1,
p2, p3..., pN}.Wherein, piFor the light intensity value of i-th range of wavelengths, light intensity value pi+1Representative
Wavelength more than light intensity value piRepresentative wavelength, N represents range of wavelengths number.Light intensity sequence P figure is permissible
It is expressed as the curve of spectrum as shown in Figure 4, Figure 5.Wherein, Fig. 4 is the curve of spectrum of a kind of common fire flame,
Fig. 5 is the curve of spectrum of a kind of chemical industry fire flame.In Fig. 4 and Fig. 5, abscissa is optical wavelength, vertical coordinate
For light intensity value, the range of wavelengths sampled is 200nm~1200nm.In Fig. 4, two dotted line mid portions are
Wavelength is the visible region of 400nm~760nm, and left part is the ultraviolet range that wavelength is less than 400nm,
Right side is more than the infrared spectral range of 760nm for wavelength.It should be noted that it will be appreciated by those skilled in the art that
The light intensity value that spectrum sample device 22 collects represents the light intensity value of specific range of wavelengths, therefore, aforementioned " light
Spectrum sampled data is made up of the light intensity sequence that optical wavelength is corresponding " in " optical wavelength " actually represent
Range of wavelengths.
Then, step S2, from spectrum sample data, sequentially find out the peak value of peak point and the valley of valley point,
The peak-to-valley value sequence that composition is made up of peak value and valley.Peak point and valley point that is to say that Fig. 4, Fig. 5 light is set a song to music
Extreme point in line.The peak value of peak point is also the maximum in the curve of spectrum;The valley of valley point is also
Minimum in the curve of spectrum.Specific to spectrum sample data discrete light intensity sequence P={p1, p2,
p3..., pNIn }, the peak value p of peak pointxMeet following two condition: first condition is
px=max{px-1, px-2, px-3... };Second condition is pxMore than px+1.The valley p of valley pointy
Meet following two condition: first condition is py=min{py-1, py-2, py-3... };Second bar
Part is pyLess than py+1.Owing to spectrum sample data existing multiple peak point and multiple valley point, correspondingly,
The valley that peak value corresponding to peak point is corresponding with valley point also has a lot of, therefore can form peak-to-valley value sequence
V={v1, v2, v3..., vK}.Wherein, viFor light intensity value, it is peak value when i is even number, works as i
For being valley during odd number, v1And vKFor valley;K represents peak value and valley sum, is necessarily odd number.Typically
For, v1=p1, vK=pN, p1And pNIt is necessarily valley, if p1And pNFor peak value, then by p1With
pNAs rejecting abnormal data, thus ensure v1And vKIt it is necessarily valley.
Then, step S3, according to peak-to-valley value sequence construct valley Interval Set.Valley Interval Set is that valley is interval
Set.Valley interval is made up of peak value a, valley m, peak value b.By front described, peak-to-valley value sequence V={v1,
v2, v3..., vKIt is peak value and the alternate sequence of valley.Valley Interval Set can be expressed as W={w1,
w2, w3..., wT}.Wherein, wiInterval for i-th valley.Valley interval wi={ ai, mi,
bi}.Wherein, aiFor peak value a, m that i-th valley is intervaliFor valley m, b that i-th valley is intervali
For the peak value b that i-th valley is interval.Specific in the curve of spectrum, as it is shown in figure 5, a and b is two peaks
Value, m is valley, then represents a valley interval between two dotted lines.Valley interval wiMeet: ai=v2i,
mi=v2i+1, bi=v2i+2.Namely peak-to-valley value sequence V can build T=(K-1)/2 valley interval.
Then, step S4, calculate the Valley Depth value that in described valley Interval Set, each valley is interval.This reality
The Valley Depth value in the valley interval executing example uses equation below to calculate:Wherein, d is paddy
The Valley Depth value that value is interval, two peak values that a and b is respectively in valley interval, m is in valley interval
Valley.It is, for specific valley interval wiValley Depth value diHave:
It should be noted that the computational methods of Valley Depth value that the present embodiment is used are only that one is the simplest
Computational methods, it will be appreciated by those skilled in the art that the method that can also use other calculates, and such as calculate valley district
Valley and two peak value m between, variance or standard variance between a, b can also be as the peaks in valley interval
Paddy depth value.
Finally, step S5, it is judged that whether the Valley Depth value in each valley interval is more than threshold value;When there is paddy
Judge when the Valley Depth value in value interval is more than threshold value that current flame is chemical industry fire, be otherwise common fire.Here
Threshold value is fixed value set in advance.It will be appreciated by those skilled in the art that the Valley Depth value that different valleies is interval
Computational methods, need corresponding different threshold value.
The principle that method for distinguishing known by the fiery and common fire of the chemical industry of the present embodiment is as follows: fire burned flame is usual
Burn for various foreign material, therefore, under the combustion characteristic spectrum and absorption spectrum of various heterogeneous product, flame light
Spectral curve shows as the most relatively smooth, there is not the most particularly peak valley, and this is common fire.
When fire betides chemical plant, certain special article occupies the biggest share, and now, flame curve shows
For there is the most particularly peak valley as shown in Figure 5.Due to, flame spectrum curve manifests themselves as approximation
In normal distribution curve, therefore, the present embodiment uses the method measuring the interval Valley Depth value of valley, permissible
Find out valley as shown in Figure 5 interval such that it is able to be easier to judge feature peak valley, thus distinguish chemical industry fire
With common fire.
Embodiment 2
Fig. 6 be a kind of chemical industry fiery and common fire identify system, this system be a kind of in chemical plant from
The subsystem of dynamic fire-fighting system, including spectrum sample instrument 31 and main frame 32.Spectrum sample instrument 31 and main frame 32
It is connected by data wire.Spectrum sample instrument 31 is used for gathering the spectrum sample data of target flame, and by spectrum
Sampled data is sent to main frame 32.Main frame 32, as it is shown in fig. 7, comprises Sampling Interface 43, processor 41
With memorizer 42.Sampling Interface 43 is used for connecting main frame 32 and spectrum sample instrument 31.In the present embodiment, adopt
Sample interface 43 uses RS485 interface.Thus, processor 41 connects spectrum sample instrument by Sampling Interface 43
31, and the spectrum sample data of target flame are obtained by spectrum sample instrument 31.Processor 41 receives target
After the spectrum sample data of flame, it is analyzed, it is judged that target flame is that chemical industry is fiery or commonly fiery.Place
Reason device 41 be analyzed spectrum sample data judging method that target flame is the fiery or common fire of chemical industry and
Method for distinguishing known by the fiery and common fire of chemical industry in embodiment 1, repeats no more.Processor 41 is according to target fire
The analysis for the fiery or common fire of chemical industry of flame, controls fire attack system and uses fire-fighting liquid or water to put out a fire.If
During for chemical industry fire, put out a fire with fire-fighting liquid, for time common, fire-fight by water.Fire attack system and fire-fighting liquid are not these
Bright discussed category, it is not necessary to repeat.
It should be noted that the present embodiment uses RS485 interface to connect spectrum sample instrument 31 and main frame 32.Those skilled in the art manage
Solve, it is also possible to by other means, such as network interface or Wifi mode.
Claims (6)
1. method for distinguishing known by the fiery and common fire of chemical industry, it is characterised in that the method comprises the following steps:
S1: obtain the spectrum sample data of target flame;Described spectrum sample data are made up of the light intensity sequence that optical wavelength is corresponding;
S2: sequentially find out the peak value of peak point and the valley of valley point, the peak-to-valley value sequence that composition is made up of peak value and valley from spectrum sample data;
S3: according to peak-to-valley value sequence construct valley Interval Set;Described valley Interval Set is the set that valley is interval;Described valley interval is made up of peak value a, valley m, peak value b;
S4: calculate the Valley Depth value that in described valley Interval Set, each valley is interval;
S5: judge that whether the Valley Depth value in each valley interval is more than threshold value;Judging that when there is the interval Valley Depth value of valley more than threshold value current flame is chemical industry fire, being otherwise common fire.
2. method for distinguishing known by the fiery and common fire of chemical industry as claimed in claim 1, it is characterised in that the Valley Depth value employing equation below that calculating valley described in step S4 is interval:Wherein, d is the Valley Depth value that valley is interval, and two peak values that a and b is respectively in valley interval, m is the valley in valley interval.
3. the device that the fiery and common fire of chemical industry identifies, it is characterised in that this device includes with lower module:
M1: for obtaining the spectrum sample data of target flame;Described spectrum sample data are made up of the light intensity sequence that optical wavelength is corresponding;
M2: for sequentially finding out the peak value of peak point and the valley of valley point from spectrum sample data, the peak-to-valley value sequence that composition is made up of peak value and valley;
M3: for according to peak-to-valley value sequence construct valley Interval Set;Described valley Interval Set is the set that valley is interval;Described valley interval is made up of peak value a, valley m, peak value b;
M4: for calculating the Valley Depth value that in described valley Interval Set, each valley is interval;
M5: for judging that whether the Valley Depth value in each valley interval is more than threshold value;Judging that when there is the interval Valley Depth value of valley more than threshold value current flame is chemical industry fire, being otherwise common fire.
4. the device that the fiery and common fire of chemical industry identifies as claimed in claim 3, it is characterised in that the Valley Depth value employing equation below that calculating valley described in module M4 is interval:Wherein, d is the Valley Depth value that valley is interval, and two peak values that a and b is respectively in valley interval, m is the valley in valley interval.
5. the equipment that the fiery and common fire of chemical industry identifies, it is characterised in that this equipment includes spectrum sample device, processor and display device;Spectrum sample device is connected by data wire with processor;Described spectrum sample device is for gathering the spectrum sample data of target flame, and by described data wire, described spectrum sample data are sent to described processor;Described processor is known method for distinguishing by the fiery and common fire of chemical industry as claimed in claim 1 or 2 and described spectrum sample data analysis being judged, target flame is that chemical industry is fiery or commonly fiery;Described display device is connected with described processor, is used for showing that target flame is that chemical industry is fiery or commonly fiery.
6. the system that the fiery and common fire of chemical industry identifies, it is characterised in that this system includes spectrum sample instrument and main frame;Spectrum sample instrument is connected with main frame;Described spectrum sample instrument is for gathering the spectrum sample data of target flame, and described spectrum sample data are sent to described main frame;Described main frame includes Sampling Interface, processor and memorizer;Described processor connects described spectrum sample instrument by Sampling Interface, for knowing method for distinguishing by the fiery and common fire of chemical industry as claimed in claim 1 or 2, described spectrum sample data analysis judging, target flame is that chemical industry is fiery or commonly fiery.
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CN2619256Y (en) * | 2003-04-11 | 2004-06-02 | 湖南继善高科技有限责任公司 | Intelligent flame detector |
CN2697640Y (en) * | 2004-03-31 | 2005-05-04 | 上海神明控制工程有限公司 | Double-channel intelligent flame tester |
CN1989534A (en) * | 2004-07-20 | 2007-06-27 | 通用监控器股份有限公司 | Flame detection system |
CN101128699A (en) * | 2005-02-24 | 2008-02-20 | 阿尔斯托姆科技有限公司 | Intelligent flame scanner |
CN201725336U (en) * | 2010-08-05 | 2011-01-26 | 彭庆辉 | Fire-fighting measuring and calculating device and fire-fighting vehicle using the same |
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2016
- 2016-04-27 CN CN201610268206.1A patent/CN105938017B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN2619256Y (en) * | 2003-04-11 | 2004-06-02 | 湖南继善高科技有限责任公司 | Intelligent flame detector |
CN2697640Y (en) * | 2004-03-31 | 2005-05-04 | 上海神明控制工程有限公司 | Double-channel intelligent flame tester |
CN1989534A (en) * | 2004-07-20 | 2007-06-27 | 通用监控器股份有限公司 | Flame detection system |
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