CN105938017A - Chemical fire and ordinary fire recognition method, device and equipment - Google Patents

Chemical fire and ordinary fire recognition method, device and equipment Download PDF

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Publication number
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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valley
interval
spectrum sample
value
fire
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CN201610268206.1A
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CN105938017B (en
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刘方保
俞扬吉
戴国俊
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Jiangsu Hengda Power Technology Development Co Ltd
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Jiangsu Hengda Power Technology Development Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0014Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation from gases, flames
    • G01J5/0018Flames, plasma or welding

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • 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

Fiery and the common fire of a kind of chemical industry knows method for distinguishing, device and equipment
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.
CN201610268206.1A 2016-04-27 2016-04-27 A kind of fiery and common fire of chemical industry knows method for distinguishing, device and equipment Active CN105938017B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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