CN110031112A - Five waveband flame detectors of one kind and its detection method - Google Patents
Five waveband flame detectors of one kind and its detection method Download PDFInfo
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- CN110031112A CN110031112A CN201910395795.3A CN201910395795A CN110031112A CN 110031112 A CN110031112 A CN 110031112A CN 201910395795 A CN201910395795 A CN 201910395795A CN 110031112 A CN110031112 A CN 110031112A
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- 238000001514 detection method Methods 0.000 title claims abstract description 48
- 230000006698 induction Effects 0.000 claims abstract description 7
- 238000001228 spectrum Methods 0.000 claims description 13
- 230000035945 sensitivity Effects 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000005070 sampling Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000000295 complement effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000003595 spectral effect Effects 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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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- Fire-Detection Mechanisms (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The present invention provides a kind of five waveband flame detectors and its detection methods.It is undesirable mainly to solve existing fire defector effect.The five tunnel infrared induction modules (1) include 4.3 micron waveband infrared sensors, 2.7 micron waveband infrared sensors, 2.2 micron waveband infrared sensors, 3.9 micron waveband infrared sensors, 5.3 micron waveband infrared sensors, and respectively connection is connected on processor 3 by signal amplifier, the filter in five road signal processing modules (2) respectively.Pass through the combination of unique five flame detecting wave bands, it mutually confirmed, be complementary to one another using the detection result of respective wave band, increase the anti-interference of flame detector, while can satisfy a plurality of types of flame detecting demands, to increase the accuracy and detectable distance of flame detector.
Description
Technical field
The present invention relates to a kind of five waveband flame detectors and its detection methods.
Background technique
Inspection in modern infrared flame detector mainly based on the testing result under single wave band, under other wave bands
The mode supplemented by result is surveyed to be detected, to reduce the interference in single wave band detection.Lead to during this detection
The auxiliary detection wave band often chosen is less and more concentrates, while the detection mode based on single wave band is for certain fuel
Fire defector effect is undesirable, and detection range is shorter.
The characteristics of present invention is according to flame spectrum and a variety of disturbing factor spectrum, rationally increase main detecting band and
Aided detection wave band effectively raises the detection of flame detector so as to meet further types of flame detecting demand
Performance.
Summary of the invention
The purpose of the present invention is to solve the above-mentioned problems of the prior art, and then provide a kind of five wave band flames spy
Device and its detection method are surveyed, is selected by five wave bands characteristic for tool, its testing result is mutually confirmed,
It is complementary to one another, so that the accuracy of fire defector is improved, effective the occurrence of reducing false alarm.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of five waveband flame detectors, including five tunnel infrared induction modules, five road signal processing modules, processor, it is described
Five tunnel infrared induction modules are red including 4.3 micron waveband infrared sensors, 2.7 micron waveband infrared sensors, 2.2 micron wavebands
Outer sensor, 3.9 micron waveband infrared sensors, 5.3 micron waveband infrared sensors, respectively connection passes through five road signals respectively
Signal amplifier, filter in processing module are connected on processor 3.
A kind of detection method of five waveband flame detectors, step are:
One, according to different fuel flame spectrum and spectrum of sunlight the characteristics of, using 2.7 μm of ± 150nm and 4.3 μm of ± 300nm as
Main flame detecting wave band；The disturbing factors such as sunlight, light, arc welding of appearance during flame detecting are divided
Class is divided into daylight interference, artificial heat interference, background radiation interference three categories, and according to its respective spectrum characteristic, selection
2.2 μm of ± 100nm make as daylight jammr band, 3.9 μm of ± 45nm as artificial heat jammr band, 5.3 μm of ± 90nm
For background radiation jammr band；
Two, the detection result of each sensor calculates mean power according to adjacent historical information several times, according to the spirit of flame detector
The critical threshold of sensitivity setting selection flame alarm；It is deposited when in 2.7 μm of ± 150nm and 4.3 μm of ± 300nm the two main detecting bands
It whether is that false alarm judges for detection result when detection result is greater than critical threshold；
Three, critical times between selection main detector result and aided detection result is set according to the sensitivity of flame detector
Number；When main detecting band mean power is greater than critical threshold, main detecting band result and each jammr band result are carried out
Compare, if main detecting band result is greater than 2.2 μm of ± 100nm, 3.9 μm of ± 45nm and 5.3 μm of ± 90nm, these three auxiliary are visited
The product for surveying device detection result and critical multiple, then issue flame alarm signal, be otherwise false alarm.
The beneficial effects of the present invention are: the characteristics of present invention is according to flame spectrum and a variety of disturbing factor spectrum, rationally
Main detecting band and aided detection wave band are increased, so as to meet further types of flame detecting demand, is effectively mentioned
The high detection performance of flame detector.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is Alcohol Flame spectral radiance map.
Fig. 3 is positive heptane flame spectral radiance map.
Fig. 4 is gasoline flame spectral radiance map.
Fig. 5 is five wave band flame detecting algorithm flow charts.
Specific embodiment
Below in conjunction with attached drawing, the present invention is described in further detail: the present embodiment is being with technical solution of the present invention
Under the premise of implemented, give detailed embodiment, but protection scope of the present invention is not limited to following embodiments.
As shown in Figure 1, five waveband flame detector of one kind involved in the present embodiment, can be divided into 3 function moulds by function
Block includes five tunnel infrared induction modules 1, five road signal processing modules 2, processor 3, five tunnel infrared induction modules 1 packet
Include 4.3 micron waveband infrared sensors, 2.7 micron waveband infrared sensors, 2.2 micron waveband infrared sensors, 3.9 micron waves
Section infrared sensor, 5.3 micron waveband infrared sensors, respectively connection passes through the signal in five road signal processing modules 2 respectively
Amplifier, filter are connected on processor 3.
A kind of detection method of five waveband flame detectors,
The characteristics of according to different fuel flame spectrum and spectrum of sunlight, using 2.7 μm of ± 150nm and 4.3 μm of ± 300nm as mainly
Flame detecting wave band；During can satisfy pluralities of fuel flame detecting, for the need in the indexs such as detection range, sensitivity
It asks.
Classify for the disturbing factors such as sunlight, light, arc welding of appearance during flame detecting, is divided into day
Three categories are interfered in light interference, artificial heat interference, background radiation, and according to its respective spectrum characteristic, selected 2.2 μm ±
100nm is as daylight jammr band, and 3.9 μm of ± 45nm are as artificial heat jammr band, and 5.3 μm of ± 90nm are as background radiation
The detection result of 5 kinds of wave bands is combined, to improve the accuracy of flame detecting to realize exclusive PCR by jammr band
The function of alarm signal improves the overall performance of flame detector.
The detection result of each sensor calculates mean power according to adjacent historical information several times, according to the spirit of flame detector
The critical threshold of sensitivity setting selection flame alarm；It is deposited when in 2.7 μm of ± 150nm and 4.3 μm of ± 300nm the two main detecting bands
Whether it is that false alarm judges for detection result when detection result is greater than critical threshold, such as Fig. 2-Fig. 4, selects 2.7 μm
± 150nm and 4.3 μm of ± 300nm can satisfy the detection demand of common fuels flame as the wave band of main detector.
Critical times between selection main detector result and aided detection result is set according to the sensitivity of flame detector
Number；When main detecting band mean power is greater than critical threshold, main detecting band result and each jammr band result are carried out
Compare, if main detecting band result is greater than 2.2 μm of ± 100nm, 3.9 μm of ± 45nm and 5.3 μm of ± 90nm, these three auxiliary are visited
The product for surveying device detection result and critical multiple, then issue flame alarm signal, be otherwise false alarm.
The detection result of each wave band need to calculate mean power according to historical information, then be compared analysis.
It is made a choice according to flame alarm critical threshold of the selection of sensitivity for main detecting band, passes through detection result
First step alarm selection is made in comparison with threshold, is selected between main detector result and aided detection result according to sensitivity
Critical multiple, accordingly for whether being that false alarm judges.
The detectable signal of each wave band need to recycle algorithm pair by the processing of signal amplification circuit and signal filter circuit
As a result it is analyzed.
The foregoing is only a preferred embodiment of the present invention, these specific embodiments are all based on the present invention
Different implementations under general idea, and scope of protection of the present invention is not limited thereto, it is any to be familiar with the art
Technical staff in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all cover of the invention
Within protection scope.Therefore, the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.
Claims (6)
1. a kind of five waveband flame detectors, including five tunnel infrared induction modules (1), five road signal processing modules (2), processor
(3), which is characterized in that the five tunnel infrared induction modules (1) include 4.3 micron waveband infrared sensors, 2.7 micron waves
Section infrared sensor, 2.2 micron waveband infrared sensors, 3.9 micron waveband infrared sensors, 5.3 micron waveband infrared sensings
Device, respectively connection is connected on processor (3) by signal amplifier, the filter in five road signal processing modules (2) respectively.
2. a kind of detection method of five waveband flame detector according to claim 1, step are:
One, according to different fuel flame spectrum and spectrum of sunlight the characteristics of, using 2.7 μm of ± 150nm and 4.3 μm of ± 300nm as
Main flame detecting wave band；The disturbing factors such as sunlight, light, arc welding of appearance during flame detecting are divided
Class is divided into daylight interference, artificial heat interference, background radiation interference three categories, and according to its respective spectrum characteristic, selection
2.2 μm of ± 100nm make as daylight jammr band, 3.9 μm of ± 45nm as artificial heat jammr band, 5.3 μm of ± 90nm
For background radiation jammr band；
Two, the detection result of each sensor calculates mean power according to adjacent historical information several times, according to the spirit of flame detector
The critical threshold of sensitivity setting selection flame alarm；It is deposited when in 2.7 μm of ± 150nm and 4.3 μm of ± 300nm the two main detecting bands
It whether is that false alarm judges for detection result when detection result is greater than critical threshold；
Three, critical times between selection main detector result and aided detection result is set according to the sensitivity of flame detector
Number；When main detecting band mean power is greater than critical threshold, main detecting band result and each jammr band result are carried out
Compare, if main detecting band result is greater than 2.2 μm of ± 100nm, 3.9 μm of ± 45nm and 5.3 μm of ± 90nm, these three auxiliary are visited
The product for surveying device detection result and critical multiple, then issue flame alarm signal, be otherwise false alarm.
3. a kind of detection method of five waveband flame detectors according to claim 2, which is characterized in that the detection of each wave band
As a result it needs to calculate mean power according to historical information, then is compared analysis.
4. a kind of detection method of five waveband flame detectors according to claim 2, which is characterized in that according to sensitivity
It selects the critical threshold of flame alarm for main detecting band to make a choice, makes first by the comparison of detection result and threshold
Step alarm selection, selects the critical multiple between main detector result and aided detection result according to sensitivity, accordingly to then
It is no to be judged for false alarm.
5. a kind of detection method of five waveband flame detectors according to claim 2, which is characterized in that each waveband channels exist
In detection process, sample mode selection is sampled by the way of synchronized sampling.
6. a kind of detection method of five waveband flame detectors according to claim 2, which is characterized in that the detection of each wave band
Signal need to recycle algorithm to analyze result by the processing of signal amplification circuit and signal filter circuit.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113609769A (en) * | 2021-08-03 | 2021-11-05 | 无锡格林通安全装备有限公司 | Design method of multiband red ultraviolet hydrogen flame detector |
| CN115294715A (en) * | 2022-07-29 | 2022-11-04 | 浙江华消科技有限公司 | Flame identification method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427252A (en) * | 2001-12-21 | 2003-07-02 | 中国科学技术大学 | Three wave length total scattering laser smoke sensing fire hazard detecting method and its apparatus |
| CN201616160U (en) * | 2009-05-26 | 2010-10-27 | 官洪运 | Multi-waveband infrared image-type large-space fire detector |
| CN108010254A (en) * | 2017-11-28 | 2018-05-08 | 无锡职业技术学院 | One kind is based on four wave band infrared flame detectors and its flame identification algorithm |
-
2019
- 2019-05-13 CN CN201910395795.3A patent/CN110031112A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427252A (en) * | 2001-12-21 | 2003-07-02 | 中国科学技术大学 | Three wave length total scattering laser smoke sensing fire hazard detecting method and its apparatus |
| CN201616160U (en) * | 2009-05-26 | 2010-10-27 | 官洪运 | Multi-waveband infrared image-type large-space fire detector |
| CN108010254A (en) * | 2017-11-28 | 2018-05-08 | 无锡职业技术学院 | One kind is based on four wave band infrared flame detectors and its flame identification algorithm |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113609769A (en) * | 2021-08-03 | 2021-11-05 | 无锡格林通安全装备有限公司 | Design method of multiband red ultraviolet hydrogen flame detector |
| CN115294715A (en) * | 2022-07-29 | 2022-11-04 | 浙江华消科技有限公司 | Flame identification method and device |
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Application publication date: 20190719 |