CN110148277A - A kind of MEMS smoke sensor device based on double UV check - Google Patents
A kind of MEMS smoke sensor device based on double UV check Download PDFInfo
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- CN110148277A CN110148277A CN201910320567.XA CN201910320567A CN110148277A CN 110148277 A CN110148277 A CN 110148277A CN 201910320567 A CN201910320567 A CN 201910320567A CN 110148277 A CN110148277 A CN 110148277A
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- 239000000779 smoke Substances 0.000 title claims abstract description 40
- 230000003287 optical effect Effects 0.000 claims description 11
- 230000003321 amplification Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 230000004044 response Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000004615 ingredient Substances 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention relates to a kind of MEMS smoke sensor device based on double UV check, the smoke sensor device include: the light emitting diode and photosensitive reception amplifying unit of control and interface unit, driving unit, two different wave lengths；The application uses the light emitting diode of two different wave lengths, using optics double-wavelengh technique, can detection gas simultaneously ingredient and granular size, have the characteristics that inexpensive and low-power consumption；And by the multi-bit ADC converter processing in photosensitive reception amplifying unit, while by the way of no labyrinth, sensor is reduced to the Effect time of smog.The problem of present application addresses at high cost, smog low-response and the labyrinth that must arrange in pairs or groups are detected based on Traditional photovoltaic formula smoke sensor device.
Description
Technical field
The present invention relates to smoke sensor device fields, and in particular to a kind of MEMS smoke sensor device based on double UV check.
Background technique
Existing smoke sensor device presses testing principle, can substantially be divided into ionic smoke sensor formula, photoelectric smoke formula and three kinds of temperature type,
It is wherein most commonly seen with photoelectric smoke formula sensor.Photoelectric smoke formula sensor includes luminescent device, light-sensitive device and smog fan
Palace, under normal circumstances, for the light that luminescent device issues by diffusion in smog labyrinth, light-sensitive device is not receive light letter
Number, because without generating photoelectric current.But after thering is smog to enter in labyrinth, due to the effect of smoke particle, emit luminescent device
Light produces diffusion, and this diffused light is received by light-sensitive device, and the impedance of light-sensitive device is made to change, and generates photoelectric current, from
And realize the function that smoke signal is changed into electric signal.
It is relatively conventional in photoelectric smoke formula generally to use vertical or horizontal forward scattering labyrinth but small to partial size is generated
It is not responding in the open fire of 0.4um particle, can not be distinguished simultaneously for the partial sizes such as water mist, the dust factor similar with smoke particle substantially
Not.For foregoing problems, also have no lack of by dual wavelength Light-Emitting Diode as described in CN1987426A, two hairs one are received vertical
Formula two-way dispersion smoke sensing detector labyrinth, solve distinguish different colours, partial size smog and water mist, dust etc. influence.But this
Kind mode still uses common plug-in unit diode, while mating labyrinth being needed to carry out optical scattering design.
This two classes photoelectric smoke sensor first is that it is at high cost, second is that cooperation labyrinth is all needed to use, it is outer just to can achieve reduction
Enclose the influence of interference.
Summary of the invention
For the above-mentioned problems in the prior art, the present invention provides a kind of MEMS smog biography based on double UV check
Sensor, to solve the problems, such as that Traditional photovoltaic formula smoke sensor device at high cost, smog low-response and the labyrinth that must arrange in pairs or groups are detected.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of MEMS smoke sensor device based on double UV check, the smoke sensor device include: control and interface unit,
The light emitting diode and photosensitive reception amplifying unit of driving unit, two different wave lengths；
The control and interface unit are for setting what driving unit applied the light emitting diode of two different wave lengths
Operating current；And the photosensitive signal for receiving amplifying unit and being issued is received, then it is handled, from unlike signal electricity
Smoke composition is identified in flat difference, and result is reported and submitted to ppu；
The driving unit is used to apply operating current to the light emitting diode of two different wave lengths, to light two not
The light emitting diode of co-wavelength makes it launch the light of two different wave lengths respectively；
The photosensitive light for receiving amplifying unit for receiving two different wave lengths is anti-through smoke sensor device shell respectively
Optical signal after penetrating, and signal amplification is carried out by multidigit amplifier therein, then amplified signal is sent to described
Control and interface unit.
Further, the light emitting diode of described two different wave lengths is respectively blue light-emitting diode and infraluminescence two
Pole pipe.
Further, the photosensitive reception amplifying unit includes multi-bit ADC converter, and the multi-bit ADC converter is used for
The optical signal that the photosensitive reception amplifying unit receives is converted into digital signal.
Further, the driving unit, the light emitting diode of two different wave lengths and photosensitive reception amplifying unit are integrated
Portion in the chip, the control and interface unit are integrated in chip interior or realize in chip exterior.
Compared with prior art, the invention has the benefit that the application uses the light emitting diode of two different wave lengths,
Using optics double-wavelengh technique, can detection gas simultaneously ingredient and granular size, have the characteristics that inexpensive and low-power consumption；And
And by the multi-bit ADC converter processing in photosensitive reception amplifying unit, while by the way of no labyrinth, sensor is reduced
To the Effect time of smog.Present application addresses based on Traditional photovoltaic formula smoke sensor device is at high cost, smog low-response and necessary
The problem of collocation labyrinth is detected.
Detailed description of the invention
Fig. 1 is a kind of structure of the MEMS smoke sensor device based on double UV check involved by a specific embodiment of the invention
Relation schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
The present embodiment provides a kind of MEMS smoke sensor device based on double UV check, referring to Fig.1, the smoke sensor device
It include: the light emitting diode and photosensitive reception amplifying unit of control and interface unit, driving unit, two different wave lengths；
The control and interface unit are for setting what driving unit applied the light emitting diode of two different wave lengths
Operating current；And the photosensitive signal for receiving amplifying unit and being issued is received, then it is handled, from unlike signal electricity
Smoke composition is identified in flat difference, and result is reported and submitted to ppu；
The driving unit is used to apply operating current to the light emitting diode of two different wave lengths, to light two not
The light emitting diode of co-wavelength makes it launch the light of two different wave lengths respectively；
The photosensitive light for receiving amplifying unit for receiving two different wave lengths is anti-through smoke sensor device shell respectively
Optical signal after penetrating, and signal amplification is carried out by multidigit amplifier therein, then amplified signal is sent to described
Control and interface unit.
In technical solution described in the present embodiment, by controlling, with interface unit can to set driving unit different to two
The operating current that the light emitting diode of wavelength is applied, the driving unit is according to setting value to luminous the two of two different wave lengths
Pole pipe applies operating current makes it launch two different wave lengths respectively to light the light emitting diode of two different wave lengths
Light, the light of two different wave lengths receives simultaneously after smoke sensor device SKIN RETURN by photosensitive reception amplifying unit respectively
Then amplified signal is sent to the control and interface unit by amplification, the control and interface unit are from unlike signal
Smoke composition such as aqueous vapor, greasy dirt etc. is identified in the difference of level, and result is reported and submitted to ppu.Wherein, described outer
Portion's processor can be with setting sensor AD sample frequency, the parameters such as operating current of light emitting diode, can also be from interface and control
Unit processed reads the data cached of photosensitive reception amplifying unit.
The present embodiment is according to smog responding power transfer ratio, i.e., the photosensitive light function for receiving the optical signal that amplifying unit receives
The optical power ratio of the optical signal of rate and light emitting diode, can distinguish particle size；According to the sound of two different wave length optical signals
Ratio, i.e. the response time difference of smog and non-fire alarm factor are answered, is able to distinguish different types of smog and common interference source,
To improve smoke sensor device exclusive PCR source and avoid the ability of wrong report.
In addition, preferably, in another specific embodiment of the invention, the light-emitting diodes of described two different wave lengths
Pipe is respectively blue light-emitting diode and infrared light-emitting diode.
In addition, preferably, the photosensitive reception amplifying unit includes more in another specific embodiment of the invention
Position ADC converter, the multi-bit ADC converter are used to the optical signal that the photosensitive reception amplifying unit receives being converted to number
Word signal.
In addition, preferably, in another specific embodiment of the invention, the driving unit, two different wave lengths
Light emitting diode and photosensitive reception amplifying unit be integrated in chip interior, the control and interface unit are integrated in chip interior
Or it is realized in chip exterior.
The present embodiment collects the driving unit, the light emitting diode of two different wave lengths and photosensitive reception amplifying unit
The structure design that smoke sensor device is simplified at portion in the chip can reach detection smog without labyrinth, improve response speed
Rate, and reduce costs.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (4)
1. a kind of MEMS smoke sensor device based on double UV check, which is characterized in that the smoke sensor device include: control and
Interface unit, driving unit, two different wave lengths light emitting diode and photosensitive reception amplifying unit；
The control and interface unit are for setting the work that driving unit applies the light emitting diode of two different wave lengths
Electric current；And the photosensitive signal for receiving amplifying unit and being issued is received, then it is handled, from different signal levels
Smoke composition is identified in difference, and result is reported and submitted to ppu；
The driving unit is used to apply operating current to the light emitting diode of two different wave lengths, to light two different waves
Long light emitting diode makes it launch the light of two different wave lengths respectively；
The photosensitive amplifying unit that receives is used to receive the light of two different wave lengths respectively after smoke sensor device SKIN RETURN
Optical signal, and by multidigit amplifier therein carry out signal amplification, amplified signal is then sent to the control
And interface unit.
2. a kind of MEMS smoke sensor device based on double UV check according to claim 1, which is characterized in that described two
The light emitting diode of a different wave length is respectively blue light-emitting diode and infrared light-emitting diode.
3. a kind of MEMS smoke sensor device based on double UV check according to claim 1, which is characterized in that the light
Quick reception amplifying unit includes multi-bit ADC converter, and the multi-bit ADC converter is for connecing the photosensitive reception amplifying unit
The optical signal received is converted to digital signal.
4. a kind of MEMS smoke sensor device based on double UV check according to claim 1, which is characterized in that the drive
Moving cell, the light emitting diode of two different wave lengths and photosensitive reception amplifying unit are integrated in chip interior, the control and connect
Mouth unit is integrated in chip interior or realizes in chip exterior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910320567.XA CN110148277B (en) | 2019-04-20 | 2019-04-20 | MEMS smoke sensor based on dual-wavelength detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910320567.XA CN110148277B (en) | 2019-04-20 | 2019-04-20 | MEMS smoke sensor based on dual-wavelength detection |
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| CN110148277A true CN110148277A (en) | 2019-08-20 |
| CN110148277B CN110148277B (en) | 2021-04-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630852A (en) * | 2021-03-10 | 2021-04-09 | 南京初芯集成电路有限公司 | Double-light-path smoke sensing chip and smoke sensing method |
| CN113112738A (en) * | 2021-03-12 | 2021-07-13 | 珠海格力电器股份有限公司 | Smoke sensor, smoke detector, smoke detection method and device |
| CN114913667A (en) * | 2022-05-06 | 2022-08-16 | 合肥科大立安安全技术有限责任公司 | Anti-interference sensing device for smoke in early stage of fire and anti-interference method thereof |
| CN114993894A (en) * | 2022-05-26 | 2022-09-02 | 电子科技大学 | A dual-wavelength modulated optical smoke sensor based on forward scattering |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1400658A (en) * | 1972-06-21 | 1975-07-23 | Nittan Co Ltd | Light scattering type smoke detector |
| US4857895A (en) * | 1987-08-31 | 1989-08-15 | Kaprelian Edward K | Combined scatter and light obscuration smoke detector |
| US5008559A (en) * | 1988-09-17 | 1991-04-16 | Hartwig Beyersdorf | Method for operating an optical smoke detector and optical smoke detector for the method |
| CN101656011A (en) * | 2009-05-27 | 2010-02-24 | 北京奥腾讯达科技有限公司 | Universal smoke fire detector |
| CN201527697U (en) * | 2009-05-13 | 2010-07-14 | 深圳市泛海三江电子有限公司 | Optical darkroom chamber of smoke detector |
| CN104200606A (en) * | 2014-07-18 | 2014-12-10 | 中国科学技术大学 | Point-shaped light scattering type smoke detector without optical labyrinth, and signal processing method |
| CN107516396A (en) * | 2017-09-05 | 2017-12-26 | 深圳市泰和安科技有限公司 | A kind of two-way photoelectric smoke sensor |
| WO2018138004A1 (en) * | 2017-01-25 | 2018-08-02 | Siemens Schweiz Ag | Optical smoke detection according to the two-color principle by means of a light emitting diode with an led chip for light emission and with a light converter for converting part of the emitted light into light of longer wavelength |
| JP2018124636A (en) * | 2017-01-30 | 2018-08-09 | ホーチキ株式会社 | Light extinction type sensor, sensitivity adjustment method, and inspection method |
-
2019
- 2019-04-20 CN CN201910320567.XA patent/CN110148277B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1400658A (en) * | 1972-06-21 | 1975-07-23 | Nittan Co Ltd | Light scattering type smoke detector |
| US4857895A (en) * | 1987-08-31 | 1989-08-15 | Kaprelian Edward K | Combined scatter and light obscuration smoke detector |
| US5008559A (en) * | 1988-09-17 | 1991-04-16 | Hartwig Beyersdorf | Method for operating an optical smoke detector and optical smoke detector for the method |
| CN201527697U (en) * | 2009-05-13 | 2010-07-14 | 深圳市泛海三江电子有限公司 | Optical darkroom chamber of smoke detector |
| CN101656011A (en) * | 2009-05-27 | 2010-02-24 | 北京奥腾讯达科技有限公司 | Universal smoke fire detector |
| CN104200606A (en) * | 2014-07-18 | 2014-12-10 | 中国科学技术大学 | Point-shaped light scattering type smoke detector without optical labyrinth, and signal processing method |
| WO2018138004A1 (en) * | 2017-01-25 | 2018-08-02 | Siemens Schweiz Ag | Optical smoke detection according to the two-color principle by means of a light emitting diode with an led chip for light emission and with a light converter for converting part of the emitted light into light of longer wavelength |
| JP2018124636A (en) * | 2017-01-30 | 2018-08-09 | ホーチキ株式会社 | Light extinction type sensor, sensitivity adjustment method, and inspection method |
| CN107516396A (en) * | 2017-09-05 | 2017-12-26 | 深圳市泰和安科技有限公司 | A kind of two-way photoelectric smoke sensor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630852A (en) * | 2021-03-10 | 2021-04-09 | 南京初芯集成电路有限公司 | Double-light-path smoke sensing chip and smoke sensing method |
| CN113112738A (en) * | 2021-03-12 | 2021-07-13 | 珠海格力电器股份有限公司 | Smoke sensor, smoke detector, smoke detection method and device |
| CN113112738B (en) * | 2021-03-12 | 2022-04-22 | 珠海格力电器股份有限公司 | Smoke sensor, smoke detector, smoke detection method and device |
| CN114913667A (en) * | 2022-05-06 | 2022-08-16 | 合肥科大立安安全技术有限责任公司 | Anti-interference sensing device for smoke in early stage of fire and anti-interference method thereof |
| CN114913667B (en) * | 2022-05-06 | 2023-08-11 | 合肥科大立安安全技术有限责任公司 | Fire early smoke anti-interference sensing device and anti-interference method thereof |
| CN114993894A (en) * | 2022-05-26 | 2022-09-02 | 电子科技大学 | A dual-wavelength modulated optical smoke sensor based on forward scattering |
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