CN110056526A - A kind of intelligent ventilating fan monitoring module - Google Patents
A kind of intelligent ventilating fan monitoring module Download PDFInfo
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- CN110056526A CN110056526A CN201810051442.7A CN201810051442A CN110056526A CN 110056526 A CN110056526 A CN 110056526A CN 201810051442 A CN201810051442 A CN 201810051442A CN 110056526 A CN110056526 A CN 110056526A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- General Engineering & Computer Science (AREA)
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Abstract
A kind of intelligent ventilating fan monitoring module, it is related to ventilation fan monitoring technology field.Zero curve is provided on the left of the pcb board surface of the intelligent ventilating fan monitoring module, firewire is provided with below zero curve, load output line is provided with below firewire, pcb board middle position is provided with patch power module, it is provided with patch module below patch power module, voltage module is provided on the right side of patch module, is provided with odor detection module above voltage module, it is provided with bidirectional triode thyristor module between load output line and patch module, is provided with harness on the right side of pcb board surface.After adopting the above technical scheme, small in size, installation, which is torn open, to be fallen conveniently the invention has the following beneficial effects: having many advantages, such as that high sensitivity, at low cost, the service life is long, low in energy consumption, intelligent ventilating fan can be in high volume promoted, users is suitble to use.
Description
Technical field
The present invention relates to ventilation fan monitoring technology fields, and in particular to a kind of intelligent ventilating fan monitoring module.
Background technique
On the one hand the development of the modern industry is that the mankind create great riches and the quality of life of the mankind greatly improves, another
Aspect but brings serious pollution to ecological environment, while also serious danger side of body human health.This product " intelligent ventilating fan monitors mould
The sensor of block " belongs to MOS type sensor, doped sintered by nanoscale SnO2 powder and proper catalyst
It forms, which has Ceramic Tube Type structure.When occurring micro reducing pollution gas in air, the conductance meeting of sensor
It increases.The variable quantity of conductance increases with the concentration of polluted gas and is increased.By the size of conductance variable quantity, sensor can be felt
Know the contaminated degree of air.Such as when the molecule that the second-hand flue gas of indoor appearance or cosmetics volatilize, sensor can generate electricity
Lead variation.It is controlled using this sensitivity characteristic of sensor, then by simple single-chip microcontroller, it is logical to can be achieved with intelligent starting air draft
Wind devices, to achieve the effect that Intelligent purifying room air.Such as hospital, meal/hotel, meeting room, reception room, hotel, vapour/
Railway station waiting hall, chess and card room, club etc..The skies such as secondhand smoke, cosmetics volatile molecular, fume can often occur in these occasions
Gas pollutant, intelligent air purifying system can start automatically in this case.Sensor applies also for Internet of Things, for feeling
The air quality state of certain position Internet of Things Nei is answered, and realizes the air quality monitoring within the scope of Internet of Things.
The prior art has been added to air purifier, industrial fresh air system, anion fine-purification, air conditioner fresh air rebreather etc.
On the machine of some prices.The part of functions that prior art is all used in some white goods combines, expensive,
It is not that most of customer users can receive, and prior art cannot popularize most of user, output is few, also
Installation, which is torn open, falls inconvenience.When have change of sensitivity problem；The consistency problem of poor due to production technology.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of intelligent ventilating fan monitoring module,
With high sensitivity, at low cost, the service life is long, low in energy consumption, small in size, installation is torn open and fallen conveniently, is easier bulk article, is suitble to extensively
Large user uses.
To achieve the above object, the present invention is using following technical scheme: it includes pcb board 1, patch power module 2, patch
Piece module 3, voltage module 4, odor detection module 5, bidirectional triode thyristor module 6, harness 7, zero curve 11, firewire 12, load output
Line 13,1 surface of the pcb board left side are provided with zero curve 11, firewire 12 are provided with below zero curve 11, is provided with below firewire 12 negative
Output line 13 is carried, 1 middle position of pcb board is provided with patch power module 2, is provided with patch module below patch power module 2
3, voltage module 4 is provided on the right side of patch module 3, odor detection module 5 is provided with above voltage module 4, loads output line 13
It is provided with bidirectional triode thyristor module 6 between patch module 3, is provided with harness 7 on the right side of 1 surface of pcb board；
The patch power module 2 include rectangular fuse 21, varistor 22, stamp-mounting-paper diode 23, high-voltage electrolytic capacitor 24,
I-shaped inductance 25, patch power supply 26, the first patch capacitor 27, the first Chip-R 28, electrolytic capacitor 29, patch fast diode
30, the second Chip-R 301, firewire 12, rectangular fuse 21, stamp-mounting-paper diode 23, I-shaped inductance 25 connect and are connected to patch
The end NE of piece power supply 26, varistor 22 are connected in parallel between rectangular fuse 21 and stamp-mounting-paper diode 23, high-voltage electrolytic capacitor 24
It is connected in parallel between stamp-mounting-paper diode 23 and I-shaped inductance 25,11 one end of zero curve is connect with voltage, the end FR of patch power supply 26 and side
Shape fuse 21, stamp-mounting-paper diode 23 are connected, on the vdd terminal line of patch power supply 26 on the GNT2 end line of patch power supply 26 simultaneously
Connection, and connect with patch fast diode 30, the second Chip-R 301, and, electrolytic capacitor 29 in parallel with the first Chip-R 28
It is connected in parallel between voltage and ground wire；
The patch module 3 include the second Chip-R 301, LED patch 31, patch 32, the second patch capacitor 33, three second
301 left end of Chip-R is connect with voltage, and three the second Chip-Rs 301 are connected with three LED patches 31, the second patch electricity
Resistance 301 is in parallel with LED patch 31, CRKN/TOINTOCP1.2, CRKN/ of three 31 right end of LED patch difference patches 32
TOINTOCP1.3, aINTNP1.7 connection, the vdd terminal of patch 32 connect with ground wire, and pass through the second patch capacitor 33 and voltage,
The end VCC of patch 32 connects, and P1.0INT14NINO, P1.1INT14NINO, P1.2INT14NINO of patch 32 are respectively corresponded
The connection of 20RE, FnN, AD line；
The voltage module 4 includes resistance 41, third Chip-R 42, the first patch capacitor 27, zero curve 11, firewire 12 and the end AC
Connection, the end V- are connected with third Chip-R 42, and the end V+ connects with resistance 41, three Chip-Rs 42, and connects voltage, third patch
Sheet resistance 42 is connect with 20RE, and is connect with the first patch capacitor 27, and connect with ground wire；
The odor detection module 5 includes the second Chip-R 301, the second patch capacitor 33, and voltage is electric with the second patch respectively
301 series connection of resistance, and between it is in parallel, the second Chip-R 301 is connect with ground wire, between the second Chip-R 301 there are two parallel connections
Second patch capacitor 33, and connect with the end AD；
The bidirectional triode thyristor module 6 includes bidirectional triode thyristor 61, the first Chip-R 28, and zero curve 11, firewire 12 are connect with CN,
And CN is connect by bidirectional triode thyristor 61 with zero curve 11, bidirectional triode thyristor 61 is connect by the first Chip-R 28 with FnN.
The odor detection module 5 is air quality sensor, and model TP-401T, packing forms are TO-5 metal-back.
Air quality sensor specifications parameter: model TP-401T, packing forms are TO-5 metal-back, and detection gas are secondhand smoke, respectively
Class fume, cosmetics volatile molecular, acetone, Tianna solution, board-washing water, insecticide, correction fluid etc., preferred circuit condition are circuit electricity
Pressure 5 ± 0.1VDC, load resistance 4.7K -150K Ω, heating voltage 5V heater current 60 ~ 80mA biosensor power consumption PW≤
0.45W is 0.25~0.6V to the CO typical response degree of 20ppm in 25 DEG C.
The odor detection module 5 is the molecular particle detector of Principles of Laser.Due to toxic odor, poisonous gas point are waited
Son, be all it is more much larger than air molecule, may be replaced with the molecular particle detector of Principles of Laser.
The working principle of the invention: pcb board 1, patch power module 2, patch module 3, voltage module 4, odor detection mould
Block 5, bidirectional triode thyristor module 6, harness 7, zero curve 11, firewire 12, load output line 13,1 surface of the pcb board left side are provided with
Zero curve 11 is provided with firewire 12 below zero curve 11, and load output line 13, the setting of 1 middle position of pcb board are provided with below firewire 12
There is patch power supply IC module 2, patch IC module 3 is provided with below patch power supply IC module 2, is provided on the right side of patch IC module 3
Voltage module 4 is provided with odor detection module 5 above voltage module 4, loads and is arranged between output line 13 and patch IC module 3
There is bidirectional triode thyristor module 6, is provided with harness 7 on the right side of 1 surface of pcb board.
After adopting the above technical scheme, the invention has the following beneficial effects: intelligent ventilating fan monitoring module have high sensitivity, at
The advantages that this is low, the service life is long, low in energy consumption, it is a wide spectrum gas sensor intelligent object, to many micro reducing gas
(or micro- toxic gas molecules) are very sensitive, these gas molecule types include, secondhand smoke (such as CO), alcohol gas (alcohol),
Cosmetics volatile molecular, acetone, Tianna solution, board-washing water, insecticide, correction fluid, benzene, formaldehyde etc..Such as hospital, meal/hotel, meeting
Discuss room, reception room, hotel, vapour/railway station waiting hall, chess and card room, club etc..These occasions secondhand smoke can often occur, change
The air pollutants such as cosmetic volatile molecular, fume, intelligent air purifying system can start automatically in this case；Intelligence is changed
Gas fan monitoring module is torn open with small in size, installation and is fallen conveniently, is easier bulk article, obtains and promoted intelligent ventilating fan, price
Suitable major part user uses, while solving the problems, such as that traditional ventilation fan is unable to intellectual monitoring air quality quality；It is developing
In the process, since sensor is that have a sensitivity with the passage for using the time, sensitivity can change；This product software is using dynamic
State scanning voltage reference value, must just solve the problems, such as the change of sensitivity of smell sensor；Intelligent ventilating fan can be in high volume promoted,
It is suitble to users to use.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the schematic diagram of patch power module 2 of the present invention；
Fig. 3 is the schematic diagram of patch module 3 of the present invention；
Fig. 4 is the schematic diagram of voltage module 4 of the present invention；
Fig. 5 is the schematic diagram of odor detection module 5 of the present invention；
Fig. 6 is the schematic diagram of bidirectional triode thyristor module 6 of the present invention；
Fig. 7 is the structural schematic diagram of harness 7 of the present invention；
Description of symbols: pcb board 1, patch power module 2, patch module 3, voltage module 4, odor detection module 5, two-way
Silicon controlled module 6, harness 7, zero curve 11, firewire 12, load output line 13.
Specific embodiment
Referring to shown in Fig. 1-Fig. 7, present embodiment the technical solution adopted is that: intelligent ventilating fan monitoring module, it
Include pcb board 1, patch power module 2, patch module 3, voltage module 4, odor detection module 5, bidirectional triode thyristor module 6, line
Beam 7, zero curve 11, firewire 12, load output line 13,1 surface of the pcb board left side are provided with zero curve 11, are arranged below zero curve 11
There is firewire 12, load output line 13 is provided with below firewire 12,1 middle position of pcb board is provided with patch power supply IC module 2, pastes
It is provided with patch IC module 3 below piece power supply IC module 2, is provided with voltage module 4 on the right side of patch IC module 3, on voltage module 4
Side is provided with odor detection module 5, loads and is provided with bidirectional triode thyristor module 6, PCB between output line 13 and patch IC module 3
Harness 7 is provided on the right side of 1 surface of plate.
The patch power module 2 includes rectangular fuse 21, varistor 22, stamp-mounting-paper diode 23, high-pressure electrolysis electricity
It is quick to hold 24, I-shaped inductance 25, patch power supply 26, the first patch capacitor 27, the first Chip-R 28, electrolytic capacitor 29, patch
Diode 30, the second Chip-R 301, firewire 12, rectangular fuse 21, stamp-mounting-paper diode 23, I-shaped inductance 25 are connected and are connected
It connects at the end NE of patch power supply 26, varistor 22 is connected in parallel between rectangular fuse 21 and stamp-mounting-paper diode 23, high-pressure electrolysis
Capacitor 24 is connected in parallel between stamp-mounting-paper diode 23 and I-shaped inductance 25, and 11 one end of zero curve is connect with voltage, the FR of patch power supply 26
End connect with rectangular fuse 21, stamp-mounting-paper diode 23, on the vdd terminal line of patch power supply 26 with the GNT2 end line of patch power supply 26
Upper parallel connection, and connect with patch fast diode 30, the second Chip-R 301, and in parallel with the first Chip-R 28, electrolysis electricity
Hold 29 to be connected in parallel between voltage and ground wire.
The patch module 3 include the second Chip-R 301, LED patch 31, patch 32, the second patch capacitor 33, three
Second Chip-R, 301 left end is connect with voltage, and three the second Chip-Rs 301 are connected with three LED patches 31, the second patch
Sheet resistance 301 is in parallel with LED patch 31, CRKN/TOINTOCP1.2, CRKN/ of three 31 right end of LED patch difference patches 32
TOINTOCP1.3, aINTNP1.7 connection, the vdd terminal of patch 32 connect with ground wire, and pass through the second patch capacitor 33 and voltage,
The end VCC of patch 32 connects, and P1.0INT14NINO, P1.1INT14NINO, P1.2INT14NINO of patch 32 are respectively corresponded
The connection of 20RE, FnN, AD line.
The voltage module 4 include resistance 41, third Chip-R 42, the first patch capacitor 27, zero curve 11, firewire 12 with
The connection of the end AC, the end V- are connected with third Chip-R 42, and the end V+ connects with resistance 41, three Chip-Rs 42, and connects voltage, the
Three Chip-Rs 42 are connect with 20RE, and are connect with the first patch capacitor 27, and connect with ground wire.
The odor detection module 5 includes the second Chip-R 301, the second patch capacitor 33, and voltage is pasted with second respectively
Sheet resistance 301 is connected, and between it is in parallel, the second Chip-R 301 connect with ground wire, is parallel between the second Chip-R 301
Two the second patch capacitors 33, and connect with the end AD.
The bidirectional triode thyristor module 6 includes bidirectional triode thyristor 61, the first Chip-R 28, zero curve 11, firewire 12 and CN
Connection, and CN is connect by bidirectional triode thyristor 61 with zero curve 11, bidirectional triode thyristor 61 is connected by the first Chip-R 28 and FnN
It connects.
The odor detection module 5 is air quality sensor, and model TP-401T, packing forms are TO-5 metal-back.
Air quality sensor specifications parameter: model TP-401T, packing forms are TO-5 metal-back, and detection gas are secondhand smoke, respectively
Class fume, cosmetics volatile molecular, acetone, Tianna solution, board-washing water, insecticide, correction fluid etc., preferred circuit condition are circuit electricity
Pressure 5 ± 0.1VDC, load resistance 4.7K -150K Ω, heating voltage 5V heater current 60 ~ 80mA biosensor power consumption PW≤
0.45W is 0.25~0.6V to the CO typical response degree of 20ppm in 25 DEG C.
The odor detection module 5 is the molecular particle detector of Principles of Laser.Due to toxic odor, poisonous gas point are waited
Son, be all it is more much larger than air molecule, may be replaced with the molecular particle detector of Principles of Laser.
The working principle of the invention: pcb board 1, patch power module 2, patch module 3, voltage module 4, odor detection mould
Block 5, bidirectional triode thyristor module 6, harness 7, zero curve 11, firewire 12, load output line 13,1 surface of the pcb board left side are provided with
Zero curve 11 is provided with firewire 12 below zero curve 11, and load output line 13, the setting of 1 middle position of pcb board are provided with below firewire 12
There is patch power supply IC module 2, patch IC module 3 is provided with below patch power supply IC module 2, is provided on the right side of patch IC module 3
Voltage module 4 is provided with odor detection module 5 above voltage module 4, loads and is arranged between output line 13 and patch IC module 3
There is bidirectional triode thyristor module 6, is provided with harness 7 on the right side of 1 surface of pcb board.
After adopting the above technical scheme, the invention has the following beneficial effects: intelligent ventilating fan monitoring module of the invention has spirit
The advantages that sensitivity is high, at low cost, the service life is long, low in energy consumption, it is a wide spectrum gas sensor intelligent object, to many micro
Reducing gas (or micro- toxic gas molecules) is very sensitive, these gas molecule types include secondhand smoke (such as CO), alcohol gas
(alcohol), cosmetics volatile molecular, acetone, Tianna solution, board-washing water, insecticide, correction fluid, benzene, formaldehyde etc..Such as hospital, meal/
Hotel, meeting room, reception room, hotel, vapour/railway station waiting hall, chess and card room, club etc..These occasions can often occur two
The air pollutants such as hand cigarette, cosmetics volatile molecular, fume, intelligent air purifying system can open automatically in this case
It is dynamic；Intelligent ventilating fan monitoring module is torn open with small in size, installation and is fallen conveniently, and bulk article is easier, and obtains and has promoted intelligent change
Gas fan, properly most of user uses price, while solving traditional ventilation fan and be unable to intellectual monitoring air quality quality and asking
Topic；In the process of development, since sensor is that have a sensitivity with the passage for using the time, sensitivity can change；This product
Software uses dynamic scan voltage reference value, must just solve the problems, such as the change of sensitivity of smell sensor；It can in high volume promote
Intelligent ventilating fan is suitble to users to use.
The above is only used to illustrate the technical scheme of the present invention and not to limit it, and those of ordinary skill in the art are to this hair
The other modifications or equivalent replacement that bright technical solution is made, as long as it does not depart from the spirit and scope of the technical scheme of the present invention,
It is intended to be within the scope of the claims of the invention.
Claims (3)
1. a kind of intelligent ventilating fan monitoring module, it is characterised in that: it includes pcb board (1), patch power module (2), patch mould
Block (3), voltage module (4), odor detection module (5), bidirectional triode thyristor module (6), harness (7), zero curve (11), firewire
(12), output line (13) are loaded, is provided with zero curve (11) on the left of pcb board (1) surface, be provided with firewire below zero curve (11)
(12), load output line (13) is provided with below firewire (12), pcb board (1) middle position is provided with patch power module (2),
It is provided with patch module (3) below patch power module (2), is provided with voltage module (4), voltage-mode on the right side of patch module (3)
It is provided with odor detection module (5), is provided between load output line (13) and patch module (3) two-way controllable above block (4)
Silicon module (6), pcb board (1) surface right side are provided with harness (7)；
The patch power module (2) includes rectangular fuse (21), varistor (22), stamp-mounting-paper diode (23), high-voltage electricity
Solve capacitor (24), I-shaped inductance (25), patch power supply (26), the first patch capacitor (27), the first Chip-R (28), electrolysis electricity
Hold (29), patch fast diode (30), the second Chip-R (301), firewire (12), rectangular fuse (21), two pole of patch
Pipe (23), I-shaped inductance (25) connect and are connected to the end NE of patch power supply (26), and varistor (22) is connected in parallel on rectangular insurance
Between silk (21) and stamp-mounting-paper diode (23), high-voltage electrolytic capacitor (24) is connected in parallel on stamp-mounting-paper diode (23) and I-shaped inductance (25)
Between, zero curve (11) one end is connect with voltage, the end FR of patch power supply (26) and rectangular fuse (21), stamp-mounting-paper diode (23)
Series connection, it is in parallel on the GNT2 end line of patch power supply (26) on the vdd terminal line of patch power supply (26), and with patch fast diode
(30), the second Chip-R (301) is connected, and in parallel with the first Chip-R (28), electrolytic capacitor (29) be connected in parallel on voltage and
Between ground wire；
The patch module (3) includes the second Chip-R (301), LED patch (31), patch (32), the second patch capacitor
(33), three the second Chip-R (301) left ends are connect with voltage, and three the second Chip-Rs (301) and three LED patches
(31) it connects, the second Chip-R (301) is in parallel with LED patch (31), and three LED patch (31) right ends distinguish patch (32)
CRKN/TOINTOCP1.2, CRKN/TOINTOCP1.3, aINTNP1.7 connection, the vdd terminal of patch (32) are connect with ground wire, and
It is connect by the second patch capacitor (33) with the end VCC of voltage, patch (32), the P1.0INT14NINO of patch (32),
P1.1INT14NINO, P1.2INT14NINO respectively correspond the connection of 20RE, FnN, AD line；
The voltage module (4) includes resistance (41), third Chip-R (42), the first patch capacitor (27), zero curve (11), fire
Line (12) is connect with the end AC, and the end V- is connected with third Chip-R (42), and the end V+ and resistance (41), three Chip-Rs (42) are gone here and there
Connection, and voltage is connected, third Chip-R (42) is connect with 20RE, and is connect with the first patch capacitor (27), and is connected with ground wire
It connects；
The odor detection module (5) includes the second Chip-R (301), the second patch capacitor (33), and voltage is respectively with second
Chip-R (301) series connection, and between it is in parallel, the second Chip-R (301) is connect with ground wire, the second Chip-R (301) it
Between it is in parallel there are two the second patch capacitor (33), and connect with the end AD；
The bidirectional triode thyristor module (6) includes bidirectional triode thyristor (61), the first Chip-R (28), zero curve (11), firewire
(12) it is connect with CN, and CN is connect by bidirectional triode thyristor (61) with zero curve (11), bidirectional triode thyristor (61) passes through the first patch
Resistance (28) is connect with FnN.
2. a kind of intelligent ventilating fan monitoring module according to claim 1, it is characterised in that: the odor detection module
It (5) is air quality sensor, model TP-401T, packing forms are TO-5 metal-back.
3. a kind of intelligent ventilating fan monitoring module according to claim 1, it is characterised in that: the odor detection module
It (5) is the molecular particle detector of Principles of Laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810051442.7A CN110056526A (en) | 2018-01-19 | 2018-01-19 | A kind of intelligent ventilating fan monitoring module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810051442.7A CN110056526A (en) | 2018-01-19 | 2018-01-19 | A kind of intelligent ventilating fan monitoring module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110056526A true CN110056526A (en) | 2019-07-26 |
Family
ID=67315264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810051442.7A Pending CN110056526A (en) | 2018-01-19 | 2018-01-19 | A kind of intelligent ventilating fan monitoring module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110056526A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03109073A (en) * | 1989-09-21 | 1991-05-09 | Kanebo Ltd | Exhalation of odor and apparatus used therefor |
| CN201844992U (en) * | 2010-11-01 | 2011-05-25 | 柏建荣 | Formaldehyde detection controller |
| CN106032805A (en) * | 2015-03-13 | 2016-10-19 | 北京瑞腾格润环保科技有限公司 | Intelligent exhaust fan controlling method |
| JP6076024B2 (en) * | 2012-10-17 | 2017-02-08 | トヨタホーム株式会社 | Indoor environment monitoring system |
| CN206017230U (en) * | 2016-08-31 | 2017-03-15 | 艾力·阿山 | Harmful gass automatic exhaust fan |
-
2018
- 2018-01-19 CN CN201810051442.7A patent/CN110056526A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03109073A (en) * | 1989-09-21 | 1991-05-09 | Kanebo Ltd | Exhalation of odor and apparatus used therefor |
| CN201844992U (en) * | 2010-11-01 | 2011-05-25 | 柏建荣 | Formaldehyde detection controller |
| JP6076024B2 (en) * | 2012-10-17 | 2017-02-08 | トヨタホーム株式会社 | Indoor environment monitoring system |
| CN106032805A (en) * | 2015-03-13 | 2016-10-19 | 北京瑞腾格润环保科技有限公司 | Intelligent exhaust fan controlling method |
| CN206017230U (en) * | 2016-08-31 | 2017-03-15 | 艾力·阿山 | Harmful gass automatic exhaust fan |
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Application publication date: 20190726 |