CN112747431A - Air purifier control method and device - Google Patents
Air purifier control method and device Download PDFInfo
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- CN112747431A CN112747431A CN202110059046.0A CN202110059046A CN112747431A CN 112747431 A CN112747431 A CN 112747431A CN 202110059046 A CN202110059046 A CN 202110059046A CN 112747431 A CN112747431 A CN 112747431A
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- air
- threshold value
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- air purifier
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a control method and a device of an air purifier, wherein the control method comprises the following steps: detecting air parameters in real time; when the detected air parameter reaches the second threshold value for the first time, comparing the detected air parameter with the first threshold value and the second threshold value in real time, wherein the first threshold value is lower than the second threshold value; if the detected air parameter is higher than the second threshold value and the change of the air parameter is in an ascending trend, the air purifier is started; and if the detected air parameter is lower than the first threshold value and the change of the air parameter is in a descending trend, closing the air purifier. So can be accurate with air parameter control between first threshold and second threshold, maintain the air quality, can avoid again that air purifier opens automatically and closes too frequently and cause the damage.
Description
Technical Field
The invention belongs to the technical field of air purifiers, and particularly relates to a control method and device of an air purifier.
Background
CN107917514A discloses a method for controlling an air purifier by an intelligent sound, the intelligent sound comprises an infrared sensor for detecting infrared induction signals of human body and an air quality sensor for detecting air quality, the method for controlling the air purifier by the intelligent sound comprises: the intelligent sound equipment acquires air quality parameters measured by an air quality sensor, wherein the air quality parameters comprise at least one of PM2.5 concentration, formaldehyde content and TVOC content; when the air quality exceeds a preset threshold value, the intelligent sound judges whether the infrared sensor detects a human body infrared sensing signal or not, and if so, the intelligent sound controls the air purifier to be started; if not, the intelligent sound sends the air quality parameter to the mobile terminal bound with the intelligent sound, in the technical scheme provided by the invention, when the air quality parameter exceeds a preset threshold value, if a person is indoors, the intelligent sound automatically turns on the air purifier without manual regulation, but the air purifier cannot be automatically turned off after being turned on, if the air quality is lower than the preset threshold value, the air purifier is turned off, so that the air purifier is turned on and off too frequently, and the reason is that the air quality parameter is changeable under the influence of the external environment, so the existing control method of the air purifier is not good.
Disclosure of Invention
Technical problem to be solved
The invention provides a control method and a control device of an air purifier, which aim to overcome the technical defect that the air purifier is opened and closed too frequently in the prior art.
(II) technical scheme
In order to solve the technical problem, the invention provides a control method of an air purifier, which comprises the following steps:
detecting air parameters in real time;
when the detected air parameter reaches the second threshold value for the first time, comparing the detected air parameter with the first threshold value and the second threshold value in real time, wherein the first threshold value is lower than the second threshold value;
if the detected air parameter is higher than the second threshold value and the change of the air parameter is in an ascending trend, the air purifier is started;
and if the detected air parameter is lower than the first threshold value and the change of the air parameter is in a descending trend, closing the air purifier.
Wherein, the real-time detection of air parameters comprises: and detecting air parameters in real time through a plurality of air detection sensors.
Wherein, when the air parameter that detects reaches the second threshold value for the first time, compare the air parameter that detects with first threshold value, second threshold value in real time, include: and if the air parameter detected by any one air detection sensor reaches the second threshold value for the first time, comparing all the detected air parameters with the first threshold value and the second threshold value respectively in real time.
Wherein, if the air parameter that detects is higher than the second threshold value and air parameter's change opens air purifier when ascending trend, include: and if the air parameter detected by any one air detection sensor is higher than the second threshold value and the change of the air parameter is in an ascending trend, starting the air purifier.
Wherein, if the air parameter that detects is less than first threshold and air parameter's change is when falling trend and close air purifier, include: and if the air parameter detected by any one air detection sensor is lower than the first threshold value and the change of the air parameter is in a descending trend, closing the air purifier.
Wherein the air parameter may be a concentration of particles in air.
Wherein, still include:
detecting air outlet parameters of the air purifier when the air purifier is started in real time;
comparing the detected air outlet parameter with a third valve value in real time;
if the detected air outlet parameter is higher than the third threshold value, a reminding message for replacing the filter screen of the air purifier is sent.
Wherein, the air outlet parameter can be air outlet speed.
Wherein, the air outlet parameter can be air outlet pressure.
The present invention also provides an air cleaner control apparatus, comprising:
the detection unit is used for detecting air parameters in real time;
the comparison unit is used for comparing the detected air parameter with a first threshold value and a second threshold value in real time when the detected air parameter reaches the second threshold value for the first time, wherein the first threshold value is lower than the second threshold value;
and the control unit is used for opening the air purifier if the detected air parameter is higher than the second threshold value and the change of the air parameter is in an ascending trend, and closing the air purifier if the detected air parameter is lower than the first threshold value and the change of the air parameter is in a descending trend.
(III) advantageous effects
Compared with the prior art, the air purifier is opened when the detected air parameter is higher than the second threshold value and the change of the air parameter is in an ascending trend, and is closed when the detected air parameter is lower than the first threshold value and the change of the air parameter is in a descending trend, so that the air parameter can be accurately controlled between the first threshold value and the second threshold value, the air quality is maintained, and the air purifier can be prevented from being damaged due to too frequent automatic opening and closing.
Drawings
Fig. 1 is a schematic view of a control method of an air cleaner of the present invention.
Fig. 2 is a schematic view of an air cleaner control apparatus of the present invention.
Fig. 3 is a schematic structural view of a double-layer filter screen structure interlocked with each other in the up-down direction according to the present invention.
Fig. 4 is a schematic exploded view of the structure of a double layer filter structure interlocked one above the other according to the present invention.
Fig. 5 is a partial cross-sectional view of a double layer screen construction of the present invention interlocked one above the other.
Fig. 6 is a schematic view of the construction of the locking device of the present invention.
Fig. 7 is a schematic cross-sectional view of the structure of a double-layered filter structure according to the present invention interlocked with each other.
Fig. 8 is a schematic structural diagram of the filter screen of the present invention.
Description of reference numerals: 1. a main body; 2. a filter screen; 3. a locking device; 4. an upper and lower interlock device; 5. a pressure spring; 11. a channel; 12. a filter screen mounting hole; 13. a locking device mounting groove; 14. a first cover plate; 15. an upper and lower interlock mounting groove; 16. a second cover plate; 21. a pin hole; 22. a lock hole; 23. a filter screen main body; 24. the side of the filter screen; 31. an adjusting block; 32. a connecting rod; 33. a bolt; 34. a first return spring; 41. an interlock lever; 42. a second return spring; 121. a pressure spring mounting hole; 131. an adjustment groove; 132. a movable groove; 133. a connecting rod slot; 134. a bolt movable hole; 141. a sliding groove; 151. a connecting rod movable slot; 152. a mandril movable hole; 311. a movable rod; 312. adjusting a rod; 331. a first inclined surface; 411. a connecting rod; 412. a top rod; 4121. a second inclined surface.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The control method of the air purifier of the embodiment of the invention, as shown in figure 1, comprises the following steps:
and S1, detecting the air parameters in real time.
And S2, when the detected air parameter reaches the second threshold value for the first time, comparing the detected air parameter with the first threshold value and the second threshold value in real time, wherein the first threshold value is lower than the second threshold value.
And S3, if the detected air parameter is higher than the second threshold value and the change of the air parameter is in an ascending trend, starting the air purifier.
And S4, if the detected air parameter is lower than the first threshold value and the change of the air parameter is in a descending trend, closing the air purifier.
The air purifier is opened when the detected air parameter is higher than the second threshold value and the change of the air parameter is in an ascending trend, and is closed when the detected air parameter is lower than the first threshold value and the change of the air parameter is in a descending trend, so that the air parameter can be accurately controlled between the first threshold value and the second threshold value, the air quality is maintained, and the air purifier is prevented from being damaged due to too frequent automatic opening and closing. Specifically, in this embodiment, a plurality of air detection sensors detect an air parameter such as a particle concentration in air in real time, the plurality of air detection sensors are dispersedly disposed and independently detect the air parameter at a disposed location, if the air parameter detected by any one of the air detection sensors reaches a second threshold for the first time, it is indicated that the air parameter may not meet the requirement, at this time, all the detected air parameters are respectively compared with the first threshold and the second threshold in real time, if the air parameter detected by any one of the air detection sensors is higher than the second threshold and a change of the air parameter is in an upward trend, it is indicated that the air parameter is about to fail to meet the requirement, at this time, the air purifier is turned on to achieve air purification, and if the air parameter detected by any one of the air detection sensors is lower than the first threshold and a change of the air parameter is in a downward trend, it is indicated that the air parameter, the air purifier is turned off at this time. Correspondingly, the air purifier control device of the present embodiment includes, as shown in fig. 2: the air purifier comprises a detection unit, a comparison unit and a control unit, wherein the detection unit is used for detecting air parameters in real time, the comparison unit is used for comparing the detected air parameters with a first threshold value and a second threshold value in real time when the detected air parameters reach the second threshold value for the first time, the control unit is used for opening the air purifier when the detected air parameters are higher than the second threshold value and the change of the air parameters is in an ascending trend, and closing the air purifier when the detected air parameters are lower than the first threshold value and the change of the air parameters is in a descending trend. The principle of the air purifier control device is the same as that of the air purifier control method, and the description is omitted.
Meanwhile, the control method of the air purifier further comprises the following steps: the air outlet parameters of the air purifier when being opened are detected in real time, for example, the air outlet speed or the air outlet pressure, the detected air outlet parameters are compared with a third valve in real time, if the detected air outlet parameters are higher than the third valve, the fact that dust on the filter screen is more indicates, better air purification can not be carried out on the air, and then reminding information for replacing the filter screen of the air purifier is sent out.
The filter screen is arranged on a filter device of the air purifier, the filter device of the air purifier is positioned on an air outlet channel of the air purifier, the structure of the filter device of the air purifier is a double-layer filter screen structure which is interlocked up and down as shown in figures 3 and 4, and the double-layer filter screen structure which is interlocked up and down comprises a main body 1, a filter screen 2, a locking device 3 and an upper and lower interlocking device 4; the main body 1 is provided with a vertically through channel 11, the front surface of the main body 1 is provided with two filter screen mounting holes 12 which are matched with the filter screen 2 and are distributed vertically in parallel, and the filter screen mounting holes 12 are matched with the radial through channel 11; the locking device 3 and the up-down interlocking device 4 are arranged on the side surface of the main body 1 in a matching way; the two filter screens 2 are arranged in total, and the two filter screens 2 are respectively arranged in a filter screen mounting hole 12 in a matching way and isolate a channel 11; the locking device 3 is matched with and locks and fixes the filter screen 2; the up-down interlock means 4 can lock one filter net 2 when the other filter net 2 is detached from the main body 1. By adopting the structure, one filter screen is locked on the main body in the process of dismounting and replacing the filter screens through interlocking of the two filter screens, so that the situation that the filter screens are dismounted and forgotten to be remounted can be effectively avoided, at least one filter screen is always arranged in the main body, and the normal operation of the filtering effect is ensured.
As shown in fig. 3, 4 and 5, in the present embodiment, the locking device 3 includes an adjusting block 31, a connecting rod 32, a bolt 33 and a first return spring 34; the upper and lower surfaces of the adjusting block 31 extend out of movable rods 311 which are coaxially and symmetrically distributed; a locking device mounting groove 13 and a first cover plate 14 covering the locking device mounting groove 13 are formed on the side surface of the main body 1; the locking device mounting groove 13 comprises an adjusting groove 131, a movable groove 132, a connecting rod groove 133 and a bolt moving hole 134, wherein the adjusting groove 131 is used for enabling the adjusting block 31 to slide up and down in the middle, the movable groove 132 is vertically and symmetrically communicated with the adjusting groove 131 and matched with the movable rod 311, the connecting rod groove 133 is vertically and symmetrically communicated with the movable groove 132 and used for enabling the connecting rod 32 to move, and the bolt moving hole 134 is matched with the bolt 33 and simultaneously communicated with the connecting rod groove 133 and the filter screen; the side of the filter screen 2 is provided with a bolt hole 21 which is matched with the bolt 33 and is matched and corresponding to the bolt movable hole 134.
The connecting rod 32, the bolt 33 and the first return spring 34 are respectively provided with two pieces; the upper and lower movable rods 311 of the adjusting block 31 are respectively hinged with a connecting rod 32 in a matching way, the tail end of each connecting rod 32 is respectively hinged with a bolt 33 in a matching way, and the first return spring 34 is sleeved on the movable rods 311 in a matching way; the locking device 3 is arranged in the locking device mounting groove 13 in a matching way and covers the first cover plate 14; the adjusting block 31 is arranged in the adjusting groove 131 in a matching mode, the first return spring 34 is arranged between the end face of the adjusting groove 131 and the adjusting block 31 in a matching mode, the movable rod 311 is arranged in the movable groove 132 in a matching mode, the connecting rod 32 is arranged in the connecting groove 133 in a matching mode, and the bolt 33 penetrates through the bolt movable hole 134 and then is inserted into the bolt hole 21 in the filter screen 2 in a matching mode.
When the locking device 3 is in a free state, under the action of the two first return springs 34, the locking device 3 is in a vertically parallel and symmetrical state in the locking device mounting groove 13 of the main body 1, and parts of the two bolts 33 enter the bolt holes 21 of the two filter screens 2, so that the two filter screens 2 are both in a locking state; when the adjusting block 31 is shifted downwards, the locking device 3 overcomes the first return spring 34 at the lower end to move downwards integrally, the bolt 33 at the upper end is separated from the bolt hole 21 of the upper filter screen 2, so that the upper filter screen 2 can be taken out, and the bolt 33 at the lower end is deeper into the bolt hole 21 of the lower filter screen 2, so that the lower filter screen 2 is ensured to be in a locking state; on the contrary, when the adjusting block 31 is shifted upwards, the lower filter screen 2 can be taken out, and the upper filter screen 2 is in a locking state.
As shown in fig. 4, 5 and 6, in the present embodiment, the adjusting rod 312 is disposed on the side surface of the adjusting block 31, and the first cover plate 14 is provided with a sliding groove 141 for the adjusting rod 312 to slide up and down; the adjustment lever 312 of the adjustment block 31 protrudes from the sliding groove 141 of the first cover plate 14. The invention can stir the adjusting block 31 to move up and down through the adjusting rod 312 exposed at the side of the main body 1, thereby achieving the purpose of controlling the locking state of the upper and lower layers of filter screens 2, and being simple and practical.
As shown in fig. 6, in the present embodiment, the tip end of the latch 33 is provided with a first inclined surface 331, and the first inclined surface 331 faces the opening direction of the filter mounting hole 12. By adopting the structure, when the filter screen 2 is inserted into the filter screen mounting hole 12, the bolt 33 can be jacked open to be mounted in place through the first inclined surface 331, and the bolt 33 cannot be automatically separated when inserted into the bolt hole 21 of the filter screen 2.
As shown in fig. 4 and 7, in the present embodiment, the up-down interlock device 4 includes an interlock lever 41 and a second return spring 42; the interlock rod 41 comprises a vertical connecting rod 411 and top rods 412 which are symmetrically distributed at two ends of the connecting rod 411 and are crosswise connected with the connecting rod 411; an up-down interlocking device mounting groove 15 and a second cover plate 16 covering the up-down interlocking device mounting groove 15 are formed on two sides of the main body 1; the upper and lower interlocking device mounting groove 15 comprises a connecting rod movable groove 151 in the middle for lateral movement of the connecting rod 411 and a push rod movable hole 152 which is matched with the push rod 412 and simultaneously penetrates through the connecting rod movable groove 151 and the filter screen mounting hole 12; the side edge of the filter screen 2 is provided with a lock hole 22 matched with the top rod 412; the interlocking rod 41 is installed in the upper and lower interlocking device installation groove 15 in a matching manner, the connecting rod 411 is installed in the connecting rod movable groove 151 in a matching manner, the front end of the ejector rod 412 is inserted into the ejector rod movable hole 152 in a matching manner, the rear end of the connecting rod 411 is sleeved with the second return spring 42 in a matching manner, and the second cover plate 16 is covered on the upper and lower interlocking device installation groove 15 in a matching manner; the second return spring 42 is matched and acts between the connecting rod 411 and the second cover plate 16; two sides of the main body 1 are respectively provided with an up-down interlocking device 4, a top rod 412 at the upper end of one up-down interlocking device 4 is matched with the lock hole 22 corresponding to the side edge of the upper-layer filter screen 2, and a top rod 412 at the lower end of the other up-down interlocking device 4 is matched with the lock hole 22 corresponding to the side edge of the lower-layer filter screen; the second inclined surface 4121 is provided at the front end of the jack 412, and the second inclined surface 4121 faces the opening direction of the filter attachment hole 12.
When two filter screens 2 are inserted into the filter screen mounting holes 12 in place, one ejector rod 412 on the interlocking rod 41 is pushed open by one filter screen 2, so that the other ejector rod 412 on the interlocking rod 41 cannot be inserted into the lock hole 22 of the other filter screen 2, and the two filter screens 2 are not locked by the up-down interlocking device 4; when a filter screen 2 is taken out, the interlocking rod 41 pushed away by the filter screen 2 rebounds under the restoring force of the second restoring spring 42, so that a top rod 412 of the interlocking rod 41 is inserted into the lock hole 22 of another filter screen 2, the purpose of locking the filter screen 2 which is not taken out is achieved, two filter screens 2 of the product can not be taken out simultaneously, and one filter screen 2 is required to play a role in filtering.
As shown in fig. 4, in this embodiment, a pressure spring mounting hole 121 is formed at the bottom end of the filter screen mounting hole 12, a pressure spring 5 is fixedly connected in the pressure spring mounting hole 121, and the pressure spring 5 is matched to act between the bottom end of the pressure spring mounting hole 121 and the filter screen 2. The structure is added, when the bolt 33 is separated from the bolt hole 21 of the filter screen 2, the filter screen 2 can be ejected out of the filter screen mounting hole 12 of the main body 1 by utilizing the restoring force of the spring 5, the filter screen 2 is convenient to detach, and the structure is simple and practical.
As shown in fig. 8, in the present embodiment, the filter screen 2 includes a filter screen main body 23, and filter screen side edges 24 fixedly connected to two sides of the filter screen main body 23; the bolt hole 21 and the lock hole 22 are arranged on the side edge 24 of the filter screen, and the bolt hole 21 and the lock hole 22 are horizontally staggered on the side edge 24 of the filter screen, so that the bolt 33 is prevented from being inserted into the lock hole 22 by mistake.
In the embodiment, the filter screen sides 24 are fixedly connected to two sides of the filter screen main body 23 through a magic tape structure, the filter screen main body 23 can be a conventional filter screen, and the two filter screen sides 24 can be of the same structure, so that the mass production is convenient, and the filter screen is economical and practical; moreover, the filter screen side 24 and the filter screen main body 23 are quite convenient to disassemble and assemble. Wherein, the filter screen side 24 and the filter screen main body 23 can be fixedly connected through other detachable structures, such as a clamping structure, or fixed by screw connection.
In conclusion, the air purifier filtering device adopts the interlocking structure between the two filtering nets, so that one filtering net must be locked on the main body in the process of disassembling, assembling and replacing the filtering nets, the condition that the filtering net is disassembled and forgotten to be re-assembled can be effectively avoided, at least one filtering net always exists in the main body, and the normal operation of the filtering effect is ensured.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (10)
1. A control method of an air purifier is characterized by comprising the following steps:
detecting air parameters in real time;
when the detected air parameter reaches the second threshold value for the first time, comparing the detected air parameter with the first threshold value and the second threshold value in real time, wherein the first threshold value is lower than the second threshold value;
if the detected air parameter is higher than the second threshold value and the change of the air parameter is in an ascending trend, the air purifier is started;
and if the detected air parameter is lower than the first threshold value and the change of the air parameter is in a descending trend, closing the air purifier.
2. The air purifier control method of claim 1, wherein the detecting the air parameter in real time comprises: and detecting air parameters in real time through a plurality of air detection sensors.
3. The air purifier control method of claim 2, wherein comparing the sensed air parameter to the first threshold value and the second threshold value in real time upon the sensed air parameter initially reaching the second threshold value comprises: and if the air parameter detected by any one air detection sensor reaches the second threshold value for the first time, comparing all the detected air parameters with the first threshold value and the second threshold value respectively in real time.
4. The air cleaner control method of claim 3, wherein the turning on the air cleaner if the detected air parameter is higher than the second threshold and the change in the air parameter is in an increasing trend comprises: and if the air parameter detected by any one air detection sensor is higher than the second threshold value and the change of the air parameter is in an ascending trend, starting the air purifier.
5. The air purifier control method of claim 4, wherein turning off the air purifier if the detected air parameter is below the first threshold and the change in the air parameter is in a downward trend comprises: and if the air parameter detected by any one air detection sensor is lower than the first threshold value and the change of the air parameter is in a descending trend, closing the air purifier.
6. The air purifier control method according to claim 1, wherein the air parameter may be a particle concentration in air.
7. The air purifier control method according to claim 1, further comprising:
detecting air outlet parameters of the air purifier when the air purifier is started in real time;
comparing the detected air outlet parameter with a third valve value in real time;
if the detected air outlet parameter is higher than the third threshold value, a reminding message for replacing the filter screen of the air purifier is sent.
8. The air purifier control method according to claim 7, wherein the outlet air parameter is an outlet air speed.
9. The air purifier control method according to claim 7, wherein the outlet air parameter is outlet air pressure.
10. An air purifier control apparatus, comprising:
the detection unit is used for detecting air parameters in real time;
the comparison unit is used for comparing the detected air parameter with a first threshold value and a second threshold value in real time when the detected air parameter reaches the second threshold value for the first time, wherein the first threshold value is lower than the second threshold value;
and the control unit is used for opening the air purifier if the detected air parameter is higher than the second threshold value and the change of the air parameter is in an ascending trend, and closing the air purifier if the detected air parameter is lower than the first threshold value and the change of the air parameter is in a descending trend.
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| CN202110059046.0A CN112747431B (en) | 2021-01-17 | 2021-01-17 | Air purifier control method and device |
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| CN202110059046.0A CN112747431B (en) | 2021-01-17 | 2021-01-17 | Air purifier control method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114413455A (en) * | 2021-12-13 | 2022-04-29 | 珠海格力电器股份有限公司 | Taste detection method and device |
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