CN111721557A - Method for detecting running state of range hood - Google Patents
Method for detecting running state of range hood Download PDFInfo
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- CN111721557A CN111721557A CN201910217672.0A CN201910217672A CN111721557A CN 111721557 A CN111721557 A CN 111721557A CN 201910217672 A CN201910217672 A CN 201910217672A CN 111721557 A CN111721557 A CN 111721557A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000000523 sample Substances 0.000 claims abstract description 33
- 230000002159 abnormal effect Effects 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000004519 grease Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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- General Physics & Mathematics (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a method for detecting the running state of a range hood, which comprises the following steps: respectively arranging pressure probes in an air inlet area, a pressurizing area and an air outlet area of the range hood, and acquiring a current air inlet area air pressure value, a current pressurizing area air pressure value and a current air outlet area air pressure value of the range hood in real time in an opening state of the range hood; and comparing the current air inlet area air pressure value, the current pressurized area air pressure value and the current air outlet area air pressure value with the corresponding standard air pressure value respectively to determine whether the operating state of the range hood is normal or not. The invention can enable a user to accurately judge whether the suction and exhaust of the range hood are normal after the range hood is installed and the time for cleaning the oil screen, the wind wheel and the air outlet base, and can timely and accurately judge which process of air inlet, pressurization and air outlet of the range hood has problems when the oil absorption effect of the range hood is reduced, thereby being convenient for use and maintenance.
Description
Technical Field
The invention belongs to the technical field of range hood control, and particularly relates to a method for detecting an operating state of a range hood.
Background
At present, the monitoring of the operating state of the range hood comprises: whether the suction and the exhaust of the range hood are normal after installation, whether the performance is reduced after long-time work, whether an oil net or a wind wheel or even an air outlet seat needs to be cleaned or not, the monitoring of the prior art on the above conditions is mainly subjectively judged from the appearance or the service cycle of a user, and no scientific basis standard exists; in addition, when the performance problems such as the reduction of the smoking effect of the range hood occur, the problem can not be directly determined in the air inlet, pressurization and air outlet stages of the range hood by a user or a maintenance person of the existing monitoring system, so that the maintenance person can not solve the problem in a targeted manner and is inconvenient to maintain.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a method for detecting the running state of a range hood.
The technical scheme of the invention is realized as follows:
the embodiment of the invention provides a method for detecting the running state of a range hood, which comprises the following steps: respectively arranging pressure probes in an air inlet area, a pressurizing area and an air outlet area of the range hood, and acquiring a current air inlet area air pressure value, a current pressurizing area air pressure value and a current air outlet area air pressure value of the range hood in real time in an opening state of the range hood; and respectively comparing the current air inlet area air pressure value, the current pressurized area air pressure value and the current air outlet area air pressure value with the corresponding standard air pressure value to determine whether the operating state of the range hood is normal.
Preferably, the current air inlet area air pressure value, the current pressurized area air pressure value and the size relationship between the current air outlet area air pressure value and the corresponding standard air pressure value are compared respectively, and whether the operating state of the range hood is normal or not is determined, specifically: respectively comparing the magnitude relation between the current air inlet area air pressure value and a preset air inlet area standard air pressure value, the magnitude relation between the current pressurizing area air pressure value and a preset pressurizing area standard air pressure value, and the magnitude relation between the current air outlet area air pressure value and a preset air outlet area standard air pressure value, and determining whether the current air inlet area air pressure value, the current pressurizing area air pressure value and the current air outlet area air pressure value are in normal value ranges; and if any one or more of the current air inlet area air pressure value, the current pressurized area air pressure value and the current air outlet area air pressure value is not in a normal value range, a warning that the corresponding area running state is abnormal is sent.
Preferably, it is right respectively the big or small relation of current intake zone wind pressure value and predetermined intake zone standard wind pressure value, the big or small relation of current pressurized zone wind pressure value and predetermined pressurized zone standard wind pressure value, and the big or small relation of current play district wind pressure value and predetermined play district standard wind pressure value compares, confirms current intake zone wind pressure value, current pressurized zone wind pressure value, and whether current play district wind pressure value is in the normal value scope, afterwards, this method still includes: if the current air inlet area air pressure value, the current pressurized area air pressure value and the current air outlet area air pressure value are all in the normal value range, a prompt that the running state of the range hood is normal is sent.
Preferably, the comparison between the current air intake area air pressure value and a preset air intake area standard air pressure value determines whether the current air intake area air pressure value is within a normal value range, specifically: if the current air inlet area air pressure value is more than or equal to twice of a preset air inlet area standard air pressure value, determining that the current air inlet area air pressure value is not in a normal value range; and if the current air inlet area air pressure value is smaller than twice of a preset air inlet area standard air pressure value, determining that the current air inlet area air pressure value is in a normal value range.
Preferably, the comparing the relationship between the current pressure value of the pressurized area and a preset standard pressure value of the pressurized area determines whether the current pressure value of the pressurized area is within a normal range, specifically: if the current pressurization area wind pressure value is less than or equal to one half of a preset pressurization area standard wind pressure value, determining that the current pressurization area wind pressure value is not in a normal value range; and if the current pressurized area wind pressure value is larger than one half of a preset pressurized area standard wind pressure value, determining that the current pressurized area wind pressure value is in a normal value range.
Preferably, the comparison is carried out to the magnitude relation of the current air-out area wind pressure value and the preset air-out area standard wind pressure value, and whether the current air-out area wind pressure value is in the normal value range is determined, specifically: if the current air-out area air pressure value is more than or equal to twice of a preset air-out area standard air pressure value, determining that the current air-out area air pressure value is not in a normal value range; and if the current air-out area air pressure value is smaller than twice of the preset air-out area standard air pressure value, determining that the current air-out area air pressure value is in the normal value range.
Preferably, the air inlet area pressure probe is fixed at the bottom of the volute of the range hood and used for acquiring the current air inlet area air pressure value of the range hood in real time, and the air inlet area pressure probe is positioned on the back of the air inlet area oil net and arranged towards the air inlet.
Preferably, the pressure probe of the pressurization area is fixed on the front plate of the wind cabinet and used for acquiring the current pressure value of the pressurization area of the range hood in real time, and the end part of the pressure probe of the pressurization area is arranged towards the hub of the wind wheel.
Preferably, the air-out area pressure probe is fixed on one side of the air-out seat and used for collecting the current air-out area air pressure value of the range hood in real time, and the end part of the air-out area pressure probe is arranged towards the center of the air-out seat.
Compared with the prior art, the method has the advantages that the current air inlet area air pressure value, the current pressurizing area air pressure value and the current air outlet area air pressure value of the range hood are collected in real time in the starting state of the range hood; the current air inlet area wind pressure value, the current pressurized area wind pressure value, and the current air outlet area wind pressure value are compared with the magnitude relation of the corresponding standard wind pressure value respectively, whether the running state of the range hood is normal can be determined, whether the suction and exhaust is normal after the range hood is installed can be accurately determined by a user, the oil screen, the wind wheel and the air outlet base need cleaning time, and the process of determining the air inlet, pressurization and air outlet of the range hood, which is problematic, can be timely and accurately determined when the oil absorption effect of the range hood is reduced, and the range hood is convenient to use and maintain.
Drawings
Fig. 1 is a flow chart of a method for detecting an operating state of a range hood according to an embodiment of the present invention;
fig. 2 is a first structural schematic diagram of a range hood according to a method for detecting an operating state of the range hood of the embodiment of the present invention;
fig. 3 is a second structural schematic diagram of a range hood according to the method for detecting an operating state of a range hood of the embodiment of the invention.
The reference numbers are as follows:
1-air intake area pressure probe; 2-oil net; 3-a pressure probe in a pressurization area; 4-wind cabinet; 5, a wind wheel; 6-air outlet area pressure probe; 7-air outlet seat.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention provides a method for detecting the running state of a range hood, which comprises the following steps: collecting a current air inlet area air pressure value, a current pressurizing area air pressure value and a current air outlet area air pressure value of the range hood in real time in the starting state of the range hood; and comparing the current air inlet area air pressure value, the current pressurized area air pressure value and the current air outlet area air pressure value with the corresponding standard air pressure value respectively to determine whether the operating state of the range hood is normal or not.
Wherein, the air inlet area of the range hood is the position of an oil net, the pressurizing area is the inlet of an air cabinet, and the air outlet area is the position of an air seat.
Comparing the current air inlet area air pressure value, the current pressurized area air pressure value and the current air outlet area air pressure value with the corresponding standard air pressure value respectively to determine whether the operating state of the range hood is normal, wherein the method specifically comprises the following steps:
respectively comparing the magnitude relation between the current air inlet area air pressure value and a preset air inlet area standard air pressure value, the magnitude relation between the current pressurizing area air pressure value and a preset pressurizing area standard air pressure value, and the magnitude relation between the current air outlet area air pressure value and a preset air outlet area standard air pressure value, and determining whether the current air inlet area air pressure value, the current pressurizing area air pressure value and the current air outlet area air pressure value are in normal value ranges; if any one or more of the current air inlet area air pressure value, the current pressurizing area air pressure value and the current air outlet area air pressure value is not in the normal value range, a warning that the corresponding area operation state is abnormal is sent; and if the current air pressure value of the air inlet area, the current air pressure value of the pressurizing area and the current air pressure value of the air outlet area are all in the normal value range, a prompt that the running state of the range hood is normal is sent.
The real-time collection of current intake area wind pressure value of range hood specifically is:
referring to fig. 3, an air inlet area pressure probe 1 is arranged in an air inlet area of the range hood, and a current air inlet area air pressure value of the range hood is acquired in real time, wherein one end of the air inlet area pressure probe 1 can be fixed at the bottom of a volute of the range hood, and the other end of the air inlet area pressure probe 1 is bent and then positioned on the back of an oil net 2 in the air inlet area and directly faces an air inlet in the middle of the oil net 2; the probe is arranged on the back of the oil screen 2, so that the appearance of the oil screen 2 is not influenced when the probe is seen from the front; in addition, the installation and maintenance are more convenient.
Comparing the magnitude relation of the current air inlet area air pressure value and the preset air inlet area standard air pressure value, and determining whether the current air inlet area air pressure value is in a normal value range, specifically: if the current air inlet area air pressure value is more than or equal to twice of the preset air inlet area standard air pressure value, determining that the current air inlet area air pressure value is not in the normal value range; and if the current air inlet area air pressure value is smaller than twice of the preset air inlet area standard air pressure value, determining that the current air inlet area air pressure value is in the normal value range.
After the range hood is used for a long time, the oil screen accumulates a large amount of grease, the accumulation of the grease on the oil screen can cause the air inlet to be smaller, and the air inlet is further smaller to further cause the increase of air inlet pressure; when the area of the air inlet is reduced by more than half, the air pressure value of the air inlet is more than twice of the standard air pressure value, therefore, according to the comparison relation between the current air pressure value of the air inlet area and the preset air pressure value of the air inlet area, if the current air pressure value of the air inlet area is more than or equal to the preset air pressure value of the air inlet area, the abnormality of the air inlet area can be determined, and at the moment, a warning is sent to remind a user to clean the oil net.
According to the parameters of the existing range hood, the preset standard wind pressure value of the air intake area is-5 to-15 Pa.
The real-time collection of range hood current pressurization district wind pressure value specifically is:
referring to fig. 2, a pressure probe 3 of a pressurization area is arranged on a front plate of a wind cabinet 4 of the range hood, a current pressure value of the pressurization area of the range hood is acquired in real time, the end part of the pressure probe 3 of the pressurization area directly faces to a hub position in the middle of a wind wheel 5, and since the wind pressure at the position is the place where the wind enters the wind wheel 5 most stably and reflects the actual wind inlet amount, the detection data is more reliable; the probe is in a thin tube shape, so that the air inlet of the air cabinet 4 is basically not influenced and the noise is not generated; in addition, the installation and maintenance are more convenient.
Comparing the magnitude relation between the current pressure zone wind pressure value and a preset pressure zone standard wind pressure value, and determining whether the current pressure zone wind pressure value is in a normal value range, specifically: if the current pressure value of the pressurized area is less than or equal to one half of the preset standard pressure value of the pressurized area, determining that the current pressure value of the pressurized area is not in the normal value range; and if the current pressure value of the pressurized area is greater than one half of the preset standard pressure value of the pressurized area, determining that the current pressure value of the pressurized area is in the normal value range.
After the range hood is used for a long time, grease is accumulated in the wind wheel and the volute, so that the wind wheel is heavy, the space between the blades is narrowed, and the interior of the volute is not smooth, the load of the wind wheel is increased, the rotating speed is reduced, and the wind pressure at the inlet of the wind cabinet is reduced; when the wind pressure is reduced to less than or equal to half of the standard wind pressure value of the pressurization area, the pressurization area can be considered to be abnormal, and a warning is given out to remind a user to clean the wind wheel and the interior of the wind cabinet. Therefore, according to the comparison relationship between the current pressure zone wind pressure value and the preset pressure zone standard wind pressure value, if the current pressure zone wind pressure value is less than or equal to one half of the preset pressure zone standard wind pressure value, the current pressure zone wind pressure value is determined to be out of the normal value range, and at the moment, a warning is sent out to remind a user to clean the interior of the wind wheel and the wind cabinet.
According to the parameters of the existing range hood, the preset standard wind pressure value of the pressurization area is-10 to-25 Pa.
The real-time collection of current air-out district wind pressure value of range hood specifically is:
referring to fig. 2, an air-out area pressure probe 6 is arranged on one side of an air-out base 7 of the range hood, a current air-out area air pressure value of the range hood is acquired in real time, the air-out area pressure probe 6 is arranged in the middle of an outlet connecting part of the air-out base 7 and an air cabinet 4, and the probe directly faces to the center of the air-out base 7, and since the air pressure at the position is the place where the air-out of the air-out base 7 is most stable and can reflect the actual air volume, the detection data is more reliable; the probe is in a thin tube shape, so that the air outlet of the air outlet seat 7 is basically not influenced and noise is not generated; in addition, the installation and maintenance are more convenient.
The big or small relation of present air-out district wind pressure value and the standard wind pressure value of predetermined air-out district is compared, confirms whether present air-out district wind pressure value is in the normal value scope, specifically is: if the current air-out area air pressure value is more than or equal to twice of the preset air-out area standard air pressure value, determining that the current air-out area air pressure value is not in the normal value range; and if the current air-out area air pressure value is less than twice of the preset air-out area standard air pressure value, determining that the current air-out area air pressure value is in the normal value range.
When the flue of the range hood is blocked or unsmooth, for example, the problems that the smoke pipe of the range hood is installed incorrectly, the interface of a public flue is too small, or the smoke pipe is not opened due to the fact that grease is adhered to the check sheet of the air outlet seat for a long time are caused, the air pressure of the air outlet area is increased, when the air pressure value is more than twice of the standard air pressure value of the air outlet area, the air outlet area can be considered to be abnormal, a warning is given, and a user is reminded to check or clean the air outlet seat or the flue. Therefore, according to the comparison relationship between the current air-out area air pressure value and the preset air-out area standard air pressure value, if the current air-out area air pressure value is more than or equal to twice of the preset air-out area standard air pressure value, the current air-out area air pressure value is determined not to be in the normal value range, and a warning is sent to remind a user to check or clean the air-out seat or the flue.
According to the parameters of the existing range hood, the standard air pressure value of the preset air outlet area is 30-60 Pa.
Referring to fig. 1, the process of detecting the operating state of the range hood of the present invention specifically includes:
and under the opening state of the range hood, an air inlet area pressure probe 1, a pressurization area pressure probe 3 and an air outlet area pressure probe 6 are respectively adopted to collect the current air inlet area air pressure value, the current pressurization area air pressure value and the current air outlet area air pressure value of the range hood in real time.
Comparing the current air inlet area air pressure value with twice of a preset air inlet area standard air pressure value, and if the current air inlet area air pressure value is more than or equal to twice of the preset air inlet area standard air pressure value, determining that the current air inlet area air pressure value is not in a normal value range, sending out an abnormal warning of the air inlet area of the range hood and prompting to clean an oil screen;
meanwhile, the current pressure value of the pressure area is compared with one half of the preset standard pressure value of the pressure area, if the current pressure value of the pressure area is less than or equal to one half of the preset standard pressure value of the pressure area, and the current pressure value of the pressure area is determined to be out of the normal value range, the abnormal warning of the pressure area of the range hood is sent out, and the cleaning of the wind cabinet and the wind wheel is prompted;
meanwhile, the current air outlet area air pressure value is compared with twice of the preset air outlet area standard air pressure value, if the current air outlet area air pressure value is larger than or equal to twice of the preset air outlet area standard air pressure value, the current air outlet area air pressure value is determined to be out of the normal value range, the warning of the abnormal air outlet area of the range hood is sent out, and the cleaning of the air outlet seat and the smoke tube is prompted.
If the current air inlet area air pressure value is smaller than twice of the preset air inlet area standard air pressure value, if the current pressurizing area air pressure value is larger than one half of the preset pressurizing area standard air pressure value, and if the current air outlet area air pressure value is smaller than twice of the preset air outlet area standard air pressure value, the current air inlet area air pressure value, the current pressurizing area air pressure value and the current air outlet area air pressure value are all in the normal value range, and a prompt that the operating state of the range hood is normal is sent.
The invention can enable a user to accurately judge whether the suction and exhaust of the range hood are normal after the range hood is installed and the time for cleaning the oil screen, the wind wheel and the air outlet base, and can timely and accurately judge which process of air inlet, pressurization and air outlet of the range hood has problems when the oil absorption effect of the range hood is reduced, thereby being convenient for use and maintenance.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (9)
1. A method for detecting the running state of a range hood is characterized by comprising the following steps: respectively arranging pressure probes in an air inlet area, a pressurizing area and an air outlet area of the range hood, and acquiring a current air inlet area air pressure value, a current pressurizing area air pressure value and a current air outlet area air pressure value of the range hood in real time in an opening state of the range hood; and respectively comparing the current air inlet area air pressure value, the current pressurized area air pressure value and the current air outlet area air pressure value with the corresponding standard air pressure value to determine whether the operating state of the range hood is normal.
2. The method for detecting the operating status of a range hood according to claim 1, wherein the comparing the current air intake area air pressure value, the current pressurized area air pressure value, and the current air outlet area air pressure value with the corresponding standard air pressure value respectively determines whether the operating status of the range hood is normal, specifically: respectively comparing the magnitude relation between the current air inlet area air pressure value and a preset air inlet area standard air pressure value, the magnitude relation between the current pressurizing area air pressure value and a preset pressurizing area standard air pressure value, and the magnitude relation between the current air outlet area air pressure value and a preset air outlet area standard air pressure value, and determining whether the current air inlet area air pressure value, the current pressurizing area air pressure value and the current air outlet area air pressure value are in normal value ranges; and if any one or more of the current air inlet area air pressure value, the current pressurized area air pressure value and the current air outlet area air pressure value is not in a normal value range, a warning that the corresponding area running state is abnormal is sent.
3. The method as claimed in claim 2, wherein the comparison between the current air intake zone pressure value and the preset air intake zone standard pressure value, the current pressurized zone pressure value and the preset pressurized zone standard pressure value, and the current air outlet zone pressure value and the preset air outlet zone standard pressure value is performed to determine whether the current air intake zone pressure value, the current pressurized zone pressure value, and the current air outlet zone pressure value are within the normal range, and thereafter the method further comprises: if the current air inlet area air pressure value, the current pressurized area air pressure value and the current air outlet area air pressure value are all in the normal value range, a prompt that the running state of the range hood is normal is sent.
4. The method for detecting an operating state of a range hood according to claim 2, wherein the comparing the magnitude relationship between the current air intake area air pressure value and a preset air intake area standard air pressure value determines whether the current air intake area air pressure value is within a normal value range, specifically: if the current air inlet area air pressure value is more than or equal to twice of a preset air inlet area standard air pressure value, determining that the current air inlet area air pressure value is not in a normal value range; and if the current air inlet area air pressure value is smaller than twice of a preset air inlet area standard air pressure value, determining that the current air inlet area air pressure value is in a normal value range.
5. The method for detecting the operating status of the range hood according to claim 2, wherein the comparing the relationship between the current pressure value of the pressurized area and the preset standard pressure value of the pressurized area determines whether the current pressure value of the pressurized area is within a normal range, specifically: if the current pressurization area wind pressure value is less than or equal to one half of a preset pressurization area standard wind pressure value, determining that the current pressurization area wind pressure value is not in a normal value range; and if the current pressurized area wind pressure value is larger than one half of a preset pressurized area standard wind pressure value, determining that the current pressurized area wind pressure value is in a normal value range.
6. The method for detecting an operating state of a range hood according to claim 2, wherein the comparing the magnitude relationship between the current air-out area air pressure value and a preset air-out area standard air pressure value determines whether the current air-out area air pressure value is within a normal value range, specifically: if the current air-out area air pressure value is more than or equal to twice of a preset air-out area standard air pressure value, determining that the current air-out area air pressure value is not in a normal value range; and if the current air-out area air pressure value is smaller than twice of the preset air-out area standard air pressure value, determining that the current air-out area air pressure value is in the normal value range.
7. The method for detecting the operating condition of the range hood according to any one of claims 1 to 6, wherein the intake area pressure probe is fixed at the bottom of the volute of the range hood for acquiring the current intake area wind pressure value of the range hood in real time, and the intake area pressure probe is located at the back of the intake area oil screen and is arranged toward the air inlet.
8. The method for detecting the operating state of the range hood according to any one of claims 1 to 6, wherein the pressure probe of the pressurized area is fixed on a front plate of the wind cabinet and used for acquiring the current pressure value of the pressurized area of the range hood in real time, and the end of the pressure probe of the pressurized area is arranged towards the wind wheel hub.
9. The method for detecting the operating status of the range hood according to any one of claims 1 to 6, wherein the air-out area pressure probe is fixed at one side of the air-out base for collecting the current air-out area air pressure value of the range hood in real time, and an end of the air-out area pressure probe faces to the center of the air-out base.
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| CN201910217672.0A CN111721557A (en) | 2019-03-21 | 2019-03-21 | Method for detecting running state of range hood |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283770A (en) * | 2020-10-12 | 2021-01-29 | 青岛海尔智慧厨房电器有限公司 | Smoke machine control method and device, smoke machine and storage medium |
| CN112361420A (en) * | 2020-12-10 | 2021-02-12 | 珠海格力电器股份有限公司 | Range hood cleaning control method and device and range hood |
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