CN109991147B - Method for monitoring service life of filter screen in air purifier and related device - Google Patents
Method for monitoring service life of filter screen in air purifier and related device Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000001179 sorption measurement Methods 0.000 claims description 22
- 239000012855 volatile organic compound Substances 0.000 claims description 13
- 238000012806 monitoring device Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
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Abstract
The embodiment of the application discloses monitoring method and relevant device of filter screen life among air purifier, include: under the starting state, calculating the theoretical wind pressure of the fan according to the specification of the filter screen and the content of the particulate matters in the current air; determining the current wind pressure weight according to the relative sizes of the theoretical wind pressure and the actual wind pressure and the corresponding relation between the relative sizes and the wind pressure weight; determining a current air temperature weight and a current humidity weight according to the current air temperature, the current humidity, the corresponding relation between the air temperature and the air temperature weight and the first corresponding relation between the humidity and the humidity weight; determining the current life attenuation speed of the filter screen according to the preset life attenuation speed, the current wind pressure weight, the current air temperature weight and the current humidity weight; and determining the residual service life of the filter screen according to the initial service life of the filter screen, the current service life decay speed and the startup duration. This application can monitor effectively filter screen life-span among the air purifier for the user in time changes the filter screen.
Description
Technical Field
The application relates to the technical field of air purifiers, in particular to a method for monitoring service life of a filter screen in an air purifier and a related device.
Background
At present, along with the improvement of living standard, people have stronger and stronger health consciousness. When air quality is poor, air purifiers are commonly used to purify the air, whether at home or in a vehicle.
As is well known, the filter screen among the air purifier is longlived, when the life-span was ended, needs in time to change the filter screen, if not change the filter screen in time, because accumulated a large amount of dusts in the filter screen, the air purification effect is less strong, can increase the burden of motor in the fan moreover, and serious, not only play the effect of air-purifying, still can cause the pollution to the air.
Therefore, monitoring the service life of the filter screen becomes a technical problem to be solved urgently.
Disclosure of Invention
The embodiment of the application provides a monitoring method and a related device for service life of a filter screen in an air purifier, and the service life of the filter screen in the air purifier can be effectively monitored, so that a user can timely replace the filter screen.
In view of this, the first aspect of the present application provides a method for monitoring the service life of a filter screen in an air purifier, including:
under the starting state, calculating the theoretical wind pressure of the fan according to the specification of the filter screen and the content of the particulate matters in the current air;
determining the current wind pressure weight according to the relative sizes of the theoretical wind pressure and the actual wind pressure and the corresponding relation between the relative sizes and the wind pressure weight, wherein the actual wind pressure is obtained by a sensor;
determining a current air temperature weight and a current humidity weight according to a current air temperature, a current humidity, a corresponding relation between the air temperature and the air temperature weight and a first corresponding relation between the humidity and the humidity weight, wherein the current air temperature and the current humidity are obtained by a sensor;
determining the current life attenuation speed of the filter screen according to the preset life attenuation speed, the current wind pressure weight, the current air temperature weight and the current humidity weight, wherein the life attenuation speed of the filter screen is related to wind pressure, air temperature and humidity;
and determining the residual service life of the filter screen according to the initial service life of the filter screen, the current service life decay speed and the startup duration.
Preferably, the first and second electrodes are formed of a metal,
the method for monitoring the service life of the filter screen in the air purifier further comprises the following steps:
determining a current humidity weight according to the current humidity, a second corresponding relation between the humidity and the humidity weight in a shutdown state, wherein the current humidity is acquired by a sensor;
determining the current life attenuation speed of the filter screen according to the preset life attenuation speed and the current humidity weight, wherein the life attenuation speed of the filter screen is related to the humidity;
and determining the residual service life of the filter screen according to the initial service life of the filter screen, the current service life decay speed and the startup duration.
Preferably, the first and second electrodes are formed of a metal,
the method for monitoring the service life of the filter screen in the air purifier further comprises the following steps:
comparing the actual wind pressure with the set wind pressure;
and when the actual wind pressure reaches the set wind pressure, determining that the residual service life of the filter screen is zero.
Preferably, the first and second electrodes are formed of a metal,
the method for monitoring the service life of the filter screen in the air purifier further comprises the following steps:
under the starting state, calculating the current air intake according to the corresponding relation among the rotating speed of the fan, the rotating speed and the air intake;
calculating the adsorption capacity of the filter screen on the total volatile organic compounds according to the total volatile organic compounds in the current air, the current air intake and the starting time;
and determining the residual service life of the filter screen according to the adsorption quantity and the preset total adsorption quantity.
The second aspect of the present application provides a monitoring device for the service life of a filter screen in an air purifier, which comprises:
the theoretical wind pressure calculating unit is used for calculating the theoretical wind pressure of the fan according to the specification of the filter screen and the content of the particulate matters in the current air in a starting state;
the weight determining unit is used for determining the current wind pressure weight according to the relative sizes of the theoretical wind pressure and the actual wind pressure and the corresponding relation between the relative sizes and the wind pressure weight, and the actual wind pressure is obtained by a sensor;
the weight determining unit is further used for determining a current air temperature weight and a current humidity weight according to the current air temperature, the current humidity, the corresponding relation between the air temperature and the air temperature weight and the first corresponding relation between the humidity and the humidity weight, wherein the current air temperature and the current humidity are obtained by a sensor;
the attenuation speed determining unit is used for determining the current service life attenuation speed of the filter screen according to the preset service life attenuation speed, the current wind pressure weight, the air temperature weight and the current humidity weight, wherein the service life attenuation speed of the filter screen is related to wind pressure, air temperature and humidity;
and the service life calculating unit is used for determining the residual service life of the filter screen according to the initial service life of the filter screen, the current service life decay speed and the starting-up time length.
Preferably, the first and second electrodes are formed of a metal,
the weight determining unit is further configured to determine a current humidity weight according to the current humidity, a second corresponding relationship between the humidity and the humidity weight in a shutdown state, where the current humidity is obtained by the sensor;
the attenuation speed determining unit is further used for determining the current life attenuation speed of the filter screen according to the preset life attenuation speed and the current humidity weight, wherein the life attenuation speed of the filter screen is related to the humidity;
and the service life calculating unit is also used for determining the residual service life of the filter screen according to the initial service life of the filter screen, the current service life decay speed and the starting-up time.
Preferably, the first and second electrodes are formed of a metal,
air purifier in filter screen life's monitoring devices, still include:
the comparison unit is used for comparing the actual wind pressure with the set wind pressure;
and the service life calculating unit is also used for determining that the residual service life of the filter screen is zero when the actual wind pressure reaches the set wind pressure.
Preferably, the first and second electrodes are formed of a metal,
air purifier in filter screen life's monitoring devices, still include:
the air intake calculating unit is used for calculating the current air intake according to the corresponding relation among the rotating speed of the fan, the rotating speed and the air intake in the starting state;
the adsorption amount calculation unit is used for calculating the adsorption amount of the total volatile organic compounds by the filter screen according to the amount of the total volatile organic compounds in the current air, the current air intake and the starting-up time;
and the service life calculating unit is also used for determining the residual service life of the filter screen according to the adsorption quantity and the preset adsorption total quantity.
The third aspect of the present application also provides a monitoring device, the device comprising a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute the method for monitoring the service life of the filter screen in the air purifier according to any one of the first aspect of the present application according to the instructions in the program code.
The fourth aspect of the present application also provides a computer-readable storage medium for storing program code for executing the method for monitoring the life of a filter screen in an air purifier according to any one of the first aspect of the present application.
According to the technical scheme, the embodiment of the application has the following advantages:
in the embodiment of the application, a method for monitoring the service life of a filter screen in an air purifier is provided, which comprises the following steps:
under the starting state, calculating the theoretical wind pressure of the fan according to the specification of the filter screen and the content of the particulate matters in the current air; then determining the current wind pressure weight according to the relative sizes of the theoretical wind pressure and the actual wind pressure and the corresponding relation between the relative sizes and the wind pressure weight, wherein the actual wind pressure is obtained by a sensor; determining a current air temperature weight and a current humidity weight according to the current air temperature, the current humidity, the corresponding relation between the air temperature and the air temperature weight and the first corresponding relation between the humidity and the humidity weight, wherein the current air temperature and the current humidity are obtained by a sensor; determining the current life attenuation speed of the filter screen according to the preset life attenuation speed, the current wind pressure weight, the current air temperature weight and the current humidity weight, wherein the life attenuation speed of the filter screen is related to wind pressure, air temperature and humidity; finally, determining the residual service life of the filter screen according to the initial service life of the filter screen, the current service life decay speed and the startup duration;
this application embodiment can carry out effective monitoring to the life-span of filter screen among the air purifier, the surplus life-span of suggestion filter screen for the user can in time know the filter screen life-span, thereby in time change the filter screen.
Drawings
FIG. 1 is a schematic flow chart illustrating a method for monitoring the life of a filter screen of an air purifier according to an embodiment of the present disclosure;
FIG. 2 is a schematic flow chart illustrating a method for monitoring the life of a filter screen of an air purifier according to a second embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of an embodiment of a device for monitoring the lifetime of a filter screen in an air purifier according to an embodiment of the present disclosure.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, a schematic flow chart of a method for monitoring a lifetime of a filter screen of an air purifier according to a first embodiment of the present application is shown.
The embodiment of the application provides a first embodiment of a method for monitoring the service life of a filter screen in an air purifier, which comprises the following steps:
and 101, in a starting state, calculating theoretical wind pressure of the fan according to the specification of the filter screen and the content of the particulate matters in the current air.
It can be understood that the specifications of the filter screens are different, and the corresponding wind pressures of the fans are different under the same air quality.
In the present application, the particulate matter content in the air may be calculated by monitoring the value of pm, for example, pm1, pm2.5, pm10 may be monitored.
And 102, determining the current wind pressure weight according to the relative sizes of the theoretical wind pressure and the actual wind pressure and the corresponding relation between the relative sizes and the wind pressure weight, wherein the actual wind pressure is obtained by a sensor.
It should be noted that, under the theoretical wind pressure, a life decay rate is corresponded, and when the deviation occurs between the actual wind pressure and the theoretical wind pressure, the corresponding life decay rate will change, so the life decay rate is adjusted by the current wind pressure weight in the embodiment of the present application.
It can be understood that the actual wind pressure of the fan will gradually increase as the particles adhere to the filter screen.
And 103, determining the current air temperature weight and the current humidity weight according to the current air temperature, the current humidity, the corresponding relation between the air temperature and the air temperature weight and the first corresponding relation between the humidity and the humidity weight, wherein the current air temperature and the current humidity are obtained by a sensor.
It is understood that both air temperature and air humidity can affect the life of the screen; specifically, humidity can influence the adhesion of particulate matter on the filter screen, and when humidity was great, a plurality of little particulate matters combine easily to form big particulate matter, and then accelerate the decay of filter screen life-span.
The weight that this application corresponds respectively is confirmed according to current gas temperature and current humidity, then adjusts life decay rate according to the weight for final filter screen life-span calculation is more accurate.
And 104, determining the current life decay speed of the filter screen according to the preset life decay speed, the current wind pressure weight, the current air temperature weight and the current humidity weight, wherein the life decay speed of the filter screen is related to wind pressure, air temperature and humidity.
And 105, determining the residual service life of the filter screen according to the initial service life of the filter screen, the current service life decay speed and the startup duration.
This application embodiment can carry out effective monitoring to the life-span of filter screen among the air purifier, the surplus life-span of suggestion filter screen for the user can in time know the filter screen life-span, thereby in time change the filter screen.
It should be noted that in the process of calculating the service life of the filter screen, the fan pressure, the amount of particles in the air, and other factors are considered, so that the embodiment of the present application is suitable for monitoring the service life of the hepa filter screen.
Referring to fig. 2, a flow chart of a method for monitoring a lifetime of a filter screen of an air purifier according to a second embodiment of the present application is illustrated.
The embodiment of the application provides a second embodiment of a method for monitoring the service life of a filter screen in an air purifier, which comprises the following steps:
And 202, determining the current wind pressure weight according to the relative sizes of the theoretical wind pressure and the actual wind pressure and the corresponding relation between the relative sizes and the wind pressure weight, wherein the actual wind pressure is obtained by the sensor.
And 203, determining the current air temperature weight and the current humidity weight according to the current air temperature, the current humidity, the corresponding relation between the air temperature and the air temperature weight and the first corresponding relation between the humidity and the humidity weight, wherein the current air temperature and the current humidity are obtained by a sensor.
And 204, determining the current life decay speed of the filter screen according to the preset life decay speed, the current wind pressure weight, the current air temperature weight and the current humidity weight, wherein the life decay speed of the filter screen is related to wind pressure, air temperature and humidity.
And step 205, determining the residual service life of the filter screen according to the initial service life of the filter screen, the current service life decay speed and the startup duration.
And step 206, in a shutdown state, determining the current humidity weight according to the current humidity, the second corresponding relation between the humidity and the humidity weight, wherein the current humidity is acquired by the sensor.
Step 207, determining the current life decay speed of the filter screen according to the preset life decay speed and the current humidity weight, wherein the life decay speed of the filter screen is related to the humidity;
and step 208, determining the residual service life of the filter screen according to the initial service life of the filter screen, the current service life decay speed and the startup duration.
It should be noted that, in the shutdown state, the life of the filter screen is not affected by the amount of particles in the air, but is also affected by the humidity of the air, and compared with the startup state, the humidity has a different effect on the life decay of the filter screen; for example, when the air conditioner is turned off for more than 6 hours and the current air is moderately over 65%, the air humidity increases by 1%, and the service life of the filter screen increases by 0.4%, while in the on state, the air humidity increases by 1%, and the service life of the filter screen increases by 0.2% when the current air is moderately over 65%.
And step 209, comparing the actual wind pressure with the set wind pressure.
And step 210, when the actual wind pressure reaches the set wind pressure, determining that the residual service life of the filter screen is zero.
It will be appreciated that the ability of the screen to carry dust is limited and that the life of the screen may expire when the amount of dust deposited on the screen exceeds a certain amount.
And this application is through monitoring the dust volume of piling up on the wind pressure removes the monitoring filter screen, and the dust volume of piling up on the filter screen is big more, then the wind pressure is big more, when actual wind pressure reaches the settlement wind pressure, the filter screen life-span then expires.
and step 213, determining the residual service life of the filter screen according to the adsorption quantity and the preset total adsorption quantity.
It should be noted that, in the embodiment of the present application, the decay rate of the filter screen life is adjusted according to the wind pressure, the humidity and the temperature, and then the remaining life of the filter screen is calculated, and the method is suitable for a hepa filter screen; for the activated carbon filter screen, the residual service life of the filter screen is calculated by calculating the adsorption capacity of the filter screen to total volatile organic compounds.
Referring to fig. 3, a schematic structural diagram of an embodiment of a device for monitoring a lifetime of a filter screen of an air purifier according to an embodiment of the present application is shown.
The embodiment of the application provides a monitoring devices of filter screen life-span among air purifier, includes:
the theoretical wind pressure calculating unit 301 is used for calculating the theoretical wind pressure of the fan according to the specification of the filter screen and the content of the particulate matters in the current air in the starting state;
a weight determining unit 302, configured to determine a current wind pressure weight according to a corresponding relationship between a theoretical wind pressure and an actual wind pressure, and a relative magnitude and a wind pressure weight of the theoretical wind pressure and the actual wind pressure, where the actual wind pressure is obtained by a sensor;
the weight determining unit 302 is further configured to determine a current air temperature weight and a current humidity weight according to the current air temperature, the current humidity, a corresponding relationship between the air temperature and the air temperature weight, and a first corresponding relationship between the humidity and the humidity weight, where the current air temperature and the current humidity are obtained by the sensor;
the decay rate determining unit 303 is configured to determine a current decay rate of the life of the filter screen according to a preset decay rate of the life, a current wind pressure weight, a current air temperature weight, and a current humidity weight, where the decay rate of the life of the filter screen is related to wind pressure, air temperature, and humidity;
and the life calculating unit 304 is used for determining the remaining life of the filter screen according to the initial life of the filter screen, the current life decay speed and the startup duration.
Further, the air conditioner is provided with a fan,
the weight determining unit 302 is further configured to determine a current humidity weight according to the current humidity, the humidity and the second corresponding relationship of the humidity weight in the shutdown state, where the current humidity is obtained by the sensor;
the decay rate determining unit 303 is further configured to determine a current life decay rate of the filter screen according to a preset life decay rate and a current humidity weight, where the life decay rate of the filter screen is related to humidity;
the life calculating unit 304 is further configured to determine the remaining life of the filter screen according to the initial life of the filter screen, the current life decay rate, and the startup duration.
Further, the monitoring devices of filter screen life among the air purifier can also include:
a comparison unit 305 for comparing the actual wind pressure with the set wind pressure;
the life calculating unit 304 is further configured to determine that the remaining life of the filter screen is zero when the actual wind pressure reaches the set wind pressure.
Further, the monitoring devices of filter screen life among the air purifier can also include:
the air intake calculating unit 306 is configured to calculate a current air intake according to a corresponding relationship between a rotation speed of the fan and the air intake in a startup state;
an adsorption amount calculation unit 307, configured to calculate an adsorption amount of the total volatile organic compounds by the filter screen according to the amount of the total volatile organic compounds in the current air, the current air intake amount, and the start-up time period;
the life calculating unit 305 is further configured to determine the remaining life of the filter screen according to the adsorption amount and a preset total adsorption amount.
An embodiment of the present application further provides a monitoring device, where the monitoring device includes a processor and a memory:
the memory is used for storing the program codes and transmitting the program codes to the processor;
the processor is used for executing the method for monitoring the service life of the filter screen in the air purifier according to the instructions in the program codes.
The embodiment of the application also provides a computer-readable storage medium, which is used for storing program codes, and the program codes are used for executing the monitoring method for the service life of the filter screen in the air purifier.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (8)
1. A method for monitoring the service life of a filter screen in an air purifier is characterized by comprising the following steps:
under the starting state, calculating the theoretical wind pressure of the fan according to the specification of the filter screen and the content of the particulate matters in the current air;
determining the current wind pressure weight according to the relative sizes of the theoretical wind pressure and the actual wind pressure and the corresponding relation between the relative sizes and the wind pressure weight, wherein the actual wind pressure is obtained by a sensor;
determining a current air temperature weight and a current humidity weight according to a current air temperature, a current humidity, a corresponding relation between the air temperature and the air temperature weight and a first corresponding relation between the humidity and the humidity weight, wherein the current air temperature and the current humidity are obtained by a sensor;
determining the current life attenuation speed of the filter screen according to the preset life attenuation speed, the current wind pressure weight, the current air temperature weight and the current humidity weight, wherein the life attenuation speed of the filter screen is related to wind pressure, air temperature and humidity;
determining the residual service life of the filter screen according to the initial service life of the filter screen, the current service life decay speed and the startup duration;
determining a current humidity weight according to the current humidity, a second corresponding relation between the humidity and the humidity weight in a shutdown state, wherein the current humidity is acquired by a sensor;
determining the current life attenuation speed of the filter screen according to the preset life attenuation speed and the current humidity weight, wherein the life attenuation speed of the filter screen is related to the humidity;
and determining the residual service life of the filter screen according to the initial service life of the filter screen, the current service life decay speed and the shutdown duration.
2. The method of claim 1, further comprising:
comparing the actual wind pressure with the set wind pressure;
and when the actual wind pressure reaches the set wind pressure, determining that the residual service life of the filter screen is zero.
3. The method of claim 1, further comprising:
under the starting state, calculating the current air intake according to the corresponding relation among the rotating speed of the fan, the rotating speed and the air intake;
calculating the adsorption capacity of the filter screen on the total volatile organic compounds according to the total volatile organic compounds in the current air, the current air intake and the starting time;
and determining the residual service life of the filter screen according to the adsorption quantity and the preset total adsorption quantity.
4. The utility model provides a monitoring devices of filter screen life-span among air purifier which characterized in that includes:
the theoretical wind pressure calculating unit is used for calculating the theoretical wind pressure of the fan according to the specification of the filter screen and the content of the particulate matters in the current air in a starting state;
the weight determining unit is used for determining the current wind pressure weight according to the relative sizes of the theoretical wind pressure and the actual wind pressure and the corresponding relation between the relative sizes and the wind pressure weight, and the actual wind pressure is obtained by a sensor;
the weight determining unit is further used for determining a current air temperature weight and a current humidity weight according to the current air temperature, the current humidity, the corresponding relation between the air temperature and the air temperature weight and the first corresponding relation between the humidity and the humidity weight, wherein the current air temperature and the current humidity are obtained by a sensor;
the attenuation speed determining unit is used for determining the current service life attenuation speed of the filter screen according to the preset service life attenuation speed, the current wind pressure weight, the air temperature weight and the current humidity weight, wherein the service life attenuation speed of the filter screen is related to wind pressure, air temperature and humidity;
the service life calculating unit is used for determining the residual service life of the filter screen according to the initial service life of the filter screen, the current service life decay speed and the starting-up time;
the weight determining unit is further configured to determine a current humidity weight according to the current humidity, a second corresponding relationship between the humidity and the humidity weight in a shutdown state, where the current humidity is obtained by the sensor;
the attenuation speed determining unit is further used for determining the current life attenuation speed of the filter screen according to the preset life attenuation speed and the current humidity weight, wherein the life attenuation speed of the filter screen is related to the humidity;
and the service life calculating unit is also used for determining the residual service life of the filter screen according to the initial service life of the filter screen, the current service life decay speed and the shutdown duration.
5. The device for monitoring the life of a filter screen in an air purifier according to claim 4, further comprising:
the comparison unit is used for comparing the actual wind pressure with the set wind pressure;
and the service life calculating unit is also used for determining that the residual service life of the filter screen is zero when the actual wind pressure reaches the set wind pressure.
6. The device for monitoring the life of a filter screen in an air purifier according to claim 4, further comprising:
the air intake calculating unit is used for calculating the current air intake according to the corresponding relation among the rotating speed of the fan, the rotating speed and the air intake in the starting state;
the adsorption amount calculation unit is used for calculating the adsorption amount of the total volatile organic compounds by the filter screen according to the amount of the total volatile organic compounds in the current air, the current air intake and the starting-up time;
and the service life calculating unit is also used for determining the residual service life of the filter screen according to the adsorption quantity and the preset adsorption total quantity.
7. A monitoring device, the device comprising a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute the method for monitoring the lifetime of a filter screen in an air purifier according to any one of claims 1 to 3 according to instructions in the program code.
8. A computer-readable storage medium for storing program code for performing the method for monitoring the life of a filter screen in an air purifier according to any one of claims 1 to 3.
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| CN111780345A (en) * | 2019-04-04 | 2020-10-16 | 广东美的环境电器制造有限公司 | Method and device for calculating service life of filter screen and purifying equipment |
| CN110393985A (en) * | 2019-07-26 | 2019-11-01 | 好空气科技发展有限公司 | Filter element for purifier replacing options based on loss calculation |
| CN110529976A (en) * | 2019-08-22 | 2019-12-03 | 深圳和而泰家居在线网络科技有限公司 | Air cleaning facility filter screen life detecting method, device, system and equipment |
| CN110686392A (en) * | 2019-09-17 | 2020-01-14 | 珠海格力电器股份有限公司 | Rapid purification method for HEPA (high efficiency particulate air) network of air conditioner, computer readable storage medium and air conditioner |
| CN111482024A (en) * | 2020-06-08 | 2020-08-04 | 深圳市鼎信科技有限公司 | Control method and device for air purification device and storage medium |
| CN112032927B (en) * | 2020-09-08 | 2021-05-11 | 珠海格力电器股份有限公司 | Filter screen replacement prompting method and device and gas purification equipment |
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