CN115218454A - Filter screen dust collection state detection method and device and air purification device - Google Patents
Filter screen dust collection state detection method and device and air purification device Download PDFInfo
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- CN115218454A CN115218454A CN202210868941.1A CN202210868941A CN115218454A CN 115218454 A CN115218454 A CN 115218454A CN 202210868941 A CN202210868941 A CN 202210868941A CN 115218454 A CN115218454 A CN 115218454A
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/90—Cleaning of purification apparatus
Abstract
The invention provides a method and a device for detecting the dust collecting state of a filter screen and an air purifying device, and relates to the technical field of air purification, wherein the method comprises the following steps: acquiring real-time wind speed on a ventilation path of a filter screen; judging whether the filter screen reaches N corresponding dust collecting states or not according to the real-time wind speed and N preset wind speed thresholds, wherein N is an integer larger than 1, and the ith wind speed threshold is larger than the (i + 1) th wind speed threshold; and prompting a user to replace or clean the filter screen when the filter screen reaches the ith dust collection state, and prompting the user to replace or clean the filter screen when the filter screen reaches the Nth dust collection state, wherein i =1,2, …, N-1. The method can prompt the user when the filter screen reaches the dust collection state before the service life according to the requirements of different users on the air quality, so that the user can replace or clean the filter screen in advance according to the requirements.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to a method and a device for detecting the dust collection state of a filter screen and an air purification device.
Background
At present, the main function of products such as Air purifiers, air conditioners with purification functions, fresh Air blowers and the like on the market is to remove Particulate matters (for example, PM 2.5) in Air, and most of the products adopt two modes of High Efficiency Air filters (HEPA, for example, nonwoven fabric Filter) or electrostatic dust collection to intercept the Particulate matters. The two modes have advantages and disadvantages respectively, the HEPA wind resistance is high, the cost is low, and the material belongs to consumable materials and needs to be replaced after being used for a period of time; the electrostatic dust collection filter screen has low wind resistance, but has relatively high cost, needs to be cleaned regularly, and can be used permanently without replacement.
For the above air purification products, one of the existing ways to detect the lifetime of a dust collection screen is to use a dust collection screen, for example: an air speed sensor is arranged at the outlet of an air inlet of the air purification product, and the service life of the dust collection filter screen is detected through the air speed sensor. Along with the operation of the dust collection filter screen, the quantity of collected particles (such as PM 2.5) is more and more, the particles attached to the surface of the filter material are more and more, the wind resistance of the filter screen is larger and larger, the wind speed is lower and lower, and when the wind speed is lower than the rated wind speed of the dust collection filter screen, the replacement or deep cleaning of the dust collection filter screen is prompted.
However, the requirements for air quality vary from user to user, and for some users with high requirements for air quality, for example: respiratory tract is susceptible to infection, easy dust allergy or there is baby or child's user at home, can't wait to the collection dirt filter screen and reach and must change or degree of depth clearance state, because collection dirt filter screen when closing on must change or degree of depth clearance state, purifying effect has been very poor. To the user's needs that require high to air quality, the current mode that detects the life-span of collection dirt filter screen can't realize instructing the user before the collection dirt filter screen reaches life to make the user change or clear up collection dirt filter screen in advance according to the demand.
Disclosure of Invention
The invention provides a method and a device for detecting the dust collection state of a filter screen and an air purification device, which are used for solving the problem that users cannot be shown before the dust collection filter screen reaches the service life aiming at the requirements of different users on the air quality in the prior art.
The invention provides a method for detecting the dust collecting state of a filter screen, which comprises the following steps:
acquiring real-time wind speed on a ventilation path of a filter screen;
judging whether the filter screen reaches N corresponding dust collecting states or not according to the real-time wind speed and N preset wind speed thresholds, wherein N is an integer larger than 1, and the ith wind speed threshold is larger than the (i + 1) th wind speed threshold;
and prompting a user to replace or clean the filter screen when the filter screen reaches the ith dust collection state, and prompting the user that the filter screen must be replaced or cleaned when the filter screen reaches the Nth dust collection state, wherein i =1,2, …, N-1.
According to the method for detecting the dust collecting state of the filter screen, provided by the invention, whether the filter screen reaches the corresponding N dust collecting states is judged according to the real-time wind speed and the preset N wind speed thresholds, and the method comprises the following steps:
determining that the filter screen reaches an ith dust collection state under the condition that the real-time wind speed is less than an ith wind speed threshold and is more than or equal to an (i + 1) th wind speed threshold;
and under the condition that the real-time wind speed is less than the Nth wind speed threshold value, determining that the dust collection filter screen reaches the Nth dust collection state.
According to the method for detecting the dust collecting state of the filter screen provided by the invention, when the filter screen reaches the ith dust collecting state, a user is prompted to replace or clean the filter screen, and when the filter screen reaches the Nth dust collecting state, the user is prompted to replace or clean the filter screen, the method comprises the following steps:
when the filter screen reaches the ith dust collection state, prompting a user to replace or clean the filter screen by adopting an ith prompting mode; and under the condition that the filter screen reaches the Nth dust collection state, an Nth prompting mode is adopted to prompt a user that the filter screen needs to be replaced or cleaned.
According to the method for detecting the dust collecting state of the filter screen, provided by the invention, N =2 or 3.
According to the method for detecting the dust collecting state of the filter screen provided by the invention, when N =3, whether the filter screen reaches the corresponding N dust collecting states is judged according to the real-time wind speed and the preset N wind speed thresholds, and the method comprises the following steps:
judging whether the real-time wind speed is less than a first wind speed threshold and greater than or equal to a second wind speed threshold, and if so, enabling the dust collection filter screen to reach a first dust collection state;
or, the dust collection filter screen reaches a second dust collection state when the real-time wind speed is judged to be less than the second wind speed threshold and greater than or equal to a third wind speed threshold;
or, the dust collecting filter screen reaches a third dust collecting state when the real-time wind speed is judged to be less than a third wind speed threshold value,
the first wind speed threshold is greater than a second wind speed threshold, which is greater than a third wind speed threshold.
According to the method for detecting the dust collecting state of the filter screen provided by the invention, when the filter screen reaches the ith dust collecting state, a user is prompted to replace or clean the filter screen, and when the filter screen reaches the Nth dust collecting state, the user is prompted to replace or clean the filter screen, the method comprises the following steps:
the filter screen reaches under the condition of first collection dirt state, adopt first warning mode suggestion user, first warning mode is: sending prompt information capable of replacing or cleaning the filter screen to a display screen of at least one of a product corresponding to the filter screen, a remote controller of the corresponding product and an intelligent control terminal for display;
the filter screen reaches under the condition of second collection dirt state, adopt the second to remind the mode and remind the user, the second reminds the mode and is: sending prompt information for replacing or cleaning the filter screen to a display screen of at least one of a product corresponding to the filter screen, a remote controller of the corresponding product and an intelligent control terminal for displaying, and sending out prompt sound when the product is started each time;
the filter screen reaches under the condition of third collection dirt state, adopt the third to remind the mode and remind the user, the third reminds the mode and is: the prompt information of replacing or cleaning the filter screen is sent to the display screen of at least one of the product corresponding to the filter screen, the product remote controller corresponding to the filter screen and the intelligent control terminal, the flicker display is carried out, a prompt sound is sent out when the product is started every time, and the prompt sound is repeated at intervals of preset duration.
The method for detecting the dust collecting state of the filter screen further comprises the following steps: calibrating the wind speed threshold value, including:
acquiring the current clean air output ratio or standard particulate matter removal rate of a product corresponding to the filter screen;
judging whether the filter screen reaches a preset ith dust collection state or not according to the current clean air output ratio or the standard particulate matter removal rate;
and when the filter screen reaches the ith dust collection state, acquiring the wind speed on the ventilation path of the filter screen at the moment as the ith wind speed threshold value.
The present invention also provides a dust collection state detection device for a filter screen, comprising:
the real-time wind speed acquisition module is used for acquiring real-time wind speed on a ventilation path of the filter screen;
the dust collection state judgment module is used for judging whether the filter screen reaches corresponding N dust collection states according to the real-time wind speed and N preset wind speed thresholds, wherein N is an integer greater than 1, and the ith wind speed threshold is greater than the (i + 1) th wind speed threshold;
and the user prompting module is used for prompting a user to replace or clean the filter screen when the filter screen reaches the ith dust collection state, and prompting the user to replace or clean the filter screen when the filter screen reaches the nth dust collection state, wherein i =1,2, … and N-1.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the program, the filter screen dust collection state detection method is realized.
The present invention also provides an air purification apparatus comprising: filter screen, air velocity transducer and foretell electronic equipment, air velocity transducer sets up on the ventilation route of filter screen, electronic equipment connects air velocity transducer.
The present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements the filter screen dust collection state detection method as described in any one of the above.
According to the filter screen dust collection state detection method, the filter screen dust collection state detection device and the air purification device, the real-time wind speed on the ventilation path of the filter screen is obtained; judging whether the filter screen reaches N corresponding dust collecting states or not according to the real-time wind speed and N preset wind speed thresholds, wherein N is an integer larger than 1, and the ith wind speed threshold is larger than the (i + 1) th wind speed threshold; under the filter screen reaches the ith collection dirt state circumstances, the suggestion user changes or clears up the filter screen, and under reaching the Nth collection dirt state circumstances, the suggestion user must change or clear up the filter screen. Because real-time wind speed can reflect the collection dirt state of filter screen, and it is more to collect dirt promptly, and the wind speed is slower, and the current collection dirt state of filter screen is judged to accessible real-time wind speed and N wind speed threshold value, consequently, to the requirement of different users to air quality, can indicate the user when the filter screen reaches the collection dirt state before life for the user changes or clears up the filter screen according to own demand in advance.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic flow chart of a method for detecting the dust collecting status of a filter screen according to the present invention;
FIG. 2 is a schematic flow chart illustrating a calibration wind speed threshold in the method for detecting the dust collecting status of the filter screen according to the present invention;
FIG. 3 is a schematic structural diagram of a filter screen dust collection status detection device provided by the present invention;
fig. 4 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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 invention.
As shown in fig. 1, the method for detecting the dust collecting state of a filter screen according to the embodiment of the present invention includes:
step S110, obtaining a real-time wind speed on a ventilation path of the filter screen, and setting a wind speed sensor on the ventilation path of the filter screen, specifically, setting a wind speed sensor on an air inlet side and an air outlet side of the filter screen. The wind resistance of a clean filter screen is low, the wind speed on the ventilation path of the filter screen is high, and for different gears, the wind speed of a high gear is 8m/s +/-0.5 m/s, the wind speed of a medium gear is 5m/s +/-0.5 m/s, and the wind speed of a low gear is 5m/s +/-0.5 m/s. Along with filter screen work operation, collect particulate matter volume such as PM2.5 more and more, the filter media surface adnexed particulate matter is also more and more, and the filter screen windage is bigger and bigger, and the wind speed can be more and more low.
And S120, judging whether the filter screen reaches N corresponding dust collecting states or not according to the real-time wind speed and N preset wind speed thresholds, wherein N is an integer larger than 1, and the ith wind speed threshold is larger than the (i + 1) th wind speed threshold. In order to indicate the current dust collecting state of the filter screen of a user before the filter screen reaches the service life, the current dust collecting state of the filter screen is judged according to the real-time wind speed and N preset wind speed thresholds, and of course, the Nth dust collecting state corresponding to the Nth wind speed threshold is a state that the filter screen needs to be replaced or cleaned when the service life of the filter screen reaches.
And S130, prompting a user to replace or clean the filter screen when the filter screen reaches the ith dust collection state, and prompting the user to replace or clean the filter screen when the filter screen reaches the Nth dust collection state, wherein i =1,2, … and N-1. The specific accessible air purifier, air conditioner and fresh air system's respective display screen show tip information or send out the prompt tone in order reminding the user, and wherein, the tip information that shows can be the text message of changing or clearing up the filter screen. If the wind speed threshold is calibrated by Clean Air Delivery Rate (CADR), the CADR value of the filter screen in a Clean state can be compared with the CADR value of the filter screen in a current dust collection state. It should be noted that: under the condition that the filter screen must be changed or cleared up, then directly change corresponding HEPA filter screen, then clear up corresponding static filter screen.
According to the filter screen dust collection state detection method, the real-time wind speed can reflect the dust collection state of the filter screen, namely, more dust is collected, the slower the wind speed is, the current dust collection state of the filter screen can be judged through the real-time wind speed and the N wind speed threshold values, and therefore, the requirements of different users on the air quality can be met, the user can be prompted when the filter screen reaches the dust collection state before the service life, and the user can replace or clean the filter screen in advance according to the requirements of the user.
Specifically, step S120 includes: determining that the filter screen reaches an ith dust collection state under the condition that the real-time wind speed is less than an ith wind speed threshold and is more than or equal to an (i + 1) th wind speed threshold; and under the condition that the real-time wind speed is less than the Nth wind speed threshold value, determining that the dust collection filter screen reaches the Nth dust collection state.
In this embodiment, step S130 includes: when the filter screen reaches the ith dust collection state, prompting a user to replace or clean the filter screen in an ith prompting mode; and under the condition that the filter screen reaches the Nth dust collection state, an Nth prompting mode is adopted to prompt a user that the filter screen needs to be replaced or cleaned. Different prompting modes are adopted under different dust collecting states, so that the prompting mode which is easier to attract the attention of a user can be adopted under the condition that more and more particulate matters are adhered to the surface of the filter screen.
Preferably, N =2 or 3, avoiding frequent prompting due to too many wind speed threshold numbers being set.
Specifically, when N =3, step S120 includes:
and under the condition that the real-time wind speed is judged to be less than the first wind speed threshold and greater than or equal to the second wind speed threshold, the dust collection filter screen reaches a first dust collection state.
Or, under the condition that the real-time wind speed is judged to be less than the second wind speed threshold and greater than or equal to the third wind speed threshold, the dust collection filter screen reaches a second dust collection state.
Or, the dust collecting filter screen reaches a third dust collecting state when the real-time wind speed is judged to be smaller than a third wind speed threshold value.
The first wind speed threshold is greater than a second wind speed threshold, which is greater than a third wind speed threshold.
Wherein, the third dust collection state corresponds the collection dirt state that must be changed or the degree of depth clearance, and promptly when real-time wind speed is less than third wind speed threshold value, then the filter screen must be changed or the clearance, all is suitable for all users, and the collection dirt state that must be changed or the degree of depth clearance can be understood as a minimum standard state, therefore, third wind speed threshold value can be markd as the wind speed that wind speed sensor sensed when collection dirt filter screen is in the collection dirt state that must be changed or the degree of depth clearance, for example: after calibration, the wind speed at the moment is 25-35% of the wind speed under the condition that the filter screen is clean. First collection dirt state corresponds the collection dirt state that can change or slight clearance, the second collection dirt state corresponds the collection dirt state that can change or moderate clearance, these two collection dirt states do not necessarily change or clearance filter screen, therefore, first wind speed threshold value and second wind speed threshold value not only can mark when the product leaves the factory, can also be the wind speed setting value of receiving user's input as first wind speed threshold value and second wind speed threshold value, the user can carry out the self-setting according to own user demand, especially to some intelligent air purifier, intelligent air conditioner and intelligent new trend system, the APP in the intelligent terminal that the user's accessible corresponds sets for. For example: the first wind speed threshold value is set to be 60% -70% of the wind speed in the state that the filter screen is clean, and the second wind speed threshold value is set to be 45% -55% of the wind speed in the state that the filter screen is clean.
For N =3, step S130 includes:
the filter screen reaches under the condition of first collection dirt state, adopt first warning mode suggestion user, first warning mode is: and sending prompt information capable of replacing or cleaning the filter screen to a display screen of at least one of the product corresponding to the filter screen, the remote controller corresponding to the product and the intelligent control terminal for displaying. The displayed prompt message can be a text message for replacing or slightly cleaning the filter screen, and under the first prompting mode, some users with high requirements on air quality can replace or clean the filter screen, and other users can ignore the prompt.
The filter screen reaches under the condition of second collection dirt state, adopt the second to remind the mode and remind the user, the second reminds the mode and is: and sending prompt information for replacing or cleaning the filter screen to the display screen of at least one of the product corresponding to the filter screen, the product remote controller corresponding to the filter screen and the intelligent control terminal for displaying, and sending out prompt sound when the product is started every time. The displayed prompt message can be a text message for replacing or moderately cleaning the filter screen, and under the second prompting mode, some users with higher requirements on air quality may replace or clean the filter screen, and other users can ignore the prompt.
The filter screen reaches under the condition of third collection dirt state, adopt the third to remind the mode and remind the user, the third reminds the mode and is: the prompt information of replacing or cleaning the filter screen is sent to the display screen of at least one of the product corresponding to the filter screen, the product remote controller corresponding to the filter screen and the intelligent control terminal, the flicker display is carried out, a prompt sound is sent out when the product is started every time, and the prompt sound is repeated at intervals of preset duration. The prompt message that shows can be the text message that must change or degree of depth clearance filter screen, under the third mode of reminding, reminds all users to go to change or clear up the filter screen, sends the prompt tone when the product starts at every turn in addition, and interval predetermined duration is repeated the prompt tone is until the filter screen is changed or the clearance is accomplished.
In order to more accurately determine whether the filter screen reaches a corresponding dust collection state, especially a dust collection state that needs to be replaced or deeply cleaned, the method of this embodiment further includes a step of calibrating the wind speed threshold, and the specific flow is as shown in fig. 2, and includes:
step S210, obtaining the current clean air output ratio (CADR) or standard particulate matter removal rate (for example, PM2.5 removal rate) of the product corresponding to the filter screen. During the calibration process, the CADR and PM2.5 removal rates can be measured by adopting corresponding instruments.
And S220, judging whether the filter screen reaches a preset ith dust collection state or not according to the current clean air output ratio or the standard particulate matter removal rate. When the CADR and PM2.5 removal rates are lower than the ith predetermined standard, the filter screen is considered to reach the ith dust collection state, for example: especially when the CADR and PM2.5 removal rate is lower than the industry standard value, the dust collection amount of the field electric dust collection filter screen approaches to or even reaches the dust holding amount index, at the moment, the field electric dust collection filter screen reaches the Nth dust collection state, and a user needs to replace or clean the filter screen.
And step S230, when the filter screen reaches the ith dust collection state, acquiring the wind speed on the ventilation path of the filter screen at the moment as the ith wind speed threshold value.
Taking the CADR calibration as an example, for a certain air purification product, the CADR value in the clean state of the filter screen is 300, when the CADR value is reduced to 200, the dust collection state of the filter screen is considered to reach the replaceable or light cleaning state, the induced wind speed is 2/3 of the wind speed in the clean state of the filter screen, and the induced wind speed is provided with a first wind speed threshold value. When the CADR value is reduced to 150, the dust collection state of the filter screen is considered to reach a replaceable or medium cleaning state, the sensed wind speed is 1/2 of the wind speed of the filter screen in a clean state, and the sensed wind speed is set to be a second wind speed threshold value. When the CADR value is reduced to 100, the dust collection state of the filter screen is considered to reach a state that the filter screen needs to be replaced or deeply cleaned, the sensed wind speed is 1/3 of the wind speed of the filter screen in a clean state, and the sensed wind speed is set as a third wind speed threshold value.
The filter screen dust collecting state detecting device provided by the present invention is described below, and the filter screen dust collecting state detecting device described below and the filter screen dust collecting state detecting method described above may be referred to in correspondence with each other.
As shown in fig. 3, the present invention provides a filter screen dust collection status detection device, comprising:
and a real-time wind speed obtaining module 310 for obtaining the real-time wind speed on the ventilation path of the filter screen.
And the dust collection state judgment module 320 is configured to judge whether the filter screen reaches corresponding N dust collection states according to the real-time wind speed and N preset wind speed thresholds, where N is an integer greater than 1, and the ith wind speed threshold is greater than the (i + 1) th wind speed threshold.
And the user prompting module 330 is used for prompting a user to replace or clean the filter screen when the filter screen reaches the ith dust collection state, and prompting the user to replace or clean the filter screen when the filter screen reaches the nth dust collection state, wherein i =1,2, … and N-1.
The filter screen collection dirt state detection device of this embodiment, because the collection dirt state of filter screen can be reflected to real-time wind speed, and it is more to collect dirt promptly, and the wind speed is slower, and the current collection dirt state of filter screen is judged to real-time wind speed of accessible and N wind speed threshold value, consequently, to the requirement of different users to air quality, suggestion user when the filter screen reaches the collection dirt state before the life for the user changes in advance or clears up the filter screen according to own demand.
Optionally, the dust collection state judgment module 320 is specifically configured to:
and under the condition that the real-time wind speed is less than the ith wind speed threshold and is more than or equal to the (i + 1) th wind speed threshold, determining that the filter screen reaches the ith dust collection state.
And under the condition that the real-time wind speed is less than the Nth wind speed threshold value, determining that the dust collection filter screen reaches the Nth dust collection state.
Optionally, the user prompting module 330 is specifically configured to prompt a user to replace or clean the filter screen in an ith prompting manner when the filter screen reaches an ith dust collecting state; and under the condition that the filter screen reaches the Nth dust collection state, an Nth prompting mode is adopted to prompt a user that the filter screen needs to be replaced or cleaned.
Optionally, N =2 or 3.
Optionally, when N =3, the dust collection state judgment module 320 is specifically configured to:
and under the condition that the real-time wind speed is judged to be less than the first wind speed threshold and greater than or equal to the second wind speed threshold, the dust collection filter screen reaches a first dust collection state.
Or, under the condition that the real-time wind speed is judged to be less than the second wind speed threshold and greater than or equal to the third wind speed threshold, the dust collection filter screen reaches a second dust collection state.
Or, the dust collecting filter screen reaches a third dust collecting state when the real-time wind speed is judged to be smaller than a third wind speed threshold value.
The first wind speed threshold is greater than a second wind speed threshold, which is greater than a third wind speed threshold.
Optionally, when N =3, the user prompting module 330 is specifically configured to:
the filter screen reaches under the condition of first collection dirt state, adopt first warning mode suggestion user, first warning mode is: and sending prompt information capable of replacing or cleaning the filter screen to a display screen of at least one of a product corresponding to the filter screen, a remote controller corresponding to the product and the intelligent control terminal for displaying.
The filter screen reaches under the condition of second collection dirt state, adopt the second to remind the mode suggestion user, the second reminds the mode to be: and sending prompt information for replacing or cleaning the filter screen to the display screen of at least one of the product corresponding to the filter screen, the product remote controller corresponding to the filter screen and the intelligent control terminal for displaying, and sending out prompt sound when the product is started every time.
The filter screen reaches under the condition of third collection dirt state, adopt the third to remind the mode and remind the user, the third reminds the mode and is: the prompt information of replacing or cleaning the filter screen is sent to the display screen of at least one of the product corresponding to the filter screen, the product remote controller corresponding to the filter screen and the intelligent control terminal, the flicker display is carried out, a prompt sound is sent out when the product is started every time, and the prompt sound is repeated at intervals of preset duration.
Optionally, the filter screen dust collection state detection device of the present invention further includes: the wind speed threshold value calibration module is used for acquiring the current clean air output ratio or standard particulate matter removal rate of a product corresponding to the filter screen; judging whether the filter screen reaches a preset ith dust collection state or not according to the current clean air output ratio or the standard particulate matter removal rate; and when the filter screen reaches the ith dust collection state, acquiring the wind speed on the ventilation path of the filter screen at the moment as the ith wind speed threshold value.
Fig. 4 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 4: a processor (processor) 410, a communication Interface 420, a memory (memory) 430 and a communication bus 440, wherein the processor 410, the communication Interface 420 and the memory 430 are communicated with each other via the communication bus 440. The processor 410 may invoke logic instructions in the memory 430 to perform a filter screen dust collection status detection method comprising:
and acquiring the real-time wind speed on the ventilation path of the filter screen.
And judging whether the filter screen reaches N corresponding dust collection states or not according to the real-time wind speed and N preset wind speed thresholds, wherein N is an integer larger than 1, and the ith wind speed threshold is larger than the (i + 1) th wind speed threshold.
And prompting a user to replace or clean the filter screen when the filter screen reaches the ith dust collection state, and prompting the user to replace or clean the filter screen when the filter screen reaches the Nth dust collection state, wherein i =1,2, …, N-1.
In addition, the logic instructions in the memory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The present invention also provides an air purification apparatus comprising: filter screen, air velocity transducer and foretell electronic equipment, air velocity transducer sets up on the ventilation route of filter screen, electronic equipment connects air velocity transducer. In particular, the electronic device is connected to the wind speed sensor via a communication interface 420.
The air purification device can be an air purifier, an air conditioner with an air purification function and a fresh air system, and the electronic equipment can be understood as a main controller or a main control circuit board in the air purifier, the air conditioner with the air purification function and the fresh air system.
In another aspect, the present invention further provides a computer program product, the computer program product includes a computer program, the computer program can be stored on a non-transitory computer readable storage medium, when the computer program is executed by a processor, a computer can execute the method for detecting the filter screen dust collection state provided by the above methods, and the method includes:
and acquiring the real-time wind speed on the ventilation path of the filter screen.
And judging whether the filter screen reaches N corresponding dust collection states or not according to the real-time wind speed and N preset wind speed thresholds, wherein N is an integer larger than 1, and the ith wind speed threshold is larger than the (i + 1) th wind speed threshold.
And prompting a user to replace or clean the filter screen when the filter screen reaches the ith dust collection state, and prompting the user to replace or clean the filter screen when the filter screen reaches the Nth dust collection state, wherein i =1,2, …, N-1.
In still another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to perform the method for detecting the dust collecting state of a filter screen provided by the above methods, the method including:
and acquiring the real-time wind speed on the ventilation path of the filter screen.
And judging whether the filter screen reaches N corresponding dust collection states or not according to the real-time wind speed and N preset wind speed thresholds, wherein N is an integer larger than 1, and the ith wind speed threshold is larger than the (i + 1) th wind speed threshold.
And prompting a user to replace or clean the filter screen when the filter screen reaches the ith dust collection state, and prompting the user that the filter screen must be replaced or cleaned when the filter screen reaches the Nth dust collection state, wherein i =1,2, …, N-1.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will 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 of the embodiments of the present invention.
Claims (11)
1. A method for detecting the dust collecting state of a filter screen is characterized by comprising the following steps:
acquiring real-time wind speed on a ventilation path of a filter screen;
judging whether the filter screen reaches N corresponding dust collecting states or not according to the real-time wind speed and N preset wind speed thresholds, wherein N is an integer larger than 1, and the ith wind speed threshold is larger than the (i + 1) th wind speed threshold;
and prompting a user to replace or clean the filter screen when the filter screen reaches the ith dust collection state, and prompting the user to replace or clean the filter screen when the filter screen reaches the Nth dust collection state, wherein i =1,2, …, N-1.
2. The method for detecting the dust collecting state of the filter screen according to claim 1, wherein the step of judging whether the filter screen reaches the corresponding N dust collecting states according to the real-time wind speed and N preset wind speed thresholds comprises the steps of:
determining that the filter screen reaches an ith dust collection state under the condition that the real-time wind speed is less than an ith wind speed threshold and is more than or equal to an (i + 1) th wind speed threshold;
and under the condition that the real-time wind speed is less than the Nth wind speed threshold value, determining that the dust collection filter screen reaches the Nth dust collection state.
3. The method for detecting the dust collecting status of a filter screen according to claim 1, wherein the step of prompting a user to replace or clean the filter screen when the filter screen reaches the ith dust collecting status, and prompting the user that the filter screen must be replaced or cleaned when the filter screen reaches the nth dust collecting status comprises:
when the filter screen reaches the ith dust collection state, prompting a user to replace or clean the filter screen by adopting an ith prompting mode; and under the condition that the filter screen reaches the Nth dust collection state, an Nth prompting mode is adopted to prompt a user that the filter screen needs to be replaced or cleaned.
4. The method for detecting the dust collection state of a filter screen according to claim 1, wherein N =2 or 3.
5. The method for detecting the dust collecting state of the filter screen according to claim 1, wherein when N =3, the determining whether the filter screen reaches the corresponding N dust collecting states according to the real-time wind speed and N preset wind speed thresholds includes:
judging that the dust collection filter screen reaches a first dust collection state under the condition that the real-time wind speed is smaller than a first wind speed threshold and is larger than or equal to a second wind speed threshold;
or, the dust collection filter screen reaches a second dust collection state when the real-time wind speed is judged to be less than the second wind speed threshold and greater than or equal to a third wind speed threshold;
or, the dust collecting filter screen reaches a third dust collecting state when the real-time wind speed is judged to be less than a third wind speed threshold value,
the first wind speed threshold is greater than a second wind speed threshold, which is greater than a third wind speed threshold.
6. The method for detecting the dust collecting status of a filter screen according to claim 5, wherein the step of prompting a user to replace or clean the filter screen when the filter screen reaches the ith dust collecting status, and prompting the user that the filter screen must be replaced or cleaned when the filter screen reaches the nth dust collecting status comprises:
the filter screen reaches under the condition of first collection dirt state, adopt first warning mode suggestion user, first warning mode is: sending prompt information capable of replacing or cleaning the filter screen to a display screen of at least one of a product corresponding to the filter screen, a remote controller of the corresponding product and an intelligent control terminal for display;
the filter screen reaches under the condition of second collection dirt state, adopt the second to remind the mode and remind the user, the second reminds the mode and is: sending prompt information for replacing or cleaning the filter screen to a display screen of at least one of a product corresponding to the filter screen, a remote controller of the corresponding product and an intelligent control terminal for displaying, and sending a prompt tone when the product is started each time;
the filter screen reaches under the condition of third collection dirt state, adopt the third to remind the mode and remind the user, the third reminds the mode and is: the prompt information of replacing or cleaning the filter screen is sent to the display screen of at least one of the product corresponding to the filter screen, the product remote controller corresponding to the filter screen and the intelligent control terminal, the flicker display is carried out, a prompt sound is sent out when the product is started every time, and the prompt sound is repeated at intervals of preset duration.
7. The method for detecting the dust collecting state of a filter screen according to any one of claims 1 to 6, further comprising: calibrating the wind speed threshold value, including:
acquiring the current clean air output ratio or standard particulate matter removal rate of a product corresponding to a filter screen;
judging whether the filter screen reaches a preset ith dust collection state or not according to the current clean air output ratio or the standard particulate matter removal rate;
and when the filter screen reaches the ith dust collection state, acquiring the wind speed on the ventilation path of the filter screen at the moment as the ith wind speed threshold value.
8. A dust collection state detection device for a filter screen, comprising:
the real-time wind speed acquisition module is used for acquiring real-time wind speed on a ventilation path of the filter screen;
the dust collection state judgment module is used for judging whether the filter screen reaches corresponding N dust collection states according to the real-time wind speed and N preset wind speed thresholds, wherein N is an integer greater than 1, and the ith wind speed threshold is greater than the (i + 1) th wind speed threshold;
and the user prompting module is used for prompting a user to replace or clean the filter screen when the filter screen reaches the ith dust collection state, and prompting the user to replace or clean the filter screen when the filter screen reaches the nth dust collection state, wherein i =1,2, … and N-1.
9. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method for detecting a dust collection status of a filter screen according to any one of claims 1 to 7.
10. An air purification apparatus, comprising: filter screen, air velocity transducer and claim 9 the electronic equipment, air velocity transducer sets up on the ventilation path of filter screen, the electronic equipment is connected air velocity transducer.
11. A non-transitory computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the filter screen dust collection state detection method according to any one of claims 1 to 7.
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| CN202210868941.1A CN115218454A (en) | 2022-07-22 | 2022-07-22 | Filter screen dust collection state detection method and device and air purification device |
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| CN202210868941.1A CN115218454A (en) | 2022-07-22 | 2022-07-22 | Filter screen dust collection state detection method and device and air purification device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811805A (en) * | 2022-04-25 | 2022-07-29 | 珠海格力电器股份有限公司 | Self-cleaning method and device for filter screen of electric appliance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811805A (en) * | 2022-04-25 | 2022-07-29 | 珠海格力电器股份有限公司 | Self-cleaning method and device for filter screen of electric appliance |
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