CN107684801B - Formaldehyde filter screen replacing method and device for air purifier and air purifier - Google Patents
Formaldehyde filter screen replacing method and device for air purifier and air purifier Download PDFInfo
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- CN107684801B CN107684801B CN201710775912.XA CN201710775912A CN107684801B CN 107684801 B CN107684801 B CN 107684801B CN 201710775912 A CN201710775912 A CN 201710775912A CN 107684801 B CN107684801 B CN 107684801B
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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Abstract
The invention discloses a formaldehyde filter screen replacement reminding method and device for an air purifier, the air purifier and a storage medium, wherein the method comprises the following steps: the method comprises the steps of obtaining formaldehyde pollution concentration when the air purifier works, and determining the service life of the air purifier based on the formaldehyde pollution concentration and a preset formaldehyde pollution reference concentration; correcting the service life of a formaldehyde filter screen of the air purifier based on the service life of the air purifier and the initial reference service life of the air purifier; determining whether to generate reminding information according to the service life of the corrected formaldehyde filter screen; wherein, the reminding information is used for reminding the user of replacing or cleaning the formaldehyde filter screen.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a formaldehyde filter screen replacement reminding method and device for an air purifier, the air purifier and a storage medium.
Background
Air purifier is a filtered air's product, and present air purifier removes formaldehyde mainly adopts the mode of active carbon adsorption and decomposition to get rid of formaldehyde, and along with the increase of length of use, the filtration efficiency of formaldehyde filter screen can descend gradually among the air purifier, consequently needs carry out regular change or washing to the formaldehyde filter screen of clarifier.
At present, most of purifiers generally have the replacement reminding of a particle removing filter screen, but do not have the replacement reminding of the filter screen of a formaldehyde removing screen. The existing formaldehyde filter screen is replaced and reminded, and the service life of the formaldehyde filter screen is calculated by simply setting a fixed time countdown. It is thus clear that, among the prior art, the actual in-service behavior of the air purifier that does not paste more draws comes to change and reminds etc. and handle, consequently, the work efficiency scheduling problem that can't guarantee the clarifier can appear.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a formaldehyde filter screen replacement reminding method and device for an air purifier, the air purifier and a storage medium, and the method and device can solve the problem that the preset fixed life time and the actual life time of the formaldehyde filter screen are greatly different due to neglect of the change of formaldehyde pollution concentration when the purifier is used in the prior art.
In a first aspect, the invention provides a method for reminding replacement of a formaldehyde filter screen of an air purifier, which comprises the following steps:
the method comprises the steps of obtaining formaldehyde pollution concentration when the air purifier works, and determining the service life of the air purifier based on the formaldehyde pollution concentration and a preset formaldehyde pollution reference concentration;
correcting the service life of a formaldehyde filter screen of the air purifier based on the service life of the air purifier and the initial reference service life of the air purifier;
determining whether to generate reminding information according to the service life of the corrected formaldehyde filter screen; wherein, the reminding information is used for reminding the user of replacing or cleaning the formaldehyde filter screen.
Optionally, the method further includes the steps of obtaining formaldehyde pollution concentration when the air purifier works, and determining the service life of the air purifier before the use time of the air purifier is determined based on the formaldehyde pollution concentration and a preset formaldehyde pollution reference concentration:
and determining the initial reference life of the formaldehyde filter screen based on the preset reference concentration of formaldehyde pollution.
Optionally, the determining an initial reference life time of the formaldehyde filter screen based on a preset reference concentration of formaldehyde pollution comprises:
calculating to obtain the formaldehyde treatment capacity of the corresponding air purifier in unit time based on the preset reference concentration of formaldehyde pollution;
and calculating the service life of the formaldehyde filter screen based on the formaldehyde treatment capacity of the air purifier in unit time and the accumulated formaldehyde purification capacity of the air purifier.
Optionally, acquire formaldehyde pollution concentration at air purifier during operation, based on formaldehyde pollution concentration and predetermined formaldehyde pollution reference concentration, determine air purifier's length of use, still include:
respectively obtaining N corresponding formaldehyde pollution concentrations in N times; n is an integer greater than or equal to 1; respectively calculating N service lives of the air purifier based on the N formaldehyde pollution concentrations and a preset formaldehyde pollution reference concentration;
correspondingly, based on when air purifier's the use time reach air purifier's initial reference life-span, it is right air purifier's formaldehyde filter screen life-span revises, include:
based on the initial reference life of the formaldehyde filter screen and the N service lives of the air purifier, the service life of the formaldehyde filter screen of the air purifier is corrected.
Optionally, based on length of time of use of air purifier and air purifier's initial reference life-span, it is right air purifier's formaldehyde filter screen life-span revises, include:
correcting the service life of a formaldehyde filter screen of the air purifier based on the initial reference service life of the formaldehyde filter screen and the service life of the air purifier;
correspondingly, the method further comprises the following steps:
and taking the service life of the corrected formaldehyde filter screen as the initial reference service life of the updated formaldehyde filter screen.
Optionally, when determining the usage time of the air purifier, the method further comprises:
if the obtained formaldehyde pollution concentration is consistent with the preset formaldehyde pollution reference concentration, the using time of the air purifier does not need to be corrected;
and if the obtained formaldehyde pollution concentration is inconsistent with the preset formaldehyde pollution reference concentration, correcting the service life of the air purifier.
Optionally, the correcting the air purifier use duration comprises:
using the ratio of the formaldehyde pollution concentration to a preset formaldehyde pollution reference concentration as a correction coefficient; and correcting the service life of the air purifier by adopting the correction coefficient to obtain the corrected service life of the air purifier.
In a second aspect, the present invention provides a formaldehyde filter screen replacement reminding device for an air purifier, the device comprising:
the correction unit is used for acquiring the formaldehyde pollution concentration when the air purifier works, and determining the service life of the air purifier based on the formaldehyde pollution concentration and a preset formaldehyde pollution reference concentration; correcting the service life of a formaldehyde filter screen of the air purifier based on the service life of the air purifier and the initial reference service life of the air purifier;
the reminding unit is used for determining whether reminding information is generated or not according to the service life of the corrected formaldehyde filter screen; wherein, the reminding information is used for reminding the user of replacing or cleaning the formaldehyde filter screen.
Optionally, the apparatus further comprises:
and the determining unit is used for determining the initial reference life of the formaldehyde filter screen based on the preset reference concentration of formaldehyde pollution.
Optionally, the determining unit is specifically configured to:
calculating to obtain the formaldehyde treatment capacity of the corresponding air purifier in unit time based on the preset reference concentration of formaldehyde pollution; and calculating the service life of the formaldehyde filter screen based on the formaldehyde treatment capacity of the air purifier in unit time and the accumulated formaldehyde purification capacity of the air purifier.
Optionally, the correction unit is specifically configured to:
respectively obtaining N corresponding formaldehyde pollution concentrations in N times; n is an integer greater than or equal to 1; respectively calculating N service lives of the air purifier based on the N formaldehyde pollution concentrations and a preset formaldehyde pollution reference concentration;
and the number of the first and second groups,
based on the initial reference life of the formaldehyde filter screen and the N service lives of the air purifier, the service life of the formaldehyde filter screen of the air purifier is corrected.
Optionally, the correction unit is specifically configured to:
correcting the service life of a formaldehyde filter screen of the air purifier based on the initial reference service life of the formaldehyde filter screen and the service life of the air purifier;
and taking the service life of the corrected formaldehyde filter screen as the initial reference service life of the updated formaldehyde filter screen.
Optionally, the correction unit is specifically configured to:
if the formaldehyde pollution concentration of the air purifier in use is consistent with the preset formaldehyde pollution reference concentration, the use time of the air purifier does not need to be corrected;
if the formaldehyde pollution concentration of the air purifier during use is inconsistent with the preset formaldehyde pollution reference concentration, the using time of the air purifier needs to be corrected.
Optionally, the correction unit is specifically configured to:
and correcting the service life of the air purifier by using the correction coefficient by using the ratio of the formaldehyde pollution concentration to the preset formaldehyde pollution reference concentration as the correction coefficient to obtain the corrected service life.
In a third aspect, the invention provides an air purifier, which comprises any one of the formaldehyde filter screen replacement reminding devices.
In a fourth aspect, the present invention provides an air purifier comprising a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to perform the steps of the aforementioned method when running the computer program.
In a fifth aspect, the invention provides a storage medium, characterized in that it has stored thereon a computer program, wherein the computer program, when executed by a processor, implements the steps of the aforementioned method.
According to the technical scheme, the invention provides the formaldehyde filter screen replacement reminding method and device for the air purifier and the air purifier, wherein when the air purifier is used, the service life of the formaldehyde filter screen is corrected according to the formaldehyde pollution concentration when the air purifier is used and the preset formaldehyde pollution reference concentration; and reminding a user to replace or clean the formaldehyde filter screen according to the service life of the corrected formaldehyde filter screen. Therefore, according to the deviation comparison between the indoor environment formaldehyde pollution concentration and the preset formaldehyde pollution reference concentration when the air purifier is used, the service life of the formaldehyde filter screen determined according to the preset formaldehyde pollution reference concentration is corrected, the purpose of calculating the service life of the formaldehyde filter screen more scientifically is achieved, and a user is timely reminded to replace or clean the formaldehyde filter screen to avoid secondary pollution while the formaldehyde filter screen is fully utilized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for reminding replacement of a formaldehyde filter screen of an air purifier according to an embodiment of the present invention 1;
fig. 2 is a schematic flow chart of a method for reminding replacement of a formaldehyde filter screen of an air purifier according to an embodiment of the present invention 2;
fig. 3 is a schematic structural view of a formaldehyde filter screen replacement reminding device of an air purifier according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
Fig. 1 is a schematic flow chart of a method for reminding replacement of a formaldehyde filter screen of an air purifier in an embodiment of the present invention, and as shown in fig. 1, the method includes the following steps:
step 1, obtaining formaldehyde pollution concentration when an air purifier works, and determining the service life of the air purifier based on the formaldehyde pollution concentration and a preset formaldehyde pollution reference concentration;
For the above method steps, this embodiment is described in detail with reference to fig. 2:
step S1: and determining the initial reference life time of the formaldehyde filter screen based on the preset reference concentration of formaldehyde pollution.
First, in fig. 2, before step 1 in fig. 1 is executed, it is necessary to obtain initial reference lifetime parameters,
in particular, the national standard (air purifier GB/T18801-: the national standard requires that the concentration level of formaldehyde in the indoor environment is maintained to be 0.1mg/m3 and below, and in order to maintain the concentration level of formaldehyde in the indoor environment to be 0.1mg/m3 and below, the mass of formaldehyde treated after the purifier works for t hours is at least as follows:
mAC≥kv(CO-0.1)S×h×t (1)
wherein the number of times of ventilation of the building is kvThe value can be set according to the actual situation, for example, the value can be set to 0.6 h-1; the value of the room height h can also be set according to the actual situation, for example, 2.4m, 5m and the like can be taken, and the process is not exhaustive; background concentration of indoor formaldehyde pollutants COMeasuring according to national standard relevant regulations; the purifier use area S is a purifier performance index value.
The initial reference life time of the formaldehyde filter screen is determined based on the preset reference concentration of formaldehyde pollution, and comprises the following steps:
calculating to obtain the formaldehyde treatment capacity of the corresponding air purifier in unit time based on the preset reference concentration of formaldehyde pollution;
and calculating the service life of the formaldehyde filter screen based on the formaldehyde treatment capacity of the air purifier in unit time and the accumulated formaldehyde purification capacity of the air purifier.
In particular, a fixed formaldehyde contamination concentration C can be selectedGAs the preset reference concentration of formaldehyde pollution and according to the preset reference concentration C of formaldehyde pollutionGCalculating by adopting the formula (2) to obtain the preset reference concentration C of formaldehyde pollutionGLife T of formaldehyde filterGeneral assembly：
Wherein M isFormaldehyde (I)The accumulated purification amount m of formaldehyde of the air purifierGIs a preset reference concentration C of formaldehyde pollutionGFormaldehyde treatment capacity per unit time of the lower air purifier. Wherein, CGIt is understood that a fixed environmental formaldehyde pollution concentration, for example, 0.2mg/m3 can be selected; the selection mode can be a concentration level slightly higher than the international standard requirement of 0.1mg/m3, specifically, the concentration level higher than the international standard requirement can be calculated according to the actual situation, of course, the concentration level required by the international standard can be selected under certain circumstances, and the embodiment is not limited and is not exhaustive.
Step S2: obtain formaldehyde pollution concentration at air purifier during operation, based on formaldehyde pollution concentration and predetermined formaldehyde pollution reference concentration, it is long when confirming air purifier's use.
In this step, acquire formaldehyde pollution concentration at air purifier during operation, based on formaldehyde pollution concentration and predetermined formaldehyde pollution reference concentration, it is long when confirming air purifier's duration of use, still include:
respectively obtaining N corresponding formaldehyde pollution concentrations in N times; n is an integer greater than or equal to 1; respectively calculating N service lives of the air purifier based on the N formaldehyde pollution concentrations and a preset formaldehyde pollution reference concentration;
the selection of N may be a periodic selection of time, for example, a time may be selected every preset hour; in addition, it is understood that the selection of N times may also be randomly selected, for example, the concentration collection may be performed according to a time point manually selected by a user.
Step S3: based on the length of time of use of the air purifier and the initial reference life of the air purifier, the life of a formaldehyde filter screen of the air purifier is corrected.
Understandably, when the air purifier is used, the higher the environmental formaldehyde pollution concentration is, the faster the formaldehyde filter screen is consumed, and the lower the environmental formaldehyde pollution concentration is, the slower the formaldehyde filter screen is consumed.
Therefore, the attenuation time of the formaldehyde filter screen is corrected according to the deviation comparison between the formaldehyde pollution concentration in a certain time period and the preset formaldehyde pollution reference concentration during real use, so that the aim of calculating the consumption degree of the formaldehyde filter screen more scientifically is fulfilled.
Specifically, based on when air purifier's the use time and air purifier's initial reference life-span, it is right air purifier's formaldehyde filter screen life-span revises, includes:
based on the initial reference life of the formaldehyde filter screen and the N service lives of the air purifier, the service life of the formaldehyde filter screen of the air purifier is corrected.
It should be noted that if the formaldehyde pollution concentration of the air purifier during use is consistent with the preset formaldehyde pollution reference concentration, the use time of the air purifier corresponding to the formaldehyde pollution concentration does not need to be corrected; if the formaldehyde pollution concentration of the air purifier during use is inconsistent with the preset formaldehyde pollution reference concentration, the service life of the air purifier corresponding to the formaldehyde pollution concentration needs to be corrected.
According to the formaldehyde pollution concentration C of the air purifier in useNThe formaldehyde pollution concentration CNTime t is used to air purifier who correspondsNZAnd the preset reference concentration C of formaldehyde pollutionGThe calculation may specifically be: and correcting the service life of the air purifier by using the correction coefficient by using the ratio of the formaldehyde pollution concentration to the preset formaldehyde pollution reference concentration as the correction coefficient to obtain the corrected service life.
And calculating the service life of the formaldehyde filter screen and the difference between the corrected service lives of the formaldehyde filter screens, and taking the difference as the service life of the corrected formaldehyde filter screen.
S4: determining whether to generate reminding information according to the service life of the corrected formaldehyde filter screen; wherein, the reminding information is used for reminding the user of replacing or cleaning the formaldehyde filter screen.
Specifically, the decay time of the formaldehyde filter screen is corrected according to the formaldehyde pollution concentration of the indoor environment where the purifier is located during actual use, and a prompt for replacing the formaldehyde filter screen or cleaning the formaldehyde filter screen is sent until the remaining life time of the formaldehyde filter screen is 0.
In the embodiment, the service life of the formaldehyde filter screen corresponding to the preset reference concentration of formaldehyde pollution is obtained; when the air purifier is used, correcting the service life of the formaldehyde filter screen according to the formaldehyde pollution concentration of the air purifier during use, the use time of the air purifier corresponding to the formaldehyde pollution concentration and the preset formaldehyde pollution reference concentration; and reminding a user to replace or clean the formaldehyde filter screen according to the service life of the corrected formaldehyde filter screen. So, this embodiment goes the correction according to the formaldehyde filter screen life-span that predetermined formaldehyde pollution reference concentration confirmed according to indoor environment formaldehyde pollution concentration when air purifier uses, reaches the purpose that calculates formaldehyde filter screen life-span more scientifically, when guaranteeing that the formaldehyde filter screen can obtain make full use of, in time reminds the user to change or wash the formaldehyde filter screen in order to avoid secondary pollution.
In an optional embodiment of the invention, when determining the length of time of use of the air purifier, the method further comprises: if the obtained formaldehyde pollution concentration is consistent with the preset formaldehyde pollution reference concentration, the using time of the air purifier does not need to be corrected;
and if the obtained formaldehyde pollution concentration is inconsistent with the preset formaldehyde pollution reference concentration, correcting the service life of the air purifier.
The air purifier use duration is revised, including:
using the ratio of the formaldehyde pollution concentration to a preset formaldehyde pollution reference concentration as a correction coefficient;
and correcting the service life of the air purifier by adopting the correction coefficient to obtain the corrected service life of the air purifier.
Specifically, according to the formaldehyde pollution concentration C of the air purifier in useNThe formaldehyde pollution concentration CNTime t is used to air purifier who correspondsNZAnd the preset reference concentration C of formaldehyde pollutionGThe formaldehyde pollution concentration C is corrected by adopting a correction formula shown in a formula (3)NTime t is used to air purifier who correspondsNZAnd (5) correcting:
obtaining the service life remaining time of the formaldehyde filter screen according to the formula (4) according to the corrected time:
Tremainder of＝TGeneral assembly-tN(4)
Wherein m isNAs concentration of formaldehyde contamination CNFormaldehyde in unit time of lower air purifierRational amount, tNAccording to the formaldehyde pollution concentration to tNZTime after correction, TRemainder ofThe residual time of the service life of the formaldehyde filter screen.
Further, step S4 specifically includes:
according to the formaldehyde pollution concentration's when air purifier uses change, adopt formula (5) right formaldehyde filter screen life-span constantly revises:
Tremainder of＝TGeneral assembly-t1-t2-t3-…tN(5)
When the residual life time T of the formaldehyde filter screen isRemainder ofWhen the number is 0, reminding a user to replace or clean the formaldehyde filter screen;
wherein, t1、t2、t3、tNThe time is corrected according to different formaldehyde pollution concentrations; n is a positive integer greater than or equal to 1.
Specifically, when the air purifier is used, the corrected time according to different average environmental formaldehyde pollution concentrations is t1、t2、t3、…tNThen at the preset life T of the formaldehyde filter screenGeneral assemblyThe corrected time is sequentially subtracted on the basis of the total time until the residual time T of the service life of the formaldehyde filter screenRemainder ofAnd when the formaldehyde filtering net is 0, reminding a user to replace or clean the formaldehyde filtering net.
Or correcting the service life of the formaldehyde filter screen of the air purifier based on the initial reference service life of the formaldehyde filter screen and the service life of the air purifier; taking the corrected service life of the formaldehyde filter screen as the initial reference service life of the updated formaldehyde filter screen;
that is, the service life of the formaldehyde filter screen after the first correction is obtained by subtracting the service life of the formaldehyde filter screen after the first correction from the service life of the initial formaldehyde filter screen; when the correction is carried out again, the service life of the formaldehyde filter screen after the previous correction is adopted to subtract the service life after the correction again, so that the service life of the formaldehyde filter screen after the correction again is obtained; and analogizing until the service life of the corrected formaldehyde filter screen is zero.
The above formula may be, TRemainder of＝TGeneral assembly-tN(ii) a And in the next calculation, the remaining time length obtained in the last calculation is used as the total time length of the next calculation, namely the initial reference life, such as TGeneral assembly＝TRemainder of。
In an optional embodiment of the invention, the method further comprises: when the air purifier is used, the formaldehyde sensor is adopted to obtain the indoor environment formaldehyde pollution concentration.
For example, assuming an existing air purifier, the accumulated purification amount MFormaldehyde (I)1500mg, the using area S is 20 square meters, and a fixed environmental formaldehyde pollution concentration C is selectedGIs 0.2mg/m3To calculate the theoretical life of the formaldehyde filter at this concentration:
if the filter is initially used, the filter is used for 10 hours in an environment with an environment concentration of 0.2mg/m3, since the concentration is consistent with the initially selected fixed concentration, no correction is needed, and the filter residual life can be obtained by directly subtracting 10 hours from the total life, wherein tototal-10, 520-10, and 510 hours.
Suppose t continues to be usedNZ10 hours, the average formaldehyde contamination concentration in 10 hours is 0.3mg/m3, and if there is a deviation from the fixed concentration, it is necessary to adjust tNZAnd (5) correcting:
the machine actually uses the standard time of 10 hours, but because the environmental formaldehyde pollution concentration is higher than the fixed formaldehyde concentration of the calculated service life, the service life of the formaldehyde filter screen is consumed relatively quickly, and 20 hours need to be subtracted from the residual time after the correction according to the formula: t remaining 510-20 490 hours.
By analogy, the service life of the formaldehyde filter screen is corrected according to the environmental formaldehyde pollution concentration on the condition of use in a set time period, and a prompt for replacing the formaldehyde filter screen or cleaning the formaldehyde filter screen is sent until the T surplus is 0.
Fig. 3 is a schematic structural view of a formaldehyde filter screen replacement reminding device of an air purifier in an embodiment of the present invention, and as shown in fig. 3, the device includes:
the correcting unit 202 is used for acquiring the formaldehyde pollution concentration when the air purifier works, and determining the service life of the air purifier based on the formaldehyde pollution concentration and a preset formaldehyde pollution reference concentration; correcting the service life of a formaldehyde filter screen of the air purifier based on the service life of the air purifier and the initial reference service life of the air purifier;
the reminding unit 203 is used for determining whether to generate reminding information according to the service life of the corrected formaldehyde filter screen; wherein, the reminding information is used for reminding the user of replacing or cleaning the formaldehyde filter screen.
The device further comprises: the determining unit 201 is used for determining the initial reference life of the formaldehyde filter screen based on the preset reference concentration of formaldehyde pollution.
In this embodiment, the life of the formaldehyde filter screen corresponding to the preset reference concentration of formaldehyde pollution is obtained by the determining unit 201; when the air purifier is used, the correcting unit 202 corrects the service life of the formaldehyde filter screen according to the formaldehyde pollution concentration of the air purifier, the using time of the air purifier corresponding to the formaldehyde pollution concentration and the preset formaldehyde pollution reference concentration; the reminding unit 203 reminds the user to replace or clean the formaldehyde filter screen according to the corrected service life of the formaldehyde filter screen. So, this embodiment goes the correction according to the formaldehyde filter screen life-span that predetermined formaldehyde pollution reference concentration confirmed according to indoor environment formaldehyde pollution concentration when air purifier uses, reaches the purpose that calculates formaldehyde filter screen life-span more scientifically, when guaranteeing that the formaldehyde filter screen can obtain make full use of, in time reminds the user to change or wash the formaldehyde filter screen in order to avoid secondary pollution.
In an optional embodiment of the present invention, the determining unit 201 calculates, based on a preset reference concentration of formaldehyde pollution, a formaldehyde treatment capacity of the corresponding air purifier in a unit time; and calculating to obtain the initial reference life of the formaldehyde filter screen based on the formaldehyde treatment capacity of the air purifier in unit time and the accumulated formaldehyde purification capacity of the air purifier.
For example, according to a predetermined reference concentration C of formaldehyde pollutionGCalculating by adopting a formula I to obtain the preset reference concentration C of formaldehyde pollutionGLife T of formaldehyde filterGeneral assembly：
Wherein M isFormaldehyde (I)The accumulated purification amount m of formaldehyde of the air purifierGIs a preset reference concentration C of formaldehyde pollutionGFormaldehyde treatment amount per unit time of lower air purifier, and air change times k of buildingvThe value is 0.6h-1, the room height h is 2.4m, S is the using area of the purifier, and t is the working time of the air purifier.
Further, the correcting unit 202 is specifically configured to:
respectively obtaining N corresponding formaldehyde pollution concentrations in N times; n is an integer greater than or equal to 1; respectively calculating N service lives of the air purifier based on the N formaldehyde pollution concentrations and a preset formaldehyde pollution reference concentration;
and the number of the first and second groups,
based on the initial reference life of the formaldehyde filter screen and the N service lives of the air purifier, the service life of the formaldehyde filter screen of the air purifier is corrected.
The correcting unit 202 is specifically configured to: if the formaldehyde pollution concentration of the air purifier in use is consistent with the preset formaldehyde pollution reference concentration, the use time of the air purifier does not need to be corrected;
if the formaldehyde pollution concentration of the air purifier during use is inconsistent with the preset formaldehyde pollution reference concentration, the using time of the air purifier needs to be corrected.
The correcting unit 202 is specifically configured to: the method comprises the steps that the ratio of formaldehyde pollution concentration to preset formaldehyde pollution reference concentration is used as a correction coefficient, the use duration of the air purifier is corrected by the correction coefficient, and the corrected use duration is obtained; and calculating the service life of the formaldehyde filter screen and the difference between the corrected service lives of the formaldehyde filter screens, and taking the difference as the service life of the corrected formaldehyde filter screen.
Specifically, the formaldehyde pollution concentration C can be determined according to the use of the air purifierNThe formaldehyde pollution concentration CNTime t is used to air purifier who correspondsNZAnd the preset reference concentration C of formaldehyde pollutionGThe formaldehyde pollution concentration C is corrected by adopting a correction formula shown in a formula IINTime t is used to air purifier who correspondsNZAnd (5) correcting:
and according to the corrected time, obtaining the service life remaining time of the formaldehyde filter screen according to a formula III:
Tremainder of＝TGeneral assembly-tNFormula three
Wherein m isNAs concentration of formaldehyde contamination CNFormaldehyde treatment amount per unit time, t, of lower air purifierNAccording to the formaldehyde pollution concentration to tNZTime after correction, TRemainder ofThe residual time of the service life of the formaldehyde filter screen.
Further, the reminding unit 203 is specifically configured to:
according to the formaldehyde pollution concentration's when air purifier uses change, adopt formula four right formaldehyde filter screen life-span constantly revises:
Tremainder of＝TGeneral assembly-t1-t2-t3-…tNFormula four
When the residual life time T of the formaldehyde filter screen isRemainder ofWhen the number is 0, reminding a user to replace or clean the formaldehyde filter screen;
wherein, t1、t2、t3、tNAccording to different formaldehydeTime after correction of contamination concentration; n is a positive integer greater than or equal to 1.
Or correcting the service life of the formaldehyde filter screen of the air purifier based on the initial reference service life of the formaldehyde filter screen and the service life of the air purifier; taking the corrected service life of the formaldehyde filter screen as the initial reference service life of the updated formaldehyde filter screen;
that is, the service life of the formaldehyde filter screen after the first correction is obtained by subtracting the service life of the formaldehyde filter screen after the first correction from the service life of the initial formaldehyde filter screen; when the correction is carried out again, the service life of the formaldehyde filter screen after the previous correction is adopted to subtract the service life after the correction again, so that the service life of the formaldehyde filter screen after the correction again is obtained; and analogizing until the service life of the corrected formaldehyde filter screen is zero.
The above formula may be, TRemainder of＝TGeneral assembly-tN(ii) a And in the next calculation, the remaining time length obtained in the last calculation is used as the total time length of the next calculation, namely the initial reference life, such as TGeneral assembly＝TRemainder of。
In an optional embodiment of the invention, the modifying unit further comprises: and the acquisition subunit is used for acquiring the indoor environment formaldehyde pollution concentration by adopting a formaldehyde sensor when the air purifier is used.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
An embodiment of the invention provides an air purifier, which comprises a formaldehyde filter screen replacement reminding device of the air purifier in any one of the embodiments. Because this air purifier includes any one of above-mentioned air purifier's formaldehyde filter screen and changes reminding device, therefore can solve same technical problem to obtain same technological effect.
An embodiment of the present invention provides a household appliance, including the automatic detection device for a touch key in any of the above embodiments. The household appliance comprises the automatic detection device of any touch key, so that the same technical problems can be solved, and the same technical effects can be obtained.
The present application further provides an air purifier comprising a processor and a memory for storing a computer program capable of running on the processor, wherein the processor when executing performs the steps of the aforementioned method, which are not described herein again.
The present application further provides a storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the aforementioned method, which are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, an apparatus, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (13)
1. The utility model provides a formaldehyde filter screen replacement reminding method of air purifier, which is characterized in that the method comprises the following steps:
the method comprises the steps of obtaining the concentration of formaldehyde pollutants when the air purifier works, and determining the service life of the air purifier based on the concentration of the formaldehyde pollutants and a preset reference concentration of the formaldehyde pollutants;
when determining the usage period of the air purifier, the method further includes:
if the obtained formaldehyde pollution concentration is consistent with the preset formaldehyde pollution reference concentration, the using time of the air purifier does not need to be corrected;
if the obtained formaldehyde pollution concentration is inconsistent with the preset formaldehyde pollution reference concentration, correcting the service life of the air purifier;
the air purifier use duration is revised, including:
using the ratio of the formaldehyde pollution concentration to a preset formaldehyde pollution reference concentration as a correction coefficient;
correcting the service life of the air purifier by adopting the correction coefficient to obtain the corrected service life of the air purifier;
correcting the service life of a formaldehyde filter screen of the air purifier based on the service life of the air purifier and the initial reference service life of the air purifier;
determining whether to generate reminding information according to the service life of the corrected formaldehyde filter screen; wherein, the reminding information is used for reminding the user of replacing or cleaning the formaldehyde filter screen.
2. The method of claim 1, wherein prior to obtaining the formaldehyde contaminant concentration while the air purifier is in operation, the method further comprises:
and determining the initial reference life of the formaldehyde filter screen based on the preset reference concentration of formaldehyde pollution.
3. The method of claim 2, wherein determining an initial reference life of the formaldehyde screen based on a preset reference concentration of formaldehyde contamination comprises:
calculating to obtain the formaldehyde treatment capacity of the corresponding air purifier in unit time based on the preset reference concentration of formaldehyde pollution;
and calculating the initial reference life of the formaldehyde filter screen based on the formaldehyde treatment capacity of the air purifier in unit time and the accumulated formaldehyde purification capacity of the air purifier.
4. The method of claim 2,
acquire formaldehyde pollution concentration at air purifier during operation, based on formaldehyde pollution concentration and predetermined formaldehyde pollution reference concentration, it is long when confirming air purifier's use, still include:
respectively obtaining N corresponding formaldehyde pollution concentrations in N times; n is an integer greater than or equal to 1; respectively calculating N service lives of the air purifier based on the N formaldehyde pollution concentrations and a preset formaldehyde pollution reference concentration;
correspondingly, based on when air purifier's the use time reach air purifier's initial reference life-span, it is right air purifier's formaldehyde filter screen life-span revises, include:
based on the initial reference life of the formaldehyde filter screen and the N service lives of the air purifier, the service life of the formaldehyde filter screen of the air purifier is corrected.
5. The method of claim 1, wherein modifying the formaldehyde filter screen life of the air purifier based on the length of time the air purifier was used and an initial reference life of the air purifier comprises:
correcting the service life of a formaldehyde filter screen of the air purifier based on the initial reference service life of the formaldehyde filter screen and the service life of the air purifier;
correspondingly, the method further comprises the following steps:
and taking the service life of the corrected formaldehyde filter screen as the initial reference service life of the updated formaldehyde filter screen.
6. The utility model provides an air purifier's formaldehyde filter screen changes reminding device, a serial communication port, the device includes:
the correction unit is used for acquiring the formaldehyde pollution concentration when the air purifier works, and determining the service life of the air purifier based on the formaldehyde pollution concentration and a preset formaldehyde pollution reference concentration; correcting the service life of a formaldehyde filter screen of the air purifier based on the service life of the air purifier and the initial reference service life of the air purifier;
the correction unit is specifically configured to:
if the formaldehyde pollution concentration of the air purifier in use is consistent with the preset formaldehyde pollution reference concentration, the use time of the air purifier does not need to be corrected;
if the formaldehyde pollution concentration of the air purifier in use is inconsistent with the preset formaldehyde pollution reference concentration, correcting the use time of the air purifier;
the correction unit is specifically configured to:
the method comprises the steps that the ratio of formaldehyde pollution concentration to preset formaldehyde pollution reference concentration is used as a correction coefficient, the use duration of the air purifier is corrected by the correction coefficient, and the corrected use duration is obtained;
the reminding unit is used for determining whether reminding information is generated or not according to the service life of the corrected formaldehyde filter screen; wherein, the reminding information is used for reminding the user of replacing or cleaning the formaldehyde filter screen.
7. The apparatus of claim 6, further comprising: and the determining unit is used for determining the initial reference life of the formaldehyde filter screen based on the preset reference concentration of formaldehyde pollution.
8. The apparatus according to claim 7, wherein the determining unit is specifically configured to:
calculating to obtain the formaldehyde treatment capacity of the corresponding air purifier in unit time based on the preset reference concentration of formaldehyde pollution; and calculating the service life of the formaldehyde filter screen based on the formaldehyde treatment capacity of the air purifier in unit time and the accumulated formaldehyde purification capacity of the air purifier.
9. The apparatus according to claim 7, wherein the modification unit is specifically configured to:
respectively obtaining N corresponding formaldehyde pollution concentrations in N times; n is an integer greater than or equal to 1; respectively calculating N service lives of the air purifier based on the N formaldehyde pollution concentrations and a preset formaldehyde pollution reference concentration;
and the number of the first and second groups,
based on the initial reference life of the formaldehyde filter screen and the N service lives of the air purifier, the service life of the formaldehyde filter screen of the air purifier is corrected.
10. The apparatus according to claim 6, wherein the modification unit is specifically configured to: correcting the service life of a formaldehyde filter screen of the air purifier based on the initial reference service life of the formaldehyde filter screen and the service life of the air purifier; and
and taking the service life of the corrected formaldehyde filter screen as the initial reference service life of the updated formaldehyde filter screen.
11. An air purifier, characterized in that, comprises the formaldehyde filter screen replacement reminding device of the air purifier as claimed in any one of claims 6 to 10.
12. An air purifier comprising a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is adapted to perform the steps of the method of any one of claims 1 to 5 when running the computer program.
13. A storage medium, having stored thereon a computer program, wherein the computer program, when executed by a processor, performs the steps of the method of any of claims 1-5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710339073.7A CN107115757A (en) | 2017-05-15 | 2017-05-15 | The formaldehyde screen replacing method and device of air purifier, air purifier |
| CN2017103390737 | 2017-05-15 |
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| CN107684801A CN107684801A (en) | 2018-02-13 |
| CN107684801B true CN107684801B (en) | 2020-04-10 |
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| CN201710339073.7A Pending CN107115757A (en) | 2017-05-15 | 2017-05-15 | The formaldehyde screen replacing method and device of air purifier, air purifier |
| CN201710775912.XA Active CN107684801B (en) | 2017-05-15 | 2017-08-31 | Formaldehyde filter screen replacing method and device for air purifier and air purifier |
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| CN107514690A (en) * | 2017-08-30 | 2017-12-26 | 广东美的制冷设备有限公司 | Reminding method and conditioner |
| CN107886688B (en) * | 2017-11-10 | 2019-08-30 | 广东美的厨房电器制造有限公司 | Clean method, system and the household electrical appliance of reminder time |
| WO2019196016A1 (en) * | 2018-04-10 | 2019-10-17 | 广东美的制冷设备有限公司 | Air purification device and method for estimating service life of filter thereof |
| CN109406132B (en) * | 2018-12-24 | 2020-08-25 | 广东美的制冷设备有限公司 | Filter element service life monitoring method and device and air purification equipment |
| CN109959116A (en) * | 2019-03-21 | 2019-07-02 | 佛山市顺德区阿波罗环保器材有限公司 | A kind of display methods and device in air purifier active carbon filter screen service life |
| CN110567068B (en) * | 2019-09-27 | 2024-03-12 | 安徽江航爱唯科环境科技有限公司 | Device and method for maintaining safety of indoor formaldehyde content |
| CN113819577B (en) * | 2021-09-17 | 2022-10-28 | 青岛海尔空调器有限总公司 | Filth blockage detection method, filth blockage detection device, purifier, electronic equipment and storage medium |
| CN115530677B (en) * | 2022-09-23 | 2023-10-20 | 苏州派特纳智能科技有限公司 | Cleaning robot and control method for cleaning robot |
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