CN110686383B - Filter screen effectiveness judgment method, air purifier and computer readable storage medium - Google Patents
Filter screen effectiveness judgment method, air purifier and computer readable storage medium Download PDFInfo
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- CN110686383B CN110686383B CN201911014157.9A CN201911014157A CN110686383B CN 110686383 B CN110686383 B CN 110686383B CN 201911014157 A CN201911014157 A CN 201911014157A CN 110686383 B CN110686383 B CN 110686383B
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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
- F24F11/30—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
- F24F11/89—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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
Abstract
The present invention relates to the field of control for monitoring filter performance. The filter screen effectiveness judgment method comprises the following steps: sequentially obtaining the concentration of each preset pollutant after the first time of operation and the concentration after the second time of operation; if at least one pollutant exists, the pollutant still does not reach the purification standard after the second time of operation, and the concentration of the pollutant after the second time of operation is not reduced compared with the concentration of the pollutant after the first time of operation, the filter screen is judged to be invalid, and the purification condition of each pollutant is sent; the pollutant is not purified to reach the standard, namely the concentration of the pollutant obtained at the current time is higher than the preset standard concentration of the pollutant. The filter screen effectiveness judgment method is not only suitable for filter screen effectiveness judgment when the performance of the filter screen is reduced or the filter screen is overdue, but also suitable for filter screen effectiveness judgment when overproof pollutants which cannot be effectively purified by the filter screen newly appear in the ambient air; when the invalid condition of filter screen appears, be favorable to the user to find suitable filter screen scheme fast.
Description
Technical Field
The invention relates to the technical field of control of air purifiers, in particular to a filter screen effectiveness judging method, an air purifier and a computer readable storage medium.
Background
Present partial air purifier relies on the filter screen to purify ambient air, if the filter screen is invalid will lead to air purifier can't effectively purify the pollutant that exceeds standard in the air, and the invalid mode of filter screen has the multiple, and is common to include: (1) the selected filter screen can not effectively filter the overproof pollutants in the ambient air; (2) new overproof pollutants appear in the ambient air, and the filter screen cannot effectively filter the new overproof pollutants; (3) the filter screen naturally loses efficacy after long-term use; (4) the screen is not properly installed or not installed. Wherein (1) two kinds of condition (2) are because specific filter screen or filter screen combination are often only effective to specific type pollutant, and the filter screen is invalid when pollutant type that exceeds standard and filter screen can purify mismatches, especially probably because seasonal pollutant such as haze, pollen leads to the filter screen invalid under (2) the condition, and (3) the condition is because the filter screen has adhered to excessive pollutant particle at the in-process of filtering the pollutant.
The chinese patent application publication No. CN110195911A proposes a method for judging expiration of a filter screen of an air purifier, the method judges whether the filter screen of the air purifier needs to be replaced or not by analyzing the data information related to the air quality before purification and the data information related to the air quality after purification, this method can effectively deal with the (3) th case of invalid filter screen, however, when judging whether the filter screen needs to be replaced, it defaults that the pollutants purified by the filter screen are matched with the pollutants in the ambient air, when the new overproof pollutant in the (2) th situation in the environment causes the filter screen to be ineffective, if the user is still mechanically reminded to replace the filter screen after the filter screen is detected to be invalid, the filter screen still can be detected to be required to be replaced after the filter screen is replaced, and the method cannot be applied to the situation that the type of the overproof pollutants in the ambient air changes.
And, under the effectual condition of air purifier, ambient air can be purified to the pollutant concentration and maintain the stable level below the predetermined standard concentration, and the pollutant concentration difference of air purifier air intake and air outlet is little here, needs the sensor of higher accuracy just can detect the difference before and after purifying, therefore has higher to the required precision of sensor, and economic nature is not good enough.
In addition, another solution of the embodiment of the chinese patent application publication No. CN110195911A only detects the air quality at the air outlet of the air purifier, and compares the air quality information at the air outlet with an empirical value to determine whether the filter screen needs to be replaced, however, the use environment of the air purifier is not a closed environment generally, and external pollutants continuously diffuse into the indoor environment while the air purifier purifies the indoor ambient air, so that even if the air quality information at the air outlet reaches the purification standard, it cannot be guaranteed that the air purifier can effectively purify the indoor ambient air.
Disclosure of Invention
One of the objectives of the present invention is to provide a method for determining the effectiveness of a filter, which is beneficial to accurately and rapidly determining the invalidity of a filter and to replacing a proper filter.
In order to achieve the above object, the method for judging the effectiveness of a filter screen according to the present invention comprises: sequentially obtaining the concentration of each preset pollutant after the first time of operation and the concentration after the second time of operation; if at least one pollutant exists, the pollutant still does not reach the purification standard after the second time of operation, and the concentration of the pollutant after the second time of operation is not reduced compared with the concentration of the pollutant after the first time of operation, the filter screen is judged to be invalid, and the purification condition of each preset pollutant is sent; the pollutant is not purified to reach the standard, namely the concentration of the pollutant obtained at the time is higher than the preset standard concentration of the pollutant; at least one of the predetermined contaminants is a contaminant other than the type of contaminant that the screen is capable of purifying.
As can be seen from the above, on the one hand, the object detected by the filter screen effectiveness judgment method of the present invention is air in an indoor environment, and the filter screen purification effect can be embodied more accurately; on the other hand, the filter screen effectiveness judging method of the invention respectively monitors each preset pollutant type, the filter screen is judged to be invalid as long as the filter screen can not effectively purify one pollutant, which is beneficial to better ensuring good quality of indoor environment air, and the preset pollutant is not limited to the pollutant type which can be purified by the current filter screen, the preset pollutant can comprise a plurality of common pollutant types, when new overproof pollutants which can not be effectively purified by the filter screen appear in the air, the filter screen failure can be accurately judged by the method, in addition, the invention sends out the purification condition of each pollutant when the filter screen is detected to be invalid, and specifically can be sent to a display panel of a corresponding air purifier or sent to an intelligent terminal of a user through a wireless module, thus facilitating the user to select a proper filter screen through the purification condition of each pollutant, the filter screen effectiveness judgment method is not only suitable for filter screen effectiveness judgment when the performance of the filter screen is reduced or the filter screen is overdue, but also suitable for filter screen effectiveness judgment when overproof pollutants which cannot be effectively purified by the filter screen newly appear in the ambient air; when the filter screen is invalid, the filter screen replacing method and the filter screen replacing device can not only remind a user of replacing the filter screen, but also be beneficial to the user to quickly find a proper filter screen scheme.
Preferably, the method is performed in an efficient mode between the first time and the second time.
From top to bottom, whether the filter screen is effective is judged again after one section to high efficiency mode operation, can make the invalid judgement of filter screen more accurate like this.
In another preferred embodiment, before obtaining the concentration of each preset pollutant after the first time of operation and the concentration after the second time of operation, the pollution determining step is performed: acquiring the concentration of each preset pollutant in the air, and determining the pollutant with the concentration higher than the preset standard concentration as an overproof pollutant; executing a first judgment step after running for a third time: acquiring the concentration of each overproof pollutant, judging whether the concentration of each overproof pollutant acquired at this time is reduced compared with the concentration acquired at the last time, and if so, judging whether each overproof pollutant is purified and reaches the standard; if all the overproof pollutants are purified and reach the standard, the filter screen is judged to be effective; if the concentration of each overproof pollutant obtained at this time is reduced compared with the concentration obtained at the last time, and at least one overproof pollutant is not purified and reaches the standard, determining the pollutant which is not purified and reaches the standard as a new overproof pollutant, and continuing to operate for the fourth time and then executing the first judgment step again; if the concentration of at least one overproof pollutant obtained at this time is not reduced compared with the concentration obtained at the last time, the filter screen is judged to be invalid, and the time for obtaining the concentration of the overproof pollutant twice is the first time and the second time respectively.
The method comprises the following steps of obtaining the concentration of at least one pollutant which exceeds the standard, and judging whether the pollutant which exceeds the standard is purified and reaches the standard after the pollutant which exceeds the standard is operated for the ninth time in a high-efficiency mode when the concentration obtained at this time is not reduced compared with the concentration obtained at the last time in the first judging step, if so, judging that the filter screen is effective, and if not, judging that the filter screen is ineffective.
Therefore, according to the technical scheme, the filter screen must be operated for a period of time in a high-efficiency mode before being judged to be invalid, and the accuracy of invalid judgment of the filter screen is favorably improved.
According to a further scheme, when the result of the first judgment step is that the concentration of at least one overproof pollutant obtained at this time is not reduced compared with the concentration obtained at the last time, whether the current operation mode is the high-efficiency mode or not is judged, if so, the filter screen is judged to be invalid, otherwise, whether all the overproof pollutants are purified and reach the standard or not is judged after the ninth time of the high-efficiency mode, if so, the filter screen is judged to be valid, and if not, the filter screen is judged to be invalid.
In another preferred embodiment, before obtaining the concentration of each preset pollutant after the first time of operation and the concentration after the second time of operation, the pollution determining step is performed: acquiring the concentration of each preset pollutant in the air, and determining the pollutant with the concentration higher than the preset standard concentration as an overproof pollutant; executing a second judgment step after the operation for the fifth time: acquiring the concentration of each overproof pollutant, judging whether the concentration of each overproof pollutant acquired at this time is reduced compared with the concentration acquired at the last time, and if so, judging whether each overproof pollutant is purified and reaches the standard; if all the overproof pollutants are purified and reach the standard, the filter screen is judged to be effective; if the concentration of each overproof pollutant obtained at this time is reduced compared with the concentration obtained at the last time, and at least one overproof pollutant is not purified and reaches the standard, determining the pollutant which is not purified and reaches the standard as a new overproof pollutant, and continuing to operate for the sixth time and then executing the second judgment step again; if at least one overproof pollutant exists, determining the pollutant which is not purified and reaches the standard as a new overproof pollutant if the concentration of the overproof pollutant obtained at this time is not reduced compared with the concentration obtained at the last time, and executing a third judgment step after the pollutant continues to operate for a seventh time in a high-efficiency mode; and (3) third judgment: acquiring the concentration of each overproof pollutant, judging whether the concentration of each overproof pollutant acquired at this time is reduced compared with the concentration acquired at the last time, and if so, judging whether each overproof pollutant is purified and reaches the standard; if all the overproof pollutants are purified and reach the standard, the filter screen is judged to be effective; if the concentration of each overproof pollutant obtained at this time is reduced compared with the concentration obtained at the last time, and at least one overproof pollutant is not purified to reach the standard, determining the pollutant which is not purified to reach the standard as a new overproof pollutant, and continuing to operate for the eighth time and then executing the third judgment step again; if the concentration of at least one overproof pollutant obtained at this time is not reduced compared with the concentration obtained at the last time, the filter screen is judged to be invalid, and the time for obtaining the concentration of the overproof pollutant twice is the first time and the second time respectively.
Therefore, according to the technical scheme, the filter screen must be operated for a period of time in a high-efficiency mode before being judged to be invalid, and the accuracy of invalid judgment of the filter screen is favorably improved.
If the result of the second judgment step shows that the concentration of at least one overproof pollutant obtained at this time is not reduced compared with the concentration obtained at the last time, judging whether the current purification mode is a high-efficiency mode, if so, judging that the filter screen is invalid, and respectively setting the time for obtaining the concentration of the overproof pollutant for the last two times as a first time and a second time, otherwise, determining the pollutant which does not reach the standard after purification as a new overproof pollutant, and executing a third judgment step after continuously operating in the high-efficiency mode for a seventh time.
The further scheme is that when the filter screen is judged to be effective, the filter screen operates in a normal mode.
It is thus clear that air purifier all operates under the mode is imitated always under the general condition like this, only invade indoor environment or filter screen itself when the pollutant of external environment fast and just can start high-efficient mode under the invalid circumstances, avoid the long-time big noise operation of air purifier, be favorable to prolonging air purifier's life.
The further scheme is that when the filter screen is judged to be effective, the purification condition of each pollutant is sent.
From top to bottom, the user of being convenient for like this masters air purifier's purification developments.
The further scheme is that when the filter screen is judged to be effective, the step of determining pollution is executed again.
It is thus clear that, when having new pollutant that exceeds standard to invade the indoor environment at air purifier place at normal purification in-process like this, can realize real-time perception to whether the detection filter screen is effective to this pollutant that exceeds standard of new invasion, so that can in time remind the user to change suitable filter screen when the filter screen is invalid to the pollutant that exceeds standard of new invasion indoor environment, be favorable to guaranteeing that ambient air is of high quality.
In the step of determining the pollution, if all the pollutants reach the standard, the step of determining the pollution is executed again after waiting for the tenth time.
Therefore, the judgment load is favorably reduced, and the requirements of the filter screen effectiveness judgment method on hardware such as a memory, a processor and the like are reduced.
Still another preferable scheme is that when the filter screen is judged to be invalid, a recommended filter screen scheme is matched according to the purification condition of each pollutant and the purification characteristics of each filter screen, and the recommended filter screen scheme is sent.
From the above, it is further advantageous to assist the user in selecting an appropriate screen scheme.
The invention also aims to provide the air purifier which is beneficial to accurately and quickly judging the invalidity of the filter screen and replacing a proper filter screen.
In order to achieve the above object, the air purifier of the present invention includes a filter, a processor, and a memory, wherein the memory stores a computer program, and the computer program implements the steps of the filter effectiveness determining method when executed by the processor.
It is a further object of the present invention to provide a computer readable storage medium that facilitates accurate and quick determination of filter screen ineffectiveness and facilitates replacement of an appropriate filter screen.
In order to achieve the above object, the air purifier of the present invention stores a computer program, and the computer program implements the steps of the filter screen effectiveness determination method when executed.
Drawings
FIG. 1 is a flow chart of a first embodiment of a method for determining filter screen effectiveness according to the present invention;
FIG. 2 is a flowchart illustrating a second method for determining the effectiveness of a filter according to an embodiment of the present invention;
FIG. 3 is a flow chart of a first preferred embodiment of a method for determining the effectiveness of a filter screen according to the present invention;
FIG. 4 is a flow chart of a second preferred embodiment of the method for determining the effectiveness of a filter screen according to the present invention;
FIG. 5 is a flowchart illustrating a third method for determining the effectiveness of a filter according to the present invention;
FIG. 6 is a flow chart of a first preferred embodiment of a method for determining the effectiveness of a filter screen according to the present invention;
fig. 7 is a flowchart of a second preferred embodiment of the method for determining the effectiveness of a filter screen according to the present invention.
Detailed Description
The first embodiment of the filter screen effectiveness judging method, the air purifier and the computer readable storage medium comprises the following steps:
the air purifier is provided with a filter screen, the air purifier is provided with a memory and a processor, the memory is stored with a computer program, a plurality of pollutant types and preset standard concentrations corresponding to the preset pollutant types are preset in the computer program, the air purifier reminds a user to replace the filter screen matched with the pollutant exceeding the standard in the ambient air through each step of the filter screen effectiveness judging method, and please refer to fig. 1, the filter screen effectiveness judging method of the embodiment comprises the following steps:
firstly, executing the step S101 to obtain the concentration of each preset pollutant; for example, the air purifier is provided with sensors for detecting each preset pollutant, the sensors include but are not limited to PM2.5 sensors, formaldehyde sensors, VOC sensors, etc., and the concentration of each preset pollutant is detected by the corresponding sensors;
then, executing the step S102, and judging whether the concentration of each preset pollutant is lower than the corresponding preset standard concentration;
if yes, executing the step S103, waiting for the time T10, and executing the step S101 again after waiting for the time T10; alternatively, the state of the air purifier may be an operation state or a standby sleep state for the waiting time T10;
otherwise, executing the step S104, determining the pollutant exceeding the standard and operating for T3 time; specifically, the overproof pollutants are pollutants with the concentration higher than the preset standard concentration;
executing the step S105 after the time T3 is operated, and acquiring the concentration of each overproof pollutant;
then, step S106 is executed, and whether the concentration of each overproof pollutant obtained at this time is reduced compared with the concentration obtained at the last time is judged;
if yes, executing step S107, and judging whether each overproof pollutant is purified and reaches the standard; specifically, when the concentration of the pollutant exceeding the standard obtained at this time is lower than or equal to the corresponding preset standard concentration, the pollutant exceeding the standard is determined to be purified and reach the standard; in this embodiment, after a predetermined pollutant is determined to be an out-of-standard pollutant, the pollutant is still called an out-of-standard pollutant even though the pollutant is actually purified to reach the standard before the pollutant is not determined to be purified to reach the standard;
if the result of the step S106 is yes and the result of the step S107 is no, the step S108 is executed, the pollutant exceeding the standard is determined again, and the time T4 is operated; after the T4 operation time, jumping to the step S105;
if yes, executing step S109, judging that the filter screen is effective, and sending the purification condition of each preset pollutant; specifically, the purification condition of the pollutants can be sent to a display panel of the air purifier, and also can be sent to an intelligent terminal such as a PC (personal computer), a smart phone and the like of a user so as to inform the user of the purification condition of the air purifier;
after the step S109 is executed, the step S101 is returned to for cycle detection;
if the result of the step S106 is no, the step S110 is executed, the filter screen is judged to be invalid, and the purification condition of each preset pollutant is sent; specifically, the purification condition of each preset pollutant can be sent to the display panel of the air purifier, and also can be sent to intelligent terminals such as a PC (personal computer) and a smart phone of a user, so that the user can select a proper filter screen according to the purification condition of each preset pollutant.
Preferably, the step S110 further includes selecting an optimal screen scheme matching the out-of-standard pollutant in the environment according to the purification situation of each preset pollutant, and sending the optimal screen scheme; specifically, the best filter screen scheme can be sent to air purifier's display panel on, also can send to on intelligent terminal such as user's PC, smart mobile phone, the user can change the filter screen for air purifier according to the best filter screen scheme of feedback like this, is favorable to user convenient to use. Specifically, filter screen information suitable for different pollutant types and pollutant type combinations is stored in the memory, for example, an overproof pollutant type and filter screen corresponding table, optionally, the optimal filter screen scheme is a filter screen capable of simultaneously purifying an overproof pollutant type which cannot be purified by a current filter screen and a pollutant type which can be purified by the current filter screen, for example, the filter screen which can only effectively purify formaldehyde is originally installed in the air purifier, the filter screen is reminded to be invalid after the air purifier operates for a period of time, and PM2.5 is determined to be an overproof pollutant when the filter screen is judged to be invalid, so that the determined optimal filter screen scheme is a filter screen capable of purifying formaldehyde and PM2.5 at the moment; moreover, as the filter screens capable of purifying formaldehyde and PM2.5 simultaneously are multiple, multiple recommended filter screen schemes for preferentially purifying PM2.5 and assisting in purifying formaldehyde and recommended filter screen schemes for preferentially purifying formaldehyde and assisting in purifying PM2.5 can be listed for a user to select, preferably, the recommended filter screen schemes can be classified according to the standard exceeding condition of PM2.5 and the purification condition of formaldehyde, and the priority of the recommended filter screen schemes for preferentially purifying PM2.5 and assisting in purifying formaldehyde is determined to be higher than the recommended filter screen schemes for preferentially purifying formaldehyde and assisting in purifying PM2.5 when the standard exceeding condition of PM2.5 is more serious.
Specifically, the filter screen effectiveness judgment method of this embodiment judges through the pollutant concentration that detects in the ambient air, and different with the air outlet pollutant concentration that detects air purifier, the air quality of indoor environment can more be embodied to the mode of this embodiment.
In this embodiment, the first time and the second time are respectively obtained when the concentrations of the overproof pollutants are obtained in the last two times.
In this embodiment, the specific values of T3 and T4 may be specifically set according to the performance, applicable environment, and performance requirements of the air purifier.
The memory of the air purifier of the embodiment stores a computer program that can be run on the processor, and the computer program is used for realizing the filter screen effectiveness judging method.
For example, a computer program may be partitioned into one or more modules that are stored in a memory and executed by a processor to implement the modules of the present invention. One or more of the modules may be a series of computer program instruction segments capable of performing certain functions, which are used to describe the execution of the computer program in the terminal device.
The Processor may be a Central Processing Unit (CPU), or may be other general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, or the like. The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being the control center of the terminal device and connecting the various parts of the entire terminal device using various interfaces and lines.
The memory may be used to store computer programs and/or modules, and the processor may implement various functions of the terminal device by running or executing the computer programs and/or modules stored in the memory and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
A computer program for implementing the method for determining the effectiveness of a filter screen may be stored in a computer-readable storage medium. Based on such understanding, all or part of the processes of the embodiments of the method for determining the effectiveness of a filter screen according to the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of the method for determining the effectiveness of a filter screen.
Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, recording medium, U.S. disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, in accordance with legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunications signals.
The second embodiment of the filter screen effectiveness judgment method, the air purifier and the computer readable storage medium comprises the following steps:
in this embodiment, the purification mode of the air purifier has a normal mode and a high-efficiency mode. For example, the normal mode and the high-efficiency mode can be distinguished according to the blowing wind speed of the fan, and the operating wind speed of the fan in the normal mode is lower than that of the fan in the high-efficiency mode.
Referring to fig. 2, the step S201 of the present embodiment is the same as the step S101, the step S202 of the present embodiment is the same as the step S102, the step S203 of the present embodiment is the same as the step S103, the step S204 of the present embodiment is the same as the step S104, the step S205 of the present embodiment is the same as the step S105, the step S206 of the present embodiment is the same as the step S106, the step S207 of the present embodiment is the same as the step S107, the step S208 of the present embodiment is the same as the step S108, the step S209 of the present embodiment is the same as the step S109, and the step S213 of.
When the result of executing the step S206 is no, adjusting or maintaining the operation mode of the air purifier to be the high-efficiency mode, and judging whether the filter screen is invalid again after the high-efficiency mode is operated for a period of time, for example, executing the step S210, re-determining the pollutant exceeding the standard, and operating the filter screen in the high-efficiency mode for T9 time; then, step S211 is executed to obtain the concentration of each overproof pollutant; executing S212 step to judge whether each overproof pollutant is purified and reaches the standard; if so, jumping to the step of executing S209, otherwise, executing the step of S213.
Since the filter screen effectiveness judging method of the present embodiment judges by detecting the pollutant concentration of the ambient air, however, the pollutant concentration in the indoor environment changes relatively slowly with the operation of the air purifying device, if the result of the step S206 is negative when the air purifier operates in the general purifying mode, it indicates that the rate of pollutant invading the indoor environment and the purifying rate of the air purifier may be in a balanced state (of course, the rate of pollutant invading the indoor environment may be higher), if the rate of pollutant invading the indoor environment and the purifying rate of the air purifier in the general purifying mode are in a balanced state, the filter screen is likely to be still effective at this time, if the filter screen is directly judged to be ineffective at this time, an erroneous judgment may occur, and therefore, if the result of the step S206 is negative, whether the filter screen is effective or not is judged after the filter screen is operated for a period of time in a high-efficiency mode, so that the invalid judgment of the filter screen is more accurate.
Preferably, referring to fig. 3, in a preferred embodiment of the present invention, after determining that the filter screen is effective, the operation mode of the air purifier is adjusted or maintained to be the normal mode, for example, after step S209 is executed, step S214 is added to operate in the normal mode, and then the step S201 is executed again. Like this air purifier all operates under the mode is imitated always under the general condition, only can start high-efficient mode under the circumstances that the pollutant of external environment invades indoor environment fast or filter screen itself has been invalid, avoids the long-time big noise operation of air purifier, is favorable to prolonging air purifier's life.
Preferably, referring to fig. 4, in another preferred embodiment of the present invention, when the result of executing step S206 is no, step S215 is executed, and in step S215, it is determined whether the air purifier is operating in the high-efficiency mode, if so, the process directly jumps to step S213, otherwise, the process executes step S210.
The filter screen effectiveness judging method, the air purifier and the computer readable storage medium in the second embodiment are the same as the filter screen effectiveness judging method, and the air purifier and the computer readable storage medium in the first embodiment.
Third embodiment of filter screen effectiveness judging method, air purifier and computer readable storage medium:
referring to fig. 5, the step S301 of the present embodiment is the same as the step S201, the step S302 of the present embodiment is the same as the step S202, the step S303 of the present embodiment is the same as the step S203, the step S204 of the present embodiment is the same as the step S104, the step S305 of the present embodiment is the same as the step S205, the step S306 of the present embodiment is the same as the step S206, the step S307 of the present embodiment is the same as the step S207, the step S308 of the present embodiment is the same as the step S208, the step S309 of the present embodiment is the same as the step S209, the step S310 of the present embodiment is the same as the step S210, the step S311 of the present embodiment is the same. Here, T11 in the step S303 corresponds to T10 in the step S203, T5 in the step S304 corresponds to T3 in the step S204, and T6 in the step S308 corresponds to T4 in the step S208.
In the second embodiment, whether the filter screen is effective is judged by directly judging whether the overproof pollutants are purified and reach the standard in the efficient operation mode, the judging mode has high efficiency, the judging result can be obtained more quickly, but the situation that the concentration of the overproof pollutants is reduced but the overproof pollutants are not purified and reach the standard possibly occurs, the filter screen is easily and directly judged to be invalid according to the second embodiment, and the filter screen effectiveness is misjudged, so that the second embodiment executes the step S312 after executing the step S311, judges whether the concentration of the overproof pollutants obtained at this time is reduced compared with the concentration obtained at the last time, executes the step S313 if the concentration of the overproof pollutants obtained at this time is reduced, judges whether the overproof pollutants are purified and reach the standard, and jumps to the step S309 if the judging results of the step S312 and the step S313; if the judgment result of the step S312 is yes and the judgment result of the step S313 is no, executing the step S314, re-determining the out-of-standard pollutant and running for T8 time, and then executing the step S311 again; if the determination result in the step S312 is negative, the process jumps to the step S315. Therefore, the accuracy of filter screen effectiveness judgment during the operation of the air purifier in a high-efficiency mode is improved.
Preferably, referring to fig. 6, in a preferred embodiment of the present invention, when the result of executing step S306 is no, step S316 is executed, and in step S316, it is determined whether the air purifier is operating in the high-efficiency mode, if so, the process directly jumps to step S315, otherwise, step S310 is executed.
Preferably, referring to fig. 7, in another preferred embodiment of the present invention, after determining that the filter screen is effective, the operation mode of the air purifier is adjusted or maintained to be the normal mode, for example, after step S309 is executed, step S317 is added to operate in the normal mode, and then step S301 is executed. Like this air purifier all operates under the mode is imitated always under the general condition, only can start high-efficient mode under the circumstances that the pollutant of external environment invades indoor environment fast or filter screen itself has been invalid, avoids the long-time big noise operation of air purifier, is favorable to prolonging air purifier's life.
The third embodiment of the filter screen effectiveness judging method, the air purifier and the computer readable storage medium comprises the other parts and the filter screen effectiveness judging method, and the first embodiment of the air purifier and the computer readable storage medium comprises the following steps.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, rather than limitations, and that many variations and modifications of the invention are possible to those skilled in the art, without departing from the spirit and scope of the invention.
Claims (14)
1. The filter screen effectiveness judging method is characterized by comprising the following steps:
sequentially obtaining the concentration of each preset pollutant after the first time of operation and the concentration after the second time of operation;
if at least one pollutant exists, the pollutant still does not reach the purification standard after the second time of operation, and the concentration of the pollutant after the second time of operation is not reduced compared with the concentration of the pollutant after the first time of operation, the filter screen is judged to be invalid, and the purification condition of each preset pollutant is sent;
the pollutant is not purified to reach the standard, namely the concentration of the pollutant obtained at the time is higher than the preset standard concentration of the pollutant;
at least one of the predetermined contaminants is a contaminant other than the type of contaminant that the screen is capable of purifying.
2. The filter screen effectiveness judging method according to claim 1, characterized in that:
operating as an efficient mode between the first time to the second time.
3. The filter screen effectiveness judging method according to claim 1, characterized in that:
before obtaining the concentration of each preset pollutant after the first time of operation and the concentration after the second time of operation, executing a pollution determining step: acquiring the concentration of each preset pollutant in the air, and determining the pollutant with the concentration higher than a preset standard concentration as an overproof pollutant;
executing a first judgment step after running for a third time;
a first judgment step: acquiring the concentration of each overproof pollutant, judging whether the concentration of each overproof pollutant acquired at this time is reduced compared with the concentration acquired at the last time, and if so, judging whether each overproof pollutant is purified and reaches the standard;
if all the overproof pollutants are purified and reach the standard, the filter screen is judged to be effective;
if the concentration of each overproof pollutant obtained at this time is reduced compared with the concentration obtained at the last time, and at least one overproof pollutant is not purified and reaches the standard, determining the pollutant which is not purified and reaches the standard as a new overproof pollutant, and continuing to operate for the fourth time and then executing the first judgment step again;
if the concentration of at least one overproof pollutant obtained at this time is not reduced compared with the concentration obtained at the last time, the filter screen is judged to be invalid, and the time for obtaining the concentration of the overproof pollutant twice at the last time is the first time and the second time respectively.
4. The filter screen effectiveness judging method according to claim 3, characterized in that:
and when the result of the first judgment step is that the concentration of at least one overproof pollutant obtained at this time is not reduced compared with the concentration obtained at the last time, operating in a high-efficiency mode for the ninth time and then judging whether each overproof pollutant is purified and reaches the standard, if so, judging that the filter screen is effective, and otherwise, judging that the filter screen is ineffective.
5. The filter screen effectiveness judging method according to claim 4, characterized in that:
and when the result of the first judgment step is that the concentration of at least one overproof pollutant obtained at this time is not reduced compared with the concentration obtained at the last time, judging whether the current operation mode is the high-efficiency mode, if so, judging that the filter screen is invalid, otherwise, operating the high-efficiency mode for the ninth time, and then judging whether each overproof pollutant is purified and reaches the standard, if so, judging that the filter screen is valid, otherwise, judging that the filter screen is invalid.
6. The filter screen effectiveness judging method according to claim 1, characterized in that:
before obtaining the concentration of each preset pollutant after the first time of operation and the concentration after the second time of operation, executing a pollution determining step: acquiring the concentration of each preset pollutant in the air, and determining the pollutant with the concentration higher than a preset standard concentration as an overproof pollutant;
executing a second judgment step after running for a fifth time;
a second judgment step: acquiring the concentration of each overproof pollutant, judging whether the concentration of each overproof pollutant acquired at this time is reduced compared with the concentration acquired at the last time, and if so, judging whether each overproof pollutant is purified and reaches the standard;
if all the overproof pollutants are purified and reach the standard, the filter screen is judged to be effective;
if the concentration of each overproof pollutant obtained at this time is reduced compared with the concentration obtained at the last time, and at least one overproof pollutant is not purified and reaches the standard, determining the pollutant which is not purified and reaches the standard as a new overproof pollutant, and continuing to operate for the sixth time and then executing the second judgment step again;
if at least one overproof pollutant exists, determining the pollutant which is not purified and reaches the standard as a new overproof pollutant if the concentration of the overproof pollutant obtained at this time is not reduced compared with the concentration obtained at the last time, and executing a third judgment step after the pollutant continues to operate for a seventh time in a high-efficiency mode;
and (3) third judgment: acquiring the concentration of each overproof pollutant, judging whether the concentration of each overproof pollutant acquired at this time is reduced compared with the concentration acquired at the last time, and if so, judging whether each overproof pollutant is purified and reaches the standard;
if all the overproof pollutants are purified and reach the standard, the filter screen is judged to be effective;
if the concentration of each overproof pollutant obtained at this time is reduced compared with the concentration obtained at the last time, and at least one overproof pollutant is not purified and reaches the standard, determining the pollutant which is not purified and reaches the standard as a new overproof pollutant, and continuing to operate for the eighth time and then executing the third judgment step again;
if the concentration of at least one overproof pollutant obtained at this time is not reduced compared with the concentration obtained at the last time, the filter screen is judged to be invalid, and the time for obtaining the concentration of the overproof pollutant twice at the last time is the first time and the second time respectively.
7. The filter screen effectiveness judging method according to claim 6, characterized in that:
if the result of the second judging step is that the concentration of at least one overproof pollutant obtained at this time is not reduced compared with the concentration obtained at the last time, judging whether the current purification mode is a high-efficiency mode, if so, judging that the filter screen is invalid, and respectively setting the time for obtaining the concentration of the overproof pollutant for the last two times as the first time and the second time, otherwise, determining the pollutant which is not purified and reaches the standard as a new overproof pollutant, and executing the third judging step after continuously operating for a seventh time in the high-efficiency mode.
8. The filter screen effectiveness judging method according to any one of claims 4 to 7, characterized in that:
when the filter screen is judged to be effective, the filter screen is operated in a normal mode.
9. The filter screen effectiveness judging method according to any one of claims 3 to 7, characterized in that:
and when the filter screen is judged to be effective, sending the purification condition of each preset pollutant.
10. The filter screen effectiveness judging method according to any one of claims 3 to 7, characterized in that:
and when the filter screen is judged to be effective, the pollution determining step is executed again.
11. The filter screen effectiveness judging method according to any one of claims 3 to 7, characterized in that:
in the pollution determining step, if all the preset pollutants reach the standard, the pollution determining step is executed again after the tenth time.
12. The filter screen effectiveness judging method according to any one of claims 1 to 7, characterized in that:
and when the filter screen is judged to be invalid, matching a recommended filter screen scheme according to the purification condition of each preset pollutant and the purification characteristics of various filter screens, and sending the recommended filter screen scheme.
13. Air purifier, its characterized in that:
the air purifier is provided with a filter screen, a processor and a memory, wherein the memory is stored with a computer program, and the computer program realizes the steps of the filter screen effectiveness judgment method according to any one of claims 1 to 12 when being executed by the processor.
14. A computer-readable storage medium having stored thereon a computer program, characterized in that:
the computer program, when executed, implements the steps of the method of determining the effectiveness of a filter screen according to any one of claims 1 to 12.
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| CN112032925A (en) * | 2020-08-24 | 2020-12-04 | 广东Tcl智能暖通设备有限公司 | Control method of air conditioner, air conditioner and storage medium |
| CN112051305A (en) * | 2020-08-28 | 2020-12-08 | 海信（山东）空调有限公司 | Filter screen replacement detection method and device, electrical equipment and storage medium |
| CN112033875A (en) * | 2020-08-28 | 2020-12-04 | 海信（山东）空调有限公司 | Filter screen replacement detection method and device, electrical equipment and storage medium |
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