CN116294176A - Filter screen service life detection method, device, medium and air purification equipment - Google Patents
Filter screen service life detection method, device, medium and air purification equipment Download PDFInfo
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- CN116294176A CN116294176A CN202310037386.2A CN202310037386A CN116294176A CN 116294176 A CN116294176 A CN 116294176A CN 202310037386 A CN202310037386 A CN 202310037386A CN 116294176 A CN116294176 A CN 116294176A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
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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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Abstract
The invention provides a filter screen service life detection method, a device, a medium and air purification equipment, wherein the method comprises the following steps: acquiring first dust concentration, first formaldehyde concentration, first temperature and first humidity of an air inlet, and second dust concentration, second formaldehyde concentration, second temperature and second humidity of an air outlet; calculating dust purification efficiency of the filter screen by using the first dust concentration and the second dust concentration, and calculating formaldehyde purification efficiency of the filter screen by using the first formaldehyde concentration and the second formaldehyde concentration; and determining a service life detection result of the filter screen based on the dust purification efficiency, the formaldehyde purification efficiency, the temperature variation of the first temperature and the second temperature and the humidity variation of the first humidity and the second humidity. Through the dust concentration to air intake and air outlet, formaldehyde concentration and humiture's detection, accurately reflect the filter screen state, do not receive the interference of use scene and air quality, ensure the accuracy that detects, can accurate effectual warning user carries out the filter screen and changes, promotes user's use experience.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to a method and a device for detecting service life of a filter screen, a medium and air purification equipment.
Background
With the increasing progress of society, environmental and air quality problems are also receiving attention of people, the frequency of use of air purifier is also becoming wider, and the filter screen is as the core spare part of filtration formula air purifier, how can effectively detect filter screen life-span becomes the core proposition that the purifier effectively improves user experience and feel.
The life-span of the filter screen that is commonly used in the market at present is reminded and all detects according to the live time of filter screen, but because the actual use scene of clarifier is inconsistent, the air quality of actual use environment is also different simultaneously, and single timing detection mode can lead to filter screen state testing result inaccurate, is difficult to accurate warning user to carry out the filter screen and changes.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a method, an apparatus, a medium, and an air cleaning device for detecting a lifetime of a filter screen, so as to solve the problem that in the prior art, it is difficult to accurately remind a user to replace the filter screen by detecting a state of the filter screen by counting a service time of the filter screen.
According to a first aspect, an embodiment of the present invention provides a method for detecting a lifetime of a filter screen, which is applied to an air purification device, where the filter screen is disposed between an air inlet and an air outlet of the air purification device, and a filtrate of the filter screen is dust and formaldehyde, and the method is characterized in that the method includes:
acquiring a first dust concentration, a first formaldehyde concentration, a first temperature and a first humidity of the air inlet, and acquiring a second dust concentration, a second formaldehyde concentration, a second temperature and a second humidity of the air outlet;
calculating dust purification efficiency of the filter screen by using the first dust concentration and the second dust concentration, and calculating formaldehyde purification efficiency of the filter screen by using the first formaldehyde concentration and the second formaldehyde concentration;
and determining a service life detection result of the filter screen based on the dust purification efficiency, the formaldehyde purification efficiency, the temperature variation of the first temperature and the second temperature and the humidity variation of the first humidity and the second humidity.
Optionally, the determining the life detection result of the filter screen based on the dust purification efficiency, the formaldehyde purification efficiency, the temperature variation of the first temperature and the second temperature, and the humidity variation of the first humidity and the second humidity includes:
judging whether the current formaldehyde purification efficiency is smaller than a second preset purification efficiency or not;
when the current formaldehyde purification efficiency is smaller than a second preset purification efficiency, judging whether the temperature variation and/or the humidity variation is smaller than a corresponding temperature variation threshold and/or humidity variation threshold;
and when the temperature variation and the humidity variation are smaller than the corresponding temperature variation threshold and humidity variation threshold, determining that the service life detection result of the filter screen is that the filter screen needs to be replaced.
Optionally, before determining that the life detection result of the filter screen is that the filter screen needs to be replaced, the method further comprises:
counting a first time period when the temperature variation and the humidity variation are smaller than a corresponding temperature variation threshold and a corresponding humidity variation threshold;
and when the first time length reaches a first preset time length, determining that the service life detection result of the filter screen is that the filter screen needs to be replaced.
Optionally, the determining the life detection result of the filter screen based on the dust purification efficiency, the formaldehyde purification efficiency, the temperature variation of the first temperature and the second temperature, and the humidity variation of the first humidity and the second humidity further includes:
judging whether the current dust purification efficiency is smaller than the first preset purification efficiency or not, and counting a second duration when the current dust purification efficiency is smaller than the first preset purification efficiency;
and when the second time length reaches a second preset time length, determining that the service life detection result of the filter screen is that the filter screen needs to be replaced.
Optionally, before determining that the life detection result of the filter screen is that the filter screen needs to be replaced, the method further comprises:
judging whether the current accumulated use time length of the filter screen is longer than a third preset time length, wherein the third preset time length is the minimum work time length for maintaining the normal work state of the filter screen;
and when the current accumulated use time of the filter screen is longer than a third preset time, determining that the service life detection result of the filter screen is that the filter screen needs to be replaced.
Optionally, when the service life detection result of the filter screen is that the filter screen needs to be replaced, a filter screen replacement prompt is performed.
Optionally, when the temperature variation is not smaller than the corresponding temperature variation threshold, and/or the humidity variation is not smaller than the corresponding humidity variation threshold, performing fault early warning.
According to a second aspect, an embodiment of the present invention provides a filter screen life detection device, which is applied to an air purification device, where a filter screen is disposed between an air inlet and an air outlet of the air purification device, and a filter material of the filter screen is dust and formaldehyde, and the device includes:
the acquisition module is used for acquiring the first dust concentration, the first formaldehyde concentration, the first temperature and the first humidity of the air inlet, and the second dust concentration, the second formaldehyde concentration, the second temperature and the second humidity of the air outlet;
the calculation module is used for calculating dust purification efficiency of the filter screen by using the first dust concentration and the second dust concentration, and calculating formaldehyde purification efficiency of the filter screen by using the first formaldehyde concentration and the second formaldehyde concentration;
the detection module is used for determining a service life detection result of the filter screen based on the dust purification efficiency, the formaldehyde purification efficiency, the temperature variation of the first temperature and the second temperature and the humidity variation of the first humidity and the second humidity.
According to a third aspect, an embodiment of the present invention further provides an air cleaning apparatus, a filter screen disposed between an air inlet and an air outlet of the air cleaning apparatus, wherein a filtrate of the filter screen is dust and formaldehyde, and the apparatus further includes: a controller, the controller comprising: the filter screen life detection device comprises a memory and a processor, wherein the memory and the processor are in communication connection, the memory stores computer instructions, and the processor executes the computer instructions, so that the filter screen life detection method in the first aspect or any optional implementation manner of the first aspect is executed.
According to a fourth aspect, an embodiment of the present invention provides a computer readable storage medium storing computer instructions for causing the computer to perform the method for detecting a lifetime of a sieve according to the first aspect, or any optional implementation thereof.
The technical scheme of the invention has the following advantages:
1. according to the filter screen life detection method provided by the embodiment of the invention, the first dust concentration, the first formaldehyde concentration, the first temperature and the first humidity of the air inlet, and the second dust concentration, the second formaldehyde concentration, the second temperature and the second humidity of the air outlet are obtained; calculating dust purification efficiency of the filter screen by using the first dust concentration and the second dust concentration, and calculating formaldehyde purification efficiency of the filter screen by using the first formaldehyde concentration and the second formaldehyde concentration; and determining a service life detection result of the filter screen based on the dust purification efficiency, the formaldehyde purification efficiency, the temperature variation of the first temperature and the second temperature and the humidity variation of the first humidity and the second humidity. Therefore, the real-time state of the filter screen is accurately reflected through the detection of the dust concentration, the formaldehyde concentration and the temperature and humidity of the air inlet and the air outlet of the air purifying equipment, the interference of the use scene and the air quality is avoided, the accuracy of the detection result is ensured, and further, a user can be accurately and effectively reminded of replacing the filter screen, and the use experience of the user is improved.
2. The air purifying device provided by the embodiment of the invention comprises: the filter screen, the filter screen sets up between air purification equipment's air intake and air outlet, and the filter screen's filtration thing is dust and formaldehyde, and equipment still includes: the controller is used for executing the filter screen life detection method provided by the other embodiment of the invention, so that the real-time state of the filter screen is accurately reflected through the detection of the dust concentration, the formaldehyde concentration and the temperature and humidity of the air inlet and the air outlet of the air purification equipment, the interference of the use scene and the air quality is avoided, the accuracy of the detection result is ensured, the user can be accurately and effectively reminded of filter screen replacement, and the use experience of the user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an air purifying apparatus according to an embodiment of the present invention;
FIG. 2 is a flowchart of a method for detecting a lifetime of a filter according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a filter life detection process according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a device for detecting lifetime of a filter according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a controller in an air purifying apparatus according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
The technical features of the different embodiments of the invention described below may be combined with one another as long as they do not conflict with one another.
With the increasing progress of society, environmental and air quality problems are also receiving attention of people, the frequency of use of air purifier is also becoming wider, and the filter screen is as the core spare part of filtration formula air purifier, how can effectively detect filter screen life-span becomes the core proposition that the purifier effectively improves user experience and feel.
The life-span of the filter screen that is commonly used in the market at present is reminded and all detects according to the live time of filter screen, but because the actual use scene of clarifier is inconsistent, the air quality of actual use environment is also different simultaneously, and single timing detection mode can lead to filter screen state testing result inaccurate, is difficult to accurate warning user to carry out the filter screen and changes.
In order to solve the above problems, an embodiment of the present invention provides a filter life detection method applied to an air cleaning apparatus as shown in fig. 1, the air cleaning apparatus including: the filter screen 1, filter screen 1 sets up between air intake 21 and air outlet 22 of air purification equipment 2, and the filter media of filter screen 1 is dust and formaldehyde, and air purification equipment 2 still includes: a controller (not shown in fig. 1). For a specific operation of the controller, see the following description of the method embodiment, which is not repeated here. Illustratively, as shown in fig. 1, air in the environment enters the air cleaning apparatus 2 through an air inlet 21 of the air cleaning apparatus 2, and then is discharged through an air outlet 22 after the air is cleaned, dedusted and formaldehyde-removed by a filter screen 1, thereby realizing the function of cleaning air.
Specifically, the air purifying device 2 may be an air purifier, or may be other products that use a filter to achieve an air purifying function, and in the embodiment of the present invention, the air purifier is described as an example, which is not limited thereto.
Fig. 2 shows a flowchart of a method for detecting life of a filter according to an embodiment of the present invention, and as shown in fig. 2, the method for detecting life of a filter specifically includes the following steps:
step S101: the method comprises the steps of obtaining first dust concentration, first formaldehyde concentration, first temperature and first humidity of an air inlet, and second dust concentration, second formaldehyde concentration, second temperature and second humidity of an air outlet.
In practical application, the dust sensor, the formaldehyde sensor and the temperature and humidity sensor can be respectively arranged at the air inlet and the air outlet of the air purifying device to collect the air dust concentration, the formaldehyde concentration, the temperature and humidity and the like of the air inlet and the air outlet in real time.
Specifically, under normal conditions, dust particles in the environment are absorbed by the filter screen after passing through the air inlet and the filter screen, so that a difference X1 is formed in the dust concentration readings of the dust sensor at the air inlet and the air outlet. Similarly, after formaldehyde gas in the environment passes through a filter screen containing formaldehyde catalyst, carbon dioxide and water (HCHO+O) are generated under the catalysis of the catalyst 2 ＝CO 2 +H 2 O), except that the formaldehyde concentration readings of the formaldehyde sensor at the air inlet and the air outlet form a difference value X2, carbon dioxide can raise the temperature at the air outlet, so that the temperature readings of the temperature and humidity sensors at the air inlet and the air outlet form a difference value X3; the humidity value in the air is increased due to the water, so that the difference value X4 is formed by the humidity readings of the temperature and humidity sensors of the air inlet and the air outlet.
Step S102: and calculating dust purification efficiency of the filter screen by using the first dust concentration and the second dust concentration, and calculating formaldehyde purification efficiency of the filter screen by using the first formaldehyde concentration and the second formaldehyde concentration.
Specifically, when the air purifier starts to work, the controller continuously records the sampling data of each corresponding sensor and calculates in real time to obtain parameters which can intuitively reflect the current purifying state of the filter screen. Wherein, the dust purification efficiency of the filter screen is Y1 (y1=x1/A1), and the formaldehyde purification efficiency of the filter screen is Y2 (y2=x2/B1). Due to the catalytic oxidation of formaldehyde, the influence of the formed water and carbon dioxide on the temperature and humidity is not as remarkable as the change of the formaldehyde and dust values. The temperature change amount Y3 (y3=x3/C1) and the humidity change amount Y4 (y4=x4/D1) can be synchronized as reference values. Wherein, A1, B1, C3 and D1 are respectively the dust concentration, formaldehyde concentration, temperature and humidity that the dust sensor, formaldehyde sensor, temperature and humidity sensor gathered in air outlet department.
Step S103: and determining a service life detection result of the filter screen based on the dust purification efficiency, the formaldehyde purification efficiency, the temperature variation of the first temperature and the second temperature and the humidity variation of the first humidity and the second humidity.
Specifically, in one embodiment, the step S103 specifically includes the following steps:
step S31: judging whether the current formaldehyde purification efficiency is smaller than the second preset purification efficiency.
Wherein, the first purification efficiency of predetermineeing and the purification efficiency of second are the dust purification efficiency and formaldehyde purification efficiency that show that the filter screen air purification ability of experimental determination reaches the corresponding air purification function demand of air purifier product, and in practical application, the purification efficiency is predetermine to first purification efficiency and second and purification efficiency is predetermine can set up the same purification efficiency value generally, represents with Z, like: z=95%, etc. When the current dust purification efficiency is not less than the first preset purification efficiency and the current formaldehyde purification efficiency is not less than the second preset purification efficiency, namely when both Y1 and Y2 are not less than Z, the purification efficiency of the filter screen reaches the standard, the filter screen is in a good state, accordingly, the service life detection result of the filter screen is normal operation, and the filter screen does not report faults.
Step S32: when the current formaldehyde purification efficiency is smaller than the second preset purification efficiency, judging whether the temperature change amount and/or the humidity change amount is smaller than the corresponding temperature change threshold and/or humidity change threshold.
Specifically, when the temperature variation and the humidity variation are smaller than the corresponding temperature variation threshold and humidity variation threshold, the service life detection result of the filter screen is determined to be that the filter screen needs to be replaced. And carrying out fault early warning when the temperature variation is not smaller than the corresponding temperature variation threshold value and/or the humidity variation is not smaller than the corresponding humidity variation threshold value.
The temperature change threshold value and the humidity change threshold value are temperature and humidity change values of the air purifier, which are normal environments, once the temperature and humidity change values exceed the corresponding threshold values, the temperature and humidity change values indicate that the filter screen purifies formaldehyde to generate water and carbon dioxide to cause the temperature and humidity change of a local area at the air outlet, the current formaldehyde purification capacity of the filter screen can be reflected in an auxiliary mode through the temperature and humidity change values, the accuracy of a final detection result is further ensured, and when the temperature and humidity change values and the formaldehyde purification efficiency reflect that the state of the filter screen is inconsistent, fault early warning is carried out, the problem that the service life detection result of the filter screen is wrong due to the fault of a formaldehyde sensor or the fault of the temperature and humidity sensor can be avoided, and the service life detection accuracy of the filter screen is further improved.
Specifically, in one embodiment, before determining that the life detection result of the filter screen is that the filter screen needs to be replaced, the method further includes the following steps:
step S33: and the statistical temperature variation and the humidity variation are smaller than the first time duration of the corresponding temperature variation threshold and humidity variation threshold.
Step S34: when the first time length reaches a first preset time length, determining that the service life detection result of the filter screen is that the filter screen needs to be replaced.
Specifically, whether the mode that whether the current formaldehyde removal state reaches first preset duration T1 is maintained through judging the filter screen, the problem that temperature and humidity data acquired by a temperature and humidity sensor are inaccurate due to external interference is solved, and then the filter screen is ensured to be in a state that formaldehyde removal capacity is insufficient, and further the service life of the filter screen is ensured to reach the maximum value, normal use experience of a user is not influenced, and the cost of frequently replacing the filter screen is reduced. Exemplary, the specific value of T1 may be flexibly set according to the sampling frequency of the temperature and humidity sensor and the detection precision of the service life of the filter screen, for example: 5h, etc., the invention is not limited thereto.
Specifically, in an embodiment, the step S103 specifically further includes the following steps:
step S41: judging whether the current dust purification efficiency is smaller than a first preset purification efficiency or not;
step S42: when the current dust purification efficiency is smaller than the first preset purification efficiency, counting the second duration that the current dust purification efficiency is smaller than the first preset purification efficiency continuously.
Step S43: and when the second time length reaches a second preset time length, determining that the service life detection result of the filter screen is that the filter screen needs to be replaced.
Specifically, whether the current dust removal state of the filter screen reaches the second preset duration is judged, the problem that dust concentration collected by the dust sensor is inaccurate due to external interference is solved, the filter screen is ensured to be in a state that the dust removal capability is insufficient, the service life of the filter screen is ensured to reach the maximum value, normal use experience of a user is not influenced, and the cost of frequently replacing the filter screen is reduced. For example, the specific value of the second preset duration may be flexibly set according to the sampling frequency of the temperature and humidity sensor and the detection precision of the service life of the filter screen, for example: the same as T1 is 5h, but the invention is not limited thereto.
Specifically, in one embodiment, before determining that the life detection result of the filter screen is that the filter screen needs to be replaced, the method further includes the following steps:
step S51: judging whether the current accumulated use time length of the filter screen is longer than a third preset time length, wherein the third preset time length is the minimum work time length for maintaining the normal work state of the filter screen.
The third preset time period is longer than the first preset time period and the second preset time period: .
Step S52: when the current accumulated use time length of the filter screen is longer than the third preset time length, determining that the service life detection result of the filter screen is that the filter screen needs to be replaced.
The third preset duration T2 is a minimum lifetime duration of the filter screen determined through experiments to meet the air purifying capability required by the air purifying device, the specific value of T2 is related to the type of the filter screen and the air purifying requirement of the air purifying device, and may be flexibly set according to practical situations, for example, t2=100deg.H, etc., which is only used as an example and not limited by the invention. Therefore, the formaldehyde sensor and the dust sensor can be further avoided by comparing the relation between the current accumulated use time length of the filter screen and T2. The problem that the service life detection result of the filter screen is wrong due to the faults of data acquisition equipment such as a temperature and humidity sensor can further ensure the accuracy of the service life detection result of the filter screen.
Specifically, in an embodiment, the method further includes: and when the service life detection result of the filter screen is that the filter screen needs to be replaced, the filter screen replacement prompt is carried out.
For example, as shown in fig. 3, when both Y1 and Y2 are not less than Z, it is indicated that the purifying efficiency of the filter screen reaches the standard, the state of the filter screen is good, accordingly, the service life detection result of the filter screen is normal operation, the filter screen does not report a fault, and monitoring is continued; when Y1 is smaller than Z and Y2 is larger than Z, if the duration of this state is longer than T1 and the accumulated running time of the filter screen is longer than T2, it indicates that the dust value of the environment where the user is located may be always higher, and the formaldehyde content may be relatively lower, so that the aldehyde removing capability of the filter screen is maintained at a higher level, and the dust removing capability is reduced, so that the user is reminded of the reduced efficiency of the filter screen and the need to replace the filter screen with a stronger dust removing capability (i.e. the dust removing filter screen). When Y1 is larger than Z and Y2 is smaller than Z, and at this time, Y3 and Y4 are kept at low values for a long time, namely within the respective corresponding thresholds, the variation is not obvious. If the duration of this state is greater than T1 and the accumulated running time of the filter screen is greater than T2, it means that the formaldehyde value of the environment in which the user is located may be always higher, and the dust content may be relatively lower, so that the dust removing capability of the filter screen is maintained at a higher level, and the formaldehyde removing capability is reduced. The user is reminded that the efficiency of the filter screen is reduced and the filter screen with stronger aldehyde removing capacity (namely the aldehyde removing filter screen) needs to be replaced, so that the adaptability of the air purifier to the current environment is improved. If Y3 and Y4 are not within the respective corresponding thresholds, it is indicated that a fault of the formaldehyde sensor or the temperature sensor may occur, and then the fault detection needs to be performed in time to avoid the influence on the judgment of the service life of the filter screen due to the problem of the fault of the sensor. If Y1 and Y2 are lower than Z for a long time and the accumulated time of the filter screen is longer than T2, judging that the service life of the filter screen is up, and reminding a user to replace the filter screen. Therefore, the current purifying capacity of the filter screen can be effectively analyzed through software processing by utilizing the indexes of the temperature and humidity values, the dust concentration values and the formaldehyde concentration values of the air inlet and the air outlet measured by the multiple sensors, so that the state of the filter screen can be effectively judged, and a user can be accurately and effectively reminded of replacing the filter screen.
In addition, in practical application, under the condition that Y1 and Y2 are lower than Z for a long time, the Y3 and Y4 can be continuously monitored, if Y3 and Y4 are not within the respective corresponding thresholds, the problem that the formaldehyde sensor or the temperature sensor is likely to be out of order is also described, and the judgment of the service life of the filter screen is prevented from being influenced due to the problem of the sensor failure by timely performing fault investigation.
By executing the steps, the method for detecting the service life of the filter screen accurately reflects the real-time state of the filter screen through the detection of the dust concentration, the formaldehyde concentration and the temperature and humidity of the air inlet and the air outlet of the air purifying equipment, is not interfered by the use scene and the air quality, ensures the accuracy of a detection result, and further can accurately and effectively remind a user to replace the filter screen and improve the use experience of the user.
Fig. 4 is a schematic structural diagram of a filter screen life detection device provided by the present invention, as shown in fig. 4, where the filter screen life detection device specifically includes:
the obtaining module 101 is configured to obtain a first dust concentration, a first formaldehyde concentration, a first temperature, and a first humidity of the air inlet, and a second dust concentration, a second formaldehyde concentration, a second temperature, and a second humidity of the air outlet. For details, see the description of step S101 in the above method embodiment.
The calculating module 102 is configured to calculate dust purifying efficiency of the filter screen using the first dust concentration and the second dust concentration, and calculate formaldehyde purifying efficiency of the filter screen using the first formaldehyde concentration and the second formaldehyde concentration. For details, see the description related to step S102 in the above method embodiment.
The detection module 103 is configured to determine a life detection result of the filter screen based on dust purification efficiency, formaldehyde purification efficiency, a temperature variation of the first temperature and the second temperature, and a humidity variation of the first humidity and the second humidity. For details, see the description of step S103 in the above method embodiment.
The filter screen life detection device provided by the embodiment of the invention is used for executing the filter screen life detection method provided by the embodiment, the implementation mode and the principle are the same, and details are referred to the related description of the method embodiment and are not repeated.
Through the cooperation of the components, the filter screen life detection device provided by the embodiment of the invention accurately reflects the real-time state of the filter screen through the detection of the dust concentration, the formaldehyde concentration and the temperature and humidity of the air inlet and the air outlet of the air purification equipment, is not interfered by the use scene and the air quality, ensures the accuracy of the detection result, and further can accurately and effectively remind a user to replace the filter screen and improve the use experience of the user.
Fig. 5 shows a structural diagram of a controller in an air cleaning device according to an embodiment of the present invention, and as shown in fig. 5, the electronic device may include a processor 901 and a memory 902, where the processor 901 and the memory 902 may be connected by a bus or other means, and in fig. 5, the connection is exemplified by a bus.
The processor 901 may be a central processing unit (Central Processing Unit, CPU). The processor 901 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination thereof.
The memory 902 is used as a non-transitory computer readable storage medium for storing non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the methods in the method embodiments described above. The processor 901 executes various functional applications of the processor and data processing, i.e., implements the methods in the above-described method embodiments, by running non-transitory software programs, instructions, and modules stored in the memory 902.
The memory 902 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for a function; the storage data area may store data created by the processor 901, and the like. In addition, the memory 902 may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 902 optionally includes memory remotely located relative to processor 901, which may be connected to processor 901 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
One or more modules are stored in the memory 902 that, when executed by the processor 901, perform the methods of the method embodiments described above.
The specific details of the controller may be correspondingly understood by referring to the corresponding related descriptions and effects in the above method embodiments, which are not repeated herein.
It will be appreciated by those skilled in the art that implementing all or part of the above-described embodiment method may be implemented by a computer program to instruct related hardware, and the program may be stored in a computer readable storage medium, and the program may include the above-described embodiment method when executed. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a Flash Memory (Flash Memory), a Hard Disk (HDD), or a Solid State Drive (SSD); the storage medium may also comprise a combination of memories of the kind described above.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations are within the scope of the invention as defined by the appended claims.
Claims (11)
1. The utility model provides a filter screen life-span detection method, is applied to air purification equipment, the filter screen set up in between air purification equipment's air intake and the air outlet, the filter screen's filtration thing is dust and formaldehyde, its characterized in that, the method includes:
acquiring a first dust concentration, a first formaldehyde concentration, a first temperature and a first humidity of the air inlet, and acquiring a second dust concentration, a second formaldehyde concentration, a second temperature and a second humidity of the air outlet;
calculating dust purification efficiency of the filter screen by using the first dust concentration and the second dust concentration, and calculating formaldehyde purification efficiency of the filter screen by using the first formaldehyde concentration and the second formaldehyde concentration;
and determining a service life detection result of the filter screen based on the dust purification efficiency, the formaldehyde purification efficiency, the temperature variation of the first temperature and the second temperature and the humidity variation of the first humidity and the second humidity.
2. The method according to claim 1, wherein the determining the lifetime detection result of the filter screen based on the dust purification efficiency, the formaldehyde purification efficiency, the temperature variation of the first temperature and the second temperature, and the humidity variation of the first humidity and the second humidity, comprises:
judging whether the current formaldehyde purification efficiency is smaller than a second preset purification efficiency or not;
when the current formaldehyde purification efficiency is smaller than a second preset purification efficiency, judging whether the temperature variation and/or the humidity variation is smaller than a corresponding temperature variation threshold and/or humidity variation threshold;
and when the temperature variation and the humidity variation are smaller than the corresponding temperature variation threshold and humidity variation threshold, determining that the service life detection result of the filter screen is that the filter screen needs to be replaced.
3. The method of claim 2, wherein prior to determining that the life detection of the filter screen is a need to replace the filter screen, the method further comprises:
counting a first time period when the temperature variation and the humidity variation are smaller than a corresponding temperature variation threshold and a corresponding humidity variation threshold;
and when the first time length reaches a first preset time length, determining that the service life detection result of the filter screen is that the filter screen needs to be replaced.
4. The method of claim 2, wherein the determining the life detection result of the filter screen based on the dust purification efficiency, the formaldehyde purification efficiency, the temperature variation of the first temperature and the second temperature, and the humidity variation of the first humidity and the second humidity, further comprises:
judging whether the current dust purification efficiency is smaller than a first preset purification efficiency or not;
when the current dust purification efficiency is smaller than the first preset purification efficiency, counting a second duration for which the current dust purification efficiency is smaller than the first preset purification efficiency;
and when the second time length reaches a second preset time length, determining that the service life detection result of the filter screen is that the filter screen needs to be replaced.
5. The method of claim 3 or 4, wherein prior to determining that the life detection of the filter screen is that a filter screen replacement is required, the method further comprises:
judging whether the current accumulated use time length of the filter screen is longer than a third preset time length, wherein the third preset time length is the minimum work time length for maintaining the normal work state of the filter screen;
and when the current accumulated use time of the filter screen is longer than a third preset time, determining that the service life detection result of the filter screen is that the filter screen needs to be replaced.
6. The method of claim 5, wherein a screen replacement prompt is provided when the screen life detection result is that a screen needs to be replaced.
7. The method according to claim 2, wherein a fault warning is performed when the temperature variation is not less than a corresponding temperature variation threshold and/or the humidity variation is not less than a corresponding humidity variation threshold.
8. The utility model provides a filter screen life-span detection device, is applied to air purification equipment, the filter screen set up in between air purification equipment's the air intake and the air outlet, the filter screen's filtration thing is dust and formaldehyde, its characterized in that, the device includes:
the acquisition module is used for acquiring the first dust concentration, the first formaldehyde concentration, the first temperature and the first humidity of the air inlet, and the second dust concentration, the second formaldehyde concentration, the second temperature and the second humidity of the air outlet;
the calculation module is used for calculating dust purification efficiency of the filter screen by using the first dust concentration and the second dust concentration, and calculating formaldehyde purification efficiency of the filter screen by using the first formaldehyde concentration and the second formaldehyde concentration;
the detection module is used for determining a service life detection result of the filter screen based on the dust purification efficiency, the formaldehyde purification efficiency, the temperature variation of the first temperature and the second temperature and the humidity variation of the first humidity and the second humidity.
9. An air cleaning apparatus comprising: the filter screen, the filter screen set up in between air purification equipment's the air intake and the air outlet, the filter screen's filtration thing is dust and formaldehyde, its characterized in that, equipment still includes: the controller is used for controlling the operation of the controller,
the controller includes: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory having stored therein computer instructions, the processor executing the computer instructions to perform the method of detecting a lifetime of a sieve of any one of claims 1-7.
10. The air cleaning apparatus of claim 9, wherein the air cleaning apparatus is an air cleaner.
11. A computer readable storage medium having stored thereon computer instructions for causing a computer to perform the screen life detection method of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310037386.2A CN116294176A (en) | 2023-01-09 | 2023-01-09 | Filter screen service life detection method, device, medium and air purification equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310037386.2A CN116294176A (en) | 2023-01-09 | 2023-01-09 | Filter screen service life detection method, device, medium and air purification equipment |
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| CN116294176A true CN116294176A (en) | 2023-06-23 |
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| CN202310037386.2A Pending CN116294176A (en) | 2023-01-09 | 2023-01-09 | Filter screen service life detection method, device, medium and air purification equipment |
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| Country | Link |
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| CN (1) | CN116294176A (en) |
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