CN107606742A - Determination method and device, clarifier, the storage medium of filter screen service life - Google Patents
Determination method and device, clarifier, the storage medium of filter screen service life Download PDFInfo
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- 239000000428 dust Substances 0.000 claims abstract description 194
- 238000000746 purification Methods 0.000 claims description 117
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
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- 238000012935 Averaging Methods 0.000 description 2
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Abstract
The embodiment of the invention discloses a kind of determination method and device, clarifier, the storage medium of filter screen service life.Methods described includes:Obtain the status information for the dust sensor being arranged on clarifier;Obtain the dust concentration value in the clarifier local environment;Obtain the operation power attenuation information for being arranged at blower fan in clarifier;Weight coefficient corresponding to each parameter at least two parameters is adjusted based at least one of the status information, the dust concentration value and operation power attenuation information information;At least two parameter is used for the service life for calculating the filter screen of the clarifier;Wherein, at least two parameter comprises at least:The usage time parameter of filter screen;First weight coefficient corresponding to the usage time parameter of the filter screen adjusts in the first span higher than average threshold;Weight coefficient adjusts in the second span less than the average threshold corresponding to other specification in addition to the usage time parameter of the filter screen.
Description
Technical Field
The invention relates to the technical field of purifiers, in particular to a method and a device for determining the service life of a filter screen, a purifier and a storage medium.
Background
The filter screen is an important component of the purifier, and the quality of the filter screen directly influences the purifying effect of the purifier. For the filter screen, the service life is an index which is more concerned by users.
At present, the service life of a filter screen is obtained according to a traditional life calculation method, for example: countdown, acceleration-deceleration, and so on. Taking a countdown method as an example, after the filter screen is inserted into the purifier, the timer is manually operated to reset the time, then the timer starts to count down from a certain fixed time, and when the timer reaches zero, the user is reminded to replace the filter screen. Under different service environments, the service lives calculated by the single service life calculation method are basically not different, even a scrapped filter screen is replaced, the same service life can be calculated, and therefore the actual service life of the filter screen cannot be effectively reflected by the conventional service life calculation method.
Disclosure of Invention
In order to solve the existing technical problems, embodiments of the present invention provide a method and an apparatus for determining a service life of a filter screen, a purifier, and a storage medium.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a method for determining the service life of a filter screen, which comprises the following steps:
acquiring state information of a dust sensor arranged on the purifier;
obtaining a dust concentration value in the environment where the purifier is located;
obtaining running power attenuation information of a fan arranged in the purifier;
a weighting coefficient corresponding to each of at least two parameters based on at least one of the status information, the dust concentration value adjustment and the operating power attenuation information; the at least two parameters are used for calculating the service life of a filter screen of the purifier;
wherein the at least two parameters include at least: the service time parameter of the filter screen; adjusting a first weight coefficient corresponding to the service time parameter of the filter screen within a first value range higher than an average threshold value; the weight coefficients corresponding to other parameters except the service time parameter of the filter screen are adjusted within a second value range lower than the average threshold value; the average threshold is determined based on the number of the at least two parameters.
In the foregoing solution, the adjusting a weighting factor corresponding to each of at least two parameters based on at least one of the status information, the dust concentration value, and the operating power attenuation information includes:
and when the state information indicates that the dust sensor is in a fault state, adjusting the first weight coefficient to be a preset maximum value in the first value range, and adjusting the weight coefficients corresponding to the other parameters to be a preset minimum value in the second value range.
In the foregoing solution, the adjusting a weighting factor corresponding to each of at least two parameters based on at least one of the status information, the dust concentration value, and the operating power attenuation information includes:
when the state information indicates that the dust sensor is in a normal state, adjusting a weight coefficient corresponding to each parameter of the at least two parameters based on the dust concentration value;
when the dust concentration value is increased, the first weight coefficient is reduced in the first value range, and the weight coefficients corresponding to the other parameters are increased in the second value range.
In the above scheme, the at least two parameters include: operating power decay information; the adjusting a weight coefficient corresponding to each of at least two parameters based on at least one of the status information, the dust concentration value, and the operating power attenuation information includes:
adjusting a weight coefficient corresponding to each of the at least two parameters based on the operating power attenuation information;
when the operating power attenuation information shows that the attenuation degree of the fan is increased, the first weight coefficient is adjusted to be lower in the first value range, and the weight coefficient corresponding to the operating power attenuation information is adjusted to be higher in the second value range.
In the above scheme, the method further comprises: determining the service life of the filter screen based on the at least two parameters and the weight coefficient corresponding to each parameter;
and obtaining a wind speed parameter of the purifier, and adjusting the service life of the filter screen based on the wind speed parameter to obtain the corrected service life of the filter screen.
In the above scheme, the at least two parameters include: a percentage purge parameter; the purification percentage parameter is obtained from the total purification amount of the filter screen and the accumulated purification amount of the filter screen;
the method further comprises the following steps: obtaining the purification efficiency of the filter screen, adjusting the accumulated purification amount of the filter screen based on the purification efficiency of the filter screen to obtain a corrected accumulated purification amount, and determining the purification percentage parameter based on the corrected accumulated purification amount and the total purification amount of the filter screen.
The embodiment of the invention also provides a device for determining the service life of the filter screen, which comprises a first obtaining unit, a second obtaining unit and an adjusting unit; wherein,
the first acquisition unit is used for acquiring a dust concentration value in the environment where the purifier is located; the dust sensor is also used for obtaining the state information of the dust sensor arranged on the purifier;
the second acquisition unit is used for acquiring running power attenuation information of a fan arranged in the purifier;
the adjusting unit is used for adjusting a weight coefficient corresponding to each of at least two parameters based on at least one of the state information obtained by the first obtaining unit, the dust concentration value and the operating power attenuation information obtained by the second obtaining unit; the at least two parameters are used for calculating the service life of a filter screen of the purifier;
wherein the at least two parameters include at least: the service time parameter of the filter screen; adjusting a first weight coefficient corresponding to the service time parameter of the filter screen within a first value range higher than an average threshold value; the weight coefficients corresponding to other parameters except the service time parameter of the filter screen are adjusted within a second value range lower than the average threshold value; the average threshold is determined based on the number of the at least two parameters.
In the foregoing scheme, the adjusting unit is configured to, when the state information indicates that the detecting unit is in a fault state, adjust the first weight coefficient to be a preset maximum value in the first value range, and adjust the weight coefficients corresponding to the other parameters to be a preset minimum value in the second value range.
In the foregoing solution, the adjusting unit is configured to adjust a weight coefficient corresponding to each of the at least two parameters based on the dust concentration value when the status information indicates that the detecting unit is in a normal status; when the dust concentration value is increased, the first weight coefficient is reduced in the first value range, and the weight coefficients corresponding to the other parameters are increased in the second value range.
In the above scheme, the at least two parameters include: operating power decay information; the adjusting unit is configured to adjust a weight coefficient corresponding to each of the at least two parameters based on the operating power attenuation information; when the operating power attenuation information shows that the attenuation degree of the fan is increased, the first weight coefficient is adjusted to be lower in the first value range, and the weight coefficient corresponding to the operating power attenuation information is adjusted to be higher in the second value range.
In the above scheme, the apparatus further comprises a determining unit; wherein,
the second obtaining unit is used for obtaining at least two parameters;
the determining unit is configured to determine the service life of the filter screen based on the at least two parameters obtained by the second obtaining unit and the weight coefficient corresponding to each parameter adjusted by the adjusting unit;
the first acquisition unit is further used for acquiring a wind speed parameter of the purifier;
the determining unit is further configured to adjust the service life of the filter screen based on the wind speed parameter obtained by the first obtaining unit, so as to obtain a corrected service life of the filter screen.
In the above scheme, the at least two parameters include: a percentage purge parameter;
the second acquisition unit is used for acquiring the purification efficiency of the filter screen, adjusting the accumulated purification amount of the filter screen based on the purification efficiency of the filter screen to acquire a corrected accumulated purification amount, and determining the purification percentage parameter based on the corrected accumulated purification amount and the total purification amount of the filter screen.
The embodiment of the invention also provides a storage medium, on which computer instructions are stored, and the instructions are executed by a processor to implement the steps of the method for determining the service life of the filter screen according to the embodiment of the invention.
The embodiment of the invention also provides a purifier, which comprises a memory, a processor and a computer program which is stored on the memory and can be run on the processor, wherein the processor executes the program to realize the steps of the method for determining the service life of the filter screen.
The embodiment of the invention provides a method and a device for determining the service life of a filter screen, a purifier and a storage medium, wherein the method comprises the following steps: acquiring state information of a dust sensor arranged on the purifier; obtaining a dust concentration value in the environment where the purifier is located; obtaining running power attenuation information of a fan arranged in the purifier; adjusting a weight coefficient corresponding to each of at least two parameters based on at least one of the status information, the dust concentration value and the operating power attenuation information; the at least two parameters are used for calculating the service life of a filter screen of the purifier; wherein the at least two parameters include at least: the service time parameter of the filter screen; adjusting a first weight coefficient corresponding to the service time parameter of the filter screen within a first value range higher than an average threshold value; the weight coefficients corresponding to other parameters except the service time parameter of the filter screen are adjusted within a second value range lower than the average threshold value; the average threshold is determined based on the number of the at least two parameters. By adopting the technical scheme of the embodiment of the invention, in the process of calculating the service life of the filter screen based on at least two parameters, the weight coefficient corresponding to each parameter is adjusted by combining at least one of the state information of the dust sensor on the purifier, the dust concentration condition in the current environment and the running power attenuation degree of the fan, and finally the service life of the filter screen is obtained.
Drawings
FIG. 1 is a schematic flow chart illustrating a method for determining a service life of a filter screen according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a method for determining a service life of a filter screen according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a method for determining a service life of a filter screen according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a device for determining the service life of a filter screen according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another component of the device for determining the service life of the filter screen according to the embodiment of the present invention.
Detailed Description
Before describing the method for determining the service life of the filter screen in the embodiment of the present invention in detail, a purifier to which the method for determining the service life of the filter screen is applied will be described first. The components of the purifier mainly comprise: the wind-driven air purifier comprises a front cover, a filter screen, a fan and a rear cover, wherein an air inlet is formed in the front cover, an air outlet is formed in the rear cover, wind flow generated under the action of the fan penetrates through the filter screen from the air inlet to flow to the air outletTherefore, the air flowing out of the air outlet is the air purified by the filter screen. Of course, the purifier may have more components to achieve more abundant functions, for example, a high performance material and an activated carbon material for adsorbing fine particles and abnormal flavor macromolecules are disposed between the filter screen and the blower, and TiO for removing odor and smoke may be disposed2A layer and an ultraviolet lamp for removing odor and sterilizing, etc.
In the embodiment of the invention, the type of the filter screen of the purifier is not limited, and the filter screen can be a particulate filter screen or an organic filter screen. Wherein, the particle filter screens are divided into coarse filter screens and fine particle filter screens; the organic filter screens are classified into formaldehyde removal filter screens, deodorization filter screens, activated carbon filter screens, super-light mineralization filter screens and the like. The pollution sources mainly aimed at by each filter screen are different, and the filtering principle is also different.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a method for determining the service life of a filter screen. FIG. 1 is a schematic flow chart illustrating a method for determining a service life of a filter screen according to an embodiment of the present invention; as shown in fig. 1, the method includes:
step 101: the method comprises the steps of obtaining state information of a dust sensor arranged on a purifier, obtaining a dust concentration value in the environment where the purifier is located, and obtaining running power attenuation information of a fan arranged in the purifier.
Step 102: adjusting a weight coefficient corresponding to each of at least two parameters based on at least one of the status information, the dust concentration value and the operating power attenuation information; the at least two parameters are used to calculate the service life of the filter screen of the purifier. Wherein the at least two parameters include at least: the service time parameter of the filter screen; adjusting a first weight coefficient corresponding to the service time parameter of the filter screen within a first value range higher than an average threshold value; the weight coefficients corresponding to other parameters except the service time parameter of the filter screen are adjusted within a second value range lower than the average threshold value; the average threshold is determined based on the number of the at least two parameters.
In this embodiment, the dust sensor disposed on the purifier is used to detect a dust concentration value; the dust concentration value detected by the dust sensor except the air outlet of the purifier (for example, the air inlet) can be used as the dust concentration value in the environment where the purifier is located. In one embodiment, the dust sensor may be a PM2.5 sensor, and the PM2.5 sensor may be used to detect a dust concentration value in the air, i.e., a PM2.5 value. The PM2.5 sensor is based on the light scattering principle, particles and molecules can generate light scattering under the irradiation of light, and simultaneously, the light intensity can be attenuated by absorbing the energy of part of the irradiated light, when a beam of parallel monochromatic light is incident to a measured particle field, the parallel monochromatic light is influenced by the scattering and absorption around the particles, so that the relative attenuation rate of the incident light passing through the field to be measured can be obtained, the relative attenuation rate basically reflects the relative concentration of dust in the field to be measured linearly, the light intensity is in direct proportion to the strength of an electric signal converted by photoelectricity, the relative attenuation rate can be obtained by measuring the electric signal, and the concentration of the dust in the field to be measured can be measured.
In this embodiment, the status information of the dust sensor includes a fault status or a normal status; the normal state indicates that the dust sensor is in a normal use state, and the detected dust concentration value is correct; the fault state indicates that the dust sensor is in an abnormal state, and the detected dust concentration value has a larger deviation than the dust concentration value in a normal state, or the dust concentration value cannot be detected.
In this embodiment, the operating power attenuation information of the fan may specifically be an operating power attenuation percentage parameter of the fan, and the operating power attenuation percentage parameter of the fan may be determined based on the operating power of the fan. Specifically, the operating power of the fan can be calculated by detecting the feedback current of the fan, and the operating power calculation formula of the fan is as follows: and P is the running power, U is the voltage on two sides of the fan, and I is the current passing through the fan. In practical application, the percentage parameter of the attenuation of the operating power of the fan is (rated operating power of the fan-current operating power of the fan)/rated operating power of the fan × 100%, where the percentage parameter of the current operating power of the fan/rated operating power of the fan × 100% is the percentage parameter of the current operating power of the fan. Here, the rated operation power of the fan refers to the operation power of the fan corresponding to a new filter screen installed in the purifier. For example, the operating power of the fan is 1000W when the new filter screen is used, and when the filter screen is dirty due to covering dust, the power of the fan is attenuated to 200W-300W, namely the operating power of the fan is attenuated by a percentage parameter of 70% -80%. Based on this, the operating power decay information of the fan (e.g., the percentage operating power decay parameter of the fan) may indicate the degree of dust fouling of the filter screen in the purifier.
In this embodiment, the service life of the filter screen is determined based on the at least two parameters and the weight coefficient corresponding to each parameter, specifically, the service life of the filter screen is calculated by performing weighted summation on the weight coefficient corresponding to each parameter of the at least two parameters. For example, taking two parameters as an example, the service life of the filter screen is equal to the first weight coefficient x the first service life obtained based on the parameter 1 + the second weight coefficient x the second service life obtained based on the parameter 2. The first weight coefficient and the second weight coefficient are adjusted based on at least one of the obtained state information of the dust sensor, the dust concentration value in the environment where the current purifier is located, and the running power attenuation information of the fan, so that a more real and accurate filter screen life is obtained. By analogy, when there are three parameters, the first weight coefficient, the second weight coefficient and the third weight coefficient corresponding to the three parameters are adjusted based on at least one of the obtained state information of the dust sensor, the dust concentration value in the current environment where the purifier is located, and the operating power attenuation information of the fan, and detailed description is not given in this embodiment.
In this embodiment, an average threshold is determined based on the number of at least two parameters, and two value ranges including a first value range higher than the average threshold and a second value range lower than the average threshold may be determined based on the average threshold, where it is understood that the first value range is between the average threshold and 1, and the second value range is between 0 and the average threshold. As an embodiment, when there are two parameters, that is, the number of the parameters is two, the average threshold may be 0.5, and the weight coefficient corresponding to one of the two parameters is adjusted between 0.5 and 1; the other parameter is adjusted by a weight factor between 0 and 0.5. As another embodiment, when there are three parameters, that is, the number of the parameters is three, the average threshold may be 1/3, and the weight coefficient corresponding to at least one of the three parameters is adjusted between 1/3 and 1, and the weight coefficients corresponding to the other parameters than the at least one of the three parameters are adjusted between 0 and 1/3. It is understood that the average threshold is 1/number of parameters.
In this embodiment, at least two parameters at least include a service time parameter of the filter screen; adjusting a first weight coefficient corresponding to the service time of the filter screen within a first value range higher than the average threshold value, namely adjusting the first weight coefficient between the average threshold value and 1; correspondingly, the weight coefficients corresponding to the parameters except the service time of the filter screen are adjusted between 0 and the average threshold (i.e. the second value range).
In this embodiment, adjusting the weight coefficient corresponding to each of the at least two parameters based on at least one of the status information, the dust concentration value, and the operating power attenuation information may include at least the following embodiments:
in a first embodiment, when the state information indicates that the dust sensor is in a fault state, the first weight coefficient is adjusted to be a preset maximum value in the first value range, and the weight coefficients corresponding to the other parameters are adjusted to be a preset minimum value in the second value range.
Specifically, in this embodiment, as an example, the preset maximum value may be a maximum value in the first value range, that is, the preset maximum value may be 1, that is, the first weight coefficient may be adjusted to be 1; correspondingly, the preset minimum value may be a minimum value in the second value range, that is, the preset minimum value may be 0, that is, the second weight coefficient may be adjusted to be 0; it is understood that in the present embodiment, the service life of the filter screen is completely determined by the service life of the filter screen obtained based on the service time parameter of the filter screen (in the embodiments of the present invention, the service life of the filter screen determined based on the service time parameter of the filter screen is referred to as the first service life). As another example, a first threshold value is preconfigured in a first value range, and a second threshold value is preconfigured in a second value range; the preset maximum value can be any value between a first threshold value and 1; the preset minimum value can be any value between 0 and a second threshold value; it can be understood that, in this embodiment, the first service life corresponding to the service time parameter of the filter screen plays a great role in calculating the service life of the filter screen, but is not completely dependent on the first service life, and the service lives corresponding to other parameters also play a certain role in calculating the service life of the filter screen.
In a second embodiment, when the status information indicates that the dust sensor is in a normal status, a weighting coefficient corresponding to each of the at least two parameters is adjusted based on the dust concentration value; when the dust concentration value is increased, the first weight coefficient is reduced in the first value range, and the weight coefficients corresponding to the other parameters are increased in the second value range.
Specifically, in this embodiment, the first weight coefficient is adjusted to be decreased along with an increase in the dust concentration value of the environment where the current purifier is located, that is, the first weight coefficient is adjusted to be decreased within the first value range; correspondingly, the weight coefficients corresponding to other parameters are increased in the second value range. It can be understood that, along with the increase of the dust concentration of the current environment, the first service life corresponding to the parameter of properly reducing the service time of the filter screen plays a role in calculating the service life of the filter screen, and the other parameters are promoted to play a role in calculating the service life of the filter screen. As an embodiment, the other parameter is specifically a parameter related to the purification capacity of the filter screen, so that a more real and accurate filter screen life can be obtained.
In practical applications, as an embodiment, the adjusted weight coefficient may be determined in a functional manner; the function takes the dust concentration value as a variable and outputs a weight coefficient. As another embodiment, the dust concentration value may be divided into a plurality of ranges in advance, a plurality of first values are predetermined in the first value range corresponding to the plurality of ranges, and/or a plurality of second values are predetermined in the second value range corresponding to the plurality of ranges, it is detected that the dust concentration value in the current environment is in one range, since the service time parameter of the filter screen plays a greater role in the life calculation process of the filter screen, it is determined that the first value corresponding to the range in the first value range is the first weight coefficient, the first value exceeds 0.5, the weight coefficient corresponding to the other parameter may be determined based on 1 minus the first weight coefficient, and if the other parameter is only one parameter, the weight coefficient corresponding to the other parameter is 1 minus the first weight coefficient; if the other parameters include at least two parameters, the weighting coefficients corresponding to the at least two parameters may be determined by subtracting the first weighting coefficient from 1 and averaging, and further, the weighting coefficients corresponding to the at least two parameters may be adjusted based on the averaging.
In a third embodiment, the at least two parameters further comprise: operating power decay information; adjusting a weight coefficient corresponding to each of the at least two parameters based on the operating power attenuation information; when the operating power attenuation information shows that the attenuation degree of the fan is increased, the first weight coefficient is adjusted to be lower in the first value range, and the weight coefficient corresponding to the operating power attenuation information is adjusted to be higher in the second value range.
Specifically, in this embodiment, the first weight coefficient is adjusted to be decreased along with an increase in the dust concentration value of the environment where the current purifier is located, that is, the first weight coefficient is adjusted to be decreased within the first value range; correspondingly, the weight coefficient corresponding to the running power attenuation information of the fan is increased in the second value range. It can be understood that, along with the power attenuation degree of the fan becoming bigger and bigger, that is, the filth degree of the filter screen becoming more and more serious, the operation power attenuation information of the proper promotion fan plays a role in calculating the service life of the filter screen, and the corresponding first service life of the service time parameter of the corresponding proper reduction filter screen plays a role in calculating the service life of the filter screen, so that the more real and accurate service life of the filter screen can be obtained.
In a fourth embodiment, the at least two parameters further comprise: operating power decay information; adjusting a weight coefficient corresponding to each parameter of the at least two parameters based on the operating power attenuation information and the dust concentration value; when the dust concentration value is increased, the weight coefficient corresponding to the parameter related to the dust concentration value is increased in the second value range, and when the operation power attenuation information shows that the attenuation degree of the fan is increased, the weight coefficient corresponding to the operation power attenuation information is increased in the second value range.
The following description will be given of specific applications of adjusting the respective weighting coefficients by taking at least two parameters (among which, the service time parameter of the filter screen is necessary) of the four parameters as an example; the service time parameter of the filter screen corresponds to a first weight coefficient, the purification efficiency corresponds to a second weight coefficient, the purification percentage parameter corresponds to a third weight coefficient, and the running power attenuation percentage corresponds to a fourth weight coefficient; calculating to obtain a first service life based on the service time parameter of the filter screen, calculating to obtain a second service life based on the purification efficiency, calculating to obtain a third service life based on the purification percentage parameter, calculating to obtain a fourth service life based on the operation power attenuation percentage, and then:
in the first scenario, if the dust sensor is in a normal state and the dust concentration value in the current environment is always lower than 20ug, which indicates that the current environment is very good, the first weight coefficient may be adjusted to 1, and the second weight coefficient may be adjusted to 0; the service life of the filter screen is equal to a first service life determined based on the service time parameter of the filter screen;
in the second scenario, if the dust sensor is in a normal state, and the dust concentration value in the current environment is greater than 20ug and less than 100ug, the first weight coefficient can be adjusted to 70%, and the second weight coefficient can be adjusted to 30%; the service life of the filter screen is 70% multiplied by the first service life + 30% multiplied by the second service life; the second useful life may be calculated based on the purification efficiency;
in a third scenario, if the dust sensor is in a normal state and the dust concentration value in the current environment is greater than 100ug, the first weight coefficient may be adjusted to 50%, the second weight coefficient may be adjusted to 30%, and the third weight coefficient may be adjusted to 20%; the service life of the filter screen is 50% multiplied by the first service life + 30% multiplied by the second service life + 20% multiplied by the third service life;
in a fourth scenario, if the dust sensor is in a fault state, that is, the dust concentration value of the current environment cannot be determined, the first weight coefficient can be adjusted to 1, and the second weight coefficient can be adjusted to 0; the service life of the filter screen is equal to a first service life determined based on the service time parameter of the filter screen;
in a fifth scenario, if the operating power attenuation percentage is lower than the first preset threshold, which may indicate that the filter screen is slightly clogged, the first weight coefficient may be adjusted to 1, and the fourth weight coefficient may be adjusted to 0, or the first weight coefficient may be adjusted to 90%, and the fourth weight coefficient may be adjusted to 10%, where the service time parameter of the filter screen still plays a decisive role in the determination process of the service life of the filter screen.
In a sixth scenario, if the operating power attenuation percentage is higher than a second preset threshold, and the second preset threshold is higher than the first preset threshold, which may indicate that the filter screen is lightly and seriously clogged, the first weight coefficient may be adjusted to 60%, and the fourth weight coefficient may be adjusted to 40%, where the service life of the filter screen is 60% × first service life + 40% × fourth service life; this scenario enhances the effect of the percentage of operating power attenuation on the life of the filter screen.
In a seventh scenario, if the operating power attenuation percentage is higher than a second preset threshold, the dust concentration value in the current environment is greater than 20ug and less than 100ug, which may indicate that the current filter screen is lightly and seriously clogged, and a certain dust pollution condition exists in the current environment, the first weight coefficient may be adjusted to 50%, the second weight coefficient may be adjusted to 15%, the third weight coefficient may be adjusted to 15%, and the fourth weight coefficient may be adjusted to 20%, where the service life of the filter screen is 50% × the first service life + 15% × the second service life + 15% × the third service life + 20% × the fourth service life;
in an eighth scenario, if the operating power attenuation percentage is higher than the second preset threshold, and the dust concentration value in the current environment is greater than 100ug, it may be indicated that the current filter screen is dirty and is relatively serious, and the current environmental pollution is relatively serious, the first weight coefficient may be adjusted to 40%, the second weight coefficient may be adjusted to 20%, the third weight coefficient may be adjusted to 20%, and the fourth weight coefficient may be adjusted to 20%, where the service life of the filter screen is 40% × first service life + 20% × second service life + 20% × third service life + 20% × fourth service life.
By adopting the technical scheme of the embodiment of the invention, in the process of calculating the service life of the filter screen based on at least two parameters, the weight coefficient corresponding to each parameter is adjusted by combining at least one of the state information of the dust sensor on the purifier, the dust concentration condition in the current environment and the running power attenuation degree of the fan, and finally the service life of the filter screen is obtained.
The embodiment of the invention also provides a method for determining the service life of the filter screen. FIG. 2 is a schematic flow chart illustrating a method for determining a service life of a filter screen according to an embodiment of the present invention; as shown in fig. 2, the method includes:
step 201: the method comprises the steps of obtaining state information of a dust sensor arranged on a purifier, obtaining a dust concentration value in the environment where the purifier is located, and obtaining running power attenuation information of a fan arranged in the purifier.
Step 202: adjusting a weight coefficient corresponding to each of at least two parameters based on at least one of the status information, the dust concentration value and the operating power attenuation information; the at least two parameters are used to calculate the service life of the filter screen of the purifier. Wherein the at least two parameters include at least: the service time parameter of the filter screen; adjusting a first weight coefficient corresponding to the service time parameter of the filter screen within a first value range higher than an average threshold value; the weight coefficients corresponding to other parameters except the service time parameter of the filter screen are adjusted within a second value range lower than the average threshold value; the average threshold is determined based on the number of the at least two parameters.
Step 203: and determining the service life of the filter screen based on the at least two parameters and the weight coefficient corresponding to each parameter.
Step 204: and obtaining a wind speed parameter of the purifier, and adjusting the service life of the filter screen based on the wind speed parameter to obtain the corrected service life of the filter screen.
In this embodiment, the steps 201 to 202 correspond to the steps 101 to 102 in the foregoing embodiment, respectively, and therefore, a person skilled in the art can understand the steps 201 to 202 with reference to the foregoing embodiment, and details are not described herein for brevity.
In this embodiment, the service life of the filter screen is determined based on the at least two parameters and the weight coefficient corresponding to each parameter, specifically, the service life of the filter screen is calculated by performing weighted summation on the at least two parameters and the corresponding weight coefficients. For example, taking two parameters as an example, the service life of the filter screen is equal to the first weight coefficient x the first service life obtained based on the parameter 1 + the second weight coefficient x the second service life obtained based on the parameter 2.
Wherein, the parameters can be the service time parameter of the filter screen, the purification efficiency of the filter screen, the purification percentage parameter of the filter screen and the running power attenuation information of the fan; calculating to obtain a first service life based on the service time parameter of the filter screen, calculating to obtain a second service life based on the purification efficiency of the filter screen, calculating to obtain a third service life based on the purification percentage parameter of the filter screen, and calculating to obtain a fourth service life based on the running power attenuation information of the fan; the at least two parameters may include a time of use parameter of the screen and at least one of a screen cleaning efficiency, a percentage of cleaning of the screen parameter, and operating power decay information of the fan, and the at least two parameters may also be a first life and include at least one of a second life, a third life, and a fourth life.
In the embodiment, due to the operation of the motor and the fan in the purifier, the air to be purified can enter the purifier from the air inlet and be released to the ambient environment from the air outlet; the rotating speed of the fan is different due to the difference of the rotating speed of the motor, so that the flowing speed of the air in the purifier is different. Here, the wind speed parameter may specifically be a parameter capable of changing the air flow speed, such as the rotation speed of the motor/fan. In practical application, the larger the wind speed parameter is, namely the faster the air flow speed is, the larger the dust collection amount of the filter screen is, the longer the service life loss of the filter screen is correspondingly increased, and the longer the service life of the filter screen is correspondingly shortened; on the contrary, the smaller the wind speed parameter, i.e. the slower the air flow speed, the smaller the dust collection amount of the filter screen, the smaller the life loss of the filter screen, and the longer the service life of the filter screen.
Therefore, in the process of obtaining the service life of the filter screen based on the calculation in step 203, the calculation can be performed based on the pre-configured average wind speed parameter. In step 204, after obtaining the wind speed parameter of the purifier, comparing the wind speed parameter with the average wind speed parameter, and if the wind speed parameter is higher than the average wind speed parameter, reducing the service life of the filter screen, that is, the service life of the corrected filter screen is shorter than the service life of the filter screen; and if the wind speed parameter is higher than the average wind speed parameter, prolonging the service life of the filter screen, and if the corrected service life of the filter screen is longer than the service life of the filter screen. In practical application, an adjustment value of the service life of the filter screen can be configured in advance according to the difference value of the wind speed parameter and the average wind speed parameter, the difference value of the wind speed parameter and the average wind speed parameter is obtained through comparison, a corresponding adjustment value is determined, the service life of the filter screen is adjusted based on the adjustment value, and the service life of the corrected filter screen is obtained.
By adopting the technical scheme of the embodiment of the invention, on one hand, in the process of calculating the service life of the filter screen based on at least two parameters, the weight coefficient corresponding to each parameter is adjusted by combining at least one of the state information of the dust sensor on the purifier, the dust concentration condition in the current environment and the running power attenuation degree of the fan, and the service life of the filter screen is finally obtained; on the other hand, the service life of the obtained filter screen is corrected based on the wind speed parameters, the service life of the filter screen determined by adopting the mode is more consistent with the real service life of the filter screen, and the accuracy of the service life of the filter screen is improved.
The embodiment of the invention also provides a method for determining the service life of the filter screen. FIG. 3 is a schematic flow chart illustrating a method for determining a service life of a filter screen according to an embodiment of the present invention; as shown in fig. 3, the method includes:
step 301: obtaining at least two of the following screen parameters in the purifier: the method comprises the following steps of obtaining running power attenuation information of a fan arranged in a purifier by using filter screen purification efficiency, filter screen purification percentage parameters and filter screen service time parameters; the at least two screen parameters include: and the service time parameter of the filter screen.
Step 302: and respectively determining at least two service lives of the corresponding filter screens based on the at least two filter screen parameters.
Step 303: and acquiring state information of a dust sensor arranged on the purifier, and acquiring a dust concentration value in the environment where the purifier is located.
Step 304: adjusting a weighting factor corresponding to each of the at least two service lives based on at least one of the status information, the dust concentration value, and the operating power decay information.
Step 305: and determining the service life of the filter screen based on the at least two service lives and the weight coefficient corresponding to each adjusted service life.
In this embodiment, obtain filter screen purification efficiency, include: detecting a first dust concentration value at the air outlet by using a first dust sensor arranged at the air outlet of the purifier, and detecting a second dust concentration value at the air inlet by using a second dust sensor arranged at the air inlet of the purifier; determining a purification efficiency of a filter screen in the purifier based on the first dust concentration value and the second dust concentration value; correspondingly, based on the purification efficiency of the filter screen, a first service life of the filter screen is determined.
In the embodiment of the invention, a first dust sensor is arranged at the air outlet of the purifier, and a second dust sensor is arranged at the air inlet of the purifier. The second dust concentration value detected by the second dust sensor represents a dust concentration value before air purification, namely a dust concentration value of the external environment; the first dust concentration value detected by the first dust sensor represents the air-cleaned dust concentration value.
As another embodiment, a rotatable dust sensor arranged in the purifier can be used for detecting a first dust concentration value before filtration and a second dust concentration value after filtration; detecting a first dust concentration value when the dust sensor rotates to a specific position; when the dust sensor is turned to another specific location, a second dust concentration value is detected.
In the embodiment of the invention, the purification efficiency of the filter screen represents the dust filtering capacity of the filter screen, and based on the capacity, the purification efficiency of the filter screen in the purifier can be calculated through the first dust concentration value and the second dust concentration value. In one embodiment, the purification efficiency of the filter screen is determined by the ratio of the first dust concentration value to the second dust concentration value, wherein a larger ratio represents a lower purification efficiency, and a smaller ratio represents a higher purification efficiency. It can be seen that determining the purification efficiency of the screen in the purifier requires performing the following operations: and calculating the ratio of the first dust concentration value to the second dust concentration value to obtain the purification efficiency, wherein the value range of the purification efficiency is 0-1.
Of course, the calculation method of the purification efficiency of the filter screen is not limited to be determined by the ratio of the first dust concentration value and the second dust concentration value, for example, in another embodiment, the purification efficiency of the filter screen is determined by the difference value between the second dust concentration value and the first dust concentration value, in this case, the larger the difference value is, the higher the purification efficiency is, and the smaller the difference value is, the lower the purification efficiency is.
In this embodiment, the value range (i.e., 0 to 1) of the purification efficiency is divided into N number of value ranges, where N is an integer and N is greater than or equal to 2, and each of the value ranges corresponds to one service life; determining a numerical range to which the calculated purification efficiency belongs from the N numerical ranges as a target numerical range; and determining the service life corresponding to the target numerical range, and taking the service life as the second service life of the filter screen.
In this embodiment, the purge percentage parameter is obtained from the total purge amount of the filter and the cumulative purge amount of the filter. Specifically, obtaining the purification percentage parameters of the filter screen comprises: acquiring the total purification amount of a filter screen in a purifier, and calculating the accumulated purification amount of the filter screen; determining a percent clean parameter for the screen based on the total clean capacity of the screen and the cumulative clean capacity of the screen; correspondingly, a third service life of the filter screen is determined based on the purification percentage parameter of the filter screen.
Wherein, the total purification capacity of filter screen specifically includes in the acquisition clarifier: and acquiring the maximum dust holding capacity (CCM) of a filter screen in the purifier, and taking the CCM as the total purification capacity of the filter screen. Here, CCM refers to the maximum dust holding capacity of the filter screen, and for example, if CCM is 50000, the filter screen is scrapped when the accumulated and purified amount of dust reaches 50000 during the use of the filter screen. The relationship between CCM and the total service life of the filter screen can be calculated according to the following equation (1):
CCM=(0.48×CG-28)×S×2.4×T (1)
wherein CG is the dust concentration value of the standard environment, S is the applicable area parameter of the purifier (e.g. the applicable area of a purifier is 50 square meters), and T is the total service life of the filter screen.
Wherein said calculating an accumulated net mass of said screen comprises: and calculating the accumulated purification amount of the filter screen based on the dust concentration value of the environment where the purifier is located, the applicable area parameter of the purifier and the running time of the filter screen.
Here, the cumulative purification amount of the filter screen may be calculated based on the following formula (2):
(0.48×CN-28)×S×2.4×t (2)
CN is a dust concentration value of the environment where the purifier is located, S is an application area parameter of the purifier, and t is the running time of the filter screen.
As an embodiment, in practical application, since the dust concentration value of the environment is constantly changing, the accumulated purification amount of the filter screen may be calculated according to a time period, taking the time period as 1 hour as an example, the average dust concentration value of the environment calculated at the 1 st hour is CN1, and t is 1 hour, so that the accumulated purification amount corresponding to the 1 st hour may be calculated, and by analogy, the accumulated purification amounts at the 2 nd hour, the 3 rd hour, and the like may be calculated, and the accumulated purification amounts corresponding to all hours before the current time are summed to obtain the accumulated purification amount corresponding to the current time.
As another embodiment, calculating the initial accumulated purification amount of the filter screen based on the dust concentration value of the environment where the purifier is located, the applicable area parameter of the purifier and the running time of the filter screen; and obtaining the purification efficiency of the filter screen, and correcting the initial accumulated purification amount based on the purification efficiency of the filter screen to obtain the accumulated purification amount of the filter screen. Wherein the initial accumulated purge amount may be calculated based on the foregoing formula (2).
In practical applications, when the filtering effect of the filter screen is reduced, the cumulative purifying amount of the filter screen is also reduced, for example, when a new filter screen is operated under the same environment, the cumulative purifying amount of the filter screen for one hour can be 10mg, but when the filtering effect of the filter screen is reduced to 50%, the cumulative purifying amount of the filter screen for one hour is necessarily less than 10mg, and may be 6 mg. Based on this, in the present embodiment, the obtained initial accumulated purification amount is adjusted based on the purification efficiency of the filter screen, for example, a value range (i.e. 0 to 1) of the purification efficiency is divided into N number of value ranges, N is an integer and N is greater than or equal to 2, where each of the value ranges corresponds to a coefficient, the coefficient is in a direct proportion relationship with a value of the purification efficiency, when the purification efficiency is high, the corresponding coefficient is also high, and when the purification efficiency is reduced, the corresponding coefficient is also low; the coefficient has a value ranging from 0 to 1; the cumulative purification amount of the screen may be obtained by multiplying the initial cumulative purification amount by a coefficient.
In this embodiment, the larger the purification percentage parameter is, the shorter the service life of the filter screen is; the smaller the percentage of clean parameter, the longer the service life of the screen. Specifically, the value range (i.e., 0 to 1) of the purification percentage parameter is divided into N number of value ranges, wherein N is an integer and N is greater than or equal to 2, and each of the value ranges corresponds to one service life; determining the numerical range to which the calculated purification percentage parameter belongs from the N numerical ranges as a target numerical range; and determining the service life corresponding to the target numerical range as the third service life of the filter screen.
In this embodiment, as an implementation manner, the service time parameter of the filter screen includes a percentage parameter of a service time of the filter screen; obtaining run time percentage parameters for the filter screen, including: acquiring the total purification amount of the filter screen, and calculating the total service life of the filter screen based on the total purification amount of the filter screen; determining an equivalent run time of the screen based on the total service life of the screen, the second dust concentration value, and the actual run time of the screen; determining a run time percentage parameter for the screen based on an equivalent run time of the screen and a total service life of the screen; accordingly, a first service life of the filter screen is determined based on the run time percentage parameter of the filter screen.
Wherein, the total purification capacity of filter screen specifically includes in the acquisition clarifier: and obtaining the CCM of the filter screen in the purifier, and taking the CCM as the total purification capacity of the filter screen. Here, CCM refers to the maximum dust holding capacity of the filter screen, and for example, if CCM is 50000, the filter screen is scrapped when the accumulated and purified amount of dust reaches 50000 during the use of the filter screen. The relationship between CCM and the total service life of the filter screen can be calculated by referring to the above equation (1).
Based on the formula (1), the total service life of the filter screen can be obtained to satisfy the following formula (3):
T=CCM/{(0.48×CG-28)×S×2.4} (3)
in this embodiment, the dust concentration value of the environment where the purifier is located is generally different from the concentration value of the standard environment, the operation time corresponding to the concentration value of the standard environment is referred to as an equivalent operation time, and the time corresponding to the dust concentration value of the environment where the purifier is located is referred to as an actual operation time. The determining an equivalent operation time of the filter screen based on a total service life of the filter screen, a dust concentration value of an environment where the purifier is located, and an actual operation time of the filter screen includes:
calculating an equivalent run time of the screen based on the following equation (4):
teq=(CN/CG)×t (4)
wherein, teqThe equivalent running time of the filter screen is CN, the dust concentration value of the environment where the purifier is located, CG is the dust concentration value of the standard environment, and t is the actual running time of the filter screen.
For example: the dust concentration value of the environment where the purifier is positioned is CN 50ug/m3The dust concentration value of the standard environment is CG 250ug/m3Assuming that the actual operation time of the filter screen is 1 hour, the equivalent operation time of the filter screen is teq12 minutes, (50/250) × 1 hour, i.e. 50ug/m by the user3Is used for one hour, the converted loss time (i.e. equivalent run time) of the filter screen is 12 minutes.
In this embodiment, the determining the percentage of operating time parameter of the filter screen based on the equivalent operating time of the filter screen and the total service life of the filter screen includes: calculating the ratio of the equivalent running time of the filter screen to the total service life of the filter screen as a running time percentage parameter of the filter screen; wherein the greater the run time percentage parameter, the shorter the service life of the screen; the smaller the run time percentage parameter, the longer the service life of the screen.
Specifically, since the equivalent operating time of the filter screen is less than or equal to the total service life of the filter screen, the value of x ranges from 0 to 1. Dividing the value range (namely 0 to 1) of the percentage parameter of the running time into N value ranges, wherein N is an integer and is more than or equal to 2, and each value range corresponds to one service life; determining the numerical range to which the calculated running time percentage parameter belongs from the N numerical ranges as a target numerical range; and determining the service life corresponding to the target numerical range, and taking the service life as the first service life of the filter screen.
As another embodiment, the service time parameter of the filter screen may further include a preset service time parameter of the filter screen, for example, the service time of the filter screen is preset to be 2 years, and the preset service time parameter of the filter screen is taken as the service life of the filter screen. Based on the above, the service time parameter of the filter screen can comprise the operation time percentage parameter of the filter screen and/or the preset service time parameter of the filter screen; when the service time parameter of the filter screen includes the operation time percentage parameter of the filter screen and the preset service time parameter of the filter screen, the service time parameter corresponding to the operation time percentage parameter and the preset service time parameter of the filter screen have a weighting coefficient.
In this embodiment, the operating power attenuation information of the fan may specifically be an operating power attenuation percentage parameter of the fan, and the operating power attenuation percentage parameter of the fan may be determined based on the operating power of the fan. Specifically, the operating power of the fan can be calculated by detecting the feedback current of the fan, and the operating power calculation formula of the fan is as follows: and P is the running power, U is the voltage on two sides of the fan, and I is the current passing through the fan. In practical application, the percentage parameter of the attenuation of the operating power of the fan is (rated operating power of the fan-current operating power of the fan)/rated operating power of the fan × 100%, where the percentage parameter of the current operating power of the fan/rated operating power of the fan × 100% is the percentage parameter of the current operating power of the fan. Here, the rated operation power of the fan refers to the operation power of the fan corresponding to a new filter screen installed in the purifier. For example, the operating power of the fan is 1000W when the new filter screen is used, and when the filter screen is dirty due to covering dust, the power of the fan is attenuated to 200W-300W, namely the operating power of the fan is attenuated by a percentage parameter of 70% -80%. Based on this, the operating power attenuation information of the fan (such as the operating power attenuation percentage parameter of the fan) can indicate the dust contamination degree of the filter screen in the purifier; wherein, the larger the dust dirt degree of the filter screen is, the larger the operation power attenuation percentage parameter is. Determining the service life of the filter screen further based on the dust pollution degree of the filter screen, wherein the service life of the filter screen is shorter if the dust pollution degree of the filter screen is larger; the less dust dirt the filter screen is dusty, the longer the service life of the filter screen.
Specifically, let x be the dust dirty degree (cumulative amount of dust on the filter screen/cumulative amount of dust on the filter screen) × 100%. Since the dust accumulation amount of the filter screen is less than or equal to the total dust accumulation amount of the filter screen, the value of x ranges from 0 to 1. Dividing the value range (namely 0 to 1) of the dust dirty gambling degree into N value ranges, wherein N is an integer and is more than or equal to 2, and each value range corresponds to one service life; determining a numerical range to which the calculated dust dirty degree belongs from the N numerical ranges as a target numerical range; and determining the service life corresponding to the target numerical range, and taking the service life as the service life of the filter screen.
In this embodiment, the steps 303 to 304 correspond to the steps 101 to 102 in the foregoing embodiment, respectively, and therefore, a person skilled in the art can understand the steps 303 to 304 with reference to the foregoing embodiment, and details are not repeated herein for brevity.
In this embodiment, the service life of the filter screen is determined based on the at least two service lives and the weight coefficient corresponding to each service life, and specifically, the service life of the filter screen is calculated by performing weighted summation on the at least two service lives and the corresponding weight coefficients. For example, taking two lifetimes as an example, the lifetime of the filter is equal to the first weight factor x the first lifetime + the second weight factor x the second lifetime.
Furthermore, due to the operation of the motor and the fan in the purifier, the air to be purified can enter the purifier from the air inlet and be released into the surrounding environment from the air outlet; the rotating speed of the fan is different due to the difference of the rotating speed of the motor, so that the flowing speed of the air in the purifier is different. Here, the wind speed parameter may specifically be a parameter capable of changing the air flow speed, such as the rotation speed of the motor/fan. In practical application, the larger the wind speed parameter is, namely the faster the air flow speed is, the larger the dust collection amount of the filter screen is, the longer the service life loss of the filter screen is correspondingly increased, and the longer the service life of the filter screen is correspondingly shortened; on the contrary, the smaller the wind speed parameter, i.e. the slower the air flow speed, the smaller the dust collection amount of the filter screen, the smaller the life loss of the filter screen, and the longer the service life of the filter screen.
Therefore, in the process of obtaining the service life of the filter screen, calculation can be carried out based on the pre-configured average wind speed parameter. After the wind speed parameter of the purifier is obtained, comparing the wind speed parameter with the average wind speed parameter, and if the wind speed parameter is higher than the average wind speed parameter, reducing the service life of the filter screen, namely the service life of the corrected filter screen is shorter than that of the filter screen; and if the wind speed parameter is higher than the average wind speed parameter, prolonging the service life of the filter screen, and if the corrected service life of the filter screen is longer than the service life of the filter screen. In practical application, an adjustment value of the service life of the filter screen can be configured in advance according to the difference value of the wind speed parameter and the average wind speed parameter, the difference value of the wind speed parameter and the average wind speed parameter is obtained through comparison, a corresponding adjustment value is determined, the service life of the filter screen is adjusted based on the adjustment value, and the service life of the corrected filter screen is obtained.
By adopting the technical scheme of the embodiment of the invention, in the process of calculating the service life of the filter screen based on at least two parameters, the weight coefficient corresponding to each parameter is adjusted by combining the state information of the dust sensor on the purifier and/or the dust concentration condition in the current environment, and the service life of the filter screen is finally obtained.
The embodiment of the invention also provides a device for determining the service life of the filter screen. Fig. 4 is a schematic structural diagram of a device for determining the service life of a filter screen according to an embodiment of the present invention; as shown in fig. 4, the apparatus includes: a first acquisition unit 43, a second acquisition unit 41, and an adjustment unit 42; wherein,
the first obtaining unit 43 is configured to obtain a dust concentration value in an environment where the purifier is located; the dust sensor is also used for obtaining the state information of the dust sensor arranged on the purifier;
the second obtaining unit 41 is configured to obtain operating power attenuation information of a fan disposed in the purifier;
the adjusting unit 42 is configured to adjust a weight coefficient corresponding to each of at least two parameters based on at least one of the state information obtained by the first obtaining unit 41, the dust concentration value, and the operating power attenuation information obtained by the second obtaining unit 41; the at least two parameters are used for calculating the service life of a filter screen of the purifier;
wherein the at least two parameters include at least: the service time parameter of the filter screen; adjusting a first weight coefficient corresponding to the service time parameter of the filter screen within a first value range higher than an average threshold value; the weight coefficients corresponding to other parameters except the service time parameter of the filter screen are adjusted within a second value range lower than the average threshold value; the average threshold is determined based on the number of the at least two parameters.
As an embodiment, the adjusting unit 42 is configured to, when the state information indicates that the detecting unit 43 is in a fault state, adjust the first weight coefficient to be a preset maximum value in the first value range, and adjust the weight coefficients corresponding to the other parameters to be a preset minimum value in the second value range.
As another embodiment, the adjusting unit 42 is configured to adjust a weighting factor corresponding to each of the at least two parameters based on the dust concentration value when the status information indicates that the detecting unit 43 is in a normal status; when the dust concentration value is increased, the first weight coefficient is reduced in the first value range, and the weight coefficients corresponding to the other parameters are increased in the second value range.
As yet another embodiment, the at least two parameters include: operating power decay information; the adjusting unit 42 is configured to adjust a weight coefficient corresponding to each of the at least two parameters based on the operating power attenuation information; when the operating power attenuation information shows that the attenuation degree of the fan is increased, the first weight coefficient is adjusted to be lower in the first value range, and the weight coefficient corresponding to the operating power attenuation information is adjusted to be higher in the second value range.
Fig. 5 is a schematic structural diagram of another component of the device for determining the service life of the filter screen according to the embodiment of the invention; as shown in fig. 5, the apparatus further comprises a determination unit 44; wherein,
the second obtaining unit 41 is configured to obtain at least two parameters;
the determining unit 44 is configured to determine the service life of the filter screen based on the at least two parameters obtained by the second obtaining unit 41 and the weight coefficient corresponding to each parameter adjusted by the adjusting unit 42;
the first obtaining unit 43 is further configured to obtain a wind speed parameter of the purifier;
the determining unit 44 is further configured to adjust the service life of the filter screen determined by the determining unit 44 based on the wind speed parameter obtained by the first obtaining unit 43, so as to obtain a corrected service life of the filter screen.
As another embodiment, the at least two parameters include: a percentage purge parameter;
the second obtaining unit 41 is further configured to obtain a purification efficiency of the filter screen, adjust an accumulated purification amount of the filter screen based on the purification efficiency of the filter screen, obtain a corrected accumulated purification amount, and determine the purification percentage parameter based on the corrected accumulated purification amount and a total purification amount of the filter screen.
It should be understood by those skilled in the art that, the functions of each processing unit in the device for determining the service life of a filter screen according to the embodiment of the present invention may be understood by referring to the description of the method for determining the service life of a filter screen, where each processing unit in the device for determining the service life of a filter screen according to the embodiment of the present invention may be implemented by an analog circuit that implements the functions described in the embodiment of the present invention, or implemented by running software that implements the functions described in the embodiment of the present invention on an intelligent terminal.
In the embodiment of the present invention, the first obtaining Unit 43, the second obtaining Unit 41, the adjusting Unit 42, and the determining Unit 44 in the device for determining the service life of the filter screen may be implemented by a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a Micro Control Unit (MCU) or a Programmable Gate Array (FPGA) in practical applications.
The embodiment of the invention also provides a purifier, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, and the purifier also comprises a filter screen and a dust sensor; specifically, the purifier may include a first dust sensor disposed at the purifier air outlet and a second dust sensor disposed at the purifier air inlet; the various components in the purifier may be coupled together by a bus system. It will be appreciated that a bus system is used to enable communications among the components. The bus system includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for the sake of clarity the various buses are labeled as bus systems.
It will be appreciated that the memory can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The described memory for embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.
The method disclosed by the embodiment of the invention can be applied to a processor or realized by the processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium having a memory and a processor reading the information in the memory and combining the hardware to perform the steps of the method.
Specifically, in this embodiment, the processor implements, when executing the program,: acquiring state information of a dust sensor arranged on the purifier; obtaining a dust concentration value in the environment where the purifier is located; obtaining running power attenuation information of a fan arranged in the purifier; adjusting a weight coefficient corresponding to each of at least two parameters based on at least one of the status information, the dust concentration value and the operating power attenuation information; the at least two parameters are used for calculating the service life of a filter screen of the purifier; wherein the at least two parameters include at least: the service time parameter of the filter screen; adjusting a first weight coefficient corresponding to the service time parameter of the filter screen within a first value range higher than an average threshold value; the weight coefficients corresponding to other parameters except the service time parameter of the filter screen are adjusted within a second value range lower than the average threshold value; the average threshold is determined based on the number of the at least two parameters.
As an embodiment, the processor, when executing the program, implements: and when the state information indicates that the dust sensor is in a fault state, adjusting the first weight coefficient to be a preset maximum value in the first value range, and adjusting the weight coefficients corresponding to the other parameters to be a preset minimum value in the second value range.
As an embodiment, the processor, when executing the program, implements: when the state information indicates that the dust sensor is in a normal state, adjusting a weight coefficient corresponding to each parameter of the at least two parameters based on the dust concentration value; when the dust concentration value is increased, the first weight coefficient is reduced in the first value range, and the weight coefficients corresponding to the other parameters are increased in the second value range.
As an embodiment, the at least two parameters include: operating power decay information; the processor implements, when executing the program: adjusting a weight coefficient corresponding to each of the at least two parameters based on the operating power attenuation information; when the operating power attenuation information shows that the attenuation degree of the fan is increased, the first weight coefficient is adjusted to be lower in the first value range, and the weight coefficient corresponding to the operating power attenuation information is adjusted to be higher in the second value range.
As an embodiment, the processor, when executing the program, implements: determining the service life of the filter screen based on the at least two parameters and the weight coefficient corresponding to each parameter; and obtaining a wind speed parameter of the purifier, and adjusting the service life of the filter screen based on the wind speed parameter to obtain the corrected service life of the filter screen.
As an embodiment, the at least two parameters include: a percentage purge parameter; the processor implements, when executing the program: obtaining the purification efficiency of the filter screen, adjusting the accumulated purification amount of the filter screen based on the purification efficiency of the filter screen to obtain a corrected accumulated purification amount, and determining the purification percentage parameter based on the corrected accumulated purification amount and the total purification amount of the filter screen.
The embodiment of the invention also provides a storage medium, on which computer instructions are stored, and the instructions are executed by a processor to implement the steps of the method for determining the service life of the filter screen according to the embodiment of the invention.
In particular, the instructions, when executed by the processor, implement: acquiring state information of a dust sensor arranged on the purifier; obtaining a dust concentration value in the environment where the purifier is located; obtaining running power attenuation information of a fan arranged in the purifier; adjusting a weight coefficient corresponding to each of at least two parameters based on at least one of the status information, the dust concentration value and the operating power attenuation information; the at least two parameters are used for calculating the service life of a filter screen of the purifier; wherein the at least two parameters include at least: the service time parameter of the filter screen; adjusting a first weight coefficient corresponding to the service time parameter of the filter screen within a first value range higher than an average threshold value; the weight coefficients corresponding to other parameters except the service time parameter of the filter screen are adjusted within a second value range lower than the average threshold value; the average threshold is determined based on the number of the at least two parameters.
As an embodiment, the instructions when executed by the processor implement: and when the state information indicates that the dust sensor is in a fault state, adjusting the first weight coefficient to be a preset maximum value in the first value range, and adjusting the weight coefficients corresponding to the other parameters to be a preset minimum value in the second value range.
As an embodiment, the instructions when executed by the processor implement: when the state information indicates that the dust sensor is in a normal state, adjusting a weight coefficient corresponding to each parameter of the at least two parameters based on the dust concentration value; when the dust concentration value is increased, the first weight coefficient is reduced in the first value range, and the weight coefficients corresponding to the other parameters are increased in the second value range.
As an embodiment, the at least two parameters include: operating power decay information; the instructions when executed by the processor implement: adjusting a weight coefficient corresponding to each of the at least two parameters based on the operating power attenuation information; when the operating power attenuation information shows that the attenuation degree of the fan is increased, the first weight coefficient is adjusted to be lower in the first value range, and the weight coefficient corresponding to the operating power attenuation information is adjusted to be higher in the second value range.
As an embodiment, determining the service life of the filter screen based on the at least two parameters and the weight coefficient corresponding to each parameter; and obtaining a wind speed parameter of the purifier, and adjusting the service life of the filter screen based on the wind speed parameter to obtain the corrected service life of the filter screen.
As an embodiment, the at least two parameters include: a percentage purge parameter; the instructions when executed by the processor implement: obtaining the purification efficiency of the filter screen, adjusting the accumulated purification amount of the filter screen based on the purification efficiency of the filter screen to obtain a corrected accumulated purification amount, and determining the purification percentage parameter based on the corrected accumulated purification amount and the total purification amount of the filter screen.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (14)
1. A method for determining the service life of a filter screen, the method comprising:
acquiring state information of a dust sensor arranged on the purifier;
obtaining a dust concentration value in the environment where the purifier is located;
obtaining running power attenuation information of a fan arranged in the purifier;
adjusting a weight coefficient corresponding to each of at least two parameters based on at least one of the status information, the dust concentration value and the operating power attenuation information; the at least two parameters are used for calculating the service life of a filter screen of the purifier;
wherein the at least two parameters include at least: the service time parameter of the filter screen; adjusting a first weight coefficient corresponding to the service time parameter of the filter screen within a first value range higher than an average threshold value; the weight coefficients corresponding to other parameters except the service time parameter of the filter screen are adjusted within a second value range lower than the average threshold value; the average threshold is determined based on the number of the at least two parameters.
2. The method of claim 1, wherein adjusting a weighting factor corresponding to each of at least two parameters based on at least one of the status information, the dust concentration value, and the operating power decay information comprises:
and when the state information indicates that the dust sensor is in a fault state, adjusting the first weight coefficient to be a preset maximum value in the first value range, and adjusting the weight coefficients corresponding to the other parameters to be a preset minimum value in the second value range.
3. The method of claim 1, wherein adjusting a weighting factor corresponding to each of at least two parameters based on at least one of the status information, the dust concentration value, and the operating power decay information comprises:
when the state information indicates that the dust sensor is in a normal state, adjusting a weight coefficient corresponding to each parameter of the at least two parameters based on the dust concentration value;
when the dust concentration value is increased, the first weight coefficient is reduced in the first value range, and the weight coefficients corresponding to the other parameters are increased in the second value range.
4. The method of claim 1, wherein the at least two parameters comprise: operating power decay information; the adjusting a weight coefficient corresponding to each of at least two parameters based on at least one of the status information, the dust concentration value, and the operating power attenuation information includes:
adjusting a weight coefficient corresponding to each of the at least two parameters based on the operating power attenuation information;
when the operating power attenuation information shows that the attenuation degree of the fan is increased, the first weight coefficient is adjusted to be lower in the first value range, and the weight coefficient corresponding to the operating power attenuation information is adjusted to be higher in the second value range.
5. The method according to any one of claims 1 to 4, further comprising: determining the service life of the filter screen based on the at least two parameters and the weight coefficient corresponding to each parameter;
and obtaining a wind speed parameter of the purifier, and adjusting the service life of the filter screen based on the wind speed parameter to obtain the corrected service life of the filter screen.
6. The method of claim 5, wherein the at least two parameters comprise: a percentage purge parameter; the purification percentage parameter is obtained from the total purification amount of the filter screen and the accumulated purification amount of the filter screen;
the method further comprises the following steps: obtaining the purification efficiency of the filter screen, adjusting the accumulated purification amount of the filter screen based on the purification efficiency of the filter screen to obtain a corrected accumulated purification amount, and determining the purification percentage parameter based on the corrected accumulated purification amount and the total purification amount of the filter screen.
7. An apparatus for determining the useful life of a filter screen, the apparatus comprising: the device comprises a first acquisition unit, a second acquisition unit and an adjustment unit; wherein,
the first acquisition unit is used for acquiring a dust concentration value in the environment where the purifier is located; the dust sensor is also used for obtaining the state information of the dust sensor arranged on the purifier;
the second acquisition unit is used for acquiring running power attenuation information of a fan arranged in the purifier;
the adjusting unit is used for adjusting a weight coefficient corresponding to each of at least two parameters based on at least one of the state information obtained by the first obtaining unit, the dust concentration value and the operating power attenuation information obtained by the second obtaining unit; the at least two parameters are used for calculating the service life of a filter screen of the purifier;
wherein the at least two parameters include at least: the service time parameter of the filter screen; adjusting a first weight coefficient corresponding to the service time parameter of the filter screen within a first value range higher than an average threshold value; the weight coefficients corresponding to other parameters except the service time parameter of the filter screen are adjusted within a second value range lower than the average threshold value; the average threshold is determined based on the number of the at least two parameters.
8. The apparatus according to claim 7, wherein the adjusting unit is configured to, when the state information indicates that the detecting unit is in a fault state, adjust the first weight coefficient to a preset maximum value in the first value range, and adjust the weight coefficients corresponding to the other parameters to a preset minimum value in the second value range.
9. The apparatus according to claim 7, wherein the adjusting unit is configured to adjust a weighting factor corresponding to each of the at least two parameters based on the dust concentration value when the status information indicates that the detecting unit is in a normal status; when the dust concentration value is increased, the first weight coefficient is reduced in the first value range, and the weight coefficients corresponding to the other parameters are increased in the second value range.
10. The apparatus of claim 7, wherein the at least two parameters comprise: operating power decay information; the adjusting unit is configured to adjust a weight coefficient corresponding to each of the at least two parameters based on the operating power attenuation information; when the operating power attenuation information shows that the attenuation degree of the fan is increased, the first weight coefficient is adjusted to be lower in the first value range, and the weight coefficient corresponding to the operating power attenuation information is adjusted to be higher in the second value range.
11. The apparatus according to any one of claims 7 to 10, characterized in that the apparatus further comprises a determination unit; wherein,
the second obtaining unit is used for obtaining at least two parameters;
the determining unit is configured to determine the service life of the filter screen based on the at least two parameters obtained by the second obtaining unit and the weight coefficient corresponding to each parameter adjusted by the adjusting unit;
the first acquisition unit is further used for acquiring a wind speed parameter of the purifier;
the determining unit is further configured to adjust the service life of the filter screen determined by the determining unit based on the wind speed parameter obtained by the first obtaining unit, so as to obtain a corrected service life of the filter screen.
12. The apparatus of claim 11, wherein the at least two parameters comprise: a percentage purge parameter;
the second acquisition unit is further used for acquiring the purification efficiency of the filter screen, adjusting the accumulated purification amount of the filter screen based on the purification efficiency of the filter screen to acquire a corrected accumulated purification amount, and determining the purification percentage parameter based on the corrected accumulated purification amount and the total purification amount of the filter screen.
13. A storage medium having stored thereon computer instructions, which when executed by a processor, carry out the steps of the method of determining the service life of a filter screen according to any one of claims 1 to 6.
14. A purifier comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of the method of determining the service life of a filter screen according to any one of claims 1 to 6.
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