CN116297091A - Filter screen service life detection method and device and air purification equipment - Google Patents
Filter screen service life detection method and device and air purification equipment Download PDFInfo
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Abstract
The present application relates to a lifetime detection method, apparatus, air cleaning device, computer-readable storage medium and computer program product for a filter screen. The method comprises the following steps: acquiring the size of an acting space of the filter screen; determining concentration parameters of air pollutants in the acting space in the use time period of the filter screen; and determining the service life of the filter screen according to the size and concentration parameters of the acting space. The method can be used for comprehensively determining the service life of the filter screen by combining the size of the space where the filter screen is actually used and the concentration parameter of the air pollutant in the space where the filter screen is actually used, so that the method is more in line with the actual service life of the filter screen, and the accuracy of service life detection of the filter screen is improved.
Description
Technical Field
The present application relates to the field of air purification technology, and in particular, to a method and apparatus for detecting the lifetime of a filter screen, an air purification device, a computer readable storage medium, and a computer program product.
Background
With the development of society, people's quality of life improves, and air purification equipment gradually gets into people's production life. The filter screen in the air purification equipment can filter the air, removes the pollutant particulate matters in the air, reaches air purification's effect, ensures people's breathing health.
The filter screen is used as a core component of the air purifying equipment and needs to be replaced according to the actual service life of the filter screen, otherwise, secondary pollution can be caused due to untimely replacement of the filter screen; or the filter screen is replaced too early, so that waste is caused. The traditional filter screen life detection method generally comprises the following steps: when the air purification equipment is started up for the first time, the service life time of the filter screen starts to be counted, and when the accumulated count reaches the set fixed time, the service life of the filter screen is considered to be ended.
However, since the air cleaning apparatus is exposed to a wide variety of environments, the above-described method of determining the replacement of the filter screen by a fixed time ignores the influence of the environment, and the determined life of the filter screen is not accurate. For example, when the filter screen is used in an environment with poor air quality, the filter screen actually has reached the service life but does not exceed the fixed time, and still can be judged as not reaching the service life; and in the environment with good air quality, when the fixed reality is achieved, the service life of the filter screen can be judged to be achieved too early. It can be seen that the conventional detection method cannot reflect the real life of the filter screen.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a life detection method, apparatus, air cleaning device, computer-readable storage medium, and computer program product for a filter screen, which are capable of accurately detecting the life of the filter screen of the air cleaning device.
In a first aspect, the present application provides a method for detecting a lifetime of a filter screen. The method comprises the following steps:
acquiring the size of an acting space of the filter screen;
determining concentration parameters of air pollutants in the action space in the use time period of the filter screen;
and determining the service life of the filter screen according to the size of the acting space and the concentration parameter.
In one embodiment, the filter screen usage period includes at least one filter sub-period, and determining the concentration parameter of the air pollutant in the acting space in the filter screen usage period includes:
determining concentration parameters of air pollutants in the action space in each filtering sub-time period;
the determining the service life of the filter screen according to the size of the acting space and the concentration parameter comprises the following steps:
and determining the service life of the filter screen according to the size and concentration parameters of the acting space corresponding to each filtering sub-time period.
In one embodiment, the number of the active spaces is more than two, and determining the service life of the filter screen according to the size and concentration parameters of the active space corresponding to each filtering sub-period includes:
And under different action spaces, determining the service life of the filter screen according to the size of each action space and the concentration parameter in each filtering sub-time under each action space.
In one embodiment, the size of the active space includes an area of the active space, and the determining the life of the filter screen according to the size of the active space and the concentration parameter includes:
determining the total mass of the filter screen accumulated purified air pollutants based on the area of the acting space and the concentration parameter;
and determining the service life of the filter screen according to the total mass of the filter screen accumulated purified air pollutants and the dust holding capacity threshold value of the filter screen.
In one embodiment, the concentration parameter includes a maximum concentration value and a concentration balance value in the active space, and the determining the total mass of the filter net accumulated purified air pollutant based on the area of the active space and the concentration parameter includes:
and determining the total mass of the filter screen accumulated purified air pollutants based on the area of the acting space, the maximum concentration value and the concentration balance value.
In one embodiment, the determining the total mass of the filter net accumulated purified air pollutants based on the area of the active space, the maximum concentration value and the concentration balance value includes:
Calculating a concentration difference between the maximum concentration value and the concentration balance value;
and determining the total mass of the filter screen accumulated purified air pollutants according to the product between the concentration difference value and the area of the acting space.
In one embodiment, the method for determining the concentration balance value includes:
acquiring a concentration detection value of the air pollutants in the current acting space in a preset time period;
and determining the concentration balance value according to the variation of the concentration detection value in the preset time period and the preset concentration variation.
In one embodiment, the filter screen usage period includes at least one filter sub-period, the number of the active spaces is more than two, and determining the total mass of the filter screen accumulated purified air pollutants based on the area of the active spaces and the concentration parameter includes:
under different action spaces, obtaining single-space purification amount according to the area of the current action space and concentration parameters in each filtering sub-time period;
and determining the total mass of the filter screen accumulated purified air pollutants according to the single-space purification amount.
In one embodiment, after the obtaining the size of the acting space of the filter screen, before determining the concentration parameter of the air pollutant in the acting space in the using period of the filter screen, the method further includes:
Detecting whether the filter screen is installed in place;
if yes, executing the operation of determining the concentration parameter of the air pollutant in the acting space in the use time period of the filter screen.
In a second aspect, the present application further provides a life detection device for a filter screen. The device comprises:
the parameter determining module is used for acquiring the size of the space where the air purifying equipment is positioned in the using time period of the filter screen of the air purifying equipment and determining the concentration parameter of the air pollutant in the space;
and the service life determining module is used for determining the service life of the filter screen according to the size and the concentration parameter.
In a third aspect, the present application also provides an air cleaning apparatus. The air cleaning device comprises a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to realize the following steps:
acquiring the size of an acting space of the filter screen;
determining concentration parameters of air pollutants in the action space in the use time period of the filter screen;
and determining the service life of the filter screen according to the size of the acting space and the concentration parameter.
In a fourth aspect, the present application also provides a computer-readable storage medium. The computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
Acquiring the size of an acting space of the filter screen;
determining concentration parameters of air pollutants in the action space in the use time period of the filter screen;
and determining the service life of the filter screen according to the size of the acting space and the concentration parameter.
In a fifth aspect, the present application also provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the steps of:
acquiring the size of an acting space of the filter screen;
determining concentration parameters of air pollutants in the action space in the use time period of the filter screen;
and determining the service life of the filter screen according to the size of the acting space and the concentration parameter.
The service life detection method, the device, the air purification equipment, the computer readable storage medium and the computer program product of the filter screen acquire the size of the acting space of the filter screen; determining concentration parameters of air pollutants in the acting space in the use time period of the filter screen; and determining the service life of the filter screen according to the size and concentration parameters of the acting space. The method combines the size of the acting space where the filter screen is actually used and the concentration parameter of the air pollutant in the space where the filter screen is actually used, comprehensively determines the service life of the filter screen, and is more in line with the actual service life of the filter screen, thereby improving the accuracy of service life detection of the filter screen.
Drawings
FIG. 1 is an application environment diagram of a method for detecting a lifetime of a filter screen in an embodiment;
FIG. 2 is an application environment diagram of a method for detecting a lifetime of a filter screen according to another embodiment;
FIG. 3 is a flow chart of a method for detecting a lifetime of a filter screen in an embodiment;
FIG. 4 is a flow chart of determining a lifetime of a filter screen according to size and concentration parameters of an active space in one embodiment;
FIG. 5 is a flow chart of a method for detecting a lifetime of a filter screen according to another embodiment;
FIG. 6 is a flow chart of a method for detecting a lifetime of a filter screen according to yet another embodiment;
FIG. 7 is a detailed flow chart of a method for detecting a lifetime of a filter screen in an embodiment;
FIG. 8 is a block diagram of a filter screen life detection device in one embodiment;
FIG. 9 is a block diagram of a filter screen life detection device in another embodiment;
fig. 10 is an internal structural view of the air cleaning apparatus of one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The service life detection method of the filter screen can be applied to air purification equipment. The air purifying device can be an air purifier, an air conditioner with an air purifying function and the like, and the air purifying device can purify air pollutants by using a filter screen. As shown in fig. 1, the air cleaning apparatus includes a control device 110 and a filter unit 120, a blower unit 130, a size collection device 140, an air contaminant detection device 150, etc. connected to the control device 110. The filter unit 120 includes a filter, a filter mounting assembly, a filter mounting in-place detecting unit, and the like, where the filter mounting in-place detecting unit is connected with the control device 110, and is configured to detect whether the filter is mounted in place, and output a corresponding signal of being mounted in place or a signal of not being mounted in place to the control device 110. The fan unit 130 includes a fan, a fan mounting assembly, a fan control unit, and the like, and the fan control unit is used to control the operation state of the fan. The size acquisition device 140 is configured to acquire and transmit a size parameter of the active space of the filter screen to the control device 110, and the size acquisition device 140 may include an area sensor or a distance sensor. When the size acquisition device adopts an area sensor, the area sensor directly detects the area of the acting space of the filter screen and transmits the area to the control device 110; when the size acquisition device comprises a distance sensor, parameters such as the length, the width, the height and the like of the acting space are detected by the distance sensor and transmitted to the control device 110, and the size of the acting space of the filter screen is determined by the control device 110. The air pollutant detecting device 150 is configured to detect a concentration detection value of the air pollutant concentration in the space, and output the concentration detection value to the control device 110. The air contaminant detection device 150 may include a dust sensor or a gas sensor, etc.
Specifically, the control device 110 obtains the size of the acting space of the filter screen; determining concentration parameters of air pollutants in the acting space in the use time period of the filter screen; and determining the service life of the filter screen according to the size and concentration parameters of the acting space.
In another embodiment, as shown in fig. 2, the control device 110 may also be connected to the terminal 160 or the server 170 through a network, where the terminal 160 or the server 170 obtains the size of the active space of the filter screen; determining concentration parameters of air pollutants in the acting space in the use time period of the filter screen; and determining the service life of the filter screen according to the size and concentration parameters of the acting space. The terminal 160 may be, but is not limited to, various smartphones, tablet computers, personal computers, notebook computers, internet of things devices, portable wearable devices, and the like. The server 170 may be implemented as a stand-alone server or as a server cluster composed of a plurality of servers.
In one embodiment, as shown in fig. 3, a method for detecting life of a filter screen is provided, and a control device of the method applied to an air cleaning apparatus is illustrated as an example, and includes the following steps 200, 400 and 600.
The space where the filter screen is required to filter air pollutants is the acting space of the filter screen, namely the space where the air purifying equipment is located. Specifically, the size of the active space may be the area of the active space. Correspondingly, when the control device receives the area detected by the size acquisition device, the area can be directly used as the area of the acting space. When the control device receives the length and width parameters detected by the size acquisition device, the area of the acting space can be determined according to the length and width parameters.
The size of the active space can also be the volume of the active space, and the control device determines the volume of the active space according to the area of the active space and the preset height (such as the height specified in national standards), or determines the volume of the active space according to the area of the active space and the height parameter detected by the size acquisition device.
The control device can obtain the size of the acting space of the filter screen when the air purification device is started every time. The control device can also comprise a positioning module, when the positioning module detects that the position of the air purifying device is moved, the size of the acting space of the filter screen is obtained again, the size is stored, and if the position of the air purifying device is not moved next time, the last stored size is the size of the current space, and the size does not need to be obtained again.
The filter screen use time period comprises a time period of normal operation of the air purification equipment, and at this stage, the filter screen is normally used for filtering large-particle pollutants such as dust, pollen, hair and the like, fine-particle matters PM2.5 and the like. The air pollutant detecting device can detect the concentration of the air pollutant in the space where the air purifying equipment is located at regular time to obtain a concentration detection value. The control device determines a concentration parameter of the air pollutant according to the concentration detection value.
Specifically, the total mass of the filter screen accumulated purified air pollutants can be determined based on the volume and concentration parameters of the acting space; and determining the service life of the filter screen according to the total mass of the filter screen accumulated purified air pollutants and the dust holding capacity threshold value of the filter screen.
Because the control device has a preset height, as shown in fig. 4, step 600 may further include: step 610 and step 620.
The dust holding quantity threshold is the maximum mass of the filter screen which can purify the air pollutants in an accumulated way, namely the service life upper limit of the filter screen, and if the total mass of the filter screen which can purify the air pollutants in an accumulated way reaches the dust holding quantity threshold, the filter screen can still be used continuously, so that the hidden danger of secondary pollution to the air can exist. The dust holding capacity threshold may be pre-stored in the control means.
Determining the service life of the filter screen can be to judge whether the total mass of the accumulated purified air pollutants of the filter screen reaches a dust holding capacity threshold value, and if so, considering that the filter screen has reached the service life upper limit, and the filter screen is in a state of needing replacement. If the total mass of the accumulated purified air pollutants of the filter screen does not reach the dust holding capacity threshold, the service life of the filter screen is considered to be not reached, and the filter screen can be used continuously.
Further, if the filter screen has reached the life upper limit, the control module can also control the prompt module to send prompt information, and the prompt information is used for prompting that the filter screen is in a state needing to be replaced so as to remind a user to replace in time.
If the current total mass of the accumulated purified air pollutants of the filter screen does not reach the dust holding capacity threshold, the dust holding allowance can be calculated according to the dust holding capacity threshold of the filter screen and the total mass of the accumulated purified air pollutants. And acquiring the operation gear of the fan, and calculating the residual service life of the filter screen when the air purification equipment continues to operate in the current filtering state based on the dust holding allowance of the filter screen and the operation gear of the fan, wherein the residual service life can be in units of hours or minutes. And when the continuous operation time of the air purifying equipment exceeds the residual service life, determining that the filter screen reaches the service life upper limit. Therefore, the service life of the filter screen can be more accurately determined, and a user can be more timely reminded of replacement.
According to the service life detection method of the filter screen, the size of the acting space of the filter screen is obtained; determining concentration parameters of air pollutants in the acting space in the use time period of the filter screen; and determining the service life of the filter screen according to the size and concentration parameters of the acting space. The method combines the area of the space where the air purifying equipment is actually located and the concentration parameter of the air pollutant in the space where the air purifying equipment is actually located, comprehensively determines the service life of the filter screen, and is more in line with the actual service life of the filter screen, thereby improving the accuracy of service life detection of the filter screen. Furthermore, on the premise of not wasting the filter screen, the filter screen can be replaced in time, so that the air in the space can be kept with better quality, and the performance of the air purifying equipment is improved.
In one embodiment, the concentration parameter includes a maximum concentration value and a concentration balance value within the interaction space. Step 610 includes: and determining the total mass of the accumulated purified air pollutants of the filter screen based on the area of the acting space, the maximum concentration value and the concentration balance value.
The concentration balance value is the concentration value when the concentration detection value of the air pollutants in the space reaches balance under the action of the filter screen in the use time period of the filter screen. Since the indoor and outdoor air is not absolutely isolated, the concentration detection value will not drop or rise again after the air purification device is purified in the working space.
The control device can determine the treatment degree of the filter screen for filtering the air pollutants in the acting space according to the maximum concentration value and the concentration balance value, and the total mass of the filter screen for accumulating and purifying the air pollutants can be obtained by combining the area of the acting space.
Specifically, a concentration difference between the maximum concentration value and the concentration balance value may be calculated; and determining the total mass of the accumulated purified air pollutants of the filter screen according to the product of the concentration difference value and the area of the acting space.
The control device can be pre-stored with the corresponding relation among the three different concentration differences, the area size and the purifying amount of the filter screen, or the conversion method among the three. After the concentration difference value and the area of the acting space are determined, the purifying amount of the filter screen can be obtained according to the corresponding relation or conversion method among the concentration difference value, the area of the acting space and the area of the acting space, namely the total mass of the filter screen for accumulating and purifying air pollutants.
The control device can also determine the total mass of the filter screen accumulated purified air pollutants by adopting the following formula:
the filter net accumulates the total mass of purified air pollutants = (maximum concentration value-concentration balance value) ×area×preset height×coefficient.
The coefficients may be selected in combination with the actual situation, for example, 1. The maximum concentration value and the concentration balance value are determined according to the concentration detection value of the air pollutants in the use time period of the filter screen. The maximum concentration value is the maximum value of concentration detection values in the using time period of the filter screen. Illustratively, the method of determining the concentration balance includes: acquiring a concentration detection value of the air pollutants in the action space in a preset time period; and determining a concentration balance value according to the variation of the concentration detection value in the preset time period and the preset concentration variation.
The duration of the preset time period and the value of the preset concentration variation may be determined empirically or in combination with experimental data. When the concentration detection value of the air pollutant is lower than the preset concentration change amount in the preset time period, the concentration of the current air pollutant is considered to reach the concentration balance value. The manner how the concentration balance value is determined from the concentration detection values in the preset time period is not necessarily limited, for example, a manner of taking an average value of the plurality of concentration detection values in the preset time period as the concentration balance value, or taking a median value of the plurality of concentration detection values in the preset time period as the concentration balance value, or the like.
In one embodiment, the filter screen usage period includes at least one filter sub-period. And when the filtering sub-time period is the duration from the beginning of the filtering to the ending of the filtering when the filter screen is in normal filtering. When the duration of the filtering sub-period is determined, the duration can be determined according to the time of each normal operation of the air purifying device, namely the time between the starting up and the shutting down of the air purifying device when the air purifying device is in normal operation. If the air purifying device is powered on and then powered off after the self-detection finds abnormality, the running time is not counted as the filtering sub-time of the filter screen.
In this embodiment, step 400 includes: during each filtration sub-period, a concentration parameter of the air contaminant in the active space is determined. Step 600 includes: and determining the service life of the filter screen according to the size and concentration parameters of the acting space corresponding to each filtering sub-time period.
When the air purification equipment is started and operated every time, the concentration parameter of the air pollutant in the acting space of the filter screen needs to be detected again so as to determine the pollution amount of the filter screen which needs to be filtered every time. Meanwhile, when the service life of the filter screen is determined, single purification quality of each filter sub-period is obtained according to the size and concentration parameters of the corresponding acting space in each filter sub-period of the filter screen; then, overlapping the single purification quality to obtain the total quality of the purified air pollutants in the use time period of the filter screen; and further determining the service life of the filter screen according to the dust holding capacity threshold value of the filter screen.
It will be appreciated that the air quality of the space in which the air cleaning device is located is not constant each time it is turned on. Therefore, when the filter screen effectively filters each time, concentration parameters of air pollutants are obtained again, and the single purification quality of air purification is calculated at the time, so that the actual use state of the filter screen is more met, and the service life of the finally determined filter screen is more accurate.
In one embodiment, the number of the acting spaces is more than two, and determining the service life of the filter screen according to the size and concentration parameters of the acting space corresponding to each filtering sub-time period includes: and under different action spaces, determining the service life of the filter screen according to the size of each action space and the concentration parameter in each filtering sub-time under each action space.
As the air purifier is in use, movement may occur. For example, from room to room, and there may be some differences in size between rooms. Therefore, in determining the life of the filter screen, dimensional changes in different spaces of action need to be taken into account.
In this embodiment, in each filtering sub-period, the current size of the acting space and the current concentration parameter of the space are combined, the single purification quality of the air purification at the present time is calculated, and then the single purification quality is overlapped to obtain the total quality of the accumulated purified air pollutants of the filter screen, and the service life of the filter screen is redetermined based on the total quality.
The current calculation data are real environment parameters when the filter screen effectively filters, so that the service life of the filter screen can be ensured to be more objective and reliable.
In one embodiment, the filter screen usage period includes at least one filter sub-period, the number of active spaces is more than two, the determining the filter screen cumulative total mass of purified air pollutants based on the area and concentration parameters of the active spaces includes: under different action spaces, obtaining single-space purification amount according to the area of the current action space and concentration parameters in each filtering sub-time period; and determining the total mass of the filter screen accumulated purified air pollutants according to the single-space purification amount.
Specifically, in calculating the single-space purifying amount in each filtering sub-period of the filter screen, the following formula may be adopted:
single space purification amount of filter sub-period= (maximum concentration value-concentration balance value) ×area×preset height×coefficient. Taking a coefficient of 1 as an example, the formula may be expressed in letters: y is Y i ＝(X max -X ave )×S i X H, wherein Y i A single purification quality representation, X, representing the current filtering sub-period max Representing the maximum concentration value, X, of the current filtering sub-period ave Representing the concentration balance value of the current filtering sub-period, S i The area of the action space corresponding to the current filtering sub-time period is represented, and H represents the preset height.
In calculating the total mass of the filter screen for accumulated purge air contaminants, the following formula may be used:
Y＝Y 1 +Y 2 +…+Y i ＝[X(1) max -X(1) ave ]×S1×H+[X(2) max -X(2) ave ]×S2×H+…
[X(i) max -X(i) ave ]X Si x H. Wherein Y represents the total mass of the filter screen accumulated purified air pollutants, Y 1 -Y i Representing the single spatial purge for all filter sub-periods.
Thus, the total mass of the filter screen accumulated purified air pollutants is obtained, and the service life of the filter screen can be determined more accurately.
In one embodiment, as shown in fig. 5, after step 200 and before step 400, the method for detecting the lifetime of the filter screen further includes step 300: detecting whether the filter screen is installed in place. If the filter screen is in place, step 400 is performed.
It will be appreciated that if the filter screen is not in place, the fan will not perform an effective filtration even if the air cleaning device is started up and the fan is operating properly. Therefore, after the air purification device is turned on, it is required to determine whether a mounting signal output by the filter screen mounting in-place detection unit is received, and when the mounting signal is received, it is determined that the filter screen can be normally used, step 400 is executed again at this time, and the service life of the filter screen is detected, so that the detection result is more accurate.
Further, after step 300, if it is detected that the filter screen is not installed in place, a first fault notification message is sent. The first fault prompting information is used for prompting that the filter screen is not installed in place and is in an unsuitable use state so as to prompt a user to adjust in time.
In one embodiment, after step 200 and before step 400, the method for detecting the lifetime of the filter screen may further include: and detecting whether the fan normally operates. If the fan is operating normally, step 400 is executed, and if the fan is not operating normally, a second fault prompt message is sent. The second fault prompting information is used for prompting abnormal operation of the fan and is in an unsuitable use state so as to prompt a user to adjust the fan in time.
In one embodiment, after step 200, before step 400, the method for detecting the lifetime of a filter screen may further include the steps of: and detecting whether the air pollutant detecting device works normally. If the air contaminant detection device is functioning properly, step 400 is performed. If the air pollutant detection device does not work normally, a third fault prompt message is sent. The third fault prompting information is used for prompting abnormality of the air pollutant detecting device so as to prompt a user to maintain in time.
It will be appreciated that after step 200, before step 400, the steps of detecting whether the fan is operating normally and detecting whether the air contaminant detection device is operating normally may be included simultaneously, and the sequence between the three steps is not limited. Through ensuring that the components influencing the service life of the filter screen are all in normal operation, the detection result can be more accurate.
For a better understanding of the above embodiments, the following detailed explanation is made in connection with a specific embodiment. In one embodiment, as shown in fig. 6, the area of the active space where the user is currently located is first obtained; secondly, detecting whether components affecting the service life of the filter screen work normally or not; determining the maximum concentration value and the concentration balance value of the air pollutants in the space in the action time period of the filter screen, and calculating to obtain the total mass Y of the accumulated purified air pollutants of the filter screen by combining the area; finally, comparing whether the total mass Y of the accumulated purified air pollutants of the filter screen is greater than or equal to the dust holding capacity threshold Y of the filter screen max If the service life of the filter is greater than or equal to the service life upper limit, the filter is determined to have reached the service life upper limit, and a prompt message is sent to prompt a user to replace the filter screen in time. Therefore, parameters for determining the calculated service life according to the actual use environment of the filter screen are achieved, and the objective and accurate service life of the filter screen is obtained.
Specifically, referring to fig. 7, the method for detecting the lifetime of the filter screen includes the following steps:
(1) After the air purification equipment is started, the area of the acting space is obtained.
(2) Detecting whether the fan is normally started to operate, and if so, sending out corresponding fault prompt information; if normal, executing the step (3).
(3) Detecting whether the filter screen is installed in place, and if not, sending out corresponding fault prompt information; and (4) executing the step (4) if the installation is in place.
(4) Detecting whether a dust sensor for detecting the concentration of air pollutants works normally or not, and if so, sending out corresponding fault prompt information; if normal, executing step (5).
(5) And determining a concentration maximum value and a concentration balance value of the concentration of the air pollutants (taking particulate matters as examples) in the process from the time of starting to the time of shutting down (the effective filtering time period of the filter screen), and storing.
(6) Calculating the timeSingle space purifying amount Y in the sub-effective filtering period i 。
(7) To Y i And performing accumulation calculation to obtain the total mass Y of the accumulated purified air pollutants.
(8) Comparing the total mass Y of the accumulated purified air pollutants with the dust holding capacity threshold Y of the filter max If the dust holding capacity is greater than or equal to the dust holding capacity threshold Y of the filter max Indicating that the service life of the filter reaches the upper limit of service life, and sending out prompt information that the filter screen needs to be replaced.
If the total mass Y of the accumulated purified air pollutants is smaller than the dust holding quantity threshold Y max The filter screen has the advantages that the service life of the filter screen does not reach the upper limit, the filter screen can be used continuously, and the total mass Y of accumulated purified air pollutants is saved.
According to the life detection method of the filter screen, under the condition that no additional hardware is added, the environment factors and the use area of a room are considered, the service life of the filter screen can be accurately judged, and the accuracy of life detection of the filter screen is improved. Furthermore, the filter screen replacement can be timely prompted to the user, and on the premise of not wasting the filter screen, the filter screen can be timely replaced, and the use experience of the air purifying device is further improved.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the application also provides a service life detection device of the filter screen for realizing the service life detection method of the filter screen. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the lifetime detection device of one or more filter screens provided below may be referred to the limitation of the lifetime detection method of the filter screen hereinabove, and will not be repeated here.
In one embodiment, as shown in fig. 8, there is provided a life detection device of a filter screen, including: a size acquisition module 700, a parameter determination module 710, and a lifetime determination module 720, wherein:
the size obtaining module 700 is configured to obtain a size of an active space of the filter screen.
The parameter determining module 710 is configured to determine a concentration parameter of the air contaminant in the active space during a filter usage period.
The life determining module 720 is configured to determine the life of the filter screen according to the size and concentration parameters of the active space.
In one embodiment, the parameter determination module 710 is further configured to determine a concentration parameter of the air contaminant in the active space during each filtration sub-period.
The life determining module 720 is further configured to determine the life of the filter screen according to the concentration parameter and the size of the acting space corresponding to each filtering sub-period.
In one embodiment, the life determining module 720 is further configured to determine the life of the filter screen under different working spaces according to the size of each working space and the concentration parameter in each filtering sub-time under each working space.
In one embodiment, life determination module 720 is further configured to determine a total mass of filter screen cumulative purge air pollutants based on the area and concentration parameters of the active space; and determining the service life of the filter screen according to the total mass of the filter screen accumulated purified air pollutants and the dust holding capacity threshold value of the filter screen.
In one embodiment, the lifetime determination module 720 is further configured to determine a total mass of filter mesh accumulated purge air pollutants based on the area of the active space, the maximum concentration value, and the concentration balance value.
In one embodiment, the lifetime determination module 720 is further configured to calculate a concentration difference between the maximum concentration value and the concentration balance value; and determining the total mass of the accumulated purified air pollutants of the filter screen according to the product of the concentration difference value and the area of the acting space.
In one embodiment, the life detection device of the filter screen further comprises a concentration balance value determination module, wherein the concentration balance value determination module is used for obtaining a concentration detection value of the air pollutant in the current acting space in a preset time period; and determining a concentration balance value according to the variation of the concentration detection value in the preset time period and the preset concentration variation.
In one embodiment, the lifetime determining module 720 is further configured to obtain, in different working spaces, a single-space purifying amount according to the area of the current working space and the concentration parameter in each filtering sub-time period; and determining the total mass of the filter screen accumulated purified air pollutants according to the single-space purification amount.
In one embodiment, as shown in fig. 9, the life detection device of the filter screen further includes a state detection module 730, where the state detection module 730 is configured to detect whether the filter screen is installed in place, and if so, determine, by the parameter determination module 710, a concentration parameter of the air contaminant in the working space during a usage period of the filter screen.
The above-mentioned each module in the life detection device of the filter screen can be realized completely or partially by software, hardware and a combination thereof. The modules can be embedded in the processor in the air purifying device or independent of the processor in the air purifying device in a hardware mode, and can also be stored in a memory in the air purifying device in a software mode, so that the processor can call and execute the operations corresponding to the modules.
In one embodiment, an air cleaning apparatus is provided, and an internal structural diagram of the air cleaning apparatus may be as shown in fig. 10. The air cleaning device includes a processor, a memory, an Input/Output interface (I/O) and a communication interface. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface is connected to the system bus through the input/output interface. Wherein the processor of the air cleaning device is configured to provide computing and control capabilities. The memory of the air cleaning device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the air purification device is used for storing data such as the size, concentration parameters and the like of the working space. The input/output interface of the air cleaning device is used for exchanging information between the processor and the external device. The communication interface of the air cleaning device is used for communicating with an external terminal through network connection. The computer program, when executed by a processor, implements a method for detecting the lifetime of a filter screen.
It will be appreciated by those skilled in the art that the structure shown in fig. 10 is merely a block diagram of a portion of the structure associated with the present application and is not limiting of the air cleaning apparatus to which the present application is applied, and that a particular air cleaning apparatus may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, an air cleaning apparatus is provided comprising a memory and a processor, the memory having stored therein a computer program which when executed by the processor performs the steps of:
acquiring the size of an acting space of the filter screen;
determining concentration parameters of air pollutants in the acting space in the use time period of the filter screen;
and determining the service life of the filter screen according to the size and concentration parameters of the acting space.
In one embodiment, the processor when executing the computer program further performs the steps of: determining concentration parameters of air pollutants in the action space in each filtering sub-time period;
the processor when executing the computer program also implements the steps of: and determining the service life of the filter screen according to the concentration parameter corresponding to each filtering sub-time period and the size of the acting space.
In one embodiment, the processor when executing the computer program further performs the steps of: and under different action spaces, determining the service life of the filter screen according to the size of each action space and the concentration parameter in each filtering sub-time under each action space.
In one embodiment, the processor when executing the computer program further performs the steps of: determining the total mass of the accumulated purified air pollutants of the filter screen based on the area and concentration parameters of the acting space; and determining the service life of the filter screen according to the total mass of the filter screen accumulated purified air pollutants and the dust holding capacity threshold value of the filter screen.
In one embodiment, the processor when executing the computer program further performs the steps of: and determining the total mass of the accumulated purified air pollutants of the filter screen based on the area of the acting space, the maximum concentration value and the concentration balance value.
In one embodiment, the processor when executing the computer program further performs the steps of: calculating a concentration difference between the maximum concentration value and the concentration balance value; and determining the total mass of the accumulated purified air pollutants of the filter screen according to the product of the concentration difference value and the area of the acting space.
In one embodiment, the processor when executing the computer program further performs the steps of: acquiring a concentration detection value of the air pollutants in the current acting space in a preset time period; and determining a concentration balance value according to the variation of the concentration detection value in the preset time period and the preset concentration variation.
In one embodiment, the processor when executing the computer program further performs the steps of: under different action spaces, obtaining single-space purification amount according to the area of the current action space and concentration parameters in each filtering sub-time period; and determining the total mass of the filter screen accumulated purified air pollutants according to the single-space purification amount.
In one embodiment, the processor when executing the computer program further performs the steps of: detecting whether the filter screen is installed in place; if yes, executing in the filter screen using time period, and determining the concentration parameter of the air pollutant in the acting space.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, carries out the steps of the method embodiments described above.
In an embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the method embodiments described above.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.
Claims (12)
1. A method for detecting the life of a filter screen, the method comprising:
acquiring the size of an acting space of the filter screen;
determining concentration parameters of air pollutants in the action space in the use time period of the filter screen;
and determining the service life of the filter screen according to the size of the acting space and the concentration parameter.
2. The method of claim 1, wherein the filter screen usage period comprises at least one filter sub-period, and wherein determining the concentration parameter of the air contaminant in the active space during the filter screen usage period comprises:
Determining concentration parameters of air pollutants in the action space in each filtering sub-time period;
the determining the service life of the filter screen according to the size of the acting space and the concentration parameter comprises the following steps:
and determining the service life of the filter screen according to the concentration parameter corresponding to each filtering sub-time period and the size of the acting space.
3. The method of claim 2, wherein the number of the active spaces is more than two, and the determining the life of the filter screen according to the size and concentration parameters of the active space corresponding to each filtering sub-period includes:
and under different action spaces, determining the service life of the filter screen according to the size of each action space and the concentration parameter in each filtering sub-time under each action space.
4. The method of claim 1, wherein the size of the active space comprises an area of the active space, and wherein determining the lifetime of the filter screen based on the size of the active space and the concentration parameter comprises:
determining the total mass of the filter screen accumulated purified air pollutants based on the area of the acting space and the concentration parameter;
And determining the service life of the filter screen according to the total mass of the filter screen accumulated purified air pollutants and the dust holding capacity threshold value of the filter screen.
5. The method of claim 4, wherein the concentration parameter comprises a maximum concentration value and a concentration balance value within the active space, wherein determining the total mass of filter screen accumulated purge air contaminants based on the area of the active space and the concentration parameter comprises:
and determining the total mass of the filter screen accumulated purified air pollutants based on the area of the acting space, the maximum concentration value and the concentration balance value.
6. The method of claim 5, wherein said determining the total mass of said filter screen accumulated purge air contaminants based on the area of said active space, said maximum concentration value, and said concentration balance value comprises:
calculating a concentration difference between the maximum concentration value and the concentration balance value;
and determining the total mass of the filter screen accumulated purified air pollutants according to the product between the concentration difference value and the area of the acting space.
7. The method of claim 5, wherein the method of determining the concentration balance comprises:
Acquiring a concentration detection value of the air pollutants in the current acting space in a preset time period;
and determining the concentration balance value according to the variation of the concentration detection value in the preset time period and the preset concentration variation.
8. The method of claim 4, wherein the filter screen usage period comprises at least one filter sub-period, the number of active spaces is more than two, and determining the total mass of filter screen accumulated purge air pollutants based on the area of active space and the concentration parameter comprises:
under different action spaces, obtaining single-space purification amount according to the area of the current action space and concentration parameters in each filtering sub-time period;
and determining the total mass of the filter screen accumulated purified air pollutants according to the single-space purification amount.
9. The method of claim 1, wherein after the obtaining the size of the active space of the filter screen, before the determining the concentration parameter of the air pollutant in the active space in the filter screen usage period, further comprises:
detecting whether the filter screen is installed in place;
If yes, executing the operation of determining the concentration parameter of the air pollutant in the acting space in the use time period of the filter screen.
10. A life detection device for a filter screen, the device comprising:
the size acquisition module is used for acquiring the size of the acting space of the filter screen;
the parameter determining module is used for determining concentration parameters of air pollutants in the action space in the use time period of the filter screen;
and the service life determining module is used for determining the service life of the filter screen according to the size of the acting space and the concentration parameter.
11. An air cleaning device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any one of claims 1 to 9 when the computer program is executed.
12. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any one of claims 1 to 9.
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| CN202310183947.XA CN116297091A (en) | 2023-02-27 | 2023-02-27 | Filter screen service life detection method and device and air purification equipment |
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