CN110595934A - Method and device for estimating residual life of filter screen and air purification equipment - Google Patents
Method and device for estimating residual life of filter screen and air purification equipment Download PDFInfo
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- CN110595934A CN110595934A CN201910882185.6A CN201910882185A CN110595934A CN 110595934 A CN110595934 A CN 110595934A CN 201910882185 A CN201910882185 A CN 201910882185A CN 110595934 A CN110595934 A CN 110595934A
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- 238000004887 air purification Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000000428 dust Substances 0.000 claims abstract description 171
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 134
- 231100000719 pollutant Toxicity 0.000 claims abstract description 134
- 238000010521 absorption reaction Methods 0.000 claims abstract description 67
- 239000002245 particle Substances 0.000 claims abstract description 22
- 238000000746 purification Methods 0.000 claims abstract description 17
- 230000007613 environmental effect Effects 0.000 claims abstract description 12
- 239000000356 contaminant Substances 0.000 claims description 52
- 238000004364 calculation method Methods 0.000 claims description 24
- 230000035515 penetration Effects 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 12
- 238000010926 purge Methods 0.000 claims description 6
- 230000001186 cumulative effect Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/084—Testing filters
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Abstract
The invention discloses a method and a device for estimating the residual life of a filter screen and air purification equipment. Wherein, the method comprises the following steps: acquiring the current dust concentration of a filter screen in target equipment, wherein the current dust concentration is obtained by collecting the environmental dust concentration of the filter screen within a preset time period; calculating the initial mass of the target equipment for absorbing the pollutants based on the current dust concentration; determining the theoretical absorption amount of the target equipment to the pollutants; calculating the actual mass of the target equipment for absorbing the pollutants based on the initial mass of the target equipment for absorbing the pollutants and the theoretical absorption amount of the pollutants; and estimating the residual service life of the filter screen according to the actual mass of the target equipment for absorbing the pollutants and the accumulated purification amount of the filter screen on the particle pollutants. The invention solves the technical problems that the residual service life of the filter screen of the air purifier is estimated by using the starting time length in the related technology, and the estimation result is inaccurate.
Description
Technical Field
The invention relates to the technical field of equipment control, in particular to a method and a device for estimating the residual life of a filter screen and air purification equipment.
Background
In the related art, the currently used air purifier adopts a filter screen to filter impurities in air, so that the service life of the filter screen directly influences the normal use of the air purifier; the service life of the filter screen is usually estimated by adopting the starting time length at present, the residual service life of the filter screen is estimated only according to the starting time length of the air purifier by adopting the calculation method, the parameters such as the type, the quality and the like of pollutants filtered by the filter screen are not considered, the estimation result is inaccurate, the service life attenuation of the filter screen is serious, the actual condition is seriously inconsistent, and the waste of the filter screen is caused.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides a method and a device for estimating the residual service life of a filter screen and air purification equipment, which are used for at least solving the technical problem that the estimation result is inaccurate when the starting-up time is used for estimating the residual service life of the filter screen of an air purifier in the related technology.
According to an aspect of an embodiment of the present invention, a method for estimating a remaining life of a filter screen is provided, including: acquiring the current dust concentration of a filter screen in target equipment, wherein the current dust concentration is obtained by collecting the environmental dust concentration of the filter screen within a preset time period; calculating an initial mass of the target device to absorb the contaminant based on the current dust concentration; determining a theoretical absorption amount of the contaminant by the target device; calculating an actual mass of the target device absorbing the contaminant based on the initial mass of the target device absorbing the contaminant and the theoretical amount of absorption of the contaminant; and estimating the residual service life of the filter screen according to the actual mass of the pollutant absorbed by the target equipment and the accumulated purification amount of the particle pollutants by the filter screen.
Optionally, the step of obtaining the current dust concentration of the filter screen in the target device includes: controlling a preset dust sensing module to acquire the environment dust amount and the environment dust concentration of a filter screen in the target equipment to obtain acquired data; sending a data calling signal to the dust sensing module, wherein the data calling signal is used for acquiring data collected by the dust sensing module within a preset time period; receiving collected data transmitted by the dust sensing module, obtaining dust concentration data of the filter screen in the preset time period, and determining all dust concentration data of the filter screen before the preset time period; and calculating the current dust concentration of the filter screen based on the dust concentration data of the filter screen in the preset time period and all the dust concentration data before the preset time period.
Optionally, the step of calculating an initial mass of the target device to absorb the contaminant based on the current dust concentration comprises: determining a target gear of the target equipment in the preset time period and a target air volume corresponding to the target gear; calculating the initial mass of the target device to absorb the pollutants based on the target air volume and the current dust concentration.
Optionally, the step of determining a theoretical uptake of the contaminant by the target device comprises: determining a penetration coefficient of a building in which the target device is located for particulate pollutants and a number of air changes of the building; acquiring the concentration of outdoor pollutants in the area where the target equipment is located and the natural settling rate of particle pollutants in the current environment; calculating a theoretical uptake of the contaminant by the target device based on the penetration coefficient, the number of air exchanges, the concentration of the outdoor contaminant, and the natural settling rate of the particulate contaminant.
Optionally, the step of calculating the actual mass of the target device absorbing the contaminant comprises: determining a first scaling factor corresponding to the initial mass and a second scaling factor corresponding to the theoretical absorption amount; calculating an actual mass of the target device to absorb the contaminant based on the initial mass and the first scaling factor, and the theoretical absorption amount and the second scaling factor.
Optionally, the step of predicting the remaining useful life of the filter screen comprises: calculating an initial difference between the cumulative purge amount and an actual mass of the target device absorbing the contaminant; calculating a life ratio of the initial difference to the cumulative purge amount; determining a remaining service life of the filter screen based on the life ratio.
Optionally, the target device is an air purification device.
According to another aspect of the embodiments of the present invention, there is also provided a method for estimating a remaining life of a filter screen, including: controlling a dust sensing module to acquire the current dust concentration of a filter screen in the air purification equipment; calculating the initial mass of the air purification equipment for absorbing pollutants based on the current dust concentration and the air volume of the air outlet module which is started within a preset time period; determining a theoretical absorption amount of the pollutants by the air purification equipment; and estimating the residual service life of the filter screen based on the initial mass and the theoretical absorption capacity of the pollutants absorbed by the air purification equipment.
According to another aspect of the embodiments of the present invention, there is also provided an estimation apparatus for a remaining life of a filter screen, including: the device comprises a first obtaining unit, a second obtaining unit and a control unit, wherein the first obtaining unit is used for obtaining the current dust concentration of a filter screen in target equipment, and the current dust concentration is obtained by collecting the environmental dust concentration of the filter screen within a preset time period; a first calculation unit, configured to calculate an initial mass of the target device absorbing the pollutant based on the current dust concentration; a first determination unit for determining a theoretical absorption amount of the contaminant by the target device; a second calculation unit for calculating an actual mass of the target device absorbing the contaminant based on an initial mass of the target device absorbing the contaminant and a theoretical absorption amount of the contaminant; the first estimation unit is used for estimating the residual service life of the filter screen according to the actual mass of the pollutant absorbed by the target equipment and the accumulated purification amount of the particle pollutants by the filter screen.
Optionally, the first obtaining unit includes: the first control module is used for controlling a preset dust sensing module to acquire the environment dust amount and the environment dust concentration of a filter screen in the target equipment to obtain acquired data; the dust sensing module is used for acquiring data in a preset time period, and acquiring data of the dust sensing module; the first receiving module is used for receiving the collected data transmitted by the dust sensing module, obtaining dust concentration data of the filter screen in the preset time period, and determining all the dust concentration data of the filter screen before the preset time period; the first calculation module is used for calculating the current dust concentration of the filter screen based on the dust concentration data of the filter screen in the preset time period and all the dust concentration data before the preset time period.
Optionally, the first computing unit includes: the first determining module is used for determining a target gear of the target equipment in the preset time period and a target air volume corresponding to the target gear; and the second calculation module is used for calculating the initial mass of the pollutants absorbed by the target equipment based on the target air volume and the current dust concentration.
Optionally, the first determining unit includes: a second determination module for determining a penetration coefficient of a building in which the target device is located for particulate pollutants and a number of air changes of the building; the second acquisition module is used for acquiring the concentration of outdoor pollutants in the area where the target equipment is located and the natural settling rate of particle pollutants in the current environment; a third calculation module for calculating a theoretical uptake of the contaminant by the target device based on the penetration coefficient, the number of air changes, the concentration of the outdoor contaminant, and the natural settling rate of the particulate contaminant.
Optionally, the second computing unit includes: a third determining module for determining a first scaling factor corresponding to the initial mass and a second scaling factor corresponding to the theoretical absorption amount; and the fourth calculation module is used for calculating the actual mass of the target equipment for absorbing the pollutants based on the initial mass and the first proportional coefficient, and the theoretical absorption amount and the second proportional coefficient.
Optionally, the first estimating unit includes: a fifth calculation module for calculating an initial difference between the cumulative purge amount and an actual mass of the target device absorbing the contaminant; a sixth calculating module, configured to calculate a life ratio of the initial difference to the accumulated amount of purification; determining a remaining service life of the filter screen based on the life ratio.
Optionally, the target device is an air purification device.
According to another aspect of the embodiments of the present invention, there is also provided an estimation apparatus for a remaining life of a filter screen, including: the control unit is used for controlling the dust sensing module to acquire the current dust concentration of a filter screen in the air purification equipment; the third calculating unit is used for calculating the initial mass of the air purifying equipment for absorbing pollutants based on the current dust concentration and the air quantity of the air outlet module which is started within a preset time period; a second determination unit for determining a theoretical absorption amount of the contaminants by the air purification apparatus; and the second estimation unit is used for estimating the residual service life of the filter screen based on the initial mass and the theoretical absorption capacity of the pollutants absorbed by the air purification equipment.
According to another aspect of the embodiments of the present invention, there is also provided an air purifying apparatus including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform any of the above methods of estimating net remaining life via execution of the executable instructions.
According to another aspect of the embodiments of the present invention, there is also provided a storage medium, where the storage medium includes a stored program, and when the program runs, a device where the storage medium is located is controlled to execute any one of the methods for estimating the remaining life of the network described above.
In the embodiment of the invention, the current dust concentration of the filter screen in the target equipment is obtained by acquiring the environmental dust concentration of the filter screen within a preset time period, then the initial mass of the target equipment for absorbing the pollutants is calculated based on the current dust concentration, the theoretical absorption amount of the target equipment for the pollutants is determined, the actual mass of the target equipment for absorbing the pollutants is calculated based on the initial mass of the target equipment for absorbing the pollutants and the theoretical absorption amount of the pollutants, and finally the residual service life of the filter screen can be estimated according to the actual mass of the target equipment for absorbing the pollutants and the accumulated purification amount of the filter screen for particle pollutants. In the embodiment, dust parameters in equipment (such as an air purifier) can be collected, theoretical absorption amount of pollutants absorbed by a filter screen is combined, statistics is carried out in proportion, then the service life of the filter screen is evaluated, display deviation between the service life of the filter screen and the actual filter screen is reduced, the estimated residual service life of the filter screen is accurate, preparation is made for cleaning, updating and the like of the filter screen in the follow-up process, the service time of the filter screen can be prolonged, and the technical problem that the estimation result is inaccurate due to the fact that the residual service life of the filter screen of the air purifier is estimated by using the startup duration in the related technology is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow chart of an alternative method for estimating remaining life of a filter screen according to an embodiment of the present invention;
FIG. 2 is a flow chart of an alternative method for estimating remaining life of a filter screen according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an alternative filter screen remaining life estimation device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an alternative filter screen remaining life estimation device according to an embodiment of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in an order different than that shown.
Fig. 1 is a flowchart of an alternative method for estimating remaining life of a filter screen according to an embodiment of the present invention, as shown in fig. 1, the method includes the following steps:
step S102, acquiring the current dust concentration of a filter screen in target equipment, wherein the current dust concentration is obtained by collecting the environmental dust concentration of the filter screen within a preset time period;
step S104, calculating the initial mass of the target equipment for absorbing pollutants based on the current dust concentration;
step S106, determining the theoretical absorption capacity of the target equipment to the pollutants;
step S108, calculating the actual mass of the target equipment for absorbing the pollutants based on the initial mass of the target equipment for absorbing the pollutants and the theoretical absorption amount of the pollutants;
and step S110, estimating the residual service life of the filter screen according to the actual mass of the target equipment for absorbing the pollutants and the accumulated purification amount of the filter screen for the particle pollutants.
Through the steps, the current dust concentration of the filter screen in the target equipment can be acquired, wherein the current dust concentration is acquired after the environmental dust concentration of the filter screen is acquired within the preset time period, then the initial mass of the pollutant absorbed by the target equipment is calculated based on the current dust concentration, the theoretical absorption amount of the pollutant by the target equipment is determined, the actual mass of the pollutant absorbed by the target equipment is calculated based on the initial mass of the pollutant absorbed by the target equipment and the theoretical absorption amount of the pollutant, and finally the residual service life of the filter screen can be estimated according to the actual mass of the pollutant absorbed by the target equipment and the accumulated purification amount of the particle pollutant by the filter screen. In the embodiment, dust parameters in equipment (such as an air purifier) can be collected, theoretical absorption amount of pollutants absorbed by a filter screen is combined, statistics is carried out in proportion, then the service life of the filter screen is evaluated, display deviation between the service life of the filter screen and the actual filter screen is reduced, the estimated residual service life of the filter screen is accurate, preparation is made for cleaning, updating and the like of the filter screen in the follow-up process, the service time of the filter screen can be prolonged, and the technical problem that the estimation result is inaccurate due to the fact that the residual service life of the filter screen of the air purifier is estimated by using the startup duration in the related technology is solved.
The following will explain the embodiments of the present invention in detail with reference to the above steps.
And S102, acquiring the current dust concentration of a filter screen in target equipment.
The target equipment of the embodiment of the invention can be equipment containing a filter screen or performing filtering work, such as an air purifier, a humidifier, a sprayer and the like.
Preferably, the target device is an air purification device. The service life of the filter screen in the air purification equipment is schematically illustrated in the embodiment of the invention.
As an optional embodiment of the present invention, the step of obtaining the current dust concentration of the filter screen in the target device includes: controlling a preset dust sensing module to acquire the environment dust amount and the environment dust concentration of a filter screen in target equipment to obtain acquired data; sending a data calling signal to the dust sensing module, wherein the data calling signal is used for acquiring data in a preset time period collected by the dust sensing module; receiving collected data transmitted by a dust sensing module, obtaining dust concentration data of the filter screen in a preset time period, and determining all the dust concentration data of the filter screen before the preset time period; and calculating the current dust concentration of the filter screen based on the dust concentration data of the filter screen in the preset time period and all the dust concentration data before the preset time period.
The dust sensing module includes but is not limited to: a dust sensor, a dust sensing bag, etc. The dust sensing module is used for sensing dust on each module (including a filter screen) in the target equipment in real time, collected dust data (including environment dust amount and environment dust concentration) are processed once every preset time period (such as 3 minutes and 5 minutes), and a working gear is recorded, wherein the working gear is used for indicating the dust data filing grade.
Because the dust data collected at different moments are inconsistent, the subsequently collected dust data can be compared with the dust data collected at the previous time or the initially collected dust data; the collected dust data can be attached with the collection time during recording, meanwhile, the dust data collected for the first time can be recorded as PM2.5(1), the data collected for the previous time can be recorded as PM2.5(N-1), and the dust data collected for the current time can be recorded as PM2.5 (N).
In the present example, the dust concentration on the screen can be understood as PM 2.5.
After the data collected by the dust sensing module is received, if the data needs to be called, the data called each time needs to be identified, wherein the data called the previous time can be defined as C (t-1), and the data called the previous time is defined as C (t). And accumulating the data C (t-1) called at the previous time and the data C (t) called at the current time, and averaging to obtain the current dust concentration, wherein the current dust concentration can be understood as the environmental dust concentration of the target equipment.
And step S104, calculating the initial mass of the target equipment for absorbing the pollutants based on the current dust concentration.
As an alternative embodiment of the present invention, the initial mass of the filter screen absorbing actual contaminants may be calculated based on the equipment operating time and the current dust concentration; alternatively, the step of calculating the initial mass of the target device absorbing the pollutant based on the current dust concentration may comprise: determining a target gear of target equipment in a preset time period and a target air volume corresponding to the target gear; and calculating the initial mass of the pollutants absorbed by the target equipment based on the target air volume and the current dust concentration.
The air volume corresponding to different gears of the target equipment in different time intervals can be calculated, and the initial mass of pollutants absorbed by the air volume calculating equipment is recorded.
In the embodiment of the present invention, the initial mass may be calculated by using a first formula, wherein the first formula may beWhere Q1 is the initial mass, Mn is the current dust concentration at time n, Vn is the air volume at time n, and 0.833 is the corresponding time constant, and can be revised based on the time setting.
And step S106, determining the theoretical absorption amount of the target equipment to the pollutants.
In the embodiment of the present invention, when determining the theoretical absorption amount of the device for the contaminants, parameters of a building where the device is located, types of the contaminants inside and outside the room, and the like are required, and as an optional embodiment of the present invention, the step of determining the theoretical absorption amount of the target device for the contaminants includes: determining the penetration coefficient of a building where the target device is located for the particle pollutants and the ventilation times of the building; acquiring the concentration of outdoor pollutants in the area where the target equipment is located and the natural settling rate of particle pollutants in the current environment; and calculating the theoretical absorption amount of the target equipment to the pollutants based on the penetration coefficient, the air exchange times, the concentration of the outdoor pollutants and the natural sedimentation rate of the particle pollutants.
The penetration coefficient refers to the pair of buildingsThe transmission coefficient for particulate contaminants, e.g. the transmission coefficient is defined as PpThe transmission coefficient may be 0.8; the number of air changes is defined as the number of air changes per hour of the building itself, and is defined as KvThe number of air changes is 0.6 per hour; the concentration of outdoor contaminants may be defined as CoutFor example, 0.2 mg/cubic meter and the natural settling rate of particulate contamination can be defined as KoFor example, 0.2 per hour, and in calculating the theoretical absorption amount, the parameters such as the zone height of the zone where the device is located may be referred to. These parameters (including penetration coefficient, number of air changes, concentration of outdoor pollutants, natural settling rate) can be adjusted in real time according to the actual building, area height, etc.
In the embodiment of the present invention, the theoretical absorption amount can be calculated by the second formulaWherein Q2 is the theoretical absorption amount.
And step S108, calculating the actual mass of the target equipment for absorbing the pollutants based on the initial mass of the target equipment for absorbing the pollutants and the theoretical absorption amount of the pollutants.
In the embodiment of the present invention, the initial mass of the actual absorbed pollutant and the absorption amount of the theoretical pollutant need to be referred to, the mass of the pollutant absorbed by the device is calculated comprehensively, so as to calculate the current usage degree of the filter screen, and estimate the remaining service life of the filter screen, optionally, the step of calculating the actual mass of the pollutant absorbed by the target device includes: determining a first proportionality coefficient corresponding to the initial mass and a second proportionality coefficient corresponding to the theoretical absorption amount; and calculating the actual mass of the target device for absorbing the pollutants based on the initial mass and the first proportionality coefficient, and the theoretical absorption amount and the second proportionality coefficient.
That is, in the embodiment of the present invention, scaling coefficients are respectively set for the initial mass and the theoretical absorption amount, and the scaling coefficients can be adjusted according to actual operating conditions, for example, the first scaling coefficient is set to be 50%, and the second scaling coefficient is set to be 50%, so that the finally obtained actual mass is the product of the initial mass and the first scaling coefficient, and the product of the theoretical absorption amount and the second scaling coefficient, and the two product values are added to obtain the actual mass of the target device absorbing the pollutants, so that the calculation result is more accurate.
And step S110, estimating the residual service life of the filter screen according to the actual mass of the target equipment for absorbing the pollutants and the accumulated purification amount of the filter screen for the particle pollutants.
Optionally, the accumulated purification amount may be a total purification amount of the particle pollutants by the filter screen after the start-up operation to the current time point.
As an optional embodiment of the invention, the step of estimating the remaining service life of the filter screen comprises: calculating an initial difference between the accumulated decontamination volume and an actual mass of the target device absorbing the contaminant; calculating the life ratio of the initial difference value to the accumulated purification amount; and determining the remaining service life of the filter screen based on the life ratio.
Through the embodiment, the dust sensing module can be used for collecting dust data, and the initial mass of pollutants absorbed by the filter screen is calculated by combining the running time of the equipment; then, the theoretical pollutant absorption capacity of the equipment in the space is determined, statistics is carried out in proportion, then the service condition and the residual service life of the filter screen are evaluated, the calculation accuracy of the detection precision and the residual service life of the filter screen is improved, cleaning and replacement can be carried out in time, and the service time of the filter screen is prolonged.
The following description will be made schematically with the target apparatus as the air cleaning apparatus.
Fig. 2 is a flow chart of an alternative method for estimating the remaining life of a filter screen according to an embodiment of the present invention, as shown in fig. 2, the flow chart includes:
step S201, controlling a dust sensing module to acquire the current dust concentration of a filter screen in the air purification equipment;
step S203, calculating the initial mass of the air purification equipment for absorbing pollutants based on the current dust concentration and the air quantity of the air outlet module which is opened within a preset time period;
step S205, determining the theoretical absorption capacity of the air purification equipment to the pollutants;
and step S207, estimating the residual service life of the filter screen based on the initial mass and the theoretical absorption amount of the air purification equipment for absorbing the pollutants.
Through the steps, the current dust concentration of the filter screen in the air purification equipment can be collected by adopting the dust control sensing module, then the initial mass of the air purification equipment for absorbing the pollutants is calculated based on the current dust concentration and the air volume of the air outlet module which is opened in the preset time period, the theoretical absorption amount of the air purification equipment for the pollutants is determined, and finally the residual service life of the filter screen can be estimated based on the initial mass and the theoretical absorption amount of the air purification equipment for absorbing the pollutants. In the embodiment, dust data can be collected through the dust sensing module, the initial mass of the device for absorbing pollutants is calculated by combining actual operation data (such as air volume and operation time length), meanwhile, the theoretical absorption amount of the device for the pollutants is referred, the actual mass of the device for absorbing the pollutants is calculated in proportion, the remaining service life of the filter screen can be estimated, the detection precision of the filter screen is improved, the calculation precision can be improved, more accurate service life data can be obtained, the service time of the filter screen is correspondingly improved, and the technical problems that the remaining service life of the filter screen of the air purifier is estimated by using the startup time length in the related technology, and the estimation result is inaccurate are solved.
The dust sensing module may include, but is not limited to: the dust sensor can improve the collection precision of dust data by utilizing the dust sensing module, and can estimate the residual service life of the filter screen more accurately.
The invention is described below with reference to a device for estimating the residual life of a filter screen, wherein each of the following estimation devices comprises a plurality of units, and the operation logic of each unit corresponds to the steps of the estimation method.
Fig. 3 is a schematic diagram of an alternative device for estimating the remaining life of a filter screen according to an embodiment of the present invention, as shown in fig. 3, the device may include: a first obtaining unit 31, a first calculating unit 33, a first determining unit 35, a second calculating unit 37, a first estimating unit 39, wherein,
the first obtaining unit 31 is configured to obtain a current dust concentration of a filter screen in a target device, where the current dust concentration is obtained by collecting an environmental dust concentration of the filter screen within a preset time period;
a first calculation unit 33 for calculating an initial mass of the target apparatus absorbing the contaminant based on the current dust concentration;
a first determination unit 35 for determining a theoretical absorption amount of the contaminants by the target device;
a second calculation unit 37 for calculating an actual mass of the target device absorbing the contaminants based on the initial mass of the target device absorbing the contaminants and the theoretical absorption amount of the contaminants;
the first estimation unit 39 is used for estimating the remaining service life of the filter screen according to the actual mass of the target device absorbing the pollutants and the accumulated purification amount of the filter screen on the particle pollutants.
The device for estimating the remaining life of the filter screen can acquire the current dust concentration of the filter screen in the target equipment through the first acquiring unit 31, wherein the current dust concentration is obtained after acquiring the environmental dust concentration of the filter screen in a preset time period, then the initial mass of the target equipment for absorbing the pollutants is calculated through the first calculating unit 33 based on the current dust concentration, the theoretical absorption amount of the target equipment for the pollutants is determined through the first determining unit 35, the actual mass of the target equipment for absorbing the pollutants is calculated through the second calculating unit 37 based on the initial mass of the target equipment for absorbing the pollutants and the theoretical absorption amount of the pollutants, and finally the remaining service life of the filter screen can be estimated through the first estimating unit 39 according to the actual mass of the target equipment for absorbing the pollutants and the accumulated purification amount of the filter screen for the particle pollutants. In the embodiment, dust parameters in equipment (such as an air purifier) can be collected, theoretical absorption amount of pollutants absorbed by a filter screen is combined, statistics is carried out in proportion, then the service life of the filter screen is evaluated, display deviation between the service life of the filter screen and the actual filter screen is reduced, the estimated residual service life of the filter screen is accurate, preparation is made for cleaning, updating and the like of the filter screen in the follow-up process, the service time of the filter screen can be prolonged, and the technical problem that the estimation result is inaccurate due to the fact that the residual service life of the filter screen of the air purifier is estimated by using the startup duration in the related technology is solved.
Optionally, the first obtaining unit includes: the first control module is used for controlling the preset dust sensing module to acquire the environment dust amount and the environment dust concentration of a filter screen in the target equipment to obtain acquired data; the first sending module is used for sending a data calling signal to the dust sensing module, wherein the data calling signal is used for acquiring data collected by the dust sensing module within a preset time period; the first receiving module is used for receiving the collected data transmitted by the dust sensing module, obtaining dust concentration data of the filter screen in a preset time period, and determining all the dust concentration data of the filter screen before the preset time period; the first calculation module is used for calculating the current dust concentration of the filter screen based on the dust concentration data of the filter screen in the preset time period and all the dust concentration data before the preset time period.
Optionally, the first computing unit includes: the first determining module is used for determining a target gear of the target equipment in a preset time period and a target air volume corresponding to the target gear; and the second calculation module is used for calculating the initial mass of the pollutants absorbed by the target equipment based on the target air volume and the current dust concentration.
Alternatively, the first determining unit includes: the second determination module is used for determining the penetration coefficient of the building where the target device is located to the particle pollutants and the ventilation times of the building; the second acquisition module is used for acquiring the concentration of outdoor pollutants in the area where the target equipment is located and the natural settling rate of particle pollutants in the current environment; and the third calculation module is used for calculating the theoretical absorption amount of the target equipment to the pollutants on the basis of the penetration coefficient, the ventilation times, the concentration of outdoor pollutants and the natural sedimentation rate of the particle pollutants.
Optionally, the second calculating unit includes: a third determining module for determining a first scaling factor corresponding to the initial mass and a second scaling factor corresponding to the theoretical absorption amount; and the fourth calculation module is used for calculating the actual mass of the target equipment for absorbing the pollutants based on the initial mass and the first proportional coefficient, and the theoretical absorption amount and the second proportional coefficient.
Optionally, the first estimating unit includes: a fifth calculation module for calculating an initial difference between the accumulated purge amount and an actual mass of the target device absorbing the contaminants; the sixth calculation module is used for calculating the life ratio of the initial difference value to the accumulated purification amount; based on the ratio, the remaining useful life of the screen is determined.
In an embodiment of the present invention, the target device is an air purification device.
Fig. 4 is a schematic diagram of an alternative device for estimating the remaining life of a filter screen according to an embodiment of the present invention, as shown in fig. 4, the device may include: a control unit 42, a third calculation unit 44, a second determination unit 46, a second prediction unit 48, wherein,
the control unit 42 is used for controlling the dust sensing module to acquire the current dust concentration of the filter screen in the air purification equipment;
the third calculating unit 44 is configured to calculate an initial mass of the air purifying device for absorbing the pollutants based on the current dust concentration and an air volume of the air outlet module which is turned on within a preset time period;
a second determination unit 46 for determining a theoretical absorption amount of the contaminants by the air cleaning apparatus;
and the second estimation unit 48 is used for estimating the residual service life of the filter screen based on the initial mass and the theoretical absorption amount of the pollutants absorbed by the air purification equipment.
The device for estimating the remaining service life of the filter screen can control the dust sensing module to collect the current dust concentration of the filter screen in the air purification equipment through the control unit 42, then calculate the initial mass of the air purification equipment for absorbing pollutants based on the current dust concentration and the air volume of the air outlet module started in the preset time period through the third calculation unit 44, determine the theoretical absorption amount of the air purification equipment for the pollutants through the second determination unit 46, and finally estimate the remaining service life of the filter screen based on the initial mass and the theoretical absorption amount of the air purification equipment for absorbing the pollutants through the second estimation unit 48. In the embodiment, dust data can be collected through the dust sensing module, the initial mass of the device for absorbing pollutants is calculated by combining actual operation data (such as air volume and operation time length), meanwhile, the theoretical absorption amount of the device for the pollutants is referred, the actual mass of the device for absorbing the pollutants is calculated in proportion, the remaining service life of the filter screen can be estimated, the detection precision of the filter screen is improved, the calculation precision can be improved, more accurate service life data can be obtained, the service time of the filter screen is correspondingly improved, and the technical problems that the remaining service life of the filter screen of the air purifier is estimated by using the startup time length in the related technology, and the estimation result is inaccurate are solved.
The device for estimating the remaining life of the filter screen may further include a processor and a memory, wherein the first obtaining unit 31, the first calculating unit 33, the first determining unit 35, the second calculating unit 37, the first estimating unit 39, the control unit 42, the third calculating unit 44, the second determining unit 46, the second estimating unit 48, and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions.
The processor comprises a kernel, and the kernel calls a corresponding program unit from the memory. The kernel can be set to one or more than one, and the residual service life of the target device is estimated by adjusting the kernel parameters.
The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
According to another aspect of the embodiments of the present invention, there is also provided an air purifying apparatus including: a processor; and a memory for storing executable instructions for the processor; wherein the processor is configured to perform any of the above methods of estimating net remaining life via execution of executable instructions.
According to another aspect of the embodiments of the present invention, there is also provided a storage medium, where the storage medium includes a stored program, and when the program runs, the apparatus on which the storage medium is located is controlled to execute any one of the above methods for estimating the remaining network life.
The present application further provides a computer program product adapted to perform a program for initializing the following method steps when executed on a data processing device: acquiring the current dust concentration of a filter screen in target equipment, wherein the current dust concentration is obtained by collecting the environmental dust concentration of the filter screen within a preset time period; calculating the initial mass of the target equipment for absorbing the pollutants based on the current dust concentration; determining the theoretical absorption amount of the target equipment to the pollutants; calculating the actual mass of the target equipment for absorbing the pollutants based on the initial mass of the target equipment for absorbing the pollutants and the theoretical absorption amount of the pollutants; and estimating the residual service life of the filter screen according to the actual mass of the target equipment for absorbing the pollutants and the accumulated purification amount of the filter screen on the particle pollutants.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
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, may be located in one place, or may be distributed on a plurality of 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, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes 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 steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (12)
1. A method for estimating the residual life of a filter screen is characterized by comprising the following steps:
acquiring the current dust concentration of a filter screen in target equipment, wherein the current dust concentration is obtained by collecting the environmental dust concentration of the filter screen within a preset time period;
calculating an initial mass of the target device to absorb the contaminant based on the current dust concentration;
determining a theoretical absorption amount of the contaminant by the target device;
calculating an actual mass of the target device absorbing the contaminant based on the initial mass of the target device absorbing the contaminant and the theoretical amount of absorption of the contaminant;
and estimating the residual service life of the filter screen according to the actual mass of the pollutant absorbed by the target equipment and the accumulated purification amount of the particle pollutants by the filter screen.
2. The estimation method according to claim 1, wherein the step of obtaining the current dust concentration of the filter screen in the target device comprises:
controlling a preset dust sensing module to acquire the environment dust amount and the environment dust concentration of a filter screen in the target equipment to obtain acquired data;
sending a data calling signal to the dust sensing module, wherein the data calling signal is used for acquiring data collected by the dust sensing module within a preset time period;
receiving collected data transmitted by the dust sensing module, obtaining dust concentration data of the filter screen in the preset time period, and determining all dust concentration data of the filter screen before the preset time period;
and calculating the current dust concentration of the filter screen based on the dust concentration data of the filter screen in the preset time period and all the dust concentration data before the preset time period.
3. The estimation method according to claim 1, wherein the step of calculating the initial mass of the target device for absorbing the pollutants based on the current dust concentration comprises:
determining a target gear of the target equipment in the preset time period and a target air volume corresponding to the target gear;
calculating the initial mass of the target device to absorb the pollutants based on the target air volume and the current dust concentration.
4. The estimation method according to claim 1, wherein the step of determining the theoretical absorption amount of the pollutant by the target device comprises:
determining a penetration coefficient of a building in which the target device is located for particulate pollutants and a number of air changes of the building;
acquiring the concentration of outdoor pollutants in the area where the target equipment is located and the natural settling rate of particle pollutants in the current environment;
calculating a theoretical uptake of the contaminant by the target device based on the penetration coefficient, the number of air exchanges, the concentration of the outdoor contaminant, and the natural settling rate of the particulate contaminant.
5. The estimation method according to claim 1, wherein the step of calculating the actual mass of the target device to absorb the contaminant comprises:
determining a first scaling factor corresponding to the initial mass and a second scaling factor corresponding to the theoretical absorption amount;
calculating an actual mass of the target device to absorb the contaminant based on the initial mass and the first scaling factor, and the theoretical absorption amount and the second scaling factor.
6. The estimation method according to claim 1, wherein the step of estimating the remaining service life of the filter screen comprises:
calculating an initial difference between the cumulative purge amount and an actual mass of the target device absorbing the contaminant;
calculating a life ratio of the initial difference to the cumulative purge amount;
determining a remaining service life of the filter screen based on the life ratio.
7. The estimation method according to any one of claims 1 to 6, characterized in that the target apparatus is an air purification apparatus.
8. A method for estimating the residual life of a filter screen is characterized by comprising the following steps:
controlling a dust sensing module to acquire the current dust concentration of a filter screen in the air purification equipment;
calculating the initial mass of the air purification equipment for absorbing pollutants based on the current dust concentration and the air volume of the air outlet module which is started within a preset time period;
determining a theoretical absorption amount of the pollutants by the air purification equipment;
and estimating the residual service life of the filter screen based on the initial mass and the theoretical absorption capacity of the pollutants absorbed by the air purification equipment.
9. The utility model provides a device for predicting the residual life of a filter screen, which is characterized by comprising:
the device comprises a first obtaining unit, a second obtaining unit and a control unit, wherein the first obtaining unit is used for obtaining the current dust concentration of a filter screen in target equipment, and the current dust concentration is obtained by collecting the environmental dust concentration of the filter screen within a preset time period;
a first calculation unit, configured to calculate an initial mass of the target device absorbing the pollutant based on the current dust concentration;
a first determination unit for determining a theoretical absorption amount of the contaminant by the target device;
a second calculation unit for calculating an actual mass of the target device absorbing the contaminant based on an initial mass of the target device absorbing the contaminant and a theoretical absorption amount of the contaminant;
the first estimation unit is used for estimating the residual service life of the filter screen according to the actual mass of the pollutant absorbed by the target equipment and the accumulated purification amount of the particle pollutants by the filter screen.
10. The utility model provides a device for predicting the residual life of a filter screen, which is characterized by comprising:
the control unit is used for controlling the dust sensing module to acquire the current dust concentration of a filter screen in the air purification equipment;
the third calculating unit is used for calculating the initial mass of the air purifying equipment for absorbing pollutants based on the current dust concentration and the air quantity of the air outlet module which is started within a preset time period;
a second determination unit for determining a theoretical absorption amount of the contaminants by the air purification apparatus;
and the second estimation unit is used for estimating the residual service life of the filter screen based on the initial mass and the theoretical absorption capacity of the pollutants absorbed by the air purification equipment.
11. An air purification apparatus, comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to execute the method for estimating the remaining life of the filter screen according to any one of claims 1 to 8 by executing the executable instructions.
12. A storage medium, characterized in that the storage medium comprises a stored program, wherein when the program runs, the storage medium is controlled to execute the method for estimating the remaining life of the filter screen according to any one of claims 1 to 8.
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Application publication date: 20191220 |