CN105841295A - Filter screen service life detecting method and device - Google Patents
Filter screen service life detecting method and device Download PDFInfo
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- CN105841295A CN105841295A CN201610184227.5A CN201610184227A CN105841295A CN 105841295 A CN105841295 A CN 105841295A CN 201610184227 A CN201610184227 A CN 201610184227A CN 105841295 A CN105841295 A CN 105841295A
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- Prior art keywords
- drainage screen
- motor
- current
- pulse signal
- saturation grade
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/30—Velocity
Abstract
The embodiment of the invention provides a filter screen service life detecting method and device, and relates to the field of air purification. The problem that the service life of a filter screen can not be determined precisely in an existing air purification device is solved. The method comprises the steps of acquiring the current rotating speed and the current PWM pulse signal duty ratio of a motor, acquiring the filter screen saturation grade matched with the current PWM pulse signal duty ratio and the current rotating speed of the motor from a filter screen saturation grade table according to the current PWM pulse signal duty ratio and the current rotating speed of the motor, and determining the service life of the filter screen according to the filter screen saturation grade matched with the current PWM pulse signal duty ratio and the current rotating speed of the motor, wherein the filter screen saturation grade table is a mapping relation table among the filter screen saturation grade, the interval range of the rotating speed of the motor and the interval range of the PWM pulse signal duty ratio of the motor. The method and device are used for detecting the service life of the filter screen.
Description
Technical field
The present invention relates to air purification field, particularly relate to a kind of drainage screen life detecting method and dress
Put.
Background technology
Along with enhancing and the growth in the living standard of people's environmental consciousness, recognize all the more clean air pair
The importance of health of human body.The current internationally recognized method improving IAQ (indoor air quality) is to pass through air
Depurator purifies the air of a room, and when air purifier is properly functioning, its key function parts
Drainage screen (the various function drainage screens such as such as HEPA drainage screen, activated charcoal strainer) can adsorb ash
Dirt.When on drainage screen absorption dust reach saturated after air purification effect will be made to decline, more serious
Purification function can be caused to lose.Therefore when on drainage screen absorption dust reach saturated after should carry in time
Awake user changes drainage screen.
Current Normal practice is to indicate to inhale on drainage screen in the operation instructions of air cleaner
Attached dust reaches saturated approximate time, notifies when user needs to change with this and filters
Net.But, during actually used, due to the difference of different user environment, drainage screen is inhaled
The time meeting difference that attached dust reaches saturated is very big, also results in the length in service life of drainage screen
Widely different, if only with the mode of time estimation, it is impossible to accurately to determine the use longevity of drainage screen
Life.If filter screen replacement early, can be wasted drainage screen, if filter screen replacement is late, can cause
Filter effect is deteriorated.
Summary of the invention
Embodiments of the invention provide a kind of drainage screen life detecting method and device, solve existing
The problem that the service life of drainage screen cannot accurately be determined by purifier.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
First aspect, it is provided that a kind of drainage screen life detecting method, is applied to air cleaning facility, institute
Stating air purifier equipment and include drainage screen and motor, wherein said motor-driven fan provides by institute
Stating the air-flow of drainage screen, described method includes:
Obtain the current rotating speed of described motor and the pwm pulse signal duty that described motor is current
Ratio；
The pwm pulse signal dutycycle current according to described motor and described motor work as forward
Speed, obtains the pwm pulse signal dutycycle current with described motor from drainage screen saturation grade table
And the drainage screen saturation grade of the current rotational speed matches of described motor；Described drainage screen saturation grade
Table is the interval range of the motor speed of drainage screen saturation grade and described motor and described motor
Mapping relations table between the interval range of pwm pulse signal dutycycle；
Working as of the pwm pulse signal dutycycle current according to described and described motor and described motor
The drainage screen saturation grade of front rotational speed matches determines the life-span of described drainage screen.
On the other hand, it is provided that a kind of drainage screen life detecting device, it is applied to air cleaning facility, institute
Stating air cleaning facility and include drainage screen and motor, wherein said motor-driven fan provides by described
The air-flow of drainage screen, described drainage screen life detecting device includes:
First acquisition module, current for the current rotating speed and described motor obtaining described motor
Pwm pulse signal dutycycle；
Second acquisition module, for according to the current pwm pulse signal dutycycle of described motor and
The current rotating speed of described motor, obtains current with described motor from drainage screen saturation grade table
The drainage screen of the current rotational speed matches of pwm pulse signal dutycycle and described motor is saturated etc.
Level；Described drainage screen saturation grade table is the district of drainage screen saturation grade and the motor speed of described motor
Between scope and described motor pwm pulse signal dutycycle interval range between mapping relations
Table；
Determine module, the pwm pulse signal dutycycle current according to described and described motor and institute
The drainage screen saturation grade of the current rotational speed matches stating motor determines the life-span of described drainage screen.
The drainage screen life detecting method of embodiments of the invention offer and device, by obtaining motor
Current rotating speed and the current PWM duty cycle of motor；Then, account for according to the PWM that motor is current
Empty ratio and the current rotating speed of motor, obtain current with motor from drainage screen saturation grade table
The drainage screen saturation grade of the current rotational speed matches of PWM duty cycle and motor, wherein, this mistake
Filter screen saturation grade table is interval range and the electricity of the motor speed of drainage screen saturation grade and motor
Mapping relations table between the interval range of the pwm pulse signal dutycycle of machine；Finally, according to electricity
Pwm pulse signal dutycycle and the drainage screen of the current rotational speed matches of motor that machine is current are saturated
Grade determines the life-span of drainage screen.
Use the time compared to prior art by the fixing drainage screen indicated in description, and do not consider
Coarse drainage screen residual life that the current environmental factors of user is determined, this programme is to pass through
Obtain interval range and the motor storing the motor speed having drainage screen saturation grade and motor in advance
PWM duty cycle interval range between the drainage screen saturation grade table of mapping relations, then, from
This drainage screen saturation grade table obtains with the current PWM duty cycle of this motor and motor work as forward
The drainage screen saturation grade that speed matches, owing to the current rotating speed of motor is that air purifier is based on working as
Front environmental aspect selects, and therefore, the drainage screen saturation grade that this is selected take into account current
Environmental factors, so that the drainage screen life-span determined based on this drainage screen saturation grade can be more
Accurately.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to embodiment or existing
In technology description, the required accompanying drawing used is briefly described, it should be apparent that, in describing below
Accompanying drawing is only some embodiments of the present invention, for those of ordinary skill in the art, is not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The method flow diagram of a kind of drainage screen life detecting method that Fig. 1 provides for the embodiment of the present invention；
The structural representation of a kind of drainage screen life detecting device that Fig. 2 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is entered
Row clearly and completely describes, it is clear that described embodiment is only a part of embodiment of the present invention,
Rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
Have and make the every other embodiment obtained under creative work premise, broadly fall into present invention protection
Scope.
The executive agent of the drainage screen life detecting method that the embodiment of the present invention provides can be drainage screen
Life detecting device, or for performing the air cleaning facility of above-mentioned drainage screen life tests, this mistake
Filter screen life detecting device is independently arranged or is arranged in described air cleaning facility
Functional module.Wherein, this air cleaning facility can be air purifier, air-conditioning, water purifier, take out
The equipment such as lampblack absorber, air filter, dehumidifier and cleaner unit, do not limit.Concrete,
Air cleaning facility in the present embodiment, except including above-mentioned drainage screen life detecting device, also includes
Drainage screen and motor, wherein, this motor provides the air-flow by drainage screen for driving fan.
The terms "and/or", a kind of incidence relation describing affiliated partner, expression can
There are three kinds of relations, such as, A and/or B, can represent: individualism A, there is A simultaneously
And B, individualism B these three situation.It addition, character "/" herein, typically represent and front and back close
Join the relation liking a kind of "or".
For the ease of clearly describing the technical scheme of the embodiment of the present invention, in an embodiment of the present invention,
Have employed the printed words such as " first ", " second " and to function or act on essentially identical identical entry or similar
Item makes a distinction, and it will be appreciated by those skilled in the art that the printed words not logarithm such as " first ", " second "
Amount and execution order are defined.
Embodiments of the invention provide a kind of drainage screen life detecting method, are applied to air cleaning and set
It is standby, as it is shown in figure 1, the method comprises the steps:
101, drainage screen life detecting device obtains the current rotating speed of motor and the PWM that motor is current
Pulse signal dutycycle.
Exemplary, in order to avoid the pulse width modulation of motor is (English: Pulse Width
Modulation, is called for short: PWM) pulse signal dutycycle becomes along with the rising of motor speed
Changing, when motor within a predetermined period of time maintains fixed rotating speed, drainage screen life detecting device obtains
The current rotating speed of above-mentioned motor and the current pwm pulse signal dutycycle of above-mentioned motor.Wherein,
PWM duty cycle in the present embodiment refers to the conduction time of pulse signal and the ratio of power cycles.Show
Example, this pulse signal can be in a string preferable square-wave cycle sequence, continuing of positive pulse
Time and the ratio in pulse total cycle, the persistent period of this positive pulse is above-mentioned conduction time.
Exemplary, current rotating speed and the motor of drainage screen life detecting device acquisition motor are current
Pwm pulse signal dutycycle specifically includes: first, obtains the current rotating speed of above-mentioned motor；Then,
When motor maintains fixed rotating speed within a predetermined period of time, the current rotating speed and the motor that obtain motor are worked as
Front pwm pulse signal dutycycle.
In the embodiment of the present invention, the rotating speed of the motor in air cleaning facility controls based on motor
PWM duty cycle realizes, and under usual condition, the rotating speed of motor is the highest, corresponding motor defeated
Going out power the biggest, PWM duty cycle is the biggest.Concrete, after adsorbing dust on drainage screen, by
In the mesh of dust blocking drainage screen, thus cause being declined by the air draught amount of drainage screen, and empty
Gas cleaning equipment in order to ensure the constant of air draught amount by drainage screen, then can control motor and improve
The rotating speed of motor, and then improve the output of motor, finally improve the PWM duty cycle of motor.
Therefore, if the air of this air cleaning facility output constant basis, then drainage screen saturation grade is the highest (i.e.
Drainage screen absorption dust is the most), then corresponding motor speed is the fastest, the output of corresponding motor
And PWM duty cycle is the biggest.
102, drainage screen life detecting device according to the current pwm pulse signal dutycycle of motor with
And the current rotating speed of motor, from drainage screen saturation grade table, obtain the pwm pulse current with motor
The drainage screen saturation grade of the current rotational speed matches of signal dutyfactor and motor.
Concrete, this drainage screen saturation grade for represent the amount of dust of absorption on drainage screen number,
Drainage screen saturation grade is the highest, then it represents that on this drainage screen, the amount of dust of absorption is the most；Otherwise, filter
Net saturation grade is the lowest, then it represents that on this drainage screen, the amount of dust of absorption is the fewest.
Wherein, the above-mentioned motor speed that drainage screen saturation grade table is drainage screen saturation grade and motor
Interval range and motor pwm pulse signal dutycycle interval range between mapping relations
Table.
Optionally, forward is worked as according to the current pwm pulse signal dutycycle of motor and this motor
Speed, obtain from drainage screen saturation grade table the pwm pulse signal dutycycle current with this motor with
And after the drainage screen saturation grade of the current rotational speed matches of this motor, it is also possible to obtain according to above-mentioned
The drainage screen saturation grade that matches of the current pwm pulse signal dutycycle of motor obtain mistake
The processing mode of filter screen.Exemplary, this processing mode includes three kinds of different process modes of operation,
It is respectively as follows: primary warning, middle rank is reported to the police and senior warning.When drainage screen saturation grade is at 1-3,
Drainage screen life detecting device carries out primary warning, shows drainage screen saturation grade by display screen；When
Drainage screen saturation grade is when 4-7, and drainage screen life detecting device carries out middle rank warning, automatically performs
Filtering net cleaning operates；When drainage screen saturation grade is at 8-10, drainage screen life detecting device is sent out
Go out high level alarm out of service, wait that user changes drainage screen.If drainage screen life detecting device
The drainage screen saturation grade of output is fluctuated, then it is assumed that be that the drift objects such as neighbouring curtain are to drainage screen
Being blocked, drainage screen life detecting device is pointed out, and waits that user processes.Here,
This processing mode corresponding to drainage screen saturation grade does not carry out concrete restriction, merely just lists
One concrete example, this processing mode corresponding to drainage screen saturation grade can be in prior art
Any one or more of.
Exemplary, the drainage screen saturation grade table in the present embodiment can be as shown in table 1 below:
Table 1
Exemplary, drainage screen saturation grade table that table 1 is given is only in the present embodiment cited one
Individual example.Optionally, the grade of this drainage screen saturation grade table also can carry out drawing of other accuracy classes
Point, such as drainage screen saturation grade precision can also be set to 5 or 0.5 etc..At this not to this filtration
The saturation grade precision of net is defined.
Exemplary, it is assumed that drainage screen life detecting device detects that the current rotating speed of motor runs to turn
During speed 2 (1000-1499), the current pwm pulse signal dutyfactor value of motor that correspondence obtains is
22, when in lookup drainage screen saturation grade table, the rotating speed of motor runs to rotating speed 2 (1000-1499),
The pwm pulse signal dutyfactor value obtained is the drainage screen saturation grade table medium speed 2 corresponding to 22
(1000-1499) under, the interval range 20-24 of pwm pulse signal dutycycle, determines this filtration
The saturation grade of net reaches saturation grade 7.
103, drainage screen life detecting device is according to the pwm pulse signal dutycycle current with motor
And the drainage screen saturation grade of the current rotational speed matches of motor determines the life-span of drainage screen.
In the present embodiment, the life-span of drainage screen can be immediately arrived at according to drainage screen saturation grade, it is possible to
The longevity of drainage screen is determined with the computing formula between the saturation grade according to drainage screen and drainage screen life-span
Life.
Exemplary, drainage screen life detecting device can be according to drainage screen saturation grade set in advance
In the corresponding drainage screen life-span, directly obtaining the life-span of drainage screen, drainage screen life detecting device is all right
The life-span of drainage screen is determined according to the algorithm between drainage screen saturation grade and drainage screen.
Exemplary, drainage screen life detecting device is current with motor according to drainage screen saturation grade
The drainage screen saturation grade that pwm pulse signal dutycycle matches determines the life-span of drainage screen, tool
Body comprises the steps:
The drainage screen that 103a, the basis pwm pulse signal dutycycle current with motor match is saturated
Computing formula between grade and drainage screen life-span determines the life-span of drainage screen.
In the present embodiment, the computing formula in drainage screen life-span is:(formula 1), wherein,
S is the life-span of drainage screen, S0For the initial lifetime of drainage screen, n is the PWM arteries and veins current with motor
Rush the drainage screen saturation grade that signal dutyfactor matches, and n ∈ (1,2 ..., m), m is that drainage screen is saturated etc.
Level table most exceeds filter screen saturation grade, αiSaturated etc. for drainage screen that drainage screen saturation grade i is corresponding
Level weight coefficient, tiIt is in use time during drainage screen saturation grade i for drainage screen.
Such as, if this drainage screen dispatches from the factory, the life-span is 900 hours, when drainage screen saturation grade 1 time
Between be 100 hours, the time when drainage screen saturation grade 2 is 50 hours, and drainage screen is saturated
Time during level 3 is 30 hours, and this weight coefficient corresponding to drainage screen saturation grade is respectively 1,2,3
The current age of the drainage screen calculated according to above-mentioned formula 1 is: 900-(100*1+50*2+30*3)
=610 hours.
Embodiments of the invention provide drainage screen life detecting method, by obtain motor work as forward
Fast and that motor is current PWM duty cycle；Then, according to the current PWM duty cycle of motor with
And the current rotating speed of motor, from drainage screen saturation grade table, obtain the PWM duty current with motor
The drainage screen saturation grade of the current rotational speed matches of ratio and motor, wherein, this drainage screen is saturated
Level table is interval range and the PWM arteries and veins of motor of the motor speed of drainage screen saturation grade and motor
Rush the mapping relations table between the interval range of signal dutyfactor；Finally, according to the PWM current with motor
The drainage screen saturation grade of the current rotational speed matches of pulse signal dutycycle and motor was determined
The life-span of filter screen.
Use the time compared to prior art by the fixing drainage screen indicated in description, and do not consider
Coarse drainage screen residual life that the current environmental factors of user is determined, this programme is to pass through
Obtain interval range and the motor storing the motor speed having drainage screen saturation grade and motor in advance
PWM duty cycle interval range between the drainage screen saturation grade table of mapping relations, then, from
This drainage screen saturation grade table obtains with the current PWM duty cycle of this motor and motor work as forward
The drainage screen saturation grade that speed matches, owing to the current rotating speed of motor is that air purifier is based on working as
Front environmental aspect selects, and therefore, the drainage screen saturation grade that this is selected take into account current
Environmental factors, so that the drainage screen life-span determined based on this drainage screen saturation grade can be more
Accurately.
Embodiments of the invention provide a kind of drainage screen life detecting device, including drainage screen and motor,
Wherein, motor-driven fan provides the air-flow by drainage screen, as in figure 2 it is shown, the inspection of drainage screen life-span
Survey device 2 to include: first acquisition module the 21, second acquisition module 22 and determine module 23, wherein:
First acquisition module 21, for obtaining the current rotating speed of motor and the PWM arteries and veins that motor is current
Rush signal dutyfactor.
Second acquisition module 22, for the pwm pulse signal dutycycle current according to motor and electricity
The current rotating speed of machine, obtains the pwm pulse signal current with motor from drainage screen saturation grade table
The drainage screen saturation grade of the current rotational speed matches of dutycycle and motor；Drainage screen saturation grade table
Pwm pulse signal dutycycle for the motor speed of drainage screen saturation grade and motor and motor
Mapping relations table between interval range.
Determine module 23, for according to the pwm pulse signal dutycycle current with motor and motor
The drainage screen saturation grade of current rotational speed matches determine life-span of drainage screen.
Optionally, above-mentioned first acquisition module 21 specifically for:
When motor maintains fixed rotating speed within a predetermined period of time, obtain current rotating speed and the motor of motor
Current pwm pulse signal dutycycle.
Optionally, above-mentioned first acquisition module 21 specifically for；
Obtain the current rotating speed of motor；
Current rotating speed according to motor obtains the pwm pulse signal dutycycle that motor is current.
Exemplary, as in figure 2 it is shown, drainage screen life detecting device 2 also includes: the 3rd obtains mould
Block 24.
3rd acquisition module 24, for according to the pwm pulse signal dutycycle phase current with motor
The drainage screen saturation grade joined, obtains the processing mode to drainage screen.
Optionally, above-mentioned determine module 23 specifically for:
The drainage screen saturation grade that matches according to the pwm pulse signal dutycycle current with motor and
Computing formula between the drainage screen life-span determines the life-span of drainage screen；
Computing formula is:
Wherein, S is the life-span of drainage screen, S0For the initial lifetime of drainage screen, n is to work as with motor
The drainage screen saturation grade that front pwm pulse signal dutycycle matches, and n ∈ (1,2 ..., m), m is
Drainage screen saturation grade table most exceeds filter screen saturation grade, αiCorresponding for drainage screen saturation grade i
Drainage screen saturation grade weight coefficient, tiIt is in use during drainage screen saturation grade i for drainage screen
Time.
Embodiments of the invention provide drainage screen life detecting device, by obtain motor work as forward
Fast and that motor is current PWM duty cycle；Then, according to the current PWM duty cycle of motor with
And the current rotating speed of motor, from drainage screen saturation grade table, obtain the PWM duty current with motor
The drainage screen saturation grade of the current rotational speed matches of ratio and motor, wherein, this drainage screen is saturated
Level table is interval range and the PWM arteries and veins of motor of the motor speed of drainage screen saturation grade and motor
Rush the mapping relations table between the interval range of signal dutyfactor；Finally, according to the PWM current with motor
The drainage screen saturation grade of the current rotational speed matches of pulse signal dutycycle and motor was determined
The life-span of filter screen.
Use the time compared to prior art by the fixing drainage screen indicated in description, and do not consider
Coarse drainage screen residual life that the current environmental factors of user is determined, this programme is to pass through
Obtain interval range and the motor storing the motor speed having drainage screen saturation grade and motor in advance
PWM duty cycle interval range between the drainage screen saturation grade table of mapping relations, then, from
This drainage screen saturation grade table obtains with the current PWM duty cycle of this motor and motor work as forward
The drainage screen saturation grade that speed matches, owing to the current rotating speed of motor is that air purifier is based on working as
Front environmental aspect selects, and therefore, the drainage screen saturation grade that this is selected take into account current
Environmental factors, so that the drainage screen life-span determined based on this drainage screen saturation grade can be more
Accurately.
In several embodiments provided herein, it should be understood that disclosed apparatus and method,
Can realize by another way.Such as, device embodiment described above is only schematically
, such as, the division of described module, it is only a kind of logic function and divides, actual permissible when realizing
Have other dividing mode, the most multiple modules or assembly can in conjunction with or be desirably integrated into another
System, or some features can ignore, or do not perform.Another point, shown or discussed mutual it
Between coupling or direct-coupling or communication connection can be indirect by some interfaces, device or module
Coupling or communication connection, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate,
The parts shown as unit can be or may not be physical location, i.e. may be located at a ground
Side, or can also be distributed on multiple NE.Can select therein according to the actual needs
Some or all of module realizes the purpose of the present embodiment scheme.
It addition, each functional module in each embodiment of the present invention can be integrated in a processing unit
In, it is also possible to it is that the independent physics of modules includes, it is also possible to two or more modules are integrated in
In one unit.Above-mentioned integrated module both can realize to use the form of hardware, it would however also be possible to employ hard
Part adds the form of software function module and realizes.
The above-mentioned integrated unit realized with the form of software function module, can be stored in a calculating
In machine read/write memory medium.Above-mentioned software function module is stored in a storage medium, if including
Dry instruction is with so that a computer equipment (can be personal computer, server, or network
Equipment etc.) perform the part steps of method described in each embodiment of the present invention.And aforesaid storage medium
Including: USB flash disk, portable hard drive, read only memory (Read-Only Memory is called for short ROM),
Random access memory (Random Access Memory is called for short RAM), magnetic disc or CD
Etc. the various media that can store program code.
Last it is noted that above example is only in order to illustrate technical scheme, rather than right
It limits；Although the present invention being described in detail with reference to previous embodiment, this area common
Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be repaiied by it
Change, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, not
The essence making appropriate technical solution departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a drainage screen life detecting method, it is characterised in that be applied to air cleaning facility,
Described air cleaning facility also includes drainage screen and motor, and wherein said motor-driven fan provides logical
Crossing the air-flow of described drainage screen, described method includes:
Obtain the current rotating speed of described motor and the pwm pulse signal duty that described motor is current
Ratio；
The pwm pulse signal dutycycle current according to described motor and described motor work as forward
Speed, obtains the pwm pulse signal duty current with described motor from drainage screen saturation grade table
The drainage screen saturation grade of the current rotational speed matches of ratio and described motor；Described drainage screen is saturated
Table of grading is drainage screen saturation grade and the interval range of the motor speed of described motor and described
Mapping relations table between the interval range of the pwm pulse signal dutycycle of motor；
The pwm pulse signal dutycycle current according to described and described motor and described motor
The drainage screen saturation grade of current rotational speed matches determines the life-span of described drainage screen.
Method the most according to claim 1, it is characterised in that the described motor of described acquisition
Current machine rotating speed and the current pwm pulse signal dutycycle of described motor, specifically include:
When motor maintains fixed rotating speed within a predetermined period of time, the motor described in acquisition is current and institute
State the pwm pulse signal dutycycle that motor is current.
Method the most according to claim 1 and 2, it is characterised in that obtain described motor
Current rotating speed and the current pwm pulse signal dutycycle of described motor, specifically include；
Obtain the current machine rotating speed of described motor；
Current rotating speed according to described motor obtains the pwm pulse signal duty that described motor is current
Ratio.
Method the most according to claim 1, it is characterised in that described according to described motor
Current pwm pulse signal dutycycle and the current rotating speed of described motor are saturated from drainage screen
Table of grading obtains the pwm pulse signal dutycycle current with described motor and described motor
After the drainage screen saturation grade of current rotational speed matches, also include:
The drainage screen matched according to the pwm pulse signal dutycycle that described and described motor is current
Saturation grade, obtains the processing mode to described drainage screen.
Method the most according to claim 1, it is characterised in that according to described and described electricity
The drainage screen saturation grade that the current pwm pulse signal dutycycle of machine matches determines described mistake
In the life-span of filter screen, specifically include:
The drainage screen matched according to the pwm pulse signal dutycycle that described and described motor is current
Computing formula between saturation grade and described drainage screen life-span determines the life-span of described drainage screen；
Described computing formula is:
Wherein, described S is the life-span of described drainage screen, described S0The initial longevity for described drainage screen
Life, described n is the mistake that the described pwm pulse signal dutycycle current with described motor matches
Filter screen saturation grade, and n ∈ (1,2 ..., m), m is the high filtration in described drainage screen saturation grade table
Net saturation grade, described αiThe drainage screen saturation grade weighting corresponding for drainage screen saturation grade i is
Number, described tiIt is in use time during described drainage screen saturation grade i for described drainage screen.
6. a drainage screen life detecting device, it is characterised in that be applied to air cleaning facility,
Described air cleaning facility also includes drainage screen and motor, and wherein said motor-driven fan provides logical
Crossing the air-flow of described drainage screen, described drainage screen life detecting device includes:
First acquisition module, obtains the current rotating speed of described motor and the PWM that described motor is current
Pulse signal dutycycle；
Second acquisition module, the pwm pulse signal dutycycle current according to described motor and institute
State the current rotating speed of motor, from drainage screen saturation grade table, obtain the PWM current with described motor
The drainage screen saturation grade of the current rotational speed matches of pulse signal dutycycle and described motor；Institute
State the interval that drainage screen saturation grade table is drainage screen saturation grade and the motor speed of described motor
Mapping relations between the interval range of the pwm pulse signal dutycycle of scope and described motor
Table；
Determine module, for the pwm pulse signal dutycycle current according to described and described motor
And the drainage screen saturation grade of the current rotational speed matches of described motor determines described drainage screen
Life-span.
Device the most according to claim 6, it is characterised in that described first acquisition module
Specifically for:
When motor maintains fixed rotating speed within a predetermined period of time, obtain the current rotating speed of described motor with
And the pwm pulse signal dutycycle that described motor is current.
8. according to the device described in claim 6 or 7, it is characterised in that described first obtains
Module specifically for；
Obtain the current machine rotating speed of described motor；
Current rotating speed according to described motor obtains the pwm pulse signal duty that described motor is current
Ratio.
Device the most according to claim 6, it is characterised in that described device also includes:
3rd acquisition module, for accounting for according to the pwm pulse signal that described and described motor is current
The empty ratio drainage screen saturation grade matched, obtains the processing mode to described drainage screen.
Device the most according to claim 6, it is characterised in that described determine that module is concrete
For:
The drainage screen matched according to the pwm pulse signal dutycycle that described and described motor is current
Computing formula between saturation grade and described drainage screen life-span determines the life-span of described drainage screen；
Described computing formula is:
Wherein, described S is the life-span of described drainage screen, described S0The initial longevity for described drainage screen
Life, described n is the mistake that the described pwm pulse signal dutycycle current with described motor matches
Filter screen saturation grade, and n ∈ (1,2 ..., m), m is the high filtration in described drainage screen saturation grade table
Net saturation grade, described αiThe drainage screen saturation grade weighting corresponding for drainage screen saturation grade i is
Number, described tiIt is in use time during described drainage screen saturation grade i for described drainage screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610184227.5A CN105841295A (en) | 2016-03-28 | 2016-03-28 | Filter screen service life detecting method and device |
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| CN106679084A (en) * | 2016-12-27 | 2017-05-17 | 江苏中科睿赛污染控制工程有限公司 | Filtering net replacement reminding method for fresh air system |
| WO2017197805A1 (en) * | 2016-05-19 | 2017-11-23 | 广东意菲尼环境科技有限公司 | Filter screen service life control method for air purifier |
| CN107562998A (en) * | 2017-07-31 | 2018-01-09 | 广东美的环境电器制造有限公司 | Decision method, decision-making system and the computer equipment in filter screen life-span |
| CN107606750A (en) * | 2017-09-16 | 2018-01-19 | 青岛海尔空调器有限总公司 | The method and device that air conditioning purge filter element replacing is reminded |
| CN108079701A (en) * | 2016-11-21 | 2018-05-29 | 苏州三星电子有限公司 | A kind of detection method and system of filter screen dust accumulation degree |
| CN108224515A (en) * | 2016-12-21 | 2018-06-29 | 九阳股份有限公司 | A kind of kitchen ventilator flexible filter screen renews control method and kitchen ventilator automatically |
| CN108421337A (en) * | 2018-02-11 | 2018-08-21 | 广东美的环境电器制造有限公司 | A kind of strainer service life determines method, air purifier and computer storage media |
| CN108832852A (en) * | 2018-06-21 | 2018-11-16 | 广东美的环境电器制造有限公司 | Interference control method, device, cleaning equipment and computer readable storage medium |
| CN111248812A (en) * | 2018-12-03 | 2020-06-09 | 添可智能科技有限公司 | Dust collector filter screen replacement reminding method and system and dust collector |
| CN111272628A (en) * | 2020-02-17 | 2020-06-12 | 海信（山东）空调有限公司 | Air purification equipment and filter screen service life detection method and detection device thereof |
| CN111750510A (en) * | 2019-03-29 | 2020-10-09 | 松下电器研究开发(苏州)有限公司 | Control device and control method for air conditioner |
| CN112443940A (en) * | 2020-10-21 | 2021-03-05 | 珠海格力电器股份有限公司 | Air conditioner indoor unit, measurement and control method, measurement and control system, air conditioner and storage medium |
| CN113080792A (en) * | 2017-08-17 | 2021-07-09 | 追创科技(苏州)有限公司 | Sweeping robot and working scene judgment method thereof |
| CN114543260A (en) * | 2022-03-25 | 2022-05-27 | 珠海格力电器股份有限公司 | Filter screen state detection method and device, storage medium and air purifier |
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| WO2017197805A1 (en) * | 2016-05-19 | 2017-11-23 | 广东意菲尼环境科技有限公司 | Filter screen service life control method for air purifier |
| CN108079701B (en) * | 2016-11-21 | 2020-11-06 | 苏州三星电子有限公司 | Method and system for detecting dust deposition degree of filter screen |
| CN108079701A (en) * | 2016-11-21 | 2018-05-29 | 苏州三星电子有限公司 | A kind of detection method and system of filter screen dust accumulation degree |
| CN108224515A (en) * | 2016-12-21 | 2018-06-29 | 九阳股份有限公司 | A kind of kitchen ventilator flexible filter screen renews control method and kitchen ventilator automatically |
| CN108224515B (en) * | 2016-12-21 | 2019-12-06 | 九阳股份有限公司 | Automatic renewing control method for flexible filter screen of range hood and range hood |
| CN106679084A (en) * | 2016-12-27 | 2017-05-17 | 江苏中科睿赛污染控制工程有限公司 | Filtering net replacement reminding method for fresh air system |
| CN106679084B (en) * | 2016-12-27 | 2019-09-10 | 江苏中科睿赛污染控制工程有限公司 | A kind of method of the strainer prompt replacement of fresh air system |
| CN107562998A (en) * | 2017-07-31 | 2018-01-09 | 广东美的环境电器制造有限公司 | Decision method, decision-making system and the computer equipment in filter screen life-span |
| CN107562998B (en) * | 2017-07-31 | 2021-07-13 | 广东美的环境电器制造有限公司 | Method and system for judging service life of filter screen and computer equipment |
| CN113080792B (en) * | 2017-08-17 | 2023-02-21 | 追觅创新科技(苏州)有限公司 | Sweeping robot and working scene judgment method thereof |
| CN113080792A (en) * | 2017-08-17 | 2021-07-09 | 追创科技(苏州)有限公司 | Sweeping robot and working scene judgment method thereof |
| CN107606750A (en) * | 2017-09-16 | 2018-01-19 | 青岛海尔空调器有限总公司 | The method and device that air conditioning purge filter element replacing is reminded |
| CN107606750B (en) * | 2017-09-16 | 2020-08-25 | 青岛海尔空调器有限总公司 | Method and device for reminding replacement of air conditioner purification filter element |
| CN108421337A (en) * | 2018-02-11 | 2018-08-21 | 广东美的环境电器制造有限公司 | A kind of strainer service life determines method, air purifier and computer storage media |
| CN108832852B (en) * | 2018-06-21 | 2021-11-23 | 广东美的环境电器制造有限公司 | Interference control method, device, purifying equipment and computer readable storage medium |
| CN108832852A (en) * | 2018-06-21 | 2018-11-16 | 广东美的环境电器制造有限公司 | Interference control method, device, cleaning equipment and computer readable storage medium |
| CN111248812A (en) * | 2018-12-03 | 2020-06-09 | 添可智能科技有限公司 | Dust collector filter screen replacement reminding method and system and dust collector |
| CN111750510A (en) * | 2019-03-29 | 2020-10-09 | 松下电器研究开发(苏州)有限公司 | Control device and control method for air conditioner |
| CN111750510B (en) * | 2019-03-29 | 2022-06-14 | 松下电器研究开发(苏州)有限公司 | Control device and control method for air conditioner |
| CN111272628A (en) * | 2020-02-17 | 2020-06-12 | 海信（山东）空调有限公司 | Air purification equipment and filter screen service life detection method and detection device thereof |
| CN111272628B (en) * | 2020-02-17 | 2023-02-24 | 海信空调有限公司 | Air purification equipment and filter screen service life detection method and detection device thereof |
| CN112443940A (en) * | 2020-10-21 | 2021-03-05 | 珠海格力电器股份有限公司 | Air conditioner indoor unit, measurement and control method, measurement and control system, air conditioner and storage medium |
| CN114543260A (en) * | 2022-03-25 | 2022-05-27 | 珠海格力电器股份有限公司 | Filter screen state detection method and device, storage medium and air purifier |
| WO2023179033A1 (en) * | 2022-03-25 | 2023-09-28 | 珠海格力电器股份有限公司 | Detection method for state of filtering screen, apparatus, storage medium, and air purifier |
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