CN114001419A - Filter screen service life detection method and device, air conditioning equipment and storage medium - Google Patents
Filter screen service life detection method and device, air conditioning equipment and storage medium Download PDFInfo
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- CN114001419A CN114001419A CN202111241247.9A CN202111241247A CN114001419A CN 114001419 A CN114001419 A CN 114001419A CN 202111241247 A CN202111241247 A CN 202111241247A CN 114001419 A CN114001419 A CN 114001419A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 50
- 238000001514 detection method Methods 0.000 title claims description 19
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000004891 communication Methods 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims description 70
- 238000013507 mapping Methods 0.000 claims description 58
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 3
- 239000003570 air Substances 0.000 description 81
- 238000012423 maintenance Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000002427 irreversible effect Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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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
- F24F7/00—Ventilation
- F24F7/003—Ventilation in combination with air cleaning
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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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/30—Velocity
-
- 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
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
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- Filtering Of Dispersed Particles In Gases (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present disclosure relates to a method and an apparatus for detecting the lifetime of a filter screen, an air conditioning device and a storage medium, wherein the method is applied to a controller of the air conditioning device, the air conditioning device further comprises a PM2.5 sensor in communication connection with the controller, the air conditioning device comprises an air inlet channel, a fan and the filter screen are arranged in the air inlet channel, and the method comprises the following steps: acquiring a PM2.5 value in the air inlet channel through the PM2.5 sensor; acquiring the fan rotating speed of the fan; determining the remaining service time of the filter screen according to the PM2.5 value, the rotating speed of the fan and the diameter of a pre-stored air inlet channel; and generating prompt information for representing the residual service time according to the residual service time.
Description
Technical Field
The disclosure relates to the technical field of air conditioning equipment, in particular to a method and a device for detecting service life of a filter screen, air conditioning equipment and a storage medium.
Background
Air conditioning equipment such as a fresh air machine and an air conditioner can adjust parameters such as temperature, humidity and carbon dioxide concentration of an indoor environment, and the parameters are related to air quality or comfort, so that the air conditioning equipment becomes an electric appliance which is unavailable in life. Air conditioner adjusting device can enter into indoorly from outdoor introduction new trend to accomplish the renewal of room air, improve the new freshness of room air, the new trend gets into indoor in-process and can carry some impurity, consequently need set up the filter screen in the inlet air duct and filter impurity. The filter screen can be worn in the use process, so that maintenance is needed, but the service life of the filter screen in the related technology can not be accurately detected, so that the maintenance is often untimely, the filtering effect of the filter screen is poor, and even irreversible damage is caused.
Disclosure of Invention
In order to overcome the problems in the related art, embodiments of the present disclosure provide a method and an apparatus for detecting a lifetime of a filter screen, an air conditioning device, and a storage medium, so as to solve the defects in the related art.
According to a first aspect of the embodiments of the present disclosure, a method for detecting a service life of a filter screen is provided, which is applied to a controller of an air conditioning device, the air conditioning device further includes a PM2.5 sensor in communication connection with the controller, the air conditioning device includes an air inlet channel, and a fan and the filter screen are disposed in the air inlet channel; the method comprises the following steps:
acquiring a PM2.5 value in the air inlet channel through the PM2.5 sensor;
acquiring the fan rotating speed of the fan;
determining the remaining service time of the filter screen according to the PM2.5 value, the rotating speed of the fan and the diameter of a pre-stored air inlet channel;
and generating prompt information for representing the residual service time according to the residual service time.
In one embodiment, the air conditioning unit further comprises a fan speed sensor in communicative connection with the controller;
obtain the fan rotational speed of fan includes:
and acquiring the fan rotating speed of the fan through the fan rotating speed sensor.
In one embodiment, the obtaining the fan speed of the fan includes:
acquiring a rotating speed feedback signal of the fan, and determining the rotating speed of the fan according to the rotating speed feedback signal; or the like, or, alternatively,
and obtaining the counter electromotive force of the fan, and determining the rotating speed of the fan according to the counter electromotive force and a first mapping relation, wherein the first mapping relation is used for representing the mapping relation between the rotating speed of the fan and the counter electromotive force.
In one embodiment, the determining the remaining service time of the filter screen according to the PM2.5 value, the fan speed and the pre-stored diameter of the air inlet channel includes:
acquiring the current filtering efficiency of the filter screen;
and determining the remaining service time of the filter screen according to the PM2.5 value, the rotating speed of the fan, the diameter of the air inlet channel and the current filtering efficiency.
In one embodiment, after determining the remaining usage time of the filter screen, the method further includes:
determining a first filtering efficiency of the filter screen according to the remaining service time of the filter screen and a preset second mapping relation, wherein the second mapping relation is used for representing the mapping relation between the remaining service time and the filtering efficiency;
updating the current filtering efficiency to the first filtering efficiency if the first filtering efficiency is different from the current filtering efficiency.
In one embodiment, the determining the remaining service time of the filter screen according to the PM2.5 value, the fan speed and the pre-stored diameter of the air inlet channel includes:
determining the equivalent service time of the filter screen according to the PM2.5 value, the rotating speed of the fan and the diameter of the air inlet channel;
and determining the residual service time of the filter screen according to the theoretical service life of the filter screen and the equivalent service time.
In one embodiment, the generating, according to the remaining usage time, prompt information for characterizing the remaining usage time includes:
determining a prompt level according to the remaining service time and a preset third mapping relation, wherein the third mapping relation is used for representing the mapping relation between the remaining service time and the prompt level;
and generating prompt information corresponding to the prompt level.
In one embodiment, further comprising:
and forbidding the fan to start under the condition that the residual service time is less than or equal to a preset time threshold.
According to a second aspect of the embodiments of the present disclosure, there is provided a filter screen life detection apparatus, which is applied to a controller of an air conditioning device, the air conditioning device further includes a PM2.5 sensor in communication connection with the controller, the air conditioning device includes an air inlet channel, and a fan and the filter screen are arranged in the air inlet channel; the device comprises:
the first acquisition module is used for acquiring a PM2.5 value in the air inlet channel through the PM2.5 sensor;
the second acquisition module is used for acquiring the fan rotating speed of the fan;
the time determining module is used for determining the remaining service time of the filter screen according to the PM2.5 value, the rotating speed of the fan and the diameter of a pre-stored air inlet channel;
and the prompt module is used for generating prompt information for representing the residual service time according to the residual service time.
In one embodiment, the air conditioning unit further comprises a fan speed sensor in communicative connection with the controller;
the second obtaining module is configured to:
and acquiring the fan rotating speed of the fan through the fan rotating speed sensor.
In one embodiment, the second obtaining module is configured to:
acquiring a rotating speed feedback signal of the fan, and determining the rotating speed of the fan according to the rotating speed feedback signal; or the like, or, alternatively,
and obtaining the counter electromotive force of the fan, and determining the rotating speed of the fan according to the counter electromotive force and a first mapping relation, wherein the first mapping relation is used for representing the mapping relation between the rotating speed of the fan and the counter electromotive force.
In one embodiment, the time determination module comprises:
the efficiency acquisition unit is used for acquiring the current filtering efficiency of the filter screen;
and the first time determining unit is used for determining the remaining service time of the filter screen according to the PM2.5 value, the rotating speed of the fan, the diameter of the air inlet channel and the current filtering efficiency.
In one embodiment, further comprising an efficiency update module, the efficiency update module comprising:
the efficiency determination unit is used for determining first filtering efficiency of the filter screen according to the remaining service time of the filter screen and a preset second mapping relation after determining the remaining service time of the filter screen, wherein the second mapping relation is used for representing the mapping relation between the remaining service time and the filtering efficiency;
an efficiency updating unit, configured to update the current filtering efficiency to the first filtering efficiency when the first filtering efficiency is different from the current filtering efficiency.
In one embodiment, the time determination module comprises:
the second time determination unit is used for determining the equivalent service time of the filter screen according to the PM2.5 value, the rotating speed of the fan and the diameter of the air inlet channel;
and the third time determining unit is used for determining the residual service time of the filter screen according to the theoretical service life of the filter screen and the equivalent service time.
In one embodiment, the prompting module includes:
the grade determining unit is used for determining a prompt grade according to the residual service time and a preset third mapping relation, wherein the third mapping relation is used for representing the mapping relation between the residual service time and the prompt grade;
and the prompting unit is used for generating prompting information corresponding to the prompting level.
In one embodiment, the system further comprises a protection module for:
and forbidding the fan to start under the condition that the residual service time is less than or equal to a preset time threshold.
According to a third aspect of the embodiments of the present disclosure, there is provided an air conditioning apparatus including: the fresh air component is used for introducing outdoor fresh air into a room, an air inlet channel is arranged in the fresh air component, the filter screen is installed in the air inlet channel, and a fan is also arranged in the air inlet channel; the PM2.5 sensor is arranged in the air inlet channel and is used for collecting a PM2.5 value in the air inlet channel; the fan rotating speed sensor is electrically connected with the fan and used for collecting the fan rotating speed of the fan; a controller in communication with the PM2.5 sensor and the fan speed sensor, respectively, the controller comprising a memory for storing computer instructions executable on the processor and a processor for performing the computer instructions based on the filter screen life detection method of any of the first aspect.
In one embodiment, the PM2.5 sensor is located upstream of the filter screen;
the filter screen is arranged at the upstream of the fan.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of the first aspect.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
according to the method, the PM2.5 value in the air inlet channel is obtained through the PM2.5 sensor, the rotating speed of the fan is obtained, the remaining service time of the filter screen is determined according to the PM2.5 value, the rotating speed of the fan and the diameter of the pre-stored air inlet channel, and finally prompt information used for representing the remaining service time is generated according to the remaining service time. The prompt message can prompt the residual service time of the filter screen of the user, so that the user can correspondingly maintain the filter screen according to the residual service time, such as cleaning and the like, thereby avoiding the problem that the maintenance is untimely due to the fact that the service life of the filter screen cannot be accurately detected, and the residual service time of the filter screen is determined scientifically and reasonably by considering various factors, so that the determined residual service time is accurate and reasonable, thereby ensuring the timely and accurate maintenance of the filter screen, improving the filtering effect of the filter screen, and avoiding the occurrence of irreversible damage and the like.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a flow chart illustrating a method of filter screen life detection in accordance with an exemplary embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a filter screen life detection apparatus according to an exemplary embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In a first aspect, at least one embodiment of the present disclosure provides a method for detecting a lifetime of a filter screen, please refer to fig. 1, which illustrates a flow of the method, including step S101 and step S102.
The method for detecting the service life of the filter screen is applied to controllers of air conditioning equipment such as an air conditioner and a fresh air fan, wherein the controllers can be main control boards of the air conditioning equipment or special MCU (micro controller Unit) for the method. Air conditioning equipment still including respectively with controller communication connection's PM2.5 sensor and fan speed sensor, air conditioning equipment can have inlet air channel, and inlet air channel's one end is towards outdoor environment, and the other end is towards indoor environment, therefore inlet air channel can follow outdoor to indoor introduction new trend. Can set up fan and filter screen in the inlet air duct, the air current in the inlet air duct can be driven to the fan to form outdoor fresh air flow to indoor flow, the filter screen can filter the impurity in the fresh air flow. Along with the live time extension of filter screen, shutoff, damaged scheduling problem can appear in the filter screen, and the effect of worrying and efficiency all can descend, and then influence user's new trend and experience.
In step S101, a PM2.5 value in the air intake channel is obtained through the PM2.5 sensor.
The PM2.5 value refers to the concentration of dust or fly ash in the ambient air having a diameter of less than or equal to 2.5 μm. And the PM2.5 value in the air inlet channel is obtained in real time or according to a certain frequency.
A PM2.5 sensor can be arranged in the air inlet channel and used for detecting a PM2.5 value in the air inlet channel. Preferably, the PM2.5 sensor is disposed outside the filter screen, that is, the PM2.5 sensor is disposed upstream of the filter screen in the air intake direction of the air intake passage (i.e., the direction from the end communicating with the outdoor environment to the end communicating with the indoor environment). Based on this, the step can acquire the PM2.5 value collected by the PM2.5 sensor. PM2.5 value in the inlet air channel can be obtained in real time through the PM2.5 sensor, and the method is accurate and reliable.
In step S102, a fan rotation speed of the air conditioning device is acquired.
Wherein, air conditioning equipment is equipped with the fan, and the fan can form the air current through rotating in inlet channel to can make outdoor air pass through inlet channel and get into indoorly, form the new trend. The rotational speed of fan can influence the speed of air current in the inlet air duct, and then influences the wearing and tearing of filter screen etc. and the rotational speed of fan can also exert an influence to the intake in the certain time moreover.
And the PM2.5 value in the air inlet channel is obtained in real time or according to a certain frequency.
In one example, the air conditioning equipment further comprises a fan speed sensor in communication connection with the controller, so that the fan speed of the fan can be acquired through the fan speed sensor in this step. The fan of the air conditioning equipment can be set by the main control board of the air conditioning equipment, for example, the main control board is provided with a special module for controlling the rotating speed of the fan, and a fan rotating speed sensor can be arranged on a communication line between the main control board and the fan, so that the fan rotating speed sensor can acquire a control instruction of the main control board to the rotating speed of the fan in real time, and the rotating speed of the fan can be acquired to the fan rotating speed sensor.
In another example, in this step, a rotational speed feedback signal of the fan may be obtained, and the rotational speed of the fan is determined according to the rotational speed feedback signal, where the rotational speed feedback signal carries the rotational speed of the fan; or acquiring the counter electromotive force of the fan, and determining the fan rotating speed according to the counter electromotive force and a first mapping relation, wherein the first mapping relation is used for representing the mapping relation between the fan rotating speed and the counter electromotive force, namely different counter electromotive forces correspond to different fan rotating speeds.
In step S103, the remaining service time of the filter screen is determined according to the PM2.5 value, the fan speed, and the pre-stored diameter of the air intake channel.
The remaining service time of the filter screen refers to the time from the distance to the theoretical life of the filter screen. The theoretical life of the filter screen can be indicated as the scrapping time of the filter screen in a standard test environment, and the corresponding filter screen maintenance measure is to replace a new filter screen; the theoretical life of the filter screen can also refer to the cleaning time of the filter screen in a standard test environment, and the corresponding filter screen maintenance measure is to clean the filter screen.
The remaining service time of the filter screen can be determined in real time or according to a certain frequency.
In one example, the equivalent service time of the filter screen can be determined according to the PM2.5 value, the rotating speed of the fan and the diameter of the air inlet channel; and determining the residual service time of the filter screen according to the theoretical service life of the filter screen and the equivalent service time.
The equivalent service time refers to the service time of the service condition of the filter screen under the service condition (namely, the standard test environment) corresponding to the theoretical service life, so that after the equivalent service time is determined, the equivalent service time can be subtracted from the theoretical service life to obtain the remaining service time of the filter screen. It should be noted that the remaining service time of the filter screen also refers to the remaining service time under the service condition corresponding to the theoretical life. Optionally, the remaining service life may also be used to represent the remaining proportion of the theoretical life, for example, the theoretical life is 2000 hours, and the remaining service life is 1000 hours, which may be expressed as 50% of the theoretical life.
Optionally, when the fan is turned on, the equivalent service time T may be calculated according to the following equationuAnd (4) performing accumulative calculation:
wherein, XtIs the PM2.5 value at the time t, alpha is the PM2.5 factor under the standard test environment, StFan speed at time t, DtIs the diameter of the air inlet channel, beta is the air volume factor under the standard test environment, and delta is the engineering experience factor.
In step S104, according to the remaining usage time, prompt information for representing the remaining usage time is generated.
The reminder information may include a variety of forms. For example, a display screen of the air conditioning equipment displays prompt information consisting of words and/or pictures; for another example, a warning light of the air conditioning equipment flashes or emits a corresponding warning light; for another example, a buzzer in the air conditioning unit sounds a beep; for another example, the air conditioning device sends the prompt information to a terminal device such as a mobile phone through the communication module, so that the terminal device prompts the user in a preset manner, wherein the communication module may be a bluetooth module, a wireless communication (WiFi) module, or the like.
Optionally, first, determining a prompt level according to the remaining usage time and a preset third mapping relationship, where the third mapping relationship is used to represent a mapping relationship between the remaining usage time and the prompt level; and then, generating prompt information corresponding to the prompt level.
In one example, when the remaining service life is 50% of the theoretical life, the corresponding prompt level is one level; when the residual service time is 20% of the theoretical service life, the corresponding prompt level is two levels; when the residual service life is 5% of the theoretical service life, the corresponding prompt level is three levels. The higher the level is, the more obvious and more frequent the prompt information is, for example, when the prompt level is one level, the display screen displays the prompt information, the buzzer buzzes at the lowest volume, and after receiving a cancel instruction of a user, the prompt information is not displayed any more and the buzzing stops; when the prompt level is the second level, the display screen displays prompt information, the buzzer buzzes with medium volume, the prompt lamp flickers, and after a cancel instruction of a user is received, the prompt information is not displayed, the buzzing stops, and the prompt lamp stops flickering; when the prompt level is at the second level, the display screen displays prompt information, the buzzer buzzes with medium volume, the prompt lamp flickers, the prompt information is sent to the mobile phone, after a cancel instruction of the user is received, the various prompts are stopped, and after a preset time (for example, 3 days), if the prompt level is changed, the user is continuously prompted in the various prompt modes.
In addition, the blower may be prohibited from being started when the remaining usage time is less than or equal to a preset time threshold. For example, the time threshold may be 2% of the theoretical lifetime.
After the fan is forbidden to be started, if the fan is running at the moment, the fan stops running and does not run after receiving a starting instruction; after the fan is forbidden to be started, if the fan does not operate at the moment, the fan does not operate after receiving a starting instruction.
By forbidding the starting of the fan, the residual service time of the filter screen is not worn when being close to the theoretical service life, thereby avoiding the occurrence of irreversible damage, protecting the quality of the filter screen and prolonging the service life of the filter screen.
According to the method, the PM2.5 value in the air inlet channel is obtained through the PM2.5 sensor, the rotating speed of the fan is obtained, the remaining service time of the filter screen is determined according to the PM2.5 value, the rotating speed of the fan and the diameter of the pre-stored air inlet channel, and finally prompt information used for representing the remaining service time is generated according to the remaining service time. The prompt message can prompt the residual service time of the filter screen of the user, so that the user can correspondingly maintain the filter screen according to the residual service time, such as cleaning and the like, thereby avoiding the problem that the maintenance is untimely due to the fact that the service life of the filter screen cannot be accurately detected, and the residual service time of the filter screen is determined scientifically and reasonably by considering various factors, so that the determined residual service time is accurate and reasonable, thereby ensuring the timely and accurate maintenance of the filter screen, improving the filtering effect of the filter screen, and avoiding the occurrence of irreversible damage and the like.
In some embodiments of the present disclosure, the remaining service time of the filter screen may be determined according to the PM2.5 value, the fan speed, and a pre-stored diameter of the air inlet channel in the following manner: firstly, acquiring the current filtering efficiency of the filter screen; and then, determining the remaining service time of the filter screen according to the PM2.5 value, the rotating speed of the fan, the diameter of the air inlet channel and the current filtering efficiency.
Wherein, the current filtration efficiency of filter screen can influence the air flow rate in the inlet air duct, can influence the intake etc. consequently has certain influence to surplus live time, on PM2.5 value, fan rotational speed and inlet air duct's diameter basis, further combines the current filtration efficiency of filter screen, can make the degree of accuracy of the surplus live time of confirming further improve, makes maintenance work more accurate timely.
In one example, when the fan is turned on, the remaining usage time of the filter screen may be accumulated according to the following equation, and the remaining usage time of the filter screen may be stored once every time a period of time elapses.
Wherein T is the residual service time of the filter screen, T0: theoretical life of filter screen, X, in standard test environmenttIs the PM2.5 value at the time t, alpha is the PM2.5 factor under the standard test environment, StFan speed at time t, DtThe diameter of the air inlet channel is beta, the air volume factor under a standard test environment is beta, theta is the current filtering efficiency at the moment t, and delta is an engineering experience factor.
The current filtration efficiency of the filter screen may be initialized to 100%. Correspondingly, after the remaining service time of the filter screen is determined, the first filtering efficiency of the filter screen can be determined according to the remaining service time of the filter screen and a preset second mapping relation, wherein the second mapping relation is used for representing the mapping relation between the remaining service time and the filtering efficiency; and updating the current filtering efficiency to the first filtering efficiency when the first filtering efficiency is different from the current filtering efficiency. The second mapping relationship may be in the form of a mapping table or a mapping curve, wherein different filtering efficiencies correspond to different remaining usage times.
The current filtering efficiency can be updated according to the above mode after the residual service time of the filter screen is stored every time, so that the accuracy and reliability of the current filtering efficiency can be ensured, and the sequentially determined residual service time is accurate and reliable.
In an example of this embodiment, the current filtering efficiency of the filter screen is initialized to 100%, and then a second mapping relationship is preset, in which when the remaining service life of the filter screen is 75% -100% (excluding 75%) of the theoretical life, the filtering efficiency of the filter screen is 100%, when the remaining service life of the filter screen is 50% -75% (excluding 50%) of the theoretical life, the filtering efficiency of the filter screen is 75%, when the remaining service life of the filter screen is 25% -50% (excluding 25%) of the theoretical life, the filtering efficiency of the filter screen is 50%, and when the remaining service life of the filter screen is 0% -25% of the theoretical life, the filtering efficiency of the filter screen is 25%.
In this example, when the filter screen is initially used, the current filtering efficiency is 100%, during the operation of the air conditioning equipment, the remaining service time of the filter screen is determined in real time in the manner of this embodiment (i.e., the remaining service time of the filter screen is determined according to the PM2.5 value, the fan rotation speed, the diameter of the air intake channel, and the current filtering efficiency), and then the remaining service time of the filter screen is determined each time and compared with 75% of the theoretical life, if the remaining service time of the filter screen is higher than 75% of the theoretical life, the current filtering efficiency is unchanged, and if the remaining service time of the filter screen is lower than or equal to 75% of the theoretical life, the current filtering efficiency is updated to 75%; and then subsequently determining that the current filtering efficiency used when the residual service life of the filter screen is 75%, and similarly, updating the current filtering efficiency to 50% when the residual service life of the filter screen is less than or equal to 50% of the theoretical life, and updating the current filtering efficiency to 25% when the residual service life of the filter screen is less than or equal to 25% of the theoretical life.
According to a second aspect of the embodiments of the present disclosure, there is provided a filter screen life detection apparatus, which is applied to a controller of an air conditioning device, the air conditioning device further includes a PM2.5 sensor in communication connection with the controller, the air conditioning device includes an air inlet channel, and a fan and the filter screen are arranged in the air inlet channel; referring to fig. 2, the structure of the apparatus is shown, including:
the first acquisition module 201 is configured to acquire a PM2.5 value in the air intake channel through the PM2.5 sensor;
the second obtaining module 202 is configured to obtain a fan rotation speed of the fan;
the time determining module 203 is used for determining the remaining service time of the filter screen according to the PM2.5 value, the rotating speed of the fan and the diameter of a pre-stored air inlet channel;
and the prompt module 204 is configured to generate prompt information for representing the remaining usage time according to the remaining usage time.
In some embodiments of the present disclosure, the air conditioning apparatus further comprises a fan speed sensor in communicative connection with the controller;
the second obtaining module is configured to:
and acquiring the fan rotating speed of the fan through the fan rotating speed sensor.
In some embodiments of the present disclosure, the second obtaining module is configured to:
acquiring a rotating speed feedback signal of the fan, and determining the rotating speed of the fan according to the rotating speed feedback signal; or the like, or, alternatively,
and obtaining the counter electromotive force of the fan, and determining the rotating speed of the fan according to the counter electromotive force and a first mapping relation, wherein the first mapping relation is used for representing the mapping relation between the rotating speed of the fan and the counter electromotive force.
In some embodiments of the present disclosure, the time determination module comprises:
the efficiency acquisition unit is used for acquiring the current filtering efficiency of the filter screen;
and the first time determining unit is used for determining the remaining service time of the filter screen according to the PM2.5 value, the rotating speed of the fan, the diameter of the air inlet channel and the current filtering efficiency.
In some embodiments of the present disclosure, further comprising an efficiency update module, the efficiency update module comprising:
the efficiency determination unit is used for determining first filtering efficiency of the filter screen according to the remaining service time of the filter screen and a preset second mapping relation after determining the remaining service time of the filter screen, wherein the second mapping relation is used for representing the mapping relation between the remaining service time and the filtering efficiency;
an efficiency updating unit, configured to update the current filtering efficiency to the first filtering efficiency when the first filtering efficiency is different from the current filtering efficiency.
In some embodiments of the present disclosure, the time determination module comprises:
the second time determination unit is used for determining the equivalent service time of the filter screen according to the PM2.5 value, the rotating speed of the fan and the diameter of the air inlet channel;
and the third time determining unit is used for determining the residual service time of the filter screen according to the theoretical service life of the filter screen and the equivalent service time.
In some embodiments of the disclosure, the prompt module comprises:
the grade determining unit is used for determining a prompt grade according to the residual service time and a preset third mapping relation, wherein the third mapping relation is used for representing the mapping relation between the residual service time and the prompt grade;
and the prompting unit is used for generating prompting information corresponding to the prompting level.
In some embodiments of the present disclosure, a protection module is further included for:
and forbidding the fan to start under the condition that the residual service time is less than or equal to a preset time threshold.
According to a third aspect of the embodiments of the present disclosure, an air conditioning device is provided, in which a fresh air component is used for introducing fresh air from the outside into a room, an air intake channel is arranged in the fresh air component, a filter screen is installed in the air intake channel, and a fan is further arranged in the air intake channel; the PM2.5 sensor is arranged in the air inlet channel and is used for collecting a PM2.5 value in the air inlet channel; the fan rotating speed sensor is electrically connected with the fan and used for collecting the fan rotating speed of the fan; a controller in communication with the PM2.5 sensor and the fan speed sensor, respectively, the controller comprising a memory for storing computer instructions executable on the processor and a processor for performing the computer instructions based on the filter screen life detection method of any of the first aspect.
In some embodiments of the present disclosure, the PM2.5 sensor is disposed upstream of the filter screen; the filter screen is arranged at the upstream of the fan.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of the first aspect.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (19)
1. The utility model provides a filter screen life-span detection method, its characterized in that is applied to air conditioning equipment's controller, air conditioning equipment still include with controller communication connection's PM2.5 sensor, air conditioning equipment includes inlet air duct, be provided with the fan in the inlet air duct with the filter screen, the method includes:
acquiring a PM2.5 value in the air inlet channel through the PM2.5 sensor;
acquiring the fan rotating speed of the fan;
determining the remaining service time of the filter screen according to the PM2.5 value, the rotating speed of the fan and the diameter of a pre-stored air inlet channel;
and generating prompt information for representing the residual service time according to the residual service time.
2. The filter screen life detection method according to claim 1, wherein the air conditioning equipment further comprises a fan speed sensor in communication with the controller;
obtain the fan rotational speed of fan includes:
and acquiring the fan rotating speed of the fan through the fan rotating speed sensor.
3. The method for detecting the service life of the filter screen according to claim 1, wherein the obtaining the fan speed of the fan comprises:
acquiring a rotating speed feedback signal of the fan, and determining the rotating speed of the fan according to the rotating speed feedback signal; or the like, or, alternatively,
and obtaining the counter electromotive force of the fan, and determining the rotating speed of the fan according to the counter electromotive force and a first mapping relation, wherein the first mapping relation is used for representing the mapping relation between the rotating speed of the fan and the counter electromotive force.
4. The method for detecting the service life of the filter screen according to claim 1, wherein the step of determining the remaining service life of the filter screen according to the PM2.5 value, the rotating speed of the fan and the diameter of a pre-stored air inlet channel comprises the following steps:
acquiring the current filtering efficiency of the filter screen;
and determining the remaining service time of the filter screen according to the PM2.5 value, the rotating speed of the fan, the diameter of the air inlet channel and the current filtering efficiency.
5. The method for detecting the service life of the filter screen according to claim 4, further comprising, after determining the remaining service life of the filter screen:
determining a first filtering efficiency of the filter screen according to the remaining service time of the filter screen and a preset second mapping relation, wherein the second mapping relation is used for representing the mapping relation between the remaining service time and the filtering efficiency;
updating the current filtering efficiency to the first filtering efficiency if the first filtering efficiency is different from the current filtering efficiency.
6. The method for detecting the service life of the filter screen according to claim 1, wherein the step of determining the remaining service life of the filter screen according to the PM2.5 value, the rotating speed of the fan and the diameter of a pre-stored air inlet channel comprises the following steps:
determining the equivalent service time of the filter screen according to the PM2.5 value, the rotating speed of the fan and the diameter of the air inlet channel;
and determining the residual service time of the filter screen according to the theoretical service life of the filter screen and the equivalent service time.
7. The method for detecting the service life of the filter screen according to claim 1, wherein the generating of the prompt information for representing the remaining service life according to the remaining service life includes:
determining a prompt level according to the remaining service time and a preset third mapping relation, wherein the third mapping relation is used for representing the mapping relation between the remaining service time and the prompt level;
and generating prompt information corresponding to the prompt level.
8. The filter screen life detection method according to claim 1 or 7, further comprising:
and forbidding the fan to start under the condition that the residual service time is less than or equal to a preset time threshold.
9. The filter screen service life detection device is characterized by being applied to a controller of air conditioning equipment, wherein the air conditioning equipment further comprises a PM2.5 sensor in communication connection with the controller, the air conditioning equipment comprises an air inlet channel, and a fan and the filter screen are arranged in the air inlet channel; the device comprises:
the first acquisition module is used for acquiring a PM2.5 value in the air inlet channel through the PM2.5 sensor;
the second acquisition module is used for acquiring the fan rotating speed of the fan;
the time determining module is used for determining the remaining service time of the filter screen according to the PM2.5 value, the rotating speed of the fan and the diameter of a pre-stored air inlet channel;
and the prompt module is used for generating prompt information for representing the residual service time according to the residual service time.
10. The filter screen life detection device of claim 9, wherein the air conditioning equipment further comprises a fan speed sensor in communication with the controller;
the second obtaining module is configured to:
and acquiring the fan rotating speed of the fan through the fan rotating speed sensor.
11. The filter screen life detection apparatus according to claim 9, wherein the second obtaining module is configured to:
acquiring a rotating speed feedback signal of the fan, and determining the rotating speed of the fan according to the rotating speed feedback signal; or the like, or, alternatively,
and obtaining the counter electromotive force of the fan, and determining the rotating speed of the fan according to the counter electromotive force and a first mapping relation, wherein the first mapping relation is used for representing the mapping relation between the rotating speed of the fan and the counter electromotive force.
12. The filter screen life detection apparatus according to claim 9, wherein the time determination module includes:
the efficiency acquisition unit is used for acquiring the current filtering efficiency of the filter screen;
and the first time determining unit is used for determining the remaining service time of the filter screen according to the PM2.5 value, the rotating speed of the fan, the diameter of the air inlet channel and the current filtering efficiency.
13. The filter screen life detection device according to claim 9, further comprising an efficiency update module, the efficiency update module comprising:
the efficiency determination unit is used for determining first filtering efficiency of the filter screen according to the remaining service time of the filter screen and a preset second mapping relation after determining the remaining service time of the filter screen, wherein the second mapping relation is used for representing the mapping relation between the remaining service time and the filtering efficiency;
an efficiency updating unit, configured to update the current filtering efficiency to the first filtering efficiency when the first filtering efficiency is different from the current filtering efficiency.
14. The filter screen life detection apparatus according to claim 9, wherein the time determination module includes:
the second time determination unit is used for determining the equivalent service time of the filter screen according to the PM2.5 value, the rotating speed of the fan and the diameter of the air inlet channel;
and the third time determining unit is used for determining the residual service time of the filter screen according to the theoretical service life of the filter screen and the equivalent service time.
15. The filter screen life detection device of claim 9, wherein the prompt module comprises:
the grade determining unit is used for determining a prompt grade according to the residual service time and a preset third mapping relation, wherein the third mapping relation is used for representing the mapping relation between the residual service time and the prompt grade;
and the prompting unit is used for generating prompting information corresponding to the prompting level.
16. The filter screen life detection device according to claim 9 or 15, further comprising a protection module configured to:
and forbidding the fan to start under the condition that the residual service time is less than or equal to a preset time threshold.
17. An air conditioning apparatus, characterized in that the air conditioning apparatus comprises:
the fresh air component is used for introducing outdoor fresh air into a room, an air inlet channel is arranged in the fresh air component, the filter screen is installed in the air inlet channel, and a fan is also arranged in the air inlet channel;
the PM2.5 sensor is arranged in the air inlet channel and is used for collecting a PM2.5 value in the air inlet channel;
the fan rotating speed sensor is electrically connected with the fan and used for collecting the fan rotating speed of the fan;
a controller in communication with the PM2.5 sensor and the fan speed sensor, respectively, the controller comprising a memory for storing computer instructions executable on a processor, and a processor for performing the method according to any of claims 1 to 8 when executing the computer instructions.
18. The air conditioning unit of claim 17 wherein the PM2.5 sensor is disposed upstream of the filter screen;
the filter screen is arranged at the upstream of the fan.
19. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method of any one of claims 1 to 8.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044685A (en) * | 2017-04-18 | 2017-08-15 | 中山市思诺得环保科技有限公司 | A kind of fresh air compensation is with purifying two-in-one air purifier |
| CN107166662A (en) * | 2017-06-05 | 2017-09-15 | 广东美的环境电器制造有限公司 | A kind of strainer filtering efficient state reminding method and air purifier |
| 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 |
| CN110612420A (en) * | 2017-05-09 | 2019-12-24 | 皇家飞利浦有限公司 | Filter life estimation |
| CN111520876A (en) * | 2020-04-27 | 2020-08-11 | 北京小米移动软件有限公司 | Automatic indoor air quality adjusting system |
| CN214406423U (en) * | 2021-02-10 | 2021-10-15 | 清华大学 | A collection system for air filter screen life-span automatic monitoring |
-
2021
- 2021-10-25 CN CN202111241247.9A patent/CN114001419A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044685A (en) * | 2017-04-18 | 2017-08-15 | 中山市思诺得环保科技有限公司 | A kind of fresh air compensation is with purifying two-in-one air purifier |
| CN110612420A (en) * | 2017-05-09 | 2019-12-24 | 皇家飞利浦有限公司 | Filter life estimation |
| CN107166662A (en) * | 2017-06-05 | 2017-09-15 | 广东美的环境电器制造有限公司 | A kind of strainer filtering efficient state reminding method and air purifier |
| 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 |
| CN111520876A (en) * | 2020-04-27 | 2020-08-11 | 北京小米移动软件有限公司 | Automatic indoor air quality adjusting system |
| CN214406423U (en) * | 2021-02-10 | 2021-10-15 | 清华大学 | A collection system for air filter screen life-span automatic monitoring |
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