CN114909753B - Air purifier, control method and device of air purifier - Google Patents

Air purifier, control method and device of air purifier Download PDF

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Publication number
CN114909753B
CN114909753B CN202210730085.3A CN202210730085A CN114909753B CN 114909753 B CN114909753 B CN 114909753B CN 202210730085 A CN202210730085 A CN 202210730085A CN 114909753 B CN114909753 B CN 114909753B
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dust
formaldehyde
detection data
value
initial
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CN114909753A (en
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曹艺
邓文泰
阮家俊
张子月
周炫
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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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
    • 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
    • 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
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • F24F8/95—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying specially adapted for specific purposes
    • 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
    • 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
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/66—Volatile organic compounds [VOC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Ventilation (AREA)

Abstract

The invention discloses an air purifier, a control method and a device of the air purifier, wherein the control method of the air purifier comprises the following steps: acquiring a first dust detection data set in a preset first time period; acquiring a first formaldehyde detection data set within the first time period; determining an initial air quality level over the first period of time from the first dust detection data set and the first formaldehyde detection data set; and determining the fan rotating speed of the air purifier according to the initial air quality grade. According to the method, the initial air quality grade is determined by comprehensively considering the results of dust detection and formaldehyde detection, so that the fan rotating speed of the air purifier is obtained, that is, the comprehensive quality of dust and formaldehyde is used as the control basis of the air purifier, and therefore the air quality detection rationality and the purification efficiency can be improved.

Description

Air purifier, control method and device of air purifier
Technical Field
The invention relates to the technical field of electrical equipment, in particular to an air purifier, and a control method and a control device of the air purifier.
Background
The development of technology brings much convenience to our life, but brings a certain pollution source at the same time, and the air purifier gradually enters the daily work life of people. The air purifier with single pollution source purifying capacity can not meet the demands of consumers, and the air purifier with multiple purifying means can realize the purification of multiple pollution sources is generated.
Disclosure of Invention
In view of the above, the embodiments of the present invention provide an air purifier, a control method and a control device for the air purifier, so as to control the air purifier capable of purifying various pollution sources.
The embodiment of the invention provides a control method of an air purifier, which comprises the following steps: acquiring a first dust detection data set in a preset first time period; acquiring a first formaldehyde detection data set within the first time period; determining an initial air quality level over the first period of time from the first dust detection data set and the first formaldehyde detection data set; and determining the fan rotating speed of the air purifier according to the initial air quality grade.
Specifically, the determining the initial air quality level for the first period of time from the first dust detection data set and the first formaldehyde detection data set includes: determining an initial dust quality level from a first dust detection dataset within the first period of time; determining an initial formaldehyde quality level from a first formaldehyde detection dataset within the first time period; when the difference value between the dust initial quality grade and the formaldehyde initial quality grade is larger than a preset grade threshold, taking the compromise grade of the dust initial quality grade and the formaldehyde initial quality grade as the initial air quality grade; when the difference between the dust initial quality grade and the formaldehyde initial quality grade is smaller than a grade threshold, taking the worse grade of the dust initial quality grade and the formaldehyde initial quality grade as the initial air quality grade; and when the initial dust quality grade is the same as the initial formaldehyde quality grade, taking the initial dust quality grade as the initial air quality grade.
Specifically, the determining the dust quality level according to the first dust detection data set in the first period of time includes: respectively determining the dust quality grade of each first dust detection data in the first dust detection data set in the first time period; counting the quantity of each dust quality grade, and taking the dust quality grade with the largest quantity as the initial dust quality grade; and/or determining the formaldehyde initial quality level from the first formaldehyde detection dataset over the first period of time comprises: respectively determining the formaldehyde quality grade of each first formaldehyde detection data in the first formaldehyde detection data set in the first time period; counting the number of each formaldehyde quality grade, and taking the formaldehyde quality grade with the largest number as the initial formaldehyde quality grade.
Further, after determining the fan speed of the air purifier according to the initial air quality level, the control method of the air purifier further comprises the following steps: acquiring a second detection data set in a preset second time period, wherein the second detection data set comprises dust detection data; selecting a dust maximum value and a dust minimum value in the first dust detection data set; adjusting the rotating speed of the fan according to the second detection data set, the dust maximum value and the dust minimum value; or, acquiring a third detection data set in a preset second time period, wherein the third detection data set comprises formaldehyde detection data; selecting a maximum formaldehyde value and a minimum formaldehyde value in the first formaldehyde detection data set; adjusting the rotating speed of the fan according to the third detection data set, the maximum formaldehyde value and the minimum formaldehyde value; or, acquiring a fourth detection data set in a preset second time period, wherein the fourth detection data set comprises the dust detection data and the formaldehyde detection data; and adjusting the rotating speed of the fan according to the fourth detection data set, the dust maximum value, the dust minimum value, the formaldehyde maximum value and the formaldehyde minimum value.
Specifically, adjusting the fan rotational speed according to the second detection data set, the dust maximum value, and the dust minimum value includes: judging whether the dust detection data in the second detection data set is larger than the dust maximum value or smaller than the dust minimum value; counting a first number of detection data greater than the dust maximum value and a second number of detection data less than the dust minimum value; adjusting the rotating speed of the fan according to the first dust comparison data, wherein the first dust comparison data comprises a first quantity and/or a second quantity; or, adjusting the fan speed according to the third detection data set, the formaldehyde maximum value and the formaldehyde minimum value includes: judging whether the formaldehyde detection data in the third detection data set is larger than the maximum formaldehyde value and smaller than the minimum formaldehyde value; counting a third number of detection data greater than the maximum formaldehyde value and a fourth number of detection data less than the minimum formaldehyde value; adjusting the rotating speed of the fan according to the first formaldehyde comparison data, wherein the first formaldehyde comparison data comprises a third quantity and/or a fourth quantity; or, said adjusting said fan speed according to said fourth detection dataset, said dust maximum, said dust minimum, said formaldehyde maximum and said formaldehyde minimum comprises: determining whether the detection data belongs to the dust detection data or the formaldehyde detection data for any detection data in the fourth detection data set; when the detection data belongs to the dust detection data, judging whether the detection data is larger than the dust maximum value or smaller than the dust minimum value; when the detection data belong to the formaldehyde detection data, judging whether the detection data are larger than the maximum formaldehyde value and smaller than the minimum formaldehyde value; traversing all detection data in the fourth detection data set, and respectively counting a fifth number of detection data larger than the dust maximum value, a sixth number of detection data smaller than the dust minimum value, a seventh number of detection data larger than the formaldehyde maximum value and an eighth number of detection data smaller than the formaldehyde minimum value; and adjusting the rotating speed of the fan according to second dust comparison data and second formaldehyde comparison data, wherein the second dust comparison data comprises a fifth quantity and/or a sixth quantity, and the second formaldehyde comparison data comprises a seventh quantity and/or an eighth quantity.
Specifically, the adjusting the fan rotation speed according to the first dust comparison data includes: selecting higher values of the first quantity and the second quantity to obtain a first adjustment reference value; adjusting the rotating speed of the fan according to the first adjusting reference value; or, the adjusting the fan rotation speed according to the first formaldehyde comparison data comprises; selecting higher values of the third quantity and the fourth quantity to obtain a second adjustment reference value; adjusting the rotating speed of the fan according to the second adjusting reference value; or, the adjusting the fan rotation speed according to the second dust comparison data and the second formaldehyde comparison data includes: selecting higher values of the fifth quantity and the sixth quantity to obtain a third adjustment reference value, and determining dust change tendency corresponding to the third adjustment reference value; selecting higher values of the seventh quantity and the eighth quantity to obtain a fourth adjustment reference value; and determining a formaldehyde propensity to change corresponding to the fourth adjusted reference value; when the dust change trend is the same as the formaldehyde change trend, selecting a higher value of the third adjustment reference value and the fourth adjustment reference value to obtain a fifth adjustment reference value, and adjusting the rotating speed of the fan according to the fifth adjustment reference value.
Specifically, the adjusting the fan rotation speed according to the first adjustment reference value includes:
judging whether the first adjustment reference value is larger than a preset first threshold value or not; when the first adjustment reference value is larger than the first threshold value, judging whether the first adjustment reference value is smaller than a preset second threshold value or not; when the first adjustment reference value is smaller than the second threshold value, adjusting the rotating speed of the fan by a preset first speed value; when the first adjustment reference value is greater than or equal to the second threshold value, adjusting the initial air quality level by one level, and adjusting the fan rotating speed to correspond to the adjusted initial air quality level; or, the adjusting the fan rotation speed according to the second adjustment reference value includes: judging whether the second adjustment reference value is larger than a preset third threshold value or not; when the second adjustment reference value is larger than the third threshold value, judging whether the second adjustment reference value is smaller than a preset fourth threshold value or not; when the second adjustment reference value is smaller than the fourth threshold value, adjusting the fan rotating speed by a preset second speed value; when the second adjustment reference value is greater than or equal to the fourth threshold value, adjusting the initial air quality level by one level, and adjusting the fan rotating speed to correspond to the adjusted initial air quality level; or, the adjusting the fan rotation speed according to the fifth adjustment reference value includes: judging whether the fifth adjustment reference value is larger than a preset fifth threshold value or not; when the fifth adjustment reference value is larger than the fifth threshold value, judging whether the fifth adjustment reference value is smaller than a preset sixth threshold value or not; when the fifth adjustment reference value is smaller than the sixth threshold value, adjusting the fan rotating speed by a preset third speed value; and when the fifth adjustment reference value is greater than or equal to the sixth threshold value, adjusting the initial air quality level by one level, and adjusting the fan rotating speed to correspond to the adjusted initial air quality level.
The embodiment of the invention also provides a control device of the air purifier, which comprises a first acquisition module, a second acquisition module, a processing module and an adjusting module, wherein the first acquisition module is used for acquiring a first dust detection data set in a preset first time period; the second acquisition module is used for acquiring a first formaldehyde detection data set in the first time period; the processing module is configured to determine an initial air quality level over the first time period from the first dust detection data set and the first formaldehyde detection data set; the adjusting module is used for determining the fan rotating speed of the air purifier according to the initial air quality grade.
The embodiment of the invention also provides an air purifier, which comprises a dust sensor, a formaldehyde sensor and a controller, wherein the dust sensor is used for acquiring dust detection data; the formaldehyde sensor is used for acquiring formaldehyde detection data; the dust sensor, the formaldehyde sensor and the controller are in communication connection with each other, computer instructions are stored in the controller, and the controller executes the computer instructions, so that the control method of the air purifier is executed.
The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores computer instructions for causing a computer to execute the control method of the air purifier.
According to the air purifier, the control method and the control device of the air purifier, provided by the embodiment of the invention, the initial air quality level is determined by comprehensively considering the results of dust detection and formaldehyde detection, and then the fan rotating speed of the air purifier is obtained, that is, the comprehensive quality of dust and formaldehyde is used as the control basis of the air purifier, so that the air quality detection rationality and the purification efficiency can be improved.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and should not be construed as limiting the invention in any way, in which:
FIG. 1 is a schematic flow chart of a control method of an air purifier in embodiment 1 of the present invention;
FIG. 2 is a flow chart of an example of a control method of an air purifier according to embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of an air purifier control device according to embodiment 2 of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Example 1
The embodiment 1 of the invention provides a control method of an air purifier. As shown in fig. 1, the control method of the air purifier according to embodiment 1 of the present invention includes the steps of:
s101: a first dust detection dataset is acquired over a preset first period of time.
Specifically, a first dust detection data set over a first period of time may be acquired by a dust sensor.
S102: a first formaldehyde detection dataset is acquired over the first period of time.
Specifically, a first formaldehyde detection dataset may be obtained over a first period of time by a formaldehyde sensor.
Specifically, the first time period may be determined according to the performances of the dust sensor and the formaldehyde sensor, and the first time period may be 10 to 30 seconds, for example. One or more dust detection data, one or more formaldehyde detection data may be acquired over a first period of time. That is, the first dust detection data set includes one or more dust detection data, and the first formaldehyde detection data set includes one or more formaldehyde detection data.
S103: an initial air quality level over the first period of time is determined from the first dust detection data set and the first formaldehyde detection data set.
Specifically, the determining the initial air quality level in the first period according to the first dust detection data set and the first formaldehyde detection data set may adopt the following technical scheme: determining an initial dust quality level from a first dust detection dataset within the first period of time; determining an initial formaldehyde quality level from a first formaldehyde detection dataset within the first time period; when the difference value between the dust initial quality grade and the formaldehyde initial quality grade is larger than a preset grade threshold, taking the compromise grade of the dust initial quality grade and the formaldehyde initial quality grade as the initial air quality grade; when the difference between the dust initial quality grade and the formaldehyde initial quality grade is smaller than a grade threshold, taking the worse grade of the dust initial quality grade and the formaldehyde initial quality grade as the initial air quality grade; and when the initial dust quality grade is the same as the initial formaldehyde quality grade, taking the initial dust quality grade as the initial air quality grade.
When the air quality grade is classified into three stages, if the difference between the dust initial quality grade and the formaldehyde initial quality grade is greater than or equal to 2 stages, the difference between the dust initial quality grade and the formaldehyde initial quality grade is considered to be greater, and the compromise grade is taken as the initial air quality grade; and when the difference between the initial dust quality grade and the initial formaldehyde quality grade is smaller than 2 grades, considering that the difference between the initial dust quality grade and the initial formaldehyde quality grade is smaller, and taking the worse grade of the initial dust quality grade and the initial formaldehyde quality grade as the initial air quality grade. For example, the compromise may be understood as taking the intermediate value between the initial dust quality level and the initial formaldehyde quality level, and assuming that the intermediate value between the two levels is 1, the intermediate value is taken as the initial air quality level, for example, the intermediate value is classified into three levels of good, good and bad, and when the initial dust quality level is good and the initial formaldehyde quality level is bad, the intermediate value is taken as the initial air quality level; if the intermediate value between the two levels is two, one of the two intermediate values is taken as the initial air quality level, and for example, if the two intermediate values are classified into four levels of excellent addition, excellent, good and poor, the initial dust quality level is excellent addition, and the initial formaldehyde quality level is poor, the good air quality level is taken as the initial air quality level. That is, when the intermediate value is two, the worse level of the two is taken as the initial air quality level.
More specifically, the determining the dust quality level according to the first dust detection data set in the first period of time may adopt the following technical scheme: respectively determining the dust quality grade of each first dust detection data set in the first time; counting the quantity of each dust quality grade, and taking the dust quality grade with the largest quantity as the initial dust quality grade.
More specifically, the following technical scheme may be adopted to determine the formaldehyde initial quality level according to the first formaldehyde detection data set in the first period: respectively determining the formaldehyde quality grade of each first formaldehyde detection data set in the first time; counting the number of each formaldehyde quality grade, and taking the formaldehyde quality grade with the largest number as the initial formaldehyde quality grade.
S104: and determining the fan rotating speed of the air purifier according to the initial air quality grade.
According to the control method for the air purifier, provided by the embodiment of the invention, the initial air quality grade is determined by comprehensively considering the results of dust detection and formaldehyde detection, so that the fan rotating speed of the air purifier is obtained, that is, the comprehensive quality of dust and formaldehyde is used as the control basis of the air purifier, and therefore, the air quality detection rationality and the purification efficiency can be improved.
As a first further embodiment, after determining the fan speed of the air purifier according to the initial air quality level, further comprising: acquiring a second detection data set in a preset second time period, wherein the second detection data set comprises dust detection data; selecting a dust maximum value and a dust minimum value in the first dust detection data set; and adjusting the rotating speed of the fan according to the second detection data set, the dust maximum value and the dust minimum value.
For example, the second period of time may be 5 to 20S.
That is, the fan rotational speed is adjusted based on the dust detection data. Specifically, the fan rotation speed may be adjusted according to the second detection data set, the dust maximum value and the dust minimum value by adopting the following technical scheme: judging whether the dust detection data in the second detection data set is larger than the dust maximum value or smaller than the dust minimum value; counting a first number of detection data greater than the dust maximum value and a second number of detection data less than the dust minimum value; and adjusting the rotating speed of the fan according to the first dust comparison data, wherein the first dust comparison data comprises a first quantity and/or a second quantity.
More specifically, the adjusting the rotation speed of the fan according to the first dust comparison data may adopt the following technical scheme: selecting higher values of the first quantity and the second quantity to obtain a first adjustment reference value; and adjusting the rotating speed of the fan according to the first adjusting reference value.
Wherein, the adjusting the fan rotation speed according to the first adjustment reference value includes: judging whether the first adjustment reference value is larger than a preset first threshold value or not; when the first adjustment reference value is larger than the first threshold value, judging whether the first adjustment reference value is smaller than a preset second threshold value or not; when the first adjustment reference value is smaller than the second threshold value, adjusting the rotating speed of the fan by a preset first speed value; and when the first adjustment reference value is greater than or equal to the second threshold value, adjusting the initial air quality level by one level, and adjusting the fan rotating speed to correspond to the adjusted initial air quality level.
For example, the first threshold may be 0 and the second threshold may be half the amount of dust detection data in the second detection data set.
As a second further embodiment, after determining the fan speed of the air purifier according to the initial air quality level, the method further comprises: acquiring a third detection data set in a preset second time period, wherein the third detection data set comprises formaldehyde detection data; selecting a maximum formaldehyde value and a minimum formaldehyde value in the first formaldehyde detection data set; and adjusting the rotating speed of the fan according to the third detection data set, the maximum formaldehyde value and the minimum formaldehyde value.
That is, the fan rotational speed is adjusted based on the formaldehyde detection data. Specifically, the fan rotation speed may be adjusted according to the third detection data set, the maximum formaldehyde value and the minimum formaldehyde value, which may adopt the following technical scheme: judging whether the formaldehyde detection data in the third detection data set is larger than the maximum formaldehyde value and smaller than the minimum formaldehyde value; counting a third number of detection data greater than the maximum formaldehyde value and a fourth number of detection data less than the minimum formaldehyde value; and adjusting the rotating speed of the fan according to the first formaldehyde comparison data, wherein the first formaldehyde comparison data comprises a third quantity and/or a fourth quantity.
More specifically, the adjusting the rotation speed of the fan according to the first formaldehyde comparison data may adopt the following technical scheme: selecting higher values of the third quantity and the fourth quantity to obtain a second adjustment reference value; and adjusting the rotating speed of the fan according to the second adjusting reference value.
Wherein, the adjusting the fan rotation speed according to the second adjustment reference value includes: judging whether the second adjustment reference value is larger than a preset third threshold value or not; when the second adjustment reference value is larger than the third threshold value, judging whether the second adjustment reference value is smaller than a preset fourth threshold value or not; when the second adjustment reference value is smaller than the fourth threshold value, adjusting the fan rotating speed by a preset second speed value; and when the second adjustment reference value is greater than or equal to the fourth threshold value, adjusting the initial air quality level by one level, and adjusting the fan rotating speed to correspond to the adjusted initial air quality level.
For example, the third threshold may be 0 and the fourth threshold may be half the amount of formaldehyde detection data in the third detection data set.
As a third further embodiment, after determining the fan speed of the air purifier according to the initial air quality level, the method further comprises: acquiring a fourth detection data set in a preset second time period, wherein the fourth detection data set comprises the dust detection data and the formaldehyde detection data; selecting a dust maximum value and a dust minimum value in the first dust detection data set, and selecting a formaldehyde maximum value and a formaldehyde minimum value in the first formaldehyde detection data set; and adjusting the rotating speed of the fan according to the fourth detection data set, the dust maximum value, the dust minimum value, the formaldehyde maximum value and the formaldehyde minimum value.
That is, the fan rotational speed is adjusted based on both the dust detection data and the formaldehyde detection data. Specifically, the fan rotation speed may be adjusted according to the fourth detection data set, the dust maximum value, the dust minimum value, the formaldehyde maximum value and the formaldehyde minimum value by adopting the following technical scheme: determining whether the detection data belongs to the dust detection data or the formaldehyde detection data for any detection data in the fourth detection data set; when the detection data belongs to the dust detection data, judging whether the detection data is larger than the dust maximum value or smaller than the dust minimum value; when the detection data belong to the formaldehyde detection data, judging whether the detection data are larger than the maximum formaldehyde value and smaller than the minimum formaldehyde value; traversing all detection data in the fourth detection data set, and respectively counting a fifth number of detection data larger than the dust maximum value, a sixth number of detection data smaller than the dust minimum value, a seventh number of detection data larger than the formaldehyde maximum value and an eighth number of detection data smaller than the formaldehyde minimum value; and adjusting the rotating speed of the fan according to second dust comparison data and second formaldehyde comparison data, wherein the second dust comparison data comprises a fifth quantity and/or a sixth quantity, and the second formaldehyde comparison data comprises a seventh quantity and/or an eighth quantity.
More specifically, the adjusting the rotation speed of the fan according to the second dust comparison data and the second formaldehyde comparison data may adopt the following technical scheme: selecting higher values of the fifth quantity and the sixth quantity to obtain a third adjustment reference value, and determining dust change tendency corresponding to the third adjustment reference value; selecting higher values of the seventh quantity and the eighth quantity to obtain a fourth adjustment reference value; and determining a formaldehyde propensity to change corresponding to the fourth adjusted reference value; when the dust change tendency is the same as the formaldehyde change tendency, selecting a higher value of the third adjustment reference value and the fourth adjustment reference value to obtain a fifth adjustment reference value, and adjusting the rotating speed of the fan according to the fifth adjustment reference value; when the dust change trend and the formaldehyde change trend are different, the initial air quality level is kept unchanged.
Specifically, selecting the higher values of the fifth number and the sixth number to obtain a third adjustment reference value, and determining the dust change tendency corresponding to the third adjustment reference value may be understood as: if the fifth amount is higher, the dust change is considered to be prone to progress toward more dust; if the sixth amount is higher, the dust change is considered to be tending to progress toward dust reduction.
Similarly, selecting higher values of the seventh quantity and the eighth quantity to obtain a fourth adjustment reference value; and determining the formaldehyde propensity to change corresponding to the fourth adjusted reference value may be understood as: if the seventh amount is higher, the formaldehyde change is considered to be tending to progress toward more formaldehyde; if the eighth amount is higher, the formaldehyde change is considered to be tending to progress toward less formaldehyde.
That is, when the trend of the change of the dust and formaldehyde is the same in the second period, the fan rotation speed is controlled according to the relatively large change; when the trend of the change of the dust and the formaldehyde is different in the second time period, the initial air quality grade is kept unchanged.
Wherein, the adjusting the fan rotation speed according to the fifth adjustment reference value includes: judging whether the fifth adjustment reference value is larger than a preset fifth threshold value or not; when the fifth adjustment reference value is larger than the fifth threshold value, judging whether the fifth adjustment reference value is smaller than a preset sixth threshold value or not; when the fifth adjustment reference value is smaller than the sixth threshold value, adjusting the fan rotating speed by a preset third speed value; and when the fifth adjustment reference value is greater than or equal to the sixth threshold value, adjusting the initial air quality level by one level, and adjusting the fan rotating speed to correspond to the adjusted initial air quality level.
For example, the fifth threshold may be 0, and the sixth threshold may be half the amount of dust detection data in the fourth detection data set, and may also be half the amount of formaldehyde detection data in the fourth detection data set.
Specifically, according to the difference of the fifth adjustment reference value, the following four cases can be classified:
(1) The fifth adjustment reference value is a first quantity of detection data which is larger than the dust maximum value in the fourth detection data set, and when the first quantity is larger than 0 but smaller than half of the dust detection data quantity in the fourth detection data set, the rotating speed of the fan is increased by a preset third speed value; when the first quantity is greater than half of the quantity of dust detection data in the fourth detection data set, the initial air quality grade is adjusted by one grade, and the rotating speed of the fan is adjusted to correspond to the adjusted initial air quality grade;
(2) The fifth adjustment reference value is a second number of detection data smaller than the dust minimum value in the fourth detection data set, and when the second number is larger than 0 but smaller than half of the dust detection data number in the fourth detection data set, the rotating speed of the fan is reduced by a preset third speed value; when the second quantity is greater than half of the quantity of dust detection data in the fourth detection data set, adjusting the initial air quality level by one level, and adjusting the rotating speed of the fan to correspond to the adjusted initial air quality level;
(3) The fifth adjustment reference value is a third quantity of detection data which is larger than the maximum formaldehyde value in the fourth detection data set, and when the third quantity is larger than 0 but smaller than half of the formaldehyde detection data quantity in the fourth detection data set, the rotating speed of the fan is increased by a preset third speed value; when the third quantity is greater than half of the quantity of formaldehyde detection data in the fourth detection data set, the initial air quality grade is adjusted by one grade, and the rotating speed of the fan is adjusted to correspond to the adjusted initial air quality grade;
(4) The fifth adjustment reference value is a fourth quantity of detection data smaller than the formaldehyde minimum value in the fourth detection data set, and when the fourth quantity is larger than 0 but smaller than half of the formaldehyde detection data quantity in the fourth detection data set, the fan rotating speed is reduced by a preset third speed value; when the fourth number is greater than half of the number of formaldehyde detection data in the fourth detection data set, the initial air quality level is adjusted by one level, and the fan rotation speed is adjusted to correspond to the adjusted initial air quality level.
To explain the control method of the air cleaner of embodiment 1 of the present invention in more detail, a specific example is given. The example mainly illustrates that the comprehensive air quality grade determination is carried out by combining dust and formaldehyde concentration detection in the working process of the air purifier, and the proper fan rotating speed is carried out by grade adjustment operation. The corresponding relation between dust, formaldehyde concentration range and air quality grade and wind speed is shown in table 1. (reference is made herein to three classes, multiple classes of ranges may be set according to particular needs)
TABLE 1 correspondence between dust, formaldehyde concentration ranges, air quality levels and wind speed
Air quality grade Excellent (excellent) Good grade (good) Difference of difference
Dust concentration 0～c p1 c p1 +1～c p2 c p2 Above mentioned
Concentration of formaldehyde 0～c f1 c f1 +1～c f2 c f2 Above mentioned
Wind speed v Low and low v In (a) v High height
Parameter recommendation value:
starting-up detection time t Initially, the method comprises 10-30 s can be taken, which is specific to the performance of the sensor;
the running time T can be 5-20 s, and can be specifically adjusted according to the precision of the detection requirement;
adjusting wind speed v 1 The air speed can be adjusted by taking 5-30 r/min according to the difference between the corresponding wind speeds of different air quality grades.
And judging the levels of the detected formaldehyde and dust according to the respective air quality ranges, selecting the poor level as the comprehensive air quality level, taking the compromise level as the comprehensive air quality level if the difference between the formaldehyde and dust concentration levels is large, and then adjusting the wind speed of the fan along with the comprehensive air quality level. And after the operation T time, judging the comprehensive air quality level again and adjusting the wind speed. The specific implementation process is as follows:
1. comprehensive air quality level determination
And after each start-up, primarily detecting the concentration of the dust and the formaldehyde within a period of time t, and judging which level the concentration of the dust and the formaldehyde is at the greatest in the period of time, wherein the level is taken as the air quality level of the dust and the formaldehyde. And comparing the grades of the dust and formaldehyde, wherein if the difference is large, the grade is taken as the initial comprehensive air quality grade, otherwise, the poor grade is taken as the initial comprehensive air quality grade. And finally, switching the rotating speed of the control fan to wind speed operation corresponding to the initial comprehensive air quality level.
2. Concentration change treatment process
The time T was run and the dust concentration and formaldehyde concentration during the time T was recorded, after which the change in dust concentration and formaldehyde concentration was compared:
(1) if any detected concentration value is higher than the highest value of the comprehensive air quality level before the time T, the comprehensive air quality level is unchanged, and the wind speed is increased by v 1 ；
(2) If any detected concentration value is lower than the lowest value of the comprehensive air quality level before the time T, the comprehensive air quality level is unchanged, and the wind speed is reduced by v 1 ；
(3) If more than half of the detected concentration value is higher than the highest value of the comprehensive air quality grade before the time T, the comprehensive air quality rises by one grade, and the wind speed is directly switched to the corresponding wind speed operation of the corresponding grade;
(4) if more than half of the detected concentration values are lower than the lowest value of the comprehensive air quality grades before the time T, the comprehensive air quality is reduced by one grade, and the wind speed is directly switched to the corresponding wind speed operation of the corresponding grade;
(5) if the dust concentration and the formaldehyde concentration are in the same air quality level or the detection concentration is decreased one by one and increased one, the comprehensive air quality level is unchanged and the wind speed is unchanged.
The concentration change process is then performed in a cycle after every time T.
It can be seen that the control method of the air purifier provided in embodiment 1 of the present invention has the following advantages:
1. the conventional method that the intelligent regulation and control mode of the single-sensor air purifier is only based on the sensor detection value to regulate the wind speed within a certain range is broken. The dust and formaldehyde values which are common pollution sources in life are detected by adopting the plurality of sensors, and the rotating speed of the fan is adjusted in stages by combining two air quality changes, so that the condition of resource waste caused by excessive purifying amount is better avoided.
2. In order to meet the intelligent control requirement of purifying complex polluted environments, the dust concentration and the formaldehyde concentration are respectively interpreted and classified in a certain air quality grade range, the change condition of the dust concentration and the formaldehyde concentration is monitored in real time, the comprehensive quality is extracted as an intelligent control basis, and the air quality detection rationality and the purification efficiency are improved.
Example 2
In accordance with embodiment 1 of the present invention, embodiment 2 of the present invention provides a control device for an air cleaner. As shown in fig. 3, the control device of the air purifier of embodiment 2 of the present invention includes a first acquisition module 20, a second acquisition module 21, a processing module 22, and an adjustment module 23.
Specifically, the first acquiring module 20 is configured to acquire a first dust detection data set in a preset first period of time;
A second acquisition module 21 for acquiring a first formaldehyde detection data set during the first period of time;
a processing module 22 for determining an initial air quality level over the first time period from the first dust detection data set and the first formaldehyde detection data set;
and the adjusting module 23 is used for determining the fan rotating speed of the air purifier according to the initial air quality grade.
Further, after determining the fan speed of the air purifier according to the initial air quality level, the adjusting module 23 is further configured to: acquiring a second detection data set in a preset second time period, wherein the second detection data set comprises dust detection data and/or formaldehyde detection data; selecting a dust maximum value and a dust minimum value in the first dust detection data set, and a formaldehyde maximum value and a formaldehyde minimum value in the first formaldehyde detection data set; and adjusting the rotating speed of the fan according to the second detection data set, the dust maximum value, the dust minimum value, the formaldehyde maximum value and the formaldehyde minimum value.
The details of the control device of the air purifier may be understood correspondingly with reference to the corresponding related descriptions and effects in the embodiments shown in fig. 1 to 2, which are not repeated herein.
Example 3
The embodiment 3 of the invention also provides an air purifier, which comprises a dust sensor, a formaldehyde sensor and a controller, wherein the dust sensor is used for acquiring dust detection data, the formaldehyde sensor is used for acquiring formaldehyde detection data, and the dust sensor, the formaldehyde sensor and the controller are mutually in communication connection.
The controller may include a processor and a memory, where the processor and memory may be connected by a bus or other means.
The processor may be a central processing unit (Central Processing Unit, CPU). The processor may also be any other general purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof.
The memory, as a non-transitory computer readable storage medium, may be used to store a non-transitory software program, a non-transitory computer executable program, and modules, such as program instructions/modules (e.g., the first acquisition module 20, the second acquisition module 21, the processing module 22, and the adjustment module 23 shown in fig. 3) corresponding to a control method of the air purifier in an embodiment of the present invention. The processor executes various functional applications of the processor and data processing by running non-transitory software programs, instructions, and modules stored in the memory, that is, implements the control method of the air purifier in the above-described method embodiments.
The memory may include a memory program area and a memory data area, wherein the memory program area may store an operating system, at least one application program required for a function; the storage data area may store data created by the processor, etc. In addition, the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory may optionally include memory located remotely from the processor, the remote memory being connectable to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory and when executed by the processor perform the control method of the air purifier in the embodiment shown in fig. 1.
The specific details of the air purifier may be understood with reference to the corresponding relevant descriptions and effects of the embodiments shown in fig. 1 to 2, and will not be repeated herein.
It will be appreciated by those skilled in the art that implementing all or part of the above-described embodiment method may be implemented by a computer program to instruct related hardware, where the program may be stored in a computer readable storage medium, and the program may include the above-described embodiment method when executed. Wherein the storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a Flash Memory (Flash Memory), a Hard Disk (HDD), or a Solid State Drive (SSD); the storage medium may also comprise a combination of memories of the kind described above.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations are within the scope of the invention as defined by the appended claims.

Claims (9)

1. A control method of an air cleaner, comprising:
acquiring a first dust detection data set in a preset first time period;
acquiring a first formaldehyde detection data set within the first time period;
determining an initial air quality level over the first period of time from the first dust detection data set and the first formaldehyde detection data set;
determining the fan rotating speed of the air purifier according to the initial air quality grade;
the determining an initial air quality level over the first time period from the first dust detection dataset and the first formaldehyde detection dataset comprises:
determining an initial dust quality level from a first dust detection dataset within the first period of time;
determining an initial formaldehyde quality level from a first formaldehyde detection dataset within the first time period;
when the difference value between the dust initial quality grade and the formaldehyde initial quality grade is larger than a preset grade threshold, taking the compromise grade of the dust initial quality grade and the formaldehyde initial quality grade as the initial air quality grade;
When the difference between the dust initial quality grade and the formaldehyde initial quality grade is smaller than the grade threshold, taking the worse grade of the dust initial quality grade and the formaldehyde initial quality grade as the initial air quality grade;
and when the initial dust quality grade is the same as the initial formaldehyde quality grade, taking the initial dust quality grade as the initial air quality grade.
2. The method of claim 1, wherein said determining a dust initial quality level from a first dust detection dataset within said first period of time comprises:
respectively determining the dust quality grade of each first dust detection data in the first dust detection data set in the first time period;
counting the quantity of each dust quality grade, and taking the dust quality grade with the largest quantity as the initial dust quality grade;
and/or determining the formaldehyde initial quality level from the first formaldehyde detection dataset over the first period of time comprises:
respectively determining the formaldehyde quality grade of each first formaldehyde detection data in the first formaldehyde detection data set in the first time period;
Counting the number of each formaldehyde quality grade, and taking the formaldehyde quality grade with the largest number as the initial formaldehyde quality grade.
3. The method of claim 1, further comprising, after determining a fan speed of the air purifier based on the initial air quality level:
acquiring a second detection data set in a preset second time period, wherein the second detection data set comprises dust detection data;
selecting a dust maximum value and a dust minimum value in the first dust detection data set;
adjusting the rotating speed of the fan according to the second detection data set, the dust maximum value and the dust minimum value;
or alternatively, the first and second heat exchangers may be,
acquiring a third detection data set in a preset second time period, wherein the third detection data set comprises formaldehyde detection data;
selecting a maximum formaldehyde value and a minimum formaldehyde value in the first formaldehyde detection data set;
adjusting the rotating speed of the fan according to the third detection data set, the maximum formaldehyde value and the minimum formaldehyde value;
or alternatively, the first and second heat exchangers may be,
acquiring a fourth detection data set in a preset second time period, wherein the fourth detection data set comprises the dust detection data and the formaldehyde detection data;
Selecting a dust maximum value and a dust minimum value in the first dust detection data set;
selecting a maximum formaldehyde value and a minimum formaldehyde value in the first formaldehyde detection data set;
and adjusting the rotating speed of the fan according to the fourth detection data set, the dust maximum value, the dust minimum value, the formaldehyde maximum value and the formaldehyde minimum value.
4. A method according to claim 3, characterized in that:
adjusting the fan speed according to the second detection data set, the dust maximum value and the dust minimum value includes:
judging whether the dust detection data in the second detection data set is larger than the dust maximum value or smaller than the dust minimum value;
counting a first number of detection data greater than the dust maximum value and a second number of detection data less than the dust minimum value;
adjusting the rotating speed of the fan according to first dust comparison data, wherein the first dust comparison data comprises a first quantity and/or a second quantity;
or alternatively, the first and second heat exchangers may be,
adjusting the fan speed according to the third detection data set, the formaldehyde maximum value and the formaldehyde minimum value includes:
Judging whether the formaldehyde detection data in the third detection data set is larger than the maximum formaldehyde value and smaller than the minimum formaldehyde value;
counting a third number of detection data greater than the maximum formaldehyde value and a fourth number of detection data less than the minimum formaldehyde value;
adjusting the rotating speed of the fan according to first formaldehyde comparison data, wherein the first formaldehyde comparison data comprises a third quantity and/or a fourth quantity;
or alternatively, the first and second heat exchangers may be,
adjusting the fan speed according to the fourth detection data set, the dust maximum value, the dust minimum value, the formaldehyde maximum value, and the formaldehyde minimum value includes:
determining whether the detection data belongs to the dust detection data or the formaldehyde detection data for any detection data in the fourth detection data set; when the detection data belongs to the dust detection data, judging whether the detection data is larger than the dust maximum value or smaller than the dust minimum value; when the detection data belong to the formaldehyde detection data, judging whether the detection data are larger than the maximum formaldehyde value and smaller than the minimum formaldehyde value;
Traversing all detection data in the fourth detection data set, and respectively counting a fifth number of detection data larger than the dust maximum value, a sixth number of detection data smaller than the dust minimum value, a seventh number of detection data larger than the formaldehyde maximum value and an eighth number of detection data smaller than the formaldehyde minimum value;
and adjusting the rotating speed of the fan according to second dust comparison data and second formaldehyde comparison data, wherein the second dust comparison data comprises a fifth quantity and/or a sixth quantity, and the second formaldehyde comparison data comprises a seventh quantity and/or an eighth quantity.
5. The method of claim 4, wherein the step of determining the position of the first electrode is performed,
the adjusting the fan rotation speed according to the first dust comparison data includes:
selecting higher values of the first quantity and the second quantity to obtain a first adjustment reference value;
adjusting the rotating speed of the fan according to the first adjusting reference value;
or alternatively, the first and second heat exchangers may be,
the adjusting the fan rotating speed according to the first formaldehyde comparison data comprises the following steps of;
selecting higher values of the third quantity and the fourth quantity to obtain a second adjustment reference value;
Adjusting the rotating speed of the fan according to the second adjusting reference value;
or alternatively, the first and second heat exchangers may be,
the adjusting the fan rotational speed according to the second dust comparison data and the second formaldehyde comparison data includes:
selecting higher values of the fifth quantity and the sixth quantity to obtain a third adjustment reference value, and determining dust change tendency corresponding to the third adjustment reference value;
selecting higher values of the seventh quantity and the eighth quantity to obtain a fourth adjustment reference value; and determining a formaldehyde propensity to change corresponding to the fourth adjusted reference value;
when the dust change trend is the same as the formaldehyde change trend, selecting a higher value of the third adjustment reference value and the fourth adjustment reference value to obtain a fifth adjustment reference value, and adjusting the rotating speed of the fan according to the fifth adjustment reference value.
6. The method according to claim 5, wherein:
the adjusting the fan rotation speed according to the first adjustment reference value includes:
judging whether the first adjustment reference value is larger than a preset first threshold value or not; when the first adjustment reference value is larger than the first threshold value, judging whether the first adjustment reference value is smaller than a preset second threshold value or not; when the first adjustment reference value is smaller than the second threshold value, adjusting the rotating speed of the fan by a preset first speed value; when the first adjustment reference value is greater than or equal to the second threshold value, adjusting the initial air quality level by one level, and adjusting the fan rotating speed to correspond to the adjusted initial air quality level;
Or alternatively, the first and second heat exchangers may be,
the adjusting the fan rotation speed according to the second adjustment reference value includes:
judging whether the second adjustment reference value is larger than a preset third threshold value or not; when the second adjustment reference value is larger than the third threshold value, judging whether the second adjustment reference value is smaller than a preset fourth threshold value or not; when the second adjustment reference value is smaller than the fourth threshold value, adjusting the fan rotating speed by a preset second speed value; when the second adjustment reference value is greater than or equal to the fourth threshold value, adjusting the initial air quality level by one level, and adjusting the fan rotating speed to correspond to the adjusted initial air quality level;
or alternatively, the first and second heat exchangers may be,
the adjusting the fan rotation speed according to the fifth adjustment reference value includes: judging whether the fifth adjustment reference value is larger than a preset fifth threshold value or not; when the fifth adjustment reference value is larger than the fifth threshold value, judging whether the fifth adjustment reference value is smaller than a preset sixth threshold value or not; when the fifth adjustment reference value is smaller than the sixth threshold value, adjusting the fan rotating speed by a preset third speed value; and when the fifth adjustment reference value is greater than or equal to the sixth threshold value, adjusting the initial air quality level by one level, and adjusting the fan rotating speed to correspond to the adjusted initial air quality level.
7. A control device of an air cleaner, comprising:
the first acquisition module is used for acquiring a first dust detection data set in a preset first time period;
the second acquisition module is used for acquiring a first formaldehyde detection data set in the first time period;
a processing module for determining an initial air quality level over the first time period from the first dust detection dataset and the first formaldehyde detection dataset; the determining an initial air quality level over the first time period from the first dust detection dataset and the first formaldehyde detection dataset comprises: determining an initial dust quality level from a first dust detection dataset within the first period of time; determining an initial formaldehyde quality level from a first formaldehyde detection dataset within the first time period; when the difference value between the dust initial quality grade and the formaldehyde initial quality grade is larger than a preset grade threshold, taking the compromise grade of the dust initial quality grade and the formaldehyde initial quality grade as the initial air quality grade; when the difference between the dust initial quality grade and the formaldehyde initial quality grade is smaller than the grade threshold, taking the worse grade of the dust initial quality grade and the formaldehyde initial quality grade as the initial air quality grade; when the initial dust quality level is the same as the initial formaldehyde quality level, taking the initial dust quality level as the initial air quality level;
And the adjusting module is used for determining the fan rotating speed of the air purifier according to the initial air quality grade.
8. An air purifier, comprising:
the dust sensor is used for acquiring dust detection data;
the formaldehyde sensor is used for acquiring formaldehyde detection data;
the dust sensor, the formaldehyde sensor and the controller are in communication connection, computer instructions are stored in the controller, and the controller executes the computer instructions, so that the control method of the air purifier is executed by the controller.
9. A computer-readable storage medium storing computer instructions for causing the computer to execute the control method of the air cleaner according to any one of claims 1 to 6.
CN202210730085.3A 2022-06-24 2022-06-24 Air purifier, control method and device of air purifier Active CN114909753B (en)

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