CN113701327A - Control method, air conditioner, and computer-readable storage medium - Google Patents

Control method, air conditioner, and computer-readable storage medium Download PDF

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Publication number
CN113701327A
CN113701327A CN202010429528.6A CN202010429528A CN113701327A CN 113701327 A CN113701327 A CN 113701327A CN 202010429528 A CN202010429528 A CN 202010429528A CN 113701327 A CN113701327 A CN 113701327A
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China
Prior art keywords
indoor
concentration
heat exchange
outdoor
air pressure
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CN202010429528.6A
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Chinese (zh)
Inventor
樊文科
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Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
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Priority to CN202010429528.6A priority Critical patent/CN113701327A/en
Publication of CN113701327A publication Critical patent/CN113701327A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/65Electronic processing for selecting an operating mode
    • F24F11/67Switching between heating and cooling modes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74Control 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
    • F24F11/77Control 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/40Pressure, e.g. wind pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/50Air quality properties
    • F24F2110/65Concentration of specific substances or contaminants
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides a control method, an air conditioner and a computer readable storage medium. The control method is used for the indoor unit and comprises the following steps: acquiring an environmental parameter corresponding to the indoor unit; determining the opening and closing of the heat exchange device according to the indoor temperature and the set temperature in the environmental parameters; and determining the operation of the purification device and the fan according to the operation state of the heat exchange device and the concentration of the indoor pollutants in the environmental parameters. According to the technical scheme, the operation of the purification device and the fan is determined according to the operation state of the heat exchange device and the concentration of the indoor pollutants, so that the purification control is not only according to the concentration of the indoor pollutants, but also considering different operation states of the heat exchange device, and the comprehensive requirements of users on heat comfort and air quality are met.

Description

Control method, air conditioner, and computer-readable storage medium
Technical Field
The invention relates to the technical field of air conditioner control, in particular to a control method, an air conditioner and a computer readable storage medium.
Background
At present, most indoor air has poor quality, and certain damage can be caused to the bodies of people who are in the room for a long time, in the prior art, an independent fresh air filtering device is usually used for purifying the indoor air, but for large public buildings such as office buildings, the purifying effect of the fresh air filtering device can be adjusted by managers due to the fact that the operation time of the fresh air filtering device can be adjusted, so that the daily purifying time is only about one hour due to the fact that the operation cost is saved, the time of a user in the building usually exceeds eight hours, and the air quality of the environment where the user is located in the building in the rest time except the purifying time is low.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
In view of the above, an object of the present invention is to provide a control method.
Another object of the present invention is to provide an air conditioner.
It is another object of the present invention to provide a computer-readable storage medium.
In order to achieve the above object, a technical solution of a first aspect of the present invention provides a control method for an indoor unit, where the indoor unit includes a fan, a purification device, and a heat exchange device, and the control method includes: acquiring an environmental parameter corresponding to the indoor unit; determining the opening and closing of the heat exchange device according to the indoor temperature and the set temperature in the environmental parameters; and determining the operation of the purification device and the fan according to the operation state of the heat exchange device and the concentration of the indoor pollutants in the environmental parameters.
The control method of the invention is used for an indoor unit with a fan, a purification device and a heat exchange device, wherein the heat exchange device is used for realizing refrigeration or heating, the fan drives air to flow, can realize the internal circulation of indoor air, and can also be matched with the operation of the purification device on the basis of the work of the purification device to realize the mutual flow of indoor air and outdoor air, the control method comprises the steps of obtaining environmental parameters including indoor temperature and indoor pollutant concentration, determining whether the heat exchange device needs to operate or not according to the relation between the indoor temperature and the set temperature, namely, the opening and closing of the heat exchange device are determined, so that the operation of the purification device and the fan is determined according to the operation state of the heat exchange device and the concentration of indoor pollutants, the purification control is not only according to the concentration of indoor pollutants, but also considering different running states of the heat exchange device, so as to meet the comprehensive requirements of users on heat comfort and air quality.
It will be appreciated that the acquisition of the environmental parameter may be achieved by the detection of a sensor disposed at a particular location.
The environment parameter corresponding to the indoor unit may be an indoor parameter of an environment in which the indoor unit is located, or an outdoor parameter of an environment in which an outdoor unit connected to the indoor unit is located.
The concentration of the indoor pollutants can be the concentration of solid particles which affect the health of human bodies, such as the concentration of particles with the diameter less than or equal to 2.5mm, the concentration of particles with the diameter less than or equal to 10mm and the like.
In the above technical solution, before determining the opening and closing of the heat exchanging device according to the indoor temperature and the set temperature in the environmental parameter, the method further includes: determining a heat exchange mode of the indoor unit; and controlling the operation of the heat exchange device and the fan according to the heat exchange mode.
In the technical scheme, before the opening and closing of the heat exchange device are controlled, the specific operation of the heat exchange device and the fan is controlled by determining different heat exchange modes of the indoor unit, and it can be understood that the operation logic and the control logic of the heat exchange device of the indoor unit are different under different heat exchange modes, and the operation time and the rotating speed of the fan can be correspondingly changed, so that the corresponding control is required according to the heat exchange mode of the indoor unit before the opening and closing of the heat exchange device are determined, and the possibility that the indoor unit cannot normally operate due to logic conflict is reduced.
In the above technical scheme, when the heat exchange mode is the refrigeration mode, the opening and closing of the heat exchange device is determined according to the indoor temperature and the set temperature in the environmental parameter, and specifically comprises: if the indoor temperature is higher than the set temperature, controlling the heat exchange device to perform refrigeration operation, and controlling the fan and the heat exchange device to perform corresponding operation, otherwise, controlling the heat exchange device to stop operation; or when the heat exchange mode is the heating mode, the step of determining the opening and closing of the heat exchange device according to the indoor temperature and the set temperature in the environmental parameters specifically comprises the following steps: if the indoor temperature is lower than the set temperature, the heat exchange device is controlled to heat and operate, the fan and the heat exchange device are controlled to operate correspondingly, and otherwise, the heat exchange device is controlled to stop operating.
In the technical scheme, the heat exchange mode comprises a refrigeration mode and a heating mode, the operation of the heat exchange device and the fan is controlled according to the different magnitude relations of the indoor temperature and the set temperature in different modes, specifically, in the refrigeration mode, when the indoor temperature is higher than the set temperature, the current indoor temperature is considered to be higher, the refrigeration operation of the heat exchange device needs to be controlled, and the fan is controlled to operate along with the heat exchange device according to the control logic of the refrigeration mode, so that cold air generated after the heat exchange device is refrigerated is discharged into the room to realize refrigeration and temperature reduction, of course, when the indoor temperature is less than or equal to the set temperature, the current indoor temperature can be considered to meet the use requirement of a user, so that continuous refrigeration is not needed, the heat exchange device is controlled to stop operating, and similarly, when the indoor temperature is less than the set temperature, the current indoor temperature is considered to be lower, the indoor temperature is required to be improved to provide better use experience for users, so that the heat exchange device is controlled to heat and operate, the fan is controlled to operate along with the heat exchange device according to the control logic of the heating mode, and certainly, when the indoor temperature is greater than or equal to the set temperature, the current indoor temperature can be considered to meet the use requirement of the users, so that the heating is not required to be continued, and the heat exchange device is controlled to stop operating.
It should be noted that the corresponding operation of the fan and the heat exchanger is determined according to the overall cooling and heating load of the air conditioner and the control logic in the cooling mode.
In the above technical solution, the environmental parameters further include outdoor pollutant concentration, indoor air pressure and outdoor air pressure, and the control method further includes: when the heat exchange device is in refrigeration operation or heating operation, determining the concentration of indoor pollutants, the concentration of outdoor pollutants, and the pressure difference value between outdoor air pressure and indoor air pressure; controlling the purification device to operate when the concentration of the indoor pollutants is greater than or equal to a first concentration threshold value; or when the concentration of the indoor pollutants is smaller than the first concentration threshold value, the air pressure difference value is not smaller than the first air pressure threshold value and the concentration of the outdoor pollutants is not smaller than the concentration of the indoor pollutants, the purification device is controlled to operate.
In the technical scheme, the environmental parameters further include outdoor pollutant concentration, indoor air pressure and outdoor air pressure, the purification device considers a plurality of environmental parameters during operation to improve the accuracy of operation, specifically, under the working condition of the heat exchange device, if the indoor pollutant concentration is greater than or equal to a first concentration threshold value, the current indoor air quality is considered to be poor, so as to improve the indoor air quality by controlling the operation of the purification device, and when the indoor pollutant concentration is lower, i.e. less than the first concentration threshold value, the judgment needs to be performed according to the indoor and outdoor air pressure, i.e. the air pressure difference between the outdoor air pressure and the indoor air pressure and the outdoor pollutant concentration, further, when the air pressure difference is greater than or equal to the first air pressure threshold value, the current outdoor pressure is considered to be greater, so as to possibly flow into the indoor from some walls, windows or other areas with poor sealing performance, since the outdoor pollutant concentration is greater than or equal to the indoor pollutant concentration, the indoor air quality is reduced when outdoor air flows into the room, and the purification device is also required to operate for purification.
The first concentration threshold may be a preset default value, or may also be a preset value flexibly adjusted according to the level of the indoor air quality by the user, and the first air pressure threshold may be a preset default value, or a preset value adjusted according to the actual use requirement.
Wherein, the air pressure difference is outdoor air pressure-indoor air pressure.
In the above technical solution, the method further comprises: and when the heat exchange device stops operating, determining the operation of the purification device and the fan according to the concentration of the indoor pollutants.
In this technical scheme, when heat transfer device stopped operating, the indoor set need not to consider the big or small relation of indoor temperature and settlement temperature promptly, only need control purifier and fan's operation according to indoor pollutant concentration size to reduce the influence of temperature to purifier, improve and purify the degree of accuracy.
In the above technical scheme, the environmental parameter still includes outdoor pollutant concentration, indoor atmospheric pressure and outdoor atmospheric pressure, confirms the operation of purifier and fan according to indoor pollutant concentration, specifically includes: when the concentration of the indoor pollutants is greater than or equal to the second concentration threshold value, starting the purification device, and controlling the fan to operate at a first rotating speed; or when the concentration of the indoor pollutants is smaller than the second concentration threshold, the purification device is started, and the operation of the fan is controlled according to the air pressure difference value between the outdoor air pressure and the indoor air pressure and the concentration of the outdoor pollutants.
In the technical scheme, the environmental parameters also comprise outdoor pollutant concentration, indoor air pressure and outdoor air pressure, a plurality of environmental parameters are considered when the purifying device operates so as to improve the operating accuracy, on the basis of the stop operation of the heat exchange device, when the concentration of the indoor pollutants is detected to be greater than or equal to the second concentration threshold value, when the indoor air quality is poor, the purification device is controlled to operate to improve the indoor air quality, and when the indoor pollutant concentration is low, i.e. less than the second concentration threshold, it is necessary to perform comprehensive judgment according to the indoor and outdoor air pressures and the outdoor pollutant concentration, as can be understood, when the concentration of outdoor pollutants is high, outdoor air can be pressed into the room under the action of air pressure difference, so as to pollute the room, and the accuracy of indoor air purification can be improved by increasing the parameters of indoor and outdoor air pressure and outdoor pollutant concentration.
The second concentration threshold and the first concentration threshold may be set to be the same by using the same standard, or may be set to be different according to user requirements.
In the above technical scheme, the operation of the fan is controlled according to the air pressure difference between the outdoor air pressure and the indoor air pressure and the concentration of outdoor pollutants, and the method specifically comprises the following steps: and when the concentration of the indoor pollutants is smaller than a third concentration threshold, if the air pressure difference value is not smaller than a second pressure difference threshold and the concentration of the outdoor pollutants is larger than a fourth concentration threshold, controlling the fan to operate at a fourth rotating speed, wherein the third concentration threshold is smaller than the second concentration threshold, the fourth concentration threshold is larger than the third concentration threshold, and the fourth rotating speed is smaller than the first rotating speed.
In this technical scheme, it is lower at indoor pollutant concentration, belong to higher air quality's basis, if the atmospheric pressure difference value is great, and when outdoor air quality was relatively poor, outdoor pollutant concentration was greater than indoor pollutant concentration promptly, the outside air probably part flows in indoorly, produce certain influence to indoor air quality, operate with the fourth rotational speed through control fan this moment, can realize purifying the indoor small part air of inflow that produces the influence, in order to satisfy the air quality demand of user to indoor whole space.
Wherein, because the fourth rotational speed is less than first rotational speed, when indoor air quality is relatively poor, the great first rotational speed of accessible purifies fast, and when indoor air quality is higher, because there is certain pressure differential indoor outer, and the great air of outdoor pollution can flow into indoorly, but the volume of inflow can not be very much, so only need select for lower fourth rotational speed to purify and can keep indoor air quality.
In the above technical scheme, the operation of the fan is controlled according to the air pressure difference between the outdoor air pressure and the indoor air pressure and the concentration of outdoor pollutants, and the method specifically comprises the following steps: when the concentration of the indoor pollutants is greater than or equal to a third concentration threshold and less than a second concentration threshold, if the air pressure difference value is less than a second pressure difference threshold, controlling the fan to operate at a fourth rotating speed; if the air pressure difference value is greater than or equal to the second pressure difference threshold value and the concentration of the outdoor pollutants is greater than or equal to the fourth concentration threshold value, controlling the fan to operate at a second rotating speed; and if the air pressure difference value is greater than or equal to a second pressure difference threshold value, the outdoor pollutant concentration is greater than the indoor pollutant concentration, and the outdoor pollutant concentration is less than a fourth concentration threshold value, controlling the fan to operate at a third rotating speed, wherein the second rotating speed is greater than the third rotating speed, and the third rotating speed is greater than the fourth rotating speed.
In the technical scheme, when the concentration of indoor pollutants is between a third concentration threshold and a second concentration threshold, the air quality of an indoor space is at a medium level, further judgment and control are required according to an air pressure difference, specifically, when the air pressure difference is smaller than the second pressure difference threshold, a fan is controlled to operate at a minimum fourth rotating speed, it can be understood that the air pressure difference is smaller, the air pressed into the indoor space is less, the purification requirement can be realized only by purifying the pollutants existing in the indoor space, when the air pressure difference is larger than or equal to the second pressure difference threshold, a part of outdoor air is pressed into the indoor space, at this time, the range of the concentration of the outdoor pollutants is required to be further determined, so that the specific operation of the fan is determined according to the quality of the outdoor air, more specifically, when the concentration of the outdoor pollutants is higher, the rotating speed required by the fan is required to be larger than the rotating speed at which the concentration of the outdoor pollutants is lower but higher than the concentration of the indoor pollutants, therefore, the fan is controlled to operate at different rotating speeds according to different actual outdoor environments, and the accurate purification of indoor air is facilitated.
A second aspect of the present invention provides an air conditioner, including: the indoor unit and the outdoor unit are connected through pipelines, and a fan, a purification device and a heat exchange device are arranged in the indoor unit; the device comprises a memory and a processor, wherein a computer program which can run on the processor is stored in the memory; the processor is electrically connected with the fan, the purification device and the heat exchange device, and the steps of the control method according to any one of the above technical schemes in the first aspect are realized when the processor executes a computer program.
In this technical scheme, the air conditioner includes an indoor unit having a fan, a purification device, and a heat exchange device therein, and an outdoor unit connected to a pipeline of the indoor unit, and can perform heat exchange under the action of the heat exchange device, and perform purification of indoor air under the combined action of the purification device and the fan, and in addition, the steps of the control method according to any one of the above first aspect are performed when a computer program is executed by a processor, so that all beneficial effects of the above technical scheme are achieved, and no further description is provided herein.
An aspect of the third aspect of the present invention provides a computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of the control method according to any one of the above-mentioned first aspects.
In this technical solution, the steps of the control method according to any one of the first aspect are implemented when the computer program is executed by the processor, so that all the beneficial effects of the above technical solution are achieved, and details are not described herein.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic flow diagram of a control method of one embodiment of the present invention;
FIG. 2 is a schematic flow chart of a control method of another embodiment of the present invention;
FIG. 3 is a flow chart illustrating a control method according to another embodiment of the present invention;
FIG. 4 is a flow chart illustrating a control method according to another embodiment of the present invention;
fig. 5 is a block diagram schematically illustrating the structure of an air conditioner according to an embodiment of the present invention;
fig. 6 is a flow chart illustrating a control method according to an embodiment of the present invention.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Some embodiments according to the invention are described below with reference to fig. 1 to 6.
Example 1
As shown in fig. 1, a control method according to an embodiment of the present invention is applied to an indoor unit, and includes: step S102: acquiring an environmental parameter corresponding to the indoor unit; step S104: determining the opening and closing of the heat exchange device according to the indoor temperature and the set temperature in the environmental parameters; step S106: and determining the operation of the purification device and the fan according to the operation state of the heat exchange device and the concentration of the indoor pollutants in the environmental parameters.
Through set up the fan that the drive air flows in the indoor set, to indoor air purification in order to eliminate solid particle's purifier and be used for realizing the heat transfer device who refrigerates or heat, at the in-process of control indoor set operation, at first need obtain the environmental parameter including indoor temperature and indoor pollutant concentration, and whether need the heat transfer device operation in order to confirm according to the relation of indoor temperature and settlement temperature, confirm the switching of heat transfer device promptly, thereby confirm the operation of purifier and fan according to heat transfer device's running state and indoor pollutant concentration, make purification control not only according to indoor pollutant concentration, still need consider the different running state of heat transfer device, in order to satisfy the comprehensive demand of user to thermal comfort and air quality.
It will be appreciated that the acquisition of the environmental parameter may be achieved by the detection of a sensor disposed at a particular location.
The environment parameter corresponding to the indoor unit may be an indoor parameter of an environment in which the indoor unit is located, or an outdoor parameter of an environment in which an outdoor unit connected to the indoor unit is located.
The concentration of the indoor pollutants can be the concentration of solid particles which affect the health of human bodies, such as the concentration of particles with the diameter less than or equal to 2.5mm, the concentration of particles with the diameter less than or equal to 10mm and the like.
Example 2
As shown in fig. 2, a control method according to an embodiment of the present invention is applied to an indoor unit, and includes: step S202: acquiring an environmental parameter corresponding to the indoor unit; step S204: determining a heat exchange mode of the indoor unit; step S206: when the heat exchange mode is a refrigeration mode, if the indoor temperature is higher than the set temperature, controlling the heat exchange device to perform refrigeration operation, controlling the fan and the heat exchange device to perform corresponding operation, and otherwise, controlling the heat exchange device to stop operating; step S208: when the heat exchange mode is a heating mode, if the indoor temperature is lower than the set temperature, controlling the heat exchange device to perform heating operation, and controlling the fan and the heat exchange device to perform corresponding operation, otherwise, controlling the heat exchange device to stop operating; step S210: and determining the operation of the purification device and the fan according to the operation state of the heat exchange device and the concentration of the indoor pollutants in the environmental parameters.
In this embodiment, before controlling the on/off of the heat exchanging device, the specific operations of the heat exchanging device and the fan are controlled by determining different heat exchanging modes of the indoor unit, it can be understood that, in the different heat exchanging modes of the indoor unit, the operation logic and the control logic of the heat exchanging device are different, and the operation time and the rotation speed of the fan are also changed correspondingly, specifically, in the cooling mode, when the indoor temperature is higher than the set temperature, it is considered that the current indoor temperature is higher, so the cooling operation of the heat exchanging device needs to be controlled, and the fan is controlled to operate together with the heat exchanging device according to the control logic of the cooling mode, so that the cold air generated after the cooling of the heat exchanging device is discharged into the room to achieve the cooling, of course, when the indoor temperature is less than or equal to the set temperature, it is considered that the current indoor temperature can meet the user's usage requirements, so that the cooling does not need to continue, therefore, the heat exchange device can be controlled to stop operating, similarly, in the heating mode, when the indoor temperature is lower than the set temperature, the current indoor temperature is considered to be lower, the indoor temperature needs to be improved to provide better use experience for users, the heating operation of the heat exchange device is controlled, the fan is controlled to operate according to the control logic of the heating mode together with the heat exchange device, of course, when the indoor temperature is higher than or equal to the set temperature, the current indoor temperature can be considered to meet the use requirement of the users, the heating is not required to continue, and the heat exchange device is controlled to stop operating.
It should be noted that the corresponding operation of the fan and the heat exchanger is determined according to the overall cooling and heating load of the air conditioner and the control logic in the cooling mode.
Example 3
As shown in fig. 3, a control method according to an embodiment of the present invention is applied to an indoor unit, and includes: step S302: acquiring an environmental parameter corresponding to the indoor unit; step S304: determining a heat exchange mode of the indoor unit; step S306: when the heat exchange mode is a refrigeration mode, if the indoor temperature is higher than the set temperature, controlling the heat exchange device to perform refrigeration operation, controlling the fan and the heat exchange device to perform corresponding operation, and otherwise, controlling the heat exchange device to stop operating; step S308: when the heat exchange mode is a heating mode, if the indoor temperature is lower than the set temperature, controlling the heat exchange device to perform heating operation, and controlling the fan and the heat exchange device to perform corresponding operation, otherwise, controlling the heat exchange device to stop operating; step S310: when the heat exchange device is in refrigeration operation or heating operation, determining the concentration of indoor pollutants, the concentration of outdoor pollutants, and the pressure difference value between outdoor air pressure and indoor air pressure; step S312: controlling the purification device to operate when the concentration of the indoor pollutants is greater than or equal to a first concentration threshold value; step S314: and when the concentration of the indoor pollutants is less than the first concentration threshold, the air pressure difference value is not less than the first air pressure threshold, and the concentration of the outdoor pollutants is not less than the concentration of the indoor pollutants, controlling the purification device to operate.
In this embodiment, the environmental parameters further include outdoor contaminant concentration, indoor air pressure, and outdoor air pressure on the basis of the cooling operation or the heating operation of the heat exchange device, and the purification device considers a plurality of environmental parameters during the operation to improve the operation accuracy, specifically, when the heat exchange device is in the operating state, if the indoor contaminant concentration is greater than or equal to the first concentration threshold, the current indoor air quality is considered to be poor, so as to improve the indoor air quality by controlling the operation of the purification device, and when the indoor contaminant concentration is low, i.e., less than the first concentration threshold, the judgment needs to be performed according to the indoor and outdoor air pressures, i.e., the air pressure difference between the outdoor air pressure and the indoor air pressure, and the outdoor contaminant concentration, and further, when the air pressure difference is greater than or equal to the first air pressure threshold, the current outdoor pressure is considered to be high, so that some walls with poor sealing performance, walls, indoor air pressure, outdoor air pressure, and the like, The window or other areas flow into the room, and the outdoor air flowing into the room reduces the indoor air quality because the outdoor pollutant concentration is greater than or equal to the indoor pollutant concentration, so the purification device is also needed to operate for purification.
The first concentration threshold may be a preset default value, or may also be a preset value flexibly adjusted according to the level of the indoor air quality by the user, and the first air pressure threshold may be a preset default value, or a preset value adjusted according to the actual use requirement.
Wherein, the air pressure difference is outdoor air pressure-indoor air pressure.
Example 4
As shown in fig. 4, the control method according to an embodiment of the present invention includes: step S402: acquiring an environmental parameter corresponding to the indoor unit; step S404: determining the opening and closing of the heat exchange device according to the indoor temperature and the set temperature in the environmental parameters; step S406: when the concentration of the indoor pollutants is greater than or equal to the second concentration threshold value, starting the purification device, and controlling the fan to operate at a first rotating speed; step S408: when the concentration of the indoor pollutants is smaller than a second concentration threshold, starting the purification device, and controlling the operation of the fan according to the air pressure difference value between the outdoor air pressure and the indoor air pressure and the concentration of the outdoor pollutants; step S410: when the concentration of the indoor pollutants is smaller than a third concentration threshold, if the air pressure difference value is not smaller than a second pressure difference threshold and the concentration of the outdoor pollutants is larger than a fourth concentration threshold, controlling the fan to operate at a fourth rotating speed; step S412: when the concentration of the indoor pollutants is greater than or equal to a third concentration threshold and less than a second concentration threshold, if the air pressure difference value is less than a second pressure difference threshold, controlling the fan to operate at a fourth rotating speed; step S414: if the air pressure difference value is not less than the second pressure difference threshold value and the outdoor pollutant concentration is not less than the fourth concentration threshold value, controlling the fan to operate at a second rotating speed; step S416: and if the air pressure difference value is not less than the second pressure difference threshold value, the outdoor pollutant concentration is greater than the indoor pollutant concentration, and the outdoor pollutant concentration is less than the fourth concentration threshold value, controlling the fan to operate at a third rotating speed.
In this embodiment, the environmental parameters further include outdoor contaminant concentration, indoor air pressure, and outdoor air pressure, and the purification apparatus operates taking into account a plurality of environmental parameters to improve the accuracy of the operation, on the basis of the stop operation of the heat exchange device, when the concentration of the indoor pollutants is detected to be greater than or equal to the second concentration threshold value, when the indoor air quality is poor, the purification device is controlled to operate to improve the indoor air quality, and when the indoor pollutant concentration is low, i.e. less than the second concentration threshold, it is necessary to perform comprehensive judgment according to the indoor and outdoor air pressures and the outdoor pollutant concentration, as can be understood, when the concentration of outdoor pollutants is high, outdoor air can be pressed into the room under the action of air pressure difference, so as to pollute the room, and the accuracy of indoor air purification can be improved by increasing the parameters of indoor and outdoor air pressure and outdoor pollutant concentration.
The second concentration threshold and the first concentration threshold may be set to be the same by using the same standard, or may be set to be different according to user requirements.
At indoor pollutant concentration lower, belong to higher air quality's basis, if the atmospheric pressure difference value is great, and when outdoor air quality is relatively poor, outdoor pollutant concentration is greater than indoor pollutant concentration promptly, the outside air probably part flows into indoorly, in order to produce certain influence to indoor air quality, through controlling the fan with the fourth rotational speed operation this moment, can realize purifying the indoor small part air of inflow that produces the influence, in order to satisfy the air quality demand of user to indoor whole space.
Wherein, because the fourth rotational speed is less than first rotational speed, when indoor air quality is relatively poor, the great first rotational speed of accessible purifies fast, and when indoor air quality is higher, because there is certain pressure differential indoor outer, and the great air of outdoor pollution can flow into indoorly, but the volume of inflow can not be very much, so only need select for lower fourth rotational speed to purify and can keep indoor air quality.
When the concentration of indoor pollutants is between a third concentration threshold and a second concentration threshold, the air quality of the indoor space is at a medium level, further judgment and control are needed according to the air pressure difference, specifically, when the air pressure difference is smaller than the second pressure difference threshold, the fan is controlled to operate at a minimum fourth rotating speed, it can be understood that the air pressure difference is smaller, less air is pressed into the room, the purification requirement can be realized only by purifying the pollutants existing in the room, when the air pressure difference is larger than the second pressure difference threshold, partial outdoor air is possibly pressed into the room, at this time, the range of the concentration of the outdoor pollutants needs to be further determined, so that the specific operation of the fan is determined according to the outdoor air quality, more specifically, when the concentration of the outdoor pollutants is higher, the rotating speed needed by the fan needs to be larger than, and the concentration of the outdoor pollutants is lower but higher than the rotating speed of the concentration of the indoor pollutants, therefore, the fan is controlled to operate at different rotating speeds according to different actual outdoor environments, and the accurate purification of indoor air is facilitated.
Example 5
As shown in fig. 5, an air conditioner according to an embodiment of the present invention includes: the indoor unit 500 and the outdoor unit 600 are connected through a pipeline, and a fan 502, a purification device 504 and a heat exchange device 510 are arranged in the indoor unit 500; a memory 506 and a processor 508, the memory 506 having stored thereon a computer program operable on the processor 508; the processor 508 is electrically connected to the fan 502, the purification device 504 and the heat exchange device 510, and the steps of the control method according to any of the above embodiments are implemented when the processor 508 executes the computer program.
Wherein, the heat exchanging device 510 is a heat exchanger.
An indoor temperature sensor, an indoor PM2.5 sensor and an indoor pressure sensor are arranged in the space where the indoor unit 500 is located, and an outdoor pressure sensor and an outdoor PM2.5 sensor are arranged in the space where the outdoor unit 600 is located.
Air conditioners include, but are not limited to, central air conditioners, wall-mounted air conditioners, and cabinet air conditioners.
Example 6
An embodiment of the third aspect of the invention provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the control method according to any one of the embodiments described above.
In this embodiment, the steps of the control method of any one of the above embodiments are implemented by a computer program when being executed by a processor, so that all the beneficial effects of the above technical solutions are achieved, and details are not described herein.
Example 7
As shown in fig. 6, the control method according to an embodiment of the present invention is used for an air conditioner, and the control method of the embodiment is used for purifying the PM2.5 concentration in a room, and specifically includes the following steps:
step S602, at the k-th time, the indoor temperature, the concentration of the indoor and outdoor air pollutants PM2.5 (i.e., the concentration of the indoor air pollutants and the concentration of the outdoor air pollutants), and the indoor and outdoor air pressures (i.e., the indoor air pressure and the outdoor air pressure) are measured: t isindoor、CPM2.5,indoor、CPM2.5,outdoor、Pair,indoor、Pair,outdoor
Step S604, at the k-th time, if T is during coolingindoorGreater than TsetOr T during heatingindoorLess than TsetAnd then starting a fan (namely a fan) of an air conditioner indoor unit at the moment K +1 to perform a cooling or heating function. Meanwhile, if CPM2.5,indoorGreater than or equal to 35ug/m3(i.e., the indoor contaminant concentration is greater than or equal to the first concentration threshold), or CPM2.5,indoorLess than 35ug/m3And P isair,outNot less than (P)air,in+5Pa) and CPM2.5,outNot less than CPM2.5,in(namely the concentration of the indoor pollutants is less than a first concentration threshold value, the air pressure difference value is not less than a first air pressure threshold value, and the concentration of the outdoor pollutants is not less than the concentration of the indoor pollutants), starting the PM2.5 purification device at the k +1 th moment; when the indoor unit is in cooling or heating operation, the rotating frequency of the fan is determined by the cooling and heating load of the air conditioner and the control logic of the air conditioner;
step S606, at the k-th time, if TindoorLess than Tset(refrigeration) or TindoorGreater than Tset(heating), the air conditioner internal unit is closed, and the opening and closing and the rotating frequency of the fan are controlled by PM2.5 concentration at the moment:
(1)CPM2.5,indoorgreater than 75ug/m3(namely the concentration of the indoor pollutants is greater than or equal to the second concentration threshold), starting a PM2.5 purification device of the air conditioner, and operating the fan at a fourth gear wind speed (namely the first rotating speed);
(2) if C is presentPM2.5,indoorLess than 35ug/m3,Pair,outdoorNot less than (P)air,in+5Pa) and CPM2.5,outdoorMore than 50ug/m3(i.e., the concentration of the indoor pollutants is less than the third concentration threshold, the gas pressureThe difference is not less than the second pressure difference threshold, and the concentration of outdoor pollutants is greater than the fourth concentration threshold), at the (k + 1) th moment, a PM2.5 purification device of the air conditioner is started, and the fan operates at the first gear (namely, the fourth rotating speed);
(3) if C is presentPM2.5,indoorNot less than 35ug/m3And less than 75ug/m3(namely when the indoor pollutant concentration is greater than or equal to the third concentration threshold and less than the second concentration threshold), judging according to the following conditions:
(3.1) if Pair,outdoorIs less than (P)air,in+5Pa) (namely the air pressure difference value is smaller than a second pressure difference threshold), at the (k + 1) th moment, starting a PM2.5 purifying device of the air conditioner, and operating the fan at a first gear;
(3.2) if Pair,outdoorGreater than (P)air,in+5Pa), and CPM2.5,outdoorGreater than 75ug/m3(namely the air pressure difference value is greater than the second pressure difference threshold value, and the outdoor pollutant concentration is greater than the fourth concentration threshold value), at the k +1 th moment, the PM2.5 purifying device of the air conditioner is started, and the fan runs at a third gear (namely, a second rotating speed);
(3.3) if Pair,outdoorGreater than (P)air,in+5Pa), and CPM2.5,outdoorGreater than CPM2.5indoorBut less than 75ug/m3(namely the air pressure difference value is greater than the second pressure difference threshold value, the outdoor pollutant concentration is greater than the indoor pollutant concentration, and the outdoor pollutant concentration is less than the fourth concentration threshold value), then at the k +1 th moment, the PM2.5 purifying device of the air conditioner is started, and the fan runs at the second gear (namely the third rotating speed);
(4) and otherwise, the PM2.5 purifier and the internal machine fan are turned off.
At the k +1 th time (i.e., the next time, the time interval is suggested to be 15 minutes), the above steps S602 to S604 are repeated.
The technical scheme of the invention is explained in detail in the above with reference to the attached drawings, and through the technical scheme of the invention, the operation of the purification device and the fan can be determined according to the operation state of the heat exchange device and the concentration of indoor pollutants, so that the purification control is not only according to the concentration of the indoor pollutants, but also considering different operation states of the heat exchange device, and the comprehensive requirements of users on heat comfort and air quality are met.
Further, it will be understood that any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and that the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware that is related to instructions of a program, and the program may be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A control method is used for an indoor unit, and is characterized in that the indoor unit comprises a fan, a purification device and a heat exchange device, and the control method comprises the following steps:
acquiring an environmental parameter corresponding to the indoor unit;
determining the opening and closing of the heat exchange device according to the indoor temperature and the set temperature in the environmental parameters;
and determining the operation of the purification device and the fan according to the operation state of the heat exchange device and the concentration of the indoor pollutants in the environmental parameters.
2. The control method according to claim 1, wherein before the determining of the opening and closing of the heat exchanging device according to the indoor temperature and the set temperature in the environmental parameter, the method further comprises:
determining a heat exchange mode of the indoor unit;
and controlling the operation of the heat exchange device and the fan according to the heat exchange mode.
3. The control method according to claim 2,
when the heat exchange mode is a refrigeration mode, the determining of the opening and closing of the heat exchange device according to the indoor temperature and the set temperature in the environmental parameters specifically comprises: if the indoor temperature is higher than the set temperature, controlling the heat exchange device to operate in a refrigerating mode, controlling the fan to operate correspondingly to the heat exchange device, and otherwise, controlling the heat exchange device to stop operating; or
When the heat exchange mode is a heating mode, determining the on-off of the heat exchange device according to the indoor temperature and the set temperature in the environmental parameters specifically comprises: and if the indoor temperature is lower than the set temperature, controlling the heat exchange device to heat and operate, controlling the fan and the heat exchange device to operate correspondingly, and otherwise, controlling the heat exchange device to stop operating.
4. The control method of claim 2, wherein the environmental parameters further include outdoor contaminant concentration, indoor air pressure, and outdoor air pressure, the control method further comprising:
when the heat exchange device is in refrigeration operation or heating operation, determining the concentration of the indoor pollutants, the concentration of the outdoor pollutants, and the pressure difference value between the outdoor air pressure and the indoor air pressure;
controlling the operation of the purification device when the indoor pollutant concentration is greater than or equal to a first concentration threshold; or
And when the indoor pollutant concentration is smaller than the first concentration threshold value, the air pressure difference value is not smaller than the first air pressure threshold value and the outdoor pollutant concentration is not smaller than the indoor pollutant concentration, controlling the purification device to operate.
5. The control method according to claim 3, characterized by further comprising:
and when the heat exchange device stops operating, determining the operation of the purification device and the fan according to the concentration of the indoor pollutants.
6. The control method according to claim 5, wherein the environmental parameters further include an outdoor pollutant concentration, an indoor air pressure, and an outdoor air pressure, and the determining the operation of the purification apparatus and the fan according to the indoor pollutant concentration specifically includes:
when the concentration of the indoor pollutants is greater than or equal to a second concentration threshold value, starting the purification device, and controlling the fan to operate at a first rotating speed; or
And when the concentration of the indoor pollutants is less than the second concentration threshold value, starting the purification device, and controlling the operation of the fan according to the air pressure difference value between the outdoor air pressure and the indoor air pressure and the concentration of the outdoor pollutants.
7. The control method according to claim 6, wherein the controlling the operation of the fan according to the air pressure difference between the outdoor air pressure and the indoor air pressure and the outdoor pollutant concentration specifically comprises:
when the indoor pollutant concentration is smaller than a third concentration threshold, if the air pressure difference value is not smaller than a second pressure difference threshold and the outdoor pollutant concentration is larger than a fourth concentration threshold, controlling the fan to operate at a fourth rotating speed,
wherein the third concentration threshold is smaller than the second concentration threshold, the fourth concentration threshold is larger than the third concentration threshold, and the fourth rotation speed is smaller than the first rotation speed.
8. The control method according to claim 7, wherein the controlling the operation of the fan according to the air pressure difference between the outdoor air pressure and the indoor air pressure and the outdoor pollutant concentration specifically comprises:
when the indoor pollutant concentration is greater than or equal to the third concentration threshold and less than the second concentration threshold,
if the air pressure difference value is smaller than the second pressure difference threshold value, controlling the fan to operate at the fourth rotating speed;
if the air pressure difference value is greater than or equal to the second pressure difference threshold value and the outdoor pollutant concentration is greater than or equal to the fourth concentration threshold value, controlling the fan to operate at a second rotating speed;
if the air pressure difference value is greater than or equal to the second pressure difference threshold value, the outdoor pollutant concentration is greater than the indoor pollutant concentration, and the outdoor pollutant concentration is less than the fourth concentration threshold value, controlling the fan to operate at a third rotating speed,
wherein the second rotational speed is greater than the third rotational speed, which is greater than the fourth rotational speed.
9. An air conditioner, comprising:
the indoor unit and the outdoor unit are connected through pipelines, and a fan, a purification device and a heat exchange device are arranged in the indoor unit;
a memory and a processor, the memory having stored thereon a computer program operable on the processor;
wherein the processor is electrically connected with the fan, the purification device and the heat exchange device, and the steps of the control method according to any one of claims 1 to 8 are realized when the processor executes the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the control method according to any one of claims 1 to 8.
CN202010429528.6A 2020-05-20 2020-05-20 Control method, air conditioner, and computer-readable storage medium Pending CN113701327A (en)

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Application publication date: 20211126