CN109405213B - Air conditioner, control method and device thereof and readable storage medium - Google Patents
Air conditioner, control method and device thereof and readable storage medium Download PDFInfo
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- CN109405213B CN109405213B CN201811266287.7A CN201811266287A CN109405213B CN 109405213 B CN109405213 B CN 109405213B CN 201811266287 A CN201811266287 A CN 201811266287A CN 109405213 B CN109405213 B CN 109405213B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
- F24F2120/12—Position of occupants
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- 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
Abstract
The invention discloses an air conditioner control method, which comprises the following steps: acquiring relevant parameters of human comfort and the temperature of an air return inlet of the air conditioner in an air conditioner acting space; the human body comfort related parameters comprise measuring point temperature and measuring point wind speed of the position of the target user; determining the temperature of a target measuring point and the wind speed of the target measuring point at the position of a target user according to preset human body thermal comfort value and human body comfort related parameters; controlling the air conditioner to operate according to the temperature of the measuring point, the temperature of the target measuring point and the temperature of the return air inlet; after the preset time, when the acting space of the air conditioner does not meet the comfort requirement, the control device of the air conditioner, the air conditioner and the readable storage medium are used. The invention realizes that the comfort requirement of the user can be met at different positions in the air conditioner action space, and the comfort of the user in the air conditioner action space is more effectively improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner control method, an air conditioner control device, an air conditioner and a readable storage medium.
Background
The adjustment of the air conditioner to the indoor temperature is generally realized through the frequency of a compressor, the rotating speed of a fan or the opening degree of a throttle valve at present, the indoor temperature is often enabled to reach the set temperature, but the coordination among all the operation parameters of the air conditioner is poor, and the comfort of a user is affected.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide an air conditioner control method, which aims to coordinately control the air speed and the temperature of an air conditioner and improve the comfort of users.
In order to achieve the above object, the present invention provides an air conditioner control method, including the steps of:
acquiring relevant parameters of human body comfort degree and the temperature of an air return inlet of the air conditioner in an air conditioner acting space; the human body comfort related parameters comprise measuring point temperature and measuring point wind speed of the position of the target user;
determining the temperature of a target measuring point and the wind speed of the target measuring point at the position of the target user according to a preset human body thermal comfort value and the human body comfort related parameters;
controlling the air conditioner to operate according to the temperature of the measuring point, the temperature of the target measuring point and the temperature of the return air inlet; and
and after the preset time, when the action space of the air conditioner does not meet the comfort requirement, controlling the air conditioner to operate according to the temperature of the target measuring point and the wind speed of the target measuring point.
Optionally, the step of obtaining the human comfort related parameter includes:
acquiring the distance between the target user and the air conditioner, and acquiring the current air outlet temperature and air outlet speed of the air conditioner;
determining the temperature of a measuring point in the human body comfort related parameters according to the air outlet temperature and the distance; and determining the wind speed of a measuring point in the human body comfort related parameters according to the wind speed of the outlet air and the distance.
Optionally, the step of controlling the operation of the air conditioner according to the temperature of the target measuring point and the wind speed of the target measuring point comprises:
determining the target air-out temperature of the air conditioner according to the target measuring point temperature and the distance, and determining the target air-out wind speed of the air conditioner according to the target measuring point wind speed and the distance;
determining a target frequency of a compressor of the air conditioner according to the target outlet air temperature; determining a target rotating speed of a fan of the air conditioner according to the target outlet air speed;
and controlling the compressor to operate according to the target frequency, and controlling the fan to operate according to the target rotating speed.
Optionally, the fan includes two axial flow wind wheels, the two axial flow wind wheels are arranged oppositely, and the step of determining the target rotation speed of the fan of the air conditioner according to the target outlet wind speed includes:
and determining the target rotating speed of each axial flow wind wheel according to the target outlet wind speed.
Optionally, the step of controlling the operation of the air conditioner according to the temperature of the measuring point, the temperature of the target measuring point and the temperature of the return air inlet includes:
comparing the temperature of the measuring point with the temperature of the target measuring point to obtain a first size relation; comparing the temperature of the target measuring point with the temperature of the return air inlet to obtain a second size relation;
and adjusting the running frequency of a compressor and/or the running speed of a fan of the air conditioner according to the first size relation and the second size relation.
Optionally, after the step of controlling the operation of the air conditioner according to the temperature of the measuring point, the temperature of the target measuring point, and the temperature of the return air inlet, the method further includes:
acquiring current human body comfort related parameters in an air conditioner acting space after preset time;
determining a predicted average heat sensation index according to the current human body comfort related parameters;
and when the predicted average thermal sensation index does not meet the preset thermal comfort condition, judging that the air conditioner action space does not meet the comfort requirement.
Optionally, the step of determining the temperature of the target measuring point and the wind speed of the target measuring point at the position of the target user according to the preset human body thermal comfort value and the human body comfort related parameter includes:
calculating the temperature of the target measuring point according to a preset human body thermal comfort sensing value, the measuring point wind speed and a preset comfort formula; and calculating the wind speed of the target measuring point according to the preset human body thermal comfort value, the measuring point temperature and a preset comfort formula.
In order to achieve the above object, the present invention also provides an air conditioner control device including: the air conditioner control method comprises a memory, a processor and an air conditioner control program stored on the memory and capable of running on the processor, wherein the air conditioner control program realizes the steps of the air conditioner control method according to any one of the above items when being executed by the processor.
In addition, in order to achieve the above object, the present invention also provides an air conditioner including the air conditioner control device as described above.
Further, in order to achieve the above object, the present invention also proposes a readable storage medium having stored thereon an air conditioner control program which, when executed by a processor, realizes the steps of the air conditioner control method as set forth in any one of the above.
According to the air conditioner control method provided by the embodiment of the invention, the temperature of the target measuring point and the air speed of the target measuring point at the position of the target user are determined through the human body comfort related parameters and the preset human body thermal comfort sensing value, the air conditioner is controlled to operate by integrating the temperature of the measuring point, the temperature of the target measuring point and the air return opening, and the control accuracy of the air conditioner can be prevented from being influenced by the fact that the temperature distribution in the acting space of the air conditioner is not uniform. In addition, after the preset time, when the air conditioner action space does not meet the comfort requirement, the air conditioner operates coordinately according to the temperature of the target measuring point and the wind speed of the target measuring point, so that the comfort requirement of a user can be met at different positions in the air conditioner action space, and the comfort of the user in the air conditioner action space is improved more effectively.
Drawings
Fig. 1 is a schematic diagram of a hardware structure of an air conditioner control device according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a control method of an air conditioner according to a first embodiment of the present invention;
FIG. 3 is a flowchart illustrating a second embodiment of a method for controlling an air conditioner according to the present invention;
FIG. 4 is a flow chart illustrating a third embodiment of a method for controlling an air conditioner according to the present invention;
fig. 5 is a flowchart illustrating a fourth embodiment of a method for controlling an air conditioner according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows: acquiring relevant parameters of human comfort and the temperature of an air return inlet of the air conditioner in an air conditioner acting space; the human body comfort related parameters comprise measuring point temperature and measuring point wind speed of the position of the target user; determining the temperature of a target measuring point and the wind speed of the target measuring point at the position of a target user according to preset human body thermal comfort value and human body comfort related parameters; controlling the air conditioner to operate according to the temperature of the measuring point, the temperature of the target measuring point and the temperature of the return air inlet; and after the preset time, when the action space of the air conditioner does not meet the comfort requirement, controlling the air conditioner to operate according to the temperature of the target measuring point and the wind speed of the target measuring point.
Due to the prior art, the coordination among all the operation parameters of the air conditioner is poor, and the comfort of a user is influenced.
The invention provides a solution, which can realize that users can meet the comfort requirement at different positions in the air conditioner action space, and can more effectively improve the comfort of the users in the air conditioner action space.
The embodiment of the invention provides an air conditioner. The air conditioner can be specifically a variable frequency air conditioner, a direct frequency air conditioner and the like. The air conditioner can be a cooling operation, a heating operation or an air conditioner with the cooling operation and the heating operation capable of being switched. The air conditioner includes an air conditioner control device.
As shown in fig. 1, the air conditioner control device may include: the processor 1001 is, for example, a CPU, a memory 1002, a temperature sensor 1003, a wind speed sensor 1004, or the like. The memory 1002 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). The memory 1002 may alternatively be a storage device separate from the processor 1001.
The temperature sensors 1003 are in communication connection with the processor, and the number and the positions of the temperature sensors 1003 can be set according to actual requirements. Specifically, the temperature sensor 1003 is arranged at an air outlet of the air conditioner and can be used for detecting the air outlet temperature of the air conditioner; the temperature sensor 1003 is arranged at the air return inlet of the air conditioner and can be used for detecting the temperature of the air return inlet of the air conditioner; the temperature sensor 1003 is arranged on the outer wall of the coil pipe of the air conditioner and can be used for detecting the temperature of the coil pipe of the air conditioner; the temperature sensor 1003 can be arranged at any position in the air conditioner acting space and used for detecting the ambient temperature of the air conditioner acting space; the temperature sensor 1003 can be arranged at the position of a target user in the air conditioner action space and used for detecting the temperature of a measuring point at the position of the target user, wherein the target user is a user of the air conditioner which needs to meet the comfort requirement of the air conditioner; the number and the position of the temperature sensors 1003 can be set according to actual requirements. Specifically, other requirements are set at other positions, which are not described herein.
The wind speed sensors 1004 are in communication with the processor, and the number and positions of the wind speed sensors 1004 can be set according to actual requirements. Specifically, the wind speed sensor 1004 may be disposed at an air outlet of the air conditioner for detecting an outlet wind speed of the air conditioner; the wind speed sensor 1004 may be disposed at a location of a target user in the air conditioner active space for detecting a measured point wind speed of the target user.
Those skilled in the art will appreciate that the configuration of the apparatus shown in fig. 1 is not intended to be limiting of the apparatus and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, an air conditioner control program may be included in the memory 1002, which is a kind of computer storage medium. In the apparatus shown in fig. 1, the processor 1001 may be configured to call an air conditioner control program stored in the memory 1002 and perform the following operations of the steps associated with the air conditioner control method.
Furthermore, an embodiment of the present invention further provides a readable storage medium, such as the above-mentioned memory 1002, having an air conditioner control program stored thereon, where the air conditioner control program, when executed by the processor, implements the following operations related to the air conditioner control method.
Referring to fig. 2, an embodiment of the present invention provides an air conditioner control method, including:
step S10, acquiring relevant parameters of human body comfort degree and air return inlet temperature of the air conditioner in an air conditioner acting space; the human body comfort related parameters comprise measuring point temperature and measuring point wind speed of the position of the target user;
the air conditioner action space is a space range for realizing temperature regulation through refrigeration operation or heating operation of the air conditioner, and the air conditioner action space can be a bedroom, a living room, an office and the like.
Before obtaining the parameters related to the comfort level of the human body, the current operation mode of the air conditioner may be determined, and step S10 is executed when the operation mode of the air conditioner is the PMV mode.
PMV (Predicted Mean volume note Predicted average thermal sensation index) is an evaluation index representing human thermal response (thermal sensation), represents the average of the thermal sensations of most people in the same environment, and defines parameters affecting PMV as human comfort related parameters. The human body comfort related parameters can comprise measuring point temperature and measuring point wind speed, in addition, the human body comfort related parameters can also comprise radiation temperature, human body activity, clothing condition and the like, other human body comfort related parameters such as relative humidity, radiation temperature, human body activity, clothing condition and the like are obtained while the measuring point temperature and the measuring point wind speed are obtained, and the PMV value can be calculated according to the human body comfort related parameters to obtain corresponding human body thermal comfort feeling.
The temperature of the measuring point is the temperature of the position of the target user, and can be directly detected by a temperature sensor arranged at the position of the target user (such as a portable intelligent device with a temperature detection function worn by the target user), or can be determined according to the current air-out temperature of the air conditioner and the position characteristic parameters of the target user by acquiring the current air-out temperature of the air conditioner and the position characteristic parameters of the target user.
The wind speed of the measuring point is the wind speed of the position of the target user, and can be directly detected by a wind speed sensor (such as a portable intelligent device with a wind speed detection function worn by the target user) arranged at the position of the target user, or can be determined according to the current wind speed and the position characteristic parameters of the target user by acquiring the current wind speed of the air conditioner and the position characteristic parameters of the target user.
The position characteristic parameters specifically comprise distance information and/or angle information, the distance information is the distance between the target user and the air conditioner, and the angle information is the angle of the target user deviating from the front face of the air conditioner. The method comprises the following steps of defining a plane perpendicular to the plane of an air outlet of the air conditioner as a reference plane, selecting a reference point at the intersection part of the reference plane and the plane of the air outlet of the air conditioner, defining the connection line between the position of a target user and the reference point as a reference line, defining the included angle between the reference line and the reference plane as the angle of the target user deviating from the front face of the air conditioner, and defining the reference line as the distance between the target user and the air conditioner.
Specifically, step S10 may include:
step S11, acquiring the distance between a target user and the air conditioner, and acquiring the current air outlet temperature and air outlet speed of the air conditioner;
the distance between the target user and the air conditioner can be detected through a positioning device (such as a radio frequency positioning device, an infrared positioning device and the like) arranged on the air conditioner, a preset coordinate system can also be established in the action space of the air conditioner, a reference point (such as the middle point of the air conditioner and the like) is selected on the air conditioner as the reference coordinate of the air conditioner, the position of the target user can be provided with a positioning device to determine the current measuring point coordinate of the target user, and the distance between the target user and the air conditioner is obtained through calculation of the reference coordinate and the measuring point coordinate.
Step S12, determining the temperature of the measuring point in the parameters related to the comfort degree of the human body according to the air outlet temperature and the distance; and determining the wind speed of a measuring point in the human body comfort related parameters according to the wind speed and the distance of the outlet air.
And a first quantity relation between the air outlet temperature and the measuring point temperature is established in advance according to the change rule of the air outlet temperature along with the distance, and the measuring point temperature of the position of the target user can be calculated according to the established first quantity relation, the distance and the current air outlet temperature.
Because the air outlet of the air conditioner is formed by the air flow in the air duct disturbed by the fan, a certain corresponding relation exists between the running rotating speed of the fan and the air outlet speed of the air conditioner. The larger the running rotating speed of the fan is, the larger the air outlet speed of the air conditioner is. Therefore, the corresponding air outlet speed of the air conditioner can be determined according to the current running rotating speed of the fan. And a second quantity relation between the air outlet speed and the measured point wind speed is established in advance according to the change rule of the air outlet speed along with the distance, and the measured point wind speed of the position of the target user can be calculated according to the established second quantity relation, the distance and the current air outlet speed.
Step S20, determining the temperature of a target measuring point and the wind speed of the target measuring point at the position of a target user according to the preset human body thermal comfort value and the human body comfort related parameters;
the preset human thermal comfort value is a set value of an estimated average thermal sensation index which is formulated according to the thermal comfort requirement of a target user and can be used as a standard value for judging whether the target user is in a comfortable state currently. When the current PMV value is equal to or within a preset interval in which a preset human thermal comfort value is located, the target user can be considered to be in a comfortable state.
After the parameters related to the human body comfort degree are obtained, the current PMV can be obtained by substituting the parameters related to the human body comfort degree (measuring point temperature, relative humidity, measuring point wind speed, radiation temperature, human body activity, clothing condition and the like) into a preset comfort degree formula. The preset comfort formula may be specifically set according to specific comfort requirements, current environmental characteristics, and the like.
Specifically, step S20 includes: calculating the temperature of the target measuring point according to a preset human body thermal comfort sensing value, the measuring point wind speed and a preset comfort formula; and calculating the wind speed of the target measuring point according to a preset human body thermal comfort value, the measuring point temperature and a preset comfort formula.
When the target measuring point temperature is determined, the measuring point temperature in a preset comfort formula is used as unknown quantity, other parameters such as measuring point wind speed and the like of parameters related to human body comfort except the measuring point temperature are used as known quantity, a preset human body thermal comfort value is used as a predicted average thermal sensation index, an equation only containing the measuring point temperature as the unknown quantity is formed, the solution of the equation is worked out to be used as a target value of the target measuring point temperature, and the target value of the measuring point temperature is defined as the target measuring point temperature.
When the wind speed of a target measuring point is determined, the wind speed of the measuring point in a preset comfort formula is used as an unknown quantity, other parameters such as the temperature of the measuring point except the wind speed of the measuring point of a human body comfort related parameter are used as known quantities, a preset human body thermal comfort value is used as a predicted average thermal sensation index, an equation only containing the wind speed of the measuring point as the unknown quantity is formed, the solution of the equation is worked out to be used as a target value of the wind speed of the measuring point, and the target value of the wind speed of the measuring point is defined as the.
In addition, the corresponding relation between the temperature of the target measuring point and the wind speed of the target measuring point can be preset according to comfort requirements, different temperatures of the target measuring point correspond to different wind speeds of the target measuring point, and different preset thermal comfort values of the human body correspond to different corresponding relations between the temperature of the target measuring point and the wind speed of the target measuring point. After the temperature of the target measuring point is calculated in the above way, the wind speed of the target measuring point corresponding to the temperature of the target measuring point can be determined according to the corresponding relation; and after the wind speed of the target measuring point is calculated in the above way, the temperature of the target measuring point corresponding to the wind speed of the target measuring point is determined according to the corresponding relation.
Step S30, controlling the air conditioner to operate according to the temperature of the measuring point, the temperature of the target measuring point and the temperature of the return air inlet;
and adjusting the running frequency of a compressor of the air conditioner according to the temperature of the measuring point, the temperature of the target measuring point and the temperature of the return air inlet, and/or adjusting the running rotating speed of a fan of the air conditioner according to the temperature of the measuring point, the temperature of the target measuring point and the temperature of the return air inlet.
Specifically, referring to fig. 3, step S30 includes:
step S31, comparing the temperature of the measuring point with the temperature of the target measuring point to obtain a first size relation; comparing the temperature of the target measuring point with the temperature of the return air inlet to obtain a second size relation;
the first size relationship comprises that the temperature of the measuring point is greater than the temperature of the target measuring point, the temperature of the measuring point is less than the temperature of the target measuring point or the temperature of the measuring point is equal to the temperature of the target measuring point.
The second size relationship comprises that the temperature of the target measuring point is less than the temperature of the return air inlet, the temperature of the target measuring point is greater than or equal to the temperature of the air inlet or the temperature of the target measuring point is equal to the temperature of the return air inlet.
And step S32, adjusting the operation frequency of the compressor and/or the operation speed of the fan of the air conditioner according to the first size relation and the second size relation.
The combination of the first size relation and the second size relation can correspond to the adjusting modes of different air conditioners, only the running frequency of the compressor can be adjusted, only the running speed of the fan can be adjusted, or the running frequency of the compressor and the running speed of the fan can be adjusted at the same time.
Specifically, step S32 includes the following steps:
step S321, when the current operation state of the air conditioner is heating operation, and when the temperature of the return air inlet is lower than the temperature of the target measuring point and the temperature of the measuring point is lower than the temperature of the target measuring point, the operation frequency of the compressor is increased;
as the temperatures of the target measuring points are all higher than the temperatures of the measuring points and the temperature of the return air inlet, the temperatures in the acting space of the air conditioner are all lower, and the air outlet temperature of the air conditioner can be increased by increasing the running frequency of the compressor, so that the air outlet temperature of the air conditioner is increased, more heat is emitted to the acting space of the air conditioner, and the temperature of the position of a target user can reach the temperature of the target measuring points.
Furthermore, the running speed of the fan can be increased after the running speed of the compressor is increased for the preset time, so that hot air blown out by the air conditioner can quickly reach the position of a target user, and the temperature of the position of the target user can quickly reach the temperature of a target measuring point.
Step S322, when the temperature of the return air inlet is lower than the temperature of the target measuring point and the temperature of the measuring point is higher than the temperature of the target measuring point, reducing the running frequency of the compressor and increasing the running speed of the fan;
when the temperature of the return air inlet is lower than the temperature of the target measuring point and the temperature of the measuring point is higher than the temperature of the target measuring point, the operation frequency of the compressor can be reduced, the temperature of the air outlet is reduced, the temperature of the position of a target user is prevented from being continuously increased, meanwhile, the operation rotating speed of the fan is increased, on one hand, the air speed in the action space of the air conditioner is increased, so that the air with higher temperature at the position of the target user can circulate to other positions with lower temperature for heat exchange, on the other hand, the air with temperature lower than the temperature of the measuring point can rapidly circulate to the position of the target user for heat absorption, and therefore.
Step S323, when the temperature of the return air inlet is higher than the temperature of the target measuring point and the temperature of the measuring point is lower than the temperature of the target measuring point, the running speed of the fan is increased;
when the temperature of the return air inlet is higher than the temperature of the target measuring point and the temperature of the measuring point is lower than the temperature of the target measuring point, the operating speed of the fan can be increased, so that air with higher temperature can rapidly circulate to the position of the target user, the temperature of the position of the target user can be increased, and the temperature of the position of the target user can reach the temperature of the target measuring point.
In addition, when the temperature difference between the temperature of the measuring point and the temperature of the target measuring point is greater than or equal to a preset threshold value, the running rotating speed of the fan is increased, and meanwhile, the running frequency of the compressor is increased, so that the air outlet temperature of the air conditioner is increased, and the speed of enabling the temperature of the position where a target user is located to reach the temperature of the target measuring point is increased.
And S324, when the temperature of the return air inlet is greater than the temperature of the target measuring point and the temperature of the measuring point is greater than the temperature of the target measuring point, reducing the running frequency of the compressor.
When the temperature of the return air inlet and the temperature of the measuring point are both higher than the temperature of the target measuring point, the temperature of the whole environment in the acting space of the air conditioner is higher, the air outlet temperature of the air conditioner can be reduced by reducing the running frequency of the compressor, the temperature of the position of a target user is prevented from continuously rising, and the temperature of the position of the target user is reduced to the temperature of the target measuring point through natural heat exchange.
Through the steps S321 to S324, when the air conditioner is operated in a heating mode, the air conditioner adapts to different temperature distribution characteristics in the air conditioner acting space by different combinations of the first size relationship and the second size relationship, and the operating frequency of the compressor and/or the operating speed of the fan of the air conditioner are correspondingly adjusted, so that the temperature of the position where the target user is located can reach the temperature of the target measuring point, and the user can be guaranteed to meet the thermal comfort requirement at different positions in the air conditioner acting space. In addition, the control of the air conditioner during cooling operation may also be set by referring to the adjustment principle during heating operation, which is not described herein.
And step S40, after the preset time, when the acting space of the air conditioner does not meet the comfort requirement, controlling the air conditioner to operate according to the temperature of the target measuring point and the wind speed of the target measuring point.
The length of the preset time can be set according to actual requirements, and the air conditioner is controlled to maintain the current state and operate for the preset time, so that the adjusting effect of the step S30 can be fully exerted, and the acting space of the air conditioner can be ensured to be in a relatively stable state.
After the preset time, when the action space of the air conditioner does not meet the comfort requirement, the operation of a compressor of the air conditioner can be controlled according to the temperature of the target measuring point, and the operation of a fan of the air conditioner can be controlled according to the air speed of the target measuring point.
Referring to fig. 4, after the preset time, when the air conditioner action space does not meet the comfort requirement, controlling the air conditioner to operate according to the temperature of the target measuring point and the wind speed of the target measuring point specifically comprises the following steps:
step S41, determining the target air-out temperature of the air conditioner according to the temperature and the distance of the target measuring point, and determining the target air-out speed of the air conditioner according to the speed and the distance of the target measuring point;
and calculating the target air outlet temperature of the air conditioner according to the established first quantity relationship, the distance between the target user and the air conditioner and the target measuring point temperature. And calculating to obtain the target air outlet speed of the air conditioner according to the established second numerical relation, the distance between the target user and the air conditioner and the target measuring point wind speed.
Step S42, determining the target frequency of the compressor of the air conditioner according to the target outlet air temperature; determining a target rotating speed of a fan of the air conditioner according to the target outlet air speed;
different target air-out temperatures can be correspondingly provided with different compressor operating frequencies, and the target frequency of the corresponding compressor can be determined according to the target air-out temperature. Different target air outlet speeds can be correspondingly provided with different fan operation rotating speeds, and the corresponding target rotating speed can be determined according to the target air outlet speed.
And step S43, controlling the compressor to operate according to the target frequency and controlling the fan to operate according to the target rotating speed.
And controlling the compressor of the air conditioner to operate according to the target frequency, so that the current air outlet temperature in the air conditioner acting space can reach the target air outlet temperature, and controlling the compressor of the air conditioner to operate according to the target rotating speed, so that the current air outlet speed in the air conditioner acting space can reach the target air outlet speed.
The target measuring point temperature and the target measuring point wind speed are target values determined after the thermal comfort feeling of the human body is comprehensively considered, so that the method has better coordination. The target measuring point temperature and the target measuring point wind speed take the attenuation effect of the space on the temperature and the wind speed into consideration, the target air-out temperature and the target air-out wind speed are determined by combining the distance between the target user and the air conditioner, and the operation of the air conditioner is controlled by the coordination of the target air-out temperature and the target air-out wind speed, so that the thermal comfort requirement of the target user is effectively guaranteed.
In addition, the corresponding frequency adjustment amplitude can be determined according to the temperature difference between the target measuring point temperature and the temperature before the current measuring point temperature, and the running frequency of the compressor can be increased or reduced according to the determined frequency adjustment amplitude; and the corresponding rotating speed adjusting amplitude can be determined according to the wind speed difference between the wind speed of the target measuring point and the wind speed of the current measuring point, and the running frequency of the compressor is increased or reduced according to the determined frequency adjusting amplitude.
In the air conditioner control method provided in this embodiment, the temperature of the target measurement point and the air speed of the target measurement point at the position of the target user are determined according to the human body comfort related parameter and the preset human body thermal comfort value, and the temperature of the measurement point, the temperature of the target measurement point and the temperature of the return air inlet are synthesized to control the operation of the air conditioner, so that the control accuracy of the air conditioner can be prevented from being affected by the uneven temperature distribution in the air conditioner acting space. In addition, after the preset time, when the air conditioner action space does not meet the comfort requirement, the air conditioner operates coordinately according to the temperature of the target measuring point and the wind speed of the target measuring point, so that the comfort requirement of a user can be met at different positions in the air conditioner action space, and the comfort of the user in the air conditioner action space is improved more effectively.
Further, the fan comprises two axial flow wind wheels which are arranged oppositely, and the step of determining the target rotating speed of the fan of the air conditioner according to the target air outlet speed comprises the following steps:
and step S421, determining the target rotating speed of each axial flow wind wheel according to the target outlet wind speed.
The fan is specifically a counter-rotating fan. The two axial flow wind wheels rotate in opposite directions to disturb air in an air duct of the air conditioner to form wind flow. And determining the target rotating speed of each axial flow wind wheel according to the target air outlet speed, so that the two axial flow wind wheels rotate in a matched manner to enable the air outlet speed of the air conditioner to reach the target air outlet speed.
In this embodiment, the target air outlet speed is achieved by setting the cyclone fan, so that the target measuring point speed is achieved, and the air outlet efficiency of the air conditioner is improved.
The mode of judging whether the air conditioner action space meets the comfort requirement can be various, and particularly, the comfort of a user is improved as the coordination of parameters such as temperature, wind degree and the like is better, so that the current estimated average heat sensation index can be determined in order to accurately judge whether the air conditioner action space meets the comfort requirement of a target user. Referring to fig. 5, after step S30, the method further includes:
step S401, obtaining current human body comfort related parameters in an air conditioner action space after preset time;
step S402, determining a predicted average heat sensation index according to the current human body comfort related parameters;
after the preset time, calculating the current estimated average thermal sensation index according to the current human body comfort degree related parameters to judge whether the current air conditioner acting space meets the thermal comfort requirement of a target user. The current PMV can be obtained by substituting relevant parameters of human body comfort degree (measuring point temperature, relative humidity, measuring point wind speed, radiation temperature, human body activity, clothing condition and the like) into a preset comfort degree formula. The preset comfort formula may be specifically set according to specific comfort requirements, current environmental characteristics, and the like.
And step S403, when the average thermal sensation index is not expected to meet the preset thermal comfort condition, judging that the air conditioner action space does not meet the comfort requirement.
After the predicted average thermal sensation index is obtained, whether the predicted average thermal sensation index is equal to a preset human thermal comfort sensation value or whether the predicted average thermal sensation index is located in a preset interval where the preset human thermal comfort sensation value is located can be judged, if yes, the predicted average thermal sensation index is judged to meet the preset thermal comfort condition, and if not, the predicted average thermal sensation index is judged to not meet the preset thermal comfort condition.
And when the average thermal sensation index is estimated to meet the preset thermal comfort condition, the air conditioner acting space is considered to meet the comfort requirement of the target user.
Besides, whether the action space of the air conditioner meets the comfort requirement or not can be judged by predicting the average heat sensation index, the temperature of the current measuring point can be compared with the temperature of the target measuring point, and the wind speed of the current measuring point can be compared with the wind speed of the target measuring point. If the temperature of the current measuring point is equal to the temperature of the target measuring point, or the difference value between the temperature of the current measuring point and the temperature of the target measuring point is less than or equal to a first preset threshold value, the acting space of the air conditioner can be judged to meet the comfort requirement of a target user; if the temperature of the current measuring point is not equal to the temperature of the target measuring point, or the difference value between the temperature of the current measuring point and the temperature of the target measuring point is larger than a first preset threshold value, the action space of the air conditioner can be judged to not meet the comfort requirement of a target user.
Before the step of determining the temperature of the target measuring point and the wind speed of the target measuring point at the position of the target user according to the preset human body thermal comfort value and the related parameters of the human body comfort, the method further comprises the following steps:
step S00, determining a predicted average heat sensation index according to the relevant parameters of the human comfort level;
after the parameters related to the comfort of the human body are obtained, the current PMV can be obtained by substituting the parameters related to the comfort of the human body (temperature of a measuring point, relative humidity, wind speed of the measuring point, radiation temperature, activity of the human body, clothing condition and the like) into a preset comfort formula. The preset comfort formula may be specifically set according to specific comfort requirements, current environmental characteristics, and the like.
Step S01, judging whether the average thermal sensation index meets the preset thermal comfort condition;
if not, determining the temperature of the target measuring point and the wind speed of the target measuring point at the position of the target user according to the preset human body thermal comfort value and the human body comfort related parameters;
if yes, go to step S02.
After the predicted average thermal sensation index is obtained, whether the predicted average thermal sensation index is equal to a preset human thermal comfort sensation value or whether the predicted average thermal sensation index is located in a preset interval where the preset human thermal comfort sensation value is located can be judged, if yes, the predicted average thermal sensation index is judged to meet the preset thermal comfort condition, and if not, the predicted average thermal sensation index is judged to not meet the preset thermal comfort condition.
And step S02, controlling the air conditioner to operate according to the current state.
By the mode, when a user in the air conditioner acting space is uncomfortable, the operation of the air conditioner can be timely adjusted in a coordinated mode through the target air outlet temperature and the target air outlet speed, so that the environment of the air conditioner acting space can meet the comfort requirement of the user.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An air conditioner control method, characterized by comprising the steps of:
acquiring relevant parameters of human body comfort degree and the temperature of an air return inlet of the air conditioner in an air conditioner acting space; the human body comfort related parameters comprise measuring point temperature and measuring point wind speed of the position of the target user;
determining the temperature of a target measuring point and the wind speed of the target measuring point at the position of the target user according to a preset human body thermal comfort value and the human body comfort related parameters;
controlling the air conditioner to operate according to the temperature of the measuring point, the temperature of the target measuring point and the temperature of the return air inlet; and
after the preset time, when the action space of the air conditioner does not meet the comfort requirement, controlling the air conditioner to operate according to the temperature of the target measuring point and the wind speed of the target measuring point;
the preset human body thermal comfort value is a set value of an estimated average thermal sensation index of the target user in a comfortable state, the target measuring point temperature is a target value of the temperature of the position where the target user is located, and the target measuring point wind speed is a target value of the wind speed of the position where the target user is located.
2. The air conditioner controlling method of claim 1, wherein the step of obtaining the human comfort related parameter comprises:
acquiring the distance between the target user and the air conditioner, and acquiring the current air outlet temperature and air outlet speed of the air conditioner;
determining the temperature of a measuring point in the human body comfort related parameters according to the air outlet temperature and the distance; and determining the wind speed of a measuring point in the human body comfort related parameters according to the wind speed of the outlet air and the distance.
3. The air conditioner control method according to claim 2, wherein the step of controlling the operation of the air conditioner based on the target station temperature and the target station wind speed comprises:
determining the target air-out temperature of the air conditioner according to the target measuring point temperature and the distance, and determining the target air-out wind speed of the air conditioner according to the target measuring point wind speed and the distance;
determining a target frequency of a compressor of the air conditioner according to the target outlet air temperature; determining a target rotating speed of a fan of the air conditioner according to the target outlet air speed;
and controlling the compressor to operate according to the target frequency, and controlling the fan to operate according to the target rotating speed.
4. The method according to claim 3, wherein the fan includes two axial flow wind wheels, the two axial flow wind wheels are disposed opposite to each other, and the step of determining the target rotation speed of the fan of the air conditioner according to the target outlet wind speed includes:
and determining the target rotating speed of each axial flow wind wheel according to the target outlet wind speed.
5. The air conditioner control method as claimed in claim 1, wherein said step of controlling the operation of said air conditioner based on said temperature at said measuring point, said temperature at said target measuring point and said temperature at said return air inlet comprises:
comparing the temperature of the measuring point with the temperature of the target measuring point to obtain a first size relation; comparing the temperature of the target measuring point with the temperature of the return air inlet to obtain a second size relation;
and adjusting the running frequency of a compressor and/or the running speed of a fan of the air conditioner according to the first size relation and the second size relation.
6. The method as claimed in claim 1, wherein after the step of controlling the operation of the air conditioner based on the temperature of the measuring point, the temperature of the target measuring point and the temperature of the return air inlet, the method further comprises:
acquiring current human body comfort related parameters in an air conditioner acting space after preset time;
determining a predicted average heat sensation index according to the current human body comfort related parameters;
and when the predicted average thermal sensation index does not meet the preset thermal comfort condition, judging that the air conditioner action space does not meet the comfort requirement.
7. The air conditioner control method as claimed in any one of claims 1 to 6, wherein the step of determining the temperature of the target measuring point and the wind speed of the target measuring point at the position of the target user according to the preset human thermal comfort value and the human comfort related parameter comprises:
calculating the temperature of the target measuring point according to a preset human body thermal comfort sensing value, the measuring point wind speed and a preset comfort formula; and calculating the wind speed of the target measuring point according to the preset human body thermal comfort value, the measuring point temperature and a preset comfort formula.
8. An air conditioner control device characterized by comprising: a memory, a processor and an air conditioner control program stored on the memory and executable on the processor, the air conditioner control program when executed by the processor implementing the steps of the air conditioner control method according to any one of claims 1 to 7.
9. An air conditioner characterized by comprising the air conditioner control device according to claim 8.
10. A readable storage medium having stored thereon an air conditioner control program, which when executed by a processor, implements the steps of the air conditioner control method according to any one of claims 1 to 7.
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