CN116928852A

CN116928852A - Air conditioner control method, device, air conditioner, storage medium and program product

Info

Publication number: CN116928852A
Application number: CN202310908739.1A
Authority: CN
Inventors: 徐耿彬; 梁博; 陈志伟; 薛加新; 田雅颂; 梁之琦
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2023-07-21
Filing date: 2023-07-21
Publication date: 2023-10-24

Abstract

The application relates to an air conditioner control method, an air conditioner control device, an air conditioner, a computer readable storage medium and a computer program product. The method comprises the following steps: when a drying mode of the air conditioner is started, acquiring the temperature of a real-time inner pipe of the air conditioner; obtaining a frequency correction value of a compressor of the air conditioner according to the current temperature difference value of the real-time inner tube temperature and the target inner tube temperature; and adjusting the operation frequency of the compressor according to the frequency correction value, and controlling the air conditioner to exit the drying mode when the air conditioner is determined to meet the drying stop condition. By adopting the method, the accuracy of drying control of the air conditioner can be improved.

Description

Air conditioner control method, device, air conditioner, storage medium and program product

Technical Field

The present application relates to the technical field of household appliances, and in particular, to an air conditioner control method, an air conditioner, a computer readable storage medium, and a computer program product.

Background

After refrigeration operation, a large amount of condensed water is easy to remain on the evaporator, if the evaporator is not dried in time, the evaporator and even other parts in the machine are easy to generate mildew, and the health of users is seriously affected.

At present, in the common drying mode in the current market, the evaporator is heated and then the condensed water on the evaporator is dried by combining an inner fan. However, after the drying mode of the air conditioner is turned on, the drying process cannot be accurately controlled, so that the control accuracy is low when the air conditioner is dried.

Disclosure of Invention

In view of the foregoing, it is desirable to provide an air conditioner control method, an apparatus, an air conditioner, a computer-readable storage medium, and a computer program product that are capable of improving the accuracy of controlling the drying of an air conditioner.

In a first aspect, the present application provides an air conditioner control method. The method comprises the following steps:

when a drying mode of the air conditioner is started, acquiring the temperature of a real-time inner pipe of the air conditioner;

obtaining a frequency correction value of a compressor of the air conditioner according to the current temperature difference value of the real-time inner tube temperature and the target inner tube temperature;

and adjusting the operation frequency of the compressor according to the frequency correction value, and controlling the air conditioner to exit the drying mode when the air conditioner is determined to meet the drying stop condition.

In one embodiment, the obtaining the frequency correction value of the compressor of the air conditioner according to the current temperature difference value of the real-time inner pipe temperature and the target inner pipe temperature includes:

Obtaining a preset target temperature difference value;

and calculating the frequency correction value by using a PID algorithm by taking the preset target temperature difference value as a control target and the current temperature difference value as an input.

In one embodiment, the calculating the frequency correction value using a PID algorithm is performed by the following formula:

△F＝Kp(△T(t)-△T(t-1))+Ki△T(t)+Kd(△T(t)-2△T(t-1)+△T(t-2))；

wherein Δf represents the frequency correction value, kp represents a proportional coefficient, ki represents an integral coefficient, kd represents a differential coefficient; delta T (T) represents a temperature difference value at the current moment, delta T (T-1) represents a current temperature difference value at the previous moment, delta T (T-2) represents a temperature difference value at the previous two moments, and the temperature difference value is a difference value between the real-time inner tube temperature at the corresponding moment and the target inner tube temperature; the preset target temperature difference value comprises a temperature difference value of the previous moment and a temperature difference value of the previous two moments.

In one embodiment, the adjusting the operating frequency of the compressor according to the frequency correction value, when determining that the air conditioner meets a drying stop condition, controlling the air conditioner to exit the drying mode includes:

obtaining a reference inner tube temperature of the air conditioner;

and when the difference value between the reference inner tube temperature and the target inner tube temperature is within a preset range and the duration time is longer than or equal to the target drying duration time, determining that the air conditioner meets a drying stop condition, and controlling the air conditioner to exit the drying mode.

In one embodiment, the method for obtaining the target drying time length includes:

acquiring target refrigeration time of the air conditioner;

and obtaining the target drying duration according to the target refrigerating duration range in which the target refrigerating duration is located.

In one embodiment, the obtaining the target drying duration according to the target refrigeration duration range in which the target refrigeration duration is located includes:

obtaining a target average temperature of a difference between the historical indoor ambient temperature and the historical inner tube temperature;

obtaining a target drying coefficient according to the target average temperature, the target refrigerating duration range and a preset coefficient table; the preset coefficient table comprises a plurality of average temperature ranges, a plurality of refrigeration duration ranges and a plurality of drying coefficients, and each average temperature range has a corresponding refrigeration duration range and drying coefficient;

and obtaining the target drying time according to the target drying coefficient.

In a second aspect, the present application provides an air conditioner control device, the device comprising:

the temperature acquisition module is used for acquiring the real-time inner tube temperature of the air conditioner when the drying mode of the air conditioner is started;

the processing module is used for obtaining a frequency correction value of the compressor of the air conditioner according to the current temperature difference value of the real-time inner tube temperature and the target inner tube temperature;

And the control module is used for adjusting the running frequency of the compressor according to the frequency correction value, and controlling the air conditioner to exit the drying mode when the air conditioner is determined to meet the drying stop condition.

In a third aspect, the present application provides an air conditioner comprising:

a control main board;

setting an internal machine data acquisition module and a target control module on the control main board;

the inner machine data acquisition module is used for acquiring the real-time inner tube temperature of the air conditioner when the drying mode of the air conditioner is started; the target control module is used for obtaining a frequency correction value of the compressor of the air conditioner according to the current temperature difference value of the real-time inner pipe temperature and the target inner pipe temperature; and adjusting the operation frequency of the compressor according to the frequency correction value, and controlling the air conditioner to exit the drying mode when the air conditioner is determined to meet the drying stop condition.

In one embodiment, the control main board comprises an internal machine main board and an external machine main board, and the internal machine data acquisition module is arranged on the internal machine main board; the target control module includes: an inner machine drying mode control module arranged on the inner machine main board and an outer machine drying mode control module arranged on the outer machine main board;

The inner machine drying mode control module is used for obtaining a frequency correction value of the compressor of the air conditioner according to the current temperature difference value of the real-time inner pipe temperature and the target inner pipe temperature;

the external machine drying mode control module is used for adjusting the operating frequency of the compressor according to the frequency correction value;

and the internal machine drying mode control module is further used for controlling the air conditioner to exit the drying mode when the air conditioner is determined to meet the drying stopping condition.

In one embodiment, the air conditioner further comprises: the air conditioner comprises an air deflector, a fan, an exhaust pipeline assembly and a fresh air pipeline;

the inner machine drying mode control module is also used for controlling the air deflector to be closed and controlling the fan to be started when the drying mode of the air conditioner is started;

the exhaust pipeline component is used for absorbing water vapor in an indoor unit of the air conditioner when a drying mode of the air conditioner is started; the fresh air pipeline is used for discharging the water vapor outdoors.

In one embodiment, the exhaust conduit assembly includes a rotary valve and an exhaust conduit;

and the inner machine drying mode control module is also used for controlling the rotary valve to rotate to a preset position when the drying mode of the air conditioner is started so as to absorb water vapor in the inner machine through the exhaust pipeline.

In one embodiment, the air conditioner further comprises a fresh air connector connected with the fresh air pipeline, and the water vapor enters the fresh air pipeline through the fresh air connector.

In one embodiment, the air conditioner further comprises: the novel air conditioner comprises a novel air baffle and a novel air inlet cavity, wherein the novel air baffle seals the novel air inlet cavity when a drying mode of the air conditioner is opened.

In a fourth aspect, the present application also provides a computer-readable storage medium. The computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:

In a fifth aspect, the present application also provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the steps of:

According to the air conditioner control method, the air conditioner, the computer readable storage medium and the computer program product, when the drying mode of the air conditioner is started, the frequency correction value of the compressor of the air conditioner can be obtained according to the current temperature difference value of the real-time inner tube temperature and the target inner tube temperature by obtaining the real-time inner tube temperature of the air conditioner, so that the influence of the running frequency of the compressor on the drying process is considered when the drying mode of the air conditioner is started. And when the air conditioner is determined to meet the drying stop condition, the drying process of the air conditioner can be accurately controlled by controlling the air conditioner to exit the drying mode, and the accuracy of drying control of the air conditioner is improved.

Drawings

FIG. 1 is a block diagram of an air conditioner in one embodiment;

FIG. 2 is a block diagram of the air conditioner in another embodiment;

FIG. 3 is a block diagram of an air conditioner in another embodiment;

FIG. 4 is a schematic structural view of an air-vented exhaust duct assembly in accordance with an embodiment;

FIG. 5 is a schematic view of another embodiment hollow exhaust duct assembly;

FIG. 6 is a schematic diagram of the rotational position of a hollow rotary valve in one embodiment;

FIG. 7 is a schematic view of the hollow structure of another embodiment;

FIG. 8 is a flow chart of a method of controlling hollow fiber in one embodiment;

FIG. 9 is a flow chart of obtaining a frequency correction value of a compressor of an air conditioner according to a current temperature difference between a real-time inner tube temperature and a target inner tube temperature in one embodiment;

FIG. 10 is a flow chart of controlling an air conditioner to exit a drying mode when it is determined that the air conditioner satisfies a drying stop condition by adjusting an operation frequency of a compressor according to a frequency correction value in one embodiment;

FIG. 11 is a flow chart of a method for obtaining a target drying time in one embodiment;

FIG. 12 is a flow chart of a target drying time according to a target cooling time range of a target cooling time in an embodiment;

FIG. 13 is a flow chart of a method for controlling hollow fibers according to another embodiment;

FIG. 14 is a block diagram showing the structure of a hollow-vessel control device according to one embodiment.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

The air conditioner control method provided by the embodiment of the application can be applied to an application environment shown in fig. 1. The air conditioner 100 includes a control main board 102, an internal machine data acquisition module 104 and a target control module 106, which are disposed on the control main board 102. The internal machine data acquisition module 104 is configured to obtain a real-time inner tube temperature of the air conditioner when a drying mode of the air conditioner is started, and specifically, the internal machine data acquisition module may obtain the real-time inner tube temperature through a temperature sensing bulb when the drying mode of the air conditioner is started. The target control module 106 is configured to obtain a frequency correction value of a compressor of the air conditioner according to a current temperature difference value between the real-time inner pipe temperature and the target inner pipe temperature; and adjusting the operation frequency of the compressor according to the frequency correction value, and controlling the air conditioner to exit the drying mode when the air conditioner is determined to meet the drying stop condition.

In one embodiment, as shown in fig. 2, the control motherboard 102 includes an internal motherboard 202 and an external motherboard 204, and the internal data acquisition module 104 is disposed on the internal motherboard 202. The target control module 106 includes an internal machine drying mode control module 2021 provided on the internal machine main board 202, and an external machine drying mode control module 2041 provided on the external machine main board 204. The indoor unit data acquisition module 102 is configured to acquire a user instruction to start a drying mode, and the indoor unit drying mode control module starts a drying mode of the air conditioner according to the instruction. The indoor unit drying mode control module 2021 is configured to obtain a frequency correction value of a compressor of the air conditioner according to a current temperature difference between the real-time inner pipe temperature and the target inner pipe temperature. The external machine drying mode control module 2041 is used to adjust the operating frequency of the compressor according to the frequency correction value. The internal drying mode control module 2021 is further configured to control the air conditioner to exit the drying mode when it is determined that the air conditioner satisfies a drying stop condition.

The internal motherboard 202 and the external motherboard 204 may communicate in a variety of possible ways, as long as the internal motherboard 202 is able to transmit the frequency correction value to the external motherboard 204.

On the basis of the illustration of fig. 2, in one embodiment, as illustrated in fig. 3, a block diagram of an air conditioner is provided. The air conditioner 100 further includes an internal unit communication module 302 disposed on the internal unit motherboard 202, and an external unit communication module 304 and an external unit data acquisition module 306 disposed on the external unit motherboard 204.

The internal machine data acquisition module 104 is further configured to acquire an indoor environment temperature acquired by the temperature sensing bulb. The internal machine data acquisition module 104 communicates with the internal machine drying mode control module 2021 through the internal machine communication module 302, and specifically, the internal machine data acquisition module 104 transmits the internal pipe temperature to the internal machine drying mode control module 2021 through the internal machine communication module 302. The indoor unit drying mode control module 2021 is further configured to control a rotation speed of the air guiding structure and the inner fan when a drying mode of the air conditioner is turned on. The internal communication module 302 is further configured to communicate with the external communication module 304, and share parameters, such as sharing the inner tube temperature and the indoor environment temperature collected by the temperature sensing bulb, and the internal communication module 302 is further configured to transmit the frequency correction value to the external communication module 304.

The external machine data acquisition module 306 is used for acquiring outdoor environment temperature through a temperature sensing bulb. The external communication module 304 is responsible for communicating with the internal communication module 302, and sharing parameters, such as sharing outdoor environment temperature. The external machine drying mode control module 2041 is further configured to control at least one of the compressor, the external fan, and the expansion valve according to a desired internal pipe temperature when the drying mode of the air conditioner is on. For example, the external machine drying mode control module 2041 is configured to adjust the operating frequency of the compressor based on the frequency correction value.

Although the air conditioner on the target market can realize the drying function by heating the evaporator and drying the condensed water on the evaporator by combining an inner fan. However, in the blow-drying process, as the air deflector is opened, the fan maintains a higher rotating speed, so that the fan has larger noise and blows hot air, thereby not only affecting the indoor temperature environment to reduce the comfort experience of users, but also easily giving users the illusion of 'not being shut down in time' to cause complaints and cause user complaints. If the air deflector is rotated to the anti-direct blowing position or is directly closed, the air deflector can be caused to be basically free of air quantity, evaporated water vapor still remains in the shell of the inner machine, and because the pressure in the inner machine cannot be released in time, unstable system operation parameters are easily caused, the operation of the compressor is unstable, and finally the protection is stopped.

Based on this, when the drying mode of the air conditioner is on, when the indoor unit drying mode control module 2021 controls the air guiding structure, the air guiding structure may be implemented by various possible circuit structures, so long as it is capable of exhausting the high-humidity air generated in the indoor unit casing during drying out of the room when the air guiding plate is closed for drying, so as to ensure the drying effect and improve the comfort of the user.

In one embodiment, the air conditioner 100 may also include an air deflector, a fan, an exhaust duct assembly, and a fresh air duct. The air guide structure comprises an exhaust pipeline component and a fresh air pipeline. The indoor unit drying mode control module 2021 is further configured to control the air deflector to be closed and the fan to be turned on when the drying mode of the air conditioner is turned on. The exhaust pipeline component is used for absorbing water vapor in an indoor unit of the air conditioner when a drying mode of the air conditioner is started; the fresh air pipeline is used for discharging water vapor outdoors. Therefore, when the air conditioner is dried by adopting the mode that the air deflector is closed, the evaporated water vapor can be prevented from remaining in the inner machine shell through the exhaust pipeline component and the fresh air pipeline, and the condition that the air conditioner is unstable in operation and causes protection shutdown is easily caused because the inner machine pressure cannot be released in time, so that the stability of the air conditioner in the operation drying mode is improved.

The exhaust duct assembly may be implemented by various possible structures as long as it can absorb water vapor evaporated in the indoor unit of the air conditioner when the drying mode of the air conditioner is turned on.

In one embodiment, the exhaust duct assembly includes an exhaust duct and a rotary valve, and the air guiding structure includes a rotary valve. As shown in fig. 4, fig. 4 is an overall block diagram of an exhaust duct assembly 400. On the basis of fig. 4, as shown in fig. 5, the exhaust duct assembly 400 includes upper and lower ducts 5021 and 5022 of the exhaust duct 502, and a rotary valve 504. When the drying mode of the air conditioner is on, the internal machine drying mode control module 2012 controls the rotary valve 504 to rotate to the second position 602 in fig. 6, wherein the rotation angle of the rotary valve is a preset angle, and the preset angle is any one of 20 ° to 160 °. When the drying mode of the air conditioner is not on, the internal drying mode control module 2021 controls the rotary valve to rotate to the first position 604 in fig. 6, and at this time, the rotary valve 504 is parallel to the inlet of the exhaust duct 502, so that the inlet of the exhaust duct 502 is completely closed, and the air flow in the air conditioner is prevented from being exhausted from the exhaust duct 502. Therefore, when the air deflector of the air conditioner is controlled to be closed and the fan is controlled to be opened to realize the drying function, the water vapor in the indoor unit can be absorbed through the exhaust pipeline, the absorbed water vapor is discharged outdoors through the fresh air pipeline, the situation that the evaporated water vapor still remains in the inner machine shell, and the air conditioner is easily caused to be unstable in operation and cause protection shutdown due to incapability of timely release of the inner machine pressure can be avoided, and the stability of the air conditioner in the operation drying mode is improved.

In one embodiment, the air conditioner further comprises a fresh air connector connected with the fresh air pipeline, and the water vapor absorbed by the exhaust pipeline assembly enters the fresh air pipeline through the fresh air connector. Wherein, the wind-guiding structure includes new trend joint.

In one embodiment, the air conditioner further comprises a fresh air baffle and a fresh air inlet cavity, and the air guiding structure comprises the fresh air baffle and the fresh air inlet cavity. Specifically, the fresh air baffle is used for closing the fresh air inlet cavity when the drying mode of the air conditioner is opened. Therefore, when the fresh air baffle seals the fresh air inlet cavity, a channel is formed between the inside of the air conditioner and the outside of the air conditioner, and the air deflector of the air conditioner is closed and the fan is opened, so that water vapor in the air conditioner can be discharged to the outside of the air conditioner through the exhaust pipeline.

In combination with the above, as shown in fig. 7, a schematic structural diagram of an air conditioner is provided. The air conditioner 100 includes an exhaust duct 502, a rotary valve 504, a fresh air connector 702, a fresh air baffle 704, a fresh air intake chamber 706, and a bottom casing 708, where the fresh air duct is not shown. When the drying mode of the air conditioner is started, the rotary valve 504 rotates to the second position 602, the fresh air baffle 704 rotates to seal the upper half part of the fresh air inlet cavity 706, so that the volume of the fresh air inlet cavity 706 can be reduced, a channel is formed between the inside of the air conditioner and the outside of the air conditioner, the air deflector of the air conditioner is closed, the fan is started, high-humidity air generated during the drying of the evaporator is prevented from returning to the room through the fresh air inlet cavity 706, the fresh air pipeline can be reversely used for drying and dehumidifying, the high-humidity air generated in the air conditioner enters the fresh air pipeline through the exhaust pipeline 502, and the high-humidity air quickly enters the fresh air pipeline through the fresh air connector 702 and is discharged out of the room. Therefore, when the air deflector is closed to realize the drying function, the evaporated water vapor still remains in the inner machine shell, the condition of protection shutdown caused by unstable operation of the air conditioner is easily caused because the pressure in the inner machine can not be released in time, the operation reliability of the air conditioner is improved, and the use experience of a user on the air conditioner is improved.

On the basis of the above, as shown in fig. 8, there is provided an air conditioner control method, which is applied to the target control module 104 in fig. 1, for example, and may include the following steps:

s802, when a drying mode of the air conditioner is started, acquiring the real-time inner tube temperature of the air conditioner.

Specifically, referring to fig. 3, after the air conditioner operates in the cooling mode, when the internal unit data acquisition module 104 acquires a drying mode start instruction of a user, the real-time internal pipe temperature may be acquired by the temperature sensing bulb, in other words, the real-time internal pipe temperature is the temperature on the heat exchanger of the air conditioner acquired by the temperature sensing bulb at the current moment.

The indoor unit data acquisition module 104 acquires a drying mode opening instruction of a user, the indoor unit drying module 2021 controls the rotary valve 504 to rotate to a second position shown as 602 in fig. 6, the fresh air baffle 704 can seal the fresh air inlet cavity 706, the volume of the fresh air inlet cavity 706 is reduced, at the moment, the indoor unit cavity is communicated with the outside and is not communicated with the inside, and a channel is formed between the inside of the air conditioner and the outside, so that when the indoor unit drying module controls the air deflector to be closed and the motor to be opened to realize a drying function, water vapor in the indoor air can be discharged to the outside.

S804, obtaining the frequency correction value of the compressor of the air conditioner according to the current temperature difference value of the real-time inner tube temperature and the target inner tube temperature.

In this embodiment, when the drying mode of the air conditioner is turned on, the indoor ambient temperature is acquired, and the target inner tube temperature is acquired according to the indoor ambient temperature. Specifically, the target inner tube temperature is the sum of the indoor ambient temperature and the inner tube temperature set point, which may be any value within the inner tube temperature range. In this embodiment, the upper limit value of the inner tube temperature range may be 35 ℃ and the lower limit value may be 25 ℃. Wherein the maximum value of the target inner tube temperature does not exceed 60 ℃.

In this embodiment, the real-time inner tube temperature is the inner tube temperature collected at the current time, and the target inner tube temperature is obtained according to the indoor environment temperature collected at the current time, and then the difference between the two is the current temperature difference. The temperature values of the real-time inner tube temperature and the target inner tube temperature at different moments are different, and it can be understood that if the indoor environment temperatures acquired at adjacent moments are the same, and if different inner tube temperature set values are adopted, the target inner tube temperatures at adjacent moments are also different.

In this embodiment, the target control module may be implemented in various possible manners, and according to the current temperature difference between the real-time inner tube temperature and the target inner tube temperature, a frequency correction value of the compressor of the air conditioner is obtained, so long as the real-time inner tube temperature of the air conditioner approaches the target inner tube temperature when the operating frequency of the compressor is adjusted based on the frequency correction value.

In one embodiment, the frequency correction value of the compressor of the air conditioner may be obtained based on a preset algorithm from the current temperature difference value of the real-time inner tube temperature and the target inner tube temperature. The preset control method may include a PID algorithm or other types of control algorithms.

And S806, adjusting the operation frequency of the compressor according to the frequency correction value, and controlling the air conditioner to exit the drying mode when the air conditioner is determined to meet the drying stop condition.

In this embodiment, referring to fig. 3, the external machine drying mode control module 2041 may obtain the target operating frequency according to the frequency correction value and the operating frequency of the compressor at the current time, so that the external machine drying mode control module controls the compressor to operate at the target operating frequency.

In the present embodiment, the drying stop condition is used to indicate a stop condition of the drying mode of the air conditioner, in other words, the drying stop condition refers to a condition that the air conditioner exits the drying mode. In one embodiment, the drying stop condition may include at least one of: the indoor environment temperature is greater than or equal to an environment threshold value, and the difference between the indoor inner tube temperature and the target inner tube temperature is less than or equal to the threshold value.

In summary, based on the method shown in fig. 8, when the drying mode of the air conditioner is started, by acquiring the real-time inner tube temperature of the air conditioner, the frequency correction value of the compressor of the air conditioner can be obtained according to the current temperature difference value between the real-time inner tube temperature and the target inner tube temperature, so that the influence of the operation frequency of the compressor on the drying process is considered when the drying mode of the air conditioner is started. And when the air conditioner is determined to meet the drying stop condition, the drying process of the air conditioner can be accurately controlled by controlling the air conditioner to exit the drying mode, and the accuracy of drying control of the air conditioner is improved. In addition, the method provided by the application can accurately control the drying process of the air conditioner through the temperature of the inner pipe on the low-cost air conditioner model without a humidity sensor, and improves the accuracy of the drying control of the air conditioner.

In one embodiment, as shown in fig. 9, a flowchart of obtaining a frequency correction value of a compressor of an air conditioner according to a current temperature difference between a real-time inner pipe temperature and a target inner pipe temperature is provided, and the method is applied to the target control module 104 in fig. 1, for example, and may include the following steps:

s902, obtaining a preset target temperature difference value.

In this embodiment, the preset target temperature difference value is a temperature difference value at a historical time, and specifically, the historical time refers to a temperature difference value at least one time before the current time, where the temperature difference value is a difference value between a real-time inner tube temperature acquired at a corresponding time and the target inner tube temperature.

S904, taking a preset target temperature difference value as a control target and a current temperature difference value as an input, and calculating a frequency correction value by adopting a PID algorithm.

The PID algorithm is a PID controller (also called a PID regulator) that controls according to a proportion (P), an integral (I) and a derivative (D) of a deviation in process control, and the PID controller is the most widely used automatic controller. In this embodiment, when the preset target temperature difference value is used as a control target and the current temperature difference value is used as an input, and the frequency correction value is calculated by adopting the PID algorithm, the influence of the operation frequency of the compressor at the adjacent moment on the inner pipe temperature can be reflected by correlating the temperature difference values at the adjacent moment, and the control accuracy rate of the drying process of the air conditioner can be improved because the inner pipe temperature is directly correlated with the drying process of the drying mode of the air conditioner.

In summary, based on the method shown in fig. 9, by taking the preset target temperature difference value as a control target and the current temperature difference value as an input, and calculating the frequency correction value by adopting the PID algorithm, the running frequency of the compressor can be continuously adjusted to enable the current temperature difference value to approach to the preset target temperature difference value, and stable adjustment is performed near the preset target temperature difference value, so that the accurate control of the current temperature difference value is realized, the real-time inner tube temperature can approach to the target inner tube temperature, and the accuracy of drying control of the air conditioner is improved.

Calculating the frequency correction value using the PID algorithm may be accomplished in various possible ways as long as the real-time inner pipe temperature of the air conditioner is close to the target inner pipe temperature by the compressor operating frequency after adjusting the operating frequency of the compressor.

In one embodiment, calculating the frequency correction value using a PID algorithm is performed by the following formula: Δf=kp (Δt (T) - [ Δt (T-1)) +ki Δt (T) +kd (Δt (T) -2 Δt (T-1) +Δt (T-2)). Wherein Δf represents a frequency correction value, kp represents a proportional coefficient, ki represents an integral coefficient, kd represents a differential coefficient; delta T (T) represents the current temperature difference value at the current moment, delta T (T-1) represents the temperature difference value at the moment before the current moment, delta T (T-2) represents the temperature difference value at the moment before the current moment, and the temperature difference value is the difference value between the real-time inner tube temperature at the corresponding moment and the target inner tube temperature; the preset target temperature difference value comprises a temperature difference value at the moment before the current moment and a temperature difference value at the two moments before the current moment.

Therefore, the frequency correction value is calculated through the formula, the operation frequency of the compressor is adjusted according to the frequency correction value, when the air conditioner is determined to meet the drying stop condition, the temperature of the inner pipe during drying is controlled through the PID algorithm when the air conditioner is controlled to exit the drying mode, so that efficient and reliable dehumidification is realized, the practicability of the drying function of the air conditioner is improved, and the use experience of a user is improved.

The current temperature difference value can be enabled to approach to the preset target temperature difference value by continuously adjusting the current temperature difference value, and stable adjustment is carried out near the preset target temperature difference value, so that accurate control of the current temperature difference value is realized, the temperature of the inner tube in real time can approach to the target inner tube temperature, and the accuracy of drying control of the air conditioner is improved.

The target control module can be realized in various possible modes, the operation parameters of the air conditioner are adjusted according to the frequency correction value, and when the air conditioner is determined to meet the drying stop condition, the air conditioner is controlled to exit the drying mode, so long as the drying process of the air conditioner can be accurately controlled according to the frequency correction value.

In one embodiment, as shown in fig. 10, there is provided a flowchart for controlling the air conditioner to exit from the drying mode when it is determined that the air conditioner satisfies the drying stop condition by adjusting the operation frequency of the compressor according to the frequency correction value, which may include the steps of:

S1002, obtaining a reference inner tube temperature of the air conditioner.

In this embodiment, the reference inner tube temperature is used to represent the temperature collected on the heat exchanger of the air conditioner indoor unit after the operation frequency of the compressor is adjusted according to the frequency correction value. Specifically, the temperature of the heat exchanger of the air conditioner indoor unit can be acquired through a temperature sensing bulb on the heat exchanger of the air conditioner indoor unit, and the reference inner tube temperature is obtained.

S1004, when the difference value between the reference inner tube temperature and the target inner tube temperature is within a preset range and the duration time is longer than or equal to the target drying duration time, determining that the air conditioner meets the drying stop condition, and controlling the air conditioner to exit the drying mode.

In the present embodiment, when the difference between the reference inner tube temperature and the target inner tube temperature is any one of the lower limit value and the upper limit value of the preset range, it is determined that the difference between the reference inner tube temperature and the target inner tube temperature is within the preset range. In this embodiment, the lower limit value of the preset range may be 0.5 ℃ and the upper limit value may be 2 ℃.

In the present embodiment, the duration is used to represent a duration that is maintained when the difference between the reference inner tube temperature and the target inner tube temperature is within a preset range. The target drying time is determined according to the refrigerating time of the air conditioner, and the refrigerating time of the air conditioner refers to the time of the air conditioner in a refrigerating mode before the drying mode is started.

In summary, based on the method shown in fig. 10, by obtaining the reference inner tube temperature of the air conditioner, and determining that the air conditioner meets the drying stop condition when the difference between the reference inner tube temperature and the target inner tube temperature is within the preset range and the duration is longer than or equal to the target drying duration, the air conditioner is controlled to exit the drying mode, so that the execution process of the drying mode is accurately controlled under the condition of considering the inner tube temperature of the air conditioner, and the accuracy of drying control of the air conditioner is improved.

The target control module may acquire the target drying time period in various possible manners, so long as the drying process of the air conditioner can be precisely controlled according to the target drying time period.

In one embodiment, as shown in fig. 11, a flowchart of a method for obtaining the target drying time period is provided, which may include the following steps:

s1102, acquiring target refrigeration time length of the air conditioner.

In this embodiment, the target cooling duration of the air conditioner is an average value of cooling durations in a plurality of periods, and the periods refer to periods when the air conditioner operates in the cooling mode before the drying mode is started. Specifically, the refrigerating duration corresponding to the refrigerating modes of the air conditioner running in a plurality of periods can be recorded according to the timer, and the target refrigerating duration is obtained according to the refrigerating duration corresponding to the plurality of periods.

S1104, obtaining target drying duration according to the target refrigerating duration range of the target refrigerating duration.

In this embodiment, a plurality of refrigeration duration ranges may be preset, for example, the plurality of refrigeration duration ranges may include: a first refrigeration duration range, a second refrigeration duration range, a third refrigeration duration range, a fourth refrigeration duration range, a fifth refrigeration duration range, and a sixth refrigeration duration range.

The upper limit value of the first refrigerating duration range is the same as the lower limit value of the second refrigerating duration range, but the first refrigerating duration range does not comprise the upper limit value of the first refrigerating duration range; the upper limit of the second refrigeration duration range is the same as the lower limit of the third refrigeration duration range, but the second refrigeration duration range does not include the upper limit of the second refrigeration duration range, and so on. In the sixth cooling duration range, only the lower limit value and not the upper limit value of the sixth cooling duration range are set.

Specifically, in this embodiment, the lower limit value of the first refrigeration duration range may be 0, and the upper limit value may be 20, and then the first refrigeration duration range is expressed as: [0,20). The lower limit value of the second refrigeration duration range may be 20, and the upper limit value may be 40, and the second refrigeration duration range is expressed as: [20,40). The lower limit value of the third refrigeration duration range may be 40, and the upper limit value may be 60, and the third refrigeration duration range is expressed as: [40,60). The lower limit value of the fourth refrigeration duration range may be 60, and the upper limit value may be 90, and the fourth refrigeration duration range is expressed as: [60,90). The lower limit value of the fifth refrigeration duration range may be 90, and the upper limit value may be 120, and the fifth refrigeration duration range is expressed as: [90,120). The lower limit value of the sixth cooling duration range may be 120, and the sixth cooling duration range is expressed as: [120, +.). Wherein, the unit of refrigerating time length is minutes (min).

Specifically, the target refrigeration duration may be compared with each refrigeration duration range, thereby obtaining a target refrigeration duration range in which the target refrigeration duration is located. For example, if the target cooling duration is 75 minutes and 75 minutes is within the fourth cooling duration range, the target cooling duration range is determined to be the fourth cooling duration range.

In one embodiment, obtaining the target drying duration according to the target refrigeration duration range in which the target refrigeration duration is located includes: and obtaining a mapping relation between the refrigerating time length range and the drying time length, and obtaining a target drying time length matched with the target refrigerating time length range according to the mapping relation.

In summary, based on the method shown in fig. 11, the target drying duration may be obtained, and when the difference between the reference inner tube temperature and the target inner tube temperature of the air conditioner is within the preset range and the duration is greater than or equal to the target drying duration, and it is determined that the air conditioner satisfies the drying stop condition, the air conditioner may be controlled to exit the drying mode, so that the execution process of the drying mode is accurately controlled in consideration of the inner tube temperature of the air conditioner, and the accuracy of drying control of the air conditioner is improved.

The target control module can acquire the target refrigeration duration range according to the target refrigeration duration in various possible modes, and acquire the target drying duration, so long as the drying process of the air conditioner can be accurately controlled according to the target drying duration.

In one embodiment, as shown in fig. 12, a flowchart of obtaining a target drying duration according to a target refrigeration duration range in which the target refrigeration duration is located is provided, and the flowchart may include the following steps:

s1202, obtaining a target average temperature of a difference between a historical indoor environment temperature and a historical inner pipe temperature.

In this embodiment, the target refrigerating duration of the air conditioner is the average value of refrigerating durations in a plurality of periods, the historical indoor environment temperature refers to the average value of environment temperatures in the plurality of periods, the historical indoor environment temperature refers to the average value of inner pipe temperatures in the plurality of periods, the difference between the historical indoor environment temperature and the historical inner pipe temperature can be obtained, and then the target average temperature can be obtained by averaging the difference.

S1204, obtaining a target drying coefficient according to the target average temperature, the target refrigerating duration range and a preset coefficient table; the preset coefficient table comprises a plurality of average temperature ranges, a plurality of refrigeration duration ranges and a plurality of drying coefficients, and each average temperature range is provided with a corresponding refrigeration duration range and drying coefficient.

Specifically, a target average temperature range matched with the target average temperature can be determined from a plurality of average temperature ranges according to a preset coefficient table, and then a target drying coefficient is determined according to the target average temperature range and the target refrigerating duration range.

In combination with the content of S1104, as shown in table 1, a preset coefficient table is provided, and the content of table 1 is as follows:

TABLE 1

Wherein, in Table 1, the preset coefficient table includes 6 refrigerating time ranges of [0,20 ], [20,40 ], [40,60 ], [60,90 ], [90, 120) and [120 ], infinity), the preset coefficient table also includes 5 average temperature ranges of [0,2 ], [2,3 ], [3,4 ], [4, 5) and [5, ], respectively. Each average temperature range has a corresponding refrigeration duration range and drying coefficient. For example, with reference to Table 1, the target average temperature is 2.4 ℃, the target average temperature range is [2,3 ], the target cooling duration range is [60, 90), and the target drying coefficient is 0.9.

S1206, a target drying time period is obtained according to the target drying coefficient.

Specifically, the target drying time period is the product of the target drying coefficient and a drying threshold, and the drying threshold is determined according to the type of the internal machine of the air conditioner, and in this embodiment, the drying threshold is any value from 10 minutes to 20 minutes.

In summary, based on the method shown in fig. 12, by obtaining the target average temperature of the difference between the historical indoor ambient temperature and the historical inner tube temperature, the target drying coefficient can be obtained according to the target average temperature, the target refrigeration duration range, and the preset coefficient table, and further the target drying duration can be obtained according to the target drying coefficient. Therefore, when the difference value between the reference inner pipe temperature and the target inner pipe temperature of the air conditioner is within the preset range and the duration time is longer than or equal to the target drying duration time, and the air conditioner is determined to meet the drying stop condition, the air conditioner can be controlled to exit the drying mode, so that the execution process of the drying mode is accurately controlled under the condition that the inner pipe temperature of the air conditioner is considered, and the accuracy of drying control of the air conditioner is improved.

In combination with the above, in one embodiment, as shown in fig. 13, there is provided an air conditioner control method, which may include the steps of:

s1302, when the drying mode of the air conditioner is started, acquiring the real-time inner tube temperature of the air conditioner.

S1304, obtaining a preset target temperature difference value.

S1306, taking the preset target temperature difference value as a control target and the current temperature difference value as an input, and calculating a frequency correction value by adopting a PID algorithm.

Specifically, the frequency correction value calculated by adopting the PID algorithm is calculated by the following formula:

△F＝Kp(△T(t)-△T(t-1))+Ki△T(t)+Kd(△T(t)-2△T(t-1)+△T(t-2))；

wherein Δf represents a frequency correction value, kp represents a proportional coefficient, ki represents an integral coefficient, kd represents a differential coefficient; delta T (T) represents the current temperature difference value at the current moment, delta T (T-1) represents the temperature difference value at the moment before the current moment, delta T (T-2) represents the temperature difference value at the moment before the current moment, and the temperature difference value is the difference value between the real-time inner tube temperature at the corresponding moment and the target inner tube temperature; the preset target temperature difference value comprises a temperature difference value at the previous moment and a temperature difference value at the previous two moments.

S1308, a target cooling time period of the air conditioner is acquired.

S1310, obtaining a target average temperature of a difference between the historical indoor environment temperature and the historical inner tube temperature.

S1312, obtaining a target drying coefficient according to the target average temperature, the target refrigerating duration range and a preset coefficient table; the preset coefficient table comprises a plurality of average temperature ranges, a plurality of refrigeration duration ranges and a plurality of drying coefficients, and each average temperature range is provided with a corresponding refrigeration duration range and drying coefficient.

S1314, obtaining a target drying time according to the target drying coefficient.

S1316, obtaining the reference inner pipe temperature of the air conditioner.

S1318, when the difference value between the reference inner tube temperature and the target inner tube temperature is within the preset range and the duration time is longer than or equal to the target drying duration time, determining that the air conditioner meets the drying stop condition, and controlling the air conditioner to exit the drying mode.

The specific content of S1302-S1318 may be described with reference to the foregoing content adaptation descriptions, which are not repeated here.

It should be understood that, although the steps in the flowcharts related to the above embodiments are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

Based on the same inventive concept, the embodiment of the application also provides an air conditioner control device for realizing the air conditioner control method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in one or more embodiments of the air conditioner control device provided below may refer to the limitation of the air conditioner control method hereinabove, and will not be repeated herein.

In one embodiment, as shown in fig. 14, there is provided an air conditioner control device including: a temperature acquisition module 1402, a processing module 1404, and a control module 1406, wherein: a temperature obtaining module 1402, configured to obtain a real-time inner tube temperature of the air conditioner when a drying mode of the air conditioner is turned on; a processing module 1404, configured to obtain a frequency correction value of a compressor of the air conditioner according to a current temperature difference value between the real-time inner pipe temperature and the target inner pipe temperature; the control module 1406 is configured to adjust an operating frequency of the compressor according to the frequency correction value, and when it is determined that the air conditioner satisfies the drying stop condition, control the air conditioner to exit the drying mode.

In one embodiment, processing module 1404 is further to: obtaining a preset target temperature difference value; and taking the preset target temperature difference value as a control target and the current temperature difference value as an input, and calculating a frequency correction value by adopting a PID algorithm.

In one embodiment, calculating the frequency correction value using a PID algorithm is performed by the following formula: Δf=kp (Δt (T) - [ Δt (T-1)) +ki Δt (T) +kd (Δt (T) -2 Δt (T-1) +Δt (T-2)); wherein Δf represents a frequency correction value, kp represents a proportional coefficient, ki represents an integral coefficient, kd represents a differential coefficient; delta T (T) represents a temperature difference value at the current moment, delta T (T-1) represents a current temperature difference value at the previous moment, delta T (T-2) represents a temperature difference value at the previous two moments, and the temperature difference value is a difference value between the real-time inner tube temperature at the corresponding moment and the target inner tube temperature; the preset target temperature difference value comprises a temperature difference value at the previous moment and a temperature difference value at the previous two moments.

In one embodiment, the control module 1406 is further to: obtaining a reference inner tube temperature of the air conditioner; and when the difference value between the reference inner tube temperature and the target inner tube temperature is within a preset range and the duration time is longer than or equal to the target drying duration time, determining that the air conditioner meets the drying stop condition, and controlling the air conditioner to exit the drying mode.

In one embodiment, the air conditioner control device further includes a duration acquisition module, where the duration acquisition module is configured to: acquiring target refrigerating time of an air conditioner; and obtaining a target drying time according to the target refrigerating time range in which the target refrigerating time is located.

In one embodiment, the duration acquisition module is further configured to: obtaining a target average temperature of a difference between the historical indoor ambient temperature and the historical inner tube temperature; obtaining a target drying coefficient according to the target average temperature, the target refrigerating duration range and a preset coefficient table; the preset coefficient table comprises a plurality of average temperature ranges, a plurality of refrigeration duration ranges and a plurality of drying coefficients, and each average temperature range is provided with a corresponding refrigeration duration range and drying coefficient; and obtaining the target drying time according to the target drying coefficient.

The respective modules in the above-described air conditioner control device may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in the processor in the air conditioner in a hardware form or independent of the processor in the air conditioner, and can also be stored in the memory in the air conditioner in a software form, so that the processor can call and execute the operations corresponding to the modules.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, carries out the steps of the method embodiments described above.

In an embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the method embodiments described above.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.

Claims

1. An air conditioner control method, characterized in that the method comprises:

2. The method of claim 1, wherein the obtaining the frequency correction value of the compressor of the air conditioner according to the current temperature difference value of the real-time inner tube temperature and the target inner tube temperature comprises:

obtaining a preset target temperature difference value;

3. The method of claim 2, wherein said calculating said frequency correction value using a PID algorithm is performed by the following formula:

△F＝Kp(△T(t)-△T(t-1))+Ki△T(t)+Kd(△T(t)-2△T(t-1)+△T(t-2))；

wherein Δf represents the frequency correction value, kp represents a proportional coefficient, ki represents an integral coefficient, kd represents a differential coefficient; delta T (T) represents the current temperature difference value at the current moment, delta T (T-1) represents the temperature difference value at the moment before the current moment, delta T (T-2) represents the temperature difference value at the moment before the current moment, and the temperature difference value is the difference value between the real-time inner tube temperature at the corresponding moment and the target inner tube temperature; the preset target temperature difference value comprises a temperature difference value of the previous moment and a temperature difference value of the previous two moments.

4. The method of claim 1, wherein the adjusting the operating frequency of the compressor according to the frequency correction value, when it is determined that the air conditioner satisfies a drying stop condition, controls the air conditioner to exit the drying mode, comprises:

Obtaining a reference inner tube temperature of the air conditioner;

5. The method of claim 4, wherein the obtaining the target drying time period includes:

acquiring target refrigeration time of the air conditioner;

6. The method of claim 5, wherein the obtaining the target drying duration according to the target refrigeration duration range in which the target refrigeration duration is located comprises:

7. An air conditioner control device, characterized in that the device comprises:

8. An air conditioner, the air conditioner comprising:

a control main board;

9. The air conditioner of claim 8, wherein the control main board comprises an internal machine main board and an external machine main board, and the internal machine data acquisition module is arranged on the internal machine main board; the target control module includes: an inner machine drying mode control module arranged on the inner machine main board and an outer machine drying mode control module arranged on the outer machine main board;

10. The air conditioner of claim 8, further comprising: the air conditioner comprises an air deflector, a fan, an exhaust pipeline assembly and a fresh air pipeline;

11. The air conditioner of claim 10, wherein the exhaust duct assembly includes a rotary valve and an exhaust duct;

12. The air conditioner of claim 10 or 11, further comprising a fresh air connection to the fresh air duct, wherein the moisture enters the fresh air duct through the fresh air connection.

13. The air conditioner of claim 9, further comprising: the novel air conditioner comprises a novel air baffle and a novel air inlet cavity, wherein the novel air baffle seals the novel air inlet cavity when a drying mode of the air conditioner is opened.

14. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.

15. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.