CN116928735A

CN116928735A - Air conditioning system and control method thereof

Info

Publication number: CN116928735A
Application number: CN202310738705.2A
Authority: CN
Inventors: 曹玉超; 张一�
Original assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Current assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2023-10-24

Abstract

The embodiment of the application provides an air conditioning system and a control method thereof, relates to the technical field of air conditioning, and is used for improving the accuracy of indoor temperature regulation of the air conditioning system. The air conditioning system includes: an indoor unit; a remote controller; a first temperature sensor; a second temperature sensor; a controller configured to: acquiring a target calculation mode of the indoor temperature selected by a user; the target calculation mode is used for indicating a key detection temperature for calculating the indoor temperature, wherein the key detection temperature comprises a first environment temperature detected by a first temperature sensor or a second environment temperature detected by a second temperature sensor; determining a target indoor temperature calculation strategy from a plurality of indoor temperature calculation strategies in a target calculation mode according to control information of an air conditioning system and the target calculation mode; the control information comprises the running state of the indoor unit, the running mode of the air conditioning system and the indoor temperature calculation parameter; and determining the indoor temperature according to the target indoor temperature calculation strategy.

Description

Air conditioning system and control method thereof

Technical Field

The application relates to the technical field of air conditioners, in particular to an air conditioning system and a control method thereof.

Background

With the development of economy and society, air conditioners are increasingly used in various places such as entertainment, home, work and the like.

Currently, most air conditioning systems regulate indoor temperature based on direct measurement values of a certain temperature sensor. However, the temperature sensor in the air conditioning system is affected by the installation position of the air conditioning system, for example, the air conditioning system is installed at a corner or the like, and the temperature sensor in the air conditioning system has the problem that the measured value is inaccurate and the indoor overall temperature cannot be reflected. Therefore, the air conditioning system operates based on the measured value, and the accuracy of the air conditioning system on indoor temperature regulation can be affected.

Disclosure of Invention

The embodiment of the application provides an air conditioning system and a control method thereof, which are used for improving the accuracy of indoor temperature regulation of the air conditioning system.

In order to achieve the above purpose, the present application adopts the following technical scheme.

In a first aspect, an embodiment of the present application provides an air conditioning system, including: an indoor unit; a remote controller; the first temperature sensor is arranged on the remote controller and used for detecting a first environment temperature; the second temperature sensor is arranged in the indoor environment where the indoor unit is positioned and is used for detecting the second environment temperature; a controller configured to: acquiring a target calculation mode of the indoor temperature selected by a user; the target calculation mode is used for indicating a key detection temperature for calculating the indoor temperature, wherein the key detection temperature comprises a first environment temperature detected by a first temperature sensor or a second environment temperature detected by a second temperature sensor; determining a target indoor temperature calculation strategy from a plurality of indoor temperature calculation strategies in a target calculation mode according to control information of an air conditioning system and the target calculation mode; the control information comprises the running state of the indoor unit, the running mode of the air conditioning system and the indoor temperature calculation parameter; and determining the indoor temperature according to the target indoor temperature calculation strategy.

The technical scheme provided by the embodiment of the application at least has the following beneficial effects: the application provides an air conditioning system, which is characterized in that a target indoor temperature calculation strategy is determined in a plurality of indoor temperature calculation strategies in the target calculation mode by acquiring a target calculation mode of indoor temperature selected by a user and control information of the air conditioning system, and then, the indoor temperature is determined according to the target indoor temperature calculation strategy. It can be understood that the air conditioning system provided by the application can determine different target indoor temperature calculation strategies according to different control information and different target calculation modes of the air conditioning system. Therefore, the air conditioning system can flexibly calculate the indoor temperature under different conditions, the problem of inaccurate indoor temperature caused by directly taking the measured value of the temperature sensor limited by the position as the indoor temperature is avoided, and the accuracy of determining the indoor temperature of the air conditioning system is improved.

In some embodiments, the operation state of the indoor unit is an operation state of the indoor unit when the indoor temperature reaches a user-set temperature, and the operation state includes an on state and an off state.

In some embodiments, the air conditioning system further comprises: the third temperature sensor is arranged at the return air inlet of the indoor unit and is used for detecting the return air temperature; the target indoor temperature calculation strategy is used for indicating that the return air temperature is taken as the indoor temperature under the condition that the key detection temperature is the first environment temperature; alternatively, the target indoor temperature calculation strategy is used for indicating the first ambient temperature as the indoor temperature; alternatively, the target indoor temperature calculation strategy is used to indicate the average of the return air temperature and the first ambient temperature as the indoor temperature.

In some embodiments, the target indoor temperature calculation strategy is used to indicate return air temperature as the indoor temperature in the event that the critical detected temperature is the second ambient temperature; alternatively, the target indoor temperature calculation strategy is used for indicating the second ambient temperature as the indoor temperature; alternatively, the target indoor temperature calculation strategy is used to indicate the average of the return air temperature and the second ambient temperature as the indoor temperature.

In some embodiments, the indoor unit includes an indoor fan; an air conditioning system, further comprising: the fourth temperature sensor is arranged at the air supply port of the indoor unit and used for detecting the air supply temperature; a controller, further configured to: under the condition that the running state of the indoor unit is in a starting state and the running mode is a heating mode, acquiring the first air quantity of the indoor fan and the first air supply temperature detected by a fourth temperature sensor at a first moment; when the first air supply temperature is greater than or equal to a first preset temperature, the first air quantity is adjusted to a second air quantity; wherein the second air volume is larger than or equal to the first air volume; detecting a second air supply temperature at a second moment by a fourth temperature sensor; the second moment is a moment after the first moment; when the second air supply temperature is less than or equal to the second preset temperature, the second air quantity is regulated back to the first air quantity; the second preset temperature is less than the first preset temperature.

In a second aspect, an embodiment of the present application provides a control method of an air conditioning system, where the method is applied to the air conditioning system, the method includes: acquiring a target calculation mode of the indoor temperature selected by a user; the target calculation mode is used for indicating a key detection temperature for calculating the indoor temperature, wherein the key detection temperature comprises a first environment temperature detected by a first temperature sensor or a second environment temperature detected by a second temperature sensor; determining a target indoor temperature calculation strategy from a plurality of indoor temperature calculation strategies in a target calculation mode according to control information of an air conditioning system and the target calculation mode; the control information comprises the running state of the indoor unit, the running mode of the air conditioning system and the indoor temperature calculation parameter; and determining the indoor temperature according to the target indoor temperature calculation strategy.

In a third aspect, an embodiment of the present application provides a controller, including: one or more processors; one or more memories; wherein the one or more memories are configured to store computer program code comprising computer instructions that, when executed by the one or more processors, cause the controller to perform the method of controlling any of the air conditioning systems provided in the second aspect.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium including computer instructions that, when run on a computer, cause the computer to perform any one of the control methods of the air conditioning system provided in the second aspect.

In a fifth aspect, embodiments of the present application provide a computer program product directly loadable into a memory and including software code, when loaded and executed via a computer, for enabling the implementation of a control method of any one of the air conditioning systems as provided in the second aspect.

It should be noted that the above-mentioned computer instructions may be stored in whole or in part on a computer-readable storage medium. The computer readable storage medium may be packaged together with the processor of the controller or may be packaged separately from the processor of the controller, which is not limited in the present application.

The advantageous effects described in the second to fifth aspects of the present application may be referred to for the advantageous effect analysis of the first aspect, and will not be described here again.

Drawings

The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate and do not limit the application.

Fig. 1 is a schematic diagram of an air conditioning system according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of an air conditioning system according to an embodiment of the present application;

FIG. 3 is a schematic diagram illustrating connection of a four-way valve according to an embodiment of the present application;

FIG. 4 is a schematic diagram illustrating connection of a four-way valve according to an embodiment of the present application;

fig. 5 is a schematic diagram of a circulation principle of an air conditioning system according to an embodiment of the present application;

fig. 6 is a schematic diagram of a circulation principle of an air conditioning system according to an embodiment of the present application;

fig. 7 is a schematic hardware structure of an air conditioning system according to an embodiment of the present application;

fig. 8 is a flowchart of a control method of an air conditioning system according to an embodiment of the present application;

fig. 9 is a flowchart of a control method of an air conditioning system according to an embodiment of the present application;

fig. 10 is a gear change schematic diagram of an indoor fan according to an embodiment of the present application;

FIG. 11 is a flowchart of a control method of an air conditioning system according to an embodiment of the present application;

fig. 12 is a flowchart of a control method of an air conditioning system according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art. In addition, when describing a pipeline, the terms "connected" and "connected" as used herein have the meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In embodiments of the application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the related art, the air conditioning system takes the measured value of the return air temperature sensor at the return air inlet of the indoor unit as the indoor temperature, or takes the measured value of the temperature sensor on the remote controller as the indoor temperature, but is limited by the installation position of the air conditioning system, such as the installation position of the air conditioning system at a corner or the like, or is limited by the placement position of the remote controller, the measured value of the return air temperature sensor at the return air inlet or the temperature sensor on the remote controller is inaccurate, the problem of the indoor overall temperature cannot be reflected, and the accuracy of the air conditioning system on indoor temperature control is affected.

Based on the above, the embodiment of the application provides a control method of an air conditioning system, which determines a target indoor temperature calculation strategy from a plurality of indoor temperature calculation strategies in a target calculation mode by acquiring a target calculation mode of an indoor temperature selected by a user and control information of the air conditioning system, and further determines an indoor temperature according to the target indoor temperature calculation strategy. Therefore, the air conditioning system can flexibly calculate the indoor temperature under different conditions, the problem of accurate indoor temperature caused by directly taking the measured value of the temperature sensor limited by the position as the indoor temperature is avoided, and the accuracy of the air conditioning system on indoor temperature detection is improved.

Fig. 1 is a schematic diagram illustrating the composition of an air conditioning system according to an exemplary embodiment of the present application. As shown in fig. 1, the air conditioning system 10 includes an indoor unit 11, an outdoor unit 12, a remote controller 13, and a controller 14 (not shown in fig. 1).

The indoor unit 11 is exemplified by an indoor unit 11, and the indoor unit is usually mounted on an indoor wall surface or the like. For another example, the indoor unit is also an indoor unit mode of the indoor unit.

The outdoor unit 12 is usually installed outdoors, and can be connected to a plurality of indoor units 11 for heat exchange in the indoor environment. In fig. 1, the outdoor unit 12 is shown by a broken line because the outdoor unit 12 is located outdoors on the opposite side of the indoor unit 11 across the wall surface.

The remote controller 13 has a function of communicating with the controller 14 using, for example, infrared rays or other communication means. The remote control is used for various controls that a user can control the air conditioning system, enabling interaction between the user and the air conditioning system 10.

In some embodiments, the remote controller 13 has a display panel and function keys including function keys such as an operation switch, a temperature setting switch, a wind direction setting switch, and an air volume setting switch, which can be used by a user to perform operations of the switches. The operation switch is a switch for switching between the operation and the stop of the air conditioning system 10, and the air conditioning system 10 is alternately switched between the operation and the stop each time the operation switch is operated. The temperature setting switch is a switch for inputting a room temperature desired by a user. The wind direction setting switch is a switch for setting a wind direction, and the air volume setting switch is a switch for inputting an air volume.

Fig. 2 is a schematic structural view of an air conditioning system according to an exemplary embodiment of the present application. As shown in fig. 2, the air conditioning system 10 includes an indoor unit 11, an outdoor unit 12, a remote controller 13 (not shown in fig. 2), and a controller 14 (not shown in fig. 2).

The indoor unit 11 includes: an indoor heat exchanger 111, an indoor fan 112, and an indoor throttle device 113. The outdoor unit 12 includes: a compressor 121, a four-way valve 122, an outdoor heat exchanger 123, an outdoor fan 124, an outdoor throttle device 125, and a gas-liquid separator 126.

In some embodiments, the indoor heat exchanger 111 has a first inlet and outlet for flowing liquid refrigerant between it and the indoor throttling device 113, and has a second inlet and outlet for flowing gaseous refrigerant between it and the suction inlet of the compressor 121. The indoor heat exchanger 111 exchanges heat between the indoor air and the refrigerant flowing through the heat transfer pipe connected between the first inlet and the second inlet.

In some embodiments, the indoor fan 112 generates an airflow of the indoor air passing through the indoor heat exchanger 111 to promote heat exchange of the refrigerant flowing in the heat transfer tube between the first and second inlets and outlets with the indoor air.

In some embodiments, the indoor throttle device 113 is used to regulate the flow of refrigerant in the air conditioning system piping. For example, the indoor throttle device 113 is an electronic expansion valve, has a function of expanding and decompressing the refrigerant flowing through the electronic expansion valve, and can be used to adjust the supply amount of the refrigerant in the pipe. When the electronic expansion valve decreases the opening degree, the flow path resistance of the refrigerant passing through the electronic expansion valve increases. When the electronic expansion valve increases the opening degree, the flow path resistance of the refrigerant passing through the electronic expansion valve decreases. In this way, when the opening degree of the electronic expansion valve is changed, the flow rate of the refrigerant flowing to the indoor heat exchanger 111 is changed.

In some embodiments, the compressor 121 is disposed between the outdoor throttle device 125 and the gas-liquid separator 126, and is configured to compress the refrigerant sent from the gas-liquid separator 126 and send the compressed refrigerant to the outdoor throttle device 125 via the four-way valve 122.

In some embodiments, four ports of the four-way valve 122 are connected to the compressor 121, the outdoor heat exchanger 123, the gas-liquid separator 126, and the indoor heat exchanger 111, respectively. The four-way valve 122 is used to change the flow direction of the refrigerant in the system pipeline to realize the conversion between refrigeration and heating.

The four ports of the four-way valve 122 are, for example, a D port, an E port, an S port, and a C port, respectively. The D port of the four-way valve 122 is connected to the compressor 121, the E port of the four-way valve 122 is connected to the indoor heat exchanger 111, the S port of the four-way valve 122 is connected to the gas-liquid separator 126, and the C port of the four-way valve 122 is connected to the outdoor heat exchanger 123. In the cooling mode, as shown in fig. 3, the D port and the C port of the four-way valve are in communication, and the E port and the S port are in communication. In the heating mode, as shown in fig. 4, the D port and the E port of the four-way valve are connected, and the C port and the S port are connected.

In some embodiments, the outdoor heat exchanger 123 has a third inlet and outlet for passing refrigerant between the four-way valve 122 and the discharge port of the compressor 121, and has a fourth inlet and outlet for passing refrigerant between the outdoor heat exchanger 123 and the outdoor throttle device 125. The outdoor heat exchanger 123 exchanges heat between the outdoor air and the heat-cooling machine flowing through the heat transfer pipe connected between the third inlet and the fourth inlet.

In some embodiments, the outdoor fan 124 promotes heat exchange with the outdoor air by generating an air flow of the outdoor air passing through the outdoor heat exchanger 123, for the refrigerant flowing in the heat transfer pipe between the third inlet and the fourth inlet.

In some embodiments, the outdoor throttle device 125 is used to regulate the flow of refrigerant in the air conditioning system piping. For example, the outdoor throttle device 113 is an electronic expansion valve, has a function of expanding and decompressing the refrigerant flowing through the electronic expansion valve, and can be used to adjust the supply amount of the refrigerant in the pipe.

In some embodiments, the outlet of the gas-liquid separator 126 is connected to the inlet of the compressor 121, and the inlet of the gas-liquid separator 126 is connected to the S port of the four-way valve 122. In the gas-liquid separator 126, the refrigerant flowing from the indoor heat exchanger 111 to the compressor 121 via the four-way valve 122 is separated into a gas refrigerant and a liquid refrigerant, for example, in the refrigeration cycle. The gas refrigerant is mainly supplied from the gas-liquid separator 126 to the discharge port of the compressor 121.

In some embodiments, the controller 14 refers to a device that may generate operation control signals to instruct the air conditioning system 10 to execute control instructions based on the instruction operation code and the timing signals. By way of example, the controller may be a central processing unit (central processing unit, CPU), a general purpose processor network processor (network processor, NP), a digital signal processor (digital signal processing, DSP), a microprocessor, a microcontroller, a programmable logic device (programmable logic device, PLD), or any combination thereof. The controller may also be any other device having processing functionality, such as a circuit, device or software module, for which embodiments of the application are not limited in any way.

In addition, the controller 14 may be used to control the operation of various components within the air conditioning system 10 such that the various components of the air conditioning system 10 operate to perform various predetermined functions of the air conditioning system 10.

Fig. 5 is a schematic view of a circulation principle of an air conditioning system according to an exemplary embodiment of the present application. As shown in fig. 5, in the cooling mode, the air conditioning system 10 compresses a low-temperature low-pressure gaseous refrigerant into a high-temperature high-pressure gaseous refrigerant by the compressor 121, the compressed refrigerant is discharged from the port D of the four-way valve 122 and enters the outdoor heat exchanger 123 through the port C, the refrigerant exchanges heat with outdoor air in the outdoor heat exchanger 123 and is condensed into a medium-temperature high-pressure liquid refrigerant, the refrigerant flowing out of the outdoor heat exchanger 123 is throttled and depressurized by the outdoor throttle device 125 and the indoor throttle device 113 and then becomes a low-temperature low-pressure gas-liquid two-phase refrigerant, the throttled and depressurized refrigerant exchanges heat with indoor air through the indoor heat exchanger 111 and becomes a low-temperature low-pressure gaseous refrigerant, the refrigerant flowing out of the indoor heat exchanger 111 enters the gas-liquid separator 126 through the port E of the four-way valve 122 and returns to the compressor 121 again, and the recycling of the refrigerant is realized.

Fig. 6 is a schematic view of a circulation principle of an air conditioning system according to an exemplary embodiment of the present application. As shown in fig. 6, in the heating mode, the air conditioning system 10 compresses a low-temperature low-pressure gaseous refrigerant into a high-temperature high-pressure gaseous refrigerant by the compressor 121, the compressed refrigerant is discharged from the port E by the port D of the four-way valve 122 and enters the indoor heat exchanger 111, the heat exchange with indoor air in the indoor heat exchanger 111 is performed, the heat exchange is performed with the indoor air, then the low-temperature low-pressure gaseous refrigerant becomes a medium-temperature high-pressure liquid refrigerant, the refrigerant flowing out of the indoor heat exchanger 111 is throttled and depressurized by the indoor throttling device 113 and the outdoor throttling device 125, then the low-temperature low-pressure gas-liquid two-phase refrigerant is changed into a low-temperature low-pressure gaseous refrigerant, the throttled and depressurized refrigerant exchanges heat with outdoor air by the outdoor heat exchanger 123, then the refrigerant flowing out of the outdoor heat exchanger 123 enters the gas-liquid separator 126 by the port S by the port C of the four-way valve 122, and the refrigerant returns to the compressor 121 again, and thus recycling of the refrigerant is realized.

Fig. 7 is a hardware configuration block diagram of an air conditioning system according to an exemplary embodiment of the present application. As shown in fig. 7, the air conditioning system 10 further includes a first temperature sensor 201, a second temperature sensor 202, and a third temperature sensor 203.

Wherein, the first temperature sensor 201, the second temperature sensor 202 and the third temperature sensor 203 are all connected with the controller 14.

In some embodiments, the first temperature sensor 201 is disposed on the remote controller 13 for detecting a first ambient temperature.

It will be appreciated that since the remote control 13 is typically placed near the location where the user is located, the first ambient temperature detected by the first temperature sensor 201 is the ambient temperature around the user.

In some embodiments, a second temperature sensor 202 is disposed at a user-selected set location for detecting a second ambient temperature at the set location.

Alternatively, the second temperature sensor 202 may be provided on top of the indoor environment in which the indoor unit 11 is located.

In some embodiments, the third temperature sensor 203 is disposed at an air inlet of the indoor unit 11, for detecting a return air temperature.

In some embodiments, the indoor fan motor 204 is used to drive or alter the rotational speed of the indoor fan 204.

In some embodiments, the air conditioning system 10 may further include one or more of the following: an indoor fan motor 204, a communicator 205, and a memory 206.

In some embodiments, the indoor fan motor 204 is used to drive or alter the rotational speed of the indoor fan 112.

In some embodiments, the communicator 205 is configured to establish a communication connection with other network entities, such as with a terminal device. The communicator 205 may include a Radio Frequency (RF) module, a cellular module, a wireless fidelity (wireless fidelity, WIFI) module, a GPS module, and the like. Taking an RF module as an example, the RF module may be used for receiving and transmitting signals, in particular, transmitting the received information to the controller 14 for processing; in addition, the signal generated by the controller 14 is transmitted. Typically, the RF circuitry may include, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (low noise amplifier, LNA), a duplexer, and the like.

In some embodiments, memory 206 may be used to store software programs and data. The controller 14 performs various functions and data processing of the air conditioning system 10 by running software programs or data stored in the memory 206. The memory 206 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device. Memory 206 stores an operating system that enables operation of air conditioning system 10. The memory 206 in the present application may store an operating system and various application programs, and may also store codes for executing the control method of the air conditioning system provided in the embodiment of the present application.

Those skilled in the art will appreciate that the hardware configuration shown in fig. 7 is not limiting of the air conditioning system, which may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.

The embodiments of the present application will be described in detail below with reference to the drawings attached to the specification.

As shown in fig. 8, an embodiment of the present application provides a control method of an air conditioning system, including the steps of:

s101, the controller acquires a target calculation mode of the indoor temperature selected by a user.

The target calculation mode is used for indicating a key detection temperature for calculating the indoor temperature, wherein the key detection temperature comprises a first environment temperature detected by the first temperature sensor or a second environment temperature detected by the second temperature sensor.

In one possible implementation, the controller may receive information of a computing mode selected by the user.

For example, when a user needs to perform cooling or heating using the air conditioning system, the user may select a target calculation mode of the indoor temperature through the terminal device or a remote controller of the air conditioning system, and further, the controller may receive information of the target calculation mode selected by the user.

In another possible implementation, the controller may receive a user-selected temperature sensor and determine the target computing mode based on the temperature sensor.

For example, when a user needs to use the air conditioning system to perform cooling or heating, the user may select a target temperature sensor used by the air conditioning system through a terminal device or a remote controller of the air conditioning system, and the controller may receive the temperature sensor selected by the user and use a temperature detected by the target temperature sensor as a key detection temperature required for indoor temperature calculation to determine a target calculation mode.

In still another possible implementation manner, the controller may acquire a preset calculation mode when the user selection information is not acquired, and determine the preset calculation mode as the target calculation mode.

S102, the controller determines a target indoor temperature calculation strategy from a plurality of indoor temperature calculation strategies in a target calculation mode according to control information of the air conditioning system and the target calculation mode.

The control information comprises the running state of the indoor unit, the running mode of the air conditioning system and the indoor temperature calculation parameter. In some embodiments, the control information may be determined based on user-set operating parameter information of the air conditioning system.

The running state of the indoor unit refers to the running state of the indoor unit when the indoor temperature reaches the user set temperature, and the running state comprises a starting-up state and a shutdown state. The operation modes of the air conditioning system include a heating mode, a cooling mode, a dehumidifying mode, and an automatic mode. The indoor temperature calculation parameters include a first indoor temperature calculation parameter, a second indoor temperature calculation parameter, and a third indoor temperature calculation parameter.

Optionally, when the indoor temperature reaches the user set temperature, the indoor fan is controlled to slow down so as to stop the indoor unit.

In some embodiments, where the target computing mode is used to indicate that the key detected temperature for computing the indoor temperature is the first ambient temperature or the second ambient temperature, the air conditioning system defaults to operating with the second indoor temperature computing parameter.

In some embodiments, the user may set an operation mode of at least one air conditioning system, and the target calculation mode operates in the operation mode of the air conditioning system set by the user.

For example, if the operation mode of the air conditioning system set by the user is all operation modes, the target calculation mode is operated in all operation modes. If the operation mode of the air conditioning system set by the user is a cooling mode or a dehumidifying mode, the target calculation mode is operated in the cooling mode or the dehumidifying mode, and in the automatic mode. If the operation mode of the air conditioning system set by the user is a heating mode, the target calculation mode operates in the heating mode and the automatic mode.

In some embodiments, where the target computing mode is to indicate that the key detected temperature for computing the indoor temperature is the first ambient temperature, the plurality of indoor temperature computing strategies includes a first indoor temperature computing strategy, a second indoor temperature computing strategy, and a third indoor temperature computing strategy.

In some embodiments, in the case where the key detected temperature is the first ambient temperature, if the target indoor temperature calculation strategy is the first indoor temperature calculation strategy, the target indoor temperature calculation strategy is used to indicate the return air temperature as the indoor temperature.

Or if the target indoor temperature calculation strategy is the second indoor temperature calculation strategy, the target indoor temperature calculation strategy is used for indicating the first environment temperature as the indoor temperature.

Or if the target indoor temperature calculation strategy is the third indoor temperature calculation strategy, the target indoor temperature calculation strategy is used for indicating that the average value of the return air temperature and the first environment temperature is taken as the indoor temperature.

In some embodiments, the controller determines a target indoor temperature calculation strategy among a plurality of indoor temperature calculation strategies in a target calculation mode according to control information of the air conditioning system and the target calculation mode.

Optionally, the determining of the target indoor temperature calculation strategy has a preset corresponding relationship, where the preset corresponding relationship includes control information of the air conditioning system and a target calculation mode.

For example, in the case where the target calculation mode is used to indicate that the key detected temperature for calculating the indoor temperature is the first ambient temperature, a preset correspondence relationship between the target indoor temperature calculation strategy and control information of the air conditioning system is shown in table 1 below.

TABLE 1

Wherein 00 is a first indoor temperature calculation parameter; 01 is a second indoor temperature calculation parameter; 02 is a third indoor temperature calculation parameter; c1 is a first indoor temperature calculation strategy; c2 is a second indoor temperature calculation strategy; c3 is a third indoor temperature calculation strategy.

For example, when the target calculation mode is used for indicating that the key detected temperature for calculating the indoor temperature is the first ambient temperature, if the operation state of the indoor unit is the on state, the operation mode of the air conditioning system is all modes, and the indoor temperature calculation parameter is the first indoor temperature calculation parameter 00, the target indoor temperature calculation policy is the first indoor temperature calculation policy C1 when the air conditioning system is in the cooling mode.

Or if the running state of the indoor unit is the starting state, the running mode of the air conditioning system is a refrigeration mode or a dehumidification mode, and the indoor temperature calculation parameter is a second indoor temperature calculation parameter 01, when the air conditioning system runs in the dehumidification mode, the target indoor temperature calculation strategy is a second indoor temperature calculation strategy C2.

Or if the running state of the indoor unit is in a shutdown state, the running mode of the air conditioning system is a heating mode, and the indoor temperature calculation parameter is the third indoor temperature calculation parameter 02, when the air conditioning system runs in the heating mode, the target indoor temperature calculation strategy is the first indoor temperature calculation strategy C3.

In some embodiments, where the target computing mode is to indicate that the key detected temperature for computing the indoor temperature is the second ambient temperature, the plurality of indoor temperature computing strategies includes a first computing strategy, a fourth indoor temperature computing strategy, and a fifth indoor temperature computing strategy.

In some embodiments, in the case where the critical detected temperature is the second ambient temperature, if the target indoor temperature calculation strategy is the first indoor temperature calculation strategy, the target indoor temperature calculation strategy is used to indicate the return air temperature as the indoor temperature.

Or if the target indoor temperature calculation strategy is the fourth indoor temperature calculation strategy, the target indoor temperature calculation strategy is used for indicating the second environment temperature as the indoor temperature.

Or if the target indoor temperature calculation strategy is the fifth indoor temperature calculation strategy, the target indoor temperature calculation strategy is used for indicating that the average value of the return air temperature and the second environment temperature is taken as the indoor temperature.

For example, in the case where the target calculation mode is used to indicate that the key detected temperature for calculating the indoor temperature is the first ambient temperature, a preset correspondence relationship between the target indoor temperature calculation strategy and control information of the air conditioning system is shown in table 2 below.

TABLE 2

Wherein C4 is a fourth indoor temperature calculation strategy; c5 is a fifth indoor temperature calculation strategy.

When the operation state of the indoor unit is the off state, the return air temperature of the indoor unit continuously rises due to the retention of the hot air in the indoor unit, and even if the indoor temperature is reduced, the return air temperature of the indoor unit is still high, so that the condition that the indoor unit is restarted cannot be achieved. In order to prevent the indoor unit from reaching the starting condition even if the indoor temperature is reduced, the temperature value detected by the third temperature sensor at the position far away from the return air inlet of the indoor unit, namely the values detected by the second temperature sensor and the third temperature sensor, can be utilized to calculate the indoor temperature. Therefore, when the operation state of the indoor unit is the off state, the target indoor temperature calculation strategy is the fifth indoor temperature calculation strategy C5.

For example, when the target calculation mode is used for indicating that the key detected temperature for calculating the indoor temperature is the second ambient temperature, if the operation state of the indoor unit is the on state, the operation mode of the air conditioning system is all modes, and the indoor temperature calculation parameter is the first indoor temperature calculation parameter 00, the target indoor temperature calculation strategy is the fourth indoor temperature calculation strategy C4 when the air conditioning system is in the cooling mode.

Or if the running state of the indoor unit is the starting state, the running mode of the air conditioning system is a refrigeration mode or a dehumidification mode, and the indoor temperature calculation parameter is the second indoor temperature calculation parameter 01, when the air conditioning system runs in the dehumidification mode, the target indoor temperature calculation strategy is a fifth indoor temperature calculation strategy C5.

Or if the running state of the indoor unit is the starting state, the running mode of the air conditioning system is a heating mode, the indoor temperature calculation parameter is the third indoor temperature calculation parameter 02, and when the air conditioning system runs in the refrigerating mode, the target indoor temperature calculation strategy is the first indoor temperature calculation strategy C1.

S103, the controller determines the indoor temperature according to the target indoor temperature calculation strategy.

In some embodiments, the controller takes the return air temperature as the indoor temperature in the case where the target indoor temperature calculation strategy is the first indoor temperature calculation strategy.

In some embodiments, the controller takes the first ambient temperature as the indoor temperature in the case where the target indoor temperature calculation strategy is the second indoor temperature calculation strategy.

In some embodiments, the controller takes an average of the return air temperature and the first ambient temperature as the indoor temperature in the case where the target indoor temperature calculation strategy is the third indoor temperature calculation strategy.

In some embodiments, the controller takes the second ambient temperature as the indoor temperature in the case where the target indoor temperature calculation strategy is a fourth indoor temperature calculation strategy.

In some embodiments, the controller takes an average of the return air temperature and the second ambient temperature as the indoor temperature in the case where the target indoor temperature calculation strategy is the fifth indoor temperature calculation strategy.

Based on the embodiment shown in fig. 8, the embodiment of the application provides a control method of an air conditioning system, which determines a target indoor temperature calculation strategy from a plurality of indoor temperature calculation strategies in a target calculation mode by acquiring a target calculation mode of an indoor temperature selected by a user and control information of the air conditioning system, and further determines an indoor temperature according to the target indoor temperature calculation strategy. It can be understood that the air conditioning system provided by the application can determine different target indoor temperature calculation strategies according to different control information and different target calculation modes of the air conditioning system. Therefore, the air conditioning system can flexibly calculate the indoor temperature under different conditions, the problem of accurate indoor temperature caused by directly taking the measured value of the temperature sensor limited by the position as the indoor temperature is avoided, and the accuracy of the air conditioning system on indoor temperature detection is improved.

In some embodiments, as shown in fig. 9, the method may further comprise the steps of:

s201, the controller obtains a first air quantity and a first air supply temperature of the indoor fan at a first moment when the running state of the indoor unit is a starting state and the air conditioning system runs in a heating mode.

In some embodiments, when the operation state of the indoor unit is a start-up state and the air conditioning system is operating in a heating mode, the controller obtains a first air volume of the indoor fan and a first air supply temperature detected by the fourth temperature sensor at a first time.

In some embodiments, the controller may also acquire a first gear of the indoor fan at the first time.

For example, the controller may determine a gear corresponding to the first air volume according to the first air volume of the indoor fan. Wherein, this gear includes strongest windshield position, powerful windshield position, high windshield position and apoplexy gear. The air quantity corresponding to the strongest windshield position is larger than the air quantity corresponding to the strong windshield position, the air quantity corresponding to the strong windshield position is larger than the air quantity corresponding to the high windshield position, and the air quantity corresponding to the high windshield position is larger than the air quantity corresponding to the middle wind gear position.

S202, the controller adjusts the first air quantity to the second air quantity under the condition that the first air supply temperature is greater than or equal to a first preset temperature.

Wherein the second air volume is greater than or equal to the first air volume.

Alternatively, the first preset temperature may be 60 ℃.

In some embodiments, the controller adjusts the first air volume to the second air volume when the first supply air temperature is greater than or equal to a first preset temperature.

In an exemplary embodiment, the controller determines a first gear corresponding to the first air volume according to the first air volume of the indoor fan when the first air supply temperature is greater than or equal to a first preset temperature, and further increases the first gear by one gear to adjust the first air volume to the second air volume. The gear of the indoor fan is adjusted as shown in table 3 below.

TABLE 3 Table 3

Normal state	Strongest wind gear	Strong wind screen	High windshield position	Middle windshield position
					Upshift state	Strongest wind gear	Strong wind screen	Strong wind screen	High windshield position

Wherein, the normal state refers to the gear state of the indoor fan before adjusting the air quantity; the increasing state refers to a gear state of the indoor fan after the air quantity is adjusted.

It should be noted that, since the strong wind shielding position and the strongest wind shielding position are already the higher positions of the indoor fan, when the indoor fan is in the strong wind shielding position or the strongest wind shielding position, the indoor fan is not required to be lifted, that is, the current gear is kept unchanged.

For example, as shown in fig. 10, if the first gear of the indoor fan is a high damper, if the first air supply temperature is greater than or equal to the first preset temperature, the first gear is raised to a strong damper to adjust the first air volume to the second air volume. Wherein the second air volume is larger than the first air volume.

Or if the first gear of the indoor fan is a strong windshield position, keeping the current first gear unchanged, namely keeping the second air quantity equal to the first air quantity under the condition that the first air supply temperature is greater than or equal to a first preset temperature.

And S203, the controller detects the second air supply temperature through a fourth temperature sensor at the second moment.

Wherein the second time is a time after the first time.

S204, when the second air supply temperature is smaller than or equal to the second preset temperature, the controller adjusts the second air quantity back to the first air quantity.

Wherein the second preset temperature is less than the first preset temperature.

Alternatively, the second preset temperature may be 50 ℃.

In some embodiments, the controller adjusts the second air volume back to the first air volume when the second supply air temperature is less than or equal to the second preset temperature.

The controller determines a second gear corresponding to the second air volume according to the second air volume of the indoor fan. Further, the second gear is adjusted back to the first gear so as to adjust the second air quantity back to the first air quantity.

For example, as shown in fig. 10, if the second gear of the indoor fan is a strong wind gear and the first gear is a high wind gear, when the second air supply temperature is less than or equal to the second preset temperature, the strong wind gear is adjusted back to the high wind gear so as to adjust the second air quantity back to the first air quantity. Wherein the second air volume is larger than the first air volume.

Or if the second gear of the indoor fan is a strong windshield position, and the first gear is the strong windshield position, when the second air supply temperature is less than or equal to the second preset temperature, the strong windshield position is kept unchanged, namely the second air quantity is equal to the first air quantity.

The following describes an exemplary complete process for determining the air volume of the indoor fan in connection with the flowchart shown in fig. 11.

As shown in fig. 11, the flow starts.

S11, the controller obtains the first air quantity and the first air supply temperature of the indoor fan at a first moment under the condition that the running state of the indoor unit is in a starting state and the air conditioning system runs in a heating mode.

Judging whether the first air supply temperature is greater than or equal to a first preset temperature.

If yes, the following step S12 is executed.

If not, the step S11 is re-executed until the first air supply temperature is greater than or equal to the first preset temperature.

S12, the controller adjusts the first air quantity to the second air quantity.

S13, the controller detects a second air supply temperature at a second moment.

And judging whether the second air supply temperature is less than or equal to a second preset temperature.

If yes, the following step S14 is executed.

If not, a re-step S13 is performed until the second supply air temperature is less than or equal to the second preset temperature.

S14, the controller adjusts the second air quantity back to the first air quantity.

In some embodiments, the controller controls the indoor unit to stop and re-detect the return air temperature if the return air temperature detected by the fourth temperature sensor reaches the first preset return air temperature under the condition that the operation state of the indoor unit is the on state and the air conditioning system operates in the heating mode.

Further, when the re-detected return air temperature does not reach the second preset return air temperature, the indoor unit is controlled to be restarted.

Alternatively, the first preset return air temperature may be 38 ℃, and the second preset return air temperature may be 36 ℃.

The following describes an exemplary complete flow of controlling the operation state of the indoor unit in conjunction with the flowchart shown in fig. 12.

As shown in fig. 12, the flow starts.

S21, the controller detects the return air temperature through the fourth temperature sensor under the condition that the running state of the indoor unit is in a starting state and the air conditioning system runs in a heating mode.

Judging whether the return air temperature reaches a first preset return air temperature.

If yes, the following step S22 is executed.

If not, step S21 is re-executed until the return air temperature reaches the first preset return air temperature.

S22, the controller controls the indoor unit to stop.

S23, the controller detects the return air temperature through the fourth temperature sensor again.

And judging whether the return air temperature reaches a second preset return air temperature or not.

If yes, step S23 is re-executed until the return air temperature reaches the second preset return air temperature.

If not, step S24 is re-executed.

S24, the controller controls the indoor unit to restart.

In some embodiments, the normal protection control is performed when a thermistor of the third temperature sensor is detected to be short-circuited.

In some embodiments, in the case where a master remote controller and at least one slave remote controller are provided in the air conditioning system, the controller only takes the temperature sensor on the master remote controller as the second temperature sensor.

In some embodiments, when the target calculation mode is used for indicating that the key detection temperature for calculating the indoor temperature is the first ambient temperature, if the controller cannot detect the first ambient temperature through the first temperature sensor within the first preset time period, the return air temperature detected by the third temperature sensor is taken as the indoor temperature, and then the controller performs indoor temperature control according to the indoor temperature so as to achieve the user set temperature.

In some embodiments, when the target calculation mode is used for indicating that the key detected temperature used for calculating the indoor temperature is the second ambient temperature, the second temperature sensor is used for acquiring a first AD value, if the first AD value is the first preset AD value, the remote controller is determined to be faulty, the return air temperature detected by the third temperature sensor is taken as the indoor temperature, and the controller further performs indoor temperature control according to the indoor temperature so as to achieve the user set temperature.

The AD value is a signal value (such as a voltage signal, a current signal, etc.) detected by the temperature sensor. In addition, the AD value may be converted into a temperature value.

In some embodiments, if a thermistor on the remote controller is detected to be short-circuited, the remote controller is determined to be faulty, and the return air temperature detected by the first temperature sensor is taken as the indoor temperature.

In some embodiments, the controller determines that the second temperature sensor is successfully connected to the controller if the second AD value detected by the second temperature sensor is greater than the second preset AD value and less than the third preset AD value within the second preset time period.

Alternatively, the second preset time period may be 1 second.

In some embodiments, the controller determines that the second temperature sensor fails to connect with the controller if the second AD value detected by the second temperature sensor is less than or equal to a second preset AD value and greater than or equal to a third preset AD value.

Those skilled in the art will appreciate that in one or more of the examples described above, the functions described in the present invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, these functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above.

The foregoing is merely illustrative of specific embodiments of the present application, and the scope of the present application is not limited thereto, but any changes or substitutions within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An air conditioning system, comprising:

an indoor unit;

a remote controller;

the first temperature sensor is arranged on the remote controller and used for detecting a first environment temperature;

the second temperature sensor is arranged in the indoor environment where the indoor unit is positioned and is used for detecting a second environment temperature;

a controller configured to:

acquiring a target calculation mode of the indoor temperature selected by a user; the target calculation mode is used for indicating a key detection temperature for calculating the indoor temperature, wherein the key detection temperature comprises the first environment temperature detected by the first temperature sensor or the second environment temperature detected by the second temperature sensor;

determining a target indoor temperature calculation strategy from a plurality of indoor temperature calculation strategies in the target calculation mode according to the control information of the air conditioning system and the target calculation mode; the control information comprises the running state of the indoor unit, the running mode of the air conditioning system and indoor temperature calculation parameters;

And determining the indoor temperature according to the target indoor temperature calculation strategy.

2. An air conditioning system according to claim 1, wherein,

the running state of the indoor unit is the running state of the indoor unit when the indoor temperature reaches the user set temperature, and the running state comprises a starting-up state and a shutdown state.

3. The air conditioning system of claim 1, further comprising:

the third temperature sensor is arranged at the air return port of the indoor unit and is used for detecting the air return temperature;

the target indoor temperature calculation strategy is used for indicating the return air temperature as the indoor temperature under the condition that the key detection temperature is the first environment temperature; or alternatively, the process may be performed,

the target indoor temperature calculation strategy is used for indicating the first environment temperature as the indoor temperature; or alternatively, the process may be performed,

the target indoor temperature calculation strategy is used for indicating the average value of the return air temperature and the first environment temperature as the indoor temperature.

4. The air conditioning system of claim 3, wherein the target indoor temperature calculation strategy is for indicating the return air temperature as the indoor temperature if the key detected temperature is the second ambient temperature; or alternatively, the process may be performed,

The target indoor temperature calculation strategy is used for indicating the second environment temperature as the indoor temperature; or alternatively, the process may be performed,

the target indoor temperature calculation strategy is used for indicating the average value of the return air temperature and the second environment temperature as the indoor temperature.

5. The air conditioning system according to any one of claims 1 to 4, wherein the indoor unit includes an indoor fan;

the air conditioning system further comprises:

the fourth temperature sensor is arranged at the air supply port of the indoor unit and used for detecting the air supply temperature;

the controller is further configured to:

acquiring a first air quantity of the indoor fan and the first air supply temperature detected by the fourth temperature sensor at a first moment under the condition that the running state of the indoor unit is the starting state and the air conditioning system runs in a heating mode;

when the first air supply temperature is greater than or equal to a first preset temperature, the first air quantity is adjusted to a second air quantity; wherein the second air volume is greater than or equal to the first air volume;

detecting a second supply air temperature at a second moment by the fourth temperature sensor; the second time is a time after the first time;

When the second air supply temperature is less than or equal to a second preset temperature, the second air quantity is regulated back to the first air quantity; the second preset temperature is less than the first preset temperature.

6. A control method of an air conditioning system, applied to an air conditioning system, the method comprising:

acquiring a target calculation mode of the indoor temperature selected by a user; the target calculation mode is used for indicating a key detection temperature for calculating the indoor temperature, and the key detection temperature comprises a first environment temperature or a second environment temperature;

7. The method of claim 6, wherein the step of providing the first layer comprises,

8. The method of claim 6, wherein the target indoor temperature calculation strategy is used to indicate return air temperature as the indoor temperature if the key detected temperature is the first ambient temperature; or alternatively, the process may be performed,

9. The method of claim 8, wherein the target indoor temperature calculation strategy is used to indicate the return air temperature as the indoor temperature if the key detected temperature is the second ambient temperature; or alternatively, the process may be performed,

10. The method according to any one of claims 6 to 9, further comprising:

Acquiring a first air quantity of the indoor fan and a first air supply temperature detected by a fourth temperature sensor at a first moment when the running state of the indoor unit is the starting state and the running heating mode of the air conditioning system is the heating mode;

detecting a second air supply temperature at a second moment by a fourth temperature sensor; the second time is a time after the first time;