Control method and device for linked fresh air device and smart home system

Abstract

The present application relates to the technical field of smart home appliances, and discloses a control method for a linked fresh air device. The control method includes: when the outdoor fresh air has a promoting effect on the simultaneous heating process or the simultaneous cooling process of the first room and the second room where air flow exists, obtaining the current first temperature difference between the current first indoor temperature of the first room and the set temperature, as well as the current second temperature difference between the current first indoor temperature and the current outdoor temperature; determining the target temperature promotion coefficient corresponding to the current first temperature difference; determining the target first fresh air rate corresponding to the current second temperature difference and the target temperature promotion coefficient; determining the target second fresh air rate according to the target first fresh air rate; and controlling the fresh air devices of the two rooms respectively according to the two target fresh air rates. The control method can shorten the time required for the indoor temperatures of the two rooms to stabilize at the set temperature. The present application also discloses a control device for a linked fresh air device and a smart home system.

Description

Technical Field

[0001] The present application relates to the field of smart home technology, for example, to a control method and device for a linked fresh air device and a smart home system. Background Art

[0002] Currently, two adjacent rooms can have the same set temperature so that the temperature control device adjusts the temperature in both rooms to the set temperature. This allows users to experience a better temperature experience when moving between the two rooms. These two adjacent rooms can be two adjacent offices in an office setting or two adjacent rooms in a home setting. Furthermore, users not only have requirements for indoor temperature but also for indoor air freshness. A fresh air device can be used to supply outdoor air into a room, providing fresh air and improving the air freshness in the room.

[0003] In the process of adjusting the indoor temperature, the indoor temperature and the outdoor temperature are usually different. As fresh air is introduced from the outdoors into the indoors, the fresh air will interfere with the indoor temperature adjustment process, making it inconvenient to stably adjust the indoor temperature to a temperature range that is comfortable for the user.

[0004] In some existing fresh air air conditioning control processes, the indoor temperature and outdoor temperature are obtained, and the temperature difference between the indoor temperature and the outdoor temperature is calculated. Then, the speed of the indoor fan of the fresh air air conditioning is fine-tuned according to the temperature difference, and the relative amount of indoor air circulation and fresh air volume is changed. In this way, the cooling / heating power of the air conditioner is adjusted, and the temperature interference caused by the fresh air to the indoor temperature adjustment process is compensated, so as to improve the stability of the indoor temperature adjustment process.

[0005] During the implementation of the embodiments of the present application, it was found that at least the following problems exist in the related art:

[0006] For two rooms with air flow, when both rooms are heated up or cooled down at the same time, and the air introduced from the outside into the two rooms promotes the heating or cooling process of the two rooms, the air flow between the two rooms intensifies the heat transfer process between the two rooms. The existing technology is not conducive to the indoor temperature of the two rooms reaching the set temperature relatively quickly and stably.

[0007] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Summary of the Invention

[0008] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0009] The embodiments of the present application provide a control method, device and smart home system for a linked fresh air device, so that the indoor temperatures of two rooms can reach the set temperature relatively quickly and stably.

[0010] In some embodiments, a first fresh air device is provided in the first room, and a second fresh air device is provided in the second room, and there is air flow between the first room and the second room. The execution process of the control method of the linkage fresh air device is accompanied by the temperature adjustment process of the first room and the second room. The control method includes: obtaining the current first indoor temperature of the first room, the current second indoor temperature of the second room, the set temperature of the first room and the second room, and the current outdoor temperature of the outdoor environment, and the set temperature is the set temperature of the temperature adjustment device of the first room and the second room; when the current first indoor temperature is greater than the current second indoor temperature, and the current first indoor temperature is less than the current outdoor temperature and the set temperature, or when the current first indoor temperature is less than the current second indoor temperature, and the current first indoor temperature is greater than the current outdoor temperature and the set temperature, obtaining the current The current first temperature difference between the previous first indoor temperature and the set temperature, as well as the current second temperature difference between the current first indoor temperature and the current outdoor temperature; according to the correspondence between the temperature difference and the temperature promotion coefficient, determine the target temperature promotion coefficient corresponding to the current first temperature difference; the temperature promotion coefficient is used to represent the promoting effect of the temperature difference between the first indoor temperature and the outdoor temperature of the first room and the first fresh air rate of the first fresh air device on the temperature change process of the first room; according to the correspondence between the temperature difference, the fresh air rate and the temperature promotion coefficient, determine the target first fresh air rate corresponding to the current second temperature difference and the target temperature promotion coefficient; determine the target second fresh air rate according to the target first fresh air rate, so that the first pressure of the first room is greater than or equal to the second pressure of the second room; control the first fresh air device according to the target first fresh air rate, and control the second fresh air device according to the target second fresh air rate.

[0011] Optionally, determining the target second fresh air rate based on the target first fresh air rate includes: obtaining the first volume of the first room and the second volume of the second room; determining the target first pressure corresponding to the target first fresh air rate and the first volume based on the correspondence between the fresh air rate, volume and pressure; obtaining a target second pressure that is less than the target first pressure; and determining the target second fresh air rate corresponding to the second volume and the target second pressure based on the correspondence between the fresh air rate, volume and pressure.

[0012] Optionally, obtaining a target second pressure that is less than the target first pressure includes: obtaining a preset pressure difference that is negatively correlated with the current first temperature difference; and determining the target second pressure based on the difference between the target first pressure and the preset pressure difference.

[0013] Optionally, the target second pressure is determined based on the difference between the target first pressure and the preset pressure difference, including: taking the difference between the target first pressure and the preset pressure difference as the target second pressure; or, fine-tuning the difference between the target first pressure and the preset pressure difference, and taking the fine-tuned difference as the target second pressure; the fine-tuning operation is to increase or decrease.

[0014] Optionally, determining the correspondence between the temperature difference and the temperature promotion coefficient includes: obtaining a first temperature difference threshold value that is positively correlated with the accuracy value of the room's temperature control device, and determining a second temperature difference threshold value corresponding to the first temperature difference threshold value; the first temperature difference threshold value is used to represent the temperature difference between the indoor temperature of the room and the set temperature, and the second temperature difference threshold value is used to represent the temperature difference between the indoor temperature and the outdoor temperature of the room when the temperature difference between the indoor temperature of the room and the set temperature is the first temperature difference threshold value; determining a preset minimum pressure difference between indoor and outdoor, and a minimum temperature promotion coefficient corresponding to the second temperature difference threshold value; the preset minimum pressure difference corresponds to the fresh air rate of the fresh air device; obtaining a preset third temperature difference threshold value, and determining the temperature difference corresponding to the third temperature difference threshold value a fourth temperature difference threshold; the third temperature difference threshold is used to represent the temperature difference between the indoor temperature of the room and the set temperature, the third temperature difference threshold is greater than the first temperature difference threshold, and the fourth temperature difference threshold is used to represent the temperature difference between the indoor temperature and the outdoor temperature of the room when the temperature difference between the indoor temperature of the room and the set temperature is the third temperature difference threshold; determine the maximum temperature promotion coefficient corresponding to the fourth temperature difference threshold and the maximum fresh air rate of the fresh air device; establish a first mapping relationship between the first temperature difference threshold and the minimum temperature promotion coefficient; establish a second mapping relationship between the third temperature difference threshold and the maximum temperature promotion coefficient; determine the positive correlation between the temperature difference and the temperature promotion coefficient based on the first mapping relationship and the second mapping relationship.

[0015] Optionally, determining the preset minimum pressure difference between indoors and outdoors and the minimum temperature promotion coefficient corresponding to the second temperature difference threshold includes: determining the first minimum fresh air rate corresponding to the preset minimum pressure difference based on the positive correlation between the pressure difference and the fresh air rate; and determining the current second temperature difference threshold and the minimum temperature promotion coefficient corresponding to the first minimum fresh air rate based on the correspondence between the temperature difference, the fresh air rate and the temperature promotion coefficient.

[0016] Optionally, determining the fourth temperature difference threshold and the maximum temperature promotion coefficient corresponding to the maximum fresh air rate of the fresh air device includes: determining the fourth temperature difference threshold and the maximum temperature promotion coefficient corresponding to the maximum fresh air rate based on the correspondence between the temperature difference, the fresh air rate and the temperature promotion coefficient.

[0017] In some embodiments, a first fresh air device is provided in the first room, and a second fresh air device is provided in the second room. There is air flow between the first room and the second room. The operation process of the control device of the linked fresh air device is accompanied by the temperature adjustment process of the first room and the second room. The control device includes a first acquisition module, a second acquisition module, a first determination module, a second determination module, a third determination module and a control module.

[0018] The first acquisition module is used to obtain the current first indoor temperature of the first room, the current second indoor temperature of the second room, the set temperatures of the first room and the second room, and the current outdoor temperature of the outdoor environment, where the set temperatures are the set temperatures of the temperature control devices of the first room and the second room.

[0019] The second obtaining module is used to obtain the current first temperature difference between the current first indoor temperature and the set temperature, and the current second temperature difference between the current first indoor temperature and the current outdoor temperature when the current first indoor temperature is greater than the current second indoor temperature and the current first indoor temperature is less than the current outdoor temperature and the set temperature, or when the current first indoor temperature is less than the current second indoor temperature and the current first indoor temperature is greater than the current outdoor temperature and the set temperature.

[0020] The first determination module is used to determine the target temperature promotion coefficient corresponding to the current first temperature difference based on the correspondence between the temperature difference and the temperature promotion coefficient; the temperature promotion coefficient is used to represent the promoting effect of the temperature difference between the first indoor temperature and the outdoor temperature of the first room and the first fresh air rate of the first fresh air device on the temperature change process of the first room.

[0021] The second determination module is used to determine the target first fresh air rate corresponding to the current second temperature difference and the target temperature promotion coefficient according to the corresponding relationship among the temperature difference, the fresh air rate and the temperature promotion coefficient.

[0022] The third determination module is used to determine a target second fresh air rate according to the target first fresh air rate, so that the first pressure of the first room is greater than or equal to the second pressure of the second room.

[0023] The control module is used to control the first fresh air device according to the target first fresh air rate, and control the second fresh air device according to the target second fresh air rate.

[0024] In some embodiments, the control device of the linked fresh air device includes a processor and a memory storing program instructions, and the processor is configured to execute the control method of the linked fresh air device provided in the above embodiment when executing the program instructions.

[0025] In some embodiments, the smart home system includes the control device of the linked fresh air device provided in the aforementioned embodiments.

[0026] The control method, device, and smart home system of the linked fresh air device provided in the embodiments of the present application can achieve the following technical effects:

[0027] For two rooms with air flow, when both rooms are heated up or cooled down at the same time, and the air introduced from the outside into the two rooms promotes the heating or cooling process of the two rooms, the indoor temperatures of the two rooms may be in the following three situations: First situation: the temperature difference between the current first indoor temperature of the first room and the set temperature is large, and the temperature difference between the current second indoor temperature of the second room and the set temperature is large; Second situation: the temperature difference between the current first indoor temperature of the first room and the set temperature is small, and the temperature difference between the current second indoor temperature of the second room and the set temperature is large; Third situation: the temperature difference between the current first indoor temperature of the first room and the set temperature is small, and the temperature difference between the current second indoor temperature of the second room and the set temperature is small.

[0028] In the technical solution of the present application, the temperature difference between the first indoor temperature and the outdoor temperature of the first room and the interference of the fresh air rate of the first fresh air device on the indoor temperature are unified into the temperature promotion coefficient, and the current first indoor temperature and the current first temperature difference between the current indoor temperature and the set temperature are positively correlated with the target temperature promotion coefficient.

[0029] In the first case, the temperature difference between the current first indoor temperature and the set temperature is large, and the target temperature promotion coefficient is large, so more outdoor air can be introduced into the first room. The first fresh air device draws outdoor air into the first room, and part of the air in the first room seeps out to the outside through the gaps in the first room, and another part of the air in the first room flows into the second room. For the first room, more outdoor air squeezes the original air in the first room out of the first room, which can quickly reduce the temperature difference between the current first indoor temperature and the set temperature; the pressure in the first room is greater than the pressure in the second room, and the air in the first room flows into the second room. The second fresh air device also draws outdoor air into the second room, and the air in the second room seeps out to the outside through the gaps in the second room. By using the air flowing into the second room from the first room and the air sucked into the second room from the outside, the original air in the second room is squeezed out to the outside, which can make the second room warm up relatively quickly.

[0030] The second situation indicates that the current first indoor temperature is close to the set temperature and the temperature difference between the current second indoor temperature and the set temperature is large. Since the current first temperature difference is small, the target temperature promotion coefficient is small, and the air sucked into the first room from the outside by the first fresh air device has little interference with the temperature of the first room. That is, in the temperature control system composed of the temperature control device of the first room and the first room, other interferences are small, which can shorten the fluctuation time of the first indoor temperature of the first room from the first reaching the set temperature to stabilizing at the set temperature, so that the current first indoor temperature can stabilize at the set temperature relatively quickly; making the second pressure of the second room lower than the first pressure of the first room can avoid the air from the second room flowing into the first room and interfering with the temperature stabilization process of the first room. The second fresh air device in the second room can suck as much outdoor air as possible into the second room while ensuring that the second pressure is less than or equal to the first pressure, so as to promote the temperature change process of the second room, increase the temperature change speed of the second room, and shorten the temperature difference between the current second indoor temperature and the set temperature as quickly as possible.

[0031] The third situation indicates that the current first indoor temperature and the current second indoor temperature are both close to the set temperature. Since the current first temperature difference is small, the target temperature promotion coefficient is small, which can shorten the fluctuation time from the first indoor temperature of the first room first reaching the set temperature to stabilizing at the set temperature; when the target temperature promotion coefficient is small, the target first fresh air rate of the first fresh air device will not be too large, so that the second pressure of the second room is less than or equal to the pressure of the first room, and the target second fresh air rate cannot be too large either. Therefore, the air inhaled from the outside by the second fresh air device into the second room has less impact on the temperature change process of the second room, thereby shortening the fluctuation time from the second indoor temperature of the second room first reaching the set temperature to stabilizing at the set temperature, so that the current second indoor temperature stabilizes at the set temperature relatively quickly.

[0032] In summary, the technical solution provided by the embodiments of the present application can enable the indoor temperatures of the two rooms to reach the set temperature relatively quickly and stably.

[0033] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are considered similar elements, and wherein:

[0035] Figure 1 Schematic diagram of an implementation environment of a control method for a linked fresh air device provided in an embodiment of the present application;

[0036] Figure 2 This is a flow chart of a control method for a linked fresh air device provided in an embodiment of the present application;

[0037] Figure 3 is a schematic diagram of a process for determining a target second fresh air rate provided by an embodiment of the present application;

[0038] Figure 4 This is a schematic diagram of a process for determining the corresponding relationship between the temperature difference and the temperature promotion coefficient provided in an embodiment of the present application;

[0039] Figure 5 This is a schematic diagram of a control device for a linked fresh air device provided in an embodiment of the present application;

[0040] Figure 6 This is a schematic diagram of a control device for a linked fresh air device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] In order to be able to understand the features and technical contents of the embodiments of the present application in more detail, the implementation of the embodiments of the present application is described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present application. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0042] In the description and claims of the embodiments of the present application and the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate for the purposes of describing the embodiments of the present application. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0043] Unless otherwise stated, the term "plurality" means more than two.

[0044] In the embodiments of the present application, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0045] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0046] Figure 1 It is a schematic diagram of the implementation environment of a control method for a linked fresh air device provided in an embodiment of the present application.

[0047] Room R1 and room R2 can be two rooms in a home setting or two rooms in an office setting. Air flow exists between room R1 and room R2. For example, room R1 does not have a door, or room R1 has a door but the door is open, and room R1 is connected to corridor C. Room R2 does not have a door, or room R2 has a door but the door is open, and room R2 is connected to corridor C. In this state, air flow exists between room R1 and room R2.

[0048] The first fresh air device F1 is installed in the first room R1, and the second fresh air device F2 is installed in the second room R1. One end of the first fresh air device F1 is connected to the first room R1 and the other end is connected to the outside, and is used to provide outdoor air to the first room R1. The second fresh air device F2 is connected to the second room R2 at one end and the other end is connected to the outside, and is used to provide outdoor air to the second room R2.

[0049] The first room R1 is equipped with a temperature control device, such as an air conditioner; the second room R2 is equipped with a temperature control device, such as an air conditioner. During the process of adjusting the indoor temperatures of the first and second rooms to a set temperature, when the indoor temperatures of the first and second rooms first reach the set temperature, the temperatures of the two rooms do not immediately stabilize at the set temperature, but fluctuate around the set temperature before eventually stabilizing at the set temperature.

[0050] The first room R1 is also provided with a first temperature sensor T1 and a first pressure sensor P1. The first temperature sensor T1 is used to detect the first indoor temperature in the first room R1, and the first pressure sensor P1 is used to detect the first pressure in the first room R1. The second room R2 is also provided with a second temperature sensor T2 and a second pressure sensor P2. The second temperature sensor T2 is used to detect the second indoor temperature in the second room R2, and the second pressure sensor P2 is used to detect the second pressure in the second room R2.

[0051] A third temperature sensor T3 and a third pressure sensor P3 are also provided outdoors; the third temperature sensor T3 is used to detect the outdoor temperature, and the third pressure sensor P3 is used to detect the outdoor pressure.

[0052] The situation where the current first indoor temperature of the first room is greater than the current second indoor temperature of the second room, and the current first indoor temperature and the current second indoor temperature are both greater than the current outdoor temperature and the set temperature, refers to the situation where the first room and the second room are heated up at the same time, and the outdoor temperature is conducive to heating up the first room and the second room, such as at noon in late autumn and early winter, the indoor temperature is low and the outdoor temperature is higher than the indoor temperature; the situation where the current first indoor temperature of the first room is less than the current second indoor temperature of the second room, and the current first indoor temperature and the current second indoor temperature are both less than the current outdoor temperature and the set temperature, refers to the situation where the first room and the second room are cooled down at the same time, and the outdoor temperature is conducive to cooling down the first room and the second room, such as rooms such as kitchens and bathrooms, after they are used, the indoor temperature is high, and the outdoor temperature is lower than the high indoor temperature. The above two situations are suitable for adopting the control method of the linkage fresh air device provided in the embodiments of the present application.

[0053] In an embodiment of the present application, based on the correspondence between the temperature difference and the temperature promotion coefficient, the target temperature promotion coefficient is determined according to the current first indoor temperature of the first room and the current first temperature difference of the set temperature, and the temperature interference of the air entering the first room from the outside on the first room is controlled within the expected range. The first fresh air rate of the first fresh air device in the first room is determined according to the temperature promotion coefficient, and when determining the second fresh air rate of the second fresh air device in the second room, the second pressure of the second room is made lower than the first pressure of the first room. In this way, the influence of the air flowing from the outside to the second room on the temperature adjustment process of the second room, and the influence of the air flowing from the first room to the second room on the temperature adjustment process of the second room are both conducive to the current second indoor temperature of the second room reaching the set temperature relatively quickly and stabilizing at the set temperature relatively quickly.

[0054] Figure 2This is a flow chart illustrating a method for controlling a linked fresh air device, provided in an embodiment of the present application. This method can be executed by a server in a smart home system or by a controller in the fresh air device. In the implementation environment of this method, a first fresh air device is installed in a first room, a second fresh air device is installed in a second room, air flow occurs between the first and second rooms, and the execution of this method is accompanied by temperature adjustment in the first and second rooms.

[0055] Combine Figure 2 As shown, the control method of the linkage fresh air device includes:

[0056] S201: Obtain a current first indoor temperature of a first room, a current second indoor temperature of a second room, set temperatures of the first room and the second room, and a current outdoor temperature of an outdoor environment.

[0057] The set temperature is the set temperature of the temperature control device for the first and second rooms. The execution of this linked fresh air device control method is accompanied by the temperature adjustment process of the first and second rooms by the temperature control device. This temperature adjustment process refers to the process of adjusting the temperature of the first room from the current first indoor temperature to the set temperature, and the process of adjusting the temperature of the second room from the current second indoor temperature to the set temperature. The control algorithm for the temperature adjustment process can be a proportional-integral-derivative (PID) control algorithm or a linear quadratic regulator (LQR) control algorithm.

[0058] The current first indoor temperature can be obtained through the first temperature sensor in the first room. The first temperature sensor can be set independently and can be set on the first fresh air device. When the first fresh air device and the air conditioner are independent devices, the first temperature sensor can also be set on the air conditioner.

[0059] The current second indoor temperature can be obtained through the second temperature sensor in the second room. The second temperature sensor can be set independently and can be set on the second fresh air device. When the second fresh air device and the air conditioner are independent devices, the second temperature sensor can also be set on the air conditioner.

[0060] The current outdoor temperature of the outdoor environment may be obtained through a third temperature sensor disposed outdoors.

[0061] The set temperature can be set by the user, or it can be recommended using an existing healthy temperature recommendation algorithm. By setting the same set temperature for the first and second rooms, the user's perception of hot and cold temperatures when moving between the first and second rooms is reduced, improving their thermal comfort experience.

[0062] In the case of heating, the temperature regulating device may be an air conditioner, an electric heater, an electric hot air heater or other heating equipment.

[0063] In the case of cooling, the temperature regulating device may be an air conditioner.

[0064] Furthermore, the air conditioner in the embodiment of the present application may be a multi-split air conditioner, a split air conditioner or a central air conditioner. A multi-split air conditioner refers to a system in which one outdoor unit corresponds to multiple indoor units, and a split air conditioner refers to a system in which one outdoor unit corresponds to one indoor unit.

[0065] S202. When the current first indoor temperature is greater than the current second indoor temperature and the current first indoor temperature is less than the current outdoor temperature and the set temperature, or when the current first indoor temperature is less than the current second indoor temperature and the current first indoor temperature is greater than the current outdoor temperature and the set temperature, obtain the current first temperature difference between the current first indoor temperature and the set temperature, and the current second temperature difference between the current first indoor temperature and the current outdoor temperature.

[0066] When the current first indoor temperature is greater than the current second indoor temperature, and the current first indoor temperature is lower than the current outdoor temperature and the set temperature, the first fresh air device in the first room inhales air (fresh air) from the outside into the first room, which has a promoting effect on the temperature change process of the first room, and the second fresh air device in the second room inhales air (fresh air) from the outside into the second room, which has a promoting effect on the temperature change process of the second room. In addition, the air flowing from the first room to the second room has a promoting effect on the temperature change process of the second room.

[0067] In addition, when the current first indoor temperature is lower than the current second indoor temperature, and the current first indoor temperature is higher than the current outdoor temperature and the set temperature, the air inhaled from the outside into the first room by the first fresh air device has a promoting effect on the temperature change process of the first room, and the air inhaled from the outside into the second room by the second fresh air device has a promoting effect on the temperature change process of the second room, and the air flowing from the first room to the second room has a promoting effect on the temperature change process of the second room.

[0068] In the case where the current first indoor temperature is greater than the current second indoor temperature, and the current first indoor temperature is less than the current outdoor temperature and the set temperature, the current outdoor temperature may be greater than the set temperature, or the current outdoor temperature may be less than or equal to the set temperature. If the current outdoor temperature is greater than the set temperature, the control method for the linked fresh air device provided in the embodiment of the present application may be continuously executed until the indoor temperatures of the first room and the second room are both stabilized at the set temperature. If the current outdoor temperature is less than or equal to the set temperature, the control method for the linked fresh air device provided in the embodiment of the present application may be continuously executed until the current first indoor temperature is greater than or equal to the current outdoor temperature.

[0069] In addition, in the case where the current first indoor temperature is lower than the current second indoor temperature, and the current first indoor temperature is higher than the current outdoor temperature and the set temperature, the current outdoor temperature may be lower than the set temperature, or the current outdoor temperature may be higher than or equal to the set temperature. If the current outdoor temperature is lower than the set temperature, the control method for the linkage fresh air device provided in the embodiment of the present application may be continuously executed until the indoor temperatures of the first room and the second room are both stabilized at the set temperature. If the current outdoor temperature is higher than or equal to the set temperature, the control method for the linkage fresh air device provided in the embodiment of the present application may be continuously executed until the current first indoor temperature is lower than or equal to the current outdoor temperature.

[0070] S203 : Determine a target temperature promotion coefficient corresponding to the current first temperature difference according to the corresponding relationship between the temperature difference and the temperature promotion coefficient.

[0071] The temperature promotion coefficient is used to represent the promoting effect of the temperature difference between the first indoor temperature and the outdoor temperature of the first room and the first fresh air rate of the first fresh air device on the temperature change process of the first room.

[0072] The temperature promotion coefficient can be: the temperature change of the first room caused by the air introduced from the outside into the first room per unit time; or, the heat or cold carried by the air introduced from the outside into the first room per unit time relative to the current first indoor temperature.

[0073] The heat carried by the air introduced from the outdoors into the first room per unit time relative to the current first indoor temperature specifically refers to: the heat that can be released when the air introduced from the outdoors into the first room is cooled to the current first indoor temperature per unit time; the cooling capacity carried by the air introduced from the outdoors into the first room per unit time relative to the current first indoor temperature specifically refers to: the heat that needs to be absorbed when the air introduced from the outdoors into the first room is heated to the current indoor temperature per unit time.

[0074] The positive correlation between the temperature difference and the temperature promotion coefficient can be stored in the database in the form of a one-to-one correspondence data table. After obtaining the current first temperature difference, the target temperature promotion coefficient corresponding to the current first temperature difference can be obtained by querying the database.

[0075] Alternatively, the positive correlation between the temperature difference and the temperature promotion coefficient can be pre-stored in the form of a formula. After obtaining the current first temperature difference, the current first temperature difference is substituted into the pre-stored formula to obtain the target temperature promotion coefficient corresponding to the current first temperature difference.

[0076] S204: Determine a target first fresh air rate corresponding to the current second temperature difference and the target temperature promotion coefficient according to the corresponding relationship among the temperature difference, the fresh air rate, and the temperature promotion coefficient.

[0077] The fresh air rate is negatively correlated with the temperature difference. When the temperature promotion coefficient remains unchanged, the greater the temperature difference, the smaller the fresh air rate, and the smaller the temperature difference, the greater the fresh air rate; the fresh air rate is positively correlated with the temperature promotion coefficient. When the temperature difference remains unchanged, the greater the temperature promotion coefficient, the greater the fresh air rate, and the smaller the temperature promotion coefficient, the smaller the fresh air rate; the temperature difference is positively correlated with the temperature promotion coefficient. When the fresh air rate remains unchanged, the greater the temperature promotion coefficient, the greater the temperature difference, and the smaller the temperature promotion coefficient, the smaller the temperature difference.

[0078] The correspondence between the temperature difference, the fresh air rate and the temperature promotion coefficient can be stored in the database in the form of a one-to-one correspondence data table. After obtaining the current second temperature difference and the target temperature promotion coefficient, the target first fresh air rate corresponding to the current second temperature difference and the target temperature promotion coefficient can be obtained by querying the database.

[0079] Alternatively, the correspondence between the temperature difference, the fresh air rate and the temperature promotion coefficient can be stored in a database in the form of a one-to-one correspondence data table. After obtaining the current second temperature difference and the target temperature promotion coefficient, the current second temperature difference and the target temperature promotion coefficient are substituted into the pre-stored formula to obtain the target first fresh air rate corresponding to the current second temperature difference and the target temperature promotion coefficient.

[0080] S205. Determine a target second fresh air rate according to the target first fresh air rate, so that the first pressure in the first room is greater than or equal to the second pressure in the second room.

[0081] The first pressure in the first room has a first positive correlation with the first fresh air rate of the first fresh air device. After determining the target first fresh air rate, the target first pressure corresponding to the target first fresh air rate can be determined based on the first positive correlation. The second pressure in the second room has a second positive correlation with the second fresh air rate of the second fresh air device. A pressure value that is less than the target first pressure is taken as the target second pressure, and then the target second fresh air rate corresponding to the target second pressure is determined based on the second positive correlation. In the process of determining the target second pressure, the target second pressure needs to be greater than the outdoor pressure so that the second room can maintain a slightly positive pressure relative to the outdoor environment. Those skilled in the art can determine, based on experience, a target second pressure that is less than the target first pressure and meets the slightly positive pressure condition.

[0082] S206: Control the first fresh air device according to the target first fresh air rate, and control the second fresh air device according to the target second fresh air rate.

[0083] The fresh air rate includes but is not limited to the following expressions: the fan speed of the fresh air device, the fan current of the fresh air device, and the flow speed of the air in the fresh air device.

[0084] Controlling the first fresh air device according to the target first fresh air rate means: when the fan speed is used to represent the fresh air rate, the first fresh air device is operated at the target first fan speed corresponding to the target first fresh air rate; when the fan current is used to represent the fresh air rate, after the first fresh air device is operated, the fan current passing through the first fresh air device is made to be the target first fan current corresponding to the target first fresh air rate; when the air flow speed is used to represent the fresh air rate, after the first fresh air device is operated, the air flow speed passing through the first fresh air device is made to be the target first air flow speed corresponding to the target first fresh air rate.

[0085] Controlling the second fresh air device according to the target second fresh air rate means: when the fan speed is used to represent the fresh air rate, the second fresh air device is operated at the target second fan speed corresponding to the target second fresh air rate; when the fan current is used to represent the fresh air rate, after the second fresh air device is operated, the fan current passing through the second fresh air device is made to be the target second fan current corresponding to the target second fresh air rate; when the air flow speed is used to represent the fresh air rate, after the second fresh air device is operated, the air flow speed passing through the second fresh air device is made to be the target second air flow speed corresponding to the target second fresh air rate.

[0086] For two rooms with air flow, when both rooms are heated up or cooled down at the same time, and the air introduced from the outside into the two rooms promotes the heating or cooling process of the two rooms, the indoor temperatures of the two rooms may be in the following three situations: First situation: the temperature difference between the current first indoor temperature of the first room and the set temperature is large, and the temperature difference between the current second indoor temperature of the second room and the set temperature is large; Second situation: the temperature difference between the current first indoor temperature of the first room and the set temperature is small, and the temperature difference between the current second indoor temperature of the second room and the set temperature is large; Third situation: the temperature difference between the current first indoor temperature of the first room and the set temperature is small, and the temperature difference between the current second indoor temperature of the second room and the set temperature is small.

[0087] In the technical solution of the present application, the temperature difference between the first indoor temperature and the outdoor temperature of the first room and the interference of the fresh air rate of the first fresh air device on the indoor temperature are unified into the temperature promotion coefficient, and the current first indoor temperature and the current first temperature difference between the current indoor temperature and the set temperature are positively correlated with the target temperature promotion coefficient.

[0088] In the first case, the temperature difference between the current first indoor temperature and the set temperature is large, and the target temperature promotion coefficient is large, so more outdoor air can be introduced into the first room. The first fresh air device draws outdoor air into the first room, and part of the air in the first room seeps out to the outside through the gaps in the first room, and another part of the air in the first room flows into the second room. For the first room, more outdoor air squeezes the original air in the first room out of the first room, which can quickly reduce the temperature difference between the current first indoor temperature and the set temperature; the pressure in the first room is greater than the pressure in the second room, and the air in the first room flows into the second room. The second fresh air device also draws outdoor air into the second room, and the air in the second room seeps out to the outside through the gaps in the second room. By using the air flowing into the second room from the first room and the air sucked into the second room from the outside, the original air in the second room is squeezed out to the outside, which can make the second room warm up relatively quickly.

[0089] The second situation indicates that the current first indoor temperature is close to the set temperature and the temperature difference between the current second indoor temperature and the set temperature is large. Since the current first temperature difference is small, the target temperature promotion coefficient is small, and the air sucked into the first room from the outside by the first fresh air device has little interference with the temperature of the first room. That is, in the temperature control system composed of the temperature control device of the first room and the first room, other interferences are small, which can shorten the fluctuation time of the first indoor temperature of the first room from the first reaching the set temperature to stabilizing at the set temperature, so that the current first indoor temperature can stabilize at the set temperature relatively quickly; making the second pressure of the second room lower than the first pressure of the first room can avoid the air from the second room flowing into the first room and interfering with the temperature stabilization process of the first room. The second fresh air device in the second room can suck as much outdoor air as possible into the second room while ensuring that the second pressure is less than or equal to the first pressure, so as to promote the temperature change process of the second room, increase the temperature change speed of the second room, and shorten the temperature difference between the current second indoor temperature and the set temperature as quickly as possible.

[0090] The third situation indicates that the current first indoor temperature and the current second indoor temperature are both close to the set temperature. Since the current first temperature difference is small, the target temperature promotion coefficient is small, which can shorten the fluctuation time from the first indoor temperature of the first room first reaching the set temperature to stabilizing at the set temperature; when the target temperature promotion coefficient is small, the target first fresh air rate of the first fresh air device will not be too large, so that the second pressure of the second room is less than or equal to the pressure of the first room, and the target second fresh air rate cannot be too large either. Therefore, the air inhaled from the outside by the second fresh air device into the second room has less impact on the temperature change process of the second room, thereby shortening the fluctuation time from the second indoor temperature of the second room first reaching the set temperature to stabilizing at the set temperature, so that the current second indoor temperature stabilizes at the set temperature relatively quickly.

[0091] In summary, the technical solution provided by the embodiments of the present application can enable the indoor temperatures of the two rooms to reach the set temperature relatively quickly and stably.

[0092] Figure 3 This is a schematic diagram of a process for determining a target second fresh air rate provided in an embodiment of the present application.

[0093] Combine Figure 3 As shown, determining the target second fresh air rate according to the target first fresh air rate includes:

[0094] S301: Obtain a first volume of a first room and a second volume of a second room.

[0095] S302: Determine a target first fresh air rate and a target first pressure corresponding to the first volume according to a correspondence among the fresh air rate, volume, and pressure.

[0096] When the fresh air rate remains unchanged, the volume and pressure have a negative correlation: the larger the volume, the smaller the pressure, and the smaller the volume, the greater the pressure; when the volume remains unchanged, the fresh air rate and pressure have a positive correlation: the larger the fresh air rate, the greater the pressure, and the smaller the fresh air rate, the smaller the pressure; when the pressure remains unchanged, the fresh air rate and volume have a positive correlation: the larger the volume, the greater the fresh air rate, and the smaller the volume, the smaller the fresh air rate.

[0097] The correspondence between the fresh air rate, volume and pressure can be stored in the database in the form of a one-to-one correspondence data table. After obtaining the target first fresh air rate and the first volume, the target first pressure corresponding to the target first fresh air rate and the first volume can be obtained by querying the database.

[0098] Alternatively, the correspondence between the fresh air rate, volume and pressure can be pre-stored in the form of a formula. After obtaining the target first fresh air rate and first volume, the target first fresh air rate and first volume are substituted into the formula to obtain the target first pressure corresponding to the target first fresh air rate and first volume.

[0099] S303: Obtain a target second pressure that is smaller than the target first pressure.

[0100] The target second pressure is greater than the outdoor pressure, so that the second room maintains a slightly positive pressure relative to the outdoor environment.

[0101] Specifically, obtaining a target second pressure that is less than the target first pressure may include: obtaining a preset pressure difference that is negatively correlated with the current first temperature difference; and determining the target second pressure based on the difference between the target first pressure and the preset pressure difference.

[0102] Further, determining the target second pressure according to the difference between the target first pressure and the preset pressure difference may include: using the difference between the target first pressure and the preset pressure difference as the target second pressure.

[0103] Alternatively, determining the target second pressure based on the difference between the target first pressure and the preset pressure difference may include: fine-tuning the difference between the target first pressure and the preset pressure difference, and using the fine-tuned difference as the target second pressure; the fine-tuning operation is to increase or decrease.

[0104] S304: Determine a target second fresh air rate corresponding to the second volume and the target second pressure according to the correspondence between the fresh air rate, volume, and pressure.

[0105] The correspondence between the fresh air rate, volume and pressure can be stored in the database in the form of a one-to-one correspondence data table. After obtaining the second volume and the target second pressure, the target second fresh air rate corresponding to the second volume and the target second pressure can be obtained by querying the database.

[0106] Alternatively, the correspondence between the fresh air rate, volume and pressure can be pre-stored in the form of a formula. After obtaining the second volume and the target second pressure, the second volume and the target second pressure are substituted into the formula to obtain the target second fresh air rate corresponding to the second volume and the target second pressure.

[0107] In the first scenario, the temperature difference between the current first indoor temperature of the first room and the set temperature is large, and the temperature difference between the current second indoor temperature of the second room and the set temperature is large. The large current first temperature difference leads to a large target temperature promotion coefficient, a large target first fresh air rate, and a large target first pressure for the first room. Meanwhile, the preset pressure difference, which is negatively correlated with the first temperature difference, is small. Consequently, the target second pressure and target second fresh air rate for the second room are large, which facilitates rapid temperature changes in the first and second rooms.

[0108] In the second scenario, the temperature difference between the first room's current first indoor temperature and the set temperature is small, while the temperature difference between the second room's current second indoor temperature and the set temperature is large. The small current first temperature difference, the small target temperature promotion coefficient, the small target first fresh air rate, and the small target first pressure for the first room. In this case, a small preset pressure difference can, on the one hand, prevent temperature disturbances caused by air flowing from the second room into the first room, helping the first room's temperature to stabilize more quickly at the set temperature. On the other hand, a small preset pressure difference can enable the second fresh air device in the second room to draw as much outdoor air as possible into the second room, accelerating the temperature change process in the second room without affecting the first room.

[0109] For the third case: the temperature difference between the current first indoor temperature of the first room and the set temperature is small, and the temperature difference between the current second indoor temperature of the second room and the set temperature is small. The current first temperature difference is small, the target temperature promotion coefficient is small, the target first fresh air rate is small, and the target first pressure of the first room is small. In this case, increasing the preset pressure difference can make the target second pressure even smaller, so that the second fresh air device draws less outdoor air into the second room. At the same time, a large preset pressure difference can increase the proportion of air flowing from the first room into the second room in the total air flow that maintains the pressure of the second room (the total air flow that maintains a positive pressure in the second room relative to the outdoor environment includes air drawn from the outdoor into the second room and air flowing from the first room into the second room). When the current first indoor temperature is greater than the current second indoor temperature, the current first indoor temperature is less than the set temperature, and the set temperature is the current outdoor temperature; or when the current first indoor temperature is less than the current second indoor temperature, the current first indoor temperature is greater than the set temperature, and the set temperature is greater than the current outdoor temperature, the proportion of air flowing from the first room into the second room in the total air flow that maintains the pressure of the second room is high, which can reduce the promoting effect of outdoor air on the temperature change process of the second room, and is conducive to stabilizing the current second indoor temperature of the second room at the set temperature within a shorter fluctuation period.

[0110] Figure 4 This is a schematic diagram of a process for determining the corresponding relationship between the temperature difference and the temperature promotion coefficient provided in an embodiment of the present application.

[0111] Combine Figure 4 As shown in FIG, the corresponding relationship between the temperature difference and the temperature promotion coefficient is determined, including:

[0112] S401: Obtain a first temperature difference threshold value that is positively correlated with the accuracy value of a room temperature adjustment device, and determine a second temperature difference threshold value corresponding to the first temperature difference threshold value.

[0113] The first temperature difference threshold is used to represent the temperature difference between the indoor temperature of the room and the set temperature, and the second temperature difference threshold is used to represent the temperature difference between the indoor temperature of the room and the outdoor temperature when the temperature difference between the indoor temperature of the room and the set temperature is the first temperature difference threshold. The second temperature difference threshold is related to the outdoor temperature. When the first temperature difference threshold remains unchanged, the second temperature difference threshold will also be different if the outdoor temperature is different. Each time the control method of the fresh air device provided in the embodiment of the present application is executed, the second temperature difference threshold can be recalculated according to the current outdoor temperature.

[0114] Generally, the higher the accuracy of a thermostat, the smaller its precision value. For example, if the accuracy of the first thermostat is ±1°C and the accuracy of the second thermostat is ±0.5°C, then the accuracy of the second thermostat is higher than that of the first. The accuracy value of the first thermostat is 1, and the accuracy value of the second thermostat is 0.5.

[0115] In this step, when the indoor temperature is lower than the set temperature, when the temperature difference between the indoor temperature and the set temperature is the first temperature difference threshold, the indoor temperature is still lower than the outdoor temperature; wherein, the relationship between the set temperature and the outdoor temperature is not specifically limited.

[0116] When the indoor temperature is greater than the set temperature, when the temperature difference between the indoor temperature and the set temperature is a first temperature difference threshold, the indoor temperature is still greater than the outdoor temperature; wherein the relationship between the set temperature and the outdoor temperature is not specifically limited.

[0117] S402: Determine a minimum temperature promotion coefficient corresponding to a preset minimum pressure difference between indoors and outdoors and a second temperature difference threshold.

[0118] When supplying fresh air from the outdoors to improve indoor air freshness, the outdoor pressure is typically kept lower than the indoor pressure. The outdoor air is drawn into the room by the fresh air device. Because the indoor pressure is higher than the outdoor pressure, the indoor air leaks out through the room's gaps. Based on this, those skilled in the art can set a preset minimum pressure difference between indoor and outdoor based on experience to meet actual needs.

[0119] The preset minimum pressure difference corresponds to the fresh air rate of the fresh air device. After the preset minimum pressure difference is determined, the fresh air rate corresponding to the preset minimum pressure difference can be determined.

[0120] The minimum temperature promotion coefficient has a positive correlation with the fresh air rate corresponding to the preset minimum pressure difference. Since the fresh air rate has a positive correlation with the preset minimum pressure difference, the minimum temperature promotion coefficient also has a positive correlation with the preset minimum pressure difference; the minimum temperature promotion coefficient has a positive correlation with the second temperature difference threshold.

[0121] Furthermore, determining the minimum temperature promotion coefficient corresponding to the preset minimum pressure difference and the second temperature difference threshold between indoors and outdoors may include: determining the first minimum fresh air rate corresponding to the preset minimum pressure difference based on the positive correlation between the pressure difference and the fresh air rate; and determining the minimum temperature promotion coefficient corresponding to the current second temperature difference threshold and the first minimum fresh air rate based on the correspondence between the temperature difference, the fresh air rate and the temperature promotion coefficient.

[0122] S403: Obtain a preset third temperature difference threshold, and determine a fourth temperature difference threshold corresponding to the third temperature difference threshold.

[0123] The third temperature difference threshold is used to represent the temperature difference between the indoor temperature of the room and the set temperature. The third temperature difference threshold is greater than the first temperature difference threshold. The fourth temperature difference threshold is used to represent the temperature difference between the indoor temperature of the room and the outdoor temperature when the temperature difference between the indoor temperature of the room and the set temperature is the third temperature difference threshold. When the third temperature difference threshold remains unchanged, the fourth temperature difference threshold is different for different outdoor temperatures. Each time the control method for the fresh air device provided in the embodiment of the present application is executed, the fourth temperature difference threshold can be recalculated based on the current outdoor temperature.

[0124] S404: Determine a fourth temperature difference threshold and a maximum temperature promotion coefficient corresponding to a maximum fresh air rate of the fresh air device.

[0125] The maximum temperature promotion coefficient has a positive correlation with the fourth temperature difference threshold, and the maximum temperature promotion coefficient has a positive correlation with the maximum fresh air rate of the fresh air device.

[0126] Furthermore, the maximum temperature promotion coefficient corresponding to the fourth temperature difference threshold and the maximum fresh air rate of the fresh air device can be determined in the following manner: based on the correspondence between the temperature difference, the fresh air rate and the temperature promotion coefficient, the maximum temperature promotion coefficient corresponding to the fourth temperature difference threshold and the maximum fresh air rate is determined.

[0127] S405: Establish a first mapping relationship between a first temperature difference threshold and a minimum temperature promotion coefficient.

[0128] S406: Establish a second mapping relationship between the third temperature difference threshold and the maximum temperature promotion coefficient.

[0129] S407 : Determine a positive correlation between the temperature difference and the temperature promotion coefficient according to the first mapping relationship and the second mapping relationship.

[0130] For example, a formula is fitted to the relationship between the temperature difference and the promotion coefficient based on the first mapping relationship and the second mapping relationship to obtain a positive correlation between the temperature difference and the promotion coefficient. Alternatively, a neural network is used to learn sample data containing the first mapping relationship and the second mapping relationship so that the neural network can output a temperature promotion coefficient corresponding to the temperature difference.

[0131] Specifically, in determining the positive correlation between the temperature difference and the temperature promotion coefficient, in addition to the first mapping relationship and the second mapping relationship, those skilled in the art may also take the temperature difference between the first temperature difference threshold and the third temperature difference threshold, as well as other temperature promotion coefficients between the minimum temperature promotion coefficient and the maximum temperature promotion coefficient, to form an additional mapping relationship, and use this additional mapping relationship to determine the positive correlation between the temperature difference and the temperature promotion coefficient.

[0132] Figure 5 This is a schematic diagram of a control device for a linked fresh air device provided in an embodiment of the present application. This control device for a linked fresh air device can be implemented in software, hardware, or a combination of both. A first fresh air device is installed in a first room, and a second fresh air device is installed in a second room. Air flows between the first and second rooms, and the operation of the control device coincides with the temperature adjustment process in the first and second rooms.

[0133] Combine Figure 5 As shown, the control device of the linked fresh air device includes a first obtaining module 51 , a second obtaining module 52 , a first determining module 53 , a second determining module 54 , a third determining module 55 and a control module 56 .

[0134] The first obtaining module 51 is used to obtain the current first indoor temperature of the first room, the current second indoor temperature of the second room, the set temperatures of the first room and the second room, and the current outdoor temperature of the outdoor environment, where the set temperatures are the set temperatures of the temperature regulating devices of the first room and the second room.

[0135] The second obtaining module 52 is used to obtain the current first temperature difference between the current first indoor temperature and the set temperature, and the current second temperature difference between the current first indoor temperature and the current outdoor temperature when the current first indoor temperature is greater than the current second indoor temperature and the current first indoor temperature is less than the current outdoor temperature and the set temperature, or when the current first indoor temperature is less than the current second indoor temperature and the current first indoor temperature is greater than the current outdoor temperature and the set temperature.

[0136] The first determination module 53 is used to determine the target temperature promotion coefficient corresponding to the current first temperature difference based on the correspondence between the temperature difference and the temperature promotion coefficient; the temperature promotion coefficient is used to represent the promoting effect of the temperature difference between the first indoor temperature and the outdoor temperature of the first room and the first fresh air rate of the first fresh air device on the temperature change process of the first room.

[0137] The second determining module 54 is configured to determine a target first fresh air rate corresponding to the current second temperature difference and the target temperature promotion coefficient according to a correspondence among the temperature difference, the fresh air rate, and the temperature promotion coefficient.

[0138] The third determining module 55 is configured to determine a target second fresh air rate according to the target first fresh air rate, so that the first pressure of the first room is greater than or equal to the second pressure of the second room.

[0139] The control module 56 is used to control the first fresh air device according to the target first fresh air rate, and control the second fresh air device according to the target second fresh air rate.

[0140] Optionally, the third determining module 55 includes a first obtaining unit, a first determining unit, a second obtaining unit, and a second determining unit.

[0141] The first obtaining unit is used to obtain a first volume of the first room and a second volume of the second room.

[0142] The first determining unit is used to determine the target first fresh air rate and the target first pressure corresponding to the first volume according to the corresponding relationship among the fresh air rate, volume and pressure.

[0143] The second obtaining unit is configured to obtain a target second pressure that is smaller than the target first pressure.

[0144] The second determining unit is used to determine a target second fresh air rate corresponding to the second volume and the target second pressure according to a correspondence between the fresh air rate, volume, and pressure.

[0145] Optionally, the second obtaining unit is specifically configured to obtain a preset pressure difference value that is negatively correlated with the current first temperature difference value; and determine the target second pressure according to a difference between the target first pressure and the preset pressure difference value.

[0146] Optionally, the target second pressure is determined based on the difference between the target first pressure and the preset pressure difference, including: taking the difference between the target first pressure and the preset pressure difference as the target second pressure; or, fine-tuning the difference between the target first pressure and the preset pressure difference, and taking the fine-tuned difference as the target second pressure; the fine-tuning operation is to increase or decrease.

[0147] Optionally, determining the corresponding relationship between the temperature difference and the temperature promotion coefficient includes:

[0148] Obtaining a first temperature difference threshold value that is positively correlated with the accuracy value of the room's temperature control device, and determining a second temperature difference threshold value corresponding to the first temperature difference threshold value; the first temperature difference threshold value is used to represent the temperature difference between the room's indoor temperature and the set temperature, and the second temperature difference threshold value is used to represent the temperature difference between the room's indoor temperature and the outdoor temperature when the temperature difference between the room's indoor temperature and the set temperature is the first temperature difference threshold value;

[0149] Determine a minimum temperature promotion coefficient corresponding to a preset minimum pressure difference between indoors and outdoors and a second temperature difference threshold; the preset minimum pressure difference corresponds to a fresh air rate of the fresh air device;

[0150] Obtaining a preset third temperature difference threshold and determining a fourth temperature difference threshold corresponding to the third temperature difference threshold; the third temperature difference threshold is used to represent the temperature difference between the indoor temperature of the room and the set temperature, the third temperature difference threshold is greater than the first temperature difference threshold, and the fourth temperature difference threshold is used to represent the temperature difference between the indoor temperature of the room and the outdoor temperature when the temperature difference between the indoor temperature of the room and the set temperature is the third temperature difference threshold;

[0151] Determine a maximum temperature promotion coefficient corresponding to a fourth temperature difference threshold and a maximum fresh air rate of the fresh air device;

[0152] Establishing a first mapping relationship between a first temperature difference threshold and a minimum temperature promotion coefficient;

[0153] establishing a second mapping relationship between a third temperature difference threshold and a maximum temperature promotion coefficient;

[0154] According to the first mapping relationship and the second mapping relationship, a positive correlation between the temperature difference and the temperature promotion coefficient is determined.

[0155] Optionally, the minimum temperature promotion coefficient corresponding to the preset minimum pressure difference and the second temperature difference threshold between indoors and outdoors is determined, including: determining the first minimum fresh air rate corresponding to the preset minimum pressure difference based on the positive correlation between the pressure difference and the fresh air rate; and determining the minimum temperature promotion coefficient corresponding to the current second temperature difference threshold and the first minimum fresh air rate based on the correspondence between the temperature difference, the fresh air rate and the temperature promotion coefficient.

[0156] Optionally, determining the maximum temperature promotion coefficient corresponding to the fourth temperature difference threshold and the maximum fresh air rate of the fresh air device includes: determining the maximum temperature promotion coefficient corresponding to the fourth temperature difference threshold and the maximum fresh air rate based on the correspondence between the temperature difference, the fresh air rate and the temperature promotion coefficient.

[0157] In some embodiments, the control device of the linked fresh air device includes a processor and a memory storing program instructions, and the processor is configured to execute the control method of the linked fresh air device provided in the above embodiments when executing the program instructions.

[0158] Figure 6 This is a schematic diagram of a control device for a linked fresh air device provided in an embodiment of the present application. Figure 6 As shown, the control device of the linkage fresh air device includes:

[0159] Processor 61 and memory 62 may also include a communication interface 63 and a bus 64. Processor 61, communication interface 63, and memory 62 may communicate with each other via bus 64. Communication interface 63 may be used for information transmission. Processor 61 may invoke logic instructions in memory 62 to execute the control method for the linked fresh air device provided in the aforementioned embodiment.

[0160] In addition, the logic instructions in the memory 62 can be implemented in the form of software functional units and stored in a computer-readable storage medium when sold or used as an independent product.

[0161] Memory 62, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of the present application. Processor 61 executes the software programs, instructions, and modules stored in memory 62 to perform functional applications and data processing, thereby implementing the methods in the above-mentioned method embodiments.

[0162] The memory 62 may include a program storage area and a data storage area. The program storage area may store an operating system and at least one application required for a function; the data storage area may store data generated based on the use of the terminal device. Furthermore, the memory 62 may include high-speed random access memory and non-volatile memory.

[0163] An embodiment of the present application provides a smart home system, comprising a control device for the linked fresh air device provided in the aforementioned embodiment.

[0164] An embodiment of the present application provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the control method for the linked fresh air device provided in the aforementioned embodiment.

[0165] An embodiment of the present application provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the computer executes the control method of the linked fresh air device provided in the aforementioned embodiment.

[0166] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0167] The technical solutions of the embodiments of the present application can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method of the embodiments of the present application. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc., which can store program code, or a transient storage medium.

[0168] The above description and accompanying drawings sufficiently illustrate the embodiments of the present application to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for portions and features of other embodiments. Furthermore, the terms used in this application are intended only to describe the embodiments and are not intended to limit the claims. As used in the embodiments and claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. Furthermore, when used in this application, the terms "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. In the absence of further limitations, the phrase "comprising a..." does not preclude the presence of other identical elements in the process, method, or apparatus comprising the elements. In this document, each embodiment may focus on the differences from other embodiments, and similar portions between the embodiments may refer to each other. For methods, products, etc. disclosed in the embodiments, if they correspond to the method portion disclosed in the embodiments, the relevant portions may refer to the description of the method portion.

[0169] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. Technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the embodiments of the present application. Technicians can clearly understand that for the convenience and brevity of description, the specific working process of the above-described systems, devices and units can refer to the corresponding process in the aforementioned method embodiment and will not be repeated here.

[0170] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units may be merely a logical functional division. In actual implementation, other division methods may be used, such as multiple units or components being combined or integrated into another system, or some features being ignored or not implemented. In addition, the coupling or direct coupling or communication connection shown or discussed between each other may be through some interface, indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to implement the present embodiments according to actual needs. In addition, the functional units in the embodiments of the present application may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit.

[0171] The flow charts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the system, method and computer program product according to the embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a part of a module, program segment or code, and a part of a module, program segment or code comprises one or more executable instructions for realizing the logical function of the specification. In some alternative implementations, the functions marked in the box can also occur in a sequence different from that marked in the accompanying drawings. For example, two continuous boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a special hardware-based system that performs the function or action of the specification, or can be implemented by a combination of special hardware and computer instructions.

Claims

1. A control method for a linked fresh air device, characterized in that: A first fresh air device is provided in a first room, and a second fresh air device is provided in a second room. Air flow exists between the first room and the second room. The execution process of the control method is accompanied by a temperature adjustment process of the first room and the second room. The control method includes: Obtaining a current first indoor temperature of the first room, a current second indoor temperature of the second room, set temperatures of the first room and the second room, and a current outdoor temperature of the outdoor environment, where the set temperatures are set temperatures of temperature adjustment devices of the first room and the second room; When the current first indoor temperature is greater than the current second indoor temperature and is less than the current outdoor temperature and the set temperature, or when the current first indoor temperature is less than the current second indoor temperature and is greater than the current outdoor temperature and the set temperature, obtaining a current first temperature difference between the current first indoor temperature and the set temperature, and a current second temperature difference between the current first indoor temperature and the current outdoor temperature; determining a target temperature promotion coefficient corresponding to the current first temperature difference based on a correspondence between the temperature difference and the temperature promotion coefficient; the temperature promotion coefficient is used to represent the effect of the temperature difference between the first indoor temperature and the outdoor temperature of the first room and the first fresh air rate of the first fresh air device on the temperature change process of the first room; Determining a target first fresh air rate corresponding to the current second temperature difference and the target temperature promotion coefficient according to a correspondence between the temperature difference, the fresh air rate, and the temperature promotion coefficient; obtaining a first volume of the first room and a second volume of the second room; Determining a target first pressure corresponding to the target first fresh air rate and the first volume according to a correspondence between the fresh air rate, volume, and pressure; Obtaining a preset pressure difference value that is negatively correlated with the current first temperature difference value; determining a target second pressure according to a difference between the target first pressure and the preset pressure difference; Determining a target second fresh air rate corresponding to the second volume and the target second pressure based on a correspondence between the fresh air rate, volume, and pressure, so that the first pressure in the first room is greater than or equal to the second pressure in the second room; The first fresh air device is controlled according to the target first fresh air rate, and the second fresh air device is controlled according to the target second fresh air rate.

2. The control method according to claim 1, characterized in that: Determining the target second pressure according to a difference between the target first pressure and the preset pressure difference includes: taking the difference between the target first pressure and the preset pressure difference as the target second pressure; or, The difference between the target first pressure and the preset pressure difference is fine-tuned, and the fine-tuned difference is used as the target second pressure; the fine-tuning operation is to increase or decrease.

3. The control method according to claim 1 or 2, characterized in that: Determination of the corresponding relationship between temperature difference and temperature promotion coefficient includes: Obtaining a first temperature difference threshold value that is positively correlated with the accuracy value of the room's temperature control device, and determining a second temperature difference threshold value corresponding to the first temperature difference threshold value; the first temperature difference threshold value is used to represent the temperature difference between the room's indoor temperature and a set temperature; the second temperature difference threshold value is used to represent the temperature difference between the room's indoor temperature and the outdoor temperature when the temperature difference between the room's indoor temperature and the set temperature is the first temperature difference threshold value; Determining a preset minimum pressure difference between indoors and outdoors and a minimum temperature promotion coefficient corresponding to the second temperature difference threshold; the preset minimum pressure difference corresponds to a fresh air rate of the fresh air device; Obtaining a preset third temperature difference threshold, and determining a fourth temperature difference threshold corresponding to the third temperature difference threshold; the third temperature difference threshold is used to represent the temperature difference between the indoor temperature of the room and the set temperature, the third temperature difference threshold is greater than the first temperature difference threshold, and the fourth temperature difference threshold is used to represent the temperature difference between the indoor temperature and the outdoor temperature of the room when the temperature difference between the indoor temperature of the room and the set temperature is the third temperature difference threshold; Determining a maximum temperature promotion coefficient corresponding to the fourth temperature difference threshold and the maximum fresh air rate of the fresh air device; Establishing a first mapping relationship between the first temperature difference threshold and the minimum temperature promotion coefficient; establishing a second mapping relationship between the third temperature difference threshold and the maximum temperature promotion coefficient; A positive correlation between the temperature difference and the temperature promotion coefficient is determined according to the first mapping relationship and the second mapping relationship.

4. The control method according to claim 3, characterized in that: Determining a preset minimum pressure difference between indoors and outdoors and a minimum temperature promotion coefficient corresponding to the second temperature difference threshold includes: Determining a first minimum fresh air rate corresponding to the preset minimum pressure difference based on a positive correlation between the pressure difference and the fresh air rate; According to the corresponding relationship between the temperature difference, the fresh air rate and the temperature promotion coefficient, the current second temperature difference threshold and the minimum temperature promotion coefficient corresponding to the first minimum fresh air rate are determined.

5. The control method according to claim 3, characterized in that: Determining the fourth temperature difference threshold and the maximum temperature promotion coefficient corresponding to the maximum fresh air rate of the fresh air device includes: According to the corresponding relationship between the temperature difference, the fresh air rate and the temperature promotion coefficient, the fourth temperature difference threshold and the maximum temperature promotion coefficient corresponding to the maximum fresh air rate are determined.

6. A control device for a linked fresh air device, characterized in that: A first fresh air device is provided in the first room, and a second fresh air device is provided in the second room. Air flows between the first room and the second room. The operation process of the control device is accompanied by the temperature adjustment process of the first room and the second room. The control device includes: a first obtaining module, configured to obtain a current first indoor temperature of the first room, a current second indoor temperature of the second room, set temperatures of the first room and the second room, and a current outdoor temperature of the outdoor environment, wherein the set temperatures are set temperatures of temperature adjustment devices of the first room and the second room; a second obtaining module, configured to obtain a current first temperature difference between the current first indoor temperature and the set temperature, and a current second temperature difference between the current first indoor temperature and the current outdoor temperature, when the current first indoor temperature is greater than the current second indoor temperature and is less than the current outdoor temperature and the set temperature, or when the current first indoor temperature is less than the current second indoor temperature and is greater than the current outdoor temperature and the set temperature; a first determining module, configured to determine a target temperature promotion coefficient corresponding to the current first temperature difference based on a correspondence between the temperature difference and the temperature promotion coefficient; the temperature promotion coefficient being used to represent the effect of the temperature difference between the first indoor temperature and the outdoor temperature of the first room and the first fresh air rate of the first fresh air device on the temperature change process of the first room; a second determining module, configured to determine a target first fresh air rate corresponding to the current second temperature difference and the target temperature promotion coefficient according to a correspondence among the temperature difference, the fresh air rate, and the temperature promotion coefficient; a third determination module configured to obtain a first volume of the first room and a second volume of the second room; determine a target first pressure corresponding to the target first fresh air rate and the first volume based on a correspondence among fresh air rate, volume, and pressure; obtain a preset pressure difference that is negatively correlated with the current first temperature difference; determine a target second pressure based on a difference between the target first pressure and the preset pressure difference; and determine a target second fresh air rate corresponding to the second volume and the target second pressure based on the correspondence among fresh air rate, volume, and pressure, so that the first pressure of the first room is greater than or equal to the second pressure of the second room. A control module is used to control the first fresh air device according to the target first fresh air rate, and to control the second fresh air device according to the target second fresh air rate.

7. A control device for a linked fresh air device, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method of the linked fresh air device according to any one of claims 1 to 5 when executing the program instructions.

8. A smart home system, characterized in that: It includes a control device for the linked fresh air device as described in claim 6 or 7.

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