Air conditioner and control method thereof

Abstract

The application discloses an air conditioner and a control method thereof. The air conditioner comprises a human body temperature detection device, an indoor temperature detection device and a controller. The human body temperature detection device is used for detecting the face temperature of a target user. The indoor temperature detection device is used for detecting the indoor environment temperature. The controller is configured to input the face temperature and the indoor environment temperature into a user individual temperature and cold and warm feeling decision tree model, determine the temperature and cold and warm feeling state of the target user according to the output value of the user individual temperature and cold and warm feeling decision tree model, adjust the current set target temperature according to the temperature and cold and warm feeling state, and control the air conditioner to operate according to the adjusted target temperature. At least six layers of temperature decision condition sets configured in the user individual temperature and cold and warm feeling decision tree model constitute multiple temperature judgment branches. The air conditioner and the control method thereof can meet the individual user comfort requirement and improve the comfort of the air conditioner.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of air conditioners, and in particular to an air conditioner and a control method of the air conditioner. BACKGROUND

[0002] Air conditioners are widely used in people's lives, and air conditioners play an important role in indoor temperature regulation, which can provide a healthy and comfortable indoor environment for users to meet the needs of normal work, life and study.

[0003] Currently, the comfort is usually designed by setting a single temperature index, or a single temperature index and a single humidity index are specified to design the comfort, so as to meet the comfort needs of most groups.

[0004] However, due to the difference in individual comfort needs, the single temperature and single humidity index adjustment cannot effectively meet the requirements of people on comfort, and cannot meet the differentiated and personalized thermal comfort control requirements of different users. SUMMARY

[0005] The present disclosure aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present disclosure is to provide an air conditioner which can meet the differentiated and personalized thermal comfort needs of different users.

[0006] Another object of the present disclosure is to provide a control method of the air conditioner.

[0007] To achieve the above object, the air conditioner of the first aspect of the present disclosure comprises: a human body temperature detection device for detecting the face temperature of a target user; an indoor temperature detection device for detecting the indoor environment temperature; a controller connected with the human body temperature detection device and the indoor temperature detection device, the controller being configured to: input the face temperature and the indoor environment temperature into a user individual temperature and cold sensation decision tree model, determine the temperature and cold sensation state of the target user according to the output value of the user individual temperature and cold sensation decision tree model, adjust the current set target temperature according to the temperature and cold sensation state, and control the air conditioner to operate according to the adjusted target temperature, wherein the user individual temperature and cold sensation decision tree model is configured with at least six layers of temperature decision condition sets, and the at least six layers of temperature decision condition sets constitute multiple temperature judgment branches, wherein the first layer of temperature decision condition set comprises a decision condition based on one face temperature, the second layer of temperature decision condition set comprises a decision condition based on two face temperatures, the third layer of temperature decision condition set comprises a decision condition based on two face temperatures and two indoor environment temperatures, the fourth layer of temperature decision condition set comprises a decision condition based on three face temperatures and five indoor environment temperatures, the fifth layer of temperature decision condition set comprises a decision condition based on six face temperatures and five indoor environment temperatures, and the sixth layer of temperature decision condition set comprises a decision condition based on eight face temperatures and seven indoor environment temperatures.

[0008] The control method of the air conditioner of the second aspect of the present disclosure comprises: receiving the face temperature of a target user and the indoor environment temperature; inputting the face temperature and the indoor environment temperature into a user individual temperature and cold sensation decision tree model, wherein the user individual temperature and cold sensation decision tree model is configured with at least six layers of temperature decision condition sets, and the at least six layers of temperature decision condition sets constitute multiple temperature judgment branches, wherein the first layer of temperature decision condition set comprises a decision condition based on one face temperature, the second layer of temperature decision condition set comprises a decision condition based on two face temperatures, the third layer of temperature decision condition set comprises a decision condition based on two face temperatures and two indoor environment temperatures, the fourth layer of temperature decision condition set comprises a decision condition based on three face temperatures and five indoor environment temperatures, the fifth layer of temperature decision condition set comprises a decision condition based on six face temperatures and five indoor environment temperatures, and the sixth layer of temperature decision condition set comprises a decision condition based on eight face temperatures and seven indoor environment temperatures; determining the temperature and cold sensation state of the target user according to the output value of the user individual temperature and cold sensation decision tree model; adjusting the current set target temperature according to the temperature and cold sensation state, and controlling the air conditioner to operate according to the adjusted target temperature.

[0009] The air conditioner and the control method thereof according to the embodiments of the present disclosure can make up for the deficiency of the PMV (Predicted Mean Vote) predicted comfort model based on the general population weakening the individual difference by adjusting the target temperature based on the user individual temperature and coldness decision tree model established based on big data and artificial intelligence technology, and can not only consider that the user individual face temperature can experience the current temperature and coldness of the user, but also consider that the indoor environment temperature will also affect the temperature and coldness experience of the user, so the air conditioner inputs the face temperature and the indoor environment temperature into the user individual temperature and coldness decision tree model, thereby meeting the temperature and coldness comfort of the target user individual, improving the individualization and differentiation of the user individual, and improving the comfort of the air conditioner.

[0010] Additional aspects and advantages of the present disclosure will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0011] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and not intended to be limiting of the embodiments, and in which like numerals refer to like elements throughout the drawings, and in which:

[0012] Figure 1 is a schematic diagram of a refrigeration cycle system of an air conditioner according to an embodiment of the present disclosure;

[0013] Figure 2 is a block diagram of an air conditioner according to an embodiment of the present disclosure;

[0014] Figure 3 is a flowchart of modeling of a user individual temperature and coldness decision tree model based on big data and artificial intelligence technology according to an embodiment of the present disclosure;

[0015] Figure 4 is a schematic diagram of partial configuration of a user individual temperature and coldness decision tree model according to an embodiment of the present disclosure;

[0016] Figure 5 is a schematic diagram of partial configuration of a user individual temperature and coldness decision tree model according to another embodiment of the present disclosure;

[0017] Figure 6 is a schematic diagram of partial configuration of a user individual temperature and coldness decision tree model according to still another embodiment of the present disclosure;

[0018] Figure 7 is a schematic diagram of partial configuration of a user individual temperature and coldness decision tree model according to still another embodiment of the present disclosure;

[0019] Figure 8 is a flow chart of overall operation logic of an air conditioner comfort control according to one embodiment of the present disclosure;

[0020] Figure 9 is a flow chart of operating a user individual comfort mode according to one embodiment of the present disclosure;

[0021] Figure 10 is a schematic diagram of an addressing process in a cooling mode according to one embodiment of the present disclosure;

[0022] Figure 11 is a schematic diagram of an addressing process in a heating mode according to one embodiment of the present disclosure;

[0023] Figure 12 is a flow chart of a control method of a TMS comfort mode according to one embodiment of the present disclosure;

[0024] Figure 13 is a schematic diagram of a humidity change curve according to one embodiment of the present disclosure;

[0025] Figure 14 is a method of indoor fan comfort control when an air conditioner operating mode is a cooling mode according to one embodiment of the present disclosure. DETAILED DESCRIPTION

[0026] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below with reference to the accompanying drawings, which are for reference only and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present disclosure.

[0027] The air conditioner in the present disclosure performs a cooling cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The cooling cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to air that has been adjusted and heat-exchanged. As shown in FIG. 1, it is a schematic diagram of a cooling cycle system of an air conditioner according to one embodiment of the present disclosure. Figure 1

[0028] The compressor compresses refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process. ​

[0029] The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigeration effect by exchanging heat with a material to be cooled using latent heat of evaporation of the refrigerant. Throughout the cycle, the air conditioner can adjust the temperature of an indoor space.

[0030] The outdoor unit of the air conditioner refers to a portion of the refrigeration cycle including the compressor and the outdoor heat exchanger, the indoor unit of the air conditioner includes the indoor heat exchanger, and the expansion valve can be provided in the indoor unit or the outdoor unit.

[0031] The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger serves as a condenser, the air conditioner serves as a heater in a heating mode, and when the indoor heat exchanger serves as an evaporator, the air conditioner serves as a cooler in a cooling mode.

[0032] To improve user individual comfort, the embodiments of the present disclosure improve the performance of the air conditioner, and propose an air conditioner and a control method thereof, which can meet the comfort needs of different user individuals.

[0033] Reference is made below to Figures 2-14 An air conditioner according to an embodiment of the present disclosure is described.

[0034] As Figure 2 shown, a block diagram of an air conditioner according to an embodiment of the present disclosure, the air conditioner 1 of the embodiments of the present disclosure includes a human body temperature detection device 10, an indoor temperature detection device 20, and a controller 30, and of course, other air conditioner system components such as Figure 1 a refrigerant circulation system shown.

[0035] The human body temperature detection device 10 is configured to detect the facial temperature of a target user. In an embodiment, the human body temperature detection device 10 can employ an infrared detection device such as an infrared camera to collect the temperature of the exposed part of the target user, such as the facial temperature.

[0036] The indoor temperature detection device 20 is configured to detect the indoor ambient temperature. Specifically, a temperature sensor can be provided on the indoor unit housing to collect the indoor air temperature, i.e., the indoor ambient temperature, or a temperature sensor can be provided at another location in the indoor space, or the indoor ambient temperature can be detected by an auxiliary device such as a smart robot, and the collected data of the indoor ambient temperature can be sent to the controller of the air conditioner.

[0037] The controller 30 is connected with the human body temperature detection device 10 and the indoor temperature detection device 20, and the controller 30 can pre-store a user individual temperature cold sensation decision tree model, which is pre-trained, generated, detected and stored in the controller 30, and the controller 30 can call the model at any time when performing related decisions.

[0038] In specific embodiments, the facial temperature includes forehead temperature, eye temperature, nose temperature and cheek temperature; the controller is configured to record the forehead temperature, eye temperature, nose temperature and cheek temperature of the target user within a preset time length, calculate the average value of the forehead temperature, eye temperature, nose temperature and cheek temperature within the preset time length, and perform weighted calculation on the average value of the forehead temperature, eye temperature, nose temperature and cheek temperature to obtain the average facial temperature, wherein the weight of the forehead temperature average value > the weight of the eye temperature average value > the weight of the nose temperature average value > the weight of the cheek temperature average value.

[0039] The user individual temperature cold sensation decision tree model will be described below.

[0040] In the embodiments of the present disclosure, the user individual temperature cold sensation decision tree model is a user individual temperature cold sensation decision tree model established by big data artificial intelligence technology based on human physiological parameters and environmental parameters for different thermal comfort requirements of individual users, which self-learns the user individual temperature cold sensation change rule, accurately identifies the user individual thermal comfort requirement, performs personalized thermal comfort control, and meets the different user individual differentiated and personalized thermal comfort control requirements.

[0041] As shown in FIG. 1, the user individual temperature cold sensation decision tree model is established by big data artificial intelligence technology according to an embodiment of the present disclosure. Figure 3

[0042] Specifically, first, data collection is performed, and training data and testing can be collected in a laboratory through infrared equipment, for example, skin temperatures such as facial temperatures of different populations including the elderly, children, men and women in different seasons can be collected, and it can be understood that different populations in different seasons can reflect different human thermal sensations, metabolic rates, clothing thermal resistances and environmental states, etc.

[0043] Secondly, model training is performed, and the training data model is screened and debugged and optimized. Specifically, the training data is input into the initial model, and then the initial model is debugged and optimized according to the model output result, so that the model output data can be closer to the real situation.

[0044] Thirdly, the model is generated. Specifically, the optimal model output of training is selected.

[0045] ​Finally, the model is predicted, and the model is predicted for the test data to obtain the model accuracy. For example, in an embodiment of the present disclosure, the accuracy of the user individual temperature cold and warm decision tree model used can reach more than 80%.

[0046] In an embodiment, the user individual temperature cold and warm decision tree model that meets the expectations can be stored in the storage unit of the controller 30 of the air conditioner 1 in advance. The user individual temperature cold and warm decision tree model of the embodiment of the present disclosure is configured with at least six layers of temperature decision condition sets, and the at least six layers of temperature decision condition sets constitute a plurality of temperature judgment branches, wherein the first layer of temperature decision condition set includes a decision condition based on one facial temperature, the second layer of temperature decision condition set includes a decision condition based on two facial temperatures, the third layer of temperature decision condition set includes a decision condition based on two facial temperatures and two indoor environment temperatures, the fourth layer of temperature decision condition set includes a decision condition based on three facial temperatures and five indoor environment temperatures, the fifth layer of temperature decision condition set includes a decision condition based on six facial temperatures and five indoor environment temperatures, and the sixth layer of temperature decision condition set includes a decision condition based on eight facial temperatures and seven indoor environment temperatures. For example, Figures 4-7 respectively, are schematic diagrams of parts of a user individual temperature cold and warm decision tree model according to an embodiment of the present disclosure. The model morphology is similar to a tree, the left branch represents a true judgment, the right branch represents a false judgment, a series of judgments are performed each time until there is no longer a branch, and the final result is output. In some embodiments, the user individual temperature cold and warm decision tree model can include at least six layers of temperature decision condition sets and forty-two temperature judgment branches composed of the at least six layers of temperature decision condition sets, and each temperature judgment branch can have the same or different temperature decision conditions. Wherein each branch of the model performs an independent temperature cold and warm judgment, each temperature judgment branch can output a corresponding temperature cold and warm prediction result, and the temperature cold and warm judgment final value, i.e., the output value of the user individual temperature cold and warm decision tree model, can be -1 (cold), 0 (neutral), and 1 (warm). Therefore, the current temperature cold and warm state of the user can be determined according to the output value of the user individual temperature cold and warm decision tree model.

[0047] It can be understood that, Figures 4-7 The user individual temperature cold and warm decision tree model shown is only an example of a model of an embodiment of the present disclosure, and other suitable decision tree models that meet expectations can also be used based on the results of model training optimization and testing.

[0048] Further, in the embodiments of the present disclosure, not only the facial temperature of the user individual can reflect the current thermal sensation of the user, but also the indoor environment temperature will also affect the thermal experience of the user, therefore, the facial temperature and the indoor environment temperature are comprehensively considered, the air conditioner 1 inputs the facial temperature and the indoor environment temperature into the user individual thermal sensation decision tree model, determines the thermal sensation state of the target user according to the output value of the user individual thermal sensation decision tree model, adjusts the current set target temperature according to the thermal sensation state, and controls the air conditioner to operate according to the adjusted target temperature, so as to meet the thermal comfort of the target user individual, improve the individualization and differentiation needs of the user individual, and improve the comfort of the air conditioner.

[0049] The current set target temperature can be the temperature set by the user through the control terminal of the air conditioner, such as a remote controller, a wire controller or an air conditioner APP loaded on a mobile intelligent device when the user starts, or can be the current temperature of the air conditioner when the user starts the user individual comfort mode, which is not limited here.

[0050] The air conditioner 1 of the embodiments of the present disclosure adjusts the target temperature by using the user individual thermal sensation decision tree model established based on big data and artificial intelligence technology, which can make up for the deficiency of the PMV prediction comfort model based on the general population that weakens the individual difference, so that the air conditioner 1 not only meets the comfort needs of the general population, but also realizes the individual comfort needs of a single family user.

[0051] Specifically, when the air conditioner 1 operates in the user individual comfort mode, for example, when there is only one person in the room, the human body temperature detection device 10 collects the facial temperature of the target user in real time, the indoor temperature detection device 20 collects the indoor environment temperature in real time, the controller 30 receives the temperature data, and calls the user individual thermal sensation decision tree model to compare the facial temperature and the indoor environment temperature with each layer of temperature decision condition set in each temperature decision branch of the user individual thermal sensation decision tree model, so as to determine the target temperature decision branch. Each temperature decision branch in the model is executed independently, the output value of the target temperature decision branch of the user individual thermal sensation decision tree model is obtained, the thermal sensation state corresponding to the output value is taken as the thermal sensation state of the target user, for example, the output value is -1, which represents that the user is cold; the output value is 0, which represents that the user is neither cold nor hot, that is, the neutral state; the output value is 1, which represents that the user is hot. Then, the target temperature is adjusted according to the current thermal sensation state of the user, and the compressor frequency, the fan speed, the direction of the air guide strip and the like of the air conditioner are adjusted according to the adjusted target temperature, so as to improve the user comfort and meet the individual comfort needs of the user.

[0052] The process of identifying the thermal sensation state of the user by the controller 30 will be described below with reference to the user individual thermal sensation decision tree model shown in FIG. 8. Figures 4-7

[0053] ​After the user activates the individual comfort model, the controller 30 acquires the facial temperature using T. 面部 Indoor ambient temperature is represented by T. 室内 Indicate, and will T 面部 and T 室内 Input user's individual temperature / coolness decision tree model, for example Figures 4-7 The tree model compares the temperature value with the temperature decision conditions in the model. Each temperature decision branch is executed independently until the model's output value is obtained, and the user's current temperature feeling state is determined based on the output value.

[0054] like Figures 4-7 As shown, each temperature determination branch is explained. In this embodiment, the user-specific temperature and coolness decision tree model uses facial temperature as the first-level temperature decision condition, facial temperature as the second-level temperature decision condition, and different branches below that use different temperature determination conditions for identification. Specifically, in this embodiment, facial temperature and indoor ambient temperature have different temperatures under different decision conditions in the user-specific temperature and coolness decision tree model. For example, the threshold values ​​for each decision condition of facial temperature are between 32.57℃ and 37.23℃, and the threshold values ​​for each decision condition of indoor ambient temperature are between 15.95℃ and 29.25℃.

[0055] In some embodiments, such as Figure 4 As shown, controller 30 is configured to: determine whether the facial temperature T is met. 面部 ≤T 面部设定1 If T is not satisfied 面部 ≤T 面部设定1 Then proceed to step ①, see details below. Figure 6 As shown. If T is satisfied... 面部 ≤T 面部设定1 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定2 , among which, T 面部设定2 <T 面部设定1 If T is not satisfied 面部 ≤T 面部设定2 Then proceed to step ②, see details below. Figure 5 As shown. If T is satisfied... 面部 ≤T 面部设定2 Then, it is further determined whether the indoor ambient temperature T is met. 室内 ≤T 室内设定1 If T is satisfied 室内 ≤T 室内设定1 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定3 , among which, T 面部设定3 <T 面部设定2 If T is satisfied 面部 ≤T面部设定3 , then further determine whether the indoor environment temperature T 室内 < T 室内设定2 , wherein T 室内设定2 < T 室内设定1 ; if T 室内 < T 室内设定2 , then further determine whether the indoor environment temperature T 室内 < T 室内设定3 , wherein T 室内设定3 < T 室内设定2 ; if T 室内 < T 室内设定3 , then determine that the target temperature determination branch is the first temperature determination branch, and the output value of the user individual temperature and thermal sensation decision tree model corresponding to the first temperature determination branch is a cold bias output value, for example, output is -1, then the target user's thermal sensation state is cold bias. That is, the user's current feeling temperature is too low, so the current set target temperature is increased to improve the user's body temperature and improve comfort.

[0056] If T 室内 < T 室内设定3 , then determine that the target temperature determination branch is the second temperature determination branch, and the output value of the user individual temperature and thermal sensation decision tree model corresponding to the second temperature determination branch is a cold bias output value, for example, output is -1, then the target user's thermal sensation state is cold bias. That is, the user's current feeling temperature is too low, so the current set target temperature is increased to improve the user's body temperature and improve comfort.

[0057] In some embodiments, as shown in Figure 4 , the controller 30 is further configured to: if T 室内 < T 室内设定2 , then further determine whether the indoor environment temperature T 室内 < T 室内设定4 , wherein T 室内设定2 < T 室内设定4 ; if T 室内 < T 室内设定4 , then determine that the target temperature determination branch is the third temperature determination branch, and the output value of the user individual temperature and thermal sensation decision tree model corresponding to the third temperature determination branch is a neutral output value, for example, output is 0, then the target user's thermal sensation state is neutral. That is, the user's current feeling temperature is neither cold nor hot, at this time, the current set target temperature can be maintained, that is, the air conditioner can currently meet the user's individual comfort needs.

[0058] If T 室内 < T 室内设定4If the target temperature determination branch is determined to be the fourth temperature determination branch, and the output value of the fourth temperature determination branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., the output is 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0059] In some embodiments, such as Figure 4 As shown, controller 30 is also configured to: if T is not satisfied 面部 ≤T 面部设定3 Then, it is further determined whether the indoor ambient temperature T is met. 室内 ≤T 室内设定5 , among which, T 室内设定1 <T 室内设定5 If T is satisfied 室内 ≤T 室内设定5 Then, it is further determined whether the indoor ambient temperature T is met. 室内 ≤T 室内设定6 , among which, T 室内设定6 <T 室内设定5 If T is satisfied 室内 ≤T 室内设定6 If the target temperature determination branch is determined to be the fifth temperature determination branch, and the output value of the fifth temperature determination branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., the output is 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0060] If T is not satisfied 室内 ≤T 室内设定6 If the target temperature determination branch is determined to be the sixth temperature determination branch, and the output value of the sixth temperature determination branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a "cold" output value, for example, -1, then the target user's temperature and coldness state is "cold". That is, if the user currently feels that the temperature is too low, the current set target temperature will be increased to improve the user's perceived temperature and increase comfort.

[0061] In some embodiments, such as Figure 4 As shown, controller 30 is also configured to: if T is not satisfied 室内 ≤T 室内设定5 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定4 , among which, T 面部设定3 <T 面部设定4 If T is satisfied 面部 ≤T 面部设定4If the target temperature decision branch is determined to be the seventh temperature decision branch, and the output value of the seventh temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., an output of 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs. If T is not met... 面部 ≤T 面部设定4 If the target temperature determination branch is determined to be the eighth temperature determination branch, and the output value of the eighth temperature determination branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a "cold" output value, for example, -1, then the target user's temperature and coldness state is "cold". That is, if the user currently feels that the temperature is too low, the currently set target temperature will be increased to improve the user's perceived temperature and improve comfort.

[0062] In some embodiments, such as Figure 4 As shown, controller 30 is also configured to: if T is not satisfied 室内 ≤T 室内设定1 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定5 If T is not satisfied 面部 ≤T 面部设定5 If the target temperature determination branch is determined to be the ninth temperature determination branch, the output value of the ninth temperature determination branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a "hot" output value. For example, if the output is 1, then the target user's temperature and coldness state is "hot". That is, if the user currently feels that the temperature is too high, then the currently set target temperature is lowered to reduce the user's perceived temperature and improve comfort.

[0063] If T is satisfied 面部 ≤T 面部设定5 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定6 , among which, T 面部设定6 <T 面部设定5 If T is satisfied 面部 ≤T 面部设定6 If the target temperature determination branch is determined as the tenth temperature determination branch, and the output value of the tenth temperature determination branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., the output is 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the currently set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0064] If T is not satisfied 面部 ≤T 面部设定6If the target temperature determination branch is determined to be the eleventh temperature determination branch, and the output value of the corresponding eleventh temperature determination branch of the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., the output is 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0065] In some embodiments, such as Figure 5 As shown, controller 30 is configured to: if T is not satisfied 面部 ≤T 面部设定2 Then proceed with step ②, which specifically includes: determining whether the indoor ambient temperature T is met. 室内 ≤T 室内设定7 If T is satisfied 室内 ≤T 室内设定7 Then, it is further determined whether the indoor ambient temperature T is met. 室内 ≤T 室内设定8 , among which, T 室内设定8 <T 室内设定7 If T is satisfied 室内 ≤T 室内设定8 If the target temperature decision branch is determined to be the twelfth temperature decision branch, and the output value of the corresponding twelfth temperature decision branch of the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., an output of 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0066] If T is not satisfied 室内 ≤T 室内设定8 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定7 , among which, T 面部设定2 <T 面部设定7 If T is satisfied 面部 ≤T 面部设定7 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定8 , among which, T 面部设定8 <T 面部设定7 If T is satisfied 面部 ≤T 面部设定8 If the target temperature decision branch is determined to be the thirteenth temperature decision branch, and the output value of the corresponding thirteenth temperature decision branch of the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., an output of 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0067] If T is not satisfied 面部≤T 面部设定8 If the target temperature decision branch is determined to be the fourteenth temperature decision branch, and the output value of the fourteenth temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., the output is 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0068] In some embodiments, such as Figure 5 As shown, controller 30 is also configured to: if T is not satisfied 面部 ≤T 面部设定7 Then, it is further determined whether the indoor ambient temperature T is met. 室内 ≤T 室内设定9 , among which, T 室内设定8 <T 室内设定9 If T is satisfied 室内 ≤T 室内设定9 If the target temperature determination branch is determined to be the fifteenth temperature determination branch, and the output value of the fifteenth temperature determination branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a "cold" output value, for example, -1, then the target user's temperature and coldness state is "cold". That is, if the user currently feels that the temperature is too low, the current set target temperature will be increased to improve the user's perceived temperature and increase comfort.

[0069] If T is not satisfied 室内 ≤T 室内设定9 If the target temperature determination branch is determined to be the sixteenth temperature determination branch, and the output value of the sixteenth temperature determination branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a "cold" output value, for example, -1, then the target user's temperature and coldness state is "cold". That is, if the user currently feels that the temperature is too low, the current set target temperature will be increased to improve the user's perceived temperature and improve comfort.

[0070] In some embodiments, such as Figure 5 As shown, controller 30 is configured to: if T is not satisfied 室内 ≤T 室内设定7 Then, it is further determined whether the indoor ambient temperature T is met. 室内 ≤T 室内设定10 , among which, T 室内设定7 <T 室内设定10 If T is satisfied 室内 ≤T 室内设定10 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定9 , among which, T 面部设定2 <T 面部设定9 If T is satisfied 面部 ≤T 面部设定9 Then, further determine whether the facial temperature T is met. 面部 ≤T面部设定10 , among which, T 面部设定10 <T 面部设定9 If T is satisfied 面部 ≤T 面部设定10 If the target temperature decision branch is determined to be the seventeenth temperature decision branch, and the output value of the seventeenth temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., an output of 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0071] If T is not satisfied 面部 ≤T 面部设定10 If the target temperature determination branch is determined to be the eighteenth temperature determination branch, the output value of the eighteenth temperature determination branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a "hot" output value. For example, if the output is 1, then the target user's temperature and coldness state is "hot". That is, if the user currently feels that the temperature is too high, then the currently set target temperature is lowered to reduce the user's perceived temperature and improve comfort.

[0072] In some embodiments, such as Figure 5 As shown, controller 30 is configured to: if T is not satisfied 面部 ≤T 面部设定9 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定11 , among which, T 面部设定9 <T 面部设定11 If T is satisfied 面部 ≤T 面部设定11 If the target temperature decision branch is determined to be the nineteenth temperature decision branch, and the output value of the nineteenth temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., the output is 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0073] If T is not satisfied 面部 ≤T 面部设定11 If the target temperature decision branch is determined as the twentieth temperature decision branch, and the output value of the corresponding twentieth temperature decision branch of the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., an output of 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0074] In some embodiments, such as Figure 5 As shown, controller 30 is configured to: if T is not satisfied 室内 ≤T 室内设定10Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定12 , among which, T 面部设定2 <T 面部设定12 If T is not satisfied 面部 ≤T 面部设定12 If the target temperature decision branch is determined to be the twenty-first temperature decision branch, and the output value of the twenty-first temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., an output of 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0075] If T is satisfied 面部 ≤T 面部设定12 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定13 , among which, T 面部设定13 <T 面部设定12 If T is satisfied 面部 ≤T 面部设定13 If the target temperature decision branch is determined to be the twenty-second temperature decision branch, and the output value of the twenty-second temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., an output of 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0076] If T is not satisfied 面部 ≤T 面部设定13 If the target temperature decision branch is determined to be the 23rd temperature decision branch, and the output value of the corresponding 23rd temperature decision branch of the user's individual temperature and cold perception decision tree model is obtained as a "hot" output value, for example, an output of 1, then the target user's temperature and cold perception state is "hot". That is, if the user currently feels that the temperature is too high, then the currently set target temperature is lowered to reduce the user's perceived temperature and improve comfort.

[0077] In some embodiments, such as Figure 6 As shown, controller 30 is configured to: if T is not satisfied 面部 ≤T 面部设定1 Then execute step ①, which specifically includes: determining whether the facial temperature T is met. 面部 ≤T 面部设定14 , among which, T 面部设定1 <T 面部设定14 If T is not satisfied 面部 ≤T 面部设定14 Then proceed to step ③, see details below. Figure 7 As shown. If T is satisfied... 面部 ≤T 面部设定14Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定15 , among which, T 面部设定15 <T 面部设定14 If T is satisfied 室内 ≤T 室内设定15 Then, it is further determined whether the indoor ambient temperature T is met. 室内 ≤T 室内设定11 If T is satisfied 室内 ≤T 室内设定11 Then, it is further determined whether the indoor ambient temperature T is met. 室内 ≤T 室内设定12 , among which, T 室内设定12 <T 室内设定11 If T is satisfied 室内 ≤T 室内设定12 Then, it is further determined whether the indoor ambient temperature T is met. 室内 ≤T 室内设定13 , among which, T 室内设定13 <T 室内设定12 If T is satisfied 室内 ≤T 室内设定13 If the target temperature decision branch is determined to be the twenty-fourth temperature decision branch, and the output value of the twenty-fourth temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., an output of 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0078] If T is not satisfied 室内 ≤T 室内设定13 If the target temperature decision branch is determined to be the 25th temperature decision branch, and the output value of the 25th temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., an output of 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0079] In some embodiments, such as Figure 6 As shown, controller 30 is configured to: if T is not satisfied 室内 ≤T 室内设定12 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定16 , among which, T 面部设定16 <T 面部设定15 If T is satisfied 面部 ≤T 面部设定16If the target temperature determination branch is determined to be the 26th temperature determination branch, and the output value of the 26th temperature determination branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., an output of 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the currently set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0080] If T is not satisfied 面部 ≤T 面部设定16 If the target temperature decision branch is determined to be the 27th temperature decision branch, and the output value of the 27th temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., an output of 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0081] In some embodiments, such as Figure 6 As shown, controller 30 is configured to: if T is not satisfied 室内 ≤T 室内设定11 Then, it is further determined whether the indoor ambient temperature T is met. 室内 ≤T 室内设定14 , among which, T 室内设定11 <T 室内设定14 If T is satisfied 室内 ≤T 室内设定14 Then, it is further determined whether the indoor ambient temperature T is met. 室内 ≤T 室内设定15 , among which, T 室内设定15 <T 室内设定14 If T is satisfied 室内 ≤T 室内设定15 If the target temperature determination branch is determined to be the 28th temperature determination branch, and the output value of the corresponding 28th temperature determination branch of the user's individual temperature and cold perception decision tree model is obtained as a "hot" output value, for example, an output of 1, then the target user's temperature and cold perception state is "hot". That is, if the user currently feels that the temperature is too high, then the currently set target temperature is lowered to reduce the user's perceived temperature and improve comfort.

[0082] If T is not satisfied 室内 ≤T 室内设定15 If the target temperature decision branch is determined to be the 29th temperature decision branch, and the output value of the 29th temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., an output of 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0083] In some embodiments, such as Figure 6As shown, the controller 30 is configured to: if T 室内 ≤T 室内设定14 , further determine whether T 面部 ≤T 面部设定17 , where T 面部设定17 <T 面部设定15 ; if T 面部 ≤T 面部设定17 , determine that the target temperature determination branch is a thirtieth temperature determination branch, and obtain an output value corresponding to the thirtieth temperature determination branch of the individual temperature and thermal sensation decision tree model as a warm output value, for example, output as 1, and then determine that the thermal sensation state of the target user is warm. That is, the user currently feels that the temperature is too high, and then the current set target temperature is reduced to reduce the user's body temperature and improve comfort.

[0084] If T 面部 ≤T 面部设定17 , determine that the target temperature determination branch is a thirty-first temperature determination branch, and obtain an output value corresponding to the thirty-first temperature determination branch of the individual temperature and thermal sensation decision tree model as a warm output value, for example, output as 1, and then determine that the thermal sensation state of the target user is warm. That is, the user currently feels that the temperature is too high, and then the current set target temperature is reduced to reduce the user's body temperature and improve comfort.

[0085] In some embodiments, as shown in Figure 6 , the air conditioner 30 is further configured to: if T 面部 ≤T 面部设定15 , further determine whether T 室内 ≤T 室内设定16 .

[0086] If T 室内 ≤T 室内设定16 , determine that the target temperature determination branch is a thirty-second temperature determination branch, and obtain an output value corresponding to the thirty-second temperature determination branch of the individual temperature and thermal sensation decision tree model as a neutral output value, for example, output as 0, and then determine that the thermal sensation state of the target user is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, that is, the air conditioner can currently meet the individual comfort needs of the user.

[0087] If T 室内 ≤T 室内设定16 , determine that the target temperature determination branch is a thirty-third temperature determination branch, and obtain an output value corresponding to the thirty-third temperature determination branch of the individual temperature and thermal sensation decision tree model as a neutral output value, for example, output as 0, and then determine that the thermal sensation state of the target user is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, that is, the air conditioner can currently meet the individual comfort needs of the user.

[0088] In some embodiments, such as Figure 7 As shown, controller 30 is configured to: if T is not satisfied 面部 ≤T 面部设定14 Then proceed to step ③, which specifically includes: determining whether the facial temperature T is met. 面部 ≤T 面部设定18 , among which, T 面部设定14 <T 面部设定18 If T is satisfied 面部 ≤T 面部设定18 Then, it is further determined whether the indoor ambient temperature T is met. 室内 ≤T 室内设定17 If T is satisfied 室内 ≤T 室内设定17 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定19 , among which, T 面部设定19 <T 面部设定18 If T is satisfied 面部 ≤T 面部设定19 If the target temperature decision branch is determined to be the thirty-fourth temperature decision branch, and the output value of the thirty-fourth temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a "cold" output value, for example, -1, then the target user's temperature and coldness state is "cold". That is, if the user currently feels the temperature is too low, the currently set target temperature will be increased to improve the user's perceived temperature and increase comfort.

[0089] If T is not satisfied 面部 ≤T 面部设定19 If the target temperature decision branch is determined to be the 35th temperature decision branch, and the output value of the 35th temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a neutral output value (e.g., an output of 0), then the target user's temperature and coldness state is neutral. That is, the user currently feels neither cold nor hot, and at this time, the current set target temperature can be maintained, meaning the air conditioner can currently meet the user's individual comfort needs.

[0090] In some embodiments, such as Figure 7 As shown, air conditioner 30 is also configured to: if T is not met 室内 ≤T 室内设定17 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定20 , among which, T 面部设定20 <T 面部设定18 If T is satisfied 面部 ≤T 面部设定20 Then, it is further determined whether the indoor ambient temperature T is met. 室内 ≤T 室内设定18 , among which, T 室内设定17 <T 室内设定18 If T is satisfied 室内 ≤T室内设定18 If the target temperature decision branch is determined to be the thirty-sixth temperature decision branch, the output value of the thirty-sixth temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a "hot" output value. For example, if the output is 1, then the target user's temperature and coldness state is "hot". That is, if the user currently feels that the temperature is too high, then the currently set target temperature is lowered to reduce the user's perceived temperature and improve comfort.

[0091] If T is not satisfied 室内 ≤T 室内设定18 If the target temperature decision branch is determined to be the 37th temperature decision branch, and the output value of the 37th temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a "hot" output value, for example, an output of 1, then the target user's temperature and coldness state is "hot". That is, if the user currently feels that the temperature is too high, then the currently set target temperature is lowered to reduce the user's perceived temperature and improve comfort.

[0092] In some embodiments, such as Figure 7 As shown, air conditioner 30 is also configured to: if T is not met 面部 ≤T 面部设定20 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定21 , among which, T 面部设定20 <T 面部设定21 If T is satisfied 面部 ≤T 面部设定21 If the target temperature decision branch is determined to be the 38th temperature decision branch, and the output value of the corresponding 38th temperature decision branch of the user's individual temperature and cold perception decision tree model is obtained as a "hot" output value, for example, an output of 1, then the target user's temperature and cold perception state is "hot". That is, if the user currently feels that the temperature is too high, then the currently set target temperature will be lowered to reduce the user's perceived temperature and improve comfort.

[0093] If T is not satisfied 面部 ≤T 面部设定21 If the target temperature decision branch is determined to be the 39th temperature decision branch, and the output value of the 39th temperature decision branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a "hot" output value, for example, an output of 1, then the target user's temperature and coldness state is "hot". That is, if the user currently feels that the temperature is too high, then the currently set target temperature is lowered to reduce the user's perceived temperature and improve comfort.

[0094] In some embodiments, such as Figure 7 As shown, air conditioner 30 is also configured to: if T is not met 面部 ≤T 面部设定18 Then, further determine whether the facial temperature T is met. 面部 ≤T 面部设定22 , among which, T 面部设定18 <T 面部设定22 If T is satisfied面部 ≤ T 面部设定22 , it is determined that the target temperature judgment branch is the fortieth temperature judgment branch, and the output value of the user individual temperature and cold sensation decision tree model corresponding to the fortieth temperature judgment branch is a neutral output value, for example, the output is 0, and the temperature and cold sensation state of the target user is neutral. That is, the user currently feels neither cold nor hot, at this time, the current set target temperature can be maintained, that is, the air conditioner can currently meet the individual comfort needs of the user.

[0095] If T 面部 ≤ T 面部设定22 , it is further determined whether T 室内 ≤ T 室内设定19 ; if T 室内 ≤ T 室内设定19 , it is determined that the target temperature judgment branch is the forty-first temperature judgment branch, and the output value of the user individual temperature and cold sensation decision tree model corresponding to the forty-first temperature judgment branch is a hot bias output value, for example, the output is 1, and the temperature and cold sensation state of the target user is hot bias. That is, the user currently feels that the temperature is too high, and the current set target temperature is reduced to reduce the user's body temperature and improve comfort.

[0096] If T 室内 ≤ T 室内设定19 , it is determined that the target temperature judgment branch is the forty-second temperature judgment branch, and the output value of the user individual temperature and cold sensation decision tree model corresponding to the forty-second temperature judgment branch is a neutral output value, for example, the output is 0, and the temperature and cold sensation state of the target user is neutral. That is, the user currently feels neither cold nor hot, at this time, the current set target temperature can be maintained, that is, the air conditioner can currently meet the individual comfort needs of the user.

[0097] The above is the process of judging the user's temperature and cold sensation state by using the user individual temperature and cold sensation decision tree model as shown in Figures 4-7 It can be understood that the user individual temperature and cold sensation recognition process of other models is similar to the above process, but the model level, temperature judgment branch, and temperature decision condition of each node of each branch of the model are different from the model of the present disclosure.

[0098] Furthermore, in some embodiments, to improve the accuracy of identifying a user's current temperature sensitivity based on the aforementioned user-specific temperature sensitivity decision tree model, the controller 30 is further configured to periodically input facial temperature and indoor ambient temperature into the user-specific temperature sensitivity decision tree model to obtain a preset number of output values. These preset number of output values ​​are then statistically analyzed and categorized, and the temperature sensitivity state corresponding to the output value in the category containing the most output values ​​is taken as the target user's temperature sensitivity state. This improves the accuracy of user-specific temperature sensitivity identification, allowing the model to further optimize itself through machine learning, thereby further improving the accuracy of the identification results and creating a virtuous cycle.

[0099] In some embodiments, the controller 30 is further configured to: increase the indoor fan speed of the air conditioner 1 if the target user's perceived temperature is too cold after a preset number of consecutive tests when the air conditioner 1 is in heating mode; decrease the indoor fan speed of the air conditioner 1 if the target user's perceived temperature is too hot after a preset number of consecutive tests when the air conditioner 1 is in heating mode; decrease the indoor fan speed of the air conditioner 1 if the target user's perceived temperature is too cold after a preset number of consecutive tests when the air conditioner 1 is in cooling mode; and increase the indoor fan speed of the air conditioner 1 if the target user's perceived temperature is too hot after a preset number of consecutive tests when the air conditioner 1 is in cooling mode. For example, the controller 30 uses a user's individual temperature perception decision tree model to perform three independent temperature perception judgment values ​​(-1, 0, 1) respectively, and then performs statistical analysis. The temperature perception value with the most statistically significant values ​​is the final output value for temperature perception judgment.

[0100] For example, such as Figure 8 The diagram shows a flowchart of the overall operation logic of the comfort control of an air conditioner according to an embodiment of this disclosure. If the controller 30 outputs a "hot" (1) result based on the user's individual temperature and coldness perception decision tree model, the controller 30 sends a cooling signal, lowering the set temperature by 1°C. If the controller 30 outputs a "cold" (-1) result based on the user's individual temperature and coldness perception decision tree model, the controller 30 sends a heating signal, raising the set temperature by 1°C. If the controller 30 outputs a "neutral" (0) result based on the user's individual temperature and coldness perception decision tree model, the controller 30 maintains the existing setting. Each judgment cycle is based on the air conditioner feedback time. If the temperature and coldness perception prediction is "cold" (or "hot") for three consecutive cycles, it is considered that the user's individual temperature and coldness perception is strong, and the fan speed needs to be increased by one level; otherwise, the air conditioner fan speed remains unchanged.

[0101] In some embodiments, the second aspect of the present disclosure also proposes a control method of an air conditioner, which can be executed by a controller of the air conditioner, and the control method comprises: receiving a face temperature of a target user and an indoor environment temperature; inputting the face temperature and the indoor environment temperature into a user individual temperature and cold sensation decision tree model, wherein the user individual temperature and cold sensation decision tree model is configured with at least six layers of temperature decision condition sets, and the at least six layers of temperature decision condition sets constitute a plurality of temperature determination branches, wherein the first layer of temperature decision condition set comprises a decision condition based on one face temperature, the second layer of temperature decision condition set comprises a decision condition based on two face temperatures, the third layer of temperature decision condition set comprises a decision condition based on two face temperatures and two indoor environment temperatures, the fourth layer of temperature decision condition set comprises a decision condition based on three face temperatures and five indoor environment temperatures, the fifth layer of temperature decision condition set comprises a decision condition based on six face temperatures and five indoor environment temperatures, and the sixth layer of temperature decision condition set comprises a decision condition based on eight face temperatures and seven indoor environment temperatures; determining a temperature and cold sensation state of the target user according to an output value of the user individual temperature and cold sensation decision tree model; adjusting a current set target temperature according to the temperature and cold sensation state, and controlling the air conditioner to operate according to the adjusted target temperature.

[0102] Of course, in embodiments, the control method of the air conditioner of the present disclosure can also include other contents executed by the controller of the air conditioner, such as how to obtain the face temperature specifically, and how to identify the current temperature and cold sensation state of the user based on the user individual temperature and cold sensation decision tree model, which are described above and will not be repeated here.

[0103] In summary, the present disclosure uses artificial intelligence technology based on big data to establish a user individual temperature and cold sensation decision tree model to accurately identify the individual thermal comfort needs of the user and achieve personalized thermal comfort control, so as to meet the differentiated and personalized comfort control requirements of different individual users. At the same time, the present disclosure makes up for the deficiency of the PMV predicted comfort model based on the general population, which weakens the individual differences, so that the air conditioner 1 not only meets the comfort needs of the general population, but also realizes the personalized comfort needs of individual family users.

[0104] In embodiments, when there is only one user in the room, the user selects the user individual comfort mode, or the air conditioner 1 detects that there is only one user in the room and automatically starts the user individual comfort mode, the air conditioner 1 can execute the user individual comfort mode according to the above embodiments to improve the individual comfort of the user. However, when there are multiple people in the room, the air conditioner 1 will run the TMS (Thermal and humidity Management System) comfort mode based on the PMV predicted comfort model suitable for the general population.

[0105] In some embodiments, when the air conditioner 1 is running automatically, it can activate the indoor user detection function to detect how many people are in the room. If there is one person, it can automatically activate the individual user comfort mode, and if there are multiple people, it can run the TMS comfort mode.

[0106] For individual user comfort modes, such as Figure 9 As shown, when the air conditioner 1 is running, it activates the user's individual comfort mode, collects indoor temperature and humidity, and then the controller 30 calculates the target temperature or receives the target temperature set by the user. The controller 30 receives the target user's facial temperature and indoor ambient temperature and calls the user's individual temperature and coldness decision tree model. Then, it adjusts the target temperature according to the model output value, and then controls the air conditioner to run automatically based on the adjusted target temperature to meet the individual user's personalized comfort needs and improve user comfort.

[0107] The following section explains the TMS comfort mode based on the PMV predictive comfort model.

[0108] In some embodiments, the TMS comfort mode is an air conditioner cooling / heating comfort control method that effectively adjusts the comfort level of the air conditioner. It effectively solves the technical problem of how to control the air conditioner through temperature and humidity indicators. The entire comfortable cooling / heating stage is divided into three stages: initial comfort stage + stable comfort stage + healthy comfort stage. It not only effectively meets people's requirements for a perfect experience of cooling comfort, but also achieves a perfect combination of comfort and energy saving. In the healthy comfort stage, according to the thermal adaptability characteristics of the human body, the target set temperature is raised by 1℃, that is, Ts_saving = Ts_comfort + 1℃, which achieves the purpose of both comfort and energy saving.

[0109] In this embodiment, the TMS comfort mode first relies on temperature and humidity target values ​​for addressing. The temperature and humidity addressing rule is calculated based on the predicted average thermal perception index (PMV) of the human body, generating a "comfort temperature and humidity benchmark table (PMV value within ±0.5)" as the benchmark table for the air conditioner's comfort control. The air conditioner detects the outdoor ambient temperature Tout, indoor ambient temperature Tin, and indoor relative humidity Rh through sensors. It enters the corresponding temperature zone according to the acquired outer ring Tout, and combines this with the thermal resistance clo of human clothing and the metabolic rate M of human activity to obtain different temperature compensation values ​​T_compensation, and determines the specific operating mode of the air conditioner (cooling / heating / ventilation). Then, based on the comfort temperature and humidity benchmark table, and using the acquired indoor relative humidity Rh as a pointer, it addresses within the benchmark table to determine the target set temperature Ts_comfort for the stable comfort stage. The air conditioner operates with Ts_comfort as the target set value.

[0110] In some embodiments, for the TMS comfort mode, the starting temperature and humidity addressing always addresses six human thermal sensation factors around the PMV value: environmental parameters (air temperature, air relative humidity, wind speed, mean radiant temperature) and human parameters (human activity intensity, clothing thermal resistance), focusing on human comfort control. The current industry practice is mainly to design a comfort air conditioner by controlling a single temperature index, or to use a specified single temperature index + a specified single humidity index. The advantages of the TMS comfort mode are very obvious.

[0111] Table 1 below is the name and meaning of each symbol in the TMS comfort mode description.

[0112] Table 1

[0113]

[0114] In some embodiments, when the TMS comfort mode is running, the air conditioner detects the outer ring Tout, the inner ring Tin, and the indoor relative humidity Rh through its own configured sensors. According to the obtained Tout, it enters the corresponding temperature zone, and determines the next specific operation mode (cooling / heating / air supply). Every 2 hours, according to the outer ring temperature Tout, a new operation temperature zone is determined. If it is still in the original operation temperature zone, the original mode and stage operation are maintained; if it is in a new temperature zone, the original operation mode is interrupted, and a new specific sub-mode operation is entered in combination with the inner ring temperature Tin and the indoor relative humidity Rh in the new temperature zone. If the indoor sensor fails or overflows, or there is no humidity sensor, Rh is defaulted to 65%.

[0115] In some embodiments, according to the comfort temperature and humidity reference table, the obtained Tout enters the corresponding temperature zone, and the mode to be entered is determined, including cooling, heating, air supply, etc. Then, according to the rules in different modes, the addressing is performed, which is as follows.

[0116] Table 2 Comfort Temperature and Humidity Reference Table

[0117]

[0118] Table 3 Temperature Compensation Value Table

[0119] Outdoor ambient temperature Tout (°C) Clothing thermal resistance clo Metabolic rate of the human body M Comfort temperature compensation value T 补( °C > 24 (fourth temperature zone) 0.5 1.2 0 > 18, < 24 (third temperature zone) 0.8 1.2 -2 > 13, < 18 (second temperature zone) 1.0 1.2 -3 < 13 (first temperature zone) 1.0 1.2 -3

[0120] In some embodiments, when the air conditioner is running in cooling mode, the addressing process is as shown in Figure 10

[0121] According to the reference comfort table in Table 3. If Rh < 30% (the lower limit of the comfort humidity in the comfort table), the lowest temperature corresponding to Rh 30% in the comfort table is Ts_ 初 (Ts_ 初 ​= 24.5 °C); If Rh > 65% (the upper limit value of comfortable humidity in the comfort table), the lowest temperature Ts_ corresponding to Rh 65% in the comfort table is used. 初 (Ts_ 初 = 23.5 °C); If 65% ≥ Rh ≥ 30% (the upper and lower limit values of comfortable humidity in the comfort table), the lowest temperature Ts_ corresponding to the closest humidity in the comfort table is used. 初 (For example, if Rh = 43%, the closest humidity in the comfort table is Rh = 45%, then the lowest temperature Ts_ corresponding to Rh = 45% is 初 = 24 °C). The average value (25.25 °C) of the sum of the upper limit value of comfortable humidity (26.5 °C) and the lower limit value of comfortable humidity (24 °C) corresponding to Rh = 50% in the comfort table is taken as Ts_ 舒 , and the default is 25.5 °C.

[0122] In some embodiments, when the air conditioner operates in the heating mode, referring to Figure 11 as shown, the addressing process is as follows:

[0123] According to Table 3, the reference comfort table. If Rh < 30% (the lower limit value of comfortable humidity in the comfort table), the highest temperature Ts_ corresponding to Rh 30% in the comfort table is used. 初 (Ts_ 初 = 27 °C); If Rh > 65% (the upper limit value of comfortable humidity in the comfort table), the highest temperature Ts_ corresponding to Rh 65% in the comfort table is used. 初 (Ts_ 初 = 26 °C); If 65% ≥ Rh ≥ 30% (the upper and lower limit values of comfortable humidity in the comfort table), the highest temperature Ts_ corresponding to the closest humidity in the comfort table is used. 初 (For example, if Rh = 43%, the closest humidity in the comfort table is Rh = 45%, then the highest temperature Ts_ corresponding to Rh = 45% is 初 = 26.5 °C). The average value (25.25 °C) of the sum of the upper limit value of comfortable humidity (26.5 °C) and the lower limit value of comfortable humidity (24 °C) corresponding to Rh = 50% in the comfort table is taken as Ts_ Shu, and the default is 25.5 °C.

[0124] In some embodiments, when the air conditioner operates in the air supply mode, the air conditioner does not perform addressing.

[0125] The following takes the process of the air conditioner operating in the TMS comfort mode in the dehumidification and cooling modes as an example for illustration.

[0126] For example, as Figure 12 shown, Tout > 24 °C.

[0127] ⑴. If Tin ≤ 28 °C and Rh ≥ 65%, enter the dehumidification mode. Check Tables 2 and 3 to obtain Ts_ in the dehumidification mode. 初, Ts_ 舒 , Ts_ 节 (Wherein Ts_ 节 = Ts_ 舒 + 1℃) and Tsupplement, into the initial comfort stage of dehumidification.

[0128] In the initial comfort stage of dehumidification: Ts=Ts_ 初 + T 补 , the display screen of the air conditioner Ts_ 舒 + Tsupplement and the air conditioner display has the icon of TMS comfort mode running stage change), when E≤0.5℃ and accumulates 5min or (Tin-(Ts_ 舒 + T 补 ))≤-0.5℃ and accumulates 15min, into the stable comfort stage of dehumidification / / (Tin-(Ts_ 舒 + T 补 ))≤-0.5℃ represents that the initial comfort stage set temperature is not reached, but the stable comfort stage set temperature is reached.

[0129] Stable comfort stage of dehumidification: Ts(1)=Ts_ 初 + T 补 +0.5℃, every 5min increases by 0.5℃, that is, Ts(n+1)=Ts(n)+0.5℃, until Ts(n+1)=Ts_ 舒 + T 补 , n is a natural number≥1. / / Recursive incremental function is adopted to prevent the large set temperature change amplitude caused by reaching the set temperature compressor shutdown phenomenon when the stage is converted. When E≤-0.5℃ and lasts for 30min (from Ts(n+1)=Ts_ comfort+Tsupplement), into the healthy comfort stage of dehumidification.

[0130] Healthy comfort stage of dehumidification: Ts(1)=Ts_ 舒 + T 补 +0.5℃, every 5min increases by 0.5℃, that is, Ts(n+1)=Ts(n)+0.5℃, until Ts(n+1)=Ts_ 节 + T 补 , n is a natural number≥1. / / Recursive incremental function is adopted to prevent the large set temperature change amplitude caused by reaching the set temperature compressor shutdown phenomenon when the stage is converted.

[0131] 2 If Tin≤28℃, and Rh<65%, into the supply air mode.

[0132] 3 If Tin>28℃, into the refrigeration mode. Look up table 2 and look up table 3 to obtain Ts_ 初 , Ts_ 舒 , Ts_ 节 (Wherein Ts_节 = Ts 舒 + T

[0133] Refrigeration initial comfort stage: Ts = Ts 初 + T 补 / / (display screen Ts 初 + T 补 and TMS comfort mode running stage change icon), when E≤0.5℃ and accumulates 5min or (Tin-(Ts 初 + T 补 )≤-0.5℃ and accumulates 15min, enters refrigeration stable comfort stage / / (Tin-(Ts 初 + T 补 )≤-0.5℃ means that the initial comfort stage set temperature is not reached, but the stable comfort stage set temperature is reached.

[0134] Refrigeration stable comfort stage: Ts(1) = Ts 初 + T 补 +0.5℃, every 5min increases by 0.5℃, that is, Ts(n+1) = Ts(n)+0.5℃, until Ts(n+1) = Ts 舒 + T 补 , n is a natural number≥1. / / Recursive incremental function is used to prevent the set temperature change amplitude from being large when the stage is converted, causing the compressor to stop when the set temperature is reached. 舒 + T 补 , enters refrigeration healthy comfort stage.

[0135] Refrigeration healthy comfort stage: Ts(1) = Ts 舒 + T 补 +0.5℃, every 5min increases by 0.5℃, that is, Ts(n+1) = Ts(n)+0.5℃, until Ts(n+1) = Ts 节 + T 补 , n is a natural number≥1. / / Recursive incremental function is used to prevent the set temperature change amplitude from being large when the stage is converted, causing the compressor to stop when the set temperature is reached.

[0136] In some embodiments, the indoor fan running state, the compressor running state and frequency, the electric heating running state, the horizontal air deflector, the vertical air deflector, etc. in the initial comfort, stable comfort, and healthy comfort stages of each mode are shown in Table 4.

[0137] Table 4 Air conditioner component operation control requirement table

[0138]

[0139] In some embodiments, according to the humidity control and humidity retention theory that "as the indoor environment humidity increases, the air conditioner dehumidification amount peak has a trend of gradually moving to the indoor unit high wind speed side, the critical point of dry and wet working conditions is different at different wind speeds, the larger the wind speed, the higher the inlet relative humidity to enter the wet working condition; the smaller the wind speed, the lower the inlet relative humidity to enter the wet working condition" (such as Table 5, Figure 13 ), an indoor fan comfort control method is proposed, which can better control and keep the indoor environment relative humidity in the range of human comfortable humidity.

[0140] Table 5 Absolute dehumidification amount of 4h and indoor unit speed relationship

[0141] Absolute dehumidification amount for 4h 700 rpm 870 rpm 1000 rpm 1250 rpm Indoor 27°C / 15.8°C (30% RH) 3.90 kg 3.24 kg 3.01 kg 2.94 kg Indoor 27°C / 19°C (47% RH) 3.68 kg 4.51 kg 4.79 kg 4.11 kg Indoor 27°C / 21.2°C (60% RH) 4.21 kg 5.45 kg 4.66 kg 4.70 kg

[0142] Based on the above humidity control and humidity retention theory, an indoor fan comfort control method is proposed, which can better control and keep the indoor environment relative humidity in the range of human comfortable humidity. Referring to Figure 14 The indoor fan comfort control method of the air conditioner when the operation mode is the cooling mode is described.

[0143] Step S11, the air conditioner starts the TMS function. Step S12, the indoor environment temperature Tin, the outdoor environment temperature Tout, the indoor environment relative humidity Rh and the indoor instantaneous sampling relative humidity Rhi are obtained.

[0144] Step S13, according to the indoor environment temperature Tin, the outdoor environment temperature Tout and the indoor environment relative humidity Rh, it is determined that the air conditioner enters the cooling or dehumidification mode.

[0145] Step S14, the air conditioner enters the cooling mode. Step S15, the indoor fan speed is controlled.

[0146] Step S16, it is judged whether the set temperature difference E is greater than the first set temperature such as 2℃, if yes, step S17 is executed; if no, step S18 is executed.

[0147] Step S17, the indoor fan is controlled to run at the first wind baffle wind speed. Step S18, the indoor fan is controlled to run at the second wind baffle wind speed. Step S19, it is judged whether the set temperature difference E is less than or equal to the first set temperature such as 2℃, if yes, step S18 is executed; if no, step S17 is executed.

[0148] S20, it is judged whether the first temperature difference value is greater than or equal to -2℃ and less than or equal to 2℃ within a preset time, if yes, step S21 is executed; if no, step S18 is executed.

[0149] Step S21, judging whether the second temperature difference is greater than or equal to -6 and less than 6, if yes, executing step S20; if no, executing step S22.

[0150] Step S22, judging whether the second temperature difference is greater than 6, if yes, executing step S23; if no, executing step S24.

[0151] Step S23, controlling the indoor fan to operate at the third wind speed.

[0152] Step S24, judging whether the second temperature difference is less than -6, if yes, executing step S25, if no, executing step S21.

[0153] Step S25, controlling the indoor fan to operate at the fourth wind speed.

[0154] Through the above steps S11-S25, the energy consumption of the air conditioner can be reduced while ensuring the use comfort of the user.

[0155] The TMS comfort mode based on the PMV model of the embodiment of the present disclosure is described above.

[0156] In summary, the air conditioner of the embodiment of the present disclosure can set a user individual comfort mode and a TMS comfort mode, wherein, since the PMV model is an average thermal sensation prediction model based on the general population, the influence of individual differences is weakened, in order to meet the personalized and differentiated thermal comfort needs of household air conditioners, especially individual users in the family, an artificial intelligence technology based on big data is used to establish a user individual thermal sensation decision tree model, to self-learn the user thermal sensation change rule, accurately identify the individual thermal comfort needs of the user, and perform personalized thermal comfort control, to meet the differentiated and personalized comfort control requirements of different user individuals. It also makes up for the shortcomings of the PMV prediction comfort model based on the general population, which weakens the individual differences, so that the air conditioner not only meets the comfort needs of the general population, but also can realize the personalized comfort needs of individual family users.

[0157] The user individual thermal sensation decision tree model of the embodiment of the present disclosure is based on a machine learning method, and its accuracy depends largely on the amount of data involved in the training, so in actual application, as the amount of data continues to increase, its accuracy will also improve. The thermal sensation prediction model based on skin temperature can achieve full automation control without the need for personnel to adjust parameters in ideal conditions.

[0158] In addition, the terminology used in the description presented above is intended to be interpreted in a descriptive sense, purely for the purpose of providing a clear and comprehensive understanding of the described embodiments. However, the above description is presented in terms of embodiments that are presented as examples. The described embodiments are presented in terms of a particular sequence of steps; however, this should not be interpreted in a limiting manner. Many modifications and variations to the described embodiments can be made in light of the above teachings. It is, therefore, to be understood that a variety of modifications, substitutions, and changes can be made to the described embodiments without departing from the scope of the disclosure. Although the described embodiments have been presented in terms of specific examples, it is not intended that the described embodiments be limited to the specific examples presented. The described embodiments are meant to be exemplary and are not intended as limiting.

Claims

1. An air conditioner, characterized in that, include: A human body temperature detection device, wherein the human body temperature detection device is used to detect the facial temperature of a target user; An indoor temperature detection device, wherein the indoor temperature detection device is used to detect indoor ambient temperature; A controller, connected to the human body temperature detection device and the indoor temperature detection device, is configured to: The facial temperature and the indoor ambient temperature are input into a user-specific temperature and coldness decision tree model. The user's temperature and coldness state is determined based on the output value of the model. The currently set target temperature is adjusted according to the temperature and coldness state, and the air conditioner is controlled to operate based on the adjusted target temperature. The user-specific temperature and coldness decision tree model is configured with at least six layers of temperature decision condition sets, which constitute multiple temperature determination branches. Specifically, the first layer includes a decision condition based on one facial temperature; the second layer includes a decision condition based on two facial temperatures; the third layer includes a decision condition based on two facial temperatures and two indoor ambient temperatures; the fourth layer includes a decision condition based on three facial temperatures and five indoor ambient temperatures; the fifth layer includes a decision condition based on six facial temperatures and five indoor ambient temperatures; and the sixth layer includes a decision condition based on eight facial temperatures and seven indoor ambient temperatures. Specifically, when the controller determines the temperature and cold sensation state of the target user, it compares the facial temperature and the indoor ambient temperature with the multiple temperature determination branches composed of at least six layers of temperature decision condition sets in the user's individual temperature and cold sensation decision tree model to determine the target temperature determination branch, obtain the output value of the user's individual temperature and cold sensation decision tree model corresponding to the target temperature determination branch, and take the temperature and cold sensation state corresponding to the output value as the temperature and cold sensation state of the target user. The controller is configured as follows: Determine whether the facial temperature T is met. 面部 ≤T 面部设定1 ; If T is satisfied 室内 ≤T 室内设定1 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定2 , among which, T 面部设定2 <T 面部设定1 ; If T is satisfied 面部 ≤T 面部设定2 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定1 ; If T is satisfied 室内 ≤T 室内设定1 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定3 , among which, T 面部设定3 <T 面部设定2 ; If T is satisfied 面部 ≤T 面部设定3 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定2 , among which, T 室内设定2 < T 室内设定1 ; If T is satisfied 室内 ≤T 室内设定2 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定3 , among which, T 室内设定3 < T 室内设定2 ; If T is satisfied 室内 ≤T 室内设定3 If the target temperature determination branch is determined to be the first temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the first temperature determination branch is obtained as a slightly cold output value, then the target user's temperature and coldness state is slightly cold. If T is not satisfied 室内 ≤T 室内设定3 If the target temperature determination branch is determined to be the second temperature determination branch, and the output value of the second temperature determination branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a slightly cold output value, then the target user's temperature and coldness state is slightly cold.

2. The air conditioner according to claim 1, characterized in that, The controller is configured to: If T is not satisfied 室内 ≤T 室内设定2 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定4 , among which, T 室内设定2 < T 室内设定4 ; If T is satisfied 室内 ≤T 室内设定4 If the target temperature determination branch is determined to be the third temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the third temperature determination branch is obtained as a neutral output value, then the temperature and coldness state of the target user is neutral. If T is not satisfied 室内 ≤T 室内设定4 If the target temperature determination branch is determined to be the fourth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the fourth temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral.

3. The air conditioner according to claim 1, characterized in that, The controller is configured to: If T is not satisfied 面部 ≤T 面部设定3 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定5 , among which, T 室内设定1 < T 室内设定5 ; If T is satisfied 室内 ≤T 室内设定5 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定6 , among which, T 室内设定6 < T 室内设定5 ; If T is satisfied 室内 ≤T 室内设定6 If the target temperature determination branch is determined to be the fifth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the fifth temperature determination branch is obtained as a neutral output value, then the temperature and coldness state of the target user is neutral. If T is not satisfied 室内 ≤T 室内设定6 If the target temperature determination branch is determined to be the sixth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the sixth temperature determination branch is obtained as a slightly cold output value, then the target user's temperature and coldness state is slightly cold.

4. The air conditioner according to claim 3, characterized in that, The controller is configured to: If T is not satisfied 室内 ≤T 室内设定5 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定4 , among which, T 面部设定3 < T 面部设定4 ; If T is satisfied 面部 ≤T 面部设定4 If the target temperature determination branch is determined to be the seventh temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the seventh temperature determination branch is obtained as a neutral output value, then the temperature and coldness state of the target user is neutral. If T is not satisfied 面部 ≤T 面部设定4 If the target temperature determination branch is determined to be the eighth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the eighth temperature determination branch is obtained as a slightly cold output value, then the target user's temperature and coldness state is slightly cold.

5. The air conditioner according to claim 1, characterized in that, The controller is configured to: If T is not satisfied 室内 ≤T 室内设定1 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定5 ; If T is not satisfied 面部 ≤T 面部设定5 If the target temperature determination branch is determined to be the ninth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the ninth temperature determination branch is obtained as a slightly hot output value, then the target user's temperature and coldness state is slightly hot. If T is satisfied 面部 ≤T 面部设定5 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定6 , among which, T 面部设定6 <T 面部设定5 ; If T is satisfied 面部 ≤T 面部设定6 If the target temperature determination branch is determined to be the tenth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the tenth temperature determination branch is obtained as a neutral output value, then the temperature and coldness state of the target user is neutral. If T is not satisfied 面部 ≤T 面部设定6 If the target temperature determination branch is determined to be the eleventh temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the eleventh temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral.

6. The air conditioner according to claim 1, characterized in that, The controller is configured to: If T is not satisfied 面部 ≤T 面部设定2 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定7 ; If T is satisfied 室内 ≤T 室内设定7 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定8 , among which, T 室内设定8 < T 室内设定7 ; If T is satisfied 室内 ≤T 室内设定8 If the target temperature determination branch is determined to be the twelfth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the twelfth temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral. If T is not satisfied 室内 ≤T 室内设定8 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定7 , among which, T 面部设定2 < T 面部设定7 ; If T is satisfied 面部 ≤T 面部设定7 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定8 , among which, T 面部设定8 <T 面部设定7 ; If T is satisfied 面部 ≤T 面部设定8 If the target temperature determination branch is determined to be the thirteenth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the thirteenth temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral. If T is not satisfied 面部 ≤T 面部设定8 If the target temperature determination branch is determined to be the fourteenth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the fourteenth temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral.

7. The air conditioner according to claim 6, characterized in that, The controller is configured to: If T is not satisfied 面部 ≤T 面部设定7 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定9 , among which, T 室内设定8 < T 室内设定9 ; If T is satisfied 室内 ≤T 室内设定9 If the target temperature determination branch is determined to be the fifteenth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the fifteenth temperature determination branch is obtained as a slightly cold output value, then the target user's temperature and coldness state is slightly cold. If T is not satisfied 室内 ≤T 室内设定9 If the target temperature determination branch is determined to be the sixteenth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the sixteenth temperature determination branch is obtained as a slightly cold output value, then the target user's temperature and coldness state is slightly cold.

8. The air conditioner according to claim 6, characterized in that, The controller is configured to: If T is not satisfied 室内 ≤T 室内设定7 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定10 , among which, T 室内设定7 < T 室内设定10 ; If T is satisfied 室内 ≤T 室内设定10 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定9 , among which, T 面部设定2 <T 面部设定9 ; If T is satisfied 面部 ≤T 面部设定9 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定10 , among which, T 面部设定10 < T 面部设定9 ; If T is satisfied 面部 ≤T 面部设定10 If the target temperature determination branch is determined to be the seventeenth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the seventeenth temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral. If T is not satisfied 面部 ≤T 面部设定10 If the target temperature determination branch is determined to be the eighteenth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the eighteenth temperature determination branch is obtained as a slightly hot output value, then the target user's temperature and coldness state is slightly hot.

9. The air conditioner according to claim 8, characterized in that, The controller is configured to: If T is not satisfied 面部 ≤T 面部设定9 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定11 , among which, T 面部设定9 < T 面部设定11 ; If T is satisfied 面部 ≤T 面部设定11 If the target temperature determination branch is determined to be the nineteenth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the nineteenth temperature determination branch is obtained as a neutral output value, then the temperature and coldness state of the target user is neutral. If T is not satisfied 面部 ≤T 面部设定11 If the target temperature determination branch is determined to be the twentieth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the twentieth temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral.

10. The air conditioner according to claim 8, characterized in that, The controller is configured to: If T is not satisfied 室内 ≤T 室内设定10 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定12 , among which, T 面部设定2 < T 面部设定12 ; If T is not satisfied 面部 ≤T 面部设定12 If the target temperature determination branch is determined to be the twenty-first temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the twenty-first temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral. If T is satisfied 面部 ≤T 面部设定12 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定13 , among which, T 面部设定13 < T 面部设定12 ; If T is satisfied 面部 ≤T 面部设定13 If the target temperature determination branch is determined to be the twenty-second temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the twenty-second temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral. If T is not satisfied 面部 ≤T 面部设定13 If the target temperature determination branch is determined to be the twenty-third temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the twenty-third temperature determination branch is obtained as a slightly hot output value, then the target user's temperature and coldness state is slightly hot.

11. The air conditioner according to claim 1, characterized in that, The controller is configured to: If T is not satisfied 面部 ≤T 面部设定1 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定14 , among which, T 面部设定1 < T 面部设定14 ; If T is satisfied 面部 ≤T 面部设定12 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定15 , among which, T 面部设定15 < T 面部设定14 ; If T is satisfied 室内 ≤T 室内设定15 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定11 ; If T is satisfied 室内 ≤T 室内设定11 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定12 , among which, T 室内设定12 < T 室内设定11 ; If T is satisfied 室内 ≤T 室内设定12 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定13 , among which, T 室内设定13 < T 室内设定12 ; If T is satisfied 室内 ≤T 室内设定13 If the target temperature determination branch is determined to be the twenty-fourth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the twenty-fourth temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral. If T is not satisfied 室内 ≤T 室内设定13 If the target temperature determination branch is determined to be the twenty-fifth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the twenty-fifth temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral.

12. The air conditioner according to claim 11, characterized in that, The controller is configured to: If T is not satisfied 室内 ≤T 室内设定12 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定16 , among which, T 面部设定16 < T 面部设定15 ; If T is satisfied 面部 ≤T 面部设定16 If the target temperature determination branch is determined to be the twenty-sixth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the twenty-sixth temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral. If T is not satisfied 面部 ≤T 面部设定16 If the target temperature determination branch is determined to be the twenty-seventh temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the twenty-seventh temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral.

13. The air conditioner according to claim 11, characterized in that, The controller is configured to: If T is not satisfied 室内 ≤T 室内设定11 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定14 , among which, T 室内设定11 < T 室内设定14 ; If T is satisfied 室内 ≤T 室内设定14 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定15 , among which, T 室内设定15 < T 室内设定14 ; If T is satisfied 室内 ≤T 室内设定15 If the target temperature determination branch is determined to be the twenty-eighth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the twenty-eighth temperature determination branch is obtained as a slightly hot output value, then the target user's temperature and coldness state is slightly hot. If T is not satisfied 室内 ≤T 室内设定15 If the target temperature determination branch is determined to be the twenty-ninth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the twenty-ninth temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral.

14. The air conditioner according to claim 13, characterized in that, The controller is configured to: If T is not satisfied 室内 ≤T 室内设定14 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定17 , among which, T 面部设定17 < T 面部设定15 ; If T is satisfied 面部 ≤T 面部设定17 If the target temperature determination branch is determined to be the thirtieth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the thirtieth temperature determination branch is obtained as a slightly hot output value, then the target user's temperature and coldness state is slightly hot. If T is not satisfied 面部 ≤T 面部设定17 If the target temperature determination branch is determined to be the thirty-first temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the thirty-first temperature determination branch is obtained as a slightly hot output value, then the target user's temperature and coldness state is slightly hot.

15. The air conditioner according to claim 11, characterized in that, The controller is configured to: If T is not satisfied 面部 ≤T 面部设定15 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定16 ; If T is satisfied 室内 ≤T 室内设定16 If the target temperature determination branch is determined to be the thirty-second temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the thirty-second temperature determination branch is obtained as a neutral output value, then the temperature and coldness state of the target user is neutral. If T is not satisfied 室内 ≤T 室内设定16 If the target temperature determination branch is determined to be the thirty-third temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the thirty-third temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral.

16. The air conditioner according to claim 11, characterized in that, The controller is configured to: If T is not satisfied 面部 ≤T 面部设定14 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定18 , among which, T 面部设定14 < T 面部设定18 ; If T is satisfied 面部 ≤T 面部设定18 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定17 ; If T is satisfied 室内 ≤T 室内设定17 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定19 , among which, T 面部设定19 < T 面部设定18 ; If T is satisfied 面部 ≤T 面部设定19 If the target temperature determination branch is determined to be the thirty-fourth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the thirty-fourth temperature determination branch is obtained as a cold output value, then the target user's temperature and coldness state is cold. If T is not satisfied 面部 ≤T 面部设定19 If the target temperature determination branch is determined to be the thirty-fifth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the thirty-fifth temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral.

17. The air conditioner according to claim 16, characterized in that, The controller is configured to: If T is not satisfied 室内 ≤T 室内设定17 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定20 , among which, T 面部设定20 < T 面部设定18 ; If T is satisfied 面部 ≤T 面部设定20 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定18 , among which, T 室内设定17 < T 室内设定18 ; If T is satisfied 室内 ≤T 室内设定18 If the target temperature determination branch is determined to be the thirty-sixth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the thirty-sixth temperature determination branch is obtained as a slightly hot output value, then the target user's temperature and coldness state is slightly hot. If T is not satisfied 室内 ≤T 室内设定18 If the target temperature determination branch is determined to be the thirty-seventh temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the thirty-seventh temperature determination branch is obtained as a slightly hot output value, then the target user's temperature and coldness state is slightly hot.

18. The air conditioner according to claim 17, characterized in that, The controller is configured to: If T is not satisfied 面部 ≤T 面部设定20 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定21 , among which, T 面部设定20 < T 面部设定21 ; If T is satisfied 面部 ≤T 面部设定21 If the target temperature determination branch is determined to be the thirty-eighth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the thirty-eighth temperature determination branch is obtained as a slightly hot output value, then the target user's temperature and coldness state is slightly hot. If T is not satisfied 面部 ≤T 面部设定21 If the target temperature determination branch is determined to be the thirty-ninth temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the thirty-ninth temperature determination branch is obtained as a slightly hot output value, then the target user's temperature and coldness state is slightly hot.

19. The air conditioner according to claim 17, characterized in that, The controller is configured to: If T is not satisfied 面部 ≤T 面部设定18 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定22 , among which, T 面部设定18 < T 面部设定22 ; If T is satisfied 面部 ≤T 面部设定22 If the target temperature determination branch is determined to be the 40th temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the 40th temperature determination branch is obtained as a neutral output value, then the temperature and coldness state of the target user is neutral. If T is not satisfied 面部 ≤T 面部设定22 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定19 ; If T is satisfied 室内 ≤T 室内设定19 If the target temperature determination branch is determined to be the forty-first temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the forty-first temperature determination branch is obtained as a slightly hot output value, then the target user's temperature and coldness state is slightly hot. If T is not satisfied 室内 ≤T 室内设定19 If the target temperature determination branch is determined to be the forty-second temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the forty-second temperature determination branch is obtained as a neutral output value, then the target user's temperature and coldness state is neutral.

20. The air conditioner according to any one of claims 1-19, characterized in that, The controller is also configured to: If the target user's perceived temperature is determined to be on the colder side, then the currently set target temperature is increased. If the target user's temperature sensitivity is determined to be neutral, then the currently set target temperature is maintained. If the target user's perceived temperature is determined to be on the warmer side, then the currently set target temperature is lowered.

21. The air conditioner according to any one of claims 1-19, characterized in that, The controller is also configured to: If the air conditioner is in heating mode and the target user's temperature and cooling sensation is determined to be too cold after a preset number of cycles, the indoor fan speed of the air conditioner will be increased. If the air conditioner is in heating mode and the target user's temperature and cooling sensation is determined to be too hot after the preset number of cycles, then the indoor fan speed of the air conditioner will be reduced. If the air conditioner is in cooling mode and the target user's temperature and cold sensation are determined to be too cold after the preset number of consecutive cycles, the indoor fan speed of the air conditioner will be reduced. If the air conditioner is in cooling mode and the target user's perceived temperature is determined to be too hot after a preset number of cycles, then the indoor fan speed of the air conditioner will be increased.

22. The air conditioner according to claim 1, characterized in that, The controller is also configured to: The facial temperature and the indoor ambient temperature are periodically input into the user's individual temperature and coldness decision tree model to obtain a preset number of output values. The preset number of output values ​​are statistically analyzed and classified, and the temperature and coldness state corresponding to the output value in the category containing the most output values ​​is taken as the temperature and coldness state of the target user.

23. A control method for an air conditioner, characterized in that, include: It receives the target user's facial temperature and the indoor ambient temperature; The facial temperature and the indoor ambient temperature are input into the user's individual temperature and coldness decision tree model. The user's individual temperature and coldness decision tree model is configured with at least six layers of temperature decision condition sets, which constitute multiple temperature determination branches. The first layer of temperature decision condition set includes: a decision condition based on one facial temperature; the second layer of temperature decision condition set includes: a decision condition based on two facial temperatures; the third layer of temperature decision condition set includes: a decision condition based on two facial temperatures and two indoor ambient temperatures; the fourth layer of temperature decision condition set includes: a decision condition based on three facial temperatures and five indoor ambient temperatures; the fifth layer of temperature decision condition set includes: a decision condition based on six facial temperatures and five indoor ambient temperatures; and the sixth layer of temperature decision condition set includes: a decision condition based on eight facial temperatures and seven indoor ambient temperatures. The target user's temperature / coolness status is determined based on the output value of the individual user temperature / coolness decision tree model. Adjust the current target temperature according to the temperature and coolness sensation, and control the operation of the air conditioner according to the adjusted target temperature; The step of determining the temperature and cold sensation state of the target user includes: comparing the facial temperature and the indoor ambient temperature with the plurality of temperature determination branches consisting of at least six layers of temperature decision condition sets in the user's individual temperature and cold sensation decision tree model to determine the target temperature determination branch, obtaining the output value of the user's individual temperature and cold sensation decision tree model corresponding to the target temperature determination branch, and taking the temperature and cold sensation state corresponding to the output value as the temperature and cold sensation state of the target user. The step of determining the target user's temperature / coldness state based on the output value of the user's individual temperature / coldness decision tree model includes: Determine whether the facial temperature T is met. 面部 ≤T 面部设定1 ; If T is satisfied 室内 ≤T 室内设定1 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定2 , among which, T 面部设定2 <T 面部设定1 ; If T is satisfied 面部 ≤T 面部设定2 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定1 ; If T is satisfied 室内 ≤T 室内设定1 Then, it is further determined whether the facial temperature T is satisfied. 面部 ≤T 面部设定3 , among which, T 面部设定3 <T 面部设定2 ; If T is satisfied 面部 ≤T 面部设定3 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定2 , among which, T 室内设定2 < T 室内设定1 ; If T is satisfied 室内 ≤T 室内设定2 Then, it is further determined whether the indoor ambient temperature T is satisfied. 室内 ≤T 室内设定3 , among which, T 室内设定3 < T 室内设定2 ; If T is satisfied 室内 ≤T 室内设定3 If the target temperature determination branch is determined to be the first temperature determination branch, and the output value of the user's individual temperature and coldness decision tree model corresponding to the first temperature determination branch is obtained as a slightly cold output value, then the target user's temperature and coldness state is slightly cold. If T is not satisfied 室内 ≤T 室内设定3 If the target temperature determination branch is determined to be the second temperature determination branch, and the output value of the second temperature determination branch corresponding to the user's individual temperature and coldness decision tree model is obtained as a slightly cold output value, then the target user's temperature and coldness state is slightly cold.

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