Air conditioner and control method thereof

Abstract

The invention 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, and 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 body temperature and cold feeling decision tree model, determine the temperature and cold feeling state of a target user according to an output value of the user individual body temperature and cold feeling decision tree model, adjust the current set target temperature according to the temperature and cold feeling state and control the air conditioner to operate according to the adjusted target temperature. Wherein at least six layers of temperature decision condition sets configured in the user individual body temperature cold feeling decision tree model form a plurality of temperature judgment branches. According to the air conditioner and the control method thereof, the comfort requirement of an individual user can be met, and the comfort of the air conditioner is improved.

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 thereof. Background Art

[0002] An air conditioner is an electrical product widely used in people's lives. The air conditioner plays an important role in regulating the indoor temperature, can provide users with a healthy and comfortable indoor environment, and meet the normal work, life and learning needs.

[0003] Currently, the control comfort is usually designed by setting a single temperature index, or by using a specified single temperature index and a specified single humidity index. Thus, it is usually to meet the comfort needs of the majority of groups.

[0004] However, due to the differences in individual comfort requirements, the adjustment of a single temperature and a single humidity index can no longer effectively meet people's requirements for comfort, and cannot meet the differential and personalized thermal comfort control requirements of different users. Summary of the Invention

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

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

[0007] To achieve the above object, an air conditioner according to an embodiment of the first aspect of the present disclosure includes: a human body temperature detection device configured to detect the facial temperature of a target user; an indoor temperature detection device configured to detect the indoor environmental temperature; and a controller connected to the human body temperature detection device and the indoor temperature detection device, the controller being configured to: input the facial temperature and the indoor environmental temperature into a user individual temperature-cold feeling decision tree model, determine the temperature-cold feeling state of the target user according to the output value of the user individual temperature-cold feeling decision tree model, adjust the current set target temperature according to the temperature-cold feeling state, and control the operation of the air conditioner according to the adjusted target temperature, wherein at least six layers of temperature decision condition sets are configured in the user individual temperature-cold feeling decision tree model, and the at least six layers of temperature decision condition sets form a plurality of temperature determination branches. Among them, the first layer of temperature decision condition set includes: a decision condition based on the indoor environmental temperature; the second layer of temperature decision condition set includes: a decision condition based on the facial temperature and the indoor environmental temperature; the third layer of temperature decision condition set includes: a decision condition based on the indoor environmental temperature; the fourth layer of temperature decision condition set includes: a decision condition based on three facial temperatures and five indoor environmental temperatures; the fifth layer of temperature decision condition set includes: a decision condition based on six facial temperatures and seven indoor environmental temperatures; and the sixth layer of temperature decision condition set includes: a decision condition based on sixteen facial temperatures and six indoor environmental temperatures.

[0008] The control method of an air conditioner according to an embodiment of the second aspect of the present disclosure includes: receiving the facial temperature of a target user and the indoor environmental temperature; inputting the facial temperature and the indoor environmental temperature into a user individual thermal-cold sensation decision tree model, determining the thermal-cold sensation state of the target user according to the output value of the user individual thermal-cold sensation decision tree model, adjusting the current set target temperature according to the thermal-cold sensation state, and controlling the operation of the air conditioner according to the adjusted target temperature, wherein at least six layers of temperature decision condition sets are configured in the user individual thermal-cold sensation decision tree model, and the at least six layers of temperature decision condition sets form a plurality of temperature determination branches. Among them, the first layer of temperature decision condition set includes: decision conditions based on the indoor environmental temperature, the second layer of temperature decision condition set includes: decision conditions based on the facial temperature and the indoor environmental temperature, the third layer of temperature decision condition set includes: decision conditions based on the indoor environmental temperature, the fourth layer of temperature decision condition set includes: decision conditions based on three facial temperatures and five indoor environmental temperatures, the fifth layer of temperature decision condition set includes: decision conditions based on six facial temperatures and seven indoor environmental temperatures, and the sixth layer of temperature decision condition set includes: decision conditions based on sixteen facial temperatures and six indoor environmental temperatures; determining the thermal-cold sensation state of the target user according to the output value of the user individual thermal-cold sensation decision tree model; adjusting the current set target temperature according to the thermal-cold sensation state, and controlling the operation of the air conditioner according to the adjusted target temperature.

[0009] The air conditioner and its control method according to the embodiments of the present disclosure can make up for the deficiency that the PMV (Predicted Mean Vote) prediction comfort model based on the general population weakens individual differences by using a user individual thermal-cold sensation decision tree model established based on big data and artificial intelligence technology. Moreover, not only considering the facial temperature of the user individual can experience the current thermal-cold sensation of the user, but also considering that the indoor environmental temperature will also affect the user's thermal-cold experience. Therefore, the air conditioner inputs the facial temperature and the indoor environmental temperature into the user individual thermal-cold sensation decision tree model, so as to meet the thermal-cold sensation comfort of the target user individual, improve the personalized and differentiated needs of the user individual, and improve the comfort of the air conditioner.

[0010] Additional aspects and advantages of the present disclosure will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present disclosure. Description of the Drawings

[0011] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a proportional limitation, and among them:

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

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

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

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

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

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

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

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

[0020] Figure 9 It is a flowchart for running a user's individual comfort mode according to an embodiment of the present disclosure;

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

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

[0023] Figure 12 It is a flowchart of the control method for the TMS comfort mode according to an embodiment of the present disclosure;

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

[0025] Figure 14 It is a method for controlling the comfort of an indoor fan when the operating mode of the air conditioner is the refrigeration mode according to an embodiment of the present disclosure. Detailed implementation manners

[0026] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are only for reference and explanation, and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to give a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present disclosure.

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

[0028] The compressor compresses the 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 liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a 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 using the latent heat of evaporation of the refrigerant to perform a heat exchange with the material to be cooled. Throughout the cycle, the air conditioner can adjust the temperature of the indoor space.

[0030] The outdoor unit of the air conditioner refers to the part 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 condensers or evaporators. When the indoor heat exchanger serves as a condenser, the air conditioner serves as a heater in the heating mode. When the indoor heat exchanger serves as an evaporator, the air conditioner serves as a cooler in the cooling mode.

[0032] In order to improve the individual comfort of users, the embodiments of the present disclosure improve the performance of the air conditioner and propose an air conditioner and its control method, which can meet the comfort requirements of different users.

[0033] Next, refer to Figures 2 - 14Describe an air conditioner according to an embodiment of the present disclosure.

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

[0035] Among them, the human body temperature detection device 10 is used to detect the facial temperature of the target user. In the embodiment, the human body temperature detection device 10 can adopt 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 used to detect the indoor environmental temperature. Specifically, a temperature sensor can be set on the indoor unit housing to collect the indoor air temperature, that is, the indoor environmental temperature, or a temperature sensor can be set at other positions indoors, or the indoor environmental temperature can be detected by an auxiliary device such as a smart robot, and the data of the collected indoor environmental temperature is sent to the controller of the air conditioner.

[0037] The controller 30 is connected to the human body temperature detection device 10 and the indoor temperature detection device 20. A user individual temperature and cold feeling decision tree model can be pre-stored in the controller 30. This model is pre-trained, generated, detected, and stored in the controller 30, and the controller 30 can call this model at any time when performing relevant decisions.

[0038] In a specific embodiment, the facial temperature includes the 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 duration, calculate the average forehead temperature, average eye temperature, average nose temperature, and average cheek temperature within the preset duration, and perform weighted calculation on the average forehead temperature, average eye temperature, average nose temperature, and average cheek temperature to obtain the facial average temperature, where the weight of the average forehead temperature > the weight of the average eye temperature > the weight of the average nose temperature > the weight of the average cheek temperature.

[0039] The following describes the user individual temperature and cold feeling decision tree model.

[0040] In the embodiments of the present disclosure, the user individual temperature and cold sensation decision tree model is a user individual temperature and cold sensation prediction and recognition model established based on human physiological parameters and environmental parameters through big data artificial intelligence technology for different thermal comfort requirements of individual users. It self-learns the variation law of the user's individual temperature and cold sensation, accurately identifies the thermal comfort requirements of individual users, and performs personalized thermal comfort control to meet the different and personalized thermal comfort control requirements of different individual users.

[0041] As Figure 3 shown, it is the modeling process of establishing a user individual temperature and cold sensation decision tree model based on big data artificial intelligence technology according to an embodiment of the present disclosure.

[0042] Specifically, first, data collection is carried out. Training data and tests can be collected in the laboratory through infrared devices. For example, skin temperatures such as facial temperatures of different populations including the elderly, children, men, women, etc. in different seasons can be collected. It can be understood that different populations can reflect different human thermal sensations, metabolic rates, clothing thermal resistances, and environmental states in different seasons.

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

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

[0045] Finally, the model is predicted, and the model predicts the test data to obtain the model accuracy rate. For example, in the embodiments of the present disclosure, the accuracy rate of the user individual temperature and cold sensation decision tree model adopted can reach more than 80%.

[0046] In the embodiment, the user individual temperature and cold sensation 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 and cold sensation decision tree model in the embodiments 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 form multiple temperature determination branches. Among them, the first layer of temperature decision condition set includes: decision conditions based on the indoor environmental temperature, the second layer of temperature decision condition set includes: decision conditions based on the facial temperature and the indoor environmental temperature, the third layer of temperature decision condition set includes: decision conditions based on the indoor environmental temperature, the fourth layer of temperature decision condition set includes: decision conditions based on three facial temperatures and five indoor environmental temperatures, the fifth layer of temperature decision condition set includes: decision conditions based on six facial temperatures and seven indoor environmental temperatures, and the sixth layer of temperature decision condition set includes: decision conditions based on sixteen facial temperatures and six indoor environmental temperatures. For example, Figures 4 - 7Schematic diagrams of parts of a user's individual temperature cold and heat sensation decision tree model according to an embodiment of the present disclosure. The model is shaped like a tree, with the left fork representing a true judgment and the right fork representing a false judgment. A series of judgments are made each time until there is no further forking, and then the final result is output. In some embodiments, the user's individual temperature cold and heat sensation decision tree model may include at least six layers of temperature decision condition sets and fifty-one temperature determination branches formed by at least six layers of temperature decision condition sets. Each temperature determination branch may have the same or different temperature decision conditions. Among them, each fork of the model performs an independent cold and heat sensation judgment, and each temperature determination branch can output a corresponding cold and heat sensation prediction result. The final value of the cold and heat sensation judgment, that is, the output value of the user's individual temperature cold and heat sensation decision tree model, can be -1 (cold bias), 0 (neutral), or 1 (hot bias). Therefore, the current cold and heat sensation state of the user can be judged according to the output value of the user's individual temperature cold and heat sensation decision tree model.

[0047] It can be understood that Figures 4 - 7 The shown user's individual temperature cold and heat sensation decision tree model is only an example of one model in the embodiments of the present disclosure. Other expected and applicable decision tree models can also be adopted based on the results of model training optimization and testing.

[0048] Furthermore, in the embodiments of the present disclosure, not only is it considered that the facial temperature of the user individual can reflect the current cold and heat sensation of the user, but also the indoor environment temperature is considered to affect the user's cold and heat experience. Therefore, considering the facial temperature and the indoor environment temperature comprehensively, the air conditioner 1 inputs the facial temperature and the indoor environment temperature into the user's individual temperature cold and heat sensation decision tree model, determines the cold and heat sensation state of the target user according to the output value of the user's individual temperature cold and heat sensation decision tree model, adjusts the current set target temperature according to the cold and heat sensation state, and controls the operation of the air conditioner according to the adjusted target temperature, so as to meet the cold and heat sensation comfort of the target user individual, improve the personalized and differentiated needs of the user individual, and improve the comfort of the air conditioner.

[0049] Among them, 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 control, a wired controller, or the air conditioner APP installed on a mobile intelligent device when starting, or it can also be the current temperature of the air conditioner when the user starts the user individual comfort mode. No specific limitation is made here.

[0050] The air conditioner 1 in the embodiments of the present disclosure can make up for the deficiency that the PMV prediction comfort model based on the general population weakens individual differences by using the user's individual temperature cold and heat sensation decision tree model established based on big data and artificial intelligence technology to adjust the target temperature, so that the air conditioner 1 can not only meet the comfort needs of the general population, but also realize the personalized comfort needs of individual household users.

[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, and the indoor temperature detection device 20 collects the indoor environmental temperature in real time. The controller 30 receives the temperature data and calls the user individual temperature-cold feeling decision tree model to compare the facial temperature and the indoor environmental temperature with the temperature decision conditions of each layer in the multiple temperature determination branches of the user individual temperature-cold feeling decision tree model to determine the target temperature determination branch. Among them, each temperature determination branch in the model is independently executed, and the output value corresponding to the target temperature determination branch of the user individual temperature-cold feeling decision tree model is obtained, and the temperature-cold feeling state corresponding to the output value is used as the temperature-cold feeling state of the target user. For example, when the output value is -1, it means the user feels cold; when the output value is 0, it means the user feels neither cold nor hot, that is, in a neutral state; when the output value is 1, it means the user feels hot. Then, the target temperature is adjusted according to the current temperature-cold feeling state of the user, and the compressor frequency, fan speed, air deflector direction, etc. of the air conditioner are adjusted according to the adjusted target temperature, so as to improve the user's comfort and meet the user's personalized comfort needs.

[0052] The following will refer to Figures 4 - 7 the user individual temperature-cold feeling decision tree model shown to illustrate the process of the controller 30 identifying the user's temperature-cold feeling state.

[0053] After the user enables the user individual comfort model, the controller 30 obtains the facial temperature represented by T 面部 and the indoor environmental temperature represented by T 室内 and inputs T 面部 and T 室内 into the user individual temperature-cold feeling decision tree model, such as Figures 4 - 7 the tree-shaped model, compares the temperature value with the temperature decision conditions in the model, and each temperature determination branch is independently executed until the output value of the model is obtained, and the current temperature-cold feeling state of the user is determined based on this output value.

[0054] As Figures 4 - 7 shown, each temperature determination branch will be described. Among them, in the user individual temperature-cold feeling decision tree model of the present disclosure embodiment, the indoor environmental temperature is used as the temperature decision condition of the first layer, the facial temperature and the indoor environmental temperature are used as the temperature decision conditions of the second layer, and different branches continue downwards to identify with different temperature determination conditions. Among them, in the embodiment, in the user individual temperature-cold feeling decision tree model, the facial temperature and the indoor environmental temperature have different temperatures under different decision conditions. For example, the threshold values of the decision conditions of the facial temperature are values between 31.76 °C and 37.17 °C, and the threshold values of the decision conditions of the indoor environmental temperature are values between 15.75 °C and 30.15 °C.

[0055] In some embodiments, as Figure 4As shown, the controller 30 is configured to: determine whether the indoor ambient temperature satisfies T 室内 ≤T 室内设定1 ; if T 室内 ≤T 室内设定1 is not satisfied, then enter the ① process, specifically refer to Figure 6 as shown. If T 室内 ≤T 室内设定1 is satisfied, then further determine whether the facial temperature T 面部 ≤T 面部设定1 is satisfied; if T 面部 ≤T 面部设定1 is satisfied, then further determine whether the indoor ambient temperature T 室内 ≤T 室内设定2 is satisfied, where T 室内设定2 <T 室内设定1 ; if T 面部 ≤T 面部设定1 is not satisfied, then enter the ② process, specifically refer to Figure 5 as shown. If T 室内 ≤T 室内设定2 is satisfied, then further determine whether the indoor ambient temperature T 室内 ≤T 室内设定3 is satisfied, where T 室内设定3 <T 室内设定2 ; if T 室内 ≤T 室内设定3 is satisfied, then further determine whether the indoor ambient temperature T 室内 ≤T 室内设定4 is satisfied, where T 室内设定4 <T 室内设定3 ; if T 室内 ≤T 室内设定4 is satisfied, then further determine whether the facial temperature T 面部 ≤T 面部设定2 is satisfied, where T 面部设定2 <T 面部设定1 ; if T 面部 ≤T 面部设定2 is satisfied, then determine that the target temperature determination branch is the first temperature determination branch, obtain the output value of the user's individual temperature cold and heat feeling decision tree model corresponding to the first temperature determination branch as the neutral output value, for example, the output is 0, then the cold and heat feeling 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 requirements of the user.

[0056] If T 面部 ≤T 面部设定2, it is determined that the target temperature determination branch is the second temperature determination branch, and the output value corresponding to the second temperature determination branch of the user's individual temperature cold feeling decision tree model is obtained as the cold-biased output value. For example, if the output is -1, the cold feeling state of the target user is cold-biased. That is, if the user currently feels that the temperature is on the low side, the current set target temperature is increased to increase the user's body feeling temperature and improve comfort.

[0057] If T is not satisfied 室内 ≤T 室内设定4 , it is further determined whether the facial temperature T 面部 ≤T 面部设定3 is satisfied, where T 面部设定2 <T 面部设定3 ; if T 面部 ≤T 面部设定3 is satisfied, it is determined that the target temperature determination branch is the third temperature determination branch, and the output value corresponding to the third temperature determination branch of the user's individual temperature cold feeling decision tree model is obtained as the cold-biased output value. For example, if the output is -1, the cold feeling state of the target user is cold-biased. That is, if the user currently feels that the temperature is on the low side, the current set target temperature is increased to increase the user's body feeling temperature and improve comfort.

[0058] If T is not satisfied 面部 ≤T 面部设定3 , it is determined that the target temperature determination branch is the fourth temperature determination branch, and the output value corresponding to the fourth temperature determination branch of the user's individual temperature cold feeling decision tree model is obtained as the neutral output value. For example, if the output is 0, the cold feeling 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 requirements of the user.

[0059] In some embodiments, as Figure 4 shown, the controller 30 is further configured to: if T is not satisfied 室内 ≤T 室内设定3 , it is further determined whether the indoor environmental temperature T 室内 ≤T 室内设定5 is satisfied, where T 室内设定3 <T 室内设定5 ; if T 室内 ≤T 室内设定5 , it is further determined whether the facial temperature T 面部 ≤T 面部设定4 is satisfied, where T 面部设定3 <T 面部设定4 ; if T 面部 ≤T 面部设定4, then determine that the target temperature determination branch is the fifth temperature determination branch, and obtain the output value corresponding to the fifth temperature determination branch of the user's individual temperature-cold feeling decision tree model as the cold-biased output value. For example, if the output is -1, then the temperature-cold feeling state of the target user is cold-biased. That is, if the user currently feels that the temperature is on the low side, then increase the currently set target temperature to increase the user's perceived temperature and improve comfort.

[0060] If T is not satisfied 面部 ≤T 面部设定4 , then determine that the target temperature determination branch is the sixth temperature determination branch, and obtain the output value corresponding to the sixth temperature determination branch of the user's individual temperature-cold feeling decision tree model as the neutral output value. For example, if the output is 0, then the temperature-cold feeling state of the target user is neutral. That is, if the user currently feels neither cold nor hot, at this time, the currently set target temperature can be maintained, that is, the air conditioner can currently meet the individual comfort requirements of the user.

[0061] If T is not satisfied 室内 ≤T 室内设定5 , then further determine whether the indoor environmental temperature T 室内 ≤T 室内设定6 is satisfied, where T 室内设定5 <T 室内设定6 ; if T 室内 ≤T 室内设定6 is satisfied, then determine that the target temperature determination branch is the seventh temperature determination branch, and obtain the output value corresponding to the seventh temperature determination branch of the user's individual temperature-cold feeling decision tree model as the cold-biased output value. For example, if the output is -1, then the temperature-cold feeling state of the target user is cold-biased. That is, if the user currently feels that the temperature is on the low side, then increase the currently set target temperature to increase the user's perceived temperature and improve comfort.

[0062] If T is not satisfied 室内 ≤T 室内设定6 , then determine that the target temperature determination branch is the eighth temperature determination branch, and obtain the output value corresponding to the eighth temperature determination branch of the user's individual temperature-cold feeling decision tree model as the cold-biased output value. For example, if the output is -1, then the temperature-cold feeling state of the target user is cold-biased. That is, if the user currently feels that the temperature is on the low side, then increase the currently set target temperature to increase the user's perceived temperature and improve comfort.

[0063] In some embodiments, as Figure 4 shown, the controller 30 is further configured to: if T 室内 ≤T 室内设定2 is not satisfied, then further determine whether the indoor environmental temperature T 室内 ≤T 室内设定7 is satisfied, where T 室内设定2 <T 室内设定7 ; if T 室内 ≤T 室内设定7, it is determined that the target temperature determination branch is the ninth temperature determination branch, and the output value corresponding to the ninth temperature determination branch of the user's individual temperature and cold feeling decision tree model is obtained as the neutral output value. For example, if the output is 0, the temperature and cold feeling 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 requirements of the user.

[0064] If it does not satisfy T 室内 ≤T 室内设定7 , it is further determined whether it satisfies the facial temperature T 面部 ≤T 面部设定5 , where T 面部设定3 <T 面部设定5 ; if it satisfies T 面部 ≤T 面部设定5 , it is determined that the target temperature determination branch is the tenth temperature determination branch, and the output value corresponding to the tenth temperature determination branch of the user's individual temperature and cold feeling decision tree model is obtained as the neutral output value. For example, if the output is 0, the temperature and cold feeling 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 requirements of the user.

[0065] If it does not satisfy T 面部 ≤T 面部设定5 , it is further determined whether it satisfies the facial temperature T 面部 ≤T 面部设定6 , where T 面部设定5 <T 面部设定6 ; if it satisfies T 面部 ≤T 面部设定6 , it is determined that the target temperature determination branch is the eleventh temperature determination branch, and the output value corresponding to the eleventh temperature determination branch of the user's individual temperature and cold feeling decision tree model is obtained as the cold-biased output value. For example, if the output is -1, the temperature and cold feeling state of the target user is cold-biased. That is, the user currently feels that the temperature is on the low side, so the current set target temperature is increased to increase the user's body feeling temperature and improve comfort.

[0066] If it does not satisfy T 面部 ≤T 面部设定6 , it is determined that the target temperature determination branch is the twelfth temperature determination branch, and the output value corresponding to the twelfth temperature determination branch of the user's individual temperature and cold feeling decision tree model is obtained as the neutral output value. For example, if the output is 0, the temperature and cold feeling 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 requirements of the user.

[0067] In some embodiments, as Figure 5 shown, the controller 30 is further configured to: if it does not satisfy T 面部 ≤T 面部设定1, then execute process ②, which specifically includes: determining whether the indoor environmental temperature T 室内 ≤T 室内设定8 , where T 室内设定2 <T 室内设定8 ; if T 室内 ≤T 室内设定8 is satisfied, then further determine whether the facial temperature T 面部 ≤T 面部设定7 , where T 面部设定1 <T 面部设定7 ; if T 面部 ≤T 面部设定7 is satisfied, then determine that the target temperature determination branch is the thirteenth temperature determination branch, and obtain the output value corresponding to the thirteenth temperature determination branch of the user's individual temperature cold feeling decision tree model as the neutral output value. For example, if the output is 0, the temperature cold feeling 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 requirements of the user.

[0068] If T 面部 ≤T 面部设定7 is not satisfied, then further determine whether the indoor environmental temperature T 室内 ≤T 室内设定9 , where T 室内设定9 <T 室内设定8 ; if T 室内 ≤T 室内设定9 is satisfied, then further determine whether the indoor environmental temperature T 室内 ≤T 室内设定10 , where T 室内设定10 <T 室内设定9 ; if T 室内 ≤T 室内设定10 is satisfied, then determine that the target temperature determination branch is the fourteenth temperature determination branch, and obtain the output value corresponding to the fourteenth temperature determination branch of the user's individual temperature cold feeling decision tree model as the neutral output value. For example, if the output is 0, the temperature cold feeling 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 requirements of the user.

[0069] If T 室内 ≤T 室内设定10 is not satisfied, then determine that the target temperature determination branch is the fifteenth temperature determination branch, and obtain the output value corresponding to the fifteenth temperature determination branch of the user's individual temperature cold feeling decision tree model as the cold-biased output value. For example, if the output is -1, the temperature cold feeling state of the target user is cold-biased. That is, the user currently feels that the temperature is on the low side, so the current set target temperature is increased to increase the user's body feeling temperature and improve comfort.

[0070] If T 室内 ≤T室内设定9 , it is further determined whether the facial temperature T 面部 ≤T 面部设定8 , where T 面部设定7 <T 面部设定8 ; if T 面部 ≤T 面部设定8 is satisfied, it is determined that the target temperature determination branch is the sixteenth temperature determination branch, and the output value corresponding to the sixteenth temperature determination branch of the user's individual temperature-cold feeling decision tree model is obtained as the neutral output value. For example, if the output is 0, the temperature-cold feeling 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 requirements of the user.

[0071] If T 面部 ≤T 面部设定8 is not satisfied, it is determined that the target temperature determination branch is the seventeenth temperature determination branch, and the output value corresponding to the seventeenth temperature determination branch of the user's individual temperature-cold feeling decision tree model is obtained as the neutral output value. For example, if the output is 0, the temperature-cold feeling 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 requirements of the user.

[0072] In some embodiments, as Figure 5 shown, the controller 30 is configured to: if T 室内 ≤T 室内设定8 is not satisfied, it is further determined whether the indoor environmental temperature T 室内 ≤T 室内设定11 , where T 室内设定8 <T 室内设定11 ; if T 室内 ≤T 室内设定11 is satisfied, it is further determined whether the facial temperature T 面部 ≤T 面部设定9 , where T 面部设定8 <T 面部设定9 ; if T 面部 ≤T 面部设定9 is satisfied, it is further determined whether the indoor environmental temperature T 室内 ≤T 室内设定12 , where T 室内设定12 <T 室内设定11 ; if T 室内 ≤T 室内设定12 is satisfied, it is determined that the target temperature determination branch is the eighteenth temperature determination branch, and the output value corresponding to the eighteenth temperature determination branch of the user's individual temperature-cold feeling decision tree model is obtained as the neutral output value. For example, if the output is 0, the temperature-cold feeling 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 requirements of the user.

[0073] If T is not satisfied 室内 ≤T 室内设定12 , then determine that the target temperature determination branch is the nineteenth temperature determination branch, and obtain the output value corresponding to the nineteenth temperature determination branch of the user's individual temperature-cold feeling decision tree model as the neutral output value. For example, if the output is 0, the temperature-cold feeling 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 requirements of the user.

[0074] If T is not satisfied 面部 ≤T 面部设定9 , then further determine whether the facial temperature T 面部 ≤T 面部设定10 , where T 面部设定9 <T 面部设定10 ; if T 面部 ≤T 面部设定10 is satisfied, determine that the target temperature determination branch is the twentieth temperature determination branch, and obtain the output value corresponding to the twentieth temperature determination branch of the user's individual temperature-cold feeling decision tree model as the overheat output value. For example, if the output is 1, the temperature-cold feeling state of the target user is overheat. That is, the user currently feels that the temperature is on the high side, so the current set target temperature is reduced to reduce the user's body feeling temperature and improve comfort.

[0075] If T is not satisfied 面部 ≤T 面部设定10 , then determine that the target temperature determination branch is the twenty-first temperature determination branch, and obtain the output value corresponding to the twenty-first temperature determination branch of the user's individual temperature-cold feeling decision tree model as the neutral output value. For example, if the output is 0, the temperature-cold feeling 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 requirements of the user.

[0076] In some embodiments, as Figure 5 shown, the controller 30 is further configured to: if T 室内 ≤T 室内设定11 is not satisfied, then further determine whether the facial temperature T 面部 ≤T 面部设定11 , where T 面部设定11 <T 面部设定9 ; if T 面部 ≤T 面部设定11 is satisfied, then further determine whether the facial temperature T 面部 ≤T 面部设定12 , where T 面部设定12 <T 面部设定11 ; if T 面部 ≤T 面部设定12, then determine that the target temperature determination branch is the twenty-second temperature determination branch, and obtain the output value corresponding to the twenty-second temperature determination branch of the user's individual temperature and cold feeling decision tree model as the neutral output value. For example, if the output is 0, the temperature and cold feeling 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 requirements of the user.

[0077] If T is not satisfied 面部 ≤T 面部设定12 , then determine that the target temperature determination branch is the twenty-third temperature determination branch, and obtain the output value corresponding to the twenty-third temperature determination branch of the user's individual temperature and cold feeling decision tree model as the neutral output value. For example, if the output is 0, the temperature and cold feeling 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 requirements of the user.

[0078] If T is not satisfied 面部 ≤T 面部设定11 , then further determine whether the facial temperature T 面部 ≤T 面部设定13 is satisfied, where T 面部设定12 <T 面部设定13 ; if T 面部 ≤T 面部设定13 is satisfied, then determine that the target temperature determination branch is the twenty-fourth temperature determination branch, and obtain the output value corresponding to the twenty-fourth temperature determination branch of the user's individual temperature and cold feeling decision tree model as the neutral output value. For example, if the output is 0, the temperature and cold feeling 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 requirements of the user.

[0079] If T is not satisfied 面部 ≤T 面部设定13 , then determine that the target temperature determination branch is the twenty-fifth temperature determination branch, and obtain the output value corresponding to the twenty-fifth temperature determination branch of the user's individual temperature and cold feeling decision tree model as the neutral output value. For example, if the output is 0, the temperature and cold feeling 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 requirements of the user.

[0080] In some embodiments, as Figure 6 shown, the controller 30 is further configured to: if T 室内 ≤T 室内设定1 is not satisfied, then execute process ①, which specifically includes: determining whether the indoor environmental temperature T 室内 ≤T 室内设定13 is satisfied, where T 室内设定1 <T 室内设定13 ; if T室内 ≤T 室内设定13 , then further determine whether the indoor ambient temperature T 室内 ≤T 室内设定14 , where T 室内设定14 <T 室内设定13 ; if T 室内 ≤T 室内设定14 is satisfied, then further determine whether the indoor ambient temperature T 室内 ≤T 室内设定15 , where T 室内设定15 <T 室内设定14 ; if T 室内 ≤T 室内设定15 is satisfied, then further determine whether the indoor ambient temperature T 室内 ≤T 室内设定16 , where T 室内设定16 <T 室内设定15 ; if T 室内 ≤T 室内设定16 is satisfied, then further determine whether the facial temperature T 面部 ≤T 面部设定14 , where T 面部设定13 <T 面部设定14 ; if T 面部 ≤T 面部设定14 is satisfied, then determine that the target temperature determination branch is the twenty-sixth temperature determination branch, and obtain the output value corresponding to the twenty-sixth temperature determination branch of the user's individual temperature cold feeling decision tree model as the overheat output value. For example, if the output is 1, then the temperature cold feeling state of the target user is overheat. That is, the user currently feels that the temperature is on the high side, so the current set target temperature is reduced to reduce the user's body feeling temperature and improve comfort.

[0081] If T 面部 ≤T 面部设定14 is not satisfied, then determine that the target temperature determination branch is the twenty-seventh temperature determination branch, and obtain the output value corresponding to the twenty-seventh temperature determination branch of the user's individual temperature cold feeling decision tree model as the neutral output value. For example, if the output is 0, then the temperature cold feeling 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 requirements of the user.

[0082] In some embodiments, as Figure 6 shown, the controller 30 is configured to: if T 室内 ≤T 室内设定16 is not satisfied, then further determine whether the facial temperature T 面部 ≤T 面部设定15 , where T 面部设定15 <T 面部设定14 ; if T 面部 ≤T 面部设定15, then determine that the target temperature determination branch is the twenty-eighth temperature determination branch, and obtain the output value corresponding to the twenty-eighth temperature determination branch of the user's individual temperature-cold feeling decision tree model as the overheated output value. For example, if the output is 1, then the temperature-cold feeling state of the target user is overheated. That is, if the user currently feels that the temperature is on the high side, then reduce the currently set target temperature to lower the user's body feeling temperature and improve comfort.

[0083] If T is not satisfied 面部 ≤T 面部设定15 , then determine that the target temperature determination branch is the twenty-ninth temperature determination branch, and obtain the output value corresponding to the twenty-ninth temperature determination branch of the user's individual temperature-cold feeling decision tree model as the overheated output value. For example, if the output is 1, then the temperature-cold feeling state of the target user is overheated. That is, if the user currently feels that the temperature is on the high side, then reduce the currently set target temperature to lower the user's body feeling temperature and improve comfort.

[0084] In some embodiments, as Figure 6 shown, the controller 30 is configured to: if T is not satisfied 室内 ≤T 室内设定15 , then further determine whether the indoor environmental temperature T 室内 ≤T 室内设定17 , where, T 室内设定15 <T 室内设定17 ; if T 室内 ≤T 室内设定17 is satisfied, then further determine whether the facial temperature T 面部 ≤T 面部设定16 , where, T 面部设定16 <T 面部设定14 ; if T 面部 ≤T 面部设定16 is satisfied, then determine that the target temperature determination branch is the thirtieth temperature determination branch, and obtain the output value corresponding to the thirtieth temperature determination branch of the user's individual temperature-cold feeling decision tree model as the overheated output value. For example, if the output is 1, then the temperature-cold feeling state of the target user is overheated. That is, if the user currently feels that the temperature is on the high side, then reduce the currently set target temperature to lower the user's body feeling temperature and improve comfort.

[0085] If T is not satisfied 面部 ≤T 面部设定16 , then determine that the target temperature determination branch is the thirty-first temperature determination branch, and obtain the output value corresponding to the thirty-first temperature determination branch of the user's individual temperature-cold feeling decision tree model as the overheated output value. For example, if the output is 1, then the temperature-cold feeling state of the target user is overheated. That is, if the user currently feels that the temperature is on the high side, then reduce the currently set target temperature to lower the user's body feeling temperature and improve comfort.

[0086] If T is not satisfied 室内 ≤T 室内设定17 , then further determine whether the facial temperature T is satisfied面部 ≤T 面部设定17 where T 面部设定16 <T 面部设定17 ; if T 面部 ≤T 面部设定17 is satisfied, then determine that the target temperature determination branch is the thirty - second temperature determination branch, and obtain the output value corresponding to the thirty - second temperature determination branch of the user's individual temperature - cold - feeling decision tree model as the over - heated output value. For example, if the output is 1, then the temperature - cold - feeling state of the target user is over - heated. That is, if the user currently feels that the temperature is on the high side, then reduce the currently set target temperature to lower the user's body - feeling temperature and improve comfort.

[0087] If T 面部 ≤T 面部设定17 is not satisfied, then determine that the target temperature determination branch is the thirty - third temperature determination branch, and obtain the output value corresponding to the thirty - third temperature determination branch of the user's individual temperature - cold - feeling decision tree model as the neutral output value. For example, if the output is 0, then the temperature - cold - feeling state of the target user is neutral. That is, if the user currently feels neither cold nor hot, at this time, the currently set target temperature can be maintained, that is, the air conditioner can currently meet the individual comfort requirements of the user.

[0088] In some embodiments, as Figure 6 shown, the controller 30 is further configured to, if T 室内 ≤T 室内设定17 is not satisfied, then further determine whether the facial temperature T 面部 ≤T 面部设定18 is satisfied, where T 面部设定18 <T 面部设定14 ; if T 面部 ≤T 面部设定18 is satisfied, then determine that the target temperature determination branch is the thirty - fourth temperature determination branch, and obtain the output value corresponding to the thirty - fourth temperature determination branch of the user's individual temperature - cold - feeling decision tree model as the neutral output value. For example, if the output is 0, then the temperature - cold - feeling state of the target user is neutral. That is, if the user currently feels neither cold nor hot, at this time, the currently set target temperature can be maintained, that is, the air conditioner can currently meet the individual comfort requirements of the user.

[0089] If T 面部 ≤T 面部设定18 is not satisfied, then further determine whether the indoor environmental temperature T 室内 ≤T 室内设定18 is satisfied, where T 室内设定14 <T 室内设定18 ; if T 室内 ≤T 室内设定18, it is determined that the target temperature determination branch is the thirty-fifth temperature determination branch, and the output value corresponding to the thirty-fifth temperature determination branch of the user's individual temperature cold feeling decision tree model is obtained as a neutral output value. For example, if the output is 0, the temperature cold feeling 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 requirements of the user.

[0090] If T is not satisfied 室内 ≤T 室内设定18 , it is determined that the target temperature determination branch is the thirty-sixth temperature determination branch, and the output value corresponding to the thirty-sixth temperature determination branch of the user's individual temperature cold feeling decision tree model is obtained as a hot-biased output value. For example, if the output is 1, the temperature cold feeling state of the target user is hot-biased. That is, the user currently feels that the temperature is on the high side, so the current set target temperature is reduced to lower the user's body feeling temperature and improve comfort.

[0091] In some embodiments, as Figure 7 shown, the controller 30 is configured to: if T is not satisfied 室内 ≤T 室内设定13 , then execute process ③, which specifically includes: determining whether the indoor environmental temperature T 室内 ≤T 室内设定19 is satisfied, where T 室内设定13 <T 室内设定19 ; if T 室内 ≤T 室内设定19 is satisfied, then further determine whether the facial temperature T 面部 ≤T 面部设定19 is satisfied, where T 面部设定19 <T 面部设定14 ; if T 面部 ≤T 面部设定19 is satisfied, then further determine whether the facial temperature T 面部 ≤T 面部设定20 is satisfied, where T 面部设定20 <T 面部设定19 ; if T 面部 ≤T 面部设定20 is satisfied, then further determine whether the facial temperature T 面部 ≤T 面部设定21 is satisfied, where T 面部设定21 <T 面部设定20 ; if T 面部 ≤T 面部设定21 is satisfied, it is determined that the target temperature determination branch is the thirty-seventh temperature determination branch, and the output value corresponding to the thirty-seventh temperature determination branch of the user's individual temperature cold feeling decision tree model is obtained as a neutral output value. For example, if the output is 0, the temperature cold feeling 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 requirements of the user.

[0092] If T is not satisfied 面部 ≤T 面部设定21 , then determine that the target temperature determination branch is the thirty-eighth temperature determination branch, and obtain the output value corresponding to the thirty-eighth temperature determination branch of the user's individual temperature-cold feeling decision tree model as the overheated output value. For example, if the output is 1, then the temperature-cold feeling state of the target user is overheated. That is, if the user currently feels that the temperature is too high, then reduce the current set target temperature to reduce the user's body feeling temperature and improve comfort.

[0093] In some embodiments, as Figure 7 shown, the controller 30 is configured to: if T is not satisfied 面部 ≤T 面部设定20 , then further determine whether the indoor environmental temperature T 室内 ≤T 室内设定20 is satisfied, where T 室内设定20 <T 室内设定19 ; if T 室内 ≤T 室内设定20 is satisfied, then determine that the target temperature determination branch is the thirty-ninth temperature determination branch, and obtain the output value corresponding to the thirty-ninth temperature determination branch of the user's individual temperature-cold feeling decision tree model as the neutral output value. For example, if the output is 0, then the temperature-cold feeling 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 requirements of the user.

[0094] If T is not satisfied 室内 ≤T 室内设定20 , then determine that the target temperature determination branch is the fortieth temperature determination branch, and obtain the output value corresponding to the fortieth temperature determination branch of the user's individual temperature-cold feeling decision tree model as the neutral output value. For example, if the output is 0, then the temperature-cold feeling 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 requirements of the user.

[0095] In some embodiments, as Figure 7 shown, the controller 30 is configured to: if T is not satisfied 面部 ≤T 面部设定19 , then further determine whether the facial temperature T 面部 ≤T 面部设定22 is satisfied, where T 面部设定19 <T 面部设定22 ; if T 面部 ≤T 面部设定22, it is determined that the target temperature determination branch is the forty-first temperature determination branch, and the output value corresponding to the forty-first temperature determination branch of the user's individual temperature-cold feeling decision tree model is obtained as the overheated output value. For example, if the output is 1, the temperature-cold feeling state of the target user is overheated. That is, if the user currently feels that the temperature is too high, the current set target temperature is reduced to lower the user's body feeling temperature and improve comfort.

[0096] If T 面部 ≤T 面部设定22 is not satisfied, it is further determined whether T 面部 ≤T 面部设定23 is satisfied, where T 面部设定22 <T 面部设定23 ; if T 面部 ≤T 面部设定23 is satisfied, it is determined that the target temperature determination branch is the forty-second temperature determination branch, and the output value corresponding to the forty-second temperature determination branch of the user's individual temperature-cold feeling decision tree model is obtained as the neutral output value. For example, if the output is 0, the temperature-cold feeling 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 requirements of the user.

[0097] If T 面部 ≤T 面部设定23 is not satisfied, it is determined that the target temperature determination branch is the forty-third temperature determination branch, and the output value corresponding to the forty-third temperature determination branch of the user's individual temperature-cold feeling decision tree model is obtained as the overheated output value. For example, if the output is 1, the temperature-cold feeling state of the target user is overheated. That is, if the user currently feels that the temperature is too high, the current set target temperature is reduced to lower the user's body feeling temperature and improve comfort.

[0098] In some embodiments, as Figure 7 shown, the controller 30 is configured to: if T 室内 ≤T 室内设定19 is not satisfied, it is further determined whether the indoor environmental temperature T 室内 ≤T 室内设定21 is satisfied, where T 室内设定18 <T 室内设定21 ; if T 室内 ≤T 室内设定21 is satisfied, it is further determined whether the indoor environmental temperature T 室内 ≤T 室内设定22 is satisfied, where T 室内设定22 <T 室内设定21 ; if T 室内 ≤T 室内设定22 is satisfied, it is further determined whether the facial temperature T 面部 ≤T 面部设定24 is satisfied, where T 面部设定20 <T 面部设定24; If T is satisfied 面部 ≤T 面部设定24 , then determine that the target temperature determination branch is the forty-fourth temperature determination branch, and obtain the output value corresponding to the forty-fourth temperature determination branch of the user's individual temperature cold feeling decision tree model as the overheated output value. For example, if the output is 1, then the temperature cold feeling state of the target user is overheated. That is, if the user currently feels that the temperature is on the high side, then reduce the currently set target temperature to reduce the user's body feeling temperature and improve comfort.

[0099] If T is not satisfied 面部 ≤T 面部设定24 , then determine that the target temperature determination branch is the forty-fifth temperature determination branch, and obtain the output value corresponding to the forty-fifth temperature determination branch of the user's individual temperature cold feeling decision tree model as the overheated output value. For example, if the output is 1, then the temperature cold feeling state of the target user is overheated. That is, if the user currently feels that the temperature is on the high side, then reduce the currently set target temperature to reduce the user's body feeling temperature and improve comfort.

[0100] If T is not satisfied 室内 ≤T 室内设定22 , then further determine whether the facial temperature T is satisfied 面部 ≤T 面部设定25 , where T 面部设定24 <T 面部设定25 ; If T is satisfied 面部 ≤T 面部设定25 , then determine that the target temperature determination branch is the forty-sixth temperature determination branch, and obtain the output value corresponding to the forty-sixth temperature determination branch of the user's individual temperature cold feeling decision tree model as the overheated output value. For example, if the output is 1, then the temperature cold feeling state of the target user is overheated. That is, if the user currently feels that the temperature is on the high side, then reduce the currently set target temperature to reduce the user's body feeling temperature and improve comfort.

[0101] If T is not satisfied 面部 ≤T 面部设定25 , then determine that the target temperature determination branch is the forty-seventh temperature determination branch, and obtain the output value corresponding to the forty-seventh temperature determination branch of the user's individual temperature cold feeling decision tree model as the overheated output value. For example, if the output is 1, then the temperature cold feeling state of the target user is overheated. That is, if the user currently feels that the temperature is on the high side, then reduce the currently set target temperature to reduce the user's body feeling temperature and improve comfort.

[0102] In some embodiments, as Figure 7 shown, the controller 30 is configured to: If T is not satisfied 室内 ≤T 室内设定21 , then further determine whether the facial temperature T is satisfied 面部 ≤T 面部设定26 , where T 面部设定25 <T 面部设定26 ; If T is satisfied 面部 ≤T面部设定26 , it is further determined whether the indoor environmental temperature T 室内 ≤T 室内设定23 , where T 室内设定21 <T 室内设定23 ; if T 室内 ≤T 室内设定23 is satisfied, it is determined that the target temperature determination branch is the forty-eighth temperature determination branch, and the output value corresponding to the forty-eighth temperature determination branch of the user's individual temperature cold feeling decision tree model is obtained as the overheat output value. For example, if the output is 1, the temperature cold feeling state of the target user is overheat. That is, if the user currently feels that the temperature is on the high side, the current set target temperature is reduced to lower the user's body feeling temperature and improve comfort.

[0103] If T 室内 ≤T 室内设定23 is not satisfied, it is determined that the target temperature determination branch is the forty-ninth temperature determination branch, and the output value corresponding to the forty-ninth temperature determination branch of the user's individual temperature cold feeling decision tree model is obtained as the overheat output value. For example, if the output is 1, the temperature cold feeling state of the target user is overheat. That is, if the user currently feels that the temperature is on the high side, the current set target temperature is reduced to lower the user's body feeling temperature and improve comfort.

[0104] If T 面部 ≤T 面部设定26 is not satisfied, it is further determined whether the indoor environmental temperature T 室内 ≤T 室内设定24 , where T 室内设定21 <T 室内设定24 ; if T 室内 ≤T 室内设定24 is satisfied, it is determined that the target temperature determination branch is the fiftieth temperature determination branch, and the output value corresponding to the fiftieth temperature determination branch of the user's individual temperature cold feeling decision tree model is obtained as the neutral output value. For example, if the output is 0, the temperature cold feeling 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 requirements of the user.

[0105] If T 室内 ≤T 室内设定24 is not satisfied, it is determined that the target temperature determination branch is the fifty-first temperature determination branch, and the output value corresponding to the fifty-first temperature determination branch of the user's individual temperature cold feeling decision tree model is obtained as the neutral output value. For example, if the output is 0, the temperature cold feeling 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 requirements of the user.

[0106] The above is the adoption as Figures 4 - 7The process of the user's individual temperature and cold feeling decision tree model shown in the figure for determining the user's temperature and cold feeling state can be understood that the user's individual temperature and cold feeling recognition processes of other models are similar to the above process, but the levels of the models, the temperature determination branches, and the temperature decision conditions of each node in each branch are different from those of the model of the present disclosure.

[0107] Further, in some embodiments, in order to improve the accuracy of recognizing the user's current temperature and cold feeling based on the above user's individual temperature and cold feeling decision tree model, the controller 30 is further configured to periodically input the facial temperature and the indoor environment temperature into the user's individual temperature and cold feeling decision tree model to obtain a preset number of output values output by the user's individual temperature and cold feeling decision tree model, perform statistics and classification on the preset number of output values, and use the temperature and cold feeling state corresponding to the output value in the classification with the most output values as the temperature and cold feeling state of the target user. Thus, the accuracy of recognizing the user's individual temperature and cold feeling can be improved, and then the model can also perform machine learning by itself to be further optimized, further improving the accuracy of the recognition result, forming a virtuous cycle.

[0108] In some embodiments, the controller 30 is further configured to: when the air conditioner 1 is in the heating mode and it is continuously determined for a preset number of times that the temperature and cold feeling state of the target user is cold, increase the indoor fan speed of the air conditioner 1; when the air conditioner 1 is in the heating mode and it is continuously determined for a preset number of times that the temperature and cold feeling state of the target user is hot, decrease the indoor fan speed of the air conditioner 1; when the air conditioner 1 is in the cooling mode and it is continuously determined for a preset number of times that the temperature and cold feeling state of the target user is cold, decrease the indoor fan speed of the air conditioner 1; when the air conditioner 1 is in the cooling mode and it is continuously determined for a preset number of times that the temperature and cold feeling state of the target user is hot, increase the indoor fan speed of the air conditioner 1. For example, the controller 30 respectively performs three judgments through the user's individual temperature and cold feeling decision tree model to obtain independent temperature and cold feeling judgment values (-1, 0, 1), and then performs statistics. The temperature and cold feeling corresponding to the most statistics is the output value of the final temperature and cold feeling determination.

[0109] For example, as Figure 8 shown, it is a flowchart of the overall operation logic of the air conditioner comfort control according to an embodiment of the present disclosure. Among them, if the controller 30 outputs as hot (1) through the user's individual temperature and cold feeling decision tree model, the controller 30 sends a cooling signal to lower the temperature by 1°C on the basis of the existing set temperature. If the controller 30 outputs as cold (-1) through the user's individual temperature and cold feeling decision tree model, the controller 30 sends a heating signal to raise the temperature by 1°C on the basis of the existing set temperature. If the controller 30 outputs as neutral (0) through the user's individual temperature and cold feeling decision tree model, the controller 30 keeps the existing setting unchanged, and each judgment cycle is based on the air conditioner feedback time. If the temperature and cold feeling prediction is cold (or hot) for three consecutive cycles, it is considered that the user's individual heat and cold feeling is strong and the wind speed needs to be increased by one gear, otherwise the air conditioner wind speed remains unchanged according to the original setting.

[0110] In some embodiments, an embodiment of the second aspect of the present disclosure further provides a control method for an air conditioner. The control method can be executed by a controller of the air conditioner. The control method includes: receiving the facial temperature of a target user and the indoor environmental temperature; inputting the facial temperature and the indoor environmental temperature into a user individual temperature-cold feeling decision tree model, determining the temperature-cold feeling state of the target user according to the output value of the user individual temperature-cold feeling decision tree model, adjusting the current set target temperature according to the temperature-cold feeling state, and controlling the operation of the air conditioner according to the adjusted target temperature. Among them, at least six layers of temperature decision condition sets are configured in the user individual temperature-cold feeling decision tree model, and the at least six layers of temperature decision condition sets form multiple temperature determination branches. Among them, the first layer of temperature decision condition set includes: decision conditions based on the indoor environmental temperature, the second layer of temperature decision condition set includes: decision conditions based on the facial temperature and the indoor environmental temperature, the third layer of temperature decision condition set includes: decision conditions based on the indoor environmental temperature, the fourth layer of temperature decision condition set includes: decision conditions based on three facial temperatures and five indoor environmental temperatures, the fifth layer of temperature decision condition set includes: decision conditions based on six facial temperatures and seven indoor environmental temperatures, the sixth layer of temperature decision condition set includes: decision conditions based on sixteen facial temperatures and six indoor environmental temperatures; determining the temperature-cold feeling state of the target user according to the output value of the user individual temperature-cold feeling decision tree model; adjusting the current set target temperature according to the temperature-cold feeling state, and controlling the operation of the air conditioner according to the adjusted target temperature.

[0111] Of course, in the embodiment, the control method of the air conditioner in the embodiment of the present disclosure may further include other contents executed by the above-mentioned controller of the air conditioner, such as how to obtain the facial temperature specifically, and how to identify the current temperature-cold feeling state of the user based on the user individual temperature-cold feeling decision tree model. Referring to the above description, it will not be elaborated here.

[0112] As mentioned above, the present invention, aiming at the different thermal comfort requirements of individual users, uses artificial intelligence technology based on big data to establish a user individual temperature-cold feeling decision tree model, self-learns the changing rules of the user's temperature-cold feeling, accurately identifies the individual thermal comfort requirements of the user, and performs personalized thermal comfort control to meet the different and personalized comfort control requirements of different individual users. At the same time, it makes up for the deficiency that the PMV prediction comfort model based on the general population weakens individual differences, so that the air conditioner 1 can not only meet the comfort requirements of the general population, but also realize the personalized comfort requirements of individual household users.

[0113] In an embodiment, as described above for an individual user, for example, when there is only one user indoors, the user selects the individual user comfort mode, or the air conditioner 1 automatically activates the individual user comfort mode when it detects that there is only one user indoors. Then, the air conditioner 1 can execute the individual user comfort mode according to the above embodiment to improve the individual user's comfort. However, when there are multiple people indoors, the air conditioner 1 will operate in the TMS (Thermal and humidity Management System) comfort mode based on the PMV prediction comfort model applicable to the general population.

[0114] In some embodiments, when the air conditioner 1 operates automatically, it can activate the indoor user detection function to detect how many people are indoors. When there is one person, it can automatically activate the individual user comfort mode, and when there are multiple people, it can operate in the TMS comfort mode.

[0115] For the individual user comfort mode, as Figure 9 shown, when the air conditioner 1 operates, it activates the individual user comfort mode, collects the indoor temperature and humidity. 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 the indoor environment temperature and invokes the individual user's thermal sensation decision tree model. Then, it adjusts the target temperature according to the output value of the model, and based on the adjusted target temperature, controls the air conditioner to operate on its own to meet the personalized comfort needs of individual users and improve the user's comfort.

[0116] The following describes the TMS comfort mode based on the PMV prediction comfort model.

[0117] In some embodiments, the TMS comfort mode is an air conditioner cooling / heating comfort control method that can effectively adjust the air conditioner's comfort, effectively solving the technical problem of how to control the air conditioner through temperature and humidity indicators. The entire comfort cooling / heating stage is divided into three stages: the initial comfort stage + the stable comfort stage + the healthy comfort stage. It not only effectively meets people's perfect experience requirements for cooling comfort but also realizes the perfect combination of comfort and energy conservation. In the healthy comfort stage, according to the human body's thermal adaptability characteristics, the target set temperature is raised by 1°C, that is, Ts_section = Ts_comfort + 1°C, achieving the purpose of being both comfortable and energy-saving.

[0118] In an embodiment, for the TMS comfort mode, it is first necessary to rely on the target values of temperature and humidity for addressing. The temperature and humidity addressing rule is calculated based on the predicted mean vote (PMV) value, an index of human thermal sensation. By calculation, a "comfort temperature and humidity reference table (PMV value within ±0.5)" is generated as the reference table for the comfort control of the air conditioner. The air conditioner detects the outdoor ambient temperature Tout, the indoor ambient temperature Tin, and the indoor relative humidity Rh through sensors. According to the obtained outdoor temperature Tout, it enters the corresponding temperature zone, combines the thermal resistance clo of the clothing worn by the human body and the metabolic rate M of human activities to obtain different temperature compensation values Tcomp, and determines the specific operating mode (cooling / heating / air supply) of the air conditioner. Then, according to the comfort temperature and humidity reference table, using the obtained indoor relative humidity Rh as a pointer, it addresses within the reference table to determine the target set temperature Ts_com for the stable comfort stage, and the air conditioner operates with Ts_com as the target set value.

[0119] In some embodiments, for the TMS comfort mode, the temperature and humidity addressing from the beginning always revolves around six factors affecting human thermal sensation of the PMV value: environmental parameters (air temperature, air relative humidity, wind speed, mean radiant temperature) and human parameters (human activity intensity, clothing thermal resistance) for addressing. With human comfort control as the core, compared with the current industry practice of mainly designing and controlling comfort air conditioners through a single temperature index, or using a specified single temperature index + a specified single humidity index to design and control comfort air conditioners, the advantages are very obvious.

[0120] The following Table 1 shows the names and meanings of each symbol in the description of the TMS comfort mode.

[0121] Table 1

[0122]

[0123]

[0124] In some embodiments, when operating the TMS comfort mode, the air conditioner detects the outdoor temperature Tout, the indoor temperature Tin, and the indoor relative humidity Rh through the sensors configured by itself. According to the obtained Tout, it enters the corresponding divided temperature zone and determines the next specific operating mode (cooling / heating / air supply). Every 2 hours, according to the outdoor temperature Tout, a new operating temperature zone is determined. If it is still in the original operating temperature zone, continue to maintain the original mode and stage of operation; if it is in a new temperature zone, then combine the indoor temperature Tin and the indoor relative humidity Rh in the new temperature zone, interrupt the original operating mode, and enter a new specific sub-mode of operation. In case of indoor sensor failure or overflow, and in the absence of a humidity sensor, Rh is defaulted to 65%.

[0125] In some embodiments, addressing is performed according to the comfort temperature and humidity reference table. According to the obtained Tout, enter the corresponding temperature zone, determine the mode to enter, including refrigeration, heating, air supply, etc., and then address according to the rules under different modes, as follows.

[0126] Table 2 Comfort Temperature and Humidity Reference Table

[0127]

[0128] Table 3 Temperature Compensation Value Table

[0129] Outdoor ambient temperature Tout (°C) Clothing thermal resistance clo Human metabolic rate M <![CDATA[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

[0130] In some embodiments, when the air conditioner operates in the refrigeration mode, as shown in Figure 10 the addressing process is as follows:

[0131] According to the reference comfort table in Table 3. If Rh < 30% (the lower limit value 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 the comfort humidity in the comfort table), the lowest temperature corresponding to Rh 65% in the comfort table is Ts_ 初 (Ts_ 初 = 23.5°C); if 65% ≥ Rh ≥ 30% (the upper and lower limit values of the comfort humidity in the comfort table), the lowest temperature corresponding to the closest humidity in the comfort table is Ts_ 初 (For example, if Rh = 43%, the closest humidity in the comfort table is Rh = 45%, then the lowest temperature corresponding to Rh = 45% is Ts_ 初 = 24°C). The average value (25.25°C) of the sum of the upper limit value (26.5°C) and the lower limit value (24°C) of the comfort humidity corresponding to Rh = 50% in the comfort table is taken as Ts_ 舒 , and the default is 25.5°C.

[0132] In some embodiments, when the air conditioner operates in the heating mode, as shown in Figure 11 the addressing process is as follows:

[0133] According to the reference comfort table in Table 3. If Rh < 30% (the lower limit value of the comfort humidity in the comfort table), the highest temperature corresponding to Rh 30% in the comfort table is Ts_ 初 (Ts_ 初 = 27°C); if Rh > 65% (the upper limit value of the comfort humidity in the comfort table), the highest temperature corresponding to Rh 65% in the comfort table is Ts_ 初 (Ts_ 初= 26 °C); If 65% ≥ Rh ≥ 30% (the upper and lower limits of the comfortable humidity), the lowest temperature corresponding to the closest humidity in the comfort table is Ts_ 初 (For example, if Rh = 43%, the closest humidity in the comfort table is Rh = 45%, then the highest temperature corresponding to Rh = 45% is Ts_ 初 = 26.5 °C). The average value (25.25 °C) of the sum of the upper limit value (26.5 °C) and the lower limit value (24 °C) of the comfortable humidity corresponding to Rh = 50% in the comfort table is taken as Ts_comfort, and the default is 25.5 °C.

[0134] In some embodiments, when the air conditioner operates in the air supply mode, the air conditioner does not perform addressing.

[0135] 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

[0136] For example, as Figure 12 shown, Tout > 24 °C.

[0137] ⑴. If Tin ≤ 28 °C and Rh ≥ 65%, enter the dehumidification mode. Check Tables 2 and 3 to obtain Ts_ 初 , Ts_ 舒 , Ts_ 节 (where Ts_ 节 = Ts_ 舒 + 1 °C) and the T compensation value, and enter the initial dehumidification comfort stage.

[0138] In the initial dehumidification comfort stage: Ts = Ts_ 初 + T 补 , the display screen of the air conditioner shows Ts_ 舒 + T compensation and the air conditioner displays an icon indicating the change of the TMS comfort mode operation stage). When E ≤ 0.5 °C and it accumulates for 5 minutes or (Tin - (Ts_ 舒 + T 补 )) ≤ -0.5 °C and it accumulates for 15 minutes, enter the stable dehumidification comfort stage / / (Tin - (Ts_ 舒 + T 补 )) ≤ -0.5 °C means that the set temperature of the initial comfort stage is not reached, but the set temperature of the stable comfort stage is reached.

[0139] Stable dehumidification comfort stage: Ts(1) = Ts_ 初 + T 补 + 0.5 °C, increasing by 0.5 °C every 5 minutes, that is, Ts(n + 1) = Ts(n) + 0.5 °C, until Ts(n + 1) = Ts_ 舒 + T 补, where n is a natural number greater than or equal to 1. / / Use a recursive increasing function to prevent the compressor from shutting down when the set temperature is reached due to a large set temperature change during the stage transition. When E ≤ -0.5 °C and it lasts for 30 minutes (starting from Ts(n + 1) = Ts_comfort + T_compensation), enter the dehumidification healthy comfort stage.

[0140] Dehumidification healthy comfort stage: Ts(1) = Ts_ 舒 + T 补 + 0.5 °C, increasing by 0.5 °C every 5 minutes, that is, Ts(n + 1) = Ts(n) + 0.5 °C until Ts(n + 1) = Ts_ 节 + T 补 , where n is a natural number greater than or equal to 1. / / Use a recursive increasing function to prevent the compressor from shutting down when the set temperature is reached due to a large set temperature change during the stage transition.

[0141] ⑵ If Tin ≤ 28 °C and Rh < 65%, enter the air supply mode.

[0142] ⑶ If Tin > 28 °C, enter the refrigeration mode. Check Table 2 and Table 3 to obtain Ts_ 初 、Ts_ 舒 、Ts_ 节 (where Ts_ 节 = Ts_ 舒 + 1 °C) and the T_compensation value, and enter the initial refrigeration comfort stage.

[0143] Initial refrigeration comfort stage: Ts = Ts_ 初 + T 补 / / (The display shows Ts_ 初 + T 补 and there is an icon indicating the change in the TMS comfort mode operation stage), when E ≤ 0.5 °C and it accumulates for 5 minutes or (Tin - (Ts_ 初 + T 补 )) ≤ -0.5 °C and it accumulates for 15 minutes, enter the stable refrigeration comfort stage / / (Tin - (Ts_ 初 + T 补 )) ≤ -0.5 °C means that the set temperature of the initial comfort stage is not reached, but the set temperature of the stable comfort stage is reached.

[0144] Stable refrigeration comfort stage: Ts(1) = Ts_ 初 + T 补 + 0.5 °C, increasing by 0.5 °C every 5 minutes, that is, Ts(n + 1) = Ts(n) + 0.5 °C until Ts(n + 1) = Ts_ 舒 + T 补, where n is a natural number greater than or equal to 1. / / Use a recursive increasing function to prevent the compressor from shutting down when the set temperature is reached due to a large set temperature change amplitude during stage conversion. When E ≤ -0.5 °C and it lasts for 30 min (starting from Ts(n + 1) = Ts_ 舒 +T 补 to start timing), it enters the refrigeration healthy and comfortable stage.

[0145] Refrigeration healthy and comfortable stage: Ts(1) = Ts_ 舒 +T 补 + 0.5 °C, and it increases by 0.5 °C every 5 min, that is, Ts(n + 1) = Ts(n) + 0.5 °C until Ts(n + 1) = Ts_ 节 +T 补 , where n is a natural number greater than or equal to 1. / / Use a recursive increasing function to prevent the compressor from shutting down when the set temperature is reached due to a large set temperature change amplitude during stage conversion.

[0146] In some embodiments, the operating states of the indoor fan, the operating state and frequency of the compressor, the operating state of the electric heater, 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.

[0147] Table 4 Requirements for the operation control of each component of the air conditioner

[0148]

[0149] In some embodiments, based on the humidity control and moisture retention theory of "as the indoor environmental humidity increases, the peak of the air conditioner's dehumidification amount has a tendency to gradually move towards the high wind speed side of the indoor unit. At different wind speeds, the critical points of the dry and wet working conditions are different. The higher the wind speed, the higher the inlet relative humidity is required to enter the wet working condition; the lower the wind speed, the lower the inlet relative humidity will enter the wet working condition" (as shown in Table 5, Figure 13 ), an indoor fan comfort control method is proposed, which can better control and maintain the indoor environmental relative humidity within the range of human comfort humidity.

[0150] Table 5 Relationship between the absolute dehumidification amount in 4 h and the indoor unit wind speed

[0151] Absolute dehumidification capacity in 4 h 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

[0152] Based on the above humidity control and moisture retention theory, an indoor fan comfort control method is proposed, which can better control and maintain the indoor environmental relative humidity within the range of human comfort humidity. Refer to Figure 14 to describe the indoor fan comfort control method when the air conditioner operation mode is the refrigeration mode in the embodiments of the present disclosure.

[0153] Step S11, the air conditioner turns on the TMS function. Step S12, obtain the indoor environmental temperature Tin, outdoor environmental temperature Tout, indoor environmental relative humidity Rh, and indoor instantaneous sampled relative humidity Rhi.

[0154] Step S13, determine whether the air conditioner enters the cooling or dehumidifying mode according to the indoor environmental temperature Tin, outdoor environmental temperature Tout, and indoor environmental relative humidity Rh.

[0155] Step S14, the air conditioner enters the cooling mode. Step S15, control the indoor fan speed.

[0156] Step S16, determine whether the set temperature difference E is greater than the first set temperature, for example, 2°C. If so, execute Step S17; if not, execute Step S18.

[0157] Step S17, control the indoor fan to operate at the first gear wind speed. Step S18, control the indoor fan to operate at the second gear wind speed. Step S19, determine whether the set temperature difference E is less than or equal to the first set temperature, for example, 2°C. If so, execute Step S18; if not, execute Step S17.

[0158] S20, determine whether within the preset time, the first temperature difference is greater than or equal to -2°C and less than or equal to 2°C. If so, execute Step S21; if not, execute Step S18.

[0159] Step S21, determine whether the second temperature difference is greater than or equal to -6 and less than 6. If so, execute Step 20; if not, execute Step S22.

[0160] Step S22, determine whether the second temperature difference is greater than 6. If so, execute Step S23; if not, execute Step S24.

[0161] Step S23, control the indoor fan to operate at the third gear speed.

[0162] Step S24, determine whether the second temperature difference is less than -6. If so, execute Step S25; if not, execute Step S21.

[0163] Step S25, control the indoor fan to operate at the fourth gear speed.

[0164] Through the above steps S11 - S25, the energy consumption of the air conditioner can be reduced while ensuring the user's comfort.

[0165] The above describes the TMS comfort mode based on the PMV model of the present disclosure embodiment.

[0166] Generally speaking, the air conditioner according to the embodiments of the present disclosure can be set with a user individual comfort mode and a TMS comfort mode. Among them, since the PMV model is an average thermal sensation prediction model based on the general population, the influence of individual user differences is weakened. In order to meet the personalized and differential thermal comfort needs of household air conditioners, especially individual household users, an artificial intelligence technology based on big data is used to establish a user individual temperature and cold sensation decision tree model, self-learn the change rules of the user's temperature and cold sensation, accurately identify the individual thermal comfort needs of the user, and perform personalized thermal comfort control to meet the differential and personalized comfort control requirements of different individual users. It also makes up for the deficiency that the PMV prediction comfort model based on the general population weakens individual differences, so that the air conditioner can not only meet the comfort needs of the general population, but also realize the personalized comfort needs of individual household users.

[0167] The user individual temperature and cold sensation decision tree model according to the embodiments of the present disclosure is based on a machine learning method, and its accuracy depends to a large extent on the amount of data participating in the training. Therefore, in practical applications, as the amount of data continues to increase, its accuracy will also increase. The temperature and cold sensation prediction model established based on skin temperature can, in an ideal situation, achieve full-automatic control without the need for personnel to adjust parameters.

[0168] In addition, the above technical description uses terms to provide a thorough understanding of the described embodiments. However, overly detailed details are not required to implement the described embodiments. Therefore, the above description of the embodiments is presented for illustration and description. The embodiments presented in the above description and the examples disclosed according to these embodiments are provided separately to add context and help understand the described embodiments. The above specification is not intended to be exhaustive or to limit the described embodiments to the precise form of the present disclosure. According to the above teachings, several modifications, selections, and variations are feasible. In some cases, well-known processing steps are not described in detail to avoid unnecessarily affecting the described embodiments.

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 the indoor ambient temperature; A controller, the controller is connected to the human body temperature detection device and the indoor temperature detection device, and the controller is configured as follows: The facial temperature and the indoor environment temperature are input into a user individual temperature and coldness decision tree model, the temperature and coldness state of the target user is determined according to the output value of the user individual temperature and coldness decision tree model, the currently set target temperature is adjusted according to the temperature and coldness state, and the operation of the air conditioner is controlled according to the adjusted target temperature, wherein at least six layers of temperature decision condition sets are configured in the user individual temperature and coldness decision tree model, and at least six layers of temperature decision condition sets constitute a plurality of temperature determination branches, wherein a first layer of temperature decision condition set includes: a decision condition based on the indoor environment temperature, a second layer of temperature decision condition set includes: a decision condition based on one facial temperature and one indoor environment temperature, a third layer of temperature decision condition set includes: a decision condition based on four indoor environment temperatures, a fourth layer of temperature decision condition set includes: a decision condition based on three facial temperatures and five indoor environment temperatures, a fifth layer of temperature decision condition set includes: a decision condition based on six facial temperatures and seven indoor environment temperatures, and a sixth layer of temperature decision condition set includes: a decision condition based on sixteen facial temperatures and six indoor environment temperatures.

2. The air conditioner according to claim 1, characterized in that: When determining the temperature and coldness sensation state of the target user, the controller is specifically configured to compare the facial temperature and the indoor environment 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 coldness sensation decision tree model to determine the target temperature determination branch, obtain the output value of the user's individual temperature and coldness sensation decision tree model corresponding to the target temperature determination branch, and use the temperature and coldness sensation state corresponding to the output value as the temperature and coldness sensation state of the target user.

3. The air conditioner according to claim 2, characterized in that: The controller is configured to: Determine whether the indoor ambient temperature meets T 室内 ≤T 室内设定1 ; If T 室内 ≤T 室内设定1 , then further determine whether the facial temperature T 面部 ≤T 面部设定1 ; If T 面部 ≤T 面部设定1 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定2 , where 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 , where T 室内设定3 <T 室内设定2 ; If T 室内 ≤T 室内设定3 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定4 , where T 室内设定4 <T 室内设定3 ; If T 室内 ≤T 室内设定4 , then further determine whether the facial temperature T 面部 ≤T 面部设定2 , where T 面部设定2 <T 面部设定1 ; If T 面部 ≤T 面部设定2 , it is determined that the target temperature determination branch is the first temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the first temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 面部 ≤T 面部设定2 , it is determined that the target temperature determination branch is the second temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the second temperature determination branch is obtained as a relatively cold output value, and the temperature sensation state of the target user is relatively cold; If T is not satisfied 室内 ≤T 室内设定4 , then further determine whether the facial temperature T 面部 ≤T 面部设定3 , where T 面部设定2 <T 面部设定3 ; If T 面部 ≤T 面部设定3 , it is determined that the target temperature determination branch is the third temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the third temperature determination branch is obtained as a relatively cold output value, and the temperature sensation state of the target user is relatively cold; If T is not satisfied 面部 ≤T 面部设定3 , it is determined that the target temperature determination branch is the fourth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the fourth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral.

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3 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定5 , where T 室内设定3 <T 室内设定5 ; If T 室内 ≤T 室内设定5 , then further determine whether the facial temperature T 面部 ≤T 面部设定4 , where T 面部设定3 <T 面部设定4 ; If T 面部 ≤T 面部设定4 , it is determined that the target temperature determination branch is the fifth temperature determination branch, and the output value of the user individual temperature perception decision tree model corresponding to the fifth temperature determination branch is obtained as a relatively cold output value, and the temperature perception state of the target user is relatively cold; If T is not satisfied 面部 ≤T 面部设定4 , it is determined that the target temperature determination branch is the sixth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the sixth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 室内 ≤T 室内设定5 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定6 , where T 室内设定5 <T 室内设定6 ; If T 室内 ≤T 室内设定6 , it is determined that the target temperature determination branch is the seventh temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the seventh temperature determination branch is obtained as a relatively cold output value, and the temperature sensation state of the target user is relatively cold; If T is not satisfied 室内 ≤T 室内设定6 , it is determined that the target temperature determination branch is the eighth temperature determination branch, and the output value of the user individual temperature perception decision tree model corresponding to the eighth temperature determination branch is obtained as a relatively cold output value, and the temperature perception state of the target user is relatively cold.

5. 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2 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定7 , where T 室内设定2 <T 室内设定7 ; If T 室内 ≤T 室内设定7 , it is determined that the target temperature determination branch is the ninth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the ninth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 室内 ≤T 室内设定7 , then further determine whether the facial temperature T 面部 ≤T 面部设定5 , where T 面部设定3 <T 面部设定5 ; If T 面部 ≤T 面部设定5 , it is determined that the target temperature determination branch is the tenth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the tenth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 面部 ≤T 面部设定5 , then further determine whether the facial temperature T 面部 ≤T 面部设定6 , where T 面部设定5 <T 面部设定6 ; If T 面部 ≤T 面部设定6 , it is determined that the target temperature determination branch is the eleventh temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the eleventh temperature determination branch is obtained as a relatively cold output value, and the temperature sensation state of the target user is relatively cold; If T is not satisfied 面部 ≤T 面部设定6 , it is determined that the target temperature determination branch is the twelfth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the twelfth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral.

6. The air conditioner according to claim 3, characterized in that: The controller is configured to: If T is not satisfied 面部 ≤T 面部设定1 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定8 , where T 室内设定2 <T 室内设定8 ; If T 室内 ≤T 室内设定8 , then further determine whether the facial temperature T 面部 ≤T 面部设定7 , where T 面部设定1 <T 面部设定7 ; If T 面部 ≤T 面部设定7 , it is determined that the target temperature determination branch is the thirteenth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the thirteenth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 面部 ≤T 面部设定7 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定9 , where T 室内设定9 <T 室内设定8 ; If T 室内 ≤T 室内设定9 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定10 , where T 室内设定10 <T 室内设定9 ; If T 室内 ≤T 室内设定10 , it is determined that the target temperature determination branch is the fourteenth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the fourteenth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 室内 ≤T 室内设定10 , then the target temperature determination branch is determined to be the fifteenth temperature determination branch, and the output value of the user individual temperature perception decision tree model corresponding to the fifteenth temperature determination branch is obtained as a relatively cold output value, and the temperature perception state of the target user is relatively cold; If T is not satisfied 室内 ≤T 室内设定9 , then further determine whether the facial temperature T 面部 ≤T 面部设定8 , where T 面部设定7 <T 面部设定8 ; If T 面部 ≤T 面部设定8 , it is determined that the target temperature determination branch is the sixteenth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the sixteenth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 面部 ≤T 面部设定8 , then it is determined that the target temperature determination branch is the seventeenth temperature determination branch, and the output value of the user's individual temperature perception decision tree model corresponding to the seventeenth temperature determination branch is a neutral output value, and the temperature perception state of the target user is neutral.

7. 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8 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定11 , where T 室内设定8 <T 室内设定11 ; If T 室内 ≤T 室内设定11 , then further determine whether the facial temperature T 面部 ≤T 面部设定9 , where T 面部设定8 <T 面部设定9 ; If T 面部 ≤T 面部设定9 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定12 , where T 室内设定12 <T 室内设定11 ; If T 室内 ≤T 室内设定12 , it is determined that the target temperature determination branch is the eighteenth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the eighteenth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 室内 ≤T 室内设定12 , it is determined that the target temperature determination branch is the nineteenth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the nineteenth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 面部 ≤T 面部设定9 , then further determine whether the facial temperature T 面部 ≤T 面部设定10 , where T 面部设定9 <T 面部设定10 ; If T 面部 ≤T 面部设定10 , determining that the target temperature determination branch is the twentieth temperature determination branch, obtaining an output value of the user individual temperature sensation decision tree model corresponding to the twentieth temperature determination branch as a hot output value, and then the temperature sensation state of the target user is hot; If T is not satisfied 面部 ≤T 面部设定10 , it is determined that the target temperature determination branch is the twenty-first temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the twenty-first temperature determination branch is a neutral output value, and the temperature sensation state of the target user is neutral.

8. The air conditioner according to claim 7, characterized in that: The controller is configured to: If T is not satisfied 室内 ≤T 室内设定11 , then further determine whether the facial temperature T 面部 ≤T 面部设定11 , where T 面部设定11 <T 面部设定9 ; If T 面部 ≤T 面部设定11 , then further determine whether the facial temperature T 面部 ≤T 面部设定12 , where T 面部设定12 <T 面部设定11 ; If T 面部 ≤T 面部设定12 , it is determined that the target temperature determination branch is the twenty-second temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the twenty-second temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 面部 ≤T 面部设定12 , it is determined that the target temperature determination branch is the twenty-third temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the twenty-third temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 面部 ≤T 面部设定11 , then further determine whether the facial temperature T 面部 ≤T 面部设定13 , where T 面部设定12 <T 面部设定13 ; If T 面部 ≤T 面部设定13 , it is determined that the target temperature determination branch is the twenty-fourth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the twenty-fourth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 面部 ≤T 面部设定13 , then it is determined that the target temperature determination branch is the twenty-fifth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the twenty-fifth temperature determination branch is a neutral output value, and the temperature sensation state of the target user is neutral.

9. 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1 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定13 , where T 室内设定1 <T 室内设定13 ; If T 室内 ≤T 室内设定13 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定14 , where T 室内设定14 <T 室内设定13 ; If T 室内 ≤T 室内设定14 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定15 , where T 室内设定15 <T 室内设定14 ; If T 室内 ≤T 室内设定15 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定16 , where T 室内设定16 <T 室内设定15 ; If T 室内 ≤T 室内设定16 , then further determine whether the facial temperature T 面部 ≤T 面部设定14 , where T 面部设定13 <T 面部设定14 ; If T 面部 ≤T 面部设定14 , it is determined that the target temperature determination branch is the twenty-sixth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the twenty-sixth temperature determination branch is obtained as a hot output value, and the temperature sensation state of the target user is hot; If T is not satisfied 面部 ≤T 面部设定14 , it is determined that the target temperature determination branch is the twenty-seventh temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the twenty-seventh temperature determination branch is a neutral output value, and the temperature sensation state of the target user is neutral.

10. The air conditioner according to claim 9, characterized in that: The controller is configured to: If T is not satisfied 室内 ≤T 室内设定16 , then further determine whether the facial temperature T 面部 ≤T 面部设定15 , where T 面部设定15 <T 面部设定14 ; If T 面部 ≤T 面部设定15 , it is determined that the target temperature determination branch is the twenty-eighth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the twenty-eighth temperature determination branch is obtained as a hot output value, and the temperature sensation state of the target user is hot; If T is not satisfied 面部 ≤T 面部设定15 , then it is determined that the target temperature determination branch is the twenty-ninth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the twenty-ninth temperature determination branch is obtained as a hot output value, and the temperature sensation state of the target user is hot.

11. The air conditioner according to claim 9, characterized in that: The controller is configured to: If T is not satisfied 室内 ≤T 室内设定15 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定17 , where T 室内设定15 <T 室内设定17 ; If T 室内 ≤T 室内设定17 , then further determine whether the facial temperature T 面部 ≤T 面部设定16 , where T 面部设定16 <T 面部设定14 ; If T 面部 ≤T 面部设定16 , it is determined that the target temperature determination branch is the 30th temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the 30th temperature determination branch is obtained as a hot output value, and the temperature sensation state of the target user is hot; If T is not satisfied 面部 ≤T 面部设定16 , it is determined that the target temperature determination branch is the thirty-first temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the thirty-first temperature determination branch is obtained as a hot output value, and the temperature sensation state of the target user is hot; If T is not satisfied 室内 ≤T 室内设定17 , then further determine whether the facial temperature T 面部 ≤T 面部设定17 , where T 面部设定16 <T 面部设定17 ; If T 面部 ≤T 面部设定17 , it is determined that the target temperature determination branch is the thirty-second temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the thirty-second temperature determination branch is obtained as a hot output value, and the temperature sensation state of the target user is hot; If T is not satisfied 面部 ≤T 面部设定17 , it is determined that the target temperature determination branch is the thirty-third temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the thirty-third temperature determination branch is a neutral output value, and the temperature sensation state of the target user is neutral.

12. The air conditioner according to claim 9, characterized in that: The controller is configured to: If T is not satisfied 室内 ≤T 室内设定14 , then further determine whether the facial temperature T 面部 ≤T 面部设定18 , where T 面部设定18 <T 面部设定14 ; If T 面部 ≤T 面部设定18 , it is determined that the target temperature determination branch is the thirty-fourth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the thirty-fourth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 面部 ≤T 面部设定18 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定18 , where T 室内设定14 <T 室内设定18 ; If T 室内 ≤T 室内设定18 , it is determined that the target temperature determination branch is the thirty-fifth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the thirty-fifth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 室内 ≤T 室内设定18 , it is determined that the target temperature determination branch is the thirty-sixth temperature determination branch, and the output value of the user's individual temperature perception decision tree model corresponding to the thirty-sixth temperature determination branch is a hot output value, then the temperature perception state of the target user is hot.

13. The air conditioner according to claim 9, characterized in that: The controller is configured to: If T is not satisfied 室内 ≤T 室内设定13 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定19 , where T 室内设定13 <T 室内设定19 ; If T 室内 ≤T 室内设定19 , then further determine whether the facial temperature T 面部 ≤T 面部设定19 , where T 面部设定19 <T 面部设定14 ; If T 面部 ≤T 面部设定19 , then further determine whether the facial temperature T 面部 ≤T 面部设定20 , where T 面部设定20 <T 面部设定19 ; If T 面部 ≤T 面部设定20 , then further determine whether the facial temperature T 面部 ≤T 面部设定21 , where T 面部设定21 <T 面部设定20 ; If T 面部 ≤T 面部设定21 , it is determined that the target temperature determination branch is the thirty-seventh temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the thirty-seventh temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 面部 ≤T 面部设定21 , then it is determined that the target temperature determination branch is the thirty-eighth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the thirty-eighth temperature determination branch is obtained as a hot output value, then the temperature sensation state of the target user is hot.

14. The air conditioner according to claim 13, characterized in that: The controller is configured to: If T is not satisfied 面部 ≤T 面部设定20 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定20 , where T 室内设定20 <T 室内设定19 ; If T 室内 ≤T 室内设定20 , it is determined that the target temperature determination branch is the thirty-ninth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the thirty-ninth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 室内 ≤T 室内设定20 , then it is determined that the target temperature determination branch is the 40th temperature determination branch, and the output value of the user's individual temperature perception decision tree model corresponding to the 40th temperature determination branch is obtained as a neutral output value, and the temperature perception state of the target user is neutral.

15. The air conditioner according to claim 13, characterized in that: The controller is configured to: If T is not satisfied 面部 ≤T 面部设定19 , then further determine whether the facial temperature T 面部 ≤T 面部设定22 , where T 面部设定19 <T 面部设定22 ; If T 面部 ≤T 面部设定22 , it is determined that the target temperature determination branch is the forty-first temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the forty-first temperature determination branch is obtained as a hot output value, and the temperature sensation state of the target user is hot; If T is not satisfied 面部 ≤T 面部设定22 , then further determine whether the facial temperature T 面部 ≤T 面部设定23 , where T 面部设定22 <T 面部设定23 ; If T 面部 ≤T 面部设定23 , it is determined that the target temperature determination branch is the 42nd temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the 42nd temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 面部 ≤T 面部设定23 , then it is determined that the target temperature determination branch is the forty-third temperature determination branch, and the output value of the user's individual temperature perception decision tree model corresponding to the forty-third temperature determination branch is obtained as a hot output value, then the temperature perception state of the target user is hot.

16. 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19 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定21 , where T 室内设定19 <T 室内设定21 ; If T 室内 ≤T 室内设定21 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定22 , where T 室内设定22 <T 室内设定21 ; If T 室内 ≤T 室内设定22 , then further determine whether the facial temperature T 面部 ≤T 面部设定24 , where T 面部设定20 <T 面部设定24 ; If T 面部 ≤T 面部设定24 , it is determined that the target temperature determination branch is the 44th temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the 44th temperature determination branch is obtained as a hot output value, and the temperature sensation state of the target user is hot; If T is not satisfied 面部 ≤T 面部设定24 , it is determined that the target temperature determination branch is the 45th temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the 45th temperature determination branch is obtained as a hot output value, and the temperature sensation state of the target user is hot; If T is not satisfied 室内 ≤T 室内设定22 , then further determine whether the facial temperature T 面部 ≤T 面部设定25 , where T 面部设定24 <T 面部设定25 ; If T 面部 ≤T 面部设定25 , it is determined that the target temperature determination branch is the 46th temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the 46th temperature determination branch is obtained as a hot output value, and the temperature sensation state of the target user is hot; If T is not satisfied 面部 ≤T 面部设定25 , then it is determined that the target temperature determination branch is the forty-seventh temperature determination branch, and the output value of the user's individual temperature sensation decision tree model corresponding to the forty-seventh temperature determination branch is obtained as a hot output value, then the temperature sensation state of the target user is hot.

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21 , then further determine whether the facial temperature T 面部 ≤T 面部设定26 , where T 面部设定25 <T 面部设定26 ; If T 面部 ≤T 面部设定26 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定23 , where T 室内设定21 <T 室内设定23 ; If T 室内 ≤T 室内设定23 , it is determined that the target temperature determination branch is the 48th temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the 48th temperature determination branch is obtained as a hot output value, and the temperature sensation state of the target user is hot; If T is not satisfied 室内 ≤T 室内设定23 , it is determined that the target temperature determination branch is the 49th temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the 49th temperature determination branch is obtained as a hot output value, and the temperature sensation state of the target user is hot; If T is not satisfied 面部 ≤T 面部设定26 , then further determine whether the indoor environment temperature T 室内 ≤T 室内设定24 , where T 室内设定21 <T 室内设定24 ; If T 室内 ≤T 室内设定24 , it is determined that the target temperature determination branch is the fiftieth temperature determination branch, and the output value of the user individual temperature sensation decision tree model corresponding to the fiftieth temperature determination branch is obtained as a neutral output value, and the temperature sensation state of the target user is neutral; If T is not satisfied 室内 ≤T 室内设定24 , then it is determined that the target temperature determination branch is the fifty-first temperature determination branch, and the output value of the user's individual temperature sensation decision tree model corresponding to the fifty-first temperature determination branch is a neutral output value, and the temperature sensation state of the target user is neutral.

18. The air conditioner according to any one of claims 1 to 17, characterized in that: The controller is also configured to: If it is determined that the temperature sensation state of the target user is relatively cold, then the currently set target temperature is increased; Determining that the temperature and coldness sensation state of the target user is neutral, maintaining the currently set target temperature; If it is determined that the temperature sensation state of the target user is hot, the currently set target temperature is lowered.

19. The air conditioner according to any one of claims 1 to 17, characterized in that: The controller is also configured to: The air conditioner is in heating mode, and if the temperature sensation of the target user is determined to be cold for a preset number of consecutive times, the indoor fan speed of the air conditioner is increased; The air conditioner is in heating mode, and if the temperature sensation of the target user is determined to be hot for the preset number of times in a row, the indoor fan speed of the air conditioner is reduced; The air conditioner is in cooling mode, and if the temperature sensation of the target user is determined to be cold for the preset number of times in a row, the indoor fan speed of the air conditioner is reduced; The air conditioner is in cooling mode, and if the temperature sensation of the target user is determined to be hot for the preset number of times in a row, the indoor fan speed of the air conditioner is increased.

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

21. A method for controlling an air conditioner, characterized in that: include: Receive the target user's facial temperature and indoor ambient temperature; The facial temperature and the indoor environment temperature are input into a user individual temperature and coldness decision tree model, the temperature and coldness state of the target user is determined according to the output value of the user individual temperature and coldness decision tree model, the currently set target temperature is adjusted according to the temperature and coldness state, and the operation of the air conditioner is controlled according to the adjusted target temperature, wherein at least six layers of temperature decision condition sets are configured in the user individual temperature and coldness decision tree model, and 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 includes: a decision condition based on the indoor environment temperature, the second layer of temperature decision condition set includes: a decision condition based on the facial temperature and the indoor environment temperature, the third layer of temperature decision condition set includes: a decision condition based on the indoor environment temperature, 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 seven indoor environment temperatures, and the sixth layer of temperature decision condition set includes: a decision condition based on sixteen facial temperatures and six indoor environment temperatures; Determining the temperature and coldness state of the target user according to the output value of the user's individual temperature and coldness decision tree model; The currently set target temperature is adjusted according to the temperature and coldness state, and the operation of the air conditioner is controlled according to the adjusted target temperature.

Images