Air conditioner and parameter control method of air conditioner

Abstract

The embodiment of the invention relates to an air conditioner, a parameter control method of the air conditioner and a controller of the air conditioner. The controller of the air conditioner is configured to obtain a first face area temperature corresponding to a target user and obtain a first indoor environment temperature; a temperature sensing result corresponding to the target user is determined through a temperature sensing recognition model according to the first face area temperature and the first indoor environment temperature; a first-layer decision condition of the temperature sensing recognition model is whether the indoor environment temperature is smaller than or equal to a first environment temperature threshold value, and a second-layer decision condition of the temperature sensing recognition model comprises whether the cheek temperature is smaller than or equal to a first cheek temperature threshold value and whether the indoor environment temperature is smaller than or equal to a second environment temperature threshold value; the second environment temperature threshold value is greater than the first environment temperature threshold value; and according to the working mode of the air conditioner and the temperature sensing result of each user, target operation parameters of the air conditioner are determined. According to the air conditioner, the operation parameters of the air conditioner can be accurately and intelligently adjusted, and therefore the comfort requirement of a user is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to an air conditioner and a parameter control method of the air conditioner. BACKGROUND

[0002] With the continuous improvement of people's living standards, the air conditioner has become one of the indispensable household appliances in modern life. The main function of the air conditioner is to adjust the indoor environment temperature to provide a comfortable indoor environment for users. At present, the parameter adjustment of the air conditioner is mainly realized by manually setting the temperature by the user or through the intelligent mode, and the intelligent degree of the air conditioner is low, which affects the user's use experience. SUMMARY

[0003] The embodiments of the present application disclose an air conditioner and a parameter control method of the air conditioner, which can accurately and intelligently adjust the operating parameters of the air conditioner, so as to meet the comfort requirements of users and improve the use experience of users.

[0004] The embodiments of the present application disclose an air conditioner, comprising:

[0005] A refrigerant circulation loop comprising a compressor, an outdoor heat exchanger and an indoor heat exchanger connected in sequence, the refrigerant circulation loop being configured to circulate refrigerant;

[0006] A temperature sensor configured to collect an indoor environment temperature corresponding to an indoor environment in which the air conditioner is located;

[0007] An infrared sensor configured to collect a face area temperature corresponding to at least one user in the indoor environment; the face area temperature includes a cheek temperature;

[0008] A controller configured to:

[0009] Obtain a first face area temperature corresponding to a target user collected by the infrared sensor, and obtain a first indoor environment temperature collected by the temperature sensor; the target user is any user in the indoor environment;

[0010] input the first facial region temperature and the first indoor environment temperature into a thermal sensation recognition model, determine the thermal sensation result corresponding to the target user according to the first facial region temperature and the first indoor environment temperature through the thermal sensation recognition model, a first layer decision condition of the thermal sensation recognition model is whether the indoor environment temperature is less than or equal to a first environment temperature threshold, a second layer decision condition of the thermal sensation recognition model includes whether the cheek temperature is less than or equal to a first cheek temperature threshold and whether the indoor environment temperature is less than or equal to a second environment temperature threshold, the second environment temperature threshold is greater than the first environment temperature threshold, and the thermal sensation result includes a thermal sensation category, the thermal sensation category includes a first thermal sensation, a second thermal sensation or a third thermal sensation, the first thermal sensation indicates that the temperature sensation of the user is cold, the second thermal sensation indicates that the temperature sensation of the user is hot, and the third thermal sensation indicates that the temperature sensation of the user is neutral.

[0011] determine the target operation parameter corresponding to the air conditioner according to at least one of the working mode of the air conditioner and the thermal sensation result corresponding to at least one user in the indoor environment.

[0012] In the embodiments of the present application, the controller obtains the facial region temperature and the indoor environment temperature of the user, preliminarily judges through the first layer decision condition (whether the indoor environment temperature is less than or equal to the first environment temperature threshold) of the thermal sensation recognition model, further adjusts the recognition result of the first layer by combining the partial facial region temperature (cheek temperature) of the user and the further indoor environment temperature (second environment temperature threshold judgment), can more accurately quantify the thermal sensation of the individual user, forms a thermal sensation decision branch, so that the controller of the air conditioner can accurately identify and predict the thermal sensation result of each user in the indoor environment, and according to the accurate thermal sensation result corresponding to at least one user, the controller adjusts the operation parameter of the air conditioner, so that the indoor environment temperature can more accurately meet the temperature demand of at least one user in the indoor environment, so that the air conditioner can meet the comfort demand of the general public and also realize the individual comfort demand of each user.

[0013] As an optional implementation, the determination of the thermal sensation result corresponding to the target user through the thermal sensation recognition model according to the first facial region temperature and the first indoor environment temperature includes:

[0014] determining whether the first indoor environment temperature is less than or equal to the first environment temperature threshold through the thermal sensation recognition model;

[0015] if the first indoor environment temperature is less than or equal to the first environment temperature threshold, determining whether the first cheek temperature in the first facial region temperature is less than or equal to the first cheek temperature threshold through the thermal sensation recognition model;

[0016] if the first indoor environment temperature is greater than the first environment temperature threshold, determining, by the thermal sensation recognition model, whether the first indoor environment temperature is less than or equal to the second environment temperature threshold;

[0017] in a case where the first indoor environment temperature is less than or equal to the second environment temperature threshold, determining, by the thermal sensation recognition model, that the thermal sensation result corresponding to the target user is the second thermal sensation or the third thermal sensation;

[0018] in a case where the first indoor environment temperature is less than or equal to the second environment temperature threshold, determining, by the thermal sensation recognition model, that the thermal sensation result corresponding to the target user is the second thermal sensation or the third thermal sensation;

[0019] in a case where the first indoor environment temperature is greater than the second environment temperature threshold, determining, by the thermal sensation recognition model, that the thermal sensation result corresponding to the target user is the third thermal sensation.

[0020] In the embodiments of the application, the first indoor environment temperature and the first cheek temperature are determined by the thermal sensation recognition model in a layered manner. In a case where the first indoor environment temperature is low (less than or equal to the first environment temperature threshold) and the first cheek temperature is less than or equal to the first cheek temperature threshold, it is determined that the thermal sensation result of the target user is the cold-biased thermal sensation or the neutral thermal sensation. In a case where the first indoor environment temperature is between the first environment temperature threshold and the second environment temperature threshold, it is determined that the thermal sensation result of the target user is the hot-biased thermal sensation or the neutral thermal sensation. In a case where the first indoor environment temperature is high (greater than the second environment temperature threshold), it is directly determined that the thermal sensation result of the target user is neutral. The thermal sensation recognition model generates specific thermal sensation prediction branches for different environmental conditions and user characteristics, which can avoid the limitations of a single temperature threshold, and the thermal sensation result determined by the thermal sensation recognition model is more in line with actual environmental changes and the temperature needs of the target user, thereby improving the recognition accuracy of the thermal sensation of the user.

[0021] As an optional implementation, the facial region temperature includes a nose temperature; the third layer decision condition of the thermal sensation recognition model includes whether the nose temperature is less than or equal to a first nose temperature threshold, whether the indoor environment temperature is less than or equal to a third environment temperature threshold, and whether the indoor environment temperature is less than or equal to a fourth environment temperature threshold, the third environment temperature threshold being less than the first environment temperature threshold, and the fourth environment temperature threshold being greater than the first environment temperature threshold and less than the second environment temperature threshold;

[0022] after determining, by the thermal sensation recognition model, whether the first cheek temperature in the first facial region temperature is less than or equal to the first cheek temperature threshold, the controller is further configured to:

[0023] if the first cheek temperature is greater than the first cheek temperature threshold, determining, by the thermal sensation recognition model, whether the first indoor environment temperature is less than or equal to the third environment temperature threshold;

[0024] in a case where the first indoor environment temperature is less than or equal to the third environment temperature threshold, determining, by the thermal sensation recognition model, that the thermal sensation result corresponding to the target user is the first thermal sensation or the third thermal sensation;

[0025] in a case where the first indoor environment temperature is greater than the third environment temperature threshold, determining, by the thermal sensation recognition model, that the thermal sensation result corresponding to the target user is the second thermal sensation or the third thermal sensation.

[0026] In the embodiments of the application, the third layer decision condition of the thermal sensation recognition model determines whether the indoor environment temperature is less than or equal to the third environment temperature threshold, so that the thermal sensation recognition model can further determine the thermal sensation result of the target user when the first cheek temperature of the target user is greater than the first cheek temperature threshold. In addition, because the cheek temperature and the nose temperature have different sensitivities to the change of the environment temperature, the third layer decision condition of the thermal sensation recognition model further determines the nose temperature in the face, so as to capture the thermal response difference of different regions of the face of the user, so that the thermal sensation result obtained by the thermal sensation recognition model is closer to the actual state of the human body of the target user, reduces the false determination of a single facial region, and thus obtains an accurate thermal sensation result of the target user.

[0027] As an optional implementation, the thermal sensation recognition model includes five layers of decision conditions, and a total of 23 decision branches; the leaf node corresponding to each decision branch is a thermal sensation result.

[0028] As an optional implementation, the facial region temperature includes a nose temperature and a forehead temperature; the fourth layer decision condition of the thermal sensation recognition model includes whether the indoor environment temperature is less than or equal to a fifth environment temperature threshold, whether the indoor environment temperature is less than or equal to a sixth environment temperature threshold, whether the forehead temperature is less than or equal to a first forehead temperature threshold, whether the cheek temperature is less than or equal to a second cheek temperature threshold, whether the nose temperature is less than or equal to a second nose temperature threshold, and whether the forehead temperature is less than or equal to a second forehead temperature threshold.

[0029] wherein the first forehead temperature threshold is less than the second forehead temperature threshold; the second cheek temperature threshold is greater than the first cheek temperature threshold; the second nose temperature threshold is greater than the first nose temperature threshold; the fifth environment temperature threshold is less than the third environment temperature threshold; and the sixth environment temperature threshold is less than the fifth environment temperature threshold.

[0030] In the embodiment of the application, the fourth layer decision condition of the thermal sensation recognition model includes the judgment of the indoor environment temperature, the forehead temperature, the cheek temperature and the nose temperature, so that the thermal sensation recognition model can capture the differences between the different areas of the face, the current indoor environment temperature and each temperature threshold, and obtain the accurate thermal sensation result of the target user through the cross judgment of each temperature data.

[0031] As an optional implementation, the facial region temperature includes a nose temperature, a forehead temperature and an eye temperature; and the fifth layer decision condition of the thermal sensation recognition model includes whether the nose temperature is less than or equal to a third nose temperature threshold, whether the nose temperature is less than or equal to a fourth nose temperature threshold, whether the forehead temperature is less than or equal to a third forehead temperature threshold, whether the nose temperature is less than or equal to a fifth nose temperature threshold, whether the cheek temperature is less than or equal to a third cheek temperature threshold, whether the eye temperature is less than or equal to a first eye temperature threshold, whether the nose temperature is less than or equal to a sixth nose temperature threshold, whether the forehead temperature is less than or equal to a fourth forehead temperature threshold, whether the indoor environment temperature is less than or equal to a seventh environment temperature threshold, and whether the nose temperature is less than or equal to a seventh nose temperature threshold.

[0032] In the embodiment of the application, the fifth layer decision condition of the thermal sensation recognition model includes the judgment of the indoor environment temperature, the forehead temperature, the cheek temperature, the nose temperature and the eye temperature, and the thermal sensation recognition model can identify different situations from multiple dimensions and accurately obtain the thermal sensation result of the target user in each situation.

[0033] In the embodiment of the application, the fifth layer decision condition of the thermal sensation recognition model includes the judgment of the indoor environment temperature, the forehead temperature, the cheek temperature, the nose temperature and the eye temperature, and the thermal sensation recognition model can identify different situations from multiple dimensions and accurately obtain the thermal sensation result of the target user in each situation.

[0034] As an optional implementation, the obtaining the first facial region temperature corresponding to the target user collected by the infrared sensor and the first indoor environment temperature collected by the temperature sensor includes:

[0035] acquire a first facial region temperature corresponding to the target user collected by the infrared sensor in a current detection period, and acquire a first indoor environment temperature collected by the temperature sensor in the current detection period;

[0036] The first facial region temperature and the first indoor environment temperature are input into a temperature-sensation recognition model, and a temperature-sensation result corresponding to the target user is determined by the temperature-sensation recognition model according to the first facial region temperature and the first indoor environment temperature.

[0037] The first facial region temperature and the first indoor environment temperature are input into a temperature-sensation recognition model, and a first temperature-sensation result corresponding to the target user and the current detection period is determined by the temperature-sensation recognition model according to the first facial region temperature and the first indoor environment temperature.

[0038] The temperature-sensation result corresponding to the target user is determined according to first temperature-sensation results corresponding to the target user and at least two detection periods, respectively.

[0039] In the embodiment of the application, the air conditioner can reduce random errors of single temperature acquisition and accidental results of single temperature-sensation recognition model by acquiring first temperature-sensation results corresponding to the target user in multiple detection periods and fusing the first temperature-sensation results of the multiple detection periods, so as to ensure the accuracy and stability of the final temperature-sensation result corresponding to the target user.

[0040] As an optional implementation, the temperature-sensation result further includes a temperature-sensation value; and determining a target operating parameter of the air conditioner according to the working mode of the air conditioner and the temperature-sensation results corresponding to the at least one user respectively includes:

[0041] determining a temperature-sensation value range to which each temperature-sensation value belongs according to the temperature-sensation values corresponding to the at least one user respectively;

[0042] determining a temperature compensation value according to each temperature-sensation value range and the working mode of the air conditioner;

[0043] compensating a current set temperature of the air conditioner based on the temperature compensation value to obtain a target temperature;

[0044] adjusting the target operating parameter of the air conditioner according to the target temperature.

[0045] In the embodiment of the application, the air conditioner maps the thermal sensation values of each user to a corresponding numerical range, so that the thermal sensation states of each user are quantitatively classified, which provides a basis for determining a temperature compensation value, and the temperature compensation value is determined according to the current mode of the air conditioner, the current set temperature is corrected in real time based on the temperature compensation value, the target temperature that takes into account the group comfort and the individual thermal sensation is obtained, and the target operating parameter is adjusted according to the target temperature, so that the air conditioner can meet the comfort needs of the general public while also achieving the individual comfort needs of each user.

[0046] As an optional implementation, the air conditioner further comprises an air supply assembly configured to deliver air flow to the indoor environment, and an air supply range covered by the air supply assembly is divided into a plurality of air supply areas, and the target operating parameter comprises an air supply direction of the air supply assembly.

[0047] The target operating parameter of the air conditioner is determined according to the working mode of the air conditioner and the thermal sensation results of the at least one user respectively, comprising:

[0048] The position information of the at least one user is obtained respectively;

[0049] The air supply area corresponding to each user is determined according to the position information of each user;

[0050] The target thermal sensation of each air supply area is determined according to the thermal sensation results of each user contained in each air supply area;

[0051] The target air supply area is determined from the plurality of air supply areas based on the working mode of the air conditioner, the target thermal sensation of each air supply area, and the number of users contained in each air supply area;

[0052] The air supply direction of the air supply assembly is adjusted according to the target air supply area, so that the air supply assembly delivers air flow towards the target air supply area.

[0053] In the embodiment of the application, the target air supply area is selected from the plurality of air supply areas by comprehensively considering the target thermal sensation of each air supply area, the number of users, and the working mode of the air conditioner, and the air supply assembly delivers air flow towards the target air supply area, so that the thermal sensation needs of the users in the target air supply area are met, and the air conditioner can achieve precise air supply and avoid invalid energy consumption caused by global air supply.

[0054] The embodiment of the application discloses a parameter control method of an air conditioner, comprising:

[0055] obtain a first facial region temperature corresponding to a target user collected by an infrared sensor, and obtain a first indoor environment temperature collected by a temperature sensor; the target user is any user in an indoor environment where the air conditioner is located;

[0056] input the first facial region temperature and the first indoor environment temperature into a thermal sensation recognition model, determine a thermal sensation result corresponding to the target user according to the first facial region temperature and the first indoor environment temperature through the thermal sensation recognition model; a first layer decision condition of the thermal sensation recognition model is whether the indoor environment temperature is less than or equal to a first environment temperature threshold, a second layer decision condition of the thermal sensation recognition model includes whether the cheek temperature is less than or equal to a first cheek temperature threshold and whether the indoor environment temperature is less than or equal to a second environment temperature threshold, the second environment temperature threshold is greater than the first environment temperature threshold; the thermal sensation result includes a thermal sensation category, the thermal sensation category includes a first thermal sensation, a second thermal sensation or a third thermal sensation, the first thermal sensation indicates that the temperature sensation of the user is cold, the second thermal sensation indicates that the temperature sensation of the user is hot, and the third thermal sensation indicates that the temperature sensation of the user is neutral;

[0057] determine a target operating parameter corresponding to the air conditioner according to the operating mode of the air conditioner and the thermal sensation result corresponding to the at least one user.

[0058] In the embodiments of the present application, the air conditioner obtains the facial region temperature and the indoor environment temperature of the user, preliminarily judges through the first layer decision condition (whether the indoor environment temperature is less than or equal to the first environment temperature threshold) of the thermal sensation recognition model, further adjusts the recognition result of the first layer by combining the partial facial region temperature (cheek temperature) of the user and the further indoor environment temperature (second environment temperature threshold judgment), can more accurately quantify the thermal sensation of the individual user, forms a thermal sensation decision branch, so that the controller of the air conditioner can accurately identify and predict the thermal sensation result of each user in the indoor environment; and the controller adjusts the operating parameter of the air conditioner according to the accurate thermal sensation result corresponding to the at least one user, so that the indoor environment temperature can more accurately meet the temperature demand of the at least one user in the indoor environment, so that the air conditioner can meet the comfort demand of the general public and also realize the individual comfort demand of each user. BRIEF DESCRIPTION OF DRAWINGS

[0059] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0060] Figure 1An application scenario of an air conditioner in an embodiment;

[0061] Figure 2 A control flowchart of an air conditioner in an embodiment;

[0062] Figure 3 A control logic diagram of a controller in an embodiment;

[0063] Figure 4 A schematic diagram of an addressing process of a controller in a cooling mode in an embodiment;

[0064] Figure 5 A schematic diagram of an addressing process of a controller in a heating mode in an embodiment;

[0065] Figure 6 A structural block diagram of an air conditioner in an embodiment;

[0066] Figure 7 A schematic diagram of a humidity change curve in an embodiment;

[0067] Figure 8 A control flowchart of an indoor fan in a cooling mode in an embodiment;

[0068] Figure 9 A control flowchart of a controller in an embodiment;

[0069] Figure 10 A control flowchart of a controller in another embodiment;

[0070] Figure 11A A schematic diagram of a partial decision branch of a temperature sensing recognition model in an embodiment;

[0071] Figure 11B A schematic diagram of a partial decision branch of a temperature sensing recognition model in an embodiment;

[0072] Figure 11C A schematic diagram of a partial decision branch of a temperature sensing recognition model in an embodiment;

[0073] Figure 12 A control flowchart of a controller in an embodiment;

[0074] Figure 13 A control flowchart of a controller in another embodiment;

[0075] Figure 14 A division schematic diagram of a blowing range covered by a blowing assembly in an embodiment;

[0076] Figure 15 A control flowchart of a controller in an embodiment;

[0077] Figure 16 a flow chart of a parameter control method of an air conditioner in an embodiment;

[0078] Figure 17 a flow chart of a parameter control method of an air conditioner in another embodiment;

[0079] Figure 18 a block diagram of a parameter control device of an air conditioner in an embodiment. DETAILED DESCRIPTION

[0080] The technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0081] It should be noted that the terms "comprising" and "having" and any variations thereof in the embodiments of the present application and the drawings are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally further include steps or units not listed or can optionally further include other steps or units inherent to the process, method, product or device.

[0082] It can be understood that the terms "first", "second" and the like used in the present application can be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element. For example, without departing from the scope of the present application, the first temperature sensor can be referred to as the second temperature sensor, and similarly, the second temperature sensor can be referred to as the first temperature sensor. The first temperature sensor and the second temperature sensor are two different temperature sensor categories.

[0083] Figure 1 An application scenario diagram of an air conditioner in an embodiment. As shown in Figure 1 The air conditioner 100 can be applied in an indoor environment 110, and by adjusting the operating parameters of the air conditioner 100, the environmental temperature in the indoor environment 110 is controlled to provide a suitable temperature for at least one user 120 in the indoor environment 110.

[0084] Optionally, the air conditioner 100 can include but is not limited to a floor air conditioner, a central air conditioner, a wall-mounted air conditioner, an embedded fan coil, a top-mounted air conditioner for a high-speed rail car, etc.

[0085] The indoor environment 110 refers to a closed or semi-closed space provided with the air conditioner. The indoor environment 110 can include, but is not limited to, an office scenario, a library scenario, a high-speed rail carriage scenario, a hospital room scenario, a school classroom scenario, and the like.

[0086] Optionally, the distributed position of the air conditioner 100 in the indoor environment 110 can be arranged at the center of the indoor environment 110 (as shown in FIG. 1A), or arranged at each corner position of the indoor environment 110, or arranged at any position, which is not limited herein. Figure 1

[0087] It should be noted that the number of users 120 in the indoor environment 110 is not limited herein, which can be five users 120 as shown in FIG. 1A, or one user, two users, ten users, or even no user in the indoor environment 110. In addition, the distributed position of at least one user 120 in the indoor environment 110 can be uniformly distributed according to the number of users, or randomly distributed, or changed over time, which is not limited herein. Figure 1

[0088] In the prior art, the air conditioner is usually designed to control comfort by using a specified single temperature index and a specified single humidity index. However, the adjustment of the air conditioner according to the single temperature index and the single humidity index does not fully consider various factors affecting human thermal sensation, such as air temperature, air relative humidity, wind speed, mean radiant temperature, human activity intensity, clothing thermal resistance, human metabolic rate, and the like. Therefore, the single temperature and single humidity index adjustment cannot meet the needs of users.

[0089] In addition, the air conditioner usually takes the whole indoor environment as a control unit, which cannot meet the individual differentiated needs. However, due to different factors such as the physical condition, activity intensity, and clothing of each user, the needs for temperature are also different. For example, in an office scenario, some employees may hope that the temperature of the indoor environment is reduced because of faster metabolism, while other employees may hope that the temperature of the indoor environment is increased because of weaker constitution. Therefore, the air conditioner cannot meet the individualized needs of different users, and the individual differences of users in the indoor environment are weakened, which cannot make all users in the indoor environment feel comfortable, and also has certain limitations in the identification and adjustment control of individual thermal comfort.

[0090] Embodiments of the present application disclose an air conditioner and a parameter control method of the air conditioner, which can accurately and intelligently adjust the operating parameters of the air conditioner, so as to meet the comfort requirements of users and improve the use experience of users.

[0091] ​​In the present application, the comfort mode of the air conditioner can be divided into two stages (initial comfort stage and stable comfort stage); in the initial comfort stage, the global rapid temperature adjustment is carried out with the PMV (Predicted Mean Vote) model as the core, the PMV is selected as-0.5 in the cooling mode and as +0.5 in the heating mode, the air conditioner determines the basic set temperature according to the PMV comfort interval and the initial humidity, and determines the compensation value according to the outdoor ambient temperature, the clothing thermal resistance and the metabolic rate, and finally generates the initial set temperature, and controls the operation parameters of the air conditioner to make the indoor environment temperature quickly reach the boundary value close to the target comfort interval; after entering the stable comfort stage, the PMV is selected in the interval of [-0.5, 0.5], and the temperature sensation of each user in the indoor environment is introduced to adjust the position of the air deflector and the set temperature, so as to realize the precise control of individual comfort.

[0092] As shown in Figure 2 , the total control of the air conditioner is as follows: when the air conditioner is running, enter the comfort stage, activate the functions of each sensor, the controller of the air conditioner collects the indoor environment temperature through the temperature sensor and collects the indoor environment humidity through the humidity sensor, and then the controller calculates the target temperature or receives the target temperature set by the user, (in the stable comfort stage, the controller will also determine the temperature sensation of the target user based on the temperature sensation recognition model according to the face area temperature of the target user and the indoor environment temperature, and then adjust to obtain the target temperature), the controller controls the air conditioner to run according to the target operation parameters based on the target temperature, so that the indoor environment temperature can meet the individual comfort needs of each user, and the user comfort is improved.

[0093] The meanings of some terms and symbols related to the present application are introduced as shown in Table 1:

[0094] Table 1

[0095]

[0096] The following is an explanation of the initial comfort stage based on the PMV model.

[0097] In the embodiment of the present application, the air conditioner needs to rely on the temperature and humidity addressing rule to address and determine the target temperature of the initial comfort stage; the temperature and humidity addressing rule is calculated based on the human thermal sensation index PMV predicted average thermal sensation index value, and a "comfort temperature and humidity reference table (PMV value is ±0.5)" is generated through experimental calculation as a reference table for the comfort control of the air conditioner (as shown in Table 2).

[0098] Table 2 Comfort temperature and humidity reference table

[0099]

[0100] Specifically, the air conditioner detects outdoor environment temperature Tout, indoor environment temperature Tin and indoor relative humidity Rh through temperature sensors. According to the temperature zone corresponding to the obtained outdoor environment temperature Tout, different temperature compensation values T_comp are obtained in combination with clothing thermal resistance clo and human metabolic rate M, and the specific working mode (cooling / heating / air supply) of the air conditioner is determined. Then, according to the comfort temperature and humidity reference table, the obtained indoor relative humidity Rh is used as a pointer to address in the reference table, and the target set temperature Ts_com in the subsequent stable comfort stage is determined, so that the air conditioner runs with Ts_com as the target set value.

[0101] In some embodiments, for the initial comfort stage, the temperature and humidity addressing from the beginning always addresses around six human thermal sensation factors of PMV value: environmental parameters (air temperature, air relative humidity, wind speed, mean radiant temperature) and human parameters (human metabolic rate, clothing thermal resistance), with human comfort control as the core.

[0102] In some embodiments, the outdoor ring environment temperature Tout is re-determined every 2h, and a new temperature zone is determined. If it is still in the original operating temperature zone, the original mode and stage operation is continued; if it is in the new temperature zone, the original working mode is interrupted, and a new working mode is entered in combination with the indoor ring temperature Tin and indoor relative humidity Rh of the new temperature zone. If the indoor sensor fails or overflows, and there is no humidity sensor, Rh is defaulted as 65%.

[0103] Specifically, as shown in Figure 3 The air conditioner obtains outdoor environment temperature Tout, determines the temperature zone to which Tout belongs, and determines the first temperature zone in the case of Tout≤13℃, the second temperature zone in the case of 13℃

[0104] Table 3 Corresponding relationship of clothing thermal resistance, human metabolic rate and temperature compensation value

[0105] Tout(℃) Clothing thermal resistance clo Human metabolic rate M T_(℃) >24 (4th temperature zone) 0.5 1.2 0 >18, ≤24 (3rd temperature zone) 0.8 1.2 -2 >13, ≤18 (second temperature zone) 1.0 1.2 -3 ≤13 (1st temperature zone) 1.0 1.2 -3

[0106] In some embodiments, the controller of the air conditioner can be addressed according to the working mode of the air conditioner to determine the target set temperature Ts_initial of the initial comfort stage and the target set temperature Ts_comfort of the stable comfort stage.

[0107] Specifically, taking the cooling mode as an example, as shown in Figure 4 , if Rh < 30% (the lower limit of the comfort humidity in the comfort table), the lowest temperature corresponding to Rh 30% in the comfort table is Ts_initial (Ts_initial = 24.5°C); if Rh > 65% (the upper limit of the comfort humidity in the comfort table), the lowest temperature corresponding to Rh 65% in the comfort table is Ts_initial (Ts_initial = 23.5°C); if 65% ≥ Rh ≥ 30% (the upper and lower limits of the comfort humidity in the comfort table), the lowest temperature corresponding to the closest humidity in the comfort table is Ts_initial (for example, Rh = 43%, the closest humidity in the comfort table is Rh 45%, and the lowest temperature corresponding to Rh 45% is Ts_initial = 24°C). The average value (25.25°C) of the sum of the upper limit (26.5°C) and the lower limit (24°C) of the comfort humidity corresponding to Rh = 50% in the comfort table is taken as Ts_comfort, which is 25.5°C by default.

[0108] Specifically, taking the cooling mode as an example, as shown in Figure 5 , if Rh < 30% (the lower limit of the comfort humidity in the comfort table), the lowest temperature corresponding to Rh 30% in the comfort table is Ts_initial (Ts_initial = 24.5°C); if Rh > 65% (the upper limit of the comfort humidity in the comfort table), the lowest temperature corresponding to Rh 65% in the comfort table is Ts_initial (Ts_initial = 23.5°C); if 65% ≥ Rh ≥ 30% (the upper and lower limits of the comfort humidity in the comfort table), the lowest temperature corresponding to the closest humidity in the comfort table is Ts_initial (for example, Rh = 43%, the closest humidity in the comfort table is Rh 45%, and the lowest temperature corresponding to Rh 45% is Ts_initial = 24°C). The average value (25.25°C) of the sum of the upper limit (26.5°C) and the lower limit (24°C) of the comfort humidity corresponding to Rh = 50% in the comfort table is taken as Ts_comfort, which is 25.5°C by default.

[0109] Specifically, in the air supply mode of the air conditioner, no addressing operation is performed.

[0110] Figure 6 is a structural block diagram of the air conditioner in one embodiment. As shown in Figure 6 , the air conditioner 100 includes a refrigerant circulation loop 610, a temperature and humidity sensor 620, an infrared sensor 630, and a controller 640.

[0111] The refrigerant circulation loop 610 is configured to circulate the refrigerant to realize the cooling or heating function of the air conditioner 100.

[0112] Optionally, Figure 6 As shown, the refrigerant circulation loop 610 comprises a compressor 611, an outdoor heat exchanger 612 and an indoor heat exchanger 613 connected in sequence.

[0113] The outdoor heat exchanger 612 is configured to exchange heat with outdoor air; the compressor 611 is configured to compress the refrigerant from a low pressure state to a high pressure state and drive the refrigerant to circulate in the refrigerant circulation loop 610; the electronic expansion valve 113 is configured to regulate the flow of the refrigerant in the refrigerant circulation loop 610; and the indoor heat exchanger 613 is configured to exchange heat with indoor air.

[0114] Specifically, when the outdoor heat exchanger 612 of the air conditioner 100 cools the indoor environment 110, the outdoor heat exchanger 612 works as a condenser to release heat, and the indoor heat exchanger 613 works as an evaporator to absorb heat. The refrigerant is compressed by the compressor 611 into a high-temperature and high-pressure gas, flows into the outdoor heat exchanger 612 to release heat and condenses into a liquid (or a gas or a gas-liquid mixture), then flows into the indoor heat exchanger 613 to absorb heat and evaporates into a gas, and finally flows into the compressor 611 to complete a complete refrigerant circulation loop 610, thereby realizing cooling of the indoor environment.

[0115] Specifically, when the outdoor heat exchanger 612 of the air conditioner 100 heats the indoor environment 110, the outdoor heat exchanger 612 works as an evaporator to absorb heat, and the indoor heat exchanger 613 works as a condenser to release heat. The refrigerant is compressed by the compressor 611 into a high-temperature and high-pressure gas, flows into the indoor heat exchanger 612 to release heat and condenses into a liquid (or a gas or a gas-liquid mixture), then flows into the outdoor heat exchanger 612 to absorb heat and evaporates into a gas, and finally flows into the compressor 611 to complete a complete refrigerant circulation loop 610, thereby realizing heating of the indoor environment.

[0116] The temperature sensor 620 is configured to collect the indoor environment temperature corresponding to the indoor environment 110 of the air conditioner 100.

[0117] Optionally, the temperature sensor 620 can adopt a temperature sensor with high precision, fast response and long-term stability, such as a thermistor type or a thermocouple type, which can accurately measure the temperature value of the indoor environment 110.

[0118] The indoor environment temperature can reflect the actual temperature condition of the indoor environment 110 after the air conditioner 100 runs for a period of time, i.e., the temperature condition that the user 120 in the indoor environment 110 can feel, which directly affects the user's experience.

[0119] Optionally, the temperature sensor 620 can be configured to collect the indoor environment temperature corresponding to the indoor environment 110 according to a preset temperature detection period. For example, the temperature sensor 620 can collect the temperature of the indoor environment 110 once per minute, once per several minutes, or longer. By periodically collecting the indoor environment temperature, continuous change data of the indoor environment temperature can be obtained, thereby avoiding the contingency of temperature abnormalities.

[0120] Optionally, the preset temperature detection period can be a fixed value, or can be determined according to the outdoor environment temperature and / or the indoor environment temperature.

[0121] The infrared sensor 630 is configured to collect a face region temperature corresponding to at least one user in the indoor environment.

[0122] Optionally, the infrared sensor 630 can use an infrared thermal imaging camera, a thermocouple sensor array, a single-point thermocouple sensor, etc.

[0123] For example, using an infrared thermal imaging camera, the face infrared radiation is captured by a Microbolometer or a QWIP (Quantum Well Infrared Photodetector), an infrared thermal imaging frame (resolution is usually 80x60-640x512 pixels) is generated, and the face region temperature corresponding to the user is obtained.

[0124] Optionally, the face region temperature includes cheek temperature, nose temperature, forehead temperature, and eye temperature.

[0125] For example, the air conditioner can identify the human head contour from the complex background based on an improved target detection algorithm (input is an infrared thermal imaging frame, a stereo YOLOv7-tiny model), filter by a temperature threshold (e.g., 28-37°C) and screen by an area threshold (e.g., >200 pixels), and mark as a candidate region; use a PnP (Perspective-n-Point) algorithm in combination with infrared camera calibration parameters (e.g., focal length fx / fy, principal point cx / cy, distortion coefficients k1-k3, etc.) to map the two-dimensional thermal imaging coordinates to a predefined 3D face model (which can include 68 key points), generate a virtual face grid with temperature attributes; and then perform Gaussian weighted averaging (weight is inversely proportional to the Euclidean distance from the vertex to the region center) on the vertex temperatures in the grid that belong to the cheek (e.g., key points 17-22), nose (e.g., key points 27-36), forehead (e.g., key points 1-16), and eyes (e.g., key points 37-48), to calculate the quantitative temperature values of the cheek temperature, nose temperature, forehead temperature, and eye temperature.

[0126] In some embodiments, the air conditioner 100 can further include a humidity sensor configured to collect the relative humidity in the indoor environment.

[0127] In some embodiments, the air conditioner 100 further includes an outdoor fan and an indoor fan. The outdoor fan drives the outdoor air to flow through the surface of the outdoor heat exchanger 612 by rotating, and exchanges heat with the outdoor heat exchanger 612 to achieve the exchange of heat on the outdoor side. The indoor fan drives the indoor air to flow through the surface of the indoor heat exchanger 613 by rotating, and exchanges heat with the indoor heat exchanger 613 to adjust the temperature and humidity of the indoor air, thereby providing a comfortable indoor environment 110 for the user 120.

[0128] Specifically, the outdoor fan and the indoor fan each include a deflector and an air valve. The deflector is used to guide the flow direction of the air. When the outdoor fan and the indoor fan are running, the deflector can adjust the angle according to the actual demand, guide the air flow driven by the outdoor fan and the indoor fan to a specific direction, and ensure that the air can uniformly and efficiently flow through the surface of the heat exchanger. The air valve is used to control the flow of the air. When the air conditioner 100 needs to increase the heat exchange amount, the opening of the air valve is increased to allow more air to pass through the heat exchanger and enhance the heat exchange effect. Conversely, when the load of the air conditioner 100 is reduced or in a specific operating mode, the opening of the air valve is reduced to reduce the air flow and reduce energy consumption.

[0129] In some embodiments, the air conditioner can adjust the temperature and humidity of the indoor environment by controlling the opening of the deflector and the air valve.

[0130] Specifically, the controller can control the indoor fan according to the humidity control and humidity preservation theory (as shown in Table 4, for example) that "as the humidity of the indoor environment increases, the peak of the dehumidification amount of the air conditioner has a tendency to move to the high-speed side of the indoor unit. At different wind speeds, the critical point of dry and wet working conditions is different. The higher the wind speed, the higher the inlet relative humidity to enter the wet working condition. The smaller the wind speed, the lower the inlet relative humidity to enter the wet working condition." Figure 7 According to the humidity control and humidity preservation theory, the relative humidity of the indoor environment can be better controlled and maintained within the range of human comfortable humidity.

[0131] Table 4 Absolute dehumidification amount and indoor unit speed relationship in 4 hours

[0132] Absolute dehumidification capacity in 4 hours 700rpm 870rpm 1000rpm 1250rpm Indoor 27℃ / 15.8℃(30%RH) 3.90kg 3.24kg 3.01kg 2.94kg Indoor 27℃ / 19℃(47%RH) 3.68kg 4.51kg 4.79kg 4.11kg Indoor 27℃ / 21.2℃(60%RH) 4.21kg 5.45kg 4.66kg 4.70kg

[0133] In some embodiments, as shown in Figure 8 Based on the above humidity control and humidity preservation theory, when the operating mode of the air conditioner is the cooling mode, the control mode of the indoor fan of the air conditioner can include the following steps.

[0134] Step 802, the air conditioner starts running.

[0135] Step 804, the acquired indoor environment temperature Tin, outdoor environment temperature Tout, indoor environment relative humidity Rh and indoor instantaneous sampling relative humidity Rhi.

[0136] Step 806, according to the indoor environment temperature Tin, outdoor environment temperature Tout and indoor environment relative humidity Rh to determine the air conditioner running cooling mode.

[0137] Step 808, the air conditioner enters the cooling mode, and controls the indoor fan speed (step 810 is executed) or controls the compressor frequency (step 830 is executed).

[0138] Step 810, determine whether the set temperature difference E is greater than the first set temperature (for example, 2℃); if yes, execute step 812; if no, execute step 816.

[0139] Step 812, control the indoor fan to run at the first wind speed. It should be noted that in this mode, the indoor fan is first run at the second wind speed, and if E> 3℃ is detected and lasts for 5 minutes, then the ultra-high wind needs to be run. The first wind speed can be ultra-high wind 1250rpm.

[0140] Step 814, determine whether the set temperature difference E is less than or equal to the first set temperature, if yes, execute step 816; if no, execute step 812.

[0141] Step 816, control the indoor fan to run at the second wind speed. The second wind speed is less than the first wind speed. The second wind speed can be medium wind 1000rpm.

[0142] Step 818, determine whether the continuous four sampling periods -2≤ΔR<2 are met. Wherein, the indoor instantaneous sampling relative humidity is collected once every preset sampling period (such as 5 minutes), and ΔR is the difference between the indoor instantaneous sampling relative humidity Rhi of the current sampling period and the indoor instantaneous sampling relative humidity Rh(i-1) of the last sampling period, that is, ΔR=Rhi-Rh(i-1). If yes, execute step 820; if no, execute step 816.

[0143] Step 820, determine whether -6≤ΔRh<6 is met. Wherein, ΔRh is the difference between the indoor instantaneous sampling relative humidity Rhi of the current sampling period and the set humidity Rhset. If yes, execute step 818; if no, execute step 822.

[0144] Step 822, determine whether ΔRh> 6 is met. If yes, execute step 824; if no, execute step 826.

[0145] Step 824, control the indoor fan to lower one gear to the wind speed.

[0146] Step 826, judge whether ΔRh < 6 is satisfied. If yes, execute step 828, if no, execute step 820.

[0147] Step 828, control the indoor fan to adjust one gear to the high wind speed.

[0148] Step 830, enter the refrigeration mode for the first time.

[0149] Step 832, judge whether the set temperature difference E > 3℃ is satisfied. Wherein, the set temperature difference E is the absolute value of the difference between the indoor environment temperature and the target temperature. If yes, execute step 834; if no, execute step 836.

[0150] Step 834, call the existing powerful refrigeration mode to run.

[0151] Step 836, run in the normal mode.

[0152] Through the above steps 802-836, the air conditioner can ensure the user's use comfort while reducing the energy consumption of the air conditioner.

[0153] The following is to explain the stable comfort stage of the temperature sensation of each user introduced into the indoor environment.

[0154] In the embodiment of the present application, after the air conditioner enters the stable comfort stage, the face area temperature, the human thermal sensation TSV, the indoor environment temperature, the relative humidity, the wind speed, the metabolic rate, and the clothing thermal resistance are collected by the infrared sensor to establish a model to train a large database, and finally a temperature sensation recognition model is established to recognize and predict the individual temperature sensation of the user. The controller 640 determines the corresponding control strategy according to the output temperature sensation result, so as to meet the individual difference and personalized comfort adjustment needs of at least one user in the indoor environment.

[0155] As shown in FIG. 9, Figure 9 the controller 640 is configured to execute the following steps 910-930.

[0156] Step 910, acquire the first face area temperature corresponding to the target user collected by the infrared sensor, and acquire the first indoor environment temperature collected by the temperature sensor.

[0157] The target user is any user in the indoor environment.

[0158] Optionally, the infrared sensor and the temperature sensor on the air conditioner are connected with the controller. The indoor environment temperature collected by the infrared sensor can be stored in an indoor environment temperature database, and the face region temperature collected by the temperature sensor can be stored in a face region temperature database. The indoor environment temperature database can include the indoor environment temperatures collected by the temperature sensor in multiple temperature detection periods, and the face region temperature database can include the face region temperatures of each user in the indoor environment collected by the infrared sensor in multiple temperature detection periods. The controller can obtain the first face region temperature corresponding to the target user and the first indoor environment temperature from the indoor environment temperature database and the face region temperature database. The temperature collection period corresponding to the first face region temperature is the same as the temperature collection period corresponding to the first indoor environment temperature.

[0159] In step 920, the first face region temperature and the first indoor environment temperature are input into the temperature-sensing recognition model. The temperature-sensing recognition model determines the temperature-sensing result corresponding to the target user according to the first face region temperature and the first indoor environment temperature.

[0160] The first layer decision condition of the temperature-sensing recognition model is whether the indoor environment temperature is less than or equal to the first environment temperature threshold. The second layer decision condition of the temperature-sensing recognition model includes whether the cheek temperature is less than or equal to the first cheek temperature threshold and whether the indoor environment temperature is less than or equal to the second environment temperature threshold. The second environment temperature threshold is greater than the first environment temperature threshold.

[0161] In some embodiments, the controller stores a trained temperature-sensing recognition model. The training process of the temperature-sensing recognition model can be performed on the air conditioner or other electronic devices or terminal devices. After the training is completed by other electronic devices or terminal devices, the trained temperature-sensing recognition model is stored on the current air conditioner through migration learning or direct sending.

[0162] Specifically, the training of the temperature-sensing recognition model can include the following steps 1) to 4).

[0163] 1) Sample data collection. Compared with the PMV model with physical meaning, the accuracy of the artificial intelligence technology based on big data in predicting human thermal sensation is higher than that of the conventional physical model, and the accuracy depends largely on the amount of sample data involved in the training, so in practical application, as the amount of sample data increases, the accuracy of the established thermal sensation recognition model will also be improved, therefore, in order to enable the air conditioner to accurately identify the user's thermal sensation, the sample data collection includes the collection of environmental state parameters in various environments and the collection of body surface data of different users, wherein the various environments include environments in different regions, different seasons, different weather conditions, etc.; the environmental state parameters include indoor environmental temperature, environmental relative humidity, wind speed, clothing thermal resistance, etc.; different users include sampling populations with different physical characteristics such as different age groups, different genders, and different races; the body surface data of people includes skin temperature (such as facial region temperature) of multiple different body parts, human thermal sensation, human metabolic rate, etc. Thus, a large database is established based on the above collected sample data to learn the user's thermal sensation change rule by using artificial intelligence technology, so as to improve the accuracy of identifying individual thermal comfort needs of users when applied on the air conditioner.

[0164] 2) Model training. The thermal sensation recognition model is constructed using skin temperature data of different facial regions, and the thermal sensation recognition model is selected and optimized by model screening and debugging using the collected environmental state parameters in various environments and parameters such as human thermal sensation and human metabolic rate. The thermal sensation recognition model established based on the facial region temperature can be fully automatically controlled in ideal conditions, and can learn the user's thermal sensation change rule without human intervention to adjust the parameters, thereby improving the modeling efficiency.

[0165] 3) Generating model. There are parameters, i.e. hyperparameters, in the construction process of the thermal sensation recognition model that cannot be directly optimized by algorithm, and the optimal thermal sensation recognition model output is trained by manual adjustment and selection of the hyperparameters.

[0166] 4) Prediction. The optimal thermal sensation recognition model is tested to predict the accuracy of the thermal sensation recognition model to determine the generalization degree of the optimal thermal sensation recognition model, and in the case where the generalization degree of the optimal thermal sensation recognition model reaches a preset degree, the optimal thermal sensation recognition model can be used as the trained thermal sensation recognition model.

[0167] In some embodiments, the thermal sensation result includes a thermal sensation category, and the thermal sensation category includes a first thermal sensation, a second thermal sensation, or a third thermal sensation, the first thermal sensation indicating that the user's temperature feeling is cold, the second thermal sensation indicating that the user's temperature feeling is hot, and the third thermal sensation indicating that the user's temperature feeling is neutral.

[0168] Optionally, the thermal sensation result further comprises a thermal sensation value. One thermal sensation category can correspond to multiple thermal sensation values, different thermal sensation categories correspond to different thermal sensation values, and the number of thermal sensation values corresponding to each thermal sensation category is not limited herein. For example, the thermal sensation values corresponding to the first thermal sensation can include -1 and -2; the thermal sensation values corresponding to the second thermal sensation can include 1, 2 and 3; and the thermal sensation values corresponding to the third thermal sensation can include 0.

[0169] It should be noted that the thermal sensation value can be used to represent the degree of the corresponding thermal sensation category. For example, in the case where the first thermal sensation indicates that the user feels cold, and the thermal sensation values corresponding to the first thermal sensation include -1 and -2, the thermal sensation value -1 can represent that the target user feels cold, and the thermal sensation value -2 can represent that the target user feels very cold, i.e., the user with the thermal sensation value -2 feels colder than the user with the thermal sensation value -1.

[0170] At step 930, the target operating parameter corresponding to the air conditioner is determined according to the working mode of the air conditioner and the thermal sensation result corresponding to each of the at least one user.

[0171] Since the ambient temperature of the indoor environment is affected by the air flow of the hot or cold air flow output by the air conditioner, and the air flow output by the air conditioner is affected by the circulation flow and state change of the refrigerant, and the circulation flow and state change of the refrigerant are affected by the operating frequency of the compressor. Specifically, the higher the operating frequency of the compressor, the more refrigerant is compressed in a unit of time, the stronger the refrigeration or heating capacity of the air conditioner, the larger the hot or cold air flow output by the air conditioner, and the more significant the temperature change caused by the air conditioner adjusting the temperature, and thus the more significant the influence on the ambient temperature of the indoor environment. Therefore, the controller can control the ambient temperature of the indoor environment by adjusting the operating frequency of the compressor of the air conditioner, so that the ambient temperature tends to the desired temperature (the target temperature Ts_comfort of the stable comfort stage) of the user, thereby enabling the user to feel comfortable.

[0172] Optionally, the target temperature Ts_comfort of the stable comfort stage can be determined according to the working mode of the air conditioner and the thermal sensation result corresponding to each of the at least one user.

[0173] In some embodiments, if the air conditioner determines that the number of users with a cold temperature sensing result in the indoor environment is large, the current set temperature is increased, that is, when the controller of the air conditioner identifies that the number of users with a cold temperature sensing result is greater than the first quantity threshold value through the temperature sensing identification model, a temperature increase signal is sent to increase the temperature based on the current set temperature, for example, if the current set temperature is 20°C, the target temperature after the increase can be 21°C; or, after determining that the number of users with a neutral temperature sensing result is greater than the first quantity threshold value, a temperature maintenance signal is sent to keep the current set temperature unchanged; or, after determining that the number of users with a hot temperature sensing result is greater than the first quantity threshold value, a temperature decrease signal is sent to decrease the temperature based on the current set temperature, for example, if the current set temperature is 20°C, the target temperature after the decrease is 19°C. The first quantity threshold value is determined by the number of users in the current indoor environment. In this way, the current set temperature is adjusted in the above manner, and the air conditioner operates according to the adjusted target temperature, so as to achieve the purpose of individual thermal comfort control for users and meet the individual comfort adjustment needs of target users.

[0174] The target operating parameters corresponding to the air conditioner refer to various operating parameters that the air conditioner needs to achieve in order to adjust the environmental temperature of the indoor environment to be close to the user's expected temperature (the first target temperature or the second target temperature).

[0175] Optionally, the target operating parameters corresponding to the air conditioner can include, but are not limited to, one or more of the target operating frequency of the compressor, the target rotating speed of the fan, the target opening degree of the electronic expansion valve, the target angle of the air deflector, and the target opening degree of the air valve.

[0176] The operating frequency of the compressor can control the amount of refrigerant compressed per unit time, thereby affecting the refrigeration or heating capacity of the air conditioner and the flow rate of the output air flow. The rotating speed of the fan can affect the flow rate and air volume of the output air flow of the air conditioner. The opening degree of the electronic expansion valve can control the flow rate and pressure of the refrigerant, thereby affecting the refrigeration or heating effect of the air conditioner. The angle of the air deflector and the opening degree of the air valve can adjust the wind direction and wind speed of the output air flow of the air conditioner.

[0177] For example, in the case where the air conditioner is in a heating mode, if the controller determines through the temperature sensing identification model that the number of users with a cold temperature sensing result in the indoor environment is greater than the first quantity threshold value, the rotating speed of the indoor fan of the air conditioner is increased; if the controller determines through the temperature sensing identification model that the number of users with a hot temperature sensing result in the indoor environment is greater than the first quantity threshold value, the rotating speed of the indoor fan of the air conditioner is decreased.

[0178] For example, when the air conditioner is in the cooling mode, if the controller determines, through the thermal sensation recognition model, that the number of users with a thermal sensation result of being too cold in the indoor environment is greater than the first quantity threshold, the controller reduces the rotation speed of the indoor fan of the air conditioner; if the controller determines, through the thermal sensation recognition model, that the number of users with a thermal sensation result of being too hot in the indoor environment is greater than the first quantity threshold, the controller increases the rotation speed of the indoor fan of the air conditioner.

[0179] In some embodiments, after determining the target operating parameter corresponding to the air conditioner, the controller controls the air conditioner to operate according to the target operating parameter, so that the temperature adjusted by the air conditioner approaches the first target temperature or the second target temperature, thereby bringing a comfortable environmental temperature for at least one user in the indoor environment.

[0180] In the embodiments of the present application, the controller obtains the face region temperature of the user and the indoor environment temperature, and makes a preliminary judgment through the first layer decision condition of the thermal sensation recognition model (whether the indoor environment temperature is less than or equal to the first environment temperature threshold), and then further adjusts the recognition result of the first layer by combining the partial face region temperature (cheek temperature) of the user and the further indoor environment temperature (second environment temperature threshold judgment), so as to more accurately quantify the thermal sensation of the individual user, form a thermal sensation decision branch, and thus enable the controller of the air conditioner to accurately identify and predict the thermal sensation result of each user in the indoor environment. In addition, the controller adjusts the operating parameter of the air conditioner according to the accurate thermal sensation result corresponding to at least one user, so that the indoor environment temperature can more accurately meet the temperature demand of at least one user in the indoor environment, so that the air conditioner can not only meet the comfort demand of the general public, but also realize the individual comfort demand of each user.

[0181] In some embodiments, as shown in Figure 10 The step of determining, by the thermal sensation recognition model, the thermal sensation result corresponding to the target user according to the first face region temperature and the first indoor environment temperature can include the following steps 1002-1014.

[0182] Step 1002: Determine, by the thermal sensation recognition model, whether the first indoor environment temperature is less than or equal to the first environment temperature threshold. If yes, the controller 640 performs step 1004; if no, the controller 640 performs step 1010.

[0183] Step 1004: If the first indoor environment temperature is less than or equal to the first environment temperature threshold, determine, by the thermal sensation recognition model, whether the first cheek temperature in the first face region temperature is less than or equal to the first cheek temperature threshold. If yes, the controller 640 performs step 1006; if no, the controller 640 performs step 1008.

[0184] Step 1006, in the case that the first cheek temperature is less than or equal to the first cheek temperature threshold, determining, by the thermal sensation recognition model, that the thermal sensation result corresponding to the target user is the first thermal sensation or the third thermal sensation.

[0185] Step 1008, in the case that the first cheek temperature is greater than the first cheek temperature threshold, determining, by the thermal sensation recognition model, that the thermal sensation result corresponding to the target user is the first thermal sensation or the second thermal sensation or the third thermal sensation.

[0186] Specifically, if the first cheek temperature is greater than the first cheek temperature threshold, determining, by the thermal sensation recognition model, whether the first indoor environment temperature is less than or equal to the third environment temperature threshold; in the case that the first indoor environment temperature is less than or equal to the third environment temperature threshold, determining, by the thermal sensation recognition model, that the thermal sensation result corresponding to the target user is the first thermal sensation or the third thermal sensation; in the case that the first indoor environment temperature is greater than the third environment temperature threshold, determining, by the thermal sensation recognition model, that the thermal sensation result corresponding to the target user is the second thermal sensation or the third thermal sensation.

[0187] Step 1010, if the first indoor environment temperature is greater than the first environment temperature threshold, determining, by the thermal sensation recognition model, whether the first indoor environment temperature is less than or equal to the second environment temperature threshold. If yes, the controller 640 executes step 1012; if no, the controller 640 executes step 1014.

[0188] Step 1012, in the case that the first indoor environment temperature is less than or equal to the second environment temperature threshold, determining, by the thermal sensation recognition model, that the thermal sensation result corresponding to the target user is the second thermal sensation or the third thermal sensation.

[0189] Step 1014, in the case that the first indoor environment temperature is greater than the second environment temperature threshold, determining, by the thermal sensation recognition model, that the thermal sensation result corresponding to the target user is the third thermal sensation.

[0190] In the embodiments of the present application, through the layered judgment of the first indoor environment temperature and the first cheek temperature by the thermal sensation recognition model, in the case that the first indoor environment temperature is relatively low (less than or equal to the first environment temperature threshold) and the first cheek temperature is less than or equal to the first cheek temperature threshold, the thermal sensation result of the target user is determined as the cold-biased thermal sensation or the neutral thermal sensation; in the case that the first indoor environment temperature is between the first environment temperature threshold and the second environment temperature threshold, the thermal sensation result of the target user is determined as the hot-biased thermal sensation or the neutral thermal sensation; in the case that the first indoor environment temperature is relatively high (exceeding the second environment temperature threshold), the thermal sensation result of the target user is directly determined as the neutral. The thermal sensation recognition model generates specific thermal sensation prediction branches for different environment conditions and user characteristics, which can avoid the limitation of a single temperature threshold, and the thermal sensation result determined by the thermal sensation recognition model is more consistent with the actual environment change and the temperature demand of the target user, thereby improving the recognition accuracy of the thermal sensation of the user.

[0191] In some embodiments, as shown in FIG. 6, the temperature sensing recognition model includes five layers of decision conditions, and a total of 23 decision branches; each decision branch corresponds to a leaf node which is a temperature sensing result. Figures 11A-11C

[0192] In some specific embodiments, the third layer of decision conditions of the temperature sensing recognition model includes whether the nose temperature is less than or equal to a first nose temperature threshold, whether the indoor environment temperature is less than or equal to a third environment temperature threshold, and whether the indoor environment temperature is less than or equal to a fourth environment temperature threshold, the third environment temperature threshold is less than the first environment temperature threshold, and the fourth environment temperature threshold is greater than the first environment temperature threshold and less than the second environment temperature threshold.

[0193] In some specific embodiments, the fourth layer of decision conditions of the temperature sensing recognition model includes whether the indoor environment temperature is less than or equal to a fifth environment temperature threshold, whether the indoor environment temperature is less than or equal to a sixth environment temperature threshold, whether the forehead temperature is less than or equal to a first forehead temperature threshold, whether the cheek temperature is less than or equal to a second cheek temperature threshold, whether the nose temperature is less than or equal to a second nose temperature threshold, and whether the forehead temperature is less than or equal to a second forehead temperature threshold; wherein the first forehead temperature threshold is less than the second forehead temperature threshold; the second cheek temperature threshold is greater than the first cheek temperature threshold; the second nose temperature threshold is greater than the first nose temperature threshold; the fifth environment temperature threshold is less than the third environment temperature threshold; and the sixth environment temperature threshold is less than the fifth environment temperature threshold.

[0194] In some specific embodiments, the fifth layer of decision conditions of the temperature sensing recognition model includes whether the nose temperature is less than or equal to a third nose temperature threshold, whether the nose temperature is less than or equal to a fourth nose temperature threshold, whether the forehead temperature is less than or equal to a third forehead temperature threshold, whether the nose temperature is less than or equal to a fifth nose temperature threshold, whether the cheek temperature is less than or equal to a third cheek temperature threshold, whether the eye temperature is less than or equal to a first eye temperature threshold, whether the nose temperature is less than or equal to a sixth nose temperature threshold, whether the forehead temperature is less than or equal to a fourth forehead temperature threshold, whether the indoor environment temperature is less than or equal to a seventh environment temperature threshold, and whether the nose temperature is less than or equal to a seventh nose temperature threshold; wherein the third nose temperature threshold is less than the fifth nose temperature threshold; the fifth nose temperature threshold is less than the fourth nose temperature threshold; the fourth nose temperature threshold is less than the first nose temperature threshold; the sixth nose temperature threshold is greater than the second nose temperature threshold; the seventh nose temperature threshold is greater than the sixth nose temperature threshold; the third cheek temperature threshold is less than the second cheek temperature threshold and greater than the first cheek temperature threshold; the third forehead temperature threshold is less than the first forehead temperature threshold; the fourth forehead temperature threshold is greater than the first forehead temperature threshold and less than the second forehead temperature threshold; and the seventh environment temperature threshold is greater than the first environment temperature threshold and less than the fourth environment temperature threshold. ​

[0195] For example, in Figures 11A-11C In the temperature sensing recognition model shown, the third nose temperature threshold (such as 25.85°C) is smaller than the fifth nose temperature threshold (such as 27.50°C), smaller than the fourth nose temperature threshold (such as 29.35°C), smaller than the first nose temperature threshold (such as 31.25°C), smaller than the second nose temperature threshold (such as 35.95°C), smaller than the sixth nose temperature threshold (such as 36.05°C), and smaller than the seventh nose temperature threshold (such as 36.15°C).

[0196] For example, in Figures 11A-11C In the temperature sensing recognition model shown, the sixth ambient temperature threshold (such as 16.30℃) is less than the fifth ambient temperature threshold (such as 19.70℃), less than the third ambient temperature threshold (such as 21.05℃), less than the first ambient temperature threshold (such as 28.75℃), less than the seventh ambient temperature threshold (such as 29.65℃), less than the fourth ambient temperature threshold (such as 29.75℃), and less than the second ambient temperature threshold (such as 30.95℃).

[0197] For example, in Figures 11A-11C In the temperature recognition model shown, the first cheek temperature threshold (eg, 31.75° C.) is smaller than the third cheek temperature threshold (eg, 34.55° C.), which is smaller than the second cheek temperature threshold (eg, 35.95° C.).

[0198] For example, in Figures 11A-11C In the temperature recognition model shown, the first eye temperature threshold can be set to 33.00°C.

[0199] For example, in Figures 11A-11C In the temperature recognition model shown, the third forehead temperature threshold (such as 32.50°C) is lower than the first forehead temperature threshold (such as 34.25°C), lower than the fourth forehead temperature threshold (such as 35.45°C), and lower than the second forehead temperature threshold (such as 37.45°C).

[0200] like Figures 11A-11C As shown in the figure, the 23 decision branches and corresponding temperature sensing results included in the temperature recognition model are as follows, where the nose temperature is T 鼻子 , cheek temperature is T 脸颊 , forehead temperature is T 额头 , the eye temperature is T 眼睛 , the indoor ambient temperature is T 室内环境 .

[0201] Specifically, the first decision branch: Figure 11A As shown, in the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值 , further the first cheek temperature satisfies T 脸颊 ≤T 第一脸颊温度阈值, further the first nose temperature satisfies T 鼻子 ≤T 第一鼻子温度阈值 , further the first indoor ambient temperature satisfies T 室内环境 ≤T 第五环境温度阈值 , further the first nose temperature satisfies T 鼻子 ≤T 第三鼻子温度阈值 In the case of , the temperature sensation result corresponding to the first decision branch is that the first temperature sensation is cold.

[0202] Specifically, the second decision branch: Figure 11A As shown, in the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值 , further the first cheek temperature satisfies T 脸颊 ≤T 第一脸颊温度阈值 , further the first nose temperature satisfies T 鼻子 ≤T 第一鼻子温度阈值 , further the first indoor ambient temperature satisfies T 室内环境 ≤T 第五环境温度阈值 , further the first nose temperature satisfies T 鼻子 >T 第三鼻子温度阈值 In the case of , the temperature sensation result corresponding to the second decision branch is that the first temperature sensation is cold.

[0203] Specifically, the third decision branch: Figure 11A As shown, in the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值 , further the first cheek temperature satisfies T 脸颊 ≤T 第一脸颊温度阈值 , further the first nose temperature satisfies T 鼻子 ≤T 第一鼻子温度阈值 , further the first indoor ambient temperature satisfies T 室内环境 >T 第五环境温度阈值 , further the first nose temperature satisfies T 鼻子 ≤T 第四鼻子温度阈值 In the case of , the temperature sensing result corresponding to the third decision branch is the third temperature sensing neutral.

[0204] Specifically, the fourth decision branch: Figure 11A As shown, in the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值 , further the first cheek temperature satisfies T 脸颊 ≤T 第一脸颊温度阈值 , further the first nose temperature satisfies T 鼻子 ≤T 第一鼻子温度阈值 , further the first indoor ambient temperature satisfies T 室内环境 >T 第五环境温度阈值 , further the first nose temperature satisfies T 鼻子 >T 第四鼻子温度阈值In the case of , the temperature sensation result corresponding to the fourth decision branch is that the first temperature sensation is cold.

[0205] Specifically, the fifth decision branch: Figure 11A As shown, in the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值 , further the first cheek temperature satisfies T 脸颊 ≤T 第一脸颊温度阈值 , further the first nose temperature satisfies T 鼻子 >T 第一鼻子温度阈值 , further the first indoor ambient temperature satisfies T 室内环境 ≤T 第六环境温度阈值 In this case, the temperature sensation result corresponding to the fifth decision branch is that the first temperature sensation is cold.

[0206] Specifically, the sixth decision branch: Figure 11A As shown, in the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值 , further the first cheek temperature satisfies T 脸颊 ≤T 第一脸颊温度阈值 , further the first nose temperature satisfies T 鼻子 >T 第一鼻子温度阈值 , further the first indoor ambient temperature satisfies T 室内环境 >T 第六环境温度阈值 , further the first forehead temperature satisfies T 额头 ≤T 第三额头温度阈值 In the case of , the temperature sensing result corresponding to the sixth decision branch is the third temperature sensing neutral.

[0207] Specifically, the seventh decision branch: Figure 11A As shown, in the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值 , further the first cheek temperature satisfies T 脸颊 ≤T 第一脸颊温度阈值 , further the first nose temperature satisfies T 鼻子 >T 第一鼻子温度阈值 , further the first indoor ambient temperature satisfies T 室内环境 >T 第六环境温度阈值 , further the first forehead temperature satisfies T 额头 >T 第三额头温度阈值 In the case of , the temperature sensation result corresponding to the seventh decision branch is that the first temperature sensation is cold.

[0208] Specifically, the eighth decision branch: when the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值 , further the first cheek temperature satisfies T 脸颊 >T 第一脸颊温度阈值 , enter ① process, refer to Figure 11B As shown, the first indoor ambient temperature satisfies T室内环境 ≤T 第三环境温度阈值 , further the first forehead temperature satisfies T 额头 ≤T 第一额头温度阈值 , further the first nose temperature satisfies T 鼻子 ≤T 第五鼻子温度阈值 In the case of , the temperature sensation result corresponding to the eighth decision branch is that the first temperature sensation is cold.

[0209] Specifically, the ninth decision branch: when the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值 , further the first cheek temperature satisfies T 脸颊 >T 第一脸颊温度阈值 , enter ① process, refer to Figure 11B As shown, the first indoor ambient temperature satisfies T 室内环境 ≤T 第三环境温度阈值 , further the first forehead temperature satisfies T 额头 ≤T 第一额头温度阈值 , further the first nose temperature satisfies T 鼻子 >T 第五鼻子温度阈值 In the case of , the temperature sensing result corresponding to the ninth decision branch is the third temperature sensing neutral.

[0210] Specifically, the tenth decision branch: when the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值 , further the first cheek temperature satisfies T 脸颊 >T 第一脸颊温度阈值 , enter ① process, refer to Figure 11B As shown, the first indoor ambient temperature satisfies T 室内环境 ≤T 第三环境温度阈值 , further the first forehead temperature satisfies T 额头 >T 第一额头温度阈值 , further the first cheek temperature satisfies T 脸颊 ≤T 第三脸颊温度阈值 In the case of , the temperature sensing result corresponding to the tenth decision branch is the third temperature sensing neutral.

[0211] Specifically, the eleventh decision branch: when the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值 , further the first cheek temperature satisfies T 脸颊 >T 第一脸颊温度阈值 , enter ① process, refer to Figure 11B As shown, the first indoor ambient temperature satisfies T 室内环境 ≤T 第三环境温度阈值 , further the first forehead temperature satisfies T 额头 >T 第一额头温度阈值 , further the first cheek temperature satisfies T 脸颊 >T 第三脸颊温度阈值In the case of , the temperature sensation result corresponding to the eleventh decision branch is that the first temperature sensation is cold.

[0212] Specifically, the twelfth decision branch: when the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值 , further the first cheek temperature satisfies T 脸颊 >T 第一脸颊温度阈值 , enter ① process, refer to Figure 11B As shown, the first indoor ambient temperature satisfies T 室内环境 >T 第三环境温度阈值 , further the first cheek temperature satisfies T 脸颊 ≤T 第二脸颊温度阈值 , further the first eye temperature satisfies T 眼睛 ≤T 第一眼睛温度阈值 In the case of , the temperature sensing result corresponding to the twelfth decision branch is the second temperature sensing being hot.

[0213] Specifically, the thirteenth decision branch: when the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值 , further the first cheek temperature satisfies T 脸颊 >T 第一脸颊温度阈值 , enter ① process, refer to Figure 11B As shown, the first indoor ambient temperature satisfies T 室内环境 >T 第三环境温度阈值 , further the first cheek temperature satisfies T 脸颊 ≤T 第二脸颊温度阈值 , further the first eye temperature satisfies T 眼睛 >T 第一眼睛温度阈值 In the case of , the temperature sensing result corresponding to the thirteenth decision branch is the third temperature sensing neutral.

[0214] Specifically, the fourteenth decision branch: when the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值 , further the first cheek temperature satisfies T 脸颊 >T 第一脸颊温度阈值 , enter ① process, refer to Figure 11B As shown, the first indoor ambient temperature satisfies T 室内环境 >T 第三环境温度阈值 , further the first cheek temperature satisfies T 脸颊 >T 第二脸颊温度阈值 , further the first nose temperature satisfies T 鼻子 ≤T 第六鼻子温度阈值 In the case of , the temperature sensing result corresponding to the fourteenth decision branch is the third temperature sensing neutral.

[0215] Specifically, the fifteenth decision branch: when the first indoor ambient temperature satisfies T 室内环境 ≤T 第一环境温度阈值, further the first cheek temperature satisfies T 脸颊 > T 第一脸颊温度阈值 , enters the ① flow, and specifically refers to the case shown in Figure 11B , further the first indoor environment temperature satisfies T 室内环境 > T 第三环境温度阈值 , further the first cheek temperature satisfies T 脸颊 > T 第二脸颊温度阈值 , further the first nose temperature satisfies T 鼻子 > T 第六鼻子温度阈值 , the fifteenth decision branch corresponds to the third temperature sensing neutral.

[0216] Specifically, the sixteenth decision branch: in the case that the first indoor environment temperature satisfies T 室内环境 > T 第一环境温度阈值 , enters the ② flow, and specifically refers to the case shown in Figure 11C , further the first indoor environment temperature satisfies T 室内环境 ≤ T 第二环境温度阈值 , further the first indoor environment temperature satisfies T 室内环境 ≤ T 第四环境温度阈值 , further the first nose temperature satisfies T 鼻子 ≤ T 第二鼻子温度阈值 , further the first forehead temperature satisfies T 额头 ≤ T 第四额头温度阈值 , the sixteenth decision branch corresponds to the second temperature sensing hot.

[0217] Specifically, the seventeenth decision branch: in the case that the first indoor environment temperature satisfies T 室内环境 > T 第一环境温度阈值 , enters the ② flow, and specifically refers to the case shown in Figure 11C , further the first indoor environment temperature satisfies T 室内环境 ≤ T 第二环境温度阈值 , further the first indoor environment temperature satisfies T 室内环境 ≤ T 第四环境温度阈值 , further the first nose temperature satisfies T 鼻子 ≤ T 第二鼻子温度阈值 , further the first forehead temperature satisfies T 额头 > T 第四额头温度阈值 , the seventeenth decision branch corresponds to the third temperature sensing neutral.

[0218] Specifically, the eighteenth decision branch: in the case that the first indoor environment temperature satisfies T 室内环境 > T 第一环境温度阈值 , enters the ② flow, and specifically refers to the case shown in Figure 11C , further the first indoor environment temperature satisfies T 室内环境 ≤ T 第二环境温度阈值 , further the first indoor environment temperature satisfies T 室内环境 ≤ T第四环境温度阈值 , further the first nose temperature satisfies T 鼻子 ≤ T 第二鼻子温度阈值 , further the first indoor environment temperature satisfies T 室内环境 ≤ T 第七环境温度阈值 , the corresponding temperature sensing result of the eighteenth decision branch is the second temperature sensing of being slightly hot.

[0219] Specifically, the nineteenth decision branch: in the case that the first indoor environment temperature satisfies T 室内环境 ≤ T 第一环境温度阈值 , enter the ② flow, and specifically refer to the case that the first indoor environment temperature satisfies T Figure 11C , further the first indoor environment temperature satisfies T 室内环境 ≤ T 第二环境温度阈值 , further the first indoor environment temperature satisfies T 室内环境 ≤ T 第四环境温度阈值 , further the first nose temperature satisfies T 鼻子 ≤ T 第二鼻子温度阈值 , further the first indoor environment temperature satisfies T 室内环境 ≤ T 第七环境温度阈值 , the corresponding temperature sensing result of the nineteenth decision branch is the third temperature sensing of being neutral.

[0220] Specifically, the twentieth decision branch: in the case that the first indoor environment temperature satisfies T 室内环境 ≤ T 第一环境温度阈值 , enter the ② flow, and specifically refer to the case that the first indoor environment temperature satisfies T Figure 11C , further the first indoor environment temperature satisfies T 室内环境 ≤ T 第二环境温度阈值 , further the first indoor environment temperature satisfies T 室内环境 ≤ T 第四环境温度阈值 , further the first forehead temperature satisfies T 额头 ≤ T 第二额头温度阈值 , further the first nose temperature satisfies T 鼻子 ≤ T 第七鼻子阈值 , the corresponding temperature sensing result of the twentieth decision branch is the second temperature sensing of being slightly hot.

[0221] Specifically, the twenty-first decision branch: in the case that the first indoor environment temperature satisfies T 室内环境 ≤ T 第一环境温度阈值 , enter the ② flow, and specifically refer to the case that the first indoor environment temperature satisfies T Figure 11C , further the first indoor environment temperature satisfies T 室内环境 ≤ T 第二环境温度阈值 , further the first indoor environment temperature satisfies T 室内环境 ≤ T 第四环境温度阈值 , further the first forehead temperature satisfies T 额头 ≤ T 第二额头温度阈值 , further the first nose temperature satisfies T 鼻子 ≤ T 第七鼻子阈值In the case that the first forehead temperature satisfies T

[0222] Specifically, the twenty-second decision branch is: in the case that the first indoor environment temperature satisfies T 室内环境 > T 第一环境温度阈值 , entering the ② flow, and specifically referring to Figure 11C , further in the case that the first indoor environment temperature satisfies T 室内环境 > T 第二环境温度阈值 , further in the case that the first indoor environment temperature satisfies T 室内环境 > T 第四环境温度阈值 , further in the case that the first forehead temperature satisfies T 额头 > T 第二额头温度阈值 , the twenty-second decision branch corresponds to a third thermal sensation neutral.

[0223] Specifically, the twenty-third decision branch is: in the case that the first indoor environment temperature satisfies T 室内环境 > T 第一环境温度阈值 , entering the ② flow, and specifically referring to Figure 11C , further in the case that the first indoor environment temperature satisfies T 室内环境 > T 第二环境温度阈值 , the twenty-third decision branch corresponds to the third thermal sensation neutral.

[0224] In the above 23 decision branches and corresponding thermal sensation results, if the thermal sensation result is the first thermal sensation cold, that is, the user's current feeling temperature is low, the current set temperature is increased to increase the user's body temperature and improve comfort. If the thermal sensation result is the second thermal sensation hot, that is, the user's current feeling temperature is high, the current set temperature is reduced to reduce the user's body temperature and improve comfort. If the thermal sensation result is the third thermal sensation neutral, that is, the user's current feeling is neither cold nor hot, at this time, the current set temperature can be maintained, that is, the air conditioner can currently meet the user's individual comfort needs.

[0225] In some embodiments, as shown in Figure 12 , the controller 640 is configured to perform the following steps 1202-1208.

[0226] Step 1202, acquiring the first facial region temperature corresponding to the target user collected by the infrared sensor in the current detection period, and acquiring the first indoor environment temperature collected by the temperature sensor in the current detection period.

[0227] Step 1204, inputting the first facial region temperature and the first indoor environment temperature into the thermal sensation recognition model, and determining the first thermal sensation result of the target user corresponding to the current detection period according to the first facial region temperature and the first indoor environment temperature through the thermal sensation recognition model.

[0228] For the description of determining the first temperature sensing result corresponding to the target user and the current detection period in steps 1202 to 1204 , reference may be made to the description of steps 910 to 920 in the above embodiment, which will not be repeated here.

[0229] Step 1206 : Determine the temperature sensing result corresponding to the target user according to the first temperature sensing results corresponding to the target user and at least two detection periods.

[0230] In some embodiments, the controller of the air conditioner may store the first temperature sensing results corresponding to the target user and each detection cycle until the number of stored detection cycles reaches a preset number; the controller performs statistics on the first temperature sensing results corresponding to at least two stored detection cycles to determine the temperature sensing results corresponding to the target user, which can improve the accuracy of identifying the temperature sensation of the target user.

[0231] Optionally, the controller may adopt statistical methods including but not limited to the mean, mode, median, etc. of multiple first temperature sensing results.

[0232] For example, taking the majority as an example, the air conditioner collects the facial area temperature of the target user and the corresponding indoor environment temperature, and inputs the facial area temperature and the corresponding indoor environment temperature into the temperature sensing recognition model to obtain the corresponding first temperature sensing result; assuming the preset number is 5, the first temperature sensing results output after 5 judgments by the temperature sensing recognition model are: slightly hot, slightly cold, neutral, slightly hot, slightly hot, among which the number of slightly hot is the largest, so the temperature sensing result of the target user is slightly hot.

[0233] Step 1208: Determine target operating parameters corresponding to the air conditioner according to the operating mode of the air conditioner and the temperature sensing result corresponding to at least one user.

[0234] For the description of step 1208 , please refer to the description of step 940 in the above embodiment, which will not be repeated here.

[0235] In an embodiment of the present application, the air conditioner obtains the first temperature sensing results corresponding to the target user in multiple detection cycles and integrates the first temperature sensing results of multiple detection cycles, thereby reducing the random error of a single temperature acquisition and the randomness of the results of a single pass through the temperature sensing recognition model, thereby ensuring the accuracy and stability of the temperature sensing results corresponding to the final target user.

[0236] In some embodiments, as Figure 13 As shown, the step of determining the target operating parameters corresponding to the air conditioner according to the working mode of the air conditioner and the temperature sensing result corresponding to at least one user may include the following steps 1302 to 1308.

[0237] At step 1302, a temperature sensing value range to which each temperature sensing value of at least one user corresponds is determined according to the temperature sensing value.

[0238] The temperature sensing value can be used to represent the degree of the corresponding temperature sensing category.

[0239] At step 1304, a temperature compensation value is determined according to each temperature sensing value range and the working mode of the air conditioner.

[0240] In some embodiments, the controller can count each temperature sensing value range, determine a target temperature sensing value range containing the largest number of users, and determine a target temperature compensation value corresponding to the target temperature sensing value range according to the correspondence between the temperature sensing value range and the temperature compensation value (as shown in Table 5).

[0241] Table 5

[0242] Temperature sensitivity range Temperature compensation value (℃) [-3,-2) +2 [-2,-1) +1 [-1,1] 0 (1,2] -1 (2,3] -2

[0243] Optionally, the controller can further obtain an outdoor environment temperature Tout, a clothing resistance clo of the user, and a human metabolic rate M of the user, determine a first temperature compensation value corresponding to each user in the indoor environment through Table 3, and take the sum of the average of the first temperature compensation values corresponding to each user and the target temperature compensation value as the temperature compensation value of the current air conditioner.

[0244] At step 1306, the current set temperature of the air conditioner is temperature compensated based on the temperature compensation value to obtain a target temperature.

[0245] Optionally, the controller can take the sum of the current set temperature of the air conditioner and the temperature compensation value as the target temperature.

[0246] At step 1308, a target running parameter corresponding to the air conditioner is adjusted according to the target temperature.

[0247] In the embodiments of the present application, the air conditioner maps the temperature sensing values of each user to corresponding value ranges, so that the temperature sensing states of each user are quantitatively classified, which provides a basis for determining the temperature compensation value, and the temperature compensation value is determined according to the current mode of the air conditioner, the current set temperature is corrected in real time based on the temperature compensation value, the target temperature considering the group comfort and the individual temperature sensing is obtained, and the target running parameter is adjusted based on the target temperature, so that the air conditioner can meet the comfort demands of the general public while also achieving the individual comfort demands of each user.

[0248] In some embodiments, the air conditioner further includes an air supply assembly; the air supply assembly is configured to deliver air flow to the indoor environment, and an air supply range covered by the air supply assembly is divided into a plurality of air supply areas; and the target running parameter includes an air supply direction of the air supply assembly.

[0249] Optionally, as Figure 14 As shown in the figure, from the perspective of top view, the air supply range covered by the air supply assembly is a sector with a radius of 5 meters and an angular radian of 120°, and according to the area of the sector, the air supply range can be equally divided into 5 air supply areas.

[0250] In some embodiments, as shown in the figure, the step of determining the target operating parameter of the air conditioner according to the working mode of the air conditioner and the temperature sensing result of each user respectively can include the following steps 1502-1510. Figure 15

[0251] Step 1502, obtaining the position information of each user respectively.

[0252] In some embodiments, the air conditioner can further include a positioning module configured to determine the user position of each user respectively in the indoor environment corresponding to the air conditioner.

[0253] Optionally, the positioning module can include a near distance communication module configured to establish a near distance communication connection with each terminal device in the indoor environment corresponding to the air conditioner, receive the near distance communication signal sent by each terminal device, and determine the distance between each user corresponding to the terminal device and the air conditioner according to the near distance communication signal sent by each terminal device to obtain the position information of each user respectively.

[0254] Near distance communication refers to data transmission between two parties within a short distance (usually a few meters to tens of meters). The connection mode of near distance communication can include but is not limited to Bluetooth, Wi-Fi Direct (Wi-Fi Direct), UWB (Ultra Wide-Band), NFC (Near Field Communication), etc.

[0255] In the indoor environment, each user has a corresponding terminal device, which can be a mobile phone, a computer, a wearable device, etc. Since various terminal devices currently have near distance communication functions, each user does not need to carry a special positioning device for communication with the positioning module, but only needs to use the existing terminal device to realize positioning communication with the air conditioner, and the connection process of near distance communication is usually simple and can quickly establish a connection, thereby ensuring the accuracy of positioning and realizing the convenience and low cost of user positioning.

[0256] Optionally, the near distance communication signal sent by the terminal device can include but is not limited to device identification information, signal strength information, timestamp information, etc.

[0257] ​The device identification information is used to uniquely identify the terminal device, and can include a MAC address, a Bluetooth address, and a corresponding user of the terminal device, so that the positioning module of the air conditioner can distinguish different users and terminal devices through the device identification information.

[0258] The signal strength information can include an RSSI (Received Signal Strength Indicator), and the positioning module can estimate the distance between the terminal device and the air conditioner according to the signal strength information in combination with a signal propagation model.

[0259] The timestamp information is used to calculate the propagation time of the close-range communication signal to determine the distance between the air conditioner and the terminal device.

[0260] In some embodiments, the controller can also obtain position information corresponding to at least one user according to historical data; the historical data can include historical user positions of different users in different time periods.

[0261] Taking an office scenario as an example, since the user positions corresponding to each user in the office scenario are relatively fixed, and the movements of each user are relatively regular, the controller can record the user positions of each user at a historical time, and determine the user positions of each user at a current time based on this.

[0262] Step 1504: determining a blowing area corresponding to each user according to the position information corresponding to each user.

[0263] In some embodiments, the controller can determine a blowing area corresponding to a blowing range in which a user position is located, according to the blowing range corresponding to each blowing area and the user position.

[0264] Step 1506: determining a target thermal sensation corresponding to each blowing area according to the thermal sensation results corresponding to each user included in each blowing area.

[0265] In some embodiments, the controller can take a thermal sensation result appearing most frequently in a plurality of thermal sensation results included in each blowing area as the target thermal sensation corresponding to each blowing area.

[0266] Step 1508: determining a target blowing area from a plurality of blowing areas based on the working mode of the air conditioner, the target thermal sensation corresponding to each blowing area, and the number of users included in each blowing area.

[0267] Optionally, the controller determines a target blowing area from a plurality of blowing areas based on the working mode of the air conditioner, the target thermal sensation corresponding to each blowing area, and the number of users included in each blowing area, according to the principle of “cooling priority of air blowing, air blowing away from people, air blowing to a hot feeling area, heating priority of air blowing, and air blowing to a cold feeling area”.

[0268] Specifically, in the case that the air conditioner is in the cooling mode, the number of users included in a certain air supply area is the largest, and the target temperature sensation result corresponding to the air supply area is hot, the air supply area can be determined as the target air supply area; if the target temperature sensation result of the air supply area is cold, the air supply assembly needs to avoid the air supply area as much as possible when delivering air flow. If the target temperature sensation results corresponding to multiple air supply areas are all hot, the multiple air supply areas can all be regarded as target air supply areas, and the air supply assembly is controlled to deliver air flow to the multiple target air supply areas in a sweeping manner.

[0269] In step 1510, the air supply direction of the air supply assembly is adjusted according to the target air supply area, so that the air supply assembly delivers air flow towards the target air supply area.

[0270] In the embodiments of the present application, the target air supply area is selected from multiple air supply areas by comprehensively considering the target temperature sensation, the number of users and the working mode of the air conditioner corresponding to each air supply area, and the air supply assembly is caused to deliver air flow towards the target air supply area, so as to meet the temperature sensation demand of the users in the target air supply area, and the air conditioner can realize precise air supply and avoid invalid energy consumption caused by global air supply.

[0271] As shown in FIG. 1, in one embodiment, a parameter control method of an air conditioner is provided, which can be applied to the air conditioner 100. Figure 16 The method can include the following steps 1610-1630.

[0272] In step 1610, the first facial area temperature corresponding to a target user collected by an infrared sensor is acquired, and the first indoor environment temperature collected by a temperature sensor is acquired; the target user is any user in the indoor environment where the air conditioner is located.

[0273] In step 1620, the first facial area temperature and the first indoor environment temperature are input into a temperature sensation recognition model, and the temperature sensation result corresponding to the target user is determined by the temperature sensation recognition model according to the first facial area temperature and the first indoor environment temperature; the first layer decision condition of the temperature sensation recognition model is whether the indoor environment temperature is less than or equal to the first environment temperature threshold, the second layer decision condition of the temperature sensation recognition model includes whether the cheek temperature is less than or equal to the first cheek temperature threshold and whether the indoor environment temperature is less than or equal to the second environment temperature threshold, and the second environment temperature threshold is greater than the first environment temperature threshold; the temperature sensation result includes a temperature sensation category, and the temperature sensation category includes a first temperature sensation, a second temperature sensation or a third temperature sensation, the first temperature sensation indicates that the temperature sensation of the user is cold, the second temperature sensation indicates that the temperature sensation of the user is hot, and the third temperature sensation indicates that the temperature sensation of the user is neutral.

[0274] In step 1630, the target operating parameter corresponding to the air conditioner is determined according to the working mode of the air conditioner and the temperature sensation result corresponding to at least one user.

[0275] In some embodiments, step 1620 can include: determining, by the thermosensation recognition model, whether the first indoor environment temperature is less than or equal to the first environment temperature threshold; if the first indoor environment temperature is less than or equal to the first environment temperature threshold, determining, by the thermosensation recognition model, whether the first cheek temperature in the first facial region temperature is less than or equal to the first cheek temperature threshold; if the first indoor environment temperature is greater than the first environment temperature threshold, determining, by the thermosensation recognition model, whether the first indoor environment temperature is less than or equal to the second environment temperature threshold; in the case that the first cheek temperature is less than or equal to the first cheek temperature threshold, determining, by the thermosensation recognition model, that the thermosensation result corresponding to the target user is the first thermosensation or the third thermosensation; in the case that the first indoor environment temperature is less than or equal to the second environment temperature threshold, determining, by the thermosensation recognition model, that the thermosensation result corresponding to the target user is the second thermosensation or the third thermosensation; in the case that the first indoor environment temperature is greater than the second environment temperature threshold, determining, by the thermosensation recognition model, that the thermosensation result corresponding to the target user is the third thermosensation.

[0276] Optionally, the facial region temperature includes a nose temperature; the third layer decision condition of the thermosensation recognition model includes whether the nose temperature is less than or equal to a first nose temperature threshold, whether the indoor environment temperature is less than or equal to a third environment temperature threshold, and whether the indoor environment temperature is less than or equal to a fourth environment temperature threshold, the third environment temperature threshold being less than the first environment temperature threshold, and the fourth environment temperature threshold being greater than the first environment temperature threshold and less than the second environment temperature threshold.

[0277] In some embodiments, the parameter control method of the air conditioner further includes: if the first cheek temperature is greater than the first cheek temperature threshold, determining, by the thermosensation recognition model, whether the first indoor environment temperature is less than or equal to the third environment temperature threshold; in the case that the first indoor environment temperature is less than or equal to the third environment temperature threshold, determining, by the thermosensation recognition model, that the thermosensation result corresponding to the target user is the first thermosensation or the third thermosensation; in the case that the first indoor environment temperature is greater than the third environment temperature threshold, determining, by the thermosensation recognition model, that the thermosensation result corresponding to the target user is the second thermosensation or the third thermosensation.

[0278] Optionally, the thermosensation recognition model includes five layers of decision conditions, and there are 23 decision branches in total; each decision branch corresponds to a leaf node which is a thermosensation result.

[0279] Optionally, the face region temperature comprises a nose temperature and a forehead temperature; the fourth layer decision condition of the thermal sensation recognition model comprises whether the indoor environment temperature is less than or equal to a fifth environment temperature threshold, whether the indoor environment temperature is less than or equal to a sixth environment temperature threshold, whether the forehead temperature is less than or equal to a first forehead temperature threshold, whether the cheek temperature is less than or equal to a second cheek temperature threshold, whether the nose temperature is less than or equal to a second nose temperature threshold, and whether the forehead temperature is less than or equal to a second forehead temperature threshold; wherein the first forehead temperature threshold is less than the second forehead temperature threshold; the second cheek temperature threshold is greater than the first cheek temperature threshold; the second nose temperature threshold is greater than the first nose temperature threshold; the fifth environment temperature threshold is less than the third environment temperature threshold; and the sixth environment temperature threshold is less than the fifth environment temperature threshold.

[0280] Optionally, the face region temperature comprises a nose temperature, a forehead temperature and an eye temperature; the fifth layer decision condition of the thermal sensation recognition model comprises whether the nose temperature is less than or equal to a third nose temperature threshold, whether the nose temperature is less than or equal to a fourth nose temperature threshold, whether the forehead temperature is less than or equal to a third forehead temperature threshold, whether the nose temperature is less than or equal to a fifth nose temperature threshold, whether the cheek temperature is less than or equal to a third cheek temperature threshold, whether the eye temperature is less than or equal to a first eye temperature threshold, whether the nose temperature is less than or equal to a sixth nose temperature threshold, whether the forehead temperature is less than or equal to a fourth forehead temperature threshold, whether the indoor environment temperature is less than or equal to a seventh environment temperature threshold, and whether the nose temperature is less than or equal to a seventh nose temperature threshold; wherein the third nose temperature threshold is less than the fifth nose temperature threshold; the fifth nose temperature threshold is less than the fourth nose temperature threshold; the fourth nose temperature threshold is less than the first nose temperature threshold; the sixth nose temperature threshold is greater than the second nose temperature threshold; the seventh nose temperature threshold is greater than the sixth nose temperature threshold; the third cheek temperature threshold is less than the second cheek temperature threshold and greater than the first cheek temperature threshold; the third forehead temperature threshold is less than the first forehead temperature threshold; the fourth forehead temperature threshold is greater than the first forehead temperature threshold and less than the second forehead temperature threshold; and the seventh environment temperature threshold is greater than the first environment temperature threshold and less than the fourth environment temperature threshold.

[0281] In some embodiments, the step 1610 further comprises: obtaining a first face region temperature corresponding to the target user collected by the infrared sensor in the current detection period, and obtaining a first indoor environment temperature collected by the temperature sensor in the current detection period.

[0282] The step 1620 further comprises: inputting the first face region temperature and the first indoor environment temperature into the thermal sensation recognition model, determining a first thermal sensation result corresponding to the target user and the current detection period by the thermal sensation recognition model according to the first face region temperature and the first indoor environment temperature; and determining a thermal sensation result corresponding to the target user according to the first thermal sensation results corresponding to the target user and the at least two detection periods respectively.

[0283] Optionally, the temperature sensing result also includes a temperature sensing value.

[0284] In some embodiments, step 1630 also includes: determining the temperature sensing value range to which each temperature sensing value belongs based on the temperature sensing value corresponding to at least one user; determining the temperature compensation value based on each temperature sensing value range and the working mode of the air conditioner; based on the temperature compensation value, performing temperature compensation on the current set temperature of the air conditioner to obtain the target temperature; and adjusting the target operating parameters corresponding to the air conditioner according to the target temperature.

[0285] Optionally, the air conditioner further includes an air supply component; the air supply component is configured to deliver airflow to the indoor environment, and the air supply range covered by the air supply component is divided into multiple air supply areas; the target operating parameters include the air supply direction of the air supply component.

[0286] In some embodiments, step 1630 also includes: obtaining location information corresponding to at least one user; determining the air supply area corresponding to each user based on the location information corresponding to each user; determining the target temperature corresponding to each air supply area based on the temperature sensing results corresponding to each user contained in each air supply area; determining the target air supply area from multiple air supply areas based on the working mode of the air conditioner, the target temperature corresponding to each air supply area, and the number of users contained in each air supply area; adjusting the air supply direction of the air supply component according to the target air supply area so that the air supply component transports airflow toward the target air supply area.

[0287] In some specific embodiments, Figure 17 As shown, in the stable comfort stage of the temperature sensation of each user in the indoor environment, the air conditioner obtains the first facial area temperature corresponding to the target user collected by the infrared sensor, and obtains the first indoor environment temperature collected by the temperature sensor; the first facial area temperature and the first indoor environment temperature are input into the temperature sensation recognition model, and the temperature sensation recognition model determines the temperature sensation result corresponding to the target user according to the first facial area temperature and the first indoor environment temperature; when it is determined that the temperature sensation result of the user is neutral, the current set temperature Tset is kept unchanged; if it is determined that the temperature sensation result of the user is cold, the current set temperature needs to be increased; if it is determined that the temperature sensation result of the user is hot, the current set temperature needs to be lowered.

[0288] The air conditioner adjusts the current set temperature stored in the controller based on the user's temperature sensing result. If the user's temperature sensing result indicates a cooler temperature, the current set temperature is increased by 1°C. If the user's temperature sensing result indicates a warmer temperature, the current set temperature is decreased by 1°C, resulting in the target temperature being changed.

[0289] The air conditioner determines whether Tset+3 < target temperature < Tset-3 is satisfied. If not, it is indicated that the target temperature is not a temperature obtained by the air conditioner automatically controlled according to the temperature sensing recognition model, but a temperature changed by the user through the remote controller, and the target temperature is set to the maximum value Tset±3; if yes, the target temperature is set to the target temperature after the change is completed.

[0290] The air conditioner also determines the relative humidity Rhset according to the target temperature through the temperature and humidity table (Table 1) described above, so that the air conditioner determines the target operating parameters of the air conditioner (for example, adjusts the speed of the indoor fan, as shown in Figure 8

[0291] In the embodiments of the present application, the air conditioner obtains the face region temperature of the user and the indoor environment temperature, and preliminarily judges through the first layer decision condition (whether the indoor environment temperature is less than or equal to the first environment temperature threshold) of the temperature sensing recognition model, and then further adjusts the recognition result of the first layer by combining the partial face region temperature (cheek temperature) of the user and the further indoor environment temperature (second environment temperature threshold judgment), which can more accurately quantify the individual temperature sensation of the user, form a temperature sensing decision branch, so that the controller of the air conditioner can accurately identify and predict the temperature sensation result of each user in the indoor environment; and the controller adjusts the operating parameters of the air conditioner according to the accurate temperature sensation result corresponding to at least one user, so that the indoor environment temperature can more accurately meet the temperature demand of at least one user in the indoor environment, so that the air conditioner can not only meet the comfort demand of the general public, but also realize the individual comfort demand of each user.

[0292] As shown in Figure 18 In one embodiment, a parameter control device 1800 of an air conditioner is provided, which can be applied to the air conditioner described above. The parameter control device 1800 of the air conditioner can include a temperature acquisition module 1810, a temperature sensing recognition module 1820, and a parameter adjustment module 1830.

[0293] The temperature acquisition module 1810 is configured to acquire the first face region temperature corresponding to a target user collected by an infrared sensor, and acquire the first indoor environment temperature collected by a temperature sensor; the target user is any user in the indoor environment where the air conditioner is located.

[0294] ​The temperature sensing recognition module 1820 is configured to input the first facial region temperature and the first indoor environment temperature into a temperature sensing recognition model, and determine a temperature sensing result corresponding to the target user according to the first facial region temperature and the first indoor environment temperature by using the temperature sensing recognition model. A first layer decision condition of the temperature sensing recognition model is whether the indoor environment temperature is less than or equal to a first environment temperature threshold. A second layer decision condition of the temperature sensing recognition model includes whether the cheek temperature is less than or equal to a first cheek temperature threshold and whether the indoor environment temperature is less than or equal to a second environment temperature threshold. The second environment temperature threshold is greater than the first environment temperature threshold. The temperature sensing result includes a temperature sensing category. The temperature sensing category includes a first temperature sensing, a second temperature sensing or a third temperature sensing. The first temperature sensing indicates that the temperature feeling of the user is cold. The second temperature sensing indicates that the temperature feeling of the user is hot. The third temperature sensing indicates that the temperature feeling of the user is neutral.

[0295] The parameter adjustment module 1830 is configured to determine a target operating parameter of the air conditioner according to the operating mode of the air conditioner and the temperature sensing result corresponding to at least one user.

[0296] In the embodiments of the present application, the air conditioner acquires the facial region temperature and the indoor environment temperature of the user, and makes a preliminary judgment by using the first layer decision condition (whether the indoor environment temperature is less than or equal to the first environment temperature threshold) of the temperature sensing recognition model, and then further adjusts the recognition result of the first layer by combining the partial facial region temperature (the cheek temperature) of the user and the further indoor environment temperature (the second environment temperature threshold judgment), so as to more accurately quantify the temperature feeling of the individual user and form a temperature sensing decision branch. Therefore, the controller of the air conditioner can accurately identify and predict the temperature sensing result of each user in the indoor environment. In addition, the controller adjusts the operating parameter of the air conditioner according to the accurate temperature sensing result corresponding to at least one user, so that the indoor environment temperature can more accurately meet the temperature demand of at least one user in the indoor environment, and the air conditioner can meet the comfort demand of the general public and also realize the individual comfort demand of each user.

[0297] The embodiments of the present application disclose a computer readable storage medium storing a computer program, wherein the computer program is executed by a processor to implement the method described in the above embodiments.

[0298] The embodiments of the present application disclose a computer program product including a computer program, and the computer program can be executed by a processor to implement the method described in the above embodiments.

[0299] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "in one embodiment" or "in an embodiment" throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required for the present application.

[0300] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the above-mentioned processes does not necessarily mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0301] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0302] The above describes in detail an air conditioner and a parameter control method for an air conditioner disclosed in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is intended only to facilitate understanding of the method and core concept of the present application. Furthermore, those skilled in the art will appreciate that variations in the specific implementation methods and scope of application may occur based on the concepts of the present application. In summary, the contents of this specification should not be construed as limiting the present application.

Claims

1. An air conditioner characterized by comprising: The air conditioner comprises: A refrigerant circulation loop comprising a compressor, an outdoor heat exchanger and an indoor heat exchanger connected in sequence, configured to circulate refrigerant; A temperature sensor configured to collect an indoor environment temperature corresponding to an indoor environment in which the air conditioner is located; An infrared sensor configured to collect a face region temperature corresponding to at least one user in the indoor environment; the face region temperature comprises a cheek temperature; A controller configured to: Obtain a first face region temperature corresponding to a target user collected by the infrared sensor, and obtain a first indoor environment temperature collected by the temperature sensor; the target user is any user in the indoor environment; Input the first face region temperature and the first indoor environment temperature into a thermal sensation recognition model, and determine a thermal sensation result corresponding to the target user according to the first face region temperature and the first indoor environment temperature through the thermal sensation recognition model; a first layer decision condition of the thermal sensation recognition model is whether the indoor environment temperature is less than or equal to a first environment temperature threshold value, a second layer decision condition of the thermal sensation recognition model comprises whether the cheek temperature is less than or equal to a first cheek temperature threshold value and whether the indoor environment temperature is less than or equal to a second environment temperature threshold value, the second environment temperature threshold value is greater than the first environment temperature threshold value; the thermal sensation result comprises a thermal sensation category, the thermal sensation category comprises a first thermal sensation, a second thermal sensation or a third thermal sensation, the first thermal sensation indicates that the temperature sensation of the user is cold, the second thermal sensation indicates that the temperature sensation of the user is hot, and the third thermal sensation indicates that the temperature sensation of the user is neutral; According to the working mode of the air conditioner and the thermal sensation result corresponding to the at least one user respectively, determine a target operating parameter corresponding to the air conditioner.

2. The air conditioner of claim 1, wherein The determination of the thermal sensation result corresponding to the target user through the thermal sensation recognition model according to the first face region temperature and the first indoor environment temperature comprises: Determine whether the first indoor environment temperature is less than or equal to the first environment temperature threshold value through the thermal sensation recognition model; If the first indoor environment temperature is less than or equal to the first environment temperature threshold value, determine whether the first cheek temperature in the first face region temperature is less than or equal to the first cheek temperature threshold value through the thermal sensation recognition model; If the first indoor environment temperature is greater than the first environment temperature threshold value, determine whether the first indoor environment temperature is less than or equal to the second environment temperature threshold value through the thermal sensation recognition model; In the case that the first cheek temperature is less than or equal to the first cheek temperature threshold value, determine the thermal sensation result corresponding to the target user as the first thermal sensation or the third thermal sensation through the thermal sensation recognition model; In the case that the first indoor environment temperature is less than or equal to the second environment temperature threshold value, determine the thermal sensation result corresponding to the target user as the second thermal sensation or the third thermal sensation through the thermal sensation recognition model; In a case that the first indoor environment temperature is greater than the second environment temperature threshold, the thermosensation recognition model determines the thermosensation result corresponding to the target user as the third thermosensation.

3. The air conditioner of claim 2, wherein The face region temperature includes a nose temperature; a third layer decision condition of the thermosensation recognition model includes whether the nose temperature is less than or equal to a first nose temperature threshold, whether the indoor environment temperature is less than or equal to a third environment temperature threshold, and whether the indoor environment temperature is less than or equal to a fourth environment temperature threshold, the third environment temperature threshold is less than the first environment temperature threshold, and the fourth environment temperature threshold is greater than the first environment temperature threshold and less than the second environment temperature threshold; After the controller determines, by the thermosensation recognition model, whether the first cheek temperature in the first face region temperature is less than or equal to the first cheek temperature threshold, the controller is further configured to: If the first cheek temperature is greater than the first cheek temperature threshold, the thermosensation recognition model determines whether the first indoor environment temperature is less than or equal to the third environment temperature threshold; In a case that the first indoor environment temperature is less than or equal to the third environment temperature threshold, the thermosensation recognition model determines the thermosensation result corresponding to the target user as the first thermosensation or the third thermosensation; In a case that the first indoor environment temperature is greater than the third environment temperature threshold, the thermosensation recognition model determines the thermosensation result corresponding to the target user as the second thermosensation or the third thermosensation.

4. The air conditioner according to any one of claims 1 to 3, characterized by The thermosensation recognition model includes five layers of decision conditions, and a total of 23 decision branches; each leaf node corresponding to the decision branch is a thermosensation result.

5. The air conditioner of claim 4, wherein The face region temperature includes a nose temperature and a forehead temperature; a fourth layer decision condition of the thermosensation recognition model includes whether the indoor environment temperature is less than or equal to a fifth environment temperature threshold, whether the indoor environment temperature is less than or equal to a sixth environment temperature threshold, whether the forehead temperature is less than or equal to a first forehead temperature threshold, whether the cheek temperature is less than or equal to a second cheek temperature threshold, whether the nose temperature is less than or equal to a second nose temperature threshold, and whether the forehead temperature is less than or equal to a second forehead temperature threshold; The first forehead temperature threshold is less than the second forehead temperature threshold; the second cheek temperature threshold is greater than the first cheek temperature threshold; the second nose temperature threshold is greater than the first nose temperature threshold; the fifth environment temperature threshold is less than the third environment temperature threshold; and the sixth environment temperature threshold is less than the fifth environment temperature threshold.

6. The air conditioner of claim 4, wherein The face region temperatures include a nose temperature, a forehead temperature, and an eye temperature; and the fifth layer decision condition of the temperature sensing recognition model includes whether the nose temperature is less than or equal to a third nose temperature threshold, whether the nose temperature is less than or equal to a fourth nose temperature threshold, whether the forehead temperature is less than or equal to a third forehead temperature threshold, whether the nose temperature is less than or equal to a fifth nose temperature threshold, whether a cheek temperature is less than or equal to a third cheek temperature threshold, whether the eye temperature is less than or equal to a first eye temperature threshold, whether the nose temperature is less than or equal to a sixth nose temperature threshold, whether the forehead temperature is less than or equal to a fourth forehead temperature threshold, whether an indoor environment temperature is less than or equal to a seventh environment temperature threshold, and whether the nose temperature is less than or equal to a seventh nose temperature threshold; The third nose temperature threshold is less than the fifth nose temperature threshold; the fifth nose temperature threshold is less than the fourth nose temperature threshold; the fourth nose temperature threshold is less than the first nose temperature threshold; the sixth nose temperature threshold is greater than a second nose temperature threshold; the seventh nose temperature threshold is greater than the sixth nose temperature threshold; the third cheek temperature threshold is less than a second cheek temperature threshold and greater than the first cheek temperature threshold; the third forehead temperature threshold is less than a first forehead temperature threshold; the fourth forehead temperature threshold is greater than the first forehead temperature threshold and less than a second forehead temperature threshold; and the seventh environment temperature threshold is greater than a first environment temperature threshold and less than a fourth environment temperature threshold.

7. The air conditioner of claim 1, wherein The first face region temperature corresponding to the target user collected by the infrared sensor and the first indoor environment temperature collected by the temperature sensor are obtained. The first face region temperature corresponding to the target user collected by the infrared sensor in a current detection period and the first indoor environment temperature collected by the temperature sensor in the current detection period are obtained. The first face region temperature and the first indoor environment temperature are input into a temperature sensing recognition model, and a first temperature sensing result corresponding to the target user and the current detection period is determined by the temperature sensing recognition model according to the first face region temperature and the first indoor environment temperature. The first face region temperature and the first indoor environment temperature are input into a temperature sensing recognition model, and a first temperature sensing result corresponding to the target user and the current detection period is determined by the temperature sensing recognition model according to the first face region temperature and the first indoor environment temperature. The target user's temperature sensing result is determined according to the first temperature sensing result corresponding to the target user and at least two detection periods, respectively.

8. The air conditioner of claim 1, wherein The temperature sensing result further includes a temperature sensing value; and the target operation parameter of the air conditioner is determined according to the working mode of the air conditioner and the temperature sensing result corresponding to the at least one user, respectively. The temperature sensing value range to which each temperature sensing value belongs is determined according to the temperature sensing value corresponding to the at least one user, respectively; A temperature compensation value is determined according to each temperature sensing value range and the working mode of the air conditioner. Compensate a current set temperature of the air conditioner based on the temperature compensation value to obtain a target temperature; Adjust a target operation parameter corresponding to the air conditioner according to the target temperature.

9. The air conditioner of claim 1, wherein The air conditioner further comprises an air supply assembly configured to deliver air flow to the indoor environment, and an air supply range covered by the air supply assembly is divided into a plurality of air supply areas; the target operation parameter comprises an air supply direction of the air supply assembly; The target operation parameter corresponding to the air conditioner is determined according to the working mode of the air conditioner and the temperature sensing result corresponding to each of the at least one user, comprising: Obtaining position information corresponding to each of the at least one user; Determining an air supply area corresponding to each of the users according to the position information corresponding to each of the users; Determining a target temperature sensing corresponding to each of the air supply areas according to the temperature sensing result corresponding to each of the users included in each of the air supply areas; Determining a target air supply area from the plurality of air supply areas based on the working mode of the air conditioner, the target temperature sensing corresponding to each of the air supply areas, and the number of users included in each of the air supply areas; Adjusting the air supply direction of the air supply assembly according to the target air supply area, so that the air supply assembly delivers air flow towards the target air supply area.

10. A method of controlling parameters of an air conditioner, characterized by, The method applied to an air conditioner, comprising: Obtaining a first facial area temperature corresponding to a target user collected by an infrared sensor, and obtaining a first indoor environment temperature collected by a temperature sensor; the target user is any user in an indoor environment where the air conditioner is located; Inputting the first facial area temperature and the first indoor environment temperature into a temperature sensing identification model, and determining a temperature sensing result corresponding to the target user according to the first facial area temperature and the first indoor environment temperature through the temperature sensing identification model; a first layer decision condition of the temperature sensing identification model is whether the indoor environment temperature is less than or equal to a first environment temperature threshold value, a second layer decision condition of the temperature sensing identification model comprises whether the cheek temperature is less than or equal to a first cheek temperature threshold value and whether the indoor environment temperature is less than or equal to a second environment temperature threshold value, the second environment temperature threshold value is greater than the first environment temperature threshold value; the temperature sensing result comprises a temperature sensing category, the temperature sensing category comprises a first temperature sensing, a second temperature sensing or a third temperature sensing, the first temperature sensing indicates that the temperature feeling of the user is cold, the second temperature sensing indicates that the temperature feeling of the user is hot, and the third temperature sensing indicates that the temperature feeling of the user is neutral; Adjusting a target operation parameter corresponding to the air conditioner according to the working mode of the air conditioner and the temperature sensing result corresponding to at least one user in the indoor environment.

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