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; determining a target temperature compensation value according to the temperature sensing result corresponding to the at least one user; based on the target temperature compensation value, the current set temperature of the air conditioner is subjected to temperature compensation, and the target temperature is obtained; and according to the target temperature, target operation parameters corresponding to the air conditioner are adjusted. According to the air conditioner, the current set temperature of the air conditioner can be accurately and intelligently compensated, so that 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, air conditioners have 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 the user. At present, the user manually sets the temperature or adjusts the parameters of the air conditioner through intelligent mode, etc., the intelligent degree of the air conditioner is low, which affects the user's 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 compensate the current set temperature of the air conditioner, thereby meeting the comfort requirements of the user and improving the user's experience.

[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 is configured to circulate the refrigerant;

[0006] A first temperature sensor configured to collect an indoor environment temperature corresponding to an indoor environment where 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;

[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 first temperature sensor; the target user is any user in the indoor environment;

[0010] Input the first face area 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 face area temperature and the first indoor environment temperature through the temperature sensing recognition model;

[0011] Determine a target temperature compensation value according to the temperature sensing result corresponding to each of the at least one user;

[0012] Compensate the current set temperature of the air conditioner based on the target temperature compensation value to obtain a target temperature;

[0013] Adjust a target operating parameter of the air conditioner according to the target temperature.

[0014] In the embodiments of the present application, the controller obtains the facial region temperature of the user and the indoor environment temperature, accurately identifies and predicts the thermal sensation result of each user in the indoor environment through the thermal sensation recognition model, and determines the temperature compensation value based on the thermal sensation result of each user, so that the set temperature after compensation is more consistent with the thermal comfort temperature of at least one user in the same indoor environment, and the operating parameter of the air conditioner is adjusted according to the set temperature after compensation, thereby realizing the temperature comfort demand of at least one user in the same air conditioner scene.

[0015] As an optional implementation, the thermal sensation result includes a thermal sensation value, and the target temperature compensation value is determined according to the thermal sensation result of each user, including:

[0016] The target temperature compensation value is determined according to the target thermal sensation value range to which the thermal sensation value of each user corresponds.

[0017] In the embodiments of the present application, the thermal sensation result is refined into a thermal sensation value, and the target temperature compensation value is determined according to the target thermal sensation value range to which the thermal sensation value corresponds, so that the different thermal states of the user can be more accurately reflected, and the difference between individual users can be fully considered without using a fixed temperature compensation, thereby improving the overall comfort of the user using the air conditioner.

[0018] As an optional implementation, the target temperature compensation value is determined according to the target thermal sensation value range to which the thermal sensation value of each user corresponds, including:

[0019] In the case where the indoor environment only has the target user, the target temperature compensation value is determined according to the target thermal sensation value range to which the thermal sensation value of the target user corresponds based on a preset corresponding relationship, and the preset corresponding relationship is used to represent the corresponding relationship between the preset thermal sensation value range and the temperature compensation value; or,

[0020] In the case where the indoor environment has multiple users, and the target thermal sensation value range to which the thermal sensation value of each user corresponds is the same, the target temperature compensation value is determined according to the target thermal sensation value range based on the preset corresponding relationship.

[0021] In the embodiments of the application, when only the target user exists in the indoor environment, the compensation value is directly determined according to the preset corresponding relationship, or when multiple users exist in the indoor environment and the thermal sensation values of the users belong to the same target thermal sensation value range, the target temperature compensation value is also determined based on the preset corresponding relationship. Through the preset corresponding relationship between the thermal sensation value range and the temperature compensation value, the air conditioner can obtain an accurate target temperature compensation value, thereby avoiding the problem of inaccurate determination of the temperature compensation value caused by unordered superposition of individual differences of users, sudden environmental factors and the like, and further ensuring that the air conditioner can accurately adjust the indoor temperature and improve the comfort of the user using the air conditioner in different scenarios.

[0022] As an optional implementation, 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 user's thermal sensation is cold, the second thermal sensation indicates that the user's thermal sensation is hot, and the third thermal sensation indicates that the user's thermal sensation is neutral.

[0023] The target temperature compensation value is determined according to the thermal sensation result corresponding to each of the at least one user.

[0024] The target temperature compensation value is determined according to the thermal sensation category corresponding to each of the at least one user and the working mode of the air conditioner.

[0025] In the embodiments of the application, the thermal sensation of the user is divided into three clear thermal sensation categories, which can more accurately reflect the subjective sensation of the user to the temperature, so that the air conditioner can quickly and intuitively understand the temperature demand of the user. Through the combination of the thermal sensation category and the working mode, the air conditioner can determine a suitable target temperature compensation value, thereby avoiding the problem of excessive compensation or insufficient compensation of the current set temperature, and improving the rationality and effectiveness of temperature adjustment.

[0026] As an optional implementation, the target temperature compensation value is determined according to the thermal sensation category corresponding to each of the at least one user and the working mode of the air conditioner, including:

[0027] In the case where the air conditioner is in the heating mode, if the thermal sensation category corresponding to each of the at least one user is the first thermal sensation, the target temperature compensation value is determined as a first value, and the first value is greater than 0; and / or,

[0028] In the case where the air conditioner is in the heating mode, if the thermal sensation category corresponding to each of the at least one user is the second thermal sensation, the target temperature compensation value is determined as a second value, and the second value is less than 0; the absolute value of the first value is greater than the absolute value of the second value; and / or,

[0029] In a case where the air conditioner is in the heating mode, if there are at least two users corresponding to different temperature sensation categories or the at least one user corresponds to the third temperature sensation category, a target temperature compensation value is determined to be 0.

[0030] In the embodiments of the application, the controller determines a target temperature compensation value according to different user temperature sensation category combinations in the air conditioner heating mode. When all users are cold, a first value greater than 0 is determined as the compensation value, which can quickly increase the indoor environment temperature to meet the user's heating demand. If all users are hot, a second value less than 0 is compensated, and the first value has a larger absolute value, which avoids excessive heating and prevents users from overheating. When the user temperature sensation categories are different or neutral, the compensation value is set to 0, which avoids energy waste caused by invalid adjustment and maintains a relatively suitable room temperature environment, thereby improving the user experience in the heating scenario and the energy efficiency of the air conditioner.

[0031] As an optional implementation, the target temperature compensation value is determined according to the at least one user corresponding temperature sensation category and the working mode of the air conditioner, comprising:

[0032] In a case where the air conditioner is in the heating mode, if there are at least two users corresponding to different temperature sensation categories or the at least one user corresponds to the third temperature sensation category, a target temperature compensation value is determined to be 0.

[0033] In a case where the air conditioner is in the heating mode, if there are at least two users corresponding to different temperature sensation categories or the at least one user corresponds to the third temperature sensation category, a target temperature compensation value is determined to be 0.

[0034] In a case where the air conditioner is in the heating mode, if there are at least two users corresponding to different temperature sensation categories or the at least one user corresponds to the third temperature sensation category, a target temperature compensation value is determined to be 0.

[0035] In the embodiments of the application, the controller determines a target temperature compensation value according to different user temperature sensation category combinations in the air conditioner heating mode. When all users are cold, a first value greater than 0 is determined as the compensation value, which can quickly increase the indoor environment temperature to meet the user's heating demand. If all users are hot, a second value less than 0 is compensated, and the first value has a larger absolute value, which avoids excessive heating and prevents users from overheating. When the user temperature sensation categories are different or neutral, the compensation value is set to 0, which avoids energy waste caused by invalid adjustment and maintains a relatively suitable room temperature environment, thereby improving the user experience in the heating scenario and the energy efficiency of the air conditioner.

[0036] As an optional implementation, the temperature sensing result further includes a temperature sensing value;

[0037] The target temperature compensation value is determined according to the temperature sensing category corresponding to each of the at least one user and the working mode of the air conditioner.

[0038] The temperature sensing level of each of the at least one user in the corresponding temperature sensing category is determined according to the target temperature sensing value range to which the temperature sensing value corresponding to each of the at least one user belongs.

[0039] The target temperature compensation value is determined according to the temperature sensing category corresponding to each of the at least one user, the temperature sensing level in the corresponding temperature sensing category, and the working mode of the air conditioner.

[0040] In the embodiments of the application, the controller introduces the temperature sensing value and divides the target temperature sensing value range to determine the temperature sensing level on the basis of the temperature sensing category, further refining the evaluation of the user's thermal sensation temperature; in combination with the temperature sensing category, the temperature sensing level, and the working mode of the air conditioner, the controller can obtain a more accurate target temperature compensation value according to the actual thermal sensation of the user, so that the compensated temperature can meet the comfort demand of at least one user in the indoor environment.

[0041] As an optional implementation, the air conditioner further includes a second temperature sensor.

[0042] The second temperature sensor is configured to collect an outdoor environment temperature corresponding to an outdoor environment in which the outdoor heat exchanger is located.

[0043] The controller is further configured to:

[0044] Obtain the first outdoor environment temperature collected by the second temperature sensor, and obtain the clothing thermal resistance and the human metabolic rate corresponding to each of the at least one user.

[0045] Determine a first temperature compensation value according to the first outdoor environment temperature, the clothing thermal resistance, and the human metabolic rate corresponding to each of the at least one user.

[0046] The current set temperature of the air conditioner is temperature-compensated based on the target temperature compensation value to obtain a target temperature.

[0047] The current set temperature of the air conditioner is temperature-compensated based on the target temperature compensation value and the first temperature compensation value to obtain a target temperature.

[0048] In the embodiment of the application, the controller determines the first temperature compensation value by comprehensively considering the outdoor environment temperature, the user clothing thermal resistance and the human metabolic rate, and then uses the first temperature compensation value and a target temperature compensation value determined by the temperature sensing result of at least one user in the indoor environment together to compensate the current set temperature of the air conditioner, so that the controller can more accurately control the indoor environment temperature by controlling the operating parameters, avoid excessive cooling or heating, reduce energy waste, and achieve the temperature comfort demand of at least one user in the same air conditioner scene.

[0049] 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 first temperature sensor comprises:

[0050] The first facial region temperature corresponding to the target user collected by the infrared sensor in the current detection period and the first indoor environment temperature collected by the first temperature sensor in the current detection period are obtained.

[0051] The first facial region temperature and the first indoor environment temperature are input into a temperature sensing recognition model, and the temperature sensing recognition model is used to determine the temperature sensing result corresponding to the target user according to the first facial region temperature and the first indoor environment temperature.

[0052] The first facial region temperature and the first indoor environment temperature are input into a temperature sensing recognition model, and the temperature sensing recognition model is used to determine the first temperature sensing result corresponding to the target user and the current detection period according to the first facial region temperature and the first indoor environment temperature.

[0053] The temperature sensing result corresponding to the target user is determined according to the first temperature sensing results corresponding to the target user and at least two detection periods respectively.

[0054] In the embodiment of the application, the air conditioner obtains the first temperature sensing results corresponding to the target user in multiple detection periods, and fuses the first temperature sensing results of multiple detection periods, so as to reduce the random error of single temperature collection and the randomness of single temperature sensing recognition model result, and ensure the accuracy and stability of the final temperature sensing result corresponding to the target user.

[0055] The embodiment of the application discloses a parameter control method of an air conditioner, comprising:

[0056] The first facial region temperature corresponding to the target user collected by the infrared sensor and the first indoor environment temperature collected by the first temperature sensor are obtained, and the target user is any user in the indoor environment where the air conditioner is located.

[0057] input the first facial region temperature and the first indoor environment temperature into a thermal sensation recognition model, and 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;

[0058] determine a target temperature compensation value according to the thermal sensation result corresponding to the at least one user respectively;

[0059] compensate the current set temperature of the air conditioner based on the target temperature compensation value to obtain a target temperature;

[0060] adjust the target running parameter corresponding to the air conditioner according to the target temperature.

[0061] In the embodiments of the present application, the air conditioner obtains the facial region temperature and the indoor environment temperature of the user, accurately identifies and predicts the thermal sensation result of each user in the indoor environment through the thermal sensation recognition model, and accurately determines the temperature compensation value based on the thermal sensation result corresponding to the at least one user respectively, so that the set temperature after compensation is more consistent with the thermal comfort temperature of the at least one user in the same indoor environment, and the running parameter of the air conditioner is adjusted according to the set temperature after compensation, thereby realizing the temperature comfort demand of the at least one user in the same air conditioner scene. BRIEF DESCRIPTION OF DRAWINGS

[0062] 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 be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0063] Figure 1 An application scene diagram of the air conditioner in an embodiment;

[0064] Figure 2 A control flow diagram of the air conditioner running in an embodiment;

[0065] Figure 3 A control logic diagram of the controller in an embodiment;

[0066] Figure 4 A schematic diagram of the addressing process of the controller in a cooling mode in an embodiment;

[0067] Figure 5 A schematic diagram of the addressing process of the controller in a heating mode in an embodiment;

[0068] Figure 6 A structural block diagram of the air conditioner in an embodiment;

[0069] Figure 7 a humidity change curve in one embodiment;

[0070] Figure 8 a control flow chart of the controller for the indoor fan when the controller is in the cooling mode in one embodiment;

[0071] Figure 9 a control flow chart of the controller in one embodiment;

[0072] Figure 10 a control flow chart of the controller in another embodiment;

[0073] Figure 11 a control flow chart of the controller in yet another embodiment;

[0074] Figure 12A a structure schematic diagram of the air conditioner in one embodiment;

[0075] Figure 12B a control flow chart of the controller in one embodiment;

[0076] Figure 13 a control flow chart of the controller in another embodiment;

[0077] Figure 14 a division schematic diagram of the air supply range covered by the air supply assembly in one embodiment;

[0078] Figure 15 a control flow chart of the controller in one embodiment;

[0079] Figure 16 a flow chart of the parameter control method of the air conditioner in one embodiment;

[0080] Figure 17 a flow chart of the parameter control method of the air conditioner in another embodiment;

[0081] Figure 18 a block diagram of the parameter control device of the air conditioner in one embodiment. DETAILED DESCRIPTION

[0082] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only 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 the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0083] It should be noted that the terms "comprising" and "having" and any variations thereof used in the present application and the accompanying drawings are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to such processes, methods, products or devices.

[0084] 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.

[0085] Figure 1 An application scenario diagram of an air conditioner in an embodiment is shown. 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.

[0086] 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.

[0087] The indoor environment 110 refers to a closed or semi-closed space provided with an air conditioner. The indoor environment 110 can include but is not limited to an office scene, a library scene, a high-speed rail car scene, a hospital ward scene, a school classroom scene, etc.

[0088] Optionally, the distribution position of the air conditioner 100 in the indoor environment 110 can be set at the center of the indoor environment 110 (as shown in Figure 1 The distribution position of the air conditioner 100 in the indoor environment 110 can also be set at each corner position of the indoor environment 110, or at any position, which is not limited herein.

[0089] 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 Figure 1 It can also be one user, two users, ten users, etc., or even no user in the indoor environment 110. Moreover, the distribution position of the at least one user 120 in the indoor environment 110 can be uniformly distributed according to the number of users, or can be randomly distributed, or can change over time, which is not limited herein.

[0090] In the prior art, an air conditioner is usually designed to control comfort by using a specified single temperature index and a specified single humidity index. However, the air conditioner is adjusted only according to the single temperature index and the single humidity index, which 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 the single humidity index adjustment cannot meet the needs of users.

[0091] In addition, the air conditioner usually takes the overall indoor environment as a control unit and cannot meet the individual differentiated needs. However, due to different factors such as the physical condition, activity intensity, and clothing of each user, the temperature needs are also different. For example, in an office scenario, some employees may hope that the indoor environment temperature is reduced because of faster metabolism, while some other employees may hope that the indoor environment temperature is increased because of weaker constitution. The air conditioner is difficult to take into account the individualized needs of different users. Therefore, the air conditioner weakens the individual differences of users in the indoor environment and cannot simultaneously meet the comfort of all users in the indoor environment. In addition, the air conditioner has certain limitations in identifying and adjusting the control of individual thermal comfort.

[0092] Embodiments of the present application disclose an air conditioner and a parameter control method of the air conditioner. The air conditioner can accurately and intelligently adjust the operating parameters of the air conditioner, thereby meeting the comfort requirements of users and improving the use experience of users.

[0093] In the present application, the comfort mode of the air conditioner can be divided into two stages (an initial comfort stage and a stable comfort stage). In the initial comfort stage, a PMV (Predicted Mean Vote) model is used as the core to globally and quickly adjust the temperature. In the cooling mode, the PMV is selected as -0.5, and in the heating mode, the PMV is selected as +0.5. The air conditioner determines a basic set temperature according to the PMV comfort interval and the initial humidity, and determines a compensation value according to the outdoor ambient temperature, the clothing thermal resistance, and the metabolic rate. Finally, an initial set temperature is generated, and the operating parameters of the air conditioner are controlled to quickly reach the boundary value close to the target comfort interval. In 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, thereby achieving accurate control of individual comfort.

[0094] For example, Figure 2As shown, the overall control of the air conditioner operation is as follows: when the air conditioner is running, it enters the comfort stage and activates the functions of various sensors. The controller of the air conditioner collects the indoor ambient temperature through the first temperature sensor and the indoor ambient 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 perception of the target user based on the temperature perception recognition model according to the facial area temperature of the target user and the indoor ambient temperature, and then adjust to obtain the target temperature). Based on the target temperature, the controller controls the air conditioner to operate automatically according to the target operating parameters, so that the indoor ambient temperature can meet the personalized comfort needs of each user and improve user comfort.

[0095] The following is an introduction to the meanings of some terms and symbols involved in this application, as shown in Table 1:

[0096] Table 1

[0097]

[0098] The following is an explanation of the initial comfort stage based on the PMV model.

[0099] In the embodiment of the present application, the air conditioner relies on the temperature and humidity addressing rules for addressing to determine the target temperature of the initial comfort stage; the temperature and humidity addressing rules are based on the calculation of the expected average thermal sensation index value of the human body thermal sensation index PMV, and through experimental calculation, a "comfort temperature and humidity reference table (PMV value within ±0.5)" is generated as a reference table for air conditioner comfort control (as shown in Table 2).

[0100] Table 2 Comfort temperature and humidity benchmark table

[0101]

[0102] Specifically, the air conditioner detects the outdoor ambient temperature Tout via a second temperature sensor, the indoor ambient temperature Tin via a first temperature sensor, and the indoor relative humidity Rh via a humidity sensor. Based on the temperature zone corresponding to the acquired outdoor ambient temperature Tout, combined with the thermal resistance of clothing worn by the human body and the human metabolic rate M, different first temperature compensation values ​​T_compensate are obtained, and the specific operating mode (cooling / heating / air supply) of the air conditioner is determined. Then, based on a comfort temperature and humidity reference table, the acquired indoor relative humidity Rh is used as a pointer to address the reference table, and the target set temperature Ts_comfort for the subsequent stable comfort stage is determined, so that the air conditioner operates at Ts_comfort as the target set value.

[0103] In some embodiments, for the initial comfort stage, the temperature and humidity addressing from the beginning always revolves around the six PMV values ​​that affect human thermal sensation factors: environmental parameters (air temperature, relative humidity, wind speed, average radiant temperature) and human parameters (human metabolic rate, clothing thermal resistance), with human comfort control as the core.

[0104] In some embodiments, the outdoor ambient temperature Tout is re-determined every 2 hours to determine a new temperature zone. If the system remains in the previous operating zone, the system continues in the previous mode and stage. If the system is in a new temperature zone, the system interrupts the previous operating mode and enters a new operating mode based on the new temperature zone's internal ambient temperature Tin and indoor relative humidity Rh. If the indoor sensor fails or overflows, or if there is no humidity sensor, Rh defaults to 65%.

[0105] Specifically, if Figure 3 As shown, the air conditioner obtains the outdoor ambient temperature Tout and determines the temperature zone to which Tout belongs. When Tout ≤ 13°C, it is determined to be the first temperature zone; when 13°C < Tout ≤ 18°C, it is determined to be the second temperature zone; when 18°C ​​< Tout ≤ 24°C, it is determined to be the third temperature zone; and when Tout > 24°C, it is determined to be the fourth temperature zone. The air conditioner determines the corresponding temperature compensation value T_compensation based on the corresponding relationship between clothing thermal resistance, human metabolic rate, and the first temperature compensation value (as shown in Table 3), combined with the temperature zone, clothing thermal resistance clo, and human metabolic rate M. The air conditioner stores a temperature and humidity reference table. According to the operating mode of the air conditioner and the comfort temperature and humidity reference table (Table 1), the controller uses the relative humidity Rh of the indoor environment obtained as a pointer to address in the reference table and determine the target temperature Ts_compensation for the subsequent stable comfort stage.

[0106] Table 3 Correspondence between clothing thermal resistance, human metabolic rate and first temperature compensation value

[0107] Tout (°C) clo M Tsupp (°C) > 24 (4th zone) 0.5 1.2 0 > 18, < 24 (3rd zone) 0.8 1.2 -2 > 13, < 18 (2nd zone) 1.0 1.2 -3 < 13 (1st zone) 1.0 1.2 -3

[0108] In some embodiments, the controller of the air conditioner may be addressed according to the operating mode of the air conditioner to determine the target set temperature Ts_initial in the initial comfort stage and the target set temperature Ts_comfort in the stable comfort stage.

[0109] Specifically, taking the cooling mode as an example, Figure 4As shown, if Rh < 30% (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% (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% (upper and lower limits of the comfort humidity in the comfort table), the lowest temperature corresponding to the humidity closest to Rh in the comfort table is Ts_initial (for example, if Rh = 43%, the humidity closest to Rh 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 upper limit of the comfort humidity (26.5°C) and the lower limit of the comfort humidity (24°C) corresponding to Rh = 50% in the comfort table is taken as Ts_comfort, and the default value is 25.5°C.

[0110] Specifically, taking the heating mode as an example, as shown in Figure 5 As shown, if Rh < 30% (lower limit of the comfort humidity in the comfort table), the highest temperature corresponding to Rh 30% in the comfort table is Ts_initial (Ts_initial = 27°C); if Rh > 65% (upper limit of the comfort humidity in the comfort table), the highest temperature corresponding to Rh 65% in the comfort table is Ts_initial (Ts_initial = 26°C); if 65% ≥ Rh ≥ 30% (upper and lower limits of the comfort humidity in the comfort table), the lowest temperature corresponding to the humidity closest to Rh in the comfort table is Ts_initial (for example, if Rh = 43%, the humidity closest to Rh in the comfort table is Rh 45%, and the highest temperature corresponding to Rh 45% is Ts_initial = 26.5°C). The average value (25.25°C) of the upper limit of the comfort humidity (26.5°C) and the lower limit of the comfort humidity (24°C) corresponding to Rh = 50% in the comfort table is taken as Ts_comfort, and the default value is 25.5°C.

[0111] Specifically, in the air supply mode of the air conditioner, no addressing operation is performed.

[0112] 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 first temperature sensor 620, an infrared sensor 630, and a controller 640.

[0113] The refrigerant circulation loop 610 is configured to circulate refrigerant to realize the refrigeration or heating function of the air conditioner 100.

[0114] Optionally, as shown in Figure 6 The refrigerant circulation loop 610 includes a compressor 611, an outdoor heat exchanger 612, and an indoor heat exchanger 613 connected in sequence.

[0115] The outdoor heat exchanger 612 is configured to exchange heat with outdoor air; the compressor 611 is configured to compress the refrigerant in a low-pressure state into 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.

[0116] 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), and 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.

[0117] 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), and 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.

[0118] The first temperature sensor 620 is configured to collect the indoor environment temperature corresponding to the indoor environment 110 of the air conditioner 100.

[0119] Optionally, the first temperature sensor 620 can be 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.

[0120] 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, that is, the temperature condition that the user 120 in the indoor environment 110 can feel, which directly affects the user's experience.

[0121] Optionally, the first 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 first temperature sensor 620 can collect the temperature of the indoor environment 110 once every minute, every few 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.

[0122] 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.

[0123] The infrared sensor 630 is configured to collect a face region temperature corresponding to at least one user in the indoor environment.

[0124] Optionally, the infrared sensor 630 can adopt an infrared thermal imaging camera, a thermocouple sensor array, a single-point thermocouple sensor, etc.

[0125] For example, the infrared thermal imaging camera captures the facial infrared radiation through a Microbolometer or a QWIP (Quantum Well Infrared Photodetector), generates an infrared thermal imaging frame (the resolution is usually 80x60-640x512 pixels), and thus obtains the face region temperature corresponding to the user.

[0126] Optionally, the face region temperature includes a cheek temperature, a nose temperature, a forehead temperature, and an eye temperature.

[0127] For example, the air conditioner can identify the human head contour from the complex background based on an improved target detection algorithm (input is the infrared thermal imaging frame, a stereo YOLOv7-tiny model), filter through a temperature threshold (for example, 28-37°C) and screen through an area threshold (for example, >200 pixels), and mark as a candidate region; adopt a PnP (Perspective-n-Point) algorithm, combine the infrared camera calibration parameters (for example, focal length fx / fy, principal point cx / cy, distortion coefficient k1-k3, etc.), 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 average (the weight is inversely proportional to the Euclidean distance from the vertex to the region center) on the vertex temperatures in the grid belonging to the cheek (for example, key points 17-22), the nose (for example, key points 27-36), the forehead (for example, key points 1-16), and the eye (for example, key points 37-48), and calculate the quantized temperature values of the cheek temperature, the nose temperature, the forehead temperature, and the eye temperature.

[0128] In some embodiments, the air conditioner 100 can further include a humidity sensor configured to collect the relative humidity in the indoor environment.

[0129] In some embodiments, the air conditioner 100 further comprises an outdoor fan and an indoor fan. The outdoor fan drives 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 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 indoor air, thereby providing a comfortable indoor environment 110 for the user 120.

[0130] Specifically, the outdoor fan and the indoor fan each comprise a deflector and a damper. The deflector is used to guide the flow direction of 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 damper is used to control the flow of air. When the air conditioner 100 needs to increase the heat exchange amount, the opening of the damper 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 damper is reduced to reduce the air flow and reduce energy consumption.

[0131] 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 damper.

[0132] Specifically, the controller can control the indoor fan according to the humidity control and humidity retention 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 speeds, the critical point of dry and wet working conditions is different. The higher the speed, the higher the inlet relative humidity to enter the wet working condition. The smaller the speed, the lower the inlet relative humidity to enter the wet working condition." Figure 7

[0133] Table 4 Absolute dehumidification amount and indoor unit speed relationship in 4 hours

[0134] Absolute moisture removal over 4 hours 700 rpm 870 rpm 1000 rpm 1250 rpm Indoor 27°C / 15.8°C (30% RH) 3.90 kg 3.24 kg 3.01 kg 2.94 kg Indoor 27°C / 19°C (47% RH) 3.68 kg 4.51 kg 4.79 kg 4.11 kg Indoor 27°C / 21.2°C (60% RH) 4.21 kg 5.45 kg 4.66 kg 4.70 kg

[0135] In some embodiments, as shown in Figure 8 Based on the above humidity control and humidity retention theory, when the working mode of the air conditioner is the cooling mode, the control mode of the air conditioner on the indoor fan can include the following steps.

[0136] Step 802, the air conditioner starts running.

[0137] Step 804, the indoor environment temperature Tin, the outdoor environment temperature Tout, the relative humidity Rh of the indoor environment, and the relative humidity Rhi of the indoor instantaneous sampling are obtained. ​

[0138] Step 806, determine the air conditioner to run in the cooling mode according to the indoor environment temperature Tin, the outdoor environment temperature Tout and the indoor environment relative humidity Rh.

[0139] 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).

[0140] Step 810, determine whether the set temperature difference E is greater than a first set temperature (for example, 2°C); if yes, step 812 is executed; if no, step 816 is executed.

[0141] Step 812, control the indoor fan to run at a first wind speed. It is to be noted that in this mode, if E>3°C is detected and lasts for 5 minutes, the indoor fan needs to run at the super-high wind speed after the indoor fan is first run at a second wind speed. The first wind speed can be the super-high wind speed 1250rpm.

[0142] Step 814, determine whether the set temperature difference E is less than or equal to the first set temperature; if yes, step 816 is executed; if no, step 812 is executed.

[0143] Step 816, control the indoor fan to run at a second wind speed. The second wind speed is less than the first wind speed. The second wind speed can be the medium wind speed 1000rpm.

[0144] Step 818, determine whether the following condition is met: -2≤ΔR<2, where the relative humidity of the indoor instantaneous sampling is collected every preset sampling period (for example, 5 minutes), 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, i.e., ΔR=Rhi-Rh(i-1). If yes, step 820 is executed; if no, step 816 is executed.

[0145] Step 820, determine whether the following condition is met: -6≤ΔRh<6, where ΔRh is the difference between the indoor instantaneous sampling relative humidity Rhi of the current sampling period and the set humidity Rhset. If yes, step 818 is executed; if no, step 822 is executed.

[0146] Step 822, determine whether the following condition is met: ΔRh>6. If yes, step 824 is executed; if no, step 826 is executed.

[0147] Step 824, control the indoor fan to lower one gear to a wind speed.

[0148] Step 826, determine whether the following condition is met: ΔRh<6. If yes, step 828 is executed; if no, step 820 is executed.

[0149] Step 828, control the indoor fan to adjust one gear to the high wind speed.

[0150] Step 830, enter the refrigeration mode for the first time.

[0151] Step 832, determine whether the set temperature difference E > 3℃ is met. 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.

[0152] Step 834, call the existing powerful refrigeration mode to run.

[0153] Step 836, run in the normal mode.

[0154] 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.

[0155] The following is to explain the stable comfort stage of the temperature sensation of each user introduced into the indoor environment.

[0156] 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.

[0157] As shown in FIG. 9, the controller 640 is configured to execute the following steps 910-950. Figure 9

[0158] 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 first temperature sensor.

[0159] The target user is any user in the indoor environment.

[0160] ​Optionally, the infrared sensor and the first 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 first 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 first 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.

[0161] 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.

[0162] 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.

[0163] Optionally, the temperature sensing recognition model can be a decision tree model, and the temperature sensing recognition model includes five layers of decision conditions and multiple decision branches. Each leaf node corresponding to each decision branch is a temperature sensing result.

[0164] Specifically, the first face region temperature includes a first nose temperature, a first eye temperature, a first cheek temperature, and a first forehead temperature. The controller can perform five-layer decision on the first nose temperature, the first eye temperature, the first cheek temperature, the first forehead temperature, and the first indoor environment temperature through the temperature sensing recognition model to determine a target decision branch. The leaf node corresponding to the target decision branch is taken as the temperature sensing result corresponding to the target user.

[0165] Specifically, the training of the temperature sensing recognition model can include the following steps 1) to 4).

[0166] 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.

[0167] 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.

[0168] 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 is trained by manual adjustment of the hyperparameters.

[0169] 4) Prediction. The optimal thermal sensation recognition model is tested to predict the accuracy of the thermal sensation recognition model, so as 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.

[0170] 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.

[0171] Optionally, the temperature sensing result further comprises a temperature sensing value. One temperature sensing category can correspond to a plurality of temperature sensing values, the temperature sensing values corresponding to different temperature sensing categories are different, and the number of the temperature sensing values corresponding to each temperature sensing category is not limited herein. For example, the temperature sensing values corresponding to the first temperature sensing can comprise -1 and -2; the temperature sensing values corresponding to the second temperature sensing can comprise 1, 2 and 3; and the temperature sensing values corresponding to the third temperature sensing can comprise 0.

[0172] It should be noted that the temperature sensing value can be used to represent the degree of the corresponding temperature sensing category. For example, in the case that the first temperature sensing indicates that the user feels cold, and the temperature sensing values corresponding to the first temperature sensing can comprise -1 and -2, the temperature sensing value -1 can represent that the target user feels cold, and the temperature sensing value -2 can represent that the target user feels very cold, that is, the user with the temperature sensing value -2 feels colder than the user with the temperature sensing value -1.

[0173] In step 930, a target temperature compensation value is determined according to the temperature sensing result corresponding to each of the at least one user.

[0174] The target temperature compensation value is used to compensate the set temperature, so that the compensated set temperature is more suitable for the expected temperature of the plurality of users, thereby improving the comfort of the plurality of users in the indoor environment.

[0175] Optionally, the greater the difference between the temperature sensing result corresponding to each of the at least one user and the expected temperature sensing result corresponding to each of the at least one user, the greater the absolute value of the target temperature compensation value; the smaller the difference between the temperature sensing result corresponding to each of the at least one user and the expected temperature sensing result corresponding to each of the at least one user, the smaller the absolute value of the target temperature compensation value.

[0176] In step 940, the current set temperature of the air conditioner is temperature compensated based on the target temperature compensation value to obtain a target temperature.

[0177] Optionally, the controller can add the current set temperature of the air conditioner and the target temperature compensation value to obtain the target temperature. For example, assuming that the current set temperature of the air conditioner is 24℃, and the target temperature compensation value is 2, the target temperature is 24+2=26℃; assuming that the current set temperature of the air conditioner is 25℃, and the target temperature compensation value is -3, the target temperature is 25+(-3)=22℃.

[0178] In step 950, the target operating parameter corresponding to the air conditioner is adjusted according to the target temperature.

[0179] The environmental 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 circulating flow and state change of the refrigerant, and the circulating 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 per unit time, the stronger the refrigeration or heating capacity of the air conditioner, the larger the output of the hot or cold air flow, the more significant the temperature change caused by the air conditioner adjusting the temperature, and the more significant the influence on the environmental temperature of the indoor environment. Therefore, the controller can control the environmental temperature of the indoor environment by adjusting the operating frequency of the compressor of the air conditioner, so that the environmental temperature tends to approach the target temperature (the target temperature Ts_comfort of the stable comfort stage), so that the user can feel comfortable.

[0180] In some embodiments, if the air conditioner determines that there are more users with a cold feeling in the indoor environment, the target temperature compensation value can be positive to increase the current set temperature, that is, when the air conditioner controller identifies that the number of users with a cold feeling is greater than the first quantity threshold through the thermal sensation recognition model, it sends a temperature increase signal to increase the temperature based on the current set temperature, for example, if the current set temperature is 20℃, the target temperature after adjustment can be 21℃; or, after determining that the number of users with a neutral feeling is greater than the first quantity threshold, a temperature maintenance signal is sent to keep the current set temperature unchanged; or, after determining that the number of users with a hot feeling is greater than the first quantity threshold, 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℃, the target temperature after adjustment is 19℃. The first quantity threshold 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 to achieve the purpose of individual thermal comfort control of the user and meet the individual comfort adjustment needs of the target user.

[0181] 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 approach the target temperature.

[0182] 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.

[0183] The operating frequency of the compressor can control the amount of refrigerant compressed per unit time, thereby affecting the cooling or heating capacity of the air conditioner and the flow rate of the output airflow. The speed of the fan can affect the flow rate and air volume of the output airflow of the air conditioner. The opening of the electronic expansion valve can control the flow rate and pressure of the refrigerant, thereby affecting the cooling or heating effect of the air conditioner. The angle of the air deflector and the opening of the air valve can adjust the wind direction and wind speed of the output airflow of the air conditioner.

[0184] For example, when the air conditioner is in the heating mode, if the controller determines that the number of users with a cold thermal sensation in the indoor environment is greater than the first quantity threshold through the thermal sensation recognition model, the controller increases the speed of the indoor fan of the air conditioner; if the controller determines that the number of users with a hot thermal sensation in the indoor environment is greater than the first quantity threshold through the thermal sensation recognition model, the controller decreases the speed of the indoor fan of the air conditioner.

[0185] For example, when the air conditioner is in the cooling mode, if the controller determines that the number of users with a cold thermal sensation in the indoor environment is greater than the first quantity threshold through the thermal sensation recognition model, the controller decreases the speed of the indoor fan of the air conditioner; if the controller determines that the number of users with a hot thermal sensation in the indoor environment is greater than the first quantity threshold through the thermal sensation recognition model, the controller increases the speed of the indoor fan of the air conditioner.

[0186] 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 target temperature, thereby bringing a comfortable environmental temperature to at least one user in the indoor environment.

[0187] In the embodiments of the present application, the controller obtains the face region temperature of the user and the indoor environment temperature, accurately identifies and predicts the thermal sensation of each user in the indoor environment through the thermal sensation recognition model, and based on the thermal sensation of at least one user, accurately determines the temperature compensation value, so that the set temperature after compensation is more consistent with the thermal comfort temperature of at least one user in the same indoor environment, and adjusts the operating parameter of the air conditioner according to the set temperature after compensation, thereby realizing the temperature comfort demand of at least one user in the same air conditioner scene.

[0188] In some embodiments, as shown in FIG. 6, the controller 640 is further configured to perform steps 1002-1010. Figure 10

[0189] Step 1002: Obtain the first face region temperature corresponding to the target user collected by the infrared sensor, and obtain the first indoor environment temperature collected by the first temperature sensor.

[0190] ​Step 1004, inputting the first facial region temperature and the first indoor environment temperature into the thermosensation recognition model, and determining the thermosensation result corresponding to the target user according to the first facial region temperature and the first indoor environment temperature through the thermosensation recognition model.

[0191] The related descriptions of steps 1002-1004 can refer to the effect descriptions of steps 910-920 in the above embodiments, which will not be repeated again.

[0192] Step 1006, determining the target temperature compensation value according to the target thermosensation numerical range to which the thermosensation value corresponding to each of the at least one user belongs.

[0193] In some embodiments, the thermosensation value can be used to represent the degree of the corresponding thermosensation category, and the controller can determine the target temperature compensation value according to the target thermosensation numerical range to which the thermosensation value corresponding to the target user belongs based on the preset corresponding relationship (as shown in Table 5) when the indoor environment only has the target user.

[0194] As shown in Table 5, the preset corresponding relationship is used to represent the preset corresponding relationship between the thermosensation numerical range and the temperature compensation value. For example, when the thermosensation value is -3, the target thermosensation numerical range to which it belongs is [-3, -2), and the corresponding target temperature compensation value is +2.

[0195] Table 5: Preset corresponding relationship

[0196] Temperature sensation value range Temperature compensation value (°C) [-3,-2) +2 [-2,-1) +1 [-1,1] 0 (1,2] -1 (2,3] -2

[0197] In some embodiments, the controller can also determine the target temperature compensation value according to the target thermosensation numerical range based on the preset corresponding relationship (as shown in Table 5) when the indoor environment has multiple users and the target thermosensation numerical ranges to which the thermosensation values corresponding to the multiple users respectively belong are the same.

[0198] For example, the controller can count the target thermosensation numerical ranges to which the thermosensation values corresponding to each of the at least one user respectively belong, determine the target thermosensation numerical range containing the largest number of users, and then determine the target temperature compensation value corresponding to the target thermosensation numerical range based on the preset corresponding relationship (as shown in Table 5).

[0199] Step 1008, performing temperature compensation on the current set temperature of the air conditioner based on the target temperature compensation value to obtain a target temperature.

[0200] Step 1010, adjusting the target operating parameter of the air conditioner according to the target temperature.

[0201] The related descriptions of steps 1008-1010 can refer to the effect descriptions of steps 940-950 in the above embodiments, which will not be repeated again.

[0202] In the embodiments of the present application, the controller can more accurately reflect different body feeling states of the user by refining the temperature sensing result into a temperature sensing value and determining the target temperature compensation value according to the target temperature sensing numerical range to which the temperature sensing value belongs, thereby avoiding the use of a fixed temperature compensation that cannot fully consider the differences between individual users, and improving the overall comfort of the user using the air conditioner.

[0203] In some embodiments, as shown in FIG. 6, the controller 640 is further configured to perform steps 1102-1110. Figure 11

[0204] In step 1102, the first facial region temperature corresponding to the target user collected by the infrared sensor and the first indoor environment temperature collected by the first temperature sensor are obtained.

[0205] In step 1104, the first facial region temperature and the first indoor environment temperature are input into the temperature sensing recognition model, and the temperature sensing result corresponding to the target user is determined by the temperature sensing recognition model according to the first facial region temperature and the first indoor environment temperature.

[0206] The related descriptions of steps 1102-1104 can refer to the effect descriptions of steps 910-920 in the above embodiments, which will not be repeated again.

[0207] In step 1106, the target temperature compensation value is determined according to the temperature sensing categories corresponding to the at least one user and the working mode of the air conditioner.

[0208] In some embodiments, the controller can determine that the target temperature compensation value is a first value greater than 0 if the temperature sensing categories corresponding to the at least one user are all first temperature sensing in the heating mode of the air conditioner.

[0209] In some embodiments, the controller can determine that the target temperature compensation value is a second value less than 0 if the temperature sensing categories corresponding to the at least one user are all second temperature sensing in the heating mode of the air conditioner; and the absolute value of the first value is greater than the absolute value of the second value. In the heating mode, the absolute value of the first value is greater than the absolute value of the second value, so that the air conditioner compensates more strongly for the temperature when the user feels cold, thereby increasing the temperature more quickly.

[0210] In some embodiments, the controller can determine that the target temperature compensation value is 0 if the temperature sensing categories corresponding to at least two users are different or the temperature sensing categories corresponding to the at least one user are all third temperature sensing in the heating mode of the air conditioner.

[0211] ​In some embodiments, the controller can determine the target temperature compensation value as a third value greater than 0 if the at least one user respectively corresponds to the first temperature sensation in the cooling mode of the air conditioner.

[0212] In some embodiments, the controller can determine the target temperature compensation value as a fourth value less than 0 if the at least one user respectively corresponds to the second temperature sensation in the cooling mode of the air conditioner; and the absolute value of the third value is less than the absolute value of the fourth value. The absolute value of the fourth value is greater than the absolute value of the third value in the cooling mode, so that the air conditioner can quickly reduce the temperature when the user feels hot.

[0213] In some embodiments, the controller can determine the target temperature compensation value as 0 if the at least one user respectively corresponds to the third temperature sensation or the at least two users respectively correspond to different temperature sensations in the cooling mode of the air conditioner.

[0214] In some embodiments, the controller can determine the temperature sensation level of each user in the corresponding temperature sensation category according to the target temperature sensation value range to which the at least one user respectively corresponds; and determine the target temperature compensation value according to the at least one user respectively corresponds to the corresponding temperature sensation category, the temperature sensation level in the corresponding temperature sensation category, and the working mode of the air conditioner.

[0215] Optionally, the number of temperature sensation levels corresponding to each temperature sensation category can be different, for example, the third temperature sensation corresponds to one temperature sensation level, and the second temperature sensation can correspond to two temperature sensation levels.

[0216] For example, assuming that the third temperature sensation corresponds to one temperature sensation level "comfortable", the second temperature sensation corresponds to two temperature sensation levels "very hot" and "relatively hot", and the first temperature sensation corresponds to two temperature sensation levels "very cold" and "relatively cold". After the controller determines the temperature sensation level of each user in the corresponding temperature sensation category according to the target temperature sensation value range to which the at least one user respectively corresponds, the controller can determine the target temperature compensation value through the corresponding relationship between different temperature sensation levels and temperature compensation values in the indoor environment in Table 6.

[0217] Table 6: Corresponding relationship between different temperature sensation levels and temperature compensation values in the indoor environment

[0218] Concurrent different temperature sensation levels Temperature compensation value Combinations including "comfortable" 0 Very hot + less cold 0 Very hot + very cold 0 Less hot + less cold 0 Less hot + very cold 0 Very hot + less hot -1 Very cold + less cold +2 Less hot + less cold + very cold 0 Very hot + less cold + very cold 0 Very hot + less hot + very cold 0 Very hot + less hot + less cold 0 Very hot + less hot + less cold + very cold 0

[0219] Step 1108: Compensate the current set temperature of the air conditioner based on the target temperature compensation value to obtain a target temperature.

[0220] Step 1110: Adjust the target operating parameters of the air conditioner according to the target temperature.

[0221] The descriptions of steps 1108-1110 can refer to the descriptions of steps 940-950 in the above embodiments, and will not be repeated again.

[0222] In the embodiments of the present application, the body temperature sensation of the user is divided into three clear temperature sensation categories, which can more accurately reflect the subjective sensation of the user to the temperature, so that the air conditioner can quickly and intuitively understand the temperature demand of the user; by combining the temperature sensation category and the working mode, the air conditioner can determine the appropriate target temperature compensation value, avoid the overcompensation or undercompensation of the current set temperature, and thus improve the rationality and effectiveness of temperature adjustment.

[0223] In some embodiments, Figure 12A is a structural block diagram of the air conditioner in an embodiment. As Figure 12A shown, the air conditioner 100 further includes a second temperature sensor 650.

[0224] The second temperature sensor 650 is configured to collect an outdoor environment temperature corresponding to an outdoor environment in which the outdoor heat exchanger 612 is located.

[0225] In some embodiments, as Figure 12B shown, the controller 640 is configured to perform the following steps 1202-1214.

[0226] Step 1202, acquiring a first outdoor environment temperature collected by the second temperature sensor, and acquiring a clothing thermal resistance and a human metabolic rate corresponding to each of the at least one user.

[0227] In some embodiments, the controller can be communicatively connected with terminal devices corresponding to the at least one user, and acquire the clothing thermal resistance and the human metabolic rate corresponding to each of the at least one user sent by the terminal devices.

[0228] Step 1204, determining a first temperature compensation value according to the first outdoor environment temperature, the clothing thermal resistance and the human metabolic rate corresponding to each of the at least one user.

[0229] Optionally, the controller can further acquire an outdoor environment temperature Tout, a clothing resistance clo of the user, and a human metabolic rate M of the user, and determine a second temperature compensation value corresponding to each of the users in the indoor environment through the above table 3; and take an average of the second temperature compensation values corresponding to each of the users as the first temperature compensation value.

[0230] Step 1206, acquiring a first facial region temperature corresponding to a target user collected by the infrared sensor, and acquiring a first indoor environment temperature collected by the first temperature sensor.

[0231] Step 1208: 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 based on the first facial region temperature and the first indoor environment temperature through the temperature sensing recognition model.

[0232] Step 1210: Determine a target temperature compensation value based on the temperature sensing result corresponding to at least one user.

[0233] For the description of steps 1206 to 1210 , reference may be made to the description of the effects of steps 910 to 930 in the above embodiment, and will not be repeated here.

[0234] Step 1212: Based on the target temperature compensation value and the first temperature compensation value, temperature compensation is performed on the current set temperature of the air conditioner to obtain the target temperature.

[0235] Step 1214: Adjust the target operating parameters corresponding to the air conditioner according to the target temperature.

[0236] For the description of step 1214 , please refer to the description of the effect of step 950 in the above embodiment, which will not be repeated here.

[0237] In an embodiment of the present application, the controller determines a first temperature compensation value by comprehensively considering the outdoor ambient temperature, the thermal resistance of the user's clothing and the human metabolic rate, and then uses it together with the target temperature compensation value determined by the temperature sensing results of at least one user in the indoor environment to compensate for the current set temperature of the air conditioner. This allows the controller to more accurately control the indoor ambient temperature by controlling the operating parameters, avoiding excessive cooling or heating, reducing energy waste, and achieving the temperature comfort needs of at least one user in the same air conditioner scenario.

[0238] In some embodiments, as Figure 13 As shown, the controller 640 is configured to execute the following steps 1302 to 1308.

[0239] Step 1302 : obtaining a first facial 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 first temperature sensor in the current detection period.

[0240] Step 1304 : Input the first facial region temperature and the first indoor environment temperature into a temperature sensing recognition model. The temperature sensing recognition model determines a first temperature sensing result corresponding to the target user and the current detection period based on the first facial region temperature and the first indoor environment temperature.

[0241] For the description of determining the first temperature sensing result corresponding to the target user and the current detection period in steps 1302 to 1304 , reference may be made to the description of steps 910 to 920 in the above embodiment, which will not be repeated here.

[0242] At step 1306, the first thermal sensation result corresponding to the target user in each detection period is determined according to the target user.

[0243] In some embodiments, the controller of the air conditioner can store the first thermal sensation result corresponding to the target user in each detection period until the number of stored detection periods reaches a preset number, and the controller can statistically analyze the first thermal sensation result corresponding to the target user in at least two detection periods to determine the thermal sensation result of the target user, which can improve the accuracy of identifying the thermal sensation of the target user.

[0244] Optionally, the statistical method that can be used by the controller can include, but is not limited to, the mean, mode, median, etc. of the plurality of first thermal sensation results.

[0245] For example, the air conditioner collects the face area temperature of the target user and the corresponding indoor environment temperature, and inputs the face area temperature and the corresponding indoor environment temperature into the thermal sensation recognition model to obtain the corresponding first thermal sensation result. Assuming that the preset number is 5, the first thermal sensation results output after 5 times of judgment by the thermal sensation recognition model are: hot, cold, neutral, hot, and hot, respectively, wherein the number of hot is the largest, and therefore, the thermal sensation result of the target user is hot.

[0246] At step 1308, the target operation parameter of the air conditioner is determined according to the working mode of the air conditioner and the thermal sensation result corresponding to at least one user.

[0247] The related description of step 1308 can be referred to the related description of step 940 in the above embodiments, which will not be repeated here.

[0248] In the embodiments of the present application, the air conditioner can obtain the first thermal sensation result of the target user in a plurality of detection periods, and fuse the first thermal sensation results in the plurality of detection periods, which can reduce the random error of single temperature collection and the randomness of the result of single thermal sensation recognition model, and ensure the accuracy and stability of the final thermal sensation result of the target user.

[0249] 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 the air supply range covered by the air supply assembly is divided into a plurality of air supply areas; and the target operation parameter includes the air supply direction of the air supply assembly.

[0250] Optionally, as shown in Figure 14 from the perspective of top view, the air supply range covered by the air supply assembly is a fan-shaped area with a radius of 5 meters and an angular radian of 120°, and according to the area of the fan-shaped area, the air supply range can be equally divided into 5 air supply areas.

[0251] In some embodiments, as Figure 15 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 1502 to 1510.

[0252] Step 1502: Obtain location information corresponding to at least one user.

[0253] In some embodiments, the air conditioner may further include a positioning module configured to determine a user position corresponding to at least one user in the indoor environment corresponding to the air conditioner.

[0254] Optionally, the positioning module may include a short-range communication module. The short-range communication module is configured to establish short-range communication connections with multiple terminal devices in the indoor environment corresponding to the air conditioner, receive short-range communication signals sent by each terminal device, and determine the distance between the user corresponding to each terminal device and the air conditioner based on the short-range communication signals sent by each terminal device, so as to obtain location information corresponding to at least one user.

[0255] Near-field communication (NFC) refers to data transmission between two communicating parties over a relatively short distance (usually a few to tens of meters). NFC connection methods include, but are not limited to, Bluetooth, Wi-Fi Direct, UWB (UltraWide-Band), and NFC (Near Field Communication).

[0256] In indoor environments, each user has a corresponding terminal device, which can be a mobile phone, computer, wearable device, etc. Since various terminal devices currently have short-range communication functions, users no longer need to carry additional positioning devices specifically for communicating with the positioning module. They can simply use existing terminal devices to achieve positioning communication with the air conditioner. The connection process of short-range communication is generally simple and can be established quickly, thus ensuring the convenience and low cost of user positioning while ensuring accurate positioning.

[0257] Optionally, the short-range communication signal sent by the terminal device may include but is not limited to device identification information, signal strength information, timestamp information, etc.

[0258] The device identification information is used to uniquely identify the terminal device and may include the terminal device's MAC address, Bluetooth address, corresponding user, etc., so that the air conditioner's positioning module can distinguish different users and terminal devices through the device identification information.

[0259] The signal strength information can include a received signal strength indicator (RSSI), and the positioning module can estimate the distance between the terminal device and the air conditioner according to the signal strength information and in combination with a signal propagation model.

[0260] 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.

[0261] In some embodiments, the controller can also obtain position information corresponding to at least one user according to historical data, and the historical data can include historical user positions of different users in different time periods.

[0262] 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 the recorded user positions.

[0263] At step 1504, a blowing area corresponding to each user is determined according to the position information corresponding to each user.

[0264] 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.

[0265] At step 1506, a target thermal sensation corresponding to each blowing area is determined according to the thermal sensation results corresponding to each user included in each blowing area.

[0266] In some embodiments, the controller can take the thermal sensation result appearing most frequently in the multiple thermal sensation results included in each blowing area as the target thermal sensation corresponding to each blowing area.

[0267] At step 1508, a target blowing area is determined from the multiple 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.

[0268] Alternatively, the controller can determine a target blowing area from the multiple 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 “air deflector cooling priority, air avoiding people, blowing to hot feeling area, air deflector heating priority, air blowing to people, blowing to cold feeling area”.

[0269] Specifically, when the air conditioner is in cooling mode, if a certain air supply area has the largest number of users and the target temperature result corresponding to this air supply area is relatively hot, then this air supply area can be determined as the target air supply area; if the target temperature result of this air supply area is relatively cold, then the air supply component should avoid this air supply area as much as possible when delivering airflow. If there are multiple air supply areas with target temperature results corresponding to them that are all relatively hot, then these air supply areas can all be designated as target air supply areas, and the air supply component can be controlled to deliver airflow to the multiple target air supply areas in a sweeping manner.

[0270] Step 1510: Adjust the air supply direction of the air supply assembly according to the target air supply area so that the air supply assembly delivers airflow toward the target air supply area.

[0271] In an embodiment of the present application, by comprehensively considering the target temperature sensation, number of users and working mode of the air conditioner corresponding to each air supply area, a target air supply area is selected from multiple air supply areas, and the air supply component is made to transport airflow toward the target air supply area, thereby meeting the temperature sensation requirements of the users in the target air supply area, so that the air conditioner can achieve precise air supply and avoid ineffective energy consumption caused by global air supply.

[0272] like Figure 16 As shown, in one embodiment, a parameter control method for an air conditioner is provided, which can be applied to the above-mentioned air conditioner 100. The method may include the following steps 1610 to 1650.

[0273] Step 1610: Acquire a first facial area temperature corresponding to a target user collected by an infrared sensor, and acquire a first indoor environment temperature collected by a first temperature sensor; the target user is any user in the indoor environment where the air conditioner is located.

[0274] Step 1620: 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 based on the first facial region temperature and the first indoor environment temperature through the temperature sensing recognition model.

[0275] Step 1630: Determine a target temperature compensation value based on the temperature sensing result corresponding to at least one user.

[0276] Step 1640: Based on the target temperature compensation value, the current set temperature of the air conditioner is temperature compensated to obtain the target temperature.

[0277] Step 1650: Adjust the target operating parameters corresponding to the air conditioner according to the target temperature.

[0278] Optionally, the temperature sensing result includes a temperature sensing value.

[0279] In some embodiments, step 1630 can include determining the target temperature compensation value according to a target temperature-sensation value range to which the temperature-sensation value corresponding to each of the at least one user belongs.

[0280] In some embodiments, step 1630 can include, in a case where the indoor environment only has the target user, determining the target temperature compensation value according to a target temperature-sensation value range to which the temperature-sensation value corresponding to the target user belongs based on a preset correspondence relationship, the preset correspondence relationship being used to represent a preset correspondence relationship between temperature-sensation value ranges and temperature compensation values; or, in a case where the indoor environment has multiple users and target temperature-sensation value ranges to which temperature-sensation values corresponding to the multiple users respectively belong are the same, determining the target temperature compensation value according to the target temperature-sensation value range based on the preset correspondence relationship.

[0281] Optionally, the temperature-sensation result includes a temperature-sensation category, the temperature-sensation category including a first temperature-sensation, a second temperature-sensation or a third temperature-sensation, the first temperature-sensation indicating that the temperature sensation of the user is cold, the second temperature-sensation indicating that the temperature sensation of the user is hot, and the third temperature-sensation indicating that the temperature sensation of the user is neutral.

[0282] In some embodiments, step 1630 can include determining the target temperature compensation value according to a temperature-sensation category corresponding to each of the at least one user and the operating mode of the air conditioner.

[0283] In some embodiments, determining the target temperature compensation value according to the temperature-sensation category corresponding to each of the at least one user and the operating mode of the air conditioner can include, in a case where the air conditioner is in a heating mode, determining the target temperature compensation value to be a first value if the temperature-sensation category corresponding to each of the at least one user is the first temperature-sensation, the first value being greater than 0; and / or, in a case where the air conditioner is in the heating mode, determining the target temperature compensation value to be a second value if the temperature-sensation category corresponding to each of the at least one user is the second temperature-sensation, the second value being less than 0; the absolute value of the first value being greater than the absolute value of the second value; and / or, in a case where the air conditioner is in the heating mode, determining the target temperature compensation value to be 0 if the temperature-sensation categories corresponding to at least two users are different or the temperature-sensation category corresponding to each of the at least one user is the third temperature-sensation.

[0284] In some embodiments, the step of determining the target temperature compensation value according to the temperature sensing category corresponding to each of the at least one user and the operation mode of the air conditioner can comprise: in a case where the air conditioner is in the cooling mode, if the temperature sensing category corresponding to each of the at least one user is the first temperature sensing, determining the target temperature compensation value as a third value, the third value being greater than 0; and / or, in a case where the air conditioner is in the cooling mode, if the temperature sensing category corresponding to each of the at least one user is the second temperature sensing, determining the target temperature compensation value as a fourth value, the fourth value being less than 0; the absolute value of the third value being less than the absolute value of the fourth value; and / or, in a case where the air conditioner is in the cooling mode, if the temperature sensing category corresponding to each of the at least one user is different or the temperature sensing category corresponding to each of the at least one user is the third temperature sensing, determining the target temperature compensation value as 0.

[0285] In some embodiments, the step of determining the target temperature compensation value according to the temperature sensing category corresponding to each of the at least one user and the operation mode of the air conditioner can comprise: determining the temperature sensing level of each user in the corresponding temperature sensing category according to the target temperature sensing value range to which the temperature sensing value corresponding to each of the at least one user belongs; and determining the target temperature compensation value according to the temperature sensing category corresponding to each of the at least one user, the temperature sensing level in the corresponding temperature sensing category, and the operation mode of the air conditioner.

[0286] Optionally, the parameter control method of the air conditioner can comprise: acquiring a first outdoor environment temperature collected by a second temperature sensor, and acquiring the clothing thermal resistance and the human metabolic rate corresponding to each of the at least one user; and determining a first temperature compensation value according to the first outdoor environment temperature, the clothing thermal resistance and the human metabolic rate corresponding to each of the at least one user.

[0287] The step 1640 can comprise: performing temperature compensation on the current set temperature of the air conditioner based on the target temperature compensation value and the first temperature compensation value to obtain a target temperature.

[0288] In some embodiments, the step 1610 further comprises: acquiring a first facial area temperature of the target user collected by the infrared sensor in the current detection period, and acquiring a first indoor environment temperature collected by the first temperature sensor in the current detection period.

[0289] Optionally, the step 1620 further comprises: inputting the first facial area temperature and the first indoor environment temperature into the temperature sensing identification model, determining the first temperature sensing result of the target user corresponding to the current detection period according to the first facial area temperature and the first indoor environment temperature through the temperature sensing identification model, and determining the temperature sensing result corresponding to the target user according to the first temperature sensing result of the target user corresponding to each of the at least two detection periods.

[0290] In some specific embodiments, as Figure 17As 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.

[0291] 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.

[0292] The air conditioner determines whether Tset+3 < target temperature < Tset-3. If not, the target temperature is not automatically determined by the air conditioner based on the temperature sensing model, but is a temperature customized by the user via the remote control. In this case, the target temperature is set to the maximum value of Tset±3. If so, the target temperature is set to the target temperature after the modification.

[0293] The air conditioner also determines the relative humidity Rhset according to the target temperature through the temperature and humidity comparison table (Table 1), so that the air conditioner determines the target operating parameters of the air conditioner (for example, adjust the speed of the indoor fan, such as Figure 8 shown).

[0294] In an embodiment of the present application, the air conditioner obtains the user's facial area temperature and the indoor environment temperature, accurately identifies and predicts the temperature sensing results of each user in the indoor environment through a temperature sensing recognition model, and based on the temperature sensing results corresponding to at least one user, can accurately determine the temperature compensation value, so that the compensated set temperature is more in line with the perceived comfort temperature of at least one user in the same indoor environment, and adjusts the operating parameters of the air conditioner according to the compensated set temperature, thereby meeting the temperature comfort needs of at least one user in the same air conditioner scenario.

[0295] like Figure 18 As shown, in one embodiment, a parameter control device 1800 for an air conditioner is provided, which can be applied to the above-mentioned air conditioner. The parameter control device 1800 for an air conditioner can include a temperature acquisition module 1810, a temperature sensor recognition module 1820, a temperature compensation module 1830, and a parameter adjustment module 1840.

[0296] The temperature acquisition module 1810 is configured to acquire a first facial region temperature corresponding to a target user collected by an infrared sensor and acquire a first indoor environment temperature collected by a first temperature sensor. The target user is any user in an indoor environment where the air conditioner is located.

[0297] 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.

[0298] The temperature compensation module 1830 is configured to determine a target temperature compensation value according to the temperature sensing result corresponding to at least one user, and perform temperature compensation on a current set temperature of the air conditioner based on the target temperature compensation value to obtain a target temperature.

[0299] The parameter adjustment module 1840 is configured to adjust a target operating parameter corresponding to the air conditioner according to the target temperature.

[0300] In the embodiments of the present application, the air conditioner acquires the facial region temperature of the user and the indoor environment temperature, accurately identifies and predicts the temperature sensing result of each user in the indoor environment through the temperature sensing recognition model, and can accurately determine the temperature compensation value based on the temperature sensing result corresponding to at least one user, so that the set temperature after compensation is more consistent with the thermal comfort temperature of at least one user in the same indoor environment, and the operating parameter of the air conditioner is adjusted according to the set temperature after compensation, thereby realizing the temperature comfort demand of at least one user in the same air conditioner scene.

[0301] 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.

[0302] The embodiments of the present application disclose a computer program product comprising a computer program, and the computer program can be executed by a processor to implement the method described in the above embodiments.

[0303] It should be understood that the "one embodiment" or "an embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also know that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present application.

[0304] In various embodiments of the present application, it should be understood that the size of the sequence number of each process described above does not mean the inevitable sequence of execution order, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0305] The technical features of the above embodiments can be combined in any way. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present disclosure.

[0306] The above describes in detail the air conditioner and the parameter control method of the air conditioner disclosed in the embodiments of the present application. The principles and implementation manners of the present application are described by applying specific examples. The above embodiment description is only used to help understand the method and core idea of the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and application range will be changed. In summary, the content of the present description should not be understood as a limitation of the present application.

Claims

1. An air conditioner characterized by comprising: The air conditioner comprises: a refrigerant circulation circuit, comprising a compressor, an outdoor heat exchanger, and an indoor heat exchanger connected in sequence, wherein the refrigerant circulation circuit is configured to circulate the refrigerant; a first temperature sensor configured to collect an indoor ambient temperature corresponding to the indoor environment where the air conditioner is located; an infrared sensor configured to collect a temperature of a facial area corresponding to at least one user in the indoor environment; The controller is configured as: Acquiring a first facial area temperature corresponding to a target user collected by the infrared sensor, and acquiring a first indoor environment temperature collected by the first temperature sensor; the target user is any user in the indoor environment; inputting the first facial region temperature and the first indoor ambient temperature into a temperature sensing recognition model, and determining a temperature sensing result corresponding to the target user using the temperature sensing recognition model based on the first facial region temperature and the first indoor ambient temperature; determining a target temperature compensation value according to the temperature sensing result corresponding to the at least one user; Based on the target temperature compensation value, temperature compensation is performed on the current set temperature of the air conditioner to obtain a target temperature; According to the target temperature, the target operating parameters corresponding to the air conditioner are adjusted.

2. The air conditioner of claim 1, wherein The temperature sensing result includes a temperature sensing value, and determining a target temperature compensation value according to the temperature sensing result corresponding to the at least one user includes: A target temperature compensation value is determined according to a target temperature sensitivity value range to which the temperature sensitivity value corresponding to the at least one user belongs.

3. The air conditioner of claim 2, wherein The determining of the target temperature compensation value according to the target temperature sensitivity value range to which the temperature sensitivity value corresponding to the at least one user belongs includes: In the case where only the target user exists in the indoor environment, a target temperature compensation value is determined based on a preset correspondence relationship and according to a target temperature sensitivity value range to which the temperature sensitivity value corresponding to the target user belongs, wherein the preset correspondence relationship is used to characterize a correspondence between a preset temperature sensitivity value range and a temperature compensation value; or When there are multiple users in the indoor environment and the target temperature sensitivity value ranges to which the temperature sensitivity values ​​corresponding to the multiple users belong are the same, the target temperature compensation value is determined according to the target temperature sensitivity value range based on the preset corresponding relationship.

4. The air conditioner of claim 1, wherein The temperature sensation result includes a temperature sensation category, where the temperature sensation category includes a first temperature sensation, a second temperature sensation, or a third temperature sensation, wherein the first temperature sensation indicates that the user's temperature sensation is cool, the second temperature sensation indicates that the user's temperature sensation is hot, and the third temperature sensation indicates that the user's temperature sensation is neutral; The determining of the target temperature compensation value according to the temperature sensing result corresponding to the at least one user includes: A target temperature compensation value is determined according to the temperature sensing category corresponding to the at least one user and the operating mode of the air conditioner.

5. The air conditioner of claim 4, wherein The determining of the target temperature compensation value according to the temperature sensing category corresponding to the at least one user and the operating mode of the air conditioner includes: When the air conditioner is in heating mode, if the temperature sensing categories corresponding to the at least one user are both the first temperature sensing categories, determining a target temperature compensation value as a first value, the first value being greater than 0; and / or In a case where the air conditioner is in the heating mode, if the temperature sensing categories corresponding to the at least one user are all the second temperature sensing category, a target temperature compensation value is determined as a second value, the second value is less than 0; an absolute value of the first value is greater than an absolute value of the second value; and / or, In a case where the air conditioner is in the heating mode, if the temperature sensing categories corresponding to the at least one user are different or the temperature sensing categories corresponding to the at least one user are all the third temperature sensing category, a target temperature compensation value is determined as 0.

6. The air conditioner of claim 4, wherein The target temperature compensation value is determined according to the temperature sensing categories corresponding to the at least one user and the working mode of the air conditioner, including: In a case where the air conditioner is in the cooling mode, if the temperature sensing categories corresponding to the at least one user are all the first temperature sensing category, a target temperature compensation value is determined as a third value, the third value is greater than 0; and / or, In a case where the air conditioner is in the cooling mode, if the temperature sensing categories corresponding to the at least one user are all the second temperature sensing category, a target temperature compensation value is determined as a fourth value, the fourth value is less than 0; an absolute value of the third value is less than an absolute value of the fourth value; and / or, In a case where the air conditioner is in the cooling mode, if the temperature sensing categories corresponding to the at least one user are different or the temperature sensing categories corresponding to the at least one user are all the third temperature sensing category, a target temperature compensation value is determined as 0.

7. The air conditioner according to any one of claims 4 to 6, characterized by The temperature sensing result further includes a temperature sensing value; The target temperature compensation value is determined according to the temperature sensing categories corresponding to the at least one user and the working mode of the air conditioner, including: A temperature sensing level of each of the users in the corresponding temperature sensing category is determined according to a target temperature sensing numerical range to which the temperature sensing value corresponding to each of the users belongs; The target temperature compensation value is determined according to the temperature sensing categories corresponding to the at least one user, the temperature sensing level in the corresponding temperature sensing category, and the working mode of the air conditioner.

8. The air conditioner of claim 1, wherein The air conditioner further includes a second temperature sensor; The second temperature sensor is configured to collect an outdoor environment temperature corresponding to an outdoor environment in which the outdoor heat exchanger is located; The controller is further configured to: acquire the first outdoor environment temperature collected by the second temperature sensor, and acquire the clothing thermal resistance and the human metabolic rate corresponding to the at least one user respectively; determine a first temperature compensation value according to the first outdoor environment temperature, the clothing thermal resistance and the human metabolic rate corresponding to the at least one user respectively; The target temperature is obtained by performing temperature compensation on the current set temperature of the air conditioner based on the target temperature compensation value, including: The target temperature is obtained by performing temperature compensation on the current set temperature of the air conditioner based on the target temperature compensation value and the first temperature compensation value.

9. The air conditioner of claim 1, wherein The first facial region temperature corresponding to the target user collected by the infrared sensor and the first indoor environment temperature collected by the first temperature sensor are acquired, including: acquire a first facial region temperature corresponding to a target user collected by the infrared sensor in a current detection period, and acquire a first indoor environment temperature collected by the first temperature sensor in the current detection period; the first facial region temperature and the first indoor environment temperature into a thermal sensation recognition model, and determining 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, comprising: the first facial region temperature and the first indoor environment temperature into a thermal sensation recognition model, and determining a first thermal sensation result corresponding to the target user and the current detection period through the thermal sensation recognition model according to the first facial region temperature and the first indoor environment temperature; determining a thermal sensation result corresponding to the target user according to first thermal sensation results corresponding to the target user and at least two detection periods respectively.

10. A method of controlling parameters of an air conditioner, characterized by, applied to an air conditioner, the method comprising: acquiring a first facial region temperature corresponding to a target user collected by the infrared sensor, and acquiring a first indoor environment temperature collected by the first temperature sensor; the target user is any user in the indoor environment where the air conditioner is located; the first facial region temperature and the first indoor environment temperature into a thermal sensation recognition model, and determining 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; determining a target temperature compensation value according to the thermal sensation results corresponding to at least one user in the indoor environment respectively; based on the target temperature compensation value, temperature compensation is performed on the current set temperature of the air conditioner to obtain a target temperature; adjusting the target operating parameters corresponding to the air conditioner according to the target temperature.

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