Air conditioner and control method and device thereof, storage medium and computer program product

Abstract

The invention provides an air conditioner, a control method and device of the air conditioner, a storage medium and a computer program product. The method comprises the steps that current environment parameters of the environment and the human body metabolism rate and the human body clothes thermal resistance value in the environment are collected; determining a current human body thermal comfort index of the environment according to the collected environmental parameters, the human body metabolism rate and the human body clothing thermal resistance value; and according to the current use scene and the determined current human body thermal comfort index of the environment, the air conditioner is controlled to adjust environment parameters of the environment. According to the scheme provided by the invention, the environment parameters can be dynamically adjusted according to different use scenes, and personalized comfortable experience is provided.

Description

Technical Field

[0001] The present invention relates to the field of control, and particularly to an air conditioner and its control method, device, storage medium, and computer program product. Background Art

[0002] With the rapid development of social economy and the remarkable improvement of people's living standards, the comfort and health of the indoor environment have become the core needs of users. The air conditioning systems in related technologies mainly focus on temperature regulation as the core function and are difficult to meet the diverse needs of modern users for the indoor environment. However, with the rapid development of sensor technology, intelligent control technology, air purification technology, and Internet of Things technology, the air conditioning system must gradually upgrade from a single temperature regulation device to a comprehensive indoor environment manager, which can actively and intelligently adjust parameters such as temperature, humidity, air quality, and air flow speed to provide users with a more comfortable, healthier, and more intelligent indoor environment. Therefore, the air conditioning system needs to develop in the direction of intelligence, comprehensiveness, and personalization.

[0003] China's first thermal and humid environment evaluation standard, "Evaluation Standard for Indoor Thermal and Humid Environment of Civil Buildings" (GBT 50785-2012), was officially implemented in October 2012. The standard divides the indoor thermal and humid environment of civil buildings in China into three grades: Grade I, Grade II, and Grade III, and gives clear evaluation indicators and the PMV (Predicted Mean Vote) value range corresponding to each grade. As an index for evaluating human thermal comfort, PMV comprehensively considers multiple factors such as air temperature, relative humidity, wind speed, radiant temperature, and activity level. However, the adjustment methods in related technologies have not carried out multi-parameter intelligent regulation based on the indoor comfort level, but rather adopt the method of regulating a single parameter in isolation, which makes the ability of the air conditioning adjustment methods in related technologies to create a comfortable indoor thermal and humid environment difficult to meet the actual needs of people's growing healthy and comfortable environment in the space. This current situation highlights the necessity for the air conditioning system to develop in the direction of intelligence, comprehensiveness, and personalization to achieve all-round and precise control of the indoor environment. Summary of the Invention

[0004] The main objective of the present invention is to overcome the defects of the above-mentioned related technologies, and provide an air conditioner and its control method, device, storage medium, and computer program product to solve the problem that the methods for adjusting the indoor environment in related technologies have not carried out multi-parameter intelligent regulation based on the indoor comfort level, but rather adopt the method of regulating a single parameter in isolation.

[0005] On the one hand, the present invention provides a control method for an air conditioner, including: collecting current environmental parameters of the environment where it is located, as well as the human body metabolic rate and the human body clothing thermal resistance value in the environment where it is located; determining the current human body thermal comfort index of the environment where it is located according to the collected environmental parameters, the human body metabolic rate, and the human body clothing thermal resistance value; controlling the air conditioner to adjust the environmental parameters of the environment where it is located according to the current usage scenario and the determined current human body thermal comfort index of the environment where it is located, including: determining the current human body thermal comfort range of the environment where it is located according to the current usage scenario of the air conditioner; controlling the air conditioner to adjust the environmental parameters of the environment where it is located according to the determined current human body thermal comfort index of the environment where it is located and the current human body thermal comfort range of the environment where it is located.

[0006] Optionally, collecting the human body metabolic rate in the environment where it is located includes: identifying the human body activity category through a camera; determining the human body metabolic rate according to the human body activity category; wherein, different human body activity categories correspond to different human body metabolic rates.

[0007] Optionally, collecting the human body clothing thermal resistance value in the environment where it is located includes: identifying the area of the human body covered by clothing and the exposed area of the human body through a camera; calculating the human body clothing thermal resistance value according to the ratio of the area of the human body covered by clothing to the exposed area of the human body; and / or, identifying the human body clothing type through a camera; determining the human body clothing thermal resistance value according to the human body clothing type; wherein, different human body clothing types correspond to different human body clothing thermal resistance values.

[0008] Optionally, controlling the air conditioner to adjust the environmental parameters of the environment where it is located according to the determined current human body thermal comfort index of the environment where it is located and the current human body thermal comfort range of the environment where it is located includes: judging whether the current human body thermal comfort index of the environment where it is located is within the current human body thermal comfort range;

[0009] If it is judged that the current human body thermal comfort index of the environment where it is located is within the current human body thermal comfort range, then keep the current set parameters unchanged; if it is judged that the current human body thermal comfort index is not within the current human body thermal comfort range, then determine the current target operating parameters of the air conditioner; perform corresponding control on the air conditioner according to the determined current target operating parameters of the air conditioner.

[0010] Optionally, determining the current human thermal comfort range of the environment according to the current usage scenario of the air conditioner, including: determining the environmental sensitivity coefficient corresponding to the current usage scenario, where different usage scenarios correspond to different environmental sensitivity coefficients; determining the current human thermal comfort range of the environment according to the determined environmental sensitivity coefficient corresponding to the current usage scenario; where the upper limit value of the current human thermal comfort range is equal to 0 plus the environmental sensitivity coefficient corresponding to the current usage scenario, and the lower limit value of the current human thermal comfort range is equal to 0 minus the environmental sensitivity coefficient corresponding to the current usage scenario.

[0011] Optionally, determining the current target operating parameters of the air conditioner, including: determining the current target wind speed value according to the distance between the human body in the environment and the air conditioner and the preset relationship curve between the distance between the human body and the air conditioner and the target wind speed value; and / or determining the current target temperature value according to the current usage scenario of the air conditioner, where different usage scenarios correspond to different proportionality coefficients and target temperature ranges; calculating the current target temperature value according to the proportionality coefficient and the target temperature range corresponding to the current usage scenario; and / or determining the current target humidity value according to the current usage scenario of the air conditioner, where different usage scenarios correspond to different target humidity values.

[0012] Optionally, controlling the air conditioner to adjust the environmental parameters of the environment according to the determined current human thermal comfort index of the environment and the current human thermal comfort range of the environment, including: performing PID control according to the deviation value between the current human thermal comfort index of the environment and the human thermal comfort range.

[0013] Optionally, further including: detecting whether the air quality of the environment meets a preset condition, where the preset condition includes: whether the concentration of the target gas is less than a preset concentration threshold; if it is detected that the air quality does not meet the preset condition, then changing the air quality of the environment by adjusting the fresh air volume.

[0014] On the other hand, the present invention provides a control device for an air conditioner, including: an acquisition unit for acquiring the current environmental parameters of the environment and the human body metabolic rate and human body clothing thermal resistance value in the environment; a determination unit for determining the current human thermal comfort index of the environment according to the environmental parameters, the human body metabolic rate and the human body clothing thermal resistance value acquired by the acquisition unit; a control unit for controlling the air conditioner to adjust the environmental parameters of the environment according to the current usage scenario and the current human thermal comfort index of the environment determined by the determination unit, including: determining the current human thermal comfort range of the environment according to the current usage scenario of the air conditioner; controlling the air conditioner to adjust the environmental parameters of the environment according to the determined current human thermal comfort index of the environment and the current human thermal comfort range of the environment.

[0015] Optionally, the acquisition unit acquires the human body metabolic rate M in the environment where it is located, including: identifying the human body activity category through a camera; determining the human body metabolic rate according to the human body activity category; wherein, different human body activity categories correspond to different human body metabolic rates.

[0016] Optionally, the acquisition unit acquires the thermal resistance value of the human body clothing in the environment where it is located, including:

[0017] Identifying the area of the human body covered by clothing and the exposed area of the human body through a camera; calculating the thermal resistance value of the human body clothing according to the ratio of the area of the human body covered by clothing to the exposed area of the human body; and / or, identifying the type of the human body clothing through a camera; determining the thermal resistance value of the human body clothing according to the type of the human body clothing; wherein, different types of human body clothing correspond to different thermal resistance values of the human body clothing.

[0018] Optionally, the control unit controls the air conditioner to adjust the environmental parameters of the environment where it is located according to the determined current human thermal comfort index and the current human thermal comfort range in the environment where it is located, including: judging whether the current human thermal comfort index in the environment where it is located is within the current human thermal comfort range; if it is judged that the current human thermal comfort index in the environment where it is located is within the current human thermal comfort range, then keep the current set parameters unchanged; if it is judged that the current human thermal comfort index is not within the current human thermal comfort range, then determine the current target operating parameters of the air conditioner; and controlling the air conditioner accordingly according to the determined current target operating parameters of the air conditioner.

[0019] Optionally, the control unit determines the current human thermal comfort range in the environment where it is located according to the current usage scenario of the air conditioner, including: determining the environmental sensitivity coefficient corresponding to the current usage scenario, wherein, different usage scenarios correspond to different environmental sensitivity coefficients; determining the current human thermal comfort range in the environment where it is located according to the determined environmental sensitivity coefficient corresponding to the current usage scenario; wherein, the upper limit value of the current human thermal comfort range is equal to 0 plus the environmental sensitivity coefficient corresponding to the current usage scenario, and the lower limit value of the current human thermal comfort range is equal to 0 minus the environmental sensitivity coefficient corresponding to the current usage scenario.

[0020] Optionally, the control unit determines the current target operating parameters of the air conditioner, including:

[0021] Determine the current target wind speed value according to the distance between the human body in the environment and the air conditioner and the pre-set relationship curve between the distance between the human body and the air conditioner and the target wind speed value; and / or, determine the current target temperature value according to the current usage scenario of the air conditioner, where different usage scenarios correspond to different proportionality coefficients and target temperature ranges; calculate the current target temperature value according to the proportionality coefficient and the target temperature range corresponding to the current usage scenario; and / or, determine the current target humidity value according to the current usage scenario of the air conditioner, where different usage scenarios correspond to different target humidity values.

[0022] Optionally, the control unit controls the air conditioner to adjust the environmental parameters of the environment according to the currently determined human body thermal comfort index in the environment and the currently determined human body thermal comfort range in the environment, including: performing PID control according to the deviation value between the currently determined human body thermal comfort index in the environment and the human body thermal comfort range.

[0023] Optionally, it further includes: a detection unit for detecting whether the air quality in the environment meets a preset condition, where the preset condition includes: whether the concentration of the target gas is less than a preset concentration threshold; an adjustment unit for, if the detection unit detects that the air quality does not meet the preset condition, changing the air quality in the environment by adjusting the fresh air volume.

[0024] Another aspect of the present invention provides a storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of any of the foregoing methods are implemented.

[0025] Another aspect of the present invention provides an air conditioner, including a processor, a memory, and a computer program stored on the memory and operable on the processor, and when the processor executes the program, the steps of any of the foregoing methods are implemented.

[0026] Another aspect of the present invention provides an air conditioner, including any of the foregoing control devices.

[0027] Another aspect of the present invention provides a computer program product, including a computer program, and when the computer program is executed by a processor, the steps of any of the foregoing methods are implemented.

[0028] According to the technical solution of the present invention, through multi-environment parameter perception and air conditioner usage scenario recognition, the optimal environmental parameters are dynamically adjusted according to different usage scenarios, providing a personalized comfortable experience.

[0029] According to the technical solution of the present invention, an environmental sensitivity coefficient is introduced to dynamically adjust the human body thermal comfort range, which can ensure the comfort of users in different activity states while realizing energy-saving operation of the air conditioner.

[0030] According to the technical solution of the present invention, by adopting the dynamic calculation of PMV value and PID regulation technology, the relationship between various parameters in the environment can be fully considered, the automatic optimization management of the space environment can be realized, and it is ensured that users can always maintain a comfortable state during activities in the space.

[0031] According to the technical solution of the present invention, the automatic control of space environment parameters is realized by using PID technology according to the human thermal comfort index PMV, the intelligent management of the space environment is realized, the parameters do not need to be manually adjusted by the user, and the space environment parameters can be actively adjusted, improving user satisfaction. Brief Description of the Drawings

[0032] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute an improper limitation to the present invention. In the drawings:

[0033] Figure 1 It is a schematic diagram of a method of an embodiment of the control method of the air conditioner provided by the present invention;

[0034] Figure 2 It shows a flowchart of steps of a specific implementation manner of adjusting the environmental parameters of the location environment according to the current usage scenario and the current human thermal comfort index determined for the location environment;

[0035] Figure 3 It shows a flowchart of steps of another specific implementation manner of adjusting the environmental parameters of the location environment according to the current usage scenario and the human thermal comfort index;

[0036] Figure 4 It is a schematic diagram of a method of another embodiment of the control method of the air conditioner provided by the present invention;

[0037] Figure 5 It shows a logical diagram of PID regulation of the human thermal comfort index and indoor air quality;

[0038] Figure 6 It shows the control logic block diagram of the present invention;

[0039] Figure 7 It is a structural block diagram of an embodiment of the control device of the air conditioner provided by the present invention;

[0040] Figure 8 It is a structural block diagram of another embodiment of the control device of the air conditioner provided by the present invention. Detailed Embodiment

[0041] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0042] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or devices.

[0043] In the related art, the control of air conditioners mainly focuses on temperature regulation, ignoring the impact of other key parameters such as humidity, air quality, and air flow velocity on user comfort and health, and failing to comprehensively consider the mutual influence between parameters during regulation.

[0044] In the related art, air conditioners usually adopt a passive adjustment mode, relying on manual settings by users, and unable to dynamically adjust according to environmental changes and user needs. It is difficult to meet the personalized needs in different usage scenarios.

[0045] In the related art, during the operation of air conditioners, due to the lack of intelligent adjustment strategies, energy waste is likely to occur.

[0046] The present invention provides a control method for an air conditioner.

[0047] Figure 1 It is a schematic diagram of a method for an embodiment of the control method of the air conditioner provided by the present invention.

[0048] As Figure 1 shown, according to an embodiment of the present invention, the control method of the air conditioner at least includes step S110, step S120, and step S130.

[0049] Step S110, collect the current environmental parameters of the surrounding environment, as well as the human metabolic rate M and the human clothing thermal resistance I of the surrounding environment cl .

[0050] The environmental parameters include: air temperature ta , air humidity H, and mean radiant temperature t r , and air velocity v a One or more of them.

[0051] Specifically, the parameter acquisition module may include at least one of a millimeter-wave radar, a camera, an instantaneous air temperature detector, an instantaneous air humidity detector, an instantaneous mean radiant temperature detector, and an instantaneous wind speed detector.

[0052] The millimeter-wave radar detects the position of the human body; the camera identifies the human body's activity state and clothing thermal resistance, and the camera is preferably a high-sensitivity camera; the instantaneous air temperature detector detects the air temperature t a , the instantaneous air humidity detector detects the air humidity H, and the instantaneous mean radiant temperature detector detects the mean radiant temperature t r (radiant temperature of a person or object), and the instantaneous wind speed detector detects the air velocity v a .

[0053] In a specific embodiment, the thermal resistance value I of the clothing worn by the human body in the surrounding environment is collected cl , which may specifically include: identifying the area of the human body covered by clothing and the exposed area of the human body through the camera, and calculating the thermal resistance value of the human body clothing according to the ratio of the area of the human body covered by clothing to the exposed area of the human body, that is:

[0054] I cl = A f / A n

[0055] Wherein, A f is the area of the human body covered by clothing; A n is the exposed area of the human body.

[0056] In another specific embodiment, the type of clothing worn by the human body is identified through the camera, and the thermal resistance value of the human body clothing is determined according to the type of clothing worn by the human body. Among them, different types of clothing worn by the human body correspond to different thermal resistance values of the human body clothing. In a specific embodiment, according to the identified type of clothing worn by the human body in the surrounding environment and the preset comparison table of the type of clothing worn by the human body and the corresponding thermal resistance value of the human body clothing, the thermal resistance value of the human body clothing in the surrounding environment is determined.

[0057] Table 1 is an example of a comparison table of the type of clothing worn by the human body and the corresponding thermal resistance value of the human body clothing.

[0058] Table 1

[0059]

[0060] In a specific embodiment, collecting the human body metabolic rate M in the environment where it is located includes: identifying the category of human body activities through a camera, and determining the human body metabolic rate according to the category of human body activities. Among them, different categories of human body activities correspond to different human body metabolic rates. In a specific embodiment, according to the identified category of human body activities in the environment where it is located and the preset comparison table of the category of human body activities and the corresponding human body metabolic rates, the human body metabolic rate in the environment where it is located is determined.

[0061] Table 2 is an example of the comparison table of the category of human body activities and the corresponding human body metabolic rates.

[0062] Table 2

[0063]

[0064] Step S120, determine the current human body thermal comfort index PMV in the environment where it is located according to the collected environmental parameters, the human body metabolic rate, and the human body clothing thermal resistance value.

[0065] The human body thermal comfort index PMV can adopt a seven-level scale, for example. The thermal sensations respectively correspond to: cold, cool, slightly cool, moderate, slightly warm, warm, hot, and the corresponding PMV index values are -3, -2, -1, 0, +1, +2, +3 respectively. For example, Table 3 shows an example of the comparison table of thermal sensations and PMV index values.

[0066] Table 3

[0067]

[0068] In a specific embodiment, PMV is calculated according to the following formula:

[0069]

[0070] Among them, M is the human body metabolic rate; W is the power of the human body doing external work, and the value is 0; P a is the water vapor partial pressure of the environment, which can be calculated according to the air temperature and the air relative humidity, , t a is the air temperature, H is the air relative humidity; f cl is the area coefficient of the clothing,

[0071] ;

[0072] I cl is the clothing thermal resistance; t cl is the temperature of the outer surface of the clothes (which can be detected by an infrared sensor or a thermal imager); is the mean radiant temperature; h c is the convective heat transfer coefficient,

[0073]

[0074] v is the wind speed, i.e., the air flow velocity.

[0075] Step S130: According to the current usage scenario and the determined current human thermal comfort index of the environment where it is located, control the air conditioner to adjust the environmental parameters of the environment where it is located.

[0076] Specifically, according to the current usage scenario of the air conditioner, determine the current human thermal comfort range of the environment where it is located; according to the determined current human thermal comfort index of the environment where it is located and the current human thermal comfort range of the environment where it is located, control the air conditioner to adjust the environmental parameters of the environment where it is located.

[0077] Figure 2 The flowchart of steps of a specific implementation manner of adjusting the environmental parameters of the environment where it is located according to the current usage scenario and the determined current human thermal comfort index PMV of the environment where it is located is shown.

[0078] As Figure 2 shown, step S130 includes: step S131 of determining the current human thermal comfort range of the environment where it is located according to the current usage scenario of the air conditioner, and steps S132 to S135 of controlling the air conditioner to adjust the environmental parameters of the environment where it is located according to the determined current human thermal comfort index of the environment where it is located and the current human thermal comfort range of the environment where it is located.

[0079] Step S131: According to the current usage scenario of the air conditioner, determine the current human thermal comfort range of the environment where it is located.

[0080] The current usage scenario of the air conditioner can be recognized by a camera. The usage scenario may specifically include at least one of a sports scenario, a cooking scenario, an entertainment scenario, a work scenario, a party scenario, and a sleep scenario.

[0081] The human thermal comfort range may specifically be the range of human thermal comfort indexes that make a human body feel comfortable in the current usage scenario. Specifically, determine the environmental sensitivity coefficient corresponding to the current usage scenario, where different usage scenarios correspond to different environmental sensitivity coefficients; determine the current human thermal comfort range of the environment where it is located according to the determined environmental sensitivity coefficient corresponding to the current usage scenario.

[0082] Among them, the upper limit value of the current human thermal comfort range is equal to 0 plus the environmental sensitivity coefficient corresponding to the current usage scenario, and the lower limit value of the current human thermal comfort range is equal to 0 minus the environmental sensitivity coefficient corresponding to the current usage scenario. That is, the human thermal comfort range is (0 - x, 0 + x), where x is the environmental sensitivity coefficient. Different usage scenarios correspond to different environmental sensitivity coefficients, and the environmental sensitivity coefficient x can be adapted to corresponding values according to different usage scenarios.

[0083] In a specific implementation, the preset environmental sensitivity coefficient corresponding to the current usage scenario can be determined according to the corresponding relationship between different preset usage scenarios and different preset sensitivity coefficients. This corresponding relationship can be specifically represented by a corresponding relationship table of different preset usage scenarios and different preset environmental sensitivity coefficients.

[0084] For example, Table 4 shows an example of the corresponding relationship table of different usage scenarios and different preset sensitivity coefficients. Table 4 is only for example and does not limit the present invention.

[0085] Table 4

[0086]

[0087] Step S132, determine whether the current human thermal comfort index PMV in the current environment is within the current human thermal comfort range.

[0088] Step S133, if it is determined that the current human thermal comfort index PMV in the current environment is within the current human thermal comfort range, then keep the current set parameters unchanged.

[0089] The set parameters include at least one of the set speed, set temperature, and set humidity. That is, if it is determined that the current human thermal comfort index PMV in the current environment is within the current human thermal comfort range, then keep the current set parameters as the target operating parameters for the air conditioner to operate. The set speed can specifically be the set speed of the internal fan of the air conditioner.

[0090] Step S134, if it is determined that the current human thermal comfort index PMV is not within the current human thermal comfort range, then determine the current target operating parameters of the air conditioner.

[0091] The target operating parameters include at least one of the target wind speed value, target temperature value, and target humidity value of the air conditioner. The target wind speed of the air conditioner may specifically be the current optimal wind speed value of the air conditioner, the target temperature value of the air conditioner may specifically be the current optimal temperature value of the air conditioner, and the target humidity value of the air conditioner may specifically be the current optimal humidity value of the air conditioner. That is, if it is determined that the current predicted mean vote (PMV) of the human thermal comfort index is not within the current human thermal comfort range, at least one of the current optimal wind speed value, optimal temperature value, and optimal humidity value is determined.

[0092] In a specific embodiment, according to the distance between the human body in the environment and the air conditioner and the preset relationship curve between the distance between the human body and the air conditioner and the target wind speed value (optimal wind speed value), the current target wind speed value (optimal wind speed value) is determined. That is, the target wind speed value corresponding to the distance between the human body in the environment and the air conditioner on this relationship curve is found, which is the current target wind speed value (optimal wind speed value).

[0093] In a specific embodiment, according to the current usage scenario of the air conditioner, the current target temperature value (optimal temperature value) is determined. Specifically, the proportionality coefficient and the target temperature range corresponding to the current usage scenario are determined, where different usage scenarios correspond to different proportionality coefficients and target temperature ranges; the current target temperature value (optimal temperature value) is calculated according to the proportionality coefficient and the target temperature range corresponding to the current usage scenario.

[0094] Specifically, different usage scenarios are assigned different values of the proportionality coefficient and target temperature ranges. According to the preset corresponding relationship between different usage scenarios and different proportionality coefficients and target temperature ranges, the proportionality coefficient and target temperature range corresponding to the current usage scenario are determined. This corresponding relationship may specifically be represented by a preset corresponding relationship table between different usage scenarios and different proportionality coefficients and target temperature ranges. For example, Table 5 shows an example of the corresponding relationship table between different usage scenarios and different proportionality coefficients and target temperature ranges.

[0095] Table 5

[0096]

[0097] In a specific embodiment, according to the determined proportionality coefficient K g and the target temperature range t g the current target temperature value is calculated using the following formula:

[0098] T = t a + K g (t g - t a )

[0099] where T is the target temperature value, i.e., the target value of temperature adjustment, and t a is the air temperature, in K g is the proportionality coefficient, t g is the target temperature range under a specific scenario. Since the target temperature range t g is a temperature range, the obtained target temperature value can also be a target temperature value range. When adjusting the air temperature, adjust according to the obtained target temperature range to make the air temperature fall within the target temperature range.

[0100] In a specific embodiment, according to the current usage scenario of the air conditioner, the current target humidity value (optimal humidity value) is determined. Among them, different usage scenarios correspond to different target air relative humidities. In a specific embodiment, the target humidity value corresponding to the current usage scenario can be determined according to the preset corresponding relationship between different usage scenarios and the target humidity value (optimal humidity value). This corresponding relationship can be specifically represented by a preset corresponding relationship table between different usage scenarios and the target humidity value (optimal humidity value). For example, Table 6 shows an example of the corresponding relationship table between different usage scenarios and the target humidity value.

[0101] Table 6

[0102]

[0103] Step S135, according to the determined current target operating parameters of the air conditioner, perform corresponding control on the air conditioner.

[0104] Specifically, determine the set parameters of the air conditioner according to the current target operating parameters, so as to control the air conditioner. That is, convert the calculated current target wind speed value (optimal wind speed value) into the internal fan speed value, as the current internal fan set speed (that is, convert the target wind speed value into the internal fan speed value, as the set speed of the internal fan, so as to control the wind speed to reach the target wind speed value by controlling the internal fan speed), use the calculated current target temperature value (optimal temperature value) as the current set temperature, and / or use the calculated current target humidity value (optimal humidity value) as the current set humidity. The temperature and / or humidity are adjusted from the current state towards the target value, and during the process, it is judged whether the current instantaneous thermal sensation (the human thermal comfort index PMV) falls within the human thermal comfort range. ]

[0105] Optionally, the air conditioner can also be controlled by the PID control method to make the human thermal comfort index PMV in the environment within the human comfort range.

[0106] Specifically, PID control is performed based on the deviation value of the current human thermal comfort index PMV in the environment from the human thermal comfort range (for example, the deviation value of the current human thermal comfort index PMV from 0, and the deviation values from the two end values of the human thermal comfort range), that is, the air temperature t is adjusted. a the air velocity v a and the air humidity H, so that the human thermal comfort index PMV in the environment is within the human comfort range. The PID control can be referred to Figure 5 as shown.

[0107] Figure 3 shows a step flowchart of another specific implementation manner for adjusting the environmental parameters of the environment according to the current usage scenario and the human thermal comfort index. As Figure 3 shown, when the air conditioner starts, it is turned on according to the memory value or the remote control parameters, and then step S1 is executed.

[0108] Step S1, calculate and determine whether the current human thermal comfort index PMV is within the thermal sensation range (human thermal comfort range). If so, execute step S2; otherwise, execute step S3.

[0109] Step S2, if it is determined that the current PMV is within the thermal sensation range (human thermal comfort range), then control the air conditioner to maintain the current set wind speed, air temperature, and air relative humidity, continue to monitor the instantaneous PMV, and execute step S1.

[0110] Step S3, if it is determined that the current PMV is not within the thermal sensation range, then calculate the human distance, determine the optimal fan speed value V [[ID=2,2]] a and adjust the indoor fan speed according to the determined optimal fan speed value. After that, determine whether the current PMV falls within the thermal sensation range. If so, execute step S2; otherwise, execute step S4.

[0111] Among them, the wind speed is obtained from the relationship curve between the distance between the human body and the air conditioner and the preset distance between the human body and the air conditioner and the optimal fan speed value. Control the fan speed to gradually increase from 0 to the determined optimal fan speed value Va, and determine whether the current PMV falls within the preset thermal sensation range during the process of gradually increasing the fan speed.

[0112] Step S4, after adjusting the indoor fan speed according to the determined optimal fan speed value, if it is determined that the current PMV is not within the preset thermal sensation range, then calculate the optimal temperature value ta at this time according to the usage scenario, and adjust the current target temperature of the air conditioner according to the calculated optimal temperature value, and determine whether the PMV value at this time falls within the thermal sensation range. If so, execute step S2; otherwise, execute step S5.

[0113] Step S5, after adjusting the current target temperature of the air conditioner, if it is determined that the current PMV is not within the preset thermal sensation range, calculate the optimal humidity value H at this time according to the human activity situation, adjust the current target humidity of the air conditioner according to the calculated optimal humidity value, and determine whether the PMV value at this time falls within the thermal sensation range. If so, execute Step S2; otherwise, execute Step S3.

[0114] Thus, the present invention calculates the optimal environmental parameters in various scenarios and can detect the PMV value in real time to ensure that the user can always maintain a comfortable state during activities in the space.

[0115] Figure 4 It is a schematic diagram of the method of another embodiment of the control method of the air conditioner provided by the present invention.

[0116] As Figure 4 shown, according to another embodiment of the present invention, the control method of the air conditioner further includes Step S140 and Step S150.

[0117] Step S140, detect whether the air quality of the environment where it is located meets the preset conditions.

[0118] Step S150, if it is detected that the air quality does not meet the preset conditions, change the air quality of the environment where it is located by adjusting the fresh air volume.

[0119] The preset conditions may specifically include whether the concentration of the target gas is less than the preset concentration threshold. The target gas includes more than one gas, for example, it may include carbon dioxide and / or refrigerant. Among them, the preset concentration thresholds corresponding to different gases are different. The concentration of the target gas can be detected by a concentration sensor.

[0120] For example, when it is detected that the concentration of the target gas is greater than or equal to the preset concentration threshold, increase the fresh air volume to reduce the concentration of the target gas. Adjusting the fresh air volume to change the air quality of the environment where it is located can specifically adopt PID regulation, and specifically can perform PID regulation according to the difference between the concentration of the target gas and the corresponding preset concentration threshold.

[0121] Figure 5 shows a logic diagram of PID regulation for the human thermal comfort index PMV and indoor air quality. As Figure 5 shown, detect environmental parameters (air temperature ta, mean radiant temperature t r , air velocity v a and air humidity H), and calculate the PMV value according to the metabolic rate M of the user, the clothing thermal resistance value I cl and the detected environmental parameters. Adjust the environmental parameters (air temperature t a , air velocity v aand air humidity H) to make the PMV value reach the human thermal comfort range corresponding to the current usage scenario. When the PMV falls within the comfort range, keep the temperature, humidity, and air velocity unchanged. Within the comfort range, the air conditioner can reduce power and operate energy-efficiently. Detect the concentration of the target gas, compare it with the preset concentration threshold to obtain an air quality deviation signal, and determine the adjusted fresh air volume according to the air command deviation signal.

[0122] Optionally, the method further includes: performing corresponding control according to the current usage scenario of the air conditioner.

[0123] In a specific embodiment, if the current usage scenario of the air conditioner is a sports scenario, adjust the air supply angle according to the position of the user in the environment to avoid direct blowing on the user, and reduce the set temperature of the air conditioner.

[0124] Specifically, sports scenario: The user is doing high-intensity exercise (such as running, yoga, or fitness) at home. It is detected that the indoor temperature rises and the humidity increases. At the same time, the user's exercise state is recognized through a high-sensitivity camera. The millimeter-wave radar detects the user's position. The air conditioner automatically switches to the "sports mode", adjusts the air supply angle to avoid direct blowing on the user, and at the same time reduces the temperature and increases air circulation to help the user stay cool.

[0125] In a specific embodiment, if the current usage scenario of the air conditioner is a cooking scenario, turn on the exhaust mode of the air conditioner and adjust the air supply direction to help discharge oil fumes and moisture.

[0126] Specifically, cooking scenario: The user is cooking in the kitchen, generating a large amount of heat and steam. It is detected that the indoor temperature rises and the humidity increases. At the same time, the air quality sensor detects an increase in the oil fume concentration. The air conditioner automatically turns on the exhaust mode and adjusts the air supply direction to help discharge oil fumes and moisture.

[0127] In a specific embodiment, if the current usage scenario of the air conditioner is an entertainment scenario, reduce the rotation speed of the air conditioner and adjust the air supply direction to avoid direct blowing on the user.

[0128] Specifically, entertainment scenario: The user is watching a movie or playing an electronic game in the living room. It is detected that the ambient light is relatively dim and the user is in a sitting state. The air conditioner switches to the "entertainment mode", reduces the wind speed, and adjusts the air supply angle to avoid disturbing the user.

[0129] In a specific embodiment, if the current usage scenario of the air conditioner is a working scenario, turn on the fresh air mode, adjust the air supply direction to avoid direct blowing on the user, and reduce the wind speed.

[0130] Specifically, the working scenario is as follows: The user is working or studying in the study and requires a quiet and focused environment. It is detected that the indoor temperature is appropriate, but the air quality is slightly low (e.g., the carbon dioxide concentration is high). The air conditioner automatically turns on the fresh air mode to optimize the air quality and at the same time adjusts the air supply angle to avoid noise interference.

[0131] In a specific embodiment, if the current usage scenario of the air conditioner is a party scenario, the wind speed is increased and the fresh air mode is turned on.

[0132] Specifically, the party scenario: The user holds a small party at home and there are many people indoors. It is detected that the indoor temperature rises and the humidity increases, and at the same time, a high-sensitivity camera identifies multiple people's activities. The air conditioner automatically switches to the "party mode", increases the wind speed and turns on the fresh air to increase air circulation, and keeps the environment cool and comfortable.

[0133] In a specific embodiment, if the current usage scenario of the air conditioner is a sleep scenario, the brightness of the display screen of the air conditioner is controlled to decrease, and the fresh air mode is turned on.

[0134] Specifically, in the sleep scenario, when the user falls asleep, the brightness of the display screen is reduced to avoid the environmental temperature being too hot or too cold. The humidity is maintained stable to avoid dryness at night. For example, the oxygen and carbon dioxide concentrations are balanced to ensure air circulation.

[0135] To clearly illustrate the technical solution of the present invention, the execution process of the control method of the air conditioner provided by the present invention will be described below with a specific embodiment.

[0136] Figure 6 The control logic block diagram of the present invention is shown. As Figure 6 shown, the control part of the present invention mainly includes a parameter acquisition module, a thermal comfort calculation module, and an intelligent control module.

[0137] The parameter acquisition module is used to detect the indoor environmental temperature and the outdoor environmental temperature, including a millimeter-wave radar, a high-sensitivity camera, an instantaneous air temperature detector, an instantaneous air humidity detector, an instantaneous mean radiant temperature detector, and an instantaneous wind speed detector.

[0138] The millimeter-wave radar detects the position of the human body, the high-sensitivity camera identifies the human body activity state and the clothing thermal resistance, the instantaneous air temperature detector detects the air temperature t a , the instantaneous air humidity detector detects the air humidity H, the instantaneous mean radiant temperature detector detects the mean radiant temperature t r , and the instantaneous wind speed detector detects the air flow velocity v a .

[0139] The metabolic rate M of a person in the air-conditioned environment identifies the human body activity category through a high-sensitivity camera and a millimeter-wave radar, and quantitatively analyzes the human body metabolic rate. The clothing thermal resistance value Icl Identified by a high-sensitivity camera and a temperature detector, and the thermal resistance value I of the clothing is quantitatively analyzed according to the ratio of the area of the clothing covering the human body to the exposed area of the human body. cl .

[0140] The intelligent control module includes a comfort calculation module and an adjustment module. Among them, the comfort calculation module is used to calculate the instantaneous PMV of the target area according to the instantaneous environmental parameters collected by the parameter collection module, and send the calculated instantaneous PMV to the adjustment module. The adjustment module adjusts the environmental parameters according to the instantaneous PMV. The adjustment module includes: a wind speed adjustment subsystem, a humidity adjustment subsystem, and a temperature adjustment subsystem.

[0141] The comfort calculation module calculates the human thermal comfort index PMV based on the data collected by the parameter collection module. Further, according to the current usage scenario of the air conditioner (including at least one of a sports scenario, a cooking scenario, an entertainment scenario, a work scenario, a party scenario, and a sleep scenario), the optimal air conditioner temperature and the optimal air humidity comfort are determined, and the optimal internal fan speed is determined according to the relationship curve between the distance between the human body and the air conditioner and the target internal fan speed. The wind speed adjustment subsystem, the humidity adjustment subsystem, and the temperature adjustment subsystem of the adjustment module adjust the wind speed, humidity, and temperature according to the human thermal comfort index PMV calculated by the comfort calculation module, the current optimal internal fan speed, the optimal air humidity, and the optimal air conditioner temperature.

[0142] The present invention also provides a control device for an air conditioner.

[0143] Figure 7 It is a structural block diagram of an embodiment of the control device for an air conditioner provided by the present invention. As Figure 7 shown, the control device 100 includes: a collection unit 110, a determination unit 120, and a control unit 130.

[0144] The collection unit 110 is used to collect the current environmental parameters of the environment where it is located, as well as the human body metabolic rate and the human body clothing thermal resistance value in the environment where it is located.

[0145] The environmental parameters include: the air temperature t a , the air humidity H, the mean radiant temperature t r and the air velocity v a in at least one of them.

[0146] Specifically, the parameter collection module may include at least one of a millimeter wave radar, a camera, an instantaneous air temperature detector, an instantaneous air humidity detector, an instantaneous mean radiant temperature detector, and an instantaneous wind speed detector.

[0147] The millimeter-wave radar detects the position of the human body; the camera identifies the activity state of the human body and the thermal resistance of the clothing, and the camera is preferably a high-sensitivity camera; the instantaneous air temperature detector detects the air temperature ta, the instantaneous air humidity detector detects the air humidity H, the instantaneous mean radiant temperature detector detects the mean radiant temperature tr, and the instantaneous wind speed detector detects the air velocity v a .

[0148] In a specific embodiment, the thermal resistance value I of the human clothing in the surrounding environment is collected cl , which specifically may include: identifying the area of the human body covered by clothing and the exposed area of the human body through the camera, and calculating the thermal resistance value of the human clothing according to the ratio of the area of the human body covered by clothing to the exposed area of the human body, that is:

[0149] I cl =A f / A n

[0150] wherein, A f is the area of the human body covered by clothing; A n is the exposed area of the human body.

[0151] In another specific embodiment, the type of human clothing is identified through the camera, and the thermal resistance value of the human clothing is determined according to the type of human clothing. Among them, different types of human clothing correspond to different thermal resistance values of the human clothing.

[0152] Table 1

[0153]

[0154] In a specific embodiment, according to the identified type of human clothing in the surrounding environment and the preset comparison table of the type of human clothing and the corresponding thermal resistance value of the human clothing, the thermal resistance value of the human clothing in the surrounding environment is determined. For example, Table 1 is an example of the comparison table of the type of human clothing and the corresponding thermal resistance value of the human clothing.

[0155] In a specific embodiment, the metabolic rate M of the human body in the surrounding environment is collected, including: identifying the activity category of the human body through the camera, and determining the metabolic rate of the human body according to the activity category of the human body. Among them, different activity categories of the human body correspond to different metabolic rates of the human body. In a specific embodiment, according to the identified activity category of the human body in the surrounding environment and the preset comparison table of the activity category of the human body and the corresponding metabolic rate, the metabolic rate of the human body in the surrounding environment is determined. Table 2 is an example of the comparison table of the activity category of the human body and the corresponding metabolic rate.

[0156] Table 2

[0157]

[0158] A determination unit 120, configured to determine a current human thermal comfort index of the environment where it is located according to the environmental parameters, the human metabolic rate, and the human clothing thermal resistance collected by the collection unit.

[0159] The human thermal comfort index PMV can adopt a seven-level scale, for example. The thermal sensations respectively correspond to: cold, cool, slightly cool, moderate, slightly warm, warm, hot, and the corresponding PMV index values are -3, -2, -1, 0, +1, +2, +3. For example, Table 3 shows an example of a comparison table between thermal sensations and PMV index values.

[0160] Table 3

[0161]

[0162] In a specific embodiment, PMV is calculated according to the following formula:

[0163]

[0164] where M is the human metabolic rate; W is the power of the human body doing external work, and the value is 0; P a is the water vapor partial pressure of the environment, which can be calculated according to the air temperature and the air relative humidity, , t a is the air temperature, H is the air relative humidity; f cl is the area coefficient of the clothing,

[0165] ;

[0166] I cl is the clothing thermal resistance; t cl is the temperature of the outer surface of the clothes (which can be detected by an infrared sensor or a thermal imager); is the mean radiant temperature; h c is the convective heat transfer coefficient,

[0167]

[0168] v is the wind speed, that is, the air velocity.

[0169] A control unit 130, configured to control the air conditioner to adjust the environmental parameters of the environment where it is located according to the current usage scenario and the current human thermal comfort index of the environment determined by the determination unit.

[0170] Specifically, according to the current usage scenario of the air conditioner, determine the current human thermal comfort range of the environment where it is located; according to the determined current human thermal comfort index of the environment where it is located and the current human thermal comfort range of the environment where it is located, control the air conditioner to adjust the environmental parameters of the environment where it is located.

[0171] Figure 2 It shows a step flow chart of a specific implementation manner in which the control unit adjusts the environmental parameters of the environment according to the current usage scenario and the currently determined predicted mean vote (PMV) of human thermal comfort in the environment. As Figure 2 shown, step S130 includes: step S131 of determining the current human thermal comfort range of the environment according to the current usage scenario of the air conditioner, and steps S132 to S135 of controlling the air conditioner to adjust the environmental parameters of the environment according to the currently determined predicted mean vote of human thermal comfort in the environment and the current human thermal comfort range of the environment.

[0172] Step S131, determining the current human thermal comfort range of the environment according to the current usage scenario of the air conditioner.

[0173] The current usage scenario of the air conditioner can be identified by a camera. The usage scenario may specifically include at least one of a sports scenario, a cooking scenario, an entertainment scenario, a work scenario, a party scenario, and a sleep scenario.

[0174] The human thermal comfort range may specifically be the range of human thermal comfort indices that make a human feel comfortable in the current usage scenario. Specifically, determine the environmental sensitivity coefficient corresponding to the current usage scenario, where different usage scenarios correspond to different environmental sensitivity coefficients; determine the current human thermal comfort range of the environment according to the determined environmental sensitivity coefficient corresponding to the current usage scenario. Among them, the upper limit value of the current human thermal comfort range is equal to 0 plus the environmental sensitivity coefficient corresponding to the current usage scenario, and the lower limit value of the current human thermal comfort range is equal to 0 minus the environmental sensitivity coefficient corresponding to the current usage scenario, that is, the human thermal comfort range is (0 - x, 0 + x), where x is the environmental sensitivity coefficient. Different usage scenarios correspond to different environmental sensitivity coefficients, and the environmental sensitivity coefficient x can be adapted to corresponding values according to different usage scenarios.

[0175] In a specific implementation manner, the preset environmental sensitivity coefficient corresponding to the current usage scenario may be determined according to the corresponding relationship between different preset usage scenarios and different preset sensitivity coefficients. This corresponding relationship may specifically be represented by a corresponding relationship table of different preset usage scenarios and different preset environmental sensitivity coefficients. For example, Table 4 shows an example of a corresponding relationship table of different usage scenarios and different preset sensitivity coefficients.

[0176] Table 4

[0177]

[0178] Step S132: Determine whether the current predicted mean vote (PMV), an index of human thermal comfort in the current environment, is within the current human thermal comfort range.

[0179] Step S133: If it is determined that the current PMV, an index of human thermal comfort in the current environment, is within the current human thermal comfort range, then keep the current set parameters unchanged.

[0180] The set parameters include at least one of a set rotational speed, a set temperature, and a set humidity. That is, if it is determined that the current PMV, an index of human thermal comfort in the current environment, is within the current human thermal comfort range, then keep the current set parameters as the target operating parameters for the air conditioner to operate. The set rotational speed may specifically be the set rotational speed of the internal fan of the air conditioner.

[0181] Step S134: If it is determined that the current PMV, an index of human thermal comfort, is not within the current human thermal comfort range, then determine the current target operating parameters of the air conditioner.

[0182] The target operating parameters include at least one of a target wind speed value, a target temperature value, and a target humidity value of the air conditioner. The target wind speed of the air conditioner may specifically be the current optimal wind speed value of the air conditioner, the target temperature value of the air conditioner may specifically be the current optimal temperature value of the air conditioner, and the target humidity value of the air conditioner may specifically be the current optimal humidity value of the air conditioner. That is, if it is determined that the current PMV, an index of human thermal comfort, is not within the current human thermal comfort range, then determine at least one of the current optimal wind speed value, optimal temperature value, and optimal humidity value.

[0183] In a specific embodiment, according to the distance between the human body in the current environment and the air conditioner and a preset relationship curve between the distance between the human body and the air conditioner and the target wind speed value (optimal wind speed value), determine the current target wind speed value (optimal wind speed value). That is, find the target wind speed value corresponding to the distance between the human body in the current environment and the air conditioner on this relationship curve, which is the current target wind speed value (optimal wind speed value).

[0184] In a specific embodiment, according to the current usage scenario of the air conditioner, determine the current target temperature value (optimal temperature value). Specifically, determine the proportionality coefficient and the target temperature range corresponding to the current usage scenario, where different usage scenarios correspond to different proportionality coefficients and target temperature ranges; calculate the current target temperature value (optimal temperature value) according to the proportionality coefficient and the target temperature range corresponding to the current usage scenario.

[0185] Specifically, different usage scenarios are assigned different values of the proportionality coefficient and different target temperature ranges. According to the preset corresponding relationship between different usage scenarios and different proportionality coefficients and target temperature ranges, the proportionality coefficient and target temperature range corresponding to the current usage scenario can be determined. This corresponding relationship can be specifically represented by a preset corresponding relationship table between different usage scenarios and different proportionality coefficients and target temperature ranges. For example, Table 5 shows an example of a corresponding relationship table between different usage scenarios and different proportionality coefficients and target temperature ranges.

[0186] Table 5

[0187]

[0188] In a specific embodiment, according to the determined proportionality coefficient K g and the target temperature range t g calculate the current target temperature value, which can be calculated using the following formula:

[0189] T = t a + K g (t g - t a )

[0190] where T is the target temperature value, that is, the target value of temperature adjustment, t a is the air temperature, K g is the proportionality coefficient, and t g is the target temperature range in a specific scenario. Since the target temperature range t g is a temperature range, the obtained target temperature value can also be a target temperature value range. When adjusting the air temperature, adjust according to the obtained target temperature range to make the air temperature fall within the target temperature range.

[0191] In a specific embodiment, according to the current usage scenario of the air conditioner, determine the current target humidity value (optimal humidity value). Among them, different usage scenarios correspond to different target air relative humidities. In a specific embodiment, the target humidity value corresponding to the current usage scenario can be determined according to the preset corresponding relationship between different usage scenarios and the target humidity value (optimal humidity value). This corresponding relationship can be specifically represented by a preset corresponding relationship table between different usage scenarios and the target humidity value (optimal humidity value).

[0192] For example, Table 6 shows an example of a corresponding relationship table between different usage scenarios and target humidity values.

[0193] Table 6

[0194]

[0195] Step S135: According to the determined current target operating parameters of the air conditioner, perform corresponding control on the air conditioner.

[0196] Specifically, determine the set parameters of the air conditioner according to the current target operating parameters, so as to control the air conditioner. That is, convert the calculated current target wind speed value (optimal wind speed value) into the internal fan speed value, as the current set wind speed of the internal fan (that is, convert the target wind speed value into the internal fan speed value, as the set speed of the internal fan, so as to control the wind speed to reach the target wind speed value by controlling the internal fan speed), use the calculated current target temperature value (optimal temperature value) as the current set temperature, and / or use the calculated current target humidity value (optimal humidity value) as the current set humidity. The temperature and / or humidity are adjusted to approach the target value from the current state, and during the process, it is judged whether the current instantaneous thermal sensation (the human thermal comfort index PMV) falls within the human thermal comfort range.

[0197] Optionally, the control unit 130 can also control the air conditioner by the PID control method to make the human thermal comfort index PMV in the environment within the human comfort range. Specifically, perform PID control according to the deviation value between the current human thermal comfort index PMV in the environment and the human thermal comfort range (for example, the deviation value between the current human thermal comfort index PMV and 0, and the deviation values from the two end values of the human thermal comfort range), that is, adjust the air temperature t a , the air velocity v a and the air humidity H to make the human thermal comfort index PMV in the environment within the human comfort range. The PID control can be referred to Figure 5 as shown.

[0198] Figure 8 is the structural block diagram of another embodiment of the control device of the air conditioner provided by the present invention. As Figure 8 shown, the control device 100 further includes: a detection unit 140 and an adjustment unit 150.

[0199] The detection unit 140 is used to detect whether the air quality in the environment meets the preset conditions; the adjustment unit 150 is used to, if the detection unit detects that the air quality does not meet the preset conditions, change the air quality in the environment by adjusting the fresh air volume.

[0200] The preset conditions may specifically include whether the concentration of the target gas is less than a preset concentration threshold. The target gas includes more than one gas, for example, it may include carbon dioxide and / or refrigerant. Among them, the preset concentration thresholds corresponding to different gases are different. The concentration of the target gas can be detected by a concentration sensor. For example, when it is detected that the concentration of the target gas is greater than or equal to the preset concentration threshold, the fresh air volume is increased to reduce the concentration of the target gas. Adjusting the fresh air volume to change the air quality of the environment where it is located can specifically adopt PID regulation, and specifically, PID regulation can be performed according to the difference between the concentration of the target gas and the corresponding preset concentration threshold.

[0201] The present invention also provides a storage medium corresponding to the control method of the air conditioner, on which a computer program is stored. When the program is executed by a processor, the steps of any one of the foregoing methods are implemented.

[0202] The present invention also provides an air conditioner corresponding to the control method of the air conditioner, including a processor, a memory, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the steps of any one of the foregoing methods are implemented.

[0203] The present invention also provides an air conditioner corresponding to the control device of the air conditioner, including any one of the foregoing control devices.

[0204] The present invention also provides a computer program product corresponding to the control method of the air conditioner, including a computer program. When the computer program is executed by a processor, the steps of any one of the foregoing methods are implemented.

[0205] Accordingly, the solution provided by the present invention, through multi-environment parameter perception and air conditioner usage scenario recognition, dynamically adjusts the optimal environment parameters according to different usage scenarios, providing a personalized comfortable experience.

[0206] The solution provided by the present invention introduces an environmental sensitivity coefficient and dynamically adjusts the human thermal comfort range, which can ensure the user's comfort in different activity states while realizing energy-saving operation of the air conditioner.

[0207] The solution provided by the present invention adopts PMV value dynamic calculation and PID regulation technology, which can fully consider the relationship between various parameters in the environment and realize automatic optimization management of the space environment, ensuring that the user can always maintain a comfortable state during activities in the space.

[0208] The solution provided by the present invention realizes automatic control of space environment parameters according to the human thermal comfort index PMV by using PID technology, realizes intelligent management of the space environment, eliminates the need for users to manually adjust parameters, and can actively adjust the space environment parameters, improving user satisfaction.

[0209] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored on or transmitted via a computer-readable medium as one or more instructions or code. Other examples and implementations are within the scope and spirit of the present invention and the appended claims. For example, due to the nature of software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. In addition, each functional unit may be integrated in one processing unit, or each unit may exist physically separately, or two or more units may be integrated in one unit.

[0210] In several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are merely illustrative. For example, the division of the units can be a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the couplings or direct couplings or communication connections shown or discussed with each other can be through some interfaces. The indirect couplings or communication connections of units or modules can be in electrical or other forms.

[0211] The units described as separate components may or may not be physically separated. The components serving as control devices may or may not be physical units, that is, they can be located in one place or distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0212] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the related technology, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: various media such as USB flash drives, read-only memories (ROMs), random access memories (RAMs), mobile hard disks, magnetic disks, or optical discs that can store program codes.

[0213] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A control method for an air conditioner, characterized in that, including: collecting current environmental parameters of the current environment, the human body metabolic rate, and the human body clothing thermal resistance value in the current environment; determining the current human body thermal comfort index of the current environment according to the collected environmental parameters, the human body metabolic rate, and the human body clothing thermal resistance value; controlling the air conditioner to adjust the environmental parameters of the current environment according to the current usage scenario and the determined current human body thermal comfort index of the current environment, including: determining the current human body thermal comfort range of the current environment according to the current usage scenario of the air conditioner; controlling the air conditioner to adjust the environmental parameters of the current environment according to the determined current human body thermal comfort index of the current environment and the current human body thermal comfort range of the current environment.

2. The method according to claim 1, characterized in that, Collecting the human body metabolic rate in the current environment includes: identifying the human body activity category through a camera; determining the human body metabolic rate according to the human body activity category; wherein, different human body activity categories correspond to different human body metabolic rates.

3. The method according to claim 1, characterized in that Collecting the human body clothing thermal resistance value in the current environment includes: identifying the area of the human body covered by clothing and the exposed area of the human body through a camera; calculating the human body clothing thermal resistance value according to the ratio of the area of the human body covered by clothing to the exposed area of the human body; and / or identifying the human body clothing type through a camera; determining the human body clothing thermal resistance value according to the human body clothing type; wherein, different human body clothing types correspond to different human body clothing thermal resistance values.

4. The method according to any one of claims 1 to 3, characterized in that Controlling the air conditioner to adjust the environmental parameters of the current environment according to the determined current human body thermal comfort index of the current environment and the current human body thermal comfort range of the current environment includes: judging whether the current human body thermal comfort index of the current environment is within the current human body thermal comfort range; if it is judged that the current human body thermal comfort index of the current environment is within the current human body thermal comfort range, then keep the current set parameters unchanged; if it is judged that the current human body thermal comfort index is not within the current human body thermal comfort range, then determine the current target operating parameters of the air conditioner; performing corresponding control on the air conditioner according to the determined current target operating parameters of the air conditioner.

5. The method according to claim 1, characterized in that Determining the current human body thermal comfort range of the current environment according to the current usage scenario of the air conditioner includes: determining the environmental sensitivity coefficient corresponding to the current usage scenario, wherein, different usage scenarios correspond to different environmental sensitivity coefficients; determining the current human body thermal comfort range of the current environment according to the determined environmental sensitivity coefficient corresponding to the current usage scenario; wherein, the upper limit value of the current human body thermal comfort range is equal to 0 plus the environmental sensitivity coefficient corresponding to the current usage scenario, and the lower limit value of the current human body thermal comfort range is equal to 0 minus the environmental sensitivity coefficient corresponding to the current usage scenario.

6. The method according to claim 4, wherein Determining the current target operating parameters of the air conditioner includes: determining the current target wind speed value according to the distance between the human body in the current environment and the air conditioner and the pre-set relationship curve between the distance between the human body and the air conditioner and the target wind speed value; and / or Determine the current target temperature value according to the current usage scenario of the air conditioner, where different usage scenarios correspond to different proportionality coefficients and target temperature ranges; calculate the current target temperature value according to the proportionality coefficient and target temperature range corresponding to the current usage scenario; and / or, Determine the current target humidity value according to the current usage scenario of the air conditioner, where different usage scenarios correspond to different target humidity values.

7. The method according to any one of claims 1-3, characterized in that Control the air conditioner to adjust the environmental parameters of the environment according to the currently determined human thermal comfort index of the environment and the currently determined human thermal comfort range of the environment, including: Perform PID control according to the deviation value between the currently determined human thermal comfort index of the environment and the human thermal comfort range.

8. The method according to any one of claims 1 to 3, characterized in that, Further include: Detect whether the air quality of the environment meets a preset condition, where the preset condition includes whether the concentration of the target gas is less than a preset concentration threshold; If it is detected that the air quality does not meet the preset condition, change the air quality of the environment by adjusting the fresh air volume.

9. A control device for an air conditioner, characterized in that, Include: An acquisition unit for acquiring the current environmental parameters of the environment, the human metabolic rate, and the human clothing thermal resistance value in the environment; A determination unit for determining the currently determined human thermal comfort index of the environment according to the environmental parameters, the human metabolic rate, and the human clothing thermal resistance value acquired by the acquisition unit; A control unit for controlling the air conditioner to adjust the environmental parameters of the environment according to the current usage scenario and the currently determined human thermal comfort index of the environment, including: determining the currently determined human thermal comfort range of the environment according to the current usage scenario of the air conditioner; controlling the air conditioner to adjust the environmental parameters of the environment according to the currently determined human thermal comfort index of the environment and the currently determined human thermal comfort range of the environment.

10. A storage medium, characterized in that, A computer program is stored thereon, and when the program is executed by a processor, the steps of the method according to any one of claims 1-8 are implemented.

11. An air conditioner, characterized in that, It includes a processor, a memory, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the steps of the method according to any one of claims 1-8 are implemented, or it includes a control device as claimed in claim 9.

12. A computer program product, characterized in that, It includes a computer program, and when the computer program is executed by a processor, the steps of the method according to any one of claims 1-8 are implemented.

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