WO2019034125A1 - Intelligent air conditioner control method and air conditioner - Google Patents

Abstract

An intelligent air conditioner control method and an air conditioner. The intelligent air conditioner control method comprises the following steps: receiving a control command coming from a remote terminal (700) and entering an unmanned control mode; after the air conditioner enters the unmanned control mode, obtaining an indoor environment thermal image by a monocular thermal imaging camera (202) disposed on the air conditioner; uniformly dividing the received indoor environment thermal image into a plurality of grids by an air conditioner controller (300); circularly supplying air to a plurality of air supply areas corresponding to the grids according to the depths from high to low in sequence of objects corresponding to the grids, the air supply speed for each air supply area being in direct proportion to the depth of the object corresponding to the grid; and maintaining the unmanned control mode until the temperature of an air conditioned room is equal to a set temperature or exiting the unmanned control mode.

Description

Intelligent air conditioner control method and air conditioner Technical field

The present invention relates to the field of air conditioning technology, and in particular, to a smart air conditioner control method, and an air conditioner to which the control method is applied.

Background technique

The popularity of smart homes has made more and more users accustomed to remotely using terminals to control home appliances before they enter the room. Similarly, air conditioner users often establish network communication between the intelligent terminal and the air conditioner through the WIFI module, and remotely operate the air conditioner to make the human body have better comfort when entering the room. For example, the technical content disclosed in Chinese Patent Application No. 201410632315.8.

This adjustment uses a single control logic. In fact, the user does not have an intuitive feeling about the actual temperature and running time of the air-conditioned room. Usually, the timing operation and the set temperature of the air-conditioned room are set by experience, which makes it easy for the actual entering the air-conditioned room to feel overheated or too cold. . This aspect increases the energy consumption of the air conditioner, and on the other hand does not achieve the purpose of improving comfort.

Summary of the invention

In order to solve the problem that the prior art user remotely sets the set temperature and the running time deviation of the unmanned air-conditioned room to be large and is not easy to operate, the present invention provides a control method of the smart air conditioner.

A smart air conditioner control method includes the following steps:

Receiving control commands from the remote terminal and entering the unmanned control mode;

After entering the unmanned control mode, the monocular thermal imaging camera disposed on the air conditioner acquires an indoor environmental thermal image;

The air conditioner controller divides the received indoor environment thermal image into a plurality of grids, and circulates air to the plurality of air supply regions corresponding to the grid according to the depth of the object corresponding to the grid from high to low, each The air supply wind speed in a supply air area is proportional to the depth of the object corresponding to the grid, and the unmanned control mode is maintained until the air-conditioned room temperature is equal to the set temperature or exits the unmanned control mode.

Further, in the unmanned control mode, the monocular thermal imaging camera disposed on the air conditioner generates an indoor ambient thermal image for each imaging cycle.

Further, when the monocular thermal imaging camera detects a person in the air-conditioned room, the unmanned control mode is exited, and the monocular thermal imaging camera is turned off to enter the human comfort control mode.

Further, in the human body comfort control mode:

Collecting the real-time clothing body surface temperature Ts of the human body in the air-conditioned room;

Collecting the real-time building internal surface temperature Tq in the air-conditioned room;

Collecting the real-time ambient temperature Th in the air-conditioned room;

Calculate real-time human comfort C’,

C'=h _r ·(T _s -T _q )+h _c ·(T _s -T _h ), where hr and hc are constants, where hr is the radiant thermal conductivity and hc is the convective thermal conductivity;

Controlling the refrigeration cycle action causes the real-time human comfort C' to be equal to the standard human comfort C that the human body feels comfortable in the air-conditioned room.

Further, the air conditioner controller stores an association relationship between the degree of human comfort deviation and the human body state, and assigns an operation control mode to each human body state;

The air conditioner controller calculates the difference between the real-time human comfort C' and the standard human comfort C, and determines the degree of real-time human comfort deviation according to the difference, determines the human body state according to the association relationship, and invokes the corresponding operation control. The mode controls the air conditioning system to operate in the operational control mode such that the real-time human comfort C' is equal to the standard human comfort C.

Further, if the difference between the real-time human comfort C' and the standard human comfort C is in the first interval, the real-time human comfort deviation is high, and the human body state is uncomfortable, corresponding to the first operational control mode;

If the difference between the real-time human comfort C' and the standard human comfort C is in the second interval, the real-time human comfort deviation is high, and the human body state is relatively uncomfortable, corresponding to the second operational control mode;

If the difference between the real-time human comfort C' and the standard human comfort C is in the third interval, the real-time human comfort deviation is low, and the human body state is relatively comfortable, corresponding to the third operational control mode;

The thresholds of the first interval, the second interval, and the third interval are sequentially decreased, and the upper limit of the compressor target operating frequency in the first operation control mode, the second operation control mode, and the third operation control mode are sequentially decreased.

Further, if the control air conditioning system operates according to the third operation control mode, the real-time human comfort C is resampled after the first detection period after the target operating frequency of the third operational control mode is reached; if the air conditioning system is controlled Performing according to the second operation control mode, re-sampling the real-time human comfort C after the second detection period after reaching the target operating frequency of the second operational control mode, if the air conditioning system is controlled according to the first operational control If the mode is running, the real-time human comfort C is re-sampled after the third detection period after the target operating frequency of the first operational control mode is reached, wherein the durations of the first detection period, the second detection period, and the third detection period gradually Decrement.

Further, the air conditioner controller stores an association relationship between the degree of human comfort deviation and the human body state, and assigns an operation control mode to each human body state;

The air conditioner operates according to the working mode set by the user; the air conditioner controller calculates the trend of the real-time human comfort C′ in two consecutive judgment periods, and if the two consecutive judgment periods, the real-time human comfort C′ changes the same trend. The air conditioner controller calculates a rate of change of the real-time human comfort C' relative to the standard human comfort C at the end of the last judgment period, and determines a degree of real-time human comfort deviation according to the change rate, and determines according to the relationship The human body state, and the corresponding operation control mode is invoked, and the air conditioning system is controlled to operate according to the operation control mode, so that the real-time human comfort C' is equal to the standard human comfort C.

Preferably, the inner surface temperature of the building is an average value of a surface temperature of the wall facing the air outlet of the air conditioner or an inner surface temperature of the inner wall of all the inner walls of the air-conditioned room.

The control method disclosed by the invention can eliminate the interference of humidity in the detection of human comfort, provide a human comfort parameter that can be used by the air conditioning control system, and control the operation of the air conditioner to maintain the comfort of the human body at the standard human comfort. The air conditioning effect is good.

An air conditioner adopts a smart air conditioner control method, and the control method comprises the following steps:

Receiving control commands from the remote terminal and entering the unmanned control mode;

After entering the unmanned control mode, the monocular thermal imaging camera disposed on the air conditioner acquires an indoor environmental thermal image;

The air conditioner controller divides the received indoor environment thermal image into a plurality of grids, and circulates air to the plurality of air supply regions corresponding to the grid according to the depth of the object corresponding to the grid from high to low, each The air supply wind speed in a supply air area is proportional to the depth of the object corresponding to the grid, and the unmanned control mode is maintained until the air-conditioned room temperature is equal to the set temperature or exits the unmanned control mode.

The air conditioner disclosed by the invention has the advantage of being intelligent.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a flow chart of a first embodiment of a smart air conditioner control method according to the present invention;

2 is a flow chart of a human body comfort control mode in the smart air conditioner shown in FIG. 1;

3 is a diagram showing an example of an indoor environmental thermal image having a grid in the smart air conditioner control method shown in FIG. 1;

4 is a schematic block diagram of an embodiment of a smart air conditioner disclosed in the present invention;

Figure 5 is a schematic block diagram of another embodiment of the disclosed smart air conditioner of the present invention;

6 is a schematic flowchart of an embodiment of a method for controlling a smart air conditioner disclosed in the present invention;

FIG. 7 is a schematic flowchart of another embodiment of a method for controlling a smart air conditioner disclosed in the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that the terms "first", "second" and the like in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or order. It is to be understood that the data so used may be interchanged, where appropriate, so that the embodiments of the invention described herein can be practiced in the order of those which are illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

It is further noted that the steps illustrated in the flowchart of the figures may be performed in a computer system such as a set of computer executable instructions, and although the logical order is illustrated in the flowchart, in some cases The steps shown or described may be performed in an order different from that herein.

Referring to Fig. 4, the air conditioner 100 may generally include an indoor unit 10 and an outdoor unit 20, and an electrical connection is formed between the indoor unit 10 and the outdoor unit 20. The indoor unit 10 and the outdoor unit 20 constitute a vapor compression refrigeration cycle system to achieve cooling and heating of the indoor environment. Specifically, the outdoor unit 20 is provided with a compression refrigeration system such as a compressor 400 and an outdoor heat exchanger, and the indoor unit 10 is provided with a compression refrigeration structure such as an indoor heat exchanger 12. The working principle of the vapor compression refrigeration cycle system is a well-known technique of those skilled in the art, and will not be described herein. The indoor unit 10 may be provided with an air outlet 11 for air supply. The arrows in FIG. 4 are the general air blowing directions of the indoor unit 10 in one embodiment, and the indoor units 10 are W1, W2, W3, and W4. The wall inside the room. The indoor wall surface may be composed of four straight wall surfaces, or may be composed of a single curved wall surface, or may be composed of any other number of walls of any shape. The indoor unit 10 may be a cabinet type and disposed at any position in the room, or may be wall-mounted and disposed on any wall in the room.

Referring to FIG. 5, the air conditioner 100 may further include an infrared sensor 201, a camera 202, a wireless communication module 203, and a controller 300. In some embodiments, the infrared sensor 201 can also be other temperature sensing detection devices, which can be selected by those skilled in the art as needed. The number of infrared sensors 201 may be plural. The wireless communication module 203 can communicate with the remote terminal 700.

FIG. 1 is a flowchart of a first embodiment of a smart air conditioner control method according to the present invention. As shown in the figure, the following steps are specifically included:

Step S101, receiving a control command from the remote terminal 700, and entering an unmanned control mode.

Specifically, in the above steps, the air conditioner is connected to the network in advance through a WIFI module or a similar wireless communication module 203 provided in the air conditioner, and can receive a remote control command from the matched mobile terminal, and the mobile terminal can It is a mobile phone, a tablet, and the like. The use of the mobile terminal output control command to control the operation of the air conditioner has been applied to products sold in the market, and is not the protection focus of the present invention, and will not be described herein. In the present embodiment, after receiving the control command from the remote terminal 700, the air conditioner automatically enters the unmanned control mode.

Step S102, after entering the unmanned control mode, the monocular thermal imaging camera 202 disposed on the air conditioner acquires the indoor environmental thermal image.

After entering the unmanned control mode, the monocular thermal imaging camera 202 disposed on the air conditioner acquires an indoor ambient thermal image. The monocular thermal imaging camera 202 uses a camera 202 to capture and find the object to be measured in the captured image, and automatically calculates the distance between the object, such as furniture, walls, etc., and the air conditioner, further according to distance, heat radiation, visible light, etc. A combination of various parameters calculates a thermal image according to a predetermined algorithm. The simplest algorithm for generating a thermal image is to superimpose the light image generated by the monocular thermal imaging camera 202 and the infrared image. The light image includes distance information between the object in the air-conditioned room and the air conditioner, and the thermal image includes objects in the air-conditioned room. Thermal radiation information. The imaging algorithm of the monocular thermal imaging camera 202 is common in existing thermal imagers and is not a protective focus of the present invention. In the thermal image, the depth of the object whose heat radiation is far from the reference value is higher than the air conditioner, and the depth of the object whose heat radiation is lower than the reference value is lower than the air conditioner. In the thermal image, the depth of the object is represented by the color depth, and at the same time, it is preferable that blue represents low thermal radiation and red represents high thermal radiation.

Step S103, the air conditioner controller 300 divides the received indoor environment thermal image into a plurality of grids, and circulates the air to the plurality of air supply regions corresponding to the grid according to the grid depth from high to low, each of which The air supply wind speed in the air supply area is proportional to the mesh depth.

As shown in the figure, after receiving the indoor environment thermal image, the air conditioner controller 300 divides the thermal image into M*N grids according to the setting parameters. As shown in Fig. 3, the thermal image is divided into 40 grids according to the parameters of 8*5. The number of grids will have a certain degree of influence on the accuracy of the air conditioning. An alternative method is to set the parameters to be fixed. Another preferred mode is that the values of M and N are selected according to the relationship between the rated power of the air conditioner and the standard cooling capacity corresponding to the air-conditioned room area. On the one hand, there are several sets of M and N setting values corresponding to the rated power of the air conditioner, such as 1P, 1.5P, and 2P respectively corresponding to the values of different settings of M and N. On the other hand, according to the standard cooling capacity of 200 W per square meter, the corresponding M and N take 1 respectively, and for every 2 square meters of the room area, M and N are respectively increased by 1. When the rated power of the air conditioner is higher than the standard cooling capacity corresponding to the air-conditioned room area, the air-conditioning capability is strong, and the grid is set by calling the set values of M and N corresponding to the rated power of the air conditioner. When the rated power of the air conditioner is lower than the standard cooling capacity corresponding to the air-conditioned room area, the air-conditioning capability is weak, and the values of M and N corresponding to the standard cooling capacity are called, thereby achieving the heat of the indoor environment under the condition of the current air-conditioning capacity and actual use demand. The highest precision division of the image. The air conditioner controller 300 sorts the grid from the high to the bottom according to the depth of the object corresponding to the grid, and circulates the air to the plurality of air supply regions corresponding to the grid. The blowing wind speed of each air supply area is proportional to the depth of the object corresponding to the grid. As shown in Figure 3, the D*1 area has the largest mesh depth and the largest wind speed. Preferably, the air supply duration for each air supply area is maintained at 1 minute.

In step S104, the air conditioner maintains the unmanned control mode until the air-conditioned room temperature is equal to the set temperature, or someone enters the automatic exit unmanned control mode. The set temperature is preferably 26 ° C under refrigeration conditions and 22 ° C under heating conditions. In the unmanned mode, the operating frequency of the compressor 400 is controlled using a prior art PID algorithm.

Through the above control method, before the user prepares to return to the air-conditioned room, only one button operation is required, and the air conditioner automatically controls the air supply according to the thermal image of the air-conditioned room, so that the temperature distribution of the air-conditioned room is balanced and comfortable, and the energy of the air conditioner is saved. Consumption.

Under the action of the air conditioner, the thermal image in the room also changes. Therefore, preferably, in the unmanned control mode, the monocular thermal imaging camera 202 disposed on the air conditioner generates an indoor environmental thermal image for each imaging cycle. . The imaging period is preferably 30 minutes. Referring to steps S503 to S507 in FIG. 6, in order to protect user privacy, when the monocular thermal imaging camera 202 detects a person in the air-conditioned room, the unmanned control mode is automatically exited. Due to the set temperature of the air-conditioned room and the air supply speed in the unmanned control mode, the angle is set by itself. When there is someone in the air-conditioned room, it automatically enters the human comfort control mode. In this way, even if the air temperature adjusted by the unmanned control mode and the user's body feeling are slightly mismatched when switching to the human body comfort control mode, the user does not need to manually adjust, and the air conditioner automatically adjusts in the human comfort control mode.

As shown in FIG. 2, the human comfort control mode of the control method of the present invention does not depend on the SSD data model for the control of human comfort. Specifically, the human comfort control mode includes the following steps:

First, the real-time body surface temperature Ts of the user in the air-conditioned room is collected (as shown in step S201). The human body real-time dressing body surface temperature Ts can be detected by an infrared sensor provided on the air conditioner. The real-time building inner surface temperature Tq in the air-conditioned room is collected (as shown in step S202), and the inner surface temperature Tq of the building may be detected by a temperature sensor directly contacting the wall surface, the top surface, and the ground, or an infrared sensor or heat may be used. The imager performs the test. The inner surface temperature Tq may be the wall surface temperature of the air conditioner installation contact, the surface temperature of the wall surface facing the air outlet of the air conditioner, or the temperature of the top wall or the temperature of the ground. For home users, other factors such as the temperature of the room in the upper and lower neighborhoods and the change in the sunshine time caused by the orientation of the building may also affect the temperature of the inner surface of the air-conditioned room. Therefore, the real-time building inner surface temperature Tq is preferably an average value of the inner surface temperatures of all the inner walls of the air-conditioned room. The real-time ambient temperature Th in the air-conditioned room is further collected (as shown in step S203), and the real-time ambient temperature Th is preferably the intake air temperature of the air-conditioning return air port 13. The human body real-time clothing body surface temperature Ts, the real-time building internal surface temperature Tq, and the real-time ambient temperature Th in the air-conditioned room have the same sampling frequency. The sampling frequency is preferably 1 time/minute. The sampling frequency can be increased or decreased moderately.

The real-time human body comfort C' is calculated using the real-time body surface temperature Ts, the real-time ambient temperature Th, and the real-time building internal surface temperature Tq (as shown in step S204), C'=h _r ·(T _s -T _q ) +h _c ·(T _s -T _h ), where hr and hc are constants, hr is the radiant thermal conductivity, and hc is the convective thermal conductivity. Generally, the value of hr is between 4W/(m ² ·°C) and 5W/(m ² ·°C), and the value of hc is from 3W/(m ² ·°C) to 4W/(m ² ·°C). )between. The radiant thermal conductivity and the convective thermal conductivity are typically set and stored in the controller 300 of the air conditioner for retrieval at any time. Under normal circumstances, the human body real-time clothing body surface temperature Ts, real-time ambient temperature Th and real-time building internal surface temperature Tq does not exceed 1 degree Celsius.

After the human body comfort is obtained, the refrigeration cycle action is controlled (as shown in step S205) so that the real-time human comfort C' is equal to the standard human comfort C which the human body feels comfortable in the air-conditioned room. The value range of the standard human comfort C is generally (-0.5, 0.5). The basic principle of control is to timely meet the requirement of eliminating the deviation between the real-time human comfort C' and the standard human comfort C by adjusting the refrigerant circulation amount of the compressor 400 and the refrigerant flow rate entering the indoor heat exchanger.

The air conditioner controller 300 stores an association relationship between the degree of human comfort deviation and the human body state. For example, the standard human comfort is 0. When the deviation is within the range of (2.5, 3), the real-time human comfort deviation is high, and the human body state is uncomfortable. When the deviation is within the range of (1.5, 2.5), the real-time human comfort deviation is higher, and the human body state is more uncomfortable. When the deviation is within the range of (0.5, 1.5), the real-time human comfort deviation is low, and the human body state is relatively comfortable. When the deviation is within the range of (0, 0.5), the human body state is comfortable. Corresponding to the uncomfortable, uncomfortable and comfortable deviation value range of the human body state, that is, the first interval, the second interval and the third interval corresponding to the one-to-one correspondence, the thresholds of the first interval, the second interval and the third interval are successively decreased and mutually Do not overlap to avoid confusion in subsequent controls. The deviation values of the first interval, the second interval, and the third interval may be adjusted according to the type of user in the air-conditioned room. For example, for a user who is more sensitive to the general user's physical condition such as a kindergarten, a school, or a nursing home, each interval range may be The length is reduced, and the upper threshold of the first interval is lowered to improve user comfort.

In order to effectively eliminate the deviation between the real-time human comfort C' and the standard human comfort C, an air-conditioner controller 300 assigns an operation control mode to each of the human body states. If the human body state is uncomfortable, the first operational control mode is assigned accordingly. If the human body state is uncomfortable, the second operational control mode is assigned. If the human body is more comfortable, the third operational control mode is assigned. The upper limit of the target operating frequency of the compressor 400 in the first operational control mode, the second operational control mode, and the third operational control mode is sequentially decreased. If the human body is in a comfortable state, the air conditioner does not operate.

The air conditioner controller 300 samples the real-time body surface temperature Ts of the human body in the air-conditioned room according to the set sampling frequency, the real-time building surface temperature Tq and the real-time ambient temperature Th, and calculates the real-time human body comfort C', thereby further calculating the real-time human body comfort. The difference between the degree C' and the standard human comfort C, determine the numerical interval to which the difference belongs, and obtain the real-time human body state according to the relationship between the deviation value interval and the human body state, and call the corresponding operational control according to the human body state. The mode controls the air conditioning system to operate according to the operation control mode, so that the deviation between the real-time human comfort C' and the standard human comfort C is gradually reduced until the real-time human comfort C' is equal to the standard human comfort C, thereby the ordinary air conditioner The size of the indoor load on which the system is operated is converted into true real-time human comfort, while maintaining continuous adjustment of the comfort of the human body, the compressor 400 is continuously operated at different rotational speeds, reducing the frequent start and stop of the compressor 400. The irreversible loss caused.

In order to achieve the purpose of energy saving, if the control air conditioning system operates according to the real-time human comfort C' according to the third operational control mode during the first detection and control process after the power-on, the target frequency of the compressor 400 is compared in the operational control mode. Low, small deviation, low energy consumption can eliminate the deviation and control the stable operation of the air conditioner, and the load of the entire air-conditioned room is relatively stable. Under stable conditions, the real-time human comfort C' is again sampled after the first detection period after reaching the target operating frequency of the third operational control mode. If the control air conditioning system operates according to the real-time human comfort C' according to the second operational control mode during the first detection and control process after the power-on, the target frequency of the compressor 400 is higher and the deviation is larger in the operational control mode. Moderate energy consumption can eliminate the deviation and control the stable operation of the air conditioner. The load of the entire air-conditioned room fluctuates but the fluctuation is not large. Under this condition, the human comfort C' is again sampled after the second detection period after the target operating frequency of the second operational control mode is reached. If the control air conditioning system operates according to the real-time human comfort C' according to the first operational control mode during the first detection and control process after the power-on, the target frequency of the compressor 400 is high and the deviation is large in the operation control mode. The large energy consumption can eliminate the deviation and control the stable operation of the air conditioner, and the fluctuation of the load of the entire air-conditioned room is large. Under the condition of large fluctuation, the real-time human comfort C' is again sampled after the third detection period after reaching the target operating frequency of the first operational control mode. The durations of the first detection period, the second detection period, and the third detection period are gradually decreased, thereby reducing the frequency of detection and control when the condition of the air-conditioned room is stable, maintaining a lower level of control, when the load of the air-conditioned room fluctuates but When the fluctuation is not large, it is guaranteed to detect the operating frequency and the control action frequency to a certain extent, and maintain the moderate level control. When the load fluctuation of the air-conditioned room is large, the high frequency detection action and the control action are maintained, and the high level control is maintained. It should be noted that the above-mentioned "lower", "higher" and "high" of the target frequency of the compressor 400 do not mean that the absolute value of the target frequency is lower, higher or higher, but compares three operating modes. The result of the first frequency up-conversion target frequency. After the compressor 400 is stopped, the above control process is also performed when starting again.

It should be further explained that, when calculating the deviation, the sign of the data can be retained, and an independent storage unit is reserved in the controller 300 of the air conditioner to store the sign bit. The symbol represents the user's heat and cold, and directly controls the four-way reversing valve to control the air conditioner in the cooling or cooling mode. For example, the standard human comfort is 0. When the deviation is within the range of (-3, -2.5), the human body state is very cold. When the deviation is within the range of (-2.5, -1.5), the human body state is cold. When the deviation is within the range of (-1.5, -0.5), the human body state is slightly cold, and the above three numerical intervals correspond to the first operational control mode, the second operational control mode, and the third operation under heating conditions. Control mode. Correspondingly, when the deviation is within the range of (2.5, 3), the human body state is very hot. When the deviation is within the range of (1.5, 2.5), the human body state is hot. When the deviation is in the range of (0.5, 1.5), the human body state is slightly hot, and the above three numerical intervals correspond to the first operational control mode, the second operational control mode, and the third operational control mode in the cooling condition.

Alternatively, referring to step S603 to step S609 in FIG. 7, the air conditioner first operates in accordance with a working mode set by the user, and the air conditioner controller 300 calculates real-time human comfort C' in two consecutive determination periods. The trend relative to the standard human comfort C. For example, if the judgment period is 1 minute, the air conditioner controller 300 determines the trend of the real-time human comfort C′ in two determination periods. If the value of the human comfort C′ is continuously increased, the comfort is obvious. The deterioration trend, the air conditioner controller 300 automatically enters a control mode based on human comfort. The air conditioner controller 300 calculates the rate of change of the real-time human comfort C' with respect to the standard human comfort at the end of the last judgment period, and determines the degree of real-time human comfort deviation according to the rate of change. The human body state is determined according to the association relationship, and the corresponding operation control mode is invoked to control the air conditioning system to operate in the operation control mode such that the real-time human comfort C' is equal to the standard human comfort C.

Specifically, if the rate of change of the real-time human comfort C' and the standard human comfort C is in the first interval, the real-time human comfort deviation is high, and the human body state is uncomfortable, corresponding to the first operational control mode, the first interval Can be set to (500%, 600%);

If the rate of change of the real-time human comfort C' and the standard human comfort C is in the second interval, the real-time human comfort deviation is higher, the human body state is more uncomfortable, corresponding to the second operational control mode, and the second interval can be set. (300%, 500%);

If the rate of change of the real-time human comfort C' and the standard human comfort C is in the third interval, the real-time human comfort deviation is low, the human body state is relatively comfortable, and the third operational control mode is assigned, and the third interval can be set. (100%, 300%);

The thresholds of the first interval, the second interval, and the third interval are sequentially decreased, and the upper limit of the target operating frequency of the compressor 400 in the first operational control mode, the second operational control mode, and the third operational control mode are sequentially decreased.

The rate of change refers to the percentage of the difference between the real-time human comfort C' and the standard human comfort C as a percentage of the standard human comfort C at the end of the last judgment period. For example, the standard value C is 0.5 in the set standard human comfort value interval, such as the real-time human comfort C' in the first determination period is 0.7, and the real-time human comfort C in the second determination period. 'With 1.2, enter the control mode based on human comfort. The rate of change = (1.2-0.5) / 0.5 = 140%, the human body state is more comfortable, corresponding to the third operational control mode, and the air conditioning system is controlled until the real-time human comfort C' is equal to the standard human comfort C.

In order to achieve the purpose of energy saving, if the control air conditioning system operates according to the real-time human comfort C' according to the third operational control mode during the first detection and control process after the power-on, the target frequency of the compressor 400 is compared in the operational control mode. Low, small deviation, low energy consumption can eliminate the deviation and control the stable operation of the air conditioner, and the load of the entire air-conditioned room is relatively stable. Under stable conditions, the real-time human comfort C' is again sampled after the first detection period after reaching the target operating frequency of the third operational control mode. If the control air conditioning system operates according to the real-time human comfort C' according to the second operational control mode during the first detection and control process after the power-on, the target frequency of the compressor 400 is higher and the deviation is larger in the operational control mode. Moderate energy consumption can eliminate the deviation and control the stable operation of the air conditioner. The load of the entire air-conditioned room fluctuates but the fluctuation is not large. Under this condition, the human comfort C' is again sampled after the second detection period after the target operating frequency of the second operational control mode is reached. If the control air conditioning system operates according to the real-time human comfort C' according to the first operational control mode during the first detection and control process after the power-on, the target frequency of the compressor 400 is high and the deviation is large in the operation control mode. The large energy consumption can eliminate the deviation and control the stable operation of the air conditioner, and the fluctuation of the load of the entire air-conditioned room is large. Under the condition of large fluctuation, the real-time human comfort C' is again sampled after the third detection period after reaching the target operating frequency of the first operational control mode. The durations of the first detection period, the second detection period, and the third detection period are gradually decreased, thereby reducing the frequency of detection and control when the condition of the air-conditioned room is stable, maintaining a lower level of control, when the load of the air-conditioned room fluctuates but When the fluctuation is not large, it is guaranteed to detect the operating frequency and the control action frequency to a certain extent, and maintain the moderate level control. When the load fluctuation of the air-conditioned room is large, the high frequency detection action and the control action are maintained, and the high level control is maintained. It should be noted that the above-mentioned "lower", "higher" and "high" of the target frequency of the compressor 400 do not mean that the absolute value of the target frequency is lower, higher or higher, but compares three operating modes. The result of the first frequency up-conversion target frequency. After the compressor 400 is stopped, the above control process is also performed when starting again.

The present invention also discloses an air conditioner using the smart air conditioner control method disclosed in the above embodiment. For the specific steps of the control method, refer to the detailed description of the above embodiment, and it is not described herein again that the air conditioner using the above intelligent air conditioner control method has the same technical effect.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

A smart air conditioner control method, comprising the steps of: Receiving control commands from the remote terminal and entering the unmanned control mode; After entering the unmanned control mode, the monocular thermal imaging camera disposed on the air conditioner acquires an indoor environmental thermal image; The air conditioner controller divides the received indoor environment thermal image into a plurality of grids, and circulates air to the plurality of air supply regions corresponding to the grid according to the depth of the object corresponding to the grid from high to low, each The air supply wind speed in a supply air area is proportional to the depth of the object corresponding to the grid, and the unmanned control mode is maintained until the air-conditioned room temperature is equal to the set temperature or exits the unmanned control mode. The intelligent air conditioner control method according to claim 1, wherein in the unmanned control mode, the monocular thermal imaging camera provided on the air conditioner generates an indoor environmental thermal image for each imaging period. The intelligent air conditioner control method according to claim 2, wherein when the monocular thermal imaging camera detects a person in the air-conditioned room, exiting the unmanned control mode, the monocular thermal imaging camera is turned off, and the human body comfort is entered. Control mode. The intelligent air conditioner control method according to claim 3, wherein in the human body comfort control mode: Collecting the real-time clothing body surface temperature Ts of the human body in the air-conditioned room; Collecting the real-time building internal surface temperature Tq in the air-conditioned room; Collecting the real-time ambient temperature Th in the air-conditioned room; Calculate real-time human comfort C’, C'=h _r ·(T _s -T _q )+h _c ·(T _s -T _h ), where hr and hc are constants, where hr is the radiant thermal conductivity and hc is the convective thermal conductivity; Controlling the refrigeration cycle action causes the real-time human comfort C' to be equal to the standard human comfort C that the human body feels comfortable in the air-conditioned room. The intelligent air conditioner control method according to claim 4, wherein: The air conditioner controller stores an association relationship between the degree of human comfort deviation and the human body state, and assigns an operation control mode to each human body state; The air conditioner controller calculates the difference between the real-time human comfort C' and the standard human comfort C, and determines the degree of real-time human comfort deviation according to the difference, determines the human body state according to the association relationship, and invokes the corresponding operation control. The mode controls the air conditioning system to operate in the operational control mode such that the real-time human comfort C' is equal to the standard human comfort C. A smart air conditioner control method according to claim 5, wherein If the difference between the real-time human comfort C' and the standard human comfort C is in the first interval, the real-time human comfort deviation is high, and the human body state is uncomfortable, corresponding to the first operational control mode; If the difference between the real-time human comfort C' and the standard human comfort C is in the second interval, the real-time human comfort deviation is high, and the human body state is relatively uncomfortable, corresponding to the second operational control mode; If the difference between the real-time human comfort C' and the standard human comfort C is in the third interval, the real-time human comfort deviation is low, and the human body state is relatively comfortable, corresponding to the third operational control mode; The thresholds of the first interval, the second interval, and the third interval are sequentially decreased, and the upper limit of the compressor target operating frequency in the first operation control mode, the second operation control mode, and the third operation control mode are sequentially decreased. A smart air conditioner control method according to claim 6, wherein If the control air conditioning system operates according to the third operational control mode, re-sampling the real-time human comfort C after the first detection period after reaching the target operational frequency of the third operational control mode; if the air conditioning system is controlled as described When the second operation control mode is running, the real-time human comfort C is resampled after the second detection period after the target operating frequency of the second operational control mode is reached, and if the air conditioning system is controlled to operate according to the first operational control mode, Then, the real-time human comfort C is re-sampled after the third detection period after the target operating frequency of the first operational control mode is reached, wherein the durations of the first detection period, the second detection period, and the third detection period are gradually decreased. The human body comfort-based air conditioner control method according to claim 4, wherein The air conditioner controller stores an association relationship between the degree of human comfort deviation and the human body state, and assigns an operation control mode to each human body state; The air conditioner operates according to the working mode set by the user; the air conditioner controller calculates the trend of the real-time human comfort C′ in two consecutive judgment periods, and if the two consecutive judgment periods, the real-time human comfort C′ changes the same trend. The air conditioner controller calculates a rate of change of the real-time human comfort C' relative to the standard human comfort C at the end of the last judgment period, and determines a degree of real-time human comfort deviation according to the change rate, and determines according to the relationship The human body state, and the corresponding operation control mode is invoked, and the air conditioning system is controlled to operate according to the operation control mode, so that the real-time human comfort C' is equal to the standard human comfort C. The intelligent air conditioner control method according to claim 1, wherein the inner surface temperature of the building is a surface temperature of a wall facing the air outlet of the air conditioner; and the inner surface temperature of the building is all the air-conditioned room The average of the inner surface temperatures of the inner walls. An air conditioner characterized by employing the smart air conditioner control method according to claim 1.

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