A centralized control system

Abstract

The present invention discloses a centralized control system, comprising: a multi-split air conditioner having at least one functional mode of a cooling mode and a floor heating mode; a fresh air unit capable of adjusting the temperature and humidity of indoor air; a centralized control screen connected to the multi-split air conditioner and the fresh air unit via a communication bus; based on the functional mode of the multi-split air conditioner, at least one scene mode corresponding to the functional mode is displayed on the centralized control screen, and when the scene mode takes effect, the centralized control screen controls the operating states of the multi-split air conditioner and the fresh air unit under the scene mode. The present invention realizes scene control based on the centralized control screen.

Description

Technical Field

[0001] The present invention relates to the field of centralized control technology, and in particular to a centralized control system based on a centralized control screen. Background Art

[0002] The existing centralized control system includes a centralized controller, a communication module (such as a gateway device) for information exchange, a cloud platform for sending, receiving and managing data, and a mobile terminal for regulating and viewing the status of connected devices (such as air-conditioning units). The status parameters of the connected devices can be collected and sent to the centralized controller, and the connected devices receive control instructions issued by the centralized controller.

[0003] When the centralized controller is manifested as a digital screen, centralized control screen, etc., it usually has scene control function, but the control logic of the connected devices is basically implemented on the cloud platform or indoor unit.

[0004] If the scene is executed on the cloud platform, it is necessary to rely on the network. The scene control cannot be achieved when the network is disconnected. If the scene is executed on the indoor unit, not only the data needs to be communicated between the indoor units, but once the algorithm changes, the indoor units need to be upgraded on a large scale, which makes the operation process complicated.

[0005] As a result, localized control of scenes can be achieved on the centralized control screen, which is independent of the network and can realize one-to-many centralized control. Summary of the invention

[0006] The present invention provides a centralized control system, which displays at least one scene mode corresponding to the functional mode of a multi-split air conditioner on a centralized control screen, and controls the operating status of the connected devices in the scene based on the scene mode, thereby realizing scene control based on the centralized control screen.

[0007] The present application provides a centralized control system, comprising:

[0008] A multi-split air conditioner having at least one functional mode of a cooling mode and a floor heating mode;

[0009] Fresh air unit, which can adjust the temperature and humidity of indoor air;

[0010] A centralized control panel, which is connected to the multi-split air conditioner and the fresh air unit via a communication bus;

[0011] Based on the functional mode of the multi-split air conditioner, at least one scene mode corresponding to the functional mode is displayed on the centralized control screen, and when the scene mode takes effect, the centralized control screen controls the operating status of the multi-split air conditioner and the fresh air unit under the scene mode.

[0012] The centralized control system of the present application can display at least one scene mode on the centralized control screen based on the functional mode of the multi-split air conditioner. When the scene mode takes effect, it can control the operating status of the connected device to achieve localized and / or remote scene control based on the centralized control screen to meet various user needs. In addition, when performing localized control, it does not need to rely on the network, and the control is more flexible. The scene mode control on the centralized control screen is independent of the connected device and is not affected by the connected device, making it easy to achieve one-to-many control.

[0013] In some embodiments of the present application, a first scene mode may be generated for a multi-split air conditioner and a fresh air unit having a cooling mode;

[0014] In this scene mode, the multi-split air conditioner has a cooling mode and operates in the cooling mode;

[0015] The centralized control panel obtains the lowest set temperature of the indoor unit of the turned-on multi-split air conditioner or obtains the set temperature set by the user as the set temperature of the fresh air unit, and obtains the set humidity set by the user as the set humidity of the fresh air unit.

[0016] In this way, in the first scene mode, both cooling and dehumidification can be achieved to meet the user's comfortable experience.

[0017] In some embodiments of the present application, a second scene mode may be generated for a multi-split air conditioner and a fresh air unit including a floor heating mode;

[0018] In this scene mode, the multi-split air conditioner has a floor heating mode and operates in the floor heating mode;

[0019] The centralized control panel obtains the highest set temperature of the indoor unit of the turned-on multi-split air conditioner or obtains the set temperature set by the user as the set temperature of the fresh air unit, and obtains the set humidity set by the user as the set humidity of the fresh air unit.

[0020] In this way, in the second scene mode, both floor heating and humidification can be achieved to meet the user's comfortable experience.

[0021] In some embodiments of the present application, a third scene mode may be generated for a multi-split air conditioner and a fresh air unit including at least a cooling mode and a floor heating mode;

[0022] In this scene mode, the multi-split air conditioner has at least a cooling mode and a floor heating mode;

[0023] The centralized control panel obtains the average set temperature of the indoor units of the powered-on multi-split air conditioners or obtains the set temperature set by the user as the set temperature of the fresh air unit, and obtains the set humidity set by the user as the set humidity of the fresh air unit;

[0024] The centralized control panel sets the operating mode of the multi-split air conditioner based on the room temperature in the room, the seasonal temperature setting threshold and the outdoor temperature.

[0025] In this way, in this scenario mode, the centralized control panel realizes scenario-based control of the fresh air unit, and based on the room temperature in the room, seasonal temperature setting threshold and outdoor temperature, realizes scenario-based control of the multi-split air conditioner.

[0026] The fresh air unit has a humidity regulation function. In the first scene mode described above, dehumidification is performed while cooling. The dehumidification here is ordinary dehumidification. In special geographical locations (for example, the rainy season in the south), deep dehumidification is required because it is too humid.

[0027] In some embodiments of the present application, when the centralized control screen is connected to the network and to the cloud platform through a gateway device, the centralized control screen obtains location information, and when the location information is within the geographical location to be deeply dehumidified, the centralized control screen enters the deep dehumidification judgment.

[0028] In some embodiments of the present application, the determination of whether the centralized control panel enters deep dehumidification is specifically to obtain multiple determination conditions, including:

[0029] Get the current month and determine whether the current month is within the range of months to be deeply dehumidified;

[0030] Acquire the outdoor temperature, and determine whether the outdoor temperature continues for a first preset time period when reaching an upper limit value of a first preset temperature threshold;

[0031] Get the current weather conditions and determine whether it is rainy;

[0032] Obtaining outdoor humidity, and determining whether the outdoor humidity continues for a second preset time period after reaching an upper limit value of a first preset humidity threshold;

[0033] When at least two of the multiple determination conditions are met, the centralized control panel sets the fresh air unit to enter deep dehumidification.

[0034] In some embodiments of the present application, in the cooling season, when the actual indoor temperature and the set temperature differ greatly, the outdoor unit outputs at a higher capacity, and when the indoor temperature is close to the set temperature, the outdoor unit enters a high sensible heat mode to reduce power consumption.

[0035] High sensible heat control is an operating state of the outdoor unit. After entering the high sensible heat state, the outdoor unit is energy-saving. For example, at this time, the evaporation pressure is increased by reducing the compressor frequency, thereby increasing the evaporation temperature.

[0036] The outdoor unit of the multi-split air conditioner supports high sensible heat control;

[0037] In the third scenario mode, when the multi-split air conditioner operates in cooling mode, the centralized control panel also determines the high sensible heat control of the outdoor unit.

[0038] In some embodiments of the present application, for the purpose of energy saving, the centralized control panel controls whether the outdoor unit needs to enter high sensible heat control by judging the parameters related to high sensible heat control of the outdoor unit.

[0039] The centralized control panel also determines the high sensible heat control of the outdoor unit, specifically:

[0040] When it is determined that the maximum value of the difference between the actual temperature of the indoor unit and the set temperature reaches the upper limit of the energy-saving exit temperature difference threshold, or the difference between the humidity detected in the room and the set humidity reaches the upper limit of the energy-saving exit humidity difference threshold, the high sensible heat control is released;

[0041] When it is determined that the maximum value of the difference between the actual temperature of the turned-on indoor unit and the set temperature reaches the lower limit of the energy-saving exit temperature difference threshold, and the difference between the set humidity in the room and the humidity detected in the room reaches the lower limit of the energy-saving exit humidity difference threshold, high sensible heat control is entered.

[0042] In some embodiments of the present application, in order to improve the high sensible heat control effect of the outdoor unit when the outdoor unit enters high sensible heat control, when entering high sensible heat control, the centralized control panel can send function selection parameters to the outdoor unit to inform the outdoor unit of the current high sensible heat control.

[0043] The function selection parameter is a parameter used to characterize the high sensible heat control effect of the current outdoor unit.

[0044] In some embodiments of the present application, the centralized control system further includes:

[0045] A cloud platform connected to the centralized control screen;

[0046] A terminal device, which is connected to the cloud platform and is used to bind the centralized control screen and the connected device;

[0047] The at least one scene mode can be synchronized to the terminal device.

[0048] Users can achieve remote scene control by selecting a scene mode on the terminal device and making the scene mode effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A structural diagram of a multi-split air conditioner in a centralized control system according to some embodiments is shown;

[0050] Figure 2 Another structural diagram of a multi-split air conditioner in a centralized control system according to some embodiments is shown;

[0051] Figure 3 A schematic diagram of a fresh air unit in a centralized control system according to some embodiments is shown;

[0052] Figure 4 A structural diagram of a fresh air unit in a centralized control system according to some embodiments is shown, which includes a refrigeration cycle system and a total heat exchanger;

[0053] Figure 5 Another structural diagram of a fresh air unit in a centralized control system according to some embodiments is shown, which includes a total heat exchanger and a humidification module;

[0054] Figure 6 A system block diagram of a centralized control system according to some embodiments is shown. Figure 1 ;

[0055] Figure 7 A schematic diagram showing a scenario in a centralized control system according to some embodiments;

[0056] Figure 8 A table diagram showing the control of a multi-split air conditioner by a centralized control screen in a centralized control system in a third scene mode according to some embodiments;

[0057] Fig. 9 A flow chart showing high sensible heat control of an outdoor unit by a centralized control panel in a centralized control system according to some embodiments is shown;

[0058] Fig.10 A system block diagram of a centralized control system according to some embodiments is shown. Figure 2 . DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0061] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0062] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0064] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0065] [Multi-split air conditioner]

[0066] The multi-split air conditioner involved in the present application has at least one functional mode of a cooling mode and a floor heating mode.

[0067] Generally, there is a cooling mode when there is a floor heating mode.

[0068] That is, the multi-split air conditioner has a cooling mode; has a cooling mode and an air supply mode; has a cooling mode and a floor heating mode; has a cooling mode, a floor heating mode, and an air supply mode.

[0069] (1) When the multi-split air conditioner has a cooling mode, the multi-split air conditioner can be a common multi-split air conditioner, see Figure 1 .

[0070] Ordinary multi-split units have indoor and outdoor units connected by refrigerant pipes, and can also support heating mode.

[0071] At this time, the working principle of the multi-split air conditioner is described as follows.

[0072] The air conditioner performs the refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies refrigerant to the air that has been conditioned and heat exchanged.

[0073] The compressor compresses the refrigerant gas in a high temperature and high pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0074] The expansion valve expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the entire cycle, the multi-split air conditioner can adjust the temperature of the indoor space.

[0075] The outdoor unit refers to a part including a compressor of a refrigeration cycle and includes an outdoor heat exchanger, the air conditioner indoor unit includes an indoor heat exchanger, and the expansion valve may be provided in the air conditioner indoor unit or the outdoor unit.

[0076] The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger functions as a condenser, the air conditioner functions as a heater in a heating mode, and when the indoor heat exchanger functions as an evaporator, the air conditioner functions as a cooler in a cooling mode.

[0077] The indoor unit described above is a two-pipe indoor unit.

[0078] In addition to the heating mode and cooling mode, the air conditioner also has a fan mode.

[0079] At this time, the multi-split air conditioner has three functional modes: cooling mode, heating mode and air supply mode.

[0080] (2) When the multi-split air conditioner has a floor heating mode, the multi-split air conditioner can be a multi-split air conditioner with floor heating integrated unit, see Figure 2 .

[0081] The multi-split air-conditioning and floor heating integrated unit includes an outdoor unit, an indoor unit and a floor heating water module.

[0082] The indoor units are connected to the outdoor units through refrigerant pipelines. The outdoor units also have water supply pipelines parallel to the refrigerant pipelines. The floor heating water module includes a floor heating coil and a solenoid valve arranged between the floor heating coil and the water supply pipeline.

[0083] The indoor unit described above is a two-pipe indoor unit.

[0084] For example, when the wire controller selects the cooling mode, the air-conditioning indoor unit and the air-conditioning outdoor unit work like a conventional air-conditioning system. At this time, the air-conditioning outdoor unit starts the refrigerant pipeline according to the selected air-conditioning mode, and the compressor of the air-conditioning outdoor unit compresses the refrigerant into liquid through the condenser, and enters the air-conditioning indoor unit through the refrigerant circuit and the expansion valve. At this time, the indoor hot air contacts the evaporator, and the liquid refrigerant is heated to become a gas, taking away the indoor heat to the outdoor unit condenser, and under the blowing of the fan and the pressure change, it is quickly released to the outdoors to achieve air-conditioning cooling.

[0085] When the floor heating mode is selected by the online controller, the air-conditioning indoor unit and the online controller communicate on a regular basis. The online controller sends the demand for the floor heating mode to the air-conditioning indoor unit, and the air-conditioning indoor unit sends the floor heating mode command received from the online controller to the air-conditioning outdoor unit. The air-conditioning outdoor unit and the air-conditioning indoor unit also communicate on a regular basis. If the air-conditioning outdoor unit still receives the signal of the floor heating mode after an interval of, for example, several seconds, the air-conditioning outdoor unit switches from the original refrigerant pipeline to or starts to open the water supply pipeline, thereby realizing floor heating.

[0086] At this time, the multi-split air conditioner has four functional modes: heating mode, cooling mode, air supply mode and floor heating mode.

[0087] Therefore, when the multi-split air conditioner supports the cooling mode, the multi-split air conditioner in the present application can be the ordinary multi-split air conditioner in (1) as described above and the multi-split air conditioner with floor heating in (2).

[0088] When the multi-split air conditioner supports the floor heating mode, the multi-split air conditioner in the present application may be a multi-split air conditioner and floor heating integrated unit as described in (2) above.

[0089] When the multi-split air conditioner supports cooling mode, floor heating mode and air supply mode, the multi-split air conditioner in the present application may be a multi-split air conditioner and floor heating integrated unit as described in (2) above.

[0090] [Fresh air unit]

[0091] The fresh air unit in the present application has fresh air function, temperature regulation function and humidity regulation function.

[0092] The fresh air function is used to adjust the indoor air quality, the temperature adjustment function is used to adjust the temperature of the indoor air (i.e., adjust the temperature of the fresh air entering the room), and the humidity adjustment function is used to adjust the humidity of the indoor air (i.e., adjust the humidity of the fresh air entering the room).

[0093] See also Figure 3 The fresh air unit includes a refrigeration cycle system 100, a total heat exchanger 200, a dehumidification module and a humidification module 300.

[0094] Among them, the total heat exchanger 200 has a casing, and the dehumidification module can be placed in the casing to dehumidify the introduced fresh air; the humidification module 300 can be placed outside the casing and communicate with the total heat exchanger 200 to operate in conjunction with the total heat exchanger 200 when humidification is required.

[0095] For example, the refrigeration cycle system 100, the total heat exchanger 200, the dehumidification module and the humidification module 300 are described in sequence.

[0096] See also Figure 4 The refrigeration cycle system 100 involved in the present application includes a compressor 110, a four-way valve 120, a first heat exchanger 130, a first throttling element 140, a second heat exchanger 150, a switching switch 170 and a third heat exchanger 160 connected through connecting pipes, and one end of the second heat exchanger 150 is connected to the liquid pipe side of the first heat exchanger 130 through the first throttling element 140.

[0097] The total heat exchanger 200 includes an exhaust port EA, an exhaust fan 270 , a casing, a total heat exchange core 210 , a return air port RA, a fresh air port OA, an air supply port SA and a blower 260 .

[0098] The casing is provided with an exhaust port EA, a return air port RA, an air supply port SA and a fresh air port OA. The exhaust port EA is provided with an exhaust fan 270, and the air supply port SA is provided with a air supply fan 260; the full heat exchange core body 210 is arranged inside the casing, and the space inside the casing is divided into four channels that are all connected to the full heat exchange core body 210.

[0099] The four channels include a fresh air channel 220 , a supply air channel 230 , a return air channel 240 and an exhaust air channel 250 .

[0100] The fresh air passage 220 is a passage from the fresh air inlet OA to one side of the full heat exchange core 210 .

[0101] The air supply passage 230 is a passage from one side of the total heat exchange core 210 to the air supply port SA.

[0102] The return air passage 240 is a passage from the return air port RA to one side of the full heat exchange core 210 .

[0103] The exhaust passage 250 is a passage from one side of the full heat exchange core 210 to the exhaust port EA.

[0104] When the total heat exchanger performs heat exchange, the return air from the return air outlet RA and the fresh air from the fresh air outlet OA are heat exchanged through the total heat exchange core 210 .

[0105] Dehumidification is performed in cooling mode, wherein the dehumidification module may be a condensing dehumidification module.

[0106] The dehumidification module uses condensation cooling to make the outdoor air condense to achieve dehumidification. When condensation dehumidification is not used, the dehumidification module may not dehumidify the air.

[0107] See also Figure 5 A humidification module 300 (eg, a humidifier) ​​is disposed outside the housing. With the power of the fresh air delivered from the air outlet SA, the moisture in the humidification module 300 is blown into the room to adjust the indoor air humidity.

[0108] The humidification module 300 is connected to the fresh air supply port SA, and the two are connected via a shock-absorbing hose, which can reduce vibration and noise.

[0109] The fresh air unit described above may also have other structures as long as it can have temperature regulation function and humidity regulation function.

[0110] The structure of the fresh air unit as described above is also shown only as an example.

[0111] [Centralized control system]

[0112] See also Figure 6 The centralized control system in this application includes a multi-split air conditioner, a fresh air unit and a centralized control panel.

[0113] The centralized control panel is connected to the multi-split air conditioner and fresh air unit through the communication bus.

[0114] The centralized control screen first searches for the connected devices (including multi-split air conditioners and fresh air units) through the communication bus and establishes a binding relationship. After the binding is successful, the connected devices are displayed on the homepage of the centralized control screen.

[0115] In order to facilitate unified management by users, the devices connected to the communication bus are grouped, and each group includes a fresh air unit and a multi-split air conditioner. For example, four groups are set.

[0116] Of course, the connected devices may not be grouped. In some embodiments of the present application, the centralized control screen sets the scene mode in groups, generates a corresponding scene mode for each group, and controls the operating status of the multi-split air conditioner and the fresh air unit after the scene mode takes effect.

[0117] In some embodiments of the present application, the scene mode may include a first scene mode (also referred to as a "dry summer" scene mode), a second scene mode (also referred to as a "warm winter" scene mode), and a third scene mode (also referred to as a "smart comfort" scene mode), see Figure 7 .

[0118] In some embodiments of the present application, different scene modes are generated corresponding to different function modes of the multi-split air conditioners in the group.

[0119] If the multi-split air conditioner in the group is a common multi-split air conditioner as described in (1) above, the corresponding scene may be the first scene mode.

[0120] If the multi-split air conditioner in the group is the multi-split air conditioner and floor heating integrated unit in (2) above, the corresponding scene can be "the first scene mode, the second mode, or the third mode.

[0121] In some embodiments of the present application, the second scene mode requires the multi-split air conditioner to support the floor heating mode; in some embodiments of the present application, the second scene mode may also involve the heating mode of the multi-split air conditioner.

[0122] Thus, the multi-split air conditioners in (1) and (2) described above both have a first scene mode, a second scene mode, and a third scene mode.

[0123] As follows, the second scene mode still requires the multi-split air conditioner to support the floor heating mode as an example for explanation.

[0124] The multi-split air conditioner is a multi-split air conditioner and floor heating integrated unit as described in (2) above as an example for explanation.

[0125] [First scene mode]

[0126] The scene mode can be made effective by the user clicking the scene icon of the first scene mode on the centralized control screen.

[0127] In this scene mode, the multi-split air conditioners in the group support cooling mode.

[0128] If the multi-split air conditioner operates in this cooling mode, the refrigeration cycle of the multi-split air conditioner is no different from the refrigeration cycle of a conventional air conditioner.

[0129] At this time, the centralized control panel obtains the lowest set temperature of the indoor units of the multi-split air conditioners in the group as the set temperature of the fresh air unit in the group, which is used to assist the multi-split air conditioners in temperature regulation.

[0130] If the multi-split air conditioner in the group is not turned on, the centralized control panel obtains the set temperature set by the user on the centralized control panel as the set temperature of the fresh air unit in the group, which is used to assist the multi-split air conditioner in temperature adjustment.

[0131] The centralized control screen obtains the set humidity set by the user on the centralized control screen as the set humidity of the fresh air unit in the group.

[0132] In addition, the centralized control panel sets the air volume of the fresh air unit to automatic air volume, that is, it is no longer set by the wired controller.

[0133] It should be noted that in this scene mode, the air volume and set temperature of the multi-split air conditioner are controlled by the connected wire controller.

[0134] As follows, the working process of the fresh air unit in cooling mode will be described.

[0135] In the first scene mode, cooling and dehumidification are required.

[0136] During cooling, since the cooling effect of the fresh air unit is not as good as that of the multi-split air conditioner, when there is a multi-split air conditioner turned on in the group, the temperature control of the multi-split air conditioner is mainly based on temperature control, and the temperature control of the fresh air unit is supplemented.

[0137] At this time, cooling is completed by the fresh air unit and the multi-split air conditioner. When no multi-split air conditioner is turned on in the group, cooling is completed by the fresh air unit.

[0138] When dehumidifying, it mainly describes the use of fresh air units for dehumidification control.

[0139] See also Figure 4 In the embodiment of the present application, during cooling, the fresh air humidity Φ of the fresh air upstream of the second heat exchanger 150 is detected. 231 Implement humidity control.

[0140] In Φ 231 When the humidity is not less than the first preset humidity Φset or the first preset humidity range, dehumidification control is performed.

[0141] In Φ 231 When the humidity is less than the first preset humidity Φset or the first preset humidity range, dehumidification control is not performed.

[0142] The fresh air humidity Φ upstream of the second heat exchanger 150 is 231 It can be detected by the temperature and humidity sensor 231.

[0143] In cooling, to control the humidity of the air supply Φ 231'For example, the supply air humidity Φ 231' is equal to the second indoor preset humidity Φset' or is within the second indoor preset humidity range.

[0144] The second indoor preset humidity Φset' is the set humidity set by the user and obtained by the centralized control screen.

[0145] See also Figure 4 During cooling, the first throttling element 140 is controlled to open, the compressor 110 is turned on, and the four-way valve 120 is controlled to open to the refrigeration cycle refrigerant circulation state (for example, DC is connected, ES is connected), and the first controllable switch 171 is controlled to be disconnected and the second controllable switch 172 is controlled to be connected, so that the second end of the second heat exchanger 150 is connected to the compressor 110 through the third heat exchanger 160.

[0146] At this time, a refrigeration cycle is formed in which the first heat exchanger 130 functions as a condenser, and the second heat exchanger 150 and the third heat exchanger 160 both function as evaporators.

[0147] When introducing fresh air, outdoor fresh air is introduced through the fresh air outlet OA, first cooled and dehumidified by the third heat exchanger 160, and then enters the full heat exchange core 210, exchanges heat with the indoor return air in the full heat exchange core 210, and then cools down by the second heat exchanger 150, and finally is sent out from the air outlet SA by the blower 260 and enters the room, completing the process of introducing cold air.

[0148] In order to achieve the air humidity Φ 231' The second indoor preset humidity Φset' or the second indoor preset humidity range is reached faster. In this mode, the wind speed (ie, gear position) of the air supply fan 260 is controlled.

[0149] In some embodiments of the present application, dehumidification control may be performed, for example, in the following manner.

[0150] (1) Determine Φ 231 and the size of the first preset humidity Φset, if Φ 231 If the humidity is not less than the first preset humidity Φset, the process goes to S2; otherwise, the humidity control is not performed.

[0151] (2) Calculating the difference ΔΦ between the fresh air humidity upstream of the second heat exchanger 150 and the first preset humidity;

[0152] (3) Determine the target humidity range to which △Φ belongs by comparing it with the preset humidity range;

[0153] (4) Determine the windshield of the air supply fan 231' at the air supply outlet SA according to the target humidity range;

[0154] (5) Determine in real time whether the air humidity at the air outlet SA reaches the indoor preset humidity or the indoor preset humidity range. If so, proceed to (6); if not, return to (2);

[0155] (6) The compressor 110 stops and returns to (1) after a certain period of time.

[0156] In this way, the first scene mode control is achieved by using the centralized control screen.

[0157] [Second scene mode]

[0158] The user can click the "second scene mode" scene icon on the centralized control screen to make the scene mode effective.

[0159] In this scene mode, multi-split air conditioners in the group support floor heating mode.

[0160] If the multi-split air conditioner is running in the floor heating mode, the centralized control panel obtains the highest set temperature of the indoor units of the multi-split air conditioners in the group as the set temperature of the fresh air unit in the group, which is used to assist the multi-split air conditioner in temperature adjustment.

[0161] If the multi-split air conditioner in the group is not turned on, the centralized control panel obtains the set temperature set by the user on the centralized control panel as the set temperature of the fresh air unit in the group, which is used to assist the multi-split air conditioner in temperature adjustment.

[0162] The centralized control screen obtains the set humidity set by the user on the centralized control screen as the set humidity of the fresh air unit in the group.

[0163] In addition, the centralized control panel sets the air volume of the fresh air unit to automatic air volume, that is, it is no longer set by the wired controller.

[0164] It should be noted that in this scenario mode, the air volume and set temperature of the multi-split air conditioner are controlled by the connected wired controller. The following describes the working process of the fresh air unit in this scenario.

[0165] In the second scene mode, floor heating and humidification are required.

[0166] During heating, the heating effect of the fresh air unit is not as good as the floor heating of the multi-split air conditioner. Therefore, when the multi-split air conditioner is turned on in the group, the temperature control of the multi-split air conditioner is mainly used, and the temperature control of the fresh air unit is supplemented.

[0167] At this time, heating is completed by the fresh air unit and the multi-split air conditioner. When no multi-split air conditioner is turned on in the group, heating is completed by the fresh air unit.

[0168] When humidifying, it mainly describes the use of fresh air units for humidification control.

[0169] In the heating or floor heating mode, humidity control is performed by detecting the supply air humidity Φ of the supply air flow at the air outlet of the humidification module 300 .

[0170] When Φ is not less than the third preset humidity Φset'', humidification control is not performed.

[0171] When Φ is less than the third preset humidity Φset'', humidification control is performed.

[0172] The air supply humidity Φ can be detected by a temperature and humidity sensor disposed at the air outlet of the humidification module 300 .

[0173] When the floor heating mode is in operation, the goal is to control the supply air humidity Φ so that the supply air humidity Φ is equal to the third indoor preset humidity Φset''.

[0174] The third indoor preset humidity Φset'' is the set humidity set by the user and obtained by the centralized control screen.

[0175] When the floor heating mode is running (the heating mode will also be running at the same time), the first throttling element 140 is controlled to open, the compressor 110 is turned on, and the four-way valve 120 is opened to the heating cycle refrigerant circulation state (for example, DE is connected, CS is connected), and the first controllable switch 171 is controlled to be connected and the second controllable switch 172 is disconnected, so that the second end of the second heat exchanger 150 is directly connected to the compressor 110.

[0176] At this time, a heating cycle is formed in which the first heat exchanger 130 functions as an evaporator and the second heat exchanger 150 functions as a condenser.

[0177] When introducing fresh air, the outdoor fresh air enters the full heat exchange core 210 from the fresh air inlet OA, exchanges heat with the indoor return air in the full heat exchange core 210, is heated by the second heat exchanger 150, and is finally sent out from the air outlet SA by the blower 260 and enters the room, completing the process of introducing hot air.

[0178] The fresh air blown out from the air supply port SA is sent to the humidification module 300, and then brings the hot and humid air into the room, thereby achieving the purpose of regulating the humidity of the indoor fresh air.

[0179] The air humidity Φ of the air flow entering the room can be adjusted by controlling the air volume at the air outlet SA.

[0180] In this way, the "Winter Warm Sun" scene control can be achieved using the centralized control screen.

[0181] [Third scene mode]

[0182] The scene mode can be made effective by the user clicking the scene icon of the third scene mode on the centralized control screen.

[0183] In this scene mode, the multi-split air conditioners in the group support cooling mode, floor heating mode and air supply mode.

[0184] If the multi-split air conditioner is running, the centralized control panel obtains the average set temperature of the indoor units of the turned-on multi-split air conditioners in the group as the set temperature of the fresh air unit in the group, which is used to assist the multi-split air conditioner in temperature regulation.

[0185] If the multi-split air conditioner in the group is not turned on, the centralized control panel obtains the set temperature set by the user on the centralized control panel as the set temperature of the fresh air unit in the group, which is used to assist the multi-split air conditioner in temperature adjustment.

[0186] The centralized control screen obtains the set humidity set by the user on the centralized control screen as the set humidity of the fresh air unit in the group.

[0187] In addition, the centralized control panel sets the air volume of the fresh air unit to automatic air volume, that is, it is no longer set by the wired controller.

[0188] The centralized control panel sets the operating mode of the multi-split air conditioner based on the room temperature Troom, seasonal temperature setting threshold and outdoor temperature Toa.

[0189] Therefore, the fresh air unit will be controlled accordingly according to the operating mode of the multi-split air conditioner.

[0190] For example, the centralized control panel sets the multi-split air conditioner to operate in cooling mode in this scene mode, and the fresh air unit in this scene mode will be controlled in the same way as in the first scene mode.

[0191] If the centralized control panel sets the multi-split air conditioner to operate in floor heating mode in this scene mode, the fresh air unit will be controlled in the same way as in the second scene mode in this scene mode.

[0192] [Deep dehumidification]

[0193] In an embodiment of the present application, a deep dehumidification determination will also be performed for the specific geographical location of the fresh air unit. When the conditions for deep dehumidification are met, the centralized control panel enables the fresh air unit to enter deep dehumidification.

[0194] Deep dehumidification is a functional option.

[0195] As mentioned above, when the centralized control panel is connected to the cloud platform through a gateway device, the geographical location of the fresh air unit can be obtained.

[0196] The above-mentioned specific geographical locations, such as cities in the East China and South China regions, are relatively humid and have a more urgent need for deep dehumidification.

[0197] Therefore, for these specific geographical locations, if it is determined that the conditions for deep dehumidification are met, deep dehumidification can be initiated.

[0198] The above-mentioned specific geographical location (recorded as the geographical location to be deeply dehumidified) can be freely set according to needs.

[0199] You can choose to judge the following conditions to determine whether the fresh air unit has entered deep dehumidification.

[0200] (1) Get the current month and determine whether the current month is within the range of months for deep dehumidification.

[0201] The range of months for deep dehumidification can be freely set according to demand, for example, set to February to July.

[0202] (2) Obtaining the outdoor temperature Toa, and determining whether the outdoor temperature Toa continues for a first preset time period after reaching an upper limit value of a first preset temperature threshold.

[0203] The cloud platform can obtain the current weather parameters of the fresh air unit in real time through a third-party weather data platform.

[0204] The current weather parameters may include, for example, the current outdoor temperature and the like.

[0205] For example, Toa ≥ 10°C for one hour.

[0206] (3) Get the current weather conditions and determine whether it is raining.

[0207] The cloud platform can obtain the current weather conditions of the fresh air unit in real time through a third-party weather data platform.

[0208] The current weather conditions may include, for example, rainy, sunny, cloudy, etc.

[0209] (4) Obtaining the outdoor humidity Hoa, and determining whether the outdoor humidity Hoa continues for a second preset time period after reaching an upper limit value of the first preset humidity threshold.

[0210] The cloud platform can obtain the current weather parameters of the fresh air unit in real time through a third-party weather data platform.

[0211] The current weather parameters may include, for example, outdoor humidity and the like.

[0212] For example, Hoa ≥ 80% for one hour.

[0213] When at least two of the multiple judgment conditions are met, the centralized control panel sets the fresh air unit to enter deep dehumidification.

[0214] [Multi-split air conditioning control]

[0215] As described above, in the third scene mode, the centralized control panel sets the operation mode of the multi-split air conditioner based on the room temperature Troom, the seasonal temperature setting threshold and the outdoor temperature Toa.

[0216] It should be noted that, according to different seasons, the seasonal temperature setting threshold is subdivided into: autumn and winter temperature setting threshold Th_on and spring and summer temperature setting threshold Tc_on.

[0217] Based on the room temperature Troom, the autumn and winter temperature setting threshold Th_on, the spring and summer temperature setting threshold Tc_on and the outdoor temperature Toa, the specific settings of the operating mode (cooling mode, floor heating mode, or air supply mode) of the multi-split air conditioner can be set as needed.

[0218] As follows, see Figure 8 For example, the centralized control panel sets the operating mode of the multi-split air conditioner.

[0219] (1) When the room temperature Troom<Th_on for 24 hours and the outdoor temperature Toa<50℃-Troom, the multi-split air conditioner operates in floor heating mode.

[0220] The user can set and modify the set temperature and set humidity on the centralized control screen.

[0221] The set temperature can be limited to the range of 16℃ to 30℃, with the initial value being 22℃; the set humidity of the fresh air unit can be limited to 30% to 80%, with the initial value being 50%.

[0222] Among them, the autumn and winter temperature setting threshold Th_on can also be set according to needs.

[0223] The autumn and winter temperature setting threshold Th_on can be limited to the range of 16°C to 24°C, with an initial value of 22°C.

[0224] (2) When the room temperature Troom < Th_on - 2°C and the outdoor temperature Toa < 50°C - Troom, the multi-split air conditioner operates in floor heating mode.

[0225] The user can set and modify the set temperature and set humidity on the centralized control screen.

[0226] The set temperature can be limited to the range of 16℃ to 30℃, with the initial value being 22℃; the set humidity of the fresh air unit can be limited to 30% to 80%, with the initial value being 50%.

[0227] Among them, the autumn and winter temperature setting threshold Th_on can also be set according to needs.

[0228] The autumn and winter temperature setting threshold Th_on can be limited to the range of 16°C to 24°C, with an initial value of 22°C.

[0229] (3) When the room temperature Troom>Tc_on for 24 hours and the outdoor temperature Toa>40℃-Troom, the multi-split air conditioner operates in cooling mode.

[0230] The user can set and modify the set temperature and set humidity on the centralized control screen.

[0231] The set temperature can be limited to the range of 16℃ to 30℃, with the initial value being 22℃; the set humidity of the fresh air unit can be limited to 30% to 80%, with the initial value being 50%.

[0232] Among them, the spring and summer temperature setting threshold Tc_on can also be set according to needs.

[0233] The spring and summer temperature setting threshold Tc_on can be limited to the range of 24°C to 32°C, with an initial value of 26°C.

[0234] (4) When the room temperature Troom>Tc_on+2℃ and the outdoor temperature Toa>40℃-Troom, the multi-split air conditioner operates in cooling mode.

[0235] The user can set and modify the set temperature and set humidity on the centralized control screen.

[0236] The set temperature can be limited to the range of 16℃ to 30℃, with the initial value being 22℃; the set humidity of the fresh air unit can be limited to 30% to 80%, with the initial value being 50%.

[0237] Among them, the spring and summer temperature setting threshold Tc_on can also be set according to needs.

[0238] The spring and summer temperature setting threshold Tc_on can be limited to the range of 24°C to 32°C, with an initial value of 26°C.

[0239] (5) When the temperature setting threshold Th_on in autumn and winter is less than the room temperature Troom < Th_on-2℃, the multi-split air conditioner operates in the air supply mode.

[0240] At this time, the outdoor unit of the multi-split air conditioner stops working.

[0241] (6) When any of the above conditions (1) to (5) are not met, the multi-split air conditioner maintains the previous state, and when any of the above conditions (1) to (5) are first entered, the outdoor unit of the multi-split air conditioner stops working and the multi-split air conditioner operates in the air supply mode.

[0242] The set temperature and the set humidity of the fresh air unit are maintained at the previous values, and when entering any of the above conditions (1) to (5) for the first time, the set temperature and the set humidity of the fresh air unit are set by the user.

[0243] [Outdoor unit high sensible heat control]

[0244] For energy-saving considerations, in the third scenario mode, if the multi-split air conditioner is in cooling mode and the outdoor unit supports high sensible heat control, the centralized control panel is required to determine whether the outdoor unit enters high sensible heat control under the current state.

[0245] The outdoor unit is energy-saving when operating in high sensible heat control. In this way, the user can save energy while realizing the third scene mode control.

[0246] It is the most energy-efficient when the sensible heat is 100%. As the sensible heat ratio decreases, the energy-saving effect also decreases. Therefore, try to increase the sensible heat ratio as much as possible while satisfying the third scenario mode.

[0247] See also Fig. 9 The centralized control panel determines whether the outdoor unit performs high sensible heat control as follows.

[0248] (1) When the maximum value of the difference between the actual temperature Ti and the set temperature Ts of each turned-on indoor unit in the group (i.e., max(Ti-Ts)) reaches the upper limit of the energy-saving exit temperature difference threshold Ton_offset, or the difference between the humidity Hroom detected in the room and the set humidity Hs reaches the upper limit of the energy-saving exit humidity difference threshold Hon_offset, the high sensible heat control is released.

[0249] For example, when max(Ti-Ts)≥Ton_offset (or max(Ti-Ts)>Ton_offset) or Hroom-Hs>Hon_offset (or Hroom-Hs≥Hon_offset), the high sensible heat control is released.

[0250] Among them, the energy-saving exit temperature difference threshold Ton_offset and the energy-saving exit humidity difference threshold Hon_offset can be set according to needs.

[0251] The energy-saving exit temperature difference threshold Ton_offset can be limited to the range of 4°C to 6°C, with an initial value of 4°C.

[0252] The energy-saving exit humidity difference threshold Hon_offset can be limited to the range of 10% to 20%, with an initial value of 20%.

[0253] (2) When the maximum value of the difference between the actual temperature Ti and the set temperature Ts of each turned-on indoor unit in the group (i.e., max(Ti-Ts)) reaches the lower limit of the energy-saving entry temperature difference threshold Toff_offset, and the difference between the set humidity Hs in the room and the humidity detected in the room Hroom reaches the lower limit of the energy-saving entry humidity difference threshold Hoff_offset, high sensible heat control is entered.

[0254] For example, when max(Ti-Ts))≤Toff_offset (or max(Ti-Ts))<Ton_offset) or Hs-Hroom<Hoff_offset (or Hs-Hroom≤Hoff_offset), high sensible heat control is entered.

[0255] Among them, the energy-saving entry temperature difference threshold Toff_offset and the energy-saving entry humidity difference threshold Hoff_offset can be set according to needs.

[0256] The energy-saving entry temperature difference threshold Toff_offset can be limited to the range of 0°C to 2°C, with an initial value of 2°C.

[0257] The energy saving entry humidity difference threshold Hoff_offset can be limited to the range of 0% to 10%, with an initial value of 0%.

[0258] In some embodiments of the present application, the centralized control panel sends the function selection parameter Fb to the outdoor unit, causing the outdoor unit to enter high sensible heat control.

[0259] The function selection parameter Fb is calculated as follows: Fb=[Toff_offse-max(Ti-Ts)+1], where [] indicates rounding.

[0260] The range of the function selection parameter Fb can be set as follows: 0≤Fb≤4.

[0261] When the temperature difference between the actual temperature Ti and the set temperature Ts is larger, Fb is smaller, which means that the sensible heat of the outdoor unit is less obvious.

[0262] In this way, the function selection parameter Fb can represent the high sensible heat control effect of the outdoor unit.

[0263] The centralized control panel can send Fb to the outdoor unit to inform the outdoor unit of the current high sensible heat control effect.

[0264] When the high sensible heat control effect is not obvious (i.e., the function selection parameter Fb is small), after the outdoor unit receives Fb, it can, for example, reduce the compressor frequency to increase the evaporation pressure, thereby increasing the evaporation temperature. In this way, the condensation of the outdoor heat exchanger decreases and the sensible heat becomes higher.

[0265] In this way, the high sensible heat control effect of the outdoor unit can be adjusted dynamically to achieve energy saving while realizing scene-based control.

[0266] (3) For the other conditions, keep the last status and release the high sensible heat when entering for the first time.

[0267] The “other conditions” refer to the conditions that do not fall under (1) and (2) as described above.

[0268] The centralized control system provided in this application can perform one-to-many scenario-based control through the centralized control screen to meet the user's multi-scenario needs.

[0269] In some embodiments of the present application, see Fig.10 ,The centralized control system can include a cloud platform and terminal devices.

[0270] The centralized control screen is connected to the cloud platform through a gateway device.

[0271] The gateway device has a communication module and is not limited to communication in the form of WiFi / NB-IOT, but can also be a WiFi gateway.

[0272] The cloud platform interacts with the centralized control screen through gateway devices.

[0273] The terminal devices include a type of device installed with an application program APP for controlling, for example, a central air conditioner, such as a smart phone, a tablet computer (PAD), and a personal PC.

[0274] As mentioned above, after the centralized control screen is successfully bound to the connected device, the centralized control screen reports the connected device to the cloud platform through the gateway device, and the APP on the terminal device completes the binding of the centralized control screen and the connected device through the cloud platform.

[0275] At least one scene mode generated on the integrated control screen can be synchronized to the APP, wherein the at least one scene mode includes the first scene mode, the second scene mode and the third scene mode as described above.

[0276] Users can click the scene icon corresponding to the scene mode on the APP to make the scene mode take effect.

[0277] The scenario-based control executed after clicking the scene icon on the APP is effective is the same as the scenario-based control executed after clicking the scene icon on the centralized control screen is effective, and will not be repeated here.

[0278] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0279] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A centralized control system, characterized in that: include: A multi-split air conditioner having at least one functional mode of a cooling mode and a floor heating mode; Fresh air unit, which can adjust the temperature and humidity of indoor air; A centralized control panel, which is connected to the multi-split air conditioner and the fresh air unit via a communication bus; Based on the functional mode of the multi-split air conditioner, at least one scene mode corresponding to the functional mode is displayed on the centralized control screen; When the scene mode takes effect, the centralized control panel controls the operating status of the multi-split air conditioner and the fresh air unit under the scene mode.

2. The centralized control system according to claim 1, characterized in that: In the first scene mode, the multi-split air conditioner has a cooling mode and operates in the cooling mode; The centralized control panel obtains the lowest set temperature of the indoor unit of the turned-on multi-split air conditioner or obtains the set temperature set by the user as the set temperature of the fresh air unit, and obtains the set humidity set by the user as the set humidity of the fresh air unit.

3. The centralized control system according to claim 1, characterized in that: In the second scene mode, the multi-split air conditioner has a floor heating mode and operates in the floor heating mode; The centralized control panel obtains the highest set temperature of the indoor unit of the turned-on multi-split air conditioner or obtains the set temperature set by the user as the set temperature of the fresh air unit, and obtains the set humidity set by the user as the set humidity of the fresh air unit.

4. The centralized control system according to claim 1, characterized in that: In the third scene mode, the multi-split air conditioner has specific cooling mode, floor heating mode and air supply mode; The centralized control panel obtains the average set temperature of the indoor units of the powered-on multi-split air conditioners or obtains the set temperature set by the user as the set temperature of the fresh air unit, and obtains the set humidity set by the user as the set humidity of the fresh air unit; The centralized control panel sets the operating mode of the multi-split air conditioner based on the room temperature in the room, the seasonal temperature setting threshold and the outdoor temperature.

5. The centralized control system according to claim 1, characterized in that: When the centralized control screen is connected to the network and the cloud platform through the gateway device, the centralized control screen obtains the location information, and when the location information is within the geographical location to be deeply dehumidified, the centralized control screen enters the deep dehumidification determination.

6. The centralized control system according to claim 5, characterized in that: The determination of the centralized control panel entering deep dehumidification is specifically to obtain multiple determination conditions, including: Get the current month and determine whether the current month is within the range of months to be deeply dehumidified; Acquire the outdoor temperature, and determine whether the outdoor temperature continues for a first preset time period when reaching an upper limit value of a first preset temperature threshold; Get the current weather conditions and determine whether it is rainy; Obtaining outdoor humidity, and determining whether the outdoor humidity continues for a second preset time period after reaching an upper limit value of a first preset humidity threshold; When at least two of the multiple determination conditions are met, the centralized control panel sets the fresh air unit to enter deep dehumidification.

7. The centralized control system according to claim 4, characterized in that: The outdoor unit of the multi-split air conditioner supports high sensible heat control; In the third scene mode, when the multi-split air conditioner operates in cooling mode, the centralized control panel also determines the high sensible heat control of the outdoor unit.

8. The centralized control system according to claim 7, characterized in that: The centralized control panel also determines the high sensible heat control of the outdoor unit, specifically: When it is determined that the maximum value of the difference between the actual temperature of the indoor unit and the set temperature reaches the upper limit of the energy-saving exit temperature difference threshold, or the difference between the humidity detected in the room and the set humidity reaches the upper limit of the energy-saving exit humidity difference threshold, the high sensible heat control is released; When it is determined that the maximum value of the difference between the actual temperature of the indoor unit when it is turned on and the set temperature reaches the lower limit of the energy-saving exit temperature difference threshold, and the difference between the set humidity in the room and the humidity detected in the room reaches the lower limit of the energy-saving exit humidity difference threshold, high sensible heat control is entered.

9. The centralized control system according to claim 8, characterized in that: When entering high sensible heat control, the centralized control panel can send function selection parameters to the outdoor unit; The function selection parameter is a parameter used to characterize the high sensible heat control effect of the current outdoor unit.

10. The centralized control system according to claim 1, characterized in that: Also includes: A cloud platform connected to the centralized control screen; A terminal device, which is connected to the cloud platform and is used to bind the centralized control screen and the connected devices; The at least one scene mode can be synchronized to the terminal device.

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