Multi-connected system, operation control method, control device and storage medium

Abstract

The invention discloses a multi-split system, an operation control method, a control device and a storage medium, the multi-split system comprises a radiation heat exchange module and a wind disc module which are arranged in a room, and the method comprises the steps that when a start control signal and the target temperature of the room are received, the radiation heat exchange module is controlled to start to operate, and the internal environment temperature of the room is obtained; and when the difference value between the internal environment temperature and the target temperature is larger than a first preset value, the air disc module is controlled to start running. According to the embodiment, the temperature adjusting efficiency of the radiation air conditioner can be improved, the scene application rate is high, and the comfort of a multi-connected system can be improved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a multi-split system, an operation control method, a control device, and a storage medium. Background Technology

[0002] Radiant air conditioning typically involves laying capillary tubes or radiant panels on the inner surface of a building envelope. Water circulation lowers or raises the temperature of this surface, creating radiant surfaces that exchange heat with people, furniture, and other objects. Radiant air conditioning systems do not occupy indoor space and do not involve strong air convection, resulting in high user comfort. Therefore, some multi-split systems use radiant air conditioners as indoor units in various rooms. However, the comfort of radiant air conditioning is based on a stable environment without air convection. When faced with sudden environmental changes, such as opening doors or windows or increasing the number of people in a room, the ambient temperature fluctuates significantly. In such cases, the ambient temperature differs considerably from the target temperature. Relying on the same control methods for temperature regulation becomes inefficient, greatly prolonging the time it takes to reach the target temperature and severely impacting the user experience. Therefore, improving the temperature regulation efficiency of radiant air conditioning is a pressing issue that needs to be addressed. Summary of the Invention

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a multi-split air conditioning system, an operation control method, a control device and a storage medium, which can improve the temperature regulation efficiency of radiant air conditioning, have a high scene applicability and can improve the comfort of multi-split systems.

[0004] In a first aspect, embodiments of the present invention provide an operation control method for a multi-split system, the multi-split system including a radiant heat exchange module and a fan coil module disposed inside a room, the method comprising:

[0005] Upon receiving a start control signal and the target temperature of the room, the system controls the radiant heat exchange module to start operation and acquire the internal ambient temperature of the room.

[0006] When the difference between the internal ambient temperature and the target temperature is greater than a first preset value, the fan coil module is controlled to start operation.

[0007] The operation control method for a multi-split system provided by the embodiments of the present invention has at least the following beneficial effects: By adding a fan coil module to the structure of the multi-split system, when the difference between the internal ambient temperature and the target temperature is greater than a first preset value, i.e., it is considered that it is difficult to quickly adjust the internal ambient temperature to the target temperature in a short time, the fan coil module is used to accelerate the air flow inside the room, improve the mixing and convection of the air inside the room, and blow the high-temperature / low-temperature gas around the radiant heat exchange module into the entire interior of the room, so as to accelerate the temperature adjustment and heat transfer inside the room, improve the heating / cooling effect of the multi-split system, help to achieve rapid adjustment of room temperature, and be applicable to different scenarios, especially when the difference between the internal ambient temperature and the target temperature is large, it can improve the comfort of the multi-split system.

[0008] In the operation control method provided in the embodiments of the present invention, when the change value of the internal ambient temperature within a first preset time period is detected to be greater than a second preset value, the fan coil module is controlled to start operation.

[0009] In the operation control method provided in the embodiments of the present invention, after the fan coil module starts running, when the difference between the internal ambient temperature and the target temperature drops to less than the first preset value, the fan coil module is controlled to continue running for a second preset time and then stop running.

[0010] In the operation control method provided in this embodiment of the invention, the radiant heat exchange module includes a cooling heat exchange coil installed on the wall or ceiling of the room. When the room is operating in cooling mode, when the internal ambient temperature reaches the dew point temperature of the room, the heat exchange power of the cooling heat exchange coil is reduced.

[0011] In the operation control method provided in this embodiment of the invention, when the internal ambient temperature reaches the dew point temperature of the room, the fan coil module is controlled to operate in dehumidification mode.

[0012] In the operation control method provided in the embodiments of the present invention, when the internal ambient temperature is higher than the dew point temperature, the fan coil module is controlled to continue running for a third preset time and then stop running, and the heat exchange power of the cooling heat exchange coil is controlled to recover to the power before the decrease.

[0013] Secondly, embodiments of the present invention provide an operation control method for a multi-split system, the multi-split system including a radiant heat exchange module and a fan coil module disposed inside a room, the method comprising:

[0014] Upon receiving a start control signal and the target temperature of the room, the system controls the radiant heat exchange module to start operation based on the target temperature and acquires the internal ambient temperature of the room.

[0015] When the change in the internal ambient temperature within a first preset time period is detected to be greater than a second preset value, the fan coil module is controlled to start operation.

[0016] The operation control method for a multi-split system provided by the embodiments of the present invention has at least the following beneficial effects: By adding a fan coil module to the structure of the multi-split system, when the change value of the internal ambient temperature is greater than a second preset value after a first preset time, it is considered that the environment has changed abruptly and it is difficult to quickly adjust the internal ambient temperature to the target temperature in a short period of time. In this case, the fan coil module is used to accelerate the air flow inside the room, improve the mixing and convection of the air inside the room, and blow the high-temperature / low-temperature gas around the radiant heat exchange module into the entire interior of the room, so as to accelerate the temperature adjustment and heat transfer inside the room, improve the heating / cooling effect of the multi-split system, help to achieve rapid adjustment of room temperature, and be applicable to different scenarios. In particular, it can improve the comfort of the multi-split system when the internal ambient temperature fluctuates greatly.

[0017] Thirdly, embodiments of the present invention provide an operation control method for a multi-split system, the multi-split system including a radiant heat exchange module and a fan coil module disposed inside a room, the method comprising:

[0018] Upon receiving a start control signal and the target temperature of the room, the system controls the radiant heat exchange module to start operation based on the target temperature and acquires the internal ambient temperature of the room.

[0019] When the radiant heat exchange module is operating in cooling mode, and the internal ambient temperature reaches the dew point temperature of the room, the fan coil module is controlled to operate in dehumidification mode, and the heat exchange power of the cooling heat exchange coil is reduced.

[0020] The operation control method for a multi-split system provided by the embodiments of the present invention has at least the following beneficial effects: By adding a fan coil module to the structure of the multi-split system, when the internal ambient temperature reaches the dew point temperature in cooling mode, it is considered that there is a risk of condensation in the environment, which will inhibit the heat exchange efficiency of the radiant heat exchange module. It is difficult to quickly adjust the internal ambient temperature to the target temperature in a short time. Therefore, the fan coil module is used to accelerate the air flow inside the room, improve the mixing and convection of the air in the room, and blow the high-temperature / low-temperature gas around the radiant heat exchange module into the entire room, so as to accelerate the temperature adjustment and heat transfer in the room, improve the heating / cooling effect of the multi-split system, help to achieve rapid room temperature adjustment, and eliminate the risk of condensation in the room. It is applicable to different scenarios, especially when there is a risk of condensation in the room, it can improve the comfort of the multi-split system.

[0021] Fourthly, embodiments of the present invention provide an operation control device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor executes the program to implement the operation control method for a multi-connected system as described in the first, second, and third aspects of the embodiments above.

[0022] The operation control device provided by the embodiments of the present invention has at least the following beneficial effects: by adding a fan coil module to the structure of the multi-split system, when the internal ambient temperature differs greatly from the target temperature, the internal ambient temperature fluctuates greatly, or there is a risk of condensation in the room, the fan coil module accelerates the airflow inside the room, improves the mixing and convection of the air inside the room, and blows the high-temperature / low-temperature gas around the radiant heat exchange module into the entire interior of the room, thereby accelerating the temperature regulation and heat transfer inside the room, improving the heating / cooling effect of the multi-split system, helping to achieve rapid adjustment of the room temperature, and being applicable to different scenarios while ensuring the comfort of the multi-split system.

[0023] Fifthly, embodiments of the present invention provide a multi-connection system, including a radiant heat exchange module and a fan coil module disposed inside a room, and also including the operation control device described in the fourth aspect of the embodiments above.

[0024] The multi-split system provided by the embodiments of the present invention has at least the following beneficial effects: by adding a fan coil module to the structure of the multi-split system, when the internal ambient temperature differs greatly from the target temperature, the internal ambient temperature fluctuates greatly, or there is a risk of condensation in the room, the fan coil module accelerates the airflow inside the room, improves the mixing and convection of the air inside the room, and blows the high-temperature / low-temperature gas around the radiant heat exchange module into the entire interior of the room, thereby accelerating the temperature regulation and heat transfer inside the room, improving the heating / cooling effect of the multi-split system, helping to achieve rapid adjustment of the room temperature, and being applicable to different scenarios while ensuring the comfort of the multi-split system.

[0025] In the multi-split system provided in this embodiment of the invention, the radiant heat exchange module includes a cooling heat exchange coil installed on the wall or ceiling of the room and a floor heating heat exchange coil installed on the floor of the room. The multi-split system also includes a dew point sensor installed on the wall or ceiling corresponding to the cooling heat exchange coil.

[0026] In a sixth aspect, embodiments of the present invention provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the multi-system operation control method described in the first, second, and third aspect embodiments above.

[0027] The computer-readable storage medium provided according to embodiments of the present invention has at least the following beneficial effects: by adding a fan coil module to the structure of a multi-split system, in situations where the internal ambient temperature differs significantly from the target temperature, the internal ambient temperature fluctuates greatly, or there is a risk of condensation in the room, the fan coil module accelerates the airflow inside the room, improves the mixing and convection of the air inside the room, and blows the high-temperature / low-temperature gas around the radiant heat exchange module into the entire interior of the room, thereby accelerating the temperature regulation and heat transfer inside the room, improving the heating / cooling effect of the multi-split system, helping to achieve rapid adjustment of the room temperature, and being applicable to different scenarios while ensuring the comfort of the multi-split system.

[0028] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0029] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0031] Figure 1 This is a partial structural diagram of a multi-split system installed in a room, provided by an embodiment of the present invention;

[0032] Figure 2 This is a flowchart of the operation control method for a multi-connected system provided in an embodiment of the present invention;

[0033] Figure 3 This is provided by the embodiments of the present invention. Figure 2 The detailed steps of step S110 are shown in the diagram.

[0034] Figure 4 This is a diagram illustrating the specific steps after the fan coil module starts running, as provided in an embodiment of the present invention.

[0035] Figure 5 This is provided by the embodiments of the present invention. Figure 2 The diagram shows the specific steps following step S120.

[0036] Figure 6 This is provided by another embodiment of the present invention. Figure 2 The diagram shows the specific steps following step S120.

[0037] Figure 7 This is provided by the embodiments of the present invention. Figure 6 The diagram shows the specific steps following step S160.

[0038] Figure 8 This is a flowchart of an operation control method for a multi-connected system provided in another embodiment of the present invention;

[0039] Figure 9 This is a flowchart of an operation control method for a multi-connected system provided in another embodiment of the present invention;

[0040] Figure 10 This is a schematic diagram of the structure of an operation control device provided in an embodiment of the present invention. Detailed Implementation

[0041] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0042] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0043] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0044] A multi-split system typically refers to an air conditioning system that uses multiple indoor units to provide heating or cooling services to different spaces. Radiant air conditioning, which uses capillary tubes or radiant panels installed within the building envelope to exchange heat with the room through radiation, directly affecting objects or human bodies, offers high comfort. Therefore, current multi-split systems usually use radiant air conditioners as indoor units to regulate the air in each room. However, the comfort provided by radiant air conditioning is based on a stable environment without air convection. When faced with sudden environmental changes, such as opening doors or windows or increasing the number of people in a room, the room temperature fluctuates significantly. In such cases, the room temperature differs greatly from the target temperature. Relying on the same control methods for temperature regulation becomes inefficient, significantly prolonging the time it takes to reach the target temperature and severely impacting the user experience.

[0045] Based on this, embodiments of the present invention provide a multi-split system, an operation control method, an operation control device, and a storage medium. By adding a fan coil module to the structure of the multi-split system, when the difference between the internal ambient temperature and the target temperature is greater than a first preset value, i.e., it is considered that it is difficult to quickly adjust the internal ambient temperature to the target temperature in a short time, the fan coil module is used to accelerate the air flow inside the room, improve the mixing and convection of the air inside the room, and blow the high-temperature / low-temperature gas around the radiant heat exchange module into the entire interior of the room, so as to accelerate the temperature adjustment and heat transfer inside the room, improve the heating / cooling effect of the multi-split system, help to achieve rapid room temperature adjustment, and be applicable to different scenarios, especially when the difference between the internal ambient temperature and the target temperature is large, which can improve the comfort of the multi-split system.

[0046] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0047] Reference Figure 1 The first aspect of the present invention provides a partial structural diagram of a multi-split system installed in a room.

[0048] It is understood that a multi-split system includes a main unit, connecting valves, a manifold, and multiple radiant air conditioning systems installed in the room. The main unit is connected to each of the individual radiant air conditioning systems, and each system includes a radiant heat exchange module, a fan coil module 120, and a first sensor 110. The radiant heat exchange module can be installed on the inner surface of the room's enclosure structure, such as the ceiling, floor, or walls. Figure 1 As shown, the radiant heat exchange module can be installed on the ceiling of the room; while the fan coil module 120 can be installed near the top of the room, i.e., the ceiling, thereby accelerating airflow and reducing the feeling of draft. The fan coil module 120 can include an air inlet and an air outlet; the first sensor 110 can be installed in the room to measure the internal ambient temperature, such as on a wall. In addition, the radiant air conditioning system may also include a control module, which can be connected to the first sensor 110, the radiant heat exchange module, the fan coil module 120, and the main unit respectively. The control module can acquire the temperature measured by the first sensor 110 and receive the current target temperature of the room. Based on the relevant temperature data, it can regulate the radiant heat exchange module, the fan coil module 120, and the main unit to make the actual ambient temperature in the room approach and stabilize at the target temperature.

[0049] This invention adds a fan coil module 120 to a conventional radiant air conditioning system. By utilizing the air inlet and outlet of the fan coil module 120, the air flow in the room is accelerated in a short time, and the high-temperature / low-temperature gas around the radiant heat exchange module is blown into the entire interior of the room. This accelerates the temperature regulation and heat transfer in the room, improves the heating / cooling effect of the multi-split system, helps to achieve rapid room temperature regulation, and can be applied to different scenarios while ensuring the comfort of the multi-split system.

[0050] It is understood that the radiant heat exchange module in the radiant air conditioning system may include a cooling heat exchange coil 130 installed on the wall or ceiling of the room, and may also include a floor heating heat exchange coil 140 installed on the wall or floor of the room. When the room is operating in different modes, the cooling heat exchange coil 130 and the floor heating heat exchange coil 140 exchange heat with the air in the room to regulate the temperature in the room.

[0051] Understandably, the radiant air conditioning system also includes a dew point sensor 150, which can be installed close to the cooling heat exchange coil 130. The dew point sensor 150 can detect the dew point temperature inside the room. Since the cooling heat exchange coil 130 lowers the temperature of the inner surface of the building envelope where it is located during cooling operation, condensation is likely to occur when the internal ambient temperature is below the dew point temperature. This not only affects heat exchange efficiency but also negatively impacts the user experience due to the falling dew. Therefore, by installing the dew point sensor 150 to monitor condensation in the room in real time, the user experience can be reduced.

[0052] It will be understood by those skilled in the art that Figure 1 The structure of the multi-connected system shown does not constitute a limitation on the embodiments of the present invention. It may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0053] Based on the above-mentioned multi-connection system, various embodiments of the operation control methods of the first, second and third aspects of the present invention are proposed respectively.

[0054] Reference Figure 2 , Figure 2 This is a flowchart of a multi-connected system operation control method provided in the first aspect embodiment of the present invention. This multi-connected system operation control method can be applied to, for example... Figure 1 The multi-connected system shown includes, but is not limited to, steps S110 and S120 in its operation control method:

[0055] Step S110: Upon receiving the start control signal and the target room temperature, control the radiant heat exchange module to start operation and acquire the room's internal ambient temperature;

[0056] Step S120: When the difference between the internal ambient temperature and the target temperature is greater than the first preset value, the control fan coil module is started.

[0057] Understandably, the target temperature refers to the desired temperature level to be maintained in the room. This target temperature can be obtained by receiving external control signals from the radiant air conditioning system's control module (e.g., through user operation via knobs, buttons, or an application on a connected smart device). The internal ambient temperature refers to the current temperature level maintained in the room. This temperature can be obtained by measuring the current ambient temperature using the first sensor in the radiant air conditioning system, by receiving temperature data from a connected smart device, or by calculating it based on parameters such as ambient humidity, air pressure, heat exchange coil temperature, or compressor operating status.

[0058] Upon receiving a start control signal from the radiant heat exchange module in the room, the system can control the module to start operating. Once the target temperature for the room is received, the system can control the module based on that temperature. Furthermore, while the radiant heat exchange module is running, the system can acquire the room's internal ambient temperature and control its operation based on this temperature and the target temperature, ensuring the ambient temperature approaches and is maintained at the target temperature. The operating power or duration of the radiant heat exchange module can be controlled based on the relationship between the ambient temperature and the target temperature, or the difference between them. It should be noted that the target temperature and the ambient temperature can be reacquired at preset intervals to update the temperature data.

[0059] If the difference between the obtained internal ambient temperature and the target temperature is greater than the first preset value, it indicates that the internal ambient temperature is significantly different from the target temperature, and the current room temperature is not comfortable. The room temperature needs to be adjusted quickly. However, due to the heat exchange efficiency limitations of the radiant air conditioner, it is difficult to adjust the internal ambient temperature to the target temperature in a short time. Therefore, the fan coil module is activated. The air supply and return functions of the fan coil module accelerate the air flow in the room, which helps to evenly blow the air after heat exchange by the radiant heat exchange module into the entire room, accelerate heat transfer, and promote a uniform temperature distribution in the room.

[0060] Furthermore, before the fan coil module operates, the airflow in the room is weak. If the first sensor is used to measure the internal ambient temperature, it can only obtain the temperature of its own surrounding environment and cannot accurately measure the temperature of locations at greater distances. In other words, the internal ambient temperature measured by the first sensor deviates from the actual overall ambient temperature of the room, making it difficult to accurately represent the internal ambient temperature and thus hindering the accurate and rapid adjustment of the internal ambient temperature to the target temperature. However, after the fan coil module operates, the airflow in the room is enhanced, and air that was previously far from the first sensor can flow to its vicinity, resulting in a more even heat distribution. As a result, the internal ambient temperature measured by the first sensor is closer to the actual overall ambient temperature of the room, improving the accuracy of the internal ambient temperature data and facilitating more accurate temperature control.

[0061] It should be noted that the room's internal ambient temperature can be acquired simultaneously with the radiant heat exchange module's startup. This ambient temperature is then compared to the target temperature to determine if the difference exceeds a preset value, thus informing whether the fan coil module needs to be activated. Since the radiant heat exchange module's startup typically indicates that the user perceives the current room's internal temperature as less comfortable, meaning a significant difference exists between the ambient and target temperatures, activating the fan coil module simultaneously accelerates airflow within the room, enhancing air mixing and convection. This directs high-temperature / low-temperature air from around the radiant heat exchange module into the overall room, accelerating temperature regulation and heat transfer, improving the heating / cooling efficiency of the multi-split system, and facilitating rapid room temperature adjustment.

[0062] It should be noted that during the operation of the radiant heat exchange module, the internal ambient temperature can be detected in real time, and the target temperature of the room can be received in real time. This allows for real-time determination of whether the difference between the internal ambient temperature and the target temperature is greater than the first preset value, and timely control of the fan coil module to quickly adjust the internal ambient temperature of the room to reach the target temperature.

[0063] It should be noted that the fan coil module can be stopped when the difference between the internal ambient temperature and the target temperature is less than or equal to the first preset value.

[0064] Reference Figure 3 In the operation control method provided in the embodiments of the present invention, in Figure 2 In the illustrated step S110, step S110 includes step S130:

[0065] Step S130: When the change in internal ambient temperature within the first preset time period is detected to be greater than the second preset value, the fan coil module is controlled to start running.

[0066] Understandably, during the operation of the radiant heat exchange module, the internal ambient temperature can be monitored in real time. If the change in the internal ambient temperature within the first preset time period (such as within 5 or 10 seconds) is greater than the second preset value, it can be considered that the current room environment has changed abruptly. For example, opening the door or window of the room causes large temperature fluctuations. If relying on the heat exchange method of radiant air conditioning, it is difficult to quickly stabilize the internal ambient temperature of the room. Therefore, it is necessary to run the fan coil module to accelerate airflow, thereby improving the temperature regulation efficiency and balancing the internal ambient temperature more quickly and stabilizing it at the target temperature.

[0067] It should be noted that the change value of the internal ambient temperature within the first preset time period can be the temperature difference between the internal ambient temperature at the start time of the first preset time period and the internal ambient temperature at the end time of the first preset time period, or it can refer to the slope of the change curve of all internal ambient temperatures within the first preset time period.

[0068] It should be noted that if the change in the internal ambient temperature within the first preset time period is less than or equal to the second preset value, the operation of the fan coil module can be stopped.

[0069] It should be noted that if, while the fan coil module is running, the change in the internal ambient temperature is detected to be greater than the second preset value within the first preset time period, the current operation of the fan coil module can be maintained.

[0070] Reference Figure 4 In the operation control method provided in this embodiment of the invention, after the fan module starts running, step S140 may be included:

[0071] Step S140: When the difference between the internal ambient temperature and the target temperature drops to less than the first preset value, the control fan coil module continues to run for a second preset time and then stops running.

[0072] Understandably, while the fan coil module accelerates airflow within the room, it can create drafts that negatively impact the user experience. Therefore, the difference between the ambient temperature and the target temperature can be monitored in real time. If the difference is greater than a first preset value, the fan coil module continues to operate, further accelerating airflow to improve temperature regulation efficiency. If the difference is less than the first preset value, the fan coil module continues to operate and a timer begins. Once the timer reaches a second preset duration, the fan coil module stops. This reduces the risk of accidental shutdowns due to temperature deviations caused by airflow, resulting in a more balanced and stable temperature throughout the room. It also prevents temperature zoning and avoids frequent start-stop cycles, improving energy efficiency.

[0073] It should be noted that if the difference between the two is less than the first preset value, and the difference between the internal ambient temperature and the target temperature rises again to greater than the first preset value while the fan coil module continues to run for the second preset time, the timer can be reset and the fan coil module can continue to run until the difference between the two drops back to less than the first preset value.

[0074] It should be noted that if the difference between the two is less than the first preset value, and the difference between the internal ambient temperature and the target temperature rises again to be greater than the first preset value while the fan coil module continues to run for the second preset duration, the timing can be maintained. If the difference is still less than the first preset value when the timing duration reaches the second preset duration, the operation of the fan coil module can be stopped; otherwise, the operation of the fan coil module will continue.

[0075] Reference Figure 5 In the operation control method provided in the embodiments of the present invention, in Figure 2 Following step S120, the operation control method further includes step S150:

[0076] Step S150: When the room is running in cooling mode, when the internal ambient temperature reaches the room's dew point temperature, reduce the heat exchange power of the cooling heat exchange coil.

[0077] Understandably, when a room is in cooling mode, the cooling heat exchange coils installed on the walls or ceiling exchange heat with the air inside the room, lowering the air temperature. Over a long period, air circulation is weak, and with the continuous heat exchange by the cooling heat exchange coils, the room temperature drops, making it easy for condensation to form on the inner surface of the building envelope (walls or ceiling) where the cooling heat exchange coils are located. Therefore, by obtaining the room's dew point temperature and comparing it with the internal ambient temperature, the risk of condensation in the room can be assessed, thereby controlling the operating mode of the fan coil module.

[0078] The dew point temperature can be obtained by a pre-set dew point sensor, which can be installed on the inner surface of the same enclosure structure as the refrigeration heat exchange coil; or the dew point temperature can be calculated from the humidity and internal ambient temperature in the room, and the humidity can be obtained by a pre-set humidity sensor in the room.

[0079] When the dew point temperature is lower than the ambient temperature, there is no risk of condensation in the room, and dehumidification is unnecessary. Therefore, the room can maintain its cooling mode, meaning the cooling heat exchange coils can operate according to the current mode, maintaining the current heat exchange power. However, when the dew point temperature is higher than or equal to the ambient temperature, there is a risk of condensation in the room. If the cooling heat exchange coils continue to operate at the current power, condensation will easily accumulate, causing dripping and severely impacting the user experience. Therefore, the multi-split system can be controlled to operate in dehumidification mode, reducing the heat exchange power of the cooling heat exchange coils. This reduces the cooling output of the cooling heat exchange coils, slows down the decrease in ambient temperature, and prevents excessive condensation on the inner surfaces of the building envelope (such as the ceiling or walls) where the cooling heat exchange coils are located. Specifically, this can be achieved by reducing the operating frequency of the compressor in the multi-split system, or by controlling the valve opening of the manifold between the compressor and the cooling heat exchange coils in the multi-split system, thereby reducing the water flow between the cooling heat exchange coils and ultimately lowering their heat exchange power.

[0080] Reference Figure 6 In the operation control method provided in the embodiments of the present invention, in Figure 2 Following step S120, the operation control method further includes step S160:

[0081] Step S160: When the room is running in cooling mode, when the internal ambient temperature reaches the room's dew point temperature, control the fan coil module to run in dehumidification mode.

[0082] Understandably, when a room is in cooling mode, the cooling heat exchange coils installed on the walls or ceiling exchange heat with the air in the room, lowering the air temperature. Although the fan coil module can accelerate airflow, its operating time accounts for a relatively small portion of the total operating time of the multi-split system. Therefore, airflow is weak for extended periods, and as the cooling heat exchange coils continuously exchange heat, the room temperature decreases, making it easy for condensation to form on the inner surface of the building envelope (walls or ceiling) where the cooling heat exchange coils are located. Therefore, by obtaining the room's dew point temperature and comparing it with the ambient temperature, the risk of condensation can be assessed, allowing for the control of the fan coil module's operating mode.

[0083] When the dew point temperature is lower than the ambient temperature, there is no risk of condensation in the room, and dehumidification is unnecessary. Therefore, the room can maintain its cooling mode, meaning the fan coil module operates according to this mode. However, when the dew point temperature is higher than or equal to the ambient temperature, there is a risk of condensation, and the fan coil module needs to be switched to dehumidification mode. Specifically, operating the fan coil module in dehumidification mode involves adjusting the airflow direction and volume. By adjusting the airflow direction, the low-temperature air around the cooling coil can be evenly distributed into the room, accelerating the dehumidification process. Simultaneously, increasing the airflow volume enhances air circulation, accelerating the mixing of the low-temperature air around the cooling coil with the room's air, thus improving the dehumidification effect.

[0084] It should be noted that when the heat exchange power of the cooling heat exchange coil is reduced, that is, when the cooling heat exchange coil is in dehumidification mode, the fan coil module can also run in dehumidification mode at the same time.

[0085] Reference Figure 7 In the operation control method provided in the embodiments of the present invention, in Figure 6 Following step S160, the operation control method further includes step S170:

[0086] Step S170: When the internal ambient temperature is higher than the dew point temperature, control the fan coil module to continue running for a third preset time and then stop running, and control the cooling heat exchange coil to restore the heat exchange power to the power before the decrease.

[0087] Understandably, when the fan coil module or the cooling heat exchange coil is operating in dehumidification mode, the internal ambient temperature gradually rises. Once the internal ambient temperature exceeds the dew point (i.e., it no longer reaches the dew point), the fan coil module can continue operating and a timer will begin. When the timer reaches the third preset duration, the fan coil module will shut down. Conversely, if the cooling heat exchange coil is in dehumidification mode when the internal ambient temperature is below or equal to the dew point (i.e., its heat exchange power is reduced to raise the internal ambient temperature), the heat exchange power of the cooling heat exchange coil can be restored to its previous level once the internal ambient temperature no longer reaches the dew point. Specifically, if the internal ambient temperature is above the dew point, the cooling heat exchange coil can continue operating at low power for the third preset duration before its power is restored to its previous level.

[0088] Therefore, the multi-split system operation control method provided in this embodiment of the invention adds a fan coil module to the structure of the multi-split system. When the internal ambient temperature differs significantly from the target temperature, the internal ambient temperature fluctuates greatly, or there is a risk of condensation in the room, the fan coil module accelerates the airflow inside the room, improves the mixing and convection of the air inside the room, and blows the high-temperature / low-temperature gas around the radiant heat exchange module into the entire interior of the room. This accelerates the temperature regulation and heat transfer inside the room, improves the heating / cooling effect of the multi-split system, helps to achieve rapid room temperature regulation, and can be applied to different scenarios while ensuring the comfort of the multi-split system.

[0089] Reference Figure 8 , Figure 8 This is a flowchart of a multi-connected system operation control method provided in a second aspect embodiment of the present invention. This multi-connected system operation control method can be applied to, for example... Figure 1 The multi-connected system shown includes, but is not limited to, steps S210 and S220 in its operation control method:

[0090] Step S210: Upon receiving the start control signal and the target room temperature, control the radiant heat exchange module to start operation according to the target temperature and obtain the internal ambient temperature of the room;

[0091] Step S220: When the change in internal ambient temperature within the first preset time period is detected to be greater than the second preset value, the fan coil module is controlled to start running.

[0092] Understandably, upon receiving the start control signal for the radiant heat exchange module in the room, the system can control the module to start and operate. Furthermore, upon receiving the target temperature for the room, the system can control the module based on that target temperature. Additionally, while the radiant heat exchange module is running, the system can acquire the room's internal ambient temperature and control its operation based on this temperature and the target temperature, ensuring the internal ambient temperature approaches and is maintained at the target temperature. The operating power or duration of the radiant heat exchange module can be controlled based on the relationship between the internal ambient temperature and the target temperature, or the difference between them. It should be noted that the target temperature and the internal ambient temperature can be reacquired at preset intervals to update the temperature data.

[0093] While the radiant heat exchange module is running, it can acquire and monitor the room's internal ambient temperature in real time. It judges the temperature change within a first preset time period to determine whether the fan coil module needs to be activated. If the temperature change within the first preset time period (e.g., 5 or 10 seconds) exceeds a second preset value, it indicates a sudden change in the room's environment. For example, opening a door or window can cause large temperature fluctuations. Relying solely on radiant air conditioning for heat exchange makes it difficult to quickly stabilize the room's internal temperature. Therefore, the fan coil module needs to be activated to accelerate airflow, improve temperature regulation efficiency, and more quickly balance and stabilize the internal temperature at the target temperature.

[0094] It should be noted that if the change in the internal ambient temperature within the first preset time period is less than or equal to the second preset value, the operation of the fan coil module can be stopped; or the fan coil module can be controlled to continue running for the second preset time period and then stop running.

[0095] It should be noted that if, while the fan coil module is running, the change in the internal ambient temperature is detected to be greater than the second preset value within the first preset time period, the current operation of the fan coil module can be maintained.

[0096] It should be noted that when the difference between the internal ambient temperature and the target temperature is less than the first preset value, the control fan module will continue to run for a second preset time and then stop running.

[0097] Reference Figure 9 , Figure 9 This is a flowchart of a multi-connected system operation control method provided in a third aspect embodiment of the present invention. This multi-connected system operation control method can be applied to, for example... Figure 1 The multi-connected system shown includes, but is not limited to, steps S310 and S320 in its operation control method:

[0098] Step S310: Upon receiving the start control signal and the target room temperature, control the radiant heat exchange module to start operation according to the target temperature and obtain the internal ambient temperature of the room;

[0099] Step S320: When the radiant heat exchange module is operating in cooling mode, and the internal ambient temperature reaches the room's dew point temperature, control the fan coil module to operate in dehumidification mode and reduce the heat exchange power of the cooling heat exchange coil.

[0100] Understandably, due to the weak air circulation in the room over a long period, and the constant changes in air pressure, humidity, and temperature, as the radiant heat exchange module continuously operates in cooling mode (i.e., the cooling heat exchange coil constantly exchanging heat), the room temperature drops, and condensation easily forms on the inner surface of the building envelope (i.e., walls or roof) where the cooling heat exchange coil is located. Therefore, by obtaining the room's dew point temperature and comparing it with the internal ambient temperature, the risk of condensation in the room can be assessed, thereby controlling the operation mode of the fan coil module.

[0101] When the dew point temperature is lower than the ambient temperature, there is no risk of condensation in the room, and dehumidification is unnecessary. Therefore, the room can maintain its cooling mode, meaning the cooling heat exchange coil and fan coil module can operate according to the current mode. The cooling heat exchange coil maintains its current heat exchange power, while the fan coil module can be shut down. However, when the dew point temperature is higher than or equal to the ambient temperature, there is a risk of condensation in the room. If the cooling heat exchange coil continues to operate at its current power, condensation will easily accumulate, causing dripping and severely impacting the user experience. Therefore, the multi-split system can be controlled to operate in dehumidification mode, meaning the cooling heat exchange coil and fan coil module operate simultaneously in dehumidification mode. This reduces the heat exchange power of the cooling heat exchange coil, thereby reducing the cooling output and slowing down the decrease in ambient temperature. This also prevents excessive condensation on the inner surfaces of the building envelope (such as the ceiling or walls) where the cooling heat exchange coil is located. Specifically, this can be achieved by reducing the operating frequency of the compressor in a multi-split system, or by controlling the valve opening of the manifold between the compressor and the refrigeration heat exchange coils in the multi-split system to reduce the water flow between the refrigeration heat exchange coils, thereby reducing the heat exchange power of the refrigeration heat exchange coils. The fan coil module operating in dehumidification mode can refer to adjusting the air outlet direction and air volume of the fan coil module. By adjusting the air outlet direction, the low-temperature air around the refrigeration heat exchange coils can be evenly distributed into the room space, accelerating the dehumidification process. Simultaneously, increasing the air volume enhances airflow and accelerates the mixing of the low-temperature air around the refrigeration heat exchange coils with the room air, improving the dehumidification effect.

[0102] It should be noted that when the internal ambient temperature is higher than the dew point temperature, the fan coil module will continue to operate for a third preset time before stopping, and the heat exchange power of the cooling heat exchange coil will be restored to its previous level. Specifically, when the internal ambient temperature is higher than the dew point temperature, meaning the internal ambient temperature no longer reaches the dew point temperature, the fan coil module can continue to operate and a timer will start. When the timer reaches the third preset time, the fan coil module will be shut down. If the internal ambient temperature is lower than or equal to the dew point temperature, and the cooling heat exchange coil is in dehumidification mode, meaning the heat exchange power of the cooling heat exchange coil is reduced to raise the internal ambient temperature, then when the internal ambient temperature no longer reaches the dew point temperature, the heat exchange power of the cooling heat exchange coil can be restored to its previous level. Specifically, when the internal ambient temperature is higher than the dew point temperature, the cooling heat exchange coil can continue to operate at low power for a third preset time before its heat exchange power is restored to its previous level.

[0103] It should be noted that when the change in internal ambient temperature within the first preset time period is greater than the second preset value, the fan coil module can be controlled to start running; when the change in internal ambient temperature within the first preset time period is less than or equal to the second preset value, the fan coil module can be stopped running, or the fan coil module can continue to run for the second preset time period and then stop running.

[0104] The second preset duration can be equal to the third preset duration.

[0105] Fourthly, refer to Figure 10 , Figure 10 This is a schematic diagram of the structure of a running control device provided in an embodiment of the present invention. The embodiment of the present invention provides a running control device 1000, including a memory 1020, a processor 1010, and a computer program stored in the memory 1020 and executable on the processor 1010. The processor 1010 executes the program to implement the running control method for a multi-connected system as described in the first to third aspects of the embodiments above, for example, executing... Figure 2 Method steps S110 to S120, or execution Figure 3 Method step S130, or execution Figure 4 Method step S140, or execution Figure 5 Method step S150, or execution Figure 6 Method step S160, or execution Figure 7 Method step S170, or execution Figure 8 Method steps S210 to S220, or execution Figure 9 Method steps S310 to S320.

[0106] According to the operation control device provided in the embodiment of the present invention, the operation of the radiative heat exchange module is controlled by the target temperature and the internal ambient temperature measured by the first sensor. After the operation reaches the first preset time, the operation of the fan coil module is controlled to accelerate the heat flow in the room, which helps to distribute the heat in the room evenly and improve the comfort of the indoor environment. Thus, the air inlet temperature of the fan coil module measured by the second sensor set at the air inlet of the fan coil module can not only reflect the ambient temperature at a location different from that of the first sensor, but also roughly reflect the actual temperature in the room. Therefore, the air inlet temperature of the fan coil module can be used to compensate for the internal ambient temperature. By combining the temperature of the air flowing in the room and the ambient temperature at different locations, the compensated internal ambient temperature can be closer to the actual ambient temperature in the room, reflecting the heat radiation in the room. This allows for more accurate parameters to be obtained for more precise temperature control, which helps to maintain the ambient temperature in the room at the target temperature and achieve a more accurate temperature control effect.

[0107] Fifthly, embodiments of the present invention provide a multi-connection system, including a radiant heat exchange module and a fan coil module disposed inside a room, and also including the operation control device described in the fourth aspect of the embodiments above.

[0108] The multi-split system provided by the embodiments of the present invention has at least the following beneficial effects: by adding a fan coil module to the structure of the multi-split system, when the internal ambient temperature differs greatly from the target temperature, the internal ambient temperature fluctuates greatly, or there is a risk of condensation in the room, the fan coil module accelerates the airflow inside the room, improves the mixing and convection of the air inside the room, and blows the high-temperature / low-temperature gas around the radiant heat exchange module into the entire interior of the room, thereby accelerating the temperature regulation and heat transfer inside the room, improving the heating / cooling effect of the multi-split system, helping to achieve rapid adjustment of the room temperature, and being applicable to different scenarios while ensuring the comfort of the multi-split system.

[0109] It is understood that the radiant heat exchange module in a radiant air conditioning system can include cooling heat exchange coils installed on the walls or ceiling of the room, and can also include underfloor heating heat exchange coils installed on the walls or floor of the room. When the room is operating in different modes, the cooling heat exchange coils and the underfloor heating heat exchange coils exchange heat with the air in the room, respectively, to regulate the room temperature. Specifically, when the room is operating in cooling mode, the cooling heat exchange coils work and exchange heat with the air in the room, lowering the air temperature; while when the room is operating in heating mode, the underfloor heating heat exchange coils work and exchange heat with the air in the room, raising the air temperature.

[0110] Understandably, radiant air conditioning systems also include dew point sensors. These sensors can be installed close to the cooling heat exchange coils and can detect the dew point temperature inside the room. When the room is operating in cooling mode, the cooling heat exchange coils lower the temperature of the inner surface of the building envelope where they are located. When the internal ambient temperature is below the dew point temperature, condensation easily occurs, affecting not only heat exchange efficiency but also the user experience due to the falling dew. Therefore, by installing dew point sensors to monitor condensation in the room in real time, the impact of condensation on the user experience can be reduced.

[0111] Sixthly, embodiments of the present invention provide a computer-readable storage medium storing computer-executable instructions for causing a computer to execute the operation control method of the multi-connected system as described in the first to third aspects above, for example, executing... Figure 2 Method steps S110 to S120, or execution Figure 3 Method step S130, or execution Figure 4 Method step S140, or execution Figure 5 Method step S150, or execution Figure 6 Method step S160, or execution Figure 7 Method step S170, or execution Figure 8 Method steps S210 to S220, or execution Figure 9 Method steps S310 to S320.

[0112] According to the computer-readable storage medium provided in the embodiments of the present invention, by adding a fan coil module to the structure of a multi-split system, in situations where the internal ambient temperature differs significantly from the target temperature, the internal ambient temperature fluctuates greatly, or there is a risk of condensation in the room, the fan coil module accelerates the airflow inside the room, improves the mixing and convection of the air inside the room, and blows the high-temperature / low-temperature gas around the radiant heat exchange module into the entire interior of the room, thereby accelerating the temperature regulation and heat transfer inside the room, improving the heating / cooling effect of the multi-split system, helping to achieve rapid room temperature regulation, and being applicable to different scenarios while ensuring the comfort of the multi-split system.

[0113] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which may include computer storage media or non-transitory media and communication media or transient media. As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc DVD or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0114] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A method for controlling the operation of a multi-connected system, characterized in that, The multi-split system includes a radiant heat exchange module and a fan coil module installed inside the room, and the method includes: Upon receiving a start control signal and the target temperature of the room, the system controls the radiant heat exchange module to start operation and acquire the internal ambient temperature of the room. When the difference between the internal ambient temperature and the target temperature is greater than a first preset value, the fan coil module is controlled to start operation.

2. The operation control method according to claim 1, characterized in that, Also includes: When the change in the internal ambient temperature within a first preset time period is detected to be greater than a second preset value, the fan coil module is controlled to start operation.

3. The operation control method according to claim 1 or 2, characterized in that, After the fan coil module starts running, when the difference between the internal ambient temperature and the target temperature drops to less than the first preset value, the fan coil module is controlled to continue running for a second preset time and then stop running.

4. The operation control method according to claim 1, characterized in that, The radiant heat exchange module includes a cooling heat exchange coil installed on the wall or ceiling of the room. When the room is in cooling mode, and the internal ambient temperature reaches the dew point temperature of the room, the heat exchange power of the cooling heat exchange coil is reduced.

5. The operation control method according to claim 4, characterized in that, When the internal ambient temperature reaches the dew point temperature of the room, the fan coil module is controlled to operate in dehumidification mode.

6. The operation control method according to claim 5, characterized in that, When the internal ambient temperature is higher than the dew point temperature, the fan coil module is controlled to continue running for a third preset time and then stop running, and the heat exchange power of the cooling heat exchange coil is controlled to return to the power before the decrease.

7. A method for controlling the operation of a multi-connected system, characterized in that, The multi-split system includes a radiant heat exchange module and a fan coil module installed inside the room, and the method includes: Upon receiving a start control signal and the target temperature of the room, the system controls the radiant heat exchange module to start operation based on the target temperature and acquires the internal ambient temperature of the room. When the change in the internal ambient temperature within a first preset time period is detected to be greater than a second preset value, the fan coil module is controlled to start operation.

8. A method for operating and controlling a multi-connected system, characterized in that, The multi-split system includes a radiant heat exchange module and a fan coil module installed inside the room. The radiant heat exchange module includes cooling heat exchange coils installed on the walls or ceiling of the room. The method includes: Upon receiving a start control signal and the target temperature of the room, the system controls the radiant heat exchange module to start operation based on the target temperature and acquires the internal ambient temperature of the room. When the radiant heat exchange module is operating in cooling mode, and the internal ambient temperature reaches the dew point temperature of the room, the fan coil module is controlled to operate in dehumidification mode, and the heat exchange power of the cooling heat exchange coil is reduced.

9. An operation control device, characterized in that, The system includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the operation control method for a multi-connected system as described in any one of claims 1 to 8.

10. A multi-connection system, characterized in that, It includes a radiant heat exchange module and a fan coil module installed inside the room, as well as the operation control device as described in claim 9.

11. The multi-connection system according to claim 10, characterized in that, The radiant heat exchange module includes a cooling heat exchange coil installed on the wall or ceiling of the room and a floor heating heat exchange coil installed on the floor of the room. The multi-split system also includes a dew point sensor installed on the wall or ceiling corresponding to the cooling heat exchange coil.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions for causing a computer to perform the operation control method for a multi-connected system as described in any one of claims 1 to 8.

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