GROUND-EMBEDDED AIR CONDITIONING SYSTEM AND CONTROL METHOD THEREFOR, AND STORAGE MEDIUM

Abstract

 The present application relates to the field of indoor cooling and heating technology, and provides a ground-embedded air-conditioning system, a control method for the ground-embedded air-conditioning system and a computer-readable storage medium, so as to improve the efficiency of cooling and heating. The ground-embedded air-conditioning system, including a controller, an empty floor space layer, and a cold/heat source and at least one fan-coil assembly electrically connected to the controller. An air convective circulation channel is formed by the empty floor space layer and an indoor space above a floor. A supply vent and a return vent are provided in the empty floor space layer, and the at least one fan-coil assembly is arranged at positions of the supply vent and the return vent. The controller controls the cold/heat source to provide a cold or heat source to the fan-coil assembly at the return vent. Air in the indoor space is driven by the fan-coil assembly at the supply vent under the control of the controller, to enter the fan-coil assembly at the return vent for heat exchange, pass through the empty floor space layer and the fan-coil assembly at the supply vent, and enter the indoor space, thereby to realize a cooling or heating cycle of the air in the convective circulation channel.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims a priority to Chinese Patent Application No. 2023100709712 filed on January 13, 2023 and entitled "GROUND-EMBEDDED AIR-CONDITIONING SYSTEM AND CONTROL METHOD FOR THE SAME, AND COMPUTER-READABLE STORAGE MEDIUM", a priority to Chinese Patent Application No. 202321040749X filed on May 04, 2023 and entitled "FAN COIL FACILITATING DRAINAGE", and a priority to Chinese Patent Application No. 202321040724X filed on May 04, 2023 and entitled "EARTH-COVERED INDOOR AIR-CONDITIONING UNIT". Each of the above-listed applications is incorporated in its entirety by reference herein.

TECHNICAL FIELD

[0002] The present application relates to the field of indoor cooling and heating technology, in particular to a ground-embedded air-conditioning system, a control method for the ground-embedded air-conditioning system and a computer-readable storage medium.

BACKGROUND

[0003] In practical applications, a conventional air-conditioning system is to realize a coupling control of a temperature and humidity of indoor air, and thus such issues as high carbon dioxide concentration, excessive dehumidification, poor body feeling, and high noise may occur. Therefore, a five-constant air-conditioning system was born, so as to enable an indoor room to be a healthy ecological living environment with constant temperature, constant humidity, constant oxygen, constant cleanliness, and constant static.

[0004] Currently, in the five-constant air-conditioning system, an underground pipe and a fan coil are buried under the floor in advance for cooling and heating. In this regard, it has been realized by the inventor that when using the existing underground laying or buried manners, a heat transfer efficiency and a cold transfer efficiency of the floor surface are adversely affected due to that the pipe is not in direct contact with the floor, thereby to provide a poor cooling and heating efficiency.

SUMMARY

[0005] The present application provides a ground-embedded air-conditioning system, a control method for the ground-embedded air-conditioning system and a computer-readable storage medium, so as to improve the efficiency of cooling and heating.

[0006] In a first aspect, the present application provides a ground-embedded air-conditioning system, including a controller, an empty floor space layer, and a cold/heat source and at least one fan-coil assembly electrically connected to the controller. An air convective circulation channel is formed by the empty floor space layer and an indoor space above a floor. A supply vent and a return vent are provided in the empty floor space layer, and the at least one fan-coil assembly is arranged at positions of the supply vent and the return vent. The controller controls the cold/heat source to provide a cold or heat source to the fan-coil assembly at the return vent. Air in the indoor space is driven by the fan-coil assembly at the supply vent under the control of the controller, to enter the fan-coil assembly at the return vent for heat exchange, pass through the empty floor space layer and the fan-coil assembly at the supply vent, and enter the indoor space, thereby to realize a cooling or heating cycle of the air in the convective circulation channel.

[0007] In a possible embodiment of the present application, the fan-coil assembly is a split-type and embedded fan-coil assembly.

[0008] In a possible embodiment of the present application, the fan-coil assembly includes an air supply module and an air return module, the air supply module is disposed at the position of the supply vent, and the air return module is disposed at the position of the return vent.

[0009] In a possible embodiment of the present application, the air return module includes a first surface cooler, configured to perform heat exchange for the air in the indoor space to obtain cold air or hot air.

[0010] In a possible embodiment of the present application, the empty floor space layer is composed of a floor layer, a calcium silicate board, a support frame and a thermal insulation layer arranged in an order from top to bottom, the support frame is located between the calcium silicate board and the thermal insulation layer, and configured to support the floor layer and the calcium silicate board, and form a height of an air duct corresponding to the empty floor space layer, thereby to form an overall air duct through the empty floor space layer.

[0011] In a possible embodiment of the present application, a plurality of hollowed-out grooves is provided in the support frame, and a U-type notch is arranged at each one of two ends of the support frame, where the U-type notch is configured to enable the support frame to be fastened into the calcium silicate board and the thermal insulation layer, and the hollowed-out grooves are configured to adjust a length of the support frame.

[0012] In a possible embodiment of the present application, the empty floor space layer further includes an air duct board, the air duct board and the support frame are combined to form an independent air duct, and the supply vent and the return vent are located at both ends of the independent air duct.

[0013] In a possible embodiment of the present application, independent air ducts having different preset paths are arranged between the supply vent and the return vent.

[0014] In a possible embodiment of the present application, the ground-embedded air-conditioning system further includes an air processing assembly arranged on a fresh air supply duct and outside the indoor space, the air processing assembly is configured to introduce fresh air from the outside, and perform humidification or dehumidification processing on the fresh air, and electrically connected to the controller.

[0015] In a possible embodiment of the present application, the air processing assembly includes a fan, a humidification module, a first fresh air damper and a second surface cooler, the fan is configured to drive the fresh air to pass through the humidification module for humidification, and drive the humidified fresh air to enter the fresh air supply duct through the first fresh air damper, and the first fresh air damper is configured to control a volume of the humidified fresh air entering the fresh air supply duct; or, the fan is configured to drive the fresh air to pass through the second surface cooler for dehumidification, and drive the dehumidified fresh air to enter the fresh air supply duct through the first fresh air damper, and the first fresh air damper is configured to control a volume of the dehumidified fresh air entering the fresh air supply duct.

[0016] In a possible embodiment of the present application, the air processing assembly further includes a filter mesh, a negative oxygen ion generator and a PM2.5 air filter, and the fresh air passes through the filter mesh, the negative oxygen ion generator and the PM2.5 air filter sequentially, and then enters the second surface cooler for dehumidification.

[0017] In a possible embodiment of the present application, the air return module further includes a second fresh air damper arranged on the fresh air supply duct, and the second fresh air damper is configured to control a volume of the dehumidified fresh air entering the empty floor space layer.

[0018] In a possible embodiment of the present application, the ground-embedded air-conditioning system further includes an exhaust module arranged on a wall at a preset height of the indoor space and connected to the outdoor space, the exhaust module is configured to exhaust the air in the indoor space to the outdoor space, and electrically connected to the controller.

[0019] In a possible embodiment of the present application, a distance between the supply vent and the return vent is greater than or equal to a preset distance.

[0020] In a possible embodiment of the present application, the supply vent includes an air supply cover and an air supply filter, the air supply filter is arranged above the fan-coil assembly, and the air supply cover is arranged above the air supply filter.

[0021] In a second aspect, the present application provides a control method for the ground-embedded air-conditioning system, including: controlling the cold/heat source to output a target source through the controller in response to a mode control instruction, where the target source is the cold or heat source, controlling the fan-coil assembly at the supply vent of each indoor space through the controller to drive the air in the indoor space into the fan-coil assembly at the return vent, controlling the fan-coil assembly at the return vent of each indoor space through the controller to perform heat exchange on the air in each indoor space in accordance with the target source, to obtain target air, wherein the target air is cold air or hot air, controlling the fan-coil assembly at the supply vent of each indoor space through the controller to drive the target air to enter each indoor space sequentially through the empty floor space layer of each indoor space and the fan-coil assembly at the supply vent, thereby to realize a cooling or heating cycle of the air in the convective circulation channel.

[0022] In a possible embodiment of the present application, when the target air passes through the empty floor space layer, the target air is in dynamic flow contact with the calcium silicate board and the floor layer of the empty floor space layer, thereby to cool or heat the indoor space in a surface radiation manner.

[0023] In a possible embodiment of the present application, the control method further includes controlling the cold/heat source to pass through the air processing assembly to dehumidify the fresh air introduced from the outside of each indoor space through the controller in a case that the mode control instruction is used to instruct to cool each indoor space.

[0024] In a third aspect, the present application provides a computer-readable storage medium having stored thereon instructions, the instructions, when running on a computer, cause the computer to perform the following steps: controlling the cold/heat source to output a target source through the controller in response to a mode control instruction, where the target source is a cold or heat source, controlling the fan-coil assembly at the supply vent of each indoor space through the controller to drive the air in the indoor space into the fan-coil assembly at the return vent, controlling the fan-coil assembly at the return vent of each indoor space through the controller to perform heat exchange on the air in each indoor space in accordance with the target source, to obtain target air, wherein the target air is cold air or hot air, controlling the fan-coil assembly at the supply vent of each indoor space through the controller to drive the target air to enter each indoor space sequentially through the empty floor space layer of each indoor space and the fan-coil assembly at the supply vent, thereby to realize a cooling or heating cycle of the air in the convective circulation channel.

[0025] In a possible embodiment of the present application, the instructions, when executed by a processor, cause the processor to further perform the following steps: controlling the cold/heat source to pass through the air processing assembly to dehumidify the fresh air introduced from the outside of each indoor space through the controller in a case that the mode control instruction is used to instruct to cool each indoor space.

[0026] In the technical solution of the present application, the ground-embedded air-conditioning system is provided. The ground-embedded air-conditioning system includes a controller, an empty floor space layer, a cold/heat source electrically connected to the controller, and at least one fan-coil assembly. An air convective circulation channel is formed by the empty floor space layer and an indoor space above a floor. A supply vent and a return vent are provided in the empty floor space layer, and the at least one fan-coil assembly is arranged at positions of the supply vent and the return vent. The controller controls the cold/heat source to provide a cold or heat source to the fan-coil assembly at the return vent. Air in the indoor space is driven by the fan-coil assembly at the supply vent under the control of the controller, to enter the fan-coil assembly at the return vent for heat exchange, pass through the empty floor space layer and the fan-coil assembly at the supply vent, and enter the indoor space, thereby to realize a cooling or heating cycle of the air in the convective circulation channel. In the embodiments of the present application, the controller controls the cold/heat source to provide the cold or heat source to the fan-coil assembly at the return vent, and the fan-coil assembly at the supply vent is controlled by the controller to drive the air in the indoor space into the fan-coil assembly at the return vent for heat exchange. Next, the air passes through the empty floor space layer and the fan-coil assembly at the supply vent sequentially, and then enters the indoor space, it is able to improve the heat transfer efficiency and cooling efficiency of the floor surface, and realize the cooling or heating cycle of the indoor space, thereby to improve the efficiency of cooling and heating.

BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 

Fig. 1 is a sectional view showing the layout of a ground-embedded air-conditioning system in an indoor space according to the embodiments of the present application;

Fig. 2 is a top view of a supply vent, a return vent and an overall air duct according to the embodiments of the present application;

Fig. 3 is a sectional view showing an independent air duct formed by air duct board and a support frame according to the embodiments of the present application;

Fig. 4 is a top view of the supply vent, the return vent and independent air duct according to the embodiments of the present application;

Fig. 5 is a sectional view showing an air processing assembly and a fresh air supply duct according to the embodiments of the present application;

Fig. 6 is a flow chart of a control method for the ground-embedded air-conditioning system according to the embodiments of the present application;

Fig. 7 is a schematic view showing an electrical connection of the ground-embedded air-conditioning system;

Fig. 8 is a top view of the ground-embedded air-conditioning system applied to multiple indoor spaces;

Fig. 9 is a schematic view showing a case where the cold/heat source is the heat pump water module;

Fig. 10 is a schematic view showing a heat pump water module having a closed type energy storage function;

Fig. 11 is a schematic view showing the heat pump water module having an open type energy storage function;

Fig. 12 is a schematic view showing the fluorine machine module for refrigerating;

Fig. 13 is a schematic view showing the fluorine machine module for heating;

Fig. 14 is a structural diagram of an air supply module according to the embodiments of the present application;

Fig. 15 is a top view of the air supply module according to the embodiments of the present application;

Fig. 16 is a schematic view showing a drip tray and a surface cooler according to the embodiments of the present application;

Fig. 17 is a sectional view of the air supply module according to the embodiments of the present application;

Fig. 18 is an exploded view of the ground-embedded air-conditioning system according to the embodiments of the present application;

Fig. 19 is a sectional view showing the layout of the ground-embedded air-conditioning system in a room according to the embodiments of the present application;

Fig. 20 is another sectional view showing the layout of the ground-embedded air-conditioning system in a room according to the embodiments of the present application;

Fig. 21 is a sectional view showing a combination of a floor layer, the air return module and air supply module according to the embodiments of the present application;

Fig. 22 is a sectional view showing the air return module according to the embodiments of the present application;

Fig. 23 is a sectional view showing the air return module according to the embodiments of the present application;

Fig. 24 is another sectional view of the air supply module according to the embodiments of the present application.

DETAILED DESCRIPTION

[0028] The present application provides a ground-embedded air-conditioning system, a control method for the ground-embedded air-conditioning system and a computer-readable storage medium, so as to improve the efficiency of cooling and heating.

[0029] Terms such as "first", "second", "third" and "fourth" (if exists) in the description, claims and the drawings of the present application are used to differentiate similar objects, and not necessarily used to describe a specific sequence or order. It should be appreciated that the data used in this way may be interchanged under an appropriate circumstance, so that the embodiments of the present application described herein may be implemented in a sequence other than those illustrated or described herein. Moreover, terms "include", "have" and any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, system, product or device including a series of steps or units includes not only those steps or elements, but also other steps or units not explicitly listed, or steps or units inherent in the process, method, system, product or device.

[0030] To facilitate the understanding, a description about a structure of the ground-embedded air-conditioning system in the embodiments of the present application will be given below. Referring to Fig. 1, Fig. 1 is a sectional view showing the layout of the ground-embedded air-conditioning system in an indoor space according to the embodiments of the present application. The ground-embedded air-conditioning system includes a controller, an empty floor space layer 101, and a cold/heat source and at least one fan-coil assembly 102 electrically connected to the controller. An air convective circulation channel is formed by the empty floor space layer and an indoor space above a floor. A supply vent 103 and a return vent 104 are provided in the empty floor space layer 101, and the at least one fan-coil assembly 102 is arranged at positions of the supply vent 103 and the return vent 104. The controller controls the cold/heat source to provide a cold or heat source to the fan-coil assembly 102 at the return vent 104. Air in the indoor space is driven by the fan-coil assembly 102 at the supply vent 103 under the control of the controller, to enter the fan-coil assembly 102 at the return vent 104 for heat exchange, pass through the empty floor space layer 101 and the fan-coil assembly 102 at the supply vent 103, and enter the indoor space, thereby to realize a cooling or heating cycle of the air in the convective circulation channel.

[0031] In the embodiment of the present application, the fan-coil assembly 102 is a split-type and embedded fan-coil assembly.

[0032] In the embodiment of the present application, the fan-coil assembly 102 includes an air supply module 1021 and an air return module 1022, the air supply module 1021 is disposed at the position of the supply vent 103, and the air return module 1022 is disposed at the position of the return vent 104.

[0033] Specifically, the air return module 1022 includes a first surface cooler 10221 configured to perform heat exchange for the air in the indoor space to obtain cold air or hot air.

[0034] It should be appreciated that the air supply module 1021 includes a forced fan 10211.

[0035] In the embodiment of the present application, the empty floor space layer 101 is composed of a floor layer 1011, a calcium silicate board 1012, a support frame 1013 and a thermal insulation layer 1014 arranged in an order from top to bottom, the support frame 103 is located between the calcium silicate board 102 and the thermal insulation layer 1014, and configured to support the floor layer 1011and the calcium silicate board 1012, and form a height of an air duct corresponding to the empty floor space layer101, thereby to form an overall air duct through the empty floor space layer 101.

[0036] It should be appreciated that, when passing through the empty floor space layer, the cold or hot air is in dynamic flow contact with the calcium silicate board and the floor layer, thereby to cool or heat the indoor space in a surface radiation manner.

[0037] A material of the support frame may be determined according to an actual application scenario. The support frame may be made of high-strength engineering plastic or high-strength engineering steel. By way of non-limiting examples, a U-type notch is arranged at each one of two ends of the support frame, so as to enable the support frame to be fastened into the calcium silicate board and the thermal insulation layer. A plurality of hollowed-out grooves is provided in the support frame, so as to break off the support frame according to an actual laying scenario, thereby to adjust a length of the support frame.

[0038] In practical applications, the air supply module 1021 specifically includes a housing 1 and a surface cooler 2 disposed in the housing 1, as shown in Figs. 14-17. The surface cooler 2 is a finned surface cooler, and the hot or cooling water supplied by an external device heats or cools the indoor air entering the fan-coil assembly.

[0039] A drip tray 3 is arranged in the housing 1, and a diversion channel 31 is arranged in the drip tray 3. A supporting protrusion 32 (referring to Fig. 3) is integrally formed with the drip tray 3 or a split-type supporting board 33 (referring to Fig. 4) is inserted into the drip tray 3.

[0040] An inner chamber of the housing 1 is divided by the supporting protrusion 32 or the supporting board 33 into a first chamber 13 and a second chamber 14. The housing 1 is provided with an air inlet 11 and an air outlet 12 communicating with the first chamber 13, the air inlet 11 is arranged on the top of the housing 1, and the air outlet 12 is arranged on a side surface of the housing 1.

[0041] The diversion channel 31 performs diversion from the first chamber 13 to the second chamber 14, and is provided with downwardly inclined diversion members on both sides of a diversion direction. The diversion members include a first diversion member 34 and a second diversion member 35, the first diversion member 34 is arranged on a side of the diversion channel 31 close to the air outlet 12, and the second diversion member 35 extends towards the surface cooler 2 and abuts against the top of the casing 1.

[0042] A plurality of positioning protrusions 36 are arranged on a diversion surface of the second diversion member 35, and the positioning protrusions 36 are configured to support the surface cooler 2. The diversion surface of the second diversion member 35 is in a downwardly concave arc shape.

[0043] A sink 37 is provided at the end of the diversion channel 31 located in the second chamber 14, and a water collection cavity 38 concaved downwardly is further provided in the sink 37. A water level switch 4 for detecting a height of a water level and a water pump 5 for pumping water in accordance with a signal of the water level switch 4 are provided in the water collection cavity 38. A controller 6 is further arranged in the fan-coil assembly, and the controller 6 is electrically connected to the water level switch 4 and the water pump 5, and configured to receive and process the signal of the water level switch 4, so as to control the water pump 5 to be started and turned off.

[0044] The surface cooler 2 is arranged in the first chamber 13, and connected to the supporting protrusion 32 or the supporting board 33, so as to be horizontally arranged above the drip tray 3. In this regard, condensed water generated during the heat exchange of the surface cooler 2 drips into the drip tray 3 under the action of gravity and is discharged in time. The surface cooler 2 communicates with external water supply through a connecting pipe 21 in the second chamber 14. The connecting pipe 21 is located above the drip tray 3, that is, a projection of the connecting pipe 21 in a vertical direction is within a range of the drip tray 3. When water leakage occurs at a connecting point, dripping water directly falls into the drip tray 3, so as to prevent other structures such as the surface cooler 2 from being polluted.

[0045] A draining connector 51 is arranged in the housing 1, and an inner end thereof is located in the second chamber 14, and an outer end thereof is exposed to the outer side of the housing 1. A water outlet of the water pump 5 communicates with a draining pipe 52, and an end of the draining pipe 52 is connected to the inner end of the draining connector 51, and the inner end of the draining connector 51 is located above the drip tray 3. The water outlet is connected to the draining pipe 52 at a position above the drip tray 3, and there is an offset between an projection of the position in the vertical direction onto the drip tray 3 and the projection of the connecting pipe 21 in the vertical direction onto the drip tray 3, so it is able for the drip tray 3 to collect leaked water droplets in time, thereby to maintain the cleanliness inside the cavity.

[0046] During the operation of the fan-coil assembly, the external device forms a negative pressure at the air outlet, so as to drive the indoor air into the first chamber through the air inlet, and exit the fan-coil assembly through the air outlet after being heated or cooled by the surface cooler. At the same time, an external water supply system supplies hot or cooling water to the surface cooler in circulated manner, thereby realizing the heating or cooling function of the surface cooler. Therefore, during operation, the surface cooler generates a large amount of condensed water, and the condensed water either drops directly into the drip tray, or flows into the drip tray through the supporting protrusion, supporting board or positioning protrusion. The condensed waste water flows along the diversion channel to the second chamber, and finally gathers in the water collection cavity. At this time, the water level switch detects a rising water level, and the controller controls the water pump to be turned on. The water pump pumps the waste water out of the water collection cavity and discharges it out of the fan coil assembly through the draining pipe. In addition, water leakage occurs easily at a position where the surface cooler is connected to the connecting pipe, a position where the water pump is connected to the draining pipe, and a position where the draining pipe is connected to the draining connector, and the dripping waste water drips into the drip tray in the second chamber and flows into the end of the diversion channel to mix with the condensed waste water. Next, the mixture is discharged out of the fan-coil assembly through pumping.

[0047] Fig. 2 is a top view of the supply vent, the return vent and the overall air duct.

[0048] It should be appreciated that the empty floor space layer 101 is on the floor of the indoor space.

[0049] It should be appreciated that the indoor space includes the floor and walls.

[0050] In the embodiment of the present application, the empty floor space layer 101 further includes an air duct board 1015, the air duct board 1015 and the support frame 103 are combined to form an independent air duct, and the supply vent 103 and the return vent 104 are located at both ends of the independent air duct.

[0051] The air duct board is used for heat insulation and sealing. It should be appreciated that the air duct board is capable of being plugged into/out of the supporting frame, so as to form the independent air duct.

[0052] Fig. 3 is a sectional view showing the independent air duct formed by the duct board and the support frame.

[0053] Specifically, independent air ducts having different preset paths are arranged between the supply vent 103 and the return vent 104.

[0054] A specific preset path may be set according to an actual application scenario. By way of non-limiting examples, the preset path may be of a curved or straight shape.

[0055] Fig. 4 is a top view of the supply vent, the return vent and independent air duct, the preset path is of the curved shape.

[0056] In the embodiment of the present application, the ground-embedded air-conditioning system further includes an air processing assembly 106 arranged on a fresh air supply duct 105 and outside the indoor space, the air processing assembly 106 is configured to introduce fresh air from the outside, and perform humidification or dehumidification processing on the fresh air, and electrically connected to the controller.

[0057] It should be appreciated that the fresh air supply duct 105 may be set according to an actual application scenario. By way of non-limiting examples, the empty floor space layer or a buried pipe serves as the fresh air supply duct.

[0058] Specifically, the air processing assembly 106 includes a fan 1061, a humidification module 1062, a first fresh air damper 1063 and a second surface cooler 1064, the fan 1061 is configured to drive the fresh air to pass through the humidification module 1062 for humidification, and drive the humidified fresh air to enter the fresh air supply duct 105 through the first fresh air damper 1063, and the first fresh air damper 1063 is configured to control a volume of the humidified fresh air entering the fresh air supply duct 105; or, the fan 1061 is configured to drive the fresh air to pass through the second surface cooler 1064 for dehumidification, and drive the dehumidified fresh air to enter the fresh air supply duct 105 through the first fresh air damper 1063, and the first fresh air damper 1063 is configured to control a volume of the dehumidified fresh air entering the fresh air supply duct 105.

[0059] In the embodiment of the present application, the return air module 1022 further includes: a second fresh air damper 10222 arranged on the fresh air supply duct 105, and the second fresh air damper 10222 is configured to control a volume of the humidified or dehumidified fresh air entering the empty floor space layer 101.

[0060] In the embodiment of the present application, the ground-embedded air-conditioning system further includes an exhaust module 107 arranged on a wall at a preset height of the indoor space and connected to the outdoor space, the exhaust module 107 is configured to exhaust the air in the indoor space to the outdoor space, and electrically connected to the controller.

[0061] It should be appreciated that the preset height may be set according to an actual application scenario. By way of non-limiting examples, the preset height may be 2m or 3m.

[0062] In the embodiment of the present application, a distance between the supply vent 103 and the return vent 104 is greater than or equal to a preset distance.

[0063] It should be appreciated that the preset distance may be set according to an actual application scenario. By way of non-limiting examples, the preset distance may be 5m or 6m.

[0064] In a possible embodiment of the present application, the supply vent 103 includes, but not limited to, an air supply cover 1031 and an air supply filter 1032. The air supply cover 1031 may be an air supply cover with a fixed air supply direction, or an air supply cover with an adjustable air supply direction, and the air supply cover with the adjustable air supply direction is electrically connected to the controller. The return vent 104 includes, but not limited to, an air return cover 1041 and an air return filter 1042.

[0065] In a possible embodiment of the present application, the air processing assembly 106 further includes, but not limited to, a filter mesh 1065, a negative oxygen ion generator 1066 and a PM2.5 air filter 1067, the filter mesh 1065 includes a primary filter screen, a medium-efficiency filter and/or high-efficiency filter, and is configured to filter a particulate matter having a large diameter in the fresh air. The negative oxygen ion generator 1066 is configured to perform conversion processing on the fresh air, so that the fresh air carries negative oxygen ions. The PM2.5 air filter is configured to remove a particulate matter capable of entering a lung from the fresh air.

[0066] As shown in Fig. 5, the empty floor space layer serves as the fresh air supply duct. Fig. 5 is a sectional view showing the air processing assembly 106 and the fresh air supply duct 105.

[0067] It should be appreciated that an installation position of each member in the air processing assembly may be set according to an actual application scenario, which will not be particularly defined herein.

[0068] In the embodiment of the present application, the controller controls the cold/heat source to provide the cold or heat source to the fan-coil assembly at the return vent, and the fan-coil assembly at the supply vent is controlled by the controller to drive the air in the indoor space into the fan-coil assembly at the return vent for heat exchange. Next, the air passes through the empty floor space layer and the fan-coil assembly at the supply vent sequentially, and then enters the indoor space, it is able to improve the heat transfer efficiency and cooling efficiency of the floor surface, and realize the cooling or heating cycle of the indoor space, thereby to improve the efficiency of cooling and heating.

[0069] In practical applications, as shown in Figs. 18-24, after the air supply module 1021 is started, a negative pressure is formed in the empty floor space layer 101, and thus the air from the indoor space is driven into the return air module 1022 for heat exchange, and then sent back to the indoor space by the air supply module 1021 after passing through the empty floor space layer 101, thereby forming a convective circulation of the air. The refrigerated or heated air is capable of being in dynamic contact with the empty floor space layer when flowing in the empty floor space layer 101, so as to cool or heat the indoor space through the empty floor space layer 101 in a radiation manner, thereby reducing a temperature difference between the floor and the indoor air and improving user comfortability.

[0070] The empty floor space layer 101 is arranged on the indoor floor, the supply vent and the return vent are provided in a top surface of the empty floor space layers, the air return module 1022 is embedded in the return vent, the air supply module 1021 is embedded in the supply vent, and the air return module 1022 is arranged opposite to the air supply module 1021. A distance from the air return module 1022 to the air supply module 1021 determine a size of a convective circulation space.

[0071] In an actual installation process, convective circulation is performed on only part of the indoor space according to a size of an activity space. In this regard, locations of the supply vent and the return vent should be as close to the wall as possible, so as to reduce a frequency of stepping on the return air module 1022 and the air supply module 1021 during the user's activities, and prolong the service life. The air outlet effect and efficiency are the best when the air is supplied from the walls arranged opposite to each other, so as to enable an effective cooling/heating area of the room to be mainly in the center of a room, and improve the comfortability in the room.

[0072] The empty floor space layer 101 has various structural forms. In the embodiment of the present application, the floor overhead layer 101 includes a first upper connecting plate 110, a first lower connecting plate 120, and a plurality of support columns 130 arranged in a matrix form between the first upper connecting plate 110 and the first lower connecting plate 120. Various air ducts connecting the air return module 1022 and the air supply module 1021 are formed among the supporting columns 130, and the air ducts extend horizontally to allow air to flow in a straight line form without being blocked by the floor layer. The calcium silicate board 1012 is arranged on the first upper connecting plate 110, and a floor 15 is arranged on the calcium silicate board 1012 in a spliced manner. The quantity of the support columns 130 and a spacing between the support columns may be set according to a size of the calcium silicate board 1012 or the floor 15.

[0073] Preferably, the first upper connecting plate 110, the first lower connecting plate 120 and the supporting columns 130 are formed as one piece and made of waterproof plastic, so as to prevent the air duct from being polluted by bacteria grow in a large amount of condensed water generated in the heat exchange process.

[0074] The support column 130 has various structural forms, such as a truncated-cone-like shape. In the embodiment of the present application, the support column 130 is of a cylindrical structure, thereby reducing a space it occupies and reducing a wind resistance.

[0075] The air return module 1022 includes a housing 10221, a water receiving tray 10222, a supporting plate 10223, a heat exchanger 10224 and a controller 10225 disposed in the housing 10221. The top of the housing 10221 communicates with the return vent, and a plurality of air outlets are opened on a side of the housing 10221 facing the air supply module 1021, and the plurality of air outlets correspond to, and communicate with, the air ducts respectively, and the air outlets correspond to the air inlets respectively. The air outlets include a first air outlet 211 and a second air outlet 212.

[0076] A diversion channel 221 is arranged in the water receiving tray 10222, and a diversion surface 222 inclined downwardly is arranged at each of two sides of the diversion channel 221. The supporting plate 10223 is integrally formed with the water receiving tray 10222 or vertically inserted into the water receiving tray 10222, to divide an inner cavity of the housing 10221 into a fresh air chamber and a return air chamber. The housing 10221 is further provided with a fresh air damper 26 electrically connected to the controller 10225, and the fresh air chamber communicates with the first air outlet 211. A heat exchanger 10224 is arranged in the return air chamber, and the heat exchanger 10224 may be a surface cooler or the like. The heat exchanger 10224 is vertically inserted into the supporting plate 10223 through an end plate, and divides the return air chamber into an air return passage communicating with the return vent and an air outlet passage communicating with the second air outlet 212. The controller 10225 is arranged in the fresh air chamber, thereby improving the structure compactness of the return air module 1022. The condensed water generated by the surface cooler drops into the water receiving tray 10222, flows into the diversion channel 221 through the diversion surface 222, and flows along the diversion channel 221 into the fresh air chamber, and accumulates in the water collection cavity. When the water level is exceeded, the water level switch generates a signal to start the water pump, so that the waste water is pumped out of to a return fan.

[0077] Preferably, a partition 27 is further provided in the air return module 1022, the partition 27 is arranged above the fresh air chamber and connected to the end plate, so as to isolate the fresh air chamber from the return air outlet. Part of the indoor air entering the air return module 1022 through the return vent is cooled or heated directly by the heat exchanger 10224, and another part of the indoor air is blocked by the partition 27 and then flows along the partition 27 until it is in contact with the heat exchanger 10224. Various kind of sensors 28 are arranged on the partition 27, and the sensors 28 include a PM2.5 detector, an oxygen concentration detector, a temperature-humidity detector, etc., so as to monitor various parameters in real time and improve user experience.

[0078] Preferably, a limit switch 29 electrically connected to the controller 10225 is further arranged on a side surface of the partition 27 close to the return vent. The return air module 1022 is further covered with a return air cover 40 located in the return vent. The return air cover 40 enables the limit switch 29 to be pressed, and when the return air cover 40 is removed, the limit switch 29 pops up, thereby to interrupt the power source for the return air module 1022 and the supply air module 1021.

[0079] Preferably, the supporting plate 10223 and the water receiving tray 10222 are each made of an EPP (Expanded Polypropylene) material, and gaps thereof are filled with PU (ployurethane) foam, so as to improve the sealing performance.

[0080] The air supply module 1021 includes a housing 310, a rotor 320 rotatably disposed on the housing 310, and a wind deflector 330 covered above the rotor 320. The housing 310 is provided with various inlets 311 at a side facing the return air module 1022, and the inlets 311 correspond to the air ducts respectively, so that the air exiting through air outlets passes through the air ducts in a straight line manner, and then enters the air inlets 311. The wind deflector 330 is vertically covered in the housing 310 and is fastened into the housing 310 through an elastic buckle. The supply vent is covered with a supply air cover 50. A limit switch is also set in the forced fan, the limit switch is close to a side surface of the supply vent. The supply air cover enables the limit switch to be pressed down, and when the supply air cover is removed, the limit switch pops up, thereby to interrupt the power source for the return fan and the forced fan.

[0081] In order to enable the air supply module 1021 and the air return module 1022 to be installed against the walls, a facing direction of the fresh air damper 26 is parallel to the walls and is arranged on a side of the air return module 1022 close to a room door, and a fresh air pipe communicating with the fresh air damper 26 extends out of empty floor space layer 101 from the bottom of the room door, so as to communicate with the outside air, thereby maximizing a convection circulation space.

[0082] The air supply module 1021 and the air return module 1022 may be arranged opposite to each other horizontally or vertically in a house. Preferably, the fresh air damper 26 faces the room door, so that the fresh air from the outside may flow into the fresh air chamber along a straight line, thereby to avoid a curved pipe, reduce a length of the fresh air pipe, and improve a fresh air efficiency.

[0083] Preferably, the housing 10221 of the air return module 1022 and the housing 310 of the air supply module 1021 are each provided with step-like grooves, and the step-like grooves are used to support and limit the calcium silicate board 1012 and the floor 15.

[0084] When in use, the controller controls the return fan and the forced fan to be started, so that the indoor air flows along a convection circulation direction. When cooling or heating the indoor space is required, the return air is cooled or heated by the heat exchanger, and then is circulated to enable an indoor temperature to fall or rise quickly.

[0085] When a quality of the indoor air is reduced, the fresh air damper is turned on, to enable the fresh air to enter the fresh air chamber without passing through the heat exchanger for heat exchange. Next, the fresh air directly enters the air duct from the second air outlet, and mixes with the return air after heat exchange in the air duct.

[0086] Preferably, the supporting plate includes several supporting columns 130 arranged in a straight line manner, and a second upper connecting plate 16 and a second lower connecting plate 17 connected to the supporting columns 130. A spacing between the supporting plates forms the air duct. Due to the split-type structure, it is able to facilitate installation on site and provide strong versatility.

[0087] Preferably, the supporting plate is made of a metal material, such as stainless steel, aluminum, so as to improve the effect of radiation.

[0088] Preferably, the empty floor space layer further includes a heating module (not shown) electrically connected to the controller 10225 for heating the supporting plate. When there is a large temperature difference between the supporting plate and the air (especially when a temperature of the supporting plate is lower than a temperature of the air), the heating module is turned on to heat the supporting plate for a short time, so as to enable the temperature of the supporting plate to be increased quickly, thereby to reduce the temperature difference between the supporting plate and the air, and avoid a water accumulation issue caused by the generation of large amounts of condensed water. In addition to the heating module, a flocking fabric may be further provided to cover the outer side of the supporting plate, so as to prevent condensed water from being generated when the supporting plate is in contact with air.

[0089] When the ground-embedded air-conditioning system is turned on, and a heating operation is performed, the heating module is turned on first to rapidly increase the temperature of the supporting plate and reduce the temperature difference between the supporting plate and the indoor air, and then the forced fan and return fan are turned on.

[0090] In the embodiment of the present application, it is not only able to improve the heat transfer efficiency and cooling efficiency of the floor surface, but also avoids the occurrence of short circuit due to that the surface cooler and the fan are arranged together through arranging the first surface cooler in the air return module separately from the air supply module. The quantity and positions of the air supply modules may be set according to an actual application scenario. The surface cooler and the fan may be inspected, repaired and cleaned separately, thereby reducing the maintenance cost. In the embodiment of the present application, a buried manner is adopted instead of a suspended ceiling manner. During the implementation of air supply and return in the suspended ceiling manner, it is necessary to manually drill holes in a lintel and suspend the ceiling in advance, so that a difficulty in installation is large, the safety of the building structure is adversely affected, construction cost is high, and the cooling and heating effect is adversely affected by a construction quality.

[0091] Referring to Fig. 6, a control method for the ground-embedded air-conditioning system in the embodiments of the present application includes the following steps.

[0092] 601, controlling the cold/heat source to output a target source through the controller in response to a mode control instruction, where the target source is the cold or heat source.

[0093] The mode control instruction is used to instruct to cool or heat each indoor space. The cold/heat source is used to provide the cold and heat sources of the ground-embedded air-conditioning system.

[0094] Fig. 7 is a schematic view showing an electrical connection of the ground-embedded air-conditioning system.

[0095] A specific cold/heat source may be set according to an actual application scenario. By way of non-limiting examples, the cold/heat source may be a heat pump water module or a fluorine machine module. The heat pump water module includes, but not limited to, a heat pump, a waterpower module and an energy storage device, the waterpower module includes, but not limited to, a water pipe and a water valve, the fluorine machine module includes, but not limited to, a Freon compressor, an oil separator, an oil return capillary, a heat exchanger, an electronic valve, a one-way valve, a gas-liquid separator and a four-way valve.

[0096] 602, controlling the fan-coil assembly at the supply vent of each indoor space through the controller to drive the air in the indoor space into the fan-coil assembly at the return vent.

[0097] It should be appreciated that at least one supply vent may be provided in each indoor space.

[0098] 603, controlling the fan-coil assembly at the return vent of each indoor space through the controller to perform heat exchange on the air in each indoor space in accordance with the target source, to obtain target air, where the target air is cold air or hot air.

[0099] Specifically, the ground-embedded air-conditioning system controls the fan-coil assembly at the return vent of each indoor space through the controller to perform heat exchange on the air in each indoor space in accordance with the target source, to obtain the target air. When the target source is the cold source, cold air is obtained. When the target the source is the heat source, hot air is obtained.

[0100] 604, controlling the fan-coil assembly at the supply vent of each indoor space through the controller to drive the target air to enter each indoor space sequentially through the empty floor space layer of each indoor space and the fan-coil assembly at the supply vent, thereby to realize a cooling or heating cycle of the air in the convective circulation channel.

[0101] Specifically, the ground-embedded air-conditioning system controls the fan-coil assembly at the supply vent of each indoor space through the controller to drive the target air to enter each indoor space sequentially through the empty floor space layer of each indoor space and the fan-coil assembly at the supply vent. In this regard, when the target air is cold air, a cooling cycle of the air of each indoor space in the convective circulation channel is realized. When the target air is hot air, a heating cycle of the air of each indoor space in the convective circulation channel is realized.

[0102] In a possible embodiment of the present application, in the case that the mode control instruction is used to instruct to cool each indoor space, the cold/heat source is controlled by the controller to pass through the air processing assembly to dehumidify the fresh air introduced from the outside in each indoor space.

[0103] It should be appreciated that all the indoor spaces correspond to one air processing assembly.

[0104] Fig. 8 is a top view of the ground-embedded air-conditioning system applied to multiple indoor spaces.

[0105] In a possible embodiment of the present application, the cold/heat source is the heat pump water module. Since the humidity ratio of the fresh air introduced from the outside is determined by the outdoor environment, the water of the heat pump water module passes through the second surface cooler of the air processing assembly, it is able to dehumidify the fresh air introduced from the outside in all indoor spaces by controlling a temperature of exiting water of the heat pump water module.

[0106] Fig. 9 is a schematic view showing a case where the cold/heat source is the heat pump water module. The heat pump water module includes, but not limited to, a heat pump 901, a water pipe 902, a water valve 903, a buffer tank 904 and a pump 905. The exiting water of the heat pump 901 enters the second surface cooler 1064 of the air processing assembly through the water pipe 902, and exchanges heat with the fresh air introduced from the outside in all indoor spaces through the second surface cooler 1064, to dehumidify the fresh air. The exiting water enters the first surface cooler 10221 in each indoor space through the water pipe 902, and exchanges heat with the air in each indoor space through the first surface cooler 10221 to obtain cold or hot air, thereby to realize cooling or heating of each indoor space. The water valve 903 is provided before the first surface cooler 10221, so as to control a water circuit to be in an on or off state. After passing through the first surface cooler 10221, the exiting water enters the buffer tank 904, and then returns to the heat pump through the pump 905.

[0107] In a possible embodiment of the present application, a differential pressure bypass valve 906 is provided after the air processing assembly and before the buffer tank 904, so as to prevent a flow capacity of the exiting water from being too small.

[0108] In a possible embodiment of the present application, an energy storage device 907 is added to the heat pump water module to form a heat pump water module having a closed-type energy storage function or an open-type energy storage function. Fig. 10 is a schematic view showing the heat pump water module having the closed-type energy storage function. Fig. 11 is a schematic view showing the heat pump water module having the open-type energy storage function. The heat pump water module having the open-type energy storage function further includes a plate heat exchanger 908.

[0109] To be specific, (1) when the mode control instruction is used to instruct to cool each indoor space, the ground-embedded air-conditioning system obtains a target room humidity ratio of each indoor space through the controller. (2) When the target room humidity ratio of each indoor space is the same, the ground-embedded air-conditioning system performs calculation processing based on the target room humidity ratio and a preset cooling humidity ratio formula through the controller, to obtain a target humidity ratio of cooling supply air for each indoor space. (3) Under a pre-set condition, the ground-embedded air-conditioning system obtains an actual humidity ratio of the cooling supply air in each indoor space and the temperature of the exiting water of the heat pump water module through the controller. The pre-set condition is used to indicate that an enthalpy value and air volume of the fresh air introduced from the outside is a fixed value. (4) When the actual humidity ratio of the cooling supply air in each indoor space is the same, the ground-embedded air-conditioning system controls the heat pump water module to maintain, decrease or increase, at a first preset ratio, the temperature of the exiting water through the controller based on the actual humidity ratio of the cooling supply air and the target humidity ratio of the cooling supply air, so as to enable the actual humidity ratio of the cooling supply air to be less than or equal to the target humidity ratio of the cooling supply air.

[0110] It should be appreciated that the target room humidity ratio is calculated based on a target room temperature, a target room relative humidity and the psychrometric chart.

[0111] The preset cooling humidity ratio formula is d_target for cooling supply air = d_target for room - Δd_cooling , d_{target for cooling supply air} represents the target humidity ratio of the cooling supply air, d_{target for room} represents the target room humidity ratio, and Δd_cooling represents a positive value of an adjustable offset. A specific positive value of the adjustable offset may be set according to an actual application scenario. By way of non-limiting examples, the positive value of the adjustable offset may be 0.5g/kg or 0.6g/kg.

[0112] For example, when the mode control instruction is used to instruct to cool each indoor space, the ground-embedded air-conditioning system obtains a target room humidity ratio d_{target for room} of each indoor space through the controller. When d_{target for room} of each indoor space is the same, the ground-embedded air-conditioning system performs calculation processing based on d_{target for room} and the preset cooling humidity ratio formula d_{target for cooling supply air} = d_{target for room} - Δd_cooling through the controller, to obtain a target humidity ratio of cooling supply air d_{target for cooling supply air} for each indoor space. Under a pre-set condition, the ground-embedded air-conditioning system obtains an actual humidity ratio d_{actual for cooling supply air} of the cooling supply air in each indoor space and a temperature T_outlet of the exiting water of the heat pump water module through the controller. The pre-set condition is used to indicate that an enthalpy value and air volume of the fresh air introduced from the outside is a fixed value. When d_{actual for cooling supply air} in each indoor space is the same, the ground-embedded air-conditioning system controls the heat pump water module to maintain, decrease or increase, at the first preset ratio, the temperature T_outlet of the exiting water through the controller based on d_{actual for cooling supply air} and d_{target for cooling supply air}, so that the actual humidity ratio of the cooling supply air is less than or equal to the target humidity ratio of the cooling supply air. In specific, when d_{actual for cooling supply air} - d_{target for cooling supply air} ≥ d_{first preset threshold},where d_{first preset threshold} represents a first preset threshold, the ground-embedded air-conditioning system controls the heat pump water module to decrease, at the first preset ratio, the temperature T_outlet of the exiting water through the controller. The first preset threshold may be set according to an actual application scenario. By way of non-limiting examples, the first preset threshold may be 0.5g/kg or 0.6g/kg. The first preset ratio is configured to represent a ratio of a preset temperature to the first preset threshold. The preset temperature may be set according to an actual application scenario. By way of non-limiting examples, the preset temperature may be 1°C or 2°C. For another example, the first preset threshold value is 0.5g/kg, the preset temperature is 1°C, and thereby the first preset ratio is 1°C:0.5g/kg. When d_{actual for cooling supply air} - d_{target for cooling supply air} ≥ 0.5g/kg , the ground-embedded air-conditioning system controls the heat pump water module to decrease the temperature T_outlet of the exiting water through the controller by 1°C. On the basis of the above examples, when d_{actual for cooling supply air} - d_{target for cooling supply air} ≤ -d_{first preset threshold} , the ground-embedded air-conditioning system controls the heat pump water module to increase, at the first preset ratio, the temperature T_outlet of the exiting water through the controller. That is, when d_{actual for cooling supply air} - d_{target for cooling supply air} ≤ -0.5g/kg, the ground-embedded air-conditioning system controls the heat pump water module to increase the temperature T_outlet of the exiting water through the controller by 1°C. When |d_{actual for cooling supply air} - d_{target for cooling supply air} \ ≤ d_{first preset threshold} , the ground-embedded air-conditioning system controls the heat pump water module to maintain the temperature T_outlet of the exiting water through the controller. That is, when |d_{actual for cooling supply air} - d_{target for cooling supply air}| ≤ 0.5g/kg, the ground-embedded air-conditioning system controls the heat pump water module to maintain the temperature T_outlet of the exiting water through the controller.

[0113] In a possible embodiment of the present application, (1) when the target room humidity ratio of each indoor space is not the same, the ground-embedded air-conditioning system determines a minimum target room humidity ratio among target room humidity ratios of indoor spaces as a candidate target room humidity ratio through the controller. (2) The ground-embedded air-conditioning system performs calculation processing based on the candidate target room humidity ratio and the preset cooling humidity ratio formula through the controller, to obtain a target humidity ratio of cooling supply air for each indoor space. (3) Under a pre-set condition, the ground-embedded air-conditioning system obtains an actual humidity ratio of the cooling supply air in each indoor space and the temperature of the exiting water of the heat pump water module through the controller. The pre-set condition is used to indicate that an enthalpy value and air volume of the fresh air introduced from the outside is a fixed value. (4) When the actual humidity ratio of the cooling supply air in each indoor space is not the same, the ground-embedded air conditioning system determines a minimum actual humidity ratio of the cooling supply air among actual humidity ratios of the cooling supply air in the indoor spaces as a candidate actual humidity ratio of the cooling supply air through the controller. (5) The ground-embedded air-conditioning system controls the heat pump water module to maintain, decrease or increase, at the first preset ratio, the temperature of the exiting water through the controller based on the candidate actual humidity ratio of the cooling supply air and the target humidity ratio of the cooling supply air, so as to enable the candidate actual humidity ratio of the cooling supply air to be less than or equal to the target humidity ratio of the cooling supply air.

[0114] It should be appreciated that, when the target room humidity ratio of each indoor space is not the same, the ground-embedded air-conditioning system determines, in accordance with a worst-case parameter control manner, the minimum target room humidity ratio among the target room humidity ratios of the indoor spaces as the candidate target room humidity ratio through the controller. When the actual humidity ratio of the cooling supply air in each indoor space is not the same, the ground-embedded air conditioning system determines, in accordance with the worst-case parameter control manner, the minimum actual humidity ratio of the cooling supply air among the actual humidity ratios of the cooling supply air in the indoor spaces as the candidate actual humidity ratio of the cooling supply air through the controller.

[0115] In a possible embodiment of the present application, the cold/heat source is the fluorine machine module. Since the humidity ratio of the fresh air introduced from the outside is determined by the outdoor environment, a refrigerant of the fluorine machine module passes through the second surface cooler of the air processing assembly, it is able to dehumidify the fresh air introduced from the outside in each indoor space by controlling a frequency of an inverter compressor in the fluorine machine module.

[0116] Fig. 12 is a schematic view showing the fluorine machine module for refrigerating. The fluorine machine module includes, but not limited to, a Freon compressor 1201, an oil separator 1202, an oil return capillary 1203, a heat exchanger 1204, an electronic valve 1205, a one-way valve 1206, a gas-liquid separator 1207, a four-way valve 1208 and a throttling electronic expansion valve 1209. When refrigerating, the refrigerant passes through the Freon compressor 1201 to do work, to obtain a high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant enters the oil separator 1202, to separate a refrigeration oil and trace refrigerant. The refrigeration oil and trace refrigerant pass through the oil return capillary 1203 for depressurization and throttling, and then return to the Freon compressor 1201, thereby ensuring the safety of oil return. The high-temperature and high-pressure gaseous refrigerant passing through the oil separator 1202 enters the heat exchanger 1204 through the four-way valve 1208, to obtain a medium-temperature and high-pressure liquid. The medium-temperature and high-pressure liquid passes through the electronic valve 1205 and the one-way valve 1206, and enters the throttling electronic expansion valve 1209 for throttling, to obtain a low-pressure and low-temperature gaseous refrigerant. The low-pressure and low-temperature gaseous refrigerant enters the second surface cooler 1064, to exchange heat with the fresh air introduced from the outside for all indoor spaces through the second surface cooler 1064, thereby to dehumidify the fresh air. At the same time, the low-pressure and low-temperature gaseous refrigerant enters the first surface cooler 10221 in each indoor space, to exchange heat with the air in each indoor space through the first surface cooler 10221, thereby to obtain the cold air and realize the cooling of each indoor space. The throttling electronic expansion valve 1209 is arranged before the first surface cooler 10221 and the second surface cooler 1064 which are installed in parallel. The electronic valve 1205 is fully open. After passing through the first surface cooler 10221 and the second surface cooler 1064, the low-pressure and low-temperature gaseous refrigerant passes through the four-way valve 1208, and then passes through the gas-liquid separator 1207, and returns to the Freon compressor 1201.

[0117] Fig. 13 is a schematic view showing the fluorine machine module for heating. During the heating, the refrigerant passes through the Freon compressor 1201 to do work, to obtain a high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant enters the oil separator 1202, to separate a refrigeration oil and trace refrigerant. The refrigeration oil and trace refrigerant pass through the oil return capillary 1203 for depressurization and throttling, and then return to the Freon compressor 1201, thereby ensuring the safety of oil return. The high-temperature and high-pressure gaseous refrigerant passing through the oil separator 1202 enters the second surface cooler 1064 through the four-way valve 1208. At the same time, the high-temperature and high-pressure gaseous refrigerant enters the first surface cooler 10221 in each indoor space, to exchange heat with the air in each indoor space through the first surface cooler 10221, thereby to obtain heated air and realize the heating of each indoor space. The high-temperature and high-pressure gaseous refrigerant passes through the first surface cooler 10221 and the second surface cooler 1064, to obtain a medium-temperature and high-pressure refrigerant. The medium-temperature and high-pressure refrigerant passes through the throttling electronic expansion valve 1209, enters the electronic valve 1205 for throttling, and then passes through the heat exchanger 1204 for heat exchange, to obtain a low-pressure and low-temperature gaseous refrigerant. The low-pressure and low-temperature gaseous refrigerant passes through the four-way valve 1208, and then passes through the gas-liquid separator 1207, and returns to the Freon compressor 1201.

[0118] To be specific, (1) when the mode control instruction is used to instruct to cool each indoor space, the ground-embedded air-conditioning system obtains a target room humidity ratio of each indoor space through the controller. (2) When the target room humidity ratio of each indoor space is the same, the ground-embedded air-conditioning system performs calculation processing based on the target room humidity ratio and a preset cooling humidity ratio formula through the controller, to obtain a target humidity ratio of cooling supply air for each indoor space. (3) Under a pre-set condition, the ground-embedded air-conditioning system obtains an actual humidity ratio of the cooling supply air in each indoor space and the frequency of the inverter compressor of fluorine machine module through the controller. The pre-set condition is used to indicate that an enthalpy value and air volume of the fresh air introduced from the outside is a fixed value. (4) When the actual humidity ratio of the cooling supply air in each indoor space is the same, the ground-embedded air-conditioning system controls the fluorine machine module to maintain, decrease or increase, at a second preset ratio, the frequency of the inverter compressor through the controller based on the actual humidity ratio of the cooling supply air and the target humidity ratio of the cooling supply air, so as to enable the actual humidity ratio of the cooling supply air to be less than or equal to the target humidity ratio of the cooling supply air.

[0119] For example, when the mode control instruction is used to instruct to cool each indoor space, the ground-embedded air-conditioning system obtains a target room humidity ratio d_{target for room} of each indoor space through the controller. When d_{target for room} of each indoor space is the same, the ground-embedded air-conditioning system performs calculation processing based on d_{target for room} and the preset cooling humidity ratio formula d_{target for cooling supply air} = d_{target for room} - Δd_cooling through the controller, to obtain a target humidity ratio of cooling supply air d_{target for cooling supply air} for each indoor space. Under a pre-set condition, the ground-embedded air-conditioning system obtains an actual humidity ratio d_{actual for cooling supply air} of the cooling supply air in each indoor space and the frequency F_n of the inverter compressor in the fluorine machine module through the controller. The pre-set condition is used to indicate that the enthalpy value and air volume of the fresh air introduced from the outside is a fixed value. When d_{actual for cooling supply air} in each indoor space is the same, the ground-embedded air-conditioning system controls the fluorine machine module to maintain, reduce or increase, at the second preset ratio, the frequency F_n of the inverter compressor through the controller based on d_{actual for cooling supply air} and d_{target for cooling supply air}, so that the actual humidity ratio of the cooling supply air is less than or equal to the target humidity ratio of the cooling supply air. To be specific, when d_{actual for cooling supply air} - d_{target for cooling supply air} ≥ d_{second preset threshold} , where d_{second preset threshold} represents a second preset threshold, the ground-embedded air-conditioning system controls the fluorine machine module to reduce, at the second preset ratio, the frequency F_n of the inverter compressor through the controller. The second preset threshold may be set according to an actual application scenario. By way of non-limiting examples, the second preset threshold may be 0.5g/kg or 0.6g/kg. The second preset ratio is configured to represent a ratio of a preset frequency to the second preset threshold. The preset frequency may be set according to an actual application scenario. By way of non-limiting examples, the preset frequency may be 1Hz or 2Hz. For another example, the second preset threshold value is 0.5g/kg, the preset frequency is 1Hz, and thereby the second preset ratio is 1Hz:0.5g/kg. When d_{actual for cooling supply air} - d_{target for cooling supply air} ≥ 0.5g/kg, the ground-embedded air-conditioning system controls the fluorine machine module to reduce the frequency F_n of the inverter compressor through the controller by 1Hz. On the basis of the above examples, when d_{actual for cooling supply air} - d_{target for cooling supply air} ≤ -d_{second preset threshold} , the ground-embedded air-conditioning system controls the fluorine machine module to increase, at the second preset ratio, the frequency F_n of the inverter compressor through the controller. That is, when d_{actual for cooling supply air} - d_{target for cooling supply air} ≤ -0.5g/kg , the ground-embedded air-conditioning system controls the fluorine machine module to increase the frequency F_n of the inverter compressor through the controller by 1Hz. When |d_{actual for cooling supply air} - d_{target for cooling supply air}| ≤ d_{second preset threshold} , the ground-embedded air-conditioning system controls the fluorine machine module to maintain the frequency F_n of the inverter compressor through the controller. That is, when |d_{actual for cooling supply air} - d_{target for cooling supply air} \ ≤ 0.5g/kg , the ground-embedded air-conditioning system controls the fluorine machine module to maintain the frequency F_n of the inverter compressor through the controller.

[0120] In a possible embodiment of the present application, (1) when the target room humidity ratio of each indoor space is not the same, the ground-embedded air-conditioning system determines a minimum target room humidity ratio among target room humidity ratios of indoor spaces as a candidate target room humidity ratio through the controller. (2) The ground-embedded air-conditioning system performs calculation processing based on the candidate target room humidity ratio and the preset cooling humidity ratio formula through the controller, to obtain a target humidity ratio of cooling supply air for each indoor space. (3) Under a pre-set condition, the ground-embedded air-conditioning system obtains an actual humidity ratio of the cooling supply air in each indoor space and the frequency of the inverter compressor of the fluorine machine module through the controller. The pre-set condition is used to indicate that the enthalpy value and air volume of the fresh air introduced from the outside is a fixed value. (4) When the actual humidity ratio of the cooling supply air in each indoor space is not the same, the ground-embedded air conditioning system determines a minimum actual humidity ratio of the cooling supply air among actual humidity ratios of the cooling supply air in the indoor spaces as a candidate actual humidity ratio of the cooling supply air through the controller. (5) The ground-embedded air-conditioning system controls the fluorine machine module to maintain, reduce or increase, at the second preset ratio, the frequency of the inverter compressor through the controller based on the candidate actual humidity ratio of the cooling supply air and the target humidity ratio of the cooling supply air, so as to enable the candidate actual humidity ratio of the cooling supply air to be less than or equal to the target humidity ratio of the cooling supply air.

[0121] It should be appreciated that, when the target room humidity ratio of each indoor space is not the same, the ground-embedded air-conditioning system determines, in accordance with a worst-case parameter control manner, the minimum target room humidity ratio among the target room humidity ratios of the indoor spaces as the candidate target room humidity ratio through the controller. When the actual humidity ratio of the cooling supply air in each indoor space is not the same, the ground-embedded air conditioning system determines, in accordance with the worst-case parameter control manner, the minimum actual humidity ratio of the cooling supply air among the actual humidity ratios of the cooling supply air in the indoor spaces as the candidate actual humidity ratio of the cooling supply air through the controller.

[0122] In a possible embodiment of the present application, in the case that the mode control instruction is used to instruct to heat each indoor space, the air processing assembly is controlled through the controller to humidify the fresh air introduced from the outside of each indoor space.

[0123] To be specific, (1) when the mode control instruction is used to instruct to heat each indoor space, the ground-embedded air-conditioning system obtains a target room humidity ratio of each indoor space through the controller. (2) When the target room humidity ratio of each indoor space is the same, the ground-embedded air-conditioning system performs calculation processing based on the target room humidity ratio and a preset heating humidity ratio formula through the controller, to obtain a target humidity ratio of heating supply air for each indoor space. (3) Under a pre-set condition, the ground-embedded air-conditioning system obtains an actual humidity ratio of the heating supply air in each indoor space through the controller. The pre-set condition is used to indicate that the enthalpy value and air volume of the fresh air introduced from the outside is a fixed value. (4) When the actual humidity ratio of the heating supply air in each indoor space is the same, the ground-embedded air-conditioning system controls the humidification module in the air processing assembly to perform adjusting at a third preset ratio based on the actual humidity ratio of the heating supply air and the target humidity ratio of the heating supply air, so as to enable the actual humidity ratio of the heating supply air to be greater than the target humidity ratio of the heating supply air.

[0124] The preset heating humidity ratio formula is d_{target for heating supply air} = d_{target for room} - Δd_heating , d_{target for heating supply air} represents the target humidity ratio of the heating supply air, d_{target for room} represents the target room humidity ratio, and Δd_heating represents a positive value of an adjustable offset. A specific positive value of the adjustable offset may be set according to an actual application scenario. By way of non-limiting examples, the positive value of the adjustable offset may be 0.5g/kg or 0.6g/kg.

[0125] For example, when the mode control instruction is used to instruct to heat each indoor space, the ground-embedded air-conditioning system obtains a target room humidity ratio d_{target for room} of each indoor space through the controller. When d_{target for room} of each indoor space is the same, the ground-embedded air-conditioning system performs calculation processing based on d_{target for room} and the preset heating humidity ratio formula d_{target for heating supply air} = d_{target for room} - Δd_heating through the controller, to obtain a target humidity ratio of heating supply air d_{target for heating supply air} for each indoor space. Under a pre-set condition, the ground-embedded air-conditioning system obtains an actual humidity ratio d_{actual for heating supply air} of the heating supply air in each indoor space through the controller. The pre-set condition is used to indicate that the enthalpy value and air volume of the fresh air introduced from the outside is a fixed value. When d_{actual for heating supply air} in each indoor space is the same, the ground-embedded air-conditioning system controls the humidification module in the air processing assembly to perform adjusting at the third preset ratio through the controller based on d_{actual for heating supply air} and d_{target for heating supply air}, so as to enable the actual humidity ratio of the heating supply air to be greater than the target humidity ratio of the heating supply air. The third preset threshold may be set according to an actual application scenario. By way of non-limiting examples, the third preset threshold may be 30% or 40%. It should be appreciated that the higher the third preset ratio, the higher the humidification degree. A difference between the actual humidity ratio of the heating supply air and the target humidity ratio of the heating supply air is less than or equal to a heating humidification offset. The specific heating humidification offset may be set according to the actual application scenario. By way of non-limiting examples, the heating humidification offset is a positive value less than 1g/kg.

[0126] In a possible embodiment of the present application, (1) when the target room humidity ratio of each indoor space is not the same, the ground-embedded air-conditioning system determines a minimum target room humidity ratio among target room humidity ratios of the indoor spaces as a candidate target room humidity ratio through the controller. (2) The ground-embedded air-conditioning system performs calculation processing based on the candidate target room humidity ratio and the preset heating humidity ratio formula through the controller, to obtain a target humidity ratio of heating supply air for each indoor space. (3) Under a pre-set condition, the ground-embedded air-conditioning system obtains an actual humidity ratio of the heating supply air in each indoor space through the controller. The pre-set condition is used to indicate that the enthalpy value and air volume of the fresh air introduced from the outside is a fixed value. (4) When the actual humidity ratio of the heating supply air in each indoor space is not the same, the ground-embedded air conditioning system determines a minimum actual humidity ratio of the heating supply air among actual humidity ratios of the heating supply air in the indoor spaces as a candidate actual humidity ratio of the heating supply air through the controller. (5) The ground-embedded air-conditioning system controls the humidification module in the air processing assembly to perform adjusting at the third preset ratio based on the candidate actual humidity ratio of the heating supply air and the target humidity ratio of the heating supply air, so as to enable the candidate actual humidity ratio of the heating supply air to be greater than the target humidity ratio of the heating supply air.

[0127] It should be appreciated that, when the target room humidity ratio of each indoor space is not the same, the ground-embedded air-conditioning system determines, in accordance with a worst-case parameter control manner, the minimum target room humidity ratio among the target room humidity ratios of the indoor spaces as the candidate target room humidity ratio through the controller. When the actual humidity ratio of the heating supply air in each indoor space is not the same, the ground-embedded air conditioning system determines, in accordance with the worst-case parameter control manner, the minimum actual humidity ratio of the heating supply air among the actual humidity ratios of the heating supply air in the indoor spaces as the candidate actual humidity ratio of the heating supply air through the controller.

[0128] In a possible embodiment of the present application, in the case that the mode control instruction is used to instruct to cool each indoor space, the air supply module is controlled by the controller to perform output adjusting, so as to adjust the cooling of each indoor space.

[0129] To be specific, (1) when the mode control instruction is used to instruct to cool each indoor space, the ground-embedded air-conditioning system obtains an actual room temperature and a target room temperature of each indoor space through the controller. (2) When the actual room temperature of each indoor space is greater than the corresponding target room temperature, the ground-embedded air-conditioning system controls the air supply module to increase the output at a first preset fan ratio through the controller, so as to enable the actual room temperature of each indoor space to be equal to the corresponding target room temperature. (3) When the actual room temperature of each indoor space is less than the corresponding target room temperature, the ground-embedded air-conditioning system controls the air supply module to reduce the output at the first preset fan ratio through the controller, so as to enable the actual room temperature of each indoor space to be equal to the corresponding target room temperature. (4) When an absolute difference between the actual room temperature of each indoor space and the corresponding target room temperature is less than or equal to a first preset value, the ground-embedded air-conditioning system controls the air supply module through the controller to maintain a current fan output ratio.

[0130] For example, when the mode control instruction is used to instruct to cool each indoor space, the ground-embedded air-conditioning system obtains an actual room temperature T_{actual room temperature} and a target room temperature T_{target room temperature} of each indoor space through the controller. In the case that the actual room temperature of each indoor space is greater than the corresponding target room temperature, and T_{actual room temperature} - T_{target room temperature} ≥ T_{first preset value}, the ground-embedded air-conditioning system controls the air supply module to increase the output at the first preset fan ratio through the controller. T_{first preset value} represents the first preset value, which may be set according to an actual application scenario. By way of non-limiting examples, the first preset value may be 0.5°C or 0.6°C. The first preset fan ratio is used to represent a ratio of a first preset percentage to the first preset value. The first preset percentage may be set according to the actual application scenario. By way of non-limiting examples, the first preset percentage may be 5% or 6%. For another example, the first preset value is 0.5°C, the first preset percentage is 5%, and the first preset fan ratio is 5%:0.5°C. When T_{actual room temperature} - T_{target room temperature} ≥ 0.5°C , the ground-embedded air-conditioning system controls the air supply module to increase the output at 5% through the controller, so as to enable the actual room temperature of each indoor space to be equal to the corresponding target room temperature. On the basis of the above examples, in the case that the actual room temperature of each indoor space is less than the corresponding target room temperature, and T_{actual room temperature} - T_{target room temperature} ≤ -T_{first preset value}, the ground-embedded air-conditioning system controls the air supply module to reduce the output at the first preset fan ratio through the controller. For example, when T_{actual room temperature} - T_{target room temperature} ≤ -0.5°C , the ground-embedded air-conditioning system controls the air supply module to reduce the output at 5% through the controller, so as to enable the actual room temperature of each indoor space to be equal to the corresponding target room temperature. When the absolute difference between the actual room temperature of each indoor space and the corresponding target room temperature is less than or equal to the first preset value, i.e., |T_{actual room temperature} - T_{target room temperature} | ≤ T_{first preset value} , e.g., |T_{actual room temperature} - T_{target room temperature} | ≤ -0.5°C, the ground-embedded air-conditioning system controls the air supply module through the controller to maintain the current fan output ratio.

[0131] In a possible embodiment of the present application, in the case that the mode control instruction is used to instruct to heat each indoor space, the air supply module is controlled by the controller to perform output adjusting, so as to adjust the heating of each indoor space.

[0132] To be specific, (1) when the mode control instruction is used to instruct to heat each indoor space, the ground-embedded air-conditioning system obtains an actual room temperature and a target room temperature of each indoor space through the controller. (2) When the actual room temperature of each indoor space is greater than the corresponding target room temperature, the ground-embedded air-conditioning system controls the air supply module to reduce the output at a second preset fan ratio through the controller, so as to enable the actual room temperature of each indoor space to be equal to the corresponding target room temperature. (3) When the actual room temperature of each indoor space is less than the corresponding target room temperature, the ground-embedded air-conditioning system controls the air supply module to increase the output at the second preset fan ratio through the controller, so as to enable the actual room temperature of each indoor space to be equal to the corresponding target room temperature. (4) When an absolute difference between the actual room temperature of each indoor space and the corresponding target room temperature is less than or equal to a second preset value, the ground-embedded air-conditioning system controls the air supply module through the controller to maintain the current fan output ratio.

[0133] For example, when the mode control instruction is used to instruct to heat each indoor space, the ground-embedded air-conditioning system obtains an actual room temperature T_{actual room temperature} and a target room temperature T_{target room temperature} of each indoor space through the controller. In the case that the actual room temperature of each indoor space is greater than the corresponding target room temperature, and T_{actual room temperature} - T_{target room temperature} ≥ T_{second preset value}, the ground-embedded air-conditioning system controls the air supply module to reduce the output at the second preset fan ratio through the controller. T_{second preset value} represents the second preset value, which may be set according to an actual application scenario. By way of non-limiting examples, the second preset value may be 0.5°C or 0.6°C. The second preset fan ratio is used to represent a ratio of a second preset percentage to the second preset value. The second preset percentage may be set according to an actual application scenario. By way of non-limiting examples, the second preset percentage may be 5% or 6%. For another example, the second preset value is 0.5°C, the second preset percentage is 5%, and the second preset fan ratio is 5%:0.5°C. When T_{actual room temperature} - T_{target room temperature} ≥ 0.5°C, the ground-embedded air-conditioning system controls the air supply module to reduce the output at 5% through the controller, so as to enable the actual room temperature of each indoor space to be equal to the corresponding target room temperature. On the basis of the above examples, in the case that the actual room temperature of each indoor space is less than the corresponding target room temperature, and T_{actual room temperature} - T_{target room temperature} ≤ -T_{second preset value} , the ground-embedded air-conditioning system controls the air supply module to increase the output at the second preset fan ratio through the controller. For example, when T_{actual room temperature} - T_{target room temperature} ≤ -0.5°C, the ground-embedded air-conditioning system controls the air supply module to increase the output at 5% through the controller, so as to enable the actual room temperature of each indoor space to be equal to the corresponding target room temperature. When the absolute difference between the actual room temperature of each indoor space and the corresponding target room temperature is less than or equal to the second preset value, i.e., |T_{actual room temperature} - T_{target room temperature} | ≤ T_{second preset value} , e.g., |T_{actual room temperature} - T_{target room temperature} | ≤ -0.5°C, the ground-embedded air-conditioning system controls the air supply module through the controller to maintain the current fan output ratio.

[0134] In a possible embodiment of the present application, in the case that the ground-embedded air-conditioning system is in a mute or night-dormant mode, the current fan output ratio is set to a minimum fan output ratio. The minimum fan output ratio may be set according to an actual application scenario. By way of non-limiting examples, the minimum fan output ratio is less than or equal to 30%. For the heat pump water module, the water valve at the first surface cooler is turned off, and for the fluorine machine module, the throttling electronic expansion valve at the first surface cooler is turned off.

[0135] In a possible embodiment of the present application, in the case that a concentration of carbon dioxide in each indoor space is greater than or equal to a preset concentration, the first fresh air damper is controlled by the controller to perform adjusting at a fourth preset ratio and the second fresh air damper is controlled by the controller to perform adjusting at a fifth preset ratio, and exhaust module is controlled by the controller to perform exhaust operation for a preset time period, so as to enable the concentration of carbon dioxide in each indoor space to be less than the preset concentration.

[0136] The fourth preset ratio may be set according to an actual application scenario. By way of non-limiting examples, the fourth preset ratio may be 20% or 30%.

[0137] The fifth preset ratio may be set according to an actual application scenario. By way of non-limiting examples, the fifth preset ratio may be 30% or 40%.

[0138] It should be appreciated that, the higher the fourth preset ratio and the fifth preset ratio, the greater the volume of the fresh air passing through the first fresh air damper and the second fresh air damper.

[0139] The preset time period may be set according to an actual application scenario. By way of non-limiting examples, the preset duration may be two or three minutes.

[0140] In the embodiment of the present application, the controller controls the cold/heat source to provide the cold or heat source to the fan-coil assembly at the return vent, and the fan-coil assembly at the supply vent is controlled by the controller to drive the air in the indoor space into the fan-coil assembly at the return vent for heat exchange. Next, the air passes through the empty floor space layer and the fan-coil assembly at the supply vent sequentially, and then enters the indoor space, it is able to improve the heat transfer efficiency and cooling efficiency of the floor surface, and realize the cooling or heating cycle of the indoor space, thereby to improve the efficiency of cooling and heating.

[0141] The present application further provides a computer-readable storage medium. The computer-readable storage medium may be a non-transitory or transitory computer-readable storage medium. The computer-readable storage medium having stored thereon instructions, when running on a computer, cause the computer to perform the steps of the control method for the ground-embedded air-conditioning system.

[0142] As can be appreciated by a person skilled in the art, for the convenience and conciseness of the illustration, the specific operation procedures of the above-mentioned system, device and unit may refer to the corresponding procedures in the above-mentioned method, which will not be particularly defined herein.

[0143] In the case that the integrated unit is implemented in the form of software functional unit and sold or used as an independent product, it may be stored in the computer readable storage medium. Based upon such understanding, the technical solutions of the present application essentially or the part thereof contributing to the prior art may be embodied in the form of a computer program product which may be stored in a storage medium and which includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or some steps of the method according to the respective embodiments of the present disclosure. The foregoing storage medium includes various media that may store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0144] The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the scope of the present application. As can be appreciated by a person skilled in the art, although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions in each embodiment may be modified, or some of the technical features may be replaced equivalently. The modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A ground-embedded air-conditioning system, comprising a controller, an empty floor space layer, and a cold/heat source and at least one fan-coil assembly electrically connected to the controller, wherein an air convective circulation channel is formed by the empty floor space layer and an indoor space above a floor;

wherein a supply vent and a return vent are provided in the empty floor space layer, and the at least one fan-coil assembly is arranged at positions of the supply vent and the return vent;

wherein the controller controls the cold/heat source to provide a cold or heat source to the fan-coil assembly at the return vent;

wherein air in the indoor space is driven by the fan-coil assembly at the supply vent under the control of the controller, to enter the fan-coil assembly at the return vent for heat exchange, pass through the empty floor space layer and the fan-coil assembly at the supply vent, and enter the indoor space, thereby to realize a cooling or heating cycle of the air in the convective circulation channel.

2. The ground-embedded air-conditioning system according to claim 1, wherein the fan-coil assembly is a split-type and embedded fan-coil assembly.

3. The ground-embedded air-conditioning system according to claim 2, wherein the fan-coil assembly comprises an air supply module and an air return module, the air supply module is disposed at the position of the supply vent, and the air return module is disposed at the position of the return vent.

4. The ground-embedded air-conditioning system according to claim 3, wherein the air return module comprises a first surface cooler, configured to perform heat exchange for the air in the indoor space to obtain cold air or hot air.

5. The ground-embedded air-conditioning system according to claim 1, wherein the empty floor space layer is composed of a floor layer, a calcium silicate board, a support frame and a thermal insulation layer arranged in an order from top to bottom, the support frame is located between the calcium silicate board and the thermal insulation layer, and configured to support the floor layer and the calcium silicate board, and form a height of an air duct corresponding to the empty floor space layer, thereby to form an overall air duct through the empty floor space layer.

6. The ground-embedded air-conditioning system according to claim 5, wherein a plurality of hollowed-out grooves is provided in the support frame, and a U-type notch is arranged at each one of two ends of the support frame, wherein the U-type notch is configured to enable the support frame to be fastened into the calcium silicate board and the thermal insulation layer, and the hollowed-out grooves are configured to adjust a length of the support frame.

7. The ground-embedded air-conditioning system according to claim 5, wherein the empty floor space layer further comprises an air duct board, the air duct board and the support frame are combined to form an independent air duct, and the supply vent and the return vent are located at both ends of the independent air duct.

8. The ground-embedded air-conditioning system according to claim 7, wherein independent air ducts having different preset paths are arranged between the supply vent and the return vent.

9. The ground-embedded air-conditioning system according to any one of claims 1 to 8, further comprising an air processing assembly arranged on a fresh air supply duct and outside the indoor space, wherein the air processing assembly is configured to introduce fresh air from the outside, and perform humidification or dehumidification processing on the fresh air, and electrically connected to the controller.

10. The ground-embedded air-conditioning system according to claim 9, wherein the air processing assembly comprises a fan, a humidification module, a first fresh air damper and a second surface cooler, wherein the fan is configured to drive the fresh air to pass through the humidification module for humidification, and drive the humidified fresh air to enter the fresh air supply duct through the first fresh air damper, and the first fresh air damper is configured to control a volume of the humidified fresh air entering the fresh air supply duct; or, the fan is configured to drive the fresh air to pass through the second surface cooler for dehumidification, and drive the dehumidified fresh air to enter the fresh air supply duct through the first fresh air damper, and the first fresh air damper is configured to control a volume of the dehumidified fresh air entering the fresh air supply duct.

11. The ground-embedded air-conditioning system according to claim 10, wherein the air processing assembly further comprises a filter mesh, a negative oxygen ion generator and a PM2.5 air filter, and the fresh air passes through the filter mesh, the negative oxygen ion generator and the PM2.5 air filter sequentially, and then enters the second surface cooler for dehumidification.

12. The ground-embedded air-conditioning system according to claim 10, wherein the air return module further comprises a second fresh air damper arranged on the fresh air supply duct, and the second fresh air damper is configured to control a volume of the dehumidified fresh air entering the empty floor space layer.

13. The ground-embedded air-conditioning system according to claim 1, wherein the supply vent comprises an air supply cover and an air supply filter, wherein the air supply filter is arranged above the fan-coil assembly, and the air supply cover is arranged above the air supply filter.

14. A control method for the ground-embedded air-conditioning system according to any one of claims 1 to 13, comprising: controlling the cold/heat source to output a target source through the controller in response to a mode control instruction, wherein the target source is the cold or heat source;

controlling the fan-coil assembly at the supply vent of each indoor space through the controller to drive the air in the indoor space into the fan-coil assembly at the return vent;

controlling the fan-coil assembly at the return vent of each indoor space through the controller to perform heat exchange on the air in each indoor space in accordance with the target source, to obtain target air, wherein the target air is cold air or hot air;

controlling the fan-coil assembly at the supply vent of each indoor space through the controller to drive the target air to enter each indoor space sequentially through the empty floor space layer of each indoor space and the fan-coil assembly at the supply vent, thereby to realize a cooling or heating cycle of the air in the convective circulation channel.

15. The control method according to claim 14, wherein when the target air passes through the empty floor space layer, the target air is in dynamic flow contact with the calcium silicate board and the floor layer of the empty floor space layer, thereby to cool or heat the indoor space in a surface radiation manner.

16. The control method according to claim 15, further comprising controlling the cold/heat source to pass through the air processing assembly to dehumidify the fresh air introduced from the outside of each indoor space through the controller in a case that the mode control instruction is used to instruct to cool each indoor space.

17. A computer-readable storage medium having stored thereon instructions, wherein the instructions are executed by a processor to perform the following steps:

controlling the cold/heat source to output a target source through the controller in response to a mode control instruction, wherein the target source is a cold or heat source;

controlling the fan-coil assembly at the supply vent of each indoor space through the controller to drive the air in the indoor space into the fan-coil assembly at the return vent;

controlling the fan-coil assembly at the return vent of each indoor space through the controller to perform heat exchange on the air in each indoor space in accordance with the target source, to obtain target air, wherein the target air is cold air or hot air;

controlling the fan-coil assembly at the supply vent of each indoor space through the controller to drive the target air to enter each indoor space sequentially through the empty floor space layer of each indoor space and the fan-coil assembly at the supply vent, thereby to realize a cooling or heating cycle of the air in the convective circulation channel.

18. The computer-readable storage medium according to claim 17, wherein the instructions are further executed by a processor to perform the following steps:
controlling the cold/heat source to pass through the air processing assembly to dehumidify the fresh air introduced from the outside of each indoor space through the controller in a case that the mode control instruction is used to instruct to cool each indoor space.

Drawing