Control method of an environmental conditioning system, environmental conditioning system and storage medium

Abstract

The application discloses a control method of an environment adjusting system, the environment adjusting system and a storage medium, relates to the electrical technology field, and the system comprises an outdoor unit and at least two indoor units; the outdoor unit comprises a compressor connected with the at least two indoor units; the method comprises the following steps: controlling the environment adjusting system to operate in a first mode, and at least one indoor unit is in an evaporation state in the first mode; in the case that a condensation prevention condition is met, determining a second evaporation temperature of each indoor unit with a need according to a current first evaporation temperature of each indoor unit with the need, the second evaporation temperature is greater than the corresponding first evaporation temperature; determining a condensation prevention frequency of the compressor according to the second evaporation temperature, and controlling the compressor to operate at the condensation prevention frequency; wherein the condensation prevention condition indicates that the indoor unit has a condensation risk. The application aims to reduce the condensation risk of the indoor unit while ensuring the heat exchange effect of the system.

Description

Technical Field

[0001] This application relates to the field of electrical technology, and in particular to control methods for environmental control systems, environmental control systems, and storage media. Background Technology

[0002] In indoor units of air conditioning and other environmental control systems, indoor air is driven into the indoor duct by an indoor fan to exchange heat with the indoor heat exchanger. The air after heat exchange can then be returned to the indoor environment through the air outlet, thereby regulating the indoor air.

[0003] In related technologies, when there is a risk of condensation on the indoor unit during the cooling or dehumidification process of the system, the compressor is usually directly reduced to the anti-condensation frequency. The anti-condensation frequency is usually a fixed frequency set in advance or a frequency determined based on a fixed parameter set in advance. This frequency is prone to mismatch with the actual operating conditions of the system. If the frequency is too high, condensation will occur in the indoor unit, resulting in poor operational reliability. If the frequency is too low, it will affect the heat exchange effect of the system. Summary of the Invention

[0004] The main purpose of this application is to provide a control method, an environmental control system, and a storage medium for an environmental control system, which aims to reduce the risk of condensation in the indoor unit while ensuring the heat exchange effect of the system.

[0005] To achieve the above objectives, this application proposes a control method for an environmental control system, the environmental control system including an outdoor unit and at least two indoor units, the outdoor unit including a compressor connected to the at least two indoor units, and the control method for the environmental control system including: The environmental control system is controlled to operate in a first mode, in which at least one of the indoor units is in an evaporation state; Under the condition of meeting the anti-condensation conditions, the second evaporation temperature of each indoor unit with energy demand is determined according to the current first evaporation temperature of each indoor unit with energy demand, and the second evaporation temperature is greater than the corresponding first evaporation temperature; The anti-condensation frequency of the compressor is determined based on the second evaporation temperature, and the compressor is controlled to operate at the anti-condensation frequency. The anti-condensation condition indicates that there is a risk of condensation on the indoor unit.

[0006] In one embodiment, before the step of determining the second evaporation temperature for anti-condensation of each indoor unit with energy demand based on the current first evaporation temperature of each indoor unit with energy demand, the method further includes: Obtain the nominal capacity of the outdoor unit and / or the humidity parameters of the space where the indoor unit is located; Determine the temperature adjustment parameters based on the nominal capacity and / or the humidity parameters; The step of determining the second evaporation temperature for preventing condensation of each indoor unit with energy demand based on the current first evaporation temperature of each indoor unit with energy demand includes: The second evaporation temperature is determined based on the first evaporation temperature and the corresponding temperature adjustment parameters.

[0007] In one embodiment, the second evaporation temperature is positively correlated with the nominal capacity corresponding to the temperature adjustment parameter, and / or the second evaporation temperature is positively correlated with the humidity parameter corresponding to the temperature adjustment parameter.

[0008] In one embodiment, the step of determining the temperature adjustment parameters based on the nominal capability includes: If the nominal capacity is less than or equal to the first preset capacity, the first temperature adjustment value is determined to be the temperature adjustment parameter; If the nominal capacity is greater than the first preset capacity and less than or equal to the second preset capacity, the second temperature adjustment value is determined to be the temperature adjustment parameter. If the nominal capacity is greater than the second preset capacity, the third temperature adjustment value is determined to be the temperature adjustment parameter; Wherein, the first preset capability is less than the second preset capability, the first temperature adjustment value is less than the second temperature adjustment value, and the second temperature adjustment value is less than the third temperature adjustment value.

[0009] In one embodiment, the step of determining the temperature adjustment parameter based on the humidity parameter includes: If the humidity parameter is less than the first preset humidity, the fourth temperature adjustment value is determined to be the temperature adjustment parameter. If the humidity parameter is greater than or equal to the first preset humidity and less than the second preset humidity, the fifth temperature adjustment value is determined to be the temperature adjustment parameter. If the humidity parameter is greater than or equal to the second preset humidity, the sixth temperature adjustment value is determined to be the temperature adjustment parameter; Wherein, the first preset humidity is less than the second preset humidity, the fourth temperature adjustment value is less than the fifth temperature adjustment value, and the fifth temperature adjustment value is less than the sixth temperature adjustment value.

[0010] In one embodiment, the step of determining the anti-condensation frequency of the compressor based on the second evaporation temperature includes: The reference frequency corresponding to the anti-condensation frequency is determined based on the second evaporation temperature; The maximum value between the reference frequency and the minimum frequency of the compressor is determined as the anti-condensation frequency.

[0011] In one embodiment, the indoor unit includes a first air outlet and a second air outlet, the area of ​​the first air outlet is larger than the area of ​​the second air outlet, and / or the air outlet direction of the indoor fan in the indoor unit is towards the first air outlet and not towards the second air outlet. After the step of controlling the environmental control system to operate in the first mode, the method further includes: When at least one indoor unit with energy demand is in a preset air outlet state, the step of determining the second evaporation temperature of each indoor unit with energy demand for anti-condensation based on the current first evaporation temperature of each indoor unit with energy demand is performed, provided that the anti-condensation conditions are met. The preset air outlet state includes both the first air outlet and the second air outlet being open, or the first air outlet being closed and the second air outlet being open.

[0012] In one embodiment, the indoor unit includes a first air outlet and a second air outlet, wherein the area of ​​the first air outlet is larger than the area of ​​the second air outlet and / or the air outlet direction of the indoor fan in the indoor unit is towards the first air outlet and not towards the second air outlet, and the control method of the environmental control system further includes: The anti-condensation conditions are determined based on the air outlet status of the indoor unit with energy demand, and different air outlet statuses correspond to different anti-condensation conditions. The air outlet state includes one of a first air outlet state, a second air outlet state, and a third air outlet state. The first air outlet state is when both the first air outlet and the second air outlet are open. The second air outlet state is when the first air outlet is closed and the second air outlet is open. The third air outlet state is when the first air outlet is open and the second air outlet is closed.

[0013] In one embodiment, the anti-condensation conditions include: The indoor temperature of the indoor space where the indoor unit with energy demand is located is greater than or equal to the first lower condensation limit temperature and less than or equal to the first upper condensation limit temperature, and / or the outdoor temperature of the environment where the environmental control system is located is greater than or equal to the second lower condensation limit temperature and less than or equal to the second upper condensation limit temperature. The indoor humidity of the space where the indoor unit with energy demand is located is greater than or equal to the first humidity threshold.

[0014] In one embodiment, the anti-condensation condition further includes: the rotational speed of the indoor fan in the indoor unit with energy requirements is less than or equal to the set rotational speed.

[0015] In one embodiment, after the step of determining the anti-condensation frequency of the compressor based on the second evaporation temperature and controlling the compressor to operate at the anti-condensation frequency, the method further includes: When the anti-condensation termination condition is met, the compressor is controlled to operate according to the target frequency corresponding to the current energy demand state of each indoor unit with energy demand; If the termination condition is not met, return to the step of determining the second evaporation temperature of each indoor unit with energy demand when anti-condensation is performed, based on the current first evaporation temperature of each indoor unit with energy demand. The termination condition includes at least one of the following: The indoor temperature of the indoor space where the indoor unit with energy demand is located is lower than the first condensation lower limit temperature, or the indoor temperature of the indoor space where the indoor unit with energy demand is located is higher than the first condensation upper limit temperature. The outdoor temperature of the environment where the environmental control system is located is lower than the second lower limit temperature of condensation, or the outdoor temperature of the environment where the environmental control system is located is higher than the second upper limit temperature of condensation. The operating mode of the environmental control system is switched to the second mode, in which none of the indoor units are in an evaporation state; The indoor fan speed in the indoor unit with energy demand is greater than the set speed; The indoor humidity of the indoor space where the indoor unit with energy demand is located is less than the second humidity threshold, and the second humidity threshold is less than the first humidity threshold; The duration for which the environmental control system meets the anti-condensation conditions is greater than or equal to a preset duration.

[0016] In addition, to achieve the above objectives, this application also proposes an environmental control system, which includes a control device, an outdoor unit, and at least two indoor units, wherein the outdoor unit includes a compressor connected to the at least two indoor units; Both the outdoor unit and the indoor unit are communicatively connected to the control device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. The computer program is configured to implement the steps of the control method for the environmental control system as described above.

[0017] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the control method of the environmental control system as described above.

[0018] The one or more technical solutions proposed in this application have at least the following technical effects: Based on an environmental control system with an outdoor unit and at least two indoor units connected to it, when there is a risk of condensation in the evaporation state of the indoor units, the evaporation temperature of each indoor unit is increased. The anti-condensation frequency of the compressor is controlled based on the increased evaporation temperature. Increasing the evaporation temperature of each indoor unit reduces the compressor's operating frequency, thereby reducing the condensation risk of all indoor units. The increased second evaporation temperature is not a pre-set fixed parameter, but a parameter determined based on the current first evaporation temperature of the indoor unit. This helps ensure that the anti-condensation frequency matches the actual operating conditions of the system, avoiding excessively high or low anti-condensation frequencies of the compressor, thus effectively reducing the condensation risk of each indoor unit, improving the reliability of indoor unit operation, and effectively ensuring the system's heat exchange effect. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an indoor unit in the environmental control system of this application and its different air outlet states; Figure 2 This is a schematic diagram of the installation structure of the indoor unit in the environmental control system of this application within an indoor space; Figure 3 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the control method of the environmental regulation system in the embodiments of this application; Figure 4 A flowchart illustrating the control method of the environmental control system of this application (Example 1); Figure 5 This is a flowchart illustrating the control method of the environmental control system in Embodiment 2 of this application.

[0022] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0024] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0025] The main solution of this application embodiment is: a control method based on an environmental control system, the environmental control system including an outdoor unit and at least two indoor units, the outdoor unit including a compressor connected to the at least two indoor units, the control method of the environmental control system including: controlling the environmental control system to operate in a first mode, in which at least one of the indoor units is in an evaporation state; under the condition of meeting anti-condensation requirements, determining a second evaporation temperature for each indoor unit with energy requirements to prevent condensation according to the current first evaporation temperature of each indoor unit with energy requirements, the second evaporation temperature being greater than the corresponding first evaporation temperature; determining the anti-condensation frequency of the compressor according to the second evaporation temperature, and controlling the compressor to operate at the anti-condensation frequency; wherein, the anti-condensation conditions indicate that there is a risk of condensation in the indoor unit.

[0026] In this embodiment, for ease of description, the environmental control system will be used as the implementing entity for the following description.

[0027] In related technologies, when there is a risk of condensation on the indoor unit during the cooling or dehumidification process of the system, the compressor usually directly reduces its frequency to the anti-condensation frequency. The anti-condensation frequency is usually a fixed frequency set in advance or a frequency determined based on a fixed parameter set in advance. This frequency is prone to mismatch with the actual operating conditions of the system. If the frequency is too high, condensation will occur in the indoor unit, resulting in poor operational reliability. If the frequency is too low, it will affect the heat exchange effect of the system.

[0028] This application provides the above-mentioned solution, which is based on an environmental control system with an outdoor unit and at least two indoor units connected to the outdoor unit. When there is a risk of condensation in the evaporation state of the indoor units, the evaporation temperature of each indoor unit is increased. Based on the increased evaporation temperature, the anti-condensation frequency of the compressor is controlled. The increase in the evaporation temperature of each indoor unit can reduce the operating frequency of the compressor, thereby reducing the condensation risk of all indoor units. The increased second evaporation temperature is not a pre-set fixed parameter, but a parameter determined based on the current first evaporation temperature of the indoor unit. Based on this, it is beneficial to ensure that the anti-condensation frequency matches the actual operation of the system, avoiding the compressor's anti-condensation frequency being too high or too low, thereby effectively reducing the condensation risk of each indoor unit, improving the reliability of indoor unit operation, and effectively ensuring the heat exchange effect of the system.

[0029] This application provides an environmental control system configured to regulate indoor air quality. The environmental control system may include an air conditioner, etc.

[0030] In this embodiment, refer to Figure 1and Figure 2 The environmental control system includes an outdoor unit 300 and at least two indoor units 200, each indoor unit 200 having at least two air outlets. In this embodiment, the different air outlets have different orientations and different air resistances. The outdoor unit 300 includes a compressor connected to the at least two indoor units 200.

[0031] Different indoor units 200 are installed in different indoor spaces.

[0032] In this embodiment, the indoor unit 200 is a ducted air conditioner. The installation height of the indoor unit 200 is higher than the height of a person.

[0033] The indoor unit 200 is equipped with an indoor air duct, and at least two air outlets are connected to the indoor air duct. An indoor heat exchanger 21 and an indoor fan 22 are installed in the indoor air duct. The indoor fan 22 can drive indoor air into the indoor air duct to exchange heat with the indoor heat exchanger 21 and then send it into the room from at least one air outlet.

[0034] In this embodiment, at least two air outlets include a first air outlet and a second air outlet. The indoor unit includes a first air outlet and a second air outlet. The area of ​​the first air outlet is larger than the area of ​​the second air outlet, and / or the air outlet direction of the indoor fan 22 in the indoor unit 200 is towards the first air outlet and not towards the second air outlet. When the rotation speed of the indoor fan 22 is the same, the air outlet resistance of the first air outlet is less than the air outlet resistance of the second air outlet.

[0035] In this embodiment, the indoor unit 200 includes a housing, which includes a base plate and a side plate connected to the base plate. The first air outlet is a side air outlet 201 located on the side plate, and the second air outlet is a lower air outlet 202 located on the base plate. Both the lower air outlet 202 and the side air outlet 201 are connected to the indoor air duct.

[0036] The base plate is the plate located at the bottom of the casing when the indoor unit 200 is installed in the indoor space, and the side plate is the plate on the casing adjacent to the base plate. When the indoor unit 200 is installed in the indoor space, the angle between the side plate and the wall of the indoor space (e.g., 0 degrees) is smaller than the angle between the base plate and the wall of the indoor space (e.g., 90 degrees).

[0037] The air outlet surface of the lower air outlet 202 intersects with the air outlet surface of the side air outlet 201. Without the guidance of an air guiding component, the air outlet direction of the lower air outlet 202 is downward (vertically downward or at an angle less than or equal to 45° with the vertical direction), and the air outlet direction of the side air outlet 201 is horizontal (along the horizontal direction or at an angle less than or equal to 45° with the horizontal direction). In this embodiment, the air outlet surface of the lower air outlet 202 is perpendicular to the air outlet surface of the side air outlet 201.

[0038] Without the assistance of air guiding components during the operation of the indoor fan 22, the air resistance when the air in the indoor duct exits from the lower air outlet 202 is greater than the air resistance when the air in the indoor duct exits from the side air outlet 201. In other words, when the indoor fan 22 rotates at the same speed, the air volume exiting from the lower air outlet 202 is less than the air volume exiting from the side air outlet 201. In this embodiment, the area of ​​the lower air outlet 202 is smaller than the area of ​​the side air outlet 201, and the angle between the air outlet direction of the indoor fan 22 and the air outlet surface of the side air outlet 201 is greater than the angle between the air outlet direction and the air outlet surface of the lower air outlet 202. That is, the air outlet direction of the indoor fan 22 is towards the side air outlet 201 and not towards the lower air outlet 202.

[0039] When the indoor unit 200 discharges air through the lower air outlet 202, the discharged air can not only regulate the air temperature of the indoor space, but also regulate the temperature of the indoor space's enclosure structure.

[0040] In other embodiments, at least two air outlets may be located on the side of the indoor unit 200, or the air outlets may have the same air outlet direction.

[0041] In this embodiment, the indoor unit 200 further includes an air outlet assembly 23, which is configured to adjust the air outlet state of the at least two air outlets, and can adjust the opening and / or closing of each air outlet and / or adjust the air volume.

[0042] The air outlet assembly 23 can be a single, integral structure or composed of more than one switch door. When the air outlet assembly 23 includes more than one switch door, the air outlet can correspond one-to-one with the switch door, and each switch door can adjust the air outlet state of its corresponding air outlet; or, some switch doors can simultaneously adjust the air outlet state of different air outlets.

[0043] In this embodiment, an air outlet assembly 23 is installed in the indoor air duct. The position of the air outlet assembly 23 can be changed to allow the lower air outlet 202 and the side air outlet 201 to cooperate in different air outlet states: Reference Figure 1 (a) The dashed line indicates the airflow direction. When the air outlet assembly 23 is in the first position, the lower air outlet 202 is open and the side air outlet 201 is closed. Reference Figure 1 (b) The dashed line indicates the airflow direction. When the air outlet assembly 23 is in the second position, the lower air outlet 202 is closed and the side air outlet 201 is open. Reference Figure 1 (c) and Figure 1 (d) The dashed line indicates the airflow direction. When the air outlet assembly 23 is in the third position, both the lower air outlet 202 and the side air outlet 201 are open.

[0044] In this embodiment, the air outlet assembly 23 includes a first switch door 231 and a second switch door 232, and the side air outlet 201 includes a first air outlet area and a second air outlet area. The first switch door 231 is configured to adjust the air volume of the first air outlet area, and the second switch door 232 is configured to adjust the air volume of the second air outlet area and the lower air outlet 202.

[0045] In this embodiment, the first air outlet area is the upper air outlet area away from the lower air outlet 202, and the second air outlet area is the lower air outlet area close to the lower air outlet 202. The first switch door 231 is rotatably installed on the upper side of the side air outlet 201 and can adjust the air volume of the upper air outlet area. The second switch door 232 is rotatably installed at the adjacent position between the lower air outlet 202 and the side air outlet 201. When the second switch door 232 rotates, it can simultaneously adjust the air volume of the lower air outlet area and the lower air outlet 202.

[0046] Reference Figure 1 (a) The first position includes the first switch door 231 being in the first position and the second switch door 232 being in the second position. Both the first switch door 231 and the second switch door 232 are in the windproof position. The first switch door 231 blocks the first air outlet area, and the second switch door 232 blocks the second air outlet area. That is, the angle between the panel of the two switches and the air outlet direction of the indoor fan 22 is greater than the preset angle. The first switch door 231 and the second switch door 232 cooperate to block the side air outlet 201 and open the lower air outlet 202. The air outlet of the indoor fan 22 is blown into the room from the lower air outlet 202 under the combined guiding effect of the first switch door 231 and the second switch door 232, and stops blowing into the room from the side air outlet 201.

[0047] Reference Figure 1 (b) The second position includes the first switch door 231 being in the third position and the second switch door 232 being in the fourth position. In the third position, the angle between the surface of the first switch door 231 and the air outlet direction of the indoor fan 22 is less than or equal to a preset angle (e.g., the surface of the first switch door 231 is parallel to the air outlet direction of the indoor fan 22), and the first switch door 231 opens the first air outlet area. In the fourth position, the angle between the surface of the second switch door 232 and the air outlet direction of the indoor fan 22 is less than or equal to a preset angle, and the second switch door 232 blocks the lower air outlet 202 and opens the second air outlet area. The first switch door 231 and the second switch door 232 cooperate to open the side air outlet 201, and the air from the indoor fan 22 is blown into the room from the side air outlet 201 under the combined guiding effect of the first switch door 231 and the second switch door 232, and stops blowing into the room from the lower air outlet 202. In some other implementations, the third position may also be the position that blocks the first air outlet area.

[0048] Reference Figure 1(d) The third position includes the first switch door 231 being in the third position and the second switch door 232 being in the fifth position. The fifth position is located between the second and fourth positions. In the fifth position, the second switch door 232 simultaneously opens the second air outlet area and the lower air outlet 202, at which time the side air outlets 201 are fully open. Alternatively, refer to Figure 1 (c) The third position state may include the first switch door 231 being in the third position and the second switch door 232 being in the second position. At this time, the side air outlet 201 is partially open and partially blocked. The first switch door 231 and the second switch door 232 cooperate to open the lower air outlet 202 and the side air outlet 201. The air from the indoor fan 22 is blown into the room from the lower air outlet 202 and the side air outlet 201 respectively under the combined air guiding effect of the first switch door 231 and the second switch door 232.

[0049] In other embodiments, the air outlet assembly 23 may also include a third air guide plate rotatably mounted between the lower air outlet 202 and the side air outlet 201. The third air guide plate can switch between a first operating position, a second operating position, and a third operating position. The first operating position is the position where the lower air outlet 202 is closed and the side air outlet 201 is open. The second operating position is the position where the side air outlet 201 is closed and the lower air outlet 202 is open. The third operating position is the position where both the lower air outlet 202 and the side air outlet 201 are open simultaneously.

[0050] In one embodiment, reference is made to Figure 2 The indoor unit 200 may further include a first panel disposed on the exterior of the housing, and a first air guide assembly 24 disposed on the first panel corresponding to the lower air outlet 202. The first air guide assembly 24 may include an air guide grille or an air guide plate, etc. The first panel is provided with a first clearance hole at the position corresponding to the lower air outlet 202, and the first air guide assembly 24 is disposed in the first clearance hole. The first air guide assembly 24 is located outside the indoor air duct.

[0051] The first air guide component 24 can adjust the air outlet state of the lower air outlet 202.

[0052] In some implementations, the first air guide component 24 may be an electronically controlled component, which may open or close the lower air outlet 202 and adjust the air outlet direction of the lower air outlet 202 in response to control commands.

[0053] In some other implementations, the first air guide component 24 can also be a fixed air guide component, in which case the air guiding state of the first air guide component 24 can be fixed and not changed by external control.

[0054] In one embodiment, reference is made to Figure 2The indoor unit 200 may also include a second panel disposed on the outside of the housing, on which a second air guide assembly 27 is disposed corresponding to the side air outlet 201. The second air guide assembly 27 may include an air guide grille or an air guide plate, etc. The second panel is provided with a second clearance hole at the position corresponding to the side air outlet 201, and the second air guide assembly 27 is disposed in the second clearance hole. The second air guide assembly 27 is located outside the indoor air duct.

[0055] The second air guide assembly 27 can adjust the air outlet state of the side air outlet 201.

[0056] In some implementations, the second air guide assembly 27 may be an electronically controlled assembly, which may open or close the side air outlet 201 and adjust the air outlet direction of the side air outlet 201 in response to control commands.

[0057] In some other implementations, the second air guide component 27 can also be a fixed air guide component, in which case the air guiding state of the second air guide component 27 can be fixed and not changed by external control.

[0058] In one embodiment, reference is made to Figure 2 The indoor unit 200 may also be provided with a return air vent 203 on its casing, through which indoor air can enter the indoor air duct of the indoor unit 200 under the drive of the indoor fan 22. The indoor unit 200 may also include a third panel on the outside of the casing, on which a third clearance hole may be provided corresponding to the return air vent 203, through which indoor air can enter the return air vent 203.

[0059] In one embodiment, the environmental control system may include at least two indoor units 200, each located in a different indoor space. For example, the environmental control system may be a multi-split air conditioner.

[0060] In one embodiment, the environmental control system includes a refrigerant circulation loop, which includes at least two indoor units 200, a throttling device, an outdoor heat exchanger, a reversing assembly, and a compressor. The compressor is connected to the indoor units 200. Each indoor unit 200 includes the indoor heat exchanger 21 and an indoor expansion valve connected in series. The indoor heat exchanger 21, the indoor expansion valve, the throttling device, and the outdoor heat exchanger are connected in sequence. The compressor, outdoor heat exchanger, reversing assembly, and throttling device may be located in the outdoor unit 300.

[0061] The compressor's exhaust port, compressor's return port, outdoor heat exchanger, and indoor unit 200 are all connected to the reversing assembly. The reversing assembly has a first operating state and a second operating state. When the reversing assembly is in the first operating state, the exhaust port is connected to the outdoor heat exchanger and the return port is connected to the indoor unit 200. When the reversing assembly is in the second operating state, the exhaust port is connected to the indoor unit 200 and the return port is connected to the outdoor heat exchanger.

[0062] Reference Figure 3 The environmental control system also includes a control device 100, and the indoor unit 200 and outdoor unit 300 are both communicatively connected to the control device 100.

[0063] The environmental control system also includes an environmental detection module 400 connected to the control device 100. The environmental detection module 400 can be located in the environment where the environmental control system is located to detect environmental status parameters (at least one such as ambient temperature, ambient humidity, and ambient enthalpy). The environmental detection module 400 may include an indoor environment module located in the space where the indoor unit is located and / or an outdoor environment module located in the outdoor environment.

[0064] The control device 100 includes: at least one processor 1001; and a memory 1002 communicatively connected to the at least one processor 1001, and a timer 1003, etc.; wherein the memory 1002 stores instructions that can be executed by the at least one processor 1001, the instructions being executed by the at least one processor 1001 to enable the at least one processor 1001 to execute the control method of the environmental regulation system in the following embodiment.

[0065] The following is for reference. Figure 3 The diagram illustrates a structural schematic suitable for implementing the control device 100 in the embodiments of this application. The control device 100 in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, PADs (Portable Application Description: Tablet PCs), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 3 The control device 100 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0066] like Figure 3As shown, the control device 100 may include a processor 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in memory 1002. The program in memory 1002 may be a program in read-only memory (ROM) or a program loaded from a storage device into random access memory (RAM). The RAM also stores various programs and data required for the operation of the control device 100. The processor 1001 and memory 1002 (ROM and RAM) are interconnected via a bus. An input / output (I / O) interface is also connected to the bus. Typically, the following systems can be connected to the I / O interface: input devices including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices including, for example, magnetic tapes, hard disks, etc.; and communication devices. The communication device allows the control device 100 to communicate wirelessly or wiredly with other devices to exchange data. Although the control unit 100 with various systems is shown in the figure, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented or have alternatively.

[0067] Specifically, according to the embodiments disclosed in this application, the method flow described in the following embodiments can be implemented as a computer software program. For example, the embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from memory 1002. When the computer program is executed by processor 1001, it performs the functions defined in the control method of the environmental control system of the embodiments disclosed in this application.

[0068] The environmental control system provided in this application, employing the control method of the environmental control system in the following embodiments, can solve the technical problem of how to reduce the risk of condensation in the indoor unit while ensuring the system's heat exchange effect. Compared with the prior art, the beneficial effects of the environmental control system provided in this application are the same as those of the control method of the environmental control system provided in the following embodiments, and other technical features of this environmental control system are the same as those disclosed in the method of the following embodiments, and will not be repeated here.

[0069] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an electronic device or environmental control system capable of performing the above functions. The following description uses an environmental control system as an example to illustrate this embodiment and the subsequent embodiments.

[0070] Based on this, embodiments of this application provide a control method for an environmental control system, referring to... Figure 4 , Figure 4 This is a flowchart illustrating the first embodiment of the control method for the environmental control system of this application.

[0071] In this embodiment, the control method of the environmental control system includes steps S10 to S30: Step S10: Control the environmental control system to operate in a first mode, in which at least one of the indoor units is in an evaporation state; The first mode may include a cooling mode or a dehumidification mode, etc. In the first mode, the compressor is on, the reversing component operates in a first operating state, and the throttling device operates at a throttling opening. The outdoor heat exchanger is in a condensing state, and at least one indoor heat exchanger is in an evaporating state. When at least one indoor unit is operating in the first mode, the environmental control system operates in the first mode, and the indoor heat exchanger in the indoor unit with the indoor expansion valve open is in an evaporating state. In the first mode, the indoor expansion valve of the indoor unit with energy demand is open, while the indoor expansion valve of the indoor unit without energy demand is closed or operates at a standby opening. An indoor unit with energy demand refers to one operating in the first mode where the indoor temperature in the corresponding indoor space has not reached the set temperature. An indoor unit without energy demand includes an indoor unit not operating in the first mode, or an indoor unit operating in the first mode where the indoor temperature in the corresponding indoor space has reached the set temperature.

[0072] Step S20: Under the condition of meeting the anti-condensation conditions, determine the second evaporation temperature of each indoor unit with energy demand for anti-condensation based on the current first evaporation temperature of each indoor unit with energy demand. The second evaporation temperature is greater than the corresponding first evaporation temperature. The anti-condensation conditions indicate that there is a risk of condensation in the indoor unit. Anti-condensation conditions may include environmental parameters of the environment where the environmental control system is located and / or the operating parameters of the environmental control system itself that need to be met. Anti-condensation conditions can be pre-set fixed conditions or conditions determined based on the actual operating conditions of the environmental control system.

[0073] In one feasible implementation, the indoor unit includes a first air outlet and a second air outlet, wherein the area of ​​the first air outlet is larger than the area of ​​the second air outlet and / or the air outlet direction of the indoor fan in the indoor unit is towards the first air outlet and not towards the second air outlet. The anti-condensation condition is determined based on the air outlet state of the indoor unit with energy demand, and different air outlet states correspond to different anti-condensation conditions. The air outlet state includes one of a first air outlet state, a second air outlet state, and a third air outlet state. The first air outlet state is that both the first and second air outlets are open; the second air outlet state is that the first air outlet is closed and the second air outlet is open; and the third air outlet state is that the first air outlet is open and the second air outlet is closed. For example, the discrimination thresholds in condition 1 and / or condition 2 and / or condition 3 can be determined based on the air outlet state of the indoor unit according to the method mentioned in subsequent embodiments.

[0074] In this embodiment, the first evaporation temperature is the target evaporation temperature that the indoor heat exchanger in the corresponding indoor unit, which is in an evaporation state, needs to reach. This temperature can be determined based on the indoor temperature of the space where the indoor unit is located, for example, based on the temperature difference between the indoor temperature and the set temperature. In other implementations, the first evaporation temperature can also be the current coil temperature of the indoor heat exchanger in the corresponding indoor unit, which can be detected by a temperature sensor installed on the coil of the indoor heat exchanger.

[0075] In this embodiment, the second evaporation temperature is the target evaporation temperature that the indoor heat exchanger in the indoor unit, which is in an evaporation state, needs to reach during the anti-condensation process.

[0076] In this case, a first evaporation temperature corresponds to a second evaporation temperature.

[0077] It should be noted that before the anti-condensation conditions are met, the compressor's operating frequency is determined based on the current first evaporation temperature of all indoor units with energy requirements. For example, the first overall target evaporation temperature of the environmental control system is determined based on all first evaporation temperatures, and the compressor's operating frequency is determined based on the first overall target evaporation temperature.

[0078] In the process of determining the second evaporation temperature based on the first evaporation temperature, the temperature range in which the first evaporation temperature is located can be determined, and the preset evaporation temperature corresponding to the temperature range can be determined as the second evaporation temperature; or, the first evaporation temperature can be substituted into a preset formula to calculate the second evaporation temperature; or, the second evaporation temperature can be determined based on the temperature adjustment parameter and the first evaporation temperature. The temperature adjustment parameter can be a preset fixed parameter or a parameter determined according to the actual situation of the system.

[0079] Step S30: Determine the anti-condensation frequency of the compressor based on the second evaporation temperature, and control the compressor to operate at the anti-condensation frequency.

[0080] In this embodiment, the compressor operating frequency at the current first evaporation temperature of all indoor units with energy demand, when the anti-condensation condition is not met, is greater than the anti-condensation frequency at the second evaporation temperature of all indoor units with energy demand. Specifically, the second overall target evaporation temperature of the environmental control system can be determined based on all second evaporation temperatures, and the anti-condensation frequency is determined based on the second overall target evaporation temperature. The first overall target evaporation temperature is lower than the second overall target evaporation temperature, and the anti-condensation frequency is negatively correlated with the second overall target evaporation temperature.

[0081] In determining the anti-condensation frequency based on the second evaporation temperature: In one implementation, the maximum evaporation temperature among all indoor units with energy demand can be determined as the second overall target evaporation temperature, and the anti-condensation frequency is determined based on the maximum evaporation temperature; in another implementation, the minimum evaporation temperature among all indoor units with energy demand can be determined as the second overall target evaporation temperature, and the anti-condensation frequency is determined based on the minimum evaporation temperature; in yet another implementation, a corresponding weight value is determined based on the operating status parameters of each indoor unit with energy demand, and the second overall target evaporation temperature is calculated by weighted averaging the second evaporation temperature of each indoor unit with energy demand and the corresponding weight value, and the anti-condensation frequency is determined based on the second overall target evaporation temperature. The operating status parameters may include the rated cooling capacity of the indoor unit and / or the temperature difference between the corresponding second evaporation temperature in the indoor unit and the current coil temperature of the indoor heat exchanger in that indoor unit, etc.

[0082] During the compressor's operation at the anti-condensation frequency: In one implementation, the compressor can be controlled to maintain operation at the anti-condensation frequency until the anti-condensation termination condition is met, that is, the compressor operates at a constant frequency during the anti-condensation process; In another implementation, the compressor can also be controlled to operate at the anti-condensation frequency for a set period of time and then return to execute the steps of determining the second evaporation temperature for each indoor unit with energy demand based on the current first evaporation temperature, determining the compressor's anti-condensation frequency based on the second evaporation temperature, and controlling the compressor to operate at the anti-condensation frequency, that is, the compressor's anti-condensation frequency during the anti-condensation process can adapt to the actual demand changes of the indoor units.

[0083] In cases where the anti-condensation conditions are not met, the compressor operation can be controlled according to the frequency corresponding to the current first evaporation temperature of the indoor unit with energy demand.

[0084] This embodiment provides a control method for an environmental control system. Based on an environmental control system with an outdoor unit and at least two indoor units connected to it, when there is a risk of condensation during the evaporation state of the indoor units, the evaporation temperature of each indoor unit is increased. Based on the increased evaporation temperature, the anti-condensation frequency of the compressor is controlled. Increasing the evaporation temperature of each indoor unit reduces the compressor's operating frequency. This reduced compressor frequency increases the outlet air temperature of the indoor unit, preventing condensation caused by the outlet air temperature being lower than the dew point temperature of the indoor environment. This reduces the condensation risk of all indoor units. The increased second evaporation temperature is not a pre-set fixed parameter, but a parameter determined based on the current first evaporation temperature of the indoor unit. This helps ensure that the anti-condensation frequency matches the actual operating conditions of the system, avoiding excessively high or low anti-condensation frequencies of the compressor, thereby effectively reducing the condensation risk of each indoor unit, improving the reliability of indoor unit operation, and effectively ensuring the system's heat exchange effect.

[0085] In one feasible implementation, the step of determining the anti-condensation frequency of the compressor based on the second evaporation temperature includes: determining a reference frequency corresponding to the anti-condensation frequency based on the second evaporation temperature; and determining the maximum value between the reference frequency and the minimum frequency of the compressor as the anti-condensation frequency.

[0086] The minimum frequency is the minimum value of the compressor's allowed operating frequency, which is preset.

[0087] In this embodiment, a reference frequency is determined based on the second evaporation temperature of all indoor units with energy requirements. For example, the reference frequency can be determined based on the aforementioned second total target evaporation temperature (maximum evaporation temperature, minimum evaporation temperature, or total target evaporation temperature calculated by weighted average, etc.), and the reference frequency is negatively correlated with the second total target evaporation temperature.

[0088] When the reference frequency is greater than or equal to the minimum frequency, the reference frequency is the anti-condensation frequency; when the reference frequency is less than the minimum frequency, the minimum frequency is the anti-condensation frequency.

[0089] In this embodiment, by using the above method, it can be ensured that the compressor operates within the required frequency during the anti-condensation process, thereby reducing the risk of condensation in the indoor unit and improving the overall reliability of the system.

[0090] In one feasible implementation, the anti-condensation conditions include: Condition 1: The indoor temperature of the indoor space where the indoor unit with energy requirements is located is greater than or equal to the first lower limit temperature of condensation and less than or equal to the first upper limit temperature of condensation, and / or the outdoor temperature of the environment where the environmental control system is located is greater than or equal to the second lower limit temperature of condensation and less than or equal to the second upper limit temperature of condensation. Condition 2: The indoor humidity of the indoor space where the indoor unit with energy needs is located is greater than or equal to the humidity threshold.

[0091] Condition 3: The speed of the indoor fan in the indoor unit with energy demand is less than or equal to the set speed.

[0092] Regarding condition 1, the indoor and outdoor temperatures can be the current temperatures detected by the aforementioned environmental detection module. The first lower condensation limit temperature is less than the first upper condensation limit temperature, and the second lower condensation limit temperature is less than the second upper condensation limit temperature. The first lower condensation limit temperature, the first upper condensation limit temperature, the second lower condensation limit temperature, and the second lower condensation limit temperature can be preset fixed temperatures, or parameters determined based on the actual operation of the environmental control system. For example, the corresponding first lower condensation limit temperature and / or first upper condensation limit temperature can be determined based on the air outlet status of the indoor unit with energy demand. The first air outlet status is when both the first and second air outlets are open; the second air outlet status is when the first air outlet is closed and the second air outlet is open; the third air outlet status is when the first air outlet is open and the second air outlet is closed; the first lower condensation limit temperature corresponding to the third air outlet status is less than the first lower condensation limit temperature corresponding to the first air outlet status, and / or the first upper condensation limit temperature corresponding to the third air outlet status is less than the first upper condensation limit temperature corresponding to the first air outlet status, and / or the first upper condensation limit temperature corresponding to the third air outlet status is less than the first upper condensation limit temperature corresponding to the first air outlet status, and / or the first upper condensation limit temperature corresponding to the second air outlet status. For example, the second lower limit temperature and / or the second upper limit temperature of condensation can be determined based on the air outlet state of the indoor unit with energy demand. For instance, the second lower limit temperature and / or the second upper limit temperature of condensation can be determined based on the first number of indoor units in the first air outlet state, the second number of indoor units in the second air outlet state, and the third number of indoor units in the third air outlet state, and based on the relationship between the sum of the first number and the second number and the third number, as well as the relationship between the first number and the second number.

[0093] Regarding condition 2, the indoor humidity can be the current humidity detected by the aforementioned environmental detection module. The first humidity threshold can be a pre-set fixed humidity value, or it can be a parameter determined based on the actual operation of the environmental control system. For example, the corresponding first humidity threshold can be determined based on the air outlet status of the indoor unit with energy demand, such as the first humidity threshold corresponding to the third air outlet status < the first humidity threshold corresponding to the first air outlet status < the first humidity threshold corresponding to the second air outlet status, and so on.

[0094] Regarding condition 3, the set speed can be a pre-set fixed speed or a parameter determined based on the actual operating conditions of the environmental control system. For example, the set speed can be determined according to the air outlet status of the indoor unit, with the set speed corresponding to the third air outlet status being less than the set speed corresponding to the first air outlet status, which in turn is less than the set speed corresponding to the second air outlet status.

[0095] In this embodiment, the anti-condensation condition is considered met when at least one indoor unit with energy demand satisfies conditions 1, 2, and 3. In other implementations, the anti-condensation condition is considered met when the number of indoor units with energy demand that satisfy conditions 1, 2, and 3 is greater than or equal to a preset number (at least two).

[0096] In this embodiment, the above method enables accurate identification of whether there is a risk of condensation on the indoor unit. Specifically, using the discrimination thresholds for various conditions of the airflow status of the indoor unit with energy demand helps ensure accurate identification of the risk of condensation in different airflow states.

[0097] In other embodiments, the anti-condensation conditions may include conditions 1 and 2 but not condition 3.

[0098] In other embodiments, the anti-condensation condition may also include the indoor unit having energy requirements being in a windless airflow state.

[0099] In one feasible implementation, after step S30, the method further includes: if the anti-condensation termination condition is met, controlling the compressor to operate according to the target frequency corresponding to the current energy demand state of each indoor unit with energy demand; if the termination condition is not met, returning to step S20; wherein the termination condition includes at least one of the following: Condition 4: The indoor temperature of the indoor space where the indoor unit with energy demand is located is lower than the first condensation lower limit temperature, or the indoor temperature of the indoor space where the indoor unit with energy demand is located is higher than the first condensation upper limit temperature. Condition 5: The outdoor temperature of the environment where the environmental control system is located is less than the second lower limit temperature of condensation, or the outdoor temperature of the environment where the environmental control system is located is greater than the second upper limit temperature of condensation. Condition 6: The operating mode of the environmental control system is switched to the second mode, in which none of the indoor units are in the evaporation state; Condition 7: The speed of the indoor fan in the indoor unit with energy demand is greater than the set speed; Condition 8: The indoor humidity of the indoor space where the indoor unit with energy demand is located is less than the second humidity threshold, and the second humidity threshold is less than the first humidity threshold. Condition 9: The duration for which the environmental control system meets the anti-condensation condition is greater than or equal to a preset duration.

[0100] The current energy demand status may include the temperature difference between the indoor temperature and the set temperature. The target evaporation temperature of the corresponding indoor unit is determined based on the temperature difference. The third total target evaporation temperature is determined based on the target evaporation temperatures of all indoor units with energy demand. The target frequency is determined based on the third total target evaporation temperature. The compressor is controlled to operate at the target frequency. It should be noted that when the values ​​of the second total target evaporation temperature and the third total target evaporation temperature are the same, the target frequency corresponding to the third total target evaporation temperature is greater than the anti-condensation frequency corresponding to the second total target evaporation temperature.

[0101] In cases where there are more than one indoor unit with energy demand in conditions 4, 7, and 8, satisfying at least one indoor unit with energy demand in condition 4, 7, or 8 is considered to satisfy the corresponding termination condition. In other implementations, satisfying all indoor units with energy demand in condition 4, 7, or 8 is also considered to satisfy the corresponding termination condition.

[0102] In this embodiment, by using the above method, it is possible to accurately determine whether the indoor unit no longer has the risk of condensation, improve the accuracy of the anti-condensation control shutdown, thereby further reducing the risk of condensation while ensuring the heat exchange effect of the system.

[0103] Based on any of the above embodiments, in the second embodiment of this application, the same or similar content as the above embodiments can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 5 Before the step of determining the second evaporation temperature for anti-condensation of each indoor unit with energy demand based on the current first evaporation temperature of each indoor unit with energy demand, the method further includes: Step S201: Obtain the nominal capacity of the outdoor unit and / or the humidity parameters of the space where the indoor unit with energy requirements is located; The nominal capacity is the rated cooling capacity of the outdoor unit, which can be obtained by acquiring the configuration parameters pre-stored in the system.

[0104] Humidity parameters can include absolute humidity or relative humidity, and can be detected by an environmental detection module. In this embodiment, the humidity parameter is relative humidity.

[0105] Step S201 can be performed if the anti-condensation conditions are met.

[0106] Step S202: Determine the temperature adjustment parameters based on the nominal capacity and / or the humidity parameters; Temperature adjustment parameters may include temperature adjustment percentage or temperature adjustment amplitude.

[0107] Different nominal capacities and / or different humidity parameters correspond to different temperature adjustment parameters. The correspondence between nominal capacities and / or humidity parameters and temperature adjustment parameters can be in the form of formulas, mapping relationships, etc., and the temperature adjustment parameters corresponding to the current nominal capacity and / or humidity parameters can be determined based on this correspondence.

[0108] The correspondence between nominal capacity and / or humidity parameters and temperature adjustment parameters can be a pre-set fixed relationship or a target correspondence obtained based on the actual situation of the environmental control system. In one implementation, the target correspondence can be obtained based on the first number of indoor units in the first air outlet state, the second number of indoor units in the second air outlet state, and the third number of indoor units in the third air outlet state among all indoor units currently in the environmental control system with energy demand. The first air outlet state is when both the first and second air outlets are open; the second air outlet state is when the first air outlet is closed and the second air outlet is open; and the third air outlet state is when the first air outlet is open and the second air outlet is closed. For example, the total number of the first and second numbers can be determined, and the target correspondence can be obtained based on the relationship value (difference or ratio, etc.) between the total number and the third number, as well as the relationship value (difference or ratio, etc.) between the first and second numbers.

[0109] In one implementation, the process of determining the temperature adjustment parameter based on the nominal capacity is as follows: If the nominal capacity is less than or equal to a first preset capacity, a first temperature adjustment value is determined as the temperature adjustment parameter; if the nominal capacity is greater than the first preset capacity and less than or equal to a second preset capacity, a second temperature adjustment value is determined as the temperature adjustment parameter; if the nominal capacity is greater than the second preset capacity, a third temperature adjustment value is determined as the temperature adjustment parameter; wherein, the first preset capacity (e.g., 18KW) is less than the second preset capacity (e.g., 24KW), the first temperature adjustment value is less than the second temperature adjustment value, and the second temperature adjustment value is less than the third temperature adjustment value. When the first, second, and third temperature adjustment values ​​are temperature adjustment amplitudes, they can all be positive values; when the first, second, and third temperature adjustment values ​​are temperature adjustment ratios, they can all be greater than 1.

[0110] In another implementation, the process of determining the temperature adjustment parameter based on the humidity parameter is as follows: If the humidity parameter is less than a first preset humidity, a fourth temperature adjustment value is determined as the temperature adjustment parameter; if the humidity parameter is greater than or equal to the first preset humidity and less than a second preset humidity, a fifth temperature adjustment value is determined as the temperature adjustment parameter; if the humidity parameter is greater than or equal to the second preset humidity, a sixth temperature adjustment value is determined as the temperature adjustment parameter; wherein, the first preset humidity (e.g., 65%) is less than the second preset humidity (e.g., 80%), the fourth temperature adjustment value is less than the fifth temperature adjustment value, and the fifth temperature adjustment value is less than the sixth temperature adjustment value. When the fourth, fifth, and sixth temperature adjustment values ​​are temperature adjustment amplitudes, they can all be positive values; when the fourth, fifth, and sixth temperature adjustment values ​​are temperature adjustment ratios, they can all be greater than 1.

[0111] In another implementation, a reference temperature adjustment value can be determined based on the nominal capacity, a temperature correction value can be determined based on the humidity parameter, and the reference temperature adjustment value can be corrected based on the temperature correction value to obtain the temperature adjustment parameter. The reference temperature adjustment value and the nominal capacity can be positively correlated, and the humidity parameter and the correction value can be positively correlated.

[0112] Based on steps S201 and S202, referring to Figure 5 The step of determining the second evaporation temperature for preventing condensation of each indoor unit with energy demand based on the current first evaporation temperature of each indoor unit with energy demand includes: Step S203: Determine the second evaporation temperature according to the first evaporation temperature and the corresponding temperature adjustment parameters.

[0113] The second evaporation temperature is positively correlated with the nominal capacity corresponding to the temperature adjustment parameter, and / or the second evaporation temperature is positively correlated with the humidity parameter corresponding to the temperature adjustment parameter. That is, as the nominal capacity increases, the second evaporation temperature corresponding to the first evaporation temperature tends to increase; as the nominal capacity decreases, the second evaporation temperature corresponding to the first evaporation temperature tends to decrease; as the humidity parameter increases, the second evaporation temperature corresponding to the first evaporation temperature tends to increase; as the humidity parameter decreases, the second evaporation temperature corresponding to the first evaporation temperature tends to decrease.

[0114] In one implementation method, the temperature adjustment parameter includes the temperature adjustment amplitude. The difference between the first evaporation temperature and the temperature adjustment amplitude can be used as the second evaporation temperature, in which case the temperature adjustment amplitude is a negative value.

[0115] In another implementation, the temperature adjustment parameter includes a temperature adjustment amplitude, and the sum of the first evaporation temperature and the temperature adjustment amplitude can be used as the second evaporation temperature, in which case the temperature adjustment amplitude is a positive value.

[0116] In another implementation, the temperature adjustment parameter includes a temperature adjustment ratio. The product of the first evaporation temperature and the temperature adjustment ratio can be used as the second evaporation temperature, in which case the temperature adjustment ratio is greater than 1.

[0117] In this embodiment, by using the above method, the matching degree between the anti-condensation frequency determined based on the second evaporation temperature and the actual operation of the system can be further improved, thereby further reducing the condensation risk of each indoor unit while ensuring the heat exchange effect of the system.

[0118] Based on any of the above embodiments, in the third embodiment of this application, the same or similar content as the above embodiments can be referred to the above description, and will not be repeated hereafter. Based on this, the indoor unit includes a first air outlet and a second air outlet. The area of ​​the first air outlet is larger than the area of ​​the second air outlet, and / or the air outlet direction of the indoor fan in the indoor unit is towards the first air outlet and not towards the second air outlet. When the indoor fan speed is constant, the air outlet resistance of the second air outlet is greater than the air outlet resistance of the first air outlet. When the second air outlet is open, due to the larger air outlet resistance, cold air easily accumulates near the second air outlet, causing condensation at the second air outlet. Based on this, after step S10, the method further includes: when at least one indoor unit with energy demand is in a preset air outlet state, performing the step of determining the second evaporation temperature for each indoor unit with energy demand under the condition of meeting the anti-condensation conditions, based on the current first evaporation temperature of each indoor unit with energy demand; wherein, the preset air outlet state includes both the first air outlet and the second air outlet being open, or the first air outlet being closed and the second air outlet being open.

[0119] In cases where all indoor units with energy requirements are not in the preset air outlet state (e.g., in the third air outlet state mentioned above), the environmental control system can perform anti-condensation operation when the preset condensation conditions are met. The preset condensation conditions indicate a risk of condensation on the indoor units, but they differ from the aforementioned anti-condensation conditions. In one implementation, the anti-condensation conditions include conditions 1, 2, and 3; the preset condensation conditions include conditions 1 and 2 but not condition 3, and the threshold values ​​for conditions 1 and 2 in the anti-condensation conditions are both greater than the corresponding threshold values ​​for conditions 1 and 2 in the preset condensation conditions.

[0120] In this embodiment, since the indoor unit with a first air outlet and a second air outlet is prone to cold air accumulation when the second air outlet is opened, the risk of condensation is high. Therefore, the anti-condensation control based on the above steps S20 and S30 is beneficial to ensure that the indoor unit can trigger the anti-condensation protection in a timely manner, effectively improving the reliability of the indoor unit operation and ensuring the indoor heat exchange effect.

[0121] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the control method of the environmental control system of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0122] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the control method of the environmental control system in the above embodiments.

[0123] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0124] The aforementioned computer-readable storage medium may be included in the environmental control system; or it may exist independently and not be assembled into the environmental control system.

[0125] The aforementioned computer-readable storage medium carries one or more programs, which, when executed by a processor, cause the processor to execute the flow in the control method embodiment of the aforementioned environmental regulation system.

[0126] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0127] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the control method of the above-described environmental control system. This solves the technical problem of how to reduce the risk of condensation in the indoor unit while ensuring the system's heat exchange effect. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the control method of the environmental control system provided in the above embodiments, and will not be elaborated upon here.

[0128] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0129] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. Modules described in the embodiments of this application can be implemented in software or hardware. The names of modules do not necessarily limit the specific unit itself. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0130] The above descriptions are merely some embodiments of this application and do not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the content of this specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application. Therefore, the protection scope of this application should be determined by the scope of the claims.

Claims

1. A control method for an environmental control system, characterized in that, The environmental control system includes an outdoor unit and at least two indoor units, the outdoor unit including a compressor connected to the at least two indoor units, and the control method of the environmental control system includes: The environmental control system is controlled to operate in a first mode, in which at least one of the indoor units is in an evaporation state; Under the condition of meeting the anti-condensation conditions, the second evaporation temperature of each indoor unit with energy demand is determined according to the current first evaporation temperature of each indoor unit with energy demand, and the second evaporation temperature is greater than the corresponding first evaporation temperature. The anti-condensation frequency of the compressor is determined based on the second evaporation temperature, and the compressor is controlled to operate at the anti-condensation frequency. The anti-condensation condition indicates that there is a risk of condensation on the indoor unit; The step of determining the anti-condensation frequency of the compressor based on the second evaporation temperature includes: The corresponding weight value is determined based on the operating status parameters of each indoor unit with energy demand; The second overall target evaporation temperature is calculated by weighting the second evaporation temperature of each indoor unit with energy demand and its corresponding weight value. The frequency of anti-condensation measures is determined based on the second overall target evaporation temperature. The operating status parameters include the rated cooling capacity of the indoor unit and / or the temperature difference between the corresponding second evaporation temperature in the indoor unit and the current coil temperature of the indoor heat exchanger in the indoor unit.

2. The control method for the environmental control system as described in claim 1, characterized in that, Before the step of determining the second evaporation temperature for anti-condensation of each indoor unit with energy demand based on the current first evaporation temperature of each indoor unit with energy demand, the method further includes: Obtain the nominal capacity of the outdoor unit and / or the humidity parameters of the space where the indoor unit is located; Determine the temperature adjustment parameters based on the nominal capacity and / or the humidity parameters; The step of determining the second evaporation temperature for preventing condensation of each indoor unit with energy demand based on the current first evaporation temperature of each indoor unit with energy demand includes: The second evaporation temperature is determined based on the first evaporation temperature and the corresponding temperature adjustment parameters.

3. The control method for the environmental control system as described in claim 2, characterized in that, The second evaporation temperature is positively correlated with the nominal capacity corresponding to the temperature adjustment parameter, and / or the second evaporation temperature is positively correlated with the humidity parameter corresponding to the temperature adjustment parameter.

4. The control method for the environmental control system as described in claim 3, characterized in that, The step of determining the temperature adjustment parameters based on the nominal capacity includes: If the nominal capacity is less than or equal to the first preset capacity, the first temperature adjustment value is determined to be the temperature adjustment parameter; If the nominal capacity is greater than the first preset capacity and less than or equal to the second preset capacity, the second temperature adjustment value is determined to be the temperature adjustment parameter. If the nominal capacity is greater than the second preset capacity, the third temperature adjustment value is determined to be the temperature adjustment parameter; Wherein, the first preset capability is less than the second preset capability, the first temperature adjustment value is less than the second temperature adjustment value, and the second temperature adjustment value is less than the third temperature adjustment value.

5. The control method for the environmental control system as described in claim 3, characterized in that, The step of determining the temperature adjustment parameter based on the humidity parameter includes: If the humidity parameter is less than the first preset humidity, the fourth temperature adjustment value is determined to be the temperature adjustment parameter. If the humidity parameter is greater than or equal to the first preset humidity and less than the second preset humidity, the fifth temperature adjustment value is determined to be the temperature adjustment parameter. If the humidity parameter is greater than or equal to the second preset humidity, the sixth temperature adjustment value is determined to be the temperature adjustment parameter; Wherein, the first preset humidity is less than the second preset humidity, the fourth temperature adjustment value is less than the fifth temperature adjustment value, and the fifth temperature adjustment value is less than the sixth temperature adjustment value.

6. The control method for the environmental control system as described in claim 1, characterized in that, The step of determining the anti-condensation frequency of the compressor based on the second evaporation temperature includes: The reference frequency corresponding to the anti-condensation frequency is determined based on the second overall target evaporation temperature; The maximum value between the reference frequency and the minimum frequency of the compressor is determined as the anti-condensation frequency.

7. The control method for the environmental control system as described in claim 1, characterized in that, The indoor unit includes a first air outlet and a second air outlet, wherein the area of ​​the first air outlet is larger than the area of ​​the second air outlet and / or the air outlet direction of the indoor fan in the indoor unit is towards the first air outlet and not towards the second air outlet. After the step of controlling the environmental control system to operate in the first mode, the system further includes: When at least one indoor unit with energy demand is in a preset air outlet state, the step of determining the second evaporation temperature of each indoor unit with energy demand for anti-condensation based on the current first evaporation temperature of each indoor unit with energy demand is performed, provided that the anti-condensation conditions are met. The preset air outlet state includes both the first air outlet and the second air outlet being open, or the first air outlet being closed and the second air outlet being open.

8. The control method for the environmental control system as described in claim 1, characterized in that, The indoor unit includes a first air outlet and a second air outlet, wherein the area of ​​the first air outlet is larger than the area of ​​the second air outlet and / or the air outlet direction of the indoor fan in the indoor unit is towards the first air outlet and not towards the second air outlet, and the control method of the environmental control system further includes: The anti-condensation conditions are determined based on the air outlet status of the indoor unit with energy demand, and different air outlet statuses correspond to different anti-condensation conditions. The air outlet state includes one of a first air outlet state, a second air outlet state, and a third air outlet state. The first air outlet state is when both the first air outlet and the second air outlet are open. The second air outlet state is when the first air outlet is closed and the second air outlet is open. The third air outlet state is when the first air outlet is open and the second air outlet is closed.

9. The control method for the environmental control system as described in any one of claims 1 to 8, characterized in that, The anti-condensation conditions include: The indoor temperature of the indoor space where the indoor unit with energy demand is located is greater than or equal to the first lower condensation limit temperature and less than or equal to the first upper condensation limit temperature, and / or the outdoor temperature of the environment where the environmental control system is located is greater than or equal to the second lower condensation limit temperature and less than or equal to the second upper condensation limit temperature. The indoor humidity of the space where the indoor unit with energy demand is located is greater than or equal to the first humidity threshold.

10. The control method for the environmental control system as described in claim 9, characterized in that, The anti-condensation conditions also include: the speed of the indoor fan in the indoor unit with energy requirements is less than or equal to the set speed.

11. The control method for the environmental control system as described in claim 9, characterized in that, After the step of determining the anti-condensation frequency of the compressor based on the second evaporation temperature and controlling the compressor to operate at the anti-condensation frequency, the method further includes: When the anti-condensation termination condition is met, the compressor is controlled to operate according to the target frequency corresponding to the current energy demand state of each indoor unit with energy demand; If the termination condition is not met, return to the step of determining the second evaporation temperature of each indoor unit with energy demand when anti-condensation is performed, based on the current first evaporation temperature of each indoor unit with energy demand. The termination condition includes at least one of the following: The indoor temperature of the indoor space where the indoor unit with energy demand is located is lower than the first condensation lower limit temperature, or the indoor temperature of the indoor space where the indoor unit with energy demand is located is higher than the first condensation upper limit temperature. The outdoor temperature of the environment where the environmental control system is located is lower than the second lower limit temperature of condensation, or the outdoor temperature of the environment where the environmental control system is located is higher than the second upper limit temperature of condensation. The operating mode of the environmental control system is switched to the second mode, in which none of the indoor units are in an evaporation state; The indoor fan speed in the indoor unit with energy demand is greater than the set speed; The indoor humidity of the indoor space where the indoor unit with energy demand is located is less than the second humidity threshold, and the second humidity threshold is less than the first humidity threshold; The duration for which the environmental control system meets the anti-condensation conditions is greater than or equal to a preset duration.

12. An environmental control system, characterized in that, The environmental control system includes a control device, an outdoor unit, and at least two indoor units, wherein the outdoor unit includes a compressor connected to the at least two indoor units; Both the outdoor unit and the indoor unit are communicatively connected to the control device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. The computer program is configured to implement the steps of the control method for the environmental control system as described in any one of claims 1 to 11.

13. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the control method of the environmental control system as described in any one of claims 1 to 11.

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