Control method of fresh air system, fresh air system and storage medium

Abstract

The invention discloses a control method of a fresh air system, the fresh air system and a storage medium. The method comprises the steps that a target fresh air machine in the fresh air system is controlled to execute an on-off switching action, and environment change parameters, before and after the on-off switching action, of each alternative indoor space adjusted by the fresh air system are obtained; and whether each alternative indoor space is a target space matched with the target fresh air ventilator or not is determined according to the environment change parameters. The invention aims to improve the matching efficiency and accuracy of the fresh air ventilator and the indoor space so as to ensure the accurate regulation and control of the indoor environment of different indoor spaces.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh air systems, and in particular to a control method for a fresh air system, a fresh air system, and a storage medium. Background Art

[0002] When a fresh air system needs to introduce fresh air into multiple indoor spaces, generally a fresh air machine will be correspondingly set for each indoor space, and different fresh air machines correspondingly adjust the air in different indoor spaces. Among them, in order to ensure precise control of multiple fresh air machines, the control system needs to obtain the matching relationship between the fresh air machine and the indoor space.

[0003] However, currently, the matching relationship between the fresh air machine and the indoor space it adjusts is judged, matched, and entered and stored manually. However, such a method not only has low efficiency but also is prone to matching errors, resulting in the indoor environment not reaching the user's comfortable state. Summary of the Invention

[0004] The main object of the present invention is to provide a control method for a fresh air system, a fresh air system, and a storage medium, aiming to improve the efficiency and accuracy of the matching between the fresh air machine and the indoor space, so as to ensure precise regulation of the indoor environment in different indoor spaces.

[0005] To achieve the above object, the present invention provides a control method for a fresh air system, and the control method for the fresh air system includes the following steps:

[0006] Control the target fresh air machine in the fresh air system to perform a switch switching action, and obtain the environmental change parameters of each alternative indoor space adjusted by the fresh air system before and after the switch switching action;

[0007] Determine whether each of the alternative indoor spaces is a target space matched with the target fresh air machine according to the environmental change parameters.

[0008] Optionally, before the step of controlling the target fresh air machine in the fresh air system to perform a switch switching action, the method further includes:

[0009] Control the target fresh air machine to run a target mode, and detect the first environmental parameters of each of the alternative indoor spaces;

[0010] The step of controlling the target fresh air machine in the fresh air system to perform a switch switching action and obtaining the environmental change parameters of each alternative indoor space adjusted by the fresh air system before and after the switch switching action includes:

[0011] Control the target fresh air machine to switch from the on state to the off state, and detect the second environmental parameters of each of the alternative indoor spaces;

[0012] Determine the environmental change parameter according to the deviation value between the first environmental parameter and the second environmental parameter.

[0013] Optionally, the target module includes a dehumidification mode, the first environmental parameter includes a first dew point temperature, the second environmental parameter includes a second dew point temperature, and the environmental change parameter includes a dew point change value.

[0014] Optionally, the fresh air system includes at least two fresh air machines, the target fresh air machine is one of the at least two fresh air machines, and after the step of determining whether each of the alternative indoor spaces is a target space matched with the target fresh air machine according to the environmental change parameter, the method further includes:

[0015] Determine the unknown fresh air machine among the at least two fresh air machines as the new target fresh air machine, and return to execute the step of controlling the target fresh air machine in the fresh air system to perform a switching action, and obtaining the environmental change parameters of each alternative indoor space regulated by the fresh air system before and after the switching action, until there is no unknown fresh air machine or the number of unknown fresh air machines is one;

[0016] Wherein, the alternative indoor space is the indoor space of the fresh air machine with unknown matching, and the unknown fresh air machine is the fresh air machine of the target space with unknown matching.

[0017] Optionally, after the step of determining whether each of the alternative indoor spaces is a target space matched with the target fresh air machine according to the environmental change parameter, the method further includes:

[0018] When the number of unknown fresh air machines is one, determine that all current alternative indoor spaces are target spaces matched with the unknown fresh air machine.

[0019] Optionally, the environmental change parameter of each alternative indoor space is determined according to the deviation value between the corresponding third environmental parameter and the fourth environmental parameter, the third environmental parameter is the parameter detected after the previous target fresh air machine performs a switching action, and the fourth environmental parameter is the parameter detected after the current target fresh air machine performs a switching action.

[0020] Optionally, before the step of controlling the target fresh air machine in the fresh air system to perform a switching action, the method further includes:

[0021] Control all fresh air machines in the fresh air system to operate in a target mode;

[0022] The step of controlling the target fresh air machine in the fresh air system to perform a switching action includes:

[0023] Control the target fresh air machine to switch from the on state to the off state.

[0024] Optionally, the step of determining whether each of the alternative indoor spaces is a target space matched with the target fresh air unit according to the environmental change parameter includes:

[0025] Determining that the alternative indoor space where the environmental change parameter satisfies the first preset condition is the target space matched with the target fresh air unit;

[0026] Determining that the alternative indoor space where the environmental change parameter does not satisfy the first preset condition is an unknown space other than the target space adjusted by the target fresh air unit;

[0027] Wherein, the first preset condition includes that the environmental change parameter is greater than the first preset parameter change value.

[0028] Optionally, before the step of controlling the target fresh air unit in the fresh air system to perform the switch switching action, it further includes:

[0029] Controlling all fresh air units in the fresh air system to start the target mode, and acquiring the environmental data of all preset spaces;

[0030] Determining the indoor spaces adjusted by the fresh air system among all preset spaces according to the environmental data, where the alternative indoor spaces include the indoor spaces or the indoor spaces of the fresh air units with unknown matching.

[0031] Optionally, the environmental data includes an initial environmental change parameter, and the step of determining the indoor spaces adjusted by the fresh air system among all preset spaces according to the environmental data includes:

[0032] Determining that the preset space satisfying the second preset condition is the indoor space adjusted by the fresh air system;

[0033] Wherein, the second preset condition includes that the initial environmental change parameter is greater than the second preset parameter change value.

[0034] Optionally, the control method of the fresh air system further includes:

[0035] Controlling the target fresh air unit to start the target mode;

[0036] When the running duration of the target fresh air unit in the target mode reaches the preset duration, acquiring the air outlet parameters of the target fresh air unit;

[0037] When the air outlet parameters satisfy the third preset condition for the normal operation of the target mode, performing the step of controlling the target fresh air unit in the fresh air system to perform the switch switching action, and acquiring the environmental change parameters of each alternative indoor space adjusted by the fresh air system before and after the switch switching action;

[0038] When the air outlet parameters do not meet the third preset condition, a fault prompt message of the fresh air machine is output.

[0039] Optionally, the target mode includes a dehumidification mode;

[0040] The air outlet parameters include the air outlet dew point temperature, and the third preset condition includes that the air outlet dew point temperature is less than or equal to a preset dew point temperature; or, the air outlet parameters include the moisture content of the supply air, and the third preset condition includes that the difference between the moisture content of the incoming air and the moisture content of the supply air of the fresh air machine is greater than a preset value.

[0041] Optionally, the control method of the fresh air system further includes:

[0042] Obtain the environmental parameters of the environment where the fresh air system is located;

[0043] Determine the target mode according to the environmental parameters.

[0044] In addition, to achieve the above object, the present application also proposes a fresh air system, the fresh air system includes a control device and a fresh air machine connected to the control device, the control device includes: a memory, a processor, and a control program of the fresh air system stored on the memory and executable on the processor, and when the control program of the fresh air system is executed by the processor, the steps of the control method of the fresh air system described in any one of the above are implemented.

[0045] In addition, to achieve the above object, the present application also proposes a storage medium, on which a control program of the fresh air system is stored, and when the control program of the fresh air system is executed by a processor, the steps of the control method of the fresh air system described in any one of the above are implemented.

[0046] A control method of a fresh air system proposed by the present invention, the method controls a target fresh air machine in the fresh air system to perform a switch switching action, obtains the environmental change parameters of each alternative indoor space adjusted by the fresh air system before and after the switch action is switched, and determines whether each alternative indoor space is a target space matched with the target fresh air machine according to the environmental change parameters. In this process, no manual participation is required, and the matching relationship between the fresh air machine and the indoor space can be obtained through the monitoring of environmental data and data processing and analysis, so as to improve the efficiency and accuracy of the matching between the fresh air machine and the indoor space, so as to ensure the precise regulation of the indoor environment of different indoor spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the hardware structure involved in the operation of an embodiment of the fresh air system of the present invention;

[0048] Figure 2 It is a schematic flowchart of an embodiment of the control method of the fresh air system of the present invention;

[0049] Figure 3 Schematic flow chart of another embodiment of the control method for the fresh air system of the present invention;

[0050] Figure 4 Schematic flow chart of still another embodiment of the control method for the fresh air system of the present invention;

[0051] Figure 5 Schematic flow chart of another alternative embodiment of the control method for the fresh air system of the present invention.

[0052] The realization of the object of the present invention, functional features and advantages will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0053] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0054] An embodiment of the present invention provides a fresh air system.

[0055] In this embodiment, the fresh air system includes a control device 1 and a fresh air machine 2, and the fresh air machine 2 is connected to the control device 1.

[0056] The number of the fresh air machines 2 can be one or more than one. When the number of the fresh air machines 2 is more than one, different fresh air machines 2 adjust the air in different indoor spaces. Specifically, corresponding fresh air pipelines can be set for each indoor space, and the fresh air machine 2 can be communicated with the fresh air pipeline of the indoor space to be adjusted.

[0057] Among them, the number of indoor spaces adjusted by the fresh air machine 2 can be one or more than one. The indoor spaces adjusted by different fresh air machines 2 can be different from each other or partially the same.

[0058] In this embodiment, the fresh air machine 2 includes a air supply device and an exhaust device. The air supply device is used to drive outdoor fresh air into the indoor space, and the exhaust device is used to drive indoor air out of the outdoor.

[0059] Furthermore, in this embodiment, the fresh air machine 2 may further include a heat pump device. The first heat exchanger in the heat pump device is arranged in the air supply duct of the air supply device to adjust the temperature and / or humidity of the fresh air. Further, the second heat exchanger of the heat device can be arranged in the air supply duct or the exhaust duct of the exhaust device. When the second heat exchanger is arranged in the exhaust duct, it can recover the heat of the indoor air discharged outdoors to improve the energy efficiency of the system; when the second heat exchanger is arranged in the air supply duct, it can cooperate with the first heat exchanger to realize the temperature and humidity adjustment of the fresh air.

[0060] In this embodiment, the fresh air machine 2 is an all-in-one machine.

[0061] Further, in this embodiment, the number of heat pump devices may be more than one, and the more than one heat exchangers corresponding to the more than one heat pump devices may be arranged along the fresh air flow direction in the air supply duct.

[0062] Further, the fresh air system further includes an environment detection module 3 connected to the control device 1. The environment detection module 3 may include environment sensors for each indoor space to detect the environment data of each indoor space, such as indoor temperature and / or indoor humidity and / or indoor pollutant concentration and / or indoor enthalpy value and / or indoor moisture content and / or indoor dew point temperature, etc.

[0063] Further, the fresh air system may further include an air detection module 4 connected to the control device 1. The air detection module 4 may be arranged at the fresh air outlet of the indoor space to detect the fresh air outlet parameters, such as fresh air outlet humidity and / or fresh air outlet temperature and / or fresh air outlet moisture content and / or fresh air outlet dew point temperature, etc.

[0064] Further, the fresh air system may further include an outdoor detection module 5 connected to the control device 1. The outdoor detection module 5 may be arranged at the fresh air inlet of the fresh air machine 2 to detect the fresh air inlet parameters, such as fresh air inlet humidity and / or fresh air inlet temperature and / or fresh air inlet moisture content and / or fresh air inlet dew point temperature, etc.

[0065] In the embodiment of the present invention, referring to Figure 1 , the control device 1 of the fresh air system includes: a processor 1001, such as a CPU, a memory 1002, and a timer 1003. Among them, these components are connected and communicate with each other through a communication bus. The memory 1002 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. Optionally, the memory 1002 may also be a storage device independent of the aforementioned processor 1001.

[0066] Those skilled in the art can understand that Figure 1 the device structure shown in

[0067] does not constitute a limitation on the device, and may include more or fewer components than shown in the figure, or combine some components, or arrange different components. Figure 1 As shown in

[0068] In Figure 1 the device shown, the processor 1001 may be used to call the control program of the fresh air system stored in the memory 1002 and execute the relevant step operations of the control method of the fresh air system in the following embodiments.

[0069] An embodiment of the present invention also provides a control method for a fresh air system, which is applied to the above-mentioned fresh air system.

[0070] Referring to Figure 2 , an embodiment of the control method for the fresh air system of the present application is proposed. In this embodiment, the control method for the fresh air system includes:

[0071] Step S10, controlling a target fresh air machine in the fresh air system to perform a switching action, and obtaining environmental change parameters of each alternative indoor space regulated by the fresh air system before and after the switching action;

[0072] The target fresh air machine is a fresh air machine for an indoor space that is not known to match in the environmental adjustment equipment.

[0073] The switching action includes the target fresh air machine switching from on to off, or the target fresh air machine switching from off to on.

[0074] In this embodiment, the alternative indoor space is an indoor space of a fresh air machine that is not known to match among all indoor spaces regulated by the fresh air system. In other embodiments, the alternative indoor space is any indoor space among all indoor spaces regulated by the fresh air system.

[0075] The environmental change parameters may include at least one of the following: environmental temperature change value, environmental humidity change value, environmental enthalpy change value, environmental pollutant concentration change value, and so on.

[0076] Specifically, the environmental change parameters can be obtained according to the operation mode of the target fresh air machine in the on state corresponding to the switching action. Different modes correspond to obtaining different environmental change parameters.

[0077] In one implementation, the switching action includes switching from on to off. When the target fresh air machine is in the on state, the first environmental parameter value of each alternative indoor space is detected. After the target fresh air machine switches from the on state to the off state, when the target fresh air machine is in the off state, the second environmental parameter value of each alternative indoor space is detected. The environmental change parameters are determined according to the deviation value between the first environmental parameter value and the second environmental parameter value corresponding to each alternative indoor space. Specifically, if the number of target fresh air machines is multiple, then after separately switching one of the target fresh air machines from the on state to the off state, the second environmental parameter value of each alternative indoor space is obtained, and the environmental change parameters are determined according to the deviation value between the first environmental parameter value and the second environmental parameter value corresponding to each alternative indoor space; then after switching the next target fresh air machine from the on state to the off state, the second environmental parameter value of each alternative indoor space is obtained, and the environmental change parameters are determined according to the deviation value between the first environmental parameter value and the second environmental parameter value corresponding to each alternative indoor space; until all the target fresh air machines have switched from the on state to the off state.

[0078] In another implementation, the switch switching action includes switching from off to on. When the target fresh air unit is in the off state, the first environmental parameter values of each alternative indoor space are detected. After the target fresh air unit switches from the off state to the on state, the second environmental parameter values of each alternative indoor space are detected in the on state of the target fresh air unit. The environmental change parameter is determined according to the deviation values between the first environmental parameter values and the second environmental parameter values corresponding to each alternative indoor space. Specifically, if the number of target fresh air units is multiple, after separately switching one of the target fresh air units from the off state to the on state, the second environmental parameter values of each alternative indoor space are obtained, and the environmental change parameter is determined according to the deviation values between the first environmental parameter values and the second environmental parameter values corresponding to each alternative indoor space; then after switching the next target fresh air unit from the off state to the on state, the second environmental parameter values of each alternative indoor space are obtained, and the environmental change parameter is determined according to the deviation values between the first environmental parameter values and the second environmental parameter values corresponding to each alternative indoor space; until all the target fresh air units are switched from the off state to the on state.

[0079] Step S20: Determine whether each of the alternative indoor spaces is the target space matched by the target fresh air unit according to the environmental change parameter.

[0080] The target space matched by the target fresh air unit is specifically the alternative indoor space affected by the target fresh air unit.

[0081] Each alternative indoor space corresponds to a determination result, and the determination result includes that the alternative indoor space is the target space matched by the target fresh air unit; or, the determination result includes that the alternative indoor space is not the target space matched by the target fresh air unit.

[0082] Different environmental change parameters correspond to different determination results.

[0083] In one implementation, the parameter interval where the environmental change parameter is located can be determined. When the environmental change parameter is in the first parameter interval, it is determined that the corresponding alternative indoor space is the target space matched by the target fresh air unit; when the environmental change parameter is in the second parameter interval, it is determined that the corresponding alternative indoor space is not the target space matched by the target fresh air unit.

[0084] In another implementation, the matching degree value can be calculated through the environmental change parameter, and the numerical interval where the matching degree value is located is determined. When the matching degree value is in the first numerical interval, it is determined that the corresponding alternative indoor space is the target space matched by the target fresh air unit; when the matching degree value is in the second numerical interval, it is determined that the corresponding alternative indoor space is not the target space matched by the target fresh air unit.

[0085] A control method for a fresh air system proposed in an embodiment of the present invention. This method controls a target fresh air machine in the fresh air system to perform a switching action, obtains the environmental change parameters of each alternative indoor space adjusted by the fresh air system before and after the switching action, and determines whether each alternative indoor space is a target space matched with the target fresh air machine according to the environmental change parameters. In this process, without manual participation, the matching relationship between the fresh air machine and the indoor space can be obtained through the monitoring of environmental data and data processing and analysis, thereby improving the efficiency and accuracy of the matching between the fresh air machine and the indoor space to ensure the precise control of the indoor environment in different indoor spaces.

[0086] Further, based on the above embodiment, another embodiment of the control method for the fresh air system of the present application is proposed. In this embodiment, referring to Figure 3 , before the step of controlling the target fresh air machine in the fresh air system to perform a switching action, it further includes:

[0087] Step S01, control the target fresh air machine to operate in a target mode, and detect the first environmental parameters of each of the alternative indoor spaces;

[0088] The target mode is a fresh air mode that can cause the environmental parameters (such as temperature and / or humidity and / or pollutant concentration, etc.) of the alternative indoor spaces affected during the process of introducing fresh air from the outside to the inside to change. The target mode can be a pre-set fixed mode or a mode selected according to the actual operating conditions of the environmental adjustment equipment. In this embodiment, the heat pump device of the fresh air machine in the target mode is turned on to reduce or increase the humidity and / or temperature of the fresh air.

[0089] The target mode includes one of the following: cooling mode, heating mode, dehumidification mode, humidification mode.

[0090] In this embodiment, all fresh air machines in the fresh air system operate in the target mode. In other embodiments, the target fresh air machine in the fresh air system operates in the target mode.

[0091] The first environmental parameters include at least one of the following parameters: environmental temperature, environmental humidity, environmental enthalpy value, moisture content, environmental dew point, environmental pollutant concentration, etc.

[0092] Specifically, the first environmental parameters and the subsequent second environmental parameters can be obtained according to the target mode. Different target modes correspond to different first environmental parameters and second environmental parameters.

[0093] The step of controlling the target fresh air machine in the fresh air system to perform a switching action and obtaining the environmental change parameters of each alternative indoor space adjusted by the fresh air system before and after the switching action includes:

[0094] Step S11: Control the target fresh air unit to switch from the on state to the off state, and detect the second environmental parameters of each indoor space.

[0095] The first environmental parameter and the second environmental parameter are of the same type.

[0096] The second environmental parameter includes at least one of the following parameters: environmental temperature, environmental humidity, environmental enthalpy value, moisture content, environmental dew point, environmental pollutant concentration, etc.

[0097] When the shutdown duration of the target fresh air unit is greater than or equal to the set duration, detect the second environmental parameter.

[0098] Step S12: Determine the environmental change parameter according to the deviation value between the first environmental parameter and the second environmental parameter.

[0099] The deviation value is the absolute value of the difference between the first environmental parameter and the second environmental parameter.

[0100] In this embodiment, the deviation value is determined as the environmental change parameter. In other embodiments, the environmental change parameter can also be obtained by correcting the deviation value with a correction value.

[0101] In this embodiment, the target fan first operates in the target mode and then shuts down. The deviation value of the environmental parameters of the alternative indoor spaces in the on and off states of the target mode is detected to determine the environmental change parameter, so as to ensure that the obtained environmental change parameter can accurately reflect the effect of the target fresh air unit on its action space, thereby effectively improving the efficiency and accuracy of the matching between the fresh air unit and the indoor space, and further ensuring the accuracy of the environmental regulation of different indoor spaces.

[0102] Further, in this embodiment, the target module includes a dehumidification mode, the first environmental parameter includes the first dew point temperature, the second environmental parameter includes the second dew point temperature, and the environmental change parameter includes the dew point change value.

[0103] In this embodiment, since the dehumidification mode will cause a significant decrease in the humidity of the indoor environment, based on this, determining whether the indoor space matches the target fresh air unit through the dew point change value is beneficial to further improve the matching accuracy between the fresh air unit and the indoor space.

[0104] Further, based on any of the above embodiments, another embodiment of the control method of the fresh air system of the present application is proposed. In this embodiment, the fresh air system includes at least two fresh air units, the target fresh air unit is one of the at least two fresh air units, and after the step of determining whether each alternative indoor space is the target space matched with the target fresh air unit according to the environmental change parameter, the following steps are further included:

[0105] Determine the unknown fresh air unit among the at least two fresh air units as the new target fresh air unit, return to execute the step of controlling the target fresh air unit in the fresh air system to perform a switch switching action, and obtain the environmental change parameters of each alternative indoor space adjusted by the fresh air system before and after the switch switching action, until there is no unknown fresh air unit or the number of unknown fresh air units is one;

[0106] Wherein, the alternative indoor space is an indoor space where the matching fresh air unit is unknown, and the unknown fresh air unit is the fresh air unit for which the target space is unknown and unmatched.

[0107] After determining the new target fresh air unit, when the shutdown duration of the previous target fresh air unit is greater than or equal to the preset duration, return to execute the step of controlling the target fresh air unit in the fresh air system to perform a switch switching action, and obtain the environmental change parameters of each alternative indoor space adjusted by the fresh air system before and after the switch switching action.

[0108] Wherein, the switch switching actions of all target fresh air units are from on to off. When the target fresh air unit is in the off state, other unknown fresh air units except the target fresh air unit can all be turned on. In other embodiments, the switch switching actions of all target fresh air units are from off to on. When the target fresh air unit is in the on state, other unknown fresh air units except the target fresh air unit can all be turned off.

[0109] For example, in the environmental control device, there are fresh air unit 1, fresh air unit 2, and fresh air unit 3. After fresh air unit 1 determines the target space matched by fresh air unit 1 according to steps S10 to S20, fresh air unit 2 determines the target space matched by fresh air unit 2 according to steps S10 to S20. After obtaining the matching relationship of fresh air unit 2, fresh air unit 3 determines the target space matched by fresh air unit 3 according to steps S10 to S20, so as to obtain the matching relationships of all fresh air units in the environmental control device.

[0110] In this embodiment, through the above method, the matching relationships between all fresh air units and indoor spaces in the environmental control device can be accurately and quickly obtained, further improving the efficiency and accuracy of the matching between the fresh air units and indoor spaces in the environmental control device.

[0111] Further, in this embodiment, after the step of determining whether each of the alternative indoor spaces is the target space matched by the target fresh air unit according to the environmental change parameters, it further includes: when the number of unknown fresh air units is one, determining that all current alternative indoor spaces are the target spaces matched by the unknown fresh air unit.

[0112] Based on this, the data detection and analysis process is reduced, ensuring the matching accuracy between the fresh air unit and the indoor space while improving the matching efficiency.

[0113] Further, in this embodiment, before the step of controlling the target fresh air fan in the fresh air system to perform a switch-over action, the following is also included: controlling all the fresh air fans in the fresh air system to operate in a target mode; the step of controlling the target fresh air fan in the fresh air system to perform a switch-over action includes: controlling the target fresh air fan to switch from the on state to the off state.

[0114] Based on this, during the process of cyclically detecting the target spaces matched by each fresh air fan in the fresh air system, the fresh air fans are turned off one by one, so as to accurately identify the target spaces matched by each fresh air fan.

[0115] In other embodiments, before the step of controlling the target fresh air fan in the fresh air system to perform a switch-over action, all the fresh air fans in the fresh air system can also be controlled to operate in different operating modes. For example, the first fresh air fan operates in a dehumidification mode, the second fresh air fan operates in a heating mode, and so on. Each fresh air fan is taken as the target fresh air fan one by one and the corresponding matched target space is determined in the manner mentioned above.

[0116] Further, in this embodiment, the environmental change parameter of each of the alternative indoor spaces is determined according to the deviation value between the corresponding third environmental parameter and the fourth environmental parameter. The third environmental parameter is the parameter detected after the previous target fresh air fan performs a switch-over action and before the current target fresh air fan performs a switch-over action, and the fourth environmental parameter is the parameter detected after the current target fresh air fan performs a switch-over action.

[0117] In this embodiment, control all the fresh air fans in the fresh air system to operate in a target mode, and detect the first environmental parameter (third environmental parameter) of each of the alternative indoor spaces; control the target fresh air fan to switch from the on state to the off state, and detect the second environmental parameter (fourth environmental parameter) of each of the alternative indoor spaces; determine the environmental change parameter according to the deviation value between the first environmental parameter and the second environmental parameter; take the current second environmental parameter as the new first environmental parameter (that is, the new third environmental parameter), determine the unknown fresh air fan among the at least two fresh air fans as the new target fresh air fan, and return to execute the step of controlling the target fresh air fan to switch from the on state to the off state and detecting the second environmental parameter (fourth environmental parameter) of each of the alternative indoor spaces until there is no unknown fresh air fan or the number of unknown fresh air fans is one.

[0118] In this embodiment, since one fresh air fan may adjust more than one alternative indoor space, obtaining the environmental change parameters required for the matching process of each fresh air fan in the above manner is beneficial to avoiding the error caused by the previous fresh air fan matching process to the subsequent fresh air fan matching process, and is beneficial to further improving the efficiency and accuracy of the matching of multiple fresh air fans and multiple indoor spaces.

[0119] In other embodiments, the environmental change parameter may also be the change value of the environmental parameters between the initial stage and the current moment of the operation target mode of each target fresh air unit.

[0120] Further, based on any of the above embodiments, another embodiment of the control method of the fresh air system of the present application is proposed. In this embodiment, referring to Figure 4 , the step of determining whether each of the alternative indoor spaces is a target space matched with the target fresh air unit according to the environmental change parameter includes:

[0121] Step S21, determining that the alternative indoor space for which the environmental change parameter satisfies the first preset condition is the target space matched with the target fresh air unit;

[0122] Step S22, determining that the alternative indoor space for which the environmental change parameter does not satisfy the first preset condition is an unknown space other than the target space to be adjusted by the target fresh air unit;

[0123] Wherein, the first preset condition includes that the environmental change parameter is greater than the first preset parameter change value.

[0124] The preset change parameter value can be a preset fixed value, or can be determined according to outdoor environmental parameters and / or the operating parameters of the heat pump device in the fresh air unit (compressor frequency and / or opening degree of the electronic expansion valve and / or temperature of the heat exchanger, etc.) and / or the fan speed in the fresh air unit (supply air fan and / or exhaust air fan), etc.

[0125] Wherein, each alternative indoor space can be judged whether it matches the target fresh air unit in the above manner, and the number of target spaces matched with the target fresh air unit obtained can be one or more than one.

[0126] In one implementation manner, the target mode includes a dehumidification mode or a humidification mode, the environmental change parameter includes a dew point change value, when the dew point change value is greater than the first preset value, it is determined that the corresponding alternative indoor space is the target space matched with the target fresh air unit; when the dew point change value is less than or equal to the first preset value, it is determined that the corresponding alternative indoor space is not the target space matched with the target fresh air unit. Or, the environmental change parameter includes an absolute humidity change value, when the absolute humidity change value is greater than the second preset value, it is determined that the corresponding alternative indoor space is the target space matched with the target fresh air unit; when the absolute humidity change value is less than or equal to the second preset value, it is determined that the corresponding alternative indoor space is not the target space matched with the target fresh air unit (that is, an unknown space).

[0127] In another implementation, the target mode includes a refrigeration mode or a heating mode, and the environmental change parameter includes a temperature change value. When the temperature change value is greater than a third preset value, it is determined that the corresponding alternative indoor space is the target space matched by the target fresh air fan; when the temperature change value is less than or equal to the third preset value, it is determined that the corresponding alternative indoor space is not the target space (i.e., an unknown space) matched by the target fresh air fan.

[0128] In this embodiment, starting the target mode of the fresh air fan will cause significant changes in the environmental parameters in the alternative indoor spaces where it acts, but will not affect the alternative indoor spaces where it does not act. Based on this, when the environmental change parameter is greater than the preset parameter change value, it can be considered that the corresponding alternative indoor space is the target space matched by the fresh air fan, otherwise it can be considered that the corresponding alternative indoor space is not the target space matched by the fresh air fan, which is beneficial to improving the matching efficiency between the target fresh air fan and the alternative indoor spaces.

[0129] Further, based on any of the above embodiments, another optional embodiment of the control method of the fresh air system of the present application is proposed. In this embodiment, referring to Figure 5 , before the step of controlling the target fresh air fan in the fresh air system to perform a switch switching action, it further includes:

[0130] Step S02, controlling all fresh air fans in the fresh air system to start the target mode, and obtaining the environmental data of all preset spaces;

[0131] The preset space is a space that can be adjusted by the fresh air system set in advance.

[0132] The environmental data may include environmental temperature, environmental humidity, environmental enthalpy value, environmental moisture content, environmental pollutant concentration, etc.

[0133] The environmental data can be the instantaneous environmental parameter value at a certain moment or the change value of the environmental parameters within a period of time.

[0134] In this embodiment, when the duration of starting the target mode of all fresh air fans is equal to or reaches the target duration, the environmental data here is obtained.

[0135] Step S03, determining the indoor spaces adjusted by the fresh air system in all preset spaces according to the environmental data; the alternative indoor spaces include the indoor spaces or the indoor spaces of the fresh air fans with unknown matching.

[0136] When the environmental data reaches the target interval, it can be determined that the corresponding preset space is the indoor space adjusted by the fresh air system; when the environmental data does not reach the target interval, it can be determined that the corresponding preset space is not the indoor space adjusted by the fresh air system.

[0137] In this embodiment, the environmental data includes initial environmental change parameters, which are specifically the environmental change parameters from the start time of the target mode to the current time. The initial environmental change parameters may include the environmental temperature change value, the environmental humidity change value, the environmental enthalpy change value, the environmental pollutant concentration change value, and so on. The step of determining the indoor spaces in all preset spaces that are regulated by the fresh air system according to the environmental data includes: determining the preset spaces that meet the second preset condition as the indoor spaces regulated by the fresh air system; where the second preset condition includes that the initial environmental change parameters are greater than the second preset parameter change value.

[0138] For example, obtain the initial dew point temperature of the preset space when the fresh air machine starts the target mode. When the running duration of the fresh air machine in the target mode reaches the set duration, detect the third dew point temperature of the preset space, and determine the initial environmental change parameters here according to the temperature difference value between the third dew point temperature and the initial dew point temperature.

[0139] Where, when step S01 as described above is included before step S10, first execute step S02 and step S03 here, and then execute step S01.

[0140] In this embodiment, through the above method, the automatic and accurate identification of the indoor spaces regulated by the fresh air machine can be realized, further reducing the manual participation process, so as to further improve the efficiency and accuracy of the matching between the fresh air machine and the indoor spaces.

[0141] In other embodiments, the indoor spaces regulated by the fresh air machine can also be determined by obtaining the set parameters input by the user.

[0142] Furthermore, based on any of the above embodiments, in this embodiment, the control method of the fresh air system further includes: controlling the target fresh air machine to start the target mode; when the running duration of the target fresh air machine in the target mode reaches the preset duration, obtaining the air outlet parameters of the target fresh air machine; when the air outlet parameters meet the third preset condition for the normal operation of the target fresh air machine, executing the step of controlling the target fresh air machine in the fresh air system to perform a switch-over action and obtaining the environmental change parameters of each alternative indoor space regulated by the fresh air system before and after the switch-over action; when the air outlet parameters do not meet the third preset condition, outputting the fault prompt information of the fresh air machine.

[0143] The preset duration can be a preset fixed duration, or a duration determined according to the outdoor environmental parameters and / or the operating parameters of the heat pump device in the fresh air machine and / or the rotation speed of the fan in the fresh air machine.

[0144] The air outlet parameters are specifically detected by a detection module provided at the fresh air outlet of the target fresh air machine (that is, the fresh air outlet of the indoor space).

[0145] The air outlet parameters may include at least one of the following parameters: air outlet temperature, air outlet humidity, air outlet enthalpy value, air outlet dew point, moisture content of the air outlet, etc.

[0146] Specifically, the air outlet parameters can be obtained according to the target mode, and different target modes correspond to different air outlet parameters. When the target mode includes the dehumidification mode, the air outlet parameters may include air outlet humidity and / or moisture content of the air outlet and / or air outlet dew point and / or air outlet enthalpy value. When the target mode includes the refrigeration mode or the heating mode, the air outlet parameters may include air outlet temperature and / or air outlet enthalpy value, etc.

[0147] The third preset condition is specifically determined according to the target mode, and different target modes correspond to different third preset conditions. The third preset condition includes the target range that the air outlet parameters need to reach when the target fresh air unit operates normally in the target mode, or the target relationship between the air outlet parameters and the target parameters, etc.

[0148] In one implementation manner of this embodiment, the target mode includes the dehumidification mode, the air outlet parameter includes the air outlet dew point temperature, and the third preset condition includes that the air outlet dew point temperature is less than or equal to the preset dew point temperature.

[0149] In another implementation manner of this embodiment, the target mode includes the dehumidification mode, the air outlet parameter includes the moisture content of the supply air, and the third preset condition includes that the difference between the moisture content of the incoming air of the target fresh air unit and the moisture content of the supply air is greater than the preset value.

[0150] In yet another implementation manner of this embodiment, the target mode includes the refrigeration mode, the air outlet parameter includes the air outlet temperature, and the third preset condition includes that the air outlet temperature is less than or equal to the preset temperature. Or, the third preset condition includes that the difference between the air outlet temperature and the fresh air inlet temperature of the target fresh air unit is less than the preset value.

[0151] The fault prompt information can be output in at least one of the following ways: text, image, light, vibration, sound, etc.

[0152] In this embodiment, through the above method, when it is determined that the target fresh air unit is operating normally through the air outlet parameters, the environmental change parameters are further used to determine whether each indoor space is the target space matched with the target fresh air unit; otherwise, a fault prompt is output, which is beneficial to avoiding errors in the matching result or unnecessary determination processes caused by the failure of the target fresh air unit, thereby further improving the accuracy and matching efficiency of the matching between the fresh air unit and the indoor space.

[0153] Further, in this embodiment, before the step of controlling the target fresh air fan in the fresh air system to perform a switch-over action and obtaining the environmental change parameters of each alternative indoor space regulated by the fresh air system before and after the switch-over action, when steps S02 and S03 are further included, after the step of obtaining the air outlet parameters of the target fresh air fan when the operation duration of the target fresh air fan in the target mode reaches the preset duration, first perform steps S02 and S03, and then perform step S01, step S10, and step S20.

[0154] Further, based on any of the above embodiments, in this embodiment, the control method of the fresh air system further includes: obtaining the environmental parameters of the environment where the fresh air system is located; determining the target mode according to the environmental parameters.

[0155] The environmental parameters include indoor environmental parameters and / or outdoor environmental parameters. Different environmental parameters correspond to different target modes.

[0156] Specifically, the target mode can be determined according to the interval where the environmental parameters are located. Or, the target mode can be determined according to the magnitude relationship between the environmental parameters and the preset threshold values.

[0157] In this embodiment, by the above method, it is beneficial to improve the comfort of indoor space users in the process of determining the matching relationship of the target fresh air fan.

[0158] Further, in this embodiment, the environmental parameters include the outdoor temperature and the outdoor humidity, and the step of determining the target mode according to the environmental parameters includes: when the outdoor temperature is greater than the first preset environmental temperature, determining the cooling mode as the target mode; when the outdoor temperature is greater than or equal to the second preset environmental temperature and less than or equal to the first preset environmental temperature, and the outdoor humidity is greater than the preset humidity, determining the dehumidification mode as the target mode; when the outdoor temperature is greater than or equal to the second preset environmental temperature and less than or equal to the first preset environmental temperature, and the outdoor humidity is less than or equal to the preset humidity, determining the humidification mode as the target mode; when the outdoor temperature is less than the second preset environmental temperature, determining the heating mode as the target mode; wherein, the first preset environmental temperature is greater than the second preset environmental temperature.

[0159] In this embodiment, by the above method, it is beneficial to cool when the environmental temperature is too high, heat when the environmental temperature is too low, dehumidify when the temperature is moderate but the environmental humidity is too high, and humidify when the temperature is moderate but the environmental humidity is too low, thereby further improving the comfort of indoor users.

[0160] In addition, an embodiment of the present invention further provides a storage medium, on which a control program for a fresh air system is stored. When the control program for the fresh air system is executed by a processor, the relevant steps of any one of the above-described control methods for the fresh air system are implemented.

[0161] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or system including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or system. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or system including such element.

[0162] The serial numbers of the above embodiments of the present invention are only for description and do not represent the superiority or inferiority of the embodiments.

[0163] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium as described above (such as ROM / RAM, magnetic disk, optical disc), and includes several instructions for causing a terminal device (which can be a mobile phone, computer, server, fresh air system, or network device, etc.) to execute the methods described in various embodiments of the present invention.

[0164] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A control method for a fresh air system, characterized in that, The control method of the fresh air system includes the following steps: Control the target fresh air fan in the fresh air system to perform a switch switching action, and obtain the environmental change parameters of each alternative indoor space regulated by the fresh air system before and after the switch switching action; Determine whether each of the alternative indoor spaces is a target space matched with the target fresh air fan according to the environmental change parameters.

2. The control method of the fresh air system according to claim 1, characterized in that Before the step of controlling the target fresh air fan in the fresh air system to perform a switch switching action, it further includes: Control the target fresh air fan to operate in a target mode, and detect the first environmental parameters of each alternative indoor space; The step of controlling the target fresh air fan in the fresh air system to perform a switch switching action and obtaining the environmental change parameters of each alternative indoor space regulated by the fresh air system before and after the switch switching action includes: Control the target fresh air fan to switch from the on state to the off state, and detect the second environmental parameters of each alternative indoor space; Determine the environmental change parameters according to the deviation value between the first environmental parameter and the second environmental parameter.

3. The control method of the fresh air system according to claim 2, characterized in that, The target module includes a dehumidification mode, the first environmental parameter includes a first dew point temperature, the second environmental parameter includes a second dew point temperature, and the environmental change parameter includes a dew point change value.

4. The control method of the fresh air system according to claim 1, wherein The fresh air system includes at least two fresh air fans, and the target fresh air fan is one of the at least two fresh air fans. After the step of determining whether each of the alternative indoor spaces is a target space matched with the target fresh air fan according to the environmental change parameters, it further includes: Determine the unknown fresh air fan among the at least two fresh air fans as the new target fresh air fan, and return to execute the step of controlling the target fresh air fan in the fresh air system to perform a switch switching action and obtaining the environmental change parameters of each alternative indoor space regulated by the fresh air system before and after the switch switching action until there is no unknown fresh air fan or the number of unknown fresh air fans is one; Wherein, the alternative indoor space is the indoor space of the fresh air fan with unknown matching, and the unknown fresh air fan is the fresh air fan with an unknown matching target space.

5. The control method of the fresh air system according to claim 4, characterized in that, After the step of determining whether each of the alternative indoor spaces is a target space matched with the target fresh air fan according to the environmental change parameters, it further includes: When the number of unknown fresh air fans is one, determine that all current alternative indoor spaces are target spaces matched with the unknown fresh air fan.

6. The control method of the fresh air system according to claim 4, characterized in that, The environmental change parameter of each alternative indoor space is determined according to the deviation value between the corresponding third environmental parameter and the fourth environmental parameter. The third environmental parameter is the parameter detected after the previous target fresh air fan performs a switch switching action, and the fourth environmental parameter is the parameter detected after the current target fresh air fan performs a switch switching action.

7. The control method of the fresh air system according to claim 4, characterized in that, Before the step of controlling the target fresh air fan in the fresh air system to perform a switch switching action, it further includes: Control all fresh air fans in the fresh air system to operate in a target mode; The step of controlling the target fresh air fan in the fresh air system to perform a switch switching action includes: Control the target fresh air fan to switch from on to off state.

8. The control method of the fresh air system according to claim 1, characterized in that, The step of determining whether each of the alternative indoor spaces is a target space matching the target fresh air unit according to the environmental change parameters includes: Determining that the alternative indoor space where the environmental change parameters meet the first preset condition is the target space matching the target fresh air unit; Determining that the alternative indoor space where the environmental change parameters do not meet the first preset condition is an unknown space other than the target space to be adjusted by the target fresh air unit; Wherein, the first preset condition includes that the environmental change parameter is greater than the first preset parameter change value.

9. The control method of the fresh air system according to any one of claims 1 to 8, characterized in that, Before the step of controlling the target fresh air unit in the fresh air system to perform a switching action, it further includes: Controlling all fresh air units in the fresh air system to start the target mode and obtaining the environmental data of all preset spaces; Determining the indoor spaces adjusted by the fresh air system among all preset spaces according to the environmental data, and the alternative indoor spaces include the indoor spaces or the indoor spaces of the fresh air units with unknown matching.

10. The control method of the fresh air system according to claim 9, characterized in that, The environmental data includes initial environmental change parameters, and the step of determining the indoor spaces adjusted by the fresh air system among all preset spaces according to the environmental data includes: Determining that the preset space meeting the second preset condition is the indoor space adjusted by the fresh air system; Wherein, the second preset condition includes that the initial environmental change parameter is greater than the second preset parameter change value.

11. The control method of the fresh air system according to any one of claims 1 to 8, characterized in that, The control method of the fresh air system further includes: Controlling the target fresh air unit to start the target mode; When the duration of the target fresh air unit running in the target mode reaches the preset duration, obtaining the air outlet parameters of the target fresh air unit; When the air outlet parameters meet the third preset condition for the normal operation of the target fresh air unit, performing the step of controlling the target fresh air unit in the fresh air system to perform a switching action and obtaining the environmental change parameters of each alternative indoor space adjusted by the fresh air system before and after the switching action; When the air outlet parameters do not meet the third preset condition, outputting a fault prompt message of the fresh air unit.

12. The control method of the fresh air system according to claim 11, wherein The target mode includes a dehumidification mode; The air outlet parameters include the air outlet dew point temperature, and the third preset condition includes that the air outlet dew point temperature is less than or equal to the preset dew point temperature; or, the air outlet parameters include the moisture content of the supply air, and the third preset condition includes that the difference between the moisture content of the incoming air and the moisture content of the supply air of the fresh air unit is greater than the preset value.

13. The control method of the fresh air system according to any one of claims 2 to 7, characterized in that, The control method of the fresh air system further includes: Obtaining the environmental parameters of the environment where the fresh air system is located; Determining the target mode according to the environmental parameters.

14. A fresh air system, characterized in that, The fresh air system includes a control device and a fresh air unit connected to the control device. The control device includes: a memory, a processor, and a control program of the fresh air system stored on the memory and executable on the processor. When the control program of the fresh air system is executed by the processor, the steps of the control method of the fresh air system according to any one of claims 1 to 13 are implemented.

15. A storage medium, characterized in that, A control program of the fresh air system is stored on the storage medium. When the control program of the fresh air system is executed by the processor, the steps of the control method of the fresh air system according to any one of claims 1 to 13 are implemented.

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