Fresh air adjusting method, fresh air equipment and computer readable storage medium

Abstract

This invention discloses a fresh air conditioning method, a fresh air device, and a computer-readable storage medium. The method includes the following steps: after the fresh air system starts any initial fresh air mode, dynamically acquiring the indoor air quality parameters of the room where the fresh air system is applied; determining whether the air quality parameters are greater than a corresponding first air quality threshold; if the air quality parameters are less than or equal to the preset first air quality threshold, detecting whether the exhaust fan is turned on; if the exhaust fan of the fresh air system is turned on, adjusting the fresh air volume and exhaust air volume of the fresh air system in a correlated manner to achieve indoor air pressure equilibrium. By applying the fresh air conditioning method of this invention to fresh air systems and fresh air devices, indoor air conditioning can be maintained in a state of air pressure equilibrium, ensuring user comfort.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a fresh air conditioning method, a fresh air device, and a computer-readable storage medium. Background Technology

[0002] A fresh air system is an independent air handling system that includes a supply air system. It can also be used in conjunction with an air conditioner to form a complex air conditioning system that combines temperature regulation and fresh air regulation. Its main function is to regulate indoor air quality by introducing fresh air into the room, performing filtration and other purification operations, and removing stale indoor air, thereby ensuring clean and pollution-free indoor air and guaranteeing the user's quality of life and respiratory health.

[0003] However, with current fresh air systems, since rooms are enclosed spaces, the air pressure in a room cannot be kept balanced when both a fresh air unit and an exhaust fan (often installed in the bathroom) are present during the ventilation process, resulting in an uncomfortable fresh air experience for users. Summary of the Invention

[0004] The main objective of this invention is to provide a fresh air conditioning method, a fresh air device, and a computer-readable storage medium, aiming to solve the technical problem of how to regulate the indoor air environment to ensure indoor air pressure balance.

[0005] To achieve the above objectives, the present invention provides a fresh air conditioning method, which is applied to a fresh air system; the fresh air system includes an exhaust fan; the fresh air conditioning method includes the following steps:

[0006] After the fresh air system starts any initial fresh air mode, the indoor air quality parameters of the fresh air system are dynamically acquired.

[0007] Determine whether the air quality parameter is greater than the corresponding first air quality threshold;

[0008] If the air quality parameter is less than or equal to a preset first air quality threshold, then it is detected whether the exhaust fan is turned on.

[0009] If the exhaust fan of the fresh air system is turned on, the fresh air volume and exhaust volume of the fresh air system are adjusted accordingly to balance the indoor air pressure.

[0010] Optionally, before the step of determining whether the air quality parameter is greater than the corresponding first air quality threshold, the method includes:

[0011] Determine whether the air quality parameter is greater than the corresponding second air quality threshold, wherein the second air quality threshold is less than the first air quality threshold;

[0012] If the air quality parameter is greater than the corresponding second air quality threshold, then the step of determining whether the air quality parameter is greater than the corresponding first air quality threshold is performed.

[0013] Optionally, after the step of determining whether the air quality parameter is greater than the corresponding first air quality threshold, the method further includes:

[0014] If the air quality parameter is greater than the corresponding first air quality threshold, the fresh air system is adjusted to the preset strong wind mode, and it is determined whether the exhaust fan is turned on.

[0015] If the exhaust fan is turned on, the fresh air volume of the fresh air system is increased to the preset air volume in the strong wind mode.

[0016] Optionally, after the step of increasing the fresh air volume of the fresh air system to a preset air volume in the strong wind mode, the method further includes:

[0017] Determine whether the air quality parameter is greater than or equal to the second air quality threshold and less than or equal to the first air quality threshold;

[0018] If the air quality parameter is greater than or equal to the second air quality threshold and less than or equal to the first air quality threshold, then the strong wind mode is switched back to the initial fresh air mode.

[0019] Perform the step of detecting whether the exhaust fan is turned on.

[0020] Optionally, after the step of determining whether the exhaust fan is turned on, the method further includes:

[0021] If the exhaust fan is not turned on, then the exhaust fan is turned on, and the step of determining whether the exhaust fan is turned on is repeated until it is determined that the exhaust fan is turned on or the process is repeated for a preset number of cycles.

[0022] Optionally, the fresh air system includes a fresh air unit; the step of adjusting the fresh air volume and exhaust air volume of the fresh air system to achieve indoor air pressure balance includes:

[0023] Reduce the exhaust volume of the exhaust fan and increase the fresh air volume of the fresh air unit until the indoor air pressure is balanced.

[0024] Optionally, the step of reducing the exhaust volume corresponding to the exhaust fan and increasing the fresh air volume corresponding to the fresh air unit to achieve indoor air pressure balance includes:

[0025] Reduce the wind speed of the exhaust fan to reduce the exhaust volume of the exhaust fan, and increase the operating power of the fresh air unit to increase the fresh air volume of the fresh air unit.

[0026] Optionally, the step of reducing the exhaust volume corresponding to the exhaust fan further includes:

[0027] The duty cycle of the exhaust fan is determined based on the air quality parameters.

[0028] The start and stop of the exhaust fan are controlled according to the duty cycle.

[0029] In addition, to achieve the above objectives, the present invention also provides a fresh air device, including a processor, a memory, and a fresh air conditioning program stored in the memory that can be executed by the processor, wherein when the fresh air conditioning program is executed by the processor, it implements the steps of the fresh air conditioning method as described above.

[0030] The present invention also provides a computer-readable storage medium storing a fresh air conditioning program, wherein when the fresh air conditioning program is executed by a processor, it implements the steps of the fresh air conditioning method described above.

[0031] The fresh air regulation method in this invention dynamically acquires indoor air quality parameters after the fresh air system is activated in any initial fresh air mode. This allows for real-time detection of indoor air quality regardless of how the user activates the system, facilitating adjustments to air quality. Furthermore, by determining whether the air quality parameters exceed a first air quality threshold and by detecting whether the exhaust fan is on if the parameters are less than or equal to the first threshold, the exhaust fan is integrated with the fresh air system. This enables detection of exhaust fan operation even in cases of severe indoor air pollution, allowing for dynamic adjustment of indoor air intake and exhaust volumes. Finally, by adjusting the fresh air volume and exhaust volume of the fresh air system to achieve indoor pressure equilibrium if the exhaust fan is on, the method simultaneously regulates both fresh air volume and exhaust volume, ensuring user comfort. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the terminal structure of the hardware operating environment of the fresh air equipment involved in the embodiments of the present invention;

[0033] Figure 2 This is a flowchart illustrating the first embodiment of the fresh air conditioning method of the present invention;

[0034] Figure 3 This is a flowchart illustrating the second embodiment of the fresh air conditioning method of the present invention;

[0035] Figure 4 This is a schematic diagram of the overall process of the fresh air conditioning method of the present invention;

[0036] Figure 5 This is a schematic diagram of the operation and control structure of the fresh air system involved in the fresh air conditioning method of the present invention.

[0037] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0039] Overview of the technical solution of this invention:

[0040] The fresh air unit and exhaust fan are linked and controlled as part of the fresh air system. After the user turns on the fresh air system and selects its fresh air mode, the current air quality is first assessed. Based on the air quality, the fresh air system's adjustment of indoor air can be divided into two scenarios:

[0041] 1. When the air quality does not exceed the minimum level that would affect human health, the fresh air system operates normally. Users start the fresh air mode of the fresh air system and adjust the fresh air volume and exhaust volume of the fresh air system by switching on and off the exhaust fan in the fresh air system, thereby ensuring the air pressure in the room is balanced.

[0042] 2. When the air quality exceeds the minimum level that could affect human health, the fresh air system will automatically switch the current fresh air mode to a strong wind mode. This strong wind mode can quickly increase the amount of fresh air in the room and ensure that the exhaust fan is turned on. When the amount of fresh air provided by the fresh air system reaches the predetermined amount, it will determine whether to continue to increase the amount of fresh air based on the current air quality. If the current air quality will not affect human health, the fresh air system will switch back to the original fresh air mode.

[0043] This invention provides a fresh air system. The fresh air system can include any type of fresh air system, such as a ceiling-mounted total heat exchange fresh air unit, a two-way flow fresh air unit, a one-way flow fresh air unit, a floor-standing fresh air unit, or a wall-mounted fresh air unit; no limitation is made herein.

[0044] like Figure 1 As shown, Figure 1 This is a schematic diagram of the hardware operating environment of the fresh air equipment involved in the embodiments of the present invention.

[0045] like Figure 1As shown, the fresh air device may include: a processor 1001, such as a CPU; a network interface 1004; a user interface 1003; a memory 1005; and a communication bus 1002. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display or an input unit such as a control panel; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface). The memory 1005 may be a high-speed RAM or a stable, non-volatile memory, such as a disk drive. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001. The memory 1005, as a computer storage medium, may include a fresh air conditioning program.

[0046] Those skilled in the art will understand that Figure 1 The hardware structure shown does not constitute a limitation on the device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0047] Continue to refer to Figure 1 , Figure 1 The memory 1005, which is a computer-readable storage medium, may include an operating system, a user interface module, a network communication module, and a fresh air conditioning program.

[0048] exist Figure 1 In this embodiment, the network communication module is mainly used to connect to the server and communicate with the server for data; while the processor 1001 can call the fresh air conditioning program stored in the memory 1005 and execute the steps in the following embodiments.

[0049] Based on the hardware structure of the controller described above, various embodiments of the fresh air conditioning method of the present invention are proposed.

[0050] This invention provides a method for regulating fresh air.

[0051] Please refer to Figure 2 , Figure 2 This is a flowchart illustrating the first embodiment of the fresh air conditioning method of the present invention; in the first embodiment of the present invention, the fresh air conditioning method includes the following steps:

[0052] Step S10: After the fresh air system starts any initial fresh air mode, dynamically acquire the indoor air quality parameters of the fresh air system application.

[0053] In this embodiment, the fresh air system includes a fresh air unit and an exhaust fan.

[0054] After the user turns on the fresh air system, they can choose various fresh air modes according to their preferences, namely the initial fresh air mode. The initial fresh air mode includes, but is not limited to, automatic mode, manual mode, sleep mode, cooling mode, dehumidification mode, etc.

[0055] Regardless of which specific fresh air mode the user activates, the fresh air system will monitor the indoor air quality parameters in real time. These air quality parameters include any one of the following: carbon dioxide concentration, suspended particulate matter concentration, and volatile organic compound concentration. Suspended particulate matter concentration includes, but is not limited to, PM2.5, PM10, dust, and smoke. Volatile organic compounds include, but are not limited to, formaldehyde, benzene, chlorinated organic compounds, and sulfur-containing organic compounds.

[0056] It should be noted that the air quality parameters here can be uniformly expressed in PPM, percentage, or the amount of pollutants per unit volume.

[0057] Step S20: Determine whether the air quality parameter is greater than the corresponding first air quality threshold.

[0058] Depending on the pollutants corresponding to the air quality parameters, the corresponding first air quality threshold will also be different. This first air quality threshold can be understood as the minimum level that will affect human health, as mentioned above. For example, when the concentration of carbon dioxide reaches 1% (1000 PPM), users will experience stuffiness, difficulty concentrating, and other health problems. In this case, the air quality parameter is the concentration of carbon dioxide, and the corresponding first air quality threshold is 1%. Another example is the national standard for formaldehyde concentration in volatile organic compounds, which is 0.1 mg / m³. 3 When the concentration exceeds this level, it will begin to affect human health. At this point, the air quality parameter is the formaldehyde concentration, and the corresponding first air quality threshold is 0.1 mg / m³. 3 For example, the dust concentration in suspended particulate matter is greater than 10 mg / m³. 3 At this time, users may experience difficulty breathing, which can negatively impact their health. In this case, the air quality parameter is dust concentration, and the corresponding first air quality threshold is 10 mg / m³. 3 .

[0059] In one embodiment, prior to step S20, the following steps are included:

[0060] Step a: Determine whether the air quality parameter is greater than the corresponding second air quality threshold, wherein the second air quality threshold is less than the first air quality threshold;

[0061] Step b: If the air quality parameter is greater than the corresponding second air quality threshold, then the step of determining whether the air quality parameter is greater than the corresponding first air quality threshold is executed.

[0062] It should be noted that the second air quality threshold here is not only less than the first air quality threshold, but its relationship with the first air quality threshold can also be a proportional value of 1 / 2 or 3 / 4 of the first air quality threshold. The purpose is to adjust the indoor air quality before it reaches the first air quality threshold. More specifically, after determining whether the air quality parameter is greater than the corresponding second air quality threshold, the process also includes:

[0063] If the air quality parameter is greater than the corresponding second air quality threshold, the current operating condition parameter of the fresh air system is obtained, and the corresponding target operating condition parameter is determined according to the air quality parameter, and the current operating condition parameter is switched to the target operating condition parameter.

[0064] In addition, if the air quality parameter is less than or equal to the corresponding second air quality threshold, the current operating parameters of the fresh air system are maintained.

[0065] Through the above embodiment, the operating conditions of the fresh air system can be adjusted in time before indoor air quality affects the user's health, thereby minimizing the impact on the user's health caused by indoor air quality reaching the first air quality threshold. Furthermore, compared to the need to increase the overall power of the fresh air system to provide more fresh air when the air quality reaches the first air quality threshold, it is more energy-efficient and low-carbon.

[0066] Step S30: If the air quality parameter is less than or equal to a preset first air quality threshold, then detect whether the exhaust fan is turned on.

[0067] If the air quality parameter is less than or equal to the preset first air quality threshold, it indicates that the current air quality is good and generally will not affect the user. The fresh air system can continue to operate in the original fresh air mode and detect the operating status of the exhaust fan of the fresh air system, that is, determine whether the exhaust fan is running or in the off state. It should be noted that the exhaust fan in this embodiment can be manually controlled by the user to turn on or off, or its on or off state can be determined according to different fresh air modes.

[0068] To detect whether an exhaust fan is on or off, the fresh air system must first include a corresponding exhaust fan status detection device. Possible detection methods include:

[0069] 1. Determine whether the exhaust fan is turned on by detecting the current current value or the current voltage value of the exhaust fan; specifically, determine whether the current current value is greater than or equal to a preset current threshold; if the current current value is greater than or equal to the preset current threshold, then determine that the exhaust fan is turned on; similarly, the current voltage value is determined in the same way.

[0070] 2. Determine whether the exhaust fan is turned on by detecting the current speed of the exhaust fan; specifically, determine whether the current speed is greater than or equal to a preset speed threshold. If the current speed is greater than or equal to the preset speed threshold, then determine that the exhaust fan is turned on. It should be noted that the preset speed threshold here can be 0 or not 0, because considering the influence of external or indoor air flow on the exhaust fan's blowing, in some cases the preset speed threshold is a positive number that is not 0.

[0071] 3. Determine whether the exhaust fan is turned on by detecting the change in indoor air pressure within a preset period; specifically, determine whether the change in air pressure is less than or equal to a preset air pressure threshold. If the change in air pressure is less than or equal to the preset air pressure threshold, then determine that the exhaust fan is turned on.

[0072] Step S40: If the exhaust fan of the fresh air system is turned on, the fresh air volume and exhaust volume of the fresh air system are adjusted to balance the indoor air pressure.

[0073] When the exhaust fan is on, the indoor air pressure is often lower than the normal indoor air pressure when exhaust is not running, which can make users feel uncomfortable. Therefore, it is necessary to increase the indoor fresh air volume and reduce the exhaust volume. This not only maintains indoor air pressure balance but also provides more fresh air to meet users' comfort needs. It should be noted that indoor air pressure balance here refers to achieving normal indoor air pressure (standard air pressure) or achieving a preset airflow rate (the amount of air flowing through the room per unit time). The preset airflow rate can be set according to actual needs, but the goal is to ensure that the fresh air input from the fresh air system and the exhaust air output from the exhaust fan provide users with a comfortable breathing and physical experience indoors.

[0074] In one embodiment, to achieve coordinated control of the fresh air unit and the exhaust fan at the hardware level, it is possible to refer to... Figure 5 , Figure 5 This is a schematic diagram of the operation and control structure of the fresh air system involved in the fresh air conditioning method of the present invention. Figure 5 As shown, the fresh air system includes:

[0075] Exhaust fan 301: A device installed indoors for exhausting air from indoors to outdoors;

[0076] Double-control switch 302: Installed near the indoor exhaust fan, this high-voltage switch is used for manually turning the exhaust fan on and off. It has a double-control function, and each time it is turned on, it can only be connected to the neutral wire or the live wire.

[0077] Exhaust fan status detection device 303: A detection device that can continuously detect whether the exhaust fan is in a working or closed state. This detection can be to detect the current of the exhaust fan, the speed of the exhaust fan, or the air pressure change in the room where the exhaust fan is located, etc.

[0078] Main unit control switch 304 (including 304A and 304B): a high-voltage switch built into the fresh air unit of the fresh air system. It controls the opening and closing of the fresh air unit through control signal 1 and control signal 2 output by the main unit controller 305. Only one of 304A and 304B can be turned on at a time, and they cannot be turned on at the same time. Optionally, the main unit control switch 304 can be a single-pole double-throw switch, with one normally closed and one normally open switch.

[0079] Main controller 305: A controller module installed inside the fresh air unit, which has a control module for processing signals from the exhaust fan 301 status detection device and controlling the main control switch 304; the main controller 305 is electrically connected to the main control switch 304, the exhaust fan status detection device 303 and the air quality status detection sensor 306 respectively.

[0080] Air quality status sensor 306: Used to detect air quality parameters such as CO2 concentration, PM2.5 concentration, odor concentration, and volatile organic compound concentration in the room.

[0081] The fresh air regulation method in this invention dynamically acquires indoor air quality parameters after the fresh air system is activated in any initial fresh air mode. This allows for real-time detection of indoor air quality regardless of how the user activates the system, facilitating adjustments to air quality. Furthermore, by determining whether the air quality parameters exceed a first air quality threshold and by detecting whether the exhaust fan is on if the parameters are less than or equal to the first threshold, the exhaust fan is integrated with the fresh air system. This enables detection of exhaust fan operation even in cases of severe indoor air pollution, allowing for dynamic adjustment of indoor air intake and exhaust volumes. Finally, by adjusting the fresh air volume and exhaust volume of the fresh air system to achieve indoor pressure equilibrium if the exhaust fan is on, the method simultaneously regulates both fresh air volume and exhaust volume, ensuring user comfort.

[0082] Please refer to Figure 3 , Figure 3This is a flowchart illustrating a second embodiment of the fresh air conditioning method of the present invention. Further, based on the first embodiment of the fresh air conditioning method of the present invention, a second embodiment of the fresh air conditioning method of the present invention is proposed. In this embodiment, after step S20, the fresh air conditioning method further includes:

[0083] Step S21: If the air quality parameter is greater than the corresponding first air quality threshold, the fresh air system is adjusted to the preset strong wind mode, and it is determined whether the exhaust fan is turned on.

[0084] Step S22: If the exhaust fan is turned on, the fresh air volume of the fresh air system is increased to the preset air volume in the strong wind mode.

[0085] In this embodiment, if the air quality parameter exceeds its corresponding first air quality threshold, it indicates that the indoor air quality is poor and will adversely affect the user's health. To quickly and promptly purify the indoor air, the initial fresh air mode set or selected by the user needs to be switched to a strong wind mode to achieve powerful fresh air exchange. Simultaneously, the on / off status of the exhaust fan can be determined. It should be noted that this strong wind mode provides more fresh air volume and a higher intake air velocity than some conventional automatic or sleep modes.

[0086] If the exhaust fan is already on, the fresh air volume provided by the fresh air unit of the fresh air system will be increased efficiently in the strong wind mode until the fresh air volume reaches the preset strong wind air volume (preset air volume). The preset strong wind air volume can also be set according to actual needs, or it can be 1.5 times, 2 times or other multiples of the initial fresh air volume corresponding to the initial fresh air mode.

[0087] In some embodiments, after the step of increasing the fresh air volume of the fresh air system to a preset air volume in the strong wind mode, the fresh air adjustment method further includes:

[0088] Step S23: Determine whether the air quality parameter is greater than or equal to the second air quality threshold and less than or equal to the first air quality threshold;

[0089] Step S24: If the air quality parameter is greater than or equal to the second air quality threshold and less than or equal to the first air quality threshold, then switch the strong wind mode back to the initial fresh air mode; execute the step of detecting whether the exhaust fan is turned on in step S30.

[0090] Specifically, during the process of rapidly replenishing indoor air in strong wind mode, the fresh air system determines whether the air quality parameter is greater than or equal to the second air quality threshold and less than or equal to the first air quality threshold. In other words, it determines whether the air quality parameter is within the closed interval formed by the first and second air quality thresholds. For example, let the second air quality threshold be x, the first air quality threshold be 2x, and the air quality parameter be A. Then, it determines whether x ≤ A ≤ 2x holds true.

[0091] If the above conditions are met, it means that the indoor air will no longer affect the human body, and the strong wind mode can be switched back to the initial fresh air mode to avoid energy waste and save costs.

[0092] Returning to step S30 above, which involves detecting whether the exhaust fan is on, if the exhaust fan is detected as on, the fresh air volume and exhaust volume of the fresh air system are adjusted accordingly to achieve indoor air pressure equilibrium. If the exhaust fan is detected as off, the operating parameters of the fresh air system corresponding to the initial fresh air mode are maintained.

[0093] In one embodiment, after determining whether the exhaust fan is turned on in step S21, the fresh air adjustment method further includes:

[0094] Step c: If the exhaust fan is not turned on, then turn on the exhaust fan and repeat the step of determining whether the exhaust fan is turned on until it is determined that the exhaust fan is turned on or repeat the process for a preset number of cycles.

[0095] In this embodiment, if the exhaust fan is not turned on, an attempt is made to start it until it is successfully turned on or the step of determining whether the exhaust fan is turned on is repeated until a preset number of cycles is reached, such as 3. The preset number of cycles is not limited here. It should be noted that during the process of starting the exhaust fan, some malfunctions may cause it to fail to start, requiring repeated attempts. However, this process should only stop when the exhaust fan is successfully turned on or the number of cycles exceeds the limit. This reduces the impact of malfunctions on the exhaust fan's operation, increases the probability of successful start-up, and avoids equipment damage and energy waste caused by continuous cycling.

[0096] The solution of switching the fresh air system to strong wind mode in the second embodiment described above can efficiently and promptly purify indoor air, ensuring balanced indoor air pressure while obtaining fresh air, thus greatly satisfying users' actual needs for comfort and respiratory health.

[0097] Furthermore, based on the above embodiments of the fresh air conditioning method of the present invention, a third embodiment of the fresh air conditioning method of the present invention is proposed. In this embodiment, the fresh air system includes a fresh air unit; the step S40 of adjusting the fresh air volume and exhaust air volume of the fresh air system to achieve indoor air pressure balance includes:

[0098] Step d: Reduce the exhaust volume of the exhaust fan and increase the fresh air volume of the fresh air unit until the indoor air pressure is balanced.

[0099] In this embodiment, the fresh air volume refers to the fresh air volume corresponding to the fresh air unit, that is, the fresh air volume provided by the fresh air unit. More specifically, the fresh air volume here can be the net fresh air volume obtained by subtracting the air volume exiting the room from the air volume entering the room by the air volume entering the room by the air volume exiting ...

[0100] The process of adjusting the fresh air unit and exhaust fan, as well as the fresh air volume and exhaust volume, as described above continues until the indoor air pressure is balanced, i.e., the indoor standard air pressure or preset flow rate is reached. Then, the exhaust fan and fresh air unit can be restored to the operating parameters corresponding to the initial fresh air mode.

[0101] In one embodiment, step d, which involves reducing the exhaust volume of the exhaust fan and increasing the fresh air volume of the fresh air unit to achieve indoor air pressure balance, specifically includes:

[0102] Step e: Reduce the wind speed of the exhaust fan to reduce the exhaust volume of the exhaust fan, and increase the operating power of the fresh air unit to increase the fresh air volume of the fresh air unit.

[0103] The amount of indoor air exhausted by the exhaust fan can be reduced by lowering its speed or setting its damper, or by reducing its power output. Simultaneously, the fresh air intake fan's power needs to be increased to improve the fresh air volume. Specifically, this can be achieved by increasing the power of the fresh air intake fan and decreasing the power of the exhaust fan. By controlling the fresh air intake fan and exhaust fan in a coordinated manner, indoor air pressure balance can be ensured, improving user comfort.

[0104] In another embodiment, the step of reducing the exhaust volume corresponding to the exhaust fan further includes:

[0105] Step f: Determine the duty cycle of the exhaust fan based on the air quality parameters;

[0106] Step g: Control the start and stop of the exhaust fan according to the duty cycle.

[0107] Different pollutants correspond to different air quality parameters, and consequently, different duty cycles. If only one air quality parameter has a health impact on humans (greater than its corresponding first air quality threshold), the duty cycle for the exhaust fan can be efficiently determined directly by querying a pre-defined mapping table based on that air quality parameter. If multiple air quality parameters are greater than their corresponding first air quality thresholds, the duty cycle for each air quality parameter can be determined, and then the average value can be taken as the duty cycle for the exhaust fan.

[0108] For example, when the air quality parameter is carbon dioxide concentration, specifically 0.9%, the corresponding duty cycle can be 80%, meaning the exhaust fan runs for 80% of the preset cycle. When the carbon dioxide concentration is 0.5%, the corresponding duty cycle can be 60%. This shows a positive correlation between the duty cycle and the air quality parameter. After determining the duty cycle for the exhaust fan, its start and stop are adjusted accordingly.

[0109] Through the third embodiment described above, the linkage control of the fresh air unit and the exhaust fan can be achieved in a variety of specific ways, which not only ensures that there is sufficient fresh air indoors, but also ensures that the indoor air pressure is always balanced, improves user comfort, and is beneficial to the user's physical and mental health.

[0110] The above embodiments can be combined to form the overall technical solution of the present invention. For a clearer understanding of the present invention, please refer to... Figure 4 , Figure 4 This is a schematic diagram of the overall process of the fresh air conditioning method of the present invention.

[0111] Initially, after the user turns on the fresh air system and activates the corresponding initial fresh air mode, it checks whether the air quality parameter is greater than the second air quality threshold x. If the air quality parameter is not greater than the second air quality threshold x, the original initial fresh air mode is maintained. If the air quality parameter is greater than the second air quality threshold x, it continues to check whether the air quality parameter is greater than the first air quality threshold y, where y > x. If the air quality parameter is not greater than the first air quality threshold y, it proceeds to the first branch: maintaining the initial fresh air mode, and then checks whether the exhaust fan is turned on. If the exhaust fan is not turned on, the original operating parameters of the fresh air unit are maintained. If the exhaust fan is turned on, the fresh air volume is increased and the exhaust volume is decreased to ensure indoor air pressure balance.

[0112] The system checks if the air quality parameter is greater than the first air quality threshold y. If the air quality parameter is greater than the first air quality threshold y, it proceeds to the second branch: the initial fresh air mode is switched to the strong wind mode, and then the exhaust fan is turned on. The system checks if the exhaust fan is turned on successfully. If the exhaust fan is not turned on successfully, it tries to turn on the fan repeatedly. If the exhaust fan is turned on successfully, the fresh air volume of the fresh air unit is increased to the preset air volume. Then it checks if x ≤ air quality parameter ≤ y. If the condition is met, it continues to operate in the strong wind mode. If the condition is not met, it switches back to the initial fresh air mode, returns to the first branch, and continues to execute the following process.

[0113] Furthermore, the present invention also provides a computer-readable storage medium. The computer-readable storage medium of the present invention stores a fresh air conditioning program, wherein, when executed by a processor, the fresh air conditioning program implements the steps of the fresh air conditioning method described above.

[0114] The method implemented when the fresh air conditioning program is executed can be referred to in various embodiments of the fresh air conditioning method of the present invention, and will not be repeated here.

[0115] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0116] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0117] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0118] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0119] It should be noted that any reference signs placed between parentheses in the claims should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0120] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0121] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A method for regulating fresh air, characterized in that, The fresh air conditioning method is applied to a fresh air system; the fresh air system includes an exhaust fan and a fresh air unit; the fresh air conditioning method includes the following steps: After the fresh air system starts any initial fresh air mode, the indoor air quality parameters of the fresh air system are dynamically acquired. Determine whether the air quality parameter is greater than the corresponding first air quality threshold; If the air quality parameter is less than or equal to a preset first air quality threshold, then it is detected whether the exhaust fan is turned on. If the exhaust fan of the fresh air system is turned on, the fresh air volume and exhaust air volume of the fresh air system will be adjusted accordingly to balance the indoor air pressure. The step of adjusting the fresh air volume and exhaust air volume of the fresh air system to achieve indoor air pressure balance includes: Reduce the exhaust volume of the exhaust fan and increase the fresh air volume of the fresh air unit until the indoor air pressure is balanced; The method further includes, after the step of determining whether the air quality parameter is greater than the corresponding first air quality threshold: If the air quality parameter is greater than the corresponding first air quality threshold, the fresh air system is adjusted to the preset strong wind mode, and it is determined whether the exhaust fan is turned on. If the exhaust fan is turned on, the fresh air volume of the fresh air system is increased to the preset air volume in the strong wind mode.

2. The fresh air conditioning method as described in claim 1, characterized in that, Before the step of determining whether the air quality parameter is greater than the corresponding first air quality threshold, the following steps are included: Determine whether the air quality parameter is greater than the corresponding second air quality threshold, wherein the second air quality threshold is less than the first air quality threshold; If the air quality parameter is greater than the corresponding second air quality threshold, then the step of determining whether the air quality parameter is greater than the corresponding first air quality threshold is performed.

3. The fresh air conditioning method as described in claim 2, characterized in that, After the step of increasing the fresh air volume of the fresh air system to the preset air volume in the strong wind mode, the method further includes: Determine whether the air quality parameter is greater than or equal to the second air quality threshold and less than or equal to the first air quality threshold; If the air quality parameter is greater than or equal to the second air quality threshold and less than or equal to the first air quality threshold, then the strong wind mode is switched back to the initial fresh air mode. Perform the step of detecting whether the exhaust fan is turned on.

4. The fresh air conditioning method as described in claim 1, characterized in that, After the step of determining whether the exhaust fan is turned on, the method further includes: If the exhaust fan is not turned on, then the exhaust fan is turned on, and the step of determining whether the exhaust fan is turned on is repeated until it is determined that the exhaust fan is turned on or the process is repeated for a preset number of cycles.

5. The fresh air conditioning method as described in claim 1, characterized in that, The step of reducing the exhaust volume of the exhaust fan and increasing the fresh air volume of the fresh air unit to achieve indoor air pressure balance includes: Reduce the wind speed of the exhaust fan to reduce the exhaust volume of the exhaust fan, and increase the operating power of the fresh air unit to increase the fresh air volume of the fresh air unit.

6. The fresh air conditioning method as described in claim 1, characterized in that, The step of reducing the exhaust volume corresponding to the exhaust fan further includes: The duty cycle of the exhaust fan is determined based on the air quality parameters. The start and stop of the exhaust fan are controlled according to the duty cycle.

7. A fresh air device, characterized in that, The fresh air device includes a processor, a memory, and a fresh air conditioning program stored in the memory that can be executed by the processor, wherein when the fresh air conditioning program is executed by the processor, it implements the steps of the fresh air conditioning method as described in any one of claims 1 to 6.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a fresh air conditioning program, wherein when the fresh air conditioning program is executed by a processor, it implements the steps of the fresh air conditioning method as described in any one of claims 1 to 6.

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