Fresh air control method and device, fresh air conditioner and computer readable storage medium

Abstract

The embodiment of the invention provides a fresh air control method and device, a fresh air conditioner and a computer readable storage medium, the fresh air conditioner comprises a fresh air module, the fresh air module comprises a fresh air fan, and the fresh air control method comprises the steps that whether a fresh air starting condition is met or not is determined; in response to the determination that the fresh air starting condition is met, the fresh air fan is controlled to be started; according to the volume flow of the fresh air fan, the indoor space volume, the outdoor air quality and the indoor air quality, the indoor air quality standard reaching time is predicted; and operating parameters of the fresh air fan are adjusted according to the indoor air quality standard reaching time.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and in particular to a fresh air control method, device, fresh air air conditioner and computer-readable storage medium. Background Art

[0002] A fresh air air conditioner is an air conditioner with a fresh air function, which can draw fresh air from outside into the room to improve the indoor air quality. In the related art, the control method of the fresh air air conditioner is relatively simple and cannot achieve a good fresh air control effect. Summary of the invention

[0003] The embodiments of the present application provide a fresh air control method, device, fresh air air conditioner and computer-readable storage medium, which can better achieve the fresh air control effect and improve the indoor air quality relatively quickly.

[0004] In a first aspect, an embodiment of the present application provides a fresh air control method for controlling a fresh air air conditioner, wherein the fresh air air conditioner includes a fresh air module, and the fresh air module includes a fresh air fan. The fresh air control method includes: determining whether the fresh air start-up conditions are met; in response to determining that the fresh air start-up conditions are met, controlling the fresh air fan to start; predicting the time it takes for indoor air quality to reach a standard based on the volume flow rate of the fresh air fan, the volume of the indoor space, the outdoor air quality, and the indoor air quality; and adjusting the operating parameters of the fresh air fan based on the time it takes for the indoor air quality to reach a standard.

[0005] In some embodiments, adjusting the operating parameters of the fresh air fan according to the indoor air quality standard-reaching time includes: determining the standard-reaching time interval in which the indoor air quality standard-reaching time is located; in response to determining that the indoor air quality standard-reaching time is within the first standard-reaching time interval, controlling the rotation speed of the fresh air fan to accelerate at a first preset acceleration amount every preset time interval; in response to determining that the indoor air quality standard-reaching time is within the second standard-reaching time interval, controlling the rotation speed of the fresh air fan to accelerate at a second preset acceleration amount every preset time interval; in response to determining that the indoor air quality standard-reaching time is within the third standard-reaching time interval, controlling the rotation speed of the fresh air fan to accelerate at a third preset acceleration amount every preset time interval; the first standard-reaching time interval is a standard-reaching time interval greater than a first standard-reaching time threshold, the second standard-reaching time interval is a standard-reaching time interval less than or equal to the first standard-reaching time threshold and greater than the second standard-reaching time threshold, and the third standard-reaching time is a standard-reaching time interval less than or equal to the second standard-reaching time threshold; the first preset acceleration amount is greater than the second preset acceleration amount, the second preset acceleration amount is greater than the third preset acceleration amount, and the third preset acceleration amount is greater than or equal to zero.

[0006] In some embodiments, determining whether the fresh air start-up conditions are met includes: in response to the fresh air air conditioner being in a cooling mode, determining whether the indoor air temperature is greater than the outdoor air temperature; in response to determining that the indoor air temperature is greater than the outdoor air temperature, determining that the fresh air start-up conditions are met; in response to determining that the indoor air temperature is less than or equal to the outdoor air temperature, determining whether the outdoor air quality is better than the indoor air quality; in response to determining that the outdoor air quality is better than the indoor air quality, determining that the fresh air start-up conditions are met.

[0007] In some embodiments, after controlling the fresh air fan to start, the fresh air control method includes: determining whether the indoor environment brightness is greater than or equal to a preset brightness; in response to determining that the indoor environment brightness is greater than or equal to the preset brightness, setting the upper limit of the speed of the fresh air fan to a first upper limit of the speed; in response to determining that the indoor environment brightness is less than the preset brightness, setting the upper limit of the speed of the fresh air fan to a second upper limit of the speed; the first upper limit of the speed is greater than the second upper limit of the speed.

[0008] In some embodiments, after controlling the fresh air blower to start, the fresh air control method includes: determining whether there is no one in the room and whether the duration of no one in the room is less than a preset time; in response to determining that there is no one in the room and the duration of no one in the room is less than a preset time, controlling the fresh air blower to reduce to a minimum speed.

[0009] In some embodiments, the fresh air module includes a humidifying mechanism and a dehumidifying mechanism; after controlling the fresh air fan to start, the fresh air control method includes: in response to determining that the indoor air humidity is less than a first preset humidity, controlling the humidifying mechanism to start; in response to determining that the indoor air humidity is greater than a second preset humidity, controlling the dehumidifying mechanism to start; in response to determining that the indoor air humidity is greater than or equal to the first preset humidity and less than or equal to the second preset humidity, controlling the humidifying mechanism and the dehumidifying mechanism to stop; the first preset humidity is lower than the second preset humidity.

[0010] In a second aspect, an embodiment of the present application provides a fresh air control device for controlling a fresh air air conditioner, wherein the fresh air air conditioner includes a fresh air module, and the fresh air module includes a fresh air fan. The fresh air control device includes: a pre-judgment circuit, configured to determine whether the fresh air start-up conditions are met; a fresh air start-up circuit, configured to control the start-up of the fresh air fan in response to determining that the fresh air start-up conditions are met; a time prediction circuit, configured to predict the time when the indoor air quality reaches the standard based on the volume flow rate of the fresh air fan, the indoor space volume, the outdoor air quality and the indoor air quality; and a fan adjustment circuit, configured to adjust the operating parameters of the fresh air fan according to the time when the indoor air quality reaches the standard.

[0011] In a third aspect, an embodiment of the present application provides a fresh air air conditioner, comprising: a fresh air fan; a memory storing a computer program; and a processor, wherein when the computer program is executed by the processor, a fresh air control method provided in any of the above embodiments is implemented.

[0012] In some embodiments, the fresh air module includes a humidification mechanism and a dehumidification mechanism.

[0013] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and the computer program is loaded by a processor to execute the steps in the fresh air control method described above.

[0014] The fresh air control method provided in the embodiment of the present application can control the start-up of the fresh air fan when the fresh air start-up conditions are met, and predict the time when the indoor air quality reaches the standard based on the volume flow rate of the fresh air fan, the volume of the indoor space, the outdoor air quality and the indoor air quality, and then adjust the operating parameters of the fresh air fan according to the time when the indoor air quality reaches the standard, so that the indoor air quality can quickly reach the preset air standard in a shorter time, thereby quickly improving the air quality of the indoor environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 is a flow chart of a fresh air control method provided by some embodiments of the present application;

[0017] Figure 2 is a partial flow chart of a fresh air control method provided in some embodiments of the present application;

[0018] Figure 3 is another partial flow chart of the fresh air control method provided by some embodiments of the present application;

[0019] Figure 4 is another partial flow chart of the fresh air control method provided in some embodiments of the present application;

[0020] Figure 5 is another partial flow chart of the fresh air control method provided in some embodiments of the present application;

[0021] Figure 6 is another partial flow chart of the fresh air control method provided in some embodiments of the present application;

[0022] Figure 7This is a structural diagram of a fresh air air conditioner provided in some embodiments of the present application.

[0023] Description of main component symbols:

[0024] 1-Fresh air air conditioner, 10-Processor, 20-Memory. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0028] The use of "suitable for" or "configured to" in this application is meant to be open and inclusive language, which does not exclude devices that are suitable for or configured to perform additional tasks or steps. In addition, the use of "based on" is meant to be open and inclusive, because the process, step, calculation or other action "based on" one or more stated conditions or values ​​can be based on additional conditions or values ​​beyond the stated values ​​in practice.

[0029] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0030] like Figure 1 As shown, in the first aspect, an embodiment of the present application provides a fresh air control method for controlling a fresh air air conditioner. The fresh air control method includes S10 to S40, which can better achieve the fresh air control effect and improve the indoor air quality more quickly.

[0031] The fresh air air conditioner includes a fresh air module, and the fresh air module includes a fresh air fan. When the fresh air fan is running, a pressure difference can be formed between the indoor and outdoor environments, thereby sucking the outdoor fresh air into the indoor environment. The type of the fresh air air conditioner can be determined according to actual needs, and can be, for example, a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, and other air conditioner types with a fresh air function, which are not limited in the embodiments of the present application.

[0032] S10: Determine whether the fresh air start-up condition is met. Here, the fresh air start-up condition can be determined according to actual needs, for example, indoor and outdoor temperature difference conditions, indoor and outdoor air quality conditions, etc., which are not limited in the present embodiment.

[0033] S20: In response to determining that the fresh air start-up condition is met, controlling the fresh air fan to start. When it is determined that the fresh air start-up condition is met, the fresh air fan can be controlled to start to draw outdoor fresh air into the room, thereby improving the indoor air quality.

[0034] S30: Predict the time when the indoor air quality reaches the standard based on the volume flow rate of the fresh air fan, the volume of the indoor space, the outdoor air quality and the indoor air quality.

[0035] Here, the volume flow rate of the fresh air fan refers to the volume of fresh air sucked in per unit time when the fresh air fan is running. The indoor space volume refers to the volume of the current indoor space, which can be manually input by the user or measured and determined by a distance measuring sensor arranged on the indoor side of the fresh air air conditioner. The outdoor air quality can be measured and determined in real time by a sensor arranged on the outdoor side of the fresh air air conditioner, or it can be obtained by the fresh air air conditioner from the air quality information released by the air quality measurement unit through the communication network. The indoor air quality can be measured and determined in real time by a sensor arranged on the indoor side of the fresh air air conditioner.

[0036] According to the volume flow rate of the fresh air fan, the volume of the indoor space, the outdoor air quality and the indoor air quality, based on the air quality compliance prediction model pre-set in the fresh air air conditioner, the time required for the indoor air quality to reach the preset air standard can be predicted. The type of the air quality compliance prediction model can be determined according to actual needs, and can adopt types such as artificial neural network prediction models, which are not limited in the embodiments of the present application.

[0037] S40: Adjust the operating parameters of the fresh air fan according to the time it takes for the indoor air quality to reach the standard.

[0038] After predicting the time when the indoor air quality reaches the standard, the operating parameters of the fresh air fan can be adjusted according to the time when the indoor air quality reaches the standard, so as to shorten the time when the indoor air quality reaches the standard and make the indoor air quality quickly reach the preset air standard in a shorter time, thereby quickly improving the air quality of the indoor environment.

[0039] Compared with the related art, the fresh air control method provided in the embodiment of the present application can control the start-up of the fresh air fan when the fresh air start-up conditions are met, and predict the time for the indoor air quality to reach the standard based on the volume flow rate of the fresh air fan, the volume of the indoor space, the outdoor air quality and the indoor air quality, and then adjust the operating parameters of the fresh air fan according to the time for the indoor air quality to reach the standard, so that the indoor air quality can quickly reach the preset air standard in a shorter time, thereby quickly improving the air quality of the indoor environment.

[0040] like Figure 2 As shown, in some embodiments, S40 may include S41-S44.

[0041] S41: Determine the time interval in which the indoor air quality meets the standard.

[0042] Here, a plurality of time intervals for reaching the standard that are distributed in sequence and continuously can be pre-set in the control system of the fresh air air conditioner, and a different preset acceleration is set for each time interval for reaching the standard. The specific value of the preset acceleration can be determined according to actual needs, and can be set to zero or a non-zero value; when the preset acceleration is zero, the preset acceleration can be used to control the speed of the fresh air fan to remain unchanged; when the preset acceleration is a non-zero value, the preset acceleration can be used to control the speed of the fresh air fan to gradually increase, so as to gradually shorten the time for indoor air quality to reach the standard. Exemplarily, the longer the time for indoor air quality to reach the standard is, the greater the corresponding preset acceleration is; conversely, the shorter the time for indoor air quality to reach the standard is, the smaller the corresponding preset acceleration is.

[0043] In some examples, three consecutively distributed target time intervals can be pre-set in the control system of the fresh air air conditioner, namely, a first target time interval greater than the first target time threshold, a second target time interval less than or equal to the first target time threshold and greater than the second target time threshold, and a third target time interval less than or equal to the second target time threshold. The first target time interval can correspond to the first preset acceleration, the second target time interval can correspond to the second preset acceleration, and the third target time interval can correspond to the third preset acceleration, and the first preset acceleration, the second preset acceleration, and the third preset acceleration decrease in sequence. Exemplarily, the third preset acceleration can be zero; and again exemplary, the third preset acceleration can be a non-zero value. The specific values ​​of the first target time threshold and the second target time threshold can be determined according to actual needs, and the embodiments of the present application are not limited to this; Exemplarily, the first target time threshold can be 20 to 22 minutes, and the second target time threshold can be 10 to 12 minutes.

[0044] S42: In response to determining that the indoor air quality standard-reaching time is within a first standard-reaching time interval, controlling the rotation speed of the fresh air fan to accelerate by a first preset acceleration amount at every preset time interval.

[0045] The preset time interval can be pre-set in the control system of the fresh air air conditioner, and is used as the time interval between two acceleration actions of the fresh air fan. The specific value of the preset time interval can be determined according to actual needs, and the embodiment of the present application does not limit this; for example, the preset time interval can be set to 8 to 12 minutes, and different values ​​such as 8 minutes, 9 minutes, 10 minutes, 11 minutes or 12 minutes can be used.

[0046] When it is determined that the indoor air quality reaching standard time is within the first reaching standard time interval, it can be determined that if the fresh air fan is operated at the current speed, it will take a long time to improve the indoor air quality to above the preset air standard. At this time, the speed of the fresh air fan can be controlled to quickly accelerate at a first preset acceleration amount with a larger value at every preset time interval; in other words, the speed of the fresh air fan can be first controlled to increase the first preset acceleration amount, and the fresh air fan can be controlled to run at the accelerated speed for a preset time interval, and then the speed of the fresh air fan can be controlled to increase the first preset acceleration amount again after the preset time interval is reached, so as to gradually shorten the indoor air quality reaching standard time, so that the indoor air quality can quickly reach the preset air standard in a shorter time.

[0047] S43: In response to determining that the indoor air quality reaching standard time is within the second reaching standard time interval, controlling the speed of the fresh air fan to accelerate by a second preset acceleration amount at every preset time interval, wherein the first preset acceleration amount is greater than the second preset acceleration amount, and the second preset acceleration amount is greater than zero.

[0048] When it is determined that the indoor air quality reaching standard time is within the second reaching standard time interval, it can be determined that if the fresh air fan is operated at the current speed, it will take a long time to improve the indoor air quality to above the preset air standard. At this time, the speed of the fresh air fan can be controlled to moderately accelerate at a second preset acceleration amount with a relatively moderate value at every preset time interval; in other words, the speed of the fresh air fan can be first controlled to increase the second preset acceleration amount, and the fresh air fan can be controlled to run at the accelerated speed for a preset time interval, and then the speed of the fresh air fan can be controlled to increase the second preset acceleration amount again after the preset time interval is reached, so as to gradually shorten the indoor air quality reaching standard time, so that the indoor air quality can quickly reach the preset air standard in a shorter time.

[0049] S44: In response to determining that the indoor air quality standard-reaching time is within the third standard-reaching time interval, controlling the rotation speed of the fresh air fan to accelerate by a third preset acceleration amount at every preset time interval.

[0050] Among them, the second preset acceleration is greater than the third preset acceleration, and the third preset acceleration is greater than or equal to zero. When the third preset acceleration is zero, the speed of the fresh air fan can be controlled to remain unchanged; when the third preset acceleration is greater than zero, the speed of the fresh air fan can be controlled to gradually increase at preset time intervals. The specific values ​​of the first preset acceleration, the second preset acceleration and the third preset acceleration can be determined according to actual needs, and the embodiments of the present application are not limited to this. Exemplarily, the first preset acceleration can be set to 18~22rpm, and different values ​​such as 18rpm, 19rpm, 20rpm, 21rpm or 22rpm can be used; Exemplarily, the second preset acceleration can be set to 8~12rpm, and different values ​​such as 8rpm, 9rpm, 10rpm, 11rpm or 12rpm can be used. Exemplarily, the third preset acceleration can be set to 0~2rpm, and different values ​​such as 0, 1rpm or 2rpm can be used.

[0051] When it is determined that the indoor air quality reaching standard time is within the third reaching standard time interval, it can be determined that if the fresh air fan is operated at the current speed, it will take a shorter time or a slightly longer time to improve the indoor air quality to above the preset air standard. At this time, the speed of the fresh air fan can be controlled to accelerate at a third preset acceleration amount with a smaller value or even zero at every preset time interval. In other words, if it only takes a shorter time to improve the indoor air quality to above the preset air standard, the third preset acceleration amount can be set to a value greater than zero, and at this time, the speed of the fresh air fan can be first controlled to increase the third preset acceleration amount, and the fresh air fan can be controlled to run at the accelerated speed for a preset time interval, and then the speed of the fresh air fan can be controlled to increase the third preset acceleration amount again after the preset time interval is reached; if it takes a slightly longer time to improve the indoor air quality to above the preset air standard, the third preset acceleration amount can be set to zero, and at this time, the speed of the fresh air fan can be controlled to remain unchanged.

[0052] By setting S41~S44, the fresh air control method provided in the embodiment of the present application can use different preset acceleration amounts to control the speed of the fresh air fan to gradually accelerate to different degrees according to the time interval in which the indoor air quality reaches the standard, so that the indoor air quality can quickly reach the preset air standard in a shorter time, thereby quickly improving the air quality of the indoor environment.

[0053] like Figure 3 As shown, in some embodiments, S10 may include S11-S14.

[0054] S11: In response to the fresh air air conditioner being in the cooling mode, determining whether the indoor air temperature is greater than the outdoor air temperature.

[0055] Here, the indoor air temperature can be measured in real time by a temperature sensor disposed on the indoor side of the fresh air air conditioner, and the outdoor air temperature can be measured in real time by a temperature sensor disposed on the outdoor side of the fresh air air conditioner. When the fresh air air conditioner is in cooling mode, the obtained indoor air temperature and outdoor air temperature can be compared to determine whether the indoor air temperature will fluctuate when the outdoor fresh air is inhaled.

[0056] S12: In response to determining that the indoor air temperature is greater than the outdoor air temperature, determining that a fresh air start-up condition is met.

[0057] When it is determined that the indoor air temperature is greater than the outdoor air temperature, it can be determined that the inhalation of outdoor fresh air will not cause fluctuations in the indoor air temperature; at this time, the lower temperature outdoor fresh air can be used to lower the indoor air temperature and reduce the cooling capacity required for the cooling operation of the fresh air air conditioner, so it can be determined that the fresh air start-up conditions are met.

[0058] S13: In response to determining that the indoor air temperature is less than or equal to the outdoor air temperature, determining whether the outdoor air quality is better than the indoor air quality.

[0059] When it is determined that the indoor air temperature is less than or equal to the outdoor air temperature, it can be determined that the inhalation of outdoor fresh air will cause fluctuations in the indoor air temperature, exacerbating the heat level of the indoor environment. At this point, it can be further determined whether the outdoor air quality is better than the indoor air quality to determine whether the outdoor air can be used to improve the indoor air quality.

[0060] S14: In response to determining that the outdoor air quality is better than the indoor air quality, determining that a fresh air start-up condition is met.

[0061] When it is determined that the outdoor air quality is better than the indoor air quality, the outdoor air can be used to improve the quality of the indoor air, so it can be determined that the fresh air startup conditions are also met.

[0062] By setting S11 to S14, it is possible to accurately determine whether the fresh air start-up conditions are met, so that the fresh air fan can be started in time to meet the demand for inhaling fresh air as soon as possible.

[0063] like Figure 4 As shown, in some embodiments, after S20, the fresh air control method may include S51 to S53.

[0064] S51: Determine whether the indoor environment brightness is greater than or equal to a preset brightness.

[0065] Here, the indoor environment brightness can be measured in real time by a brightness sensor installed on the indoor side of the fresh air air conditioner; the preset brightness can be pre-set in the control system of the fresh air air conditioner to determine the activity status of indoor users.

[0066] S52: In response to determining that the indoor environment brightness is greater than or equal to the preset brightness, setting the upper speed limit of the fresh air fan to a first upper speed limit.

[0067] S53: In response to determining that the indoor environment brightness is less than the preset brightness, the speed upper limit of the fresh air fan is set to a second speed upper limit. The first speed upper limit is greater than the second speed upper limit; illustratively, the first speed upper limit may be an integer multiple of the second speed upper limit, such as 2 times, 3 times, or other multiples.

[0068] When it is determined that the indoor environment brightness is greater than or equal to the preset brightness, it can be determined that the indoor user is currently in an active state when awake; at this time, the speed upper limit of the fresh air fan can be set to a first speed upper limit with a larger value, so that the fresh air fan can run at a larger speed to meet the indoor user's fresh air usage needs as soon as possible. When it is determined that the indoor environment brightness is less than the preset brightness, it can be determined that the indoor user is currently in a resting state such as sleeping; at this time, the speed upper limit of the fresh air fan can be set to a second speed upper limit with a smaller value, so as to limit the speed of the fresh air fan to a smaller speed, avoid generating a large operating noise, and thus avoid disturbing the indoor user's rest.

[0069] By setting S51~S53, the activity status of indoor users can be judged according to the indoor environment brightness, and then the upper limit of the speed of the fresh air fan can be adjusted according to the activity status of the indoor users, so that the fresh air fan can be controlled to run at a higher speed when the user is awake, and the fresh air fan can be controlled to run at a lower speed when the user is resting, so as to better meet the usage needs of users in different activity states.

[0070] like Figure 5 As shown, in some embodiments, after S20, the fresh air control method may include S61-S62.

[0071] S61: Determine whether there is no one in the room and whether the duration of no one in the room is less than a preset time.

[0072] Here, a human sensor disposed on the indoor side of the fresh air air conditioner can be used to determine whether there is no one in the room and whether the duration of no one in the room is less than a preset time. The type of human sensor can be determined according to actual needs, and can be, for example, a ranging sensor, a pyroelectric sensor, a camera, etc., which is not limited in the embodiments of the present application. The preset time can be pre-set in the control system of the fresh air air conditioner, and the specific value of the preset time can be determined according to actual needs, which is not limited in the embodiments of the present application; illustratively, the preset time can be set to 3 to 5 minutes, such as 3 minutes, 4 minutes or 5 minutes.

[0073] S62: In response to determining that no one is in the room and the duration of no one in the room is less than a preset time, the fresh air fan is controlled to reduce the speed to the minimum.

[0074] When it is determined that there is no one in the room and the duration of no one in the room is less than the preset time, it can be determined that no one has been in the room for a long time. At this time, the speed of the fresh air fan can be controlled to be reduced to the lower limit of the speed to maintain the fresh air function and reduce the operating energy consumption of the fresh air function, thereby achieving better energy-saving effects.

[0075] In some embodiments, the fresh air module may include a humidification mechanism and a dehumidification mechanism, wherein the humidification mechanism is used to humidify the fresh air sucked in from the outside, and the dehumidification mechanism is used to dehumidify the fresh air sucked in from the outside. Figure 6 As shown, after S20, the fresh air control method may include S71 to S73.

[0076] S71: In response to determining that the indoor air humidity is less than a first preset humidity, controlling a humidification mechanism to start.

[0077] S72: In response to determining that the indoor air humidity is greater than a second preset humidity, controlling the dehumidification mechanism to start.

[0078] S73: In response to determining that the indoor air humidity is greater than or equal to the first preset humidity and less than or equal to the second preset humidity, controlling the humidification mechanism and the dehumidification mechanism to stop.

[0079] The first preset humidity is less than the second preset humidity. The specific values ​​of the first preset humidity and the second preset humidity can be determined according to actual needs, and the embodiment of the present application does not limit this; for example, the first preset humidity can be set to 35% to 45%, and the second preset humidity can be set to 55% to 65%.

[0080] In some examples, after S20, the fresh air control method may include S63.

[0081] S63: In response to determining that there is someone in the room, the fresh air fan is controlled to reduce to the minimum speed, and the indoor air humidity is detected, and then S71 to S73 are executed.

[0082] By setting S61~S63 and S71~S73 at the same time, the humidity can be automatically controlled when there are people in the room, further improving the comfort of the indoor environment.

[0083] In a second aspect, an embodiment of the present application provides a fresh air control device for controlling the above-mentioned fresh air air conditioner, the fresh air control device comprising: a pre-judgment circuit, configured to determine whether the fresh air start-up conditions are met; a fresh air start-up circuit, configured to control the start-up of the fresh air fan in response to determining that the fresh air start-up conditions are met; a time prediction circuit, configured to predict the time when the indoor air quality reaches the standard based on the volume flow rate of the fresh air fan, the indoor space volume, the outdoor air quality and the indoor air quality; a fan adjustment circuit, configured to adjust the operating parameters of the fresh air fan according to the time when the indoor air quality reaches the standard.

[0084] like Figure 7 As shown, in the third aspect, the embodiment of the present application provides a fresh air air conditioner, which includes a fresh air fan, a processor 10 and a memory 20. The memory 20 stores a computer program, and when the computer program is executed by the processor 10, the fresh air control method provided in any of the above embodiments is implemented. The type of the fresh air air conditioner can be determined according to actual needs, and can be, for example, a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, and other air conditioner types with a fresh air function, which are not limited in the embodiment of the present application.

[0085] The processor 10 is connected to the memory 20, and can perform various actions and processes according to the program stored in the memory 20. Specifically, the processor 10 can be an integrated circuit chip with signal processing capabilities. The above-mentioned processor 10 can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc., which can be an X86 architecture or an ARM architecture.

[0086] The memory 20 may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronously linked dynamic random access memory (SLDRAM), and direct memory bus random access memory (DRRAM). It should be noted that the memory 20 of the method described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0087] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored. The computer program is loaded by the processor 10 to execute the steps in the control method of any of the above embodiments.

[0088] Exemplarily, the above-mentioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or magnetic tapes, etc.), optical disks (e.g., CDs (Compact Disks), DVDs (Digital Versatile Disks), etc.), smart cards and flash memory devices (e.g., EPROMs (Erasable Programmable Read-Only Memory), cards, sticks or key drives, etc.). The various computer-readable storage media described in the embodiments of the present application may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and / or carrying instructions and / or data.

[0089] The above is a detailed introduction to a fresh air control method, device, fresh air air conditioner and computer-readable storage medium provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A fresh air control method, characterized in that: Used to control a fresh air air conditioner, the fresh air air conditioner includes a fresh air module, the fresh air module includes a fresh air fan, and the fresh air control method includes: Determine whether fresh air start-up conditions are met; In response to determining that the fresh air start-up condition is met, controlling the fresh air fan to start; Predicting the time when indoor air quality will reach the standard based on the volume flow of the fresh air fan, the volume of the indoor space, the outdoor air quality and the indoor air quality; The operating parameters of the fresh air fan are adjusted according to the time for the indoor air quality to reach the standard.

2. The fresh air control method according to claim 1, characterized in that: Adjusting the operating parameters of the fresh air fan according to the indoor air quality reaching standard time includes: Determine the time interval in which the indoor air quality reaches the standard; In response to determining that the indoor air quality standard-reaching time is within a first standard-reaching time interval, controlling the rotation speed of the fresh air fan to accelerate by a first preset acceleration amount at every preset time interval; In response to determining that the indoor air quality standard-reaching time is within a second standard-reaching time interval, controlling the rotation speed of the fresh air fan to accelerate by a second preset acceleration amount at every preset time interval; In response to determining that the indoor air quality standard-reaching time is within a third standard-reaching time interval, controlling the rotation speed of the fresh air fan to accelerate by a third preset acceleration amount at every preset time interval; The first target time interval is a target time interval greater than a first target time threshold, the second target time interval is a target time interval less than or equal to the first target time threshold and greater than the second target time threshold, and the third target time interval is a target time interval less than or equal to the second target time threshold; the first preset acceleration is greater than the second preset acceleration, the second preset acceleration is greater than the third preset acceleration, and the third preset acceleration is greater than or equal to zero.

3. The fresh air control method according to claim 1, characterized in that: Determine whether fresh air startup conditions are met, including: In response to the fresh air air conditioner being in a cooling mode, determining whether the indoor air temperature is greater than the outdoor air temperature; In response to determining that the indoor air temperature is greater than the outdoor air temperature, determining that a fresh air start condition is met; In response to determining that the indoor air temperature is less than or equal to the outdoor air temperature, determining whether the outdoor air quality is better than the indoor air quality; In response to determining that the outdoor air quality is better than the indoor air quality, it is determined that the fresh air start condition is met.

4. The fresh air control method according to claim 1, characterized in that: After controlling the fresh air fan to start, the fresh air control method includes: Determine whether the indoor environment brightness is greater than or equal to the preset brightness; In response to determining that the indoor environment brightness is greater than or equal to a preset brightness, setting the upper limit of the speed of the fresh air fan to a first upper limit of the speed; In response to determining that the indoor environment brightness is less than a preset brightness, setting the upper limit of the rotation speed of the fresh air fan to a second upper limit of the rotation speed; The first upper speed limit is greater than the second upper speed limit.

5. The fresh air control method according to claim 1, characterized in that: After controlling the fresh air fan to start, the fresh air control method includes: Determine whether there is no one in the room and whether the duration of no one in the room is less than a preset time; In response to determining that no one is indoors and the duration of no one indoors is less than a preset time, the fresh air blower is controlled to reduce the speed to a minimum.

6. The fresh air control method according to claim 1, characterized in that: The fresh air module includes a humidification mechanism and a dehumidification mechanism; after controlling the fresh air fan to start, the fresh air control method includes: In response to determining that the indoor air humidity is less than a first preset humidity, controlling the humidification mechanism to start; In response to determining that the indoor air humidity is greater than a second preset humidity, controlling the dehumidification mechanism to start; In response to determining that the indoor air humidity is greater than or equal to the first preset humidity and less than or equal to the second preset humidity, controlling the humidification mechanism and the dehumidification mechanism to stop; The first preset humidity is lower than the second preset humidity.

7. A fresh air control device, characterized in that: Used to control a fresh air air conditioner, the fresh air air conditioner includes a fresh air module, the fresh air module includes a fresh air fan, and the fresh air control device includes: A pre-judgment circuit is configured to determine whether a fresh air start-up condition is met; A fresh air starting circuit is configured to control the fresh air fan to start in response to determining that the fresh air starting condition is met; A time prediction circuit is configured to predict the time when the indoor air quality reaches the standard according to the volume flow rate of the fresh air fan, the volume of the indoor space, the outdoor air quality and the indoor air quality; The fan adjustment circuit is configured to adjust the operating parameters of the fresh air fan according to the time for the indoor air quality to reach the standard.

8. A fresh air air conditioner, characterized in that: include: Fresh air fan; a memory storing a computer program; A processor, wherein when the computer program is executed by the processor, the fresh air control method according to any one of claims 1 to 6 is implemented.

9. The fresh air air conditioner according to claim 8, characterized in that: The fresh air module includes a humidification mechanism and a dehumidification mechanism.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in the fresh air control method according to any one of claims 1 to 6.

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