Fresh air control method and device based on indoor and outdoor air quality and fresh air air conditioner

Abstract

The application relates to the fresh air technology field and discloses a fresh air control method based on indoor and outdoor air quality. The fresh air control method comprises the following steps: obtaining indoor detection data and outdoor detection data corresponding to each air quality index in at least two air quality indexes; determining a comprehensive relative air quality parameter corresponding to the at least two air quality indexes according to the indoor detection data and the outdoor detection data corresponding to each air quality index; the comprehensive relative air quality parameter is used for indicating the advantages and disadvantages of outdoor air quality relative to indoor air quality; in the case that the comprehensive relative air quality parameter indicates that the outdoor air quality is better than the indoor air quality, a fresh air device is started to ventilate the indoor and outdoor air. The fresh air control method can improve the freshening effect of fresh air on indoor air. The application further discloses a fresh air control device based on indoor and outdoor air quality and a fresh air air conditioner.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fresh air technology, for example to a fresh air control method and device based on indoor and outdoor air quality and a fresh air air conditioner. BACKGROUND

[0002] Currently, a fresh air device is usually installed to adjust various air quality indexes (such as CO2 concentration, formaldehyde concentration, and PM2.5 concentration) in the room, such as adjusting the CO2 concentration in the room, adjusting the formaldehyde concentration in the room, and adjusting the PM2.5 concentration. During the operation of the fresh air, a certain positive pressure is maintained in the room relative to the outdoor air to enable air circulation in the room and achieve indoor air exchange.

[0003] In general, in the case of poor indoor air quality, the fresh air system can be turned on to achieve indoor air exchange. For example, the indoor air quality can be determined by collecting formaldehyde concentration information, PM2.5 concentration information, carbon oxide gas concentration information, hydrogen sulfide gas concentration information, temperature information, and humidity information, and using a fuzzy comprehensive evaluation method to comprehensively evaluate the formaldehyde concentration information, PM2.5 concentration information, carbon oxide gas concentration information, hydrogen sulfide gas concentration, temperature information, and humidity information to determine the indoor air quality.

[0004] In the process of implementing the embodiments of the present application, it is found that at least the following problems exist in the related art:

[0005] In the control process of the fresh air device, outdoor air is sucked into the room to complete air circulation in the room. At this time, the indoor air quality is calculated independently, the outdoor air quality is ignored, and the fresh air device is controlled only based on the indoor air quality, which can easily lead to poor fresh air effect on indoor air.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an overall description of the application, nor is it intended to determine key / important elements or delineate the scope of the embodiments. It is intended as a prelude to the detailed description below.

[0008] The embodiments of the present application provide a fresh air control method, device, and fresh air air conditioner for indoor and outdoor air quality, to more appropriately control the opening or closing of the fresh air device and improve the fresh air effect on indoor air.

[0009] In some embodiments, the fresh air control method based on indoor and outdoor air quality comprises: obtaining indoor detection data and outdoor detection data corresponding to each of at least two air quality indexes; determining a comprehensive relative air quality parameter corresponding to the at least two air quality indexes according to the indoor detection data and the outdoor detection data corresponding to each of the at least two air quality indexes; the comprehensive relative air quality parameter is used to represent the advantage or disadvantage of outdoor air quality relative to indoor air quality; in the case that the comprehensive relative air quality parameter represents that the outdoor air quality is better than the indoor air quality, turning on a fresh air device to ventilate the indoor and outdoor.

[0010] Optionally, the determining of the comprehensive relative air quality parameter corresponding to the at least two air quality indexes according to the indoor detection data and the outdoor detection data corresponding to each of the at least two air quality indexes comprises: obtaining a relative air quality parameter corresponding to each of the at least two air quality indexes by the following way: for one air quality index, in the case that the outdoor detection data is more beneficial to the health than the indoor detection data, or in the case that the outdoor detection data is closer to a set value than the indoor detection data, or in the case that one of the outdoor detection data and the indoor detection data is less than the set value and the other is greater than the set value, a first preset value is taken as the relative air quality parameter corresponding to the one air quality index; in the case that the indoor detection data is more beneficial to the health than the outdoor detection data, or in the case that both the outdoor detection data and the indoor detection data are greater than or less than the set value and the indoor detection data is closer to the set value than the outdoor detection data, a second preset value is taken as the relative air quality parameter corresponding to the one air quality index; the first preset value and the second preset value are different in size; and the comprehensive relative air quality parameter is determined according to the relative air quality parameter corresponding to each of the at least two air quality indexes.

[0011] Optionally, the determining of the comprehensive relative air quality parameter according to the relative air quality parameter corresponding to each of the at least two air quality indexes comprises: obtaining a weight sequence related to user demand; the weights in the weight sequence correspond to the air quality indexes one by one; calculating a weighted average / sum of the relative air quality parameters corresponding to the at least two air quality indexes according to the weight sequence; and taking the weighted average / sum as the comprehensive relative air quality parameter.

[0012] Optionally, the obtaining of the weight sequence related to user demand comprises: obtaining a basic weight sequence; each weight in the basic weight sequence is the same, or the size of the weight value in the basic weight sequence is positively correlated with the severity represented by the average outdoor data of the air quality index corresponding to the weight; detecting the adjustment of the basic weight sequence by the user; and taking the adjusted basic weight sequence as the final weight sequence.

[0013] Optionally, the better or worse of the outdoor air quality and the indoor air quality is determined by: if the first preset value is greater than the second preset value, and if the comprehensive relative air quality parameter is greater than a set threshold, it is determined that the outdoor air quality is better than the indoor air quality; if the comprehensive relative air quality parameter is less than or equal to the set threshold, it is determined that the outdoor air quality is worse than the indoor air quality.

[0014] Optionally, the better or worse of the outdoor air quality and the indoor air quality is determined by: if the first preset value is less than the second preset value, and if the comprehensive relative air quality parameter is less than a set threshold, it is determined that the outdoor air quality is better than the indoor air quality; if the comprehensive relative air quality parameter is greater than or equal to the set threshold, it is determined that the outdoor air quality is worse than the indoor air quality.

[0015] In some embodiments, the fresh air control method based on indoor and outdoor air quality further comprises: in the case that the comprehensive relative air quality parameter indicates that the outdoor air quality is worse than the indoor air quality, closing the fresh air device and stopping the ventilation between the indoor and the outdoor.

[0016] In some embodiments, the fresh air control method based on indoor and outdoor air quality further comprises: in the case that the comprehensive relative air quality parameter indicates that the outdoor air quality is worse than the indoor air quality, reminding the user; and / or sending the indoor detection data and the outdoor detection data corresponding to the at least two air quality indexes to a mobile terminal, so that the mobile terminal displays the indoor detection data and the outdoor detection data corresponding to the at least two air quality indexes.

[0017] In some embodiments, the fresh air control device based on indoor and outdoor air quality comprises an obtaining module, a determining module and a first control module; the obtaining module is configured to obtain indoor detection data and outdoor detection data corresponding to each air quality index in at least two air quality indexes; the determining module is configured to determine a comprehensive relative air quality parameter corresponding to the at least two air quality indexes according to the indoor detection data and the outdoor detection data corresponding to each air quality index; the comprehensive relative air quality parameter is configured to indicate the better or worse of the outdoor air quality relative to the indoor air quality; and the first control module is configured to open the fresh air device and ventilate the indoor and the outdoor in the case that the comprehensive relative air quality parameter indicates that the outdoor air quality is better than the indoor air quality.

[0018] In some embodiments, the fresh air control device based on indoor and outdoor air quality comprises a processor and a memory storing program instructions, and the processor is configured to execute the program instructions to perform the fresh air control method based on indoor and outdoor air quality provided in the foregoing embodiments.

[0019] In some embodiments, the fresh air conditioner comprises the fresh air control device based on indoor and outdoor air quality provided in the foregoing embodiments.

[0020] The fresh air control method and device based on indoor and outdoor air quality and the fresh air conditioner provided in the embodiments of the present application can achieve the following technical effects:

[0021] The comprehensive relative air quality parameter determined based on the indoor detection data and the outdoor detection data corresponding to the at least two air quality indexes can represent the advantages and disadvantages of the outdoor air quality relative to the indoor air quality as a whole; in this way, in the case that the outdoor air quality is better than the indoor air quality, the fresh air device is turned on to introduce the outdoor air with better air quality into the indoor air with worse air quality, so that the fresh effect on the indoor air can be maintained or improved.

[0022] The foregoing general description and the following description are merely exemplary and explanatory, and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, and elements with the same reference numerals are considered as similar elements, and wherein:

[0024] Figure 1 is an embodiment scene schematic diagram of a fresh air control method based on indoor and outdoor air quality provided in the embodiments of the present application;

[0025] Figure 2 is a flow schematic diagram of a fresh air control method based on indoor and outdoor air quality provided in the embodiments of the present application;

[0026] Figure 3 is a flow schematic diagram of a fresh air control method based on indoor and outdoor air quality provided in the embodiments of the present application;

[0027] Figure 4 is a flow schematic diagram of a fresh air control method based on indoor and outdoor air quality provided in the embodiments of the present application;

[0028] Figure 5 is a flow schematic diagram of a fresh air control method based on indoor and outdoor air quality provided in the embodiments of the present application;

[0029] Figure 6 is a schematic diagram of a fresh air control device based on indoor and outdoor air quality provided in the embodiments of the present application;

[0030] Figure 7 is a schematic diagram of a fresh air control device based on indoor and outdoor air quality provided in the embodiments of the present application. DETAILED DESCRIPTION

[0031] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present application, the implementation of the embodiments of the present application is described in detail below with reference to the accompanying drawings, which are only used for reference and do not limit the embodiments of the present application. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0032] The terms "first", "second", and the like in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances to implement the embodiments of the present application described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0033] Unless otherwise specified, the term "a plurality of" means more than two.

[0034] In the embodiments of the present application, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B represents: A or B.

[0035] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, three relationships.

[0036] Figure 1 is an implementation scenario diagram of a fresh air control method based on indoor and outdoor air quality provided by the embodiments of the present application.

[0037] As shown in Figure 1 , the room is provided with a fresh air device 11, which can realize air flow between indoor and outdoor. The fresh air device 11 can be an independent fresh air machine, can be a fresh air system composed of a supply air system and an exhaust air system, and can also be a fresh air air conditioner with fresh air function.

[0038] The outdoor is provided with a PM2.5 sensor 12 for detecting the PM2.5 concentration of the outdoor; correspondingly, the indoor is provided with a PM2.5 sensor 13 for detecting the PM2.5 concentration of the indoor.

[0039] The outdoor is provided with a formaldehyde sensor 14 for detecting the outdoor formaldehyde concentration; correspondingly, the indoor is provided with a formaldehyde sensor 15 for detecting the indoor formaldehyde concentration.

[0040] The outdoor is provided with a CO2 sensor 16 for detecting the outdoor CO2 concentration; correspondingly, the indoor is provided with a CO2 sensor 17 for detecting the indoor CO2 concentration.

[0041] The outdoor is provided with a humidity sensor 18 for detecting the outdoor humidity; correspondingly, the indoor is provided with a humidity sensor 19 for detecting the indoor humidity.

[0042] Figure 1 Four types of sensors are provided for obtaining the indoor detection data and the outdoor detection data corresponding to the four types of air indexes. In specific applications, two or three types of the above-mentioned four types of sensors can also be provided. Alternatively, sensors of other types than the sensor types shown in the figure can also be provided, such as CO sensors, SO2 sensors, H2S sensors, natural gas sensors, etc. Those skilled in the art can select appropriate types of sensors according to actual needs, but at least two types of sensors need to be provided for detecting the indoor detection data and the outdoor detection data corresponding to two types of air quality indexes. Figure 1

[0043] In the embodiments of the present application, the comprehensive relative air quality parameter determined by the indoor detection data and the outdoor detection data corresponding to at least two air quality indexes reflects the advantages and disadvantages of the outdoor air quality relative to the indoor air quality as a whole, so as to introduce the air with better air quality from the outdoor to the indoor, thereby achieving the freshening effect on the indoor air.

[0044] Figure 2 is a flowchart of a new air control method based on indoor and outdoor air quality provided by the embodiments of the present application. The new air control method based on indoor and outdoor air quality can be run in a new air machine, can be run in a central new air system, and can be run in a new air air conditioner.

[0045] In combination with the figure shown, Figure 2 The new air control method based on indoor and outdoor air quality includes:

[0046] S201, obtaining indoor detection data and outdoor detection data corresponding to each of at least two air quality indexes.

[0047] The air quality indexes include but are not limited to relative air humidity, CO2 concentration, PM2.5 concentration, PM10 concentration, formaldehyde concentration, CO concentration, SO2 concentration, H2S concentration, and natural gas concentration.

[0048] Before executing the new air control method based on indoor and outdoor air quality, at least two air quality indexes have been determined in advance, which can be manually set by a user or set before the device is shipped from the factory.

[0049] ​Each air quality index corresponds to indoor detection data and outdoor detection data. For example, in the case of the air quality index being PM2.5 concentration, the indoor detection data of PM2.5 concentration is obtained by detecting through a PM2.5 sensor arranged indoors, and the outdoor detection data of PM2.5 concentration is obtained by detecting through a PM2.5 sensor arranged outdoors; in the case of the air quality index being CO2 concentration, the indoor detection data of CO2 concentration is obtained by detecting through a CO2 sensor arranged indoors, and the outdoor detection data of CO2 concentration is obtained by detecting through a CO2 sensor arranged outdoors. Here, only PM2.5 concentration and CO2 concentration are taken as air quality indexes, and the indoor detection data and outdoor detection data of the air quality index are exemplarily described, without limiting the specific meaning of the air quality index, and when the air quality index is other content, a person skilled in the art can imitate the example to obtain the indoor detection data and outdoor detection data corresponding to other air quality indexes.

[0050] S202, determining a comprehensive relative air quality parameter corresponding to the at least two air quality indexes according to the indoor detection data and the outdoor detection data corresponding to each air quality index.

[0051] The comprehensive relative air quality parameter is used to represent the advantages and disadvantages of outdoor air quality relative to indoor air quality.

[0052] The relative air quality parameter corresponding to each air quality index in the at least two air quality indexes can be calculated according to the indoor detection data and the outdoor detection data corresponding to each air quality index; and then the comprehensive relative air quality parameter is determined according to the at least two air quality parameters, for example, the sum, weighted sum, average or weighted average of the at least two air quality parameters is calculated, and the calculated sum, weighted sum, average or weighted average is taken as the comprehensive relative air quality parameter.

[0053] S203, in the case that the comprehensive relative air quality parameter represents that the outdoor air quality is better than the indoor air quality, starting the fresh air device to ventilate the indoor and outdoor.

[0054] The comprehensive relative air quality parameter determined based on the indoor detection data and the outdoor detection data corresponding to the at least two air quality indexes can represent the advantages and disadvantages of outdoor air quality relative to indoor air quality as a whole; in this way, in the case that the outdoor air quality is better than the indoor air quality, the fresh air device is started to introduce the outdoor air with better air quality into the indoor air with worse air quality, so that the fresh effect on the indoor air can be maintained or improved.

[0055] The process of determining the comprehensive relative air quality parameter corresponding to the at least two air quality indexes is further described below.

[0056] Optionally, the comprehensive relative air quality parameter corresponding to the at least two air quality indexes is determined according to the indoor detection data and the outdoor detection data corresponding to each air quality index, and the comprehensive relative air quality parameter comprises:

[0057] The relative air quality parameter corresponding to each air quality index in the at least two air quality indexes is obtained in the following manner: for an air quality index, if the outdoor detection data is more beneficial to the health of the human body than the indoor detection data, or if the outdoor detection data is closer to the set value than the indoor detection data, or if one of the outdoor detection data and the indoor detection data is less than the set value and the other is greater than the set value, a first preset value is taken as the relative air quality parameter corresponding to the air quality index; if the indoor detection data is more beneficial to the health of the human body than the outdoor detection data, or if the indoor detection data and the outdoor detection data are both greater than the set value or both less than the set value and the indoor detection data is closer to the set value than the outdoor detection data, a second preset value is taken as the relative air quality parameter corresponding to the air quality index; the first preset value and the second preset value are different in size.

[0058] The comprehensive relative air quality parameter is determined according to the relative air quality parameter corresponding to each air quality index.

[0059] The above-mentioned air quality index refers to any one of the at least two air quality indexes. The first preset value and the second preset value are two values different in size, and a person skilled in the art can determine one number as the first preset value and another number as the second preset value according to daily use habits. For example, the number 1 can be taken as the first preset value and the number -1 can be taken as the second preset value; or the number 1 can be taken as the first preset value and the number 0 can be taken as the second preset value; or the number 1 can be taken as the first preset value and the number 2 can be taken as the second preset value.

[0060] The outdoor detection value is more beneficial to the health of the body, which means that the outdoor detection value is closer to the value range of the health of the body or the value range of the comfort of the body than the indoor detection data. For the determination condition of the outdoor detection value and the indoor detection value being more beneficial to the body, for example, formaldehyde is harmful to the body, generally, the weighted concentration of the outdoor detection value is less than that of the indoor detection value, which means that the outdoor detection value is more beneficial to the health of the body; for example, the human body suitable humidity is 30% to 60%, in the summer rainy days, the indoor humidity of the low floor will exceed 60%, at this time, if the outdoor humidity is lower than the indoor humidity, or even the outdoor humidity is lower than 60% (for example, the outdoor wind), it is determined that the outdoor detection value is more beneficial to the health of the body, and in the winter in the northern region of China, the indoor humidity of the non-water area will generally be lower than 30%, at this time, if the outdoor humidity is higher than the indoor humidity, or even the outdoor humidity is higher than 30% (for example, after snow and the beginning of snow melting), it is determined that the outdoor detection value is more beneficial to the health of the body.

[0061] The set value is a value set by the user for an air quality index or a value conducive to the comfort and health of the user obtained by existing big data calculation method and artificial intelligence recommendation method. The outdoor detection data is closer to the set value than the indoor detection data, which means that the difference between the outdoor detection data and the set value is less than the difference between the indoor detection data and the set value. In this way, the air introduced from the outdoor to the indoor is conducive to the change of the indoor detection data in the direction of approaching the set value.

[0062] One of the indoor detection data and the outdoor detection value is less than the set value, and the other is greater than the set value, and the air introduced from the outdoor to the indoor is conducive to the change of the indoor detection data in the direction of approaching the set value.

[0063] After obtaining the indoor detection data and the outdoor detection value corresponding to each of the at least two air quality indexes, the sum, weighted sum, average or weighted average of the at least two air quality parameters can be calculated, and the calculated sum, weighted sum, average or weighted average is taken as the comprehensive relative air quality parameter.

[0064] Correspondingly, after determining the comprehensive relative air quality parameter by the above technical solution, the advantages and disadvantages of the outdoor air quality and the indoor air quality can be determined by the following method: in the case that the first preset value is greater than the second preset value, for example, taking the number 1 as the first preset value and the number -1 as the second preset value, or taking the number 1 as the first preset value and the number 0 as the second preset value, if the comprehensive relative air quality parameter is greater than the set threshold, it is determined that the outdoor air quality is better than the indoor air quality; if the comprehensive relative air quality parameter is less than or equal to the set threshold, it is determined that the outdoor air quality is worse than the indoor air quality.

[0065] The set threshold is determined according to an average of the first preset value and the second preset value. For example, the average of the first preset value and the second preset value is taken as the set threshold; or, a sum of the average and the first increasing coefficient is taken as the set threshold; or, a difference obtained by subtracting the first decreasing coefficient from the average is taken as the set threshold. Or,

[0066] An average of the first preset value and the second preset value is calculated, and a product of the average and the number of the air quality indexes is taken as the set threshold; or, a sum of the product and the first increasing coefficient is taken as the set threshold; or, a difference obtained by subtracting the first decreasing coefficient from the product is taken as the set threshold.

[0067] The first increasing coefficient reflects the user's demand for the quality of the fresh air, and the greater the quality of the fresh air demanded by the user, the greater the first increasing coefficient, and the higher the degree that the outdoor air quality is better than the indoor air quality as a whole in the case of opening the fresh air device. The first decreasing coefficient reflects the user's demand for the fresh air, and the more the user is used to the fresh air, the greater the first decreasing coefficient, but the lower the degree that the outdoor air quality is better than the indoor air quality as a whole in the case of opening the fresh air device.

[0068] The set threshold determined by the first increasing coefficient can meet the user's demand for the quality of the fresh air, and the set threshold determined by the first decreasing coefficient can meet the user's demand for the high-frequency fresh air. The technical solutions for determining the set threshold can meet different demands of different users.

[0069] Or, the following method is used to determine the quality of the outdoor air and the indoor air: in the case that the first preset value is less than the second preset value, for example, the number 1 is taken as the first preset value and the number 2 is taken as the second preset value, if the comprehensive relative air quality parameter is less than the set threshold, it is determined that the outdoor air quality is better than the indoor air quality; if the comprehensive relative air quality parameter is greater than or equal to the set threshold, it is determined that the outdoor air quality is worse than the indoor air quality.

[0070] Similarly, the set threshold is determined according to an average of the first preset value and the second preset value. For example, the average of the first preset value and the second preset value is taken as the set threshold; or, a difference obtained by subtracting the second decreasing coefficient from the average is taken as the set threshold; or, a sum of the average and the second increasing coefficient is taken as the set threshold. Or,

[0071] The average of the first preset value and the second preset value is calculated, and the product of the average and the number of the air quality indexes is taken as the set threshold value; or the difference between the second reduction coefficient is taken as the set threshold value; or the sum of the product and the second increase coefficient is taken as the set coefficient.

[0072] The second reduction coefficient reflects the user's demand for the quality of fresh air, and the higher the quality of fresh air demanded by the user, the greater the second reduction coefficient, and the higher the degree that the outdoor air quality is better than the indoor air quality in the case of opening the fresh air device. The second increase coefficient reflects the user's demand for fresh air, and the more the user is used to the fresh air in the room, the greater the second increase coefficient, but the lower the degree that the outdoor air quality is better than the indoor air quality in the case of opening the fresh air device.

[0073] The set threshold value determined by the second reduction coefficient can meet the user's demand for the quality of fresh air, and the set threshold value determined by the second increase coefficient can meet the user's demand for high-frequency fresh air. After adopting the above technical solution for determining the set threshold value, different demands of different users can be met.

[0074] Further, the relative air quality parameter corresponding to each air quality index in the at least two air quality indexes can be obtained in the following way:

[0075] In the case that the outdoor air quality corresponding to the air quality index is better than the indoor air quality (the outdoor detection data is more conducive to health than the indoor detection data, or in the case that the outdoor detection data is closer to the set value than the indoor detection data, or in the case that one of the outdoor detection data and the indoor detection data is less than the set value, and the other is greater than the set value), the first type of air quality index and the second type of air quality index are obtained in the at least two air quality indexes; for the first type of air quality index, in the case that the outdoor air quality corresponding to the air quality index is better than the indoor air quality, the preset value related to the indoor detection data is taken as the relative air quality parameter corresponding to the air quality index; for the second type of air quality index, in the case that the outdoor air quality corresponding to the air quality index is better than the indoor air quality, the first preset value is taken as the relative air quality parameter corresponding to the air quality index.

[0076] The first type of air quality index is the air quality index affected by user activity, and the second type of air quality index is other air quality index in the at least two air quality indexes except the first type of air quality index.

[0077] For example, in the sleep mode, the CO2 concentration of indoor air will increase over time, especially in the case of poor ventilation in the bedroom, the increase of indoor air CO2 concentration is more obvious.

[0078] In a case where the at least two air quality indexes include a formaldehyde concentration, a PM2.5 concentration, a CO2 concentration, and a relative humidity, the CO2 concentration can be taken as the first type of air quality index, and the formaldehyde concentration, the PM2.5 concentration, and the relative humidity can be taken as the second type of air quality index.

[0079] Alternatively, the first type of air quality index is an air quality index that threatens the health status of the user, and the second type of air quality index is an air quality index other than the first type of air quality index among the at least two air quality indexes.

[0080] For example, the formaldehyde concentration in indoor air threatens the health status of a person, or, for a patient with rhinitis, the PM2.5 in indoor air easily causes the symptoms to worsen.

[0081] In a case where the at least two air quality indexes include a formaldehyde concentration, a PM2.5 concentration, a CO2 concentration, and a relative humidity, the formaldehyde concentration and the PM2.5 concentration can be taken as the first type of air quality index, and the CO2 concentration and the relative humidity can be taken as the second type of air quality index.

[0082] Alternatively, the first type of air quality index is an air quality index that is affected by the activity of the user and an air quality index that threatens the health status of the user, and the second type of air quality index is an air quality index other than the first type of air quality index among the at least two air quality indexes.

[0083] The preset value related to the indoor detection data and the first preset value are both greater than or less than the second preset value, and the preset value related to the indoor detection data is greater than or less than the first preset value.

[0084] In a case where the outdoor air quality corresponding to the air quality index is better than the indoor air quality, there can be multiple relative air parameters corresponding to the air quality index.

[0085] For example, the preset value related to the indoor detection data as the relative air quality parameter corresponding to the air quality index can include: obtaining the data range in which the indoor detection data is located; if the indoor detection data is in a first data range, a first preset value is taken as the relative air quality parameter corresponding to the air quality index; if the indoor detection data is in a second data range, a third preset value is taken as the relative air quality parameter corresponding to the air quality index; the indoor air quality represented by the second data range is worse than the air quality represented by the first data range, the first preset value is greater than the second preset value, and the third preset value is greater than the first preset value; or, the first preset value is less than the second preset value, and the third preset value is less than the first preset value.

[0086] The first data range and the second data range are pre-set data ranges, there is no overlapping data between the first data range and the second data range, and the first data range and the second data range can be two continuous data ranges, for example, the maximum value of the first data range and the minimum value of the second data range are continuous, or the minimum value of the first data range and the maximum value of the second data range are continuous.

[0087] The first data range and the second data range can also be two discontinuous data ranges, and there is one or more other data ranges between the first data range and the second data range. For example, there is one data range between the first data range and the second data range, if the indoor detection data belongs to the one data range, a preset value is taken as the relative air quality parameter corresponding to the air quality index, the second preset value is less than the first preset value, the first preset value is less than the one preset value, and the one preset value is less than the third preset value, or, the second preset value is greater than the first preset value, the first preset value is greater than the one preset value, and the one preset value is greater than the third preset value.

[0088] Or, the preset value related to the indoor detection data as the relative air quality parameter corresponding to the air quality index can include: obtaining the data range in which the indoor detection data is located; or, if the difference between the indoor detection data and the outdoor detection data is in a first data range, a second preset value is taken as the relative air quality parameter corresponding to the air quality index, if the difference between the indoor detection data and the outdoor detection data is in a second data range, a third preset value is taken as the relative air quality parameter corresponding to the air quality index, the value of the first data range is less than the value of the second data range, the first preset value is less than the second preset value, and the second preset value is less than the third preset value; or, the first preset value is greater than the second preset value, the second preset value is greater than the third preset value.

[0089] The first data range and the second data range are preset data ranges, and there is no overlapping data between the first data range and the second data range. The first data range and the second data range can be two continuous data ranges, for example, the maximum value of the first data range and the minimum value of the second data range are continuous, or the minimum value of the first data range and the maximum value of the second data range are continuous.

[0090] The first data range and the second data range can also be two discontinuous data ranges, and there is one or more other data ranges between the first data range and the second data range. For example, there is one data range between the first data range and the second data range. If the difference between the indoor detection data and the outdoor detection data belongs to the one data range, a first preset value is used as the relative air quality parameter corresponding to the air quality index, a second preset value is less than the first preset value, the first preset value is less than the one preset value, and the one preset value is less than a third preset value, or the second preset value is greater than the first preset value, the first preset value is greater than the one preset value, and the one preset value is greater than the third preset value.

[0091] For any air quality index, if the outdoor air quality corresponding to the air quality index is better than the indoor air quality, it indicates that when the air quality index is used to determine whether to start the fresh air device, the result is inclined to allow the fresh air device to be started. For the first type of air quality index, the preset value related to the indoor detection data is greater than or equal to the first preset value, or the preset value related to the indoor detection data is less than or equal to the first preset value. In this way, the influence of the preset value related to the indoor detection data on the weighted average value / weighted sum can be highlighted, and the urgency of needing fresh air can be reflected in the weighted average value / weighted sum. In the case where the first type of air quality index indicates that the outdoor air quality is better than the indoor air quality, fresh air is supplied to the indoor environment in time to better maintain the health of the user.

[0092] In the foregoing embodiments, it is mentioned that the threshold value is determined according to the average of the first preset value and the second preset value, and on this basis, the preset value related to the indoor detection data is greater than the second preset value and the first preset value, the preset value related to the indoor detection data is greater than or equal to the first preset value; or the preset value related to the indoor detection data is less than the second preset value and the first preset value, and the preset value related to the indoor detection data is less than or equal to the first preset value. The corresponding relationship between the preset value related to the indoor detection data and the threshold value can improve the possibility that the weighted average value / weighted sum is greater than the threshold value (for the case that the preset value related to the indoor detection data is greater than the second preset value and the first preset value, and the preset value related to the indoor detection data is greater than or equal to the first preset value) or the possibility that the weighted average value / weighted sum is less than the threshold value (for the case that the preset value related to the indoor detection data is less than the second preset value and the first preset value, and the preset value related to the indoor detection data is less than or equal to the first preset value) in the case that the outdoor air quality corresponding to the first type of air quality index is better than the indoor air quality, thereby improving the possibility of the determination result that the comparison result is that the outdoor overall air quality is better than the indoor overall air quality, and further improving the frequency of starting the fresh air device to better maintain the health of the user.

[0093] Further, the determination manner of the relative air quality parameter corresponding to each air quality index further comprises:

[0094] In the case that the first preset value is greater than the second preset value, for any air quality index, if the outdoor detection data belongs to the value range of serious pollution, the fourth preset value is taken as the relative air quality parameter corresponding to the air quality index; the first preset value is much smaller than the second preset value, for example, the fourth preset value is less than the second preset value, and the difference between the first preset value and the fourth preset value is more than twenty times the difference between the first preset value and the second preset value. Reduce the case that a single air quality index is too large and the fresh air device is still started.

[0095] In the case that the first preset value is less than the second preset value, for any air quality index, if the outdoor detection data belongs to the value range of serious pollution, the fourth preset value is taken as the relative air quality parameter corresponding to the air quality index; the fourth preset value is greater than the second preset value, for example, the fourth preset value is greater than the second preset value, and the difference between the fourth preset value and the first preset value is more than twenty times the difference between the second preset value and the first preset value. Reduce the case that a single air quality is too large and the fresh air device is still started.

[0096] The following takes PM2.5 concentration as an example to exemplarily illustrate the value range of serious pollution. The standard of PM2.5 concentration is as follows: 0-35 μg / m 3Belong to excellent, 35-75 μg / m 3 Belong to good, 75-115 μg / m 3 Belong to light pollution, 115-150 μg / m 3 Belong to moderate pollution, 150-250 μg / m 3 Belong to severe pollution, 250 μg / m 3 The above belongs to serious pollution. In combination with the intuitive perception of air quality, 115 μg / m 3 The above can be used as the numerical range of the above serious pollution, 150 μg / m 3 The above can be used as the numerical range of the above serious pollution, 250 μg / m 3 The above can be used as the numerical range of the above serious pollution.

[0097] The skilled person can determine the numerical range of serious pollution in combination with the commonly used way of measuring air quality and his own intuitive perception of air quality, which will not be repeated here.

[0098] Figure 3 is a flowchart of a fresh air control method based on indoor and outdoor air quality provided by an embodiment of the present application. The fresh air control method based on indoor and outdoor air quality can be run in a fresh air machine, a central fresh air system, or a fresh air air conditioner.

[0099] In combination Figure 3 As shown in the figure, the fresh air control method based on indoor and outdoor air quality comprises:

[0100] S301, obtaining indoor detection data and outdoor detection data corresponding to each air quality index in at least two air quality indexes.

[0101] S302, obtaining a weight sequence related to user demand.

[0102] The weights in the weight sequence correspond one-to-one to the air quality indexes.

[0103] The following takes the relative air humidity, CO2 concentration, PM2.5 concentration, and formaldehyde concentration as examples to illustrate the one-to-one correspondence between the weights in the weight sequence and the air quality indexes. The multiple air quality indexes are arranged in order, for example, the arrangement order of the multiple air quality indexes is: relative air humidity, CO2 concentration, PM2.5 concentration, and formaldehyde concentration, then, according to the order from first to last, the first weight in the weight sequence corresponds to the relative air humidity, the second weight in the weight sequence corresponds to the CO2 concentration, the third weight in the weight sequence corresponds to the PM2.5 concentration, and the fourth weight in the weight sequence corresponds to the formaldehyde concentration.

[0104] The weight sequence can be manually set by the user, for example, the user sets each weight in the weight sequence in turn.

[0105] Alternatively, the weight sequence related to the user's demand can be obtained by: obtaining a basic weight sequence; detecting the user's adjustment to the basic weight sequence; taking the adjusted basic weight sequence as the final weight sequence. Wherein, the basic weight sequence can be set by the factory, the weights in the basic weight sequence are all the same, or the magnitude of the weight value in the basic weight sequence is positively correlated with the severity represented by the average outdoor data of the air quality index corresponding to the weight.

[0106] By setting the basic weight sequence, the user does not need to adjust all the weights in the weight sequence to obtain the weight sequence related to the user's demand.

[0107] In addition, the basic weight sequence has a corresponding relationship with the aforementioned first preset value, second preset value, and set threshold, so that the obtained comprehensive relative air quality parameter matches the magnitude of the set threshold value. In this way, by setting the basic weight sequence, the user needs to adjust less, which is conducive to maintaining the matching relationship between the magnitude of the obtained comprehensive relative air quality parameter and the set threshold value.

[0108] Further, in the case where the magnitude of the weight value in the basic weight sequence is positively correlated with the severity represented by the average outdoor data of the air quality index corresponding to the weight, the outdoor air with a particularly poor single air quality index can be reduced from entering the indoor. The average outdoor data of the air quality index can represent the overall situation of the air quality index in the installation area of the fresh air device. If the average outdoor data of an air quality index represents a particularly severe environment, for example, the PM2.5 concentration is above 150 μg / m3, or even above 250 μg / m3, then the weight corresponding to the PM2.5 concentration is larger, the influence of the PM2.5 concentration on the comprehensive relative air quality parameter is increased, the threshold for opening the fresh air device is increased, and the outdoor air with a particularly poor single air quality index is reduced from entering the indoor.

[0109] S303, calculating the weighted average / sum of the relative air quality parameters corresponding to the at least two air quality indexes according to the weight sequence.

[0110] The product of each air quality index corresponding relative air quality parameter and the weight in the weight sequence corresponding to the air quality index is calculated respectively, and then the average / sum of all products is calculated, which is the weighted average / sum.

[0111] For example, the arrangement order of the multiple air quality indexes is: relative air humidity, CO2 concentration, PM2.5 concentration, and formaldehyde concentration. The relative air quality parameters corresponding to the relative air humidity, CO2 concentration, PM2.5 concentration, and formaldehyde concentration are calculated respectively. Then, the product of the relative air quality parameter corresponding to the relative air humidity and the first weight in the weight sequence is calculated, the product of the relative air quality parameter corresponding to the CO2 concentration and the second weight in the weight sequence is calculated, the product of the relative air quality parameter corresponding to the PM2.5 concentration and the third weight in the weight sequence is calculated, and the product of the relative air quality parameter corresponding to the formaldehyde concentration and the fourth weight in the weight sequence is calculated. Then, the average value / sum of all the above products is calculated.

[0112] S304, taking the weighted average value / weighted sum as the comprehensive relative air quality parameter.

[0113] S305, in the case that the comprehensive relative air quality parameter indicates that the outdoor air quality is better than the indoor air quality, starting the fresh air device to ventilate the indoor and outdoor.

[0114] Figure 4 is a flowchart of a fresh air control method based on indoor and outdoor air quality provided by an embodiment of the present application. The fresh air control method based on indoor and outdoor air quality can be run in a fresh air machine, a central fresh air system, or a fresh air air conditioner.

[0115] In combination with Figure 4 As shown in the figure, the fresh air control method based on indoor and outdoor air quality includes the following steps.

[0116] S401, obtaining indoor detection data and outdoor detection data corresponding to each of the at least two air quality indexes.

[0117] S402, determining a comprehensive relative air quality parameter corresponding to the at least two air quality indexes according to the indoor detection data and the outdoor detection data corresponding to each of the air quality indexes.

[0118] The comprehensive relative air quality parameter is used to indicate the advantages and disadvantages of the outdoor air quality relative to the indoor air quality.

[0119] S403, in the case that the comprehensive relative air quality parameter indicates that the outdoor air quality is better than the indoor air quality, starting the fresh air device to ventilate the indoor and outdoor.

[0120] S404, in the case that the comprehensive relative air quality parameter indicates that the outdoor air quality is worse than the indoor air quality, stopping the fresh air device to stop the ventilation of the indoor and outdoor.

[0121] In the case that the comprehensive relative air quality parameter indicates that the outdoor air quality is worse than the indoor air quality, the fresh air device is closed to reduce or avoid the entry of the outdoor air with worse air quality into the indoor air; in the case that the comprehensive relative air quality parameter indicates that the outdoor air quality is better than the indoor air quality, the fresh air device is opened again to ventilate the indoor air with the outdoor air, complete the renewal of the indoor air, and achieve the effect of fresh indoor air.

[0122] In the case that the comprehensive relative air quality parameter indicates that the outdoor air quality is worse than the indoor air quality, a user is reminded that the outdoor air quality is worse than the indoor air quality at this time. For example, the user can be reminded through the color change of an indicator light, or reminded through sound.

[0123] Figure 5 is a flowchart of a fresh air control method based on indoor and outdoor air quality provided by an embodiment of the present application. The fresh air control method based on indoor and outdoor air quality can be run in a fresh air machine, a central fresh air system, or a fresh air air conditioner.

[0124] In combination with Figure 5 As shown in the figure, the fresh air control method based on indoor and outdoor air quality includes the following steps.

[0125] S501, obtaining indoor detection data and outdoor detection data corresponding to each air quality index in at least two air quality indexes.

[0126] S502, determining a comprehensive relative air quality parameter corresponding to at least two air quality indexes according to the indoor detection data and the outdoor detection data corresponding to each air quality index.

[0127] The comprehensive relative air quality parameter is used to indicate the advantages and disadvantages of the outdoor air quality relative to the indoor air quality.

[0128] S503, sending the indoor detection data and the outdoor detection data corresponding to at least two air quality indexes to a mobile terminal.

[0129] The mobile terminal is caused to display the indoor detection data and the outdoor detection data corresponding to at least two air quality indexes.

[0130] This step can also be performed before S502. When this step is performed after S502, the comprehensive relative air quality parameter can also be sent to the mobile terminal to cause the mobile terminal to display the comprehensive relative air quality parameter.

[0131] S504, in the case that the comprehensive relative air quality parameter indicates that the outdoor air quality is better than the indoor air quality, opening the fresh air device to ventilate the indoor air with the outdoor air.

[0132] S505, in the case that the integrated relative air quality parameter indicates that the outdoor air quality is worse than the indoor air quality, the fresh air device is closed, and the ventilation between the indoor and the outdoor is stopped.

[0133] Figure 6 is a schematic diagram of a fresh air control device based on indoor and outdoor air quality provided by an embodiment of the present application. The fresh air control device can be implemented in the form of software, hardware, or a combination of software and hardware.

[0134] In combination Figure 6 As shown in the figure, the fresh air control device based on indoor and outdoor air quality comprises an obtaining module 61, a determining module 62, and a first control module 63.

[0135] The obtaining module 61 is configured to obtain indoor detection data and outdoor detection data corresponding to each of at least two air quality indexes.

[0136] The determining module 62 is configured to determine an integrated relative air quality parameter corresponding to the at least two air quality indexes according to the indoor detection data and the outdoor detection data corresponding to each of the air quality indexes; the integrated relative air quality parameter is used to indicate the relative advantages and disadvantages of the outdoor air quality with respect to the indoor air quality.

[0137] The first control module 63 is configured to, in the case that the integrated relative air quality parameter indicates that the outdoor air quality is better than the indoor air quality, open the fresh air device, and ventilate the indoor and the outdoor.

[0138] Optionally, the determining module 62 comprises an obtaining unit and a determining unit.

[0139] The obtaining unit is configured to obtain the relative air quality parameter corresponding to each of the at least two air quality indexes by the following manner: for one air quality index, in the case that the outdoor detection data is more beneficial to the health than the indoor detection data, or in the case that the outdoor detection data is closer to a set value than the indoor detection data, or in the case that one of the outdoor detection data and the indoor detection data is less than the set value and the other is greater than the set value, a first preset value is taken as the relative air quality parameter corresponding to one air quality index; in the case that the indoor detection data is more beneficial to the health than the outdoor detection data, or in the case that the outdoor detection data and the indoor detection data are both greater than the set value or both less than the set value and the indoor detection data is closer to the set value than the outdoor detection data, a second preset value is taken as the relative air quality parameter corresponding to one air quality index; the first preset value and the second preset value are different in size.

[0140] The determining unit is configured to determine the integrated relative air quality parameter according to the relative air quality parameter corresponding to each of the air quality indexes.

[0141] Optionally, the determining unit is specifically configured to obtain a weight sequence related to the user demand; the weights in the weight sequence correspond to the air quality indexes one by one; and the determining unit is configured to calculate a weighted average / sum of the relative air quality parameters corresponding to the at least two air quality indexes according to the weight sequence, and take the weighted average / sum as the comprehensive relative air quality parameter.

[0142] Optionally, the obtaining of the weight sequence related to the user demand comprises: obtaining a basic weight sequence; the weights in the basic weight sequence are all the same, or the values of the weights in the basic weight sequence are positively correlated with the severity indicated by the average outdoor data of the air quality indexes corresponding to the weights; detecting an adjustment of the basic weight sequence by the user; and taking the adjusted basic weight sequence as the final weight sequence.

[0143] Optionally, the determination of the advantages and disadvantages of the outdoor air quality and the indoor air quality is performed in the following manner:

[0144] In the case where the first preset value is greater than the second preset value, if the comprehensive relative air quality parameter is greater than a set threshold, it is determined that the outdoor air quality is superior to the indoor air quality; if the comprehensive relative air quality parameter is less than or equal to the set threshold, it is determined that the outdoor air quality is inferior to the indoor air quality; or,

[0145] In the case where the first preset value is less than the second preset value, if the comprehensive relative air quality parameter is less than a set threshold, it is determined that the outdoor air quality is superior to the indoor air quality; if the comprehensive relative air quality parameter is greater than or equal to the set threshold, it is determined that the outdoor air quality is inferior to the indoor air quality.

[0146] Optionally, the fresh air control device based on the indoor and outdoor air quality further comprises a second control module configured to, in the case where the comprehensive relative air quality parameter indicates that the outdoor air quality is inferior to the indoor air quality, close the fresh air device and stop the ventilation between the indoor and outdoor.

[0147] Optionally, the fresh air control device based on the indoor and outdoor air quality further comprises a first reminding module and / or a second reminding module.

[0148] The first reminding module is configured to, in the case where the comprehensive relative air quality parameter indicates that the outdoor air quality is inferior to the indoor air quality, remind the user.

[0149] The second reminding module is configured to send the indoor detection data and the outdoor detection data corresponding to the at least two air quality indexes to a mobile terminal, so that the mobile terminal displays the indoor detection data and the outdoor detection data corresponding to the at least two air quality indexes.

[0150] In some embodiments, the fresh air control device based on indoor and outdoor air quality comprises a processor and a memory storing program instructions, the processor is configured to execute the fresh air control method based on indoor and outdoor air quality provided by the foregoing embodiments when executing the program instructions.

[0151] Figure 7 is a schematic diagram of a fresh air control device based on indoor and outdoor air quality provided by an embodiment of the present application. As shown in Figure 7 The fresh air control device based on indoor and outdoor air quality comprises:

[0152] The processor 71 and the memory 72 can also include a communication interface 73 and a bus 74. The processor 71, the communication interface 73, and the memory 72 can communicate with each other through the bus 74. The communication interface 73 can be used for information transmission. The processor 71 can call the logical instructions in the memory 72 to execute the fresh air control method based on indoor and outdoor air quality provided by the foregoing embodiments.

[0153] In addition, the logical instructions in the memory 72 described above can be implemented in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium.

[0154] The memory 72 as a computer readable storage medium can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiments of the present application. The processor 71 executes the functions and data processing by running the software programs, instructions and modules stored in the memory 72, that is, implements the method in the foregoing method embodiments.

[0155] The memory 72 can include a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required by a function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 72 can include a high-speed random access memory, and can also include a non-volatile memory.

[0156] An embodiment of the present application provides a fresh air conditioner, comprising the fresh air control device based on indoor and outdoor air quality provided by the foregoing embodiments.

[0157] An embodiment of the present application provides a computer readable storage medium, storing computer executable instructions, the computer executable instructions are configured to execute the fresh air control method based on indoor and outdoor air quality provided by the foregoing embodiments.

[0158] The embodiment of the present application provides a computer program product, the computer program product comprises a computer program stored on a computer readable storage medium, the computer program comprises program instructions, when the program instructions are executed by a computer, the computer executes the fresh air control method based on indoor and outdoor air quality provided by the foregoing embodiment.

[0159] The computer readable storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0160] The technical scheme of the embodiment of the present application can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method in the embodiment of the present application. The foregoing storage medium can be a non-transitory storage medium, including a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes, or a transitory storage medium.

[0161] The above description and drawings are illustrative of embodiments of the application and are not to be construed as limiting the application. Other embodiments can include structural, logical, electrical, process, and other changes. The embodiments are merely examples of the many possible embodiments of the application. Unless explicitly stated otherwise, individual components and functions are optional and the order of operations can vary. Parts and features of some embodiments can be included or replaced in or by parts and features of other embodiments. Also, the word "comprising" and variations thereof, as used in the claims, mean "including but not limited to" and are not intended to exclude other moieties, constituents, steps, or elements. Unless otherwise expressly stated, the use of one or more adjectives or other modifiers in describing an embodiment does not limit the scope of that embodiment to only those items or characteristics being described. Nor does the use of the term "comprising" or "including," or variations thereof, in the claims mean that the scope of the application is not further limited to only the elements or steps described. The word "a" or "an" used in the claims means "one or more" unless otherwise expressly stated. The word "another" used in the claims means "at least a second or one or more" unless otherwise expressly stated. The word "comprise" and variations thereof, as used in the claims, do not exclude the presence of additional elements or steps. Where the disclosure of subject matter in the specification is not explicitly recited in the claims, it is intended that the claims be interpreted to reflect the full scope of the subject matter disclosed in the specification. Where the disclosure of subject matter in the specification is explicitly recited in the claims, it is intended that the claims be interpreted to reflect the full scope of the subject matter disclosed in the specification.

[0162] Those skilled in the art can understand that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of the present application. Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described systems, devices and units can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0163] The disclosed method, product (including but not limited to device, equipment, etc.) in the embodiments disclosed in the present document can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units can be merely a logical function division. In actual implementation, another division manner can be used. For example, a plurality of units or components can be combined or integrated into another system, or some features can be omitted or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms. The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the embodiments. In addition, the functional units in the embodiments of the present application can be integrated in one processing unit, or each unit can be a physical unit, or two or more units can be integrated in one unit.

[0164] The flowcharts and block diagrams in the drawings show the possible implementation architecture, function and operation of the system, method and computer program product according to the embodiments of the present application. In this regard, each block in the flowchart or block diagram can represent a module, program segment or part of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions noted in the blocks can occur in different orders than those noted in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes in reverse order, depending on the functions involved. Each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of special-purpose hardware and computer instructions.

Claims

1. A fresh air control method based on indoor and outdoor air quality, characterized in that, The method comprises the following steps: obtaining indoor detection data and outdoor detection data corresponding to each of at least two air quality indexes; determining a comprehensive relative air quality parameter corresponding to the at least two air quality indexes according to the indoor detection data and the outdoor detection data corresponding to each of the air quality indexes; the comprehensive relative air quality parameter is used to represent the advantages and disadvantages of outdoor air quality relative to indoor air quality; in the case that the comprehensive relative air quality parameter represents that the outdoor air quality is better than the indoor air quality, starting a fresh air device to ventilate the indoor and outdoor; wherein, determining the comprehensive relative air quality parameter corresponding to the at least two air quality indexes according to the indoor detection data and the outdoor detection data corresponding to each of the air quality indexes comprises: obtaining a relative air quality parameter corresponding to each of the at least two air quality indexes by the following way: for an air quality index, in the case that the outdoor detection data is more conducive to health than the indoor detection data, or in the case that the outdoor detection data is closer to a set value than the indoor detection data, or in the case that one of the outdoor detection data and the indoor detection data is less than the set value and the other is greater than the set value, taking a first preset value as the relative air quality parameter corresponding to the air quality index; in the case that the indoor detection data is more conducive to health than the outdoor detection data, or in the case that both the outdoor detection data and the indoor detection data are greater than or less than the set value and the indoor detection data is closer to the set value than the outdoor detection data, taking a second preset value as the relative air quality parameter corresponding to the air quality index; the first preset value and the second preset value are different in size; determining the comprehensive relative air quality parameter according to the relative air quality parameter corresponding to each of the air quality indexes; wherein, the advantages and disadvantages of the outdoor air quality and the indoor air quality are determined by the following way: in the case that the first preset value is greater than the second preset value, if the comprehensive relative air quality parameter is greater than a set threshold, it is determined that the outdoor air quality is better than the indoor air quality; if the comprehensive relative air quality parameter is less than or equal to the set threshold, it is determined that the outdoor air quality is worse than the indoor air quality; or, in the case that the first preset value is less than the second preset value, if the comprehensive relative air quality parameter is less than a set threshold, it is determined that the outdoor air quality is better than the indoor air quality; if the comprehensive relative air quality parameter is greater than or equal to the set threshold, it is determined that the outdoor air quality is worse than the indoor air quality.

2. The fresh air control method according to claim 1, characterized in that, determining the comprehensive relative air quality parameter according to the relative air quality parameter corresponding to each of the air quality indexes comprises: obtaining a weight sequence related to user demand; the weights in the weight sequence correspond to the air quality indexes one by one; calculating a weighted average / weighted sum of the relative air quality parameters corresponding to the at least two air quality indexes according to the weight sequence; taking the weighted average / weighted sum as the comprehensive relative air quality parameter.

3. The fresh air control method according to claim 2, wherein obtaining a weight sequence related to user demand comprises: obtaining a basic weight sequence; each weight in the basic weight sequence is the same, or the weight value in the basic weight sequence is positively correlated with the severity indicated by the average outdoor data of the air quality index corresponding to the weight; detecting adjustment of the basic weight sequence by a user; using the adjusted basic weight sequence as the final weight sequence.

4. The fresh air control method according to any one of claims 1 to 3, characterized in that, Further comprising: in the case that the comprehensive relative air quality parameter indicates that the outdoor air quality is worse than the indoor air quality, closing the fresh air device and stopping the ventilation between the indoor and outdoor.

5. The fresh air control method according to any one of claims 1 to 3, characterized in that, Further comprising: in the case that the comprehensive relative air quality parameter indicates that the outdoor air quality is worse than the indoor air quality, reminding the user; and / or, sending the indoor detection data and outdoor detection data corresponding to at least two air quality indexes to a mobile terminal, so that the mobile terminal displays the indoor detection data and outdoor detection data corresponding to at least two air quality indexes.

6. A fresh air control device based on indoor and outdoor air quality, characterized by, comprising: an obtaining module, configured to obtain indoor detection data and outdoor detection data corresponding to each air quality index in at least two air quality indexes; a determining module, configured to determine a comprehensive relative air quality parameter corresponding to at least two air quality indexes according to the indoor detection data and outdoor detection data corresponding to each air quality index; the comprehensive relative air quality parameter is used to indicate the advantage or disadvantage of the outdoor air quality relative to the indoor air quality; a first control module, configured to open the fresh air device and ventilate the indoor and outdoor in the case that the comprehensive relative air quality parameter indicates that the outdoor air quality is better than the indoor air quality; wherein the obtaining module is configured to obtain the relative air quality parameter corresponding to each air quality index in at least two air quality indexes by the following manner: for one air quality index, in the case that the outdoor detection data is more beneficial to the health than the indoor detection data, or in the case that the outdoor detection data is closer to the set value than the indoor detection data, or in the case that one of the outdoor detection data and indoor detection data is less than the set value and the other is greater than the set value, a first preset value is used as the relative air quality parameter corresponding to the one air quality index; in the case that the indoor detection data is more beneficial to the health than the outdoor detection data, or in the case that both the outdoor detection data and indoor detection data are greater than or less than the set value and the indoor detection data is closer to the set value than the outdoor detection data, a second preset value is used as the relative air quality parameter corresponding to the one air quality index; the first preset value and the second preset value are different in size; the determining unit is configured to determine the comprehensive relative air quality parameter according to the relative air quality parameter corresponding to each air quality index; wherein the advantage or disadvantage of the outdoor air quality relative to the indoor air quality is determined by the following manner: In the case that the first preset value is greater than the second preset value, if the comprehensive relative air quality parameter is greater than a set threshold, it is determined that the outdoor air quality is better than the indoor air quality; if the comprehensive relative air quality parameter is less than or equal to the set threshold, it is determined that the outdoor air quality is worse than the indoor air quality; or, In the case that the first preset value is less than the second preset value, if the comprehensive relative air quality parameter is less than a set threshold, it is determined that the outdoor air quality is better than the indoor air quality; if the comprehensive relative air quality parameter is greater than or equal to the set threshold, it is determined that the outdoor air quality is worse than the indoor air quality.

7. A fresh air control device based on indoor and outdoor air quality, comprising a processor and a memory having stored program instructions, characterized in that, The processor is configured to execute the program instructions to perform the method for controlling fresh air based on indoor and outdoor air quality as claimed in any one of claims 1 to 5.

8. A fresh air conditioner characterized by comprising: The device for controlling fresh air based on indoor and outdoor air quality as claimed in claim 6 or 7. The device for controlling fresh air based on indoor and outdoor air quality as claimed in claim 6 or 7.

Images