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: determining a relative air quality parameter corresponding to each air quality index according to indoor detection data and outdoor detection data corresponding to each air quality index; obtaining a weight sequence corresponding to a scene mode; calculating a weighted average value / weighted sum of the relative air quality parameters corresponding to at least two air quality indexes according to the weight sequence, and turning on a fresh air device in the case that a comparison result of the weighted average value / weighted sum and a set threshold value indicates that outdoor air quality is better than indoor air quality. The fresh air control method can adapt fresh air to a scene mode and provide better experience for a user in the scene mode. 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 device. BACKGROUND

[0002] Currently, a fresh air device is usually installed to adjust various air quality indicators (such as CO2 concentration, formaldehyde concentration, and PM2.5 concentration, etc.) 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, when the outdoor air quality is better than the 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 indoor 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. Correspondingly, the outdoor air quality can be determined by collecting outdoor 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 outdoor 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 modern smart home systems, different scene modes are usually set, such as sleep mode, wake-up mode, special care mode for some allergic people, etc. Using the prior art to determine the advantages and disadvantages of outdoor air quality and indoor air quality, and then providing fresh air, cannot easily meet the needs of different scene modes.

[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] The following presents a simplified summary of some aspects of the disclosure in order to provide a basic understanding. This summary is not an extensive overview of the disclosure and is not intended to identify key / critical elements or to delineate the scope of the disclosure. Its sole purpose is to present some aspects of the disclosure in a simplified form as a prelude to the more detailed description that is presented later.

[0008] The embodiments of the present application provide a fresh air control method based on indoor and outdoor air quality, so as to improve the matching degree of the fresh air introduced from the outdoor to the indoor and the scene mode, and further improve the user experience.

[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 relative air quality parameter corresponding to each of the air quality indexes according to the indoor detection data and the outdoor detection data corresponding to each of the air quality indexes; the relative air quality parameter corresponding to the air quality index is used to represent the result of judging the outdoor air quality relative to the indoor air quality with the air quality index as the standard; obtaining a weight sequence corresponding to the scene mode; the weight in the weight sequence corresponds to the air quality index one by one, and the size of the weight corresponding to the air quality index is positively correlated with the importance of the air quality index in the scene mode; 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, and in the case that the comparison result of the weighted average / sum and the set threshold value represents that the outdoor air quality is better than the indoor air quality, turning on the fresh air device to ventilate the indoor and outdoor.

[0010] Optionally, the determining of the relative air quality parameter corresponding to each of the air quality indexes according to the indoor detection data and the outdoor detection data corresponding to each of the air quality indexes comprises: for any 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 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 beneficial to the health than the outdoor detection data, or in the case that the indoor detection data and the outdoor detection data are both greater than or both 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; wherein the first preset value and the second preset value are different in size.

[0011] Optionally, the determining the relative air quality parameter corresponding to each air quality index according to the indoor detection data and the outdoor detection data corresponding to each air quality index further comprises: in the case that the outdoor detection data is the same as the outdoor detection data, taking a third preset value as the relative air quality parameter corresponding to the air quality index; the third preset value is an average of the first preset value and the second preset value.

[0012] Optionally, the determining the relative air quality parameter corresponding to each air quality index according to the indoor detection data and the outdoor detection data corresponding to each air quality index further comprises: 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, taking a fourth preset value as the relative air quality parameter corresponding to the air quality index; the fourth preset value is less than the second preset value, and a difference between the first preset value and the fourth preset value is more than twenty times of a difference between the first preset value and the second preset value.

[0013] Optionally, the determining the relative air quality parameter corresponding to each air quality index according to the indoor detection data and the outdoor detection data corresponding to each air quality index further comprises: 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, taking a fourth preset value as the relative air quality parameter corresponding to the air quality index; the fourth preset value is greater than the second preset value, and a difference between the fourth preset value and the first preset value is more than twenty times of a difference between the second preset value and the first preset value.

[0014] Optionally, the corresponding relationship between the comparison result and the result of whether the outdoor air quality is superior to or inferior to the indoor air quality comprises: in the case that the first preset value is greater than the second preset value, if the weighted average value / weighted sum is greater than the set threshold value, it is determined that the outdoor air quality is superior to the indoor air quality; if the weighted average value / weighted sum is less than or equal to the set threshold value, it is determined that the outdoor air quality is inferior to the indoor air quality.

[0015] Optionally, the corresponding relationship between the comparison result and the result of whether the outdoor air quality is superior to or inferior to the indoor air quality comprises: in the case that the first preset value is less than the second preset value, if the weighted average value / weighted sum is less than the set threshold value, it is determined that the outdoor air quality is superior to the indoor air quality; if the weighted average value / weighted sum is greater than or equal to the set threshold value, it is determined that the outdoor air quality is inferior to the indoor air quality.

[0016] Optionally, the obtaining the weight sequence corresponding to the scene mode comprises: obtaining a user body state suitable for the scene mode; determining a weight of each of the at least two air quality indexes according to a degree of adverse influence of the air quality index on the user body state; the degree of adverse influence of the air quality index on the user body state is positively correlated with the weight of the air quality index; and combining the weights of the at least two air quality indexes to form the weight sequence.

[0017] Optionally, the fresh air control method based on indoor and outdoor air quality further comprises: in a case where the comparison result of the weighted average value / weighted sum and the set threshold value indicates that the outdoor air quality parameter is worse than the indoor air quality parameter, closing the fresh air device and stopping the ventilation between the indoor and outdoor.

[0018] In some embodiments, the fresh air control device based on indoor and outdoor air quality comprises: a first obtaining module, a determining module, a second obtaining module and a first control module.

[0019] The first obtaining module is configured to obtain indoor detection data and outdoor detection data corresponding to each of the at least two air quality indexes; the determining module is configured to determine a relative air quality parameter corresponding to each of the at least two air quality indexes according to the indoor detection data and the outdoor detection data corresponding to the air quality index; the relative air quality parameter corresponding to the air quality index is used to indicate a relative advantage and disadvantage result of the outdoor air quality and the indoor air quality judged by taking the air quality index as a standard; the second obtaining module is configured to obtain a weight sequence corresponding to a scene mode; the weights in the weight sequence correspond to the air quality indexes one by one, and the size of the weight corresponding to the air quality index is positively correlated with the importance of the air quality index in the scene mode; and the first control module is configured to calculate a weighted average value / weighted sum of the relative air quality parameters corresponding to the at least two air quality indexes according to the weight sequence, and in a case where the comparison result of the weighted average value / weighted sum and a set threshold value indicates that the outdoor air quality is better than the indoor air quality, open the fresh air device to ventilate the indoor and outdoor.

[0020] 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 program instructions to perform the method based on indoor and outdoor air quality provided in the foregoing embodiments.

[0021] In some embodiments, the fresh air air conditioner comprises the fresh air control device based on indoor and outdoor air quality provided in the foregoing embodiments.

[0022] The method for controlling fresh air based on indoor and outdoor air quality provided in the embodiments of the present application can achieve the following technical effects:

[0023] Each of the at least two air quality indexes is determined to correspond to a relative air quality parameter, each of the relative air quality parameters representing a judgment result of the outdoor air quality relative to the indoor air quality in one dimension, and the importance of different air quality indexes to the scene mode is represented by a weight sequence, so that the weighted average value / weighted sum of the relative air quality parameters corresponding to the at least two air quality indexes calculated according to the weight sequence can represent the superiority of the outdoor air quality relative to the indoor air quality on the basis of meeting the judgment criteria corresponding to the scene mode, and then in the case that the comparison result of the weighted average value / weighted sum and the set threshold value represents that the outdoor air quality is superior to the indoor air quality, the fresh air device is started to introduce outdoor air with relatively superior air quality to the scene mode from the outdoor to the indoor, so that the fresh air is adapted to the scene mode and a better experience is provided for the user in the scene mode.

[0024] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0025] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, elements with the same reference numerals in the drawings are regarded as similar elements, and wherein:

[0026] Figure 1 is an implementation scene schematic diagram of a fresh air control method based on indoor and outdoor air quality provided by an embodiment of the present application;

[0027] Figure 2 is a flow schematic diagram of a fresh air control method based on indoor and outdoor air quality provided by an embodiment of the present application;

[0028] Figure 3 is a flow schematic diagram of a fresh air control method based on indoor and outdoor air quality provided by an embodiment of the present application;

[0029] Figure 4 is a flow schematic diagram of a fresh air control method based on indoor and outdoor air quality provided by an embodiment of the present application;

[0030] Figure 5 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;

[0031] Figure 6 is a schematic diagram of a fresh air device based on indoor and outdoor air quality provided by an embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to enable more detailed understanding of the features and technical contents 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.

[0033] The terms "first", "second", and the like in the specification and claims of the embodiments of the present application and the above 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, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0034] Unless otherwise specified, the term "a plurality of" means two or more.

[0035] 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.

[0036] The term "and / or" is a description of the association relationship 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.

[0037] Figure 1 is an implementation scenario diagram of a new air control method based on indoor and outdoor air quality provided by the embodiments of the present application.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] The outdoor humidity sensor 18 is arranged outdoors to detect outdoor humidity, and the indoor humidity sensor 19 is arranged indoors to detect indoor humidity.

[0043] Figure 1 The four types of sensors are arranged to obtain indoor detection data and outdoor detection data corresponding to the four types of air indicators. In specific applications, two or three types of the above-mentioned four types of sensors can also be arranged. Alternatively, sensors of other types than the sensor types shown in the figure can also be arranged, such as CO sensors, SO2 sensors, H2S sensors, natural gas sensors, and the like. 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 arranged to detect indoor detection data and outdoor detection data corresponding to two types of air quality indicators. Figure 1

[0044] In the embodiment of the present application, in the process of comparing outdoor air quality and indoor air quality, each air quality indicator is calculated so that each air quality indicator can be evaluated individually, and then a weight sequence is used to represent the importance of each air quality indicator to the scene mode. In different scene modes, the relative advantages and disadvantages of outdoor air quality and indoor air quality can be evaluated according to the advantages and disadvantages of the scene mode, so that the fresh air introduced from the outdoor to the indoor is adapted to the scene mode, and a better experience is provided for the user in the scene mode.

[0045] Figure 2 is a flowchart of a fresh air control method based on indoor and outdoor air quality provided by the 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.

[0046] In combination with the figure shown, Figure 2 The fresh air control method based on indoor and outdoor air quality includes:

[0047] S201, obtaining indoor detection data and outdoor detection data corresponding to each of at least two air quality indicators.

[0048] The air quality indicators 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.

[0049] Before executing the fresh air control method based on indoor and outdoor air quality, at least two air quality indicators have been determined in advance, which can be manually set by a user or set before the device is shipped from the factory.

[0050] ​Each air quality index corresponds to an indoor detection data and an 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 the PM2.5 sensor arranged indoors, and the outdoor detection data of PM2.5 concentration is obtained by detecting through the 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 the CO2 sensor arranged indoors, and the outdoor detection data of CO2 concentration is obtained by detecting through the CO2 sensor arranged outdoors. Here, only PM2.5 concentration and CO2 concentration are taken as air quality indexes, and the indoor detection data and the 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, the indoor detection data and the outdoor detection data corresponding to other air quality indexes can be obtained by the person skilled in the art according to the example.

[0051] S202, determining a relative air quality parameter corresponding to each air quality index according to the indoor detection data and the outdoor detection data corresponding to each air quality index.

[0052] The relative air quality parameter corresponding to the air quality index is used to represent the result of judging the outdoor air quality relative to the indoor air quality with the air quality index as the standard. For example, in the case of the air quality index being PM2.5 concentration, the relative air quality corresponding to the PM2.5 concentration is used to represent the result of judging the outdoor air quality relative to the indoor air quality with the PM2.5 concentration as the standard: if the outdoor PM2.5 concentration is higher than the indoor PM2.5 concentration, it means that the outdoor air quality is relatively poor relative to the indoor air quality, and if the outdoor PM2.5 concentration is lower than the indoor PM2.5 concentration, it means that the outdoor air quality is relatively good relative to the indoor air quality.

[0053] S203, obtaining a weight sequence corresponding to the scene mode.

[0054] The scene mode mostly refers to the scene mode in the smart home scene, such as sleep mode, wake-up mode, special care mode for some allergic people (such as rhinitis patients), etc.; of course, for some smart offices, the scene mode can also be the scene mode in the office scene, such as conference scene, shared negotiation area scene, reception scene, etc.

[0055] The weight in the weight sequence corresponds to the air quality index one by one, and the size of the weight corresponding to the air quality index is positively correlated with the importance of the air quality index in the scene mode.

[0056] The correspondence between the scene mode and the weight sequence can be pre-stored in a database in a one-to-one manner. After obtaining the scene mode, the corresponding weight sequence can be obtained by querying the database.

[0057] The importance of the air quality indicators in the scene mode can be specified by the user or automatically matched and recommended by big data or automatically calculated by an artificial intelligence algorithm.

[0058] S204, calculating the weighted average / sum of the relative air quality parameters corresponding to the at least two air quality indicators according to the weight sequence.

[0059] The product of the relative air quality parameter corresponding to each air quality indicator and the weight in the weight sequence corresponding to the air quality indicator is calculated, and the average / sum of all products is calculated, which is the weighted average / sum.

[0060] For example, the arrangement order of the multiple air quality indicators 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, 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, the product of the relative air quality parameter corresponding to the formaldehyde concentration and the fourth weight in the weight sequence is calculated, and the average / sum of all products is calculated.

[0061] S205, in the case that the comparison result of the weighted average / sum and the set threshold value indicates that the outdoor air quality is better than the indoor air quality, the fresh air device is turned on to ventilate the indoor and outdoor air.

[0062] The comparison result of the weighted average / sum and the set threshold value refers to the comparison result of the numerical value.

[0063] The set threshold value has a matching relationship with the aforementioned relative air quality parameter in terms of numerical value. For example, the number of air quality indicators is 4, and the value range of the relative air quality parameter is -1 to 1. When the weighted average value is used to represent the superiority or inferiority of the outdoor air quality relative to the indoor air quality, the value range of the set threshold value is between -1 and 1. When the weighted sum is used to represent the superiority or inferiority of the outdoor air quality relative to the indoor air quality, the value range of the set threshold value is between -4 and 4.

[0064] In a specific application, the case that the weighted average / sum is greater than the set threshold value can be determined as the case that the outdoor air quality is superior to the indoor air quality; of course, the case that the weighted average / sum is less than or equal to the set threshold value can also be determined as the case that the outdoor air quality is superior to the indoor air quality.

[0065] In the embodiments of the present application, a relative air quality parameter corresponding to each of the at least two air quality indexes is determined respectively, each of the relative air quality parameters representing a judgment result of the outdoor air quality relative to the indoor air quality in one dimension, and the importance of different air quality indexes to the scene mode is represented by a weight sequence, so that the weighted average / sum of the relative air quality parameters corresponding to the at least two air quality indexes calculated according to the weight sequence can represent the superiority of the outdoor air quality relative to the indoor air quality on the basis of meeting the judgment criteria corresponding to the scene mode, and then in the case that the comparison result of the weighted average / sum and the set threshold value represents that the outdoor air quality is superior to the indoor air quality, the fresh air device is started to introduce outdoor air with relatively superior air quality to the scene mode from the outdoor to the indoor, so that the fresh air is adapted to the scene mode and a better experience is provided for the user in the scene mode.

[0066] The following is an example of determining the relative air quality parameters of the air quality indexes according to the outdoor detection parameters and the indoor detection parameters.

[0067] Optionally, the optional scheme of determining the relative air quality parameters according to the indoor detection data and the outdoor detection data corresponding to each air quality index includes: for any 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 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; 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 indoor detection data and the outdoor detection data are both greater than 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.

[0068] The first preset value and the second preset value are different in size. Those 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 determined as the first preset value, and the number -1 can be determined as the second preset value; or the number 1 can be determined as the first preset value, and the number 0 can be determined as the second preset value; or the number 1 can be determined as the first preset value, and the number 2 can be determined as the second preset value.

[0069] The outdoor detection value is more beneficial to health, which means that the outdoor detection value is closer to the health value range or the comfort value range compared with the indoor detection value. For example, formaldehyde is harmful to the human body, and the outdoor detection value of the weighted concentration is usually less than the indoor detection value, which means that the outdoor detection value is more beneficial to health; for example, the human body suitable humidity is 30% to 60%, and 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 health. In the winter in northern China, the indoor humidity in the non-water area is usually 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 health.

[0070] The set value is a value set by the user for an air quality index, or a value obtained by the existing big data recommendation method or artificial intelligence calculation method that meets the needs of the scene mode and is beneficial to the user's comfort and health. 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 beneficial to the change of the indoor detection data in the direction of approaching the set value.

[0071] 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. The air introduced from the outdoor to the indoor is beneficial to the change of the indoor detection data in the direction of approaching the set value.

[0072] Optionally, the relative air quality parameter corresponding to each air quality index is determined according to the indoor detection data and the outdoor detection data corresponding to each air quality index, including: for any air quality index, in a case where the outdoor detection data is more conducive to health than the indoor detection data, or in a case where the outdoor detection data is closer to the set value than the indoor detection data, or in a case where 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; in a case where the indoor detection data is more conducive to health than the outdoor detection data, or in a case where 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; wherein the first preset value and the second preset value are different in size.

[0073] In a case where the outdoor detection data is the same as the outdoor detection data, a third preset value is taken as the relative air quality parameter corresponding to the air quality index; the third preset value is an average of the first preset value and the second preset value.

[0074] Optionally, the relative air quality parameter corresponding to each air quality index is determined according to the indoor detection data and the outdoor detection data corresponding to each air quality index, including: for any air quality index, in a case where the outdoor detection data is more conducive to health than the indoor detection data, or in a case where the outdoor detection data is closer to the set value than the indoor detection data, or in a case where 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; in a case where the indoor detection data is more conducive to health than the outdoor detection data, or in a case where 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; wherein the first preset value and the second preset value are different in size.

[0075] In a case where the first preset value is greater than the second preset value, for any air quality index, if the outdoor detection data belongs to a value range of serious pollution, a 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. The case of opening fresh air when a single air quality index is too bad is reduced.

[0076] 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 of the difference between the second preset value and the first preset value. The case that new air is still opened when a single air quality is too poor is reduced.

[0077] The value range of serious pollution is exemplarily illustrated below taking PM2.5 concentration as an example. The standards of PM2.5 concentration are as follows: 0-35 μg / m 3 belongs to excellent, 35-75 μg / m 3 belongs to good, 75-115 μg / m 3 belongs to light pollution, 115-150 μg / m 3 belongs to moderate pollution, 150-250 μg / m 3 belongs to severe pollution, 250 μg / m 3 belongs to serious pollution. In combination with the direct perception of air quality, 115 μg / m 3 above can be taken as the value range of serious pollution, 150 μg / m 3 above can be taken as the value range of serious pollution, and 250 μg / m 3 above can be taken as the value range of serious pollution.

[0078] The value range of serious pollution can be determined by those skilled in the art in combination with the common way of measuring air quality and the direct perception of air quality, which will not be described here.

[0079] Optionally, the determining the relative air quality parameter corresponding to each air quality index according to the indoor detection data and the outdoor detection data corresponding to each air quality index further comprises: obtaining a first type of air quality index and a second type of air quality index in the at least two air quality indexes in a case where the outdoor air quality corresponding to the air quality index is better than the indoor air quality (a case where the outdoor detection data is more conducive to the health of the human body than the indoor detection data, or, a case where the outdoor detection data is closer to the set value than the indoor detection data, or, a case where 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); for the first type of air quality index, taking a preset value related to the indoor detection data as the relative air quality parameter corresponding to the air quality index in the case where the outdoor air quality corresponding to the air quality index is better than the indoor air quality; and for the second type of air quality index, taking a first preset value as the relative air quality parameter corresponding to the air quality index in the case where the outdoor air quality corresponding to the air quality index is better than the indoor air quality.

[0080] The first type of air quality index is an air quality index affected by user activity, and the second type of air quality index is an air quality index other than the first type of air quality index in the at least two air quality indexes.

[0081] For example, in a sleep mode, the CO2 concentration of indoor air will increase over time, especially in the case of poor ventilation in the bedroom, the increase in the CO2 concentration of indoor air is more obvious.

[0082] 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.

[0083] Alternatively, the first type of air quality index is an air quality index that will pose a threat to 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 in the at least two air quality indexes.

[0084] For example, the formaldehyde concentration in indoor air will pose a threat to the health status of the human body, or for patients with rhinitis, PM2.5 in indoor air is easy to cause the symptoms to worsen.

[0085] 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.

[0086] Alternatively, the first type of air quality index is an air quality index affected by the user's activity and an air quality index that threatens the user's health status, and the second type of air quality index is at least one air quality index other than the first type of air quality index.

[0087] The preset value related to the indoor detection data and the first preset value are both greater than the second preset value, and 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 and the first preset value are both less than the second preset value, and the preset value related to the indoor detection data is less than or equal to the first preset value.

[0088] In the 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.

[0089] For example, taking the preset value related to the indoor detection data as the relative air quality parameter corresponding to the air quality index can include: obtaining a data range in which the indoor detection data is located; if the indoor detection data is in a first data range, taking a first preset value as the relative air quality parameter corresponding to the air quality index; if the indoor detection data is in a second data range, taking a fifth preset value 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 fifth preset value is greater than the first preset value; or the first preset value is less than the second preset value, and the fifth preset value is less than the first preset value.

[0090] 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.

[0091] 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 fifth 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 fifth preset value.

[0092] Alternatively, the preset value related to the indoor detection data corresponding to the relative air quality parameter of the air quality index as 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 used as the relative air quality parameter corresponding to the air quality index as the air quality index, and if the difference between the indoor detection data and the outdoor detection data is in a second data range, a fifth preset value is used as the relative air quality parameter corresponding to the air quality index as 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 fifth preset value; or the first preset value is greater than the second preset value, the second preset value is greater than the fifth preset value.

[0093] 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.

[0094] 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 preset value is used as the relative air quality parameter corresponding to the air quality index as the air quality index, the second preset value is less than the first preset value, the first preset value is less than the above-mentioned one preset value, and the above-mentioned one preset value is less than the fifth preset value, or the second preset value is greater than the first preset value, the first preset value is greater than the above-mentioned one preset value, and the above-mentioned one preset value is greater than the fifth preset value.

[0095] For any air quality index, in the case that 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 judge whether to start the fresh air device, the result is inclined to allow starting the fresh air device. 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, so that 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, and then in the case that the outdoor air quality corresponding to the first type of air quality index is better than the indoor air quality, the indoor fresh air is started in time to better maintain the health of the user.

[0096] In the foregoing embodiments, the case that the weighted average / weighted sum is greater than the set threshold value can be determined as the case that the outdoor air quality is superior to the indoor air quality; the case that the weighted average / weighted sum is less than or equal to the set threshold value can also be determined as the case that the outdoor air quality is superior to the indoor air quality.

[0097] The following illustrates the correspondence between the comparison result of the weighted average / weighted sum and the set threshold value and the superior-inferior result of the outdoor air quality relative to the indoor air quality.

[0098] Optionally, the correspondence between the comparison result and the superior-inferior result of the outdoor air quality relative to the indoor air quality includes: 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 taking the number -1 as the second preset value, or taking the number 1 as the first preset value and taking the number 0 as the second preset value, if the weighted average / weighted sum is greater than the set threshold value, it is determined that the outdoor air quality is superior to the indoor air quality; if the weighted average / weighted sum is less than or equal to the set threshold value, it is determined that the outdoor air quality is inferior to the indoor air quality.

[0099] In the case that the first preset value is greater than the second preset value, the set threshold value is determined according to the 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 value; or, the average of the first preset value and the second preset value is calculated, and the sum of the average and the first increase coefficient is taken as the set threshold value; or, the average of the first preset value and the second preset value is calculated, and the difference obtained by subtracting the first decrease coefficient from the average is taken as the set threshold value. Or,

[0100] The average of the first preset value and the second preset value is calculated, and the product of the average and the number of air quality indexes is taken as the set threshold value; or, the product and the first increase coefficient are summed to obtain the set threshold value; or, the product is subtracted by the first decrease coefficient to obtain the difference, and the difference is taken as the set threshold value.

[0101] The first increase coefficient reflects the superior-inferior of the fresh air quality required by the user; the greater the superior-inferior of the fresh air quality required by the user, the greater the first increase coefficient, and the higher the degree that the outdoor air quality is superior to the indoor air quality in the whole in the case that the fresh air device is turned on. The first decrease coefficient reflects the high-low of the fresh air ventilation frequency required by the user; the more the user is used to ventilating fresh air into the room, the greater the first decrease coefficient, but the lower the degree that the outdoor air quality is superior to the indoor air quality in the whole in the case that the fresh air device is turned on.

[0102] The set threshold determined by the first increasing coefficient can meet the user's demand for fresh air quality, and the set threshold determined by the first decreasing coefficient can meet the user's demand for high-frequency fresh air.

[0103] Alternatively, the corresponding relationship between the comparison result and the superiority or inferiority of the outdoor air quality relative to the indoor air quality includes: in the case where the first preset value is less than the second preset value, for example, taking the number 1 as the first preset value and taking the number 2 as the second preset value, if the weighted average value / weighted sum is less than the set threshold, it is determined that the outdoor air quality is superior to the indoor air quality; and if the weighted average value / weighted sum is greater than or equal to the set threshold, it is determined that the outdoor air quality is inferior to the indoor air quality.

[0104] Similarly, in the case where the first preset value is less than the second preset value, the set threshold is determined according to the 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, the average of the first preset value and the second preset value is calculated, and the difference between the average and the second decreasing coefficient is taken as the set threshold; or, the average of the first preset value and the second preset value is calculated, and the sum of the average and the second increasing coefficient is taken as the set threshold. Alternatively,

[0105] The average of the first preset value and the second preset value is calculated, and the product of the average and the number of air quality indexes is taken as the set threshold; or, the product is taken as the set threshold; or, the product is taken as the set threshold.

[0106] The second decreasing coefficient reflects the user's demand for the superiority or inferiority of fresh air quality, and the greater the user's demand for the superiority of fresh air quality, the greater the second decreasing coefficient, and the higher the degree to which the outdoor air quality is superior to the indoor air quality as a whole in the case where the fresh air device is turned on. The second increasing coefficient reflects the user's demand for the frequency of fresh air ventilation, and the greater the user's habit of ventilating fresh air into the room, the greater the second increasing coefficient, but the lower the degree to which the outdoor air quality is superior to the indoor air quality as a whole in the case where the fresh air device is turned on.

[0107] The set threshold determined by the second decreasing coefficient can meet the user's demand for fresh air quality, and the set threshold determined by the second increasing coefficient can meet the user's demand for high-frequency fresh air. After adopting the above technical solution for determining the set threshold, different users' different demands can be met.

[0108] In the above 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 and the first preset value are both greater than the second preset value, and 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 and the first preset value are both less than the second 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 and the first preset value are both greater than the second 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 and the first preset value are both less than the second 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, so as to improve 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 then the frequency of starting the fresh air device is improved, and the user's health is better maintained.

[0109] Figure 3 FIG. 1 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.

[0110] S301, obtaining indoor detection data and outdoor detection data corresponding to each of at least two air quality indexes.

[0111] S302, determining a relative air quality parameter corresponding to each of the air quality indexes according to the indoor detection data and the outdoor detection data corresponding to each of the air quality indexes.

[0112] The relative air quality parameter corresponding to the air quality index is used to represent the result of judging the outdoor air quality relative to the indoor air quality with the air quality index as the standard.

[0113] S303, obtaining a user body state suitable for a scene mode.

[0114] The user body state includes a user body state in a life scene, for example, in a sleep scene, the user is in a sleep state, at this time, the immunity is the lowest, that is, the user body state suitable for the sleep scene is the sleep state, and the immunity is low.

[0115] The user body state further includes a user health state. For example, a part of a rhinitis patient has a higher requirement for air cleanliness, that is, the user body state suitable for the health mode (one of the special care modes for allergic personnel) of the rhinitis patient is a rhinitis attack, and the requirement for air cleanliness is high.

[0116] The scene mode and the user body state suitable for the scene mode can be stored in a database in the form of a one-to-one correspondence data table, and the user body state suitable for the scene mode can be obtained by querying the database.

[0117] S304, determining the weight of each of the at least two air quality indexes according to the degree of adverse influence of the air quality index on the user body state.

[0118] The degree of adverse influence of the air quality index on the user body state is positively correlated with the weight of the air quality index. The influence of each air quality index on the user body state can be evaluated according to medical knowledge or medical experience, and then the degree of adverse influence of each air quality index on the user body state can be quantified, and finally the weight of each of the at least two air quality indexes can be determined.

[0119] For example, in the sleep scene, each system of the user's body is in a relaxed state, and the immunity in the sleep state is lower than that in the wakeful state. In addition, the overall indoor air quality usually affects the quality of the user's sleep. On this basis, according to experience, it can be considered that the degrees of adverse influence of several air quality indexes on the user body state are equivalent. Taking air quality indexes including formaldehyde concentration, PM2.5 concentration, CO2 concentration and relative humidity as examples, in the sleep scene, the weight of formaldehyde can be 0.25, the weight of PM2.5 concentration can be 0.25, the weight of CO2 concentration can be 0.25, and the weight of relative humidity can be 0.25. The above analysis of the sleep scene and the enumeration of several air quality indexes and their weights in the sleep scene are only exemplary descriptions. In a specific use scene, a person skilled in the art should select appropriate air quality indexes in the sleep scene based on certain medical knowledge and experience, evaluate the influence of each air quality index on the user body state in the sleep state, and then quantify the degree of adverse influence of each air quality index on the user body state in the sleep mode.

[0120] In the special care mode for some allergic personnel, for example, the health mode of rhinitis patients, the weight of the air quality index that can easily affect the nasal cavity (such as irritation, blockage, etc.) can be set to a relatively large value after the onset of rhinitis in the user, and the weight of the air quality index that is not easy to affect the nasal cavity can be set to a relatively small value. Similarly, taking the air quality indexes including formaldehyde concentration, PM2.5 concentration, CO2 concentration and relative humidity as examples, in the health mode of rhinitis patients, it can be considered that the adverse effects of formaldehyde concentration and PM2.5 concentration on the nasal cavity are greater, and the weights of formaldehyde concentration and PM2.5 concentration are set to be larger; it can be considered that the adverse effects of CO2 concentration and relative humidity on the nasal cavity are smaller, and the weights of CO2 concentration and relative humidity are set to be relatively smaller, and the effect of relative humidity is usually greater than that of CO2 concentration on the nasal cavity. For example, the weight of formaldehyde concentration can be 0.35, the weight of PM2.5 concentration can be 0.35, the weight of CO2 concentration can be 0.1, and the weight of relative humidity can be 0.2. The above analysis of the health mode of rhinitis patients and the listed several air quality indexes and weights are only exemplary. In specific applications, for the health mode of rhinitis patients, the person skilled in the art needs to analyze the rhinitis of the patient based on certain medical knowledge and experience, determine the type of rhinitis of the patient, and then select appropriate air quality indexes according to the type of rhinitis of the user, evaluate the influence of each air quality index on the type of rhinitis, and then quantify the degree of adverse effect of each air quality index on the physical state of the rhinitis user.

[0121] S305, the weights of the at least two air quality indexes are combined to form a weight sequence.

[0122] S306, a weighted average / sum of the relative air quality parameters corresponding to the at least two air quality indexes is calculated according to the weight sequence.

[0123] S307, in the case that the comparison result of the weighted average / sum and the set threshold value indicates that the outdoor air quality is better than the indoor air quality, the fresh air device is started to ventilate the indoor and outdoor air.

[0124] In the above embodiments, in the case that the scene mode is different and the physical state of the user is different, even if the types of air quality indexes are the same, different weighted averages / sums can be calculated, so that the evaluation index of the evaluation of the outdoor air quality relative to the indoor air quality is matched with the physical state of the user, which is beneficial to the introduction of the outdoor air with the physical state of the user into the indoor, the update of the indoor air, the improvement of the indoor air quality, and the provision of a better experience for the user in the scene mode.

[0125] Figure 4is 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.

[0126] In combination Figure 4 As shown in the figure, the fresh air control method based on indoor and outdoor air quality includes the following steps.

[0127] S401, obtaining indoor detection data and outdoor detection data corresponding to each air quality index in at least two air quality indexes.

[0128] S402, determining a relative air quality parameter corresponding to each air quality index according to the indoor detection data and the outdoor detection data corresponding to each air quality index.

[0129] The relative air quality parameter corresponding to the air quality index is used to represent the relative advantages and disadvantages of outdoor air quality relative to indoor air quality as judged by the air quality index as the standard.

[0130] S403, obtaining a weight sequence corresponding to the scene mode.

[0131] The weights in the weight sequence correspond one-to-one to the air quality indexes, and the size of the weight corresponding to the air quality index is positively correlated with the importance of the air quality index in the scene mode.

[0132] S404, 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.

[0133] S405, in the case where the comparison result of the weighted average / weighted sum and the set threshold value indicates that the outdoor air quality is better than the indoor air quality, turning on the fresh air device to ventilate the indoor and outdoor air.

[0134] S406, in the case where the comparison result of the weighted average / weighted sum and the set threshold value indicates that the outdoor air quality parameter is worse than the indoor air quality parameter, turning off the fresh air device to stop ventilating the indoor and outdoor air.

[0135] In the case where the comparison result of the weighted average / weighted sum and the set threshold value indicates that the outdoor air quality is worse than the indoor air quality, the fresh air device is turned off to reduce or avoid the entry of outdoor air with relatively poor air quality into the indoor air; in the case where the comparison result of the weighted average / weighted sum and the set threshold value indicates that the outdoor air quality is better than the indoor air quality, the fresh air device is turned on again to ventilate the indoor and outdoor air, complete the update of the indoor air, and achieve the effect of freshening the indoor air.

[0136] Figure 5Fig. 1 is a schematic diagram of a fresh air control device based on indoor and outdoor air quality according to an embodiment of the present application. The fresh air control device based on indoor and outdoor air quality can be implemented in the form of software, hardware, or a combination of both.

[0137] In combination Figure 5 As shown in Fig. 1, the fresh air control device based on indoor and outdoor air quality comprises a first obtaining module 51, a determining module 52, a second obtaining module 53, and a first control module 54.

[0138] The first obtaining module 51 is configured to obtain indoor detection data and outdoor detection data corresponding to each of at least two air quality indexes.

[0139] The determining module 52 is configured to determine a relative air quality parameter corresponding to each of 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 relative air quality parameter corresponding to each of the at least two air quality indexes is used to represent a result of judging the outdoor air quality relative to the indoor air quality with the air quality index as a standard.

[0140] The second obtaining module 53 is configured to obtain a weight sequence corresponding to a scene mode. The weights in the weight sequence correspond to the air quality indexes one by one, and the size of the weight corresponding to the air quality index is positively correlated with the importance of the air quality index in the scene mode.

[0141] The first control module 54 is configured to calculate a weighted average value / weighted sum of the relative air quality parameters corresponding to the at least two air quality indexes according to the weight sequence, and to turn on a fresh air device to ventilate the indoor and outdoor air when a comparison result of the weighted average value / weighted sum and a set threshold value indicates that the outdoor air quality is better than the indoor air quality.

[0142] Optionally, the determining module 52 comprises a first determining unit or a second determining unit.

[0143] The first determining unit is configured to, for any air quality index, take a first preset value as the relative air quality parameter corresponding to the air quality index in a case where the outdoor detection data is more beneficial to health than the indoor detection data, or in a case where the outdoor detection data is closer to a set value than the indoor detection data, or in a case where 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.

[0144] The second determining unit is configured to, in a case where the indoor detection data is more beneficial to health than the outdoor detection data, or in a case where both the indoor detection data and the outdoor detection data are greater than the set value or are less than the set value and the indoor detection data is closer to the set value than the outdoor detection data, take a second preset value as the relative air quality parameter corresponding to the air quality index.

[0145] wherein the first preset value and the second preset value are different in size.

[0146] Optionally, the determining module 52 further comprises a third determining unit; the third determining unit is configured to determine a third preset value as the relative air quality parameter corresponding to the air quality index in the case that the outdoor detection data is the same as the outdoor detection data; the third preset value is an average of the first preset value and the second preset value.

[0147] Optionally, the determining module 52 further comprises a fourth determining unit or a fifth determining unit.

[0148] The fourth determining unit is configured to, in the case that the first preset value is greater than the second preset value, determine a fourth preset value as the relative air quality parameter corresponding to the air quality index in the case that the outdoor detection data belongs to the value range of serious pollution; the fourth preset value is less than the second preset value, and a difference between the first preset value and the fourth preset value is more than twenty times of a difference between the first preset value and the second preset value.

[0149] The fifth determining unit is configured to, in the case that the first preset value is less than the second preset value, determine a fourth preset value as the relative air quality parameter corresponding to the air quality index in the case that the outdoor detection data belongs to the value range of serious pollution; the fourth preset value is greater than the second preset value, and a difference between the fourth preset value and the first preset value is more than twenty times of a difference between the second preset value and the first preset value.

[0150] Optionally, the first control module 54 comprises a sixth determining unit or a seventh determining unit.

[0151] The sixth determining unit is configured to, in the case that the first preset value is greater than the second preset value, determine that the outdoor air quality is better than the indoor air quality in the case that the weighted average value / weighted sum is greater than a set threshold; and determine that the outdoor air quality is worse than the indoor air quality in the case that the weighted average value / weighted sum is less than or equal to the set threshold.

[0152] The seventh determining unit is configured to, in the case that the first preset value is less than the second preset value, determine that the outdoor air quality is better than the indoor air quality in the case that the weighted average value / weighted sum is less than a set threshold; and determine that the outdoor air quality is worse than the indoor air quality in the case that the weighted average value / weighted sum is greater than or equal to the set threshold.

[0153] Optionally, the second obtaining module 53 comprises an obtaining unit, an eighth determining unit and a composing unit.

[0154] The obtaining unit is configured to obtain a user body state suitable for the scene mode.

[0155] The eighth determining unit is configured to determine a weight of each of the at least two air quality indexes according to a degree of adverse effect of the air quality index on the user's physical state, and the degree of adverse effect of the air quality index on the user's physical state is positively correlated with the weight of the air quality index.

[0156] The composing unit is configured to compose the weights of the at least two air quality indexes into a weight sequence.

[0157] Optionally, the fresh air control method based on indoor and outdoor air quality further comprises a second control module configured to, in a case where the comparison result of the weighted average value / weighted sum and the set threshold value indicates that the outdoor air quality parameter is worse than the indoor air quality parameter, turn off the fresh air device and stop the indoor and outdoor ventilation.

[0158] 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 fresh air control method based on indoor and outdoor air quality provided by the foregoing embodiments when executing the program instructions.

[0159] Figure 6 FIG. 1 is a schematic diagram of a fresh air device based on indoor and outdoor air quality provided by an embodiment of the present application. As shown in FIG. 1, the fresh air control device based on indoor and outdoor air quality comprises: Figure 6

[0160] The processor 61 and the memory 62 can further comprise a communication interface 63 and a bus 64. The processor 61, the communication interface 63 and the memory 62 can complete mutual communication through the bus 64. The communication interface 63 can be used for information transmission. The processor 61 can invoke the logical instructions in the memory 62 to execute the fresh air control method based on indoor and outdoor air quality provided by the foregoing embodiments.

[0161] In addition, the logical instructions in the memory 62 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.

[0162] The memory 62 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 61 executes the functions and data processing by running the software programs, instructions and modules stored in the memory 62, that is, implements the method in the foregoing method embodiments.

[0163] ​The memory 62 can include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application program required by at least one function; and the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 62 can include a high-speed random access memory, and can also include a nonvolatile memory.

[0164] The embodiment of the present application provides a fresh air conditioner, comprising the fresh air control device based on indoor and outdoor air quality provided in the foregoing embodiment.

[0165] The embodiment of the present application provides a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are configured to execute the fresh air control method based on indoor and outdoor air quality provided in the foregoing embodiment.

[0166] The embodiment of the present application provides a computer program product, which comprises a computer program stored on a computer readable storage medium, and 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 in the foregoing embodiment.

[0167] The computer readable storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0168] The technical solution 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 make a computer device (which can be a personal computer, a server, or a network device, etc.) 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 (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and various media that can store program codes, or can be a transitory storage medium.

[0169] 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 with 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. The term "consisting of" is intended to mean "including and limited to" such that the scope of embodiments only encompasses the elements recited. The term "consisting essentially of" is intended to mean "including at least the recited elements, and any additional elements that do not materially change the basic and novel characteristics of the claimed application." Other embodiments can be understood and effected by those skilled in the art in practicing the claims.

[0170] 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.

[0171] 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.

[0172] 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 the at least two air quality indexes; determining a relative air quality parameter corresponding to each of 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 relative air quality parameter corresponding to each of the at least two air quality indexes is used to represent the relative relationship between outdoor air quality and indoor air quality determined by the air quality index as a standard; obtaining a weight sequence corresponding to the scene mode; the weights in the weight sequence correspond to the at least two air quality indexes one by one, and the size of the weight corresponding to each of the at least two air quality indexes is positively correlated with the importance of the air quality index in the scene mode; 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 starting the fresh air device to ventilate the indoor and outdoor air when the comparison result of the weighted average / sum and the set threshold value represents that the outdoor air quality is better than the indoor air quality.

2. The fresh air control method according to claim 1, characterized in that, The method for determining the relative air quality parameter corresponding to each of 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 the following steps: for any air quality index, if the outdoor detection data is more conducive to health 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 conducive to health than the outdoor detection data, or if 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 air quality index; wherein the first preset value and the second preset value are different in size.

3. The fresh air control method according to claim 2, characterized in that, The method for determining the relative air quality parameter corresponding to each of 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 further comprises the following steps: if the outdoor detection data is the same as the outdoor detection data, a third preset value is taken as the relative air quality parameter corresponding to the air quality index; the third preset value is the average of the first preset value and the second preset value.

4. The fresh air control method according to claim 2, wherein The method for determining the relative air quality parameter corresponding to each of 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 further comprises the following steps: if the first preset value is greater than the second preset value, for any air quality index, if the outdoor detection data belongs to a seriously polluted value range, a fourth preset value is taken as the relative air quality parameter corresponding to the air quality index; 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. 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, and the difference between the fourth preset value and the first preset value is more than twenty times of the difference between the second preset value and the first preset value.

5. The fresh air control method according to claim 2, wherein The corresponding relationship between the comparison result and the relative results of the outdoor air quality and the indoor air quality includes: In the case that the first preset value is greater than the second preset value, if the weighted average value / weighted sum is greater than the set threshold, it is determined that the outdoor air quality is better than the indoor air quality; if the weighted average value / weighted sum 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 weighted average value / weighted sum is less than the set threshold, it is determined that the outdoor air quality is better than the indoor air quality; if the weighted average value / weighted sum is greater than or equal to the set threshold, it is determined that the outdoor air quality is worse than the indoor air quality.

6. The fresh air control method according to claim 1, wherein Obtaining a weight sequence corresponding to a scene mode includes: Obtaining a user body state suitable for the scene mode; Determining the weight of each air quality index in the at least two air quality indexes according to the degree of adverse effect of the air quality index on the user body state; the degree of adverse effect of the air quality index on the user body state is positively correlated with the weight of the air quality index; Assembling the weights of the at least two air quality indexes into the weight sequence.

7. The fresh air control method according to any one of claims 1 to 6, characterized in that, Further including: In the case that the comparison result of the weighted average value / weighted sum and the set threshold indicates that the outdoor air quality parameter is worse than the indoor air quality parameter, closing the fresh air device and stopping the ventilation between the indoor and the outdoor.

8. A fresh air control device based on indoor and outdoor air quality, characterized by, Including: A first obtaining module is configured to obtain indoor detection data and outdoor detection data corresponding to each air quality index in the at least two air quality indexes; A determining module is configured to determine a relative air quality parameter corresponding to each air quality index according to the indoor detection data and the outdoor detection data corresponding to the air quality index; The relative air quality parameter corresponding to the air quality index is used to indicate the relative results of the outdoor air quality and the indoor air quality determined by taking the air quality index as a standard; A second obtaining module is configured to obtain a weight sequence corresponding to a scene mode; The weights in the weight sequence are one-to-one corresponding to the air quality indexes, and the size of the weight corresponding to the air quality index is positively correlated with the importance of the air quality index in the scene mode; A first control module is configured to calculate a weighted average value / weighted sum of the relative air quality parameters corresponding to the at least two air quality indexes according to the weight sequence, and in the case that the comparison result of the weighted average value / weighted sum and a set threshold indicates that the outdoor air quality is better than the indoor air quality, opening a fresh air device to ventilate the indoor and the outdoor.

9. 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, when executing the program instructions, perform the method of controlling fresh air based on indoor and outdoor air quality as claimed in any one of claims 1 to 7.

10. A fresh air conditioner characterized by comprising: The apparatus for controlling fresh air based on indoor and outdoor air quality as claimed in claim 8 or 9 is included.

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