Fresh air conditioner, fresh air function control method thereof and electronic equipment

Abstract

The invention belongs to the technical field of smart home, and provides a fresh air conditioner, a fresh air function control method thereof and electronic equipment. The method comprises the steps that the carbon dioxide concentration is obtained, and the carbon dioxide concentration refers to the carbon dioxide concentration within the air supply range of the fresh air conditioner; under the condition that the carbon dioxide concentration is larger than a preset carbon dioxide concentration threshold value, the fresh air function is operated; and in the process of operating the fresh air function, the air supply gear of the fresh air function is adjusted according to the indoor temperature change condition. By means of the method, the carbon dioxide concentration can be adjusted in time, meanwhile, indoor temperature changes are considered, and human body discomfort is avoided.

Description

Technical Field

[0001] The present application belongs to the field of smart home technology, and in particular, relates to a fresh air air conditioner and a control method and electronic device for its fresh air function. Background Art

[0002] In the fierce competition in the household air conditioning market, fresh air air conditioners are favored by consumers because they can achieve indoor and outdoor air exchange. However, although fresh air air conditioners provide air renewal functions, the intelligence level of their fresh air functions still needs to be improved, especially in terms of fresh air volume control and automatic start and stop of the fresh air function.

[0003] Currently, the fresh air function of most fresh air air conditioners relies on manual operation by the user and lacks the ability to automatically adjust according to changes in the indoor environment. This leads to a major problem: when the user feels the need for fresh air and turns on the fresh air function, the indoor carbon dioxide concentration may have risen to an unhealthy level. In addition, in the process of introducing fresh air, there are problems that affect the user's comfort experience. Summary of the invention

[0004] Based on this, it is necessary to provide a fresh air air conditioner and a control method and electronic device for its fresh air function to address the above technical problems.

[0005] In a first aspect, the present application provides a method for controlling a fresh air function of a fresh air air conditioner, the method comprising:

[0006] Obtaining a carbon dioxide concentration, where the carbon dioxide concentration refers to a carbon dioxide concentration within an air supply range of the fresh air air conditioner;

[0007] When the carbon dioxide concentration is greater than a preset carbon dioxide concentration threshold, operating the fresh air function;

[0008] During operation of the fresh air function, the air supply level of the fresh air function is adjusted according to changes in indoor temperature.

[0009] In some practicable ways, obtaining the carbon dioxide concentration includes:

[0010] When the fresh air function is not running, determining the carbon dioxide concentration based on the change in the number of organisms within the air supply range of the fresh air air conditioner;

[0011] When the fresh air function is running, the carbon dioxide concentration is determined based on changes in the number of organisms within the air supply range of the fresh air air conditioner and the air supply level of the fresh air function.

[0012] In some practicable ways, the determining of the carbon dioxide concentration based on the change in the number of organisms within the air supply range of the fresh air air conditioner includes:

[0013] Determine the biological growth concentration of carbon dioxide according to the number of organisms within the air supply range of the fresh air air conditioner, the biological mean of the carbon dioxide growth rate, and the biological residence time;

[0014] The carbon dioxide concentration is calculated based on the baseline concentration of carbon dioxide, combined with the naturally reduced concentration of carbon dioxide and the biologically increased concentration of carbon dioxide.

[0015] In some practicable manners, the determination of the carbon dioxide concentration based on the change in the number of organisms within the air supply range of the fresh air air conditioner and the air supply level of the fresh air function includes:

[0016] Determine the biological growth concentration of carbon dioxide according to the number of organisms within the air supply range of the fresh air air conditioner, the biological mean of the carbon dioxide growth rate, and the biological residence time;

[0017] Determining the passive reduction concentration of carbon dioxide according to the air supply gear, the rate of reduction of carbon dioxide concentration corresponding to the air supply gear, and the duration of maintaining the air supply gear;

[0018] The carbon dioxide concentration is calculated based on the baseline concentration of carbon dioxide, the naturally reduced concentration of carbon dioxide, the biologically increased concentration of carbon dioxide and the passively reduced concentration of carbon dioxide.

[0019] In some practicable methods, obtaining the carbon dioxide concentration includes:

[0020] The carbon dioxide concentration is obtained in response to the first appearance of a person within the air supply range.

[0021] In some practicable embodiments, the indoor temperature change includes the indoor temperature difference before and after the fresh air function runs at the current air supply gear for a set time, and / or the indoor and outdoor temperature difference after the fresh air function runs at the current air supply gear for a set time;

[0022] In some practicable manners, during the operation of the fresh air function, adjusting the air supply level of the fresh air function according to the indoor temperature change includes:

[0023] After the fresh air function is operated at the current air supply gear for a first set time, a target temperature difference is obtained, where the target temperature difference is at least one of the indoor temperature difference and the indoor and outdoor temperature difference;

[0024] When the target temperature difference meets the set condition, lowering the air supply gear;

[0025] After the fresh air function runs at the reduced air supply level for a second set time period, the target temperature difference is obtained again.

[0026] In some embodiments, the method further comprises:

[0027] When the target temperature difference does not satisfy the set condition, the air supply level is adjusted according to the relationship between the current carbon dioxide concentration and the carbon dioxide concentration threshold.

[0028] In some practicable manners, adjusting the air supply level according to the relationship between the current carbon dioxide concentration and the carbon dioxide concentration threshold value includes:

[0029] If the current carbon dioxide concentration is greater than or equal to the carbon dioxide concentration threshold, the air supply gear is increased, and after the fresh air function runs at the increased air supply gear for a third set time, the target temperature difference is re-acquired; or,

[0030] If the current carbon dioxide concentration is less than the carbon dioxide concentration threshold, the air supply gear is maintained unchanged and runs for a fourth set time period.

[0031] In some practicable manners, the target temperature difference satisfies a set condition, including:

[0032] When the target temperature difference is the indoor temperature difference, the indoor temperature difference is greater than a first temperature difference threshold;

[0033] When the target temperature difference is the indoor and outdoor temperature difference, the indoor and outdoor temperature difference is greater than a second temperature difference threshold;

[0034] When the target temperature difference is the indoor temperature difference and the indoor-outdoor temperature difference, the indoor temperature difference is greater than the first temperature difference threshold and the indoor-outdoor temperature difference is greater than the second temperature difference threshold.

[0035] In a second aspect, the present application provides an electronic device, comprising a memory for storing computer instructions; and a processor for calling and executing the computer instructions to implement the method provided in the first aspect.

[0036] In a third aspect, the present application provides a fresh air air conditioner, which includes a fresh air introduction mechanism for introducing outdoor air into indoor space, and the fresh air air conditioner adopts the method described in the first aspect, or the fresh air air conditioner has the electronic device described in the second aspect.

[0037] In some practicable embodiments, the fresh air air conditioner further comprises a biological monitoring unit for monitoring changes in the number of living organisms in the fresh air air conditioner;

[0038] The first temperature sensing package is used to monitor the indoor temperature;

[0039] The second temperature sensing package is used to monitor the outdoor temperature.

[0040] In a fourth aspect, the present application provides a control device for a fresh air function of a fresh air air conditioner, the device comprising:

[0041] The fresh air air conditioner body is arranged at the use site and connects the use site with the fresh air area, and has an air supply range and an air supply gear, and is used to monitor the carbon dioxide concentration in the air supply range, and adjust the air supply gear according to the carbon dioxide concentration to supply the fresh air in the fresh air area to the air supply range;

[0042] A biological monitoring unit, used to monitor living organisms within the air supply range, and to generate a first biological signal, which is sent to the fresh air air conditioner body;

[0043] A first temperature sensing package is used to monitor the temperature within the air supply range and generate a first temperature signal, which is sent to the fresh air air conditioner body;

[0044] The second temperature sensing package is used to monitor the temperature of the fresh air area and form a second temperature signal, which is sent to the fresh air air conditioner body; wherein,

[0045] The fresh air air conditioner body is connected to the biological monitoring unit, the first temperature sensing package and the second temperature sensing package respectively;

[0046] The fresh air air conditioner body monitors the current carbon dioxide concentration within the air supply range in response to the first biological signal:

[0047] If the current carbon dioxide concentration is greater than or equal to the preset carbon dioxide concentration threshold, the fresh air air conditioner body adjusts the air supply gear to supply air to the air supply range; wherein,

[0048] The fresh air air conditioner body responds to the temperature information carried by the first temperature signal and the temperature information carried by the second temperature signal, and adjusts the air supply gear according to a preset temperature change rule.

[0049] In some implementations, the biological monitoring unit includes a millimeter wave radar.

[0050] In a fifth aspect, the present application provides a method for controlling a fresh air function of a fresh air air conditioner, which is applied to the control system of the fresh air function of the fresh air air conditioner described above, and the method comprises:

[0051] At a first time, according to the first biological signal, the carbon dioxide concentration in the air supply range is obtained to obtain the current carbon dioxide concentration, wherein the first time represents the current time;

[0052] The current carbon dioxide concentration is compared with a preset carbon dioxide concentration threshold to obtain a first comparison result:

[0053] If the first comparison result is that the current carbon dioxide concentration is greater than or equal to the carbon dioxide concentration threshold, adjusting the air supply gear;

[0054] Obtaining temperature information carried by the first temperature signal and temperature information carried by the second temperature signal, and performing calculation and judgment according to a preset temperature change rule to obtain a calculation result, wherein the temperature information carried by the first temperature signal represents the temperature within the air supply range, and the temperature information carried by the second temperature signal represents the temperature of the fresh air area;

[0055] According to the calculation result, the air supply gear is adjusted.

[0056] In some practicable manners, if the first comparison result is that the current carbon dioxide concentration is greater than the carbon dioxide concentration threshold, then after the step of adjusting the air supply gear, the method further comprises:

[0057] Acquire the carbon dioxide concentration at a second time, wherein the second time represents a time point at which the fresh air air conditioner body continuously supplies air;

[0058] If the carbon dioxide concentration at the second time is greater than or equal to the carbon dioxide concentration threshold, continuously turning on the air supply gear;

[0059] If the carbon dioxide concentration at the second time is less than the carbon dioxide concentration threshold, the air supply gear is turned off.

[0060] In some practicable manners, if the carbon dioxide concentration at the second time is less than the carbon dioxide concentration threshold, the step of closing the air supply gear includes:

[0061] If the carbon dioxide concentration at the second time is less than the carbon dioxide concentration threshold, the air supply level continues to be turned on according to the preset air supply level turn-on time until the air supply level turn-on time ends, and then the air supply level is turned off.

[0062] In some practicable manners, the step of obtaining the temperature information carried by the first temperature signal and the temperature information carried by the second temperature signal, and performing calculation and judgment according to a preset temperature change rule to obtain a calculation result includes:

[0063] Constructing a preset temperature change rule, wherein the temperature change rule includes: the running time t of the air supply gear, and the corresponding first condition and second condition;

[0064] The first condition includes an initial time and an end time, and the temperature difference within the air supply range is greater than a preset first temperature difference;

[0065] The second condition includes an end time, and the temperature difference between the fresh air area and the air supply range is greater than a preset second temperature difference;

[0066] If both the first condition and the second condition are met, lowering the current air supply gear;

[0067] If at least one of the first condition and the second condition is not satisfied, the carbon dioxide concentration at the end time t is compared with the carbon dioxide concentration threshold, and based on the comparison result, it is determined whether to increase the current air supply level.

[0068] In some practicable manners, if at least one of the first condition and the second condition is not met, the step of comparing the carbon dioxide concentration at the end time t with the carbon dioxide concentration threshold, and determining whether to increase the current air supply gear according to the comparison result, includes:

[0069] If at least one of the first condition and the second condition is not met, comparing the carbon dioxide concentration at the end time t with the carbon dioxide concentration threshold to obtain a rule comparison result;

[0070] If the rule comparison result is that the carbon dioxide concentration at time t is greater than or equal to the carbon dioxide concentration threshold, then the current air supply gear is increased;

[0071] If the rule comparison result is that the carbon dioxide concentration at time t is less than the carbon dioxide concentration threshold, the current air supply gear is maintained.

[0072] In some practicable manners, the step of obtaining the temperature information carried by the first temperature signal and the temperature information carried by the second temperature signal, and performing calculations according to a preset temperature change rule to obtain a calculation result, further includes:

[0073] Acquire the running time t of the air supply gear, obtain the first temperature information of the first temperature signal at the initial time of the running of the air supply gear, and the second temperature information of the end time;

[0074] Acquire the running time t of the air supply gear, and obtain the third temperature information of the second temperature signal at the end time of the running of the air supply gear;

[0075] According to a preset temperature change rule, the first temperature information, the second temperature information and the third temperature information are calculated and judged to obtain a calculation result.

[0076] In a sixth aspect, the present application provides a control system for a fresh air function of a fresh air air conditioner, which is applied to the control method for the fresh air function of the fresh air air conditioner described above, and the system includes:

[0077] an acquisition unit, configured to acquire, at a first time, a carbon dioxide concentration within an air supply range according to a first biological signal, to obtain a current carbon dioxide concentration, wherein the first time indicates a current time;

[0078] A comparison unit is used to compare the current carbon dioxide concentration with a preset carbon dioxide concentration threshold to obtain a first comparison result:

[0079] a judgment unit, configured to adjust the air supply gear if the first comparison result is that the current carbon dioxide concentration is greater than or equal to the carbon dioxide concentration threshold;

[0080] The acquisition unit is further used to acquire the temperature information carried by the first temperature signal and the temperature information carried by the second temperature signal, and perform calculation and judgment according to a preset temperature change rule to obtain a calculation result, wherein the temperature information carried by the first temperature signal represents the temperature within the air supply range, and the temperature information carried by the second temperature signal represents the temperature of the fresh air area;

[0081] The result unit is further used to adjust the air supply gear according to the calculation result.

[0082] In a seventh aspect, the present application provides a computer program, which, when executed by a processor, implements the steps of the control method of the fresh air function of the fresh air air conditioner mentioned above.

[0083] Beneficial effect: timely adjust the carbon dioxide concentration while taking into account the indoor temperature changes to avoid human discomfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0084] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0085] Figure 1 It is a flow chart of a method for controlling a fresh air function of a fresh air air conditioner in one embodiment;

[0086] Figure 2 It is a flow chart of a method for controlling a fresh air function of a fresh air air conditioner in one embodiment;

[0087] Figure 3 A fresh air function start-stop logic diagram of a method for controlling a fresh air function of a fresh air air conditioner in one embodiment;

[0088] Figure 4This is a fresh air function gear control logic diagram of a method for controlling the fresh air function of a fresh air air conditioner in one embodiment. DETAILED DESCRIPTION

[0089] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0090] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all couplings of one or more related listed items.

[0091] It can be understood that the terms "first", "second", etc. used in the present application can be used in this article to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element.

[0092] Although fresh air air conditioners can achieve indoor and outdoor air exchange, they are still mainly controlled manually. That is to say, when the indoor carbon dioxide concentration is too high and causes discomfort to the human body, people will realize the need to turn on the fresh air. The inventors of this application have found that even if there is a fresh air air conditioner that can monitor the indoor carbon dioxide concentration, it will start working when it detects that it is greater than the set threshold, and then stop working when it detects that it is less than the set threshold. This simple execution logic will not only cause the fresh air air conditioner to start frequently, wasting electricity, but also cause the indoor temperature to drop significantly due to the introduction of fresh air, thereby affecting the user experience.

[0093] The present application provides a control device, method, electronic device, fresh air air conditioner, system and program for the fresh air function of a fresh air air conditioner to solve the aforementioned technical problems.

[0094] It should be noted that the fresh air air conditioner mentioned in this application can be an integrated type or a split type. If the fresh air air conditioner is an integrated type, it will be set at the place of use, and the fresh air duct introduced into the place of use will be set in the fresh air area; if the fresh air air conditioner is a split type, it will include an indoor unit (indoor unit) and an outdoor unit (outdoor unit), and the indoor unit and the outdoor unit are connected by a pipeline. The fresh air air conditioner has an air supply gear, and the gear can be 1st gear, 2nd gear, 3rd gear, 4th gear and 5th gear, etc. The air supply speed is different for different gears. In addition, the fresh air air conditioner can also include 0 gear and initial gear, 0 gear represents the off gear, and the initial gear represents the current working gear of the fresh air air conditioner after the fresh air air conditioner is turned on. For example, after the fresh air air conditioner starts working, the gear is converted to the 3rd gear corresponding to the initial gear. After the fresh air air conditioner works, the initial gear can also be automatically adjusted according to the external environment, for example, upshift or downshift.

[0095] The adjustment of the air supply gear can respond to the action of the fresh air function start-stop module. The fresh air function start-stop module can be understood as a conventional start switch capable of performing logical judgment. The biological signals, temperature signals, etc. received by the fresh air air conditioner are all processed by the fresh air function start-stop module.

[0096] The use area refers to the area within the air supply range of the fresh air air conditioner, for example, indoors. It should be noted that the use area can be greater than or equal to the air supply range of the fresh air air conditioner. For example, the use area is a house of 100 square meters, and the air supply range of the fresh air air conditioner is 100 square meters. However, there are multiple rooms in this house, which will cause the air supply of the fresh air air conditioner to be affected by the wall and reduced. In other words, in this case, the air supply range of the fresh air air conditioner is actually less than 100 square meters. However, excluding special circumstances, the area of ​​the use area is equal to the air supply area.

[0097] The fresh air area refers to the area where fresh air is extracted. This fresh air area can be outdoors or another room separated from the room by one or more walls. When the fresh air area is a room, the fresh air air conditioner can deliver the fresh air from one room to another room. At this time, the fresh air can be understood as the specific gas that needs to be delivered to the room.

[0098] In a first aspect, the present application provides a method for controlling a fresh air function of a fresh air air conditioner. Figure 1 As shown, the method includes the following processing steps.

[0099] S10: Obtaining a carbon dioxide concentration, where the carbon dioxide concentration refers to a carbon dioxide concentration within an air supply range of the fresh air air conditioner.

[0100] In this embodiment, for example, the carbon dioxide concentration is acquired in real time, or acquired when needed. The acquisition can be determined in the following description and will not be repeated here.

[0101] S12: When the carbon dioxide concentration is greater than a preset carbon dioxide concentration threshold, the fresh air function is operated.

[0102] In this embodiment, a carbon dioxide concentration threshold is preset. When the carbon dioxide concentration is greater than or equal to the threshold, it means that the carbon dioxide concentration is high and there is a need to reduce the carbon dioxide concentration. When the carbon dioxide concentration is less than the threshold, it means that the carbon dioxide concentration is relatively reasonable.

[0103] S14: During the operation of the fresh air function, the air supply level of the fresh air function is adjusted according to changes in indoor temperature.

[0104] Optionally, in an implementation of this embodiment, the indoor temperature change includes at least one of an indoor temperature difference and an indoor and outdoor temperature difference.

[0105] The control method provided by this embodiment determines whether to trigger the adjustment of the carbon dioxide concentration by detecting the carbon dioxide concentration, so that the carbon dioxide concentration can be adjusted in time in response to the carbon dioxide concentration, thereby improving timeliness. In the process of running the fresh air function, the air supply gear of the fresh air function is adjusted according to the indoor temperature change, so that the indoor temperature change can be taken into account while introducing fresh air, avoiding human discomfort caused by large indoor temperature difference or indoor and outdoor temperature difference caused by the introduction of fresh air.

[0106] Optionally, in an implementation of this embodiment, the carbon dioxide concentration may be acquired in the following manner.

[0107] Method 1: When the fresh air function is not running, the carbon dioxide concentration is determined based on the change in the number of organisms within the air supply range of the fresh air air conditioner.

[0108] Specifically, the biological growth concentration of carbon dioxide can be determined based on the number of organisms within the air supply range of the fresh air air conditioner, the biological mean of the carbon dioxide growth rate (taking humans as an example, it is the per capita carbon dioxide growth rate; taking humans and cats as an example, the two organisms correspond to the per capita carbon dioxide growth rate and the per capita carbon dioxide growth rate of cats, respectively), and the residence time of the organisms; on the basis of the baseline concentration of carbon dioxide, the carbon dioxide concentration is calculated by combining the natural reduction concentration of carbon dioxide and the biological growth concentration of carbon dioxide. For example, carbon dioxide concentration = baseline concentration of carbon dioxide - natural reduction concentration of carbon dioxide + biological growth concentration of carbon dioxide.

[0109] Among them, the biological growth concentration of carbon dioxide refers to the concentration growth caused by the presence of organisms within the air supply range. Taking humans as an example, the biological growth concentration of carbon dioxide can be accumulated based on the number of people, the per capita carbon dioxide growth rate, and the length of stay of each person. The baseline concentration of carbon dioxide refers to the carbon dioxide concentration under the condition of smooth indoor and outdoor ventilation, or a pre-set concentration, for example, the average indoor carbon dioxide concentration in a certain area. The naturally reduced concentration of carbon dioxide can be calculated based on the natural reduction rate of carbon dioxide (which can be a set value) and the duration (for example, starting from the detection of the presence of organisms in the room).

[0110] Method 2: When the fresh air function is running, the carbon dioxide concentration is determined based on changes in the number of organisms within the air supply range of the fresh air air conditioner and the air supply level of the fresh air function.

[0111] Specifically, the biological growth concentration of carbon dioxide can be determined based on the number of organisms within the air supply range of the fresh air air conditioner, the biological mean of the carbon dioxide growth rate, and the biological residence time; the passive reduction concentration of carbon dioxide can be determined based on the air supply gear, the carbon dioxide concentration reduction rate corresponding to the air supply gear, and the time for which the air supply gear is maintained; on the basis of the carbon dioxide baseline concentration, the carbon dioxide concentration is calculated by combining the natural reduction concentration of carbon dioxide, the biological growth concentration of carbon dioxide, and the passive reduction concentration of carbon dioxide.

[0112] The passive reduction of carbon dioxide concentration refers to the concentration reduction caused by the operation of the fresh air function. Different air supply gears correspond to different carbon dioxide reduction rates.

[0113] In this implementation, different methods are used to determine the carbon dioxide concentration for the cases where the fresh air function is running and the fresh air function is not running, which is conducive to obtaining a relatively accurate carbon dioxide concentration value that is consistent with the scenario in a low-cost environment without using a gas sensor.

[0114] Optionally, in this implementation, the carbon dioxide concentration can be obtained in response to the first appearance of a living thing (e.g., a human) within the air supply range. The number change of living things in the fresh air air conditioner can be monitored based on the biological monitoring unit, and the number change includes: the number of living things, the average rate of increase of carbon dioxide corresponding to the living things, the time of change of the number of living things, etc. Exemplarily, the biological detection unit can be a millimeter wave radar, a camera, etc. Radar is relatively suitable for situations where only humans are considered, while cameras are more suitable for situations involving multiple living things, such as the coexistence of humans and pets.

[0115] Optionally, in an implementation of the embodiment of the present application, the indoor temperature change includes the indoor temperature difference before and after the fresh air function runs at the current air supply gear for a set time, and / or the indoor and outdoor temperature difference after the fresh air function runs at the current air supply gear for a set time. With this implementation, the indoor temperature difference and / or the indoor and outdoor temperature difference can be used to measure the impact of introducing fresh air on human comfort.

[0116] In this implementation, during the operation of the fresh air function, the air supply level of the fresh air function is adjusted according to the indoor temperature change, including:

[0117] ① After the fresh air function runs for the first set time at the current air supply level, the target temperature difference is obtained, and the target temperature difference is at least one of the indoor temperature difference and the indoor and outdoor temperature difference; ② When the target temperature difference meets the set condition, the air supply level is reduced; ③ After the fresh air function runs for the second set time at the reduced air supply level, the target temperature difference is obtained again (that is, the processing logic of ① is returned to and the execution is continued in a loop until the target temperature difference does not meet the set condition). Among them, the second set time is the same as the first set time, and of course, it can also be different, and this application does not make specific restrictions on this.

[0118] Exemplarily, the target temperature difference satisfies the set conditions, including: when the target temperature difference is the indoor temperature difference, the indoor temperature difference is greater than a first temperature difference threshold; when the target temperature difference is the indoor and outdoor temperature difference, the indoor and outdoor temperature difference is greater than a second temperature difference threshold; when the target temperature difference is the indoor temperature difference and the indoor and outdoor temperature difference, the indoor temperature difference is greater than the first temperature difference threshold and the indoor and outdoor temperature difference is greater than the second temperature difference threshold.

[0119] Furthermore, the method further includes: when the target temperature difference does not satisfy the set condition, adjusting the air supply level according to the relationship between the current carbon dioxide concentration and the carbon dioxide concentration threshold.

[0120] Specifically, if the current carbon dioxide concentration is greater than or equal to the carbon dioxide concentration threshold, the air supply gear is increased, and after the fresh air function runs at the increased air supply gear for a third set time, the target temperature difference is re-obtained (so as to determine how to adjust the air supply gear according to the re-obtained target temperature difference, the judgment logic is the same as before and will not be repeated here); or,

[0121] If the current carbon dioxide concentration is less than the carbon dioxide concentration threshold, the air supply gear is maintained unchanged and runs for the fourth set time period (the fresh air function can be stopped afterwards, but the carbon dioxide concentration is kept monitored to trigger the operation of the fresh air function when the carbon dioxide concentration exceeds the threshold; alternatively, the target temperature difference can be re-obtained afterwards and it can be determined how to adjust the air supply gear).

[0122] Among them, the first set time length, the second set time length, the third set time length and the fourth set time length may be the same or different, and this application does not limit this.

[0123] In a second aspect, an embodiment of the present application provides an electronic device, including a memory and a processor, wherein the memory is used to store computer instructions. The processor is used to call and execute the computer instructions to implement the method provided by the method embodiment of the present application. The electronic device may be a hardware product such as an integrated chip, a PCB circuit board, etc.

[0124] In a third aspect, an embodiment of the present application provides a fresh air air conditioner, comprising a fresh air introduction mechanism for introducing outdoor air into a room, the fresh air air conditioner adopts the control method provided in the method embodiment of the present application to control the start and stop of the fresh air function and adjust the air supply gear, or the fresh air air conditioner has an electronic device provided in an embodiment of the present application.

[0125] Optionally, in an implementation of the embodiment of the present application, the fresh air air conditioner also includes a biological monitoring unit for monitoring changes in the number of living organisms in the fresh air air conditioner; a first temperature sensing bag for monitoring indoor temperature; and a second temperature sensing bag for monitoring outdoor temperature.

[0126] In a fourth aspect, the present application provides a control device for a fresh air function of a fresh air air conditioner, the device comprising a fresh air air conditioner main body, a biological monitoring unit, a first temperature sensing bag and a second temperature sensing bag.

[0127] Among them, the main body of the fresh air air conditioner is set at the place of use, and the place of use is connected with the fresh air area. It has an air supply range and an air supply gear, which is used to monitor the carbon dioxide concentration within the air supply range, and adjust the air supply gear according to the carbon dioxide concentration to deliver the fresh air in the fresh air area to the air supply range.

[0128] Exemplarily, the main body of the fresh air air conditioner may include a carbon dioxide sensor (a carbon dioxide sensor is a general term for sensors used for carbon dioxide monitoring, and may specifically be one or more of an infrared gas sensor, an electrochemical sensor, a metal oxide semiconductor sensor, etc.), and the carbon dioxide sensor is used to monitor the concentration of carbon dioxide at the place of use. When the main body of the fresh air air conditioner detects the carbon dioxide concentration, the air supply gear is adjusted. For example, the fresh air air conditioner is in the 0 gear state and is adjusted to the 3 gear state corresponding to the initial gear. In this way, the fresh air air conditioner will send the fresh air in the fresh air area to the place of use at the wind speed set at the 3 gear, so as to reduce the carbon dioxide concentration at the place of use; in addition, when the fresh air air conditioner does not have the 0 gear, it will be adjusted from the closed gear to the 3 gear, which is equivalent to the 0 gear being the closed gear. In addition, the position of the carbon dioxide sensor can be set inside the main body of the fresh air air conditioner, or it can be set outside the main body of the fresh air air conditioner. When it is set outside the main body of the fresh air air conditioner, it can be connected to the main body of the fresh air air conditioner by wire or wireless means. The carbon dioxide sensor can be arranged at a position within the air supply range, and the number can be one or more.

[0129] The biological monitoring unit can be set inside or outside the main body of the fresh air air conditioner. If it is set outside the main body of the fresh air air conditioner, multiple units can be arranged at the place of use as needed to increase the monitoring range, especially when the place of use has multiple corners. The biological monitoring unit is used to monitor living organisms within the air supply range and form a first biological signal, which is sent to the main body of the fresh air air conditioner. Among them, the biological monitoring unit may include a millimeter wave radar, which uses the millimeter wave radar to monitor living organisms within the air supply range to determine whether there are living organisms within the air supply range. When there are living organisms, a first biological signal can be formed. It can be understood that living organisms can be humans or animals, and objects that can produce carbon dioxide within the air supply range can be attributed to living organisms.

[0130] The first temperature sensing package is used to monitor the temperature within the air supply range, and form a first temperature signal, which is sent to the fresh air air conditioner body. The second temperature sensing package is used to monitor the temperature of the fresh air area, and form a second temperature signal, which is sent to the fresh air air conditioner body. Furthermore, the first temperature sensing package and the second temperature sensing package are components capable of monitoring temperature, such as temperature sensors, and components used in conjunction with temperature sensors, which use temperature sensors to monitor temperature signals and send monitoring signals to the fresh air air conditioner body connected thereto, so that the fresh air air conditioner body responds to the temperature signals and performs corresponding calculations or operations.

[0131] In the present application, the main body of the fresh air air conditioner is connected to the biological monitoring unit, the first temperature sensing package and the second temperature sensing package respectively. The connection method can be a wired connection, such as electrical coupling; the connection method can also be a wireless connection, such as Bluetooth, WiFi connection. In the present application, the main body of the fresh air air conditioner is connected to the biological monitoring unit, the first temperature sensing package and the second temperature sensing package. The connection method is not limited, as long as the signal can be transmitted.

[0132] It should be noted that when the fresh air air conditioner body is connected to the biological monitoring unit, it can respond to the first biological signal sent to it by the biological monitoring unit. The first biological signal can be understood as a trigger signal, which triggers the fresh air air conditioner body to monitor the carbon dioxide concentration. The monitoring method can be a carbon dioxide sensor. The monitoring description of the carbon dioxide sensor has been described in the above content and will not be repeated here. When the fresh air air conditioner body monitors the carbon dioxide concentration data, it will be compared with the preset carbon dioxide concentration threshold to determine whether the carbon dioxide concentration at the current place of use exceeds the carbon dioxide concentration threshold. If the current carbon dioxide concentration is greater than or equal to the preset carbon dioxide concentration threshold, the fresh air air conditioner body will adjust the air supply gear, for example, adjust the air supply gear from 0 to the initial gear "3", or adjust the air supply gear from the closed state to the initial gear "3", and supply air to the place of use.

[0133] It should also be noted that after the fresh air air conditioner body is turned on at the initial gear, it will receive the temperature signal transmitted by the first temperature sensing package and the second temperature sensing package during the air supply process, so as to determine whether the initial gear has a greater impact on the ambient temperature of the place of use based on the temperature information carried by the temperature signal, thereby affecting the physical sensation of the person staying at the place of use. The first temperature sensing package and the second temperature sensing package will continuously monitor the temperature of the place of use and the fresh air area during the air supply process of the fresh air air conditioner body, and transmit the monitored first temperature signal and second temperature signal to the fresh air air conditioner body, so that the fresh air air conditioner body can perform calculations, such as subtraction calculations, based on the first temperature signal and the second temperature signal formed at different times to determine the temperature difference, and then determine whether the temperature reduction range of the place of use is too large based on the temperature difference (too large a temperature reduction range will affect the physical sensation of the person staying at the place of use), and then determine whether the air supply gear needs to be adjusted.

[0134] In a fifth aspect, the present application provides a method for controlling a fresh air function of a fresh air air conditioner, which is applied to the control system of the fresh air function of the fresh air air conditioner described above, and the method comprises:

[0135] like Figure 2 As shown, S100, at the first time, the carbon dioxide concentration in the air supply range is obtained according to the first biological signal to obtain the current carbon dioxide concentration.

[0136] Among them, the first time represents the current time.

[0137] Specifically, at the current time, the biological monitoring unit is used to monitor the living organisms within the air supply range. If there are living organisms, a first biological signal will be generated and sent to the fresh air air conditioner body. The fresh air air conditioner body will respond to the first biological signal, start working, monitor the carbon dioxide concentration in the air supply range, and obtain the current carbon dioxide concentration. In addition, the biological monitoring unit will monitor the use site in real time to form the first biological signal in a timely manner.

[0138] Furthermore, when the biological monitoring unit is a millimeter-wave radar, the millimeter-wave radar can scan and monitor the number of people in the place of use (for example, a room), and can also scan and monitor the position of people as needed; after the millimeter-wave radar monitors the number of people in the room in real time, it determines the number of people a. When a≥1, there are people in the room. When a<1, it is determined that there is no one in the room, no biological signal feedback is made, and the number of people in the room continues to be monitored; that is, when a≥1, the millimeter-wave radar will form the personnel information into the first biological signal, and feed it back to the fresh air function start and stop module (the fresh air function start and stop module is the module in the fresh air air conditioner body that controls the adjustment of the air supply gear); after receiving the personnel change information, the fresh air function start and stop module will calculate the indoor carbon dioxide concentration C.

[0139] It should be noted that when the biological monitoring unit detects that there are no living organisms within the air supply range, the biological monitoring unit can send a second biological signal to the fresh air air conditioner body. The second biological signal indicates that there are no living organisms within the air supply range. At this time, there is no need to quickly remove carbon dioxide. In this way, after receiving the second biological signal, the fresh air air conditioner body will adjust the working gear and work at the most power-saving gear, thereby saving electricity.

[0140] It should also be noted that the fresh air air conditioner receives the first biological signal and starts detecting the carbon dioxide concentration. The calculation formula is as follows:

[0141] C=a×v2×t-v1×t+C0

[0142] Wherein, C represents the real-time concentration of carbon dioxide, a represents the number of organisms in the use area, v2 represents the rate of carbon dioxide growth caused by organisms (i.e., the biological mean of the carbon dioxide growth rate mentioned above), t represents the residence time of organisms in the use area (i.e., the biological residence time mentioned above), C0 represents the carbon dioxide concentration under the condition of smooth ventilation in the use area (i.e., the carbon dioxide baseline concentration mentioned above), a×v2×t represents the biological growth concentration of carbon dioxide mentioned above, and v1×t represents the natural reduction concentration of carbon dioxide mentioned above.

[0143] S200, comparing the current carbon dioxide concentration with a preset carbon dioxide concentration threshold to obtain a first comparison result.

[0144] Specifically, after receiving the current carbon dioxide concentration, the fresh air air conditioner body will compare the current carbon dioxide concentration with the carbon dioxide concentration threshold preset at the factory, thereby obtaining a first comparison result. The comparison method can be to subtract the two. After the two are subtracted, there will be three situations: greater than, equal to, and less than. According to the first comparison result, the following operations are performed:

[0145] If the first comparison result is that the current carbon dioxide concentration is greater than or equal to the carbon dioxide concentration threshold, the air supply level is adjusted.

[0146] The adjustment method is to increase the air supply level to speed up the removal of carbon dioxide. Although this method reduces the time, it will cause the indoor temperature to change in a short period of time, which will bring an uncomfortable experience. Another adjustment method is to reduce the air supply level. This method can still reduce the carbon dioxide concentration, but the time will increase and the indoor temperature change will decrease. Whether to increase or reduce the air supply level will be described in the subsequent steps and will not be described in detail here.

[0147] If the first comparison result is that the current carbon dioxide concentration is less than the carbon dioxide concentration threshold, it means that the carbon dioxide concentration in the air supply range is within a reasonable range. In this way, there is no need to reduce the current carbon dioxide concentration at the place of use, and the fresh air air conditioner body does not need to work.

[0148] S300, acquiring temperature information carried by the first temperature signal and temperature information carried by the second temperature signal, and performing calculation and judgment according to a preset temperature change rule to obtain a calculation result.

[0149] The temperature information carried by the first temperature signal represents the temperature within the air supply range, and the temperature information carried by the second temperature signal represents the temperature of the fresh air area.

[0150] Specifically, the first temperature sensing package is used to obtain the temperature of the use location to form a first temperature signal carrying the current temperature information; the second temperature sensing package obtains the temperature of the fresh air area to form a second temperature signal carrying the current temperature signal. The fresh air air conditioner body will receive the first temperature signal and the second temperature signal sent by the first temperature sensing package and the second temperature sensing package, and perform calculations and judgments based on the temperature information carried by the first temperature signal, the temperature information carried by the second temperature signal, and the preset temperature change rules to obtain a calculation result. Based on this calculation result, it represents how the gear position of the fresh air air conditioner body should be adjusted.

[0151] S400, adjusting the air supply level according to the calculation result.

[0152] Specifically, in the aforementioned step S300, after obtaining the calculation results, the fresh air air conditioner body will perform operations to increase, maintain or decrease the air supply level according to the calculation results. In this way, not only the carbon dioxide concentration within the air supply range is adjusted, but also the temperature changes caused by adjusting the carbon dioxide concentration can be reduced. The discomfort caused by the temperature changes can be reduced. The air supply level adjustment here is the air supply level adjustment based on the carbon dioxide concentration.

[0153] The air supply gear adjustment may include adjusting the air supply gear to the initial gear, and may also include adjusting the air supply gear to gear 0. As mentioned above, gear 0 means that the fresh air air conditioner is not started. For the sake of ease of understanding, gear 0 is described here. In the actual operation of the fresh air air conditioner main body, gear 0 means that the fresh air air conditioner main body does not start the air supply action.

[0154] In one embodiment, the judgment step in step S200: if the first comparison result is that the current carbon dioxide concentration is greater than the carbon dioxide concentration threshold, then after the step of adjusting the air supply gear, the following may be included:

[0155] Get the carbon dioxide concentration at a second time.

[0156] Among them, the second time represents a time point when the fresh air air conditioner body continues to supply air, that is, any time when the fresh air air conditioner body starts working after the first time.

[0157] Specifically, after the fresh air air conditioner main body has been working for a period of time, at the second time, the calculation formula for the carbon dioxide concentration monitored by the fresh air air conditioner main body is:

[0158] C=a×v2×t-v1×t+C0-e×v3×t3

[0159] Wherein, C represents the real-time concentration of carbon dioxide, a represents the number of organisms at the place of use, v2 represents the rate of carbon dioxide growth caused by organisms (i.e., the biological mean of the carbon dioxide growth rate mentioned above), t represents the residence time of organisms at the place of use (i.e., the biological residence time mentioned above), C0 represents the carbon dioxide concentration under the condition of smooth ventilation at the place of use (i.e., the carbon dioxide baseline concentration mentioned above), e represents the air supply gear, v3 represents the rate of reduction of carbon dioxide concentration at each gear after the fresh air function of the fresh air air conditioner is turned on, t3 represents the duration of the current air supply gear, a×v2×t represents the biological growth concentration of carbon dioxide mentioned above, v1×t represents the natural reduction concentration of carbon dioxide mentioned above, and e×v3×t3 represents the passive reduction concentration of carbon dioxide mentioned above.

[0160] It should be noted that the formulas provided in this application are all examples of formulas based on a fixed number of personnel and a fixed air supply level. The actual situation is more complicated, such as changes in personnel and air supply levels. In the face of these situations, those skilled in the art can perform corresponding cumulative processing based on the above formulas. Therefore, this application no longer provides specific formulas for complex scenarios.

[0161] It should be noted that when the fresh air air conditioner is turned on, the carbon dioxide concentration in the air supply range will decrease. In this case, the air supply gear will be adjusted. The specific adjustment logic is as follows:

[0162] If the carbon dioxide concentration at the second time is greater than or equal to the carbon dioxide concentration threshold, the air supply level is continuously turned on.

[0163] If the carbon dioxide concentration at the second time is less than the carbon dioxide concentration threshold, the air supply gear is turned off.

[0164] The air supply gear can be started according to the adjustment judgment logic of the air supply gear.

[0165] like Figure 3 As shown, exemplarily, after receiving the personnel change information in the second time, the fresh air function start-stop module calculates the current carbon dioxide concentration in the room (this process will continue until the number of people monitored by the millimeter wave radar is a<1), and compares the current carbon dioxide concentration with the carbon dioxide concentration threshold. If the current carbon dioxide concentration is greater than or equal to the carbon dioxide concentration threshold, it is determined that the indoor carbon dioxide concentration is high and the fresh air function needs to be turned on, that is, the air supply gear is turned on; if the current carbon dioxide concentration is less than the carbon dioxide concentration threshold, it is determined that the carbon dioxide concentration in the room has not reached the level that needs to be removed, and the fresh air function is not turned on.

[0166] In one embodiment, if the carbon dioxide concentration at the second time is less than the carbon dioxide concentration threshold, the air supply level continues to be turned on according to the preset air supply level turn-on time until the air supply level turn-on time ends, and then the air supply level is turned off.

[0167] It should be noted that the preset air supply gear opening time can be 5 minutes, 10 minutes, 15 minutes, 20 minutes, etc. When the carbon dioxide concentration at the second time is less than the carbon dioxide concentration threshold, the purpose of still turning on the fresh air function is that even if the carbon dioxide concentration is already lower than the carbon dioxide concentration threshold, continued ventilation can ensure that the air quality is further improved and maintained, and prevent the carbon dioxide concentration from rising again. In addition, if the air supply is turned off immediately when the carbon dioxide concentration is just below the threshold, the activities of the people using the place may quickly cause the carbon dioxide concentration to rise again. Continuing the air supply can prevent this rapid rebound and frequent start and stop of the fresh air.

[0168] In one embodiment, step S400, the step of obtaining the temperature information carried by the first temperature signal and the temperature information carried by the second temperature signal, and performing calculation and judgment according to a preset temperature change rule to obtain the calculation result may include:

[0169] Construct preset temperature change rules.

[0170] The temperature change rule includes: the running time t of the air supply gear, the corresponding first condition and the second condition. The running time t indicates the working time of the air supply gear, but it is not the time when the air supply gear stops working. For example, the overall working time of the air supply gear is 2 hours, and the running time t indicates any time point from the beginning to the end of 2 hours, that is, the start of the air supply gear can be understood as the initial time, the running time t can be understood as the end time, and running to 2 hours can be understood as the final end time.

[0171] Specifically, the first condition includes an initial time and an end time, and the temperature difference within the air supply range is greater than a preset first temperature difference;

[0172] The second condition includes the end time, and the temperature difference between the fresh air area and the supply air range is greater than the preset second temperature difference.

[0173] If both the first condition and the second condition are met, the current air supply level is reduced;

[0174] If at least one of the first condition and the second condition is not satisfied, the carbon dioxide concentration at the end time t is compared with the carbon dioxide concentration threshold, and based on the comparison result, it is determined whether to increase the current air supply level.

[0175] like Figure 4 As shown, exemplarily, after receiving the start signal, the fresh air function start-stop module immediately starts the fresh air function and runs at the initial gear, which is gear 3; thereafter, the fresh air air conditioner body obtains the indoor temperature T1 through the first temperature sensing package (in some other embodiments, the indoor temperature T1 and the outdoor temperature T2 can also be obtained respectively through the first temperature sensing package and the second temperature sensing package); after running for a period of time t, the indoor temperature is obtained again and recorded as T1' and the outdoor temperature T2; the indoor temperature change value |T1'-T1| and the indoor and outdoor temperature difference |T2-T1'| after the running time t can be obtained for judgment:

[0176] The first condition: when |T1'-T1|≥2, that is, the indoor temperature changes by more than 2°C, it is judged that the indoor ambient temperature changes greatly;

[0177] The second condition is that when |T2-T1'|≥4℃, it is judged that the temperature difference between indoor and outdoor is too large.

[0178] If the first condition and the second condition are met at the same time, it is determined that the temperature difference in the indoor link is too large due to the large amount of fresh air when the indoor and outdoor temperature difference is large, and the air supply gear is reduced by one gear and runs for a period of time t' (the purpose of running for a period of time t' is to complete the adjustment of the air supply gear);

[0179] If the first condition and the second condition cannot be met at the same time, a re-determination is performed;

[0180] The re-judgment may include the following steps:

[0181] If at least one of the first condition and the second condition is not met, the carbon dioxide concentration at the end time t is compared with the carbon dioxide concentration threshold to obtain a rule comparison result;

[0182] If the rule comparison result is that the carbon dioxide concentration at time t is greater than or equal to the carbon dioxide concentration threshold, the current air supply gear is increased;

[0183] If the rule comparison result is that the carbon dioxide concentration at time t is less than the carbon dioxide concentration threshold, the current air supply gear is maintained.

[0184] For example, the indoor carbon dioxide concentration and the carbon dioxide concentration threshold are judged at this time. If the carbon dioxide concentration at time t is greater than the carbon dioxide concentration threshold, it means that the indoor carbon dioxide concentration is too high at this time, and the air supply gear is increased by one gear, and it is run for a period of time t' (the purpose of running t' is to complete the adjustment of the air supply gear); if the carbon dioxide concentration at time t is less than or equal to the carbon dioxide concentration threshold, the air supply function gear is appropriate at this time, and it continues to run for a period of time. The control logic of the fresh air function will continue to run until the fresh air function start and stop logic determines to stop running.

[0185] In one embodiment, after the rules are constructed in the above steps, step S400 may be executed, and step S400 may further include the following steps:

[0186] Obtain the running time t of the air supply gear, obtain the first temperature information of the first temperature signal at the initial time of the running of the air supply gear, and the second temperature information of the end time;

[0187] Acquire the running time t of the air supply gear, and obtain the third temperature information of the second temperature signal at the end time of the running of the air supply gear;

[0188] According to a preset temperature change rule, the first temperature information, the second temperature information and the third temperature information are calculated and judged to obtain a calculation result.

[0189] Exemplarily, the preset first temperature difference (ΔT1) is 5°C, the preset second temperature difference (ΔT2) is 3°C, and the initial air supply level is level 3.

[0190] At the beginning of air supply (t = 0 minutes), the first temperature sensing package measures the indoor temperature as 22°C (first temperature information); the second temperature sensing package measures the outdoor fresh air temperature as 18°C ​​(third temperature information). At the time t of air supply (t = 30 minutes), the first temperature sensing package measures the indoor temperature as 25°C (second temperature information). The second temperature sensing package measures the outdoor fresh air temperature as 18°C ​​(third temperature information).

[0191] Next, calculate the temperature difference:

[0192] Temperature difference of the first condition (ΔT1): 25°C (end) - 22°C (initial) = 3°C.

[0193] The temperature difference of the second condition (ΔT2): 25°C (indoor end) - 18°C ​​(outdoor) = 7°C.

[0194] The first condition: 3℃ (actual temperature difference) < 5℃ (preset temperature difference), not met.

[0195] The second condition: 7℃ (actual temperature difference)>3℃ (preset temperature difference), met.

[0196] Since the first condition is not met, when comparing the current carbon dioxide concentration with the carbon dioxide concentration threshold, if the preset carbon dioxide concentration threshold is 400ppm and the current carbon dioxide concentration is 350ppm, since 350ppm<400ppm, it is decided not to increase the air supply level.

[0197] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0198] The various embodiments in the present disclosure are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0199] The protection scope of the present disclosure is not limited to the above-mentioned embodiments. Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the scope and spirit of the present disclosure. If these changes and modifications fall within the scope of the claims of the present disclosure and their equivalents, the intention of the present disclosure also includes these changes and modifications.

Claims

1. A method for controlling a fresh air function of a fresh air air conditioner, characterized in that: The method comprises: Obtaining a carbon dioxide concentration, where the carbon dioxide concentration refers to a carbon dioxide concentration within an air supply range of the fresh air air conditioner; When the carbon dioxide concentration is greater than a preset carbon dioxide concentration threshold, operating the fresh air function; During operation of the fresh air function, the air supply level of the fresh air function is adjusted according to changes in indoor temperature.

2. The method according to claim 1, characterized in that The obtaining of carbon dioxide concentration comprises: When the fresh air function is not running, determining the carbon dioxide concentration based on the change in the number of organisms within the air supply range of the fresh air air conditioner; When the fresh air function is running, the carbon dioxide concentration is determined based on changes in the number of organisms within the air supply range of the fresh air air conditioner and the air supply level of the fresh air function.

3. The method according to claim 2, characterized in that The determining of the carbon dioxide concentration based on the change in the number of organisms within the air supply range of the fresh air air conditioner includes: Determine the biological growth concentration of carbon dioxide according to the number of organisms and the residence time of the organisms within the air supply range of the fresh air air conditioner; The carbon dioxide concentration is calculated based on the baseline concentration of carbon dioxide, combined with the naturally reduced concentration of carbon dioxide and the biologically increased concentration of carbon dioxide.

4. The method according to claim 2, characterized in that: The determining of the carbon dioxide concentration based on the change in the number of organisms within the air supply range of the fresh air air conditioner and the air supply level of the fresh air function includes: Determine the biological growth concentration of carbon dioxide according to the number of organisms and the residence time of the organisms within the air supply range of the fresh air air conditioner; Determining the passive reduction concentration of carbon dioxide according to the air supply gear, the rate of reduction of carbon dioxide concentration corresponding to the air supply gear, and the duration of maintaining the air supply gear; The carbon dioxide concentration is calculated based on the baseline concentration of carbon dioxide, the naturally reduced concentration of carbon dioxide, the biologically increased concentration of carbon dioxide and the passively reduced concentration of carbon dioxide.

5. The method according to claim 1, characterized in that The obtaining of carbon dioxide concentration comprises: The carbon dioxide concentration is obtained in response to the first appearance of organisms in the air supply range.

6. The method according to claim 1, characterized in that The indoor temperature change includes the indoor temperature difference before and after the fresh air function runs at the current air supply gear for a set time, and / or the indoor and outdoor temperature difference after the fresh air function runs at the current air supply gear for a set time.

7. The method according to claim 6, characterized in that In the process of running the fresh air function, adjusting the air supply level of the fresh air function according to the indoor temperature change includes: After the fresh air function is operated at the current air supply gear for a first set time, a target temperature difference is obtained, where the target temperature difference is at least one of the indoor temperature difference and the indoor and outdoor temperature difference; When the target temperature difference meets the set condition, lowering the air supply gear; After the fresh air function runs at the reduced air supply level for a second set time period, the target temperature difference is obtained again.

8. The method according to claim 7, characterized in that The method further comprises: When the target temperature difference does not satisfy the set condition, the air supply level is adjusted according to the relationship between the current carbon dioxide concentration and the carbon dioxide concentration threshold.

9. The method according to claim 8, characterized in that The adjusting the air supply gear according to the relationship between the current carbon dioxide concentration and the carbon dioxide concentration threshold comprises: If the current carbon dioxide concentration is greater than or equal to the carbon dioxide concentration threshold, the air supply gear is increased, and after the fresh air function runs at the increased air supply gear for a third set time, the target temperature difference is re-acquired; or, If the current carbon dioxide concentration is less than the carbon dioxide concentration threshold, the air supply gear is maintained unchanged and runs for a fourth set time period.

10. The method according to claim 7, characterized in that The target temperature difference satisfies the set conditions, including: When the target temperature difference is the indoor temperature difference, the indoor temperature difference is greater than a first temperature difference threshold; When the target temperature difference is the indoor and outdoor temperature difference, the indoor and outdoor temperature difference is greater than a second temperature difference threshold; When the target temperature difference is the indoor temperature difference and the indoor-outdoor temperature difference, the indoor temperature difference is greater than the first temperature difference threshold and the indoor-outdoor temperature difference is greater than the second temperature difference threshold.

11. An electronic device, characterized in that: The electronic device comprises: Memory, for storing computer instructions; A processor, configured to call and execute the computer instructions to implement the method according to any one of claims 1 to 10.

12. A fresh air air conditioner, characterized in that: The fresh air air conditioner comprises a fresh air introduction mechanism for introducing outdoor air into the room, and the fresh air air conditioner adopts the method as described in any one of claims 1 to 10, or the fresh air air conditioner has the electronic device as described in claim 11.

13. The fresh air air conditioner according to claim 12, characterized in that: Also includes: A biological monitoring unit, used to monitor the changes in the number of living organisms in the fresh air air conditioner; The first temperature sensing package is used to monitor the indoor temperature; The second temperature sensing package is used to monitor the outdoor temperature.

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