Fresh air control method, system and device of fresh air device and storage medium

Abstract

The invention discloses a fresh air control method, system and device of a fresh air device and a storage medium. The method comprises the steps that indoor oxygen concentration data in the environment where the fresh air device is located is collected in real time; when the indoor oxygen concentration data is lower than a life safety value, the fresh air device is controlled to conduct fresh air exchange and send out warning information; when the indoor oxygen concentration data is not lower than the life safety value, outdoor oxygen concentration data outside the environment where the fresh air device is located are collected in real time; and the fresh air device is controlled according to the outdoor oxygen concentration data and the indoor oxygen concentration data. A safety mechanism is set for the environment where the fresh air device is located, alarm and air exchange are conducted in the low-oxygen-concentration environment, life threats are relieved, and a user is informed of the current oxygen concentration condition in time; and reasonable fresh air control can be carried out according to the real condition of the indoor oxygen concentration, and the safety of using the fresh air device by a user is fully guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a fresh air control method, system, device and storage medium for a fresh air device. Background Art

[0002] With the improvement of living standards, people are increasingly dependent on fresh air devices (such as air conditioners), which makes people use fresh air devices for a longer time, thus staying in a relatively sealed indoor environment for a long time, and the oxygen in the indoor air will slowly decrease. Studies have found that people who are in a low oxygen concentration environment for a long time will endanger their life safety, leading to safety problems such as suffocation, shortness of breath, headache, suffocation, nausea and vomiting, fainting and even death.

[0003] At present, traditional fresh air devices mostly complete air exchange based on the user's subjective operation. There is no safety mechanism. They will not alarm or exchange air in an environment with low oxygen concentration, and cannot guarantee the safety of users using fresh air devices. Summary of the invention

[0004] In view of this, the present invention provides a fresh air control method, system, device and storage medium for a fresh air device to solve the problem that the existing fresh air technology has no safety mechanism, and will not alarm and exchange air in an environment of low oxygen concentration, resulting in the inability to ensure the safety of users using the fresh air device.

[0005] The present invention provides a fresh air control method for a fresh air device, the method comprising:

[0006] Real-time collection of indoor oxygen concentration data inside the environment where the fresh air device is located;

[0007] When the indoor oxygen concentration data is lower than the life safety value, the fresh air device is controlled to perform fresh air exchange and issue an alarm message;

[0008] When the indoor oxygen concentration data is not lower than the life safety value, the outdoor oxygen concentration data outside the environment where the fresh air device is located is collected in real time; and the fresh air device is controlled according to the outdoor oxygen concentration data and the indoor oxygen concentration data.

[0009] Optionally, the warning information includes first warning information;

[0010] When the indoor oxygen concentration data is lower than the life safety value, controlling the fresh air device to perform fresh air exchange and issuing an alarm message includes:

[0011] When the indoor oxygen concentration data is lower than the life safety value, the fresh air device is controlled to perform fresh air exchange according to a preset maximum air volume, and the first alarm information is sent to the environment where the fresh air device is located.

[0012] Optionally, the warning information further includes second warning information;

[0013] After controlling the fresh air device to perform fresh air exchange according to the preset maximum air volume and sending the first alarm information to the environment where the fresh air device is located, the method further includes:

[0014] After the fresh air device performs fresh air exchange according to the preset maximum air volume for a preset time, reacquiring the indoor oxygen concentration data, and determining whether the reacquired indoor oxygen concentration data rises to the life safety value;

[0015] If yes, stop issuing the first alarm information, and continue to control the fresh air device to perform fresh air exchange according to the preset maximum air volume;

[0016] Otherwise, determine whether a first response signal is received from an indoor user inside the environment where the fresh air device is located; when the first response signal is received, stop issuing the first alarm message, and continue to control the fresh air device to exchange fresh air according to the preset maximum air volume; when the first response signal is not received and the preset time reaches the first set time, continue to issue the first alarm message, and continue to control the fresh air device to exchange fresh air according to the preset maximum air volume, and at the same time use the wireless network to issue the second alarm message to a first associated user outside the environment where the fresh air device is located.

[0017] Optionally, the warning information further includes third warning information;

[0018] When the first response signal is not received and the preset time reaches the first set time, the first alarm information is continuously issued, and the fresh air device is continuously controlled to perform fresh air exchange according to the preset maximum air volume, and the second alarm information is issued to a first associated user outside the environment where the fresh air device is located by using a wireless network, the method further includes:

[0019] Waiting to receive a second response signal sent by the first associated user;

[0020] When the waiting time reaches a second set time, the third alarm information is sent to a second associated user outside the environment where the fresh air device is located using the wireless network; when the waiting time does not reach the second set time, continue to wait for receiving the second response signal.

[0021] Optionally, controlling the fresh air device according to the outdoor oxygen concentration data and the indoor oxygen concentration data includes:

[0022] When the indoor oxygen concentration data is lower than the outdoor oxygen concentration data, and a first concentration difference between the outdoor oxygen concentration data and the indoor oxygen concentration data is greater than a first preset threshold, controlling the fresh air device to perform fresh air exchange according to a first preset ventilation strategy;

[0023] When the indoor oxygen concentration data is lower than the outdoor oxygen concentration data, and the first concentration difference is less than or equal to the first preset threshold, the fresh air device is controlled to turn off the fresh air exchange.

[0024] Optionally, controlling the fresh air device to perform fresh air exchange according to a first preset ventilation strategy includes:

[0025] determining a hypoxia level according to the first concentration difference, and determining a first ventilation air volume according to the hypoxia level;

[0026] According to the first ventilation air volume, the fresh air device is controlled to perform fresh air exchange.

[0027] Optionally, the controlling the fresh air device according to the outdoor oxygen concentration data and the indoor oxygen concentration data further includes:

[0028] When the indoor oxygen concentration data is not lower than the outdoor oxygen concentration data, and a second concentration difference between the indoor oxygen concentration data and the outdoor oxygen concentration data is greater than a second preset threshold, controlling the fresh air device to perform fresh air exchange according to a second preset ventilation strategy;

[0029] When the indoor oxygen concentration data is not lower than the outdoor oxygen concentration data, and the second concentration difference is less than or equal to the second preset threshold, the fresh air device is controlled to turn off the fresh air exchange.

[0030] Optionally, controlling the fresh air device to perform fresh air exchange according to the second preset ventilation strategy includes:

[0031] determining an excess oxygen level according to the second concentration difference, and determining a second ventilation air volume according to the excess oxygen level;

[0032] According to the second ventilation air volume, the fresh air device is controlled to perform fresh air exchange.

[0033] In addition, the present invention also provides a fresh air control system for a fresh air device, which is applied to the fresh air control method for the fresh air device mentioned above, and the system comprises:

[0034] The first data acquisition module is used to collect indoor oxygen concentration data in the environment where the fresh air device is located in real time;

[0035] A first control module, used for controlling the fresh air device to perform fresh air exchange when the indoor oxygen concentration data is lower than the life safety value;

[0036] An alarm module, used for issuing an alarm message when the indoor oxygen concentration data is lower than the life safety value;

[0037] A second data collection module is used to collect outdoor oxygen concentration data outside the environment where the fresh air device is located in real time when the indoor oxygen concentration data is not lower than the life safety value;

[0038] The second control module is used to control the fresh air device according to the collected outdoor oxygen concentration data and the indoor oxygen concentration data when the indoor oxygen concentration data is not lower than the life safety value.

[0039] In addition, the present invention also provides a fresh air control device, including a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the method steps in the aforementioned fresh air control method for the fresh air device when running.

[0040] In addition, the present invention also provides a computer storage medium, which includes: at least one instruction, which implements the method steps in the above-mentioned fresh air control method of the fresh air device when the instruction is executed by the computer.

[0041] The beneficial effects of the present invention are as follows: by collecting indoor oxygen concentration data in real time, real-time monitoring of the oxygen concentration inside the environment where the current fresh air device is located can be achieved, and by comparing it with the life safety value, it can be determined whether the current oxygen concentration environment will endanger life safety; if the indoor oxygen concentration data is lower than the life safety value, it means that the current oxygen concentration environment will endanger life safety, and it is necessary not only to automatically control the fresh air device to exchange fresh air, but also to issue an alarm message, and the current oxygen concentration environment can be quickly improved through automatic fresh air exchange to eliminate the life threat as soon as possible, and the issued alarm message can be promptly informed to the users of the indoor environment to ensure that the users are aware of the current indoor environment and take corresponding solutions; if the indoor oxygen concentration data is not lower than the life safety value, it is necessary to further collect the outdoor oxygen concentration data outside the environment where the fresh air device is located, and determine a reasonable control strategy for the fresh air device based on the comparison between the outdoor oxygen concentration data and the indoor oxygen concentration data;

[0042] The fresh air control method, system, device and storage medium of the fresh air device of the present invention set a safety mechanism for the environment in which the fresh air device is located. It not only performs alarm and air exchange in an environment of low oxygen concentration, thereby eliminating life threats and promptly informing the user of the current oxygen concentration; it can also perform reasonable fresh air control according to the actual situation of indoor oxygen concentration, fully ensuring the safety of users using the fresh air device. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0044] Figure 1 A flow chart showing a fresh air control method of a fresh air device in Embodiment 1 of the present invention is shown;

[0045] Figure 2 A complete flow chart of a fresh air control method in Embodiment 1 of the present invention is shown;

[0046] Figure 3 The structure diagram of a fresh air control system of a fresh air device in the second embodiment of the present invention is shown. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0048] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0049] Embodiment 1

[0050] This embodiment provides a fresh air control method for a fresh air device, such as Figure 1 As shown, the method includes:

[0051] S1: Real-time collection of indoor oxygen concentration data inside the environment where the fresh air device is located;

[0052] S2A: When the indoor oxygen concentration data is lower than the life safety value, the fresh air device is controlled to perform fresh air exchange and issue an alarm message;

[0053] S2B: When the indoor oxygen concentration data is not lower than the life safety value, the outdoor oxygen concentration data outside the environment where the fresh air device is located is collected in real time; and the fresh air device is controlled according to the outdoor oxygen concentration data and the indoor oxygen concentration data.

[0054] In this embodiment, by collecting indoor oxygen concentration data in real time, real-time monitoring of the oxygen concentration inside the environment where the current fresh air device is located can be achieved. By comparing it with the life safety value, it can be determined whether the current oxygen concentration environment will endanger life safety; if the indoor oxygen concentration data is lower than the life safety value, it means that the current oxygen concentration environment will endanger life safety, and it is necessary not only to automatically control the fresh air device to exchange fresh air, but also to issue an alarm message. The current oxygen concentration environment can be quickly improved through automatic fresh air exchange to eliminate the life threat as soon as possible, and the alarm message issued can be promptly informed to the users of the indoor environment to ensure that the users are aware of the current indoor environment and take corresponding solutions; if the indoor oxygen concentration data is not lower than the life safety value, it is necessary to further collect outdoor oxygen concentration data outside the environment where the fresh air device is located, and determine a reasonable control strategy for the fresh air device based on the comparison of the outdoor oxygen concentration data with the indoor oxygen concentration data.

[0055] The fresh air control method of the fresh air device of the present embodiment sets a safety mechanism according to the environment in which the fresh air device is located. It not only performs alarms and air exchanges in an environment of low oxygen concentration, thereby eliminating life threats and promptly informing the user of the current oxygen concentration; it can also perform reasonable fresh air control based on the actual situation of indoor oxygen concentration, thereby fully ensuring the safety of users using the fresh air device.

[0056] In this embodiment, the fresh air device is usually installed in an indoor environment, which is the interior of the environment where the fresh air device is located. The fresh air device is equipped with two oxygen concentration sensors, one of which is installed in the indoor environment and the other is installed in the outdoor environment, so as to collect indoor oxygen concentration data in step S1 and outdoor oxygen concentration data in step S2B respectively. The specific type of the oxygen concentration sensor can be selected according to actual conditions, and this embodiment does not limit it.

[0057] In this embodiment, the fresh air device includes but is not limited to an air conditioner, a duct air conditioner, and an air purifier with a fresh air function. For ease of description, this embodiment takes an air conditioner as an example.

[0058] Each step of the fresh air control method of the fresh air device of this embodiment is described in detail below.

[0059] In step S1 of the present embodiment, the process of collecting indoor oxygen concentration data is a real-time collection process, that is, the indoor oxygen concentration data may change in real time. Through real-time collection, real-time monitoring of the oxygen concentration inside the environment where the current fresh air device is located can be achieved, thereby ensuring the safety of the fresh air device in real time.

[0060] Preferably, in this embodiment S2A, the warning information includes first warning information;

[0061] S2A includes:

[0062] S2A1: When the indoor oxygen concentration data is lower than the life safety value, the fresh air device is controlled to perform fresh air exchange according to a preset maximum air volume, and the first alarm information is sent to the environment where the fresh air device is located.

[0063] When the indoor oxygen concentration data is lower than the life safety value, it means that the current oxygen concentration environment will endanger life safety. At this time, the automatic control of the fresh air device directly performs fresh air exchange according to the preset maximum air volume, which can quickly increase the indoor oxygen concentration to the life safety value and avoid the low oxygen concentration environment from endangering life safety; by sending the first alarm information to the interior of the environment where the fresh air device is located (i.e., indoors, hereinafter referred to as indoors), the indoor users can be notified in time to inform that their life safety is being threatened, so that the users can take corresponding solutions in time, such as opening doors and windows, paying real-time attention to whether the oxygen concentration after fresh air exchange has risen to the life safety value, checking whether the fresh air device performs fresh air exchange according to the preset maximum air volume, evacuating the current indoor environment, etc. Through the above safety mechanism, fresh air control can be performed in an environment with low oxygen concentration, including alarm and air exchange, to ensure the safety of users using the fresh air device.

[0064] In actual environments, the effects of different low oxygen concentration environments on humans are as follows:

[0065] 19.5% concentration: This is the minimum concentration of oxygen that the human body can withstand. Below this concentration, the human body may feel uncomfortable;

[0066] 15-19% concentration: If you stay in this concentration range for a long time, your work efficiency will decrease and it may cause problems with your head, lungs and circulatory system.

[0067] 12-15% concentration: People's reaction speed will be significantly slowed down;

[0068] 10-12% concentration: It can cause breathing difficulties, faster pulse, uncoordinated movements, and even dizziness and loss of judgment.

[0069] 8-10% concentration: It can cause nausea, vomiting, unconsciousness, and lips may turn purple;

[0070] 6-8% concentration: If a person stays in this concentration range for 4-8 minutes, the brain may be damaged and death may occur within 8 minutes;

[0071] Concentration below 6%: A person may become comatose, stop breathing, and subsequently die within 40 seconds within this concentration range.

[0072] Specifically, the life safety value can be pre-set according to actual conditions, for example, set to an oxygen concentration of 19%. That is, when the collected indoor oxygen concentration data is lower than 19%, the fresh air device is controlled to perform fresh air exchange and issue a first alarm message.

[0073] Furthermore, the warning information also includes second warning information;

[0074] After S2A1, the method further includes:

[0075] S2A2: after the fresh air device performs fresh air exchange according to the preset maximum air volume for a preset time, reacquire the indoor oxygen concentration data, and determine whether the reacquired indoor oxygen concentration data rises to the life safety value;

[0076] S2A3a: If yes, stop issuing the first alarm information, and continue to control the fresh air device to perform fresh air exchange according to the preset maximum air volume;

[0077] S2A3b: Otherwise, determine whether a first response signal is received from an indoor user inside the environment where the fresh air device is located; when the first response signal is received, stop issuing the first alarm message, and continue to control the fresh air device to exchange fresh air according to the preset maximum air volume; when the first response signal is not received and the preset time reaches the first set time, continue to issue the first alarm message, and continue to control the fresh air device to exchange fresh air according to the preset maximum air volume, and at the same time use the wireless network to issue the second alarm message to a first associated user outside the environment where the fresh air device is located.

[0078] When the fresh air device exchanges fresh air according to the preset maximum air volume, the indoor oxygen concentration will change. At this time, after the preset time of fresh air exchange, the alarm method can be further refined based on the comparison between the re-collected indoor oxygen concentration data and the life safety value, which can optimize the safety mechanism and further improve the safety of the fresh air device.

[0079] Among them, when the re-collected indoor oxygen concentration data rises to the life safety value, it means that after the fresh air exchange of the fresh air device, the life safety threat caused by the indoor oxygen concentration has been resolved, and the first alarm information can be stopped. However, since the indoor oxygen concentration data has not reached the same level as the outdoor oxygen concentration data, the air quality at this time is still not optimal, so the fresh air device continues to be controlled to perform fresh air exchange according to the preset maximum air volume, and the subsequent fresh air control strategy is executed according to the situation that the re-collected indoor oxygen concentration data is not lower than the life safety value, that is, it is executed according to the control method described in S2B of this embodiment. When the re-collected indoor oxygen concentration data still does not rise to the life safety value, on the one hand, the fresh air device continues to be controlled to perform fresh air exchange according to the preset maximum air volume to eliminate the life safety threat as soon as possible; on the other hand, it is determined whether the first response signal sent by the indoor user is received to determine whether the indoor user is aware of the current indoor oxygen concentration environment and responds. When the first response signal sent by the indoor user is received, it means that the indoor user has known the current indoor oxygen concentration environment and responded, and can take corresponding solutions by himself, then the first alarm information can be stopped and the first level alarm is completed; and when the first response signal sent by the indoor user is still not received when the preset time reaches the first set time, it means that the indoor user still does not know the current indoor oxygen concentration environment after a long time and has not responded, then it is necessary to continue to send the first alarm information to continuously notify the indoor user, and at the same time, it is necessary to use the wireless network to send the second alarm information to notify the first associated user in the environment, the first associated user is also the associated user of the indoor user, usually the family member, relative or neighbor of the indoor user, etc., and the second level alarm is realized on the basis of the first level alarm to avoid the situation where the indoor user is unable to respond (such as sleeping or comatose) and promptly notify the family member, relatives or neighbors of the indoor user to take corresponding solutions (such as notifying the indoor user by phone, calling the police, and personally rushing to the indoor environment as soon as possible to rescue the indoor user, etc.).

[0080] Specifically, the first warning information of this embodiment may be a sound alarm signal, sound and light alarm information, etc.

[0081] Specifically, the first response signal sent by the indoor user of this embodiment can be realized through the operation button of the fresh air device (such as the touch button or mechanical button on the screen set by the fresh air device), or it can be realized by a user terminal separately configured by the indoor user (such as a mobile phone, tablet computer, etc.). The user terminal is in a communication connection state with the fresh air control system of the entire fresh air device, and can send and receive signals with each other.

[0082] Specifically, the first associated user of this embodiment can receive the second alarm information sent by the wireless network through a configured user terminal (such as a mobile phone, tablet computer, etc.). The user terminal is also in a communication connection with the fresh air control system of the entire fresh air device and can send and receive signals to each other.

[0083] Furthermore, the warning information also includes third warning information;

[0084] In S2A3b, when the first response signal is not received and the preset time reaches the first set time, the first alarm information is continuously issued, and the fresh air device is continuously controlled to perform fresh air exchange according to the preset maximum air volume, and at the same time, the second alarm information is issued to a first associated user outside the environment where the fresh air device is located by using a wireless network, the method further includes:

[0085] S2A3b1: Waiting to receive a second response signal sent by the first associated user;

[0086] S2A3b2: When the waiting time reaches the second set time, use the wireless network to send the third alarm information to the second associated user outside the environment where the fresh air device is located; when the waiting time does not reach the second set time, continue to wait for receiving the second response signal.

[0087] After a second-level alarm is issued based on a first-level alarm, whether a further alarm is needed is determined by receiving the second response signal sent by the first associated user. Among them, when the waiting time for receiving the second response signal reaches the second set time, it means that the first associated user's response time is too long, and the second corresponding signal has not been received before the second set time, which is not conducive to the rescue of indoor users. At this time, it is necessary to use a wireless network to send a third alarm message to the second associated user (usually property, 110 linkage system, etc.) outside the environment where the fresh air device is located, so as to promptly notify the second associated user to take corresponding solutions, and realize a third-level alarm based on the second-level alarm, so as to further ensure the safety of the fresh air device. When the waiting time for receiving the second response signal does not reach the second set time, continue to wait for receiving the second response signal, and choose whether to issue a third-level alarm based on the situation of waiting for reception.

[0088] Specifically, the second response signal sent by the first associated user of this embodiment can also be implemented by a user terminal (such as a mobile phone, tablet computer, etc.) configured separately by the first associated user. The user terminal is also in a communication connection with the fresh air control system of the entire fresh air device and can send and receive signals with each other.

[0089] Specifically, the second associated user of this embodiment is similar to the first associated user. The second associated user can receive the third alarm information sent by the wireless network through a configured user terminal (such as a mobile phone, tablet computer, etc.). The user terminal is also in a communication connection state with the fresh air control system of the entire fresh air device, and can send and receive signals to each other.

[0090] The first set time and the second set time mentioned above can be pre-set and adjusted according to actual conditions and are not limited here.

[0091] Preferably, when the indoor oxygen concentration data is not lower than the life safety value, in this embodiment S2B, controlling the fresh air device according to the outdoor oxygen concentration data and the indoor oxygen concentration data includes:

[0092] 2B1: when the indoor oxygen concentration data is lower than the outdoor oxygen concentration data, and a first concentration difference between the outdoor oxygen concentration data and the indoor oxygen concentration data is greater than a first preset threshold, controlling the fresh air device to perform fresh air exchange according to a first preset ventilation strategy;

[0093] 2B2: When the indoor oxygen concentration data is lower than the outdoor oxygen concentration data, and the first concentration difference is less than or equal to the first preset threshold, control the fresh air device to turn off the fresh air exchange.

[0094] When the indoor oxygen concentration data is not lower than the life safety value, it means that the current indoor oxygen concentration will not pose a life safety threat. Whether it is necessary to control the fresh air exchange at this time depends on the comparison between the indoor oxygen concentration data and the outdoor oxygen concentration data. Among them, when the indoor oxygen concentration data is lower than the outdoor oxygen concentration data and the first concentration difference between the outdoor oxygen concentration data and the indoor oxygen concentration data is greater than the first preset threshold value, it means that the indoor oxygen concentration is low (i.e., the indoor oxygen concentration is in a state of hypoxia) and the air quality is poor, and fresh air exchange is required to improve the air quality. Then, the fresh air device is controlled to perform fresh air exchange according to the first preset ventilation strategy; and when the indoor oxygen concentration data is lower than the outdoor oxygen concentration data and the first concentration difference between the outdoor oxygen concentration data and the indoor oxygen concentration data is less than or equal to the first preset threshold value, it means that although the indoor oxygen concentration is low (i.e., the indoor oxygen concentration is in a state of hypoxia), the air quality will not be too bad, and there is no need to improve the control instruction through fresh air exchange. Then, the fresh air device is controlled to turn off the fresh air exchange, which can achieve energy saving.

[0095] In this embodiment, when the indoor oxygen concentration data is not lower than the life safety value, fresh air control is performed through the above control method, which can effectively save energy and avoid waste of resources while ensuring air quality.

[0096] Specifically, in S2B1, the fresh air device is controlled to perform fresh air exchange according to the first preset ventilation strategy, including:

[0097] S2B11: determining a hypoxia level according to the first concentration difference, and determining a first ventilation air volume according to the hypoxia level;

[0098] S2B12: Control the fresh air device to perform fresh air exchange according to the first ventilation air volume.

[0099] When the room is hypoxic and fresh air exchange is needed, the hypoxia level is determined according to the specific value of the first concentration difference, and the corresponding first ventilation air volume is determined according to the different hypoxia levels. Finally, fresh air exchange is performed according to the determined first ventilation air volume. This can accurately perform targeted fresh air exchange according to the actual situation of the current indoor oxygen concentration. On the one hand, it can improve the ventilation efficiency, ensure that the fresh air device works with the most appropriate ventilation air volume, minimize energy consumption, reduce the operating load of the fresh air device, and extend the service life of the equipment. On the other hand, it can also avoid the impact of excessive airflow on the indoor environment, which helps to improve indoor comfort.

[0100] Specifically, in an optional embodiment of S2B11, multiple hypoxia levels can be set according to the first concentration difference, for example, three hypoxia levels: low hypoxia, moderate hypoxia, and high hypoxia, and then a fixed ventilation volume is set for each hypoxia level. When the specific hypoxia level is determined, fresh air exchange is performed according to the corresponding ventilation volume.

[0101] Specifically, in another optional embodiment of S2B11, a PID control method can also be used to implement it. The hypoxia level is used as the input variable of the PID controller, and the ventilation air volume is used as the output variable of the PID controller. The corresponding relationship between the hypoxia level and the ventilation air volume is input into the memory of the PID controller through experimental or empirical data. In the actual control process, the first ventilation air volume can be determined according to the hypoxia level.

[0102] Preferably, when the indoor oxygen concentration data is not lower than the life safety value, in this embodiment S2B, controlling the fresh air device according to the outdoor oxygen concentration data and the indoor oxygen concentration data further includes:

[0103] S2B3: when the indoor oxygen concentration data is not lower than the outdoor oxygen concentration data, and a second concentration difference between the indoor oxygen concentration data and the outdoor oxygen concentration data is greater than a second preset threshold, controlling the fresh air device to perform fresh air exchange according to a second preset ventilation strategy;

[0104] S2B4: When the indoor oxygen concentration data is not lower than the outdoor oxygen concentration data, and the second concentration difference is less than or equal to the second preset threshold, control the fresh air device to turn off the fresh air exchange.

[0105] Similar to the aforementioned S2B1 to S2B2, when the indoor oxygen concentration data is not lower than the life safety value, it means that the current indoor oxygen concentration will not pose a life safety threat. Whether it is necessary to control the fresh air exchange at this time depends on the comparison between the indoor oxygen concentration data and the outdoor oxygen concentration data. Since the indoor oxygen concentration cannot be too low (i.e. the indoor air cannot be in a state of hypoxia) or too high (i.e. the indoor air cannot be in a state of overoxygenation), indoor personnel will also feel uncomfortable when the indoor oxygen concentration is too high; therefore, when the indoor oxygen concentration data is not lower than the outdoor oxygen concentration data and the second concentration difference between the indoor oxygen concentration data and the outdoor oxygen concentration data is greater than the second preset threshold value, it means that the indoor oxygen concentration is relatively high (i.e. the indoor air is in a state of overoxygenation) and will cause discomfort to indoor users, and fresh air exchange is required to improve the air quality. The fresh air device is controlled to perform fresh air exchange according to the second preset ventilation strategy; and when the indoor oxygen concentration data is not lower than the outdoor oxygen concentration data and the second concentration difference between the indoor oxygen concentration data and the outdoor oxygen concentration data is less than or equal to the second preset threshold value, it means that although the indoor oxygen concentration is relatively high (i.e. the indoor air is in a state of overoxygenation), it will not cause discomfort to indoor users. There is no need to improve the control instructions through fresh air exchange. The fresh air device is controlled to turn off the fresh air exchange, which can also achieve energy saving.

[0106] Similar to the aforementioned S2B1 to S2B2, in this embodiment, when the indoor oxygen concentration data is not lower than the life safety value, fresh air control is performed through the above-mentioned control method, which can also effectively save energy and avoid waste of resources while ensuring air quality.

[0107] Specifically, in S2B3, the fresh air device is controlled to perform fresh air exchange according to the second preset ventilation strategy, including:

[0108] S2B31: determining an oxygen level according to the second concentration difference, and determining a second ventilation air volume according to the oxygen level;

[0109] S2B32: Control the fresh air device to perform fresh air exchange according to the second ventilation air volume.

[0110] Similar to the aforementioned S2B11 to S2B12, when the room is in an overoxygen state and fresh air exchange is required, the overoxygen level is determined according to the specific value of the second concentration difference, and then the corresponding second ventilation air volume is determined according to the different overoxygen levels. Finally, fresh air exchange is performed according to the determined second ventilation air volume. This can accurately perform targeted fresh air exchange based on the actual situation of the current indoor oxygen concentration. On the one hand, it can also improve the ventilation efficiency, ensure that the fresh air device works with the most appropriate ventilation air volume, minimize energy consumption, reduce the operating load of the fresh air device, and extend the service life of the equipment; on the other hand, it can also avoid the impact of excessive airflow on the indoor environment, which helps to improve indoor comfort.

[0111] The specific implementation of the above S2B31 can be the same as the implementation of the above S2B11, which will not be repeated here. Among them, the first preset threshold and the second preset threshold can be pre-set and adjusted according to actual conditions, and are not limited here.

[0112] The complete process of the fresh air control method of the fresh air device of this embodiment is as follows: Figure 2 As shown, according to Figure 2 The described fresh air control method sets up multiple levels of safety mechanisms for the environment in which the fresh air device is located. It not only performs alarms and air exchange in an environment of low oxygen concentration, thereby eliminating life threats and promptly informing the user of the current oxygen concentration; it can also perform reasonable fresh air control based on the actual situation of indoor oxygen concentration, thereby fully ensuring the safety of users using the fresh air device.

[0113] Embodiment 2

[0114] A fresh air control system for a fresh air device is applied to the fresh air control method for the fresh air device in the first embodiment, such as Figure 3 As shown, the system comprises:

[0115] The first data acquisition module is used to collect indoor oxygen concentration data in the environment where the fresh air device is located in real time;

[0116] A first control module, used for controlling the fresh air device to perform fresh air exchange when the indoor oxygen concentration data is lower than the life safety value;

[0117] An alarm module, used for issuing an alarm message when the indoor oxygen concentration data is lower than the life safety value;

[0118] A second data collection module is used to collect outdoor oxygen concentration data outside the environment where the fresh air device is located in real time when the indoor oxygen concentration data is not lower than the life safety value;

[0119] The second control module is used to control the fresh air device according to the collected outdoor oxygen concentration data and the indoor oxygen concentration data when the indoor oxygen concentration data is not lower than the life safety value.

[0120] In this embodiment, by collecting indoor oxygen concentration data in real time through the first data acquisition module, real-time monitoring of the oxygen concentration inside the environment where the current fresh air device is located can be achieved. By comparing it with the life safety value, it can be determined whether the current oxygen concentration environment will endanger life safety; if the indoor oxygen concentration data is lower than the life safety value, it means that the current oxygen concentration environment will endanger life safety. It is necessary not only to automatically control the fresh air device to exchange fresh air through the first control module, but also to issue an alarm message through the alarm module. The current oxygen concentration environment can be quickly improved through automatic fresh air exchange to eliminate the life threat as soon as possible, and the alarm message issued can be promptly informed to the users of the indoor environment to ensure that the users are aware of the current indoor environment and take corresponding solutions; if the indoor oxygen concentration data is not lower than the life safety value, it is necessary to further collect outdoor oxygen concentration data outside the environment where the fresh air device is located through the second data acquisition module, and determine a reasonable control strategy for the fresh air device based on the comparison of the outdoor oxygen concentration data with the indoor oxygen concentration data through the second control module.

[0121] The fresh air control system of the fresh air device of this embodiment is equipped with a safety mechanism according to the environment in which the fresh air device is located. It not only performs alarms and air exchange in an environment of low oxygen concentration, thereby eliminating life threats and promptly informing the user of the current oxygen concentration; it can also perform reasonable fresh air control based on the actual situation of indoor oxygen concentration, thereby fully ensuring the safety of users using the fresh air device.

[0122] The functions of each module in the fresh air control system of the fresh air device described in this embodiment are the same as the method steps of the fresh air control method of the fresh air device described in Example 1. Therefore, for the details not covered in this embodiment, please refer to Example 1 and Figure 1 to Figure 2 The detailed description will not be repeated here.

[0123] Embodiment 3

[0124] This embodiment also provides a fresh air control device, including a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the method steps in the fresh air control method for the fresh air device of the first embodiment when executed.

[0125] Through a computer program stored in the memory and running on the processor, a safety mechanism is set up for the environment in which the fresh air device is located. It not only issues an alarm and air exchange in an environment of low oxygen concentration, thus eliminating life threats and promptly informing the user of the current oxygen concentration; it can also perform reasonable fresh air control based on the actual situation of indoor oxygen concentration, fully ensuring the safety of users using the fresh air device.

[0126] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of a computer device, and uses various interfaces and lines to connect various parts of the entire computer device.

[0127] The memory can be used to store computer programs and / or models. The processor realizes various functions of the computer device by running or executing the computer programs and / or models stored in the memory, and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required for a function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone (such as audio data, video data, etc.). In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (SmartMedia Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0128] It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by a computer program. These computer programs can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0129] These computer programs may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0130] These computer programs can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0131] This embodiment further provides a computer storage medium, which includes: at least one instruction, which implements the method steps in the fresh air control method of the fresh air device of embodiment 1 when the instruction is executed by the computer.

[0132] By executing a computer storage medium containing at least one instruction, a safety mechanism is set for the environment in which the fresh air device is located. Not only is an alarm and air exchange performed in an environment of low oxygen concentration, which eliminates life threats and promptly informs the user of the current oxygen concentration; it is also possible to perform reasonable fresh air control based on the actual situation of indoor oxygen concentration, fully ensuring the safety of users using the fresh air device.

[0133] Similarly, for details not yet provided in this embodiment, please refer to Embodiment 1, Embodiment 2 and Figures 1 to 3 The detailed description will not be repeated here.

[0134] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A fresh air control method for a fresh air device, characterized in that: The method comprises: Real-time collection of indoor oxygen concentration data inside the environment where the fresh air device is located; When the indoor oxygen concentration data is lower than the life safety value, the fresh air device is controlled to perform fresh air exchange and issue an alarm message; When the indoor oxygen concentration data is not lower than the life safety value, the outdoor oxygen concentration data outside the environment where the fresh air device is located is collected in real time; and the fresh air device is controlled according to the outdoor oxygen concentration data and the indoor oxygen concentration data.

2. The fresh air control method of the fresh air device according to claim 1, characterized in that: The warning information includes first warning information; When the indoor oxygen concentration data is lower than the life safety value, controlling the fresh air device to perform fresh air exchange and issuing an alarm message includes: When the indoor oxygen concentration data is lower than the life safety value, the fresh air device is controlled to perform fresh air exchange according to a preset maximum air volume, and the first alarm information is sent to the environment where the fresh air device is located.

3. The fresh air control method of the fresh air device according to claim 2, characterized in that: The warning information also includes second warning information; After controlling the fresh air device to perform fresh air exchange according to the preset maximum air volume and sending the first alarm information to the environment where the fresh air device is located, the method further includes: After the fresh air device performs fresh air exchange according to the preset maximum air volume for a preset time, reacquiring the indoor oxygen concentration data, and determining whether the reacquired indoor oxygen concentration data rises to the life safety value; If yes, stop issuing the first alarm information, and continue to control the fresh air device to perform fresh air exchange according to the preset maximum air volume; Otherwise, determine whether a first response signal is received from an indoor user inside the environment where the fresh air device is located; when the first response signal is received, stop issuing the first alarm message, and continue to control the fresh air device to exchange fresh air according to the preset maximum air volume; when the first response signal is not received and the preset time reaches the first set time, continue to issue the first alarm message, and continue to control the fresh air device to exchange fresh air according to the preset maximum air volume, and at the same time use the wireless network to issue the second alarm message to a first associated user outside the environment where the fresh air device is located.

4. The fresh air control method of the fresh air device according to claim 3, characterized in that: The warning information also includes third warning information; When the first response signal is not received and the preset time reaches the first set time, the first alarm information is continuously issued, and the fresh air device is continuously controlled to perform fresh air exchange according to the preset maximum air volume, and the second alarm information is issued to a first associated user outside the environment where the fresh air device is located by using a wireless network, the method further includes: Waiting to receive a second response signal sent by the first associated user; When the waiting time reaches a second set time, the third alarm information is sent to a second associated user outside the environment where the fresh air device is located using the wireless network; when the waiting time does not reach the second set time, continue to wait for receiving the second response signal.

5. The fresh air control method of the fresh air device according to claim 1, characterized in that: The controlling the fresh air device according to the outdoor oxygen concentration data and the indoor oxygen concentration data comprises: When the indoor oxygen concentration data is lower than the outdoor oxygen concentration data, and a first concentration difference between the outdoor oxygen concentration data and the indoor oxygen concentration data is greater than a first preset threshold, controlling the fresh air device to perform fresh air exchange according to a first preset ventilation strategy; When the indoor oxygen concentration data is lower than the outdoor oxygen concentration data, and the first concentration difference is less than or equal to the first preset threshold, the fresh air device is controlled to turn off the fresh air exchange.

6. The fresh air control method of the fresh air device according to claim 5, characterized in that: The step of controlling the fresh air device to perform fresh air exchange according to the first preset ventilation strategy includes: determining a hypoxia level according to the first concentration difference, and determining a first ventilation air volume according to the hypoxia level; According to the first ventilation air volume, the fresh air device is controlled to perform fresh air exchange.

7. The fresh air control method of the fresh air device according to claim 5, characterized in that: The controlling of the fresh air device according to the outdoor oxygen concentration data and the indoor oxygen concentration data also includes: When the indoor oxygen concentration data is not lower than the outdoor oxygen concentration data, and a second concentration difference between the indoor oxygen concentration data and the outdoor oxygen concentration data is greater than a second preset threshold, controlling the fresh air device to perform fresh air exchange according to a second preset ventilation strategy; When the indoor oxygen concentration data is not lower than the outdoor oxygen concentration data, and the second concentration difference is less than or equal to the second preset threshold, the fresh air device is controlled to turn off the fresh air exchange.

8. The fresh air control method of the fresh air device according to claim 7, characterized in that: The step of controlling the fresh air device to perform fresh air exchange according to the second preset ventilation strategy includes: determining an excess oxygen level according to the second concentration difference, and determining a second ventilation air volume according to the excess oxygen level; According to the second ventilation air volume, the fresh air device is controlled to perform fresh air exchange.

9. A fresh air control system for a fresh air device, characterized in that: In the fresh air control method for the fresh air device according to any one of claims 1 to 8, the system comprises: The first data acquisition module is used to collect indoor oxygen concentration data in the environment where the fresh air device is located in real time; A first control module, used for controlling the fresh air device to perform fresh air exchange when the indoor oxygen concentration data is lower than the life safety value; An alarm module, used for issuing an alarm message when the indoor oxygen concentration data is lower than the life safety value; A second data collection module is used to collect outdoor oxygen concentration data outside the environment where the fresh air device is located in real time when the indoor oxygen concentration data is not lower than the life safety value; The second control module is used to control the fresh air device according to the collected outdoor oxygen concentration data and the indoor oxygen concentration data when the indoor oxygen concentration data is not lower than the life safety value.

10. A fresh air control device, characterized in that: It comprises a processor, a memory and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed, the method steps in the fresh air control method for the fresh air device as described in any one of claims 1 to 8 are implemented.

11. A computer storage medium, characterized in that: The computer storage medium includes: at least one instruction, which implements the method steps in the fresh air control method of the fresh air device according to any one of claims 1 to 8 when the instruction is executed by the computer.

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