Plateau-area-oriented oxygen supply dynamic regulation and control method, system and device and computer equipment

Abstract

The invention relates to the technical field of control, and discloses an oxygen supply dynamic regulation and control method, system and device for a plateau district and computer equipment, and the method comprises the steps: carrying out the first-stage oxygen supply for an indoor room through a first oxygen supply operation corresponding to a first oxygen supply flow under the condition that there is no person in the indoor room; after the indoor real-time oxygen content reaches the target oxygen volume fraction, if people move in the indoor room and the indoor room is in a ventilation state, second-stage oxygen supply is carried out on the indoor room through second oxygen supply operation corresponding to second oxygen supply flow, so that the indoor real-time oxygen content is kept stable at the target oxygen volume fraction; and the second oxygen supply flow is corrected by using the number of indoor people, the indoor activity type and the indoor real-time carbon dioxide content which are monitored in real time, and the difference value between the indoor real-time oxygen content and the target oxygen volume fraction is kept within the target threshold value range. Finally, the oxygen supply regulation and control method for dynamically controlling the indoor oxygen supply flow of the plateau area based on the environment parameter data monitored in real time is achieved.

Description

Technical Field

[0001] The present application relates to the field of control technology, and in particular to a method, system, device and computer equipment for dynamic oxygen supply control in plateau areas. Background Art

[0002] Oxygen is essential for human survival. At an average altitude of over 3,000 meters, plateau regions experience significantly lower atmospheric pressure and oxygen partial pressure than on plains, with oxygen concentrations dropping to 60%-70% of sea level. Long-term exposure to low oxygen levels can easily lead to altitude sickness, manifesting as headaches, difficulty breathing, and sleep disturbances. In severe cases, it can lead to life-threatening complications such as pulmonary and cerebral edema. Therefore, the need for oxygen supply in plateau regions is urgent.

[0003] However, the oxygen supply control methods in plateau areas in the relevant technologies still have limitations, and there is a need for an oxygen supply control method that can accurately control the indoor oxygen concentration in plateau areas. Summary of the Invention

[0004] This application aims to solve, at least to some extent, one of the technical problems in the related art. To this end, this application proposes a method, system, device, and computer equipment for dynamic oxygen supply control in plateau areas. The main technical solutions adopted in this application include:

[0005] In a first aspect, an embodiment of the present application provides a dynamic oxygen supply control method for plateau areas, which is applied to indoor rooms in plateau areas; the method includes: when the indoor room is unoccupied and in a closed state, performing a first-stage oxygen supply to the indoor room through a first oxygen supply operation corresponding to a first oxygen supply flow rate, and determining the real-time indoor oxygen content of the indoor room; after the real-time indoor oxygen content reaches the target oxygen volume fraction, if there are people moving in the indoor room and it is in a ventilated state, performing a second-stage oxygen supply to the indoor room through a second oxygen supply operation corresponding to a second oxygen supply flow rate, so as to keep the real-time indoor oxygen content stable at the target oxygen volume fraction; determining the number of indoor people, the type of indoor activities and the real-time indoor carbon dioxide content monitored in real time in the indoor room; and using the real-time monitored number of indoor people, the type of indoor activities and the real-time indoor carbon dioxide content to correct the second oxygen supply flow rate to maintain the difference between the real-time indoor oxygen content and the target oxygen volume fraction within the target threshold range.

[0006] In a second aspect, an embodiment of the present application provides a dynamic oxygen supply control system for plateau areas, which is applied to indoor rooms in plateau areas; the control system includes a sensor module, a control module and an execution module; the control module is communicated with the sensor module and the execution module respectively; the sensor module is used to monitor indoor and outdoor environmental parameters and personnel activity data in real time; wherein, indoor and outdoor environmental parameters include indoor temperature, oxygen concentration and carbon dioxide concentration; personnel activity data includes the number of people in the indoor room and the type of activity; the control module is used to execute the above-mentioned dynamic oxygen supply control method for plateau areas; the execution module is used to control the oxygen storage device to supply oxygen to the indoor room at a first oxygen supply flow rate, or to control the flow regulating valve of the oxygen storage device to facilitate the supply of oxygen to the indoor room at a second oxygen supply flow rate.

[0007] In a third aspect, an embodiment of the present application provides a dynamic oxygen supply control device for plateau areas, which is applied to indoor rooms in plateau areas; the device includes: a first-stage oxygen supply module, which is used to supply first-stage oxygen to the indoor room through a first oxygen supply operation corresponding to a first oxygen supply flow rate when the indoor room is empty and in a closed state, and determine the real-time indoor oxygen content of the indoor room; a second-stage oxygen supply module, which is used to supply second-stage oxygen to the indoor room through a second oxygen supply operation corresponding to a second oxygen supply flow rate after the real-time indoor oxygen content reaches the target oxygen volume fraction, if there are people moving in the indoor room and it is in a ventilated state, so as to keep the real-time indoor oxygen content stable at the target oxygen volume fraction; an indoor situation determination module, which is used to determine the real-time monitored number of indoor people, indoor activity type and indoor real-time carbon dioxide content in the indoor room; an indoor oxygen maintenance module, which is used to use the real-time monitored number of indoor people, indoor activity type and indoor real-time carbon dioxide content to correct the second oxygen supply flow rate to maintain the difference between the real-time indoor oxygen content and the target oxygen volume fraction within the target threshold range.

[0008] In a fourth aspect, the present application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of any of the above methods when executing the computer program.

[0009] In a fifth aspect, the present application also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of any of the above methods are implemented.

[0010] In a sixth aspect, the present invention provides a computer program product, comprising a computer program, which implements the steps of any of the above methods when executed by a processor.

[0011] In the above embodiment, a staged oxygen supply method is used. First, when no one is inside the room, a first oxygen supply operation is performed, pre-supplied at a constant first oxygen flow rate, to ensure that the indoor oxygen volume fraction reaches the target value. Then, after the real-time indoor oxygen content reaches the target oxygen volume fraction, a second stage of oxygen supply is performed. During this second stage, the second oxygen flow rate corresponding to the second stage of oxygen supply is dynamically updated and regulated based on real-time monitored environmental parameter data to maintain the difference between the real-time indoor oxygen content and the target oxygen volume fraction within the target threshold range, thereby achieving precise optimization and dynamic regulation of the indoor oxygen flow rate in plateau areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0013] Figure 1 This is a flow chart of a method for dynamic oxygen supply control in plateau areas according to an embodiment of the present application;

[0014] Figure 2 This is a flow chart of a method for determining a first oxygen supply flow rate according to an embodiment of the present application;

[0015] Figure 3 This is a flow chart of a method for determining a first basic oxygen supply flow rate according to an embodiment of the present application;

[0016] Figure 4 This is a flow chart of a method for determining a second oxygen supply flow rate according to an embodiment of the present application;

[0017] Figure 5a A dynamic response curve diagram of ventilation rate provided according to an embodiment of the present application;

[0018] Figure 5b A second oxygen supply flow dynamic response curve diagram provided according to an embodiment of the present application;

[0019] Figure 6 This is a scene example diagram of a dynamic oxygen supply control system for plateau areas provided according to an embodiment of the present application;

[0020] Figure 7 This is a structural block diagram of a dynamic oxygen supply control device for plateau areas according to an embodiment of the present application;

[0021] Figure 8 The figure is a diagram of the internal structure of a computer device according to one embodiment of the present application. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0023] Oxygen is essential for human survival. At an average altitude of over 3,000 meters, plateau regions experience significantly lower atmospheric pressure and oxygen partial pressure than on plains, with oxygen concentrations dropping to 60%-70% of sea level. Long-term exposure to low oxygen levels can easily lead to acute and chronic altitude sickness, manifesting with symptoms such as headaches, dyspnea, and sleep disturbances. In severe cases, it can lead to life-threatening complications such as pulmonary and cerebral edema. Therefore, the need for oxygen supply in plateau regions is urgent.

[0024] The oxygen supply method in the related art mostly adopts a constant flow oxygen supply mode, which only calculates the oxygen supply based on a fixed number of people or area, and is unable to perceive the changes in the number of people and activity intensity in real time, and dynamically adjust the oxygen supply in combination with the actual use scenario of the room (such as intermittent use or personnel flow), which easily leads to excess or insufficient oxygen supply. For example, in the constant flow oxygen supply mode, if the number of people indoors increases or the activity intensity increases, the original oxygen supply flow will be insufficient to meet the indoor oxygen demand, which easily leads to hypoxia of the indoor people; on the contrary, if the number of people indoors decreases or the activity intensity decreases, the original oxygen supply flow will be excessive, resulting in a continuous increase in the indoor oxygen volume fraction, and even causing oxygen intoxication to the indoor people. Therefore, the traditional constant flow oxygen supply method cannot respond to indoor changes in real time and dynamically. Therefore, under this background, there is an urgent need for an oxygen supply method and system that can have both precise control, intelligent response and environmental adaptability, so as to better protect the health of plateau residents and support regional economic development.

[0025] Based on this, according to the embodiments of the present application, a method, system, device and computer equipment for dynamic control of oxygen supply in plateau areas are provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that here.

[0026] In this embodiment, a dynamic oxygen supply control method for plateau areas is provided, which is applied to indoor rooms in plateau areas. Figure 1 As shown, the method includes the following steps:

[0027] S110: When the indoor room is unoccupied and in a sealed state, perform a first-stage oxygen supply to the indoor room through a first oxygen supply operation corresponding to a first oxygen supply flow rate, and determine a real-time indoor oxygen content in the indoor room.

[0028] The first oxygen supply flow rate may refer to the constant oxygen supply rate calculated to increase the indoor oxygen content from an initial value to a target value during the first phase of an unoccupied and sealed indoor room in a high-altitude area. Specifically, the first oxygen supply flow rate may be calculated based on various environmental parameters of the indoor room, such as the effective indoor volume, oxygen supply time, initial oxygen volume fraction, target oxygen volume fraction, and altitude correction factor. Furthermore, after determining the first oxygen supply flow rate, the first oxygen supply operation corresponding to the first phase may be executed to provide the first phase of oxygen supply to the indoor room in the high-altitude area. For example, an oxygen storage device such as a high-pressure oxygen cylinder or liquid oxygen tank may be provided in the room to provide an oxygen source, and a flow control valve may be provided on the oxygen storage device. When the first oxygen supply operation is required, the flow control valve may be used to precisely control the output of oxygen at the first phase oxygen supply flow rate, thereby evenly distributing oxygen throughout the enclosed space using a diffuse oxygen supply method, thereby performing the first phase of oxygen supply. Furthermore, a sensor may be installed in the room to monitor the indoor oxygen content at every moment in real time throughout the entire oxygen supply process.

[0029] S120: After the real-time indoor oxygen content reaches the target oxygen volume fraction, if there is human activity in the room and the room is in a ventilated state, a second stage of oxygen supply is performed to the room through a second oxygen supply operation corresponding to a second oxygen supply flow rate to keep the real-time indoor oxygen content stable at the target oxygen volume fraction.

[0030] The target oxygen volume fraction may refer to a target value of oxygen concentration suitable for indoor use by indoor occupants. Specifically, the target oxygen volume fraction may be determined based on the requirements for diffuse oxygen supply in indoor spaces in plateau regions. For example, the target oxygen volume fraction may be determined with reference to the requirements for diffuse oxygen supply (oxygen conditioning) in indoor spaces in plateau regions, as shown in Table 1 below.

[0031] Table 1 Oxygen concentration requirements for different levels of plateau diffuse oxygen supply space

[0032]

[0033] Furthermore, after the real-time indoor oxygen content reaches the target oxygen volume fraction, it can be determined that the indoor oxygen supply operation phase has entered the second phase from the first phase. In the second phase, if the indoor room is occupied and ventilated, a second oxygen supply operation is executed, that is, a second-phase oxygen supply is performed to the indoor room using a second oxygen flow rate. The second oxygen flow rate may refer to the oxygen supply rate required to maintain the real-time indoor oxygen content at the target oxygen volume fraction when the indoor room is ventilated and occupied. It should be understood that since the indoor environment is no longer a sealed environment in the second phase and human activity is expected, the second oxygen flow rate must also be calculated based on the oxygen consumption during human activity, the number of air changes per unit time in the room, and the real-time indoor and outdoor oxygen content. For example, taking a conference room in a highland area as an example, assume that a meeting is scheduled for the conference room, starting at 9:00 a.m., with an expected attendance of 30 people and a duration of one hour. Based on the number of attendees and the oxygen concentration requirement table, the target oxygen volume fraction to which the real-time indoor oxygen content must be raised during the first-phase oxygen supply operation can be calculated. Combined with the expected meeting duration and the oxygen consumption of 30 people attending the meeting, the second oxygen supply flow rate required for the second stage can be determined. Furthermore, after determining the second oxygen supply flow rate, the second oxygen supply operation corresponding to the second stage can be performed accordingly to carry out the second stage oxygen supply. For example, the flow control valve can also be adjusted to accurately control the stable output of oxygen according to the second stage oxygen supply flow rate. The data returned by the sensor is then monitored in real time to keep the real-time oxygen content in the room stable at the target oxygen volume fraction.

[0034] S130: Determine the number of people in the indoor room, the type of indoor activities, and the real-time carbon dioxide content in the indoor room monitored in real time.

[0035] It should be understood that during the second phase of indoor oxygen supply, although the second oxygen flow rate is determined based on the pre-booked number of occupants and activity types, occupants may enter and exit the room temporarily or activity intensity may fluctuate during the activity. These fluctuations can directly affect changes in the indoor gas concentration. For example, if the number of occupants increases or their activity level intensifies, the second-phase oxygen flow rate originally determined based on the pre-booked information may not meet their oxygen needs, causing the indoor oxygen concentration to gradually decrease and leading to hypoxia. Conversely, if the number of occupants decreases or their activity level slows while the oxygen supply remains unchanged, the indoor oxygen volume fraction may be too high, causing oxygen intoxication. Therefore, during the second phase, it is still necessary to monitor the number of occupants, the type of activity, and the real-time carbon dioxide content in the room in real time. For example, these can also be determined using various sensors. For example, a human infrared sensor can be used to determine the real-time number of occupants and activity type in the room, and a carbon dioxide gas sensor can be used to determine the real-time carbon dioxide content in the room.

[0036] S140: Using the real-time monitored number of indoor occupants, indoor activity types, and indoor real-time carbon dioxide content, correct the second oxygen supply flow rate to maintain the difference between the indoor real-time oxygen content and the target oxygen volume fraction within a target threshold range.

[0037] Among them, the target threshold value may refer to an ideal target interval of indoor oxygen content determined in advance based on the target oxygen volume fraction, that is, the target oxygen volume fraction and its allowable upper and lower deviation range interval. Specifically, after obtaining the number of indoor people and the type of indoor activities monitored in real time in the indoor room, the change in oxygen demand of the current indoor people can be evaluated accordingly. After obtaining the real-time indoor carbon dioxide content, the indoor air demand can be judged. Subsequently, based on the analysis results of the above dynamic demand, the second oxygen supply flow rate is flexibly adjusted so that the real-time indoor oxygen content is always near the target oxygen volume fraction that meets the appropriate oxygen concentration required when the indoor people use the indoor room. For example, if the number of indoor people increases, the level of human activity intensifies, or the carbon dioxide content increases, it indicates that the indoor oxygen consumption is fast, the oxygen demand increases, and the second oxygen supply flow rate needs to be increased. Otherwise, it indicates that the indoor oxygen demand decreases, and the second oxygen supply flow rate needs to be reduced.

[0038] In the above-described embodiment, a phased oxygen supply method is used. First, with no one indoors, a first oxygen supply operation is performed, pre-supplied at a constant first oxygen flow rate, to ensure that the indoor oxygen volume fraction reaches the target value. Then, after the real-time indoor oxygen content reaches the target oxygen volume fraction, a second phase of oxygen supply is performed. During this second phase, the second oxygen flow rate corresponding to the second phase of oxygen supply is dynamically updated and regulated based on real-time monitored environmental parameter data to maintain the difference between the real-time indoor oxygen content and the target oxygen volume fraction within a target threshold range, thereby achieving precise optimization and dynamic regulation of the indoor oxygen flow rate in plateau areas.

[0039] In some embodiments, the method further comprises: determining a target oxygen volume fraction and a target oxygen supply time, and determining the first oxygen supply flow rate based on the initial oxygen volume fraction of the indoor room, the target oxygen volume fraction, the target oxygen supply time, and the target altitude data.

[0040] Among them, the oxygen supply target time can be a predetermined time point when the indoor room needs to start being used. Specifically, the oxygen supply target time can be determined based on the scheduled use time of the room. For example, if the indoor room is prepared for a specific activity or event, such as a meeting or training, then the start time of the activity or event is the oxygen supply target time. Exemplarily, the oxygen supply target time can be set in advance by the user, or it can be automatically set based on the previous usage record of the indoor room. The target oxygen volume fraction refers to the target value of the appropriate oxygen concentration required for indoor personnel to use the indoor room. Specifically, the target oxygen volume fraction can be determined based on the indoor oxygen standard in the plateau area, the number of people expected to be accommodated in the indoor room, and the main activity type. Optionally, if the indoor room already has historical oxygen supply data in similar scenarios, the target value can also be set by referring to the oxygen volume fraction range that has been successfully used to ensure personnel activities in the past.

[0041] Furthermore, after obtaining the target oxygen volume fraction and the target oxygen supply time, it is necessary to determine the first oxygen supply flow rate based on the initial oxygen volume fraction, target oxygen volume fraction, target oxygen supply time and target altitude data of the indoor room. Among them, the initial oxygen volume fraction may refer to the original oxygen concentration content of the indoor room before the oxygen supply operation is performed. The target altitude data may refer to the altitude of the geographical location of the indoor room. Specifically, the target altitude data can be obtained by measuring the local atmospheric pressure with a barometer and converting it to altitude, or by referring to geographic information system data, or by calculating it using other scene parameters. Exemplarily, the target altitude data can be calculated by the following formula:

[0042]

[0043] Where K h Represents the target altitude data; g represents the acceleration of gravity; h represents the altitude of the indoor room; R' represents the specific gas constant of air; T represents the temperature of the indoor room.

[0044] It should be noted that altitude affects atmospheric pressure and oxygen partial pressure, which indirectly impacts indoor oxygen concentration and oxygen demand in plateau regions. Therefore, the oxygen flow rate calculated based on the actual environmental parameters of the plateau region needs to be corrected. Specifically, after determining the oxygen flow rate directly required at the indoor room's altitude, the target altitude data can be used to convert it into an equivalent volume flow rate under standard conditions, ultimately yielding the first oxygen flow rate.

[0045] In the above embodiment, by determining the target oxygen volume fraction and target oxygen supply time, combined with the initial oxygen volume fraction in the room and the target altitude data, a first oxygen flow rate can be accurately calculated, thereby ensuring that the indoor oxygen volume fraction is at an appropriate level at the target oxygen supply time. In particular, by taking into account the influence of geographical location and accurately mapping the oxygen supply demand in high-altitude environments into the standard flow rate calculation, the oxygen flow rate can be more accurately controlled to meet the oxygen supply demand at different altitudes in the plateau, ultimately improving the accuracy and effectiveness of oxygen supply.

[0046] In some embodiments, please refer to the attached Figure 2 , the first oxygen supply flow rate is determined by the following methods, including:

[0047] S210 , using the law of conservation of mass, and based on the initial oxygen volume fraction, establishing a first change model that describes the real-time oxygen content in the indoor room under a closed state.

[0048] The first change model may refer to a mathematical equation established based on the law of conservation of mass, which is used to describe the dynamic relationship between the real-time indoor oxygen content and time when oxygen is continuously supplied in a closed room (no ventilation and no human activity). For example, in an incompletely enclosed space at a high altitude, where oxygen is continuously supplied, assuming that the volume of the space is fixed and a constant pressure is maintained by exhaust, the law of conservation of mass can be used to determine the rate of change of the oxygen volume fraction as shown in the following formula:

[0049]

[0050] Where C(t) is the volume fraction of oxygen; Q is the volume of pure oxygen input per hour; and V is the volume of the mixed gas discharged.

[0051] Then, by separating the variables and integrating the above formula, we can get the following result:

[0052]

[0053] Furthermore, combining the above two formulas, the first variation model, that is, the formula for the variation of oxygen volume fraction C(t) with time, can be obtained as shown below:

[0054]

[0055] Where C0 represents the initial oxygen volume fraction in a fixed space.

[0056] S220: Solve a first variation model using the initial oxygen volume fraction, the target oxygen volume fraction, and the target oxygen supply time to obtain a first basic oxygen supply flow rate.

[0057] The first basic oxygen supply flow rate may refer to a plateau theoretical oxygen supply flow rate value obtained by solving the first variation model, that is, a volume flow rate that directly meets the oxygen supply demand at the plateau altitude.

[0058] Specifically, based on the first change model, according to the known scene elements and boundary conditions, that is, the initial oxygen volume fraction of the indoor room before the first oxygen supply operation is performed, the target oxygen volume fraction, and the target oxygen supply time, the first change model is reversely solved. For example, the calculation formula shown below can be obtained:

[0059]

[0060] Where Q1 represents the first basic oxygen supply flow rate; V represents the effective volume of the indoor room; T1 represents the oxygen supply time required from the start of the first oxygen supply operation to reaching the target oxygen volume fraction; C0 represents the initial oxygen volume fraction of the indoor room; and C1 represents the target oxygen volume fraction.

[0061] Furthermore, by solving the above formula, we can calculate the theoretical oxygen flow rate at plateau, which is also the first basic oxygen flow rate.

[0062] S230: Correct the first basic oxygen supply flow rate using the target altitude data to obtain a first oxygen supply flow rate.

[0063] It should be understood that due to the low air density in plateau areas, it is necessary to use the target altitude data to correct the first basic oxygen flow rate calculated based on the plateau environment, so as to convert it into the equivalent first oxygen flow rate under standard conditions. For example, the first oxygen flow rate can be calculated using the following formula:

[0064]

[0065] Where Q1 represents the first oxygen supply flow rate; V represents the effective volume of the indoor room; T1 represents the oxygen supply time required from the start of the first oxygen supply operation to reaching the target oxygen volume fraction; C0 represents the initial oxygen volume fraction of the indoor room; C1 represents the target oxygen volume fraction; K h Indicates target altitude data.

[0066] In the above embodiment, a first variation model of the dynamic change of the oxygen volume fraction in a confined space under plateau conditions is established, and the mathematical relationship between the pure oxygen input and the change in oxygen concentration is described by a differential equation, and the separation of variables method is used to integrate and solve it to obtain an analytical expression for the change of oxygen concentration over time. Then, based on the boundary conditions such as the initial oxygen volume fraction, the target value and the oxygen supply time, the model is reversely solved to obtain the first basic oxygen supply flow rate that meets the oxygen supply demand at the plateau altitude. Finally, the target altitude data is introduced, and the basic oxygen supply flow rate is adaptively corrected and converted into the oxygen supply flow rate under standard conditions. This process not only improves the accuracy of the oxygen supply calculation, but also enhances the environmental adaptability of the oxygen supply system, ensuring that indoor rooms at different altitudes can achieve oxygen supply targets efficiently and accurately.

[0067] In some embodiments, please refer to the attached Figure 3 Solving a first variation model based on the initial oxygen volume fraction, the target oxygen volume fraction, and the target oxygen supply time to obtain a first basic oxygen supply flow rate includes:

[0068] S310: Based on the oxygen supply target time and the target oxygen volume fraction, determine the oxygen supply requirement time required from the start of oxygen supply to the time when the real-time oxygen content in the room reaches the target oxygen volume fraction.

[0069] Among them, the oxygen supply demand duration can refer to the actual operation duration of the first stage of oxygen supply, that is, the specific time span required from the start of oxygen supply to the oxygen volume fraction reaching the target value. Similarly, the oxygen supply demand duration can be set in advance by the user, or it can be automatically set based on the previous usage record of the indoor room. It should be understood that the oxygen supply demand duration is different from the oxygen supply target time. The oxygen supply target time focuses on the time nodes related to the indoor usage plan. It can not only cover the oxygen supply time required from the start of oxygen supply to the indoor oxygen volume fraction reaching the target value, but may also include other goals or time periods related to the oxygen supply time, such as the time to maintain the target oxygen volume fraction after the end of oxygen supply or the oxygen supply time arrangement at different stages. The oxygen supply demand duration is the actual oxygen supply time required from the start of oxygen supply to the oxygen supply target time. For example, taking a conference room in a certain plateau area as an example, assuming that the conference room is scheduled to start at 9 o'clock in the morning, then 9 o'clock in the morning can be the oxygen supply target time. If the oxygen supply start time of the first stage is 6:00 a.m., then the three-hour period from 6:00 a.m. to 9:00 a.m. is the oxygen supply demand time.

[0070] S320: Using the initial oxygen volume fraction, the target oxygen volume fraction, and the oxygen supply demand duration, reversely solve the first change model to obtain a first basic oxygen supply flow rate.

[0071] Specifically, after determining the oxygen supply demand duration, the initial oxygen volume fraction and the target oxygen volume fraction can be directly substituted into the first variation model and reversely solved to obtain the first basic oxygen flow rate. For example, the first basic oxygen flow rate can be obtained by solving the following equation.

[0072]

[0073] Where Q 11 represents the first basic oxygen supply flow rate; V represents the effective volume of the indoor room; T1 represents the oxygen supply demand duration; C0 represents the initial oxygen volume fraction of the indoor room; C1 represents the target oxygen volume fraction.

[0074] For example, using the data of a conference room in Tibet as an example, assuming that the target time for oxygen supply in the conference room is 10:00 a.m., and the first stage of oxygen supply operation is expected to start at 6:00 a.m., the environmental parameters of oxygen supply in the conference room can be shown in Table 2 below:

[0075] Table 2 Environmental parameter data of conference room oxygen supply

[0076] Environmental parameters Numerical unit Altitude 4000 m Meeting room area 50 <![CDATA[m 2 ]]> Meeting room height 3 m Target oxygen volume fraction 25 ％ Oxygen supply demand duration 4 h

[0077] The initial oxygen volume fraction, target oxygen volume fraction and oxygen supply demand duration can be extracted from the table, and substituted into the first change model to calculate the corresponding first basic oxygen supply flow rate.

[0078] For example, the calculation process can be shown as follows:

[0079]

[0080] As can be seen from the formula, if you want to make the oxygen content in the conference room at 25% at 10 o'clock in the morning, and the first stage of oxygen supply operation starts at 6 o'clock in the morning, then the required first basic oxygen flow rate is 1.949Nm 3 / h.

[0081] Optionally, since the altitude directly affects the atmospheric pressure and oxygen partial pressure, thereby indirectly affecting the indoor oxygen concentration and oxygen supply demand in plateau areas, the first basic oxygen supply flow rate also needs to be adjusted in combination with the target altitude data of the geographical location of the indoor room.

[0082] For example, the target altitude data may be calculated based on the temperature data in Table 2 and the altitude data of the geographical location of the conference room, as shown in the following formula:

[0083]

[0084] As can be seen from the formula, at the geographical location of the conference room, the target altitude data is approximately 1 / 1.649. This target altitude data can then be used to correct the first basic oxygen flow rate. For example, the process can be shown as follows:

[0085] Q1=Q 11 ·K h =1.949×1 / 1.649=1.182Nm 3 / h

[0086] Finally, the first oxygen supply flow rate under standard conditions is 1.182Nm 3 / h.

[0087] In the above embodiment, by establishing a first variation model and using the initial oxygen volume fraction, target oxygen volume fraction, and oxygen supply demand duration to solve for the first basic oxygen flow rate, a theoretical basis is provided for oxygen supply in indoor rooms in plateau areas. Furthermore, the difference between the oxygen supply demand duration and the oxygen supply target time is taken into account to accurately determine the actual operation duration of the first stage of oxygen supply. Finally, the target altitude data is used to perform an equivalent correction on the first basic oxygen flow rate to obtain the first oxygen flow rate, effectively improving the accuracy and adaptability of oxygen supply.

[0088] In some embodiments, please refer to the attached Figure 4 , the method further comprises:

[0089] S410: Determine a target oxygen volume fraction and a target oxygen supply time.

[0090] The target oxygen supply time may be a predetermined time point at which the indoor room needs to be used, and the target oxygen volume fraction may refer to a target value of an appropriate oxygen concentration required for indoor occupants to use the indoor room.

[0091] S420: Determine a second oxygen supply flow rate based on the real-time oxygen content difference between indoors and outdoors, the target altitude data, and the dynamic ventilation data.

[0092] Among them, dynamic ventilation data is used to describe the real-time parameter change information related to gas exchange and circulation in indoor rooms. For example, dynamic ventilation data can include the number of air changes per unit time in the room, changes in gas content caused by human activities, and ventilation changes caused by the opening and closing status of doors and windows. Specifically, first, the indoor and outdoor oxygen content is continuously monitored by gas sensors installed indoors and outdoors, and the real-time oxygen content difference between indoors and outdoors is calculated. Similarly, various sensors installed indoors can also be used to monitor and record indoor dynamic ventilation data in real time, such as ventilation parameters such as indoor ventilation rate and air flow velocity. Subsequently, the actual indoor and outdoor oxygen content difference and dynamic ventilation data obtained in the plateau area are used to first determine the oxygen supply flow required at the altitude, and then multiply it by the target altitude data, and perform an equivalent correction on it, so that the actual second oxygen supply flow under standard conditions can be obtained.

[0093] In the above implementation, the second oxygen flow rate required for the second stage of oxygen supply is precisely determined by comprehensively considering the real-time indoor and outdoor oxygen content difference, target altitude data, and dynamic ventilation data. Furthermore, the target altitude data is also incorporated to fully account for the unique environmental conditions in plateau regions, thereby achieving precise control of the indoor oxygen volume fraction, effectively meeting the oxygen needs of indoor occupants and improving the comfort and health of the indoor environment.

[0094] In some embodiments, the second oxygen flow rate is determined by: after the real-time indoor oxygen content reaches a target oxygen volume fraction, establishing a second variation model describing the real-time oxygen content in the room under natural ventilation based on the real-time oxygen content difference and dynamic ventilation data, and solving the second variation model to obtain a second base oxygen flow rate. The second base oxygen flow rate is corrected using the target altitude data to obtain the second oxygen flow rate.

[0095] The second variation model can be a mathematical model that describes the dynamic change of real-time oxygen content in an indoor room over time under natural ventilation conditions. It takes into account the influence of factors such as the difference in indoor and outdoor oxygen content and dynamic ventilation data, and describes the natural diffusion, dilution, and exchange of indoor oxygen with outdoor air in plateau areas. The second basic oxygen flow rate can refer to the theoretical oxygen flow rate required to maintain the indoor oxygen volume fraction at the target value at the altitude, obtained by solving the second variation model.

[0096] Specifically, if the real-time indoor oxygen content has reached the target oxygen volume fraction, the working stage of the indoor oxygen supply will be transferred from the first stage to the second stage. In the second stage, the indoor environment in the plateau area may change from a closed and unmanned state to a state of use with personnel activities, and ventilation needs to be turned on to maintain air quality. Based on this, the real-time oxygen content difference and dynamic ventilation data under the natural ventilation environment can be determined, and a second change model describing the real-time oxygen content in the indoor room under the natural ventilation state can be established. The second change model is then solved to calculate the second basic oxygen supply flow rate required to offset the oxygen consumption of personnel and the ventilation dilution effect, that is, the oxygen flow rate that needs to be continuously supplied in the second stage to keep the indoor oxygen concentration stable at the target value.

[0097] For example, under natural ventilation conditions, the air changes per hour (ACH) and the total oxygen consumption of people in the room can be used as dynamic ventilation data. Assuming that the air changes per hour in a closed room are between 0.1 and 0.5 times per hour, after the real-time oxygen content in the room reaches the target oxygen volume fraction, if the indoor oxygen volume fraction is to be maintained at the target oxygen volume fraction of 25% over 24 hours, the equation describing the dynamic change of the indoor oxygen volume fraction can be as follows:

[0098]

[0099] V 出气 =V·ACH

[0100] Where Q p Represents the second basic oxygen flow in the second stage; V 出气 is the volume of air discharged during the ventilation process; V is the total volume of the room; ACH is the air change rate, that is, the number of air changes per unit time in the room; is the volume fraction of indoor oxygen; V 进气 is the intake volume during the ventilation process; is the outdoor oxygen volume fraction; Q c Indicates the total oxygen consumption of people in the room; ρ 60kPa,0℃ The oxygen density at 60kPa and 0℃ can be taken as 0.845kg / m3; ρ 101kPa,0℃ The oxygen density at 101kPa and 0℃ (standard conditions) can be taken as 1.429kg / m3.

[0101] Furthermore, by combining the above equations, we can obtain the following second change model:

[0102]

[0103] Where Q p represents the second basic oxygen flow rate in the second stage; V is the total volume of the room; is the indoor oxygen volume fraction; is the outdoor oxygen volume fraction; ACH is the air change rate, that is, the number of air changes per unit time in the room; Q c Indicates the total oxygen consumption of people in the room; ρ 60kPa,0℃ The oxygen density at 60kPa and 0℃ can be taken as 0.845kg / m3; ρ 101kPa,0℃ The oxygen density at 101kPa and 0℃ (standard conditions) can be taken as 1.429kg / m3.

[0104] As can be seen from the formula, after the real-time indoor oxygen content reaches the target oxygen volume fraction, the real-time oxygen content difference and dynamic ventilation data are substituted into the second change model for solution to obtain the second basic oxygen supply flow rate required to maintain the indoor oxygen volume fraction at the target value at the altitude.

[0105] Similarly, since the second basic oxygen flow rate is the theoretical oxygen flow rate required to maintain the indoor oxygen volume fraction at the target value at the altitude, it is necessary to use the target altitude data to correct the second basic oxygen flow rate, and finally obtain the second oxygen flow rate under standard conditions (plain areas) actually required in the second stage. For example, the relationship between oxygen density and air pressure can be expressed by the following formula:

[0106]

[0107] Where ρ is the oxygen density; P(h) is the atmospheric pressure; M is the molar mass of oxygen (0.032 kg / mol); R is the gas constant (8.314 J / (mol·K); and T is the room temperature.

[0108] Furthermore, the second basic oxygen flow rate is corrected using the target altitude data. That is, the formula obtained based on the second change model and the air pressure relationship can be written as:

[0109]

[0110] By further simplifying, we can get the final formula that takes into account the oxygen supply requirements at different altitudes:

[0111] Q2=[(C1-C2)·V·ACH·K h +Q c ] / 0.79

[0112] Where, Q2 represents the second oxygen supply flow rate; C1 represents the real-time indoor oxygen content; C2 represents the real-time outdoor oxygen content; ACH represents the air exchange rate, that is, the number of air changes per unit time in the room; Q c Indicates the total oxygen consumption of people in the room; K h Indicates target altitude data.

[0113] In the above embodiment, by establishing a second variation model and combining real-time oxygen content differences with dynamic ventilation data, the method accurately responds to ventilation changes and occupant activity, thereby precisely determining the second basal oxygen flow rate required to maintain the target oxygen concentration. Furthermore, an equivalent correction is made using the target altitude data, thereby improving the environmental adaptability and oxygen supply effectiveness of this method.

[0114] In some embodiments, the dynamic ventilation data includes initial total oxygen consumption and initial ventilation data. The method further includes: updating the initial total oxygen consumption and initial ventilation data based on the number of occupants in the room, the type of activity in the room, and the real-time carbon dioxide content in the room to obtain updated ventilation data and updated total oxygen consumption. The updated ventilation data and updated total oxygen consumption are used to recalculate the second oxygen flow rate to correct the second oxygen flow rate.

[0115] Among them, the initial total oxygen consumption may refer to the total amount of oxygen consumed by indoor personnel per unit time, estimated based on the number of indoor personnel, activity type, etc. before oxygen supply work is required. Specifically, the initial total oxygen consumption can be calculated based on the initial number of indoor personnel and activity type (such as sleeping, office, and exercise). The initial ventilation data may refer to parameters such as the ventilation rate and airflow velocity that reflect indoor air exchange in the second stage. Specifically, the determination of the initial total oxygen consumption and the initial ventilation data can be calculated with reference to relevant standards and specifications.

[0116] For example, taking a conference room in a highland region as an example, the initial air exchange data can be determined based on the expected meeting duration and the total number of attendees using GB50736-2012, Code for Design of Heating, Ventilation, and Air Conditioning for Civil Buildings. The initial total oxygen consumption can be determined based on the Tibet Autonomous Region Civil Oxygen Supply Engineering Design Standard DBJ540004-2018 (as shown in Table 3 below) to determine the oxygen consumption for different activities.

[0117] Table 3 Human oxygen consumption in different activities

[0118]

[0119] Then, combined with the number of people in the meeting room and the type of activities they were doing, the initial total oxygen consumption was calculated using the following total oxygen consumption calculation formula:

[0120]

[0121] Where Q c represents the total oxygen consumption of people in the room; m is the total number of activity types, n i is the number of people in each activity type, q i The oxygen consumption of the human body corresponding to each type of activity.

[0122] Furthermore, let's use the data of a conference room in Tibet as an example to illustrate. Assume that the environmental parameters of the oxygen supply in the conference room can be shown in Table 4 below:

[0123] Table 4 Environmental parameter data of conference room oxygen supply

[0124] Environmental parameters Numerical unit Altitude 4000 m Number of participants 30 people Oxygen consumption of people in the room 0.0204 <![CDATA[Nm 3 / h]]> Target oxygen volume fraction (real-time indoor oxygen content) 25 ％ Outdoor real-time oxygen content 21 ％ Initial ventilation data 2 ACH Meeting room area 50 <![CDATA[m 2 ]]> Meeting room height 3 m

[0125] The second oxygen flow rate can be calculated based on the real-time indoor and outdoor oxygen content difference, target altitude data, and dynamic ventilation data in the table. The calculation process can be shown as follows:

[0126]

[0127] As can be seen from the formula, if we want to maintain the oxygen content in the conference room at 25% of the target oxygen volume fraction and ensure the respiratory health of the personnel, the second oxygen supply flow rate calculated under the condition of ventilation is 9.986Nm 3 / h.

[0128] It is understandable that during the second stage of oxygen supply, if the real-time monitored number of indoor people, indoor activity types and indoor real-time carbon dioxide content changes, the initial total oxygen consumption and initial ventilation data need to be updated based on the number of indoor people, indoor activity types and indoor real-time carbon dioxide content.

[0129] For example, if the number of people in the conference room increases to 35, or the type of indoor activity in the conference room changes from sitting to working to frequent walking, the total oxygen consumption can be updated based on the average oxygen consumption per person. At the same time, the real-time carbon dioxide content in the room will also increase accordingly. For example, the real-time carbon dioxide content in the room may become 800ppm, and the initial ventilation data will also increase accordingly (such as from 2 times / hour to 3 times / hour). Specifically, Figure 5a The dynamic adjustment process of ventilation rate with increasing carbon dioxide concentration is shown in Figure 5a The dynamic response curve of the ventilation rate is shown.

[0130] Furthermore, after obtaining the updated ventilation data and the updated total oxygen consumption, the second oxygen flow rate can be recalculated to correct the second oxygen flow rate. For example, the updated total oxygen consumption and ventilation rate can be substituted into the second stage oxygen flow rate formula, and the calculation process is shown in the following formula:

[0131]

[0132] From the above formula, we can see that, taking the increase of personnel and the increase of carbon dioxide content as an example, the second oxygen supply flow rate will increase from 9.986Nm 3 / h adjusted to 14.721Nm3 / h to ensure that the oxygen concentration is stable at the target value (such as 25%).

[0133] Optionally, if the number of people in the room, the type of indoor activities, and the real-time carbon dioxide content in the room change multiple times during the second stage of oxygen supply, the corresponding second oxygen supply flow rate will also change accordingly. For example, the change of the second oxygen supply flow rate can be as follows: Figure 5b The dynamic response curve is shown in .

[0134] In the above embodiment, by real-time monitoring of the number of people in the room, the type of activity, and the change in carbon dioxide concentration, the total oxygen consumption and ventilation rate parameters are dynamically updated, and the second oxygen supply flow rate is recalculated accordingly, thereby achieving precise control of the indoor oxygen supply system in plateau areas. In this process, not only can the oxygen supply be automatically adjusted according to the increase or decrease in the number of people or the change in activity intensity (such as switching from office to walking), to avoid hypoxia or excessive oxygen supply. The oxygen supply can also be dynamically matched with the oxygen consumption of the personnel and the ventilation demand, ensuring that the oxygen concentration is stably maintained at the target value while reducing energy waste.

[0135] It should be understood that, although the various steps in the above flowchart are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the above flowchart may include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily to be performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0136] The present disclosure also provides a dynamic oxygen supply control system for high-altitude areas, applicable to indoor rooms in these areas. The control system includes a sensor module, a control module, and an execution module. The control module is communicatively connected to the sensor module and the execution module, respectively.

[0137] The sensor module is used to monitor indoor and outdoor environmental parameters and human activity data in real time. Indoor and outdoor environmental parameters include indoor temperature, oxygen concentration, and carbon dioxide concentration. Human activity data includes the number of people in a room and the type of activity.

[0138] The control module is used to execute the dynamic oxygen supply control method for plateau areas in any of the above embodiments.

[0139] The execution module is used to control the oxygen storage device to supply oxygen to the indoor room at a first oxygen supply flow rate, or control the flow regulating valve of the oxygen storage device to supply oxygen to the indoor room at a second oxygen supply flow rate.

[0140] For example, Figure 6 As shown, an oxygen storage device 1, a flow regulating valve 2, a human infrared sensor 3, an indoor oxygen content sensor 5, an indoor carbon dioxide content sensor 6, a thermometer 7, a user computer 8 and an outdoor oxygen content sensor 9 are arranged in an indoor room in a plateau area. Among them, the user computer 8 can be regarded as a control module, which is used to execute the dynamic regulation method of oxygen supply for plateau areas in any of the above embodiments. Specifically, the user computer 8 (control module) can calculate the first oxygen supply flow rate in the first stage working mode based on the target oxygen volume fraction and the target oxygen supply time, and calculate the second oxygen supply flow rate in the second stage working mode, and control the execution module to perform oxygen supply work. It should be noted that the first stage working mode refers to the situation where the indoor room is closed and no one is there, and the second stage working mode refers to the situation where the indoor room is naturally ventilated and there are people moving.

[0141] Oxygen storage device 1 and flow control valve 2 can be considered as an execution module, which, under the control of the control module, controls oxygen storage device 1 to supply oxygen to the indoor room at a first oxygen supply flow rate, or controls flow control valve 2 of oxygen storage device 1 to supply oxygen to the indoor room at a second oxygen supply flow rate. Human infrared sensor 3, indoor oxygen content sensor 5, indoor carbon dioxide content sensor 6, thermometer 7, and outdoor oxygen content sensor 9 can be considered as sensor modules, which are used to monitor indoor and outdoor environmental parameters and human activity data in real time.

[0142] Optionally, the execution module also includes an emergency oxygen supply device, and a safety monitoring module 4 is also arranged in the indoor room. The safety monitoring module 4 is used to trigger an audible and visual alarm when it detects that the real-time indoor oxygen content is lower than a safety threshold or the real-time indoor carbon dioxide content is higher than a safety threshold, and send an abnormal alarm information to the administrator via wireless communication. At the same time, the emergency oxygen supply device is immediately activated to provide emergency oxygen.

[0143] Optionally, the control module further includes a data storage unit, a stage determination unit, and a flow calculation module. The data storage unit is configured to store user-entered preference parameters and indoor and outdoor environmental parameters and human activity data collected by the sensor module. Specifically, the preference parameters include a target oxygen volume fraction and a target oxygen supply time. The stage determination unit is configured to determine the human activity status of the room based on the human activity data collected by the sensor module and switch the control module's operating mode. The flow calculation module is configured to calculate a first oxygen supply flow rate based on the preference parameters and indoor and outdoor environmental parameters in the first stage operating mode, and to calculate a second oxygen supply flow rate based on the indoor and outdoor environmental parameters and human activity data in the second stage operating mode. For example, using a conference room as an example, a user can set an oxygen supply plan a certain time (e.g., one day) in advance before using the conference room, including the target oxygen supply time, target oxygen volume fraction, time to maintain the target oxygen volume fraction, and start time of oxygen supply. Subsequently, the flow calculation module in the control module can retrieve the preference parameters, indoor and outdoor environmental parameters, and human activity data stored in the data storage unit to calculate the first and second oxygen supply flows.

[0144] Optionally, the control module may also include an adaptive prediction module, which is used to analyze the historical activity patterns of personnel based on the historical data stored in the data storage unit using a machine learning model, predict the number of personnel and activity types in future time periods, and adjust the second oxygen supply flow rate in advance based on the predicted data to optimize the oxygen supply response speed.

[0145] Optionally, the oxygen supply dynamic control system for plateau areas also includes an oxygen supply module. Specifically, the oxygen supply module can be understood as a dynamic control system for oxygen supply based on photovoltaic hydrogen-oxygen cogeneration, the core of which is to deeply couple new energy power generation with oxygen supply demand. The system consists of a photovoltaic power generation unit, a water electrolysis hydrogen-oxygen device, an oxygen / hydrogen storage device, a fuel cell unit, an environmental monitoring module and an intelligent control center, wherein the photovoltaic power generation unit gives priority to meeting the daily electricity / heat load of the building, and the remaining electricity drives the water electrolysis device to produce oxygen and hydrogen. The oxygen produced by electrolysis is dried and purified and stored in the oxygen storage device as the main source of oxygen supply; hydrogen is stored in a solid-state hydrogen storage alloy tank, which can be used as a fuel backup for the fuel cell and as a long-term energy storage medium.

[0146] For the specific definition of a dynamic control system for oxygen supply in plateau areas, please refer to the definition of a dynamic control method for oxygen supply in plateau areas above, which will not be repeated here. The various modules in the above-mentioned dynamic control system for oxygen supply in plateau areas can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0147] The embodiment of this specification also provides a dynamic oxygen supply control device 700 for plateau areas, such as Figure 7 As shown, it includes: a first-stage oxygen supply module 710, a second-stage oxygen supply module 720, an indoor condition determination module 730 and an indoor oxygen maintenance module 740, wherein:

[0148] The first-stage oxygen supply module 710 is configured to supply first-stage oxygen to the indoor room through a first oxygen supply operation corresponding to a first oxygen supply flow rate when the indoor room is unoccupied and in a sealed state, and determine the indoor real-time oxygen content of the indoor room.

[0149] The second-stage oxygen supply module 720 is configured to, after the real-time indoor oxygen content reaches the target oxygen volume fraction, perform a second-stage oxygen supply to the indoor room through a second oxygen supply operation corresponding to a second oxygen supply flow rate if there is activity in the indoor room and the room is in a ventilated state, so as to keep the real-time indoor oxygen content stable at the target oxygen volume fraction.

[0150] The indoor situation determination module 730 is used to determine the number of indoor people, indoor activity types and indoor real-time carbon dioxide content of the indoor room monitored in real time.

[0151] The indoor oxygen maintenance module 740 is used to correct the second oxygen supply flow rate using the real-time monitored number of indoor occupants, indoor activity types, and indoor real-time carbon dioxide content to maintain the difference between the real-time indoor oxygen content and the target oxygen volume fraction within a target threshold range.

[0152] In some embodiments, the first-stage oxygen supply module 710 is further configured to determine a target oxygen volume fraction and a target oxygen supply time; wherein the target oxygen supply time is a predetermined time point at which the indoor room needs to start being used, and the target oxygen volume fraction refers to a target value of an appropriate oxygen concentration required for indoor personnel to use the indoor room; and the first oxygen supply flow rate is determined based on the initial oxygen volume fraction of the indoor room, the target oxygen volume fraction, the target oxygen supply time, and the target altitude data.

[0153] In some embodiments, the first-stage oxygen supply module 710 is further configured to determine the first oxygen supply flow rate by: utilizing the law of conservation of mass to establish a first change model describing the real-time oxygen content in the indoor room under a closed state based on the initial oxygen volume fraction; solving the first change model using the initial oxygen volume fraction, the target oxygen volume fraction, and the target oxygen supply time to obtain a first basic oxygen supply flow rate; and correcting the first basic oxygen supply flow rate using the target altitude data to obtain the first oxygen supply flow rate.

[0154] In some embodiments, the first-stage oxygen supply module 710 is further configured to solve a first variation model based on the initial oxygen volume fraction, the target oxygen volume fraction, and the target oxygen supply time to obtain a first basic oxygen supply flow rate, including: determining the oxygen supply requirement time required from the start of oxygen supply to the time when the real-time indoor oxygen content reaches the target oxygen volume fraction based on the target oxygen supply time and the target oxygen volume fraction; and using the initial oxygen volume fraction, the target oxygen volume fraction, and the oxygen supply requirement time to reversely solve the first variation model to obtain the first basic oxygen supply flow rate.

[0155] In some embodiments, the second-stage oxygen supply module 720 is further used to determine a target oxygen volume fraction and a target oxygen supply time; wherein the target oxygen supply time is a predetermined time point at which the indoor room needs to start being used, and the target oxygen volume fraction refers to a target value of an appropriate oxygen concentration required for indoor occupants to use the indoor room; the second oxygen supply flow rate is determined based on the real-time oxygen content difference between indoor and outdoor, target altitude data, and dynamic ventilation data; wherein the dynamic ventilation data is used to describe real-time parameter change information related to gas exchange and circulation in the indoor room.

[0156] In some embodiments, the second-stage oxygen supply module 720 is further configured to determine the second oxygen supply flow rate by: after the real-time oxygen content in the room reaches the target oxygen volume fraction, based on the real-time oxygen content difference and dynamic ventilation data, establishing a second change model describing the real-time oxygen content in the indoor room under natural ventilation conditions, and solving the second change model to obtain a second basic oxygen supply flow rate; and using the target altitude data to correct the second basic oxygen supply flow rate to obtain the second oxygen supply flow rate.

[0157] In some embodiments, the dynamic ventilation data includes an initial total oxygen consumption and an initial ventilation data; the indoor oxygen maintenance module 740 is further used to update the initial total oxygen consumption and the initial ventilation data based on the number of people in the room, the type of indoor activities, and the real-time carbon dioxide content in the room to obtain updated ventilation data and updated total oxygen consumption; and use the updated ventilation data and the updated total oxygen consumption to recalculate the second oxygen supply flow rate to correct the second oxygen supply flow rate.

[0158] For the specific definition of a dynamic control device for oxygen supply in plateau areas, please refer to the definition of a dynamic control method for oxygen supply in plateau areas above, which will not be repeated here. The various modules in the above-mentioned dynamic control device for oxygen supply in plateau areas can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0159] The embodiment of the present application further provides a computer device, which may be a terminal, and its internal structure diagram may be as shown in FIG. Figure 8 As shown. The computer device includes a processor, memory, communication interface, display screen and input device connected via a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a method for dynamic oxygen supply control for plateau areas is implemented. The display screen of the computer device can be a liquid crystal display or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad provided on the computer device housing, or an external keyboard, touchpad or mouse. Those skilled in the art will understand that Figure 8 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0160] The embodiments of the present application also provide a computer-readable storage medium, and the above-mentioned method according to the embodiment of the present application can be implemented in hardware, firmware, or implemented as a computer code that can be recorded on a storage medium, or implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and downloaded via a network and will be stored in a local storage medium, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code, and when the software or computer code is accessed and executed by the computer, processor, or hardware, the method shown in the above embodiment is implemented.

[0161] The present application provides a computer program product comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the method of any embodiment of the present application. For ease of description, the above apparatus is described as being divided into various units according to their functions. Of course, when implementing the present application, the functions of each unit can be implemented in the same or multiple software and / or hardware. Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. The present application is described with reference to flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowcharts and / or block diagrams, and combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions.

[0162] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0163] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. Since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of the claims of the present application. Although the embodiments of the present application are described in conjunction with the drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A method for dynamic oxygen supply control in plateau areas, characterized in that: Applicable to indoor rooms in plateau areas; the method comprises: When the indoor room is unoccupied and in a sealed state, supplying oxygen to the indoor room in a first stage through a first oxygen supply operation corresponding to a first oxygen supply flow rate, and determining a real-time indoor oxygen content in the indoor room; After the indoor real-time oxygen content reaches the target oxygen volume fraction, if there is human activity in the indoor room and the room is in a ventilated state, a second stage of oxygen supply is performed to the indoor room through a second oxygen supply operation corresponding to a second oxygen supply flow rate, so as to keep the indoor real-time oxygen content stable at the target oxygen volume fraction; Determining the number of people in the indoor room, the type of indoor activities, and the real-time carbon dioxide content in the indoor room monitored in real time; The second oxygen supply flow rate is corrected using the real-time monitored number of indoor occupants, the indoor activity type, and the indoor real-time carbon dioxide content to maintain a difference between the indoor real-time oxygen content and the target oxygen volume fraction within a target threshold range.

2. The method according to claim 1, characterized in that The method further comprises: Determining a target oxygen volume fraction and a target oxygen supply time; wherein the target oxygen supply time is a predetermined time point at which the indoor room needs to start being used, and the target oxygen volume fraction refers to a target value of an appropriate oxygen concentration required by indoor occupants when using the indoor room; The first oxygen supply flow rate is determined based on the initial oxygen volume fraction of the indoor room, the target oxygen volume fraction, the oxygen supply target time, and target altitude data.

3. The method according to claim 2, characterized in that The first oxygen supply flow rate is determined by the following method, including: Using the law of conservation of mass, based on the initial oxygen volume fraction, a first change model describing the real-time oxygen content in the indoor room under a sealed state is established; solving the first variation model using the initial oxygen volume fraction, the target oxygen volume fraction, and the oxygen supply target time to obtain a first basic oxygen supply flow rate; The first basic oxygen supply flow rate is corrected using the target altitude data to obtain the first oxygen supply flow rate.

4. The method according to claim 3, characterized in that Solving the first change model based on the initial oxygen volume fraction, the target oxygen volume fraction, and the oxygen supply target time to obtain a first basic oxygen supply flow rate includes: Determine, based on the oxygen supply target time and the target oxygen volume fraction, the oxygen supply required time from the start of oxygen supply to the time when the real-time oxygen content in the room reaches the target oxygen volume fraction; The first change model is reversely solved using the initial oxygen volume fraction, the target oxygen volume fraction, and the oxygen supply demand duration to obtain a first basic oxygen supply flow rate.

5. The method according to claim 1, wherein The method further comprises: Determining a target oxygen volume fraction and a target oxygen supply time; wherein the target oxygen supply time is a predetermined time point at which the indoor room needs to start being used, and the target oxygen volume fraction refers to a target value of an appropriate oxygen concentration required by indoor occupants when using the indoor room; The second oxygen supply flow rate is determined based on the real-time oxygen content difference between indoor and outdoor, target altitude data, and dynamic ventilation data; wherein the dynamic ventilation data is used to describe real-time parameter change information related to gas exchange and circulation in the indoor room.

6. The method according to claim 5, characterized in that The second oxygen supply flow rate is determined by the following method, including: After the real-time oxygen content in the room reaches the target oxygen volume fraction, establishing a second change model describing the real-time oxygen content in the room under natural ventilation based on the real-time oxygen content difference and the dynamic ventilation data, and solving the second change model to obtain a second basic oxygen supply flow rate; The second basic oxygen supply flow rate is corrected using the target altitude data to obtain the second oxygen supply flow rate.

7. The method according to claim 5, characterized in that The dynamic ventilation data includes initial total oxygen consumption and initial ventilation data; the method further includes: Based on the number of people in the room, the type of indoor activities, and the real-time carbon dioxide content in the room, updating the initial total oxygen consumption and the initial ventilation data to obtain updated ventilation data and updated total oxygen consumption; The second oxygen supply flow rate is recalculated using the updated ventilation data and the updated total oxygen consumption to correct the second oxygen supply flow rate.

8. A dynamic oxygen supply control system for plateau areas, characterized in that: Applicable to indoor rooms in plateau areas; the system includes a sensor module, a control module and an execution module; the control module is communicatively connected to the sensor module and the execution module respectively; The sensor module is used to monitor indoor and outdoor environmental parameters and personnel activity data in real time; wherein the indoor and outdoor environmental parameters include indoor temperature, oxygen concentration and carbon dioxide concentration; the personnel activity data includes the number of people in the indoor room and the type of activity; The control module is configured to execute the method according to any one of claims 1 to 7; The execution module is used to control the oxygen storage device to supply oxygen to the indoor room at a first oxygen supply flow rate, or control the flow regulating valve of the oxygen storage device to supply oxygen to the indoor room at a second oxygen supply flow rate.

9. A dynamic oxygen supply control device for plateau areas, characterized in that: Applicable to indoor rooms in plateau areas; the device comprises: a first-stage oxygen supply module, configured to, when the indoor room is unoccupied and in a sealed state, supply first-stage oxygen to the indoor room through a first oxygen supply operation corresponding to a first oxygen supply flow rate, and determine a real-time indoor oxygen content in the indoor room; a second-stage oxygen supply module, configured to, after the real-time oxygen content in the room reaches the target oxygen volume fraction, supply second-stage oxygen to the room through a second oxygen supply operation corresponding to a second oxygen supply flow rate if there is human activity in the room and the room is in a ventilated state, so as to keep the real-time oxygen content in the room stable at the target oxygen volume fraction; An indoor situation determination module is used to determine the number of indoor occupants, indoor activity types, and indoor real-time carbon dioxide content in the indoor room monitored in real time; and an indoor oxygen maintenance module, configured to correct the second oxygen supply flow rate by using the real-time monitored number of indoor occupants, the indoor activity type, and the indoor real-time carbon dioxide content, so as to maintain a difference between the indoor real-time oxygen content and the target oxygen volume fraction within a target threshold range.

10. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method according to any one of claims 1 to 7 by executing the computer instructions.

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