Vehicle oxygen supply method and device, electronic equipment and storage medium

Abstract

The invention discloses a vehicle oxygen supply method and device, electronic equipment and a storage medium, and the method comprises the steps: responding to the condition that the current altitude of a vehicle meets an oxygen supply monitoring condition, obtaining the current oxygen concentration of the vehicle and the physiological parameters and facial features of a passenger, and according to a predetermined passenger resting state base line, determining the current altitude of the vehicle; respectively determining risk values of the physiological parameters and the facial features, fusing the risk values of the physiological parameters and the facial features to obtain an oxygen deficit risk value, determining a target oxygen concentration to be supplied with oxygen for the oxygen generation equipment according to the current altitude and the oxyhemoglobin saturation under the condition that the oxygen deficit risk value is greater than a preset risk threshold value, and determining the oxygen deficit of the oxygen generation equipment according to the current oxygen concentration and the target oxygen concentration. And the oxygen production flow of the oxygen production equipment is determined, and the oxygen production equipment is controlled to supply oxygen to the vehicle cabin according to the current oxygen concentration, the target oxygen concentration and the oxygen production flow. According to the embodiment of the invention, the oxygen deficit risk of the passenger is accurately evaluated on the basis of the personalized passenger resting state base line, and effective and adaptive oxygen supply for the passenger is realized.

Description

Technical Field

[0001] This application belongs to the field of vehicle control technology, specifically relating to a vehicle oxygen supply method, device, electronic equipment, and storage medium. Background Technology

[0002] With the continuous development of transportation, tourism and economy in plateau areas, vehicles have become the main means of transportation for people to enter plateau areas. When passengers enter the plateau environment, the sharp drop in atmospheric pressure and oxygen partial pressure can easily trigger altitude sickness. Therefore, providing timely and effective oxygen supply for passengers traveling in plateau areas has become a rigid requirement concerning the health of passengers and driving safety.

[0003] Currently, vehicle oxygen supply equipment can be activated manually or automatically. Manual activation can lead to delays in intervention due to passengers' inability to operate the equipment promptly in the early stages of altitude sickness. Automatic activation typically starts the equipment when the altitude reaches a pre-set threshold and then outputs oxygen at a fixed rate until manually shut off by the passenger or when the vehicle's altitude drops below the threshold. However, the altitude at which altitude sickness occurs varies from person to person. Residents at low altitudes may experience a drop in blood oxygen levels as early as 2800 meters, while long-term high-altitude residents can maintain normal levels at 3500 meters. Patients with cardiopulmonary diseases require intervention at 2500 meters, while healthy young people can tolerate altitudes above 3500 meters. This method of relying on altitude thresholds to directly determine the on / off state of the oxygen supply equipment cannot adapt to the different oxygen needs and physical conditions of users. Furthermore, outputting oxygen at a fixed rate can lead to oxygen toxicity if the oxygen concentration is too high, or insufficient oxygen concentration if altitude sickness symptoms are not relieved. This results in the inability to provide timely and effective oxygen to passengers, affecting their health and vehicle safety. Summary of the Invention

[0004] The purpose of this application is to provide a vehicle oxygen supply method, device, electronic device, and storage medium that can solve the problem that current oxygen supply methods, which rely on manual operation or altitude thresholds to trigger the oxygen generator to output oxygen at a fixed intensity, cannot provide timely and effective oxygen to occupants, thus affecting the health of occupants and the safety of vehicle operation.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows: In a first aspect, embodiments of this application provide a vehicle oxygen supply method, the method comprising: In response to the vehicle's current altitude meeting the oxygen supply monitoring conditions, the vehicle's current oxygen concentration and the occupants' physiological parameters and facial features are acquired; wherein, the physiological parameters include at least one of blood oxygen saturation, heart rate, and respiratory rate. Based on a predetermined baseline of the occupant's resting state, risk values ​​for the physiological parameters and facial features are determined separately, and the risk values ​​for the physiological parameters and facial features are fused to obtain a hypoxia risk value; If the hypoxia risk value is greater than the preset risk threshold, the target oxygen concentration to be supplied by the oxygen generating equipment is determined based on the current altitude and the blood oxygen saturation. The oxygen production flow rate of the oxygen generating equipment is determined based on the current oxygen concentration and the target oxygen concentration. The oxygen generating equipment is controlled to supply oxygen to the vehicle cabin based on the current oxygen concentration, the target oxygen concentration, and the oxygen production flow rate.

[0006] Optionally, in response to the vehicle's current altitude meeting the oxygen supply monitoring conditions, acquiring the vehicle's current oxygen concentration and the occupants' physiological parameters and facial features includes: Monitor the vehicle's current altitude; The sampling frequency is determined when the current altitude meets the altitude threshold required for oxygen supply monitoring. The current oxygen concentration of the vehicle, as well as the physiological parameters and facial features of the occupants, are obtained based on the acquisition frequency.

[0007] Optionally, the step of determining the risk values ​​of the physiological parameters and the facial features based on a predetermined baseline of the occupant's resting state, and fusing the risk values ​​of the physiological parameters and the facial features to obtain a hypoxia risk value, includes: Obtain the occupant's resting state baseline; wherein, the occupant's resting state baseline includes physiological parameter baseline values ​​and facial feature baseline values; The risk value of the physiological parameter is obtained based on the deviation ratio of the physiological parameter from the baseline value of the physiological parameter; and the risk value of the facial feature is obtained based on the deviation ratio of the facial feature from the baseline value of the facial feature. The risk values ​​of the physiological parameters and facial features are weighted and fused using preset weighting coefficients to obtain the hypoxia risk value.

[0008] Optionally, when the hypoxia risk value is greater than a preset risk threshold, determining the target oxygen concentration to be supplied by the oxygen generating equipment based on the current altitude and the blood oxygen saturation includes: If the hypoxia risk value is greater than a preset risk threshold, determine the occupant's baseline altitude, baseline blood oxygen saturation value, and baseline oxygen concentration corresponding to the baseline altitude; Determine a first difference between the current altitude and the reference altitude, and a second difference between the blood oxygen saturation and the reference blood oxygen saturation value; Based on the baseline oxygen concentration, the first difference, and the second difference, the theoretical oxygen concentration to be supplied is calculated. The minimum value between the safe oxygen concentration threshold and the theoretical oxygen concentration is determined as the target oxygen concentration to be supplied by the oxygen generating equipment.

[0009] Optionally, determining the oxygen production flow rate of the oxygen generating device based on the current oxygen concentration and the target oxygen concentration includes: Obtain the vehicle cabin volume, the number of air changes per unit of oxygen generation equipment, and the oxygen generation efficiency coefficient of molecular sieve. The oxygen production flow rate of the oxygen generating equipment is calculated based on the third difference between the target oxygen concentration and the current oxygen concentration, the vehicle cabin volume, the number of air changes per unit, and the molecular sieve oxygen production efficiency coefficient.

[0010] Optionally, controlling the oxygen generating equipment to supply oxygen to the vehicle cabin based on the current oxygen concentration, the target oxygen concentration, and the oxygen generation flow rate includes: Monitor the first difference between the current altitude and the reference altitude, the second difference between the blood oxygen saturation and the reference blood oxygen saturation value, and the third difference between the target oxygen concentration and the current oxygen concentration; If the third difference is greater than the first threshold, the oxygen generating equipment is controlled to supply oxygen to the vehicle cabin using the oxygen generation flow rate; If the third difference is less than or equal to the first threshold and the second difference is greater than or equal to the second threshold, the oxygen production flow rate is adjusted by a preset reduction ratio, and the oxygen production equipment is controlled to supply oxygen to the vehicle cabin using the adjusted oxygen production flow rate. If the first difference is less than the third threshold and the second difference is greater than or equal to the second threshold, the oxygen generating equipment is controlled to stop supplying oxygen to the vehicle cabin.

[0011] Optionally, controlling the oxygen generating equipment to supply oxygen to the vehicle cabin based on the current oxygen concentration, the target oxygen concentration, and the oxygen generation flow rate further includes: Get the current number of open air duct outlets of the vehicle; Based on the oxygen production flow rate or the adjusted oxygen production flow rate, and the number of air duct outlets opened, determine the oxygen production flow rate of each air duct outlet. The oxygen generating equipment is controlled to supply oxygen to the vehicle cabin according to the oxygen generation flow rate of each air duct outlet.

[0012] Secondly, embodiments of this application provide a vehicle oxygen supply device, the device comprising: The information acquisition module is used to acquire the vehicle's current oxygen concentration and the physiological parameters and facial features of the occupants in response to the vehicle's current altitude meeting the oxygen supply monitoring conditions; wherein, the physiological parameters include at least one of blood oxygen saturation, heart rate and respiratory rate. The risk monitoring module is used to determine the risk values ​​of the physiological parameters and the facial features based on a pre-determined baseline of the occupant's resting state, and to fuse the risk values ​​of the physiological parameters and the facial features to obtain a hypoxia risk value. The first determining module is used to determine the target oxygen concentration to be supplied by the oxygen generating equipment based on the current altitude and the blood oxygen saturation when the hypoxia risk value is greater than a preset risk threshold. The second determining module is used to determine the oxygen production flow rate of the oxygen generating device based on the current oxygen concentration and the target oxygen concentration. The control module is used to control the oxygen generating equipment to supply oxygen to the vehicle cabin based on the current oxygen concentration, the target oxygen concentration, and the oxygen generation flow rate.

[0013] Thirdly, embodiments of this application provide an electronic device including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the vehicle oxygen supply method as described in the first aspect.

[0014] Fourthly, embodiments of this application provide a readable storage medium storing a program or instructions that, when executed by a processor, implement the steps of the vehicle oxygen supply method as described in the first aspect.

[0015] The vehicle oxygen supply method provided in this application embodiment, in response to the vehicle's current altitude meeting the oxygen supply monitoring conditions, acquires the vehicle's current oxygen concentration and the physiological parameters and facial features of the occupants. The physiological parameters include at least one of blood oxygen saturation, heart rate, and respiratory rate. Based on a predetermined baseline of the occupants' resting state, risk values ​​for the physiological parameters and facial features are determined respectively. The risk values ​​of the physiological parameters and facial features are fused to obtain a hypoxia risk value. If the hypoxia risk value is greater than a preset risk threshold, the target oxygen concentration to be supplied by the oxygen generator is determined based on the current altitude and blood oxygen saturation. The oxygen production flow rate of the oxygen generator is determined based on the current oxygen concentration and the target oxygen concentration. Based on the current oxygen concentration, the target oxygen concentration, and the oxygen production flow rate, the oxygen generator is controlled to supply oxygen to the vehicle cabin. This application embodiment is based on the current altitude to trigger the collection of multiple sources of vehicle and passenger physiological and behavioral data. Using different and personalized passenger resting state baselines as a benchmark, it accurately assesses the passenger's hypoxia risk. When the passenger has an oxygen supply demand, it promptly and automatically triggers the oxygen generation equipment to supply oxygen. It also accurately calculates the target oxygen concentration required by the passenger and the oxygen generation flow rate of the oxygen generation equipment, taking into account the real-time changes in oxygen supply demand, to achieve effective and adaptive oxygen supply to the passenger, ensuring the passenger's health, comfort and vehicle driving safety.

[0016] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a flowchart illustrating the steps of a vehicle oxygen supply method provided in an embodiment of this application; Figure 2 yes Figure 1 A flowchart of step 101 in the vehicle oxygen supply method provided in the embodiments of this application; Figure 3 yes Figure 1 A flowchart of step 102 in the vehicle oxygen supply method provided in the embodiments of this application; Figure 4 yes Figure 1 A flowchart of step 103 in the vehicle oxygen supply method provided in the embodiments of this application; Figure 5 yes Figure 1 A flowchart of step 104 in the vehicle oxygen supply method provided in the embodiments of this application; Figure 6 yes Figure 1 A flowchart of step 105 in the vehicle oxygen supply method provided in the embodiments of this application. Figure 7 This is a schematic diagram of the structure of a vehicle oxygen supply device provided in an embodiment of this application; Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0020] The vehicle oxygen supply method, device, electronic equipment, and storage medium provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0021] Reference Figure 1 The diagram illustrates a flowchart of the vehicle oxygen supply method provided in an embodiment of this application. The method may include: Step 101: In response to the vehicle's current altitude meeting the oxygen supply monitoring conditions, obtain the vehicle's current oxygen concentration, as well as the occupants' physiological parameters and facial features.

[0022] The physiological parameters include at least one of blood oxygen saturation, heart rate, and respiratory rate.

[0023] In this embodiment, in order to provide or supplement oxygen to the occupants of vehicles, especially cars traveling in high-altitude areas, to combat altitude sickness caused by increased altitude, the vehicle's central control unit makes decisions and automatically triggers the oxygen generation equipment to provide precise oxygen supply by integrating multimodal information such as environmental conditions, occupant physiological parameters, and facial features.

[0024] In this embodiment, the vehicle's central control unit responds to the vehicle's current altitude meeting the oxygen supply monitoring conditions by acquiring the vehicle's current oxygen concentration, as well as the occupants' physiological parameters and facial features. Specifically, the oxygen supply monitoring conditions include an altitude threshold. If the current altitude is greater than the first altitude threshold of the oxygen supply monitoring conditions, regular oxygen supply monitoring is triggered, and information is collected at the regular oxygen supply monitoring collection frequency. If the current altitude is greater than the second altitude threshold of the oxygen supply monitoring conditions, high-risk oxygen supply monitoring is triggered, and information is collected at the high-risk oxygen supply monitoring collection frequency. The first altitude threshold is less than the second altitude threshold. By setting the altitude threshold, it is automatically determined whether oxygen supply monitoring needs to be activated, avoiding unnecessary resource consumption in low-altitude areas. The altitude threshold in the oxygen supply monitoring conditions can be adjusted according to different regions or user needs to adapt to different application scenarios.

[0025] Specifically, the vehicle's current altitude is monitored by sensors, and then compared with the altitude threshold for oxygen supply monitoring conditions to determine whether the current altitude meets the oxygen supply monitoring conditions. In response to the vehicle's current altitude meeting the oxygen supply monitoring conditions, the sensors acquire the vehicle's current oxygen concentration, as well as the physiological parameters and facial features of the occupants. The physiological parameters include at least one of blood oxygen saturation, heart rate, and respiratory rate. The facial features include the shape and movement of key facial points such as eyes and eyebrows, reflecting the occupants' facial expressions and emotions, and are used to reflect the occupants' current state.

[0026] It should be noted that, since the driver's condition directly affects vehicle driving safety, this embodiment primarily uses the passenger as the driver as an example. Information collection can be achieved through various sensors. Among them, a barometric altimeter is used to monitor the vehicle's altitude, an electrochemical oxygen concentration sensor is used to measure oxygen concentration, an infrared blood oxygen and heart rate sensor is used to measure the passenger's blood oxygen saturation and heart rate, a seat pressure sensor is used to assist in monitoring respiratory rate, and a cockpit camera is used to collect the driver's facial features. The oxygen generation equipment can be a molecular sieve oxygen generator, which is a physical adsorption air separation device that can separate nitrogen and other gases from ambient air to produce oxygen for the passenger.

[0027] Step 102: Based on the predetermined baseline of the occupant's resting state, determine the risk values ​​of physiological parameters and facial features respectively, and fuse the risk values ​​of physiological parameters and facial features to obtain the hypoxia risk value.

[0028] In this embodiment of the application, in order to accurately determine the hypoxia risk of the occupants and respond to the oxygen supply needs of different occupants in a timely manner, the risk values ​​of physiological parameters and facial features are determined according to the pre-determined baseline of the occupants' resting state. The risk values ​​of physiological parameters and facial features are fused to obtain the hypoxia risk value, which is used to determine whether to start the oxygen generating equipment to supply oxygen.

[0029] It should be noted that the occupant resting state baseline includes physiological parameter baseline values ​​and facial feature baseline values. The physiological parameter baseline values ​​include blood oxygen saturation baseline values, heart rate baseline values, respiratory rate baseline values, etc. The facial feature baseline values ​​are the quantitative values ​​of the occupant's facial features in the resting state. The occupant resting state baseline is the normal physiological parameters and facial features of the occupant in the resting state. It can be automatically updated based on long-term user data, for example, collected and updated every 30 days, to adapt to changes in the occupant's health status and ensure that the occupant resting state baseline matches the occupant's actual state. No specific limitations are made here.

[0030] In this embodiment, based on the occupant's resting state baseline, the deviation ratio of physiological parameters from the baseline values ​​of physiological parameters is calculated to obtain the risk value of physiological parameters. Also, the deviation ratio of facial features from the baseline values ​​of facial features is calculated to obtain the risk value of facial features. The risk values ​​of physiological parameters and facial features are weighted and fused to obtain the hypoxia risk value. The weights can be set and adjusted according to the importance of the parameters, and the sum of the weight coefficients of each parameter is 1.

[0031] Step 103: If the hypoxia risk value is greater than the preset risk threshold, determine the target oxygen concentration to be supplied by the oxygen generating equipment based on the current altitude and blood oxygen saturation.

[0032] In this embodiment, when the risk value of hypoxia exceeds a preset risk threshold, the oxygen generating equipment is immediately triggered to supply oxygen. The preset risk threshold can be set according to actual needs, for example, a value of 0.6. To ensure accurate control of the oxygen generating equipment to supply oxygen effectively, the target oxygen concentration to be supplied by the oxygen generating equipment is determined based on the current altitude and blood oxygen saturation. The target oxygen concentration is the oxygen concentration required to avoid altitude sickness in passengers or to meet the normal oxygen intake needs of passengers.

[0033] In practice, the theoretical oxygen concentration to be supplied can be accurately calculated based on the baseline oxygen concentration corresponding to the baseline altitude for passenger safety, combined with the current altitude and blood oxygen saturation. To ensure that the target oxygen concentration does not exceed the safe range and to avoid oxygen poisoning caused by excessive oxygen supply, a set oxygen concentration safety threshold is used as a limit value, and the minimum value between the theoretical oxygen concentration and the safety threshold is selected as the target oxygen concentration.

[0034] Step 104: Determine the oxygen production flow rate of the oxygen generating equipment based on the current oxygen concentration and the target oxygen concentration.

[0035] In this embodiment, to accurately control the oxygen supply of the oxygen generator and avoid insufficient or excessive oxygen supply in a short period of time, it is necessary to calculate the oxygen production flow rate of the oxygen generator based on the target oxygen concentration, combined with vehicle parameters and the working parameters of the oxygen generator. The oxygen production flow rate refers to the volume of oxygen that the oxygen generator can produce and output per unit time, meeting the concentration requirements. Specifically, the oxygen production flow rate of the oxygen generator is determined based on the current oxygen concentration and the target oxygen concentration. The vehicle cabin volume, the unit air exchange rate of the oxygen generator, and the molecular sieve oxygen production efficiency coefficient can be obtained. The oxygen production flow rate of the oxygen generator is calculated based on the difference between the target oxygen concentration and the current oxygen concentration, the vehicle cabin volume, the unit air exchange rate, and the molecular sieve oxygen production efficiency coefficient. These details will not be elaborated here.

[0036] Step 105: Based on the current oxygen concentration, target oxygen concentration, and oxygen production flow rate, control the oxygen production equipment to supply oxygen to the vehicle cabin.

[0037] In this embodiment, the oxygen generating equipment is controlled to supply oxygen to the vehicle cabin based on the current oxygen concentration, target oxygen concentration, and oxygen production flow rate. This allows for dynamic adjustment of the oxygen supply strategy to adapt to actual changes in vehicle altitude, occupant status, and cabin concentration, thus providing effective oxygen supply in accordance with the actual situation.

[0038] In practice, if the difference between the target oxygen concentration and the current oxygen concentration is greater than the first threshold, it indicates a large difference between the two. The oxygen generator is then controlled to supply oxygen to the vehicle cabin using the appropriate oxygen flow rate, ensuring that the cabin oxygen concentration quickly reaches the target value when demand is high. During continuous oxygen supply, if the difference between the target oxygen concentration and the current oxygen concentration is less than or equal to the first threshold, it indicates that the current cabin oxygen concentration is close to meeting user needs. At this point, the difference between the occupant's blood oxygen saturation and the baseline blood oxygen saturation value is greater than or equal to the second threshold, meaning the occupant's blood oxygen saturation gradually recovers to the baseline value at rest. Since more oxygen is not required, a preset reduction ratio is used to adjust the oxygen flow rate, controlling the oxygen generator to supply oxygen to the vehicle cabin using the adjusted flow rate, thus reducing unnecessary oxygen supply. If the difference between the current altitude and the reference altitude is less than the third threshold, and the difference between the occupant's blood oxygen saturation and the reference blood oxygen saturation value is greater than or equal to the second threshold, that is, when the vehicle approaches the reference altitude from a high altitude and the occupant's blood oxygen saturation gradually rises back to the reference blood oxygen saturation value at rest, it indicates that there is no need to continue supplying oxygen. The oxygen generating equipment is then controlled to stop supplying oxygen to the vehicle cabin to avoid excessive oxygen supply causing discomfort to the occupants.

[0039] The vehicle oxygen supply method provided in this application embodiment, in response to the vehicle's current altitude meeting the oxygen supply monitoring conditions, acquires the vehicle's current oxygen concentration and the physiological parameters and facial features of the occupants. The physiological parameters include at least one of blood oxygen saturation, heart rate, and respiratory rate. Based on a predetermined baseline of the occupants' resting state, risk values ​​for the physiological parameters and facial features are determined respectively. The risk values ​​of the physiological parameters and facial features are fused to obtain a hypoxia risk value. If the hypoxia risk value is greater than a preset risk threshold, the target oxygen concentration to be supplied by the oxygen generator is determined based on the current altitude and blood oxygen saturation. The oxygen production flow rate of the oxygen generator is determined based on the current oxygen concentration and the target oxygen concentration. Based on the current oxygen concentration, the target oxygen concentration, and the oxygen production flow rate, the oxygen generator is controlled to supply oxygen to the vehicle cabin. This application embodiment is based on the current altitude to trigger the collection of multiple sources of vehicle and passenger physiological and behavioral data. Using different and personalized passenger resting state baselines as a benchmark, it accurately assesses the passenger's hypoxia risk. When the passenger has an oxygen supply demand, it promptly and automatically triggers the oxygen generation equipment to supply oxygen. It also accurately calculates the target oxygen concentration required by the passenger and the oxygen generation flow rate of the oxygen generation equipment, taking into account the real-time changes in oxygen supply demand, to achieve effective and adaptive oxygen supply to the passenger, ensuring the passenger's health, comfort and vehicle driving safety.

[0040] Reference Figure 2 , showed Figure 1 A flowchart of step 101 in a vehicle oxygen supply method is provided. In some embodiments of this application, step 101, in response to the vehicle's current altitude meeting the oxygen supply monitoring conditions, acquires the vehicle's current oxygen concentration, as well as the physiological parameters and facial features of the occupants. Specifically, it may include the following steps: Sub-step 1011: Monitor the vehicle's current altitude; Sub-step 1012: Determine the sampling frequency if the current altitude meets the altitude threshold for oxygen supply monitoring. Sub-step 1013: Based on the acquisition frequency, obtain the current oxygen concentration of the vehicle and the physiological parameters and facial features of the occupants.

[0041] In this embodiment, the vehicle's current altitude is monitored by sensors, and then compared with an altitude threshold for oxygen supply monitoring to determine whether the current altitude meets the oxygen supply monitoring conditions. These conditions include a first altitude threshold and a second altitude threshold. Specifically, if the current altitude is greater than the first altitude threshold, conventional oxygen supply monitoring is triggered, activating the oxygen generator and monitoring the vehicle and occupant status using a first sampling frequency. If the current altitude is greater than the second altitude threshold, high-risk oxygen supply monitoring is triggered, and monitoring the vehicle and occupant status using a second sampling frequency. The first altitude threshold is less than the second altitude threshold, and the first sampling frequency is less than the second sampling frequency. It should be noted that the vehicle is equipped with a barometric altimeter with an accuracy of ±0.5 meters. This barometric altimeter monitors the vehicle's current altitude in real time by collecting changes in atmospheric pressure and transmits the monitored altitude to the central control unit.

[0042] In this embodiment, by setting an altitude threshold, it automatically determines whether oxygen supply monitoring needs to be activated, avoiding unnecessary resource consumption in low-altitude areas. The altitude threshold in the oxygen supply monitoring conditions can be adjusted according to different regions or user needs to adapt to different application scenarios, and is not limited here. Specifically, when the current altitude meets the altitude threshold of the oxygen supply monitoring conditions, the sampling frequency is determined. During vehicle operation, if the current altitude is greater than the first altitude threshold of the oxygen supply monitoring conditions, regular oxygen supply monitoring is triggered, and the sampling frequency of oxygen supply monitoring is determined to be the first sampling frequency of regular oxygen supply monitoring. If the current altitude is greater than the second altitude threshold of the oxygen supply monitoring conditions, high-risk oxygen supply monitoring is triggered, and the sampling frequency of oxygen supply monitoring is determined to be the second sampling frequency of high-risk oxygen supply monitoring. For example, the first sampling frequency is once every 5 seconds, and the second sampling frequency is once every 1 second or 2 seconds. The sampling frequency is dynamically adjusted according to the altitude to ensure frequent monitoring of environmental parameters and occupant status in high-altitude areas, improving response speed, and reducing the sampling frequency in low-altitude areas, reducing unnecessary resource waste.

[0043] In the specific implementation, the current oxygen concentration of the vehicle, as well as the physiological parameters and facial features of the occupants, are obtained based on the acquisition frequency. Among them, the electrochemical oxygen concentration sensor is used to collect the current oxygen concentration in the vehicle cabin, the infrared blood oxygen and heart rate sensor is used to collect the blood oxygen saturation, heart rate and respiratory rate of the occupants. The respiratory rate can also be collected in conjunction with the seat pressure sensor. The cabin camera collects the facial features of the occupants to identify their facial features. Facial features include features that reflect the occupants' facial expressions, facial emotions, etc., which are used to reflect the current state of the occupants. These will not be elaborated on here.

[0044] The embodiments of this application dynamically adjust the acquisition frequency based on altitude, and use multiple source sensors to jointly collect environmental parameters of the vehicle as well as physiological parameters and facial features of the user, in order to comprehensively assess the hypoxia risk of the occupants and provide reliable data support for subsequent oxygen supply decisions.

[0045] Reference Figure 3 , showed Figure 1 A flowchart of step 102 in a vehicle oxygen supply method is provided. In some embodiments of this application, step 102 determines the risk values ​​of physiological parameters and facial features based on a predetermined baseline of the occupant's resting state, and fuses the risk values ​​of physiological parameters and facial features to obtain a hypoxia risk value. Specifically, it may include the following steps: Sub-step 1021: Obtain the occupant resting state baseline; wherein, the occupant resting state baseline includes physiological parameter baseline values ​​and facial feature baseline values; Sub-step 1022: Based on the deviation ratio of the physiological parameter from the baseline value of the physiological parameter, obtain the risk value of the physiological parameter; and based on the deviation ratio of the facial feature from the baseline value of the facial feature, obtain the risk value of the facial feature. Sub-step 1023: The risk values ​​of the physiological parameters and facial features are weighted and fused using a preset weighting coefficient to obtain the hypoxia risk value.

[0046] In this embodiment of the application, in order to accurately determine the hypoxia risk of the occupants and respond to the oxygen supply needs of different occupants in a timely manner, the physiological parameter baseline and facial feature baseline of the occupants in the resting state are preset as the occupant resting state baseline. The vehicle's central control unit obtains the occupant resting state baseline that is updated regularly, and then determines the risk values ​​of the physiological parameters and facial features according to the preset occupant resting state baseline. The risk values ​​of the physiological parameters and facial features are then fused to obtain the hypoxia risk value.

[0047] Specifically, the occupant resting state baseline includes physiological parameter baseline values ​​and facial feature baseline values. The risk value of the physiological parameter is obtained based on the deviation ratio of the physiological parameter from the physiological parameter baseline value, and the risk value of the facial feature is obtained based on the deviation ratio of the facial feature from the facial feature baseline value. Finally, the risk values ​​of the physiological parameter and the facial feature are weighted and fused using a preset weighting coefficient to obtain the hypoxia risk value.

[0048] It should be noted that the occupant resting state baseline can be automatically updated based on long-term user data, for example, calibrated every 30 days, to adapt to changes in the occupant's health condition and ensure that the occupant resting state baseline matches the occupant's actual condition. Physiological parameter baselines include SpO2_base (blood oxygen saturation), HR_base (heart rate), RR_base (respiratory rate), and behavior_base (facial feature baseline, which is the quantified value of facial features at rest indicating no significant change in expression).

[0049] In specific implementation, the normal range of the baseline value of blood oxygen saturation SpO2_base is 95% to 100%, the normal range of the baseline value of heart rate HR_base is 60 to 100 beats / min, and the normal range of the baseline value of respiratory rate RR_base is 12 to 20 beats / min. In order to calculate the deviation ratio between the actual state and the baseline of the occupant's resting state, thereby obtaining the risk values ​​of physiological parameters and facial features, as well as the final hypoxia risk value, in this embodiment, deviation thresholds for blood oxygen saturation, heart rate, and respiratory rate are preset respectively. For example, the deviation threshold ΔSpO2 for blood oxygen saturation is 5%, the deviation threshold ΔHR for heart rate is 20 beats / min, and the deviation threshold ΔRR for respiratory rate is 5 beats / min. The above are specific examples. This embodiment does not specifically limit the deviation thresholds for blood oxygen saturation, heart rate, and respiratory rate.

[0050] In this embodiment, the blood oxygen saturation risk value R_SpO2, heart rate risk value R_HR, respiratory rate risk value R_RR, and facial feature risk value R_behavior are calculated through the following formulas: R_SpO2 = max(1, (SpO2_base - SpO2) / ΔSpO2) Where SpO2 is the current blood oxygen saturation, SpO2_base is the blood oxygen saturation reference value, and ΔSpO2 is the deviation threshold of blood oxygen saturation. When SpO2 ≥ SpO2_base - ΔSpO2, R_SpO2 is 0. When SpO2 < SpO2_base - ΔSpO2, it is calculated according to the deviation ratio, and the maximum value of R_SpO2 is 1.0.

[0051] R_HR = max(1, (HR - HR_base) / ΔHR) Where HR is the current heart rate, HR_base is the heart rate reference value, and ΔHR is the deviation threshold of heart rate. When HR ≤ HRbase + ΔHR, R_HR is 0. When HR > HR_base + ΔHR, it is calculated according to the deviation ratio, and the maximum value of R_HR is 1.0.

[0052] R_RR = max(1, (RR - RR_base) / ΔRR) Where RR is the current respiratory rate, RR_base is the respiratory rate reference value, and ΔRR is the deviation threshold of respiratory rate. When RR ≤ RRbase + ΔRR, R_RR is 0. When RR > RR_base + ΔRR, it is calculated according to the deviation ratio, and the maximum value of R_RR is 1.0.

[0053] It should be noted that the facial feature risk value R_behavior is the normalized value of the facial feature F_norm, that is, it is obtained by normalizing based on the facial feature reference value and the facial feature F_norm. The risk values of physiological parameters and facial features are obtained respectively, that is, the blood oxygen saturation risk value R_SpO2, heart rate risk value R_HR, respiratory rate risk value R_RR, and facial feature risk value R_behavior. The risk values of physiological parameters and facial features are weighted and fused using a preset weight coefficient to obtain the hypoxia risk value. The weight coefficient can be set and adjusted according to the importance of the parameters, and the sum of the weight coefficients of each parameter is 1. Among them, the hypoxia risk value Risk is calculated through the following formula: Risk = w1×R_SpO2 + w2×R_HR + w3×R_RR + w4×R_behavior For example, if the occupant's resting baseline SpO2_base=98%, HR_base=70 bpm, RR_base=16 bpm, and the current monitored values ​​are SpO2=92%, HR=95 bpm, RR=22 bpm, F_norm=0.7, deviation threshold ΔSpO2=5%, ΔHR=20 bpm, ΔRR=5 bpm, and weighting coefficients w1=0.4, w2=0.3, w3=0.2, w4=0.1, then using the above formula, R_SpO2=1.0, R_HR=1.0, R_RR=1.0, R_behavior=0.7, and the calculated Risk is 0.97.

[0054] This application embodiment uses the baseline of the occupant's resting state, which is dynamically adjusted according to the occupant's actual state, as a benchmark. It calculates the risk values ​​of physiological parameters and facial features respectively, and by weighted fusion of the risk values ​​of physiological parameters and facial features, it comprehensively considers information from multiple dimensions to accurately assess the occupant's hypoxia risk, thereby improving the comprehensiveness and accuracy of risk assessment so as to trigger oxygen supply in a timely and accurate manner.

[0055] Reference Figure 4 , showed Figure 1 A flowchart of step 103 in a vehicle oxygen supply method is provided. In some embodiments of this application, step 103, when the hypoxia risk value is greater than a preset risk threshold, determines the target oxygen concentration to be supplied by the oxygen generating equipment based on the current altitude and blood oxygen saturation. Specifically, it may include the following steps: Sub-step 1031: If the hypoxia risk value is greater than the preset risk threshold, determine the occupant's baseline altitude, blood oxygen saturation baseline value, and the baseline oxygen concentration corresponding to the baseline altitude. Sub-step 1032: Determine the first difference between the current altitude and the reference altitude, and the second difference between the blood oxygen saturation and the reference blood oxygen saturation value; Sub-step 1033: Based on the reference oxygen concentration, the first difference, and the second difference, calculate the theoretical oxygen concentration to be supplied. Sub-step 1034: The minimum value between the oxygen concentration safety threshold and the theoretical oxygen concentration is determined as the target oxygen concentration to be supplied by the oxygen generating equipment.

[0056] In this embodiment, the preset risk threshold can be set to 0.6. That is, if the risk value of hypoxia is greater than the preset risk threshold of 0.6, the oxygen generator will be triggered to supply oxygen immediately. In order to automatically and accurately control the oxygen generator to supply oxygen effectively, it is necessary to calculate the target oxygen concentration to be supplied by the oxygen generator. In specific implementation, the occupant's baseline altitude, baseline blood oxygen saturation value, and baseline oxygen concentration corresponding to the baseline altitude are determined. The first difference between the current altitude and the baseline altitude, and the second difference between the blood oxygen saturation and the baseline blood oxygen saturation value are determined. Based on the baseline oxygen concentration, the first difference, and the second difference, the theoretical oxygen concentration to be supplied is calculated. The theoretical oxygen concentration is the oxygen concentration that the oxygen generator needs to provide. However, considering the risk of oxygen toxicity, the minimum value between the preset oxygen concentration safety threshold and the theoretical oxygen concentration is determined as the target oxygen concentration to be supplied by the oxygen generator.

[0057] It should be noted that by setting a risk threshold, the system automatically determines whether to trigger the oxygen generator to supply oxygen, avoiding unnecessary oxygen supply in low-risk situations. Combining the baseline oxygen concentration, altitude difference, and blood oxygen saturation difference, it accurately calculates the theoretical oxygen concentration to be supplied. This theoretical oxygen concentration calculation dynamically adjusts based on changes in current altitude and blood oxygen saturation to ensure the occupants' oxygen needs are met. By setting a safe oxygen concentration threshold (e.g., 23%), the system selects the minimum of the theoretical oxygen concentration and the safe threshold to precisely control the target oxygen concentration, ensuring it does not exceed the safe range and preventing oxygen toxicity from excessive oxygen supply. Specifically, the formula for calculating the target oxygen concentration to be supplied by the oxygen generator is as follows: C_target = min(C_s, C0 + k1×(H - H0) + k2×(SpO2_base-SpO2)) Where C_target is the target oxygen concentration, C_s is the safe threshold for oxygen concentration (which can be 23%), C0 is the baseline oxygen concentration (C0 is 19.5% at a baseline altitude of 3000 meters), k1 is the altitude correction factor (0.001% / meter), k2 is the blood oxygen compensation factor (0.5% / meter), H is the current altitude, H0 is the baseline altitude (which can be 3000 meters), SpO2_base is the baseline value for blood oxygen saturation, and SpO2 is the blood oxygen saturation.

[0058] This application embodiment automatically determines whether to activate oxygen supply based on the hypoxia risk value, avoiding unnecessary oxygen supply in low-risk situations. Based on the baseline oxygen concentration, altitude difference, and blood oxygen saturation difference, as well as the set oxygen concentration safety threshold, it accurately calculates the optimal target oxygen concentration to ensure that the target oxygen concentration does not exceed the safe range, avoids excessive oxygen supply, and ensures the comfort and safety of passengers.

[0059] Reference Figure 5 , showed Figure 1 A flowchart of step 104 in a vehicle oxygen supply method is provided. In some embodiments of this application, step 104 determines the oxygen production flow rate of the oxygen generating device based on the current oxygen concentration and the target oxygen concentration, and may specifically include the following steps: Sub-step 1041: Obtain the vehicle cabin volume, the number of air changes per unit of the oxygen generator, and the molecular sieve oxygen generation efficiency coefficient. Sub-step 1042: Calculate the oxygen production flow rate of the oxygen generating equipment based on the third difference between the target oxygen concentration and the current oxygen concentration, the vehicle cabin volume, the number of air changes per unit, and the molecular sieve oxygen production efficiency coefficient.

[0060] In this embodiment, to accurately control the oxygen supply of the oxygen generator and avoid insufficient or excessive oxygen supply in a short period of time, it is necessary to calculate the oxygen production flow rate of the oxygen generator based on the target oxygen concentration, combined with vehicle parameters and the operating parameters of the oxygen generator. The oxygen production flow rate refers to the volume of oxygen that the oxygen generator can produce and output per unit time, meeting the concentration requirements, expressed in m³ / min. For example, a molecular sieve oxygen generator may have an adjustable oxygen production flow rate of 0-5 L / min. Specifically, the vehicle cabin volume, the unit air exchange rate of the oxygen generator, and the molecular sieve oxygen production efficiency coefficient are obtained. Based on the third difference between the target oxygen concentration and the current oxygen concentration, the vehicle cabin volume, the unit air exchange rate, and the molecular sieve oxygen production efficiency coefficient, the oxygen production flow rate of the oxygen generator is calculated.

[0061] It should be noted that the total amount of oxygen required is determined based on the third difference between the target oxygen concentration and the current oxygen concentration. This, combined with the vehicle cabin volume, the unit air exchange rate of the oxygen generator, and the molecular sieve oxygen production efficiency coefficient, is used to calculate the oxygen production flow rate of the oxygen generator. The vehicle cabin volume is measured in cubic meters (m³). 3 Molecular sieve oxygen generation efficiency is a parameter used to measure the effectiveness of oxygen generation equipment in converting incoming ambient air into oxygen. Air exchange rate refers to the number of times the entire vehicle's air is exchanged per minute when the external air circulation is on, measured in minutes. -1 Specifically, the formula for calculating the oxygen production flow rate of oxygen generators is as follows: Q = (C_target - C_in)×V×ρ×N Where Q is the oxygen production flow rate of the oxygen generator, C_target is the target oxygen concentration, C_in is the current oxygen concentration, V is the vehicle cabin volume, ρ is the molecular sieve oxygen production efficiency coefficient, and N is the number of air changes per unit.

[0062] This application embodiment accurately calculates the oxygen production flow rate of the oxygen generator to avoid insufficient oxygen supply or excessive oxygen supply in a short period of time, so as to ensure that the oxygen concentration in the cabin reaches the target concentration value reasonably and safely, thus ensuring the comfort and safety of the occupants.

[0063] Reference Figure 6, showed Figure 1 A flowchart of step 105 in a vehicle oxygen supply method is provided. In some embodiments of this application, step 105 controls the oxygen generating equipment to supply oxygen to the vehicle cabin based on the current oxygen concentration, the target oxygen concentration, and the oxygen generation flow rate. Specifically, it may include the following steps: Sub-step 1051: Monitor the first difference between the current altitude and the reference altitude, the second difference between the blood oxygen saturation and the reference blood oxygen saturation value, and the third difference between the target oxygen concentration and the current oxygen concentration; Sub-step 1052: If the third difference is greater than the first threshold, control the oxygen generating equipment to supply oxygen to the vehicle cabin using the oxygen generating flow rate. Sub-step 1053: If the third difference is less than or equal to the first threshold and the second difference is greater than or equal to the second threshold, the oxygen production flow rate is adjusted by a preset reduction ratio, and the oxygen production equipment is controlled to supply oxygen to the vehicle cabin using the adjusted oxygen production flow rate. Sub-step 1054: If the first difference is less than the third threshold and the second difference is greater than or equal to the second threshold, control the oxygen generating equipment to stop supplying oxygen to the vehicle cabin.

[0064] In this embodiment, the difference between the current altitude and the reference altitude, the difference between blood oxygen saturation and the reference value, and the difference between the target oxygen concentration and the current oxygen concentration are monitored to comprehensively assess the hypoxia risk and oxygen supply needs of the occupants. In order to dynamically adjust the oxygen supply strategy according to the actual changes in vehicle altitude, occupant status and cabin concentration, and to provide effective oxygen supply in accordance with the actual situation.

[0065] In specific implementation, the first threshold, second threshold, and third threshold are set and adjusted according to the actual situation, and are not specifically limited here. If the third difference between the target oxygen concentration and the current oxygen concentration is greater than the first threshold, it indicates that the difference between the current oxygen concentration and the target oxygen concentration is large. The oxygen generating equipment is controlled to supply oxygen to the vehicle cabin using the oxygen generating flow rate. When the oxygen supply is continuous, if the third difference between the target oxygen concentration and the current oxygen concentration is less than or equal to the first threshold, it indicates that the current oxygen concentration in the cabin is close to meeting the user's needs. At this time, the second difference between the occupant's blood oxygen saturation and the blood oxygen saturation benchmark value is greater than or equal to the second threshold, that is, the occupant's blood oxygen saturation gradually rises to the blood oxygen saturation benchmark value in the resting state, and it is not necessary to provide more oxygen. Therefore, the oxygen generating flow rate is adjusted by a preset reduction ratio, and the oxygen generating equipment is controlled to supply oxygen to the vehicle cabin using the adjusted oxygen generating flow rate. The preset reduction ratio can be set according to actual needs and is used to control the adjustment amount of the oxygen generating flow rate. In this embodiment, the reduction ratio can be 0.3, that is, the oxygen generating flow rate is reduced to 0.3 of the original oxygen generating flow rate. If the first difference between the current altitude and the reference altitude is less than the third threshold, and the second difference between the occupant's blood oxygen saturation and the reference blood oxygen saturation value is greater than or equal to the second threshold, that is, when the vehicle approaches the reference altitude from a high altitude and the occupant's blood oxygen saturation gradually rises to the reference blood oxygen saturation value at rest, and this continues for a preset time, such as 5 minutes, it indicates that there is no need to continue supplying oxygen, and the oxygen generating equipment is controlled to stop supplying oxygen to the vehicle cabin.

[0066] This application embodiment comprehensively monitors and evaluates the oxygen supply needs of occupants, dynamically adjusts the oxygen supply flow rate, ensures that the oxygen concentration in the cabin can quickly reach the target value when the oxygen supply demand is high, reduces the oxygen supply flow rate when the oxygen supply demand is close to the target, reduces unnecessary oxygen supply, and stops oxygen supply in a timely manner when the vehicle and occupants return to a safe state, so as to avoid excessive oxygen supply causing discomfort to occupants. It intelligently judges whether it is necessary to adjust or stop the oxygen supply, ensuring the comfort and safety of occupants.

[0067] In some embodiments of this application, step 105 controls the oxygen generating equipment to supply oxygen to the vehicle cabin based on the current oxygen concentration, the target oxygen concentration, and the oxygen generation flow rate. Specifically, it may also include the following steps: Sub-step 1055: Obtain the current number of air duct outlets open for the vehicle; Sub-step 1056: Determine the oxygen production flow rate of each air duct outlet based on the oxygen production flow rate or the adjusted oxygen production flow rate and the number of air duct outlets opened. Sub-step 1057: Control the oxygen generating equipment to supply oxygen to the vehicle cabin according to the oxygen generation flow rate of each air duct outlet.

[0068] In this embodiment, to avoid uneven oxygen supply in the cabin and affect the passenger experience, the oxygen generator is linked to the vehicle's air conditioning system. By acquiring the current number of open air duct outlets in real time, the oxygen supply is dynamically adjusted according to the actual cabin layout and passenger needs. Specifically, the current number of open air duct outlets is acquired, and based on the oxygen production flow rate or the adjusted oxygen production flow rate, as well as the number of open air duct outlets, the oxygen production flow rate for each air duct outlet is determined. The oxygen generator is then controlled to supply oxygen to the vehicle cabin according to the oxygen production flow rate of each air duct outlet.

[0069] It should be noted that the air duct outlet is the channel for outputting oxygen, which can be an oxygen generating device or an air conditioning system. According to the aforementioned oxygen supply strategy, if the oxygen generation flow rate is the oxygen generation flow rate determined by the preliminary calculation, then the flow rate is balanced by combining the number of air duct outlets opened to obtain the average oxygen generation flow rate of each air duct outlet. If the oxygen generation flow rate is adjusted by a reduction ratio, then the flow rate is balanced by combining the adjusted oxygen generation flow rate with the number of air duct outlets opened to obtain the average oxygen generation flow rate of each air duct outlet.

[0070] This application ensures a balanced oxygen supply flow at each air duct outlet by distributing the total oxygen production flow evenly according to the number of open air duct outlets, thus avoiding insufficient or excessive oxygen supply in some areas and ensuring the comfort and safety of passengers.

[0071] Reference Figure 7 The diagram shows a structural schematic of a vehicle oxygen supply device according to an embodiment of this application. The device includes: The information acquisition module 201 is used to acquire the current oxygen concentration of the vehicle and the physiological parameters and facial features of the occupants in response to the vehicle's current altitude meeting the oxygen supply monitoring conditions; wherein the physiological parameters include at least one of blood oxygen saturation, heart rate and respiratory rate. Risk monitoring module 202 is used to determine the risk values ​​of the physiological parameters and the facial features based on a predetermined baseline of the occupant's resting state, and to fuse the risk values ​​of the physiological parameters and the facial features to obtain a hypoxia risk value; The first determining module 203 is used to determine the target oxygen concentration to be supplied by the oxygen generating equipment based on the current altitude and the blood oxygen saturation when the hypoxia risk value is greater than a preset risk threshold. The second determining module 204 is used to determine the oxygen production flow rate of the oxygen generating device based on the current oxygen concentration and the target oxygen concentration. The control module 205 is used to control the oxygen generating equipment to supply oxygen to the vehicle cabin according to the current oxygen concentration, the target oxygen concentration and the oxygen generation flow rate.

[0072] Optionally, the information acquisition module 201 includes: The first monitoring submodule is used to monitor the vehicle's current altitude; The judgment submodule is used to determine the sampling frequency when the current altitude meets the altitude threshold of the oxygen supply monitoring conditions; The first acquisition submodule is used to acquire the current oxygen concentration of the vehicle, as well as the physiological parameters and facial features of the occupants, based on the acquisition frequency.

[0073] Optionally, the risk monitoring module 202 includes: The second acquisition submodule is used to acquire the occupant resting state baseline; wherein, the occupant resting state baseline includes physiological parameter baseline values ​​and facial feature baseline values; The first risk calculation submodule is used to obtain the risk value of the physiological parameter based on the deviation ratio of the physiological parameter from the physiological parameter benchmark value, and to obtain the risk value of the facial feature based on the deviation ratio of the facial feature from the facial feature benchmark value. The second risk calculation submodule is used to weight and fuse the risk values ​​of the physiological parameters and the facial features using preset weighting coefficients to obtain the hypoxia risk value.

[0074] Optionally, the first determining module 203 includes: The first determining submodule is used to determine the occupant's baseline altitude, baseline blood oxygen saturation value, and baseline oxygen concentration corresponding to the baseline altitude when the hypoxia risk value is greater than a preset risk threshold. The second determining submodule is used to determine the first difference between the current altitude and the reference altitude, and the second difference between the blood oxygen saturation and the reference blood oxygen saturation value; The first calculation submodule is used to calculate the theoretical oxygen concentration to be supplied based on the reference oxygen concentration, the first difference, and the second difference. The third determining submodule is used to determine the minimum value between the oxygen concentration safety threshold and the theoretical oxygen concentration as the target oxygen concentration to be supplied by the oxygen generating equipment.

[0075] Optionally, the second determining module 204 includes: The third acquisition submodule is used to acquire the vehicle cabin volume, the number of air changes per unit of oxygen generation equipment, and the oxygen generation efficiency coefficient of molecular sieve. The second calculation submodule is used to calculate the oxygen production flow rate of the oxygen generating equipment based on the third difference between the target oxygen concentration and the current oxygen concentration, the vehicle cabin volume, the number of air changes per unit, and the molecular sieve oxygen production efficiency coefficient.

[0076] Optionally, the control module 205 includes: The second monitoring submodule is used to monitor the first difference between the current altitude and the reference altitude, the second difference between the blood oxygen saturation and the reference blood oxygen saturation value, and the third difference between the target oxygen concentration and the current oxygen concentration. The first control submodule is used to control the oxygen generating equipment to supply oxygen to the vehicle cabin using the oxygen generating flow rate if the third difference is greater than the first threshold. The second control submodule is used to adjust the oxygen production flow rate by a preset reduction ratio if the third difference is less than or equal to the first threshold and the second difference is greater than or equal to the second threshold, and control the oxygen production equipment to supply oxygen to the vehicle cabin with the adjusted oxygen production flow rate. The third control submodule is used to control the oxygen generating equipment to stop supplying oxygen to the vehicle cabin if the first difference is less than the third threshold and the second difference is greater than or equal to the second threshold.

[0077] Optionally, the control module 205 further includes: The fourth acquisition submodule is used to obtain the current number of air duct outlets open on the vehicle; The fourth determining submodule is used to determine the oxygen production flow rate of each air duct outlet based on the oxygen production flow rate or the adjusted oxygen production flow rate and the number of air duct outlets opened. The fourth control submodule is used to control the oxygen generating equipment to supply oxygen to the vehicle cabin according to the oxygen generation flow rate of each air duct outlet.

[0078] The vehicle oxygen supply device provided in this application embodiment can realize all the processes implemented by the vehicle oxygen supply method in the above embodiments of this application. To avoid repetition, it will not be described again here.

[0079] The vehicle oxygen supply device provided in this application embodiment, in response to the vehicle's current altitude meeting the oxygen supply monitoring conditions, acquires the vehicle's current oxygen concentration and the occupants' physiological parameters and facial features. The physiological parameters include at least one of blood oxygen saturation, heart rate, and respiratory rate. Based on a predetermined baseline of the occupants' resting state, risk values ​​for the physiological parameters and facial features are determined respectively. The risk values ​​of the physiological parameters and facial features are fused to obtain a hypoxia risk value. If the hypoxia risk value is greater than a preset risk threshold, the target oxygen concentration to be supplied by the oxygen generator is determined based on the current altitude and blood oxygen saturation. The oxygen production flow rate of the oxygen generator is determined based on the current oxygen concentration and the target oxygen concentration. Based on the current oxygen concentration, the target oxygen concentration, and the oxygen production flow rate, the oxygen generator is controlled to supply oxygen to the vehicle cabin. This application embodiment is based on the current altitude to trigger the collection of multiple sources of vehicle and passenger physiological and behavioral data. Using different and personalized passenger resting state baselines as a benchmark, it accurately assesses the passenger's hypoxia risk. When the passenger has an oxygen supply demand, it promptly and automatically triggers the oxygen generation equipment to supply oxygen. It also accurately calculates the target oxygen concentration required by the passenger and the oxygen generation flow rate of the oxygen generation equipment, taking into account the real-time changes in oxygen supply demand, to achieve effective and adaptive oxygen supply to the passenger, ensuring the passenger's health, comfort and vehicle driving safety.

[0080] Reference Figure 8 This application also provides an electronic device, such as... Figure 8 As shown, it includes a processor 301, a communication interface 302, a memory 303, and a communication bus 304, wherein the processor 301, the communication interface 302, and the memory 303 communicate with each other through the communication bus 304. Processor 301, memory 303 for storing processor-executable instructions; The processor 301 is configured to execute the instructions to implement the vehicle oxygen supply method as described below: In response to the vehicle's current altitude meeting the oxygen supply monitoring conditions, the vehicle's current oxygen concentration and the occupants' physiological parameters and facial features are acquired; wherein, the physiological parameters include at least one of blood oxygen saturation, heart rate, and respiratory rate. Based on a predetermined baseline of the occupant's resting state, risk values ​​for the physiological parameters and facial features are determined separately, and the risk values ​​for the physiological parameters and facial features are fused to obtain a hypoxia risk value; If the hypoxia risk value is greater than the preset risk threshold, the target oxygen concentration to be supplied by the oxygen generating equipment is determined based on the current altitude and the blood oxygen saturation. The oxygen production flow rate of the oxygen generating equipment is determined based on the current oxygen concentration and the target oxygen concentration. The oxygen generating equipment is controlled to supply oxygen to the vehicle cabin based on the current oxygen concentration, the target oxygen concentration, and the oxygen production flow rate.

[0081] The communication bus mentioned above can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. This communication bus can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used to represent it in the diagram, but this does not mean that there is only one bus or one type of bus.

[0082] The communication interface is used for communication between the aforementioned terminal and other devices.

[0083] The memory may include random access memory (RAM) or non-volatile memory, such as at least one disk storage device. Optionally, the memory may also be at least one storage device located remotely from the aforementioned processor.

[0084] The processors mentioned above can be general-purpose processors, including central processing units (CPUs), network processors (NPs), etc.; they can also be digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0085] In another embodiment provided in this application, a computer-readable storage medium is also provided, on which a computer program is stored, which, when executed by a processor, implements any of the vehicle oxygen supply methods described in the above embodiments.

[0086] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital occupancy line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk (SSD)).

[0087] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0088] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0089] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A method for supplying oxygen to a vehicle, characterized in that, The method includes: In response to the vehicle's current altitude meeting the oxygen supply monitoring conditions, the vehicle's current oxygen concentration and the occupants' physiological parameters and facial features are acquired; wherein, the physiological parameters include at least one of blood oxygen saturation, heart rate, and respiratory rate. Based on a predetermined baseline of the occupant's resting state, risk values ​​for the physiological parameters and facial features are determined separately, and the risk values ​​for the physiological parameters and facial features are fused to obtain a hypoxia risk value; If the hypoxia risk value is greater than the preset risk threshold, the target oxygen concentration to be supplied by the oxygen generating equipment is determined based on the current altitude and the blood oxygen saturation. The oxygen production flow rate of the oxygen generating equipment is determined based on the current oxygen concentration and the target oxygen concentration. The oxygen generating equipment is controlled to supply oxygen to the vehicle cabin based on the current oxygen concentration, the target oxygen concentration, and the oxygen production flow rate.

2. The method according to claim 1, characterized in that, The method, in response to the vehicle's current altitude meeting oxygen supply monitoring conditions, acquires the vehicle's current oxygen concentration, as well as the occupants' physiological parameters and facial features, including: Monitor the vehicle's current altitude; The sampling frequency is determined when the current altitude meets the altitude threshold required for oxygen supply monitoring. The current oxygen concentration of the vehicle, as well as the physiological parameters and facial features of the occupants, are obtained based on the acquisition frequency.

3. The method according to claim 1, characterized in that, The process of determining risk values ​​for the physiological parameters and facial features based on the occupant's resting state baseline, and fusing the risk values ​​of the physiological parameters and facial features to obtain a hypoxia risk value, includes: Obtain the occupant's resting state baseline; wherein, the occupant's resting state baseline includes physiological parameter baseline values ​​and facial feature baseline values; The risk value of the physiological parameter is obtained based on the deviation ratio of the physiological parameter from the baseline value of the physiological parameter; and the risk value of the facial feature is obtained based on the deviation ratio of the facial feature from the baseline value of the facial feature. The risk values ​​of the physiological parameters and facial features are weighted and fused using weighting coefficients to obtain the hypoxia risk value.

4. The method according to claim 1, characterized in that, When the hypoxia risk value is greater than a preset risk threshold, determining the target oxygen concentration to be supplied by the oxygen generating equipment based on the current altitude and the blood oxygen saturation includes: If the hypoxia risk value is greater than a preset risk threshold, determine the occupant's baseline altitude, baseline blood oxygen saturation value, and baseline oxygen concentration corresponding to the baseline altitude; Determine a first difference between the current altitude and the reference altitude, and a second difference between the blood oxygen saturation and the reference blood oxygen saturation value; Based on the baseline oxygen concentration, the first difference, and the second difference, the theoretical oxygen concentration to be supplied is calculated. The minimum value between the safe oxygen concentration threshold and the theoretical oxygen concentration is determined as the target oxygen concentration to be supplied by the oxygen generating equipment.

5. The method according to claim 1, characterized in that, Determining the oxygen production flow rate of the oxygen generating device based on the current oxygen concentration and the target oxygen concentration includes: Obtain the vehicle cabin volume, the number of air changes per unit of oxygen generation equipment, and the oxygen generation efficiency coefficient of molecular sieve. The oxygen production flow rate of the oxygen generating equipment is calculated based on the third difference between the target oxygen concentration and the current oxygen concentration, the vehicle cabin volume, the number of air changes per unit, and the molecular sieve oxygen production efficiency coefficient.

6. The method according to claim 4, characterized in that, The step of controlling the oxygen generating equipment to supply oxygen to the vehicle cabin based on the current oxygen concentration, the target oxygen concentration, and the oxygen generation flow rate includes: Monitor the first difference between the current altitude and the reference altitude, the second difference between the blood oxygen saturation and the reference blood oxygen saturation value, and the third difference between the target oxygen concentration and the current oxygen concentration; If the third difference is greater than the first threshold, the oxygen generating equipment is controlled to supply oxygen to the vehicle cabin using the oxygen generation flow rate; If the third difference is less than or equal to the first threshold and the second difference is greater than or equal to the second threshold, the oxygen production flow rate is adjusted by a preset reduction ratio, and the oxygen production equipment is controlled to supply oxygen to the vehicle cabin using the adjusted oxygen production flow rate. If the first difference is less than the third threshold and the second difference is greater than or equal to the second threshold, the oxygen generating equipment is controlled to stop supplying oxygen to the vehicle cabin.

7. The method according to claim 6, characterized in that, The method of controlling the oxygen generating equipment to supply oxygen to the vehicle cabin based on the current oxygen concentration, the target oxygen concentration, and the oxygen generation flow rate further includes: Get the current number of open air duct outlets of the vehicle; Based on the oxygen production flow rate or the adjusted oxygen production flow rate, and the number of air duct outlets opened, determine the oxygen production flow rate of each air duct outlet. The oxygen generating equipment is controlled to supply oxygen to the vehicle cabin according to the oxygen generation flow rate of each air duct outlet.

8. A vehicle oxygen supply device, characterized in that, The device includes: The information acquisition module is used to acquire the vehicle's current oxygen concentration and the physiological parameters and facial features of the occupants in response to the vehicle's current altitude meeting the oxygen supply monitoring conditions; wherein, the physiological parameters include at least one of blood oxygen saturation, heart rate and respiratory rate. The risk monitoring module is used to determine the risk values ​​of the physiological parameters and the facial features based on a pre-determined baseline of the occupant's resting state, and to fuse the risk values ​​of the physiological parameters and the facial features to obtain a hypoxia risk value. The first determining module is used to determine the target oxygen concentration to be supplied by the oxygen generating equipment based on the current altitude and the blood oxygen saturation when the hypoxia risk value is greater than a preset risk threshold. The second determining module is used to determine the oxygen production flow rate of the oxygen generating device based on the current oxygen concentration and the target oxygen concentration. The control module is used to control the oxygen generating equipment to supply oxygen to the vehicle cabin based on the current oxygen concentration, the target oxygen concentration, and the oxygen generation flow rate.

9. An electronic device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to execute the instructions to implement the vehicle oxygen supply method as described in any one of claims 1 to 7.

10. A readable storage medium, characterized in that, A computer program is stored on the readable storage medium, which, when executed by a processor, implements the vehicle oxygen supply method as described in any one of claims 1 to 7.

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