Oxygen supply method and system for increasing local environmental oxygen partial pressure in plateau border defense posts

Abstract

The present invention discloses a method and system for supplying oxygen to increase the partial environmental oxygen pressure in plateau border defense posts, that is, a relatively enclosed transparent sleeping tent is built using airtight transparent materials, and an oxygen concentration sensor, a blood oxygen sensor and a piezoelectric sensor are arranged in the transparent sleeping tent; nitrogen-oxygen mixed gas with an oxygen concentration of 40% to 60% is diffusely supplied into the transparent sleeping tent to increase the oxygen concentration in the transparent sleeping tent; the piezoelectric sensor and the blood oxygen sensor are used to monitor the heart rate, respiration, blood oxygen saturation, body position, etc. of officers and soldiers in real time, and according to their sleep breathing conditions and degree of hypoxia, the oxygen concentration in the transparent sleeping tent is automatically controlled to keep the oxygen concentration between 24% and 30%, providing a comfortable oxygen-rich environment for officers and soldiers to improve sleep quality and promote the recovery of the physical functions of officers and soldiers.

Description

Technical Field

[0001] The invention relates to an oxygen supply method and system for improving the oxygen partial pressure in the local environment of a plateau frontier defense post, and belongs to the technical field of biomedical engineering. Background Art

[0002] There are many border guard posts stationed in high altitude areas with large temperature changes. The main problems that plague the plateau border guard posts are: 1. How to improve the quality of sleep in the hypoxic environment of the plateau? 2. How to restore body functions as quickly as possible in the hypoxic environment of the plateau?

[0003] As we all know, hypoxia in the plateau seriously affects sleep at night. Long-term poor sleep quality will greatly affect the recovery of body functions and make it impossible to adapt to high-intensity training.

[0004] When people are in a state of hypoxia for a long time, the body will have compensatory reactions and inhibition of the respiratory center, which will cause the respiratory rate to slow down, the breathing to become shallower, and the rhythm to become abnormal, and respiratory arrest will occur. Sleep apnea is the main manifestation of poor sleep in the plateau. Sleep respiratory events (such as apnea events) affect the functions of multiple organs and systems throughout the body, and are an important independent risk factor for hypertension, myocardial infarction, sudden cardiac death and stroke. Frequent sleep respiratory events during sleep fragment sleep, leading to reduced cognitive function, decreased work ability, and more accidents during work. If they are not monitored, evaluated and treated in a timely manner, they will seriously damage physical health and affect combat effectiveness.

[0005] At present, the main solution to the problem of hypoxia in the plateau is oxygen inhalation, such as nasal oxygen supply and diffuse oxygen supply. The disadvantage of nasal oxygen supply is that long-term oxygen inhalation through the nasal cavity will cause discomfort to the nasal mucosa and affect sleep. For diffuse oxygen supply, since the plateau border outposts are located in remote areas with harsh environments, underdeveloped transportation, and a shortage of daily necessities, when the area of ​​the oxygen supply room is large, the oxygen supply capacity cannot be guaranteed. Summary of the invention

[0006] In view of the above reasons, the main purpose of the present invention is to provide an oxygen supply method for increasing the oxygen partial pressure in the local environment of a plateau border post. The method can effectively improve the oxygen partial pressure in the local environment, improve the sleep quality of officers and soldiers, accelerate the recovery of officers and soldiers' physical functions, and enhance combat effectiveness.

[0007] Another object of the present invention is to provide an oxygen supply system for increasing the oxygen partial pressure in the local environment of a plateau border post. The system can improve the oxygen content in the local environment of a plateau border post, quickly increase the blood oxygen saturation of officers and soldiers, improve the sleep quality of officers and soldiers, and improve their physical condition.

[0008] To achieve the above object, the present invention adopts the following technical solution: an oxygen supply method for increasing the oxygen partial pressure in the local environment of a plateau frontier post, which comprises the following steps:

[0009] S1. Use an airtight transparent material to build a transparent sleeping tent, and install an oxygen concentration sensor, a blood oxygen sensor and a piezoelectric sensor inside the transparent sleeping tent.

[0010] S2. Start the oxygen generator to diffusely supply a nitrogen-oxygen mixed gas with an oxygen concentration of 40% - 60% into the transparent sleeping tent. When the altitude is 3000m - 4000m, set the initial oxygen concentration in the transparent sleeping tent to 24%. When the altitude is above 4000m, set the initial oxygen concentration in the transparent sleeping tent to 25%.

[0011] S3. Real-time monitor the heart rate, respiration, blood oxygen saturation and body position physiological parameters of officers and soldiers through the piezoelectric sensor and the blood oxygen sensor, and control the oxygen concentration in the transparent sleeping tent according to the sleep breathing condition and hypoxia degree of officers and soldiers, so that the oxygen concentration in the transparent sleeping tent is 24% - 30%.

[0012] S3.1. Monitor the sleep breathing condition of officers and soldiers.

[0013] If it is monitored that there is a sleep hypoventilation event or a sleep apnea event exceeding 60 seconds within 10 minutes for officers and soldiers, the controller automatically adjusts the opening degree of the proportional valve to increase the intake air flow, so that the oxygen concentration in the transparent sleeping tent increases by 1% within 1 minute. Otherwise, keep the oxygen concentration unchanged. After an interval of 10 minutes, continue the monitoring for the next 10 minutes. If there is still a sleep hypoventilation event or a sleep apnea event exceeding 60 seconds, continue to increase the intake air flow to make the oxygen concentration increase by 1% within 1 minute. Otherwise, keep the oxygen concentration unchanged. Continuously monitor the sleep breathing until there is no sleep apnea or the oxygen concentration in the transparent sleeping tent increases to 30%.

[0014] While monitoring the sleep breathing condition of officers and soldiers, monitor the blood oxygen saturation of officers and soldiers and execute step S3.2.

[0015] S3.2. Monitor the blood oxygen saturation of officers and soldiers.

[0016] If it is monitored that the blood oxygen saturation of officers and soldiers drops by 4% within 5 minutes or is lower than 90%, the controller automatically adjusts the opening degree of the proportional valve to increase the intake air flow, so that the oxygen concentration in the transparent sleeping tent increases by 1% within 1 minute. Otherwise, keep the oxygen concentration unchanged. Conduct the monitoring for the next 5 minutes. If there is still a situation where the blood oxygen saturation drops by 4% within 5 minutes or is lower than 90%, continue to increase the intake air flow to make the oxygen concentration in the transparent sleeping tent increase by 1% within 1 minute. Otherwise, keep the oxygen concentration unchanged. Continuously monitor the blood oxygen saturation until the blood oxygen saturation reaches 90% or the oxygen concentration in the transparent sleeping tent increases to 30%.

[0017] Further, the transparent sleeping tent is a relatively enclosed independent space. An air inlet is opened at the foot position of the transparent sleeping tent, and this air inlet is connected to the air outlet of the oxygen generator through a pipeline. A proportional valve is connected in series on the connecting pipeline; a safety ventilation window is opened at the head position of the transparent sleeping tent;

[0018] The piezoelectric sensor is a strip-shaped or belt-shaped piezoelectric sensor, which is horizontally placed at one-third of the distance from the head of the transparent sleeping tent. No matter what sleeping position the officers and soldiers are in, this piezoelectric sensor can monitor the heart rate, breathing, and body position information of the human body;

[0019] The signal output ends of the oxygen concentration sensor, blood oxygen sensor, and piezoelectric sensor are connected to the control signal input end of the controller through wires; the signal output end of the controller is connected to the control end of the proportional valve connected in series on the oxygen delivery pipeline through a wire. The controller adjusts the opening degree of the proportional valve according to the information monitored by the oxygen concentration sensor, blood oxygen sensor, and piezoelectric sensor to control the oxygen concentration in the transparent sleeping tent.

[0020] The present invention also provides an oxygen supply system for increasing the partial pressure of oxygen in the local environment of a high-altitude border post, which includes a transparent sleeping tent, an oxygen generator, and a control unit;

[0021] The transparent sleeping tent forms a relatively airtight space, which is made of an airtight transparent material; an openable entrance is provided on the front of the transparent sleeping tent, a ventilation window is opened at the head position of the transparent sleeping tent, and an air inlet is opened at the foot position of the transparent sleeping tent. This air inlet is connected to the air outlet of the oxygen generator through a pipeline;

[0022] The control unit includes a controller, a handheld remote control, a blood oxygen sensor, an oxygen concentration sensor, a piezoelectric sensor, and a proportional valve;

[0023] The oxygen concentration sensor is arranged inside the transparent sleeping tent to monitor the oxygen content inside the transparent sleeping tent in real time; the piezoelectric sensor is placed at the bottom of the transparent sleeping tent and is horizontally placed at one-third of the distance from the head of the transparent sleeping tent to monitor the changes in the heart rate, breathing, and body position of the human body;

[0024] The blood oxygen sensor is placed inside the transparent sleeping tent and can be sleeved on the finger of the officer or soldier to monitor the change in the blood oxygen saturation of the human body; the proportional valve is connected in series in the oxygen supply output pipeline of the oxygen generator;

[0025] The signal output ends of the blood oxygen sensor, oxygen concentration sensor, and piezoelectric sensor are connected to the signal input end of the controller through wires, and the signal output end of the controller is connected to the control end of the proportional valve through a wire.

[0026] Further, the oxygen generator outputs a nitrogen-oxygen mixed gas with an oxygen concentration of 40% - 60%.

[0027] Furthermore, the transparent sleeping tent is made of non-toxic, odorless, and pollution-free materials; the length of the transparent sleeping tent is 1.9 m to 2.1 m, the width is 0.8 m to 1.2 m, and the height is 1.4 m to 1.6 m.

[0028] Furthermore, the transparent sleeping tent further includes a sleeping pad made of high-compression sponge, and the sleeping pad is laid at the bottom of the transparent sleeping tent; the piezoelectric sensor is a strip-shaped or belt-shaped piezoelectric sensor and is buried in the sleeping pad.

[0029] Furthermore, the transparent sleeping tent is composed of a transparent tent and a keel bracket; the keel bracket is formed by overlapping N retractable metal rods and is used to support the tent; the bottom of the tent is connected to the sleeping pad through a zipper to form a relatively airtight space.

[0030] Furthermore, the controller includes an Internet of Things data transmission interface; the signal output ends of the blood oxygen sensor, the oxygen concentration sensor, and the piezoelectric sensor are connected to the controller through wires and perform data transmission with other devices through Bluetooth, TCP, or serial port.

[0031] The present invention has the following advantages compared with the prior art:

[0032] 1. The present invention creates a relatively closed oxygen-rich environment through a diffusive oxygen supply method, improving the oxygen concentration / oxygen partial pressure of the surrounding environment when officers and soldiers are resting, especially when sleeping, enabling the majority of officers and soldiers to rest in a relaxed and comfortable environment, ensuring sleep quality, promoting the recovery of physical functions, and overcoming the sense of oppression of the traditional mask oxygen supply method and the foreign body sensation of the nasal catheter oxygen supply method; moreover, the oxygen-rich environment is small in volume, has low oxygen consumption, and has remarkable energy-saving effects, and is particularly suitable for use in harsh plateau border defense posts.

[0033] 2. The present invention analyzes the sleep status of officers and soldiers based on the monitored physiological parameters such as heart rate, respiration, body position, and blood oxygen saturation, and scientifically and effectively automatically adjusts the oxygen content in the transparent sleeping tent to ensure the all-night sleep quality of officers and soldiers, with remarkable effects.

[0034] 3. The oxygen supply system provided by the present invention has a simple structure, is scientifically and reasonably designed, has a low cost, and is particularly suitable for large-scale use in harsh plateau border defense posts. Description of the Drawings

[0035] Figure 1 is a flowchart of the method for improving the local environmental oxygen partial pressure in the plateau border defense post of the present invention;

[0036] Figure 2 is a schematic structural diagram of the transparent sleeping tent of the present invention;

[0037] Figure 3It is a schematic diagram of the principle of the system for increasing the partial environmental oxygen pressure in plateau border defense posts in the present invention. Specific implementation mode

[0038] The structure and characteristics of the present invention will be described in detail below in conjunction with the drawings and embodiments. It should be noted that various modifications can be made to the embodiments disclosed herein. Therefore, the embodiments disclosed in the specification should not be regarded as limitations on the present invention, but only as examples of the embodiments, the purpose of which is to make the characteristics of the present invention obvious.

[0039] The fundamental way to improve the problem of hypoxia is to inhale oxygen. However, due to limited conditions and scarce resources in plateau border defense posts, it is impossible to build hyperbaric oxygen chambers and provide sufficient oxygen supply. Moreover, high-pressure oxygen supply has problems such as great difficulty in engineering implementation, high requirements for the strength and airtightness of building structures, poor service adaptability, inconvenience for personnel to enter and exit, and easy discomfort reactions of the human body caused by pressure changes, etc., and it is difficult to apply. Therefore, in the present invention, a relatively independent and airtight transparent sleeping tent with a comfortable environment is set up, and oxygen is diffused into the sleeping tent to increase the oxygen partial pressure in the sleeping tent for officers and soldiers to use when resting. In particular, it can be used by officers and soldiers when sleeping at night to ensure the sleep quality and restore the physical functions of officers and soldiers, so as to ensure the patrol and training the next day.

[0040] As Figure 1 shown, the oxygen supply method for increasing the partial environmental oxygen pressure in plateau border defense posts in the present invention is as follows:

[0041] S1. Use an airtight transparent material to build a transparent sleeping tent, and an oxygen concentration sensor, a blood oxygen sensor and a piezoelectric sensor are arranged in the transparent sleeping tent.

[0042] It is not realistic to solve the problem of hypoxia during the sleep of the majority of officers and soldiers by wearing an oxygen mask or nasal catheter. The reason is that it is uncomfortable. Especially when wearing an oxygen mask at night, it gives a sense of oppression. When inhaling oxygen through a nasal catheter, it has a strong irritation to the nasal mucosa, poor comfort, and there is also noise interference, which is more unfavorable for rest and sleep. Therefore, as Figure 2 shown, in the present invention, by building a relatively enclosed transparent space and diffusing oxygen into this relatively enclosed space to increase the oxygen content in this space, the problem of hypoxia of officers and soldiers is solved, so that officers and soldiers can rest and sleep in an environment with a relatively high oxygen content to ensure a better sleep quality.

[0043] The present invention uses an airtight, non-toxic, odorless and pollution-free transparent material, such as food-grade TPU, to build a relatively enclosed space with a length of 1.9 m to 2.1 m, a width of 0.8 m to 1.2 m and a height of 1.4 m to 1.6 m, that is, the transparent sleeping tent 1. As Figure 2 shown, its space size is convenient for officers and soldiers to stretch and move freely inside without a sense of depression.

[0044] An air inlet 12 is provided at one end of the transparent sleeping tent. The air inlet is connected to the air outlet of the oxygen generator 2 through a pipeline, and a proportional valve 36 is connected in series on the connecting pipeline to supply oxygen into the transparent sleeping tent. A safety ventilation window 11 is provided at the other end of the transparent sleeping tent, which remains closed under normal circumstances and can be opened for gas exchange when needed. Since the oxygen generator produces slight noise when outputting the mixed gas, in order not to affect the sleep of officers and soldiers, usually the air inlet 12 is located at the foot position of the officers and soldiers when lying on their backs, that is, the foot position of the transparent sleeping tent, which can reduce the influence of the noise generated by the airflow during air intake on the sleep of officers and soldiers. The safety ventilation window 11 is located at the head position of the officers and soldiers when lying on their backs, that is, the head position of the transparent sleeping tent.

[0045] See Figure 3 , in the present invention, an oxygen concentration sensor 35 for real-time monitoring of the oxygen content in the transparent sleeping tent and a blood oxygen sensor 33 for monitoring the blood oxygen saturation of officers and soldiers are provided in the transparent sleeping tent, such as a finger sleeve for measuring blood oxygen saturation. At the bottom of the transparent sleeping tent, a strip-shaped or belt-shaped piezoelectric sensor 34 is provided at one-third of the distance from the head of the transparent sleeping tent. The piezoelectric sensor is horizontally placed at the chest position of the human body in the supine position. That is, no matter what posture the officers and soldiers sleep in, the body can press on the strip-shaped or belt-shaped piezoelectric sensor 34, so that the piezoelectric sensor can monitor information such as the heart rate, respiration, and body position change of the officers and soldiers in real time. The signal output ends of the oxygen concentration sensor, the blood oxygen sensor, and the piezoelectric sensor are connected to the control signal input end of the controller 31 through wires; the signal output end of the controller 31 is connected to the control end of the proportional valve 36 connected in series on the oxygen delivery pipeline through a wire. The controller adjusts the opening degree of the proportional valve according to the four physiological parameter values of heart rate, respiration, blood oxygen saturation, and body position monitored by the oxygen concentration sensor, the blood oxygen sensor, and the piezoelectric sensor, and supplies oxygen into the transparent sleeping tent.

[0046] S2. Start the oxygen generator to diffusely supply a nitrogen-oxygen mixed gas with an oxygen concentration of 40% - 60% into the transparent sleeping tent. Set the initial value of the oxygen concentration in the transparent sleeping tent to 24% when the altitude is 3000m - 4000m, and set the initial value of the oxygen concentration in the transparent sleeping tent to 25% when the altitude is above 4000m.

[0047] Since the surrounding environment of the high-altitude border outposts is an oxygen-deficient environment, therefore, the present invention creates a relatively enclosed space, that is, a transparent sleeping tent, and supplies a nitrogen-oxygen mixed gas with an oxygen concentration of 40% - 60% into the transparent sleeping tent through a diffuse oxygen supply method to increase the oxygen partial pressure in the transparent sleeping tent for officers and soldiers to rest at night, so as to improve the sleep quality of the majority of officers and soldiers and restore the physical functions of the officers and soldiers.

[0048] Experiments have proved that delivering a nitrogen-oxygen mixed gas with an oxygen concentration of 40% - 60% into the transparent sleeping tent can significantly increase the oxygen content in the transparent sleeping tent and create an oxygen-rich environment. Through experiments on 30 person-times, it is found that when the oxygen content in the mixed gas exceeds 60% and the fresh air ratio is too low, the concentration of waste gases such as carbon dioxide in the transparent sleeping tent will be too high, and staying for a long time will cause physical discomfort instead. When the oxygen content in the mixed gas is lower than 40%, the rising speed of the oxygen concentration in the transparent sleeping tent is slow, and the continuous increase in air flow rate will cause relatively high noise in the tent, making people feel uncomfortable. Therefore, when delivering a nitrogen-oxygen mixed gas with an oxygen concentration of 40% - 60% into the transparent sleeping tent, it can not only quickly increase the oxygen concentration in the transparent sleeping tent, efficiently and accurately improve the sleep structure, sleep time, and proportion of deep sleep time of officers and soldiers, but also ensure the freshness of the microenvironment in the transparent sleeping tent and guarantee the comfort of officers and soldiers during sleep.

[0049] For example, when the oxygen content in the mixed gas is 30% and the intake air flow rate is 10 L / min, it takes 15 minutes for the oxygen concentration in the transparent sleeping tent to reach 24%. When the oxygen content in the mixed gas is 35% and the intake air flow rate is 10 L / min, it takes 10 minutes for the oxygen concentration in the transparent sleeping tent to reach 24%. When the oxygen content in the mixed gas is 70%, after 1 hour, the carbon dioxide concentration in the transparent sleeping tent increases by 400 ppm. When the oxygen content in the mixed gas is 80%, after 1 hour, the carbon dioxide concentration increases by 800 ppm. When the carbon dioxide concentration in the transparent sleeping tent exceeds 1000 ppm, people will obviously feel uncomfortable. When the carbon dioxide concentration exceeds 2500 ppm, there will be symptoms such as dizziness and nausea.

[0050] Since the transparent sleeping tent of the present invention is used in high-altitude areas, and the degree of hypoxia of the human body is different at different altitudes. When the altitude is 3000 m - 4000 m, when the initial value of the oxygen concentration in the transparent sleeping tent is set to 24%, the human body is equivalent to being below an altitude of 2000 m, which has no impact on the human body, and the blood oxygen saturation can be maintained above 90%. When the altitude is above 4000 m, when the initial value of the oxygen concentration in the transparent sleeping tent is set to 25%, the human body is equivalent to being below an altitude of 2200 m, which has no impact on the human body, and the blood oxygen saturation can be maintained above 90%. Therefore, according to the difference in the degree of hypoxia of the human body at different altitudes, setting different initial values of oxygen concentration can ensure the oxygen demand of most officers and soldiers during sleep. For officers and soldiers at risk of apnea, the oxygen concentration can be quickly and dynamically adjusted according to the monitored physiological parameters.

[0051] S3. Real-time monitor the heart rate, respiration, blood oxygen saturation, and body position of officers and soldiers through piezoelectric sensors and blood oxygen sensors, and control the oxygen concentration in the transparent sleeping tent according to the sleep breathing condition and hypoxia degree of officers and soldiers, so that the oxygen concentration in the transparent sleeping tent is 24% - 30%.

[0052] Through a large number of scientific experiments, it is found that heart rate, respiration, blood oxygen, and body position can most directly, accurately, and quickly reflect the sleep situation and degree of hypoxia of the human body. By adjusting the oxygen concentration in the transparent sleep tent in combination with the above physiological parameters, the sleep quality of officers and soldiers can be improved efficiently, and the physical functions of officers and soldiers can be restored quickly. Moreover, compared with traditional monitoring methods, when using piezoelectric sensors and blood oxygen sensors for monitoring, the person being detected does not need to deal with electrodes and wires, and only needs to lie on the sleep pad to sleep, which greatly improves the experience for officers and soldiers. Using the sleep pad for sleep monitoring can meet the long-term monitoring needs of officers and soldiers, provide objective sleep data, and reflect rhythm changes.

[0053] Heart rate: Using heart rate and heart rate variability to evaluate sleep stages can reflect a person's different sleep stages, and report indicators such as the total sleep time, sleep efficiency, awakening times, deep sleep, light sleep, and REM of officers and soldiers.

[0054] Respiration: It can directly reflect whether officers and soldiers have sleep apnea events and sleep hypoventilation events. Measuring the respiratory signal through piezoelectric sensors has high sensitivity and will not have the situation of electrode detachment in traditional monitoring methods. Since there is a corresponding relationship between respiration and heart pulsation and each sleep stage, especially the characteristic manifestation of increased variability during rapid eye movement sleep (REM stage), it helps to distinguish the four periods of wakefulness, REM stage, light sleep stage, and deep sleep stage.

[0055] Blood oxygen saturation: It directly reflects the hypoxia condition of the human body. The change of blood oxygen saturation during sleep is an important basis for judging respiratory events (especially hypoventilation events). Moreover, blood oxygen saturation can be monitored quickly and non-invasively, and the activities of officers and soldiers are not restricted during monitoring, which increases the convenience of sleep monitoring.

[0056] Body position: It reflects the different body positions of officers and soldiers during sleep. By changing the body position, the risk of apnea can be reduced. Experimental data show that apnea is more likely to occur when lying on the back, and the frequency of apnea can be reduced when lying on the side. Therefore, according to the body position monitoring situation, it can be recommended that officers and soldiers take the side-lying position when resting, further improving the sleep quality of officers and soldiers and improving the sleep structure.

[0057] Oxygen inhalation can quickly improve the blood oxygen saturation of officers and soldiers. However, the oxygen concentration inhaled is not the higher the better. Especially, it cannot inhale oxygen with too high a concentration for a long time. If the oxygen supply concentration is too high for a long time and the concentration difference from the external environment is too large, it may damage the human body functions and is more unfavorable to the health of officers and soldiers.

[0058] In view of the special geographical conditions of plateau border defense posts and the long-term training requirements of officers and soldiers, the applicant of the present invention has found through a large number of scientific experiments that when the oxygen concentration is between 24% and 30% and there is no sleep apnea or no hypoxia (blood oxygen saturation above 90%), the sleep efficiency is the highest (the proportion of deep sleep increases and the total sleep time increases). Therefore, the present invention dynamically adjusts the oxygen supply concentration personalized during the sleep of officers and soldiers.

[0059] Experimental data also show that when the oxygen concentration in the transparent sleeping tent is fixed at 24% at an equivalent altitude of 3800 meters, the sleep quality of 60.3% of people is significantly improved; when the oxygen concentration in the transparent sleeping tent is fixed at 25%, the sleep quality of 65.8% of people is significantly improved; when the oxygen concentration in the transparent sleeping tent is fixed at 26%, the sleep quality of 71.1% of people is significantly improved. By dynamically adjusting the oxygen concentration, the sleep of 85.2% of people is significantly improved.

[0060] S3.1. Monitor the sleep breathing status of officers and soldiers.

[0061] The present invention monitors the physiological parameters of officers and soldiers in real time through piezoelectric sensors, such as changes in heart rate, respiration, and body position, to determine whether there are sleep apnea events or sleep hypopnea events.

[0062] If it is monitored that an officer or soldier has a sleep hypopnea event or a sleep apnea event exceeding 60 seconds within 10 minutes (the human body is in a severe hypoxia state when exceeding 60 seconds), the controller automatically adjusts the opening of the proportional valve to increase the intake flow rate of the nitrogen-oxygen mixed gas, so that the oxygen concentration in the transparent sleeping tent increases by 1% within 1 minute. If there is no sleep hypopnea event or sleep apnea event, the oxygen concentration remains unchanged. For example, when the oxygen concentration of an officer or soldier is adjusted to 26% and there has been no apnea event, the oxygen concentration in the transparent sleeping tent remains at 26% all the time.

[0063] After the oxygen concentration in the sleeping tent increases, with the increase of the oxygen uptake of the human body, the breathing condition will improve, but it cannot be improved immediately. Therefore, the present invention designs an interval waiting time of 10 minutes. After an interval of 10 minutes, continue the next 10-minute monitoring. If there is still a sleep hypopnea event or a sleep apnea event exceeding 60 seconds, continue to increase the intake flow rate to make the oxygen concentration increase by 1% within 1 minute. If there is no sleep hypopnea event or sleep apnea event, the oxygen concentration remains unchanged; wait for another 10 minutes, continue the next 10-minute monitoring, and continuously monitor the sleep breathing until there is no sleep apnea or the oxygen concentration in the transparent sleeping tent increases to 30%.

[0064] While monitoring the sleep breathing status of officers and soldiers, the present invention also monitors the blood oxygen saturation of officers and soldiers.

[0065] S3.2. Monitor the blood oxygen saturation of officers and soldiers.

[0066] If the blood oxygen saturation of officers and soldiers is gradually decreased by 4% or lower than 90% within 5 minutes (a gradual decrease of 4% within 5 minutes indicates that the human body is in an oxygen-deficient process, and at this time, the efficiency of oxygen supply intervention is the highest. In the plateau environment above 3,000 meters, when the blood oxygen saturation is higher than 90%, the human body has no oxygen-deficiency symptoms and does not affect sleep), the controller automatically adjusts the opening degree of the proportional valve to increase the intake flow rate of the nitrogen-oxygen mixed gas, so that the oxygen concentration in the transparent sleeping tent increases by 1% within 1 minute. If the blood oxygen saturation of the officers and soldiers is normal, the oxygen concentration remains unchanged.

[0067] After the oxygen concentration in the transparent sleeping tent increases, as the oxygen intake of the human body increases, the blood oxygen saturation will immediately be improved. Therefore, after increasing the oxygen concentration in the transparent sleeping tent, this invention starts the next 5-minute monitoring after an interval of 5 minutes. If it is still found that the blood oxygen saturation of the officers and soldiers decreases by 4% or is lower than 90% within 5 minutes, the intake flow rate is continuously increased so that the oxygen concentration in the transparent sleeping tent increases by 1% again within 1 minute. If the blood oxygen saturation of the officers and soldiers is normal, the oxygen concentration remains unchanged; continue the next 5-minute monitoring until the blood oxygen saturation reaches 90% or the oxygen concentration in the transparent sleeping tent increases to 30%.

[0068] In the plateau oxygen-deficient environment, individual differences are very large. This invention automatically adjusts the delivered oxygen concentration by real-time monitoring of the sleep breathing events and oxygen-deficient degree of officers and soldiers, reduces apnea events, ensures that each officer and soldier is in the optimal sleep environment, and better improves the sleep quality of each officer and soldier.

[0069] Figure 3 The schematic diagram of the oxygen supply system for improving the partial environmental oxygen partial pressure in the plateau border defense post of this invention is shown in the figure. As shown, the oxygen supply system includes: a transparent sleeping tent 1, an oxygen generator 2, and a control unit.

[0070] The transparent sleeping tent 1 forms a relatively airtight space. The front of the transparent sleeping tent 1 is provided with an openable entrance 13, and people can enter the transparent sleeping tent 1 through this opening. A ventilation window 11 is opened at one end of the transparent sleeping tent for ventilation; an air inlet 12 is provided at the other end of the transparent sleeping tent, and this air inlet is connected to the oxygen outlet of the oxygen generator 2 through a pipeline.

[0071] The control unit includes a controller 31, a handheld remote controller 32, a blood oxygen sensor 33, a piezoelectric sensor 34, an oxygen concentration sensor 35, and a proportional valve 36. When officers and soldiers lie in the transparent sleeping tent 1 to rest, the blood oxygen sensor 33 can be put on the finger to monitor the blood oxygen saturation in the blood. The oxygen concentration sensor 35 is arranged in the transparent sleeping tent to monitor the oxygen content in the transparent sleeping tent in real time. The piezoelectric sensor 34 is placed on the bottom surface of the transparent sleeping tent, horizontally placed at one-third of the distance from the head, that is, at the position of the human chest when the human body lies down to rest. When officers and soldiers sleep, no matter what sleeping position they are in, the human body presses on the piezoelectric sensor 34, and the piezoelectric sensor automatically monitors the changes in the heart rate, breathing, and body position of the officers and soldiers, so as to judge the sleep state / sleep quality of the officers and soldiers.

[0072] The signal output ends of the blood oxygen sensor 33, the oxygen concentration sensor 35, and the piezoelectric sensor 34 are connected to the signal input end of the controller 31 through wires, and the signal output end of the controller 31 is connected to the control end of the proportional valve 36 through wires. The controller 31 adjusts the opening degree of the proportional valve 36 according to the oxygen content in the transparent sleeping tent and the sleep conditions of the officers and soldiers such as heart rate, body position change, blood oxygen saturation, etc., so as to adjust the oxygen concentration in the transparent sleeping tent.

[0073] Officers and soldiers can also adjust the oxygen content in the transparent sleeping tent through the handheld remote controller 32. The handheld remote controller is connected to the controller wirelessly, sends instructions to the controller, and the controller controls the opening degree of the proportional valve according to the instructions of the handheld remote controller.

[0074] Since slight noise will be generated when the oxygen generator outputs the mixed gas, in order not to affect the sleep of officers and soldiers, it is recommended that when officers and soldiers rest, their heads are close to the ventilation window 11 and their feet are close to the air inlet 12 and the oxygen generator 2 to ensure that the noise at the head position is small.

[0075] The production material of the transparent sleeping tent constituting the present invention is selected as food-grade TPU material, which is environmentally friendly and odorless, and eliminates secondary pollution.

[0076] During installation, the transparent sleeping tent can be directly tied to the bed frame (such as a bunk bed) through ropes or hung on the bed using iron rods / bamboo poles. Of course, the transparent sleeping tent of the present invention may further include a telescopic keel bracket 14 for supporting the tent 15 that constitutes the transparent sleeping tent.

[0077] In order to save space during distribution and transportation, the keel bracket 14 is formed by overlapping N telescopic metal rods, and the metal rods can be made of metal materials or made of light and strong carbon fiber materials. When in use, different sizes of keel brackets can be overlapped according to needs. In order to make the overlapped keel bracket more stable, a fixing buckle or an adjusting buckle can be arranged at the end of the metal rod.

[0078] The piezoelectric sensor 34 constituting the present invention is strip-shaped or ribbon-shaped, and is laid on the bottom surface of the transparent sleeping tent or placed under the mattress. The present invention may further include a sleeping pad 16 made of high-compression sponge, which is laid on the bottom of the transparent sleeping tent, and the piezoelectric sensor 34 is buried at one-third of the end of the sleeping pad (near the head side). In this way, when the officers and soldiers lie down to rest, sleep monitoring can be carried out in real time. The bottom of the tent 15 and the sleeping pad 16 are connected by a zipper 17 to form a relatively airtight space.

[0079] When the officers and soldiers are sleeping, no matter how they turn over, the piezoelectric sensor 34 can monitor the physiological parameters of the officers and soldiers in real time, such as heart rate, respiration, and body position changes, etc., and can also automatically monitor sleep breathing events. For example, when the piezoelectric sensor monitors that the amplitude of the respiratory wave during sleep is significantly reduced (less than 50%), it can be judged that the officers and soldiers are in a sleep hypopnea event at this time. If the monitored amplitude of the respiratory wave during sleep is significantly reduced (less than 20%), it can be judged that the officers and soldiers are in a sleep apnea event at this time.

[0080] To meet the requirements of the Internet of Things, the controller 31 of the present invention is provided with an Internet of Things data transmission interface. The signal output ends of the blood oxygen sensor 33, the oxygen concentration sensor 35, and the piezoelectric sensor 34 are connected to the Internet of Things data transmission interface through wires, and the monitored data is output through Bluetooth, TCP, or serial port for data collection and evaluation.

[0081] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An oxygen supply method for improving the partial environmental oxygen pressure in plateau border defense posts, characterized in that: it comprises the following steps: S1. Use an airtight transparent material to build a transparent sleeping tent, and an oxygen concentration sensor, a blood oxygen sensor and a piezoelectric sensor are arranged in the transparent sleeping tent; S2. Start the oxygen generator to diffusely supply a nitrogen-oxygen mixed gas with an oxygen concentration of 40% - 60% into the transparent sleeping tent. When the altitude is 3000m - 4000m, set the initial oxygen concentration in the transparent sleeping tent to 24%, and when the altitude is above 4000m, set the initial oxygen concentration in the transparent sleeping tent to 25%; S3. Real-time monitor the heart rate, breathing, blood oxygen saturation and body position of the officers and soldiers through the piezoelectric sensor and the blood oxygen sensor, and control the oxygen concentration in the transparent sleeping tent according to the sleep breathing condition and hypoxia degree of the officers and soldiers, so that the oxygen concentration in the transparent sleeping tent is 24% - 30%; The piezoelectric sensor is a strip-shaped or belt-shaped piezoelectric sensor, which is horizontally placed at one-third of the head of the transparent sleeping tent. No matter what sleeping position the officers and soldiers are in, this piezoelectric sensor can monitor the heart rate, breathing and body position information of the human body; S3.

1. Monitor the sleep breathing condition of the officers and soldiers; If it is monitored that the officers and soldiers have a sleep hypoventilation event or a sleep apnea event exceeding 60 seconds within 10 minutes, the controller automatically adjusts the opening degree of the proportional valve to increase the intake air flow, so that the oxygen concentration in the transparent sleeping tent increases by 1% within 1 minute, otherwise the oxygen concentration remains unchanged; At an interval of 10 minutes, continue the next 10-minute monitoring. If there is still a sleep hypoventilation event or a sleep apnea event exceeding 60 seconds, continue to increase the intake air flow to increase the oxygen concentration by 1% within 1 minute, otherwise the oxygen concentration remains unchanged; Continue the sleep breathing monitoring until there is no sleep apnea or the oxygen concentration in the transparent sleeping tent increases to 30%; While monitoring the sleep breathing condition of the officers and soldiers, monitor the blood oxygen saturation of the officers and soldiers and execute step S3.2; S3.

2. Monitor the blood oxygen saturation of the officers and soldiers; If it is monitored that the blood oxygen saturation of the officers and soldiers drops by 4% within 5 minutes or is lower than 90%, the controller automatically adjusts the opening degree of the proportional valve to increase the intake air flow, so that the oxygen concentration in the transparent sleeping tent increases by 1% within 1 minute, otherwise the oxygen concentration remains unchanged; Conduct the next 5-minute monitoring. If there is still a situation where the blood oxygen saturation drops by 4% within 5 minutes or is lower than 90%, continue to increase the intake air flow to increase the oxygen concentration in the transparent sleeping tent by 1% within 1 minute, otherwise the oxygen concentration remains unchanged; Continue the blood oxygen saturation monitoring until the blood oxygen saturation reaches 90% or the oxygen concentration in the transparent sleeping tent increases to 30%.

2. The oxygen supply method for improving the partial environmental oxygen pressure in plateau border defense posts according to claim 1, characterized in that: The transparent sleeping tent is a relatively enclosed independent space. An air inlet is opened at the foot position of the transparent sleeping tent, and this air inlet is connected to the air outlet of the oxygen generator through a pipeline, and a proportional valve is connected in series on the connecting pipeline; A safety ventilation window is opened at the head position of the transparent sleeping tent; The signal output ends of the oxygen concentration sensor, blood oxygen sensor, and piezoelectric sensor are connected to the control signal input end of the controller through wires; the signal output end of the controller is connected to the control end of the proportional valve connected in series on the oxygen delivery pipeline through wires. The controller adjusts the opening degree of the proportional valve according to the information monitored by the oxygen concentration sensor, blood oxygen sensor, and piezoelectric sensor to control the oxygen concentration in the transparent sleeping tent.

3. An oxygen supply system for increasing the partial pressure of oxygen in the local environment of a plateau border post, characterized in that: it includes a transparent sleeping tent, an oxygen generator, and a control unit; The transparent sleeping tent forms a relatively airtight space and is made of airtight transparent material; there is an openable entrance on the front of the transparent sleeping tent, a ventilation window is opened at the head position of the transparent sleeping tent, and an air inlet is opened at the foot position of the transparent sleeping tent. The air inlet is connected to the air outlet of the oxygen generator through a pipeline; The oxygen generator outputs a nitrogen-oxygen mixed gas with an oxygen concentration of 40% - 60%; The control unit includes a controller, a handheld remote control, a blood oxygen sensor, an oxygen concentration sensor, a piezoelectric sensor, and a proportional valve; The oxygen concentration sensor is arranged inside the transparent sleeping tent to monitor the oxygen content inside the transparent sleeping tent in real time; The piezoelectric sensor is a strip-shaped or belt-shaped piezoelectric sensor, placed at the bottom of the transparent sleeping tent, horizontally placed at one-third of the distance from the head of the transparent sleeping tent to monitor the changes in the heart rate, breathing, and body position of the human body; The blood oxygen sensor is placed inside the transparent sleeping tent and can be sleeved on the finger of the officer or soldier to monitor the changes in the blood oxygen saturation of the human body; the proportional valve is connected in series in the oxygen supply output pipeline of the oxygen generator; The signal output ends of the blood oxygen sensor, oxygen concentration sensor, and piezoelectric sensor are connected to the signal input end of the controller through wires, and the signal output end of the controller is connected to the control end of the proportional valve through wires.

4. The oxygen supply system for increasing the partial pressure of oxygen in the local environment of a plateau border post according to claim 3, characterized in that: The transparent sleeping tent is made of non-toxic, odorless, and pollution-free material; The length of the transparent sleeping tent is 1.9m - 2.1m, the width is 0.8m - 1.2m, and the height is 1.4m - 1.6m.

5. The oxygen supply system for increasing the partial pressure of oxygen in the local environment of a plateau border post according to claim 4, characterized in that: The transparent sleeping tent further includes a sleeping pad made of high-compression sponge, and the sleeping pad is laid at the bottom of the transparent sleeping tent; The piezoelectric sensor is buried in the sleeping pad.

6. The oxygen supply system for increasing the partial pressure of oxygen in the local environment of a plateau border post according to claim 5, characterized in that: The transparent sleeping tent is composed of a transparent tent and a keel support; The keel support is formed by overlapping N retractable metal rods for supporting the tent; The bottom of the tent is connected to the sleeping pad through a zipper to form a relatively airtight space.

7. The oxygen supply system for increasing the partial pressure of oxygen in the local environment of a plateau border post according to claim 6, characterized in that: The controller includes an Internet of Things data transmission interface; The signal output ends of the blood oxygen sensor, oxygen concentration sensor, and piezoelectric sensor are connected to the controller through wires and perform data transmission with other devices via Bluetooth, TCP, or serial port.

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