CN-121987441-A - Personnel sleep cycle-based diffuse oxygen supply control method

CN121987441ACN 121987441 ACN121987441 ACN 121987441ACN-121987441-A

Abstract

The invention discloses a diffuse oxygen supply control method based on a personnel sleep period, which comprises the following steps: the device comprises a sleep period monitoring module, an oxygen supply calculating module and an oxygen releasing module. The sleep period monitoring module is used for monitoring the sleep period of a human body in a sleep space, the oxygen monitoring module is used for monitoring oxygen data information inside and outside the sleep space and air pressure data information inside and outside the sleep space, the oxygen supply calculating module is used for calculating the optimal concentration of oxygen in the sleep space according to the collected oxygen data inside and outside the sleep space so as to ensure that the optimal oxygen concentration in the sleep space can reach the optimal oxygen demand according to the sleep period of a person, the oxygen releasing module adopts diffuse oxygen supply, after an oxygen supply starting instruction is sent out, the oxygen tank partial pressure and the valve opening are adjusted to control the oxygen supply concentration to be the optimal oxygen demand, and meanwhile, the oxygen is uniformly dispersed in a diffuse oxygen supply mode, so that discomfort caused by sleeping of the user is avoided.

Inventors

YU WEI
LIAO SONG
WANG CHENYANG
LI CHAOHONG
YI HONGYU
JIANG YUAN
ZHANG PEIWEN

Assignees

重庆大学

Dates

Publication Date: 20260508
Application Date: 20260107

Claims (10)

1. A diffuse oxygen supply control method based on a personnel sleep period is characterized in that, The method comprises the following steps: Step 1) arranging a piezoelectric sensor array under a sleeping cabin mattress; step 2) monitoring physiological signals of a person in a sleep state in real time by utilizing a piezoelectric sensor array, wherein the physiological signals comprise body movement frequency heart rate, respiratory rate and body temperature; Step 3), the data analysis end processes physiological signals of the personnel by using a sleep period prediction model to obtain a sleep period of the personnel, wherein the sleep period comprises a deep sleep period, a rapid eye movement period and a non-target period, if the sleep period is the deep sleep period or the rapid eye movement period, the step 4) is carried out, otherwise, the step 2) is returned, and the non-target period refers to the sleep period except the deep sleep period and the rapid eye movement period; Step 4), the data analysis end generates an oxygen supply instruction according to the sleep period of the personnel and sends the oxygen supply instruction to the oxygen supply end, wherein the oxygen supply instruction carries target oxygen concentration; Step 5) monitoring the real-time oxygen concentration of the area where the face of the person is located at the oxygen supply tail end in real time, judging whether the real-time oxygen concentration is larger than or equal to the target oxygen concentration, if so, not supplying oxygen, returning to the step 2), and if not, calculating the oxygen supply according to the oxygen supply instruction and the real-time oxygen concentration of the area where the face of the person is located, and entering the step 6); And 6) based on the oxygen supply amount, oxygen is supplied by utilizing the oxygen supply end until the target oxygen concentration or the sleep period changes, and the step 2) is returned to realize dynamic closed-loop control.
2. The method for controlling the diffuse oxygen supply based on the sleep cycle of a person according to claim 1, wherein the piezoelectric sensor array is prepared by using a polyvinylidene fluoride film.
3. The diffuse oxygen supply control method based on the sleep cycle of the person according to claim 1 is characterized in that a XGBoost model is adopted as the sleep cycle prediction model, the sleep cycle prediction model is obtained through training of a historical dataset, and the historical dataset comprises a plurality of groups of physiological signals and corresponding sleep cycles.
4. The method for controlling diffuse oxygen supply based on the sleep cycle of a person according to claim 1, wherein in the step 4), the data analysis end stores oxygen supply instructions in the deep sleep stage and oxygen supply instructions in the rapid eye movement stage of the person; And the data analysis end calls a corresponding oxygen supply instruction according to the sleep period of the personnel.
5. The method for controlling the diffuse oxygen supply based on the sleep cycle of a person according to claim 1, wherein the oxygen supply terminal comprises an oxygen monitoring module, an oxygen supply calculating module and an oxygen releasing module; the oxygen monitoring module is used for collecting the oxygen concentration of the area where the face of the person is located; The oxygen supply calculation module calculates oxygen supply according to the oxygen supply instruction and the oxygen concentration of the area where the face of the person is positioned; the oxygen release module calculates oxygen supply based on the oxygen concentration to supply oxygen to the sleep cabin.
6. The method for controlling diffuse oxygen supply based on the sleep cycle of a person according to claim 1, wherein the oxygen supply calculation module stores an oxygen supply amount-real-time oxygen concentration-target oxygen concentration relation equation; The oxygen supply calculation module calculates the oxygen supply according to the relation equation of the oxygen supply, the real-time oxygen concentration and the target oxygen concentration; the oxygen supply amount-real-time oxygen concentration-target oxygen concentration relation equation is as follows: (1) wherein x is oxygen supply; is the target oxygen concentration; Is the real-time oxygen concentration; Is fresh air quantity.
7. The method for controlling the diffuse oxygen supply based on the sleep cycle of a person according to claim 6, wherein the constructing step of the oxygen supply-real-time oxygen concentration-target oxygen concentration relation equation comprises the steps of: s1) constructing an indoor oxygen amount balance equation, namely: (2) Wherein, the Is the air intake; Is the real-time oxygen concentration; for a certain infinite small time interval; the oxygen supply flow is provided; Is the exhaust air quantity; Is the indoor oxygen concentration at a certain moment; is the room volume; Is that An increase in room oxygen concentration over a time interval; s2) constructing an air quantity balance equation, namely: (3) in the formula, Is the fresh air quantity; S3) bringing the air quantity balance equation into an indoor oxygen quantity balance equation to obtain: (4) s4) converting the formula (4) to obtain: (5) S5) setting the oxygen supply time In, the indoor oxygen concentration is controlled by Is changed into Updating formula (5), and obtaining: (6) in the formula, The indoor oxygen concentration is the initial time; To pass by Indoor oxygen concentration after time; s6) carrying out integral solution on the formula (6) to obtain: (7) s7) converting the formula (7) to obtain the indoor oxygen concentration at any time The method comprises the following steps: (8) S8) oxygen supply time Towards infinity, the time index tends to be infinitesimal, and a steady-state oxygen supply calculation equation is constructed, namely: (9) In the middle of Oxygen supply for steady state; S9) enabling the steady-state oxygen supply amount to be the set target oxygen concentration, and thus constructing an oxygen supply amount-real-time oxygen concentration-target oxygen concentration relation equation.
8. The diffuse oxygen supply control method based on the sleep cycle of the personnel according to claim 5, wherein the oxygen release module is a diffuse oxygen supply device and comprises an oxygen generator (1), a pressure regulating valve (2), a flowmeter (4), an electronic proportional valve (3) and a terminal gas flow guiding component (5); wherein the oxygen generator (1) is used for supplying oxygen; the pressure regulating valve (2) is used for regulating the pressure at the outlet of the oxygen generator; The electronic proportional valve (3) controls the oxygen flow by adjusting the opening of the valve; the flowmeter (4) is used for monitoring the actual oxygen flow in the pipeline; The terminal gas guiding component (5) is used for carrying out diffuse oxygen supply.
9. The method for controlling the diffuse oxygen supply based on the sleep cycle of the person according to claim 8, wherein the distance between the diffuse oxygen supply device and the person is 0.5 m-1.5 m.
10. The method for controlling the diffuse oxygen supply based on the sleep cycle of a person according to claim 8, wherein the diffuse oxygen supply device is installed inside or outside the sleep compartment; when the diffusion type oxygen supply device is arranged in the sleeping cabin, the oxygen diffusion device is arranged at the top or the side surface of the sleeping cabin.

Description

Personnel sleep cycle-based diffuse oxygen supply control method Technical Field The invention relates to the field of health, in particular to a diffuse oxygen supply control method based on a sleep cycle of personnel. Background Sleep is the most basic physiological behavior of the human body, and 1/3 of the time is spent in sleep. Good sleep is beneficial to relieving fatigue, promoting physical health, improving work and learning efficiency and reducing the risk of suffering from chronic diseases. Therefore, maintaining a good sleep state is of great importance for the development of individuals. However, in the current social environment with fast rhythm and high pressure, nearly 6 adults consider that the sleep quality of the people is bad, various sleep problems and even sleep disorders exist, and the people cannot sleep, cannot sleep deeply and cannot sleep enough, so that the people become the 'time disease' related to the health of 3 hundred million people. The oxygen supply has an important influence on the overall quality of sleep, and proper oxygen supply is a key to ensuring smooth breathing during sleep. If the oxygen content in the air is insufficient, sleep interruption may result, especially in the case of sleep disordered breathing. Variations in oxygen levels can also affect sleep cycles, i.e., shallow sleep areas, deep sleep areas, and rapid eye movement areas. Hypoxia (oxygen concentration <18% in air) may reduce the ratio of the deep sleep period and the rapid eye movement period, which are important periods of repair and memory storage of the body, and the reduction of the ratio of the deep sleep period and the rapid eye movement period directly affects the sleep quality. Currently, more people want to sleep in a small environmental chamber (sleep chamber) to improve the sleeping quality of the human body. However, a real-time non-contact oxygen supply control method based on the sleep period of the human body is lacking in the oxygen environment control in the sleep cabin, the sleep state of the human body is accurately judged in real time, and then more scientific and reasonable oxygen supply control measures are adopted, so that the sleeping quality of the human body is improved. However, the existing sleep-aiding system has the following defects that 1) the existing sleep monitoring device adopts a contact type monitoring device, such as a bracelet, a body movement recorder and the like, an evaluation report is formed after sleeping, and the sleeping state of a human body cannot be accurately evaluated in real time. And the human body can not avoid disturbing the sleep state when wearing the contact type monitoring devices, and the sleep quality is affected. 2) The sleeping cabin limits the activities of sleeping personnel and can potentially affect sleeping. 3) When the existing sleeping cabin is used for building an indoor oxygen environment, the difference of oxygen demands of people in different sleeping stages is not considered, the oxygen supply amount cannot be adjusted according to the real-time sleeping period of a human body, and sleeping discomfort can be caused. Disclosure of Invention The invention aims to provide a diffuse oxygen supply control method based on a sleep cycle of a person, which comprises the following steps of: Step 1) arranging a piezoelectric sensor array under a sleeping cabin mattress; step 2) monitoring physiological signals of a person in a sleep state in real time by utilizing a piezoelectric sensor array, wherein the physiological signals comprise body movement frequency heart rate, respiratory rate and body temperature; Step 3), the data analysis end processes physiological signals of the personnel by using a sleep period prediction model to obtain a sleep period of the personnel, wherein the sleep period comprises a deep sleep period, a rapid eye movement period and a non-target period, if the sleep period is the deep sleep period or the rapid eye movement period, the step 4) is carried out, otherwise, the step 2) is returned, and the non-target period refers to the sleep period except the deep sleep period and the rapid eye movement period; Step 4), the data analysis end generates an oxygen supply instruction according to the sleep period of the personnel and sends the oxygen supply instruction to the oxygen supply end, wherein the oxygen supply instruction carries target oxygen concentration; Step 5) monitoring the real-time oxygen concentration of the area where the face of the person is located at the oxygen supply tail end in real time, judging whether the real-time oxygen concentration is larger than or equal to the target oxygen concentration, if so, not supplying oxygen, returning to the step 2), and if not, calculating the oxygen supply according to the oxygen supply instruction and the real-time oxygen concentration of the area where the face of the person is located, and entering the step 6); And 6) based on the oxygen supply amou