Intelligent oxygen supply method, intelligent oxygen supply device and intelligent oxygen supply system

Abstract

The invention provides an intelligent oxygen supply method, an intelligent oxygen supply device and an intelligent oxygen supply system. The intelligent oxygen supply method comprises the following steps: S1, acquiring breathing characteristic data of a user; s2, the breathing characteristic data are processed, the difference value of the breathing characteristic data at the first moment and the breathing characteristic data at the second moment is obtained, the ratio k of the difference value to the self-adaptive time window in the corresponding time period from the second moment to the first moment is calculated, the second moment is located before the first moment, and the self-adaptive time window is located in the corresponding time period from the second moment to the first moment. The breathing characteristic data comprises breathing frequency f, and a self-adaptive time window b = 60 / f; and S3, whether oxygen is supplied to the user or not is judged, whether the ratio k is larger than zero or not is judged, and when the ratio k is larger than zero and the breathing frequency f is larger than a preset value, oxygen is supplied to the user, so that when the user needs oxygen supply, oxygen can be supplemented in time, meanwhile, oxygen waste is avoided, and the comfort of the user is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oxygen production, and in particular to an intelligent oxygen supply method, an intelligent oxygen supply device and an intelligent oxygen supply system. Background Art

[0002] Oxygen is the material basis for human survival. Once the human body is hypoxic, the quality of life will be seriously reduced, and even life will be endangered. Therefore, how to supply oxygen to the human body in a hypoxic environment is an important topic in human health research. For example, in the hypoxic environment of the plateau, the rescue of critically ill patients, the treatment of patients with cardiovascular and cerebrovascular and respiratory diseases, as well as the mental and physical recovery of workers and oxygen health care, oxygen supply to the human body is required. Summary of the invention

[0003] The main purpose of the present disclosure is to provide an intelligent oxygen supply method, an intelligent oxygen supply device and an intelligent oxygen supply system, which can avoid oxygen waste while supplying oxygen to users in a timely manner.

[0004] In view of the above objectives, the present disclosure provides the following technical solutions:

[0005] The present disclosure provides an intelligent oxygen supply method, which comprises the following steps:

[0006] S1: Obtain user's breathing characteristic data;

[0007] S2: Processing the respiratory characteristic data, obtaining a difference between the respiratory characteristic data at a first moment and the respiratory characteristic data at a second moment, and calculating a ratio k of the difference to an adaptive time window in a time period corresponding to the second moment to the first moment, wherein the second moment is before the first moment, the respiratory characteristic data includes a respiratory frequency f, and the adaptive time window b=60 / f;

[0008] S3: Determine whether to supply oxygen to the user, and determine whether the above ratio k is greater than zero. When the above ratio k is greater than zero and the breathing frequency f is greater than a predetermined value, supply oxygen to the user.

[0009] The intelligent oxygen supply method provided by the present disclosure can monitor the user's breathing characteristic data in real time, and can determine whether to supply oxygen to the user based on the breathing characteristic data. When the user needs oxygen, oxygen can be replenished in time, while avoiding oxygen waste.

[0010] According to an exemplary embodiment of the present disclosure, the intelligent oxygen supply method further includes step S4: before the step of calculating the ratio k, filtering the respiratory characteristic data to reduce the impact of accidental factors on the respiratory characteristic data, thereby improving the reliability of the intelligent oxygen supply device.

[0011] Optionally, the step of filtering the respiratory characteristic data includes: using a wavelet filtering method, a Gaussian filtering method, or a Kalman filtering method for filtering.

[0012] Specifically, the intelligent oxygen supply method also includes step S5: in response to the breathing frequency f, controlling the oxygen supply, when the breathing frequency f satisfies 15≤f≤18, providing a first oxygen supply to the user; when the breathing frequency f satisfies 18<f≤21, providing a second oxygen supply to the user, and the second oxygen supply is greater than the first oxygen supply; when the breathing frequency f satisfies 21<f≤24, providing a third oxygen supply to the user, and the third oxygen supply is greater than the second oxygen supply.

[0013] Furthermore, the respiratory characteristic data includes tidal volume, respiratory rate, minute ventilation, minute alveolar ventilation, or functional residual capacity.

[0014] In another exemplary embodiment of the present disclosure, the ratio k of the difference between the respiratory characteristic data p(i) at the first moment and the respiratory characteristic data p(in) at the second moment and the adaptive time window satisfies the formula:

[0015]

[0016] Wherein, b is the adaptive time window, p is the respiratory characteristic data, i is a specific moment, in is a moment before i, and n=b*the sampling frequency of the respiratory characteristic data.

[0017] On the other hand, the present disclosure provides an intelligent oxygen supply device. The intelligent oxygen supply method as described above is applicable to the intelligent oxygen supply device, which includes an oxygen production module, an oxygen supply nozzle, a switch valve, a respiratory monitoring module and a main control module. The oxygen supply nozzle is used to be inserted into the nasal cavity or oral cavity of a user, and the oxygen supply nozzle is connected to the exhaust port of the oxygen production module through an oxygen supply tube. The switch valve is arranged on the oxygen supply tube to control the conduction of the oxygen supply tube. The respiratory monitoring module is used to monitor the respiratory characteristic data of the user, and the main control module is used to receive the respiratory characteristic data, process the respiratory characteristic data, and determine whether to supply oxygen to the user.

[0018] The intelligent oxygen supply device disclosed in the present invention includes a respiratory monitoring module and a main control module. The respiratory monitoring module monitors the user's respiratory characteristic data in real time to monitor the user's physical health in real time, and cooperates with the main control module to transmit the respiratory characteristic data to the main control module. The main control module determines whether the user has shortness of breath symptoms and whether the user is in an inhalation state based on the respiratory characteristic data. When the user has shortness of breath and is in an inhalation state, the intelligent oxygen supply device can supply oxygen to the user. In this way, through the cooperation of the respiratory monitoring module and the main control module, the intelligence level of the intelligent oxygen supply device is improved.

[0019] Furthermore, the respiratory monitoring module includes an elastic band and a length measuring sensor, the elastic band is used to be wrapped around the chest or abdomen of the user, and the length measuring sensor is used to monitor the elongation of the elastic band and transmit the monitoring data to the main control module.

[0020] Optionally, the intelligent oxygen supply device also includes an air compressor, which is connected to the air inlet of the oxygen production module through an air inlet pipe. When the air compressor is started, it can pressurize air into the oxygen production module; and / or, the main control module can filter the respiratory characteristic data, or perform difference calculation, or the main control module can control the oxygen production module to operate to produce oxygen, or control the switch valve to open to supply oxygen to the user; and / or, the switch valve has multiple openings, and when the user needs oxygen supply, the switch valve can be adjusted to a predetermined opening corresponding to the oxygen supply.

[0021] In another aspect of the present disclosure, an intelligent oxygen supply system is provided, which includes a wearable device and the intelligent oxygen supply device as described above, wherein the wearable device is provided with a storage bin, and the intelligent oxygen supply device is placed in the storage bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or other objects and advantages of the present disclosure will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0023] Figure 1 A structural diagram of an intelligent oxygen supply system provided by an exemplary embodiment of the present disclosure.

[0024] Figure 2 for Figure 1 Another perspective structural diagram of the intelligent oxygen supply system.

[0025] Figure 3 for Figure 1 Schematic diagram of the structure of the oxygen production device.

[0026] Figure 4 A flow chart of an intelligent oxygen supply method provided by an exemplary embodiment of the present disclosure.

[0027] Figure 5 The present invention is a flowchart of an intelligent oxygen supply method provided by another exemplary embodiment of the present invention.

[0028] Figure 6 The present invention is a flowchart of an intelligent oxygen supply method provided by another exemplary embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1. Intelligent oxygen supply device; 2. Wearable device;

[0031] 3. Air intake pipe; 4. Oxygen supply pipe;

[0032] 11. Oxygen production module;

[0033] 12. Air compressor; 13. Power module;

[0034] 14. Main control module; 15. Oxygen supply nozzle;

[0035] 16. Switch valve; 17. Respiration monitoring module;

[0036] 18. Remote control display module; 21. Wearable body;

[0037] 22. Shoulder straps; 23. Storage compartment. DETAILED DESCRIPTION

[0038] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that the implementation of the present disclosure is limited to the embodiments set forth herein. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0039] In daily life, you may sometimes feel unwell and need oxygen. For example, but not limited to, when you travel to plateau areas during vacation, in order to avoid hypoxia in the plateau environment, you can carry an intelligent oxygen supply device to replenish oxygen in time when you feel unwell to ensure your own health.

[0040] Reference Figures 1 to 3 The present disclosure provides an intelligent oxygen supply system, which includes an intelligent oxygen supply device 1 and a wearable device 2. The intelligent oxygen supply device 1 is used to provide oxygen to a user, and the wearable device 2 is used to be worn on a body part of the user. The wearable device 2 is provided with at least one accommodating bin 23, and the intelligent oxygen supply device 1 is accommodated in at least one accommodating bin 23. In this way, the intelligent oxygen supply device 1 can be worn on a body part of the user along with the wearable device 2, so that it can move with the movement of the user without occupying the user's hands, thereby improving the convenience of using the intelligent oxygen supply system.

[0041] As an example, the wearable device 2 provided in this embodiment can be formed into a structure similar to a backpack, but is not limited thereto. The wearable device 2 includes a wearable body 21, which has two shoulder straps 22, and the shoulder straps 22 are used to be worn on the shoulders of the user, so that the storage compartment 23 is located behind the user or in front of the chest. In an optional embodiment, the storage compartment can be arranged on the side of the wearable body 21 facing away from the user, that is, the storage compartment is arranged on the outside of the wearable body 21, but is not limited thereto. Figure 1 and Figure 2 The wearable device 2 is described by taking the example that the storage compartment 23 is located behind the user. If necessary, the storage compartment 23 can also be located in front of the user's chest (not shown).

[0042] This embodiment is described by taking the example that the wearable device 2 can be worn on the user's shoulders through the shoulder strap 22, but it is not limited to this. As needed, the wearable device 2 can also be worn on the user's legs, waist, arms and other body parts through straps.

[0043] Continuing to refer to the drawings, the storage compartment 23 for accommodating the intelligent oxygen supply device 1 can be arranged on the wearable body 21. For example but not limited to, the storage compartment 23 can be formed by enclosing fabric, but not limited to this.

[0044] Reference Figure 2 As needed, the storage bin 23 can be enclosed by a fabric piece and the wearable body 21 to form a cavity with a single opening. The inner cavity of the storage bin 23 can be connected to the outside through the single opening, and the intelligent oxygen supply device 1 can be loaded into the storage bin 23 through the single opening.

[0045] In order to prevent the intelligent oxygen supply device 1 from accidentally jumping out, the single opening can be set at the top of the storage bin 23, but it is not limited thereto. As needed, a bin cover can be set at the single opening to cover the single opening to prevent the intelligent oxygen supply device 1 from jumping out of the single opening.

[0046] In an optional embodiment, the storage bin 23 can be formed by a bin body strap (not shown) and a wearable main body 21, the bin body strap has at least one free end, and the free end is detachably connected to the wearable main body 21 through Velcro, and when the free end is connected to the wearable main body 21, the bin body strap and the wearable main body 21 enclose the storage bin 23. In this way, the bin body strap can bypass the pipelines and lines of the intelligent oxygen supply device 1 and connect to the wearable main body 21, so that the pipelines and lines of the intelligent oxygen supply device 1 can be passed through the gaps between adjacent bin body straps, avoiding excessive bending of the pipelines to cause poor ventilation, or excessive bending of the lines to cause damage to the life.

[0047] The storage bin 23 provided in the present embodiment can be formed by enclosing a bin body strap and a wearable main body 21, and is detachably connected to the bin body strap and the wearable main body 21. There is no need to provide an additional opening for the storage bin 23 for loading the intelligent oxygen supply device 1. The storage bin 23 can bind the intelligent oxygen supply device 1 in all directions up, down, left and right, thereby avoiding relative movement of the intelligent oxygen supply device 1 and further improving the reliability of the use of the intelligent oxygen supply system.

[0048] As an example, the bin body straps may include cross-connected transverse straps and vertical straps, so that the bin body straps can limit the intelligent oxygen supply device 1 in multiple directions to prevent accidental leakage of the intelligent oxygen supply device 1, thereby improving the ease of use of the intelligent oxygen supply system.

[0049] In an optional embodiment, in order to improve the wearing comfort of the wearable device 2, the wearable body 21 is made of wear-resistant flexible fabric, but not limited to this.

[0050] Continue to refer to Figures 1 to 3 The intelligent oxygen supply device 1 includes an oxygen production module 11, an air compressor 12 and a power module 13. The oxygen production module 11 is used to produce oxygen. The air compressor 12 is connected to the oxygen production module 11 through the air inlet pipe 3. During the operation of the air compressor 12, air can be compressed into the oxygen production module 11. The power module 13 is electrically connected to the oxygen production module 11 and the air compressor 12 by wires, respectively, and is used to drive the oxygen production module 11 and the air compressor 12 to operate, but is not limited thereto.

[0051] In this embodiment, the power module 13 may be a battery, but the present invention is not limited thereto. The oxygen production module 11, the air compressor 12, and the power module 13 are respectively disposed in different storage bins 23, but the present invention is not limited thereto. The oxygen production module 11, the air compressor 12, and the power module 13 may be disposed in the same storage bin 23 as required.

[0052] Reference Figure 3 The intelligent oxygen supply device 1 further includes an oxygen supply nozzle 15, a switch valve 16, a respiratory monitoring module 17 and a main control module 14. The oxygen supply nozzle 15 may be an air outlet nozzle of the intelligent oxygen supply device 1, which is inserted into the mouth or nasal cavity of the user so that the intelligent oxygen supply device 1 can supply oxygen to the user, but the invention is not limited thereto. As required, the oxygen supply nozzle 15 may be configured to fit the shape of the mouth, or configured to fit the nostrils. For example, Figure 2 The oxygen supply nozzle 15 is used to be inserted into the nasal cavity of the user, but the present invention is not limited thereto.

[0053] Specifically, the exhaust end of the oxygen production module 11 is connected to the oxygen supply nozzle 15 through the oxygen supply pipe 4, and the switch valve 16 (such as Figure 3As shown in the figure, the oxygen supply pipe 4 is provided to control whether oxygen is supplied to the oxygen supply nozzle 15 by opening and closing the switch valve 16, so that the oxygen supply time can be controlled according to the actual needs of the user to avoid waste of oxygen.

[0054] As an example, the oxygen production module 11 includes a molecular sieve oxygen generator, but is not limited thereto.

[0055] The intelligent oxygen supply device 1 disclosed in the present invention mainly includes four modules, namely, a main control module 14, an oxygen production module 11, an air compressor 12 and a power supply module 13. Through modular design, the intelligent oxygen supply device 1 is connected on site through pipelines or lines with quick connectors, thereby improving the on-site assembly efficiency of the intelligent oxygen supply device 1.

[0056] Specifically, the air compressor 12 is connected to the air inlet end of the oxygen production module 11 through a pipeline so as to be able to pressurize air into the oxygen production module 11. Since the oxygen production module 11 is a molecular sieve oxygen generator, the molecular sieve oxygen generator can use 5A zeolite molecular sieve as an adsorbent. The adsorption capacity of the 5A zeolite molecular sieve for nitrogen is greater than that for oxygen. Therefore, nitrogen is preferentially adsorbed and enriched in the solid phase of the molecular sieve, and oxygen is enriched in the non-solid phase of the molecular sieve, thereby forming oxygen. That is to say, the molecular sieve oxygen generator in this embodiment increases the oxygen concentration.

[0057] Furthermore, the exhaust end of the oxygen production module 11 is connected to the oxygen supply nozzle 15 through the oxygen supply pipe 4, and the switch valve 16 is arranged on the oxygen supply pipe 4. Normally, the switch valve 16 is in a closed state to avoid oxygen leakage.

[0058] The intelligent oxygen supply system provided by the present disclosure includes an oxygen production module 11 formed by a molecular sieve oxygen generator, which has a simple structure and is easy to carry, thereby improving the convenience of using the intelligent oxygen supply device 1. The intelligent oxygen supply system includes a wearable device 2 that can be worn on a body part of the wearer, so that the intelligent oxygen supply device 1 can be carried around, further improving the convenience of using the intelligent oxygen supply system.

[0059] As an example, the intelligent oxygen supply device 1 further includes a remote control display module 18, which is wirelessly connected to the main control module 14 so as to be able to interact with the main control module 14, facilitating human-computer interaction, and the user can remotely control the main control module 14, further improving the convenience of use of the intelligent oxygen supply system. In this embodiment, the remote control display module 18 can also display relevant working parameters of the intelligent oxygen supply device 1 to further improve the convenience of use, but is not limited thereto.

[0060] The breathing monitoring module 17 is used to monitor the breathing characteristic data of the user. The breathing characteristic data can be obtained through the breathing monitoring module 17 to be used as a basis for determining whether the user needs oxygen supply.

[0061] As an example, the respiratory monitoring module in this embodiment may include an elastic band and a length measuring sensor connected to the elastic band, the elastic band is used to be wrapped around the chest or abdomen of the user to monitor the expansion of the chest or abdomen of the user, thereby monitoring the user's respiratory state. When the length measuring sensor detects that the length of the elastic band gradually increases within a predetermined time period, it can be determined that the chest or abdomen of the user has expanded during this period, thereby inferring that the user is in an inhalation state during this period.

[0062] Specifically, when the elastic band is wrapped around the chest or abdomen of the user, the elastic band will gradually stretch when the user inhales, and gradually shrink when the user exhales. Therefore, it can be judged in reverse that when the length measurement sensor detects that the length of the elastic band is gradually increasing, it indicates that the elastic band is gradually stretching, and at this time it can be considered that the user is in an inhalation state. When the length measurement sensor detects that the length of the elastic band is gradually decreasing, it indicates that the elastic band is gradually shrinking, and at this time it can be considered that the user is in an exhalation state.

[0063] This embodiment monitors whether the user is in an inhalation state or an exhalation state by the expansion and contraction of the elastic band to prepare for supplying oxygen to the user. For example, but not limited to, the intelligent oxygen supply device can supply oxygen to the user when the user is in an inhalation state, thereby improving the oxygen utilization rate of the intelligent oxygen supply device.

[0064] Further, as an example, when the breathing characteristic data includes breathing frequency, and the breathing frequency obviously exceeds the normal breathing frequency, it can be determined that the user is breathing rapidly and needs oxygen supply, but it is not limited to this.

[0065] The respiratory monitoring module 17 may also include a respiratory rate sensor for monitoring the respiratory rate f of the user and transmitting the respiratory rate f to the main control module 14. The main control module 14 can determine whether to supply oxygen to the user based on the respiratory rate f, and control the air compressor 12 and the oxygen production module 11 to run or stop running.

[0066] Specifically, when the respiratory frequency f is greater than a predetermined value, it indicates that the user is breathing rapidly and preparations need to be made to supply oxygen to the user. At this time, the main control module 14 can control the operation of the air compressor 12 and the oxygen production module 11 according to the respiratory frequency f to prepare for supplying oxygen to the user. When the user's respiratory frequency f is less than a predetermined value, it indicates that the user is breathing smoothly and there is no need to supply oxygen to the user. The main control module 14 can control the air compressor 12 and the oxygen production module 11 to stop operating according to the respiratory frequency f.

[0067] In order to avoid waste of oxygen, the intelligent oxygen supply device 1 provided in the present disclosure provides oxygen to the user when the user's breathing frequency f is greater than a predetermined value and is in an inhalation state, thereby improving the utilization rate of oxygen.

[0068] On the other hand, the main control module 14 can control the opening or closing of the switch valve 16 to supply oxygen to the user when the user is in the process of inhalation, thereby further improving the oxygen utilization rate.

[0069] In addition, the main control module 14 can also process the respiratory characteristic data. For example, but not limited to, the data processing may include filtering the data to reduce the impact of accidental factors on the respiratory characteristic data, thereby improving the reliability of the intelligent oxygen supply device, but not limited to this.

[0070] In summary, the main control module 14 is used to receive the breathing characteristic data, and judge whether the user needs oxygen supply according to the breathing characteristic data. When oxygen needs to be supplied to the user, the main control module 14 controls the oxygen production module 11 to produce oxygen to prepare for oxygen supply. Furthermore, the main control module 14 also judges the timing of supplying oxygen to the user according to the breathing characteristic data, and supplies oxygen to the user when the user is in an inhalation state, so that the intelligent oxygen supply device 1 can supply oxygen to the user while avoiding waste.

[0071] As an example, the intelligent oxygen supply device 1 monitors the user's respiratory rate f through the respiratory monitoring module 17. When the respiratory rate is higher than a predetermined value, it indicates that the user is short of breath and needs to supplement oxygen. At this time, the main control module 14 controls the air compressor 12 and the oxygen production module 11 to operate separately. When the air compressor 12 is running, it presses air into the oxygen production module 11, and the oxygen production module 11 operates to produce oxygen in preparation for supplying oxygen to the user. During the user's inhalation process, the main control module 14 controls the switch valve 16 to open so that the oxygen generated by the oxygen production module 11 can enter the oxygen supply nozzle 15 through the oxygen supply pipe 4, and then be inhaled by the user. When the respiratory rate f is less than a predetermined value, it indicates that the user's breathing has recovered slowly and no oxygen supplement is needed. At this time, the main control module 14 controls the air compressor 12 and the oxygen production module 11 to stop running to stop oxygen production, and at the same time controls the switch valve 16 to close again, thereby improving the economy of the intelligent oxygen supply device 1.

[0072] The power supply module 13 is electrically connected to the respiratory monitoring module 17 and the main control module 14 respectively, so as to be able to drive the respiratory monitoring module 17 and the main control module 14 to operate.

[0073] Reference Figure 3 The main working principle of the intelligent oxygen supply device 1 is roughly described as follows: First, the respiratory characteristic data of the respiratory monitoring module 17 is transmitted to the main control module 14 in real time. The main control module 14 can organize, filter, calculate and compare the respiratory characteristic data to determine whether the user is short of breath, that is, in an oxygen demand state, as one of the basis for determining whether to supply oxygen to the user.

[0074] When the main control module 14 determines that the user has shortness of breath and needs oxygen supply according to the breathing characteristic data of the user, the main control module 14 controls the oxygen production module 11 and the air compressor 12 to operate, and controls the switch valve 16 to open, so as to supply oxygen to the oxygen supply nozzle 15. When the main control module 14 determines that the user has slow breathing according to the breathing characteristic data of the user, the oxygen production module 11 and the air compressor 12 are controlled to stop operating, and controls the switch valve 16 to close, so as to stop supplying oxygen to the oxygen supply nozzle 15.

[0075] In addition, the main control module 14 also needs to determine whether the user is in an inhalation state based on the breathing characteristic data. When the user is in the above-mentioned oxygen-demanding state and in an inhalation state, the main control module 14 controls the switch valve 16 to open to supply oxygen to the user.

[0076] The present disclosure controls the switch valve 16 and the oxygen production module 11 to operate independently through the main control module 14, so as to provide oxygen to the user in a timely manner according to the user's physical condition, thereby improving the convenience of use of the intelligent oxygen supply device 1.

[0077] In order to further improve the ease of use of the intelligent oxygen supply system, the respiratory monitoring module 17 and the main control module 14 are wirelessly connected. This arrangement reduces the line restrictions between the respiratory monitoring module 17 and the main control module 14 and improves the ease of use of the intelligent oxygen supply device 1.

[0078] Specifically, continue to refer to Figure 2 The multiple storage bins 23 on the wearable device 2 are arranged in two rows, the oxygen production module 11 and the air compressor 12 are arranged in the storage bins 23 in the upper row. Since the power module 13 and the main control module 14 are relatively small in size, they can be arranged in the storage bins 23 in the lower row. However, this is not limited to the above. In addition, the positions of the various components in the intelligent oxygen supply device 1 can also be adjusted according to actual needs. As an example, the storage bins 23 are arranged in four rows, and the four storage bins 23 are evenly arranged to improve the aesthetics of the wearable device 2.

[0079] As an example, the main control module 14 , the oxygen production module 11 , the air compressor 12 and the power supply module 13 are respectively arranged in different containing compartments 23 .

[0080] Reference Figure 4 The present disclosure provides an intelligent oxygen supply method, which is applicable to the above-mentioned intelligent oxygen supply device, and the intelligent oxygen supply method comprises the following steps:

[0081] First, step S1: the user's breathing characteristic data can be obtained first, and the breathing characteristic data can be used as a data basis for determining whether the user needs oxygen supply. For example, but not limited to, the breathing characteristic data can be obtained using the above-mentioned breathing monitoring module 17, but not limited to this.

[0082] Then, step S2: calculate the ratio k and process the above-mentioned respiratory characteristic data. The data processing step includes obtaining the difference between the respiratory characteristic data at the first moment and the respiratory characteristic data at the second moment, wherein the second moment is any moment before the first moment.

[0083] In the data processing step, the above-mentioned respiratory characteristic data includes the respiratory frequency f. The respiratory frequency f in the time period from the second moment to the first moment can be obtained, and then the adaptive time window b in the corresponding time period is calculated according to the respiratory frequency f. The adaptive time window b satisfies b=60 / f.

[0084] Furthermore, in the data processing step, based on the difference and the adaptive time window b, a ratio k between the difference and the adaptive time window b is calculated.

[0085]

[0086] Finally, step S3: determine whether to supply oxygen to the user, that is, determine the timing of supplying oxygen to the user. Specifically, determine whether oxygen needs to be supplied to the user based on the above ratio k and the respiratory frequency f, and determine whether the above ratio k is greater than zero. When the ratio k is greater than zero and the respiratory frequency f is greater than a predetermined value, supply oxygen to the user, for example but not limited to, the control switch valve can be opened to supply oxygen to the user.

[0087] It is understandable that the respiratory rate f can be used to determine whether the user is breathing rapidly. When the user is breathing rapidly, for example, when the respiratory rate f obtained by the respiratory monitoring module 17 is greater than the above-mentioned predetermined value, it indicates that the user is breathing rapidly and is in an oxygen-deficient state. At this time, oxygen production can be started to prepare for supplying oxygen to the user. As an example, when the user is breathing rapidly, the main control module 14 can control the oxygen production module 11 and the air compressor 12 to start at the same time to start oxygen production, but it is not limited thereto.

[0088] When the difference between the breathing characteristic data at the first moment and the breathing characteristic data at the second moment is calculated, indicating that the user is in an inhalation state, oxygen can be supplied to the user. For example but not limited to, at this time, the main control module 14 can open the switch valve 16 to make the oxygen supply pipe 4 conductive, and the oxygen in the oxygen production module 11 can be inhaled by the user through the oxygen supply pipe 4 and the oxygen supply nozzle 15.

[0089] In this embodiment, the length of the elastic band can be monitored by a length monitoring sensor. When the length monitoring sensor detects that the length of the elastic band gradually increases during the period from the second moment to the first moment, it indicates that the user is in an inhalation state during this period. At this time, the main control module 14 can open the switch valve 16 to supply oxygen to the user, but is not limited to this.

[0090] It is understandable that as the user's body recovers, the respiratory rate f tends to be stable. When the respiratory rate f is less than a predetermined value, it indicates that the user's breathing has returned to normal and oxygen supply is not needed. At this time, the oxygen supply can be stopped. As an example, at this time, the control module 14 can control the oxygen production module 11, the air compressor 12 and the main control module 14 to be turned off to avoid oxygen waste.

[0091] In the steps of the above-mentioned intelligent oxygen supply method, the respiratory frequency f in the time period from the second moment to the first moment may be the average respiratory frequency in the time period, but is not limited thereto.

[0092] As an example, the calculation of the average respiratory frequency f, the calculation of the adaptive time window b and the calculation of the ratio k can all be obtained by the main control module 14, but is not limited thereto.

[0093] The working principle of the breathing monitoring module 17 is roughly described as follows: the initial length of the elastic band can be L1, at which time it can be considered that the elastic band has not been stretched. The length of the elastic band is monitored in real time by a length measurement sensor, so as to determine whether the user is in an inhalation state or an exhalation state during a predetermined period of time by whether the elastic band is gradually stretched or gradually contracted within a predetermined period of time.

[0094] When the elastic band is wrapped around the chest or abdomen of the user, the elastic band will be stretched. Generally, the elastic band gradually becomes longer within a predetermined time period, and it can be considered that during this period, the elastic band is gradually stretched due to the user inhaling during this period, thereby determining that the user is in an inhalation state during this period.

[0095] For detailed description, this embodiment is described by taking an elastic band wrapped around the chest of a user as an example, and the length of the elastic band is monitored in real time.

[0096] As an example, the length measurement sensor monitors that the length of the elastic band at a first moment is L2, and at a second moment before the first moment, the length of the elastic band is L3, and at a third moment after the first moment, the length of the elastic band is L4, satisfying L2>L3, and L2>L4. At this time, it can be considered that during the period from the second moment to the first moment, the length of the elastic band gradually extends, and the user is in an inhaling state; during the period from the first moment to the third moment, the length of the elastic band gradually shortens, and the user is in an exhaling state.

[0097] It should be noted that the elastic band is in a stretched state when wrapped around the user's body. This arrangement ensures that the length of the elastic band monitored at any time is greater than the initial length, that is, L2>L3>L1, and L2>L4>L1.

[0098] As an example, in this embodiment, the breathing monitoring module monitors that the length of the elastic band at the first moment is L2, and the elongation of the elastic member at the first moment can be calculated as p(1)=L2-L1;

[0099] The breathing monitoring module detects that the length of the elastic band at the second moment is L3, and the elongation of the elastic member at the second moment can be calculated as p(2)=L3-L1;

[0100] Based on the length monitoring data of the elastic band, the elongation change of the elastic member from the second moment to the first moment is calculated as: p(1)-p(2)=(L2-L1)-(L3-L1)=L2-L3; when the difference between p(1)-p(2) is greater than 0, it indicates that the elastic band is gradually elongating from the second moment to the first moment, so it is considered that the user is in an inhalation state during this period; when the difference between p(1)-p(2) is less than 0, it indicates that the elastic band is gradually shrinking from the second moment to the first moment, so it is considered that the user is in an exhalation state during this period.

[0101] During the period from the second moment to the first moment, the user's breathing frequency f can be monitored. Using the formula b=60 / f, the adaptive time window b can be calculated based on the breathing frequency f, n=b*the sampling frequency of the breathing characteristic data.

[0102] Finally, the ratio k is calculated based on the elongation change of the elastic member during the period from the second moment to the first moment and the adaptive time window b, and in combination with formula (1). When the ratio k>0, it indicates that the length of the elastic band at the first moment is greater than the length of the elastic band at the second moment, that is, the user is in the inhalation state during the period from the second moment to the first moment. When the ratio k<0, it indicates that the length of the elastic band at the first moment is less than the length of the elastic band at the second moment, that is, the user is in the exhalation state during the period from the first moment to the third moment.

[0103] Specifically, the main control module 14 can receive the respiratory characteristic data of the respiratory monitoring module 17 and use it to calculate the ratio k, and the main control module 14 can determine whether the ratio k is greater than zero. When the ratio k is greater than zero and the respiratory frequency f is greater than a predetermined value, the main control module 14 can control the switch valve 16 to open so as to supply oxygen to the user.

[0104] During the use of the intelligent oxygen supply device, the length measurement sensor can transmit the monitored respiratory characteristic data to the main control module 14, and the main control module 14 can calculate the difference in the respiratory characteristic data from the second moment to the first moment, and calculate the ratio k of the difference to the adaptive time window in the corresponding time period from the second moment to the first moment.

[0105] Reference Figure 5 Further, the intelligent oxygen supply method further includes step S4: before the step of calculating the ratio k, filtering the respiratory characteristic data to make the curve formed by the respiratory characteristic data smoother, reduce the accidental error of the monitoring data, and thus improve the accuracy of the intelligent oxygen supply method. As an example, the filtering step can be performed in the main control module 14, but is not limited thereto.

[0106] As an example, the step of filtering the respiratory characteristic data includes: using a wavelet filtering method, a Gaussian filtering method, or a Kalman filtering method to perform filtering, but is not limited thereto.

[0107] Reference Figure 6 In order to improve the utilization rate of oxygen, the intelligent oxygen supply method further includes step S5: in response to the respiratory frequency f, controlling the oxygen supply, for example but not limited to controlling the opening of the switch valve 16 to control the oxygen supply. As an example, the oxygen supply can be controlled as follows: when the respiratory frequency f satisfies 15≤f≤18, a first oxygen supply is provided to the user; when the respiratory frequency f satisfies 18<f≤21, a second oxygen supply is provided to the user, and the second oxygen supply is greater than the first oxygen supply; when the respiratory frequency f satisfies 21<f≤24, a third oxygen supply is provided to the user, but not limited thereto.

[0108] Normally, the normal person's breathing frequency f satisfies 12≤f<15, but is not limited to this. When the user's breathing frequency f<15, the intelligent oxygen supply device can determine that the user's breathing is normal at this time and does not need oxygen supply. When the user's breathing frequency f≥15, the intelligent oxygen supply device can determine that the user is breathing rapidly at this time and needs to supply oxygen to the user. When the breathing frequency f satisfies 15≤f≤18, the intelligent oxygen supply device can provide the user with a first oxygen supply. When the breathing frequency f satisfies 18<f≤21, the intelligent oxygen supply device can provide the user with a second oxygen supply, which is greater than the first oxygen supply. When the breathing frequency f satisfies 21<f≤24, a third oxygen supply is provided to the user, which is greater than the second oxygen supply.

[0109] As an example, the switch valve 16 has a first opening, a second opening, and a third opening. When the switch valve 16 is at the first opening, the intelligent oxygen supply device 1 can provide a first oxygen supply. When the switch valve 16 is at the second opening, the intelligent oxygen supply device 1 can provide a second oxygen supply. When the switch valve 16 is at the third opening, the intelligent oxygen supply device 1 can provide a third oxygen supply, but is not limited thereto.

[0110] The intelligent oxygen supply method provided in the present embodiment can determine the user's oxygen demand according to the user's breathing frequency f. When the user's breathing frequency f is high, it is determined that the user's oxygen demand is large. In response to the oxygen demand at this time, the intelligent oxygen supply method provided in the present embodiment can provide the user with a corresponding amount of oxygen supply. In this way, the intelligent oxygen supply method provided in the present disclosure can intelligently provide the user with an appropriate amount of oxygen, thereby avoiding oxygen waste while meeting the user's needs.

[0111] As an example, the respiratory characteristic data includes tidal volume, respiratory rate, minute ventilation, minute alveolar ventilation, timed vital capacity, or functional residual capacity monitored by the respiratory monitoring module.

[0112] In order to improve the ease of use of the intelligent oxygen supply device, the intelligent oxygen supply device can obtain the user's real-time breathing characteristic data, and can determine whether to supply oxygen to the user based on the user's breathing characteristic data, thereby avoiding oxygen waste while supplying oxygen to the user in a timely manner.

[0113] Normally, after monitoring the user's breathing characteristic data, the breathing monitoring module transmits it to the main control module 14 to filter the breathing characteristic data so that the breathing characteristic data forms a smooth arc in chronological order; the main control module 14 then calculates the filtered breathing characteristic data, and after calculating the ratio k, determines whether the ratio k is greater than 0, so as to determine whether the user is in an inhalation state or an exhalation state. When k is greater than 0, the user is in an inhalation state, and oxygen can be provided to the user at this time, avoiding oxygen waste and lung discomfort caused by supplying oxygen to the user when the user is in an exhalation state.

[0114] In the description of the present disclosure, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0115] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0116] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0117] The features, structures or characteristics described in the present disclosure may be combined in one or more embodiments in any suitable manner. In the above description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be adopted. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring the various aspects of the present disclosure.

Claims

1. An intelligent oxygen supply method, characterized in that: The intelligent oxygen supply method comprises the following steps: S1: Obtain user's breathing characteristic data; S2: Calculate a ratio k, obtain a difference between the respiratory characteristic data at a first moment and the respiratory characteristic data at a second moment, and calculate a ratio k of the difference to an adaptive time window in a time period corresponding to the second moment to the first moment, wherein the second moment is before the first moment, the respiratory characteristic data includes a respiratory frequency f, and the adaptive time window b=60 / f; S3: Determine whether to supply oxygen to the user, and determine whether the above ratio k is greater than zero. When the above ratio k is greater than zero and the breathing frequency f is greater than a predetermined value, supply oxygen to the user.

2. The intelligent oxygen supply method according to claim 1, characterized in that: The intelligent oxygen supply method further includes step S4: before the step of calculating the ratio k, filtering the breathing characteristic data.

3. The intelligent oxygen supply method according to claim 2, characterized in that: The step of filtering the respiratory characteristic data includes: using a wavelet filtering method, a Gaussian filtering method, or a Kalman filtering method for filtering.

4. The intelligent oxygen supply method according to claim 1, characterized in that: The intelligent oxygen supply method further comprises step S5: controlling the oxygen supply amount in response to the respiratory frequency f, When the respiratory frequency f satisfies 15≤f≤18, providing a first oxygen supply amount to the user; When the respiratory frequency f satisfies 18<f≤21, providing a second oxygen supply to the user, wherein the second oxygen supply is greater than the first oxygen supply; When the respiratory frequency f satisfies 21<f≤24, a third oxygen supply is provided to the user, and the third oxygen supply is greater than the second oxygen supply.

5. The intelligent oxygen supply method according to claim 1, characterized in that: The respiratory characteristic data include tidal volume, respiratory rate, minute ventilation, minute alveolar ventilation, or functional residual capacity.

6. The intelligent oxygen supply method according to claim 1, characterized in that: The ratio k of the difference between the respiratory characteristic data p(i) at the first moment and the respiratory characteristic data p(in) at the second moment and the adaptive time window satisfies the formula: Wherein, b is the adaptive time window, p is the respiratory characteristic data, i is a specific moment, in is a moment before i, and n=b*the sampling frequency of the respiratory characteristic data.

7. An intelligent oxygen supply device, characterized in that: The intelligent oxygen supply method according to any one of claims 1 to 6 is applicable to the intelligent oxygen supply device, wherein the intelligent oxygen supply device comprises an oxygen production module (11), an oxygen supply nozzle (15), a switch valve (16), a respiratory monitoring module (17) and a main control module (14), wherein the oxygen supply nozzle (15) is used to be inserted into the nasal cavity or oral cavity of a user, the oxygen supply nozzle (15) is connected to the exhaust port of the oxygen production module (11) through an oxygen supply pipe (4), the switch valve (16) is arranged on the oxygen supply pipe (4) to control the conduction of the oxygen supply pipe (4), the respiratory monitoring module (17) is used to monitor the respiratory characteristic data of the user, and the main control module (14) is used to receive the respiratory characteristic data, process the respiratory characteristic data, and determine whether to supply oxygen to the user.

8. The intelligent oxygen supply device according to claim 7, characterized in that: The respiratory monitoring module (17) comprises an elastic band and a length measuring sensor, wherein the elastic band is used to be wrapped around the chest or abdomen of a user, and the length measuring sensor is used to monitor the elongation of the elastic band and transmit the monitoring data to the main control module (14).

9. The intelligent oxygen supply device according to claim 7, characterized in that: The intelligent oxygen supply device further comprises an air compressor (12), wherein the air compressor (12) is connected to an air inlet of the oxygen production module (11) via an air inlet pipe (3), and when the air compressor (12) is started, air can be pressed into the oxygen production module (11); and / or, The main control module (14) can filter the respiratory characteristic data, or perform difference calculation, or the main control module (14) can control the oxygen production module (11) to operate to produce oxygen, or control the switch valve (16) to open to supply oxygen to the user; and / or, The switch valve (16) has multiple opening degrees, and when the user needs oxygen supply, the switch valve (16) can be adjusted to a predetermined opening degree corresponding to the oxygen supply amount.

10. An intelligent oxygen supply system, characterized in that: The intelligent oxygen supply system comprises a wearable device (2) and an intelligent oxygen supply device as described in any one of claims 7 to 9, wherein the wearable device (2) is provided with a containing chamber (23), and the intelligent oxygen supply device is placed in the containing chamber (23).

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