Breath detection method, control method of pulse oxygen generator and pulse oxygen generator

Abstract

The present application relates to oxygen generator technical field, disclose a kind of breath detection method, the control method of pulse oxygen generator and pulse oxygen generator, to solve the accuracy of the breath detection and oxygen supply opportunity of existing oxygen generator is not high, scheme mainly includes: real-time detection the gas pressure in the gas delivery channel of the pulse oxygen generator;According to the gas pressure determines the gas pressure variation in continuous multiple preset time;According to the change trend of the gas pressure variation determines the breathing state of user;When determining that user is in the state of inhalation, control the pulse oxygen generator to pulse oxygen supply.The present application can realize accurate detection to user breathing, and then improve the accuracy of user breath detection and oxygen supply opportunity, applicable to pulse oxygen generator.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oxygen generator, in particular to a breathing detection method, a control method of pulse type oxygen generator and the pulse type oxygen generator. BACKGROUND

[0002] The basic principle of oxygen generator is to separate nitrogen and oxygen in air by using the adsorption performance of molecular sieve and physical principle, and to obtain high concentration oxygen by using large displacement oil-free compressor as power. Oxygen generator is suitable for oxygen therapy and oxygen health care of various people, and has the characteristics of rapid oxygen production, high oxygen concentration, stable oxygen production capacity, low running power, small size, easy to use and the like. The pulse type oxygen generator is based on the traditional oxygen generator, and the pressure sensor is added to detect the inhalation and exhalation of the user, and the intermittent oxygen supply is realized according to the breathing frequency of the user, so as to save oxygen and improve the utilization rate of oxygen, and has the same oxygen supply effect. The oxygen consumption of intermittent oxygen supply is only 1 / 6 of that of continuous oxygen supply, which greatly reduces the volume, weight and energy consumption of the oxygen generator.

[0003] In the prior art, the oxygen supply process of the pulse type oxygen generator is roughly as follows: the gas pressure in the gas conveying channel is detected by the pressure sensor, when the user inhales, the gas pressure detected by the pressure sensor is negative, when the user exhales, the gas pressure detected by the pressure sensor is positive, by comparing the size of the gas pressure and the set threshold value, if the gas pressure is less than the set threshold value, it is determined that the user is in the inhalation state, at this time, the oxygen generator is controlled to supply oxygen in pulse mode, if the gas pressure is not detected to be less than the set threshold value for a certain time, an alarm is generated, and the oxygen generator is automatically turned off after a certain time to save power.

[0004] However, the above scheme at least has the following problems: due to vibration, environmental change, improper operation of the user and the like, the pressure sensor may drift, so that the gas pressure detected by the pressure sensor cannot accurately reflect the breathing of the user, and further leads to inaccurate oxygen supply time. SUMMARY

[0005] The present application aims to solve the problem of low accuracy of breathing detection and oxygen supply time of the existing oxygen generator, and provides a breathing detection method, a control method of pulse type oxygen generator and the pulse type oxygen generator.

[0006] The technical scheme adopted by the present application to solve the above technical problems is:

[0007] In a first aspect, a breathing detection method is provided, applied to a pulse type oxygen generator, comprising the following steps:

[0008] Real-time detection of the gas pressure in the gas conveying channel of the pulse type oxygen generator;

[0009] determining a gas pressure change amount within a plurality of preset times according to the gas pressure;

[0010] judging a breathing state of the user according to a change trend of the gas pressure change amount.

[0011] Further, judging the breathing state of the user according to the change trend of the gas pressure change amount, specifically comprising:

[0012] if the gas pressure change amount continuously increases within a first preset number of times, determining that the user is in an inhaling state;

[0013] if the gas pressure change amount continuously decreases within the first preset number of times, determining that the user is in an exhaling state;

[0014] if the gas pressure change amount is within a preset range within the first preset number of times, determining that the user is in a breathing pause state.

[0015] In a second aspect, a control method of a pulse oxygen generator is provided, comprising the following steps:

[0016] real-time detecting a gas pressure in a gas delivery channel of the pulse oxygen generator;

[0017] determining a gas pressure change amount within a plurality of preset times according to the gas pressure;

[0018] judging a breathing state of the user according to a change trend of the gas pressure change amount, and controlling the pulse oxygen generator to perform pulse oxygen supply when determining that the user is in an inhaling state.

[0019] Further, judging the breathing state of the user according to the change trend of the gas pressure change amount, specifically comprising:

[0020] if the gas pressure change amount continuously increases within a first preset number of times, determining that the user is in an inhaling state;

[0021] if the gas pressure change amount continuously decreases within the first preset number of times, determining that the user is in an exhaling state;

[0022] if the gas pressure change amount is within a preset range within the first preset number of times, determining that the user is in a breathing pause state.

[0023] Further, the method further comprises:

[0024] determining an inhaling period of the user according to the gas pressure change amount, and determining an auxiliary oxygen supply monitoring time according to the inhaling period;

[0025] When the time length between the last oxygen supply end time and the current time reaches the auxiliary oxygen supply monitoring time, it is determined whether there is a gas pressure change amount with an absolute value greater than the first threshold value within the current auxiliary oxygen supply monitoring time, and if not, the pulse oxygen generator is controlled to perform auxiliary oxygen supply once.

[0026] Further, the inhalation period of the user is determined according to the gas pressure change amount, specifically including:

[0027] The time at which the minimum gas pressure change amount occurs is recorded at least three times in succession, and the inhalation period of the user is determined according to the time at which the minimum gas pressure change amount occurs.

[0028] Further, the auxiliary oxygen supply once includes:

[0029] Pulse oxygen supply is performed for a continuous second preset number of times according to the corresponding oxygen supply interval and pulse frequency.

[0030] Further, the method further includes:

[0031] The number of auxiliary oxygen supplies is counted, the number of auxiliary oxygen supplies is incremented by one after one auxiliary oxygen supply is performed, and the number of auxiliary oxygen supplies is cleared to zero when the gas pressure change amount is less than the first threshold value.

[0032] The oxygen supply interval and pulse frequency of the next auxiliary oxygen supply are adjusted according to the current number of auxiliary oxygen supplies, specifically including: the greater the number of auxiliary oxygen supplies, the shorter the oxygen supply interval of the next auxiliary oxygen supply, and the higher the pulse frequency of the next auxiliary oxygen supply.

[0033] Further, the method further includes:

[0034] If the number of auxiliary oxygen supplies is greater than a second threshold value, a secondary alarm is started, and when the duration of the secondary alarm is greater than a third threshold value, a primary alarm is started and the pulse oxygen generator is controlled to stop oxygen supply.

[0035] In a third aspect, a pulse oxygen generator is provided, including:

[0036] A pressure sensor is configured to detect the gas pressure in the gas delivery channel of the pulse oxygen generator in real time.

[0037] A controller is configured to determine the gas pressure change amount in a plurality of preset times according to the gas pressure, determine the breathing state of the user according to the change trend of the gas pressure change amount, and control the pulse oxygen generator to perform pulse oxygen supply when it is determined that the user is in an inhalation state.

[0038] The beneficial effects of the present invention are as follows: the breathing detection method, the control method of the pulse oxygen concentrator, and the pulse oxygen concentrator described in the present invention detect the user's breathing state through the changing trend of the air pressure change. Even if the pressure sensor drifts, the user's breathing can be accurately detected, thereby improving the accuracy of the user's breathing detection and oxygen supply timing. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of the user's pressure curve during a breathing cycle;

[0040] Figure 2 Schematic diagram of the principle of breathing detection in the prior art;

[0041] Figure 3 Schematic diagram of the pressure curve and corresponding slope curve when the pressure sensor drifts;

[0042] Figure 4 Schematic diagram of the flow of the breathing detection method according to an embodiment of the present invention;

[0043] Figure 5 This is a schematic diagram of a slope curve corresponding to a pressure curve of a user in a breathing cycle according to an embodiment of the present invention;

[0044] Figure 6 Schematic diagram of a flow chart of a control method for a pulse oxygen concentrator according to an embodiment of the present invention;

[0045] Figure 7 Schematic diagram of slope curves corresponding to different breathing intensities according to an embodiment of the present invention;

[0046] Figure 8 This is a schematic diagram of the auxiliary oxygen supply process according to an embodiment of the present invention. DETAILED DESCRIPTION

[0047] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0048] like Figure 1 As shown in the figure, during each breathing cycle of the user, the pressure value in the gas delivery channel of the pulse oxygen concentrator changes with the user's breathing state: when the user inhales gas, the pressure value detected by the pressure sensor is negative; when the user exhales gas, the pressure detected by the pressure sensor is positive; when the user is in respiratory arrest, the pressure detected by the pressure sensor is approximately zero.

[0049] When the pressure sensor drifts, all pressure values ​​detected by the pressure sensor are greater than or less than the actual pressure. At this time, the gas pressure detected by the pressure sensor cannot accurately reflect the user's breathing, which leads to inaccurate oxygen supply timing. Figure 2As shown, waveform A will not be lower than the threshold value, and oxygen will not be continuously output; waveform C will be continuously lower than the threshold value, and oxygen will be continuously output; the function of pulse oxygen supply is lost, and only waveform B without drift works normally.

[0050] To solve the above problems, the present application provides a breathing detection method, a control method of a pulse oxygen generator and the pulse oxygen generator, and the main technical scheme comprises: detecting the gas pressure in the gas delivery channel of the pulse oxygen generator in real time through a pressure sensor; determining the gas pressure variation in a plurality of preset periods in succession through a controller according to the gas pressure, and judging the breathing state of the user according to the change trend of the gas pressure variation, and controlling the pulse oxygen generator to supply oxygen when it is determined that the user is in the inhalation state.

[0051] It can be understood that, after the pressure sensor drifts, the gas pressure variation between the two time points is the same, for example, Figure 3 As shown, the slope of the pressure curve is obtained, and the gas pressure variation in each unit time is obtained, whether it is waveform A that drifts upward or waveform C that drifts downward, the corresponding slope curve k is the same as the slope curve corresponding to waveform B without drift. And when the user is in the inhalation state, the corresponding slope gradually increases, and when the user is in the exhalation state, the corresponding slope gradually decreases. Based on this, the present application dynamically tracks the gas pressure variation, and judges the breathing state of the user through the change trend of the gas pressure variation between the two time points, and supplies oxygen when it is determined that the user is in the inhalation state, thereby avoiding the problem that the accuracy of user breathing detection and oxygen supply time is not high due to the drift of the pressure sensor. At the same time, the present application compares the continuous plurality of gas pressure variations detected in real time through the dynamic tracking mode, compared with the static tracking mode of the fixed threshold value, can avoid the problem of inaccurate judgment caused by individual differences, and thereby improves the accuracy of breathing detection.

[0052] Embodiments

[0053] The oxygen generator described in the embodiments of the present application is a pulse oxygen generator, and at least comprises a pressure sensor and a controller, wherein the pressure sensor is arranged in the gas delivery channel, for example, in the gas delivery pipe or the gas delivery mask, and the pressure sensor is connected with the controller, and the controller can open or close the gas delivery channel of the oxygen generator to realize intermittent oxygen supply of the pulse oxygen generator.

[0054] The breathing detection method described in the embodiments is applied to the pulse oxygen generator described above, as shown in Figure 4 The breathing detection method described in the embodiments is applied to the pulse oxygen generator described above, as shown in

[0055] Step 1, detecting the gas pressure in the gas delivery channel of the pulse oxygen generator in real time.

[0056] Specifically, the gas pressure of the oxygen concentrator gas pipe or gas mask can be detected in real time through a pressure sensor. The gas pressure detected by the pressure sensor may be the gas pressure after the pressure sensor has drifted, which cannot accurately reflect the user's breathing status.

[0057] Step 2: Determine the gas pressure change within a plurality of consecutive preset time periods according to the gas pressure.

[0058] The air pressure variation is used to reflect the degree of air pressure change. Within each preset time period, if the gas pressure increases, the corresponding air pressure variation is positive, and if the gas pressure decreases, the corresponding air pressure variation is negative. In this embodiment, the air pressure variation is dynamically tracked by extending the time axis at equal preset time intervals and determining the air pressure variation within each preset time period. The preset time period can be set according to actual conditions and is not limited in this embodiment. For example, the preset time period can be 10ms. In addition, the air pressure variation within the preset time period can also be the air pressure variation per unit time, that is, the slope of each point in the pressure curve.

[0059] Step 3: Determine the user's breathing state based on the changing trend of the air pressure change.

[0060] like Figure 5 As shown, when the user is in the inhalation state, the corresponding slope gradually increases; when the user is in the exhalation state, the corresponding slope gradually decreases; when the user is in a breathing pause, the corresponding slope is approximately zero. Based on this, this embodiment determines the user's breathing state through the following method:

[0061] If the air pressure change continuously increases within a first preset number of times, it is determined that the user is in an inhalation state; if the air pressure change continuously decreases within the first preset number of times, it is determined that the user is in an exhalation state; if the air pressure change is within a preset range within the first preset number of times, it is determined that the user is in a respiratory pause state.

[0062] In practical applications, since the real-time gas pressure measurement fluctuates, the user's breathing state can be determined based on the trend of the pressure variations obtained over multiple consecutive times, thereby improving the accuracy of breathing detection. Specifically, when the pressure variations obtained over multiple times continuously increase, it indicates that the user is inhaling; when the pressure variations obtained over multiple times continuously decrease, it indicates that the user is exhaling; and when the pressure variations obtained over multiple times continuously remain within a preset range, it indicates that the user is in a state of respiratory arrest.

[0063] It can be understood that, under the premise of the same preset time, the greater the first preset number of times, the higher the accuracy of the breath detection, but the delay of oxygen supply in the inhalation state is also higher. In order to balance the accuracy of breath detection and the delay of oxygen supply, the first preset number of times can be set according to the length of the preset time. For example, if the preset time is short, a larger first preset number of times can be set; if the preset time is long, a smaller first preset number of times can be set. In addition, the preset range is a reasonable error fluctuation range of zero, and the preset range can be set according to the actual situation, which is not limited in the embodiment.

[0064] The embodiment determines the breathing state of the user by the change trend of the change amount of the gas pressure. Since the change amount corresponding to the gas pressure does not change when the pressure sensor drifts, the embodiment can avoid the problem that the gas pressure cannot accurately reflect the breathing state due to the drift of the pressure sensor, thereby improving the accuracy of the breath detection.

[0065] Based on the above-mentioned breath detection method, the embodiment also provides a control method of a pulse oxygen generator, which includes the above-mentioned breath detection method, as shown in the following Figure 6 The method further includes:

[0066] Step 4: When it is determined that the user is in the inhalation state, the pulse oxygen generator is controlled to perform pulse oxygen supply.

[0067] It can be understood that, after the breathing state of the user is determined based on the above-mentioned breath detection method, if the user is in the inhalation state, the controller controls the oxygen generator to supply oxygen to the user. Since the oxygen tank has a certain pressure, if the gas supply channel is always opened at this time, the pressure will be released too quickly, and too much oxygen will be supplied, resulting in waste. Therefore, continuous pulse oxygen supply is performed at this time, and the related parameters of the pulse oxygen supply can be set according to the actual situation, which is not limited in the embodiment. The related parameters include: oxygen supply time, oxygen supply interval and pulse frequency, for example, the oxygen supply time is 60 ms each time, the interval time is 200 ms, and the oxygen supply pulse frequency is 5 Hz.

[0068] The embodiment also includes: when it is determined that the user is not in the inhalation state, the pulse oxygen generator is controlled to stop oxygen supply. Specifically, if the user is not in the inhalation state, the controller closes the gas supply channel of the oxygen generator to stop supplying oxygen to the user, so as to save oxygen and improve the utilization rate of oxygen. In addition, the control method of the pulse oxygen generator in the embodiment uses the above-mentioned breath detection method to detect the breath of the user, so as to improve the accuracy of the oxygen supply time of the oxygen generator.

[0069] Furthermore, to improve oxygen and electrical energy utilization, existing technologies automatically shut down the oxygen concentrator after a set alarm period if the inspiratory pressure falls below a set threshold. This approach also presents the following issues: For users experiencing physical discomfort or illness, resulting in weak breathing, or those experiencing sleep apnea, the inspiratory pressure may not reach the oxygen concentrator's set threshold, even though oxygen is more needed, and the concentrator may stop supplying oxygen, further deteriorating the user's health.

[0070] In order to solve the above problem, this embodiment further includes:

[0071] The user's inhalation cycle is determined according to the air pressure change, and the auxiliary oxygen supply monitoring time is determined according to the inhalation cycle; when the time between the last oxygen supply end time and the current time reaches the auxiliary oxygen supply monitoring time, it is determined whether there is an air pressure change with an absolute value greater than a first threshold within the current auxiliary oxygen supply monitoring time. If not, the pulse oxygen concentrator is controlled to perform auxiliary oxygen supply once.

[0072] It is understandable that the magnitude of the air pressure change is correlated with the strength of breathing, such as Figure 7 As shown, when the user is inhaling, the stronger the breathing, the larger the absolute value of the corresponding slope K2; the weaker the breathing, the smaller the absolute value of the corresponding slope K1. Based on this, this embodiment can determine the intensity of the user's breathing by the absolute value of the air pressure change. Specifically, during the supplemental oxygen supply monitoring time, if there is an air pressure change with an absolute value greater than the first threshold, it indicates that the user is breathing normally, and normal pulse oxygen supply is performed; otherwise, the pulse oxygen concentrator is controlled to perform supplemental oxygen supply to prevent further deterioration of the user's health.

[0073] In this embodiment, determining the user's inhalation cycle based on the air pressure change specifically includes: recording the time when the minimum air pressure change occurs at least three times in a row, and determining the user's inhalation cycle based on the time when the minimum air pressure change occurs.

[0074] like Figure 5 As shown, during the user's breathing cycle, when the user starts to inhale and ends to exhale, the corresponding slope has a minimum value K1. Based on this, this embodiment records the time when the minimum air pressure change occurs at least three times in a row, takes the time difference between the first and third occurrences of the minimum air pressure change as the user's inhalation cycle, and determines the auxiliary oxygen supply monitoring time based on the user's inhalation cycle. The auxiliary oxygen supply monitoring time is used to represent the judgment cycle, that is, when the time between the last oxygen supply end time and the current time reaches the auxiliary oxygen supply monitoring time, a judgment of the air pressure change is performed; within a judgment cycle, if there is no air pressure change with an absolute value greater than the first threshold, it means that the user's breathing is weak, and the oxygen concentrator is controlled to perform auxiliary oxygen supply.

[0075] In this embodiment, one-time auxiliary oxygen supply includes: according to the corresponding oxygen supply interval and pulse frequency, continuous second preset number of pulse oxygen supply. Wherein, the second preset number can be set according to actual situation, this embodiment does not make limitation, for example, three times.

[0076] In order to avoid hypoxia of the user when breathing is weak, as shown in the embodiment, the method further comprises: Figure 8

[0077] The number of auxiliary oxygen supply is counted, and the number of auxiliary oxygen supply is increased by one after one-time auxiliary oxygen supply is performed. When the air pressure change amount is less than the first threshold value, the number of auxiliary oxygen supply is cleared.

[0078] The oxygen supply interval and pulse frequency of the next auxiliary oxygen supply are adjusted according to the current number of auxiliary oxygen supply, specifically: the greater the number of auxiliary oxygen supply, the shorter the oxygen supply interval of the next auxiliary oxygen supply, and the higher the pulse frequency of the next auxiliary oxygen supply.

[0079] Specifically, the embodiment detects the breathing strength of the user in each auxiliary oxygen supply monitoring time in turn. In the corresponding auxiliary oxygen supply monitoring time, if it is detected that the user's breathing is weak, one-time auxiliary oxygen supply is performed, and the number of auxiliary oxygen supply is increased by one; if it is detected that the user's breathing is normal, the number of auxiliary oxygen supply is cleared. When auxiliary oxygen supply is performed, the oxygen supply parameters are determined according to the current number of auxiliary oxygen supply, and auxiliary oxygen supply is performed according to the determined oxygen supply parameters. Specifically, the greater the number of auxiliary oxygen supply, the shorter the oxygen supply interval of auxiliary oxygen supply, and the higher the pulse frequency. For example, the oxygen supply interval of the first auxiliary oxygen supply is 3 seconds, and the pulse frequency is 0.3Hz; the oxygen supply interval of the second auxiliary oxygen supply is 2.7 seconds, and the pulse frequency is 0.6Hz; the oxygen supply interval of the tenth auxiliary oxygen supply is 1 second, and the pulse frequency is 1Hz. According to the number of auxiliary oxygen supply, the oxygen supply interval is shortened and the pulse frequency is increased, which can help the user recover the ability of independent inhalation.

[0080] In this embodiment, when the number of auxiliary oxygen supply is greater than the second threshold value, the secondary alarm is started; when the duration of the secondary alarm is greater than the third threshold value, the primary alarm is started and the pulse oxygen generator is controlled to stop oxygen supply.

[0081] ​Specifically, when the number of times of auxiliary oxygen supply is greater than the second threshold value, it indicates that the nasal oxygen tube is possibly blocked or fallen off, or the user is temporarily breathless, or temporarily leaves the oxygen generator, at this time, the secondary alarm is started, and the user is prompted to check the fault by screen display and warning light, and continues to inhale oxygen after the fault is eliminated. If the secondary alarm time lasts for more than a third threshold value, it indicates that the user's breathing has not recovered, and there is a disease or other condition, which may be dangerous, at this time, the oxygen supply is turned off, the power is saved, the primary alarm is started, including a large alarm sound prompt, so as to help the accompanying personnel. Among them, the second threshold value and the third threshold value can be set according to the actual situation, and the embodiment does not limit this, for example, the second threshold value is 10 times, and the third threshold value is 10 seconds.

[0082] In summary, the embodiment detects the breathing state of the user by the change trend of the air pressure change amount, even if the pressure sensor drifts, the user's breathing can be accurately detected, and the accuracy of user breathing detection and oxygen supply opportunity is improved, and the strength of the user's breathing is also judged according to the size of the air pressure change amount, and auxiliary oxygen supply is performed when the user's breathing is weak, and the oxygen supply parameters are adjusted according to the number of times of auxiliary oxygen supply, thereby avoiding the problem of hypoxia of the user when the user's breathing is weak.

Claims

1. A pulse-type oxygen generator characterized by comprising: The method comprises the following steps: a pressure sensor is used to detect the gas pressure in the gas delivery channel of the pulse oxygen generator in real time; a controller is used to determine the gas pressure variation in a plurality of preset time periods according to the gas pressure, determine the breathing state of the user according to the variation trend of the gas pressure variation, and control the pulse oxygen generator to perform pulse oxygen supply when it is determined that the user is in the inhalation state; determining the breathing state of the user according to the variation trend of the gas pressure variation, specifically comprising: if the gas pressure variation continuously increases in the first preset number of times, it is determined that the user is in the inhalation state; if the gas pressure variation continuously decreases in the first preset number of times, it is determined that the user is in the exhalation state; if the gas pressure variation is in the preset range in the first preset number of times, it is determined that the user is in the breathing pause state.

2. The pulse-type oxygen manufacturing machine according to claim 1, wherein The controller is further used to: determine the inhalation period of the user according to the gas pressure variation, and determine the auxiliary oxygen supply monitoring time according to the inhalation period; when the time length between the last oxygen supply end time and the current time reaches the auxiliary oxygen supply monitoring time, it is determined whether there is a gas pressure variation with an absolute value greater than the first threshold value in the current auxiliary oxygen supply monitoring time, and if not, the pulse oxygen generator is controlled to perform auxiliary oxygen supply.

3. The pulse-type oxygen manufacturing machine according to claim 2, wherein determining the inhalation period of the user according to the gas pressure variation, specifically comprising: record the time when the minimum gas pressure variation occurs at least three times in succession, and determine the inhalation period of the user according to the time when the minimum gas pressure variation occurs.

4. The pulse-type oxygen manufacturing machine according to claim 2, wherein The auxiliary oxygen supply once comprises: pulse oxygen supply for a continuous second preset number of times according to the corresponding oxygen supply interval and pulse frequency.

5. The pulse-type oxygen manufacturing machine according to claim 4, wherein The controller is further used to: count the number of auxiliary oxygen supply, increase the number of auxiliary oxygen supply by one after performing auxiliary oxygen supply once, and clear the number of auxiliary oxygen supply when the gas pressure variation is less than the first threshold value; adjust the oxygen supply interval and pulse frequency of the next auxiliary oxygen supply according to the current number of auxiliary oxygen supply, specifically comprising: the greater the number of auxiliary oxygen supply, the shorter the oxygen supply interval of the next auxiliary oxygen supply, and the higher the pulse frequency of the next auxiliary oxygen supply.

6. The pulse-type oxygen manufacturing machine according to claim 5, wherein The controller is further used to: if the number of auxiliary oxygen supply is greater than the second threshold value, start the secondary alarm, and when the duration of the secondary alarm is greater than the third threshold value, start the primary alarm and control the pulse oxygen generator to stop oxygen supply.

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