Oxygen production control method and oxygen production system

Abstract

The present application is about an oxygen production control method and an oxygen production system, and relates to the field of oxygen production technology. The oxygen production control method is applied to the oxygen production system, and the method includes: detecting the user's inhalation event and generating a detection signal corresponding to the inhalation event; determining the interval between the detection time corresponding to the latest detection signal and the current time, and generating a first control signal when the interval is greater than a first time threshold; according to the first control signal, reducing the latest oxygen production of the oxygen production system from the first oxygen production to the target oxygen production; wherein the first oxygen production is the oxygen production corresponding to the first gear currently set by the oxygen production system. It can avoid the problem that the oxygen production system continues to produce oxygen according to the currently set gear without detecting the user's inhalation event for a period of time, resulting in high power consumption of the oxygen production system. The present application can reduce the power consumption of the oxygen production system by reducing the latest oxygen production of the oxygen production system.

Description

Technical Field

[0001] The present application relates to the technical field of oxygen production, and in particular to an oxygen production control method and an oxygen production system. Background Art

[0002] Oxygen production systems can use the selective adsorption characteristics of molecular sieves, powered by compressors, to separate nitrogen from oxygen in the air, thereby producing high-concentration oxygen, such as household or medical oxygen concentrators, portable oxygen concentrators, etc.

[0003] In the related art, the oxygen production system can provide a certain amount of oxygen to the user according to the set gear when detecting the user's inhalation event. Among them, the higher the gear setting of the oxygen production system, the more oxygen is produced, the higher the speed of the compressor, and the higher the power consumption of the oxygen production system.

[0004] However, the oxygen production system of the related art will continue to operate at the set gear. Even if no user inhalation event is detected for a period of time, the oxygen production system will continue to produce oxygen according to the oxygen production amount corresponding to the current set gear, resulting in excessive power consumption of the oxygen production system. Summary of the invention

[0005] The present application provides an oxygen production control method and an oxygen production system to solve the problem that the existing oxygen production system continuously produces oxygen according to the oxygen production amount corresponding to the set gear, resulting in high power consumption of the oxygen production system.

[0006] The technical solution of this application is as follows:

[0007] According to a first aspect of an embodiment of the present application, there is provided an oxygen production control method, which is applied to an oxygen production system, and the method comprises:

[0008] Detecting an inhalation event of a user and generating a detection signal corresponding to the inhalation event;

[0009] Determine the interval between the detection time corresponding to the latest detection signal and the current time, and generate a first control signal when the interval is greater than a first duration threshold;

[0010] According to the first control signal, the latest oxygen production amount of the oxygen production system is reduced from the first oxygen production amount to the target oxygen production amount; wherein the first oxygen production amount is the oxygen production amount corresponding to the first gear currently set for the oxygen production system.

[0011] Optionally, generating a first control signal when the interval duration is greater than a first duration threshold includes:

[0012] When the interval duration is greater than the first duration threshold and the interval duration is less than the second duration threshold, the oxygen production system is reduced from the first gear to the second gear, and a first sub-signal corresponding to the second gear is generated;

[0013] The step of reducing the latest oxygen production amount of the oxygen production system from the first oxygen production amount to the target oxygen production amount according to the first control signal includes:

[0014] According to the first sub-signal, the latest oxygen production amount is reduced from the first oxygen production amount to a second oxygen production amount corresponding to the second gear.

[0015] Optionally, generating a first control signal when the interval duration is greater than a first duration threshold includes:

[0016] When the interval duration is greater than the second duration threshold, generating a second sub-signal;

[0017] The step of reducing the latest oxygen production amount of the oxygen production system from the first oxygen production amount to the target oxygen production amount according to the first control signal includes:

[0018] According to the second sub-signal, the latest oxygen production amount is reduced from the second oxygen production amount to zero.

[0019] Optionally, the method further includes:

[0020] When the interval duration is less than a third duration threshold, generating a second control signal corresponding to the first gear; wherein the third duration threshold is less than the first duration threshold;

[0021] According to the second control signal, the first oxygen production amount is determined as the latest oxygen production amount, and oxygen is delivered to the user according to the oxygen flow rate corresponding to the first gear.

[0022] Optionally, determining the first oxygen production amount as the latest oxygen production amount according to the second control signal includes:

[0023] According to the second control signal, the latest oxygen production pressure of the oxygen production system is determined as a target pressure value; wherein the target pressure value is the oxygen production pressure value corresponding to the first oxygen production amount;

[0024] The first oxygen production amount of oxygen is produced according to the latest oxygen production pressure.

[0025] Optionally, the detecting an inhalation event of the user and generating a detection signal corresponding to the inhalation event includes:

[0026] Sampling the user's inhalation action according to a preset sampling period;

[0027] When the number of inhalation actions sampled is greater than a preset number threshold, it is determined that an inhalation event of the user is detected, and a detection signal corresponding to the inhalation event is generated; wherein the preset number threshold is determined according to the breathing frequency of the user.

[0028] Optionally, sampling the user's inhalation action according to a preset sampling period includes:

[0029] According to a preset sampling period, the gas pressure value at the target position is detected, and the target pressure difference at the target position is determined according to the gas pressure value and the atmospheric pressure value; wherein the target position is the gas delivery position where the oxygen production system delivers oxygen to the user;

[0030] A first difference is determined according to the target pressure difference and the basic pressure difference, and when an absolute value of the first difference is greater than a preset pressure difference threshold, it is determined that an inhalation action of the user is sampled; wherein the basic pressure difference is a pressure difference calibration value when the target position is within a preset time interval after the oxygen generation system supplies oxygen to the user.

[0031] According to a second aspect of an embodiment of the present application, an oxygen production system is provided, the oxygen production system comprising a detection module, a control module and an oxygen supply module; the control module is connected to the detection module and the oxygen supply module respectively;

[0032] The detection module is used to detect the user's inhalation event, generate a detection signal corresponding to the inhalation event, and send the detection signal to the control module;

[0033] The control module is used to determine the interval between the detection time corresponding to the latest detection signal and the current time, and generate a first control signal when the interval is greater than a first time threshold, and send the first control signal to the oxygen supply module;

[0034] The oxygen supply module is used to reduce the latest oxygen production of the oxygen production system from a first oxygen production amount to a target oxygen production amount according to the first control signal; wherein the first oxygen production amount is the oxygen production amount corresponding to the first gear currently set for the oxygen production system.

[0035] Optionally, the control module is specifically used for:

[0036] When the interval duration is greater than the first duration threshold and the interval duration is less than the second duration threshold, the oxygen production system is reduced from the first gear to the second gear, and a first sub-signal corresponding to the second gear is generated;

[0037] The oxygen supply module is specifically configured to reduce the latest oxygen production amount from the first oxygen production amount to a second oxygen production amount corresponding to the second gear according to the first sub-signal.

[0038] Optionally, the control module is further used for:

[0039] When the interval duration is greater than the second duration threshold, generating a second sub-signal;

[0040] The oxygen supply module is further specifically configured to reduce the latest oxygen production amount from the second oxygen production amount to zero according to the second sub-signal.

[0041] Optionally, the control module is further configured to generate a second control signal corresponding to the first gear when the interval duration is less than a third duration threshold; wherein the third duration threshold is less than the first duration threshold;

[0042] The oxygen supply module is further configured to, according to the second control signal, determine the first oxygen production amount as the latest oxygen production amount, and deliver oxygen to the user according to the oxygen flow rate corresponding to the first gear.

[0043] Optionally, the oxygen supply module includes a pressure control unit and an adsorption unit; the control module is connected to the pressure control unit; the pressure control unit is also connected to the adsorption unit;

[0044] The pressure control unit is used to determine the latest oxygen production pressure of the oxygen production system as a target pressure value according to the second control signal; wherein the target pressure value is the oxygen production pressure value corresponding to the first oxygen production amount;

[0045] The adsorption unit is used to produce the first oxygen production amount of oxygen according to the latest oxygen production pressure.

[0046] Optionally, the detection module is specifically used for:

[0047] Sampling the user's inhalation action according to a preset sampling period;

[0048] When the number of inhalation actions sampled is greater than a preset number threshold, it is determined that an inhalation event of the user is detected, and a detection signal corresponding to the inhalation event is generated; wherein the preset number threshold is determined according to the breathing frequency of the user.

[0049] Optionally, the oxygen production system further includes a gas pipeline, a first end of the gas pipeline is connected to the oxygen supply module and the detection module respectively, and a second end of the gas pipeline is connected to the user; the detection module is further used to:

[0050] According to a preset sampling period, the gas pressure value in the gas pipeline is detected, and the corresponding target pressure difference in the gas pipeline is determined according to the gas pressure value and the atmospheric pressure value;

[0051] A first difference is determined according to the target pressure difference and the basic pressure difference, and when the absolute value of the first difference is greater than a preset pressure difference threshold, it is determined that an inhalation action of the user is sampled; wherein the basic pressure difference is a pressure difference calibration value in the gas pipeline within a preset time interval after the oxygen production system supplies oxygen to the user.

[0052] The technical solution provided by the embodiments of the present application brings at least the following beneficial effects:

[0053] In the embodiment of the present application, by detecting the user's inhalation event and generating a detection signal corresponding to the inhalation event, the interval time between the detection time corresponding to the latest detection signal and the current time is determined, so that the interval time between the current time and the user's latest inhalation event can be determined, and when the interval time is greater than the first time threshold, a first control signal is generated, and the latest oxygen production amount of the oxygen production system is reduced from the first oxygen production amount to the target oxygen production amount according to the first control signal. In this way, when the user's inhalation event is not detected for more than the first time threshold, the latest oxygen production amount of the oxygen production system can be reduced by the first control signal. Since the first oxygen production amount is the oxygen production amount corresponding to the first gear currently set by the oxygen production system, therefore, reducing the latest oxygen production amount from the first oxygen production amount to the target oxygen production amount can avoid the problem in the related art that when the oxygen production system does not detect the user's inhalation event for a period of time, it will continue to produce oxygen according to the oxygen production amount corresponding to the currently set gear, resulting in excessive power consumption of the oxygen production system. The oxygen production control method provided in the embodiment of the present application can reduce the power consumption of the oxygen production system by reducing the latest oxygen production amount of the oxygen production system.

[0054] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The drawings herein are incorporated into and constitute a part of the specification, illustrating embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application, and do not constitute an improper limitation on the present application.

[0056] Figure 1 is one of the step flow charts of an oxygen production control method according to an exemplary embodiment;

[0057] Figure 2 This is a second step flow chart of an oxygen production control method according to an exemplary embodiment;

[0058] Figure 3 is one of the structural schematic diagrams of an oxygen production system according to an exemplary embodiment;

[0059] Figure 4 is a second structural schematic diagram of an oxygen production system according to an exemplary embodiment;

[0060] Figure 5 This is a third structural schematic diagram of an oxygen production system according to an exemplary embodiment.

[0061] Reference numerals:

[0062] 10-oxygen production system; 101-detection module; 102-control module; 103-oxygen supply module; 104-gas pipeline; 1031-pressure control unit; 1032-adsorption unit; 1033-oxygen output unit. DETAILED DESCRIPTION

[0063] In order to enable ordinary persons in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0064] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0065] Figure 1 is a flowchart of a method for controlling oxygen production according to an exemplary embodiment. Figure 1 As shown, the oxygen production control method is applied to the oxygen production system 10, and the oxygen production control method may include the following steps:

[0066] Step S1, detecting an inhalation event of a user and generating a detection signal corresponding to the inhalation event.

[0067] In the embodiment of the present application, the oxygen production system 10 may be a household or medical oxygen concentrator, or a portable oxygen concentrator, etc. The oxygen production system 10 may adopt pulse oxygen supply technology, the characteristic of which is that oxygen is provided to the user only when an inhalation event of the user is detected. The oxygen production system 10 may be connected to an external power supply and powered by the external power supply, and the oxygen production system 10 itself may also include a battery and be powered by the battery. Among them, when the oxygen production system 10 is powered by a battery, if oxygen is continuously produced at a set gear, a higher power consumption will be generated, resulting in unnecessary power consumption of the battery, thereby shortening the effective use time of the user.

[0068] In the embodiment of the present application, the oxygen production system 10 can detect the user's inhalation event by detecting the change of pressure or flow in the gas pipeline 104. Specifically, the pressure difference between the inside of the gas pipeline 104 and the external atmospheric pressure can be detected. When it is detected that a negative pressure is generated in the gas pipeline 104, and the pressure difference is less than a preset pressure difference threshold, it can be determined that the user's inhalation event is detected. Alternatively, a constant continuous airflow can be delivered in the gas pipeline 104, and the oxygen production system 10 detects the airflow velocity at both ends of the inlet and outlet of the gas pipeline 104. When the difference in the airflow velocity at both ends reaches the preset velocity threshold, it is determined that the user's inhalation event is detected. This is only an example, and the embodiment of the present application is not limited to this.

[0069] Optionally, step S1 may include the following steps:

[0070] Step S11, sampling the user's inhalation action according to a preset sampling period.

[0071] In the embodiment of the present application, the preset sampling period represents the time interval between two samplings, for example, 2 milliseconds (ms), and the oxygen production system 10 samples the user's inhalation action at a certain time interval. The inhalation action of the user can be sampled by referring to the method for detecting the change of pressure or flow in the gas pipeline 104 in the aforementioned embodiment.

[0072] Optionally, step S11 may include the following steps:

[0073] Step S11a, detecting the gas pressure value at the target position according to a preset sampling period, and determining the target pressure difference at the target position according to the gas pressure value and the atmospheric pressure value; wherein the target position is the gas delivery position where the oxygen production system 10 delivers oxygen to the user.

[0074] In the embodiment of the present application, the gas pipeline 104 in the oxygen production system 10 is used to connect to the user and deliver oxygen to the user, and the target position may be the pipeline outlet position of the gas pipeline 104. The target position may be an outlet on one side of the gas pipeline 104 close to the user, or may be an outlet on one side of the gas pipeline 104 close to the oxygen production system 10, which is not limited in the embodiment of the present application.

[0075] In the embodiment of the present application, when the user inhales, a pressure difference will be generated in the gas pipeline 104 of the oxygen production system 10. The oxygen production system 10 can detect the gas pressure value at the target position according to the preset sampling cycle, that is, at a certain time interval, and then compare the obtained gas pressure value with the atmospheric pressure value corresponding to the current environment of the oxygen production system 10, so as to determine the pressure difference at the target position. Among them, the gas pressure value and the atmospheric pressure value can be subtracted to obtain the target pressure difference.

[0076] Step S11b, determining a first difference according to the target pressure difference and the basic pressure difference, and determining that an inhalation action of the user is sampled when the absolute value of the first difference is greater than a preset pressure difference threshold; wherein the basic pressure difference is a pressure difference calibration value when the target position is within a preset time interval after the oxygen generation system 10 supplies oxygen to the user.

[0077] In the embodiment of the present application, the preset pressure difference threshold value represents the threshold value corresponding to the user's inhalation action. The basic pressure difference may be a stable pressure difference in the gas pipeline 104 of the oxygen production system 10 at the non-oxygen supply time. The oxygen production system 10 may perform real-time calibration for the basic pressure difference. Specifically, the oxygen production system 10 may continuously detect the pressure difference in the gas pipeline 104 after each oxygen supply to the user, wait for the pressure difference in the gas pipeline 104 to stabilize, and then calibrate the basic pressure difference according to the stable pressure difference within the preset time interval. Among them, the stable pressure difference within the preset time interval may be averaged or median, etc., to calculate the pressure difference calibration value as the basic pressure difference. The preset time interval may be determined according to actual application requirements. For example, the average of the stable pressure difference in the gas pipeline 104 of the oxygen production system 10 within 10 seconds (s) may be used as the basic pressure difference.

[0078] In the embodiment of the present application, after the oxygen production system 10 obtains the target pressure difference at the target position each time, the target pressure difference can be compared with the basic pressure difference at the target position, so as to determine the pressure difference change at the target position, i.e., the first difference. Among them, the target pressure difference can be subtracted from the basic pressure difference to obtain the first difference, and the first difference can be a negative value. The preset pressure difference threshold can be a positive value, and the actual value can be determined according to application requirements, which is not limited in the embodiment of the present application. The oxygen production system 10 can compare the absolute value of the first difference with the preset pressure difference threshold. If it is greater than the preset pressure difference threshold, valid data is recorded once, that is, it is determined that an inhalation action of the user is sampled. If it is not greater than the preset pressure difference threshold, the target pressure difference sampled this time is invalid data.

[0079] For example, the first difference obtained by subtracting the target pressure difference from the basic pressure difference is -30 Pa (Pa), and the preset pressure difference threshold is set to 20 Pa (Pa). Then, the absolute value of the first difference is greater than the preset pressure difference threshold, and it can be determined that an inhalation action of the user is sampled.

[0080] In the embodiment of the present application, the gas pressure value at the target position is detected according to the preset sampling period, and the target pressure difference at the target position is determined according to the gas pressure value and the atmospheric pressure value. Since the target position is the gas delivery position where the oxygen production system 10 delivers oxygen to the user, the oxygen production system 10 can detect the pressure difference between the gas pressure value at the gas delivery position and the atmospheric pressure value, and determine the first difference according to the target pressure difference and the basic pressure difference, and determine that an inhalation action of the user is sampled when the absolute value of the first difference is greater than the preset pressure difference threshold. In this way, the change in the pressure difference at the target position, that is, the first difference, and the relationship between the first difference and the preset pressure difference threshold can be determined, so as to determine whether valid data is sampled, that is, an inhalation action of the user is sampled. Since the basic pressure difference is the pressure difference calibration value of the target position within the preset time interval after the oxygen production system 10 supplies oxygen to the user, the determined first difference can be made more accurate, thereby improving the sampling accuracy of the user's inhalation action.

[0081] Step S12, when the number of sampled inhalation actions is greater than a preset number threshold, determining that an inhalation event of the user is detected, and generating a detection signal corresponding to the inhalation event; wherein the preset number threshold is determined according to the breathing frequency of the user.

[0082] In the embodiment of the present application, the preset number threshold can be dynamically set according to the user's breathing frequency, so that the detection process of the user's inhalation event by the oxygen generation system 10 is more adapted to the user, thereby making the detection signal corresponding to the inhalation event more accurate. Specifically, for users with slow breathing frequency, the actual value of the preset number threshold can be increased, and for users with low breathing frequency, the preset number threshold can be reduced, so that users with high breathing frequency can be triggered faster and users with low breathing frequency can be judged more stably. For example, when the breathing frequency is less than or equal to 20 times / minute, the preset number threshold is set to 5 times, and when the breathing frequency is greater than 20 times / minute, the preset number threshold is set to 3 times. This is only an example, and the embodiment of the present application does not limit this.

[0083] In the embodiment of the present application, the determination of the inhalation event can be determined by whether the number of inhalation actions of the user exceeds a preset determination number, that is, when the number of inhalation actions of the user sampled is greater than the preset number threshold, it is determined that an inhalation event of the user is detected. The detection signal corresponding to the inhalation event is used to characterize the detection of the inhalation event of the user, and the detection time may include the detection time of the inhalation event. Specifically, the detection time may be the sampling time of the most recent inhalation action of the user.

[0084] In the embodiment of the present application, the user's inhalation action is sampled according to a preset sampling period, and when the number of sampled inhalation actions is greater than a preset number threshold, it is determined that an inhalation event of the user is detected. In this way, when the user's inhalation action accumulates to exceed the preset number threshold, it is determined that an inhalation event of the user is detected, and a detection signal corresponding to the inhalation event is generated. Since the preset number threshold is determined according to the user's breathing frequency, the preset number threshold is more adapted to the user, thereby making the user's inhalation event determined according to the preset number threshold more accurate.

[0085] Step S2, determining the interval between the detection time corresponding to the latest detection signal and the current time, and generating a first control signal when the interval is greater than a first interval threshold.

[0086] In the embodiment of the present application, the latest detection signal may be the detection signal corresponding to the latest inhalation event of the user. The detection time corresponding to the detection signal may be the generation time of the detection signal, or may be the detection time of the most recent inhalation action of the user in the inhalation event corresponding to the detection signal. This is only an example, and the embodiment of the present application does not limit this.

[0087] In the embodiment of the present application, by determining the interval between the detection time corresponding to the latest detection signal and the current time, the interval between the latest inhalation event of the user and the current time can be determined. If the interval is longer than the first time threshold value set in advance, it means that the oxygen production system 10 has not detected the user's inhalation event for more than the first time threshold value, and in order to reduce the power consumption of the oxygen production system 10, the oxygen production amount can be reduced by controlling the first control signal, thereby avoiding the situation that when the user's inhalation event is not detected for a certain period of time, oxygen is still continuously produced according to the original oxygen production amount, resulting in higher power consumption of the oxygen production system 10. Among them, the first control signal may include a target oxygen production amount.

[0088] Step S3, according to the first control signal, reducing the latest oxygen production capacity of the oxygen production system 10 from the first oxygen production capacity to the target oxygen production capacity; wherein the first oxygen production capacity is the oxygen production capacity corresponding to the first gear currently set by the oxygen production system 10.

[0089] In the embodiment of the present application, the oxygen production system 10 may include multiple gears, and different gears indicate that the oxygen supply of the oxygen production system 10 to the user is different. Correspondingly, the oxygen production corresponding to different gears is also different. For example, the oxygen production system 10 may include 1 to 5 gears, and the higher the gear, the higher the corresponding oxygen supply, and the corresponding oxygen production is also higher. The first gear currently set to the oxygen production system 10 represents the original setting gear of the oxygen production system 10 before the operation of reducing the latest oxygen production is performed. The first gear can be the lowest gear, the highest gear, or other gears, and the embodiment of the present application does not limit this.

[0090] In the embodiment of the present application, the target oxygen production amount may be the oxygen production amount corresponding to the setting gear of the oxygen production system 10 lower than the first gear, or the target oxygen production amount may be zero, indicating that the oxygen production system 10 stops producing oxygen and enters a standby state. After the oxygen production system 10 enters the standby state, the hardware related to the oxygen production process may stop working, and only the unit for detecting the user's inhalation event may be retained.

[0091] In the embodiment of the present application, the oxygen production system 10 can determine the target oxygen production amount as the latest oxygen production amount of the oxygen production system 10 according to the first control signal, so that the latest oxygen production amount is reduced from the first oxygen production amount corresponding to the first gear to the target oxygen production amount. In this way, since the oxygen production system 10 needs to produce less oxygen, the power consumption generated by the oxygen production system 10 is also reduced.

[0092] Optionally, step S2 may include the following steps:

[0093] Step S21, when the interval duration is greater than the first duration threshold and the interval duration is less than the second duration threshold, the oxygen production system 10 is reduced from the first gear to the second gear, and a first sub-signal corresponding to the second gear is generated.

[0094] Step S3 may include the following steps:

[0095] Step S31: according to the first sub-signal, reducing the latest oxygen production amount from the first oxygen production amount to a second oxygen production amount corresponding to the second gear.

[0096] In the embodiment of the present application, the second duration threshold is a set value greater than the first duration threshold, for example, the first duration threshold is 1 minute (min), and the second duration threshold can be 5 minutes. When the interval duration is greater than the first duration threshold, and the interval duration is less than the second duration threshold, it means that the oxygen production system 10 has not detected the user's inhalation event temporarily. In order to reduce the power consumption of the oxygen production system 10, the setting gear of the oxygen production system 10 can be lowered first, that is, from the first gear to the second gear. Among them, the second gear can be the lowest gear of the oxygen production system 10, or the second gear can be a set gear lower than the first gear, and the embodiment of the present application does not limit this.

[0097] In the embodiment of the present application, the first sub-signal corresponding to the second gear may include the second oxygen production amount corresponding to the second gear. The oxygen production system 10 may determine the latest oxygen production amount of the oxygen production system 10 as the second oxygen production amount according to the first sub-signal, thereby reducing the latest oxygen production amount from the first oxygen production amount to the second oxygen production amount corresponding to the second gear.

[0098] In the embodiment of the present application, when the interval duration is greater than the first duration threshold and the interval duration is less than the second duration threshold, the oxygen production system 10 is reduced from the first gear to the second gear, and a first sub-signal corresponding to the second gear is generated. According to the first sub-signal, the latest oxygen production amount is reduced from the first oxygen production amount to the second oxygen production amount corresponding to the second gear. In this way, the latest oxygen production amount can be reduced by reducing the set gear of the oxygen production system 10, thereby reducing the power consumption of the oxygen production system 10. Although the oxygen production amount is reduced, the oxygen production function is not stopped, so that when the user's inhalation event is detected again, it can respond quickly to resume oxygen supply to the user.

[0099] Optionally, step S2 may include the following steps:

[0100] Step S22: generating a second sub-signal when the interval duration is greater than the second duration threshold.

[0101] Step S3 may include the following steps:

[0102] Step S32: according to the second sub-signal, reducing the latest oxygen production amount from the second oxygen production amount to zero.

[0103] In the embodiment of the present application, when the interval duration is greater than the second duration threshold, it means that the oxygen production system 10 has not detected the user's inhalation event for a long time. In order to further reduce the power consumption of the oxygen production system 10, the oxygen production function can be directly turned off, that is, the latest oxygen production amount is reduced to zero, so that the oxygen production system 10 enters a standby state.

[0104] In the embodiment of the present application, the second sub-signal may include information that the latest oxygen production amount is zero. The oxygen production system 10 may determine the latest oxygen production amount to be zero according to the second sub-signal, thereby stopping the oxygen production function. After the oxygen production system 10 enters the standby state, the hardware related to the oxygen production process may stop working, and only the unit for detecting the user's inhalation event may be retained. In this way, the power consumption may be reduced to a minimum while retaining the function of detecting the user's inhalation event. After the user's inhalation event is detected again, the oxygen production system 10 may resume the oxygen production function and supply oxygen to the user.

[0105] In the embodiment of the present application, when the interval duration is greater than the second duration threshold, a second sub-signal is generated, and according to the second sub-signal, the latest oxygen production amount is reduced from the second oxygen production amount to zero. In this way, the oxygen production function of the oxygen production system 10 can be stopped, thereby avoiding power consumption caused by the oxygen production process when no user's inhalation event is detected for a long time.

[0106] Optional, see Figure 2 , the oxygen production control method may further include the following steps:

[0107] Step S4, generating a second control signal corresponding to the first gear when the interval duration is less than a third duration threshold; wherein the third duration threshold is less than the first duration threshold.

[0108] In the embodiment of the present application, the third duration threshold represents the effective interval duration of the user's inhalation event. If the interval duration between the detection time corresponding to the latest detection signal and the current time is less than the third duration threshold, it means that the oxygen production system 10 has detected a valid user inhalation event, and the oxygen production system 10 needs to produce and supply oxygen to the user according to the current setting gear, that is, the first gear. The second control signal may include the first oxygen production amount corresponding to the first gear, and the oxygen flow rate of the first gear to the user. Among them, after the oxygen production system 10 is reduced from the first gear to the second gear, if the oxygen production system 10 detects the user's inhalation event again and generates a corresponding detection signal, according to the size relationship between the detection time of the detection signal and the third duration threshold, if it is less than the third duration threshold, it means that the oxygen production system 10 has re-detected the user's inhalation event, and the oxygen production system 10 can be controlled to return to the original setting gear, that is, the first gear, and then produce and supply oxygen to the user according to the first gear.

[0109] The third time threshold is set to be smaller than the first time threshold. In actual applications, the third time threshold can be determined according to the preset sampling period of the oxygen production system 10 for the user's inhalation action. For example, the oxygen production system 10 samples the pressure difference of the gas pipeline 104 once every 2 ms, and the preset number threshold is 5 times, then the third time threshold can be set to 30 ms. This is only an example, and the embodiment of the present application does not limit this.

[0110] Step S5: according to the second control signal, determining the first oxygen production amount as the latest oxygen production amount, and delivering oxygen to the user according to the oxygen flow rate corresponding to the first gear.

[0111] In the embodiment of the present application, the oxygen production system 10 can produce oxygen by the principle of pressure swing adsorption. The principle of pressure swing adsorption is to use the selective adsorption characteristics of zeolite molecular sieves, adopt a cycle of pressurized adsorption and decompressed desorption, and make the compressed air alternately enter the adsorption tower to achieve air separation, thereby continuously producing a certain amount of oxygen. The second control signal may include a third sub-signal and a fourth sub-signal. The oxygen production system 10 may determine the operating pressure of the oxygen production system 10 according to the first oxygen production amount indicated by the third sub-signal, thereby producing the first oxygen production amount of oxygen, and then, according to the oxygen flow corresponding to the first gear indicated by the fourth sub-signal, oxygen is delivered to the user through the gas pipeline 104 of the oxygen production system 10.

[0112] Optionally, step S5 may include the following steps:

[0113] Step S51: according to the second control signal, determining the latest oxygen production pressure of the oxygen production system 10 as a target pressure value; wherein the target pressure value is the oxygen production pressure value corresponding to the first oxygen production amount.

[0114] Step S52: producing the first oxygen production amount of oxygen according to the latest oxygen production pressure.

[0115] In the embodiment of the present application, the oxygen production system 10 can determine the operating pressure value of the oxygen production system 10, that is, the latest oxygen production pressure, according to the first oxygen production volume. The oxygen production system 10 may include a compressor, and the system pressure can be changed by controlling the speed of the compressor so that the latest oxygen production pressure is equal to the target pressure value, and then the oxygen of the first oxygen production volume is produced by the pressure swing adsorption principle.

[0116] In the embodiment of the present application, the latest oxygen production pressure of the oxygen production system 10 is determined as the target pressure value according to the second control signal, and the target pressure value is the oxygen production pressure value corresponding to the first oxygen production amount. The first oxygen production amount of oxygen is produced according to the latest oxygen production pressure. In this way, the oxygen production system 10 can change the oxygen production pressure value of the oxygen production system 10 through the second control signal, that is, the latest oxygen production pressure is determined as the target pressure value, so that the oxygen production system 10 produces the first oxygen production amount of oxygen according to the latest oxygen production pressure, which can improve the practicality of the oxygen production control method of the embodiment of the present application.

[0117] In the embodiment of the present application, when the interval duration is less than the third duration threshold, the second control signal corresponding to the first gear is generated. Since the third duration threshold is less than the first duration threshold, it can be determined that the oxygen production system 10 has detected a valid user inhalation event, and the first oxygen production amount is determined as the latest oxygen production amount according to the second control signal, and oxygen is delivered to the user according to the oxygen flow rate corresponding to the first gear. In this way, the oxygen production system 10 can produce oxygen for the user according to the currently set first gear through the second control signal, and deliver oxygen to the user according to the oxygen flow rate corresponding to the first gear, which can improve the practicality of the oxygen production control method of the embodiment of the present application.

[0118] In the embodiment of the present application, by detecting the user's inhalation event and generating a detection signal corresponding to the inhalation event, the interval time between the detection time corresponding to the latest detection signal and the current time is determined, so that the interval time between the current time and the user's latest inhalation event can be determined, and when the interval time is greater than the first time threshold, a first control signal is generated, and the latest oxygen production amount of the oxygen production system 10 is reduced from the first oxygen production amount to the target oxygen production amount according to the first control signal. In this way, when the user's inhalation event is not detected after the first time threshold, the first control signal is used to control the oxygen production amount of the oxygen production system 10. The latest oxygen production amount of the oxygen production system 10 is reduced. Since the first oxygen production amount is the oxygen production amount corresponding to the first gear currently set by the oxygen production system 10, the latest oxygen production amount is reduced from the first oxygen production amount to the target oxygen production amount. This can avoid the problem in the related art that, when the oxygen production system 10 does not detect a user inhalation event for a period of time, it will continue to produce oxygen according to the oxygen production amount corresponding to the currently set gear, resulting in excessive power consumption of the oxygen production system 10. The oxygen production control method provided in the embodiment of the present application can reduce the power consumption of the oxygen production system 10 by reducing the latest oxygen production amount of the oxygen production system 10.

[0119] Figure 3 is one of the structural schematic diagrams of an oxygen production system according to an exemplary embodiment. Figure 3 As shown, the oxygen production system 10 includes: a detection module 101, a control module 102 and an oxygen supply module 103; the control module 102 is connected to the detection module 101 and the oxygen supply module 103 respectively;

[0120] The detection module 101 is used to detect the user's inhalation event, generate a detection signal corresponding to the inhalation event, and send the detection signal to the control module 102;

[0121] The control module 102 is used to determine the interval between the detection time corresponding to the latest detection signal and the current time, and generate a first control signal when the interval is greater than a first time threshold, and send the first control signal to the oxygen supply module 103;

[0122] The oxygen supply module 103 is used to reduce the latest oxygen production of the oxygen production system 10 from the first oxygen production amount to the target oxygen production amount according to the first control signal; wherein the first oxygen production amount is the oxygen production amount corresponding to the first gear currently set by the oxygen production system 10.

[0123] In the embodiment of the present application, the control module 102 can establish communication connections with the detection module 101 and the oxygen supply module 103 respectively, wherein the communication connection can be a wired connection or a wireless connection, which is not limited in the embodiment of the present application. The detection module 101 can detect the user's inhalation event and generate a detection signal corresponding to the inhalation event. The detection method of the inhalation event can refer to the relevant description of step S1 in the above-mentioned oxygen production control method embodiment, which will not be repeated here. The detection module can send the detection signal of the inhalation event to the control module 102 through the communication connection established with the control module 102. Specifically, after the detection module 101 detects an inhalation event again, the detection signal of the inhalation event is sent to the control module 102 in real time. The signal transmission delay of the detection module 101 should be less than the delay threshold, so that after the control module 102 receives the detection signal, it can determine the interval between the user's latest inhalation event and the current time more accurately according to the latest detection signal.

[0124] Optionally, the detection module 101 is specifically used for:

[0125] Sampling the user's inhalation action according to a preset sampling period;

[0126] When the number of inhalation actions sampled is greater than a preset number threshold, it is determined that an inhalation event of the user is detected, and a detection signal corresponding to the inhalation event is generated; wherein the preset number threshold is determined according to the breathing frequency of the user.

[0127] In the embodiment of the present application, the oxygen production system 10 can detect the change of pressure or flow in the gas pipeline 104 through the detection module 101, so as to detect the inhalation event of the user. The specific detection method of the pressure or flow change can refer to the relevant description in step S1 in the above embodiment, which will not be repeated here.

[0128] Optionally, the oxygen production system 10 further includes a gas pipeline 104, a first end of the gas pipeline 104 is connected to the oxygen supply module 103 and the detection module 101 respectively, and a second end of the gas pipeline 104 is connected to the user; the detection module 101 is further used for:

[0129] According to a preset sampling period, the gas pressure value in the gas pipeline 104 is detected, and the corresponding target pressure difference in the gas pipeline 104 is determined according to the gas pressure value and the atmospheric pressure value;

[0130] A first difference is determined according to the target pressure difference and the basic pressure difference, and when the absolute value of the first difference is greater than a preset pressure difference threshold, it is determined that an inhalation action of the user is sampled; wherein the basic pressure difference is a pressure difference calibration value in the gas supply pipeline 104 within a preset time interval after the oxygen production system 10 supplies oxygen to the user.

[0131] In the embodiment of the present application, the oxygen production system 10 further includes a gas pipeline 104, the first end of the gas pipeline 104 is connected to the oxygen supply module 103, and the second end of the gas pipeline 104 is used to connect to the user, and the oxygen supply module 103 can deliver oxygen to the user through the gas pipeline 104. Among them, the first end of the gas pipeline 104 is connected to the oxygen output unit 1033. The detection module 101 may include a differential pressure sensor, one end of the differential pressure sensor may be arranged in the gas pipeline 104, and used to test the pressure in the gas pipeline 104, and the other end of the differential pressure sensor is connected to the atmosphere, and the pressure difference between the pressure in the gas pipeline 104 and the atmospheric pressure can be tested. The detection module 101 may also include a control unit, which is used to perform data processing on the pressure difference detected by the differential pressure sensor according to the inhalation algorithm, and after determining that the inhalation event of the user is detected, generate a detection signal corresponding to the inhalation event, and send the detection signal to the control module 102. Among them, the inhalation detection algorithm can refer to the relevant description of steps S11 to S12 in the above-mentioned oxygen production control method embodiment, which will not be repeated here.

[0132] In the embodiment of the present application, the control module 102 is used to receive the detection signal of the inhalation event sent by the detection module 101, and determine whether the user is using the oxygen production system 10 according to the detection signal. If the user is using it, the oxygen production system 10 enters the working state, and if the user is no longer using it, the oxygen production system 10 enters the standby state. The oxygen production system 10 can stop the oxygen production function in the standby state, and only needs to maintain the normal operation of the detection module 101 and detect the user's inhalation event, thereby reducing the system power consumption of the oxygen production system 10.

[0133] In the embodiment of the present application, the control module 102 can set different gears of the oxygen production system 10, and different set gears provide different initial oxygen supply amounts to the user. Specifically, the oxygen production system 10 may include multiple gears, and different gears indicate that the oxygen supply amount of the oxygen production system 10 to the user is different, and accordingly, the oxygen production amount corresponding to different gears is also different. For example, the oxygen production system 10 may include 1 to 5 gears, and the higher the gear, the higher the corresponding oxygen supply amount, and the corresponding oxygen production amount is also higher.

[0134] In the embodiment of the present application, the control module 102 can determine the interval between the user's latest inhalation event and the current time by determining the interval between the detection time corresponding to the latest detection signal and the current time. If the interval is longer than the first time threshold value set in advance, it means that the oxygen production system 10 has not detected the user's inhalation event for more than the first time threshold value. In order to reduce the power consumption of the oxygen production system 10, the oxygen production amount can be reduced by controlling the first control signal, thereby avoiding the problem of high power consumption of the oxygen production system 10 by continuing to produce oxygen according to the original oxygen production amount when the user's inhalation event is not detected for a certain period of time. The control logic executed by the control module 102 can refer to the relevant description of step S2 and step S4 in the aforementioned oxygen production control method embodiment, which will not be repeated here.

[0135] In the embodiment of the present application, the oxygen production system 10 further includes a gas pipeline 104, a first end of which is connected to the oxygen supply module 103 and the detection module 101 respectively, and a second end of the gas pipeline 104 is connected to a user; the detection module 101 detects the gas pressure value in the gas pipeline 104 according to a preset sampling period, and determines the corresponding target pressure difference in the gas pipeline 104 according to the gas pressure value and the atmospheric pressure value; in this way, the change in the pressure difference at the target position, i.e., the first difference, and the magnitude relationship between the first difference and the preset pressure difference threshold value can be determined, thereby determining whether an inhalation action of the user is sampled. Since the basic pressure difference is a pressure difference calibration value in the gas pipeline 104 within a preset time interval after the oxygen production system 10 supplies oxygen to the user, the determined first difference can be made more accurate, thereby improving the sampling accuracy of the user's inhalation action.

[0136] In the embodiment of the present application, the detection module 101 samples the user's inhalation action according to a preset sampling period. When the number of sampled inhalation actions is greater than a preset number threshold, it is determined that an inhalation event of the user is detected. In this way, when the user's inhalation action accumulates to exceed the preset number threshold, it is determined that an inhalation event of the user is detected, and a detection signal corresponding to the inhalation event is generated. Since the preset number threshold is determined according to the user's breathing frequency, the preset number threshold is more adapted to the user, so that the user's inhalation event determined according to the preset number threshold is more accurate.

[0137] Optionally, the control module 102 is specifically used for:

[0138] When the interval duration is greater than the first duration threshold and less than the second duration threshold, the oxygen production system 10 is reduced from the first gear to the second gear, and a first sub-signal corresponding to the second gear is generated.

[0139] In the embodiment of the present application, after determining the interval duration corresponding to the latest detection signal, the control module 102 can determine the control strategy according to the size relationship between the interval duration and the first duration threshold, the second duration threshold, and the third duration threshold, and generate a corresponding control signal. Specifically, when the interval duration is greater than the first duration threshold and the interval duration is less than the second duration threshold, it means that the oxygen production system 10 has not detected the user's inhalation event temporarily, then the control module 102 can reduce the current setting gear of the oxygen production system 10 from the first gear to the second gear, generate a first sub-signal, and send the first sub-signal to the oxygen supply module 103, so as to control the oxygen supply module 103 to reduce the latest oxygen production amount from the first oxygen production amount to the second oxygen production amount corresponding to the second gear according to the first sub-signal, and produce oxygen of the second oxygen production amount.

[0140] Optionally, the control module 102 is further configured to:

[0141] When the interval duration is greater than the second duration threshold, a second sub-signal is generated.

[0142] In the embodiment of the present application, when the interval duration is greater than the second duration threshold, it means that the oxygen production system 10 has not detected the user's inhalation event for a long time, and the control module 102 can control the oxygen production system 10 to enter the standby state. Specifically, the control module 102 can generate a second sub-signal and send the second sub-signal to the oxygen supply module 103 to control the oxygen supply module 103 to reduce the latest oxygen production amount from the second oxygen production amount to zero according to the second sub-signal, thereby stopping the oxygen production function of the oxygen production system 10 and reducing system power consumption.

[0143] Optionally, the control module 102 is further used to generate a second control signal corresponding to the first gear when the interval duration is less than a third duration threshold; wherein the third duration threshold is less than the first duration threshold.

[0144] In the embodiment of the present application, when the interval duration is less than the third duration threshold, it means that the detection module 101 detects a valid user inhalation event, and the control module 102 can maintain the current setting gear of the oxygen production system 10, and control the oxygen supply module 103 to work according to the currently set first gear. Specifically, the control module 102 can generate a second control signal corresponding to the first gear, and send the second control signal to the oxygen supply module 103, so as to control the oxygen supply module 103 to determine the first oxygen production amount as the latest oxygen production amount according to the second control signal, and deliver oxygen to the user according to the oxygen flow rate corresponding to the first gear.

[0145] In the present application examples, see Figure 4 The oxygen supply module 103 may include a pressure control unit 1031, an adsorption unit 1032 and an oxygen output unit 1033. The pressure control unit 1031 is used to control the latest oxygen production pressure of the operation, the adsorption unit 1032 is used to produce a corresponding amount of oxygen according to the latest oxygen production pressure through the pressure swing adsorption principle, and the oxygen output unit 1033 can be connected to the gas pipeline to supply oxygen to the user according to the current setting gear of the oxygen production system 10. The pressure swing adsorption principle can refer to the relevant description in step S5 in the above-mentioned oxygen production control method embodiment, which will not be repeated here.

[0146] In the embodiment of the present application, the first control signal sent by the control module 102 can be received by the pressure control unit 1031. In response to the first control signal, the pressure control unit 1031 can adjust the actual value of the latest oxygen production pressure output, thereby changing the actual amount of oxygen produced by the adsorption unit 1032, so that the latest oxygen production amount of the oxygen production system 10 is reduced from the first oxygen production amount corresponding to the currently set first gear to the target oxygen production amount. The specific implementation of the oxygen supply module 103 can refer to the relevant description of step S3 in the above-mentioned oxygen production control method embodiment, which will not be repeated here.

[0147] Optionally, the oxygen supply module 103 is specifically configured to, according to the first sub-signal, reduce the latest oxygen production amount from the first oxygen production amount to a second oxygen production amount corresponding to the second gear.

[0148] Optionally, the oxygen supply module 103 is further specifically configured to reduce the latest oxygen production amount from the second oxygen production amount to zero according to the second sub-signal.

[0149] Optionally, the oxygen supply module 103 is further used to determine the first oxygen production amount as the latest oxygen production amount according to the second control signal, and deliver oxygen to the user according to the oxygen flow rate corresponding to the first gear.

[0150] In the embodiment of the present application, the first sub-signal sent by the control module 102 can be received by the pressure control unit 1031. In response to the first sub-signal, the pressure control unit 1031 can adjust the output latest oxygen production pressure to the oxygen production pressure value corresponding to the second oxygen production amount, so that the adsorption unit 1032 produces oxygen of the second oxygen production amount according to the oxygen production pressure value corresponding to the second oxygen production amount, so that the latest oxygen production amount of the oxygen production system 10 is reduced from the first oxygen production amount to the second oxygen production amount corresponding to the second gear. The specific implementation method can refer to the relevant description of step S31 in the above-mentioned oxygen production control method embodiment, which will not be repeated here.

[0151] In the embodiment of the present application, the second sub-signal sent by the control module 102 can be received by the pressure control unit 1031. In response to the second sub-signal, the pressure control unit 1031 can adjust the output latest oxygen production pressure to zero, that is, the pressure control unit 1031 stops working, so that the adsorption unit 1032 also stops working, so that the latest oxygen production amount of the oxygen production system 10 is reduced to zero, and the oxygen production function of the oxygen production system 10 is turned off. The specific implementation method can refer to the relevant description of step S32 in the above oxygen production control method embodiment, which will not be repeated here.

[0152] In the embodiment of the present application, the second sub-signal sent by the control module 102 can be received by the pressure control unit 1031. In response to the second sub-signal, the pressure control unit 1031 can adjust the output latest oxygen production pressure to zero, that is, the pressure control unit 1031 stops working, so that the adsorption unit 1032 also stops working, so that the latest oxygen production amount of the oxygen production system 10 is reduced to zero, and the oxygen production function of the oxygen production system 10 is turned off. The specific implementation method can refer to the relevant description of step S32 in the above oxygen production control method embodiment, which will not be repeated here.

[0153] Referring to Table 1, the oxygen production system 10 may include a working state and a test state. In the working state, when the detection module 101 detects an inhalation event of a user, the control module 102 may send a control signal to the oxygen supply module 103 according to the set gear, so that the oxygen supply module 103 produces oxygen and supplies oxygen to the user, and the system power consumption is normal.

[0154] Table 1 Oxygen production system control logic

[0155]

[0156] Referring to Table 1, when the detection module 101 does not detect the user's inhalation event for a duration of t1, the control module 102 can reduce the setting gear of the oxygen production system 10 to the lowest gear, i.e., gear 1, and send a control signal corresponding to gear 1 to the oxygen supply module 103, so that the oxygen supply module 103 reduces the oxygen production amount, thereby preliminarily reducing the system power consumption. When the detection module 101 does not detect the user's inhalation event for a duration of t2, the control module 102 can control the oxygen supply module 103 to stop producing oxygen, thereby controlling the oxygen production system to enter a standby state, so as to minimize power consumption.

[0157] In Table 1, when the oxygen production system 10 is in the standby state, the hardware related to the oxygen production process in the oxygen production system 10 stops working, and only the unit for detecting the user's inhalation event continues to work. When the oxygen production system 10 is in the standby state, it detects the user's inhalation event again and generates a corresponding detection signal. At this time, the detection time of the detection signal is less than the third time threshold, indicating that the oxygen production system 10 has re-detected the user's inhalation event. The oxygen production system 10 can start the oxygen production function, restore the oxygen production system 10 to the set gear, such as the first gear, and send a control signal, such as the second control signal corresponding to the first gear, so that the oxygen production system 10 resumes oxygen production and delivers oxygen to the user. At this time, the power consumption of the oxygen production system 10 is the normal power consumption in the working state. Specifically, the second control signal may include a third sub-signal and a fourth sub-signal. The oxygen production system 10 may determine the operating pressure of the oxygen production system 10 according to the first oxygen production amount indicated by the third sub-signal, thereby producing oxygen of the first oxygen production amount, and the oxygen production system 10 may deliver oxygen to the user through the gas pipeline 104 of the oxygen production system 10 according to the oxygen flow rate corresponding to the first gear indicated by the fourth sub-signal.

[0158] In Table 1, when the oxygen production system 10 does not detect the user's inhalation event for a long time, the oxygen production system 10 maintains the generation and sending functions of the shutdown control signal in the standby state, such as stopping sending the second control signal, so that the oxygen production system 10 maintains the power consumption at the lowest value in the standby state. In this way, the problem of excessive power consumption caused by retaining the oxygen production function when the oxygen production system 10 does not detect the user's inhalation event for a long time can be avoided. By controlling the control logic of the oxygen production system 10 to reduce the set gear or enter the standby state, the power consumption of the oxygen production system 10 can be reasonably reduced.

[0159] In the embodiment of the present application, when the interval time is greater than the first time threshold and the interval time is less than the second time threshold, the control module 102 reduces the oxygen production system 10 from the first gear to the second gear, and generates a first sub-signal corresponding to the second gear. The oxygen supply module 103 reduces the latest oxygen production amount from the first oxygen production amount to the second oxygen production amount corresponding to the second gear according to the first sub-signal. In this way, the power consumption of the oxygen production system 10 can be preliminarily reduced by reducing the set gear of the oxygen production system 10 and reducing the latest oxygen production amount. Although the oxygen production system 10 reduces the set gear, the oxygen production function is not stopped. The oxygen supply module 103 can still produce oxygen of the second oxygen production amount, so that when the user's inhalation event is detected again, it can quickly respond to resume oxygen supply to the user.

[0160] In the embodiment of the present application, the control module 102 generates a second sub-signal when the interval duration is greater than the second duration threshold, and according to the second sub-signal, the latest oxygen production amount is reduced from the second oxygen production amount to zero. In this way, the oxygen supply module 103 can stop working, thereby avoiding unnecessary system power consumption caused by the oxygen production process of the oxygen supply module 103 when no user's inhalation event is detected for a long time.

[0161] In the embodiment of the present application, the control module 102 generates a second control signal corresponding to the first gear when the interval duration is less than the third duration threshold. Since the third duration threshold is less than the first duration threshold, it can be determined that the oxygen production system 10 detects a valid user inhalation event, and the oxygen supply module 103 determines the first oxygen production amount as the latest oxygen production amount according to the second control signal, and delivers oxygen to the user according to the oxygen flow rate corresponding to the first gear. In this way, the oxygen production system 10 can produce oxygen for the user according to the currently set first gear, and deliver oxygen to the user according to the oxygen flow rate corresponding to the first gear, which can improve the practicality of the oxygen production control method of the embodiment of the present application.

[0162] Optionally, the oxygen supply module 103 includes a pressure control unit 1031 and an adsorption unit 1032; the control module 102 is connected to the pressure control unit 1031; the pressure control unit 1031 is also connected to the adsorption unit 1032;

[0163] The pressure control unit 1031 is used to determine the latest oxygen production pressure of the oxygen production system 10 as a target pressure value according to the second control signal; wherein the target pressure value is the oxygen production pressure value corresponding to the first oxygen production amount;

[0164] The adsorption unit 1032 is used to produce the first oxygen production amount of oxygen according to the latest oxygen production pressure.

[0165] In the embodiment of the present application, the pressure control unit 1031 may include a compressor, and the adsorption unit 1032 has an adsorbent inside. The pressure control unit 1031 receives a control signal sent by the control module 102, and can change the speed of the compressor in response to the control signal, thereby changing the latest oxygen production pressure of the oxygen production system 10, so that the adsorption unit 1032 produces oxygen of the second oxygen production amount corresponding to the second gear according to the latest oxygen production pressure after the reduction.

[0166] Specifically, the pressure control unit 1031 receives the first sub-signal sent by the control module 102, and can respond to the first sub-signal to reduce the compressor speed, thereby reducing the latest oxygen production pressure of the oxygen production system 10 to the oxygen production pressure value corresponding to the second oxygen production amount. The pressure control unit 1031 receives the second sub-signal sent by the control module 102, and can respond to the second sub-signal to control the compressor to stop working, thereby shutting down the oxygen production function of the oxygen production system 10.

[0167] In the embodiment of the present application, the pressure control unit 1031 receives the third sub-signal sent by the control module 102, and can respond to the third sub-signal to change the compressor speed so that the latest oxygen production pressure of the oxygen production system 10 matches the oxygen production pressure value corresponding to the first oxygen production amount, that is, the target pressure value, and then the adsorption unit 1032 produces oxygen of the first oxygen production amount corresponding to the first gear according to the latest oxygen production pressure after the reduction. The specific implementation method can refer to the relevant description of step S5 in the above oxygen production control method embodiment, which will not be repeated here.

[0168] In the embodiment of the present application, the oxygen supply module 103 also includes an oxygen output unit 1033, which is connected to the adsorption unit 1032; the oxygen output unit 1033 is used to deliver oxygen to the user according to the oxygen flow rate corresponding to the first gear according to the second control signal. The oxygen output unit 1033 may include a control unit, a pressure sensor and an oxygen storage tank, the oxygen storage tank is used to store a certain amount of oxygen, the pressure sensor is connected to the oxygen storage tank, and is used to detect the pressure inside the oxygen storage tank, the control unit is used to receive the fourth sub-signal sent by the control module 102, and according to the oxygen flow rate corresponding to the set gear indicated by the fourth sub-signal, see Figure 5 , oxygen is delivered to the user through the gas delivery pipeline 104. A solenoid valve may be provided on the gas delivery pipeline 104, and the solenoid valve may be electrically connected to the control unit inside the oxygen output unit 1033. The control unit may open the solenoid valve in response to the fourth sub-signal, thereby supplying oxygen to the user when the user inhales.

[0169] In the embodiment of the present application, the oxygen supply module 103 includes a pressure control unit 1031 and an adsorption unit 1032. The pressure control unit 1031 can determine the latest oxygen production pressure of the oxygen production system 10 as the target pressure value according to the second control signal. Since the target pressure value is the oxygen production pressure value corresponding to the first oxygen production amount, the adsorption unit 1032 produces oxygen of the first oxygen production amount according to the latest oxygen production pressure, which can improve the practicality of the oxygen production system 10.

[0170] In the embodiment of the present application, the oxygen production system 10 includes: a detection module 101, a control module 102 and an oxygen supply module 103; the control module 102 is connected to the detection module 101 and the oxygen supply module 103 respectively, and the detection module 101 detects the user's inhalation event and generates a detection signal corresponding to the inhalation event. The control module 102 determines the interval between the detection time corresponding to the latest detection signal and the current time, so that the interval between the current time and the user's latest inhalation event can be determined, and a first control signal is generated when the interval time is greater than a first time threshold, and the oxygen supply module 103 reduces the latest oxygen production amount of the oxygen production system 10 from the first oxygen production amount according to the first control signal. To the target oxygen production amount, in this way, when the user's inhalation event is not detected for more than the first time threshold, the latest oxygen production amount of the oxygen production system 10 can be reduced by the first control signal. Since the first oxygen production amount is the oxygen production amount corresponding to the first gear currently set by the oxygen production system 10, therefore, reducing the latest oxygen production amount from the first oxygen production amount to the target oxygen production amount can avoid the problem in the related art that the oxygen production system 10 continues to produce oxygen according to the oxygen production amount corresponding to the currently set gear when no user inhalation event is detected for a period of time, resulting in excessive power consumption of the oxygen production system 10. The oxygen production control method provided in the embodiment of the present application can reduce the power consumption of the oxygen production system 10 by reducing the latest oxygen production amount of the oxygen production system 10.

[0171] The algorithm and display provided herein are not inherently related to any particular computer, virtual system or other device. According to the above description, it is obvious that the structure required for constructing such a system is. In addition, the application is not directed to any specific programming language either. It should be understood that various programming languages ​​can be utilized to realize the content of the application described herein, and the description of the specific language above is for the purpose of disclosing the best mode of implementation of the application.

[0172] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0173] Similarly, it should be understood that in order to streamline the present application and aid in understanding one or more of the various inventive aspects, in the above description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting the following intention: the claimed application requires more features than the features explicitly recited in each claim. More specifically, as reflected in the claims below, the inventive aspects lie in less than all the features of the individual embodiments disclosed above. Therefore, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, with each claim itself serving as a separate embodiment of the present application.

[0174] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and in addition they may be divided into a plurality of submodules or subunits or subcomponents. Except that at least some of such features and / or processes or units are mutually exclusive, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this manner may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature providing the same, equivalent or similar purpose.

[0175] The various component embodiments of the present application can be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It should be understood by those skilled in the art that a microprocessor or a digital signal processor can be used in practice to implement some or all of the functions of some or all of the components in the sorting device according to the present application. The present application can also be implemented as a device or apparatus program for executing part or all of the methods described herein. Such a program implementing the present application can be stored on a computer-readable medium, or can be in the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0176] It should be noted that the above embodiments illustrate the present application rather than limit the present application, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation to the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of multiple such elements. The present application may be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a unit claim that lists several devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names.

[0177] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0178] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

[0179] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0180] It should be noted that the various data-related processes in the embodiments of the present application are all carried out in compliance with the corresponding data protection laws and policies of the country where the device is located, and with the authorization given by the owner of the corresponding device.

Claims

1. An oxygen production control method, characterized in that: Applied to an oxygen production system, the method comprises: Detecting an inhalation event of a user and generating a detection signal corresponding to the inhalation event; Determine the interval between the detection time corresponding to the latest detection signal and the current time, and generate a first control signal when the interval is greater than a first duration threshold; According to the first control signal, reducing the latest oxygen production amount of the oxygen production system from the first oxygen production amount to the target oxygen production amount; wherein the first oxygen production amount is the oxygen production amount corresponding to the first gear currently set by the oxygen production system; The generating a first control signal when the interval duration is greater than a first duration threshold comprises: When the interval duration is greater than the first duration threshold and the interval duration is less than the second duration threshold, the oxygen production system is reduced from the first gear to the second gear, and a first sub-signal corresponding to the second gear is generated; The step of reducing the latest oxygen production amount of the oxygen production system from the first oxygen production amount to the target oxygen production amount according to the first control signal includes: According to the first sub-signal, the latest oxygen production amount is reduced from the first oxygen production amount to a second oxygen production amount corresponding to the second gear.

2. The oxygen production control method according to claim 1, characterized in that: The generating a first control signal when the interval duration is greater than a first duration threshold comprises: When the interval duration is greater than the second duration threshold, generating a second sub-signal; The step of reducing the latest oxygen production amount of the oxygen production system from the first oxygen production amount to the target oxygen production amount according to the first control signal includes: According to the second sub-signal, the latest oxygen production amount is reduced from the second oxygen production amount to zero.

3. The oxygen production control method according to any one of claims 1-2, characterized in that: The method further comprises: When the interval duration is less than a third duration threshold, generating a second control signal corresponding to the first gear; wherein the third duration threshold is less than the first duration threshold; According to the second control signal, the first oxygen production amount is determined as the latest oxygen production amount, and oxygen is delivered to the user according to the oxygen flow rate corresponding to the first gear.

4. The oxygen production control method according to claim 3, characterized in that: The step of determining the first oxygen production amount as the latest oxygen production amount according to the second control signal includes: According to the second control signal, the latest oxygen production pressure of the oxygen production system is determined as a target pressure value; wherein the target pressure value is the oxygen production pressure value corresponding to the first oxygen production amount; The first oxygen production amount of oxygen is produced according to the latest oxygen production pressure.

5. The oxygen production control method according to claim 1, characterized in that: The detecting of the user's inhalation event and generating a detection signal corresponding to the inhalation event includes: Sampling the user's inhalation action according to a preset sampling period; When the number of inhalation actions sampled is greater than a preset number threshold, it is determined that an inhalation event of the user is detected, and a detection signal corresponding to the inhalation event is generated; wherein the preset number threshold is determined according to the breathing frequency of the user.

6. The oxygen production control method according to claim 5, characterized in that: The sampling of the user's inhalation action according to a preset sampling period includes: According to a preset sampling period, the gas pressure value at the target position is detected, and the target pressure difference at the target position is determined according to the gas pressure value and the atmospheric pressure value; wherein the target position is the gas delivery position where the oxygen production system delivers oxygen to the user; A first difference is determined according to the target pressure difference and the basic pressure difference, and when an absolute value of the first difference is greater than a preset pressure difference threshold, it is determined that an inhalation action of the user is sampled; wherein the basic pressure difference is a pressure difference calibration value when the target position is within a preset time interval after the oxygen generation system supplies oxygen to the user.

7. An oxygen production system, characterized in that: The oxygen production system comprises a detection module, a control module and an oxygen supply module; the control module is connected to the detection module and the oxygen supply module respectively; The detection module is used to detect the user's inhalation event, generate a detection signal corresponding to the inhalation event, and send the detection signal to the control module; The control module is used to determine the interval between the detection time corresponding to the latest detection signal and the current time, and generate a first control signal when the interval is greater than a first time threshold, and send the first control signal to the oxygen supply module; The oxygen supply module is used to reduce the latest oxygen production amount of the oxygen production system from the first oxygen production amount to the target oxygen production amount according to the first control signal; wherein the first oxygen production amount is the oxygen production amount corresponding to the first gear currently set by the oxygen production system; The control module is specifically used for: When the interval duration is greater than the first duration threshold and the interval duration is less than the second duration threshold, the oxygen production system is reduced from the first gear to the second gear, and a first sub-signal corresponding to the second gear is generated; The oxygen supply module is specifically configured to reduce the latest oxygen production amount from the first oxygen production amount to a second oxygen production amount corresponding to the second gear according to the first sub-signal.

8. The oxygen production system according to claim 7, characterized in that: The control module is also specifically used for: When the interval duration is greater than the second duration threshold, generating a second sub-signal; The oxygen supply module is further specifically configured to reduce the latest oxygen production amount from the second oxygen production amount to zero according to the second sub-signal.

9. The oxygen production system according to any one of claims 7-8, characterized in that: The control module is further configured to generate a second control signal corresponding to the first gear when the interval duration is less than a third duration threshold; wherein the third duration threshold is less than the first duration threshold; The oxygen supply module is further configured to, according to the second control signal, determine the first oxygen production amount as the latest oxygen production amount, and deliver oxygen to the user according to the oxygen flow rate corresponding to the first gear.

10. The oxygen production system according to claim 9, characterized in that: The oxygen supply module includes a pressure control unit and an adsorption unit; the control module is connected to the pressure control unit; the pressure control unit is also connected to the adsorption unit; The pressure control unit is used to determine the latest oxygen production pressure of the oxygen production system as a target pressure value according to the second control signal; wherein the target pressure value is the oxygen production pressure value corresponding to the first oxygen production amount; The adsorption unit is used to produce the first oxygen production amount of oxygen according to the latest oxygen production pressure.

11. The oxygen production system according to claim 7, characterized in that: The detection module is specifically used for: Sampling the user's inhalation action according to a preset sampling period; When the number of inhalation actions sampled is greater than a preset number threshold, it is determined that an inhalation event of the user is detected, and a detection signal corresponding to the inhalation event is generated; wherein the preset number threshold is determined according to the breathing frequency of the user.

12. The oxygen production system according to claim 11, characterized in that: The oxygen production system further comprises a gas pipeline, a first end of which is connected to the oxygen supply module and the detection module respectively, and a second end of which is connected to the user; the detection module is further used for: According to a preset sampling period, the gas pressure value in the gas pipeline is detected, and the corresponding target pressure difference in the gas pipeline is determined according to the gas pressure value and the atmospheric pressure value; A first difference is determined according to the target pressure difference and the basic pressure difference, and when the absolute value of the first difference is greater than a preset pressure difference threshold, it is determined that an inhalation action of the user is sampled; wherein the basic pressure difference is a pressure difference calibration value in the gas pipeline within a preset time interval after the oxygen production system supplies oxygen to the user.

Images