Oxygen production control method and oxygen production system

Abstract

The invention relates to an oxygen generation control method and an oxygen generation system, and relates to the technical field of oxygen generation, the oxygen generation control method is applied to the oxygen generation system, and the method comprises the following steps: detecting an inspiration event of a user, and generating a detection signal corresponding to the inspiration event; the interval duration between the detection time corresponding to the latest detection signal and the current time is determined, and when the interval duration represents that the inspiration event is detected again, a second control signal is generated; according to the second control signal, the latest oxygen production amount of the oxygen production system is restored to the first oxygen production amount from the target oxygen production amount, and oxygen is conveyed to the user according to the oxygen flow corresponding to the first gear; the first oxygen production amount is the oxygen production amount corresponding to the first gear of the oxygen production system; the target oxygen generation amount is the oxygen generation amount corresponding to the set gear lower than the first gear or the target oxygen generation amount is zero. After the oxygen production system reduces the oxygen production amount, when the user inspiration event is detected again, the oxygen is conveyed to the set gear to continue to be conveyed to the user, and the practicability of the oxygen production control method is improved.

Description

[0001] This application is a divisional application submitted to the China Patent Office on December 6, 2023, with application number 2023116726154, and the name of the invention is "Oxygen production control method and oxygen production system". Technical Field

[0002] 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

[0003] Oxygen concentrators utilize the selective adsorption properties of molecular sieves, powered by compressors, to separate nitrogen from oxygen in the air, thereby producing high-concentration oxygen. Examples include household or medical oxygen concentrators and portable oxygen concentrators.

[0004] In related technologies, oxygen production systems can provide a certain amount of oxygen to users according to a set gear when detecting a user's inhalation event. 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.

[0005] However, the oxygen production system of the related technology 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

[0006] 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.

[0007] The technical solution of this application is as follows:

[0008] 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. The method includes:

[0009] Detecting an inhalation event of a user and generating a detection signal corresponding to the inhalation event;

[0010] Determine the interval between the detection time corresponding to the latest detection signal and the current time, and generate a first control signal if the interval is greater than a first duration threshold;

[0011] According to the first control signal, the latest oxygen production capacity of the oxygen production system is reduced from a first oxygen production capacity to a target oxygen production capacity; wherein the first oxygen production capacity is the oxygen production capacity corresponding to the first gear currently set for the oxygen production system.

[0012] Optionally, generating a first control signal when the interval duration is greater than a first duration threshold includes:

[0013] When the interval duration is greater than the first duration threshold and less than the second duration threshold, the oxygen production system is lowered from the first gear to the second gear, and a first sub-signal corresponding to the second gear is generated;

[0014] 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:

[0015] 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.

[0016] Optionally, generating a first control signal when the interval duration is greater than a first duration threshold includes:

[0017] generating a second sub-signal when the interval duration is greater than the second duration threshold;

[0018] 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:

[0019] According to the second sub-signal, the latest oxygen production amount is reduced from the second oxygen production amount to zero.

[0020] Optionally, the method further includes:

[0021] 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;

[0022] 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.

[0023] Optionally, determining the first oxygen production amount as the latest oxygen production amount according to the second control signal includes:

[0024] 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;

[0025] The first oxygen production amount of oxygen is produced according to the latest oxygen production pressure.

[0026] Optionally, detecting an inhalation event of the user and generating a detection signal corresponding to the inhalation event includes:

[0027] sampling the user's inhalation action according to a preset sampling period;

[0028] 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, and a detection signal corresponding to the inhalation event is generated; wherein the preset number threshold is determined according to the breathing rate of the user.

[0029] Optionally, sampling the user's inhalation action according to a preset sampling period includes:

[0030] detecting a gas pressure value at a target location according to a preset sampling period, and determining a target pressure difference at the target location according to the gas pressure value and the atmospheric pressure value; wherein the target location is a gas delivery location where the oxygen production system delivers oxygen to the user;

[0031] A first difference is determined based on the target pressure difference and a base 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 has been sampled; wherein the base pressure difference is a pressure difference calibration value at the target position within a preset time interval after the oxygen generation system supplies oxygen to the user.

[0032] According to a second aspect of an embodiment of the present application, an oxygen production system is provided, 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;

[0033] The detection module is used to detect an inhalation event of the user, generate a detection signal corresponding to the inhalation event, and send the detection signal to the control module;

[0034] The control module is configured to determine a time interval between a detection time corresponding to the latest detection signal and a current time, and generate a first control signal when the time interval is greater than a first time threshold, and send the first control signal to the oxygen supply module;

[0035] The oxygen supply module is configured to reduce the latest oxygen production capacity of the oxygen production system from a first oxygen production capacity to a target oxygen production capacity according to the first control signal; wherein the first oxygen production capacity is the oxygen production capacity corresponding to the first gear currently set for the oxygen production system.

[0036] Optionally, the control module is specifically configured to:

[0037] When the interval duration is greater than the first duration threshold and less than the second duration threshold, the oxygen production system is lowered from the first gear to the second gear, and a first sub-signal corresponding to the second gear is generated;

[0038] 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.

[0039] Optionally, the control module is further configured to:

[0040] generating a second sub-signal when the interval duration is greater than the second duration threshold;

[0041] The oxygen supply module is further configured to reduce the latest oxygen production amount from the second oxygen production amount to zero according to the second sub-signal.

[0042] 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;

[0043] The oxygen supply module is further configured to, based on 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.

[0044] 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;

[0045] The pressure control unit is configured 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;

[0046] The adsorption unit is configured to produce the first oxygen production amount of oxygen according to the latest oxygen production pressure.

[0047] Optionally, the detection module is specifically used to:

[0048] sampling the user's inhalation action according to a preset sampling period;

[0049] 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, and a detection signal corresponding to the inhalation event is generated; wherein the preset number threshold is determined according to the breathing rate of the user.

[0050] Optionally, the oxygen production system further includes a gas pipeline, a first end of the gas pipeline being connected to the oxygen supply module and the detection module respectively, and a second end of the gas pipeline being connected to the user; the detection module is further configured to:

[0051] Detecting the gas pressure value in the gas pipeline according to a preset sampling period, and determining the corresponding target pressure difference in the gas pipeline according to the gas pressure value and the atmospheric pressure value;

[0052] A first difference is determined based on 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 has been sampled; wherein the basic pressure difference is a pressure difference calibration value in the gas transmission pipeline within a preset time interval after the oxygen production system supplies oxygen to the user.

[0053] The technical solutions provided by the embodiments of this application bring at least the following beneficial effects:

[0054] In an embodiment of the present application, an inhalation event of a user is detected and a detection signal corresponding to the inhalation event is generated. The interval between the detection time corresponding to the most recent detection signal and the current time is determined. In this way, the interval between the current time and the most recent inhalation event of the user can be determined. When the interval is greater than a first time threshold, a first control signal is generated. Based on the first control signal, the latest oxygen production rate of the oxygen production system is reduced from a first oxygen production rate to a target oxygen production rate. In this way, when no inhalation event of the user is detected for a period exceeding the first time threshold, the latest oxygen production rate of the oxygen production system can be reduced by the first control signal. Since the first oxygen production rate is the oxygen production rate corresponding to the first gear currently set for the oxygen production system, reducing the latest oxygen production rate from the first oxygen production rate to the target oxygen production rate can avoid the problem in the related art where the oxygen production system continues to produce oxygen at the oxygen production rate corresponding to the currently set gear even if no inhalation event of the user is detected for a period of time, 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 rate of the oxygen production system.

[0055] 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

[0056] The drawings herein are incorporated into and constitute a part of the specification, illustrate 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.

[0057] Figure 1 This is one of the step flow charts of an oxygen production control method according to an exemplary embodiment;

[0058] Figure 2 This is a second step flow chart of an oxygen production control method according to an exemplary embodiment;

[0059] Figure 3 This is one of the structural schematic diagrams of an oxygen production system according to an exemplary embodiment;

[0060] Figure 4 This is a second structural diagram of an oxygen production system according to an exemplary embodiment;

[0061] Figure 5 This is the third structural schematic diagram of an oxygen production system according to an exemplary embodiment.

[0062] Reference numerals:

[0063] 10- oxygen production system; 101- detection module; 102- control module; 103- oxygen supply module; 104- gas transmission pipeline; 1031- pressure control unit; 1032- adsorption unit; 1033- oxygen output unit. DETAILED DESCRIPTION

[0064] In order to enable ordinary people in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0065] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the numbers used in this manner are 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 apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0066] 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:

[0067] Step S1 : detecting an inhalation event of a user and generating a detection signal corresponding to the inhalation event.

[0068] In the embodiment of the present application, the oxygen concentrator 10 can be a household or medical oxygen concentrator, or a portable oxygen concentrator, etc. The oxygen concentrator 10 can adopt pulse oxygen supply technology, which is characterized by providing oxygen to the user only when an inhalation event of the user is detected. The oxygen concentrator 10 can be connected to an external power supply and powered by the external power supply. The oxygen concentrator 10 itself can also include a battery and be powered by the battery. Among them, when the oxygen concentrator 10 is powered by a battery, if oxygen is continuously produced at a set gear, it will generate high power consumption, resulting in unnecessary battery power consumption, thereby shortening the user's effective usage time.

[0069] In an embodiment of the present application, the oxygen production system 10 can detect a user's inhalation event by detecting changes in pressure or flow in the gas pipeline 104. Specifically, the pressure difference between the internal gas pipeline 104 and the external atmospheric pressure can be detected. When a negative pressure is detected 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 has been detected. Alternatively, a constant continuous airflow can be delivered in the gas pipeline 104, and the oxygen production system 10 can detect the airflow velocity at both the inlet and outlet of the gas pipeline 104. When the difference in the airflow velocity at both ends reaches a preset velocity threshold, it is determined that the user's inhalation event has been detected. This is merely an example, and the embodiments of the present application are not limited thereto.

[0070] Optionally, step S1 may include the following steps:

[0071] Step S11 : sampling the user's inhalation action according to a preset sampling period.

[0072] In the embodiment of the present application, the preset sampling period represents the time interval between two samplings, for example, 2 milliseconds (ms). The oxygen production system 10 samples the user's inhalation action at a certain time interval. The user's inhalation action can be sampled by referring to the method for detecting changes in pressure or flow in the gas pipeline 104 in the aforementioned embodiment.

[0073] Optionally, step S11 may include the following steps:

[0074] 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.

[0075] In the embodiment of the present application, the gas pipeline 104 in the oxygen production system 10 is used to connect to a user and deliver oxygen to the user, and the target location may be the pipeline outlet of the gas pipeline 104. The target location may be the outlet of the gas pipeline 104 on the side close to the user, or may be the outlet of the gas pipeline 104 on the side close to the oxygen production system 10, which is not limited in the embodiment of the present application.

[0076] In the embodiment of the present application, when a user inhales, a pressure differential is generated in the gas pipeline 104 of the oxygen production system 10. The oxygen production system 10 can detect the gas pressure value at a target location at regular intervals according to a preset sampling cycle, and then compare the acquired gas pressure value with the atmospheric pressure value corresponding to the current environment of the oxygen production system 10 to determine the pressure differential at the target location. The target pressure differential can be obtained by subtracting the gas pressure value from the atmospheric pressure value.

[0077] Step S11b: determining a first difference based on the target pressure difference and the base pressure difference, and determining that an inhalation action of the user has been sampled when the absolute value of the first difference is greater than a preset pressure difference threshold; wherein the base pressure difference is a pressure difference calibration value at the target position within a preset time interval after the oxygen production system 10 supplies oxygen to the user.

[0078] 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 can be the stable pressure difference in the gas pipeline 104 of the oxygen production system 10 during non-oxygen supply time. The oxygen production system 10 can perform real-time calibration of the basic pressure difference. Specifically, the oxygen production system 10 can 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 based on the stable pressure difference within a preset time interval. The pressure difference calibration value can be calculated by taking the average or median of the stable pressure differences within the preset time interval to serve as the basic pressure difference. The preset time interval can be determined according to actual application requirements. For example, the average of the stable pressure differences in the gas pipeline 104 of the oxygen production system 10 within 10 seconds can be used as the basic pressure difference.

[0079] In the embodiment of the present application, each time the oxygen production system 10 obtains the target pressure differential at the target position, it can compare the target pressure differential with the base pressure differential at the target position, thereby determining the pressure differential change at the target position, i.e., the first difference. The target pressure differential can be subtracted from the base pressure differential to obtain the first difference, and the first difference can be a negative value. The preset pressure differential threshold can be a positive value, and the actual value can be determined according to application requirements. The embodiment of the present application does not impose any restrictions on this. The oxygen production system 10 can compare the absolute value of the first difference with the preset pressure differential threshold. If it is greater than the preset pressure differential threshold, valid data is recorded, i.e., a user's inhalation action is determined to be sampled. If it is not greater than the preset pressure differential threshold, the target pressure differential sampled this time is invalid data.

[0080] For example, the first difference obtained by subtracting the target pressure difference from the base pressure difference is -30 Pa (Pa), and the preset pressure difference threshold is set to 20 Pa (Pa). If the absolute value of the first difference is greater than the preset pressure difference threshold, it can be determined that an inhalation action of the user has been sampled.

[0081] In the embodiment of the present application, the gas pressure value at the target location is detected according to a preset sampling period, and a target pressure differential at the target location is determined based on the gas pressure value and the atmospheric pressure value. Since the target location is the gas delivery location 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 location and the atmospheric pressure value. A first difference is determined based on the target pressure differential and the base pressure differential. When the absolute value of the first difference is greater than a preset pressure differential threshold, it is determined that a single inhalation action of the user has been sampled. In this way, the change in the pressure differential at the target location, i.e., the first difference, and the relationship between the first difference and the preset pressure differential threshold can be determined, thereby determining whether valid data has been sampled, i.e., whether a single inhalation action of the user has been sampled. Since the base pressure differential is a calibrated pressure differential value at the target location 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 actions.

[0082] 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 rate of the user.

[0083] In an embodiment of the present application, a preset number threshold can be dynamically set according to the user's respiratory rate, so that the oxygen generation system 10's detection process of the user's inhalation event is more adapted to the user, thereby making the detection signal corresponding to the inhalation event more accurate. Specifically, for users with a slow respiratory rate, the actual value of the preset number threshold can be increased, and for users with a low respiratory rate, the preset number threshold can be reduced. This can enable users with a high respiratory rate to be triggered more quickly and users with a low respiratory rate to be determined more stably. For example, when the respiratory rate is less than or equal to 20 times / minute, the preset number threshold is set to 5 times. When the respiratory rate is greater than 20 times / minute, the preset number threshold is set to 3 times. This is only an example, and the embodiments of the present application do not limit this.

[0084] In this embodiment of the present application, an inhalation event can be determined by whether the number of inhalations by the user exceeds a preset threshold. Specifically, if the number of sampled inhalations by the user exceeds a preset threshold, an inhalation event is detected. The detection signal corresponding to the inhalation event indicates the detection of the inhalation event. The detection time may include the time of detection of the inhalation event. Specifically, the detection time may be the sampling time of the user's most recent inhalation.

[0085] In an 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.

[0086] 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.

[0087] In the embodiments of the present application, the latest detection signal may be the detection signal corresponding to the user's most recent inhalation event. The detection time corresponding to the detection signal may be the time the detection signal was generated, or may be the time of detection of the user's most recent inhalation action within the inhalation event corresponding to the detection signal. This is merely an example and is not intended to limit the present embodiments.

[0088] In this embodiment of the present application, the interval between the detection time corresponding to the most recent detection signal and the current time can be determined to determine the interval between the user's most recent inhalation event and the current time. If this interval is greater than a pre-set first duration threshold, it indicates that the oxygen production system 10 has not detected the user's inhalation event for a period exceeding the first duration threshold. To reduce the power consumption of the oxygen production system 10, a first control signal can be used to control the oxygen production rate to be reduced. This avoids the situation where the oxygen production system 10 continues to produce oxygen at the original rate even if no user inhalation event is detected for a certain period of time, resulting in higher power consumption. The first control signal may include a target oxygen production rate.

[0089] Step S3: reducing the latest oxygen production capacity of the oxygen production system 10 from the first oxygen production capacity to the target oxygen production capacity according to the first control signal; wherein the first oxygen production capacity is the oxygen production capacity corresponding to the first gear currently set by the oxygen production system 10.

[0090] In the embodiment of the present application, the oxygen production system 10 may include multiple gears, and different gears indicate different oxygen supply amounts to the user by the oxygen production system 10. Accordingly, different gears correspond to different oxygen production amounts. For example, the oxygen production system 10 may include gears 1 to 5, and higher gears correspond to higher oxygen supply amounts, and thus higher oxygen production amounts. The first gear currently set to the oxygen production system 10 represents the gear originally set to the oxygen production system 10 before the operation of reducing the latest oxygen production amount is performed. The first gear may be the lowest gear, the highest gear, or other gears, and the embodiment of the present application does not impose any limitation on this.

[0091] In the embodiment of the present application, the target oxygen production capacity may be the oxygen production capacity corresponding to a setting gear of the oxygen production system 10 that is lower than the first gear. Alternatively, the target oxygen production capacity may be zero, indicating that the oxygen production system 10 stops producing oxygen and enters a standby state. When the oxygen production system 10 enters the standby state, the hardware related to the oxygen production process may stop operating, and only the unit for detecting the user's inhalation events may be retained.

[0092] 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 needing to be produced by the oxygen production system 10 is reduced, the power consumption generated by the oxygen production system 10 is also reduced.

[0093] Optionally, step S2 may include the following steps:

[0094] Step S21: When the interval duration is greater than the first duration threshold and less than the second duration threshold, the oxygen production system 10 is lowered from the first gear to the second gear, and a first sub-signal corresponding to the second gear is generated.

[0095] Step S3 may include the following steps:

[0096] Step S31: 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.

[0097] In the embodiment of the present application, the second duration threshold is a set value greater than the first duration threshold. For example, if the first duration threshold is 1 minute (min), the second duration threshold can be 5 minutes. If the interval duration is greater than the first duration threshold and less than the second duration threshold, it indicates that the oxygen production system 10 has not yet detected the user's inhalation event. To reduce the power consumption of the oxygen production system 10, the set gear of the oxygen production system 10 can be lowered, that is, from the first gear to the second gear. 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. This embodiment of the present application is not limited to this.

[0098] In the embodiment of the present application, the first sub-signal corresponding to the second gear position may include a second oxygen production capacity corresponding to the second gear position. The oxygen production system 10 may determine the latest oxygen production capacity of the oxygen production system 10 as the second oxygen production capacity based on the first sub-signal, thereby reducing the latest oxygen production capacity from the first oxygen production capacity to the second oxygen production capacity corresponding to the second gear position.

[0099] 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, the oxygen production system 10 can respond quickly to resume oxygen supply to the user.

[0100] Optionally, step S2 may include the following steps:

[0101] Step S22: generating a second sub-signal when the interval duration is greater than the second duration threshold.

[0102] Step S3 may include the following steps:

[0103] Step S32: reducing the latest oxygen production amount from the second oxygen production amount to zero according to the second sub-signal.

[0104] 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 can be reduced to zero, so that the oxygen production system 10 enters the standby state.

[0105] In this embodiment of the present application, the second sub-signal may include information indicating that the most recent oxygen production volume is zero. Based on the second sub-signal, the oxygen production system 10 may determine the most recent oxygen production volume as zero, thereby stopping the oxygen production function. After the oxygen production system 10 enters standby mode, the hardware related to the oxygen production process may cease operation, leaving only the unit for detecting the user's inhalation events. This minimizes power consumption while retaining the ability to detect the user's inhalation events. Upon detecting the user's inhalation event again, the oxygen production system 10 may resume oxygen production and supply oxygen to the user.

[0106] 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.

[0107] Optional, see Figure 2 , the oxygen production control method may further include the following steps:

[0108] 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.

[0109] In this embodiment of the present application, the third duration threshold represents the effective interval duration of the user's inhalation event. If the interval between the detection time corresponding to the most recent detection signal and the current time is less than the third duration threshold, it indicates that the oxygen concentrator 10 has detected a valid user inhalation event. The oxygen concentrator 10 then needs to produce and supply oxygen to the user according to the currently set gear, i.e., the first gear. The second control signal may include a first oxygen production amount corresponding to the first gear, as well as the oxygen flow rate supplied to the user in the first gear. After the oxygen concentrator 10 is lowered from the first gear to the second gear, if the oxygen concentrator 10 detects the user's inhalation event again and generates a corresponding detection signal, based on the relationship between the detection time of the detection signal and the third duration threshold, if it is less than the third duration threshold, it indicates that the oxygen concentrator 10 has re-detected the user's inhalation event. The oxygen concentrator 10 may then be controlled to return to the original set gear, i.e., the first gear, and then produce and supply oxygen to the user according to the first gear.

[0110] The third time threshold is set to be smaller than the first time threshold. In actual applications, the third time threshold can be determined based on a preset sampling period of the oxygen production system 10 for the user's inhalation action. For example, if the oxygen production system 10 samples the pressure difference of the gas transmission pipeline 104 every 2 ms and the preset number threshold is 5 times, the third time threshold can be set to 30 ms. This is merely an example and is not limited in the present embodiment.

[0111] Step S5: 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.

[0112] In the embodiment of the present application, the oxygen production system 10 can produce oxygen using the pressure swing adsorption principle. The pressure swing adsorption principle utilizes the selective adsorption characteristics of zeolite molecular sieves, employing a cycle of pressurized adsorption and reduced pressure desorption, allowing compressed air to alternately enter an 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 determines the operating pressure of the oxygen production system 10 based on the first oxygen production capacity indicated by the third sub-signal, thereby producing the first oxygen production capacity. Then, oxygen is delivered to the user through the oxygen production system 10's gas pipeline 104 according to the oxygen flow rate corresponding to the first gear indicated by the fourth sub-signal.

[0113] Optionally, step S5 may include the following steps:

[0114] Step S51: According to the second control signal, the latest oxygen production pressure of the oxygen production system 10 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.

[0115] Step S52: producing the first oxygen production amount of oxygen according to the latest oxygen production pressure.

[0116] 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, based on 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 first oxygen production volume of oxygen is produced through the pressure swing adsorption principle.

[0117] 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. 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.

[0118] In the embodiment of the present application, when the interval duration is less than the third duration threshold, a 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. Based on the second control signal, the first oxygen production amount is determined as the latest oxygen production amount, and oxygen is delivered to the user at 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 according to the second control signal and deliver oxygen to the user at the oxygen flow rate corresponding to the first gear, thereby improving the practicality of the oxygen production control method of the embodiment of the present application.

[0119] 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 between the detection time corresponding to the latest detection signal and the current time is determined, so that the interval between the current time and the user's latest inhalation event can be determined, and when the interval time is greater than a 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 no inhalation event of the user is 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 capacity of the oxygen production system 10 is reduced. Since the first oxygen production capacity is the oxygen production capacity corresponding to the first gear currently set for the oxygen production system 10, reducing the latest oxygen production capacity from the first oxygen production capacity to the target oxygen production capacity 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 capacity 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 capacity of the oxygen production system 10.

[0120] Figure 3 FIG. 1 is a structural diagram 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;

[0121] 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;

[0122] The control module 102 is configured to determine a time interval between a detection time corresponding to the latest detection signal and a current time, and generate a first control signal when the time interval is greater than a first time threshold, and send the first control signal to the oxygen supply module 103;

[0123] The oxygen supply module 103 is configured to reduce the latest oxygen production capacity of the oxygen production system 10 from a first oxygen production capacity to a target oxygen production capacity according to the first control signal; wherein the first oxygen production capacity is the oxygen production capacity corresponding to the first gear currently set by the oxygen production system 10.

[0124] 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. 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, and 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 another inhalation event, it sends the detection signal of the inhalation event 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 more accurately determine the interval between the user's most recent inhalation event and the current time based on the latest detection signal.

[0125] Optionally, the detection module 101 is specifically configured to:

[0126] sampling the user's inhalation action according to a preset sampling period;

[0127] 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, and a detection signal corresponding to the inhalation event is generated; wherein the preset number threshold is determined according to the breathing rate of the user.

[0128] In the embodiment of the present application, the oxygen generation system 10 can detect changes in pressure or flow in the gas pipeline 104 through the detection module 101, thereby detecting the user's inhalation event. The specific method for detecting changes in pressure or flow can be referred to the relevant description of step S1 in the above embodiment and will not be repeated here.

[0129] Optionally, the oxygen production system 10 further includes a gas pipeline 104, wherein 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 configured to:

[0130] Detecting the gas pressure value in the gas pipeline 104 according to a preset sampling period, and determining the corresponding target pressure difference in the gas pipeline 104 according to the gas pressure value and the atmospheric pressure value;

[0131] A first difference is determined based on 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 has been sampled; wherein the basic pressure difference is a pressure difference calibration value in the gas delivery pipeline 104 within a preset time interval after the oxygen production system 10 supplies oxygen to the user.

[0132] In this embodiment of the present application, 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 a second end of the gas pipeline 104 is connected to a user. The oxygen supply module 103 can deliver oxygen to the user through the gas pipeline 104. The first end of the gas pipeline 104 is connected to the oxygen output unit 1033. The detection module 101 can include a differential pressure sensor. One end of the differential pressure sensor can be disposed in the gas pipeline 104 to measure the pressure within the gas pipeline 104, and the other end of the differential pressure sensor is open to the atmosphere to measure the pressure difference between the pressure within the gas pipeline 104 and atmospheric pressure. The detection module 101 can also include a control unit for processing the pressure differential detected by the differential pressure sensor according to an inhalation algorithm. Upon determining that an inhalation event has been detected by the user, the control unit generates a detection signal corresponding to the inhalation event and transmits the detection signal to the control module 102. The inhalation detection algorithm can refer to the description of steps S11-S12 in the aforementioned embodiment of the oxygen production control method and will not be further described here.

[0133] In the embodiment of the present application, the control module 102 is configured to receive a detection signal of an inhalation event sent by the detection module 101, and determine whether the user is using the oxygen production system 10 based on the detection signal. If the user is using the oxygen production system 10, the oxygen production system 10 enters an operating state; if the user is no longer using the oxygen production system, the oxygen production system 10 enters a 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.

[0134] In the embodiment of the present application, the control module 102 can set different gears of the oxygen production system 10. Different gear settings provide different initial oxygen supply amounts to the user. Specifically, the oxygen production system 10 can include multiple gears, and different gears indicate different oxygen supply amounts to the user. Accordingly, different gears correspond to different oxygen production amounts. For example, the oxygen production system 10 can include gears 1 to 5, and higher gears correspond to higher oxygen supply amounts, and thus higher oxygen production amounts.

[0135] In an embodiment of the present application, the control module 102 can determine the interval between the user's most recent inhalation event and the current time by determining the interval between the detection time corresponding to the most recent detection signal and the current time. If the interval is greater than a pre-set first time threshold, it indicates that the oxygen production system 10 has not detected the user's inhalation event for a period exceeding the first time threshold. To reduce the power consumption of the oxygen production system 10, the oxygen production rate can be reduced via a first control signal, thereby avoiding the problem of high power consumption of the oxygen production system 10 due to continued oxygen production at the original oxygen production rate when no user inhalation event is detected for a certain period of time. The control logic executed by the control module 102 can refer to the relevant description of steps S2 and S4 in the aforementioned embodiment of the oxygen production control method, and will not be repeated here.

[0136] In the embodiment of the present application, the oxygen production system 10 further includes a gas supply 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 supply pipeline 104 is connected to a user. The detection module 101 detects the gas pressure value in the gas supply pipeline 104 according to a preset sampling period, and determines a corresponding target pressure differential in the gas supply pipeline 104 based on the gas pressure value and the atmospheric pressure value. In this way, the change in the pressure differential at the target position, i.e., a first difference, and the relationship between the first difference and a preset pressure differential threshold can be determined, thereby determining whether an inhalation action of the user has been sampled. Since the basic pressure differential is a calibrated pressure differential value in the gas supply 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.

[0137] 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, thereby making the user's inhalation event determined according to the preset number threshold more accurate.

[0138] Optionally, the control module 102 is specifically configured to:

[0139] 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.

[0140] In the embodiment of the present application, after determining the interval duration corresponding to the most recent detection signal, the control module 102 may determine a control strategy based on the relationship between the interval duration and the first, second, and third duration thresholds, and generate a corresponding control signal. Specifically, if the interval duration is greater than the first duration threshold and less than the second duration threshold, indicating that the oxygen production system 10 has not yet detected an inhalation event from the user, the control module 102 may reduce the currently set gear of the oxygen production system 10 from the first gear to the second gear, generate a first sub-signal, and transmit the first sub-signal to the oxygen supply module 103, thereby controlling 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 at the second oxygen production amount.

[0141] Optionally, the control module 102 is further configured to:

[0142] When the interval duration is greater than the second duration threshold, a second sub-signal is generated.

[0143] In the embodiment of the present application, if the interval duration is greater than the second duration threshold, indicating that the oxygen production system 10 has not detected the user's inhalation event for a long period of time, the control module 102 can control the oxygen production system 10 to enter a 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 based on the second sub-signal, thereby stopping the oxygen production function of the oxygen production system 10 and reducing system power consumption.

[0144] Optionally, the control module 102 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.

[0145] In the embodiment of the present application, if the interval duration is less than the third duration threshold, it indicates that the detection module 101 has detected a valid user inhalation event. The control module 102 can then maintain the currently set gear of the oxygen production system 10 and control the oxygen supply module 103 to operate at 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, thereby controlling the oxygen supply module 103 to determine the first oxygen production amount as the latest oxygen production amount based on the second control signal and to deliver oxygen to the user at the oxygen flow rate corresponding to the first gear.

[0146] In the examples of this application, 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 during operation. The adsorption unit 1032 is used to produce a corresponding amount of oxygen based on the latest oxygen production pressure using the pressure swing adsorption principle. The oxygen output unit 1033 can be connected to a gas pipeline to supply oxygen to the user according to the currently set gear of the oxygen production system 10. The pressure swing adsorption principle can be referred to the relevant description in step S5 of the aforementioned oxygen production control method embodiment and will not be repeated here.

[0147] In the embodiment of the present application, the pressure control unit 1031 can receive a first control signal sent by the control module 102. 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 be referred to the relevant description of step S3 in the aforementioned embodiment of the oxygen production control method, and will not be repeated here.

[0148] 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.

[0149] Optionally, the oxygen supply module 103 is further configured to reduce the latest oxygen production amount from the second oxygen production amount to zero according to the second sub-signal.

[0150] Optionally, the oxygen supply module 103 is further configured to, based on 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.

[0151] In the embodiment of the present application, the pressure control unit 1031 can receive the first sub-signal sent by the control module 102. In response to the first sub-signal, the pressure control unit 1031 can adjust the outputted latest oxygen production pressure to the oxygen production pressure value corresponding to the second oxygen production capacity, so that the adsorption unit 1032 produces oxygen at the second oxygen production capacity according to the oxygen production pressure value corresponding to the second oxygen production capacity, thereby reducing the latest oxygen production capacity of the oxygen production system 10 from the first oxygen production capacity to the second oxygen production capacity corresponding to the second gear. For a specific implementation, reference can be made to the description of step S31 in the aforementioned embodiment of the oxygen production control method, and 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 of the latest oxygen production pressure to zero. That is, the pressure control unit 1031 stops working, causing the adsorption unit 1032 to also stop working, reducing the latest oxygen production capacity of the oxygen production system 10 to zero, and shutting down the oxygen production function of the oxygen production system 10. For a specific implementation, please refer to the relevant description of step S32 in the aforementioned embodiment of the oxygen production control method, and will not be repeated here.

[0153] 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 of the latest oxygen production pressure to zero. That is, the pressure control unit 1031 stops working, causing the adsorption unit 1032 to also stop working, reducing the latest oxygen production capacity of the oxygen production system 10 to zero, and shutting down the oxygen production function of the oxygen production system 10. For a specific implementation, please refer to the relevant description of step S32 in the aforementioned embodiment of the oxygen production control method, and will not be repeated here.

[0154] 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 a user inhalation event, 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.

[0155] Table 1 Oxygen production system control logic

[0156]

[0157] Referring to Table 1, if the detection module 101 does not detect a user's inhalation event for duration t1, the control module 102 can lower the set 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, causing the oxygen supply module 103 to reduce the oxygen production, thereby initially reducing system power consumption. If the detection module 101 does not detect a user's inhalation event for duration 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, thereby minimizing power consumption.

[0158] In Table 1, when the oxygen generation system 10 is in standby mode, the oxygen generation hardware in the oxygen generation system 10 ceases operation, leaving only the unit that detects the user's inhalation events in operation. When the oxygen generation system 10 detects the user's inhalation event again in the standby mode and generates a corresponding detection signal, and the detection time of the detection signal is less than the third duration threshold, it indicates that the oxygen generation system 10 has re-detected the user's inhalation event. The oxygen generation system 10 can then activate the oxygen generation function, restore the oxygen generation system 10 to a set gear, such as the first gear, and transmit a control signal, such as a second control signal corresponding to the first gear, to resume oxygen generation and deliver oxygen to the user. At this point, the power consumption of the oxygen generation system 10 is the normal power consumption in the operating mode. 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. In addition, 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.

[0159] In Table 1, if the oxygen production system 10 fails to detect a user's inhalation event for a prolonged period, the oxygen production system 10 maintains its control signal generation and transmission functions in standby mode, for example, by stopping transmission of the second control signal. This minimizes power consumption in the standby mode. This prevents excessive power consumption caused by the oxygen production system 10 retaining its oxygen production function even when the oxygen production system 10 fails to detect a user's inhalation event for a prolonged period. By controlling the control logic to lower the set gear or enter standby mode, power consumption can be reduced.

[0160] In the embodiment of the present application, when the interval duration is greater than the first duration threshold and less than the second duration 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 the latest oxygen production amount. Although the oxygen production system 10 reduces the set gear, it does not stop the oxygen production function. 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.

[0161] 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 reduces the latest oxygen production amount from the second oxygen production amount to zero according to the second sub-signal. 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.

[0162] 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 has detected a valid user inhalation event. The oxygen supply module 103 determines the first oxygen production amount as the latest oxygen production amount based on the second control signal and delivers oxygen to the user at 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 at the oxygen flow rate corresponding to the first gear, thereby improving the practicality of the oxygen production control method of the embodiment of the present application.

[0163] 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;

[0164] The pressure control unit 1031 is configured 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;

[0165] The adsorption unit 1032 is configured to produce the first oxygen production amount of oxygen according to the latest oxygen production pressure.

[0166] In the embodiment of the present application, the pressure control unit 1031 may include a compressor, and the adsorption unit 1032 may contain an adsorbent. Upon receiving a control signal from the control module 102, the pressure control unit 1031 may change the compressor speed 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 a second oxygen production volume corresponding to the second gear according to the reduced latest oxygen production pressure.

[0167] Specifically, the pressure control unit 1031 receives the first sub-signal sent by the control module 102 and, in response to the first sub-signal, reduces 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 capacity. The pressure control unit 1031 receives the second sub-signal sent by the control module 102 and, in response to the second sub-signal, controls the compressor to stop operating, thereby shutting down the oxygen production function of the oxygen production system 10.

[0168] In the embodiment of the present application, the pressure control unit 1031 receives the third sub-signal sent by the control module 102 and, in response to the third sub-signal, changes 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 capacity, i.e., the target pressure value. The adsorption unit 1032 then produces oxygen corresponding to the first oxygen production capacity of the first gear according to the reduced latest oxygen production pressure. For a specific implementation, reference may be made to the description of step S5 in the aforementioned embodiment of the oxygen production control method, and will not be repeated here.

[0169] In the embodiment of the present application, the oxygen supply module 103 further 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 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 the oxygen flow rate corresponding to the set gear indicated by the fourth sub-signal is set. Figure 5 , oxygen is delivered to the user through the gas delivery pipeline 104. A solenoid valve can be provided on the gas delivery pipeline 104, and the solenoid valve can be electrically connected to the control unit inside the oxygen output unit 1033. The control unit can open the solenoid valve in response to the fourth sub-signal, thereby supplying oxygen to the user when the user inhales.

[0170] 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.

[0171] 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. 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 no user inhalation event is detected for more than the first time threshold, the latest oxygen production amount of the oxygen production system 10 can be reduced through 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, 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 no user inhalation event is detected for a period of time, the oxygen production system 10 continues 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.

[0172] The algorithm and display provided herein are not inherently related to any particular computer, virtual system or other device. Based on the above description, it is obvious that the structure required for constructing this type of system is suitable. In addition, the application is not directed to any specific programming language. It should be understood that various programming languages can be utilized to implement the content of the application described herein, and the above description of specific languages is for the purpose of disclosing the best mode of implementation of the application.

[0173] 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.

[0174] 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, 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 an intention that the claimed application requires more features than are expressly recited in each claim. Rather, as reflected in the claims below, inventive aspects lie in less than all the features of the individual embodiments disclosed above. Accordingly, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of the present application.

[0175] 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 may be divided into multiple submodules or subunits or subcomponents. All features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed herein may be combined in any combination, except that at least some of such features and / or processes or units are mutually exclusive. Unless expressly stated otherwise, 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.

[0176] 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. Those skilled in the art will appreciate that a microprocessor or 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 performing 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.

[0177] It should be noted that the above embodiments illustrate rather than limit the present application, and that a person skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbols placed between brackets should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present application may be implemented by means of hardware comprising several different elements and by means of appropriately programmed computers. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.

[0178] Those skilled in the art will 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.

[0179] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

[0180] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

[0181] 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 they are 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; determining a time interval between a detection time corresponding to the latest detection signal and a current time, and generating a second control signal when the time interval indicates that the inhalation event has been re-detected; According to the second control signal, the latest oxygen production capacity of the oxygen production system is restored from the target oxygen production capacity to the first oxygen production capacity, and oxygen is supplied to the user according to the oxygen flow rate corresponding to the first gear; wherein the first oxygen production capacity is the oxygen production capacity corresponding to the first gear currently set by the oxygen production system; the target oxygen production capacity is the oxygen production capacity corresponding to a set gear of the oxygen production system lower than the first gear, or the target oxygen production capacity is zero.

2. The oxygen production control method according to claim 1, characterized in that: When the interval duration indicates that the inhalation event is re-detected, generating a second control signal includes: When the interval duration is less than a third duration threshold, generating the second control signal corresponding to the first gear; The step of restoring the latest oxygen production capacity of the oxygen production system from the target oxygen production capacity to the first oxygen production capacity according to the second control signal includes: According to the second control signal, the first oxygen production amount is determined as the latest oxygen production amount.

3. The oxygen production control method according to claim 2, 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.

4. 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 sampled inhalation actions 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 rate of the user.

5. The oxygen production control method according to claim 4, characterized in that: The sampling of the user's inhalation action according to a preset sampling period includes: detecting a gas pressure value at a target location according to a preset sampling period, and determining a target pressure difference at the target location according to the gas pressure value and the atmospheric pressure value; wherein the target location is a gas delivery location where the oxygen production system delivers oxygen to the user; A first difference is determined based on the target pressure difference and a base 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 has been sampled; wherein the base pressure difference is a pressure difference calibration value at the target position within a preset time interval after the oxygen generation system supplies oxygen to the user.

6. An oxygen production system, characterized in that: The oxygen production system includes 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 an inhalation event of the user, generate a detection signal corresponding to the inhalation event, and send the detection signal to the control module; The control module is configured to determine a time interval between a detection time corresponding to the latest detection signal and a current time, and when the time interval indicates that the inhalation event has been re-detected, generate a second control signal, and send the second control signal to the oxygen supply module; The oxygen supply module is configured to restore the latest oxygen production capacity of the oxygen production system from the target oxygen production capacity to a first oxygen production capacity according to the second control signal, and supply oxygen to the user according to the oxygen flow rate corresponding to the first gear; wherein the first oxygen production capacity is the oxygen production capacity corresponding to the first gear currently set for the oxygen production system; the target oxygen production capacity is the oxygen production capacity corresponding to a set gear of the oxygen production system that is lower than the first gear, or the target oxygen production capacity is zero.

7. The oxygen production system according to claim 6, characterized in that: The control module is specifically configured to generate the second control signal corresponding to the first gear when the interval duration is less than a third duration threshold; The oxygen supply module is specifically configured to determine the first oxygen production amount as the latest oxygen production amount according to the second control signal.

8. The oxygen production system according to claim 7, 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 configured 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 configured to produce the first oxygen production amount of oxygen according to the latest oxygen production pressure.

9. The oxygen production system according to claim 6, 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 sampled inhalation actions 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 rate of the user.

10. The oxygen production system according to claim 9, characterized in that: The oxygen production system further includes 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 configured to: Detecting the gas pressure value in the gas pipeline according to a preset sampling period, and determining the corresponding target pressure difference in the gas pipeline according to the gas pressure value and the atmospheric pressure value; A first difference is determined based on 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 has been sampled; wherein the basic pressure difference is a pressure difference calibration value in the gas transmission pipeline within a preset time interval after the oxygen production system supplies oxygen to the user.

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