CN109646782B - Manual pulse oxygen supply device and application method thereof - Google Patents
Manual pulse oxygen supply device and application method thereof Download PDFInfo
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- CN109646782B CN109646782B CN201811643581.5A CN201811643581A CN109646782B CN 109646782 B CN109646782 B CN 109646782B CN 201811643581 A CN201811643581 A CN 201811643581A CN 109646782 B CN109646782 B CN 109646782B
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 180
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 180
- 239000001301 oxygen Substances 0.000 title claims abstract description 180
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 230000005669 field effect Effects 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 8
- 230000000241 respiratory effect Effects 0.000 description 5
- 230000000087 stabilizing effect Effects 0.000 description 5
- 230000004807 localization Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
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- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a manual pulse oxygen supply device and an oxygen supply method, comprising a power supply, an MCU module, an oxygen supply electromagnetic valve module, a manual switch and a pulse output indicator lamp; the power supply is connected with a power supply pin of the MCU module; the oxygen supply signal output end of the MCU module is connected with the signal input end of the oxygen supply electromagnetic valve module, and the signal output end of the oxygen supply electromagnetic valve module is connected with the oxygen inlet and the oxygen outlet; the signal output end of the indicator lamp of the MCU module is connected with the signal input end of the indicator lamp; the manual switch is connected with a switch detection signal pin of the MCU module; according to the oxygen supply device, the manual trigger breathing signals are adopted through the arrangement of the manual switch, three or more trigger signals are collected, the MCU module is used for processing the manual trigger signals, the time point of the next breath is predicted, the trigger signals are automatically released, oxygen is released through the driving of the oxygen supply electromagnetic valve module, and meanwhile, the signals are synchronously corrected in use, so that the effect of synchronizing with the breath is achieved.
Description
Technical Field
The invention relates to the technical field of oxygenerators, in particular to a manual pulse oxygen supply device and a use method thereof.
Background
Pulse oxygenerator has been widely used in outdoor or mobile scenes with its efficient oxygen usage efficiency, and in reducing the cost of oxygen usage. However, the existing pulse oxygenerator generally adopts a respiration sensor to detect the respiration information of a user, and then transmits a signal to a driving device to supply oxygen. However, the current respiration sensor has high cost, and can be used for a few time, mainly including a pressure sensor, a micro-flow sensor and the like. The sensors are complex to use and low in localization, and taking a pressure detection sensor as an example, the current high-reliability sensor is not replaced by a localization product. Another disadvantage is that the oxygen tube is branched to the pressure sensor during the installation, which increases the installation process and reduces the reliability of the oxygen tube, and when the oxygen inhaler is not used properly, the respiratory signal is often not detected, which results in failure of the function, for example, when the oxygen tube is bent, the oxygen tube leaks air, and when the consistency of the sensor is wrong, based on these characteristics, the popularization and the use of the pulse oxygenerator are not facilitated.
Disclosure of Invention
Based on the above, the invention provides a manual pulse oxygen supply device and a using method thereof.
A manual pulse oxygen supply device comprises a power supply, an MCU module, an oxygen supply electromagnetic valve module, a manual switch and a pulse output indicator lamp; the power supply is connected with a power supply pin of the MCU module;
the oxygen supply signal output end of the MCU module is connected with the signal input end of the oxygen supply electromagnetic valve module, and the signal output end of the oxygen supply electromagnetic valve module is connected with the oxygen inlet and the oxygen outlet;
the signal output end of the indicator lamp of the MCU module is connected with the signal input end of the indicator lamp; the manual switch is connected with a switch detection signal pin of the MCU module.
In one embodiment, the manual switch comprises at least one of a mechanical switch, an optocoupler switch, a foot switch, an inductive switch, and a wireless switch.
In one embodiment, the oxygen supply solenoid valve module comprises a driving unit, a rectifying diode and an oxygen supply control valve, wherein an oxygen supply signal output end of the MCU module is connected with a signal input end of the driving unit through a first resistor, a signal output end of the driving unit is connected with the oxygen supply control valve and used for providing driving electric energy for the oxygen supply control valve, and the rectifying diode is connected with the oxygen supply control valve in parallel and used for counteracting reverse potential generated by the oxygen supply control valve when the signal is interrupted.
In one embodiment, the oxygen supply electromagnetic valve module comprises at least one of a field effect transistor, a high-current triode and a driving IC.
In one embodiment, the MCU module is model N76E003AT20.
In one embodiment, the indicator light comprises a second resistor and a light emitting diode, one end of the second resistor is connected with the signal output end of the indicator light of the MCU module, the other end of the second resistor is connected with the positive electrode of the light emitting diode, and the negative electrode of the light emitting diode is connected with the ground electrode.
In one embodiment, the rectifier diode is model B5819W.
According to the manual pulse oxygen supply device, through the arrangement of the manual switch, the manual trigger signal is adopted, then the MCU module is used for processing the manual trigger signal, the time point of the next breath is predicted, the trigger signal is automatically released, and the oxygen supply electromagnetic valve module is driven to release oxygen, so that the structure is simple, the cost is low, and the problem of functional failure caused by the fact that the respiratory signal cannot be detected is avoided; the device can be independently used as a functional module and can be implanted into the existing oxygenerator at will, so that the pulse function is increased, the application is enlarged, and the use efficiency of oxygen is improved.
An oxygen supply method of a manual pulse oxygen supply device,
the first step: the MCU module is powered on and started, the MCU module is reset, a built-in program is started, and the input of a manual switch signal is waited;
and a second step of: the user synchronously triggers the manual switch along with own breath and sends out at least three manual trigger signals along with own breath;
and a third step of: the MCU module receives the manual trigger signal and records the trigger time;
fourth step: the MCU module drives the oxygen supply electromagnetic valve module to release oxygen according to the manual trigger signal;
fifth step: the MCU module calculates the time difference between the last trigger time and the previous trigger time and obtains at least two first time differences;
sixth step: calculating a weighted average of at least two first time differences and storing the weighted average as a first interval time;
seventh step: the MCU module drives the oxygen supply electromagnetic valve module to automatically release oxygen according to the first interval time;
eighth step: the MCU module receives the manual trigger signal again and records the trigger time;
ninth step: the MCU module recalculates the time difference between the last trigger time and the previous trigger time and obtains at least one second time difference value;
tenth step: calculating a weighted average of the second time difference value and the first interval time and saving the weighted average as the second interval time;
eleventh step: the MCU module drives the oxygen supply electromagnetic valve module to automatically release oxygen according to the second interval time.
Twelfth step: and repeating the eighth to eleventh steps if the manual trigger signal is received again during the automatic oxygen release of the MCU module.
In one embodiment, before the ninth step, it is determined whether the oxygen supply solenoid valve module is releasing oxygen, and if so, the time difference of the trigger signal is recalculated.
In one embodiment, before the tenth step, it is determined whether the second time difference is valid, and if so, the subsequent steps are performed.
According to the manual pulse oxygen supply device, through the arrangement of the manual switch, the manual trigger breathing signals are adopted, three or more trigger signals are collected, then the MCU module is used for processing the manual trigger signals, the next breathing time point is predicted, the trigger signals are automatically released, oxygen is released through the driving of the oxygen supply electromagnetic valve module, and meanwhile, the signals are synchronously corrected in use, so that the effect of synchronizing with breathing is achieved. The square device has simple structure and low cost, and avoids the problem of functional failure caused by the fact that the respiratory signal cannot be detected.
Drawings
FIG. 1 is a circuit diagram of a manual pulse oxygen supply device according to an embodiment of the present invention;
fig. 2 is a pulse waveform analysis chart and a synchronous driving chart of an oxygen supplying method of a manual pulse oxygen supplying device according to an embodiment of the invention.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, a manual pulse oxygen supply device comprises a power supply 100, an MCU module 200, an oxygen supply solenoid valve module 300, a manual switch 400 and a pulse output indicator lamp 600; the power supply 100 is connected with a power pin of the MCU module 200;
the oxygen supply signal output end of the MCU module 200 is connected with the signal input end of the oxygen supply electromagnetic valve module 300, and the signal output end of the oxygen supply electromagnetic valve module 300 is connected with an oxygen inlet and an oxygen outlet;
the signal output end of the indicator lamp of the MCU module 200 is connected with the signal input end of the indicator lamp 600; the manual switch 400 is connected with a switch detection signal pin of the MCU module 200.
When oxygen inhalation is needed, the manual switch 400 sends a trigger signal, and when the MCU module 200 detects the trigger signal sent by the manual switch 400, a drive signal is immediately output to the oxygen supply electromagnetic valve module 300, and the oxygen supply electromagnetic valve module 300 drives the oxygen inlet and the oxygen outlet to act, so that a certain amount of oxygen is output.
When there is a repeated trigger signal, the MCU module 200 analyzes the time of the trigger signal, predicts the arrival of the next pulse time, and the oxygen supply solenoid valve module 300 drives the oxygen inlet and outlet to act, so as to automatically output a certain amount of oxygen. When the trigger signal of the manual switch 400 is received again, the driving signal is output by the MCU module 200 according to the trigger signal of the manual switch 400, and if the trigger signal of the manual switch 400 is not received within a time delay interval, the automatic pulse function is automatically switched to.
When the oxygen supply device is in the automatic pulse function, the time of the oxygen supply device is immediately synchronous with the trigger signal of the manual switch 400 after receiving the trigger signal of the manual switch 400.
In this way, the manual pulse oxygen supply device adopts the manual trigger signal through the arrangement of the manual switch 400, processes the manual trigger signal by the MCU module 200, predicts the time point of the next breath, automatically releases the trigger signal, releases oxygen through driving the oxygen supply electromagnetic valve module 300, has simple structure and low cost, and avoids the problem of functional failure caused by the fact that the respiratory signal is not detected; the device can be independently used as a functional module and can be implanted into the existing oxygenerator at will, so that the pulse function is increased, the application is enlarged, and the use efficiency of oxygen is improved.
Further, the manual switch 400 includes at least one of a mechanical switch, an optocoupler switch, a foot switch, an inductive switch, and a wireless switch.
Further, the oxygen supply solenoid valve module 300 includes a driving unit 302, a rectifying diode 301, and an oxygen supply control valve 303, where an oxygen supply signal output end of the mcu module 200 is connected to a signal input end of the driving unit 302 through a first resistor 201, a signal output end of the driving unit 302 is connected to the oxygen supply control valve 303, and is used to provide driving electric energy for the oxygen supply control valve 303, and the rectifying diode 301 is connected in parallel to the oxygen supply control valve 303, and is used to offset a reverse potential generated by the oxygen supply control valve 303 when the signal is interrupted.
After receiving the trigger signal of the manual switch 400, the MCU module 200 sends a driving signal to the driving unit 302 through the first resistor 201, and the driving unit 302 sends the driving signal to the oxygen supply control valve 303, and the oxygen supply control valve 303 controls the oxygen inlet and the oxygen outlet to output oxygen for people to use.
Thus, the MCU module 200 controls the opening or closing of the oxygen supply control valve 303 by controlling the driving unit 302 to open or close, so that the oxygen inlet and the oxygen outlet output oxygen, the structure is simple, the use is convenient, and meanwhile, the setting of the rectifier diode 301 effectively protects the oxygen supply control valve 303 and prolongs the service life of components.
Further, the oxygen supply solenoid valve module 300 includes at least one of a field effect transistor, a high current triode, and a driving IC.
Further, the model number of the MCU module 200 is N76E003AT20.
Further, the indicator lamp 600 includes a second resistor 602 and a light emitting diode 601, one end of the second resistor 602 is connected to the signal output end of the indicator lamp of the MCU module 200, the other end is connected to the positive electrode of the light emitting diode 601, and the negative electrode of the light emitting diode 601 is connected to the ground electrode.
Thus, when the MCU module 200 transmits a driving signal to the oxygen supply solenoid valve module 300, the light emitting diode 601 emits light to prompt a user to output oxygen so that the user can use the oxygen in time, and waste is avoided.
Further, the light emitting diode 301 is of the type B5819W.
The power supply 100 includes: the voltage stabilizing chip 101, the third resistor 102, the fourth resistor 103, the fifth resistor 105, the first capacitor 104, the second capacitor 106 and the third capacitor 107, wherein a signal input end of the voltage stabilizing chip 101 is connected with an external power supply, a signal output end of the voltage stabilizing chip 101 is connected with a pin VDD of the MCU module 200 to provide 5V power supply voltage for the MCU module 200, one end of the third resistor 102 is connected with a common connection point between the signal output end of the voltage stabilizing chip 101 and the pin VDD of the MCU module 200, the other end of the third resistor 102 is connected with one end of the fourth resistor 103, the other end of the fourth resistor 103 is connected with a ground electrode, the first capacitor 104 is connected with the third resistor 102 and the fourth resistor 103 in parallel, one end of the fifth resistor 105 is connected with a common connection point between the signal output end of the voltage stabilizing chip 101 and the pin VDD of the MCU module 200, the other end of the second capacitor 106 is connected with one end of the second capacitor 106, the other end of the second capacitor 106 is connected with the ground electrode, and the third capacitor 107 is connected in parallel in a circuit.
Further, the MCU module 200 further includes a sixth resistor 202, one end of the sixth resistor 202 is connected to the pin P1.4 of the MCU module 200, and the other end is connected to a 5V power supply.
As shown in fig. 2, in an oxygen supply method of a manual pulse oxygen supply device,
the first step: the MCU module 200 is powered on and started, the MCU module 200 is reset, a built-in program is started, and the signal input of the manual switch 400 is waited;
and a second step of: the user synchronously triggers the manual switch along with own breath and sends out at least three manual trigger signals along with own breath
And a third step of: the MCU module 200 receives the manual trigger signal and records the trigger time;
fourth step: the MCU module 200 drives the oxygen supply electromagnetic valve module 300 to release oxygen according to the manual trigger signal;
fifth step: the MCU module 200 calculates the time difference between the last trigger time and the previous trigger time and obtains at least two first time differences;
sixth step: calculating a weighted average of at least two first time differences and storing the weighted average as a first interval time;
seventh step: the MCU module 200 drives the oxygen supply electromagnetic valve module 300 to automatically release oxygen according to the first interval time;
eighth step: the MCU module 200 receives at least two manual trigger signals again at intervals and records the trigger time;
ninth step: the MCU module 200 recalculates the time difference between the last trigger time and the previous trigger time and obtains at least one second time difference value;
tenth step: calculating a weighted average of the second time difference value and the first interval time and saving the weighted average as the second interval time;
eleventh step: the MCU module 200 drives the oxygen supply solenoid valve module 300 according to the second interval time to automatically release oxygen.
Twelfth step: and repeating the eighth to eleventh steps if the manual trigger signal is received again during the automatic oxygen release of the MCU module.
For example: when the user triggers the manual switch 400 to input a first switch trigger signal, the MCU module 200 responds to two actions, wherein the first action is to immediately output a control signal to the oxygen supply electromagnetic valve module 300, and the oxygen supply electromagnetic valve module 300 releases oxygen; the second action is to record the current time point A and wait for a second manual trigger signal;
when the manual switch 400 inputs a second switch trigger signal, the MCU module 200 responds to three actions, wherein the first action is to immediately output a control signal to the oxygen supply electromagnetic valve module 300, and the oxygen supply electromagnetic valve module 300 releases oxygen; the second action is to calculate the time difference between the first switch trigger signal, and the time difference is recorded as t1; the third action is to record the current time point B and wait for a third manual trigger signal;
when the manual switch 400 inputs a third switch trigger signal, the MCU module 200 responds to four actions, the first action is to immediately output a control signal to the oxygen supply solenoid valve module 300, the oxygen supply solenoid valve module 300 releases oxygen, the second action is to calculate a time difference between the oxygen supply solenoid valve module 300 and the second switch trigger signal, the time difference is recorded as t2, the third action is to record a current time point C, t1 and t2 are two first time differences, the fourth action is to calculate an average value t of t1 and t2, and the first interval time t is stored.
The calculation formula is t= (t1+t2)/2
The MCU module 200 then automatically controls the oxygen supply solenoid valve module 300 to release oxygen at intervals of the first interval t until the trigger signal of the manual switch 400 is received again or the power is turned off.
After the first interval time t is calculated, the manual trigger signal is not needed, and the first interval t is the time period for predicting the next breath.
The MCU module 200 will automatically control the oxygen supply solenoid valve module 300 to release oxygen according to the interval output signal of the first interval t.
For example, the time point D in the figure is an automatic signal output point, and the time length t=t.
When the MCU processes the automatic output signal, if the trigger signal of the manual switch 400 is received again, the first action is to immediately and synchronously output the signal, and the MCU module 200 controls the oxygen supply solenoid valve module 300 to release oxygen, for example, the signal should be output at the time point F, but when the manual trigger signal is received at the time point E, the first interval t restarts to calculate the time.
If the trigger signal of the manual switch 400 is received again, three actions are immediately executed, wherein the first action is to immediately and synchronously output the signal, and the MCU module 200 controls the oxygen supply electromagnetic valve module 300 to release oxygen; the second action is to calculate the time difference between the manual trigger signal and the previous manual trigger signal, the time difference is recorded as a second time difference value t3, the second interval time t 'is recalculated, and the second interval time t' is calculated by the following method:
t'=(t+t3)/2
if the trigger signal of the manual switch 400 is continuously received, a new t is calculated according to the method, and an output signal is given according to the time period of the new t, so that the oxygen supply electromagnetic valve module 300 releases oxygen.
The cycle average method can be used for improving the anti-interference or improving the precision according to the place of the pulse oxygenerator, and more times of cycle average methods, such as 5 times or more, can be adopted.
According to the oxygen supply method of the manual pulse oxygen supply device, through the arrangement of the manual switch 400, the manual trigger signal is adopted, the MCU module 200 is used for processing the manual trigger signal, the time point of the next breath is predicted by collecting three or more trigger signals, the manual trigger signal is not needed any more, the trigger signal is released automatically, the oxygen supply electromagnetic valve module 300 releases oxygen, and the problem of functional failure caused by the fact that the respiratory signal cannot be detected is avoided.
Further, before the ninth step, it is determined whether the oxygen supply solenoid valve module 300 is releasing oxygen, and if so, the time difference of the trigger signal is recalculated.
When the MCU processes the automatic output signal, if the trigger signal of the manual switch 400 is received again, the first action is to immediately and synchronously output the signal, the MCU module 200 controls the oxygen supply electromagnetic valve module 300 to release oxygen, and determines whether the oxygen supply electromagnetic valve module 300 starts to release oxygen before receiving the manual trigger signal, that is: if the output is currently available, restarting calculation of the oxygen supply time, namely, not counting the previously available oxygen supply time within the interval time; if the signal is output immediately during the waiting period, the output rule is unchanged.
Further, before the tenth step, it is determined whether the second time difference is valid, and if yes, the subsequent step is performed.
When the MCU processes the automatic output signal, if at least two manual switch 400 trigger signals are received at intervals again, and the time difference between the two trigger signals is calculated, the time is recorded as a second time difference t3, and if the error between t3 and the first interval time t is smaller than a preset threshold, for example, within 20%, the current manual switch trigger signal is considered to be an effective signal, a second interval time t 'is calculated again, and the second interval time t' is calculated by:
t'=(t+t3)/2
if the error between the second time difference t3 and the first interval time t exceeds the preset threshold, the next manual trigger signal is considered to be an invalid signal, the MCU module 200 considers that only the latest signal is received, the previous signal is lost, and the first interval time t does not need to be recalculated.
The above-mentioned can also be adjusted according to the characteristics of the user group when calculating the period error. The 20% as described above may be reduced to 5% or increased to 30%.
Because the invention point of the device is manual pulse output, the oxygen outlet time period in t in the figure, such as the oxygen outlet time period K, the switch time period t5 and the breath feeling time period t4, will not be in the patent, and the pulse processing is inevitably required to meet the problem, so that the embodiment of the invention is conveniently understood.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A manual pulse oxygen supply device, which is characterized in that: the device comprises a power supply, an MCU module, an oxygen supply electromagnetic valve module, a manual switch and a pulse output indicator lamp; the power supply is connected with a power supply pin of the MCU module;
the oxygen supply signal output end of the MCU module is connected with the signal input end of the oxygen supply electromagnetic valve module, and the signal output end of the oxygen supply electromagnetic valve module is connected with the oxygen inlet and the oxygen outlet;
the signal output end of the indicator lamp of the MCU module is connected with the signal input end of the indicator lamp; the manual switch is connected with a switch detection signal pin of the MCU module;
the manual switch is used for receiving manual trigger signals synchronously triggered by a user along with self respiration, the MCU module receives at least three manual trigger signals and analyzes the time of the manual trigger signals, predicts the time point of the next respiration, automatically releases the trigger signals at the time point of the next respiration, and drives the oxygen supply electromagnetic valve module to automatically release oxygen.
2. A manual pulse oxygen supply device according to claim 1, wherein: the manual switch comprises at least one of a mechanical switch, an optical coupler switch, a foot switch, an inductive switch and a wireless switch.
3. A manual pulse oxygen supply device according to claim 1, wherein: the oxygen supply electromagnetic valve module comprises a driving unit, a rectifier diode and an oxygen supply control valve; the oxygen supply signal output end of the MCU module is connected with the signal input end of the driving unit through the first resistor, the signal output end of the driving unit is connected with the oxygen supply control valve and used for providing driving electric energy for the oxygen supply control valve, and the rectifier diode is connected with the oxygen supply control valve in parallel and used for counteracting reverse potential generated by the oxygen supply control valve when the signal is interrupted.
4. A manual pulse oxygen supply device according to claim 3, wherein: the oxygen supply electromagnetic valve module comprises at least one of a field effect transistor, a high-current triode and a driving IC.
5. A manual pulse oxygen supply device according to claim 1, wherein: the model of the MCU module is N76E003AT20.
6. A manual pulse oxygen supply device according to claim 1, wherein: the indicator lamp comprises a second resistor and a light emitting diode, one end of the second resistor is connected with the signal output end of the indicator lamp of the MCU module, the other end of the second resistor is connected with the positive electrode of the light emitting diode, and the negative electrode of the light emitting diode is connected with the ground electrode.
7. A manual pulse oxygen supply device according to claim 4, wherein: the rectifier diode is of type B5819W.
8. The application method of the manual pulse oxygen supply device is characterized by comprising the following steps of:
the first step: the MCU module is powered on and started, and is reset and waits for manual switch signal input;
and a second step of: the user synchronously triggers the manual switch along with own breath and sends out at least three manual trigger signals along with own breath;
and a third step of: the MCU module receives the manual trigger signal and records the trigger time;
fourth step: the MCU module drives the oxygen supply electromagnetic valve module to release oxygen according to the manual trigger signal;
fifth step: the MCU module calculates the time difference between the last trigger time and the previous trigger time and obtains at least two first time differences;
sixth step: calculating a weighted average of at least two first time differences and storing the weighted average as a first interval time;
seventh step: the MCU module drives the oxygen supply electromagnetic valve module to automatically release oxygen according to the first interval time;
eighth step: the MCU module receives the manual trigger signal again and records the trigger time;
ninth step: the MCU module recalculates the time difference between the last trigger time and the previous trigger time and obtains at least one second time difference value;
tenth step: calculating a weighted average of the second time difference value and the first interval time and saving the weighted average as the second interval time;
eleventh step: the MCU module drives the oxygen supply electromagnetic valve module to automatically release oxygen according to the second interval time;
twelfth step: and repeating the eighth to eleventh steps if the manual trigger signal is received again during the automatic oxygen release of the MCU module.
9. The method of using a manual pulse oxygen supply device according to claim 8, wherein: before the ninth step, judging whether the oxygen supply electromagnetic valve module releases oxygen, if so, recalculating the time difference of the trigger signal.
10. The method of using a manual pulse oxygen supply device according to claim 8, wherein: and judging whether the second time difference value is valid or not before the tenth step, and if so, executing the subsequent steps.
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