CN116020031B - Constant volume control method, system and device for breathing machine and storage medium - Google Patents
Constant volume control method, system and device for breathing machine and storage medium Download PDFInfo
- Publication number
- CN116020031B CN116020031B CN202310306707.4A CN202310306707A CN116020031B CN 116020031 B CN116020031 B CN 116020031B CN 202310306707 A CN202310306707 A CN 202310306707A CN 116020031 B CN116020031 B CN 116020031B
- Authority
- CN
- China
- Prior art keywords
- flow rate
- preset
- time
- acceleration
- current flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a method, a system, a device and a storage medium for controlling constant volume of a breathing machine, which comprise the following steps: determining a first acceleration according to a preset uniform flow rate and a preset acceleration time of the breathing machine, accelerating the flow rate from zero according to the first acceleration, and collecting and updating the current flow rate according to a preset time interval; if the current flow rate exceeds the preset uniform flow rate, calculating compensation time according to the actual acceleration time and the preset acceleration time, controlling the current flow rate to be stable in a preset range, and calculating the total value of the current capacity; if the first preset relation is met between the current flow speed and the compensation time, decelerating the current flow speed according to the second acceleration until the current flow speed is reduced to zero; in the deceleration, if the current flow speed is lower than the set threshold value and the second preset relation is met between the current capacity total value and the preset capacity value, stopping the deceleration until the current capacity total value meets the deceleration condition, and continuing the deceleration. The embodiment of the invention can improve the constant volume control precision of the breathing machine and can be widely applied to the technical field of breathing machines.
Description
Technical Field
The invention relates to the technical field of respirators, in particular to a method, a system, a device and a storage medium for controlling constant volume of a respirator.
Background
In modern clinical medicine, a respirator is taken as an effective means capable of replacing autonomous ventilation function artificially, is widely used for respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, respiratory support treatment and emergency resuscitation, and is a vital medical device capable of preventing and treating respiratory failure, reducing complications, and saving and prolonging the life of patients. The air flow capacity control of the breathing machine is an important control index, in the related technology, the breathing machine is controlled to quickly reach a required flow speed value, and then the time is integrated, so that the constant volume control is realized, but when the control method is actually applied, the actual air supply capacity and the set capacity have larger errors due to the problems of stability acquired by a sensor, closing response speed of a proportional valve and the like.
Disclosure of Invention
Accordingly, an object of the embodiments of the present invention is to provide a method, a system, a device, and a storage medium for controlling a constant volume of a ventilator, which can improve the accuracy of controlling the constant volume of the ventilator.
In a first aspect, an embodiment of the present invention provides a method for controlling constant volume of a breathing machine, including the following steps:
determining a first acceleration according to a preset uniform flow rate and a preset acceleration time of the breathing machine, accelerating the flow rate from zero according to the first acceleration, and collecting and updating the current flow rate according to a preset time interval;
if the current flow rate exceeds the preset uniform flow rate, calculating compensation time according to the actual acceleration time and the preset acceleration time; controlling the current flow rate to be stable within a preset range, and calculating the total current capacity value;
if the compensation time meets a first preset relation, decelerating the current flow rate according to a second acceleration until the current flow rate is reduced to zero; in the deceleration process, if the current flow speed is lower than a set threshold value and the second preset relation is met between the current capacity total value and the preset capacity value, stopping deceleration until the current capacity total value meets a deceleration condition, and continuing deceleration; the second acceleration is a negative value of the first acceleration.
Optionally, if the current flow rate exceeds the preset uniform flow rate, calculating the compensation time according to the actual acceleration time and the preset acceleration time, including:
if the current flow rate exceeds the preset uniform flow rate within the preset acceleration time, acquiring a first time when the current flow rate exceeds the preset uniform flow rate;
and determining compensation time according to the difference value between the first time and the preset acceleration time.
Optionally, if the current flow rate exceeds the preset uniform flow rate, calculating the compensation time according to the actual acceleration time and the preset acceleration time, including:
if the current flow rate does not reach the preset uniform flow rate within the preset acceleration time, continuously updating the current flow rate according to the first acceleration until the current flow rate exceeds the preset uniform flow rate;
acquiring a second time when the current flow rate exceeds the preset uniform flow rate;
and determining compensation time according to the difference value between the second time and the preset acceleration time.
Optionally, the first preset relationship satisfies the following formula:
（Vt-Vt_real)=v×t acc_real -0.5×a×t acc_real 2
wherein Vt represents a preset capacity value, vt_real represents a current capacity total value, v represents a current flow rate, t acc_real The compensation time is represented, and a represents the first acceleration.
Optionally, the second preset relationship satisfies the following formula:
（Vt-Vt_real)>v th ×t th -0.5×a×t th 2
wherein Vt represents a preset capacity value, vt_real represents a current capacity total value, v th A represents a flow rate setting threshold value, a represents a first acceleration, t th Indicating the deceleration remaining time.
Optionally, the deceleration remaining time is determined by the following method:
acquiring air suction time and current running time;
and determining the residual deceleration time according to the difference value between the air suction time and the current running time.
In a second aspect, an embodiment of the present invention provides a constant volume control system for a breathing machine, including:
the accelerating module is used for determining a first acceleration according to a preset uniform flow rate and a preset accelerating time of the breathing machine, accelerating the flow rate from zero according to the first acceleration, and collecting and updating the current flow rate according to a preset time interval;
the compensation module is used for calculating compensation time according to the actual acceleration time and the preset acceleration time if the current flow rate exceeds the preset uniform flow rate;
the constant speed control module is used for controlling the current flow rate to be stable in a preset range and calculating the total current capacity value if the current flow rate exceeds the preset uniform flow rate;
the speed reduction module is used for reducing the current flow rate according to the second acceleration until the current flow rate is reduced to zero if the total current capacity value, the preset capacity value, the current flow rate and the compensation time meet a first preset relation; in the deceleration process, if the current flow speed is lower than a set threshold value and the second preset relation is met between the current capacity total value and the preset capacity value, stopping deceleration until the current capacity total value meets a deceleration condition, and continuing deceleration; the second acceleration is a negative value of the first acceleration.
In a third aspect, an embodiment of the present invention provides a constant volume control device for a breathing machine, including:
at least one processor;
at least one memory for storing at least one program;
the at least one program, when executed by the at least one processor, causes the at least one processor to implement the method described above.
In a fourth aspect, embodiments of the present invention provide a computer readable storage medium having stored therein a processor executable program for performing the above-described method when executed by a processor.
In a fifth aspect, an embodiment of the present invention provides a ventilator constant volume control system, including a ventilator and a computer device connected to the ventilator; wherein, the liquid crystal display device comprises a liquid crystal display device,
the breathing machine is used for operating according to the control method;
the computer device includes:
at least one processor;
at least one memory for storing at least one program;
the at least one program, when executed by the at least one processor, causes the at least one processor to implement the method described above.
The embodiment of the invention has the following beneficial effects: in this embodiment, first acceleration is determined first, the flow rate is accelerated from zero according to the first acceleration, if the current flow rate exceeds a preset uniform flow rate, compensation time is calculated according to actual acceleration time and preset acceleration time, the current flow rate is controlled to be stable within a preset range, then a deceleration scheme is determined according to information such as a current capacity total value, a preset capacity value, the current flow rate and the like, a control process of the breathing machine comprises an acceleration stage, a uniform speed control stage and a deceleration stage, the added acceleration stage and deceleration stage improve ventilation stability, and the fixed volume control precision of the breathing machine is improved through correction of each influence factor of the acceleration stage and the deceleration stage.
Drawings
Fig. 1 is a schematic flow chart of steps of a method for controlling constant volume of a breathing machine according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for determining a compensation time according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating another step of determining a compensation time according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating a step of determining a remaining time for deceleration according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of gas flow rates for an embodiment of the present invention;
fig. 6 is a block diagram of a ventilator constant volume control system according to an embodiment of the present invention;
fig. 7 is a block diagram of a constant volume control device of a breathing machine according to an embodiment of the present invention;
fig. 8 is another block diagram of a constant volume control system for a ventilator according to an embodiment of the present invention.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples. The step numbers in the following embodiments are set for convenience of illustration only, and the order between the steps is not limited in any way, and the execution order of the steps in the embodiments may be adaptively adjusted according to the understanding of those skilled in the art.
In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is to be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with one another without conflict.
In the following description, the terms "first", "second", "third" and the like are merely used to distinguish similar objects and do not represent a specific ordering of the objects, it being understood that the "first", "second", "third" may be interchanged with a specific order or sequence, as permitted, to enable embodiments of the invention described herein to be practiced otherwise than as illustrated or described herein.
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 in the embodiments of the invention is for the purpose of describing embodiments of the invention only and is not intended to be limiting of the invention.
As shown in fig. 1, an embodiment of the present invention provides a method for controlling constant volume of a breathing machine, including the following steps:
s100, determining a first acceleration according to a preset uniform flow rate and a preset acceleration time of the breathing machine, accelerating the flow rate from zero according to the first acceleration, and collecting and updating the current flow rate according to a preset time interval.
It should be noted that, the preset uniform flow rate and the preset acceleration time are set by the user, and the preset uniform flow rate and the preset acceleration time are determined according to practical applications, and the embodiment is not specifically limited, for example, the preset acceleration time is set to 0.1s. The preset time interval is determined according to time application, and the present embodiment is not particularly limited, and for example, the preset time interval is set to 10ms.
Specifically, the quotient of the preset uniform flow rate and the preset acceleration time is taken as the first acceleration, and the air flow speed is zero after the breathing machine starts to work, so that the air flow speed is accelerated from zero according to the first acceleration, the air flow speed is acquired according to the preset time interval, and the air flow speed is taken as the current flow speed. In the acceleration phase, the current flow rate changes with time. After the airflow speed starts accelerating from zero, the timing is started.
And S200, if the current flow rate exceeds the preset uniform flow rate, calculating the compensation time according to the actual acceleration time and the preset acceleration time.
The actual acceleration time indicates the time from zero acceleration to preset uniform flow rate, and in theory, the actual acceleration time and the preset acceleration time are equal, but in practical application, the actual acceleration time and the preset acceleration time are different due to the problems of stability of sensor acquisition, closing response speed of the proportional valve and the like. In general, there may be two different situations where the preset acceleration time is advanced or retarded.
Referring to fig. 2, if the current flow rate exceeds the preset uniform flow rate, calculating a compensation time according to an actual acceleration time and the preset acceleration time, specifically including:
S210A, if the current flow rate exceeds the preset uniform flow rate in the preset acceleration time, acquiring a first time when the current flow rate exceeds the preset uniform flow rate;
S220A, determining compensation time according to the difference value between the first time and the preset acceleration time.
The first time represents the time when the current flow rate exceeds the preset uniform flow rate, and if the current flow rate exceeds the preset uniform flow rate in the preset acceleration time, the preset uniform flow rate is indicated to be earlier than the preset acceleration time. The difference between the first time and the preset acceleration time is negative because the preset uniform flow rate is reached in advance. For example, the preset acceleration time is set to 100ms, and when the current flow rate acquired at the 80 th ms reaches the preset uniform flow rate, the compensation time=80-100= -20ms.
Optionally, referring to fig. 3, if the current flow rate exceeds the preset uniform flow rate, calculating the compensation time according to the actual acceleration time and the preset acceleration time specifically includes:
S210B, if the current flow rate does not reach the preset uniform flow rate within the preset acceleration time, continuously updating the current flow rate according to the first acceleration until the current flow rate exceeds the preset uniform flow rate;
S220B, obtaining a second time when the current flow rate exceeds the preset uniform flow rate;
S230B, determining compensation time according to the difference value between the second time and the preset acceleration time.
If the current flow rate does not reach the preset uniform flow rate within the preset acceleration time, the preset acceleration time is shown to be delayed, and after the preset acceleration time is reached, the gas flow rate is further required to be accelerated according to the first acceleration until the current flow rate reaches or exceeds the preset uniform flow rate, the current flow rate exceeds the second time of the preset uniform flow rate, the difference value between the second time and the preset acceleration time is taken as the compensation time, and at the moment, the compensation time is a positive value. For example, the preset acceleration time is set to 100ms, and when the current flow rate acquired at 110ms reaches the preset uniform flow rate, the compensation time=110-100=10 ms.
And S300, if the current flow rate exceeds the preset uniform flow rate, controlling the current flow rate to be stable within a preset range, and calculating the total current capacity value.
Specifically, the preset range is determined according to a preset uniform flow rate, and the present embodiment is not particularly limited. For example, a value within a certain proportion range of the preset uniform flow rate is taken as a preset range, and a range of +/-1% of the preset uniform flow rate is taken as a preset range. Methods of controlling the current flow rate to be stable within a preset range include, but are not limited to, an in-mold PID control algorithm, and methods of calculating the current capacity sum include, but are not limited to, integrating the current flow rate.
S400, if the total current capacity value, the preset capacity value, the current flow rate and the compensation time meet a first preset relation, decelerating the current flow rate according to a second acceleration until the current flow rate is reduced to zero; in the deceleration process, if the current flow speed is lower than a set threshold value and the second preset relation is met between the current capacity total value and the preset capacity value, stopping deceleration until the current capacity total value meets a deceleration condition, and continuing deceleration; the second acceleration is a negative value of the first acceleration.
The second acceleration represents an acceleration at which the airflow decelerates, and a negative value of the first acceleration is taken as the second acceleration. If the current capacity total value, the preset capacity value and the like meet the first preset relation, the gas flow speed starts to be decelerated, and in the deceleration process, if the current capacity total value, the preset capacity value and the like meet the second preset relation, the deceleration process is suspended until the current capacity total value is not in the second preset relation, and the deceleration is continued until the gas flow speed is reduced to zero.
Optionally, the first preset relationship satisfies the following formula:
（Vt-Vt_real)=v×t acc_real -0.5×a×t acc_real 2
wherein Vt represents a preset capacity value, vt_real represents a current capacity total value, v represents a current flow rate, t acc_real The compensation time is represented, and a represents the first acceleration.
Optionally, the second preset relationship satisfies the following formula:
（Vt-Vt_real)>v th ×t th -0.5×a×t th 2
wherein Vt represents a preset capacity value, vt_real represents a current capacity total value, v th A represents a flow rate setting threshold value, a represents a first acceleration, t th Indicating the deceleration remaining time. The flow rate setting threshold is determined according to practical applications, and the present embodiment is not particularly limited.
Alternatively, referring to fig. 4, the deceleration remaining time is determined by:
s410, acquiring air suction time and current running time;
s420, determining the residual deceleration time according to the difference value between the air suction time and the current running time.
The inspiration time is set by a user and is larger than the sum of the time of the ventilator in the acceleration, compensation, uniform speed and deceleration stages; the current run time represents the sum of the time to accelerate from zero to the current ventilator. Deceleration residual time = inhalation time-current run time, e.g. user set inhalation time = 0.7s, current run time in deceleration phase = 0.4s, deceleration residual time = 0.7-0.4 = 0.3s.
The embodiment of the invention has the following beneficial effects: in this embodiment, first acceleration is determined first, the flow rate is accelerated from zero according to the first acceleration, if the current flow rate exceeds a preset uniform flow rate, compensation time is calculated according to actual acceleration time and preset acceleration time, the current flow rate is controlled to be stable within a preset range, then a deceleration scheme is determined according to information such as a current capacity total value, a preset capacity value, the current flow rate and the like, a control process of the breathing machine comprises an acceleration stage, a uniform speed control stage and a deceleration stage, the added acceleration stage and deceleration stage improve ventilation stability, and the fixed volume control precision of the breathing machine is improved through correction of each influence factor of the acceleration stage and the deceleration stage.
In a specific embodiment, referring to fig. 5, S1 to S4 in fig. 5 respectively represent an acceleration phase, a compensation phase, a constant velocity control phase and a deceleration phase, and in S1, the ventilator accelerates from zero to a preset constant velocity v at an acceleration of a con The method comprises the steps of carrying out a first treatment on the surface of the In the S2 stage, the acceleration time t is preset acc To the compensation time t acc_real The flow rate compensation is carried out; in the S3 stage, an internal model PID control algorithm is adopted to control the gas flow velocity to v con The total current capacity value, the preset capacity value and the like meet a first preset relation and start to decelerate; in the S4 stage, the flow velocity v is uniformly controlled from the preset value at the acceleration of-a con Starting to decelerate, at a certain time, the total current capacity value, the preset capacity value and the like meet a second preset relation, suspending deceleration, and setting a threshold v for the flow rate th At another time, the second preset relation which is satisfied by the total current capacity value, the preset capacity value and the like is broken, and a threshold v is set from the current flow rate th Deceleration is continued until the gas flow rate drops to zero.
Referring to fig. 6, an embodiment of the present invention provides a constant volume control system for a ventilator, including:
the accelerating module is used for determining a first acceleration according to a preset uniform flow rate and a preset accelerating time of the breathing machine, accelerating the flow rate from zero according to the first acceleration, and collecting and updating the current flow rate according to a preset time interval;
the compensation module is used for calculating compensation time according to the actual acceleration time and the preset acceleration time if the current flow rate exceeds the preset uniform flow rate;
the constant speed control module is used for controlling the current flow rate to be stable in a preset range and calculating the total current capacity value if the current flow rate exceeds the preset uniform flow rate;
the speed reduction module is used for reducing the current flow rate according to the second acceleration until the current flow rate is reduced to zero if the total current capacity value, the preset capacity value, the current flow rate and the compensation time meet a first preset relation; in the deceleration process, if the current flow speed is lower than a set threshold value and the second preset relation is met between the current capacity total value and the preset capacity value, stopping deceleration until the current capacity total value meets a deceleration condition, and continuing deceleration; the second acceleration is a negative value of the first acceleration.
It can be seen that the content in the above method embodiment is applicable to the system embodiment, and the functions specifically implemented by the system embodiment are the same as those of the method embodiment, and the beneficial effects achieved by the method embodiment are the same as those achieved by the method embodiment.
Referring to fig. 7, an embodiment of the present invention provides a constant volume control device for a breathing machine, including:
at least one processor;
at least one memory for storing at least one program;
the at least one program, when executed by the at least one processor, causes the at least one processor to implement the method described above.
Wherein the memory is operable as a non-transitory computer readable storage medium storing a non-transitory software program and a non-transitory computer executable program. The memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes remote memory provided remotely from the processor, the remote memory being connectable to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
It can be seen that the content in the above method embodiment is applicable to the embodiment of the present device, and the functions specifically implemented by the embodiment of the present device are the same as those of the embodiment of the above method, and the beneficial effects achieved by the embodiment of the above method are the same as those achieved by the embodiment of the above method.
Furthermore, embodiments of the present application disclose a computer program product or a computer program, which is stored in a computer readable storage medium. The computer program may be read from a computer readable storage medium by a processor of a computer device, the processor executing the computer program causing the computer device to perform the method as described above. Similarly, the content in the above method embodiment is applicable to the present storage medium embodiment, and the specific functions of the present storage medium embodiment are the same as those of the above method embodiment, and the achieved beneficial effects are the same as those of the above method embodiment.
The embodiment of the present invention also provides a computer-readable storage medium storing a program executable by a processor, which when executed by the processor is configured to implement the above-described method.
It is to be understood that all or some of the steps, systems, and methods disclosed above may be implemented in software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
Referring to fig. 8, an embodiment of the present invention provides a ventilator constant volume control system, including a ventilator and a computer device connected to the ventilator; wherein, the liquid crystal display device comprises a liquid crystal display device,
the breathing machine is used for operating according to the control method;
the computer device includes:
at least one processor;
at least one memory for storing at least one program;
the at least one program, when executed by the at least one processor, causes the at least one processor to implement the method described above.
Specifically, the breathing machine further comprises a sensor, wherein the sensor is used for acquiring airflow speed information; for the computer device, it may be a different type of electronic device, including but not limited to a terminal such as a desktop computer, a laptop computer, and the like.
It can be seen that the content in the above method embodiment is applicable to the system embodiment, and the functions specifically implemented by the system embodiment are the same as those of the method embodiment, and the beneficial effects achieved by the method embodiment are the same as those achieved by the method embodiment.
While the preferred embodiment of the present invention has been described in detail, the invention is not limited to the embodiment, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the invention, and these modifications and substitutions are intended to be included in the scope of the present invention as defined in the appended claims.
Claims (10)
1. A method for controlling constant volume of a breathing machine, comprising:
determining a first acceleration according to a preset uniform flow rate and a preset acceleration time of the breathing machine, accelerating the flow rate from zero according to the first acceleration, and collecting and updating the current flow rate according to a preset time interval;
if the current flow rate exceeds the preset uniform flow rate, calculating compensation time according to actual acceleration time and the preset acceleration time, wherein the actual acceleration time represents time from zero to acceleration to the current flow rate; then, controlling the current flow rate to be stable within a preset range, and calculating a current capacity total value;
if the total current capacity value, the preset capacity value, the current flow rate and the compensation time meet a first preset relation, decelerating the current flow rate according to the second acceleration until the current flow rate is reduced to zero; in the deceleration process, if the current flow speed is lower than a set threshold value and the second preset relation is met between the current capacity total value and the preset capacity value, stopping deceleration until the current capacity total value meets a deceleration condition, and continuing deceleration; the second acceleration is a negative value of the first acceleration.
2. The method according to claim 1, wherein calculating the compensation time based on the actual acceleration time and the preset acceleration time if the current flow rate exceeds the preset uniform flow rate, comprises:
if the current flow rate exceeds the preset uniform flow rate within the preset acceleration time, acquiring a first time when the current flow rate exceeds the preset uniform flow rate;
and determining compensation time according to the difference value between the first time and the preset acceleration time.
3. The method according to claim 1, wherein calculating the compensation time based on the actual acceleration time and the preset acceleration time if the current flow rate exceeds the preset uniform flow rate, comprises:
if the current flow rate does not reach the preset uniform flow rate within the preset acceleration time, continuously updating the current flow rate according to the first acceleration until the current flow rate exceeds the preset uniform flow rate;
acquiring a second time when the current flow rate exceeds the preset uniform flow rate;
and determining compensation time according to the difference value between the second time and the preset acceleration time.
4. A method according to any one of claims 1-3, wherein the first predetermined relationship satisfies the following formula:
（Vt-Vt_real)=v×t acc_real -0.5×a×t acc_real 2
wherein Vt represents a preset capacity value, vt_real represents a current capacity total value, v represents a current flow rate, t acc_real The compensation time is represented, and a represents the first acceleration.
5. A method according to any one of claims 1-3, wherein the second predetermined relationship satisfies the following formula:
（Vt-Vt_real)>v th ×t th -0.5×a×t th 2
wherein Vt represents a preset capacity value, vt_real represents a current capacity total value, v th A represents a flow rate setting threshold value, a represents a first acceleration, t th Indicating the deceleration remaining time.
6. The method of claim 5, wherein the deceleration remaining time is determined by:
acquiring air suction time and current running time;
and determining the residual deceleration time according to the difference value between the air suction time and the current running time.
7. A ventilator constant volume control system, comprising:
the accelerating module is used for determining a first acceleration according to a preset uniform flow rate and a preset accelerating time of the breathing machine, accelerating the flow rate from zero according to the first acceleration, and collecting and updating the current flow rate according to a preset time interval;
the compensation module is used for calculating compensation time according to actual acceleration time and the preset acceleration time if the current flow rate exceeds the preset uniform flow rate, wherein the actual acceleration time represents the time from zero to the current flow rate;
the constant speed control module is used for controlling the current flow rate to be stable in a preset range and calculating the total current capacity value if the current flow rate exceeds the preset uniform flow rate;
the speed reduction module is used for reducing the current flow rate according to the second acceleration until the current flow rate is reduced to zero if the current capacity total value, the preset capacity value, the current flow rate and the compensation time meet a first preset relation; in the deceleration process, if the current flow speed is lower than a set threshold value and the second preset relation is met between the current capacity total value and the preset capacity value, stopping deceleration until the current capacity total value meets a deceleration condition, and continuing deceleration; the second acceleration is a negative value of the first acceleration.
8. A ventilator constant volume control device, comprising:
at least one processor;
at least one memory for storing at least one program;
the at least one program, when executed by the at least one processor, causes the at least one processor to implement the method of any of claims 1-6.
9. A computer readable storage medium, in which a processor executable program is stored, characterized in that the processor executable program is for performing the method according to any of claims 1-6 when being executed by a processor.
10. The constant volume control system of the breathing machine is characterized by comprising the breathing machine and computer equipment connected with the breathing machine; wherein, the liquid crystal display device comprises a liquid crystal display device,
the breathing machine is used for operating according to the control method;
the computer device includes:
at least one processor;
at least one memory for storing at least one program;
the at least one program, when executed by the at least one processor, causes the at least one processor to implement the method of any of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310306707.4A CN116020031B (en) | 2023-03-27 | 2023-03-27 | Constant volume control method, system and device for breathing machine and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310306707.4A CN116020031B (en) | 2023-03-27 | 2023-03-27 | Constant volume control method, system and device for breathing machine and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116020031A CN116020031A (en) | 2023-04-28 |
| CN116020031B true CN116020031B (en) | 2023-06-27 |
Family
ID=86079822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310306707.4A Active CN116020031B (en) | 2023-03-27 | 2023-03-27 | Constant volume control method, system and device for breathing machine and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116020031B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168790A (en) * | 2016-02-29 | 2016-11-30 | 华南理工大学 | A kind of online change target velocity and the S-shaped Acceleration-deceleration Control Method of position |
| CN114099883A (en) * | 2022-01-29 | 2022-03-01 | 广州国家实验室 | Nebulizer control methods, apparatus, media, and systems |
| CN114129842A (en) * | 2022-01-29 | 2022-03-04 | 广州国家实验室 | Pipeline assembly, air pressure detection module, atomization system, breathing machine and control method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2201698C (en) * | 1997-04-03 | 2006-01-24 | Douglas F. Devries | Portable drag compressor powered mechanical ventilator |
| JP4174972B2 (en) * | 2001-02-09 | 2008-11-05 | 三菱電機株式会社 | Positioning control method |
| US7607437B2 (en) * | 2003-08-04 | 2009-10-27 | Cardinal Health 203, Inc. | Compressor control system and method for a portable ventilator |
| US7886739B2 (en) * | 2005-10-11 | 2011-02-15 | Carefusion 207, Inc. | System and method for circuit compliance compensated volume control in a patient respiratory ventilator |
| CN104422500A (en) * | 2013-09-03 | 2015-03-18 | 北京谊安医疗系统股份有限公司 | Flow calibrating method and flow calibrating system for flow sensors of anaesthesia machines |
| CN105879175A (en) * | 2014-12-16 | 2016-08-24 | 北京航天长峰股份有限公司 | Control method for tidal volume of anaesthesia machine |
| CN106345020B (en) * | 2015-07-15 | 2019-05-17 | 北京谊安医疗系统股份有限公司 | The control method of pressure control capability mode in a kind of ventilator |
| CN108066863A (en) * | 2016-11-16 | 2018-05-25 | 北京航天长峰股份有限公司 | A kind of high reliability anesthesia respirator vent method |
| CN113606179A (en) * | 2021-08-27 | 2021-11-05 | 上海医盾医疗科技有限公司 | Fan rotating speed adjusting method and device for dry battery power supply and storage medium |
-
2023
- 2023-03-27 CN CN202310306707.4A patent/CN116020031B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168790A (en) * | 2016-02-29 | 2016-11-30 | 华南理工大学 | A kind of online change target velocity and the S-shaped Acceleration-deceleration Control Method of position |
| CN114099883A (en) * | 2022-01-29 | 2022-03-01 | 广州国家实验室 | Nebulizer control methods, apparatus, media, and systems |
| CN114129842A (en) * | 2022-01-29 | 2022-03-04 | 广州国家实验室 | Pipeline assembly, air pressure detection module, atomization system, breathing machine and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116020031A (en) | 2023-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102013468B1 (en) | Medical apparatus for extracorporeal treatment of fluid and a process of calculating set flow rates in a medical apparatus for delivery or collection of fluids | |
| CN116020031B (en) | Constant volume control method, system and device for breathing machine and storage medium | |
| van Rijn et al. | Reducing aerosol transmission of SARS‐CoV‐2 in hospital elevators | |
| WO2021147226A1 (en) | Method and apparatus for controlling exhalation valve, and computer device and storage medium | |
| CN114099883B (en) | Nebulizer control methods, apparatus, media, and systems | |
| CN108211075B (en) | Pressure stabilizing method for ventilator fan | |
| Buheji et al. | Ventilators in COVID-19, between scarcity and abundance mindset | |
| CN113791576B (en) | Method, device, equipment and storage medium for local fairing transition between tracks | |
| CN114839927A (en) | S-shaped curve acceleration and deceleration planning method and system and storage medium | |
| CN113253772B (en) | Servo positioning system and method based on error estimation and compensation | |
| Sessler | Unplanned extubations: making progress using CQI | |
| CN111265746B (en) | Hybrid chamber pressure control method, ventilator apparatus, and computer-readable storage medium | |
| CN112057700A (en) | System, device and storage medium for determining base consciousness value in anesthesia maintenance period | |
| Sugiyama et al. | The use of veno‐venous extracorporeal membrane oxygenation for massive hemoptysis following a traumatic lung injury: a case report | |
| CN113791578B (en) | Track filtering method and device based on numerical control machining system and electronic equipment | |
| EP1227712B1 (en) | Parts mounting apparatus and parts checking method by the same | |
| CN111669105B (en) | Motor rotating speed control method and device and storage medium | |
| CN102068741A (en) | Special bracket for humidification liquid of breathing machine | |
| CN114588444A (en) | Method, device, terminal and medium for controlling oxygen concentration and pressure level of breathing machine | |
| CN117442832A (en) | Method and device for controlling gas pressure of breathing machine and computer equipment | |
| CN116870296B (en) | Infusion control method, device, equipment and storage medium based on pump balance joint debugging | |
| Chauhan et al. | Use of extracorporeal membrane oxygenation support during an emergent decompression of a thoracic epidural abscess | |
| JP3480215B2 (en) | Positioning control device | |
| CN117839015A (en) | High-frequency ventilation tidal volume calculation method, system, computer device and storage medium | |
| JPS63310403A (en) | Stock control system for medicines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |