Cough peak flow rate control method and device, electronic equipment and storage medium

Abstract

The embodiment of the invention provides a cough peak flow rate control method and device, electronic equipment and a storage medium, and relates to the technical field of instrument control. The method comprises the following steps: acquiring a gas pressure difference signal, and calculating an analog voltage signal based on the gas pressure difference signal; acquiring expiration flow data, and fitting a plurality of expiration flow data and the forced vital capacity in a preset time period; calculating a corresponding target cough peak flow rate based on the forced vital capacity; and adjusting the opening degree of a valve body of the expectoration machine to enable the expectoration machine to output the target cough peak flow rate. According to the method, the cough peak flow rate required by a patient can be well analyzed; the valve body is opened and closed according to the needed cough peak flow rate, and power waste is reduced. And the power can be well saved.

Description

Technical Field

[0001] This invention relates to the field of equipment control technology, and more specifically, to a method, apparatus, electronic device, and storage medium for controlling cough peak flow rate. Background Technology

[0002] A cough suppressant is a device used to expel phlegm by simulating the coughing process. When in use, the cough suppressant first applies a specific amount of positive pressure to the airway, creating a sufficiently large change in air volume. A specific curved airflow then fully enters the small airways, loosening secretions blocking the bronchi at all levels. It then quickly switches to a certain amount of negative pressure, generating a sufficient peak cough flow rate (CPEF) to expel the phlegm.

[0003] Current methods for controlling the peak cough flow rate in expectoration machines primarily involve setting a low initial negative pressure value and then gradually increasing it in increments. This method cannot intelligently adjust to the user's needs, resulting in suboptimal treatment efficacy and user experience. Summary of the Invention

[0004] To address the aforementioned technical problems, embodiments of this application provide a method, apparatus, electronic device, and storage medium for controlling cough peak flow rate.

[0005] In a first aspect, embodiments of this application provide a method for controlling cough peak flow rate, the method comprising: Acquire the gas pressure difference signal and calculate the analog voltage signal based on the gas pressure difference signal; Acquire expiratory flow data and fit multiple expiratory flow data and forced vital capacity within a preset time period; Calculate the target cough peak flow rate based on the forced vital capacity; The opening and closing degree of the valve body of the expectorant machine is adjusted so that the expectorant machine outputs the target cough peak flow rate.

[0006] In one embodiment, acquiring the gas pressure difference signal and calculating the analog voltage signal based on the gas pressure difference signal includes: When the user's gas flows through the capillary grid resistance network, the user's gas is converted into the gas pressure difference signal; The silicon-sensitive micro-pressure sensors on both sides of the capillary grid resistance mesh sense the gas pressure difference signal and convert the gas pressure difference signal into the analog voltage signal.

[0007] In one embodiment, converting the gas pressure difference signal into the analog voltage signal includes: The analog voltage signal is calculated based on the following formula:

[0008] Where S represents exhalation time, P represents expiratory flow rate, and Vte represents expiratory tidal volume.

[0009] In one embodiment, acquiring expiratory flow data involves fitting multiple expiratory flow data points and forced vital capacity within a preset time period, including: The forced vital capacity is calculated based on the following formula: ; Where N is the number of sampling bits, ∆t is the sampling interval, and flow(k) is the flow data for each sampling.

[0010] In one embodiment, the method further includes: The flow rate is detected by a flow sensor, and the real-time flow rate is compared with the test flow rate to ensure that the flow rate accuracy is less than or equal to 2L / min.

[0011] In one embodiment, the method further includes: By comparing the detected pressure with the set pressure; If the pressure is too high, the pressure will be released through the valve body; If the pressure is too low, increase the pressure through the valve.

[0012] Secondly, embodiments of this application provide a cough peak flow rate control device, applied to an electronic device, the cough peak flow rate control device comprising: The first acquisition module is used to acquire a gas pressure difference signal and calculate an analog voltage signal based on the gas pressure difference signal. The second acquisition module is used to acquire expiratory flow data and fit multiple expiratory flow data and forced vital capacity within a preset time period. The calculation module is used to calculate the target cough peak flow rate based on the forced vital capacity; The adjustment module is used to adjust the opening and closing degree of the valve body of the expectorant machine so that the expectorant machine outputs the target cough peak flow rate.

[0013] In one embodiment, the second acquisition module is further configured to: The forced vital capacity is calculated based on the following formula: ; Where N is the number of sampling bits, ∆t is the sampling interval, and flow(k) is the flow data for each sampling.

[0014] Thirdly, embodiments of this application provide an electronic device, including a memory and a processor, wherein the memory is used to store a computer program, and the computer program executes the cough peak flow rate control method provided in the first aspect when the processor is running.

[0015] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when run on a processor, executes the cough peak flow rate control method provided in the first aspect.

[0016] The cough peak flow rate control method provided in this application can effectively analyze the cough peak flow rate required by the patient; and open and close the valve according to the required cough peak flow rate, reducing power waste. This results in significant power savings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A flowchart of the cough peak flow rate control method provided in this application; Figure 2 This is a schematic diagram of the cough peak flow rate control device provided in this application. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0025] Example 1 This disclosure provides a method for controlling the peak cough flow rate.

[0026] For details, see Figure 1 Methods for controlling cough peak flow rate include: Step S110: Obtain the gas pressure difference signal and calculate the analog voltage signal based on the gas pressure difference signal; In one embodiment, acquiring the gas pressure difference signal and calculating the analog voltage signal based on the gas pressure difference signal includes: converting the user gas into the gas pressure difference signal when the user gas flows through the capillary grid resistance network; sensing the gas pressure difference signal based on silicon-sensitive micro-pressure sensors on both sides of the capillary grid resistance network, and converting the gas pressure difference signal into the analog voltage signal.

[0027] When the user's gas flows through the capillary grid resistance network, the gas flow rate signal is converted into a tiny pressure difference signal, which is then sensed by the silicon-sensitive micro-pressure sensors on both sides of the capillary grid resistance network and converted into an analog voltage signal, which is then sent to the MCU.

[0028] In one embodiment, converting the gas pressure difference signal into the analog voltage signal includes: calculating the analog voltage signal based on the following formula:

[0029] Where S represents expiratory time, P represents expiratory flow rate, and Vte represents expiratory tidal volume. As key parameters for the conversion between gas pressure difference signals and analog voltage signals, these parameters provide basic data support for subsequent calculations of expiratory flow rate, forced vital capacity, and target cough peak flow rate.

[0030] Step S120: Obtain expiratory flow data and fit multiple expiratory flow data and forced vital capacity within a preset time period; The differential pressure flow sensor acquires the flow rate by detecting the user's exhalation, obtaining multiple flow rate values ​​for evaluating and analyzing the cough peak flow rate. A corresponding fitting curve is generated based on multiple control parameters. The flow rate is integrated using an integral formula based on the sampling interval and flow rate, and the maximum FVC is selected after 2 seconds of accumulation. The corresponding target cough peak flow rate is calculated using an algorithm; the opening degree of the valve is controlled according to the target cough peak flow rate.

[0031] In one embodiment, acquiring expiratory flow data involves fitting multiple expiratory flow data points and forced vital capacity within a preset time period, including: The forced vital capacity is calculated based on the following formula: ; Where N is the number of sampling bits, ∆t is the sampling interval, and flow(k) is the flow data for each sampling.

[0032] Step S130: Calculate the target cough peak flow rate based on the forced vital capacity; The cough peak flow rate control device includes: a cough peak flow rate detection module, a sensor, a valve body, a processor, etc. The system includes a cough peak flow rate detection module and a valve body. The cough peak flow rate detection module is used to acquire the evaluated cough peak. The valve body is used to control the opening and closing degree of the valve, adjusting different pressures to meet different flow rates while releasing excessive pressure. The processor is used to generate corresponding control curves based on multiple control parameters. Based on preset positive and negative pressure values, respiratory ratio, and evaluated cough peak flow rate, the processor calculates the oxygen flow rate at the oxygen source end. Based on the control curve, the processor selects the target control parameter corresponding to the cough peak flow rate. Based on the target control parameter, the processor controls the opening and closing degree of the valve body to output the flow rate according to the target cough peak flow rate.

[0033] In one embodiment, the method further includes: The flow rate is detected by a flow sensor, and the real-time flow rate is compared with the test flow rate to ensure that the flow rate accuracy is less than or equal to 2L / min.

[0034] Based on the target cough peak flow rate, the valve is activated, opening or closing one port. A flow sensor detects the expiratory flow rate, and the real-time flow rate is compared with the measured flow rate to ensure a flow rate accuracy of ≤±2L / Min.

[0035] In one embodiment, the method further includes: The pressure is compared with the set pressure; if the pressure is too high, the pressure is released through the valve body; if the pressure is too low, the pressure is increased through the valve.

[0036] Pressure is detected by a pressure sensor, ensuring a pressure accuracy of ≤ ±0.5 cmH2O. The detected pressure is compared to the set pressure; if the pressure is too high, pressure is released through the valve body to remove excess pressure. If the pressure is too low, pressure is increased through the valve to compensate for the pressure.

[0037] Step S140: Adjust the opening degree of the valve body of the expectorant machine so that the expectorant machine outputs the target cough peak flow rate.

[0038] The cough peak flow rate control method provided in this embodiment can effectively analyze the cough peak flow rate required by the patient; and open and close the valve according to the required cough peak flow rate, reducing power waste. This can effectively save power and extend the product's operating time.

[0039] Example 2 Furthermore, this disclosure provides a cough peak flow rate control device for use in electronic devices.

[0040] Specifically, such as Figure 2 As shown, the cough peak flow rate control device 200 includes: The first acquisition module 210 is used to acquire a gas pressure difference signal and calculate an analog voltage signal based on the gas pressure difference signal. The second acquisition module 220 is used to acquire expiratory flow data and fit multiple expiratory flow data and forced vital capacity within a preset time period. Calculation module 230 is used to calculate the corresponding target cough peak flow rate based on the forced vital capacity; The adjustment module 240 is used to adjust the opening and closing degree of the valve body of the expectorant machine so that the expectorant machine outputs the target cough peak flow rate.

[0041] The cough peak flow rate control device 200 provided in this embodiment can implement the cough peak flow rate control method provided in Embodiment 1. To avoid repetition, it will not be described again here.

[0042] The cough peak flow rate control method provided in this embodiment can effectively analyze the cough peak flow rate required by the patient; and open and close the valve according to the required cough peak flow rate, reducing power waste. This can effectively save power and extend the product's operating time.

[0043] Example 3 Furthermore, this disclosure provides an electronic device including a memory and a processor, wherein the memory stores a computer program that, when executed on the processor, performs the cough peak flow rate control method provided in Embodiment 1.

[0044] The electronic device provided in this embodiment of the invention can implement the cough peak flow rate control method provided in Embodiment 1. To avoid repetition, it will not be described again here.

[0045] The electronic device provided in this embodiment can effectively analyze the patient's required peak cough flow rate; it opens and closes the valve according to the required peak cough flow rate, reducing power waste. This significantly saves power and extends the product's operating time.

[0046] Example 4 This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the cough peak flow rate control method provided in Embodiment 1.

[0047] In this embodiment, the computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0048] The computer-readable storage medium provided in this embodiment can implement the cough peak flow rate control method provided in Embodiment 1. To avoid repetition, it will not be described again here.

[0049] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal that includes that element.

[0050] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0051] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for controlling cough peak flow rate, characterized in that, Applied to a cough suppressant machine, the method includes: Acquire the gas pressure difference signal and calculate the analog voltage signal based on the gas pressure difference signal; Acquire expiratory flow data and fit multiple expiratory flow data and forced vital capacity within a preset time period; Calculate the target cough peak flow rate based on the forced vital capacity; The opening and closing degree of the valve body of the expectorant machine is adjusted so that the expectorant machine outputs the target cough peak flow rate.

2. The method according to claim 1, characterized in that, The process of acquiring the gas pressure difference signal and calculating the analog voltage signal based on the gas pressure difference signal includes: When the user's gas flows through the capillary grid resistance network, the user's gas is converted into the gas pressure difference signal; The silicon-sensitive micro-pressure sensors on both sides of the capillary grid resistance mesh sense the gas pressure difference signal and convert the gas pressure difference signal into the analog voltage signal.

3. The method according to claim 2, characterized in that, The step of converting the gas pressure difference signal into the analog voltage signal includes: The analog voltage signal is calculated based on the following formula. Where S represents exhalation time, P represents expiratory flow rate, and Vte represents expiratory tidal volume.

4. The method according to claim 1, characterized in that, The acquisition of expiratory flow data involves fitting multiple expiratory flow data points and forced vital capacity within a preset time period, including: The forced vital capacity is calculated based on the following formula. ； Where N is the number of sampling bits, ∆t is the sampling interval, and flow(k) is the flow data for each sampling.

5. The method according to claim 1, characterized in that, The method further includes: The flow rate is detected by a flow sensor, and the real-time flow rate is compared with the test flow rate to ensure that the flow rate accuracy is less than or equal to 2L / min.

6. The method according to claim 1, characterized in that, The method further includes: By comparing the detected pressure with the set pressure; If the pressure is too high, the pressure will be released through the valve body; If the pressure is too low, increase the pressure through the valve.

7. A cough peak flow rate control device, characterized in that, The device includes: The first acquisition module is used to acquire a gas pressure difference signal and calculate an analog voltage signal based on the gas pressure difference signal. The second acquisition module is used to acquire expiratory flow data and fit multiple expiratory flow data and forced vital capacity within a preset time period. The calculation module is used to calculate the target cough peak flow rate based on the forced vital capacity; The adjustment module is used to adjust the opening and closing degree of the valve body of the expectorant machine so that the expectorant machine outputs the target cough peak flow rate.

8. The cough peak flow rate control device according to claim 7, characterized in that, The second acquisition module is also used for: The forced vital capacity is calculated based on the following formula. ； Where N is the number of sampling bits, ∆t is the sampling interval, and flow(k) is the flow data for each sampling.

9. An electronic device, characterized in that, The method includes a memory and a processor, wherein the memory stores a computer program that executes the cough peak flow rate control method according to any one of claims 1 to 6 when the processor is running.

10. A computer-readable storage medium, characterized in that, It stores a computer program that, when run on a processor, executes the cough peak flow rate control method according to any one of claims 1 to 6.

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