Electric blow pipe and detection method thereof

Abstract

The invention provides an electric blow pipe and a detection method thereof. The electric blowing pipe comprises an electric blowing pipe shell, the electric blowing pipe shell is provided with a front end part and a rear end part which are far away from each other in the axis direction, and the rear end part is provided with a first air outlet; the blowing nozzle assembly is arranged at the front end part of the electric blowing pipe shell; the exhaust channel is communicated with the blowing nozzle assembly and the first air outlet; the circuit board is accommodated and fixed in the electric blowing pipe shell and is integrated with a control circuit; and the air pressure sensor is connected with the exhaust channel through an air detection branch, and the air pressure sensor is fixed on the circuit board and used for converting air pressure change of the air detection branch into a corresponding first electric signal. In the detection mode, the blocking component is separated from the second air outlet, and in the playing mode, the blocking component blocks the second air outlet. By means of the air pressure detection function of an original air pressure sensor in the electric blowing tube, the functions of detecting the vital capacity, the breathing flow peak value and the first-second expiration amount of the electric blowing tube are achieved.

Description

Technical Field

[0001] This application relates to the technical field of electronic musical instruments, and particularly to an electronic wind instrument and its detection method. Background Art

[0002] An electronic wind instrument (EWI for short) is mainly used in the field of music performance. It is an electro-acoustic instrument that combines the playing method of traditional wind instruments with electronic music technology.

[0003] Existing electronic wind instruments use air pressure sensors and touch-sensitive buttons to control playing parameters such as pitch and intensity, and have basic audio effect processing functions such as reverberation and delay. However, the functions of existing electronic wind instruments are still mainly limited to music performance and basic audio processing. The potential functions of their hardware devices such as air pressure sensing are not fully developed and utilized, making it difficult to meet the needs of users for multi-functional intelligent devices.

[0004] On the other hand, health monitoring devices such as medical detection devices like vital capacity detectors, respiratory function testers, and breath detectors generally adopt independent designs, which not only increase the purchase and use costs for users, but also have problems such as poor portability of the devices and cumbersome detection processes. These professional medical devices often require professional guidance for operation, and the detection process lacks fun and interactivity, resulting in a poor user experience.

[0005] Application Content

[0006] Embodiments of this application provide an electronic wind instrument and its detection method, aiming to solve the problem that the potential functions of existing electronic wind instruments are not fully developed and utilized, making it difficult to meet the needs of users for multi-functional intelligent devices.

[0007] In a first aspect, an embodiment of the present application provides an electric wind instrument. The electric wind instrument includes: an electric wind instrument housing that extends along an axis and has a front end portion and a rear end portion that are spaced apart from each other in the axial direction, and a first air outlet is provided at the rear end portion; a blowing nozzle assembly that is disposed at the front end portion of the electric wind instrument housing to form an air inlet for gas to enter; an exhaust passage that communicates the blowing nozzle assembly and the first air outlet and is used to guide the gas entering from the air inlet to be discharged from the first air outlet; a circuit board that is housed and fixed inside the electric wind instrument housing and integrates a control circuit; a pressure sensor that is connected to the exhaust passage through a gas detection branch, and the pressure sensor is fixed on the circuit board and is used to convert the pressure change of the gas detection branch into a corresponding first electrical signal; and a blocking member. The electric wind instrument housing is further provided with a second air outlet, and the second air outlet is provided at a position close to the front end portion and far from the first air outlet. Wherein, in the detection mode, the blocking member is separated from the second air outlet, and in the playing mode, the blocking member blocks the second air outlet.

[0008] In a second aspect, an embodiment of the present application provides a detection method applied to the electric wind instrument as described above. The detection method includes: in the vital capacity detection mode, determining the starting moment when a blowing action occurs; starting from the starting moment, collecting the first electrical signal detected by the pressure sensor; when the first electrical signal is lower than a preset threshold, determining it as the ending moment; integrating the first electrical signals between the starting moment and the ending moment to obtain detection results of vital capacity, peak respiratory flow rate, and expiratory volume in the first second; and displaying the detection results of vital capacity, peak respiratory flow rate, and expiratory volume in the first second in the display device of the electric wind instrument.

[0009] An embodiment of the present application provides an electric wind instrument. It fully utilizes the air pressure detection function of the original pressure sensor in the electric wind instrument to realize the detection functions of vital capacity, peak respiratory flow rate, and expiratory volume in the first second of the electric wind instrument. When entering the detection mode, the blocking member does not block the additionally provided second air outlet, and the electric wind instrument can provide sufficient air output to avoid the influence on vital capacity detection caused by unsmooth gas discharge. When in the playing mode, the blocking member blocks the additionally provided second air outlet to ensure that the playing function of the electric wind instrument is not affected and interfered, and the control circuit can smoothly complete the corresponding audio signal processing. Description of the Drawings

[0010] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0011] Figure 1 It is a schematic structural diagram of an electric wind instrument provided by an embodiment of the present application, showing a situation in the playing mode;

[0012] Figure 2 It is a schematic structural diagram of an electric wind instrument provided by an embodiment of the present application, showing a situation in the detection mode;

[0013] Figure 3 It is a schematic diagram of an electric wind instrument provided by an embodiment of the present application;

[0014] Figure 4 It is an exploded schematic structural diagram of an electric wind instrument provided by an embodiment of the present application;

[0015] Figure 5 It is a schematic structural diagram of the mouthpiece fixing component of an electric wind instrument provided by an embodiment of the present application;

[0016] Figure 6 It is a method flow chart of the detection method provided by an embodiment of the present application;

[0017] Figure 7 It is a method flow chart of the detection method provided by another embodiment of the present application;

[0018] Figure 8 It is a schematic block diagram of the control circuit provided by an embodiment of the present application;

[0019] Figure 9 It is an output schematic diagram of the second electrical signal provided by an embodiment of the present application. Detailed implementation manners

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0021] It should be understood that when used in this specification and the appended claims, the terms "comprises" and "comprising" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0022] It should also be understood that the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. As used in the specification of this application and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0023] It should be further understood that the term "and / or" used in the specification of this application and the appended claims refers to any combination and all possible combinations of one or more of the related listed items, and includes these combinations.

[0024] Figure 1 and Figure 2 are respectively cross-sectional views of the electric wind instrument provided by the embodiments of this application in the playing mode and the detection mode. As Figure 1 shown, the electric wind instrument includes: an electric wind instrument housing 10, a blowing nozzle assembly 20, an exhaust passage 30, a circuit board 40, a pressure sensor 50, and a blocking member 60.

[0025] Among them, the electric wind instrument housing 10 extends along the axial direction and has a front end portion and a rear end portion that are far away from each other in the axial direction. A first air outlet 11 is provided at the rear end portion of the electric wind instrument housing 10. In addition to the first air outlet 11, as Figure 2 shown, the electric wind instrument housing 10 is also provided with a second air outlet 14. The second air outlet 14 is provided at a position close to the front end portion and far away from the first air outlet, and can provide a larger exhaust volume.

[0026] Specifically, the electric wind instrument housing 10 is the main support structure of the entire electric wind instrument, and an accommodation space is formed inside to accommodate and fix one or more functional modules of the electric wind instrument. Any suitable type of material, shape, and size is selected according to actual needs, and no specific limitation is made here. Exemplarily, as Figure 3 and Figure 4 shown, the electric wind instrument housing 10 can be respectively composed of an upper housing 12 and a lower housing 13. After the upper housing 12 and the lower housing 13 are spliced and fixed, the complete electric wind instrument housing 10 is formed.

[0027] The blowing nozzle assembly 20 is arranged at the front end portion of the electric wind instrument housing to form an air inlet 21 for gas to enter. Specifically, the blowing nozzle assembly 20 is jointly composed of a series of structural components and is the part that is directly in contact with the mouth of the user of the electric wind instrument.

[0028] Exemplarily, please continue to refer to Figure 1 and Figure 2 , the blowing nozzle assembly 20 includes: a nozzle fixing member 22, a nozzle inner sleeve 23, a nozzle outer sleeve 24, and a nozzle sensor 25.

[0029] Among them, the mouthpiece fixing component 22 is fixed to the front end of the electronic wind instrument housing 10, which is the main structure of the blowing mouthpiece assembly and fixes the blowing mouthpiece assembly 20 to the electronic wind instrument housing 10. The inner mouthpiece sleeve 23 is sleeved outside the mouthpiece fixing component 22. The inner mouthpiece sleeve 23 is a support sleeve made of a hard material with relatively high hardness, which can provide sufficient structural support for the blowing mouthpiece assembly 20.

[0030] The outer mouthpiece sleeve 24 is sleeved on the outer surface of the inner mouthpiece sleeve 23. The outer mouthpiece sleeve 24 is the part that directly contacts the user's mouth and covers the outermost layer of the entire blowing mouthpiece assembly 20. The outer mouthpiece sleeve 24 can be made of a relatively soft material to provide a better contact experience.

[0031] Specifically, a hollow mouthpiece channel is formed at the end of the outer mouthpiece sleeve 24, and an air inlet 21 is formed at the end of the mouthpiece channel. The gas blown out by the user's mouth enters the interior of the electronic wind instrument through the air inlet 21.

[0032] The mouthpiece sensor 25 is an electronic component for detecting the playing skills of the performer. It passes through the mouthpiece fixing component 22 and extends into the mouthpiece channel, and can sense one or more parameters such as the direction of the airflow, the blowing force, and / or the change of the mouth shape, and convert them into corresponding electrical signals. The control circuit of the electronic wind instrument can simulate the playing effect of the traditional wind instrument according to these electrical signals.

[0033] The exhaust channel 30 is a connecting pipe connecting the blowing mouthpiece assembly 20 and the first air outlet 11. It is used to guide the gas entering from the air inlet 21 to be discharged from the first air outlet 11.

[0034] Specifically, please continue to refer to Figure 1 and Figure 2 , the exhaust channel 30 is an exhaust pipe. The two ends of the exhaust pipe are respectively connected to the blowing mouthpiece assembly 20 and the first air outlet 11 to form an air flow channel between the two.

[0035] The circuit board 40 is a component that houses and integrates a series of electronic devices. It is housed and fixed inside the electronic wind instrument housing 10 to provide and support corresponding electronic functions. In this application, the circuit board 40 at least integrates a control circuit, which can perform one or more logical operation steps based on the received electrical signals to form corresponding output results. Exemplarily, the number of the circuit boards 40 is set to 2.

[0036] The pressure sensor 50 is a sensor device that can realize the conversion between air pressure and electrical signals. It is fixed on the circuit board 40 and can provide corresponding electrical signals for the aforementioned control circuit. A gas detection branch leads out from the blowing mouthpiece assembly 20 and extends to be connected to the pressure sensor 50, so that the pressure sensor 50 can collect and determine the air pressure change at the air inlet.

[0037] Specifically, please continue to refer to Figure 1 and Figure 2 , and the gas detection branch is a pressure tube 51. Both ends of the pressure tube 51 are respectively connected to the nozzle fixing member 22 and the pressure sensor 50.

[0038] The blocking member 60 is a removable member for blocking the second air outlet. It blocks or disengages from the second air outlet in different modes, so that the overall air output of the electric wind instrument changes adaptively to meet the different requirements of the playing mode and the detection mode.

[0039] Specifically, please continue to refer to Figure 1 and Figure 2 , and the blocking member 60 includes: a rubber plug main body 61 and a fixing portion 62. The rubber plug main body 61 has a size adapted to the second air outlet and blocks the second air outlet 14 after being inserted. The fixing portion 62 is connected to the rubber plug main body 61 through a flexible connecting member and is the part fixed on the electric wind instrument housing 10.

[0040] Thus, even when the rubber plug main body 61 is pulled out and disengaged from the second air outlet, it will maintain the connection with the electric wind instrument housing 10 through the fixing portion 62, which is beneficial to improving the overall convenience of use of the blocking member 60 and is not easy to lose.

[0041] In the actual use process, the electric wind instrument provided by the embodiment of the present application is configured to be able to switch between two different modes (hereinafter simply referred to as the playing mode and the detection mode respectively).

[0042] When the electric wind instrument is in the playing mode, the blocking member 60 blocks the second air outlet 14, and the gas blown in by the user is detected by the pressure sensor 50 and the nozzle sensor 25 respectively. The gas blown into the electric wind instrument can only be discharged through the first air outlet 11. Among them, the pressure sensor is responsible for detecting the overall air pressure, while the nozzle sensor is responsible for detecting the detailed playing skills. The two cooperate with each other so that the control circuit of the electric wind instrument can simulate a playing effect close to that of a traditional wind instrument.

[0043] When the electric wind instrument is in the detection mode, the blocking member 60 is pulled out from the second air outlet 14, and a large amount of gas generated by the user's exhalation action can be discharged through the first air outlet 11 and the second air outlet 14 at the same time. The pressure sensor 50 is responsible for sampling and detecting the air pressure data during the period when the user makes a blowing action.

[0044] After receiving the air pressure detection result of the pressure sensor 50, the control circuit of the electric wind instrument integrates the air pressure detection result during the blowing action period in terms of time, and then can obtain the total amount of gas during this period, so as to obtain the detection result of the vital capacity.

[0045] In some embodiments, in addition to using the original air pressure sensor 50 to complete the vital capacity detection function, please continue to refer to Figure 1 and Figure 2 , the electric wind instrument may further include an additionally configured gas sensor 70. By utilizing the detection function of the gas sensor 70 for the concentration of specific gases, the detection function of the electric wind instrument can be further enriched.

[0046] Among them, the gas sensor 70 is fixedly arranged inside the housing 10 of the electric wind instrument, and is used to convert the concentration of the target gas into a corresponding second electrical signal. The control circuit of the electric wind instrument compares the received second electrical signal with the pre-set and configured reference data, so as to determine whether there is a situation where the concentration of a specific gas in the gas exhaled by the current user exceeds the standard.

[0047] Exemplarily, the gas sensor 70 is a hydrogen sulfide sensor. In the technical field, when a person has a bad breath, the hydrogen sulfide content in the exhaled gas will increase. Thus, the control circuit can compare the hydrogen sulfide content data obtained by detecting through the gas sensor 70 with the reference value (for example, the hydrogen sulfide content in the exhaled gas of a normal person), and distinguish the current breath situation of the user according to the comparison result.

[0048] It should be noted that according to the actual needs, the electric wind instrument may also be provided with one or more interaction devices or other functional devices to provide more abundant functions and further improve the use experience of the electric wind instrument.

[0049] Exemplarily, please continue to refer to Figure 1 and Figure 2 , the electric wind instrument further includes: a plurality of front shell buttons 81, a display device 82, a bottom shell button 83, and a speaker 84.

[0050] Among them, the front shell buttons 81 and the bottom shell buttons 83 are interaction components exposed outside the housing 10 of the electric wind instrument, and can be used to collect the operation instructions of the user and provide them to the control circuit. The specific operation and control forms of each front shell button 81 and bottom shell button 83 can be configured according to the actual needs, and will not be elaborated here.

[0051] The display device 82 is an interaction device that presents and displays information to the user in the form of visual information. Specifically, any suitable type of display device can be selected according to the actual needs. For example, a liquid crystal display screen or an LED display screen.

[0052] The loudspeaker 84 is a transducer device capable of converting an electrical signal into a sound signal. In the performance mode, the control circuit can control the loudspeaker 84 to emit corresponding simulated performance sounds. Further, the loudspeaker 84 can also be configured to emit a prompt sound under the control of the control circuit in the detection mode, to prompt the user of the precautions for performing an exhalation action when performing a vital capacity detection or a breath detection. For example, to prompt that the detection has started, to play the prompt items during the vital capacity detection, and to announce the detection results, etc.

[0053] In some embodiments, as Figure 5 shown, the mouthpiece fixing member 22 includes: a columnar main body 221 and a connecting portion 222.

[0054] Wherein, the inside of the columnar main body 221 is hollow, forming a channel allowing gas to flow through. The connecting portion 222 is a protruding member extending outward from one end of the columnar main body 221. It is a structural member that is mutually connected with the columnar main body 221.

[0055] Specifically, the aforementioned gas detection branch 51 and the exhaust passage 30 are both connected to the mouthpiece assembly 20 through the connecting portion 222. Please continue to refer to Figure 5 . The connecting portion 222 can be generally square in structure and has a plurality of different end faces.

[0056] One end face of the connecting portion 222 is an open end 222a, and the second air outlet 14 is opened at a position corresponding to the open end of the connecting portion, so that gas can be quickly discharged from the second air outlet 14.

[0057] The connecting portion 222 can be respectively provided with an exhaust interface 222b and a detection air inlet 222c on other end faces. One end of the exhaust pipe as the exhaust passage 30 is connected to the exhaust interface 222b, and the other end is connected to the first air outlet. One end of the pressure pipe as the gas detection branch 51 is connected to the detection air inlet 222c, and the other end of the pressure pipe is connected to the pressure sensor.

[0058] Please continue to refer to Figure 5 . The exhaust interface 222b and the detection air inlet 222c are respectively opened on different end faces of the connecting portion 222 for the convenience of connecting different pipes. Alternatively, the exhaust interface 222b and the detection air inlet 222c can also be provided on the same end face.

[0059] In the electric wind instrument, please continue to refer to Figure 1 and Figure 2, at least a part of the columnar main body 221 is fixedly arranged at the front end of the electric wind instrument housing 10, so that the connecting part 222 is located inside the electric wind instrument housing. The inner nozzle sleeve 23 is adaptively sleeved on the outer peripheral surface of the structural part of the columnar main body 221 protruding from the front end of the electric wind instrument housing 10. The nozzle passage formed by the outer nozzle sleeve 24 communicates with the columnar main body 221, and the gas exhaled by the user can enter the columnar main body 221.

[0060] In some embodiments, in order to enhance airtightness, as Figure 4 shown, the blowing nozzle assembly further includes: a plurality of sealing rings 26.

[0061] Among them, as Figure 5 shown, a plurality of circumferentially extending grooves 221a are formed on the outer surface of the columnar main body 221. A sealing ring 26 is received in a groove 221a and abuts against the inner surface of the inner nozzle sleeve 23.

[0062] The sealing ring 26 is an elastic structural member. Through the elastic deformation of the sealing ring 26, the gap between the inner surface of the inner nozzle sleeve 23 and the outer surface of the columnar main body 221 can be filled, so as to form a tight closed structure.

[0063] Exemplarily, Figure 4 shows the situation where 2 sealing rings 26 are provided. The number of the sealing rings 26 and the grooves 221a can also be adjusted according to actual needs.

[0064] In some embodiments, in order to further improve the user experience of the electric wind instrument, the electric wind instrument can also be provided with one or more interaction devices to facilitate the user's operation and provide corresponding interaction information. The electric wind instrument further includes: the aforementioned display device 82 and the mode switching device.

[0065] Among them, the display device 82 is arranged on the electric wind instrument housing 10. It can be any suitable type of display device capable of displaying visual information, including but not limited to a liquid crystal display screen, etc. Through the display device 82, the user can conveniently and intuitively understand and determine the current state of the electric wind instrument and feedback information such as detection results through visual information.

[0066] The mode switching device is an interaction device arranged on the electric wind instrument housing and used for collecting user instructions. It can be any suitable type of device capable of collecting user instructions and forming corresponding instruction signals, such as the aforementioned bottom shell button 84. The user can conveniently switch between the detection mode and the performance mode through the mode switching device, so that the electric wind instrument provides the functions required by the user currently.

[0067] In some embodiments, as described above, when the electronic wind instrument has both a vital capacity detection function and a breath detection function, the mode switching device can further provide a detection function switching in the detection mode. For example, the mode switching device can also switch the electronic wind instrument in the detection mode between the vital capacity detection mode and the breath detection mode by means of encoder switching, ensuring that the electronic wind instrument can correctly execute the detection function that the user currently wants to use.

[0068] In some embodiments, in addition to the control circuit, the electronic wind instrument further includes: a wireless communication module. The wireless communication module is disposed within the housing 10 of the electronic wind instrument and is used to establish a wireless communication connection between the control circuit and an external device. Specifically, any suitable type of wireless communication module can be selected, including but not limited to a Bluetooth module.

[0069] In summary, the electronic wind instrument provided by the embodiments of the present application adopts an integrated design. Through structural optimization, it embeds health monitoring related functional modules into the electronic wind instrument, realizes the integration function of music performance and health detection, and improves the practicality of the device. Moreover, the health detection and music performance functions can be flexibly switched without interference. The device volume of the electronic wind instrument is equivalent to that of a common electronic wind instrument, and it will not increase the device volume even with multiple additional functions, making it suitable for carrying and using.

[0070] Based on the electronic wind instrument provided by the embodiments of the present application, the present application further provides a detection method. The detection method can be executed by the control circuit in the aforementioned electronic wind instrument to implement the detection functions of vital capacity, peak respiratory flow rate, and forced expiratory volume in one second. As Figure 6 shown, the detection method includes:

[0071] S601. In the vital capacity detection mode, determine the starting moment when a blowing action occurs.

[0072] The "vital capacity detection mode" refers to the working mode when the electronic wind instrument is performing the function of detecting vital capacity. The control circuit of the electronic wind instrument can detect the user's blowing action in any suitable manner and use the moment when the blowing action occurs as the starting moment of the vital capacity detection time period.

[0073] S602. Starting from the starting moment, collect the first electrical signal detected by the pressure sensor.

[0074] As described above, the pressure sensor generates a corresponding first electrical signal based on the user's blowing force, and the control circuit can determine the user's blowing force based on the strength of the generated first electrical signal.

[0075] S603. When the first electrical signal is lower than a preset threshold, determine it as the ending moment.

[0076] Among them, the preset threshold is an empirical value, which can be set by technicians according to actual needs. When the first electrical signal is lower than the preset threshold, it indicates that the user has ended the blowing action, and this can be used as the end moment of the vital capacity detection time period.

[0077] S604. Integrate the first electrical signal between the start moment and the end moment to obtain the detection results of vital capacity, peak respiratory flow rate, and expiratory volume in the first second.

[0078] Among them, vital capacity (VC) refers to the maximum volume of gas that a person can exhale after taking a maximum inhalation and then exhaling as much as possible. The basic principle of measuring vital capacity is to monitor the change in gas flow in the lungs.

[0079] Thus, the change in air pressure detected by the pressure sensor is approximately regarded as the change in air flow. By integrating the relationship between air pressure and time using the following formula (1), the volume of gas passed by the user during the entire time period of the exhaling action as much as possible can be obtained.

[0080] V exp = ∫P(t)dt Formula (1)

[0081] Among them, P(t) is the change in air pressure with time, and V exp is the integration result.

[0082] Specifically, the integration result (i.e., the vital capacity detection result, with the unit of L) can be obtained through numerical calculation in a discretized manner, such as using numerical integration calculation methods such as the trapezoidal method or Simpson's rule.

[0083] S605. Display the detection results of vital capacity, peak respiratory flow rate, and expiratory volume in the first second on the display device of the electric wind instrument.

[0084] Among them, after the control circuit calculates the integration result, it outputs a corresponding control signal to control the display device to present the specific detection results to the user in the form of visual information. The detection results include vital capacity (unit: L), peak respiratory flow rate (unit: L / min), and expiratory volume in the first second (unit: L).

[0085] Preferably, when the electric wind instrument is additionally equipped with a wireless communication module, the integration result calculated by the control circuit can also be transmitted to an external electronic device for display through wireless communication. Further, the external electronic device (such as a smart phone) can also display the evaluation result of the user's health status through the analysis and synthesis of historical data.

[0086] In some other embodiments, when the electric wind instrument is equipped with an additional hydrogen sulfide sensor, the control circuit of the electric wind instrument can also execute the detection method as shown in Figure 7 to complete the detection of the user's breath. As shown in Figure 7 , the detection method includes:

[0087] S701. In the breath detection mode, display a preset countdown time on the display device.

[0088] Among them, the "breath detection mode" refers to the working mode when the electric wind instrument is performing the function of detecting the user's breath. The "countdown time" is a time value preset by the technical personnel, which can provide the user with sufficient preparation time to ensure the smooth completion of the breath detection.

[0089] S702. After the countdown time ends, obtain the second electrical signal of the hydrogen sulfide sensor.

[0090] Among them, the end of the countdown time refers to the moment after the time value set in the previous step S901. At this time, the control circuit samples the second electrical signal of the hydrogen sulfide sensor to obtain the hydrogen sulfide concentration in the user's exhaled gas.

[0091] When the user's breath is relatively poor, the hydrogen sulfide content will increase. The control circuit indirectly realizes the detection of the breath through the hydrogen sulfide concentration / content based on such a principle.

[0092] As shown in Figure 9 , the concentration of hydrogen sulfide in the exhaled gas is proportional to the voltage value of the second electrical signal output by the hydrogen sulfide sensor. The control circuit can determine the concentration of hydrogen sulfide gas by detecting the strength of the voltage signal output by the hydrogen sulfide sensor through a corresponding data interface (for example, an analog-to-digital conversion interface).

[0093] S703. Determine the comparison result between the second electrical signal and the reference value.

[0094] Among them, the reference value is also a preset value, which can be determined by the technical personnel according to the hydrogen sulfide gas concentration in the exhaled gas under normal breath conditions. Based on the comparison result between the currently collected second electrical signal and the reference value, the user's breath condition can be correspondingly determined and represented.

[0095] S704. Display the comparison result on the display device.

[0096] Among them, the "comparison result" can be presented in a variety of different forms. For example, the comparison result can simply be a comparison of magnitudes, that is, whether the second electrical signal is greater than a reference value, represented by a binary representation such as breath healthy / unhealthy. Another example is that the comparison result can also be a result combining the degree of difference between the two, that is, the magnitude of the difference between the second electrical signal and the reference value, represented by a multi-level judgment result such as breath healthy, breath unhealthy, and breath very unhealthy (corresponding to different degrees of difference).

[0097] The above detection method can be implemented in the form of a computer program, and the computer program can run on a computer device.

[0098] Please refer to Figure 8 , Figure 8 which is a schematic block diagram of the control circuit provided by an embodiment of the present application. The control circuit 800 is one implementation form of the control circuit of an electronic wind instrument.

[0099] Refer to Figure 8 , the control circuit 800 includes a processor 802 and a memory connected through a device bus 801. Among them, the memory may include a storage medium 803 and an internal memory 804.

[0100] The storage medium 803 can store an operating system 8031 and a computer program 8032. When the computer program 8032 is executed, it can cause the processor 802 to execute the aforementioned detection method.

[0101] The processor 802 is used to provide computing and control capabilities to support the operation of the entire electronic wind instrument.

[0102] The internal memory 804 provides an environment for the operation of the computer program 8032 in the storage medium 803. When the computer program 8032 is executed by the processor 802, it can cause the processor 802 to execute the aforementioned detection method.

[0103] Those skilled in the art can understand that Figure 8 the structure shown in

[0104] It should be understood that in the embodiments of the present application, the processor 802 may be a central processing unit (CPU), and the processor 502 may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0105] In another embodiment of the present application, a computer-readable storage medium is provided. The computer-readable storage medium may be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the detection method disclosed in the embodiments of the present application is implemented.

[0106] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described devices, apparatuses, and units can refer to the corresponding processes in the foregoing method embodiments, and will not be described herein again. Those of ordinary skill in the art can realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the components and steps of the examples have been generally described according to their functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0107] In several embodiments provided by the present application, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. Units with the same function may also be integrated into a single unit. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. In addition, the displayed or discussed couplings, direct couplings, or communication connections to each other may be indirect couplings or communication connections through some interfaces, devices, or units, and may also be electrical, mechanical, or other forms of connection.

[0108] The unit described as a separation component may or may not be physically separated. The component shown as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present application.

[0109] In addition, each functional unit in the embodiments of the present application may be integrated in a processing unit, may exist separately as individual physical units, or two or more units may be integrated in one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of a software functional unit.

[0110] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a background server, or a network device, etc.) to execute all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROMs), magnetic disks, or optical discs that can store program codes.

[0111] The electronic wind instrument provided by the embodiments of the present application realizes function integration. One device can complete music performance and health monitoring, simplifies the user's device requirements, and reduces the usage cost. The product has both entertainment and health management functions, is applicable to music education, home health management, and the medical market, and has good application prospects.

[0112] Moreover, by optimizing the gas detection channel and high-sensitivity sensors, high-precision and rapid response for vital capacity, peak respiratory flow rate, expiratory volume in the first second, and halitosis detection are achieved. The detection results can also be viewed through the built-in display device or an external electronic device, facilitating the user to understand their own health status at any time.

[0113] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An electric blowpipe, characterized in that: include: An electric blowpipe housing, the electric blowpipe housing extending along the axial direction, having a front end and a rear end away from each other in the axial direction, the rear end being provided with a first air outlet; An air blowing nozzle assembly, wherein the air blowing nozzle assembly is arranged at the front end of the electric blowpipe housing to form an air inlet for gas to enter; An exhaust channel, the exhaust channel being connected to the blowing nozzle assembly and the first air outlet, and being used for guiding the gas entering the air inlet to be discharged from the first air outlet; A circuit board, which is accommodated and fixed inside the electric blowpipe housing and is integrated with a control circuit; An air pressure sensor, the air pressure sensor is connected to the exhaust channel through a gas detection branch, the air pressure sensor is fixed on the circuit board, and is used to convert the air pressure change of the gas detection branch into a corresponding first electrical signal; as well as The electric blowpipe housing is also provided with a second air outlet, and the second air outlet is provided at a position close to the front end and away from the first air outlet; Wherein, in the detection mode, the blocking component is separated from the second air outlet, and in the performance mode, the blocking component blocks the second air outlet.

2. The electric blowpipe according to claim 1, characterized in that: The blowing nozzle assembly comprises: A nozzle fixing component, wherein the nozzle fixing component is fixed to the front end of the electric blowpipe housing; A mouthpiece inner sleeve, wherein the mouthpiece inner sleeve is sleeved outside the mouthpiece fixing component; A mouthpiece outer sleeve, wherein the mouthpiece outer sleeve is sleeved on the outer surface of the mouthpiece inner sleeve, the end of the mouthpiece outer sleeve forms a hollow mouthpiece channel, and the end of the mouthpiece channel forms the air inlet, and A mouthpiece sensor, one end of which is connected to the control circuit, and the other end of which passes through the mouthpiece fixing component and extends into the mouthpiece channel.

3. The electric blowpipe according to claim 2, characterized in that: The nozzle fixing component comprises: Hollow cylindrical body, A connecting portion extending outward from one end of the columnar body and communicating with the columnar body; Wherein, at least a part of the columnar body is fixedly arranged at the front end of the electric blowpipe housing, so that the connecting part is located inside the electric blowpipe housing.

4. The electric blowpipe according to claim 3, characterized in that: One end of the connecting portion is open, and the second air outlet is provided at a position corresponding to the open end of the connecting portion; The exhaust passage is an exhaust pipe, one end of the exhaust pipe is connected to the exhaust interface of the connecting part, and the other end of the exhaust pipe is connected to the first air outlet; The gas detection branch is an air pressure tube, one end of which is connected to the detection air inlet of the connecting part, and the other end of which is connected to the air pressure sensor; Wherein, the exhaust port and the detection air inlet are provided on different end surfaces of the connecting portion.

5. The electric blowpipe according to claim 3, characterized in that: The blowing nozzle assembly also includes: a plurality of sealing rings; The outer surface of the columnar body is provided with a plurality of grooves extending in the circumferential direction. One sealing ring is accommodated in one of the grooves and abuts against the inner surface of the inner sleeve of the blowing nozzle.

6. The electric blowpipe according to claim 1, characterized in that: The blocking component comprises: a rubber plug body, wherein the rubber plug body has a size adapted to the second air outlet so as to block the second air outlet, A fixing part, wherein the fixing part is connected to the rubber plug body through a flexible connecting component, and the fixing part is fixed on the electric blowpipe housing.

7. The electric blowpipe according to claim 1, characterized in that: Also includes: A gas sensor is fixedly arranged inside the electric blowpipe housing and is used for converting the concentration of the target gas into a corresponding second electrical signal.

8. The electric blowpipe according to claim 1, characterized in that: Also includes: A display device, the display device is arranged on the housing of the electric blowpipe and is used to display visual information; A mode switching device, which is arranged on the housing of the electric blowpipe and is used to collect user instructions so as to switch the electric blowpipe between the detection mode and the performance mode; A wireless communication module is arranged in the electric blowpipe housing and is used to establish a communication connection between the control circuit and an external device.

9. A detection method, applied to the electric blowpipe as claimed in any one of claims 1 to 8, characterized in that: The detection method comprises: In the spirometry mode, determine the start time of the blowing action; From the starting moment, collecting a first electrical signal detected by the air pressure sensor; When the first electrical signal is lower than a preset threshold, determining it as the end time; Integrate the first electrical signal between the start time and the end time to obtain vital capacity, respiratory flow peak, and first second expiratory volume detection results; The vital capacity test result is displayed on the display device of the electric blowpipe.

10. The detection method according to claim 9, characterized in that: The gas sensor of the electric blowpipe is a hydrogen sulfide sensor, and the detection method further comprises: In the breath detection mode, a preset countdown time is displayed on the display device; After the countdown time ends, obtaining a second electrical signal from the hydrogen sulfide sensor; determining a comparison result between the second electrical signal and a reference value; The comparison result is displayed in the display device.

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