CN216394029U - Cough recording device and cough diagnosis system - Google Patents

Abstract

The embodiment of the utility model provides a cough recording device and a cough diagnosis system. The sound acquisition module comprises a sound acquisition unit and a first microprocessor, and the sound acquisition unit is a bone conduction sensor; the myoelectricity acquisition module comprises a myoelectricity acquisition unit and a second microprocessor. The sound collection module is used for being placed on the throat of a human body and used for collecting a first audio signal and transmitting the first audio signal to the first microprocessor. The myoelectric acquisition module is used for being placed at the diaphragm part of a human body, acquiring a first myoelectric signal and transmitting the first myoelectric signal to the second microprocessor. The first microprocessor is in communication connection with the second microprocessor, the first microprocessor is further used for transmitting the first audio signal to the second microprocessor, and the second microprocessor is further used for storing the first audio signal and the first electromyographic signal.

Description

Cough recording device and cough diagnosis system

Technical Field

The embodiment of the utility model relates to the field of medical instruments, in particular to a cough recording device and a cough diagnosis system.

Background

Cough is a common disease of the respiratory system, and parameters such as intensity, occurrence frequency, duration and the like of the cough can be used as clinically important reference information, so that the cough diagnostic method has important clinical significance for diagnosis and treatment of certain diseases.

In the prior art, the mode of microphone reception is usually adopted to collect human audio signal with discernment and record cough data, specifically, set up a microphone near human throat, be connected to the collection box of fixing between human waist with the microphone through the connecting wire, the collection box is gathered microphone sound and is discerned, generates cough data and saves. When the method is used for sound reception, non-cough sound signals (such as speaking or snoring) emitted by a human body or cough sound, speaking sound and the like of the surrounding environment can be collected, so that the accuracy of cough recognition is influenced.

Disclosure of Invention

The embodiment of the utility model provides a cough recording device and a cough diagnosis system, which can improve the accuracy of cough identification.

In order to solve the above technical problem, one technical solution adopted by the embodiments of the present invention is: in a first aspect, a cough recording device is provided, which includes a sound collection module and a myoelectricity collection module, wherein the sound collection module includes a sound collection unit and a first microprocessor, and the myoelectricity collection module includes a myoelectricity collection unit and a second microprocessor.

The voice acquisition module is arranged at the throat of a human body, the voice acquisition unit is connected with the first microprocessor and is used for acquiring a first audio signal and transmitting the first audio signal to the first microprocessor, and the voice acquisition unit is a bone conduction sensor; the myoelectricity acquisition module is arranged at the diaphragm part of a human body, the myoelectricity acquisition unit is connected with the second microprocessor, and the myoelectricity acquisition unit is used for acquiring a first myoelectricity signal and transmitting the first myoelectricity signal to the second microprocessor.

In some embodiments, the cough recording device further comprises a data storage module. The data storage module is connected with the second microprocessor, and the second microprocessor is further used for receiving the first audio signal sent by the first microprocessor and storing the first audio signal and the first electromyographic signal in the data storage module.

In some embodiments, the myoelectricity collection unit includes a first electrode sheet, a second electrode sheet, and a lead wire. The first electrode plate is used for being attached to a first position of human diaphragm, the second electrode plate is used for being attached to a second position of the human diaphragm, and the first electrode plate and the second electrode plate transmit the collected first electromyographic signals to the second microprocessor through the lead wire.

In some embodiments, the first microprocessor includes a first bluetooth chip and the second microprocessor includes a second bluetooth chip. The first microprocessor and the second microprocessor are in wireless communication connection with each other through the first Bluetooth chip and the second Bluetooth chip.

In some embodiments, the sound collection module further comprises a first power supply unit. The first power supply unit is connected with the first microprocessor and the sound acquisition unit respectively and used for supplying power to the first microprocessor and the sound acquisition unit.

In some embodiments, the myoelectric acquisition module further includes a second power supply unit. The second power supply unit is connected with the second microprocessor and used for supplying power to the second microprocessor.

In some embodiments, the sound collection module further comprises a first switch unit. The first switch unit is connected with the first microprocessor and used for controlling whether the sound collection module works or not.

In some embodiments, the myoelectric acquisition module further includes a second switching unit. The second switch unit is connected with the second microprocessor and used for controlling whether the myoelectricity acquisition module works or not.

In some embodiments, the sound collection module further includes a first indication unit, and the myoelectricity collection module further includes a second indication unit. The first indicating unit is connected with the first microprocessor and used for indicating the working state of the sound collecting module; and the second indicating unit is connected with the second microprocessor and used for indicating the working state of the myoelectricity acquisition module.

In a second aspect, a cough diagnostic system is provided that includes an upper computer and a cough recording device. The upper computer is connected with the cough recording device and used for acquiring first audio signal data and first electromyographic signal data in a data storage module of the cough recording device and processing the first audio signal and the first electromyographic signal so as to identify a cough signal.

The beneficial effects of the embodiment of the utility model are as follows: different from the prior art, the utility model provides a cough recording device which comprises a sound acquisition module and a myoelectricity acquisition module, wherein a sound acquisition unit in the sound acquisition module is a bone conduction sensor. The interference of surrounding environment sounds can be effectively reduced by using a bone conduction sensor to collect sounds; in addition, when a person coughs, besides sound, the cough-relieving music-based music recognition method has another obvious characteristic that diaphragm can move upwards obviously, so that the cough behavior can be further recognized by a method for monitoring the myoelectric signals of the diaphragm, interference signals in the audio signals collected by the sound collection module can be removed by referring to the myoelectric signals of the diaphragm of the person collected by the myoelectric collection module, and the accuracy of cough recognition is improved.

Drawings

One or more embodiments are illustrated by the accompanying figures in the drawings that correspond thereto and are not to be construed as limiting the embodiments, wherein elements/modules and steps having the same reference numerals are represented by like elements/modules and steps, unless otherwise specified, and the drawings are not to scale.

Fig. 1a is a schematic structural diagram of a cough recording apparatus according to an embodiment of the present invention;

fig. 1b is a schematic circuit diagram of a bone conduction sensor according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another cough recording device provided in the embodiment of the present invention;

fig. 3a is a schematic structural diagram of another cough recording device provided in the embodiment of the present invention;

fig. 3b is a schematic circuit structure diagram of a bluetooth chip according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another cough recording device provided in the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a cough diagnostic system according to an embodiment of the present invention;

fig. 6 is a schematic diagram illustrating operation of a cough diagnostic system according to an embodiment of the present invention.

Detailed Description

The present application will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present application, but are not intended to limit the utility model in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the application. All falling within the scope of protection of the present application.

In order to facilitate an understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific embodiments. 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 application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It should be noted that, if not conflicted, the various features of the embodiments of the utility model may be combined with each other within the scope of protection of the present application. In addition, although the functional blocks are divided in the device diagram, in some cases, the blocks may be divided differently from those in the device. Further, the terms "first," "second," and the like, as used herein, do not limit the data and the execution order, but merely distinguish the same items or similar items having substantially the same functions and actions.

Referring to fig. 1a, fig. 1a is a schematic structural block diagram of a cough recording apparatus 100 according to an embodiment of the present invention, which includes a sound collection module 10 and a myoelectric collection module 11, where the sound collection module 10 includes a sound collection unit and a first microprocessor, the myoelectric collection module 11 includes a myoelectric collection unit and a second microprocessor, and the sound collection unit is a bone conduction sensor.

The sound collection module 10 is arranged on the throat of a human body, the sound collection unit is connected with the first microprocessor, and the sound collection unit is used for collecting a first audio signal and transmitting the first audio signal to the first microprocessor.

The myoelectric signal acquisition module 11 is arranged at the diaphragm part of the human body, the myoelectric acquisition unit is connected with the second microprocessor, and the myoelectric acquisition unit is used for acquiring a first myoelectric signal and transmitting the first myoelectric signal to the second microprocessor.

In some embodiments, when the first microprocessor detects that the first audio signal is greater than a first threshold, then storing the first audio signal and recording a current time as a first time; when the first audio signal is detected to be smaller than the first threshold value, stopping storing and recording the current time as a second time; obtaining a duration of the first audio signal from the first time and the second time; when the duration of the first audio signal exceeds a second threshold, the first audio signal is defined as a valid audio signal, and a timestamp data header is added to the valid audio signal. The first threshold is set to reduce the interference of ambient sound and the interference of non-cough sound (such as speaking, snoring, etc.) emitted by the human body, and the second threshold is set to reduce the interference of accidental cough or sound to the measuring signal.

In some embodiments, when the second microprocessor detects that the first electromyographic signal is greater than a third threshold value, storing the first electromyographic signal and recording the current time as a third time; when the first electromyographic signal is detected to be smaller than a third threshold value, stopping storing and recording the current time as a fourth time; obtaining the duration time of the first electromyographic signal according to the third time and the fourth time; when the duration time of the first electromyographic signal exceeds a fourth threshold value, defining the first electromyographic signal as a valid electromyographic signal, and adding a timestamp data header to the valid electromyographic signal. The third threshold is set to minimize interference with diaphragm motion caused by other non-coughing events, and the fourth threshold is set to minimize interference with the movement of the diaphragm caused by coughing events.

In some embodiments, the bone conduction sensor is model Lis25ba, and the peripheral circuit thereof can refer to the schematic structural diagram of the circuit shown in FIG. 1 b. In this embodiment, the bone conduction sensor transmits a first audio signal to the first microprocessor over the I2C bus.

The utility model provides a cough recording device which comprises a sound acquisition module and a myoelectricity acquisition module, wherein a sound acquisition unit in the sound acquisition module is a bone conduction sensor. Compared with the common technical scheme of using a microphone to receive sound and recording the cough behavior only according to the sound signal, the bone conduction sensor is used for receiving the sound, the myoelectric acquisition module is additionally arranged, the bone conduction mode is used for receiving the sound, and the interference of the sound of the surrounding environment can be effectively reduced; in addition, based on the characteristic that the diaphragm moves upwards when a cough behavior occurs in a human body, the cough behavior can be further identified by a method for monitoring the myoelectric signals of the diaphragm, interference signals in the audio signals collected by the sound collection module can be removed by referring to the myoelectric signals of the diaphragm of the human body collected by the myoelectric collection module, and therefore the accuracy of cough identification is improved.

In some embodiments, referring to fig. 1a again, the cough recording apparatus 100 further includes a data storage module 12, the data storage module 12 is connected to a second microprocessor, and the second microprocessor is further configured to receive the first audio signal sent by the first microprocessor and store the first audio signal and the first electromyographic signal in the data storage module. The data storage module 12 is a large-capacity storage device (such as an SD card, a mobile hard disk, etc.), and can be used to store multiple-day and multiple-time historical detection data received from the second microprocessor according to actual needs, so as to ensure the richness of the data and facilitate subsequent diagnostic analysis. The first microprocessor and the second microprocessor and the data storage module 12 may be connected by wire or wirelessly, and are not limited herein.

In some embodiments, referring to fig. 2, the myoelectricity collecting unit in the myoelectricity collecting module 11 includes a first electrode plate, a second electrode plate and a lead wire. The first electrode plate is used for being attached to a first position of human diaphragm, the second electrode plate is used for being attached to a second position of the human diaphragm, and the first electrode plate and the second electrode plate are used for collecting human diaphragm myoelectric signals and transmitting the signals to the second microcontroller through the lead wires.

In some embodiments, to obtain more accurate sampling data, the first position is disposed between the 6 th and 7 th ribs of the human body and on the midperpendicular of the ribs of the human body, and the second position is disposed between the 6 th and 7 th ribs of the human body and on a side of the midperpendicular of the ribs of the human body closer to the right of the heart.

In some embodiments, referring to fig. 3a, the first microprocessor includes a first bluetooth chip, the second microprocessor includes a second bluetooth chip, and the first microprocessor and the second microprocessor establish a wireless communication connection through the first bluetooth chip and the second bluetooth chip.

In still other embodiments, the first bluetooth chip and the second bluetooth chip may be the same or different bluetooth chips. Preferably, the model of the bluetooth chip may be NRF52832, and its peripheral circuit can refer to the schematic structural diagram of the circuit shown in fig. 3 b.

In some embodiments, the first bluetooth chip and the second bluetooth chip operate as follows: when the cough recording device 100 starts to work, the first bluetooth chip starts bluetooth broadcasting, the second bluetooth chip starts to scan the bluetooth broadcasting, and then bluetooth connection is automatically completed. After first bluetooth chip pairs with the second bluetooth chip and is connected, the second bluetooth chip sends local time and the order of beginning to gather to first bluetooth chip through the bluetooth, and after the bluetooth was sent successfully, the myoelectricity acquisition unit was controlled to the second bluetooth chip after 5 seconds and is got into the signal acquisition state, and first bluetooth chip sets up local time after receiving the bluetooth data, and the sound acquisition unit is controlled after 5 seconds and is got into the signal acquisition state.

If the current Bluetooth is in an idle state, the first Bluetooth chip transmits the acquired first audio signal data to the second Bluetooth chip through the Bluetooth, and if the Bluetooth is in a transmission state, the data is stored in Flash of the chip and is transmitted again when the Bluetooth is idle.

In some embodiments, referring to fig. 4, the sound collection module 10 further includes a first power supply unit, and the myoelectricity collection module further includes a second power supply unit. The first power supply unit is respectively connected with the first microprocessor and the sound acquisition unit and used for supplying power to the first microprocessor and the sound acquisition unit; the second power supply unit is connected with the second microprocessor and used for supplying power to the second microprocessor. The form of power supply is not limited herein, and for example, in some embodiments, in order to make the cough recording apparatus smaller and more convenient to use, lithium batteries may be used as the first power supply unit and the second power supply unit for power supply.

In some embodiments, referring to fig. 4 again, the sound collection module 10 further includes a first switch unit, and the myoelectricity collection module 11 further includes a second switch unit;

the first switch unit is connected with the first microprocessor and used for controlling whether the sound collection module 10 works, and the second switch unit is connected with the second microprocessor and used for controlling whether the myoelectricity collection module 11 works.

In some embodiments, referring to fig. 4 again, the sound collection module 10 further includes a first indication unit, and the myoelectricity collection module 11 further includes a second indication unit;

the first indicating unit is connected with the first microprocessor and used for indicating the working state of the sound collecting module 10, and the second indicating unit is connected with the second microprocessor and used for indicating the working state of the myoelectricity collecting module 11.

In some embodiments, the first indication unit and the second indication unit are LED lamps, when the sound collection module 10 and the myoelectricity collection module 11 are started, the LED lamps enter a flash state, which indicates that the sound collection module 10 and the myoelectricity collection module 11 are working normally, and when the LED lamps are not on, which indicates that the sound collection module 10 and the myoelectricity collection module 11 are out of order; when the LED lamp enters a slow flashing state, the sound acquisition module 10 and the myoelectricity acquisition module 11 are successfully communicated; when the LED lamp enters a normally on state, it indicates that the sound collection module 10 and the myoelectricity collection module 11 are collecting data.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a cough diagnostic system 1000 according to an embodiment of the present invention. The cough diagnosis system includes a cough recording device 100 and an upper computer 200, the upper computer 200 is in communication connection with the cough recording device 100, in some embodiments, a USB data line may be used to transmit data, in other embodiments, data may also be transmitted in a wireless connection manner, and the data transmission manner is not limited herein.

The upper computer 200 is configured to obtain data in a second microprocessor or a data storage device in the cough recording apparatus 100, further process the data by using an algorithm, thereby accurately identifying a cough signal, and generate a report according to parameters of intensity, occurrence frequency, and duration of the cough signal, so as to provide a diagnosis basis for a doctor.

Referring to fig. 6, fig. 6 is a schematic diagram illustrating an operation of a cough diagnostic system according to an embodiment of the present invention. The cough diagnosis system comprises a cough recording device and an upper computer, wherein the cough recording device comprises a sound acquisition module, a myoelectricity acquisition module and an SD card.

The specific operation of the cough diagnosis system of the present embodiment is as follows:

the built-in lithium cell power supply of sound collection module and flesh electricity collection module when carrying out cough monitoring, wears the recorder that coughs at human corresponding position, and sound collection module pastes in human throat department, and human diaphragm department is arranged in to flesh electricity collection module. Two electrode plates of the myoelectricity acquisition module are respectively attached to a P point and an N point of human diaphragm, the P point is located between the 6 th rib and the 7 th rib of the human body and is located on the perpendicular bisector of the rib of the human body, and the N point is located between the 6 th rib and the 7 th rib of the human body and is located on one side, close to the heart, of the perpendicular bisector of the rib of the human body.

The myoelectricity collection module is started, the LED lamp enters a flash state after the device is started. The sound collection module is used as a Bluetooth slave, Bluetooth broadcasting is started after the Bluetooth slave is started, the myoelectricity collection module is used as a Bluetooth host, the Bluetooth broadcasting is scanned after the Bluetooth slave is started, the Bluetooth name and the UUID are automatically identified, and Bluetooth connection is automatically carried out. After the bluetooth is connected, the LED lamp enters a slow flashing state.

After the Bluetooth is successfully matched and connected, a switch key of the myoelectricity acquisition module is pressed for a short time, and the myoelectricity acquisition module sends the local time and the starting acquisition state to the sound acquisition module through the Bluetooth. After the Bluetooth is successfully transmitted for 5 seconds, the myoelectricity acquisition module starts to enter a signal acquisition state; after receiving the Bluetooth data, the sound acquisition module sets local time and starts to enter a signal acquisition state after 5 seconds; after the LED lamps enter the acquisition state, the LED lamps of the two acquisition modules enter a normally-on state.

After the sound collection module enters a collection state, the bone conduction sensor is started to collect sound signals. Normally, only the noise signal is stored, when the audio signal is detected to be higher than the threshold value, the data of the audio signal is stored and the current time is recorded, and when the audio signal is detected to be lower than the threshold value, the data of the audio signal is stored and the current time is recorded. The duration of the segment of audio signal is calculated, and if the duration exceeds a threshold, the data of the segment of audio signal is determined to be valid and a timestamp data header is added thereto. If the current Bluetooth is idle, the data is transmitted to the myoelectricity acquisition module through the Bluetooth, and if the Bluetooth is transmitting, the data is stored in Flash of the chip and is transmitted again after the Bluetooth is idle.

And after the electromyography acquisition module enters an acquisition state, starting the electromyography acquisition unit to acquire electromyography signals. Under normal conditions, only the bottom noise signal and the electrocardiosignal are processed by calling an algorithm to remove the electrocardiosignal. And when the electromyographic signal is detected to be higher than the threshold value, the data of the section is stored and the current time is recorded, and when the electromyographic signal is detected to be lower than the threshold value, the data is stopped from being stored and the current time is recorded. And calculating the duration of the segment of electromyographic signals, if the duration exceeds a threshold value, judging that the data of the segment of electromyographic signals are valid, adding a time stamp data head to the data, and storing the data into the SD card. And when the myoelectricity acquisition module receives the data of the sound acquisition module, the data is also stored in the SD card.

After data acquisition is finished, a switch button on the myoelectricity acquisition module is pressed for a short time, the myoelectricity acquisition module stops data acquisition and sends a acquisition stopping command to the sound acquisition module through Bluetooth, the sound acquisition module stops data acquisition, and the LED lamp is changed into slow flashing. And then, the switch keys of the sound acquisition module and the myoelectricity acquisition module are pressed for a long time to shut down the system.

After the cough recording device is shut down, a USB line is inserted to connect a computer, and data in the SD card can be read out. And (3) importing data in the SD card by using specific upper computer software, and drawing an audio signal diagram and a myoelectric signal diagram corresponding to time by the upper computer software through a time stamp of a data header of a file.

The upper computer analyzes the cough signal and generates a corresponding report for diagnosis and treatment of doctors.

It should be noted that the above-described embodiments are merely illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the utility model, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The cough recording device is characterized by comprising a sound acquisition module and a myoelectricity acquisition module, wherein the sound acquisition module comprises a sound acquisition unit and a first microprocessor, and the myoelectricity acquisition module comprises a myoelectricity acquisition unit and a second microprocessor;

the voice acquisition module is arranged at the throat of a human body, the voice acquisition unit is connected with the first microprocessor, the voice acquisition unit is used for acquiring a first audio signal and transmitting the first audio signal to the first microprocessor, and the voice acquisition unit is a bone conduction sensor;

the myoelectricity acquisition module is arranged at the diaphragm part of the human body, the myoelectricity acquisition unit is connected with the second microprocessor, and the myoelectricity acquisition unit is used for acquiring a first myoelectricity signal and transmitting the first myoelectricity signal to the second microprocessor.

2. The cough recording device of claim 1, further comprising a data storage module;

the data storage module is connected with the second microprocessor, and the second microprocessor is further used for receiving the first audio signal sent by the first microprocessor and storing the first audio signal and the first electromyographic signal in the data storage module.

3. The cough recording device according to claim 1, wherein the myoelectricity collection unit includes a first electrode sheet, a second electrode sheet, and a lead wire;

the first electrode plate is used for being attached to a first position of the diaphragm portion, the second electrode plate is used for being attached to a second position of the diaphragm portion, and the first electromyographic signals are transmitted to the second microprocessor through the first electrode plate and the second electrode plate through the lead wires.

4. The cough recording device of claim 1, wherein the first microprocessor includes a first bluetooth chip, and the second microprocessor includes a second bluetooth chip;

the first microprocessor and the second microprocessor establish wireless communication connection through the first Bluetooth chip and the second Bluetooth chip.

5. The cough recording device of any one of claims 1-4, wherein the sound collection module further comprises a first power supply unit;

the first power supply unit is connected with the first microprocessor and the sound acquisition unit respectively and used for supplying power to the first microprocessor and the sound acquisition unit.

6. The cough recording device according to any one of claims 1 to 4, wherein the myoelectric acquisition module further comprises a second power supply unit;

the second power supply unit is connected with the second microprocessor and used for supplying power to the second microprocessor.

7. The cough recording device of any one of claims 1-4, wherein the sound collection module further comprises a first switch unit;

the first switch unit is connected with the first microprocessor and used for controlling whether the sound collection module works or not.

8. The cough recording device according to any one of claims 1 to 4, wherein the myoelectric acquisition module further comprises a second switch unit;

the second switch unit is connected with the second microprocessor and used for controlling whether the myoelectricity acquisition module works or not.

9. The cough recording device according to any one of claims 1 to 4, wherein the sound collection module further comprises a first indication unit, and the myoelectricity collection module further comprises a second indication unit;

the first indicating unit is connected with the first microprocessor and used for indicating the working state of the sound collecting module;

the second indicating unit is connected with the second microprocessor and used for indicating the working state of the myoelectricity acquisition module.

10. A cough diagnostic system, comprising an upper computer and a cough recording device of any one of claims 1-9;

the upper computer is connected with the cough recording device and used for obtaining the first audio signal and the first myoelectric signal and processing the first audio signal and the first myoelectric signal so as to identify the cough signal.

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