TWM446374U - Coughs recording device - Google Patents

Description

Cough recording device

The present invention relates to a cough recording device, and more particularly to a cough recording device which can accurately record the number of coughs, accurately record the time and interval of each cough, accurately record the amplitude of the vocal cord vibration, and has a simple overall structure.

In recent years, due to economic progress, advanced medicine, and changes in social patterns, the age of the population has been forced to become an advanced country in Europe and the United States. The trend brought about by the declining birth of the population has become more serious, and the elderly have taken care of themselves and medical services. Problems such as long-term care have evolved from personal and family issues to social problems. The aging society has become an unavoidable trend in the world.

In order to instantly grasp the physiological condition of patients with long-term care, and remind the caregivers to keep abreast of the health of the patients, most of the hospitalized patients use the nursing staff to regularly patrol the room or monitor the state of the patient through the video system. This is of course helpful in understanding the condition of the patient, but this will not only increase the burden of medical staff, but also disturb the privacy of the patient.

Taking cough as an example, it can be regarded as a common respiratory disease in the elderly. In severe cases, it may even cause serious illness that cannot be breathed. At present, there is a device for automatic detection of cough in the market, but the structure is complicated and the operation is not easy. In principle, in principle, Unable to spread, and benefit related patients.

In view of this, a technique for solving the above disadvantages has been developed.

The purpose of the present invention is to provide a cough recording device which has the advantages of accurately recording the number of coughs, accurately recording the time and interval of each cough, accurately recording the amplitude of the vocal cord vibration, and simple overall structure. In particular, the problems to be solved by this creative work include: there are currently no problems in the market for cough detection devices that are simple in structure and can be accurately interpreted.

The technical means for solving the above problems is to provide a cough recording device, comprising: a sound picker for continuously collecting a sound source to obtain at least one sound wave signal and transmitting it; and a vibration sensor for continuous Collecting a vibration change of a coughing vibration portion to obtain at least one vibration signal and transmitting it; a processing device for receiving the at least one sound wave signal and the at least one vibration signal, and converting the sound wave signal into a volume signal; When the amplitude of the vibration signal is greater than a reference standard value, recording a start time point and an end time point of the amplitude vibration, and recording the sound wave signal and the volume signal between the start time point and the end time point, The aforementioned record was interpreted as a coughing event, and the rest were non-cough events, thus constituting a device that can trace the subject and cough.

The above objects and advantages of the present invention will be readily understood from the following detailed description of the embodiments and the accompanying drawings.

The following examples are used in conjunction with the drawings to illustrate the creation in detail:

Referring to the first figure, the present invention is a cough recording device comprising: a sound extractor 10 for continuously acquiring a sound source 92 to obtain at least one sound wave signal A (see FIG. 3A) and transmitting A vibration sensor 20 is configured to continuously acquire a vibration change of a cough vibration portion 911 to obtain at least one vibration signal B (refer to FIG. 3C) and transmit it; a processing device 30 is configured to receive The at least one acoustic signal A and the at least one vibration signal B, and converting the acoustic signal A into a volume signal A1 (refer to FIG. 3B); when the amplitude of the vibration signal B is greater than a reference standard value L (see the fourth In the case of C), one start time point T1 and one end time point T2 of the amplitude are recorded, and the sound wave signal A and the volume signal A1 between the start time point T1 and the end time point T2 are recorded, the foregoing record It was judged as a coughing event, and the rest were non-coughing events. This constitutes a device that can track the person to be tested 91 and interpret cough.

In practice, the sound picker 10 can be an ear-mounted microphone that is attached to a person to be tested 91. In principle, the closer to the mouth, the better the sound is collected.

The coughing vibration portion 911 is located on the test subject 91. In principle, the position of the respiratory tract of the throat of the test subject 91 (see the first figure) and the chest (refer to the second figure) is preferred. Attached to the throat of the test subject 91 for explanation, in principle, the closer to the vocal cord effect, the better.

The processing device 30 is provided with a display device 31 for displaying the sound wave signal A, the volume signal A1, the vibration signal B and the reference standard through a graph. The value L.

The sound source 92 includes external noise, various sounds emitted by the test subject 91 (including coughing, clearing the throat...).

The vibration signal B includes various sounds (including cough, clear throat, etc.) emitted by the test subject 91 in the throat.

The part to be explained here is that the sound extractor 10 is located near the mouth of the test subject 91, but the sound source 92 captured still includes the sound emitted by the test subject 91 (including Coughing, clearing throat... and external noise (such as background music, radio, air noise...), and a noise zone (see Figure 5, for the noise zone P11 that does not include the vibration signal B, P12 is the interpretation standard). Therefore, the sonic signal A, the volume signal A1 and the vibration signal B are combined to form a human body transmitting area (the human body transmitting areas P21, P22 and P23 including the vibration signal B are used as the interpretation standard).

Regarding the actual operation process of this case, for example, the test subject 91 for a certain hospital observation is recorded from 9:00 am to 6:00 pm, and the continuous continuous collection of sounds includes external noise (such as background music, radio, air noise). ....), talk, cough, clear throat, breathing sounds of sleep, etc.

Because everyone talks, coughs, clears throats, breaths of sleep, or other vocalizations (such as yawning, sputum...), the amplitude of the vocal cord vibrations is different (in principle, the vibration generated by coughing is relatively large) Therefore, before the formal inspection, it is necessary to record the vibration amplitude of the vocal cord belonging to the test subject 91. For example, yawning separately (refer to the third A, third B and third C pictures, in principle, yawning Cause the vocal cords to have a small amplitude of vibration) and try hard to cough a few times (see the fourth, fourth, and fourth C diagrams. In principle, the vocal cords caused by the forceful cough have a large amplitude of vibration), except for observing the vibration signal. The amplitude change of B and the change of the volume signal A1, and thus the reference standard value L is set.

The detection process is automatically recorded by the processing device 30, and the vibration signal B generated by the throat vibration is caused by the general conversation, the small cough, the small force clear throat, the sleep breathing sound (small sound), and the amplitude thereof is lower than the reference. The standard value L is not specially marked. If the vibration signal B generated by the throat vibration caused by loud screaming, big cough, strong throat clearing, and loud snoring (sound louder) is greater than the reference standard value L, special marking is performed. In principle, the following data are specifically marked one by one: [a] when the vibration signal B is generated, the corresponding acoustic signal A and the volume signal A1 are marked; [b] the special marking vibration signal B is from greater than to less than the reference standard value L. The time point T1 (for example, 10:18:21) and the end time point T2 (for example, 10:18:23); and it is defined as the occurrence of a coughing event by the subject 91.

Therefore, each coughing event has a sonic signal (for example, an electronic file) A, a volume signal (for example, another electronic file) A1, and a vibration between a starting time point T1 and an ending time point T2. Signal (for example, another electronic file) B.

Finally, get all the sound related records in the test time for the medical staff The staff made a follow-up interpretation. The method of interpretation is as follows: Referring to the fifth figure, it is assumed that a total of five acoustic signals A are generated during the detection time (in the case of five examples, actually hundreds or more), Listen to all the sound waves of the target event by manual filtering to determine whether it is coughing. If not, delete or mark it. The filtered result is the cough record of the user 91. The doctor can more accurately understand the time of each cough, how long it lasts, and the sound (and type) of the cough, which can be further studied or treated. This approach is accurate but time consuming.

When the number of the acoustic signal A is one hundred or more, whether the acoustic signal A corresponds to the vibration signal B or not is quickly determined whether it is a human body signaling area (P21, P22, and P23), and further Whether the vibration signal B is greater than the reference standard value L, and determining that the test subject 91 has coughed several times, has the effect of improving medical effects.

Take the five acoustic signals A in the fifth picture as an example:

The first acoustic signal A is classified into the human body signal area P21, because the vibration sensor 20 starts to generate amplitude at the first point X1 (the amplitude represents the sound of the test subject 91 with vibration), and the second point X2 The amplitude peaked at the third point X3 and ended at the fourth point X4, but since the amplitude did not reach the reference standard value L, it was not interpreted as a cough.

The second acoustic signal A is summarized as the noise zone P11, and the vibration sensor 20 is judged to be murmur (including speech and external noise) because it does not generate amplitude at all.

The third acoustic signal A is summarized as the human body signal zone P22 due to the vibration The finder 20 generates an amplitude between the fifth point X5 and the sixth point X6 (the amplitude represents the sound of the test subject 91 with vibration), and is higher than the reference between the start time point T1 and the end time point T2. The standard value L is interpreted as a cough. And a first coughing waveform W1 is taken between the starting time point T1 and the ending time point T2.

The fourth acoustic signal A is summarized as the noise zone P12, and the vibration sensor 20 is judged to be murmur (including speech and external noise) because the amplitude is not generated at all.

The fifth acoustic wave signal A is summarized as a human body signaling area P23, and the vibration sensor 20 starts to generate amplitude at the seventh point X7 to the eighth point X8, and is high between the start time point T1 and the end time point T2. At the reference standard value L, it was judged as cough. And a second coughing waveform W2 is taken between the starting time point T1 and the ending time point T2.

Although a smaller cough may be ignored, it has less effect. And this case only records the part, the subsequent filtering part is not within the scope of this case.

Of course, the subsequent filtering part is possible to use a computer for voiceprint analysis to determine whether it is a cough. However, because the coughing sounds of different people are very different, each person's cough is also different. The analysis of the grain is quite difficult, and artificial filtering is currently available.

The advantages and functions of this creation can be summarized as follows:

[1] can accurately record the number of coughs. Although the number of coughs can be used as one of the conditions for judging the condition, it is unlikely that someone will remember how many times they cough for a long time, and this creation can automatically and accurately record each person to be tested within the detection time. The number of coughs increases the accuracy of medical treatment.

[2] Accurately record the time and interval of each cough. Cough may be a short cough (for example, 1 second), a long cough (for example, 3 seconds), a short cough in a short period of time, or a continuous cough after a period of time. The time points are different. It can accurately record the start time and end time of the vibration of the vocal cord caused by cough, and can be used for medically accurate diagnosis.

[3] Accurately record the amplitude of the vocal cord vibration. When there is a cough, the human body reaction may forcefully cough up, and this will increase the vibration amplitude of the vocal cords. This creation can show the amplitude of the vocal cord vibration, which can be interpreted more accurately in medical treatment.

[4] The overall structure is simple. This creation is mainly to set up a sound picker (ie microphone) and a vibration sensor (a known vibration sensing structure is quite large, no need to develop the design). All of them are well-known structures. As for the processing device, the structure of the well-known circuit (only the conversion of different signals and then output to the display device) can be directly applied, and almost no further development is required. Therefore, the overall structure is simple.

The above is only a detailed description of the present invention by way of a preferred embodiment, and any modifications and variations of the embodiments are possible without departing from the spirit and scope of the present invention.

10‧‧‧Sound extractor

20‧‧‧Vibration Sensor

30‧‧‧Processing device

31‧‧‧ display device

91‧‧‧Testees

911‧‧‧Cough and vibration department

92‧‧‧ source

A‧‧‧Sonic signal

A1‧‧‧Volume signal

B‧‧‧Vibration signal

L‧‧‧ reference standard value

T1‧‧‧ starting point

End of T2‧‧‧

P11, P12‧‧‧ noise area

P21, P22, P23‧‧‧ human body communication area

X1‧‧‧ first point

X2‧‧‧ second point

X3‧‧‧ third point

X4‧‧‧ fourth point

X5‧‧‧ fifth point

X6‧‧‧ sixth point

X7‧‧‧ seventh point

X8‧‧‧ eighth point

W1‧‧‧ First cough waveform

W2‧‧‧ second cough waveform

The first picture is a schematic diagram of the creation of the throat

The second picture is a schematic diagram of the application to the chest.

The third A, third B and third C pictures are the curves of the sound wave signal, the volume signal, the vibration signal and the reference standard value of the sensation of the test subject.

The fourth A, fourth B and fourth C pictures are the curves of the sound wave signal, the volume signal, the vibration signal and the reference standard value of the test for the test subject.

The fifth picture is a graph of the sound wave signal, volume signal, vibration signal and reference standard value obtained by the cough test for a predetermined time period.

10‧‧‧Sound extractor

20‧‧‧Vibration Sensor

30‧‧‧Processing device

31‧‧‧ display device

91‧‧‧Testees

911‧‧‧Cough and vibration department

92‧‧‧ source

A‧‧‧Sonic signal

A1‧‧‧Volume signal

B‧‧‧Vibration signal

L‧‧‧ reference standard value

Claims (6)

A cough recording device includes: a sound picker for continuously collecting a sound source to obtain at least one sound wave signal and transmitting it; and a vibration sensor for continuously collecting vibration changes of a cough vibration portion Obtaining at least one vibration signal and transmitting it; a processing device is configured to receive the at least one sound wave signal and the at least one vibration signal, and convert the sound wave signal into a volume signal; when the amplitude of the vibration signal is greater than one When referring to the standard value, one start time point and one end time point of the amplitude are recorded, and the sound wave signal and the volume signal between the start time point and the end time point are recorded, and the record is read as a cough event. The rest are non-cough events, which constitute a device that can trace the person to be tested and interpret cough. The cough recording device according to claim 1, wherein the sound extractor is an ear-hook microphone. The cough recording device according to the first aspect of the invention, wherein the sound extractor is an ear-hook microphone for being placed on a person to be tested. The cough recording device according to claim 1, wherein the coughing vibration portion is located on a subject to be tested, and is a throat and a chest of the subject to be tested, which is a position where the respiratory trachea is distributed. The cough recording device according to claim 1, wherein the coughing vibration portion is located on a subject to be tested, and is the throat of the subject to be tested. The part, the chest, which is the position where the respiratory tract is distributed; the vibration sensor is attached to the structure of the throat of the subject. The cough recording device of claim 1, wherein the processing device is provided with a display device for displaying the sound wave signal, the volume signal, the vibration signal and the reference standard value.