CN114209335A - Automatically-adjusted intelligent heart sound and electrocardio measuring instrument and control method thereof - Google Patents
Automatically-adjusted intelligent heart sound and electrocardio measuring instrument and control method thereof Download PDFInfo
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- CN114209335A CN114209335A CN202210024087.0A CN202210024087A CN114209335A CN 114209335 A CN114209335 A CN 114209335A CN 202210024087 A CN202210024087 A CN 202210024087A CN 114209335 A CN114209335 A CN 114209335A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000005236 sound signal Effects 0.000 claims abstract description 68
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000007613 environmental effect Effects 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
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- 238000003745 diagnosis Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 206010003119 arrhythmia Diseases 0.000 description 1
- 230000006793 arrhythmia Effects 0.000 description 1
- 238000002555 auscultation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 210000003709 heart valve Anatomy 0.000 description 1
- 208000018578 heart valve disease Diseases 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
- A61B5/251—Means for maintaining electrode contact with the body
- A61B5/257—Means for maintaining electrode contact with the body using adhesive means, e.g. adhesive pads or tapes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/02—Stethoscopes
- A61B7/04—Electric stethoscopes
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Abstract
The invention relates to an automatically-adjusted intelligent heart sound and electrocardio measuring instrument and a control method thereof, and the automatically-adjusted intelligent heart sound and electrocardio measuring instrument comprises a heart sound unit and an electrocardio unit, wherein the electrocardio unit comprises an electrocardio electrode plate (9), the electrocardio electrode plate (9) and a main body (6) form a sound collecting cavity (7), and a main microphone (5) in the heart sound unit is positioned in the sound collecting cavity (7), and the automatically-adjusted intelligent heart sound and electrocardio measuring instrument is characterized in that: still include a drive arrangement and transmission structure, drive arrangement makes main microphone (5) can remove in adopting sound chamber (7) different height position through transmission structure, avoids outside many sound source interact to cause main microphone (5) can not gather the heart sound signal or the heart sound signal is too weak. According to the invention, the main microphone can be adjusted in height position, so that the problem that qualified heart sound signals cannot be acquired due to interference among different sound sources under a complex sound source environment is avoided, and the acquisition quality of the heart sound signals is ensured.
Description
Technical Field
The invention relates to an automatic-adjusting intelligent heart sound and electrocardio measuring instrument.
Background
The principle of electrocardio is that when myocardial cells depolarize, small electrical changes are caused on the surface of skin, and the continuous change of the voltage difference reflects the contraction and relaxation process of heart. Heart sounds are the sounds (vibrations) produced by the blood flowing in the heart, particularly through the opening and closing of the heart valves, and are picked up at specific parts of the body by a microphone-like sensor, which is known as heart auscultation.
The electrocardio is a voltage signal, the single-lead electrocardio can be used for heart diagnosis of rhythms (such as arrhythmia), and the multi-lead electrocardio can be used for more complex diagnosis; the heart sound is a sound signal or a vibration signal, and can be used for discovering some structural heart diseases (such as heart valve diseases).
Heart sound signals (PCG) and Electrocardiosignals (ECG) are important physiological signals of a human body and carry a large number of physiological characteristics, but the extraction of the weak signals is easily interfered by the outside.
The general popularization of domestic electrocardio heart sound measuring apparatu for electrocardio heart sound measuring apparatu service environment becomes also more complicated, and various phenomena such as a plurality of noise sound sources are ordinary to exist, probably will take place to interfere between the sound wave, diffract, because can take place to interfere and probably cause can't arrive collection sound signal in some positions, perhaps can make the heart sound signal distortion that the heart sound sensor gathered, consequently need carry out intelligent adjustment in order to be applicable to complicated domestic environment to the position of sound sensor and use.
Disclosure of Invention
The invention designs an automatically-adjusted intelligent heart sound and electrocardio measuring instrument and a control method thereof, and solves the technical problems that the use environment of the electrocardio heart sound measuring instrument in the prior art becomes more complex, a plurality of noise sound sources commonly exist, various phenomena such as interference, diffraction and the like can occur among sound waves, and due to the interference, sound signals cannot be acquired at certain positions or the heart sound signals acquired by a heart sound sensor are distorted.
In order to solve the technical problems, the invention adopts the following scheme:
the utility model provides an automatic intelligent heart sound and electrocardio measuring apparatu of adjusting, includes heart sound unit and electrocardio unit, and electrocardio unit includes electrocardio electrode piece (9), and electrocardio electrode piece (9) and main part (6) form and adopt sound chamber (7), and main microphone (5) in the heart sound unit are arranged in adopting sound chamber (7), its characterized in that: still include a drive arrangement and transmission structure, drive arrangement makes main microphone (5) can remove in adopting sound chamber (7) different height position through transmission structure, avoids outside many sound source interact to cause main microphone (5) can not gather the heart sound signal or the heart sound signal is too weak.
Preferably, drive arrangement is micro motor (1), drive mechanism includes rotary threaded rod (2), axial displacement bearing housing (3) and connecting piece (4), and an tip of rotary threaded rod (2) is connected with micro motor (1), and axial displacement bearing housing (3) is cup jointed in rotary threaded rod (2), rotary threaded rod (2) with axial displacement bearing housing (3) form the ball screw structure, and the inner circle and rotary threaded rod (2) threaded connection of axial displacement bearing housing (3), and the outer lane of axial displacement bearing housing (3) passes through connecting piece (4) and is connected with main microphone (5), and when the inner circle of axial displacement bearing housing (3) rotated, the outer lane of axial displacement bearing housing (3) kept static relatively to main microphone (5) along rotary threaded rod (2) axial displacement.
Preferably, drive arrangement is micro motor (1), drive mechanism includes rotary threaded rod (2), nut and connecting piece (4), and rotary threaded rod (2) tip is connected with micro motor (1), and rotary threaded rod (2) cup joints the nut, rotary threaded rod (2) with the nut forms the ball screw structure, and the nut passes through connecting piece (4) and is connected with main microphone (5), and when the inner circle of axial displacement bearing housing (3) rotated, main microphone (5) were rotatory and along rotary threaded rod (2) axial displacement.
Preferably, main part (6) top is equipped with the through-hole that supplies rotatory threaded rod (2) to pass, is equipped with puigging (8) between micro motor (1) and main part (6), and the noise that avoids micro motor during operation to produce disturbs the collection of main microphone.
Preferably, a secondary microphone is also included, which is located outside the main body (6) to collect ambient noise.
Preferably, the system further comprises an audio amplifying unit, a filtering unit and an analog-to-digital conversion unit, wherein the audio amplifying unit amplifies the heart sound signal collected by the main microphone and the environmental noise signal collected by the auxiliary microphone, the filtering unit removes the amplified environmental noise signal from the amplified heart sound signal to obtain a more real heart sound signal, and the analog-to-digital conversion unit converts the heart sound analog signal into a digital signal and outputs the digital signal.
A control method of an automatically-adjusted intelligent heart sound and electrocardio measuring instrument comprises the following steps: step 1, sticking an electrocardio electrode plate (9) on the skin; step 2, starting the heart sound unit and the electrocardio unit to respectively collect a heart sound signal and an electrocardio signal; and 3, judging whether the strength of the heart sound signals collected by the heart sound unit meets a set standard, and normally collecting the heart sound signals and the electrocardiosignals when the strength of the heart sound signals meets the set standard.
Preferably, step 4, judging whether the strength of the heart sound signal collected by the heart sound unit meets a set standard, when the heart sound signal is too weak, starting the micro motor to enable the main microphone to move in the vertical direction of the sound collection cavity (7), stopping at different heights, respectively collecting whether the strength of the heart sound signal at the position meets the set standard, and finally moving the main microphone to the optimal position to collect the heart sound signal through comparison.
Preferably, in step 5, the audio amplifying unit amplifies the heart sound signal collected by the main microphone and the environmental noise signal collected by the sub-microphone, the filtering unit removes the amplified environmental noise signal from the amplified heart sound signal (including the noise signal) to obtain a more realistic heart sound signal, and the analog-to-digital converting unit converts the heart sound analog signal into a digital signal and outputs the digital signal.
Preferably, when the sound signal collected by the sub-speaker is changed greatly, the noise sound source is changed, and whether the strength of the heart sound signal collected by the heart sound unit meets the set standard is judged again so as to determine whether to repeat the step 4.
The automatically-adjusted intelligent heart sound and electrocardio measuring instrument and the control method thereof have the following beneficial effects:
(1) according to the invention, the main microphone can be adjusted in height position, so that the problem that qualified heart sound signals cannot be acquired due to interference among different sound sources under a complex sound source environment is avoided, and the acquisition quality of the heart sound signals is ensured.
(2) The invention ensures that the main microphone can stop at the nearest height position to collect the heart sound signals by a self-detection and comparison mode, and the optimal position is adjusted in a dynamic state.
Drawings
FIG. 1: the invention discloses a schematic diagram of an automatically-adjusted intelligent heart sound and electrocardio measuring instrument for adjusting a main microphone at the lowest point;
FIG. 2: the main microphone is adjusted to be at the highest point schematic diagram by the automatically adjusted intelligent heart sound and electrocardio measuring instrument;
FIG. 3: the sound processing in the present invention is schematically illustrated in block diagram form.
Description of reference numerals:
1-a micro motor; 2-rotating the threaded rod; 3-axially moving the bearing sleeve; 4, connecting pieces; 5-main microphone; 6-main body; 7-sound collecting cavity; 8, a sound insulation layer; 9-electrocardioelectrode slice.
Detailed Description
The invention is further illustrated below with reference to fig. 1 to 3:
as shown in fig. 1 and 2, an automatically-adjusted intelligent heart sound and electrocardio measuring instrument comprises a heart sound unit and an electrocardio unit, wherein the electrocardio unit comprises an electrocardio electrode plate 9, the electrocardio electrode plate 9 and a main body 6 form a sound collecting cavity 7, and a main microphone 5 in the heart sound unit is positioned in the sound collecting cavity 7, and is characterized in that: still include a drive arrangement and transmission structure, drive arrangement makes main microphone 5 can remove in the different height positions of adopting in sound chamber 7 through transmission structure, avoids outside many sound source to influence each other and causes main microphone 5 can not gather the heart sound signal or the heart sound signal is too weak.
The first structure may be: the driving device is a micro motor 1, the transmission mechanism comprises a rotary threaded rod 2, an axial movement bearing sleeve 3 and a connecting piece 4, one end of the rotary threaded rod 2 is connected with the micro motor 1, the rotary threaded rod 2 is sleeved with the axial movement bearing sleeve 3, the rotary threaded rod 2 and the axial movement bearing sleeve 3 form a ball screw structure, an inner ring of the axial movement bearing sleeve 3 is in threaded connection with the rotary threaded rod 2, an outer ring of the axial movement bearing sleeve 3 is connected with a main microphone 5 through the connecting piece 4, when the inner ring of the axial movement bearing sleeve 3 rotates, the outer ring of the axial movement bearing sleeve 3 keeps relatively static, and the main microphone 5 moves axially along the rotary threaded rod 2.
The second structure may be: drive arrangement is micro motor 1, and drive mechanism includes rotary threaded rod 2, nut and connecting piece 4, and 2 tip of rotary threaded rod are connected with micro motor 1, and rotary threaded rod 2 cup joints the nut, and rotary threaded rod 2 forms the ball screw structure with the nut, and the nut passes through connecting piece 4 and is connected with main microphone 5, and when the inner circle of axial displacement bearing housing 3 rotated, main microphone 5 was rotatory and along 2 axial displacement of rotary threaded rod.
The second structure is simpler than the first structure, but the first structure can make the main microphone 5 not to rotate and move, thereby ensuring that it is always on the axis of the threaded rod, and thus the position of the sound collection can be known.
As shown in fig. 1, the main microphone 5 is positioned at the lowermost end, almost contacting the electrocardiographic pad 9. As shown in fig. 2, the main microphone 5 is located at the uppermost end. A plurality of stopping points can be arranged between the uppermost end and the lowermost end as required to acquire the optimal heart sound signal.
The top of main part 6 is equipped with the through-hole that supplies rotatory threaded rod 2 to pass, is equipped with puigging 8 between micro motor 1 and the main part 6, and the noise of avoiding micro motor during operation to produce disturbs the collection of main microphone.
And the microphone also comprises a secondary microphone, and the secondary microphone is positioned outside the main body 6 and used for collecting the ambient noise.
As shown in fig. 3, the digital-to-analog converter further includes an audio amplifying unit, a filtering unit and an analog-to-digital converting unit, wherein the audio amplifying unit amplifies the heart sound signal collected by the main microphone and the environmental noise signal collected by the sub-microphone, the filtering unit removes the amplified environmental noise signal from the amplified heart sound signal to obtain a more real heart sound signal, and the analog-to-digital converting unit converts the heart sound analog signal into a digital signal and outputs the digital signal.
The invention relates to a control method of an automatically-adjusted intelligent heart sound and electrocardio measuring instrument, which comprises the following steps:
And 4, judging whether the strength of the heart sound signals acquired by the heart sound unit meets a set standard, starting the micro motor when the heart sound signals are too weak, enabling the main microphone to move in the vertical direction of the sound acquisition cavity 7, stopping at different heights, respectively acquiring whether the strength of the heart sound signals at the position meets the set standard, and finally moving the main microphone to the optimal position to acquire the heart sound signals through comparison.
And 5, amplifying the heart sound signal acquired by the main microphone and the environmental noise signal acquired by the auxiliary microphone by the audio amplification unit, removing the amplified environmental noise signal from the amplified heart sound signal containing the noise signal by the filtering unit to obtain a more real heart sound signal, and converting the heart sound analog signal into a digital signal by the analog-to-digital conversion unit and outputting the digital signal.
And when the sound signal collected by the auxiliary loudspeaker is changed greatly, the noise sound source is changed, and whether the strength of the heart sound signal collected by the heart sound unit meets the set standard or not is judged again so as to determine whether the step 4 is repeated or not.
The invention is described above with reference to the accompanying drawings, it is obvious that the implementation of the invention is not limited in the above manner, and it is within the scope of the invention to adopt various modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (10)
1. The utility model provides an automatic intelligent heart sound and electrocardio measuring apparatu of adjusting, includes heart sound unit and electrocardio unit, and electrocardio unit includes electrocardio electrode piece (9), and electrocardio electrode piece (9) and main part (6) form and adopt sound chamber (7), and main microphone (5) in the heart sound unit are arranged in adopting sound chamber (7), its characterized in that: still include a drive arrangement and transmission structure, drive arrangement makes main microphone (5) can remove in adopting sound chamber (7) different height position through transmission structure, avoids outside many sound source interact to cause main microphone (5) can not gather the heart sound signal or the heart sound signal is too weak.
2. The self-adjusting intelligent heart sound and electrocardiogram measuring instrument according to claim 1, wherein: the driving device is a micro motor (1), the transmission mechanism comprises a rotary threaded rod (2), an axial movement bearing sleeve (3) and a connecting piece (4), one end of the rotary threaded rod (2) is connected with the micro motor (1), the rotary threaded rod (2) is sleeved with the axial movement bearing sleeve (3), the rotary threaded rod (2) is connected with the axial movement bearing sleeve (3) to form a ball screw structure, the inner ring of the axial movement bearing sleeve (3) is in threaded connection with the rotary threaded rod (2), the outer ring of the axial movement bearing sleeve (3) is connected with a main microphone (5) through the connecting piece (4), and when the inner ring of the axial movement bearing sleeve (3) rotates, the outer ring of the axial movement bearing sleeve (3) keeps relatively static and the main microphone (5) moves along the axial movement of the rotary threaded rod (2).
3. The self-adjusting intelligent heart sound and electrocardiogram measuring instrument according to claim 1, wherein: the driving device is a micro motor (1), the transmission mechanism comprises a rotary threaded rod (2), a nut and a connecting piece (4), one end of the rotary threaded rod (2) is connected with the micro motor (1), the rotary threaded rod (2) is sleeved with the nut, the rotary threaded rod (2) and the nut form a ball screw structure, the nut is connected with a main microphone (5) through the connecting piece (4), and when the inner ring of the axial movement bearing sleeve (3) rotates, the main microphone (5) rotates and moves axially along the rotary threaded rod (2).
4. The self-adjusting intelligent heart sound and electrocardiogram measuring instrument according to claim 2 or 3, wherein: the top of the main body (6) is provided with a through hole for the rotating threaded rod (2) to pass through, a sound insulation layer (8) is arranged between the micro motor (1) and the main body (6), and noise generated during the operation of the micro motor is prevented from interfering with the collection of the main microphone.
5. The self-adjusting intelligent heart sound and electrocardiogram measuring instrument according to claim 2 or 3, wherein: the microphone also comprises an auxiliary microphone, and the auxiliary microphone is positioned outside the main body (6) and is used for collecting the environmental noise.
6. The self-adjusting intelligent heart sound and electrocardio-measuring instrument of claim 5, wherein: the system comprises a main microphone, an auxiliary microphone, an audio amplifying unit, a filtering unit and an analog-to-digital conversion unit, wherein the audio amplifying unit amplifies heart sound signals collected by the main microphone and environment noise signals collected by the auxiliary microphone, the filtering unit removes the amplified environment noise signals from the amplified heart sound signals to obtain more real heart sound signals, and the analog-to-digital conversion unit converts the heart sound analog signals into digital signals and outputs the digital signals.
7. A control method of an automatically-adjusted intelligent heart sound and electrocardio measuring instrument comprises the following steps:
step 1, sticking an electrocardio electrode plate (9) on the skin;
step 2, starting the heart sound unit and the electrocardio unit to respectively collect a heart sound signal and an electrocardio signal;
and 3, judging whether the strength of the heart sound signals collected by the heart sound unit meets a set standard, and normally collecting the heart sound signals and the electrocardiosignals when the strength of the heart sound signals meets the set standard.
8. The method of claim 7, wherein the method comprises the steps of:
and 4, judging whether the strength of the heart sound signals collected by the heart sound unit meets a set standard, starting the micro motor when the heart sound signals are too weak, enabling the main microphone to move in the vertical direction of the sound collection cavity (7) and stop at different heights, respectively collecting whether the strength of the heart sound signals at the position meets the set standard, and finally moving the main microphone to the optimal position to collect the heart sound signals through comparison.
9. The method of claim 8, wherein the method further comprises the steps of: and step 5, the audio amplification unit amplifies the heart sound signals collected by the main microphone and the environment noise signals collected by the auxiliary microphone, the filtering unit removes the amplified environment noise signals from the amplified heart sound signals (including the noise signals) to obtain more real heart sound signals, and the analog-to-digital conversion unit converts the heart sound analog signals into digital signals and outputs the digital signals.
10. The method of claim 9, wherein the method further comprises the steps of: and when the sound signal collected by the auxiliary loudspeaker is changed greatly, the noise sound source is changed, and whether the strength of the heart sound signal collected by the heart sound unit meets the set standard or not is judged again so as to determine whether the step 4 is repeated or not.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210024087.0A CN114209335A (en) | 2022-01-11 | 2022-01-11 | Automatically-adjusted intelligent heart sound and electrocardio measuring instrument and control method thereof |
| PCT/CN2022/126866 WO2023134253A1 (en) | 2022-01-11 | 2022-10-23 | Heart sound signal prediction method, and smart heart sound and electrocardiogram measurement instrument |
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| CN202210024087.0A CN114209335A (en) | 2022-01-11 | 2022-01-11 | Automatically-adjusted intelligent heart sound and electrocardio measuring instrument and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023134253A1 (en) * | 2022-01-11 | 2023-07-20 | 吴先洪 | Heart sound signal prediction method, and smart heart sound and electrocardiogram measurement instrument |
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