Physiological sound acquisition device and wearable device

Abstract

The present application discloses a physiological sound acquisition device and a wearable device. The physiological sound acquisition device includes a bone conduction sensor and a first microphone. The bone conduction sensor is used to collect physiological sound signals, and the first microphone is used to collect a first environmental noise signal, and the first environmental noise signal is used to correct the physiological sound signals. In the present application, the bone conduction sensor in the physiological sound acquisition device is used to collect physiological sound signals, so that the acquisition of physiological sounds can be realized by the operation of the device user, without the need for a doctor to operate to obtain physiological sounds. In addition, after the physiological sound signals are corrected by the first environmental noise signal collected by the first microphone, the accuracy of the physiological sound signals is improved.

Description

Technical Field

[0001] This application relates to the technical field of information collection, and particularly to a physiological sound collection device and a wearable device. Background Art

[0002] Physiological sounds refer to the sounds generated by mechanical wave phenomena in human organs such as the heart and lungs.

[0003] Currently, the way to obtain physiological sounds is through auscultation during medical treatment, that is, auscultation needs to be performed by a doctor in the hospital, resulting in inconvenient acquisition of physiological sounds. Summary of the Invention

[0004] In view of this, this application provides a physiological sound collection device and a wearable device, aiming to improve the convenience of obtaining physiological sounds.

[0005] To achieve the above object, this application provides a physiological sound collection device, and the device includes:

[0006] A bone conduction sensor and a first microphone;

[0007] The bone conduction sensor is used to collect physiological sound signals, and the first microphone is used to collect a first environmental noise signal, and the first environmental noise signal is used to remove environmental noise characteristics in the physiological sound signals.

[0008] Exemplarily, the device further includes a second microphone, and the second microphone is used to collect a second environmental noise signal; when there are the same environmental noise characteristics in the second environmental noise signal as those in the first environmental noise signal, the environmental noise characteristics in the physiological sound signals are removed.

[0009] Exemplarily, the device further includes a reminder module, and the reminder module is used to output a first reminder message when the intensity of the physiological sound signal is less than or equal to a preset physiological sound signal intensity threshold to remind the user to adjust the measurement posture; and when the noise signal intensity of the second environmental noise signal is greater than or equal to a preset noise signal intensity threshold, the reminder module is further used to output a second reminder message to remind the user to select a new environment to collect physiological sounds.

[0010] Exemplarily, the wearable device includes a wearable main body and earphones; the earphones include the physiological sound collection device as described above.

[0011] Exemplarily, the wearable main body includes a first communication module, and the earphones include a second communication module;

[0012] The first communication module is used to receive the physiological sound signal with environmental noise characteristics removed sent by the second communication module;

[0013] The first communication module includes a Bluetooth module or a UWB module;

[0014] The second communication module includes a Bluetooth module or a UWB module.

[0015] Exemplarily, the wearable body further includes a heart monitoring trigger data acquisition module; the heart monitoring trigger data acquisition module is used to acquire heart monitoring trigger data; the heart monitoring trigger data is used to determine whether the user is a key object of concern for heart health. If so, the wearable body enters the heart monitoring mode.

[0016] Exemplarily, the heart monitoring trigger data acquisition module is a body fat detection module, and the heart monitoring trigger data is the body fat percentage; if the body fat percentage is greater than or equal to a preset body fat percentage threshold, it is determined that the user is a key object of concern for heart health, and the wearable body enters the heart monitoring mode.

[0017] Exemplarily, the heart monitoring trigger data acquisition module is a motion detection module, and the heart monitoring trigger data is motion data; the motion data is used to determine whether the frequency of the user's participation in sports is less than or equal to a preset frequency threshold. If so, it is determined that the user is a key object of concern for heart health, and the wearable body enters the heart monitoring mode.

[0018] Exemplarily, the heart monitoring trigger data acquisition module includes a body fat detection module and a motion detection module, and the heart monitoring trigger data includes the body fat percentage and motion data; if the body fat percentage is greater than or equal to a preset body fat percentage threshold and the frequency of the user's participation in sports is less than or equal to a preset frequency threshold, it is determined that the user is a key object of concern for heart health, and the wearable body enters the heart monitoring mode.

[0019] Exemplarily, the wearable body further includes a wearing detection module and a physiological parameter signal acquisition module;

[0020] The wearing detection module is used to determine whether the wearable body is in a worn state;

[0021] The physiological parameter signal acquisition module is used to acquire the user's physiological parameter signals when the wearable body is in a worn state.

[0022] Exemplarily, the wearable body further includes a processor;

[0023] The processor is used to calculate the user's blood pressure based on the physiological sound signal with environmental noise characteristics removed and the physiological parameter signals, and perform corresponding device operations based on the blood pressure.

[0024] In the prior art, physiological sounds are obtained by auscultation during a medical visit, which requires a doctor to perform the operation in a hospital, making it inconvenient to obtain physiological sounds. In contrast, the present application provides a physiological sound acquisition device, which includes a bone conduction sensor and a first microphone; the bone conduction sensor is used to collect physiological sound signals, and the first microphone is used to collect a first ambient noise signal, and the first ambient noise signal is used to correct the physiological sound signals. In the present application, the physiological sound signals are collected by the bone conduction sensor in the physiological sound acquisition device, so that the acquisition of physiological sounds can be realized by the user of the device without the need for a doctor to operate to obtain physiological sounds. In addition, after the physiological sound signals are corrected by the first ambient noise signal collected by the first microphone, the accuracy of the physiological sound signals is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0026] Figure 1 Schematic diagram of the physiological sound signal (upper) and the first ambient noise signal (lower) collected by the physiological sound acquisition device of the present application;

[0027] Figure 2 Schematic diagram of the structure of the earphone related to the embodiment of the physiological sound acquisition device of the present application;

[0028] Figure 3 Schematic diagram of the structure of a watch related to the embodiment of the wearable device of the present application;

[0029] Figure 4 Schematic diagram of the structure of another watch related to the embodiment of the wearable device of the present application;

[0030] Figure 5 Optional device block diagram in the embodiment of the wearable device of the present application;

[0031] Figure 6 Schematic diagram of the data processing method flow in a preferred embodiment of the wearable device of the present application.

[0032] The realization of the objectives, functional features, and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application.

[0034] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] It should be noted that if there are descriptions such as "first", "second", etc. involved in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature.

[0036] The first embodiment of the present application provides a physiological sound acquisition device, including a bone conduction sensor and a first microphone; the bone conduction sensor is used to acquire physiological sound signals, the first microphone is used to acquire a first environmental noise signal, and the first environmental noise signal is used to correct the physiological sound signals.

[0037] Physiological sound signals include heart sound signals, lung sound signals, etc. Among them, heart sound refers to the sound generated by mechanical wave phenomena caused by myocardial contraction, heart valve closure, and blood hitting the ventricular wall, large artery wall, etc.; the main source of lung sound is the sound generated by the rupture of air bubbles formed after the gas acts on the secretions in the respiratory tract and airway, such as fluid, sputum, blood, etc. Heart sound signals are the signals obtained by collecting heart sounds, and lung sound signals are the signals obtained by collecting lung sounds.

[0038] Taking the acquisition of heart sound signals as an example for elaboration, the bone conduction sensor collects the vibration signals of the heart. For the collected vibration signals, a filtering unit and a signal amplification unit are also required to eliminate the noise signals and amplify the useful signals. For the first environmental noise signal, the same processing of eliminating the noise signals and amplifying the useful signals is also required. When the bone conduction sensor collects heart sound signals, the user needs to place the earphone close to the chest wall, so as to make the heart sound signals collected by the bone conduction sensor more accurate.

[0039] Refer to Figure 1 , Figure 1Schematic diagram of the heart sound signal (upper) and the first environmental noise signal (lower) collected by the physiological sound collection device of the present application. To avoid the collection errors caused by the physiological sound signal collection method (including the noise caused by the movement of the user's fingers, the noise caused by the friction between the earphone and the clothes, etc.), it is necessary to correct the heart sound signal with the first environmental noise signal collected by the first microphone. The specific process is as follows: Extract the key heart sound signal features (determined by the normal heart sound signal when there is no heart disease in medicine) as the marker points, and align the heart sound signal and the first environmental noise signal; Use the heart sound signal as the main signal and the first environmental noise signal as the correction signal to judge whether the abnormal signal (abnormal sound feature) in the main signal is caused by the user's heart abnormality or the collection error. Among them, the normal heart sound signal is used to mark the normal signal in the heart sound signal (marking the peak and / or trough), and the abnormal signal in the heart sound signal is the signal that appears obvious peak and / or trough except the normal signal. It should be noted that when there is an abnormal signal in the heart sound signal and this abnormal signal also exists in the first environmental noise signal, it is determined that this abnormal signal is a collection error; when there is an abnormal signal in the heart sound signal but this abnormal signal does not exist in the first environmental noise signal, it is determined that this abnormal signal is caused by the user's heart abnormality.

[0040] Exemplarily, the device further includes a second microphone, and the second microphone is used to collect the second environmental noise signal; when there are the same environmental noise features in the second environmental noise signal as those in the first environmental noise signal, the environmental noise features in the physiological sound signal are removed.

[0041] For the second environmental noise signal, it also needs to be processed by eliminating the noise signal and amplifying the useful signal. It should be noted that the position of the second microphone needs to be far away from the bone conduction sensor. For example, the two are arranged on the opposite sides in the earphone, so that when the bone conduction sensor is close to the chest wall, the second microphone is far away from the chest wall, so that the second microphone can receive clear environmental noise. Among them, the environmental noise is the sound of people talking loudly in the environment, the sound of closing the door, etc. It should be noted that the noise reduction process is the process of subtracting the second environmental noise signal from the heart sound signal.

[0042] It should be noted that before the heart sound signal is processed by the second environmental noise signal for noise reduction, it is also necessary to align the second environmental noise signal and the heart sound signal.

[0043] The purpose of setting the second microphone is to make a secondary judgment on the abnormal signal in the heart sound signal, so as to improve the accuracy of removing the environmental noise features in the heart sound signal.

[0044] Exemplarily, the device also includes a reminder module, which is used to output a first reminder message to remind the user to adjust the measurement posture when the physiological sound signal strength of the physiological sound signal is less than or equal to a preset physiological sound signal strength threshold; and when the noise signal strength of the second environmental noise signal is greater than or equal to the preset noise signal strength threshold, the reminder module is also used to output a second reminder message to remind the user to select a new environment to collect physiological sounds.

[0045] The reminder module includes a signal output module such as a speaker and a display, which is used to output sound signals, text signals or image signals, etc.

[0046] The reason why the physiological sound signal intensity of the physiological sound signal is less than or equal to the preset physiological sound signal intensity threshold is that the physiological sound collection device is not close to the human body. For example, the user uses it through the clothes or does not make the physiological sound collection device fit closely to the chest. At this time, the user's measurement posture is incorrect, and the user is reminded by outputting the first reminder message to make the physiological sound collection device close to the human body. For example, the first reminder message is "The physiological sound was not successfully collected, please fit the device to the chest and try again." When the physiological sound signal intensity of the physiological sound signal is greater than the preset physiological sound signal intensity threshold, there is no need to output the reminder message. Among them, the preset physiological sound signal intensity threshold can be set as needed, and this embodiment does not make a specific limitation.

[0047] The noise signal strength of the second environmental noise signal is greater than or equal to the preset noise signal strength threshold. At this time, the measured heart sound signal will be seriously affected by the noise, resulting in inaccurate collected physiological sound signals. Therefore, the second reminder message can be output to remind the user to select a new environment to collect physiological sounds, and when the noise signal strength of the second environmental noise signal is less than the preset noise signal strength threshold, there is no need to output the second reminder message. For example, the second reminder message is "Please collect physiological sounds in a quiet environment." Among them, the preset noise signal strength threshold can be set as needed, and this embodiment does not make a specific limitation.

[0048] Compared with the prior art, in which the way to obtain physiological sounds is to perform auscultation when seeking medical treatment, and auscultation needs to be performed by a doctor in the hospital, resulting in inconvenience in obtaining physiological sounds, the present application provides a physiological sound acquisition device, the device including a bone conduction sensor and a first microphone; the bone conduction sensor is used to collect physiological sound signals, the first microphone is used to collect a first environmental noise signal, and the first environmental noise signal is used to correct the physiological sound signal. The present application collects physiological sound signals through the bone conduction sensor in the physiological sound acquisition device, so that the user of the device can operate to obtain physiological sounds without the need for a doctor to operate to obtain physiological sounds. In addition, after the physiological sound signal is corrected by the first environmental noise signal collected by the first microphone, the accuracy of the physiological sound signal is improved.

[0049] Exemplarily, the physiological sound acquisition device can be in devices such as headphones and watches, or can be an independent device only with the function of acquiring physiological sounds. The specific implementation manner of the physiological sound acquisition device is not specifically limited in this embodiment.

[0050] In this embodiment, taking the physiological sound acquisition device in the headphone as an example, refer to Figure 2 , Figure 2 which is a schematic structural diagram of the headphone related to the embodiment of the physiological sound acquisition device of the present application.

[0051] In the second embodiment of the present application, the wearable device includes the above-mentioned physiological sound acquisition device. The physiological sound acquisition device is a physiological sound acquisition device including a bone conduction sensor, a first microphone, and a second microphone, and a physiological sound acquisition device not including a second microphone. The wearable device can be a mobile phone, a tablet, a watch, a bracelet, etc. It should be noted that the physiological sound acquisition device in the wearable device can be integrally provided with the wearable device body, or can be detachably provided from the wearable device body. For the case of detachable setting, the physiological sound acquisition device can be wirelessly connected to the wearable device body, or can be wiredly connected to the wearable device body through a connector (including a pogo-pin connector, a spring sheet connector, a wire connector, etc.). Optionally, in this embodiment, taking the wearable device as a watch (including a physiological sound acquisition device and a watch body), the physiological sound acquisition device is detachably provided and wirelessly connected to the watch body as an example, where the physiological sound acquisition device is a headphone. Refer to Figure 3 and Figure 4 , Figure 3 and Figure 4 which are two schematic structural diagrams of the watch related to the embodiment of the wearable device of the present application. Among them, the headphone can be placed on the watch by means of embedding, magnetic attraction, etc.

[0052] Exemplarily, the wearable main body includes a first communication module, and the headphone includes a second communication module;

[0053] The first communication module is used to receive the physiological sound signal with the environmental noise characteristics removed sent by the second communication module;

[0054] The first communication module includes a Bluetooth module or a UWB (Ultra Wide Band) module;

[0055] The second communication module includes a Bluetooth module or a UWB module.

[0056] It should be noted that the process of processing the heart sound signal in the above first embodiment can also be implemented in the watch body. That is, the earphone sends the heart sound signal, the first environmental noise signal, and the second environmental noise signal it collects to the watch body, and the watch body corrects and reduces the noise of the heart sound signal through the first environmental noise signal and the second environmental noise signal respectively. Among them, the correction and noise reduction process is basically the same as the implementation method in the first embodiment, and will not be elaborated here.

[0057] It can be understood that when the physiological sound collection device is integrally provided with the wearable device body, the user can use the wearable device to be close to the chest wall.

[0058] Exemplarily, the wearable main body further includes a heart monitoring trigger data acquisition module; the heart monitoring trigger data acquisition module is used to acquire heart monitoring trigger data; the heart monitoring trigger data is used to determine whether the user belongs to a key object of concern for heart health. If so, the wearable main body enters the heart monitoring mode.

[0059] Exemplarily, the heart monitoring trigger data acquisition module is a body fat detection module, and the heart monitoring trigger data is the body fat percentage; if the body fat percentage is greater than or equal to a preset body fat percentage threshold, it is determined that the user belongs to a key object of concern for heart health, and the wearable main body enters the heart monitoring mode.

[0060] Among them, the body fat detection module includes a BIA (Bio-impedance analysis) sensor.

[0061] It can be understood that when the user's body fat percentage exceeds the standard, that is, the body fat percentage is greater than or equal to the preset body fat percentage threshold, the user's heart is very likely to be in an unhealthy state. For such users, they can be determined as key objects of concern for heart health; if the body fat percentage is less than the preset body fat percentage threshold, it can be determined that the user's heart is less likely to be in an unhealthy state, and the heart monitoring mode is not entered. Among them, the preset body fat percentage threshold can be set as needed, and no specific limitation is made in this embodiment.

[0062] Exemplarily, the heart monitoring trigger data acquisition module is a motion detection module, and the heart monitoring trigger data is motion data; the motion data is used to determine whether the frequency of the user's participation in sports is less than or equal to a preset frequency threshold. If so, it is determined that the user belongs to a key object of concern for heart health, and the wearable main body enters the heart monitoring mode. Among them, the motion detection module includes an A+G motion sensor.

[0063] The exercise data includes running record data, basketball playing record data, badminton playing record data, etc. For example, if there are running records on August 5th, September 1st, and October 3rd, it is determined that the user runs once a month, and the user exercises once a month; Another example is that there is a running record on August 5th, a basketball playing record on August 20th, a running record on September 1st, a basketball playing record on September 23rd, a running record on October 3rd, a badminton playing record on October 18th, and a basketball playing record on November 4th, then the user exercises twice a month.

[0064] It should be noted that the preset frequency threshold can be set as needed, and this embodiment does not make specific limitations.

[0065] Exemplarily, to improve the accuracy of determining whether the user is a key object of concern for heart health, the data collected by the body fat detection module and the data collected by the exercise detection module can also be combined for judgment. Specifically, the heart monitoring trigger data acquisition module includes a body fat detection module and an exercise detection module, and the heart monitoring trigger data includes body fat percentage and exercise data; If the body fat percentage is greater than or equal to the preset body fat percentage threshold and the frequency of the user's participation in exercise is less than or equal to the preset frequency threshold, it is determined that the user is a key object of concern for heart health, and the wearing main body enters the heart monitoring mode.

[0066] It can be understood that in this embodiment, only when the body fat percentage is greater than or equal to the preset body fat percentage threshold and the frequency of the user's participation in exercise is less than or equal to the preset frequency threshold, it is determined that the user is a key object of concern for heart health, and when the body fat percentage is greater than or equal to the preset body fat percentage threshold or the frequency of the user's participation in exercise is less than or equal to the preset frequency threshold, it is determined that the user is not a key object of concern for heart health.

[0067] This embodiment avoids misjudgment of whether the user is a key object of concern for heart health and improves the accuracy of determining whether the user is a key object of concern for heart health. That is, when the body fat percentage is greater than or equal to the preset body fat percentage threshold, but the user realizes this problem and starts to exercise frequently; Or when the frequency of the user's participation in exercise is less than or equal to the preset frequency threshold, but the body fat percentage is less than the preset body fat percentage threshold, the user's heart may not be prone to problems.

[0068] Exemplarily, the wearing main body further includes a wearing detection module and a physiological parameter signal acquisition module;

[0069] The wearing detection module is used to determine whether the wearing main body is in a wearing state;

[0070] The physiological parameter signal acquisition module is used to collect the user's physiological parameter signals when the wearing main body is in a wearing state.

[0071] To prevent the user from not wearing the wearable body and still collecting physiological parameter signals, which increases the power consumption of the wearable body and reduces its battery life, in this embodiment, a wearing detection module is also used to determine whether the wearable body is in a worn state, so as to improve the battery life of the wearable body. Among them, the wearing detection module includes a CAP (Capacitance) sensor, an infrared sensor, an ultrasonic sensor, a heart rate sensor, etc.

[0072] Exemplarily, the wearable body further includes a PPG (photoplethysmography) sensor module; the PPG sensor module is used to collect physiological parameter signals of the user.

[0073] Among them, the PPG sensor module includes a PPG sensor and a signal amplification unit, and the physiological parameter signals collected by the PPG sensor also need to be amplified by the signal amplification unit.

[0074] After the wearable body enters the heart monitoring mode, the PPG sensor module monitors indicators such as heart rate and blood oxygen (realized through the collected physiological parameter signals).

[0075] Exemplarily, the wearable body further includes a reminder module; the reminder module is used to give a health reminder to the user according to the health risk level corresponding to the physiological parameter signals.

[0076] The health risk level is set according to how much the indicator exceeds the normal indicator. The health risk level can include high, medium, low, high, medium, lower, lower, etc. Taking the health risk level of high, medium, and low as an example, the indicators exceeding the normal indicator from more to less correspond to high, medium, and low of the health risk level respectively. For example, if the indicator is a heart rate indicator and the normal heart rate indicator is 100, when the heart rate is greater than 100 and less than 120, the health risk level is determined to be low, and at this time, the user may not be prompted; when the heart rate is greater than or equal to 120 and less than 160, the health risk level is determined to be medium, and at this time, it is recommended that the user detect heart sounds; when the heart rate is greater than or equal to 160, the health risk level is determined to be high, and at this time, it is recommended that the user rest or seek medical attention immediately.

[0077] Among them, the reminder module includes a vibration unit, a sound generating unit, etc. When reminding, the vibration unit can vibrate and / or the sound generating unit can generate sound to remind the user.

[0078] It should be noted that relevant data (electrocardiogram data obtained from processing physiological parameter signals) can also be selected to be uploaded to the mobile phone through a wireless communication module (including WIFI / Bluetooth modules, etc.), so that the corresponding APP in the mobile phone can draw a heart health graph based on the relevant data and give relevant life and medical advice.

[0079] It should be noted that both the PPG sensor module and the body fat detection module are arranged on the side that is in direct contact with the user's skin to accurately collect relevant signals. The number thereof is not specifically limited in this embodiment and can be set as needed.

[0080] Exemplarily, the wearable device may further include other units or modules. Refer to Figure 5 and Figure 6 , Figure 5 which is an optional device block diagram in the embodiment of the wearable device of the present application, Figure 6 and which is a schematic flowchart of a data processing method in a preferred embodiment of the wearable device of the present application. Among them, the microprocessor can complete operations such as fetching instructions, executing instructions, and exchanging information with external memories and logic components, and is the arithmetic control part of the wearable device. For example, it is used to process heart sound signals, first environmental noise signals, physiological parameter signals, etc.; the mobile communication module includes a 4G mobile communication module, a 5G mobile communication module, etc., enabling the wearable device to connect to an external network (such as the Internet) through this module; the memory is used to store various application programs and related data (data such as heart sound signals, first environmental noise signals, physiological parameter signals, etc.); the power supply and power management unit is used to supply power to the wearable device and perform power consumption monitoring, control, etc.; in addition to collecting sound signals (such as heart sound signals), the audio module may further include an audio decoding unit, an audio operational amplifier unit, a MIC unit, a speaker unit, etc., and can decode audio content and generate sound.

[0081] Exemplarily, the wearable main body further includes a processor;

[0082] The processor is used to calculate the blood pressure of the user based on the physiological sound signal with environmental noise removed and the physiological parameter signal, and perform corresponding device operations based on the blood pressure.

[0083] If the blood pressure is high blood pressure, the device operations include reminding the user that their blood pressure is high through the reminder module or providing health care advice through the reminder module; if the blood pressure is not high blood pressure, the device operation is to record data for the user to consult or as the data basis for relevant statistics.

[0084] It should be noted that in addition to calculating blood pressure through data, the wearable main body can also determine whether the user has premature heart beats through relevant data.

[0085] It should be noted that the above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application accordingly. Any equivalent structural transformation made under the inventive concept of the present application by using the content of the specification and drawings of the present application, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A physiological sound acquisition device, characterized in that, Applied to a wearable device, the wearable device further includes a microprocessor, and the device includes: A bone conduction sensor, a first microphone, and a second microphone, wherein the position of the second microphone is far from the bone conduction sensor; The bone conduction sensor is used to collect physiological sound signals, the first microphone is used to collect first environmental noise signals, and the first environmental noise signals are used to correct the physiological sound signals, and the physiological sound signals include heart sound signals; The second microphone is used to collect second environmental noise signals; when there are the same environmental noise characteristics in the second environmental noise signals as those in the first environmental noise signals, the heart sound signals are used to subtract the second environmental noise signals to remove the environmental noise characteristics in the physiological sound signals; The microprocessor is used to determine whether abnormal sound characteristics in the heart sound signals exist in the first environmental noise signals. If the abnormal sound characteristics exist in the first environmental noise signals, it is determined that the abnormal sound characteristics are acquisition errors to correct the heart sound signals.

2. The device according to claim 1, characterized in that, The device further includes a reminder module. The reminder module is used to output a first reminder message when the physiological sound signal intensity of the physiological sound signals is less than or equal to a preset physiological sound signal intensity threshold to remind the user to adjust the measurement posture; and when the noise signal intensity of the second environmental noise signals is greater than or equal to a preset noise signal intensity threshold, the reminder module is further used to output a second reminder message to remind the user to select a new environment to collect physiological sounds.

3. A wearable device, characterized in that, The wearable device includes a wearable main body and earphones: The earphones include the physiological sound acquisition device according to any one of claims 1 to 2.

4. The wearable device according to claim 3, characterized in that, The wearable main body includes a first communication module, and the earphones include a second communication module; The first communication module is used to receive the physiological sound signals with environmental noise characteristics removed sent by the second communication module; The first communication module includes a Bluetooth module or a UWB module; The second communication module includes a Bluetooth module or a UWB module.

5. The wearable device according to claim 4, characterized in that, The wearable main body further includes a heart monitoring trigger data acquisition module; the heart monitoring trigger data acquisition module is used to collect heart monitoring trigger data; the heart monitoring trigger data is used to determine whether the user is a key object of concern for heart health. If so, the wearable main body enters the heart monitoring mode.

6. The wearable device according to claim 5, characterized in that, The heart monitoring trigger data acquisition module is a body fat detection module, and the heart monitoring trigger data is the body fat percentage; if the body fat percentage is greater than or equal to a preset body fat percentage threshold, it is determined that the user is a key object of concern for heart health, and the wearable main body enters the heart monitoring mode.

7. The wearable device according to claim 5, characterized in that, The heart monitoring trigger data acquisition module is a motion detection module, and the heart monitoring trigger data is motion data; the motion data is used to determine whether the frequency of the user participating in sports is less than or equal to a preset frequency threshold. If so, it is determined that the user is a key object of concern for heart health, and the wearable main body enters the heart monitoring mode.

8. The wearable device according to claim 5, characterized in that, The heart monitoring trigger data acquisition module includes a body fat detection module and a motion detection module, and the heart monitoring trigger data includes body fat percentage and motion data; if the body fat percentage is greater than or equal to a preset body fat percentage threshold and the frequency of the user's participation in sports is less than or equal to a preset frequency threshold, it is determined that the user belongs to the key object of concern for heart health, and the wearable main body enters the heart monitoring mode.

9. The wearable device according to any one of claims 6 - 8, characterized in that, The wearable main body further includes a wearing detection module and a physiological parameter signal acquisition module; The wearing detection module is used to determine whether the wearable main body is in a wearing state; The physiological parameter signal acquisition module is used to collect the physiological parameter signals of the user when the wearable main body is in a wearing state.

10. The wearable device according to claim 9, characterized in that, The wearable main body further includes a processor: The processor is used to calculate the blood pressure of the user based on the physiological sound signal with environmental noise characteristics removed and the physiological parameter signals, and perform corresponding device operations based on the blood pressure.

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