CN111544030B - Stethoscope, diagnostic device and diagnostic method - Google Patents
Stethoscope, diagnostic device and diagnostic method Download PDFInfo
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- CN111544030B CN111544030B CN202010428932.1A CN202010428932A CN111544030B CN 111544030 B CN111544030 B CN 111544030B CN 202010428932 A CN202010428932 A CN 202010428932A CN 111544030 B CN111544030 B CN 111544030B
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/02—Stethoscopes
- A61B7/04—Electric stethoscopes
Abstract
The invention discloses a stethoscope, a diagnostic device and a diagnostic method, wherein at least three sound pick-ups and a signal acquisition and transmission module connected with the sound pick-ups are arranged on a flexible base, the central connecting lines of any three sound pick-ups are not on the same straight line, auscultation data synchronously acquired by the sound pick-ups are acquired by the signal acquisition and transmission module, and the acquired auscultation data is transmitted to a far end in a wireless mode. Therefore, auscultation data acquired by the stethoscope can be received from a remote end, and remote auscultation is realized. In the diagnosis device, a data acquisition module is used for acquiring a group of auscultation data acquired by each sound pick-up of the stethoscope in the same time period, wherein each group of auscultation data comprises the intensity value of signals acquired by the corresponding sound pick-up at different time points in the time period; the computing module is used for determining the sound source position and the pronunciation intensity of the signals collected by the sound pick-up according to at least three groups of auscultation data.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a stethoscope, a diagnostic device and a diagnostic method.
Background
Stethoscopes are the most commonly used diagnostic tools for physicians to collect and amplify sounds emanating from the heart, lungs, arteries, veins and other internal organs. When in use, a doctor is required to cling the sound pick-up in the stethoscope to the skin of a patient, and the doctor performs diagnosis according to the heard sound. In the case of medical staff shortage, one-to-one auscultation for each patient may not be guaranteed, and in the telemedicine setting, the existing auscultation method will be completely disabled. Along with the development of big data and artificial intelligence AI technology, the stethoscope is digitally transformed, auscultation information of a patient is recorded, and personal experience of a doctor is converted into a standardized judgment method through the artificial intelligence technology, so that the stethoscope is a necessary trend of the development of auscultation technology.
Disclosure of Invention
The embodiment of the invention provides a stethoscope, a diagnosis device and a diagnosis method, which are used for realizing remote auscultation.
The stethoscope provided by the embodiment of the invention comprises the following components: the flexible base is provided with at least three sound pick-up devices and signal acquisition and transmission modules connected with the sound pick-up devices;
the central connecting lines of any three sound pick-up devices are not on the same straight line;
the signal acquisition and transmission module is used for acquiring auscultation data synchronously acquired by the sound pick-up devices and transmitting the acquired auscultation data to a far end in a wireless mode.
Correspondingly, the embodiment of the invention also provides a diagnostic device applied to the stethoscope, which comprises: the data acquisition module and the calculation module; wherein, the liquid crystal display device comprises a liquid crystal display device,
the data acquisition module is used for: acquiring a group of auscultation data acquired by the stethoscope and respectively acquired by the microphones in the same time period, wherein each group of auscultation data comprises intensity values of signals acquired by the corresponding microphones at different time points in the time period;
the computing module is used for: and determining the sound source position and the pronunciation intensity of the signals acquired by the sound pick-up according to at least three sets of auscultation data.
Optionally, in the diagnostic device provided in the embodiment of the present invention, the calculation module is specifically configured to:
determining a characteristic signal in each set of auscultation data;
determining the characteristic signals with the same characteristics in different sets of auscultation data as the same set of synchronous characteristic signals;
for each set of the synchronization feature signals, determining the position of the sound source of the set of the synchronization feature signals relative to the pickup according to the occurrence time of the synchronization feature signals in at least three sets of auscultation data, and determining the intensity value of the set of the synchronization feature signals according to the intensity value of each of the synchronization feature signals in the set of the synchronization feature signals.
Optionally, in the diagnostic device provided in the embodiment of the present invention, the calculating module is configured to determine a position of a sound source of the set of synchronous characteristic signals relative to the pickup according to a time when the synchronous characteristic signals occur in at least three sets of auscultation data, including:
for each group of synchronous characteristic signals, determining the distance between the pickup corresponding to each group of auscultation data and the sound source of the synchronous characteristic signals according to the product of the occurrence time of the synchronous characteristic signals and the propagation speed of sound in the human body in each group of auscultation data;
and determining the position of the sound source of the group of synchronous characteristic signals relative to the sound pick-up according to the distances between at least three sound pick-ups and the sound sources of the synchronous characteristic signals respectively.
Optionally, in the diagnostic apparatus provided in the embodiment of the present invention, when the number of the sound pickups is greater than 3, the calculating module is configured to determine, according to distances between at least three sound pickups and sound sources of the synchronization feature signals, positions of the sound sources of the set of synchronization feature signals relative to the sound pickups, including:
selecting at least two pickup sets by taking any three pickup sets as a set, wherein three pickup sets in different pickup sets are not identical;
for each pickup group, determining the initial position of the sound source of the group of synchronous characteristic signals relative to the pickup according to the distances between three pickup in the pickup group and the sound source of the synchronous characteristic signals respectively;
and calculating the final position of the sound source of the set of synchronous characteristic signals relative to the pickup according to each determined initial position.
Correspondingly, the embodiment of the invention also provides a diagnosis method applied to the stethoscope, which comprises the following steps:
acquiring a group of auscultation data acquired by the stethoscope and respectively acquired by the microphones in the same time period, wherein each group of auscultation data comprises intensity values of signals acquired by the corresponding microphones at different time points in the time period;
and determining the sound source position and the pronunciation intensity of the signals acquired by the sound pick-up according to at least three sets of auscultation data.
Optionally, in the diagnostic method provided by the embodiment of the present invention, the determining, according to at least three sets of auscultation data, a sound source position and a sound intensity of the signal collected by the sound pickup includes:
determining a characteristic signal in each set of auscultation data;
determining the characteristic signals with the same characteristics in different sets of auscultation data as the same set of synchronous characteristic signals;
for each set of the synchronization feature signals, determining the position of the sound source of the set of the synchronization feature signals relative to the pickup according to the occurrence time of the synchronization feature signals in at least three sets of auscultation data, and determining the intensity value of the set of the synchronization feature signals according to the intensity value of each of the synchronization feature signals in the set of the synchronization feature signals.
Optionally, in the diagnostic method provided by the embodiment of the present invention, the determining the position of the sound source of the set of synchronous characteristic signals relative to the pickup according to the time when the synchronous characteristic signals in at least three sets of auscultation data occur includes:
for each group of synchronous characteristic signals, determining the distance between the pickup corresponding to each group of auscultation data and the sound source of the synchronous characteristic signals according to the product of the occurrence time of the synchronous characteristic signals and the propagation speed of sound in the human body in each group of auscultation data;
and determining the position of the sound source of the group of synchronous characteristic signals relative to the sound pick-up according to the distances between at least three sound pick-ups and the sound sources of the synchronous characteristic signals respectively.
Optionally, in the diagnostic method provided in the embodiment of the present invention, when the number of the sound pickups is greater than 3, determining the position of the sound source of the set of synchronization feature signals relative to the sound pickups according to distances between at least three sound pickups and the sound sources of the synchronization feature signals, respectively, includes:
selecting at least two pickup sets by taking any three pickup sets as a set, wherein three pickup sets in different pickup sets are not identical;
for each pickup group, determining the initial position of the sound source of the group of synchronous characteristic signals relative to the pickup according to the distances between three pickup in the pickup group and the sound source of the synchronous characteristic signals respectively;
and calculating the final position of the sound source of the set of synchronous characteristic signals relative to the pickup according to each determined initial position.
Accordingly, an embodiment of the present invention further provides a computer readable storage medium, where computer instructions are stored, where the computer instructions implement any one of the methods provided in the embodiments of the present invention when executed by a processor.
Correspondingly, the embodiment of the invention also provides an intelligent auscultation system, which comprises the stethoscope provided by the embodiment of the invention and any one of the diagnosis devices provided by the embodiment of the invention.
The invention has the following beneficial effects:
in the stethoscope, at least three sound pick-up devices and signal acquisition and transmission modules connected with the sound pick-up devices are arranged on a flexible base, the central connecting lines of any three sound pick-up devices are not on the same straight line, the central connecting lines of any three sound pick-up devices are ensured to form a plane, auscultation data synchronously acquired by the sound pick-up devices are acquired by the signal acquisition and transmission modules, and the acquired auscultation data are transmitted to a far end in a wireless mode. Therefore, auscultation data acquired by the stethoscope can be received from a remote end, and remote auscultation is realized. And in the diagnostic device, a data acquisition module and a calculation module are included; the auscultation data acquisition module is used for acquiring a group of auscultation data acquired by each sound pick-up of the stethoscope in the same time period, wherein each group of auscultation data comprises the intensity values of signals acquired by the corresponding sound pick-up at different time points in the time period; the computing module is used for determining the sound source position and the pronunciation intensity of the signals collected by the sound pick-up according to at least three groups of auscultation data.
Drawings
Fig. 1 is a schematic structural diagram of a stethoscope according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a diagnostic device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of four sets of auscultation data collected in an embodiment of the present invention;
FIG. 4 is a schematic diagram showing the positions of a sound source and four sound pickups of one of the synchronous characteristic signals according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a sound source calculated by a diagnostic device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an intelligent auscultation system according to an embodiment of the present invention;
fig. 7a is a schematic diagram of data transmission of an intelligent auscultation system according to an embodiment of the present invention;
fig. 7b is a schematic diagram of another data transmission of the intelligent auscultation system according to the embodiment of the present invention;
FIG. 8 is a schematic flow chart of a diagnostic method according to an embodiment of the present invention;
FIG. 9 is a second flow chart of a diagnostic method according to an embodiment of the invention.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a further description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus a repetitive description thereof will be omitted. The words expressing the positions and directions described in the present invention are described by taking the drawings as an example, but can be changed according to the needs, and all the changes are included in the protection scope of the present invention. The drawings of the present invention are merely schematic representations of relative positional relationships and are not intended to represent true proportions.
It is noted that in the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than those herein described, and those skilled in the art may readily devise numerous other arrangements that do not depart from the spirit of the invention. Therefore, the present invention is not limited by the specific embodiments disclosed below. The description hereinafter sets forth the preferred embodiment for carrying out the present application, but is not intended to limit the scope of the present application in general, for the purpose of illustrating the general principles of the present application. The scope of the present application is defined by the appended claims.
The stethoscope, the diagnostic device and the diagnostic method according to the embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The stethoscope 1 provided in the embodiment of the present invention, as shown in fig. 1, includes: a flexible base 10, at least three sound pickups 11 on the flexible base 10, and a signal acquisition and transmission module 12 connected to each sound pickup 11;
the center connecting lines of any three sound pick-up devices 11 are not on the same straight line;
the signal acquisition and transmission module 12 is used for acquiring auscultation data synchronously acquired by each sound pick-up 11 and transmitting the acquired auscultation data to a far end in a wireless mode.
The stethoscope provided by the embodiment of the invention is characterized in that at least three sound pick-up devices and signal acquisition and transmission modules connected with the sound pick-up devices are arranged on the flexible base, the central connecting lines of any three sound pick-up devices are not on the same straight line, the central connecting lines of any three sound pick-up devices form a plane, auscultation data synchronously acquired by the sound pick-up devices are acquired by the signal acquisition and transmission modules, and the acquired auscultation data are transmitted to the far end in a wireless mode. Therefore, auscultation data acquired by the stethoscope can be received from a remote end, and remote auscultation is realized.
In a specific implementation, in the stethoscope provided by the embodiment of the invention, at least three sound collectors are arranged, and the central connecting lines of any three sound collectors are not on the same straight line, so that the central connecting lines of any three sound collectors can form a plane.
In specific implementation, in the stethoscope provided by the embodiment of the invention, the pickup is formed by adopting a medical professional sound collecting sensor, wherein the frequency of sound collected by the sound collecting sensor is 20-200 Hz and 200-600 Hz. Further, the sound collection sensor may be an electret microphone, which is not limited herein.
In a specific implementation, in the stethoscope provided by the embodiment of the invention, the flexible base can be made of soft silica gel material with good compatibility with a human body, so that the pickup can be closely attached to the skin of a patient.
Based on the same inventive concept, an embodiment of the present invention provides a diagnostic device 2 applied to the above stethoscope, as shown in fig. 2, comprising: a data acquisition module 21 and a calculation module 22;
the data acquisition module 21 is configured to: acquiring a corresponding set of auscultation data acquired by each sound pick-up in the same time period, wherein each set of auscultation data comprises the intensity values of signals acquired by the corresponding sound pick-up at different time points in the time period;
the calculation module 22 is configured to: and determining the sound source position and the pronunciation intensity of the signals acquired by the sound pick-up according to at least three sets of auscultation data.
In the implementation, because the central connecting lines of any three sound collectors of the stethoscope are not on the same straight line, the positions of the three sound collectors and the sounding positions of a human body can be utilized to form a three-dimensional space, and therefore the positions of sound sources are determined by utilizing the distances between the three sound collectors and the sounding sound sources. Therefore, the diagnostic device provided by the embodiment of the invention comprises a data acquisition module and a calculation module; the auscultation data acquisition module is used for acquiring a group of auscultation data acquired by each sound pick-up of the stethoscope in the same time period, wherein each group of auscultation data comprises the intensity values of signals acquired by the corresponding sound pick-up at different time points in the time period; the computing module is used for determining the sound source position and the pronunciation intensity of the signals collected by the sound pick-up according to at least three groups of auscultation data.
Optionally, in the diagnostic device provided in the embodiment of the present invention, the calculation module is specifically configured to:
determining characteristic signals in each set of auscultation data;
determining the characteristic signals with the same characteristics in different sets of auscultation data as the same set of synchronous characteristic signals;
for each set of synchronization feature signals, determining the position of the sound source of the set of synchronization feature signals relative to the pickup according to the time when the synchronization feature signals appear in at least three sets of auscultation data, and determining the intensity value of the set of synchronization feature signals according to the intensity value of each synchronization feature signal in the set of synchronization feature signals.
In a specific implementation, in the diagnostic device provided by the embodiment of the present invention, the signal intensity value of the characteristic signal in each set of auscultation data may be greater than a signal of a preset value, which is not limited herein.
Further, in the diagnostic device provided by the embodiment of the invention, the synchronous characteristic signals belonging to the same group have the characteristics that the intensity value, the time point of the synchronous characteristic signal, the intensity value and the time point of the characteristic signals before and after the characteristic signal are basically consistent in each group of auscultation data.
In a specific implementation, taking a stethoscope with 4 microphones as an example, each microphone collects a set of auscultation data, the data acquisition module may refer to fig. 3 for 4 sets of auscultation data S1-S4, and each set of auscultation data Sn includes the intensity value S (n) of the signal collected by the corresponding microphone at different time points in the time period. The auscultation data of each group comprises 8 characteristic signals k 1-k 8, taking the first characteristic signal k1 in the auscultation data Sn of each group as an example, the difference of the intensity values of the characteristic signals k1 in the auscultation data Sn of each group is smaller, and the intensity change trend of 7 characteristic signals k 2-k 8 at the back of the auscultation data is consistent, so that the first characteristic signal k1 in the auscultation data of each group can be determined to be a group of characteristic signals with the same characteristic and is a group of synchronous characteristic signals. And so on, the second characteristic signal k2 in each auscultation data set is a set of characteristic signals with the same characteristics, is a set of synchronous characteristic signals, and the nth characteristic signal kn in each auscultation data set is a set of characteristic signals with the same characteristics, and is a set of synchronous characteristic signals.
In a specific implementation, in the diagnostic device provided in the embodiment of the present invention, the intensity values of the set of synchronization feature signals may be determined according to an average value of the intensity values of each synchronization feature signal in the set of synchronization feature signals, which is not limited herein.
Optionally, in the diagnostic device provided in the embodiment of the present invention, the calculating module is configured to determine a position of a sound source of the synchronization feature signal relative to the pickup according to a time when the synchronization feature signal appears in at least three sets of auscultation data, including:
for each group of synchronous characteristic signals, determining the distance between the sound pick-up corresponding to each group of auscultation data and the sound source of the synchronous characteristic signals according to the product of the occurrence time of the synchronous characteristic signals and the propagation speed of sound in the human body in each group of auscultation data;
and determining the position of the sound source of the group of synchronous characteristic signals relative to the sound pick-up according to the distances between at least three sound pick-ups and the sound sources of the synchronous characteristic signals respectively.
In particular, as shown in fig. 4, taking the stethoscope with 4 microphones as an example, the plane of the flexible base is an x-axis and y-axis plane, and the directions perpendicular to the x-axis and y-axis are z-axis, a reference coordinate system is proposed, in which the reference positions M1 to M4 of the four microphones are known, for example, the reference coordinates of M1 to M4 are m1= (0, 0), m2= (d 2, 0), m3= (0, d1, 0), m4= (d 3, d4, 0), respectively. The coordinates of the sound source E are (x, y, z), the distance from the sound source E to M1 is d1=vt1, the distance from the sound source to M2 is d2=vt2, the distance from the sound source to M3 is d3=vt3, and the distance from the sound source to M4 is d4=vt4. Wherein V represents the propagation speed of sound in human body, which is generally equal to 1540M/s, t1 represents the time when the pickup at M1 position collects the synchronous characteristic signal, t2 represents the time when the pickup at M2 position collects the synchronous characteristic signal, t3 represents the time when the pickup at M3 position collects the synchronous characteristic signal, and t4 represents the time when the pickup at M4 position collects the synchronous characteristic signal. According to the solid geometry principle, any three sets of equations can be selected from D1-M4, and specific values of x, y and z are calculated. For example, D1, D2, and D3 are selected, and the set of equations is established as follows:
the specific values of x, y and z, namely the position of the sound source of the synchronous characteristic signal relative to the pickup, can be calculated according to the equation set.
Optionally, in the diagnostic apparatus provided in the embodiment of the present invention, when the number of sound pickups is greater than 3, the calculating module is configured to determine, according to distances between at least three sound pickups and sound sources of the synchronization feature signals, positions of the sound sources of the set of synchronization feature signals relative to the sound pickups, including:
selecting at least two pickup sets by taking any three pickup sets as a set, wherein three pickup sets in different pickup sets are not identical;
for each sound pickup group, determining the initial position of the sound source of the synchronous characteristic signal relative to the sound pickup according to the distance between the three sound pickup in the sound pickup group and the sound source of the synchronous characteristic signal;
and calculating the final position of the sound source of the set of synchronous characteristic signals relative to the pickup according to each determined initial position.
Also taking fig. 4 as an example, according to the solid geometry principle, any three sets of equations can be selected from D1 to M4, and specific values of x, y and z are calculated. For example, specific values of x, y and z obtained by selecting a set of D1, D2 and D3 are x1, y1 and z1 respectively, specific values of x, y and z obtained by selecting a set of D1, D2 and D4 are x2, y2 and z2 respectively, specific values of x, y and z obtained by selecting a set of D1, D4 and D3 are x3, y3 and z3 respectively, specific values of x, y and z obtained by selecting a set of D4, D2 and D3 are x4, y4 and z4 respectively, x1 to x4 are averaged, y1 to y4 are averaged, z1 to z4 are averaged, and the final position of the sound source of the set of synchronous characteristic signals relative to the pickup is calculated. That is, the accuracy of the calculation result can be improved by averaging a plurality of calculation results to obtain a final calculation result.
In practice, referring to fig. 5, the sound source positions of all the synchronous characteristic signals can be summarized into a stereo view, and the sound source pronunciation intensity can be represented by different colors or different sizes, so that the doctor can further diagnose the disease and the disease incidence position of the patient according to the signal intensity and the visible pronunciation area position in fig. 5.
Based on the same inventive concept, the embodiment of the present invention also provides an intelligent auscultation system, as shown in fig. 6, including the stethoscope 1 provided by the embodiment of the present invention and any one of the diagnostic devices 2 provided by the embodiment of the present invention. Since the principle of the intelligent auscultation system for solving the problems is similar to that of the stethoscope and the diagnostic device, the implementation of the intelligent auscultation system can be referred to the implementation of the stethoscope and the diagnostic device, and the repetition is omitted.
In a specific implementation, as shown in fig. 7a, the stethoscope 1 may transmit auscultation data collected by a sound pick-up to the diagnostic device 2 in a wifi mode, and of course, in a specific implementation, as shown in fig. 7b, the stethoscope 1 may also transmit auscultation data collected by a sound pick-up to the mobile phone 3 in a bluetooth mode, and then transmit auscultation data to the diagnostic device in a wifi, 4G or 5G mode by using the mobile phone 3, which is not limited herein.
The intelligent auscultation system provided by the embodiment of the invention can achieve the following practical application effects:
1. the traditional lung function equipment needs professional operation, is difficult to complete one-time standard test, and the intelligent auscultation system provided by the embodiment of the invention can greatly reduce the operation difficulty, expand the disease screening range and improve the efficiency.
2. The plurality of sound pickups are distributed and collected according to different structural parts of clinical anatomy, so that different lung segment areas of disease damage can be accurately judged, and the disease accumulation range and degree can be judged.
3. Can be used as a tool for quantifying lung diagnosis.
4. Through the arrangement and optimization of sound continuous data, the algorithm can be utilized to judge the respiratory related diseases such as asthma, chronic obstructive pulmonary disease, sleep disorder and the like initially so as to provide a direction for further differential diagnosis.
Based on the same inventive concept, the embodiment of the present invention further provides a diagnosis method applied to any one of the stethoscopes, as shown in fig. 8, including:
s101, acquiring auscultation data of all groups synchronously acquired by all sound collectors acquired by a stethoscope in a preset time period, wherein each group of auscultation data comprises intensity values of signals acquired by the sound collectors at different time points in the preset time period;
s102, determining the sound source position and the pronunciation intensity of the signals acquired by the sound pick-up according to at least three sets of auscultation data.
Optionally, in the diagnostic method provided in the embodiment of the present invention, step S102 determines the sound source position and the sound intensity of the signal collected by the sound pickup according to at least three sets of auscultation data, as shown in fig. 9, including:
s1021, determining characteristic signals in each set of auscultation data;
s1022, determining that characteristic signals with the same characteristics in different sets of auscultation data are synchronous characteristic signals of the same set;
s1022, determining the position of the sound source of the synchronous characteristic signals relative to the pickup according to the occurrence time of the synchronous characteristic signals in at least three sets of auscultation data according to each set of synchronous characteristic signals, and determining the intensity value of each set of synchronous characteristic signals according to the intensity value of each synchronous characteristic signal in the set of synchronous characteristic signals.
Optionally, in the diagnostic method provided by the embodiment of the present invention, determining the position of the sound source of the set of synchronization feature signals relative to the pickup according to the time when the synchronization feature signals in at least three sets of auscultation data occur includes:
for each group of synchronous characteristic signals, determining the distance between the sound pick-up corresponding to each group of auscultation data and the sound source of the synchronous characteristic signals according to the product of the occurrence time of the synchronous characteristic signals and the propagation speed of sound in the human body in each group of auscultation data;
and determining the position of the sound source of the group of synchronous characteristic signals relative to the sound pick-up according to the distances between at least three sound pick-ups and the sound sources of the synchronous characteristic signals respectively.
Optionally, in the diagnostic method provided in the embodiment of the present invention, when the number of sound pickups is greater than 3, determining the position of the sound source of the set of synchronous characteristic signals relative to the sound pickups according to distances between at least three sound pickups and the sound sources of the synchronous characteristic signals, respectively, includes:
selecting at least two pickup sets by taking any three pickup sets as a set, wherein three pickup sets in different pickup sets are not identical;
for each sound pickup group, determining the initial position of the sound source of the synchronous characteristic signal relative to the sound pickup according to the distance between the three sound pickup in the sound pickup group and the sound source of the synchronous characteristic signal;
and calculating the final position of the sound source of the set of synchronous characteristic signals relative to the pickup according to each determined initial position.
In specific implementation, since the principle of solving the problem of the diagnostic method provided by the embodiment of the present invention is similar to that of the aforementioned diagnostic device set, implementation of the diagnostic method can refer to implementation of the aforementioned diagnostic device, and redundant description is omitted.
Based on the same inventive concept, the embodiments of the present invention further provide a computer readable storage medium, where computer instructions are stored, which when executed by a processor, implement any of the methods provided by the embodiments of the present invention.
In particular implementations, the computer-readable storage medium may be non-transitory. For example, the computer readable storage medium may be a ROM (Read-Only Memory), a RAM (Random Access Memory ), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present embodiments may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In the stethoscope, at least three sound pickups and a signal acquisition and transmission module connected with each sound pickup are arranged on a flexible base, the central connecting lines of any three sound pickups are not on the same line, the central connecting lines of any three sound pickups are ensured to form a plane, auscultation data synchronously acquired by each sound pickup are acquired by the signal acquisition and transmission module, and the acquired auscultation data are transmitted to a far end in a wireless mode. Therefore, auscultation data acquired by the stethoscope can be received from a remote end, and remote auscultation is realized. And in the diagnostic device, a data acquisition module and a calculation module are included; the auscultation data acquisition module is used for acquiring a group of auscultation data acquired by each sound pick-up of the stethoscope in the same time period, wherein each group of auscultation data comprises the intensity values of signals acquired by the corresponding sound pick-up at different time points in the time period; the computing module is used for determining the sound source position and the pronunciation intensity of the signals collected by the sound pick-up according to at least three groups of auscultation data.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (4)
1. A diagnostic device for use with a stethoscope, said stethoscope comprising: the flexible base is provided with at least three sound pick-up devices and signal acquisition and transmission modules connected with the sound pick-up devices; the central connecting lines of any three sound pick-up devices are not on the same straight line; the signal acquisition and transmission module is used for acquiring auscultation data synchronously acquired by the sound pick-up devices and transmitting the acquired auscultation data to a far end in a wireless mode; the diagnostic device includes: the data acquisition module and the calculation module; wherein, the liquid crystal display device comprises a liquid crystal display device,
the data acquisition module is used for: acquiring a group of auscultation data acquired by the stethoscope and respectively acquired by the microphones in the same time period, wherein each group of auscultation data comprises intensity values of signals acquired by the corresponding microphones at different time points in the time period;
the computing module is used for: determining a characteristic signal in each set of auscultation data; determining the characteristic signals with the same characteristics in different sets of auscultation data as the same set of synchronous characteristic signals; for each group of synchronous characteristic signals, determining the distance between the pickup corresponding to each group of auscultation data and the sound source of the synchronous characteristic signals according to the product of the occurrence time of the synchronous characteristic signals and the propagation speed of sound in the human body in each group of auscultation data; selecting at least two pickup sets by taking any three pickup sets as a set, wherein three pickup sets in different pickup sets are not identical; determining, for each of the pickup groups, an initial position of a sound source of the set of synchronization feature signals relative to the pickup according to distances between three of the pickup groups and the sound source of the synchronization feature signal, respectively; calculating the final position of the sound source of the group of synchronous characteristic signals relative to the pickup according to each determined initial position; and determining the intensity value of the synchronous characteristic signals according to the intensity value of each synchronous characteristic signal in the synchronous characteristic signals.
2. A auscultation method applied to a stethoscope, the stethoscope comprising: the flexible base is provided with at least three sound pick-up devices and signal acquisition and transmission modules connected with the sound pick-up devices; the central connecting lines of any three sound pick-up devices are not on the same straight line; the signal acquisition and transmission module is used for acquiring auscultation data synchronously acquired by the sound pick-up devices and transmitting the acquired auscultation data to a far end in a wireless mode; the auscultation method comprises the following steps:
acquiring a group of auscultation data acquired by the stethoscope and respectively acquired by the microphones in the same time period, wherein each group of auscultation data comprises intensity values of signals acquired by the corresponding microphones at different time points in the time period;
determining a characteristic signal in each set of auscultation data;
determining the characteristic signals with the same characteristics in different sets of auscultation data as the same set of synchronous characteristic signals;
for each group of synchronous characteristic signals, determining the distance between the pickup corresponding to each group of auscultation data and the sound source of the synchronous characteristic signals according to the product of the occurrence time of the synchronous characteristic signals and the propagation speed of sound in the human body in each group of auscultation data;
selecting at least two pickup sets by taking any three pickup sets as a set, wherein three pickup sets in different pickup sets are not identical; determining, for each of the pickup groups, an initial position of a sound source of the set of synchronization feature signals relative to the pickup according to distances between three of the pickup groups and the sound source of the synchronization feature signal, respectively; calculating the final position of the sound source of the group of synchronous characteristic signals relative to the pickup according to each determined initial position;
and determining the intensity value of the synchronous characteristic signals according to the intensity value of each synchronous characteristic signal in the synchronous characteristic signals.
3. A computer readable storage medium, wherein computer instructions are stored in the storage medium, which when executed by a processor, implement the method of claim 2.
4. An intelligent auscultation system comprising a stethoscope and the diagnostic device of claim 1;
the stethoscope includes: the flexible base is provided with at least three sound pick-up devices and signal acquisition and transmission modules connected with the sound pick-up devices; the central connecting lines of any three sound pick-up devices are not on the same straight line; the signal acquisition and transmission module is used for acquiring auscultation data synchronously acquired by the sound pick-up devices and transmitting the acquired auscultation data to a far end in a wireless mode.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5844997A (en) * | 1996-10-10 | 1998-12-01 | Murphy, Jr.; Raymond L. H. | Method and apparatus for locating the origin of intrathoracic sounds |
| JP5709750B2 (en) * | 2008-09-10 | 2015-04-30 | コーニンクレッカ フィリップス エヌ ヴェ | Sound source localization method and system |
| US8983089B1 (en) * | 2011-11-28 | 2015-03-17 | Rawles Llc | Sound source localization using multiple microphone arrays |
| KR102127640B1 (en) * | 2013-03-28 | 2020-06-30 | 삼성전자주식회사 | Portable teriminal and sound output apparatus and method for providing locations of sound sources in the portable teriminal |
| EP3416564B1 (en) * | 2016-02-17 | 2020-06-03 | Bat Call D. Adler Ltd. | Digital stethoscopes, and auscultation and imaging systems |
| CN105796124B (en) * | 2016-04-18 | 2018-08-24 | 浙江大学 | Mobile cardiophony system and method based on Internet of Things |
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| US10159459B2 (en) * | 2016-11-11 | 2018-12-25 | iMEDI PLUS Inc. | Multi-mic sound collector and system and method for sound localization |
| CN106842131B (en) * | 2017-03-17 | 2019-10-18 | 浙江宇视科技有限公司 | Microphone array sound localization method and device |
| CN107290723B (en) * | 2017-06-22 | 2019-11-05 | 北京地平线信息技术有限公司 | Sound localization method, device and electronic equipment |
| JP7233035B2 (en) * | 2017-08-30 | 2023-03-06 | パナソニックＩｐマネジメント株式会社 | SOUND COLLECTION DEVICE, SOUND COLLECTION METHOD, AND PROGRAM |
| CN108387873A (en) * | 2018-03-29 | 2018-08-10 | 广州视源电子科技股份有限公司 | Source of sound localization method and system, sound box system localization method and sound box system |
| CN109788382A (en) * | 2019-01-25 | 2019-05-21 | 深圳大学 | A kind of distribution microphone array pickup system and method |
| CN109800724B (en) * | 2019-01-25 | 2021-07-06 | 国光电器股份有限公司 | Loudspeaker position determining method, device, terminal and storage medium |
| CN109839640B (en) * | 2019-03-08 | 2020-10-09 | 深圳市沃特沃德股份有限公司 | Sound source positioning method, system, computer equipment and storage medium |
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