CN105852902A - Method and system for switching auscultation frequency range of electronic auscultator - Google Patents

Method and system for switching auscultation frequency range of electronic auscultator Download PDF

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Publication number
CN105852902A
CN105852902A CN201610266077.2A CN201610266077A CN105852902A CN 105852902 A CN105852902 A CN 105852902A CN 201610266077 A CN201610266077 A CN 201610266077A CN 105852902 A CN105852902 A CN 105852902A
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China
Prior art keywords
auscultation
microprocessor
frequency
threshold
pressure
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CN201610266077.2A
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CN105852902B (en
Inventor
仇国龙
卢小冬
胡冰
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Jiangsu IoT Research and Development Center
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Jiangsu IoT Research and Development Center
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B7/00Instruments for auscultation
    • A61B7/02Stethoscopes
    • A61B7/04Electric stethoscopes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04Constructional details of apparatus
    • A61B2560/0462Apparatus with built-in sensors

Abstract

The invention relates to a method for switching an auscultation frequency range of an electronic auscultator. The system comprises an auscultation loudspeaker and a microprocessor, wherein the auscultation loudspeaker is used for outputting auscultation sound information; the microprocessor is used for controlling the auscultation loudspeaker to output the auscultation frequency range, and is connected with a pressure sensor used for detecting pressure values of an auscultator head part and a detected part and a frequency switching key used for inputting a switching control signal to the microprocessor. According to the invention, the pressure sensor is started through the frequency switching key, the microprocessor collects the pressure values through the pressure sensor and compares the collected pressure values with a pressure threshold value, a metering value sum is adjusted according to a comparison result, the electronic auscultator is switched to a high-frequency auscultation state or a low-frequency auscultation state according to a relationship between the metering value sum and a high-frequency switching threshold value or a low-frequency switching threshold value, the operation is convenient, the switching of the auscultation frequency range of the electronic auscultator can be effectively realized, and safety and reliability are achieved.

Description

The changing method of electronic stethoscope auscultation frequency range and system
Technical field
The present invention relates to a kind of changing method and system, a kind of electronic stethoscope auscultation frequency range Changing method and system, belong to the technical field of electronic stethoscope.
Background technology
Existing electronic stethoscope, it will usually have the function of auscultation different frequency signals, to meet user pair High frequency audio, the auscultation demand of bass.Non-electronic stethoscope is for obtaining preferable high frequency, bass auscultation effect Really, different stethoscope head is generally used when auscultation: membranous type head can filter off in auscultatory sound and be less than The low frequency part of 200Hz, is allowed to more sensitive to high frequency audio, needs to be close to human body skin during use.Bell Head can preferably auscultation bass and noise, touch body surface during use and be examined position.
Electronic stethoscope typically realizes the requirement of auscultation high frequency audio, bass by button and two kinds of methods of software, Wherein, workload when button operation dispersion user auscultation attention, increase auscultation, and software approach needs Being realized by a series of menu operations, process is loaded down with trivial details.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of electronic stethoscope auscultation frequency The changing method of rate scope and system, it is easy to operate, can effectively realize electronic stethoscope auscultation frequency range Switching, safe and reliable.
The technical scheme provided according to the present invention, the changing method of described electronic stethoscope auscultation frequency range, Including the auscultation speaker for exporting auscultated sound information;Also include for control auscultation speaker output listen Examine the microprocessor of frequency range, described microprocessor also be used for detecting stethoscope head and examined position The pressure transducer of force value and for the frequency error factor to microprocessor input switch-over control signal by being bonded Connect;
Frequency error factor button opens the unlatching switching signal of pressure transducer, microprocessor to microprocessor input Pressure transducer is opened, to gather auscultation by pressure transducer at interval of time T according to opening switching signal Device head and the force value at examined position, if the force value of described collection is more than pressure threshold, the most micro-place Variable sum is added up by reason device, if described variable sum is more than high frequency switching threshold, and micro-process Device filters less than bass frequency threshold flowAnd enter high frequency audio auscultation state;
If described variable sum is more than high frequency switching threshold, the force value that pressure transducer gathers is less than pressure During threshold value, then microprocessor reduces variable sum, if current variable sum is less than low frequency switching threshold, Then microprocessor filters higher than high frequency audio frequency threshold fhighAnd enter bass auscultation state.
When the force value of described collection is more than pressure threshold, variable sum is added up 1 by microprocessor;Pressure When the force value of sensor acquisition is less than pressure threshold, microprocessor subtracts 1 to variable sum.
Described pressure transducer is positioned at surface that stethoscope head is affixed with examined position or is positioned at stethoscope head Part and the hand-held surface contacted.
The switched system of a kind of electronic stethoscope auscultation frequency range, including for exporting auscultated sound information Auscultation speaker;Described auscultation speaker and the micro-place for controlling auscultation speaker output auscultation frequency range Reason device connects, described microprocessor also with the pressure for detecting stethoscope head and examined site pressure value Sensor and for the frequency error factor to microprocessor input switch-over control signal by bonded;
Frequency error factor button opens the unlatching switching signal of pressure transducer, microprocessor to microprocessor input Pressure transducer is opened, to gather auscultation by pressure transducer at interval of time T according to opening switching signal Device head and the force value at examined position, if the force value of described collection is more than pressure threshold, the most micro-place Variable sum is added up by reason device, if described variable sum is more than high frequency switching threshold, and micro-process Device filters less than bass frequency threshold flowAnd enter high frequency audio auscultation state;
If described variable sum is more than high frequency switching threshold, the force value that pressure transducer gathers is less than pressure During threshold value, then microprocessor reduces variable sum, if current variable sum is less than low frequency switching threshold, Then microprocessor filters higher than high frequency audio frequency threshold fhighAnd enter bass auscultation state.
When the force value of described collection is more than pressure threshold, variable sum is added up 1 by microprocessor;Pressure When the force value of sensor acquisition is less than pressure threshold, microprocessor subtracts 1 to variable sum.
Described pressure transducer is positioned at surface that stethoscope head is affixed with examined position or is positioned at stethoscope head Part and the hand-held surface contacted.
Advantages of the present invention: being pressed switch to open pressure transducer by frequency error factor, microprocessor is passed by pressure Sensor gathers force value, and the force value of described collection is compared with pressure threshold, and comes according to comparative result Adjust variable sum, according to the relation between variable sum and high frequency switching threshold or low frequency switching threshold, Have been enter into high frequency auscultation state or low frequency auscultation state, easy to operate, can effectively realize electronic stethoscope auscultation The switching of frequency range, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the present invention.
Fig. 2 is a kind of flow chart in being embodied as of the present invention.
Description of reference numerals: 1-microprocessor, 2-pressure transducer, 3-frequency error factor button and 4-auscultation are raised Sound device.
Detailed description of the invention
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in Figure 1: in order to enable effectively to realize the switching of electronic stethoscope auscultation frequency range, bag of the present invention Include the auscultation speaker 4 for exporting auscultated sound information;Also include for control auscultation speaker 4 output listen Examine the microprocessor 1 of frequency range, described microprocessor 1 also be used for detecting stethoscope head and examined portion The pressure transducer 2 of position force value and for inputting the frequency error factor of switch-over control signal to microprocessor 1 Button 3 connects;
Frequency error factor button 3 opens the unlatching switching signal of pressure transducer 2 to microprocessor 1 input, micro- Processor 1 according to open switching signal open pressure transducer 2, with by pressure transducer 2 at interval of the time T gathers the force value of stethoscope head and examined position, if the force value of described collection is more than pressure threshold Time, then variable sum is added up by microprocessor 1, if described variable sum switches threshold more than high frequency During value, microprocessor 1 filters less than bass frequency threshold flowAnd enter high frequency audio auscultation state;
If described variable sum is more than high frequency switching threshold, the force value that pressure transducer 2 gathers is less than pressure During power threshold value, then microprocessor 1 reduces variable sum, if current variable sum switches threshold less than low frequency During value, then microprocessor 1 filters higher than high frequency audio frequency threshold fhighAnd enter bass auscultation state.
Specifically, the auscultation speaker 4 position in electronic stethoscope and effect and existing electronic stethoscope Arrange identical, in the embodiment of the present invention, in electronic stethoscope, also set up microprocessor 1, pressure transducer 2 and frequency error factor button 3, microprocessor 1 can use existing conventional micro-chip processor, micro-process core The concrete form of sheet can select as required, specially known to those skilled in the art.
In the embodiment of the present invention, described pressure transducer 2 is positioned at what stethoscope head and examined position were affixed Surface or be positioned at stethoscope head and the hand-held surface contacted.When the force value of described collection is more than pressure threshold Time, variable sum is added up 1 by microprocessor 1;The force value that pressure transducer 2 gathers is less than pressure threshold Time, microprocessor 1 subtracts 1 to variable sum.
Making microprocessor 1 open pressure transducer 2 by frequency error factor button 3, pressure transducer 2 is opened Qi Hou, can gather the force value between stethoscope head and detection site;Listen when pressure transducer 2 is positioned at When examining device head with the hand-held surface contacted, described pressure is produced by user pressing stethoscope head.Interval The size of time T can be configured as required, can be typically 1s;The size of pressure threshold can also Carry out selection as required to determine, specially known to those skilled in the art.High frequency switching threshold and low frequency Switching threshold can be the most identical numerical value, as being numerical value 3, to eliminate the impact that maloperation causes, high Frequently switching threshold and the concrete numerical value of low frequency switching threshold, it is also possible to be determined according to actual needs, herein Repeat no more.When entering bass auscultation mode, microprocessor 1 no longer filters bass frequency threshold flow Auscultative signal, bass frequency threshold flow, in high frequency audio frequency threshold fhighConcrete numerical value be this technology Known to the personnel of field, here is omitted.
To sum up, the switched system of electronic stethoscope auscultation frequency range of the present invention, including for exporting auscultation sound The auscultation speaker 4 of message breath;Described auscultation speaker 4 exports auscultation frequency with being used for controlling auscultation speaker 4 The microprocessor 1 of rate scope connects, described microprocessor 1 also be used for detecting stethoscope head with examined The pressure transducer 2 of site pressure value and cutting for inputting the frequency of switch-over control signal to microprocessor 1 Change button 3 to connect;
Frequency error factor button 3 opens the unlatching switching signal of pressure transducer 2 to microprocessor 1 input, micro- Processor 1 according to open switching signal open pressure transducer 2, with by pressure transducer 2 at interval of the time T gathers the force value of stethoscope head and examined position, if the force value of described collection is more than pressure threshold Time, then variable sum is added up by microprocessor 1, if described variable sum switches threshold more than high frequency During value, microprocessor 1 filters less than bass frequency threshold flowAnd enter high frequency audio auscultation state;
If described variable sum is more than high frequency switching threshold, the force value that pressure transducer 2 gathers is less than pressure During power threshold value, then microprocessor 1 reduces variable sum, if current variable sum switches threshold less than low frequency During value, then microprocessor 1 filters higher than high frequency audio frequency threshold fhighAnd enter bass auscultation state.
Fig. 2 is that the present invention automatically switches the particular flow sheet of electronic stethoscope auscultation frequency range, particularly as follows:
Step S201 is to start step.
In step S201, length starts pressure transducer 2 by frequency error factor button 3.
In step S202, the per interval T of pressure transducer 2 gathers between stethoscope head and examined position Or and the force value between user hand.In this embodiment, time T is 1S, and main collection is listened Examine the force value between device head and examined position.
Judge whether force value is more than pressure threshold in step S203, if it is, proceed to step S206, no, Proceed to step S205.
In step S205, it is judged that whether electronic stethoscope is in high frequency audio auscultation mode.If it is, proceed to Step S207, no, then proceed to step S202.
In step S206, variable sum adds 1, and proceeds to step S208, and variable sum is that force value surpasses Cross high frequency switching threshold.
In step S207, variable sum subtracts 1, and proceeds to step S208.
In step S208, it is judged that whether variable sum value exceedes low frequency switching threshold, if it is, proceed to step Rapid S209, no, then proceed to step S210.
In step S209, switching electronic stethoscope auscultation mode is high frequency audio auscultation mode, then continues at step S211。
In step S210, switching electronic stethoscope auscultation mode is bass auscultation mode, then continues at step S211。
In step S211, terminate this regulation.
The present invention opens pressure transducer 2 by frequency error factor button 3, and microprocessor 1 passes through pressure transducer 2 gather force value, and the force value of described collection are compared with pressure threshold, and adjust according to comparative result Variable sum, according to the relation between variable sum and high frequency switching threshold or low frequency switching threshold, enters Enter high frequency auscultation state or low frequency auscultation state, easy to operate, can effectively realize electronic stethoscope auscultation frequency The switching of scope, safe and reliable.

Claims (6)

1. a changing method for electronic stethoscope auscultation frequency range, including for exporting auscultated sound information Auscultation speaker (4);It is characterized in that: also include for controlling auscultation speaker (4) output auscultation frequency The microprocessor (1) of scope, described microprocessor (1) also be used for detecting stethoscope head and examined portion Position force value pressure transducer (2) and for microprocessor (1) input switch-over control signal frequency Rate switching key (3) connects;
Frequency error factor button (3) opens the unlatching switching of pressure transducer (2) to microprocessor (1) input Signal, microprocessor (1) opens pressure transducer (2) according to opening switching signal, to pass through pressure sensing Device (2) gathers the force value of stethoscope head and examined position at interval of time T, if the pressure of described collection When force value is more than pressure threshold, then variable sum is added up by microprocessor (1), if described variable When sum is more than high frequency switching threshold, microprocessor (1) filters less than bass frequency threshold flowAnd enter height Frequently sound auscultation state;
If described variable sum is more than high frequency switching threshold, the force value that pressure transducer (2) gathers is less than During pressure threshold, then microprocessor (1) reduces variable sum, if current variable sum cuts less than low frequency When changing threshold value, then microprocessor (1) filters higher than high frequency audio frequency threshold fhighAnd enter bass auscultation shape State.
The changing method of electronic stethoscope auscultation frequency range the most according to claim 1, is characterized in that: When the force value of described collection is more than pressure threshold, variable sum is added up 1 by microprocessor (1);Pressure When the force value that force transducer (2) gathers is less than pressure threshold, microprocessor (1) subtracts 1 to variable sum.
The changing method of electronic stethoscope auscultation frequency range the most according to claim 1, is characterized in that: Described pressure transducer (2) is positioned at surface that stethoscope head is affixed with examined position or is positioned at stethoscope head Part and the hand-held surface contacted.
4. a switched system for electronic stethoscope auscultation frequency range, including for exporting auscultated sound information Auscultation speaker (4);It is characterized in that: described auscultation speaker (4) be used for controlling auscultation speaker (4) The microprocessor (1) of output auscultation frequency range connects, and described microprocessor (1) is also listened with for detection Examine device head and the pressure transducer (2) of examined site pressure value and for defeated to microprocessor (1) The frequency error factor button (3) entering switch-over control signal connects;
Frequency error factor button (3) opens the unlatching switching of pressure transducer (2) to microprocessor (1) input Signal, microprocessor (1) opens pressure transducer (2) according to opening switching signal, to pass through pressure sensing Device (2) gathers the force value of stethoscope head and examined position at interval of time T, if the pressure of described collection When force value is more than pressure threshold, then variable sum is added up by microprocessor (1), if described variable When sum is more than high frequency switching threshold, microprocessor (1) filters less than bass frequency threshold flowAnd enter height Frequently sound auscultation state;
If described variable sum is more than high frequency switching threshold, the force value that pressure transducer (2) gathers is less than During pressure threshold, then microprocessor (1) reduces variable sum, if current variable sum cuts less than low frequency When changing threshold value, then microprocessor (1) filters higher than high frequency audio frequency threshold fhighAnd enter bass auscultation shape State.
The most according to claim 4, the switched system of electronic stethoscope auscultation frequency range, is characterized in that, When the force value of described collection is more than pressure threshold, variable sum is added up 1 by microprocessor (1);Pressure When the force value that force transducer (2) gathers is less than pressure threshold, microprocessor (1) subtracts 1 to variable sum.
The most according to claim 4, the switched system of electronic stethoscope auscultation frequency range, is characterized in that, Described pressure transducer (2) is positioned at surface that stethoscope head is affixed with examined position or is positioned at stethoscope head Part and the hand-held surface contacted.
CN201610266077.2A 2016-04-26 2016-04-26 The switching method and system of electronic auscultation device auscultation frequency range Active CN105852902B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108784733A (en) * 2018-06-28 2018-11-13 上海掌门科技有限公司 auscultation system and method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06181920A (en) * 1992-12-18 1994-07-05 Kunitaka Mizobe Sound collection section for stethoscope
CN1488319A (en) * 2002-10-08 2004-04-14 合世股份有限公司 Multifunctional electronic stethoscope
CN200963147Y (en) * 2006-11-06 2007-10-24 刘向群 Multi-functional stethoscope
CN101766493A (en) * 2010-02-09 2010-07-07 杭州电子科技大学 Portable and visual Bluetooth electronic stethoscope capable of separating heart and lung sounds
CN103654841A (en) * 2013-12-13 2014-03-26 重庆大学 Portable digital stethoscope
CN204581328U (en) * 2015-04-30 2015-08-26 苏州贝莱弗医疗科技有限公司 A kind of electronic stethoscope
CN105266842A (en) * 2015-11-03 2016-01-27 江苏物联网研究发展中心 Auscultation mode switching automatic detection digital stethoscope and auscultation mode switching detection method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06181920A (en) * 1992-12-18 1994-07-05 Kunitaka Mizobe Sound collection section for stethoscope
CN1488319A (en) * 2002-10-08 2004-04-14 合世股份有限公司 Multifunctional electronic stethoscope
CN200963147Y (en) * 2006-11-06 2007-10-24 刘向群 Multi-functional stethoscope
CN101766493A (en) * 2010-02-09 2010-07-07 杭州电子科技大学 Portable and visual Bluetooth electronic stethoscope capable of separating heart and lung sounds
CN103654841A (en) * 2013-12-13 2014-03-26 重庆大学 Portable digital stethoscope
CN204581328U (en) * 2015-04-30 2015-08-26 苏州贝莱弗医疗科技有限公司 A kind of electronic stethoscope
CN105266842A (en) * 2015-11-03 2016-01-27 江苏物联网研究发展中心 Auscultation mode switching automatic detection digital stethoscope and auscultation mode switching detection method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108784733A (en) * 2018-06-28 2018-11-13 上海掌门科技有限公司 auscultation system and method

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