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 PDFInfo
- 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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- 238000002555 auscultation Methods 0.000 title claims abstract description 81
- 238000001514 detection method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003491 Skin Anatomy 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/02—Stethoscopes
- A61B7/04—Electric stethoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/04—Constructional details of apparatus
- A61B2560/0462—Apparatus 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
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266077.2A CN105852902B (en) | 2016-04-26 | 2016-04-26 | The switching method and system of electronic auscultation device auscultation frequency range |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266077.2A CN105852902B (en) | 2016-04-26 | 2016-04-26 | The switching method and system of electronic auscultation device auscultation frequency range |
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| CN105852902A true CN105852902A (en) | 2016-08-17 |
| CN105852902B CN105852902B (en) | 2018-11-30 |
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Cited By (1)
| 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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| JPH06181920A (en) * | 1992-12-18 | 1994-07-05 | Kunitaka Mizobe | Sound collection section for stethoscope |
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| 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 |
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2016
- 2016-04-26 CN CN201610266077.2A patent/CN105852902B/en active Active
Patent Citations (7)
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| Publication number | Publication date |
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| CN105852902B (en) | 2018-11-30 |
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