CN109717894A - A kind of heartbeat detection device that listening to heartbeat and detection method - Google Patents
A kind of heartbeat detection device that listening to heartbeat and detection method Download PDFInfo
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- CN109717894A CN109717894A CN201711025061.3A CN201711025061A CN109717894A CN 109717894 A CN109717894 A CN 109717894A CN 201711025061 A CN201711025061 A CN 201711025061A CN 109717894 A CN109717894 A CN 109717894A
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Abstract
The present invention provides a kind of heartbeat detection device for listening to heartbeat and detection method, the heartbeat detection device includes the circuit system listened to terminal and connect composition with processing terminal；The detection method include from listen to terminal obtain heartbeat modeling signal, corresponding information signal is extracted from heartbeat modeling signal, is depicted as electrocardiogram after amplification, conversion process after being synthesized again with primary sound sound signal after the information signal extracted progress gain process, is calculated the step of average heart rate number rear line display；Using technical solution of the present invention, heartbeat detection is carried out to user using sound transducer, reduce the injury to human body, targeted enhancing processing has been carried out to the voice signal detected, the distortion factor for reducing voice signal improves heartbeat detection accuracy and sensitivity, and detected heartbeat signal is made to have higher noiseproof feature, it is more convenient for drawing electrocardiogram and calculates heart rate, facilitate the operation of medical staff.
Description
Technical field
The present invention relates to the field of medical instrument technology more particularly to a kind of heartbeat detection device for listening to heartbeat and inspections
Survey method.
Background technique
With the development of economy, the living standard of people increasingly improves, and more and more people are for itself and family
The attention rate of the health of people is continuously improved, and health problem has become focus concerned by people, and heartbeat is whether evaluation human body is good for
One of important evidence of health, and heartbeat health parameters generally can directly measure on human body surface, high-precision inspection
The analysis for surveying parameters on human health status plays an important role, currently, in the market for detecting the sensor of human heartbeat
It is most of to use photoplethymograph, based on cardinal principle be: why blood is presented red, be reflected due to blood it is red
Light simultaneously absorbs green light, and heartbeat sensor uses green LED lamp, cooperates photosensitive photoreceptor, and detection any point-in-time flows through
The blood flow of human body artery blood vessel, when heartbeat, the blood flow for flowing through human body artery blood vessel increases, the green light absorbed
Also increase, and blood flow can then be reduced during eartbeat interval, the LED light flashed by hundreds of times every second, we can calculate
Beats per minute out, that is, heart rate, such as: the patent document of Publication No. " CN106821361A " discloses one
The optically focused auxiliary device of the simple heart rate sensor measurement precision of kind, apparatus system are using made of silicone-hydrogel material half
The device of opening.Apparatus system by two-way silicone-hydrogel convex lens group at；But since the calculating of heart rate is still adopted in the invention
It is measured and is calculated with photoplethymograph, this forms higher technical threshold, to skill to those skilled in the art
Art personnel requirement is higher, and operation is inconvenient, and due to being detected to the blood flow in arteries, works as blood flow
Also the detection accuracy of heart rate is very likely influenced when slower, for another example, the patent document of Publication No. " CN101102812A " is open
A kind of cardiac signal data that obtains of providing with template data set and the template of template parameter is to the improvement school of storage template
Quasi- method.More specifically, in illustrative method, believe first with the heart that the template parameter configuration of storage template obtains
Number.Then, once configuration is completed, the heart signal that just will acquire is compared with storage template.Other embodiments include that can plant
Enter cardiac treatment devices, which includes the operation circuit for being configured to execute the illustrative method.In other embodiments, can make
With more than one storage template.Each template can have the template of standalone configuration, allow the heart signal individually obtained sharp
With the first parameter configuration compared with the first template, and second parameter configuration of the utilization compared with the second template；Due to the hair
It is bright to need for heart rate detectaphone to be implanted into human skin, and the device also can in use while generating electrode signal
It is enough to generate corresponding electromagnetic signal, and electromagnetic signal easily causes damages to human health, therefore, which is difficult to obtain wide
General popularization.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of heartbeat detection device for listening to heartbeat and detection sides
Method.
The present invention provides a kind of heartbeat detection device for listening to heartbeat, the heartbeat detections for listening to heartbeat
Device includes:
It listens to terminal: listening to user's for when user needs to detect heartbeat, being attached on the skin surface of user thoracic cavity
Heartbeat modeling signal；
Processing terminal: the processing terminal is connect by cable with the terminal of listening to, and the processing terminal is used for from institute
It states and listens to the heartbeat modeling signal extraction information signal that terminal detects, the information signal extracted is subjected to gain process conversion
Analog signal is synthesized at information, then information synthesis analog signal is synthesized with heartbeat modeling signal and mixes heartbeat modeling signal,
Mixing heartbeat modeling signal is converted into mixing heartbeat digital signal again, electrocardio is finally drawn out according to mixing heartbeat digital signal
Scheme, calculate average heart rate number after be shown to user.
The terminal of listening to includes hollow form detectaphone shell and heartbeat sensor, detectaphone shell have shell ends A and
The perimeter of shell ends B, shell ends A are greater than the perimeter of shell ends B, and heartbeat sensor is installed in detectaphone shell and and shell
End A is close, and the output end of heartbeat sensor listens to the output end of terminal as described in.
The information signal includes tone information signal and envelope information signal.
The shell ends A and shell ends B cross-sectional shape having the same.
The processing terminal include processor shell and be respectively arranged in the intracorporal filter of processor shell, buffer,
Gain process module, synthesizer, signal processing module and display, the input of the output end and filter for listening to terminal
End connection, the output end of filter and the input terminal of buffer connect, the output end of buffer and the input of gain process module
End connection, the output end of gain process module, the output end of buffer are connect with the input terminal of synthesizer in parallel, synthesizer
The connection of the input terminal of output end and signal processing module, the output end of signal processing module and the input terminal of display connect.
The signal processing module includes signal amplifier, A/D converter and electrocardiogram renderer, signal amplifier
Input terminal of the input terminal as the signal processing module, the output end of the synthesizer and the input terminal of signal amplifier connect
It connects, the output end of signal amplifier is successively connected in series with A/D converter, electrocardiogram renderer, the output of electrocardiogram renderer
Hold the output end as the signal processing module.
The processor shell is equipped with handle.
The gain process module includes: information acquisition device, knowledge base memory, gain controller, the generation of gain harmonic wave
Device and multiplier, input terminal of the input terminal of information acquisition device as the gain process module, the input of information acquisition device
End connect with the output end of the buffer, the output end of information acquisition device successively with gain controller, gain harmonic oscillator
It is connected in series, the output end of knowledge base memory and the input terminal of gain controller connect, the output end of gain harmonic oscillator
Also connect in parallel with the input terminal of multiplier with the output end of information acquisition device, the output end of multiplier as the gain at
Manage the output end of module.
The heartbeat sensor (14) is the acoustical-electrical transducer part of electret-type, condenser type type.
In addition, the present invention also provides a kind of listening detection methods of heartbeat, comprising the following steps:
Step 1: the terminal of listening to by being attached to user thoracic cavity skin surface detects user's heartbeat modeling signal；
Step 2: the interference signal in heartbeat modeling signal described in step 1 is filtered out；
Step 3: information signal is extracted from heartbeat modeling signal described in step 2；
Step 4: building standard voice knowledge base, for storing the corresponding of several standard voices with different frequency
Characteristic parameter information；
Step 5: standard voice signal is obtained in standard voice knowledge base described in step 4, information described in step 3 is believed
Number several sub-band signals are divided into, each sub-band signal is compared with corresponding standard voice signal respectively, obtained
Distortion factor predictive information；
Step 6: the distortion factor predictive information according to step 5 generates the higher hamonic wave signal of corresponding order；
Step 7: higher hamonic wave signal described in step 6 is multiplied with information signal described in step 3, obtains information synthesis
Analog signal；
Step 8: filtered heartbeat modeling signal described in the synthesis analog signal of information described in step 7 and step 2 is closed
At, obtain mixing heartbeat modeling signal；
Step 9: mixing heartbeat modeling signal described in step 8 is amplified into processing by signal amplifier；
Step 10: mixing heartbeat digital signal will be converted to by the amplified mixing heartbeat modeling signal of step 9；
Step 11: the mixing heartbeat digital signal according to step 9 draws electrocardiogram and calculates average heart rate number；
Step 12: electrocardiogram described in step 10 and average heart rate number are shown to user.
The beneficial effects of the present invention are:
Using a kind of heartbeat detection device for listening to heartbeat provided by the present invention and detection method, passed using sound
Sensor is placed in user thoracic cavity skin surface and detects to human heartbeat's signal, reduces the injury to human body, due to human body
Heartbeat signal is weaker, by extracting corresponding tone information and envelope information from the voice signal got, using having
Targetedly processing method carries out enhancing processing to faint voice signal, increases the sound intensity of voice signal, reduces sound
The distortion factor of signal further, will be handled to improve the detection accuracy and sensitivity of heartbeat detection device by enhancing
Voice signal by amplification and A/D conversion process, improve the noiseproof feature of heartbeat signal, use voice signal more easily
User is shown in drawing out electrocardiogram over the display, is convenient for users to operate, and processing terminal and detection terminal can be at
It is used on different positions, reduces the injury caused by human body of electromagnetic radiation caused by entire circuit system, protect ring
Border.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of detection device of the present invention；
Fig. 2 is the structural schematic diagram of detection device of the present invention；
Fig. 3 is the flow chart of detection method；
Fig. 4 is the structural schematic diagram that the present invention listens to terminal.
In figure: 1- listens to terminal, 2- processing terminal, 11- detectaphone shell, 12- shell ends A, 13- shell ends B, 14- heartbeat
Sound transducer.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
The present invention provides a kind of heartbeat detection device for listening to heartbeat and detection methods.
The heartbeat detection device for listening to heartbeat includes:
It listens to terminal 1: listening to user's for when user needs to detect heartbeat, being attached on the skin surface of user thoracic cavity
Heartbeat modeling signal；
Processing terminal 2: processing terminal 2 connect by cable with terminal 1 is listened to, and processing terminal 2 is for from listening to the inspection of terminal 1
The information signal extracted progress gain process is converted into information synthesis mould by the heartbeat modeling signal extraction information signal measured
Quasi- signal, then information synthesis analog signal is synthesized with heartbeat modeling signal and mixes heartbeat modeling signal, then heartbeat will be mixed
Analog signal be converted to mixing heartbeat digital signal, finally according to mixing heartbeat digital signal draw out electrocardiogram, calculate it is flat
User is shown to after equal heart rate number.
Using a kind of heartbeat detection device for listening to heartbeat provided by the present invention and detection method, passed using sound
Sensor is placed in user thoracic cavity skin surface and detects to human heartbeat's signal, reduces the injury to human body, due to human body
Heartbeat signal is weaker, by extracting corresponding tone information and envelope information from the voice signal got, using having
Targetedly processing method carries out enhancing processing to faint voice signal, increases the sound intensity of voice signal, reduces sound
The distortion factor of signal further, will be handled to improve the detection accuracy and sensitivity of heartbeat detection device by enhancing
Voice signal by amplification and A/D conversion process, improve the noiseproof feature of heartbeat signal, use voice signal more easily
User is shown in drawing out electrocardiogram over the display, is convenient for users to operate, and processing terminal 2 and detection terminal can be at
It is used on different positions, reduces the injury caused by human body of electromagnetic radiation caused by entire circuit system, protect ring
Border.
Listening to terminal 1 includes hollow form detectaphone shell 11 and heartbeat sensor 14, and detectaphone shell 11 has shell ends
The perimeter of A12 and shell ends B13, shell ends A12 are greater than the perimeter of shell ends B13, and heartbeat sensor 14, which is installed on, listens to
It is close in device shell 11 and with shell ends A12, the output end of heartbeat sensor 14 is as the output end for listening to terminal 1.
Further, information signal includes tone information signal and envelope information signal.By to tone information signal and
Envelope information signal is handled using targetedly enhancing, is improved the sound intensity of detected heartbeat signal, is improved
The sensitivity of detection device.
Further, the perimeter of shell ends A12 is 1.3 times to 1.5 times of the perimeter of shell ends B13.Further, it listens to
The length of device shell 11 is not less than 80mm, shell ends A12 and shell ends B13 cross-sectional shape having the same.Further, it listens to
The material of device shell 11 is aluminium alloy.When voice signal being made to enter propagation in detectaphone shell 11 in this way, due to the material of detectaphone shell 11
Matter is aluminium alloy, and generated electromagnetic radiation part is absorbed or shielded by the detectaphone shell 11 of aluminium alloy in circuit system, is subtracted
The actual bodily harm to detected user is lacked.
Processing terminal 2 is including processor shell and is respectively arranged in the intracorporal filter of processor shell, buffer, gain
The input terminal of processing module, synthesizer, signal processing module and display, the output end and filter of listening to terminal 1 connects,
The output end of filter and the input terminal of buffer connect, and the output end of buffer is connect with the input terminal of gain process module,
The output end of gain process module, the output end of buffer are connect with the input terminal of synthesizer in parallel, the output end of synthesizer
It is connect with the input terminal of signal processing module, the output end of signal processing module and the input terminal of display connect.Using this hair
The technical solution of bright offer, filter have filtered out other interference components, gain process module root in detected heartbeat signal
According in the voice signal extracted tone information or envelope information take targeted enhanced processing, make heartbeat signal
Intensity of sound be improved, reduce the distortion factor of voice signal.
Signal processing module includes signal amplifier, A/D converter and electrocardiogram renderer, the input of signal amplifier
The input terminal as signal processing module is held, the output end of synthesizer and the input terminal of signal amplifier connect, signal amplifier
Output end successively with A/D converter, electrocardiogram renderer be connected in series, the output end of electrocardiogram renderer is as signal processing
The output end of module.Amplification, A/D turns have passed through by enhanced voice signal using technical solution provided by the invention
Digital signal is converted to after changing processing, digital signal has higher stability and the new energy of anti-noise, convenient for drawing on this basis
Electrocardiogram facilitates medical staff to observe the heartbeat detection result of patient.
Further, processor shell is equipped with handle.In this way convenient for medical staff detect operation when it is easy to carry and
The heartbeat of user is detected when an opportunity arises, further, display is made of LCD display, reduces detection device
Manufacturing cost.
Gain process module include: information acquisition device, knowledge base memory, gain controller, gain harmonic oscillator with
And multiplier, input terminal of the input terminal of information acquisition device as gain process module, the input terminal and caching of information acquisition device
The output end of device connects, and the output end of information acquisition device is successively connected in series with gain controller, gain harmonic oscillator, knowledge
The input terminal of the output end of storehouse memorizer and gain controller connects, the output end of gain harmonic oscillator also with information acquisition device
Output end connect in parallel with the input terminal of multiplier, output end of the output end of multiplier as gain process module.This
So that gain process module is taken voice signal targetedly enhances treatment measures, reduces the distortion factor of voice signal,
And distortion factor predictive information is from the ratio with the concert pitch signal or envelope information that store in knowledge base memory
Compared with, therefore there is very strong specific aim, the detection accuracy of heartbeat detection device can be effectively improved.
Further, heartbeat sensor (14) is the acoustical-electrical transducer part of electret-type, condenser type type.
In addition, the present invention also provides a kind of listening detection methods of heartbeat, comprising the following steps:
Step 1: the terminal 1 of listening to by being attached to user thoracic cavity skin surface detects user's heartbeat modeling signal；
Step 2: the interference signal in step 1 heartbeat modeling signal is filtered out；
Step 3: information signal is extracted from the heartbeat modeling signal of step 2；
Step 4: building standard voice knowledge base, for storing the corresponding of several standard voices with different frequency
Characteristic parameter information；
Step 5: standard voice signal is obtained in step 4 standard voice knowledge base, step 3 information signal is divided into
Several sub-band signals compare each sub-band signal with corresponding standard voice signal respectively, and it is pre- to obtain the distortion factor
Measurement information；
Step 6: the higher hamonic wave signal of corresponding order is generated according to the distortion factor predictive information of step 5；
Step 7: step 6 higher hamonic wave signal is multiplied with step 3 information signal, obtains information synthesis analog signal；
Step 8: step 7 information synthesis analog signal is synthesized with the filtered heartbeat modeling signal of step 2, is obtained
Mix heartbeat modeling signal；
Step 9: step 8 is mixed into heartbeat modeling signal and amplifies processing by signal amplifier；
Step 10: mixing heartbeat digital signal will be converted to by the amplified mixing heartbeat modeling signal of step 9；
Step 11: heartbeat digital signal drafting electrocardiogram is mixed according to step 9 and calculates average heart rate number；
Step 12: step 10 electrocardiogram and average heart rate number are shown to user.
Further, step 3 information signal includes one of tone signal or envelope signal or a variety of.
Using a kind of heartbeat detecting method for listening to heartbeat provided by the present invention, it is placed in using sound transducer
User thoracic cavity skin surface detects human heartbeat's signal, reduces the injury to human body, since human heartbeat's sound is believed
It is number weaker, by extracting corresponding tone information and envelope information from the voice signal got, use targetedly place
Reason method carries out enhancing processing to faint voice signal, increases the sound intensity of voice signal, reduces the distortion of voice signal
Degree, so that the detection accuracy and sensitivity of heartbeat detection device are improved, further, by the voice signal by enhancing processing
By amplification and A/D conversion process, the noiseproof feature of heartbeat signal is improved, is used for voice signal more easily in display
On draw out electrocardiogram user shown, be convenient for users to operate, and processing terminal 2 and detection terminal can be at different positions
Upper use reduces the injury caused by human body of electromagnetic radiation caused by entire circuit system, protects environment.
Claims (10)
1. a kind of heartbeat detection device for listening to heartbeat, it is characterised in that: include:
Listen to terminal (1): for when user needs to detect heartbeat, being attached to the heart for listening to user on the skin surface of user thoracic cavity
Jump analog signal；
Processing terminal (2): the processing terminal (2) is connect by cable with the terminal (1) of listening to, the processing terminal (2)
For from the heartbeat modeling signal extraction information signal listening to terminal (1) and detecting, the information signal extracted to be carried out
Gain process is converted into information synthesis analog signal, then information synthesis analog signal is synthesized with heartbeat modeling signal and mixes the heart
Analog signal is jumped, then mixing heartbeat modeling signal is converted into mixing heartbeat digital signal, finally according to mixing heartbeat number letter
Number draw out electrocardiogram, calculate average heart rate number after be shown to user.
2. listening to the heartbeat detection device of heartbeat as described in claim 1, it is characterised in that: described to listen to terminal (1)
Including hollow form detectaphone shell (11) and heartbeat sensor (14), detectaphone shell (11) has shell ends A (12) and shell
It holds B (13), the perimeter of shell ends A (12) is greater than the perimeter of shell ends B (13), and heartbeat sensor (14) is installed on detectaphone
It is close in shell (11) and with shell ends A (12), the output end of heartbeat sensor (14) listens to terminal (1) as described in
Output end.
3. listening to the heartbeat detection device of heartbeat as described in claim 1, it is characterised in that: the information signal includes
Tone information signal and envelope information signal.
4. listening to the heartbeat detection device of heartbeat as claimed in claim 3, it is characterised in that: the shell ends A (12)
With shell ends B (13) cross-sectional shape having the same.
5. listening to the heartbeat detection device of heartbeat as described in claim 1, it is characterised in that: the processing terminal (2)
Including processor shell and be respectively arranged in the intracorporal filter of processor shell, buffer, gain process module, synthesizer,
The input terminal of signal processing module and display, the output end for listening to terminal (1) and filter connects, filter it is defeated
The connection of the input terminal of outlet and buffer, the output end of buffer are connect with the input terminal of gain process module, gain process mould
The output end of block, the output end of buffer are connect with the input terminal of synthesizer in parallel, the output end and signal processing of synthesizer
The input terminal of module connects, and the output end of signal processing module and the input terminal of display connect.
6. listening to the heartbeat detection device of heartbeat as claimed in claim 5, it is characterised in that: the signal processing module
Including signal amplifier, A/D converter and electrocardiogram renderer, the input terminal of signal amplifier is as the signal processing mould
The input terminal of block, the output end of the synthesizer and the input terminal of signal amplifier connect, and the output end of signal amplifier is successively
It is connected in series with A/D converter, electrocardiogram renderer, the output end of electrocardiogram renderer is as the defeated of the signal processing module
Outlet.
7. listening to the heartbeat detection device of heartbeat as claimed in claim 5, it is characterised in that: on the processor shell
Equipped with handle.
8. listening to the heartbeat detection device of heartbeat as described in claim 1, it is characterised in that: the gain process module
It include: information acquisition device, knowledge base memory, gain controller, gain harmonic oscillator and multiplier, information acquisition device
The output end of input terminal of the input terminal as the gain process module, the input terminal of information acquisition device and the buffer connects
Connect, the output end of information acquisition device successively with gain controller, gain harmonic oscillator be connected in series, knowledge base memory it is defeated
The connection of the input terminal of outlet and gain controller, the output end of gain harmonic oscillator are also in parallel with the output end of information acquisition device
The connection of the input terminal of ground and multiplier, output end of the output end of multiplier as the gain process module.
9. listening to the heartbeat detection device of heartbeat as described in claim 1, it is characterised in that: the heartbeat sensing
Device (14) is the acoustical-electrical transducer part of electret-type, condenser type type.
10. a kind of listening detection method of heartbeat, it is characterised in that: the following steps are included:
Step 1: listen to terminal (1) by being attached to user thoracic cavity skin surface detects user's heartbeat modeling signal；
Step 2: the interference signal in heartbeat modeling signal described in step 1 is filtered out；
Step 3: information signal is extracted from heartbeat modeling signal described in step 2；
Step 4: building standard voice knowledge base, for storing the individual features of several standard voices with different frequency
Parameter information；
Step 5: obtaining standard voice signal in standard voice knowledge base described in step 4, information signal described in step 3 is drawn
It is divided into several sub-band signals, each sub-band signal is compared with corresponding standard voice signal respectively, is distorted
Spend predictive information；
Step 6: the distortion factor predictive information according to step 5 generates the higher hamonic wave signal of corresponding order；
Step 7: higher hamonic wave signal described in step 6 is multiplied with information signal described in step 3, obtains information synthesis simulation
Signal；
Step 8: the synthesis analog signal of information described in step 7 is synthesized with filtered heartbeat modeling signal described in step 2,
Obtain mixing heartbeat modeling signal；
Step 9: mixing heartbeat modeling signal described in step 8 is amplified into processing by signal amplifier；
Step 10: mixing heartbeat digital signal will be converted to by the amplified mixing heartbeat modeling signal of step 9；
Step 11: the mixing heartbeat digital signal according to step 9 draws electrocardiogram and calculates average heart rate number；
Step 12: electrocardiogram described in step 10 and average heart rate number are shown to user.
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Application publication date: 20190507 |