CN110037662A - A kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth - Google Patents
A kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth Download PDFInfo
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- CN110037662A CN110037662A CN201910483311.0A CN201910483311A CN110037662A CN 110037662 A CN110037662 A CN 110037662A CN 201910483311 A CN201910483311 A CN 201910483311A CN 110037662 A CN110037662 A CN 110037662A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 33
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 9
- 229910052744 lithium Inorganic materials 0.000 claims description 9
- 230000003993 interaction Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000003745 diagnosis Methods 0.000 abstract description 8
- 238000002555 auscultation Methods 0.000 abstract description 7
- 208000035211 Heart Murmurs Diseases 0.000 abstract description 6
- 230000006870 function Effects 0.000 description 6
- 208000024172 Cardiovascular disease Diseases 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000747 cardiac effect Effects 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000013473 artificial intelligence Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000010247 heart contraction Effects 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004171 remote diagnosis Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
- A61B5/0006—ECG or EEG signals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
- A61B5/002—Monitoring the patient using a local or closed circuit, e.g. in a room or building
-
- 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
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- Engineering & Computer Science (AREA)
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- Heart & Thoracic Surgery (AREA)
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- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
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- Computer Networks & Wireless Communication (AREA)
- Acoustics & Sound (AREA)
- Physiology (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The present invention relates to physiological signal collection technical fields, in particular a kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth, including power module, acquisition module, processor and bluetooth communication, the power module and acquisition module are electrically connected, the acquisition module includes piezoelectric microphone and electrocardioelectrode sensor, the piezoelectric microphone and electrocardioelectrode sensor are communicated to connect with processor data, the bluetooth communication and processor serial port communicate to connect, and processor communicates to connect host computer by bluetooth communication.The present invention, system realizes the synchronous acquisition of 2 road electrocardiosignals, 1 road cardiechema signals, data real-time radio is uploaded using low-power consumption bluetooth, support being locally stored for data, using electrocardiosignal not vulnerable to the characteristic of noise jamming, for auxiliary positioning heart beat cycle, heart sound ecg signal data information is merged, the auscultation accuracy rate of diagnosis of heart murmur is improved.
Description
Technical field
The present invention relates to physiological signal collection technical field, specially a kind of heart sound electrocardiosignal based on bluetooth, which synchronizes, to be adopted
Collection and wireless transmitting system.
Background technique
Cardiovascular disease is known as the first killer of human health, and China's cardiovascular disease illness rate, which is in, continues ascent stage, according to
The number of patients of the current cardiovascular disease in China is calculated close to 300,000,000, the death rate occupies 40% or more of people's disease death composition, long
Year ranks first, and is higher than tumour and Other diseases.
Cardiac auscultation is the main means that doctor carries out cardiovascular disease tentative diagnosis, and cardiovascular disease is suffered from
Person, except its heart sound and extra-heart sounds, in heart contraction or diastole, blood is caused by heart or intravascular generation turbulent flow
Locular wall, valve or vascular vibration can generate different frequency, varying strength, long-term heart murmur, these hearts
Noise is the main foundation of diagnosis of heart disease；Conventional cardiac is auscultated, doctor's human ear is relied primarily on and listens, sentence with doctors experience
It is disconnected, it be easy to cause wrong diagnosis and escape.
With the development of the science and technology such as electronic information technology, artificial intelligence technology, electronic auscultation device comes into being, not only
It is stored after auscultative signal being digitized, can be combined with internet and realize remote diagnosis, in conjunction with artificial intelligence technology
The automatic identification for realizing illness can help doctor to carry out auxiliary diagnosis, reduce misdiagnosis rate；In recent years, domestic and international medical instrument
Occur a plurality of electronic auscultation device products in the market, such product uses the sensing means of acoustics bar none, acquires the heart
Sound signal, by wired or be wirelessly transmitted on mobile phone or computer and carry out subsequent processing.
However, in practical applications, due to being influenced by the other internal organs of environment and human body itself, cardiechema signals are easy to
It is interfered；Heartbeat is be easy to cause due to being influenced by complicated heart murmur especially for the cardiechema signals of cardiac
Period distinguishes unclear, is hard to tell Chu's noise and occurs in systole phase or diastole, to influence subsequent diagnostic result.
Summary of the invention
The purpose of the present invention is to provide a kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth,
To solve the problems mentioned in the above background technology.The heart sound electrocardiosignal synchronous acquisition and wireless transmission system based on bluetooth
System, system, not vulnerable to the characteristic of noise jamming, are used for auxiliary positioning heart beat cycle, merge heart sound electrocardiosignal using electrocardiosignal
Data information improves the auscultation accuracy rate of diagnosis of heart murmur.
To achieve the above object, the invention provides the following technical scheme:
A kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth, including power module, acquisition mould
Block, processor and bluetooth communication, the power module and acquisition module are electrically connected, which includes piezoelectric type
Microphone and electrocardioelectrode sensor, the piezoelectric microphone and electrocardioelectrode sensor with processor data communication link
It connects, the bluetooth communication and processor serial port communicate to connect, and processor is communicated to connect by bluetooth communication
Position machine.
Preferably, the power module includes lithium battery and the LDO circuit connecting with lithium battery, charging circuit, in which:
The LDO circuit and processor are electrically connected, and are powered for processor.
Preferably, the acquisition module further includes analog-digital converter, the piezoelectric microphone and electrocardioelectrode sensor
It is connect with analog-digital converter, the processor passes through I2S interface and SPI interface control connection analog-digital converter.
Preferably, the analog-digital converter includes audio coding decoding chip and electrocardiogram acquisition chip, in which: the piezoelectricity
Formula microphone is connect by audio coding decoding chip with processor I2S interface, and the electrocardioelectrode sensor passes through electrocardiogram acquisition
Chip is connect with processor SPI interface.
Preferably, the bluetooth communication includes control command communication unit and data communication units, in which: the control
Command communication unit processed is for the command interaction between system and host computer, and the data communication units are for the heart after quantifying
Sound, electrocardiogram (ECG) data real-time radio upload to host computer.
Preferably, the processor uses the low-power consumption bluetooth processor with ARM kernel, and the host computer is mobile for mobile phone
Terminal or computer terminal.
It preferably, further include memory module, which includes the flash chip of a piece of 256Mb capacity, the flash
Chip and processor serial port communicate to connect.
Compared with prior art, the beneficial effects of the present invention are:
System, not vulnerable to the characteristic of noise jamming, is used for auxiliary positioning heart beat cycle, merges the heart sound heart using electrocardiosignal
Electrical signal data information improves the auscultation accuracy rate of diagnosis of heart murmur.
System realizes two-way electrocardiosignal and all the way synchronous acquisition of cardiechema signals, locally does data fusion in system
Afterwards, data real-time radio is uploaded using low-power consumption bluetooth, system uses 3.7V lithium battery power supply, in addition, system is also integrated with
Storage chip supports being locally stored for data.
Detailed description of the invention
Fig. 1 is the allomeric function block diagram of present system；
Fig. 2 is present system block diagram；
Fig. 3 is present system software flow pattern.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1~3 are please referred to, the present invention provides a kind of technical solution:
A kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth, using electrocardiosignal not vulnerable to making an uproar
The characteristic of acoustic jamming is used for auxiliary positioning heart beat cycle, merges heart sound ecg signal data information, improves the auscultation of heart murmur
Accuracy rate of diagnosis.System realizes the synchronous acquisition of 2 road electrocardiosignals and 1 road cardiechema signals, locally does data fusion in system
Afterwards, data real-time radio is uploaded using low-power consumption bluetooth, system uses 3.7V lithium battery power supply, in addition, system is also integrated with
Storage chip supports being locally stored for data.
System is using the low-power consumption bluetooth processor with ARM kernel as control core, including power module, acquisition mould
Block, bluetooth communication and memory module；Wherein power module supports the input of 3.7V lithium battery, and supports charging and charge protection
Function；Acquisition module is divided into sensor and analog-digital converter, and it is that piezoelectric type is transaudient respectively that this system, which includes two types sensor,
Device and electrocardioelectrode sensor, and two different analog-digital converters are used according to two kinds of sensors, wherein compiling solution using audio
Code chip (codec) acquires acoustic signal, and sample rate 8KHz is arranged, the 2 road hearts are acquired using the dedicated acquisition chip of electrocardiosignal
Sample rate 500Hz is arranged in electric signal；Bluetooth communication includes control command communication unit and data communication units, wherein controlling
Command communication unit processed is used for the command interaction between system and host computer (not shown), for example start acquisition, pattern switching etc.
Instruction, the heart sound electrocardiogram (ECG) data real-time radio after data communication units are used to quantify upload；Memory module includes 1 256Mb
The flash chip of capacity, is communicated using SPI interface；The allomeric function block diagram of system is as shown in Figure 1.
A kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth by power module, acquisition module,
Bluetooth communication and memory module composition:
1) power module includes charging circuit, LDO circuit composition, and 3.7V lithium battery power supply, input voltage is supported to pass through LDO
Circuit pressure stabilizing exports 3.3V power supply, to processor and other peripheral hardwares and functional module power supply；Independent charging circuit is supported to lithium
Battery charging, and have charging protection function (overcharging protection, Cross prevention etc.).
2) acquisition module includes sensor unit and AD conversion unit, and this system is related to the acquisition of 2 kinds of physiological signals, point
It is not cardiechema signals and electrocardiosignal, wherein heart sound signal acquisition uses piezoelectric microphone, and ecg signal acquiring uses electrode
Piece；For the feature of two kinds of physiological signals, quantified using two different analog-digital converters, wherein cardiechema signals use sound
Frequency codec (codec) carries out analog-to-digital conversion, and setting sample rate is 8KHz, is quantified using 16, processor passes through I2C interface
It configures codec chip register and realizes control, and data receiver is carried out by I2S interface；Electrocardiosignal is adopted using dedicated electrocardio
Collect chip, processor controls chip by SPI interface and receives data, and setting sample rate is 500Hz, quantifies using 16；When
After processor is respectively received heart sound, the data that electrocardiosignal quantifies, data fusion is carried out in inside and data are packaged and are pressed
Contracting, is waited to be uploaded.
3) bluetooth communication use 4.0 communication protocol of low-power consumption bluetooth, mainly realize two functions, one is complete with
Communication of control command and device status information between host computer, such as battery capacity, system operating mode, starting acquisition etc.
The interaction of commanded state information, the second is the heart sound electrocardiogram (ECG) data after acquisition is quantified and is packaged uploads in real time.
4) memory module includes the flash of a piece of 256Mb capacity, and processor is communicated with by SPI interface, completes data
Storage and reading；The store function can guarantee that the data in certain time are not lost in the case where wireless network is obstructed.
System components hardware signal is as follows: the bluetooth processing communication module based on ARM kernel (includes Bluetooth communication mould
Block) model: NRF52832 chip；Piezoelectric microphone model: HKY-06B；Electrocardioelectrode sensor model number: HB-010；Audio is compiled
Decoding chip model: ES8388 chip；Electrocardiogram acquisition chip model: ADS1292 chip.
System block diagram is as shown in Figure 2.
System software includes the parts such as initialization, data acquisition and storage, data are transmitted, control command receives:
1) it initializing, after system electrification, processor first carries out itself and initializes, the initialization including clock, Peripheral Interface,
Then functional module (modulus conversion chip, ble protocol stack, flash etc.) is initialized.
2) data acquisition and storage, processor generate clock, from analog-to-digital conversion core as I2S and the main equipment of SPI interface
Piece receives data, is sent data in caching by DMA, then by another way SPI mouthfuls (connecting with flash) of operation, will count
According in write-in flash, the acquisition and storage of data is realized.
3) data are transmitted, and collected data are merged and be packaged compression, pass through low-power consumption bluetooth agreement by processor
It uploads in real time.
4) control command receives, and user can send control command to system by host computer, including start recording command,
Stop recording command, format flash, stops data transfer command etc.；Meanwhile system also can be by status information (such as battery electricity
Amount, operating mode etc.) according to certain time interval upload host computer.
Software flow figure is as shown in Figure 3.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth, it is characterised in that: including power supply mould
Block, acquisition module, processor and bluetooth communication, the power module and acquisition module are electrically connected, the acquisition module
Including piezoelectric microphone and electrocardioelectrode sensor, the piezoelectric microphone and electrocardioelectrode sensor with processor number
According to communication connection, the bluetooth communication and processor serial port are communicated to connect, and processor is logical by bluetooth communication
Letter connection host computer.
2. a kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth according to claim 1,
Be characterized in that: the power module includes lithium battery and the LDO circuit connecting with lithium battery, charging circuit, in which: described
LDO circuit and processor are electrically connected, and are powered for processor.
3. a kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth according to claim 1,
Be characterized in that: the acquisition module further includes analog-digital converter, the piezoelectric microphone and electrocardioelectrode sensor and modulus
Converter connection, the processor pass through I2S interface and SPI interface control connection analog-digital converter.
4. a kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth according to claim 3,
Be characterized in that: the analog-digital converter includes audio coding decoding chip and electrocardiogram acquisition chip, in which: the piezoelectric type is transaudient
Device connect by audio coding decoding chip with processor I2S interface, the electrocardioelectrode sensor pass through electrocardiogram acquisition chip and
The connection of processor SPI interface.
5. a kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth according to claim 1,
Be characterized in that: the bluetooth communication includes control command communication unit and data communication units, in which: the control command
Communication unit is for the command interaction between system and host computer, and the data communication units are for heart sound, the heart after quantifying
Electric data real-time radio uploads to host computer.
6. a kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth according to claim 1,
Be characterized in that: the processor uses low-power consumption bluetooth processor with ARM kernel, the host computer for mobile terminal of mobile telephone or
Computer terminal.
7. a kind of heart sound electrocardiosignal synchronous acquisition and nothing based on bluetooth described according to claim 1~any one of 6
Line Transmission system, it is characterised in that: it further include memory module, which includes the flash chip of a piece of 256Mb capacity,
The flash chip and processor serial port communicate to connect.
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| CN201910483311.0A CN110037662A (en) | 2019-06-04 | 2019-06-04 | A kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth |
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| CN201910483311.0A CN110037662A (en) | 2019-06-04 | 2019-06-04 | A kind of heart sound electrocardiosignal synchronous acquisition and wireless transmitting system based on bluetooth |
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Cited By (2)
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| WO2023005891A1 (en) * | 2021-07-27 | 2023-02-02 | 上海多闻医疗科技有限公司 | Intelligent stethoscope control circuit, intelligent stethoscope, and electronic device |
| CN115736938A (en) * | 2022-11-17 | 2023-03-07 | 东南大学 | Multi-mode physiological signal acquisition device |
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