CN106730352A - A kind of portable heart defibrillator and ecg signal acquiring method based on bluetooth - Google Patents
A kind of portable heart defibrillator and ecg signal acquiring method based on bluetooth Download PDFInfo
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- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
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Abstract
The invention discloses a kind of portable heart defibrillator based on bluetooth, including：Controller；Electrocardiogram acquisition module, for gathering electrocardiosignal, the electrocardiogram acquisition module is connected by A/D converter with controller, and electrocardial analog signal is converted into electrocardiographicdigital digital signals and controller is passed to；Bluetooth module, it is connected with controller, for carrying out Wireless Data Transmission with mobile phone；Charge-discharge modules, it is connected with the controller, to human body electric defibrillation after in the control, it is charged under controlling.The portable heart defibrillator based on bluetooth that the present invention is provided, compared with existing portable heart defibrillator, with advanced Acquisition Circuit be integrated Bluetooth Communication Technology by the present invention, can obtain correct electrocardiosignal, and can transmit data on mobile phone.Present invention also offers a kind of ecg signal acquiring method of the portable heart defibrillator based on bluetooth.
Description
Technical field
The invention belongs to technical field of medical instruments, more particularly to a kind of portable heart defibrillator based on bluetooth.
Background technology
" quivering room " this noun is in fact long-standing, and people are also more and more comprehensive to its awareness and understanding.There are many sections
Scholar is made that outstanding contributions.The defibrillation of early stage can trace back to 1882, and American scientist Battelli and Prevost pass through
It is experimentally confirmed that the alternating current of high intensity has very great help to defibrillation.The direct electricity to heart of Mcwilliam inductions in 1887
Hit the room eliminated under chloroformism to quiver, although also failing to be remembered with electrocardiogram (Electrocardiogram, ECG) at that time
Record to room and quiver.1938, Beck and Wiggers carried out the experiment of electric defibrillation to dog, and successful；Real clinical practice is begun
In nineteen forty-seven, the room that Beck AC electric shocks are eliminated under anesthesia is quivered, and is used through chest electric shock curing patient in Zoll in 1956.And
The direct current shock used till today is then that Lown in 1962 is introduced, and First direct current electrical defibrillator comes out.It is nineteen eighty-two, semi-automatic to remove
The device that quivers comes into operation.The nineties, embedded cardioverter-defibrillators (Implantable Cardioverter
Defibrillator, ICD) come out and be applied to clinic.
Defibrillator is biological, medical science, the combination of signal transacting, engineering etc., is related to face very wide, such as fibrillation of heart
Mechanism and defibrillation mechanism；Defibrillation waveform；The pretreatment of electrocardiosignal and the identification of signature waveform；The realization of defibrillation waveform etc. is several
Individual aspect.Automated external defibrillator (Automated External Defibrillator, AED) is in eighties of last century eighties
Just research and develop successfully and start to come into operation.The manufacturer of AED has much till now, the number of pattern and function all phases not to the utmost
Together, but it is the same to have a bit, that is, exergonic mode.Nearly all AED products are released in the form of " ripple "
Exoergic amount, but can be two types by current AED points according to the classification of ripple：Single-phase ripple and bi-phase wave, the latter are current
The study hotspot in defibrillation field, its reason be its in defibrillation, can effectively avoid electric current excessive with control electric current intensity, it is right
Human body causes unnecessary injury.This defibrillation waveform is exactly a bidirectional pulse in fact, and this pulse is adjusted by electric current, it
It is positive that feature is direction within a period of time, and in remaining several milliseconds sense of current changeabout direction, it is this right
Effective control of the sense of current substantially increases the security of AED.In addition to safety factor, in the situation of identical defibrillation effect
Under, the energy required for biphasic defibrillation waveform is almost the 1/2 of monophasic waveform.In hospital, the patient that quivered to room is respectively with two kinds
The clinical test explanation of waveform defibrillation, the defibrillation effect that single-phase ripple defibrillator is obtained with 200 Joule energies, bi-phase wave is only needed to
110~130 joules, and change of the bi-phase wave to ECG ST wave band is smaller.
The correlative study of the domestic product is just at the early-stage, limit popularization of such product at home above clinic and
Using simple dependence import is nor method.So it is desirable that build a set of easy defibrillation system, realizing its basic training
Can, for other embedded defibrillation products provide some valuable references.
The content of the invention
The purpose of the present invention is to overcome existing defibrillator ecg signal acquiring unstable, the defect of filter effect difference,
There is provided a kind of portable heart defibrillator based on bluetooth.
The present invention provide technical scheme be：
A kind of portable heart defibrillator based on bluetooth, including：
Controller；
Electrocardiogram acquisition module, for gathering electrocardiosignal, the electrocardiogram acquisition module is connected by A/D converter with controller
Connect, electrocardial analog signal is converted into electrocardiographicdigital digital signals and controller is passed to；
Bluetooth module, it is connected with controller, for carrying out Wireless Data Transmission with mobile phone；
Charge-discharge modules, it is connected with the controller, and in the control, it shocks by electricity after being charged under controlling to human body
Defibrillation；
Wherein, be filtered for electrocardiographicdigital digital signals x (i) for obtaining by the controller, electrocardiosignal y after being filtered
(i)
Wherein, x (i) is ith sample point original electro-cardiologic signals, and y (i) is ith sample point electrocardiosignal, T after filteringL
It is first threshold, THIt is Second Threshold, λ is constant；
The charge-discharge modules are according to Patient height a, body weight b, age c and healthy index d, and release is corresponding electric
Hit voltage v
Wherein, V0It is standard shock voltage.
Preferably, the controller uses STM32F103ZET6 chips, and including reset circuit and external clock electricity
Road.
Preferably, the bluetooth module uses AD8232 chips.
Preferably, the charge-discharge modules include be sequentially connected power module, inverter circuit, boost rectifying circuit,
And capacitor charging circuit.
Preferably, the power module can export 24V, 9V and 5V direct current.
Preferably, three charging capacitors of parallel connection are provided with the capacitor charging circuit.
Preferably, the charge-discharge modules also include voltage detecting circuit.
A kind of ecg signal acquiring method of the portable heart defibrillator based on bluetooth, comprises the following steps：
Step one, by electrocardiogram acquisition module gather electrocardial analog signal X (t)；
Step 2, electrocardial analog signal X (t) is converted to by electrocardiographicdigital digital signals x (i) by A/D converter, and by electrocardio
Data signal x (i) passes to controller；
Step 3, the controller are filtered to electrocardiographicdigital digital signals x (i), obtain filtered electrocardiosignal y (i)
Wherein, x (i) is ith sample point original electro-cardiologic signals, and y (i) is ith sample point electrocardiosignal, T after filteringL
It is first threshold, THIt is Second Threshold, λ is constant.
Beneficial effects of the present invention embody in the following areas：
(1) A-battery is powered and is raised again to high pressure electric capacity is charged, and is capable of achieving high-voltage high-speed and is charged and be easy to carry
Or deposit in public places.Design circuit can be realized out on small area circuit board, so global design is compact convenient, electrocardio
Collecting part, can be with human body firm contact with electrode holder is carried.Therefore have it is easy to use, be easy to carry, it is simple and practical excellent
Point.
(2) compared with conventional cardiac defibrillator, it is an advantage of the invention that the reality that will can be detected equipped with bluetooth sending module
When data is activation to mobile phone, be easy to Field Force that signal on mobile phone is sent into high in the clouds and download or be sent to hospital's work facilitating
Make room carries out data analysis by medical expert, so no matter patient to be room quivered or other diseases can be judged in time
And given treatment to.
(3) present invention employs cut-off frequency AD8232 higher and common mode rejection performance is significantly improved, this can make
ECG signal is able to more quickly restore stabilization, so that the collection of electrocardiosignal needs to overcome many interference in the external world, obtains correct steady
Fixed electrocardiosignal.
To sum up, compared with existing portable heart defibrillator, the present invention is electric by Bluetooth Communication Technology and advanced collection
Road is integrated, and can obtain correct electrocardiosignal, and can transmit data on mobile phone.
Brief description of the drawings
Fig. 1 is the portable heart defibrillator general structure schematic diagram based on bluetooth of the present invention.
Fig. 2 is reset circuit schematic diagram of the present invention.
Fig. 3 is outer clock circuit schematic diagram of the present invention.
Fig. 4 is STM32F103ZET6 minimum systems circuit diagram of the present invention.
Fig. 5 is electrocardiogram acquisition circuit diagram of the present invention.
Fig. 6 is Bluetooth circuit schematic diagram of the present invention.
Fig. 7 is power circuit schematic diagram of the present invention.
Fig. 8 is inverter circuit schematic diagram of the present invention.
Fig. 9 is boosting of the present invention, rectification circuit schematic diagram.
Figure 10 is capacitor charging circuit schematic diagram of the present invention.
Figure 11 is voltage detecting circuit of the present invention
Figure 12 is main program flow chart of the present invention.
Figure 13 is client application flow chart of the present invention.
Figure 14 is normal ecg wave form schematic diagram of the present invention.
Ecg wave form schematic diagram when Figure 15 is larger interference of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
As shown in figure 1, the present invention provides a kind of portable heart defibrillator based on bluetooth, including controller 110, electrocardio
Acquisition module 120, bluetooth module 130, charge-discharge modules 140, A/D converter 150, display circuit 160, key circuit 170.
Wherein, the controller 110 selects STM32F103ZET6 chips, and the controller is 32-bit microprocessor, treatment speed
Degree is fast, multiple functional.
The overall structure of portable heart defibrillator is to control electrocardiogram acquisition module 120 to gather people body-centered by controller 110
Electric signal is simultaneously realized amplifying filtering, to collect and show electrocardio on smart mobile phone 180 by bluetooth module 130 after electrocardiosignal
Waveform, quivers after then being charged to charge-discharge modules 140 to the electric defibrillation of human body 190 according to waveform judgement in the event of room.
The controller 110 includes reset circuit, outer clock circuit, minimum system circuit.
Reset circuit is then mainly used to carry out multiple electricity such as STM32F103ZET6 minimum systems, radio-frequency module, liquid crystal display
The reset on road.
As shown in Fig. 2 the present invention using button reset by the way of, when shift knob S1 is pressed, RESET pins and phase
Connection, its level is pulled low the reset for realizing single-chip microcomputer.When S1 disconnects, RESET level uprises again, and controller is from reset mode
Switch to normal mode of operation.The presence of electric capacity C26 can eliminate clutter, interference and cause that reset circuit is relatively reliable, will not be because of
External interference makes single-chip microcomputer frequent recovery.
As shown in figure 3, in the system of STM32F103ZET6, there is 5 clock sources, respectively HSI high-speed internals clock,
HSE high speed outers clock, LSI low speed internal clocking, LSE low speed externals clock, the output of PLL frequency multiplication of phase locked loop, in the design,
Only need to be designed two outer clock circuit, actual high speed outer clock can both connect quartz/ceramic resonator, and
External clock reference can be connect, frequency range is generally 4MHz-16MHz, 8MHz crystal oscillators is used in the design, by internal system
72MHz can be risen to after frequency multiplication, and low speed external clock is then primarily used to do the clock source of RTC, what is connected in design is
32.768KHz crystal oscillators.
As shown in figure 4, the design of STM32F103ZET6 minimum systems is main by STM32F103ZET6 chip circuits, reset electricity
Road, outside high-speed clock circuit, the partial circuit design composition of outside low-speed clock circuit four.According to whole system design
The function and connected mode of the circuit distribution corresponding I/O mouthfuls to carry out STM32F103ZET6 chips, to realize that total system sets
The reasonability and reliability of meter.
The electrocardiogram acquisition module 120 selects AD8232 chips, and AD8232 is a for ECG and other biological electrical measurement
The integrated signal conditioning module of application.The device is designed for having a case that the noise that motion or remote electrode placement are produced
Lower extraction, amplify and filter faint bioelectrical signals.The design causes super low-power consumption analog-digital converter (ADC) or embedded control
Device processed can easily gather output signal.
AD8232 is a integrated front end, it is adaptable to carry out signal condition to heart biology electric signal to carry out heart rate prison
Shield.Its built-in meter specially amplifier, operational amplifier, a right leg drive amplifier and an intermediate power supplies electricity
Pressure reference voltage buffer.
Additionally, AD8232 built-in lead-fail detector detection circuit and an automatic taibiter, the circuit can be in lead
It is rapid after reconnect to recover signal.There is gain limitation, this instrument amplifier because of half-cell prtential in traditional ECG front ends
Then different, it uses indirect current feedback architecture and integrated blocking amplifier, can not only provide output DC level feedback (letter
Number gain can suppress to carry out the imbalance of self-electrode up to 100), without causing internal node saturation.
AD8232 provides when a low-current source of 100kHz breaks come detecting electrode by instrument amplifier input
Open.This electric current flows into IN- and produces a differential voltage in input by non-essential resistance from IN+, and then the voltage is synchronized
Detect and be compared with internal threshold.The recommended value of the two non-essential resistances is 10M Ω.Relatively low resistance value can make difference pressure
Drop too low and cannot detect, while the input impedance of meeting step-down amplifier.
With direct current lead-fail detector detection pattern conversely, AD8232 can only determine that having electrode to lose is connected, but tool cannot be determined
Body electrode.In this case, LOD+ pins are changed into high level.In the pattern, LOD- pins are not used and are always maintained at logic low
Level state.To that using exchange lead-fail detector pattern, AC/DC pins should be connect into positive supply rail.
Instrument amplifier in AD8232 is designed for applying gain and while filtering nearly direct current signal.This is allowed it to
Small ECG signal is amplified 100 times, while suppressing to be up to the electrode imbalance of ± 300mV.To realize that imbalance suppresses, should be put in instrument
The output end of big device, one RC network of connection between HPSENSE and HPDRIVE, the RC network constitute an integrator, for inciting somebody to action
Any nearly direct current signal feeds back to instrument amplifier, so as to eliminate imbalance, saturation occurs without causing any node, and together
When keep high RST gain.In addition to the imbalance on instrument amplifier input is prevented, the integrator also serves as high-pass filter,
For the influence of the variable signal at a slow speed such as baseline drift to be minimized.The cut-off frequency computing formula of the wave filter is as follows：
Wherein, the unit of R is ohm, and the unit of C is farad.Note, the filter cutoff frequency monopole more estimated than generally
Point wave filter wants high 100 times.Due to the feedback architecture of instrument amplifier, therefore need to be using 100 gains of instrument amplifier to allusion quotation
The filter cutoff frequency formula of type is modified.
Just as any high-pass filter with low cut-off frequency, any quick change on DC maladjustment is required for
Some time sets up.If such change causes instrument amplifier output end saturation occur, S1 switches can of short duration enable 10k Ω
Resistance road strength, so that cut-off frequency is changed into：
When R values are more than 100k Ω, expression formula can be with approximate representation：
Cut-off frequency higher can shorten setup time, so that ECG signal is more quickly restored.
Lead (or reference electrode) is driven to be generally used for the common-mode voltage influences drop for introducing power line and other interference sources
It is extremely minimum.AD8232 extracts common-mode voltage from the input of instrument amplifier, is then provided by RLD amplifiers, to drive phase
Inverted signal enters in patient's body.The function is held nearly constant the voltage between patient and AD8232, so as to significantly improve
Common mode rejection performance.AD8232 drives the electrode using an integrator, the integrator by an internal 150k Ω resistance and
One external capacitive composition.
As shown in figure 5, electrocardio 0.5~30Hz of filtering and amplifying circuit, user's arm and upper body exercises can produce larger fortune
Dynamic pseudomorphism, and long lead causes that system is highly susceptible to common mode disturbances and influences.Need that there is extremely narrow bandpass characteristics, so as to
Heart signal is made a distinction with interference signal.This circuit can eliminate other noises by filtering.
The technology of bluetooth 4.0 is in the 2010 new short-range communication techniques for updating, the short distance communication technology similar to other
Compared to having many advantages, such as, such as：Low in energy consumption, small volume, speed are fast, strong antijamming capability etc..Can quickly have using bluetooth 4.0
What is imitated is communicated with intelligent mobile phone terminal equipment.
As shown in fig. 6, bluetooth module 130 is using HM-13 series bluetooth modules, this kind of module uses CSR bimodulus bluetooth cores
Piece, coordinates ARM framework single-chip microcomputers, supports AT instructions, and user can serial port baud rate, device name, pairing password etc. as needed
Parameter, using flexible.
After electrocardiosignal is collected by electrocardiogram acquisition module 120, electrocardiosignal is connected to HM-13 bluetooth modules
The 120 A/D conversions for carrying are passed to HM-13 bluetooth modules 130 and process electrocardiogram (ECG) data conversion, treatment, send.It is in the design
After system is opened, smart mobile phone constantly monitors local bluetooth port, and detecting electrocardiogram acquisition module can just realize pairing,
Start button is pressed, offer the data that an acquisition module sends by Bluetooth receptions carries out showing the real-time heart on smart mobile phone
Electrical waveform.Data content can in real time be uploaded to cloud space in mobile phone for the Waveform storage for detecting, and medical worker can pass through
The ecg wave form figure of patient is checked in cloud space.
As shown in fig. 7, the portable heart defibrillator that the present invention is provided also includes power circuit, it uses one block of 24V electricity
Pond is come to system power supply, wherein, 7809 can obtain the burning voltage of 9V, and 7805 can provide the 5V voltages of stabilization.
As shown in figure 8, Converting Unit uses H-bridge circuit, realize direct current 24V power inverters into alternating current.As shown in Figure 8
It is H-bridge inverter circuit part.Wherein, 24V is DC power portion independent power source, and PWM1 and PWM2 is the output of inverter controller, this
In design, inverter controller is realized using STC52 single-chip microcomputers, changes delivery outlet level by timing, by single-chip microcomputer
P1.0 mouthfuls, P1.1 mouthfuls come realize export PWM ripples.Out1 and out2 are terminated into next stage boosting part.
Q1, Q2 are managed for IRF4905PMOS, and the 5th generation HEXFETs power field effect pipe IRF4905 of IR uses advanced work
Skill technology is manufactured, with extremely low conduction impedance.
Q3, Q4 are managed for IRF3205NMOS, and the HEXFET power field effect pipes IRF3205 of IR uses advanced technology
Manufacture, with extremely low conduction impedance.This characteristics of IRF4905 and IRF3205, add quick switching rate, and with firm
Durable famous HEXFET designs so that IRF4905 and IRF3205 turns into the extremely super wide device of high efficient and reliable, range of application.
Q5, Q6 are managed for IRF540NMOS, and the enhanced fet power transistor of N channel encapsulated using irrigation canals and ditches technique should
With：DC to DC converter switching power supplies；TV and computer monitor power supply.
Q1, Q2, Q3, Q4 constitute H-bridge inverter circuit, and Q5, Q6 and divider resistance constitute the drive circuit of PMOS, according to electricity
The design of road figure, the conducting voltage of IRF4905 is 19V, and blanking voltage is 24V, and the conducting voltage of IRF3205 is 5V, IRF540
Conducting voltage be 5V, so the present invention using upper figure driving.
As shown in figure 9, the output current of out1 and out2 is boosted by after inductance L filtering by step-up transformer, it
After being acted on by current rectifying and wave filtering circuit, out3 and out4 output direct currents.
As shown in Figure 10, it is in parallel using electric capacity in capacitor charging circuit, it is ensured that the pressure voltage of electric capacity, increase the appearance of electric capacity
Amount, equally can also be in parallel using electric capacity, capacitance is sacrificed to lift pressure voltage, because transformer boost ability in the design
Limited event, without improving pressure voltage, the storage of electric energy is realized only with electric capacity parallel connection.Voltage is 376V.
200J or so is reached, it is necessary to the electric capacity of 1.1mf to reach energy requirement, i.e. discharge energy, therefore uses 3 470uf
Capacitances in series is realized.Out3, out4 are the output of previous pole boosting part, and out5, out6 are exported as part is clicked on, out7,
Out8 is used as capacitance voltage detection signal phase control device part real-time data collection.
As shown in figure 11, current detection section is mainly real-time voltage when detection electric capacity charges, on out7 and out8 is
One-level electric capacity both sides voltage is gone to after amplifier end amplifies signal voltage signal by U1 photoelectrical couplers, it is ensured that output is in 0-
Between 3.3V.Selection photoelectrical coupler because the voltage of voltage and the control side of capacitive side not altogether, so can not directly examine
Survey.Port is exported for detection voltage, access controller.
Present invention also offers a kind of ecg signal acquiring method of the portable heart defibrillator based on bluetooth, including such as
Lower step：
Step one, by electrocardiogram acquisition module gather electrocardial analog signal X (t)；
Step 2, electrocardial analog signal X (t) is converted to by electrocardiographicdigital digital signals x (i) by A/D converter, and by electrocardio
Data signal x (i) passes to controller；
Step 3, the controller are filtered to electrocardiographicdigital digital signals x (i), obtain filtered electrocardiosignal y (i)
Wherein, x (i) is ith sample point original electro-cardiologic signals, and y (i) is ith sample point electrocardiosignal, T after filteringL
It is first threshold, THIt is Second Threshold, λ is constant.
First threshold TLWith Second Threshold THRule of thumb set, it is also possible to be adjusted according to waveform situation.
The charge-discharge modules are according to Patient height a, body weight b, age c and healthy index d, and release is corresponding electric
Hit voltage v
Wherein, V0It is standard shock voltage, generally 24V.
Health index d can be divided into 5 grades, i.e. d=1~5 according to the health status of patient, wherein, 1 represents health status
Worst, 5 to represent health status best.
The portable heart defibrillator based on bluetooth that the present invention is provided, Software for Design is as follows：
(1) design of main program：
Whole system after the power-up, carries out the initialization of system, after initialization terminates, electrocardiogram acquisition is carried out first, passes through
Display carries out the display of ecg wave form, judges whether waveform is normal, if ECG waveform occurs room and quivers, carries out the energy of defibrillation
Amount storage, then carries out defibrillation to patient in a short time.If it is determined that waveform for non-room quiver generation waveform then terminate.Main program
Flow chart is as shown in figure 12.
(2) design of client application：
After smart mobile phone and bluetooth module successful connection, control command to the heart is sent first by bluetooth module main controller
Electric collecting part, judges whether electrocardiogram acquisition module has collected ecg wave form, if do not collect return started, if
Ecg wave form client is collected to start to collect electrocardiogram (ECG) data, then has been judged, if be not received by clear high-quality
Ecg wave form is then returned and restarted, and is shown on the client if it have received.FB(flow block) is as shown in figure 13
(3) ecg wave form analysis：
Being disturbed during ecg signal acquiring can be a lot, is just that the shake of gathered person's arm also brings along larger interference.Figure 14
It is the ecg wave form of normal healthy people.Figure 15 be just started to gather body it is not yet tranquil when ecg wave form.Contrast knows, electrocardio
Patient must be allowed to press from both sides somewhat calmness 3-4s after Top electrode folder during collection, it is impossible to judge that waveform shocks by electricity to patient rashly, patient
It is possible to not be that room is quivered but other diseases.The advantage of this equipment is exactly that to eliminate interference very fast, can in seconds waveform it is extensive
It is multiple normal, realize that figure is gathered.
(4) battery and electric capacity charge and analyze：
Equipment uses battery and is charged to electric capacity, it is contemplated that the patient for usually occurring to quiver room can't be a lot, or even
A very long time will not use sometimes, so needs periodically carry out maintenance charging to the battery of equipment.Had family to ensure
The patient that quivers can be charged to enough electricity when occurring, when the equipment resting period is long or equipment will be carried out after to battery
Charge.And the electricity that battery is deposited not is a lot, the electric current that each charging process needs is all larger, easily sends out circuit
Heat, so to carry out wireline inspection when safeguarding in time, and changes the circuit line for having damaged or soon having damaged in time.Increase is brought back to life every
One possibility of patient.
Electric capacity is energy-storage travelling wave tube and be temporary transient energy storage component, and our charging and dischargings are all quickly carried out,
Also there is the presence of high-pressure situations, so the service life of electric capacity is also limited, electric capacity is easy for appearance after multiple discharge and recharge
The situation for can not filling electricity or electric leakage occurs, and at this moment electric capacity will be used normally, be changed in time.Enter when to equipment
Also pressure voltage detection is carried out to electric capacity during row maintenance, just replacing in time when noting abnormalities.
Although embodiment of the present invention is disclosed as above, it is not restricted to listed in specification and implementation method
With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (8)
1. a kind of portable heart defibrillator based on bluetooth, it is characterised in that including：
Controller；
Electrocardiogram acquisition module, for gathering electrocardiosignal, the electrocardiogram acquisition module is connected by A/D converter with controller,
So that electrocardial analog signal is converted into electrocardiographicdigital digital signals and controller is passed to；
Bluetooth module, it is connected with controller, for carrying out Wireless Data Transmission with mobile phone；
Charge-discharge modules, it is connected with the controller, to human body electric defibrillation after in the control, it is charged under controlling；
Wherein, be filtered for electrocardiographicdigital digital signals x (i) for obtaining by the controller, electrocardiosignal y (i) after being filtered
Wherein, x (i) is ith sample point original electro-cardiologic signals, and y (i) is ith sample point electrocardiosignal, T after filteringLIt is
One threshold value, THIt is Second Threshold, λ is constant；
The charge-discharge modules are according to Patient height a, body weight b, age c and healthy index d, and the corresponding electric shock of release is electric
Pressure v
Wherein, V0It is standard shock voltage.
2. the portable heart defibrillator based on bluetooth according to claim 1, it is characterised in that the controller is used
STM32F103ZET6 chips, and including reset circuit and outer clock circuit.
3. the portable heart defibrillator based on bluetooth according to claim 1, it is characterised in that the bluetooth module is adopted
Use AD8232 chips.
4. the portable heart defibrillator based on bluetooth according to claim 1, it is characterised in that the charge-discharge modules
Including the power module, inverter circuit, boost rectifying circuit and the capacitor charging circuit that are sequentially connected.
5. the portable heart defibrillator based on bluetooth according to claim 4, it is characterised in that the power module energy
Enough export 24V, 9V and 5V direct current.
6. the portable heart defibrillator based on bluetooth according to claim 5, it is characterised in that the electric capacity charges electricity
Three charging capacitors of parallel connection are provided with road.
7. the portable heart defibrillator based on bluetooth according to claim 5, it is characterised in that the charge-discharge modules
Also include voltage detecting circuit.
8. a kind of ecg signal acquiring method of the portable heart defibrillator based on bluetooth, it is characterised in that using such as right
It is required that the portable heart defibrillator based on bluetooth in 1-7 described in any one, and comprise the following steps：
Step one, by electrocardiogram acquisition module gather electrocardial analog signal X (t)；
Step 2, electrocardial analog signal X (t) is converted to by electrocardiographicdigital digital signals x (i) by A/D converter, and by electrocardio numeral
Signal x (i) passes to controller；
Step 3, the controller are filtered to electrocardiographicdigital digital signals x (i), obtain filtered electrocardiosignal y (i)
Wherein, x (i) is ith sample point original electro-cardiologic signals, and y (i) is ith sample point electrocardiosignal, T after filteringLIt is
One threshold value, THIt is Second Threshold, λ is constant.
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| CN107582166A (en) * | 2017-10-12 | 2018-01-16 | 天津市鹰泰利安康医疗科技有限责任公司 | A kind of ECG Synchronization system for the ablation of high pressure steep-sided pulse |
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| CN108543221A (en) * | 2018-05-14 | 2018-09-18 | 上海掌门科技有限公司 | It is a kind of for the stethoscope system of electric defibrillation, electric defibrillation method, equipment and medium |
| CN110292375A (en) * | 2019-07-05 | 2019-10-01 | 陈大为 | Therapeutic apparatus for heart disease |
| CN111450418A (en) * | 2020-03-31 | 2020-07-28 | 韩雪峰 | Sample entropy algorithm for external defibrillator |
| CN111449648A (en) * | 2020-03-31 | 2020-07-28 | 韩雪峰 | Electrocardio acquisition technology based on external defibrillator |
| CN113391539A (en) * | 2021-06-16 | 2021-09-14 | 北京康斯特仪表科技股份有限公司 | RTC (real time clock) calibration method and industrial field calibration device |
| CN114400880A (en) * | 2022-01-30 | 2022-04-26 | 电子科技大学 | Large common mode interference suppression circuit suitable for double electrodes |
| CN114400880B (en) * | 2022-01-30 | 2023-04-18 | 电子科技大学 | Large common mode interference suppression circuit suitable for double electrodes |
| CN115633414A (en) * | 2022-12-21 | 2023-01-20 | 苏州维伟思医疗科技有限公司 | Automatic Bluetooth connection method, device, equipment and storage medium for AED and communicator |
| CN116492598A (en) * | 2023-03-13 | 2023-07-28 | 苏州维伟思医疗科技有限公司 | Cardioversion defibrillation method, device and system with low false alarm rate and storage medium |
| CN116492598B (en) * | 2023-03-13 | 2023-09-29 | 苏州维伟思医疗科技有限公司 | Cardioversion defibrillation method, device and system with low false alarm rate and storage medium |
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