CN106725433A - A kind of cardioelectric monitor method and system - Google Patents
A kind of cardioelectric monitor method and system Download PDFInfo
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- CN106725433A CN106725433A CN201611255055.2A CN201611255055A CN106725433A CN 106725433 A CN106725433 A CN 106725433A CN 201611255055 A CN201611255055 A CN 201611255055A CN 106725433 A CN106725433 A CN 106725433A
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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
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/6804—Garments; Clothes
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- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
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- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
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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
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/725—Details of waveform analysis using specific filters therefor, e.g. Kalman or adaptive filters
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Abstract
A kind of cardioelectric monitor system includes electrocardioelectrode, filter circuit, electrocardiogram integrated chip, controller, power supply, wireless transmission circuit, Warning Service device, the electrocardioelectrode is arranged on Wearable ECG clothing, the cardioelectric monitor analog signal that the electrocardioelectrode will be gathered is after filtering after the filtering process of circuit, send to electrocardiogram integrated chip, the electrocardiogram integrated chip sends to controller the cardioelectric monitor data signal after conversion, the controller is by the cardioelectric monitor data signal and ID after compressed encoding, sent to Warning Service device via wireless transmission circuit, Warning Service the historical data of the cardioelectric monitor data signal and the ID is compared after comparative result, and send to first-aid centre the comparative result.The system can note abnormalities and user is succoured by first-aid centre the very first time, be conducive to improving the promptness that user is succoured.
Description
Technical field
The invention belongs to cardioelectric monitor field, more particularly to a kind of cardioelectric monitor method and system.
Background technology
Between past more than 20 years, digitlization innovation occurs in that unprecedented huge advance, not only increasingly influences me
Daily life, while also rapid osmotic is to medical and health care field.In nineteen nineties, full section's diagnosis and treatment towards
The direction of electron medical treatment archives continues to develop, digital technology sanitation and health-care field application also in Rapid Expansion.Digitlization is strong
Health technology has the great potential for changing current medical health care pattern.However, many new technologies are but eventually settled at " finally
One kilometer ", and not up to prior anticipation.Aspectant health consultation and diagnosis and treatment are still the prevailing model of full section's diagnosis and treatment, but
It is that real-time, wearable, unperturbed and multi-modal monitoring system and corresponding solution have begun to progressively should
Use in full section's diagnosis and treatment to improve diagnosis and treatment efficiency.
Electrocardiogram is clinical conventional inspection, not only reflection health of heart directly perceived, moreover it is possible to which mood of embodiment etc. changes.But
Traditional electrocardio equipment is due to test mode, it is impossible to easily carry out long term monitoring, it is difficult in early detection anomalous ecg.
The content of the invention
It is an object of the invention to provide a kind of cardioelectric monitor method and system, with solve prior art electrocardio equipment not
Facilitate long term monitoring, it is difficult to the problem of early detection anomalous ecg.
In a first aspect, the embodiment of the invention provides a kind of cardioelectric monitor system, the system includes electrocardioelectrode, filtering
Circuit, electrocardiogram integrated chip, controller, power supply, wireless transmission circuit, Warning Service device, the electrocardioelectrode is arranged at wears
Wear on formula electrocardio clothing, the cardioelectric monitor analog signal that the electrocardioelectrode will be gathered after the filtering process of circuit, is sent out after filtering
Electrocardiogram integrated chip is delivered to, the electrocardiogram integrated chip sends to controller the cardioelectric monitor data signal after conversion,
The controller sends to pre- cardioelectric monitor data signal and ID after compressed encoding via wireless transmission circuit
Alert server, after be compared for the historical data of the cardioelectric monitor data signal and the ID by Warning Service
Comparative result, and the comparative result is sent to first-aid centre.
With reference in a first aspect, in the first possible implementation of first aspect, the electrocardioelectrode is to be arranged at the heart
Textile electrode on electric clothing, the textile electrode is connected by filter circuit described in conductive braided wire.
With reference in a first aspect, or first aspect the first possible implementation, may be real at second of first aspect
In existing mode, the power supply includes battery and voltage conversion circuit, the input of the voltage conversion circuit and the battery phase
Even, the first output end of the voltage conversion circuit is connected with the energization pins of the electrocardiogram integrated chip, and described first
The voltage of output end is matched with the low voltage power supply value of the electrocardiogram integrated chip, the second output of the voltage conversion circuit
End is connected with the controller.
With reference in a first aspect, or first aspect the first possible implementation, the third in first aspect may be real
In existing mode, the signal input pin of the electrocardiogram integrated chip is with the electrocardioelectrode is by magnet spring pin insert and inserts
Seat is connected.
With reference in a first aspect, or first aspect the first possible implementation, may be real at the 4th kind of first aspect
In existing mode, the wireless transmission circuit is the bluetooth communication circuit based on bluetooth 4.0.
With reference in a first aspect, or first aspect the first possible implementation, may be real at the 5th kind of first aspect
In existing mode, the cardioelectric monitor system also includes timing circuit, and the timing circuit is stopped with the electrocardiogram integrated chip
The dormancy controlling switch of the dormancy controlling switch, and/or the wireless transmission circuit of dormancy controlling switch, and/or the controller
It is connected.
Second aspect, the embodiment of the invention provides a kind of electrocardio prison including cardioelectric monitor system described in any of the above-described
Survey method, methods described includes：
The cardioelectric monitor analog signal of user is gathered by electrocardioelectrode；
The cardioelectric monitor analog signal is filtered, by electrocardiogram integrated chip by the cardioelectric monitor analog signal
Be converted to cardioelectric monitor data signal；
Sent to pre- police uniform after ID and the cardioelectric monitor data signal are compressed into coding by controller
Business device；
Warning Service device obtains the historical data of user according to ID, obtains the historical data of the user and currently
The cardioelectric monitor data signal for taking compares, and the comparative result is sent to warning center.
It is described that the cardioelectric monitor is simulated in the first possible implementation of second aspect with reference to second aspect
Signal is filtered step includes following one or two kinds of：
Potential industrial frequency noise and ringing noise are eliminated by dual bilateral filtering technology and twice iterative technique；
Eliminated by two kinds of parallel noise reductions and myoelectricity and electrode noise interference.
With reference to the first possible implementation of second aspect, in second possible implementation of second aspect, institute
State by dual bilateral filtering technology and iterative technique includes eliminating potential industrial frequency noise and ringing noise step twice：
After the wave filter of end effect signal input first, forward filtering is performed, obtain the first forward filtering signal；
Inverse filtering is performed to the first forward filtering signal, the first inverse filtering signal is obtained；
The first inverse filtering signal iteration is input into first wave filter, the forward filtering is performed, the is obtained
Two forward filtering signals；
The inverse filtering is performed to the second forward filtering signal, first filter not comprising industrial frequency noise is obtained
Ripple signal；
Wherein, first wave filter is according to sample rate, trap frequency and the first resistance band, and original filter
In parameters, be calculated first wave filter.
With reference to the first possible implementation of second aspect, in the third possible implementation of second aspect, institute
State to be eliminated by two kinds of parallel noise reductions is included with myoelectricity and electrode noise interference step：
Parallel one：Decomposed by Empirical mode decomposition and contain noisy intrinsic mode functions IMF, by the intrinsic mode functions
Comprising signal sequence carry out window segmentation according to default length, the max-thresholds and minimum threshold of window are obtained, according to institute
State max-thresholds and minimum threshold is filtered；
Parallel two：The baseline drift in electrocardiosignal is extracted and filtered, flesh is filtered respectively using wavelet method and trapper
Above-mentioned three kinds filtered signals are added the reference signal as sef-adapting filter by electrical interference and Hz noise, and noisy
Electrocardiosignal carries out adaptive-filtering, generates output signal.
In the present invention, cardioelectric monitor analog signal is gathered by electrocardioelectrode, by filter circuit to the cardioelectric monitor
Analog signal is filtered, and filtered signal is converted into cardioelectric monitor data signal by electrocardiogram integrated chip, by controlling
After device carries out compression coding to the data signal, sent to Warning Service device together with ID, Warning Service device by than
More current cardioelectric monitor data signal and the corresponding historical data of ID, generate comparative result and send into first aid
The heart, such that it is able to monitoring effective in real time can be carried out to user, when user's electrocardiogram (ECG) data occurs abnormal, can be with the very first time
Note abnormalities and user is succoured by first-aid centre, be conducive to improving the promptness that user is succoured.
Brief description of the drawings
Fig. 1 is the structural representation of cardioelectric monitor system provided in an embodiment of the present invention；
Fig. 2 is that cardioelectric monitor method provided in an embodiment of the present invention realizes flow chart；
Fig. 3 is the structural representation of electrocardiograph monitoring device provided in an embodiment of the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The main purpose of the embodiment of the present invention is to provide a kind of cardioelectric monitor system and cardioelectric monitor method, existing to solve
There is the cardioelectric monitor system in technology, it has not been convenient to which permanently effective monitoring is carried out to user, so that can not be in user's body state
When occurring abnormal, the very first time notes abnormalities, and timely and effectively succours, is unfavorable for from being unable to facilitate user to take patient
Preferably ensure the problem of the life and health of people.Below in conjunction with the accompanying drawings, the present invention is further illustrated.
Fig. 1 is the structural representation of cardioelectric monitor system provided in an embodiment of the present invention, and the system includes electrocardioelectrode
1st, filter circuit 2, electrocardiogram integrated chip 3, controller 4, power supply 5, wireless transmission circuit 6, Warning Service device 7, the electrocardio
Electrode 1 is arranged on Wearable ECG clothing, cardioelectric monitor analog signal circuit 2 after filtering that the electrocardioelectrode 1 will be gathered
Filtering process after, send to electrocardiogram integrated chip 3, the electrocardiogram integrated chip 3 is by the cardioelectric monitor numeral after conversion
Signal is sent to controller 4, the controller 4 by the cardioelectric monitor data signal and ID after compressed encoding, via
Wireless transmission circuit 6 is sent to Warning Service device 7, and Warning Service is by the cardioelectric monitor data signal and the ID
Historical data be compared after comparative result, and the comparative result is sent to first-aid centre.
Specifically, the electrocardioelectrode 1, the electrocardiosignal for obtaining user.As the preferred embodiment of the present invention,
The electrocardioelectrode 1 uses textile electrode, is arranged on wearable electrocardio clothing.Also, the textile electrode 1 is by conduction
Braided wire is connected to filter circuit.Configured by way of textile electrode on electrocardio clothing, the wearing that user can be facilitated lasting,
And textile electrode effectively can conduct to electrocardiosignal so that the electrocardiosignal of acquisition is reliable and stable.
The filter circuit 2, can be filtered by the way of low-pass filter circuit and high-pass filtering circuit are combined
Treatment, it is also possible to which the processor including being preset with filtering algorithm is filtered treatment to the cardioelectric monitor analog signal.It is described
Filtering algorithm has specific introduction in subsequent processes part.
The electrocardio integrated chip 3, alternatively referred to as ECG (English full name is Electrocardiograph) chip, is used for
The analog signal gathered to recording electrode carries out gain amplification, analog-to-digital conversion etc..The electrocardiogram integrated chip 2 include but not
It is limited to ADS1294, ADS1296, ADS1298, ADS1294R, ADS1296R or ADS1298R.
The application program or software that treatment is analyzed to signal are set or are provided with the controller 4, can be right
The data of collection such as are filtered, compress, encode or encrypt at the operation.The controller can be using the high-performance of super low-power consumption
32 ARM Cortex-M4F processors, the processor has FPU Float Point Unit, can quickly carry out the filtering of electrocardiogram (ECG) data
With the calculating of compression scheduling algorithm, system operation time is reduced.After each sampling processing electrocardiogram (ECG) data, timing electricity can be received
The timing signal on road, controller system enters sleep pattern, by after predetermined period of time, being waken up by timer and being controlled
Device system is sampled next time.Also, the present invention can also be outer by what is do not used in processor according to different application scenarios
If energization pins circuit corresponding with I/O port disconnects or closes, power consumption is further reduced.Circuit structure of the present invention, can be with
The power consumption of processor is set to drop to below 3mW.
The power supply 5 can be the battery of directly power supply, and used as a kind of preferred implementation method, the power supply can include
Battery and voltage conversion circuit, the input of the voltage conversion circuit are connected with the battery, the voltage conversion circuit
First output end is connected with the energization pins of the electrocardiogram integrated chip, and first output end voltage and the electrocardio
The low voltage power supply value matching of figure integrated chip, the second output end of the voltage conversion circuit is connected with the controller.
Certainly, the signal circuit 6 can be connected with the second output end, it is also possible to the first output end phase
Even.
Wherein, the battery can be lithium ion battery, lithium manganese button cell or zinc sky button cell.The battery
Voltage can be 3.0V, or 5.0V, 3.7V etc..Such as, when the voltage of single button cell is 1.5V, can pass through
The mode of series connection, obtains the output voltage of 3.0V.
Voltage conversion circuit in the electrocardio-data collection circuit, can convert for DC-DC, by former direct current by adjusting
Whole its PWM (dutycycle) carrys out the size of the effective voltage of controlled output, can include booster circuit or reduction voltage circuit.Described
One output end is connected with electrocardiogram integrated chip, for electrocardiogram integrated chip provides electric energy.The voltage of first output end can
Think the low voltage value matching of the energization pins of electrocardiogram integrated chip.So that voltage-regulation internal in electrocardiogram integrated chip
Device need not carry out LDO voltage conversions, and LDO voltage conversions can produce larger electric energy loss, thus advantageously reduce chip
Power consumption.So as to be more beneficial for the electrocardio clothing of the wearing ECG detecting that user can be lasting.
The electrocardiogram integrated chip 2, such as ADS1294, ADS1296, ADS1298, ADS1294R, ADS1296R or
ADS1298R etc..The typically collection of its system power supply is 3.3V.But, in the present invention, main core internally uses
Low pressure difference linear voltage regulator LDO is converted into 1.8V, and larger electric energy loss can be produced in transfer process.In the present invention, in order to
System power dissipation is effectively reduced, the 1.8V adjusters of ECG chip internals are prohibited, but by battery by voltage conversion circuit
DC-DC is converted, and after output 1.8V is processed after filtering, is directly used for ECG chips, and power consumption is so just reduced from power supply.
Furthermore it is possible to according to different application scenarios, the unwanted function closed in electrocardiogram integrated chip and pin reduce work(
Consumption.When can make 12 lead, ECG parts power consumption drops to 20mW.
In addition, the present invention may also include timer, the timer can be with the power consumption control of the signal circuit
Pin, and/or electrocardiogram integrated chip power consumption control pin.When signal acquisition need not be carried out, automatically into dormancy mould
Formula such that it is able to save more electric energy.The timer can be realized for controller, it would however also be possible to employ special timing electricity
Road.
The signal circuit 6, is preferably based on the bluetooth communication circuit of the host-host protocol of bluetooth 4.0.The signal transmission
Circuit 6 can be connected with first output end, such as using the transmission plan of low-power consumption bluetooth 4.0 of 1.8V.
In addition, the convenience in order to improve the installation of electrocardiogram acquisition circuit, the signal input part of the electrocardiogram integrated chip
It is provided with the interface being connected with recording electrode.In preferred embodiment, the interface is magnet spring pin insert.Strongly
Magnet makes interface firmly hold, even if bounce is also very firm, spring needle increases the plug life-span, up to 1,000,000 times.There is convenient, letter
Number quality is good, it is firm the advantages of.
Fig. 2 is that cardioelectric monitor method provided in an embodiment of the present invention realizes flow chart, and details are as follows：
The realization of the cardioelectric monitor method, based on cardioelectric monitor system described in Fig. 1, methods described is specifically included：
In step s 201, the cardioelectric monitor analog signal of user is gathered by electrocardioelectrode.
Specifically, the electrocardioelectrode can be textile electrode, the electrocardioelectrode can by conductive braided wire with
Filter circuit is connected.The electrocardioelectrode can be arranged on electrocardio clothing, and user, can be by knitting when the electrocardio clothing is dressed
Thing electrode effectively obtains cardioelectric monitor analog signal.
In step S202, the cardioelectric monitor analog signal is filtered, by electrocardiogram integrated chip by the heart
Pyroelectric monitor analog signal is converted to cardioelectric monitor data signal.
The cardioelectric monitor analog signal is filtered, the power frequency in cardioelectric monitor analog signal can be effectively removed
Disturb, loop noise of shaking and myoelectricity noise and electrode noise etc..
Wherein, step is filtered to the cardioelectric monitor analog signal includes following one or two kinds of：
Potential industrial frequency noise and ringing noise are eliminated by dual bilateral filtering technology and twice iterative technique；
Eliminated by two kinds of parallel noise reductions and myoelectricity and electrode noise interference.
Specifically, described by dual bilateral filtering technology and twice, iterative technique potential industrial frequency noise and shakes to eliminate
Bell noise step includes：
After the wave filter of end effect signal input first, forward filtering is performed, obtain the first forward filtering signal；
Inverse filtering is performed to the first forward filtering signal, the first inverse filtering signal is obtained；
The first inverse filtering signal iteration is input into first wave filter, the forward filtering is performed, the is obtained
Two forward filtering signals；
The inverse filtering is performed to the second forward filtering signal, first filter not comprising industrial frequency noise is obtained
Ripple signal；
Wherein, first wave filter is according to sample rate, trap frequency and the first resistance band, and original filter
In parameters, be calculated first wave filter.
It is as follows that the dual bilateral filtering technology implements process：
1. initialize.The resistance band of given sample rate, trap frequency and trapper, filter coefficient is calculated by formula (1).
Wherein, formula (1) is specially：
fsIt is the sample rate, f0It is the trap frequency, Δ f is first resistance band.
2. first time bilateral filtering.End effect signal is passed through the system that formula (1) is determined, obtain output signal and residual
Part, residual fraction contains potential industrial frequency noise PLI and the loop noise RAs that shakes.This process is filtered equivalent to primary signal
Ripple is twice：It is once from left to right；Another time is from right to left.Because formula (1) is a causal system, same heartbeat pulse letter
Number RAs for causing can be located at the both sides of pulse.
3. second bilateral filtering.Filtering signal is set to obtain output signal again by same system.PLI will in this step
It is filtered out.Residual error portion only includes RAs and the broadband noise in stopband.
4. RAs is positioned.Involve the technologies such as threshold value using difference, low pass filtered to enter the RAs in step 3. middle residual error portion
Row positioning.
5. RAs is eliminated.RAs is eliminated using certain threshold rule, i.e., screens each heart in step 3. middle residual error portion
The coefficient of the one end (pulse two ends one end is polluted, and the other end is not contaminated) do not polluted by RAs in jump pulse is used as output.It is actual
On, cause the output signal will to be also eliminated in this step in the distortion that starting end lasts about several seconds by the transient effect of system.
Dual bilateral filtering technology implies an important hypothesis：The resistance band parameter of setting makes each two heartbeat arteries and veins
The RAs for rushing signal generation is not overlapped, and the technology cannot tell the RAs of overlap.Actual selected resistance band is inevitable
Meeting cause RAs to overlap.Because civil power power frequency generally has certain drift, the industrial standard of general country be controlled at 1% with
It is interior；But poor civil power environment, drift up to 3%.Double iterative technique can solve this problem.
Iterative technique filtering twice is described below：
1. PLI eliminations are carried out using a first larger resistance band.The first larger resistance band of setting one (ratio
Such as 6.0Hz), target signal filter PLI is disturbed using dual bilateral filtering technology.PLI and relatively strong but hold is contained in residual error portion
Shorter RAs of continuous time.
2. signal reconstruct is carried out using less second resistance band.One less second resistance band of selection
(actual conditions requirement is less than 6.0Hz, generally 2.0Hz or so), using dual bilateral filtering technology to upper step (1.) residual error portion
Divide and processed.Obtain exporting filtering part this step and mainly make use of residual error portion generally lower two than the intensity of primary signal
Two-stage, the RAs included in residual error portion can be ignored.
It is being using the requirement on the larger and less stopband duration and intensity to RAs wide in iterative technique twice
Complementary.As can be seen that it is Non real-time processing to be eliminated while Hz noise and RAs, but it is (such as therein low by designing
Pass filter coefficient is set to simple integral coefficient), it is capable of achieving quasi real time to process.
Include for two kinds of parallel noise reductions eliminations and the myoelectricity and electrode noise interference step of passing through：
Parallel one：Decomposed by Empirical mode decomposition and contain noisy intrinsic mode functions IMF, by the intrinsic mode functions
Comprising signal sequence carry out window segmentation according to default length, the max-thresholds and minimum threshold of window are obtained, according to institute
State max-thresholds and minimum threshold is filtered；
Parallel two：The baseline drift in electrocardiosignal is extracted and filtered, flesh is filtered respectively using wavelet method and trapper
Above-mentioned three kinds filtered signals are added the reference signal as sef-adapting filter by electrical interference and Hz noise, and noisy
Electrocardiosignal carries out adaptive-filtering, generates output signal.
Specifically, in view of the frequency band of electrocardiosignal and noise frequency band have the phenomenon of aliasing, simply combining denoising
Method is that the noise beyond electrocardiosignal frequency range can be filtered totally, and during to the noise denoising of aliasing, will certainly
The characteristic of each waveform is had influence on, so as to cause the distortion of signal.So, also to be fully taken into account when to all kinds of Combination of Methods,
To keep electrocardiogram undistorted as far as possible during denoising.Additionally, before all kinds of Combination of Methods are carried out, every kind of method is again
There is respective difficult point.For example：, it is necessary to consider the On The Choice of wavelet basis during with Wavelet Denoising Method；During with threshold method denoising, it is necessary to
Consider the On The Choice of optimal threshold；, it is necessary to consider On The Choice of structural element etc. during with morphology denoising.So,
When selecting the combination of denoising scheme, respective advantage and disadvantage are taken into full account, be learnt from other's strong points to offset one's weaknesses.
The present invention realizes the purpose of aliasing noise interference removal by the parallel noise reduction of two-way：
Parallel one：Empirical mode decomposition (EMD) is especially suitable for the signal of the non-linear and non-stationary for the treatment of, its maximum it is excellent
Gesture is that the basic function that need not be pre-defined to represent signal, the adaptively selected substrate of direct basis signal self-characteristic
Signal is analyzed, unlike wavelet method, it is necessary to define wavelet function, so as to face the On The Choice of wavelet basis, therefore very
Suitable for processing cardioelectric signals.But due to signal frequency band and the aliasing of noise frequency band, during denoising, letter can be caused
Number distortion, so, the present invention consider and Threshold denoising be combined.But soft, hard -threshold is all by will be greater than threshold value
Value be arranged to given threshold value, and be less than the method for the value zero setting of threshold value and reach the purpose of denoising, so as to increase mistake
The possibility made an uproar, therefore the present invention is using the method for dual threshold.The method decomposites from EMD found in all IMF for coming first
Containing noisy intrinsic mode functions IMF, and then the signal sequence that these IMF are included carries out " window " segmentation, sets " window
Mouthful " length, calculate in " window " it is maximum, minimum be worth to max-thresholds and minimum threshold, that is, obtain the double of each " window "
Threshold value, is filtered.
Parallel two：Mathematical morphology is the mathematical tool being analyzed to image based on morphological structuring element.It
Basic thought is to go to measure and extract the correspondingly-shaped in image with the structural element with certain form to reach to image point
Analysis and the purpose of identification.Electrocardiosignal is the One Dimension Periodic signal constituted with PQRST ripples, so in selecting structure element, choosing
Selecting linear pattern can compare beneficial to analysis and process.But this method is more sensitive to singular point, so as to QRS wave shape can be caused
Distortion, so this patent considers to combine trapper, wavelet method and sef-adapting filter, and sef-adapting filter can be good at
Reflection real-time.The method is using morphologic method to extract baseline drift and filtered first, and next utilizes small echo
Method and trapper filter myoelectricity interference and Hz noise, and then three kinds of signals of filtering are added as sef-adapting filter
Reference signal, adaptive-filtering is carried out with noisy electrocardiosignal, is finally reached the effect of denoising.
In step S203, after ID and the cardioelectric monitor data signal are compressed into coding by controller
Send to Warning Service device；
In step S204, Warning Service device obtains the historical data of user according to ID, by going through for the user
History data and the current cardioelectric monitor data signal for obtaining compare, and the comparative result is sent to warning center.
Used as the implementation method of further optimization of the invention, the controller can also be by the positional information of user, environment
Information and historical diagnostic information are sent to Warning Service device so that Warning Service device can complete more accurate electrocardiogram (ECG) data
Analysis.Such as, the dynamic status data chart of user can be set up according to the data for obtaining, with reference to the diagnostic message of history,
Generation targetedly advises, can send to the mobile terminal bound with the ID etc..
Cardioelectric monitor method of the present invention on the basis of cardioelectric monitor system described in Fig. 1, further to cardioelectric monitor
The filtering process of analog signal has carried out specific introduction, by above-mentioned filtering process, can obtain more structurally sound electrocardio prison
Survey signal.
In addition, as shown in figure 3, the present invention implement just additionally provide a kind of electrocardiograph monitoring device, described device includes：
Collecting unit 301, the cardioelectric monitor analog signal for gathering user by electrocardioelectrode；
Filtering converting unit 302, for being filtered to the cardioelectric monitor analog signal, will by electrocardiogram integrated chip
The cardioelectric monitor analog signal is converted to cardioelectric monitor data signal；
First transmitting element 303, for being pressed ID and the cardioelectric monitor data signal by controller
Sent to Warning Service device after reducing the staff code；
Second transmitting element 304, the historical data for obtaining user according to ID by Warning Service device will be described
The historical data of user and the current cardioelectric monitor data signal for obtaining compare, and the comparative result is sent into early warning
The heart.
This electrocardiograph monitoring device is corresponding with above-mentioned cardioelectric monitor method, is not repeated repeats herein.
In several embodiments provided by the present invention, it should be understood that disclosed apparatus and method, can be by it
Its mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, only
Only a kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can be tied
Another system is closed or is desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or discussed
Coupling each other or direct-coupling or communication connection can be the INDIRECT COUPLINGs or logical of device or unit by some interfaces
Letter connection, can be electrical, mechanical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be according to the actual needs selected to realize the mesh of this embodiment scheme
's.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is to realize in the form of SFU software functional unit and as independent production marketing or use
When, can store in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part for being contributed to prior art in other words or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are used to so that a computer
Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment methods described of the invention
Portion or part.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory),
Random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with store program codes
Medium.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of cardioelectric monitor system, it is characterised in that the system includes electrocardioelectrode, filter circuit, the integrated core of electrocardiogram
Piece, controller, power supply, wireless transmission circuit, Warning Service device, the electrocardioelectrode is arranged on Wearable ECG clothing, described
The cardioelectric monitor analog signal that electrocardioelectrode will be gathered after the filtering process of circuit, is sent to the integrated core of electrocardiogram after filtering
Piece, the electrocardiogram integrated chip sends to controller the cardioelectric monitor data signal after conversion, and the controller will compress
Cardioelectric monitor data signal and ID after coding, send to Warning Service device, pre- police uniform via wireless transmission circuit
Business the historical data of the cardioelectric monitor data signal and the ID is compared after comparative result, and by institute
Comparative result is stated to send to first-aid centre.
2. cardioelectric monitor system according to claim 1, it is characterised in that the electrocardioelectrode is to be arranged on electrocardio clothing
Textile electrode, the textile electrode is connected by filter circuit described in conductive braided wire.
3. cardioelectric monitor system according to claim 1 or claim 2, it is characterised in that the power supply includes battery and voltage conversion
Circuit, the input of the voltage conversion circuit is connected with the battery, the first output end of the voltage conversion circuit and institute
The energization pins for stating electrocardiogram integrated chip are connected, and the voltage of first output end is low with the electrocardiogram integrated chip
Power voltage supply value is matched, and the second output end of the voltage conversion circuit is connected with the controller.
4. cardioelectric monitor system according to claim 1 or claim 2, it is characterised in that the signal of the electrocardiogram integrated chip is defeated
Enter pin to be connected by magnet spring pin insert and socket with the electrocardioelectrode.
5. cardioelectric monitor system according to claim 1 or claim 2, it is characterised in that the wireless transmission circuit is based on bluetooth
4.0 bluetooth communication circuit.
6. cardioelectric monitor system according to claim 1 or claim 2, it is characterised in that the cardioelectric monitor system also includes timing
Circuit, the timing circuit is controlled with the dormancy of the dormancy controlling switch, and/or the controller of the electrocardiogram integrated chip
The dormancy controlling switch of pin, and/or the wireless transmission circuit is connected.
7. a kind of cardioelectric monitor method including cardioelectric monitor system described in claim any one of 1-6, it is characterised in that described
Method includes：
The cardioelectric monitor analog signal of user is gathered by electrocardioelectrode；
The cardioelectric monitor analog signal is filtered, the cardioelectric monitor analog signal is changed by electrocardiogram integrated chip
It is cardioelectric monitor data signal；
Sent to Warning Service device after ID and the cardioelectric monitor data signal are compressed into coding by controller；
Warning Service device obtains the historical data of user according to ID, by the historical data of the user and current acquisition
Cardioelectric monitor data signal compares, and the comparative result is sent to warning center.
8. method according to claim 7, it is characterised in that described that step is filtered to the cardioelectric monitor analog signal
Including following one or two kinds of：
Potential industrial frequency noise and ringing noise are eliminated by dual bilateral filtering technology and twice iterative technique；
Eliminated by two kinds of parallel noise reductions and myoelectricity and electrode noise interference.
9. method according to claim 8, it is characterised in that described by dual bilateral filtering technology and iterative technique twice
Include to eliminate potential industrial frequency noise and ringing noise step：
After the wave filter of end effect signal input first, forward filtering is performed, obtain the first forward filtering signal；
Inverse filtering is performed to the first forward filtering signal, the first inverse filtering signal is obtained；
The first inverse filtering signal iteration is input into first wave filter, the forward filtering is performed, second is being obtained just
To filtering signal；
The inverse filtering is performed to the second forward filtering signal, the first filtering letter not comprising industrial frequency noise is obtained
Number；
Wherein, first wave filter is according to sample rate, trap frequency and the first resistance band, and in original filter
Parameters, are calculated first wave filter.
10. method according to claim 8, it is characterised in that described to pass through two kinds of parallel noise reductions and eliminate and myoelectricity and electrode
Noise jamming step includes：
Parallel one：Decomposed by Empirical mode decomposition and contain noisy intrinsic mode functions IMF, the intrinsic mode functions are included
Signal sequence carry out window segmentation according to default length, obtain the max-thresholds and minimum threshold of window, according to it is described most
Big threshold value and minimum threshold are filtered；
Parallel two：The baseline drift in electrocardiosignal is extracted and filters, filtering myoelectricity respectively using wavelet method and trapper does
Disturb and Hz noise, above-mentioned three kinds filtered signals are added the reference signal as sef-adapting filter, with noisy electrocardio
Signal carries out adaptive-filtering, generates output signal.
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| CN201611255055.2A CN106725433B (en) | 2016-12-30 | 2016-12-30 | A kind of cardioelectric monitor method and system |
| PCT/CN2017/086501 WO2018120636A1 (en) | 2016-12-30 | 2017-05-29 | Electrocardio monitoring method and system |
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| CN108542379A (en) * | 2018-06-01 | 2018-09-18 | 北京卓冉科技有限公司 | Heart early-warning apparatus |
| CN110693490A (en) * | 2019-10-28 | 2020-01-17 | 郑州市中心医院 | Portable wireless electrocardiograph |
| CN110859613A (en) * | 2019-11-20 | 2020-03-06 | 深圳市健云互联科技有限公司 | Electrocardio data processing method and device, computer equipment and storage medium |
| CN111084618A (en) * | 2019-12-13 | 2020-05-01 | 安徽通灵仿生科技有限公司 | Wearable multifunctional respiration cycle detection system and method |
| CN112133251A (en) * | 2020-10-30 | 2020-12-25 | 歌尔科技有限公司 | Wearable device display control method and wearable device |
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| CN114027847B (en) * | 2021-11-17 | 2023-05-05 | 湖南万脉医疗科技有限公司 | Electrocardiosignal analysis method based on time-frequency analysis |
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Also Published As
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| CN106725433B (en) | 2019-01-25 |
| WO2018120636A1 (en) | 2018-07-05 |
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