CN106510696A - Active noise control digital electrode collecting system and collecting method thereof - Google Patents
Active noise control digital electrode collecting system and collecting method thereof Download PDFInfo
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- 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
- A61B5/25—Bioelectric electrodes therefor
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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
- A61B5/25—Bioelectric electrodes therefor
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/291—Bioelectric electrodes therefor specially adapted for particular uses for electroencephalography [EEG]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/296—Bioelectric electrodes therefor specially adapted for particular uses for electromyography [EMG]
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- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- 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
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- 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
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
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- A61B5/7235—Details of waveform analysis
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Abstract
The invention discloses an active noise control digital electrode collecting system and a collecting method thereof. The active noise control digital electrode collecting system comprises a controller and at least one active noise control digital electrode; the controller is connected with the least one active noise control digital electrode and connected with one, two or more active noise control digital electrodes through time sharing option; the active noise control digital electrodes are used for collecting electric signals of human bodies and process and convert the electric signals into digital signals, and the digital signals are output to the controller; physiological electric wave signals are connected in the position closest to the collecting point and converted through a digitization method, so that noise is lowered, the signal-to-noise ratio is decreased, a high-accuracy detection signal is obtained, and the signal measuring accuracy is improved.
Description
Technical field
The present invention relates to the digital electrode technical field of acquiring biological electric signals, more particularly to it is a kind of based on active noise reduction use
In the digital electrode acquisition system and its acquisition method of brain electricity, electrocardio and myoelectricity.
Background technology
Acquiring biological electric signals equipment contacts the skin of people, is generally used for detection in the measurement signal of telecommunication of skin surface various
Physiology sign, for health control etc..The millivolt even bio electricity of microvolt magnitude can be detected, such as can be electric to measure brain
Signal (EEG), electrocardiosignal (ECG) and electromyographic signal (EMG).
Electrocardio is referred to as by the signal of telecommunication of the dirty generation of pulsatile heart, be for assessing heart state, can by its assessment result
To detect some species of heart disease.The signal of telecommunication produced by muscular movement is referred to as myoelectricity, is for detecting that neuromuscular is lived
It is dynamic, muscular dystrophy, peripheral nerve injury or other diseases can be detected by its assessment result.By human thinking activity, god
The activity of Jing units and cause, be scalp EEG signals in the signal of telecommunication that scalp region is produced through skull.General electrode for encephalograms quilt
Scalp region is placed on, for detecting nervous system disease, such as hyperkinetic syndrome, dementia, epilepsy, depression, schizophrenia, audition god
Jing pathological changes etc..
Under normal circumstances, as the signal amplitude of EEG signals (EEG) is less than tens times of electrocardiosignal or electromyographic signal
To hundreds of times, so in hardware point of view, EEG signals (EEG) are compared the other biological signal of telecommunication and are most difficult to collection.It is modal
Brain wave acquisition method is placed on scalp with the medicated cap for having many Ag/AgCl wet electrodes.When impedance is less than 10k, each electrode
Regional brain electricity is gathered respectively.In order to reduce impedance, technical staff would generally remove scalp horny layer or use Signa Gel
For gathering.Typical brain electricity cap is connecting medicated cap and acquisition system with 1 meter or so wire.Only ambient electromagnetic field noise
Signal has been just 20 times of EEG signals or so.And, engineer needs very poor from signal to noise ratio in certain frequency range
Signal in extract the signal (typically 0.05 arrive 40Hz) of very little.Then engineer must be at high-gain (5000-20000 times)
And higher order filter filtering, to guarantee that the signal record of brain electricity gets off to be analyzed.
Generally, these signals of telecommunication are measured by multiple electrodes.One of electrode is reference electrode, another measurement electricity
What pole measured is the electric potential difference of relative reference electrode.Between relative electrode, voltage differential signal is very little, in microvolt magnitude.In order to
Overcome background noise, detect faint physiological signal, needs are amplified and filter.Generally it is connected to using long wire
Amplifier is completing to amplify, filter and gather, but this in turn introduces much noise.Signal condition setting generally depends on tested
Bio-electro-physiologic signal, this function are typically provided by acquisition system.In order to store signal in embedded systems, and perform
Digital signal processing algorithm, such as fast Fourier transform carry out spectrum analyses etc., and the physiology analogue signal of collection generally goes through puts
Number format can be converted to after big device.
In sum, for the application of bio electricity sensing measurement, transmission of the primary signal between electrode to acquisition system
Long wire is either introduced in noise, in hardware filtering and system software program, measure the data accuracy for obtaining and exist very
Many problems.First, wire can analogy antenna receiver receive environment wireless signal, have received huge spuious background noise.Letter
Background noise is limited number by the wave filter of acquisition system, but during this, what wave filter was same covers or change certain
EEG signals；Secondly as there is certain loss of signal on impedance line, long call wire causes detected signal accurate
Property is excessively poor.
Because the interference that the measurement of the faint signal of telecommunication is subject to is very big, these problems have had a strong impact on sending out for bio-sensing at present
Exhibition.Therefore, urgently there is a kind of noise reduction electrode of suitable Clinical practice, reaching improves signal to noise ratio and obtain the high detection of accuracy
The purpose of signal.
The content of the invention
In order to overcome the above-mentioned deficiency of prior art, the invention provides a kind of digital electrode acquisition system of active noise reduction
And its acquisition method, signal is amplified, is filtered and analog digital conversion being close to collection point by active noise reduction electrode, it is final defeated
Go out the digital signal of less noise.
To realize object above, the invention provides following technical scheme：
The digital electrode acquisition system of a kind of active noise reduction, it is characterised in that including controller and at least one active drop
Make an uproar digital electrode：
The controller connects at least one active noise reduction digital electrode and timesharing selects to connect an active noise reduction
Digital electrode or two or more active noise reduction digital electrode；
The active noise reduction digital electrode is used for the signal of telecommunication for gathering body, and the Electric signal processing is converted to numeral
Signal, then the digital signal is exported to the controller.
2. the digital electrode acquisition system of active noise reduction according to claim 1, it is characterised in that the signal of telecommunication
Including one or more in EEG signals, electrocardiosignal, electromyographic signal.
Preferably, controller connection electrode data selector, the electrode data selector connection described at least one have
Source noise reduction digital electrode, controller select to connect different active noise reduction digital electrodes by coordination electrode data selector.
Preferably, active noise reduction digital electrode includes working electrode, signal extraction unit, analog-digital converter and power supply list
Unit, wherein：
The working electrode is included for gathering the acquisition electrode for measuring the signal of telecommunication of body and providing the standard signal of telecommunication
Reference electrode；
The signal extraction unit connects the working electrode and extracts the measurement signal of telecommunication and be amplified and filter, institute
State signal extraction unit and connect the analog-digital converter；
The analog-digital converter is for being converted to digital signal by the signal of telecommunication of the signal extraction unit；
It is that the signal extraction unit and analog-digital converter provide voltage that the power subsystem is used for.
Preferably, signal extraction unit includes that the instrumentation amplifier being sequentially connected, active low-pass filter, active high pass are filtered
Ripple device and variable gain amplifier；The outfan of the working electrode connects the instrumentation amplifier, and the variable gain is amplified
Device connects digital regulation resistance, and the digital regulation resistance provides variable gain for the variable gain amplifier.The power subsystem
There is provided stable including the analog voltage a reference source that burning voltage is provided for the signal extraction unit and for the analog-digital converter
The digital voltage a reference source of voltage.
Preferably, the outfan connection fiducial reference source of analog voltage a reference source, an output of the fiducial reference source
The outfan of the end connection acquisition electrode, another outfan of the fiducial reference source connect the output of the reference electrode
The outfan of end, the acquisition electrode and reference electrode connects the input of instrumentation amplifier；
The fiducial reference source is used to provide reference voltage, including an operational amplifier and buffering for the instrumentation amplifier
Device.
Preferably, working electrode includes fiber conductive fabric or electrodeposited coating made by conductive material, the conductive material is silver,
Silver chloride and/or gold, conducting polymer.
Preferably, the outfan of at least one active noise reduction digital electrode is by radical word signal output wire connection control
Device processed, the controller include wireless radio frequency modules, and the wireless radio frequency modules are for carrying out radio communication with external equipment.
Preferably, controller includes clock control module, and the clock control module connects the electrode data selector
With whole active noise reduction digital electrodes, the clock control module is for high-speed synchronous control data.
Present invention also offers a kind of digital electrode acquisition method of active noise reduction, specifically includes following steps：
S1：Timesharing is controlled by controller and connects at least one active noise reduction digital electrode；
S2：Active noise reduction digital electrode gathers the signal of telecommunication of body；Active noise reduction digital electrode is gathered by working electrode
The acquisition electrode of the measurement signal of telecommunication of body, obtains the standard signal of telecommunication of body by reference to electrode；
Active noise reduction digital electrode is gone forward side by side by connecting the signal extraction unit extraction measurement signal of telecommunication of working electrode
Row amplifies and filters；
The signal of telecommunication of signal extraction unit is converted to into digital signal finally by analog-digital converter.；
S3：The Electric signal processing is converted to digital signal by active noise reduction digital electrode, then will be the digital signal defeated
Go out to the controller.
Compared with prior art, the digital electrode acquisition system and its acquisition method of the active noise reduction that the present invention is provided, tool
There is following beneficial effect：
The digital electrode acquisition system and its acquisition method of the active noise reduction that the present invention is provided, by amplifying signal, filtering
Ripple and analog-digital conversion function are integrated into and are close in each active noise reduction digital electrode of collection contact point, closest to collection point
Where collection and with digitizing solution change collection physiology electric wave signal, so as to reduce noise, improve signal to noise ratio simultaneously
The higher detection signal of accuracy is obtained, measurement signal accuracy is improve, it is ensured that final process and analysis result are just
True reliability.In physiology electric wave record, signal to noise ratio is enhanced.
Description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, other of the invention
Feature, objects and advantages will become more apparent upon：
Fig. 1 is the structural representation of the digital electrode acquisition system of the active noise reduction of the embodiment of the present invention；
Fig. 2 is that the structure of the active noise reduction digital electrode of the digital electrode acquisition system of embodiment of the present invention active noise reduction is shown
It is intended to.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than the embodiment of whole.Present invention enforcement generally described and illustrated in accompanying drawing herein
The component of example can be arranged and be designed with a variety of configurations.Therefore, the reality of the present invention below to providing in the accompanying drawings
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected enforcement of the present invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets
Put ", " installation ", should be interpreted broadly " being connected ", " connection ", for example, it may be fixedly connected, or be detachably connected,
Or be integrally connected；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to by intermediary
It is indirectly connected to, can is the connection of two element internals.For the ordinary skill in the art, can be according to concrete feelings
Condition understands concrete meaning of the above-mentioned term in this utility model.
In addition, the technical scheme between each embodiment of the invention can be combined with each other, but must be general with this area
Logical technical staff can be implemented as basis, will be understood that when the combination appearance of technical scheme is conflicting or cannot realize this
The combination of technical scheme is not present, also not within the protection domain of application claims.
This utility model is further described with exemplary embodiment below in conjunction with the accompanying drawings, wherein if it is known that technology
Detailed description for illustrate it is of the present utility model be characterized in that unnecessary, then omitted.
For the huge spuious background noise that occurs during solving current bio electricity sensing measurement and the loss of signal, this
Inventive embodiments obtain signal amplification, filtering and analog digital conversion by improving existing signal acquiring system, and make this mistake
Journey is as far as possible near collection contact point.Signal is amplified, filtering and analog-digital conversion function are integrated into and are close to collection contact point
In each active noise reduction digital electrode,
Collection the physiology electric wave signal with digitizing solution transformation collection where closest to collection point, so as to reduce
Noise, improves signal to noise ratio and obtains the higher detection signal of accuracy, improve measurement signal accuracy, it is ensured that final
Process and analysis result correct reliability.In physiology electric wave record, signal to noise ratio is enhanced.
Specifically, the digital electrode acquisition system for embodiments providing a kind of active noise reduction includes 20 He of controller
At least one active noise reduction digital electrode 10.Wherein：
At least one active noise reduction digital electrode 10 of the connection of controller 20 timesharing selection one active noise reduction numeral of connection
Electrode 10 or two or more active noise reduction digital electrode 10；
Active noise reduction digital electrode 10 is used for the signal of telecommunication for gathering body, and Electric signal processing is converted to digital signal,
Finally digital signal is exported to controller 20.Each active noise reduction digital electrode 10 gathers a band of position.
The signal of telecommunication of the body includes EEG signals, electrocardiosignal and/or electromyographic signal.
Another kind of preferred embodiment, Fig. 1 are the knots of the digital electrode acquisition system of the active noise reduction of the embodiment of the present invention
Structure schematic diagram, as shown in figure 1,20 connection electrode data selector 30 of controller, the connection of electrode data selector 30 at least one
Active noise reduction digital electrode 10, controller 20 connect active noise reduction digital electrode 10 by coordination electrode data selector 30.
Active noise reduction digital electrode 10 is selected by electrode data selector 30, by its digitized signal input to control
In device 20, collection the physiology electric wave signal with digitizing solution transformation collection where closest to collection point, so as to reduce
Noise, improves signal to noise ratio.In physiology electric wave record, signal to noise ratio is enhanced.
Fig. 2 is that the structure of the active noise reduction digital electrode of the digital electrode acquisition system of embodiment of the present invention active noise reduction is shown
It is intended to.Active noise reduction digital electrode 10 is an electrode comprising high-resolution modulus (A/D) transducer, each active noise reduction
Digital electrode 10 includes an independent high-resolution analog-digital converter 19.As shown in Fig. 2 active noise reduction digital electrode 10 is wrapped
Include working electrode, signal extraction unit, analog-digital converter 19 and power subsystem.Wherein：
Working electrode is included for gathering the acquisition electrode 11 for measuring the signal of telecommunication of body and providing the standard signal of telecommunication
Reference electrode 12；
Signal extraction unit connection working electrode extracts the measurement signal of telecommunication and is amplified and filters, and signal extraction unit connects
Connect analog-digital converter 19；
Analog-digital converter 19 is for being converted to digital signal by the signal of telecommunication of signal extraction unit；
Power subsystem is used to be that signal extraction unit and analog-digital converter 19 provide voltage.
As shown in Fig. 2 signal extraction unit include being sequentially connected high input impedance instrumentation amplifier 13, active low pass
Wave filter 15, active high-pass filter 16 and variable gain amplifier 17；The outfan of working electrode connects the input impedance
Instrumentation amplifier 13.
Power subsystem includes providing the analog voltage a reference source 20 of burning voltage and for analog digital conversion for signal extraction unit
Device 19 provides the digital voltage a reference source 21 of burning voltage.Specifically, as shown in Fig. 2 joining on the basis of analog voltage a reference source 20
Source 14, active low-pass filter 15, active high-pass filter 16, the offer low noise power supply guarantor of variable voltage gain amplifier 17 are provided
Barrier；Digital voltage a reference source 21 is that analog-digital converter 19 and digital regulation resistance 18 provide power supply guarantee.
Wherein, the outfan connection fiducial reference source 14 of analog voltage a reference source 20, an output of fiducial reference source 14
The outfan of end connection acquisition electrode 11, another outfan of fiducial reference source 14 connect the outfan of reference electrode 12, collection
The input of the outfan connection input impedance instrumentation amplifier 13 of electrode 11 and reference electrode 12；
Input impedance instrumentation amplifier 13 carries out differential amplification, acquisition electrode 11 and reference electrode for will measure the signal of telecommunication
12 difference current potential is exaggerated using high input impedance instrumentation amplifier 13, and input impedance instrumentation amplifier 13 is using fixed increasing
Benefit output, fiducial reference source 14 are provided as the reference voltage.Fiducial reference source 14 is made up of an operational amplifier, while adopting
One buffer is providing low impedance reference.
Active low-pass filter 15 is used for the filtering and frequency-selecting for measuring the signal of telecommunication；Active high-pass filter 16 is used to eliminate electricity
Pole compensates current potential and electrode potential drift；
Variable gain amplifier for the signal that active high-pass filter 16 is processed is amplified, variable gain amplifier
17 connection digital regulation resistances 18, in practical application, digital regulation resistance 18 is that variable gain amplifier 17 provides variable gain.
Preferably, the working electrode of active noise reduction digital electrode 10 includes fiber conductive fabric or plating made by conductive material
Layer, conductive material are silver, silver chloride and/or gold or polymer conducting material.
What the acquisition electrode 11 of working electrode was measured is the electric potential difference of relative reference electrode 12, in actual applications, generally
Conducted using wet electrode, such as surface is using being conducted using saline or Signa Gel；It is but special, in our application systems
In, more preferably using new material electrode, the compatible many material dry and wet electrodes of system.
Referring to Fig. 2, each active noise reduction digital electrode 10 enables work on the serial control bus 22 of controller 20,
Electrode is selected to be enabled using 22 output control signal control data transducer of serial control bus 23.
Controller 20 also includes clock control module, and clock control module connection electrode data selector 30 is active with whole
Noise reduction digital electrode 10 exports clock signal.Clock signal transmission line 25 connection electrode of the clock control module by controller 20
Data selector 30 and whole active noise reduction digital electrodes 10, control all data for high-speed synchronous.
The outfan of active noise reduction digital electrode 10 connects controller 20 by a radical word signal output wire 24
Digital signal output interface, and then by digital data transmission to controller 20.All of active noise reduction digital electrode 10 is using same
One digital signal output lead 24, selects electrode output to reduce number of conductors by timesharing, reduces interference.
Conduit 27 is enclosed with the outside of communication line, the communication line in conduit 27 can be the signal of telecommunication of two-way communication
Or fiber-optic signal.
Another kind of embodiment, on the basis of above technical scheme, controller 20 also includes wireless radio frequency modules, less radio-frequency
Module facilitates the display of collection result and the use of user for the radio communication of data is carried out with external equipment.
Present invention also offers a kind of digital electrode acquisition method of active noise reduction, specifically includes following steps：
S1：Timesharing is controlled by controller and connects at least one active noise reduction digital electrode；
S2：Active noise reduction digital electrode gathers the signal of telecommunication of body；
S3：The Electric signal processing is converted to digital signal by active noise reduction digital electrode, then will be the digital signal defeated
Go out to the controller.
Wherein, also include in step S2：Active noise reduction digital electrode gathers the measurement electricity of body by working electrode
The acquisition electrode of signal, obtains the standard signal of telecommunication of body by reference to electrode；
Active noise reduction digital electrode is gone forward side by side by connecting the signal extraction unit extraction measurement signal of telecommunication of working electrode
Row amplifies and filters；
The signal of telecommunication of signal extraction unit is converted to into digital signal finally by analog-digital converter.
These are only present pre-ferred embodiments, be not used to limitation the present invention, it is all the spirit and principles in the present invention it
Interior done modification, equivalent and improvement etc., are required to be included within protection scope of the present invention.
Claims (10)
1. the digital electrode acquisition system of a kind of active noise reduction, it is characterised in that including controller and at least one active noise reduction
Digital electrode：
The controller connects at least one active noise reduction digital electrode and timesharing selects to connect an active noise reduction numeral
Electrode or two or more active noise reduction digital electrode；
The active noise reduction digital electrode is used for the signal of telecommunication for gathering body, and the Electric signal processing is converted to digital letter
Number, then the digital signal is exported to the controller.
2. the digital electrode acquisition system of active noise reduction according to claim 1, it is characterised in that the signal of telecommunication includes
One or more in EEG signals, electrocardiosignal, electromyographic signal.
3. the digital electrode acquisition system of active noise reduction according to claim 1, it is characterised in that the controller connection
Electrode data selector, the electrode data selector connect at least one active noise reduction digital electrode, and controller passes through
Coordination electrode data selector selects to connect different active noise reduction digital electrodes.
4. the digital electrode acquisition system of active noise reduction according to claim 1, it is characterised in that the active noise reduction number
Word electrode includes working electrode, signal extraction unit, analog-digital converter and power subsystem, wherein：
The working electrode is included for gathering the acquisition electrode for measuring the signal of telecommunication of body and providing the ginseng of the standard signal of telecommunication
Examine electrode；
The signal extraction unit connects the working electrode and extracts the measurement signal of telecommunication and be amplified and filter, the letter
Number extraction unit connects the analog-digital converter；
The analog-digital converter is for being converted to digital signal by the signal of telecommunication of the signal extraction unit；
It is that the signal extraction unit and analog-digital converter provide voltage that the power subsystem is used for.
5. the digital electrode acquisition system of active noise reduction according to claim 4, it is characterised in that the signal extraction list
Unit includes instrumentation amplifier, active low-pass filter, active high-pass filter and the variable gain amplifier being sequentially connected；It is described
The outfan of working electrode connects the instrumentation amplifier, and the variable gain amplifier connects digital regulation resistance, the numeral
Potentiometer provides variable gain for the variable gain amplifier；The power subsystem includes providing for the signal extraction unit
The analog voltage a reference source of burning voltage and the digital voltage a reference source of burning voltage is provided for the analog-digital converter.
6. the digital electrode acquisition system of active noise reduction according to claim 5, it is characterised in that the analog voltage base
The one outfan connection fiducial reference source in quasi- source, an outfan of the fiducial reference source connect the output of the acquisition electrode
End, another outfan of the fiducial reference source connect the outfan of the reference electrode, the acquisition electrode and reference electrode
Outfan connect instrumentation amplifier input；
The fiducial reference source is used to provide reference voltage, including an operational amplifier and buffer for the instrumentation amplifier.
7. the digital electrode acquisition system of active noise reduction according to claim 4, it is characterised in that the working electrode bag
Fiber conductive fabric or electrodeposited coating made by conductive material are included, the conductive material is silver, silver chloride and/or gold, conducting polymer.
8. the digital electrode acquisition system of active noise reduction according to claim 1, it is characterised in that described at least one has
The outfan of source noise reduction digital electrode includes wirelessly penetrating by a radical word signal output wire connection controller, the controller
Frequency module, the wireless radio frequency modules are for carrying out radio communication with external equipment.
9. the digital electrode acquisition system of active noise reduction according to claim 1, it is characterised in that the controller includes
Clock control module, the clock control module connect the electrode data selector and whole active noise reduction digital electrodes, institute
Clock control module is stated for high-speed synchronous control data.
10. the digital electrode acquisition method of a kind of active noise reduction, it is characterised in that specifically include following steps：
S1：Timesharing is controlled by controller and connects at least one active noise reduction digital electrode；
S2：Active noise reduction digital electrode gathers the signal of telecommunication of body；Active noise reduction digital electrode gathers body by working electrode
Measurement the signal of telecommunication acquisition electrode, by reference to electrode obtain body the standard signal of telecommunication；
Active noise reduction digital electrode is extracted the measurement signal of telecommunication and is put by connecting the signal extraction unit of working electrode
Big and filtering；
The signal of telecommunication of signal extraction unit is converted to into digital signal finally by analog-digital converter；
S3：The Electric signal processing is converted to digital signal by active noise reduction digital electrode, then by the digital signal export to
The controller.
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Cited By (5)
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|---|---|---|---|---|
| CN107212880A (en) * | 2017-06-29 | 2017-09-29 | 清华大学 | The implanted dynamic electrocardioscanner of dynamic adjustment electrode configuration |
| CN107898456A (en) * | 2017-11-13 | 2018-04-13 | 深圳贝特莱电子科技股份有限公司 | A kind of brain wave acquisition device and method based on active electrode |
| CN108852341A (en) * | 2018-06-22 | 2018-11-23 | 山东师范大学 | A kind of digital radio Electrophysiology signal detection single-chip, system and method |
| CN109058176A (en) * | 2018-08-01 | 2018-12-21 | 济南浪潮高新科技投资发展有限公司 | A kind of radiator fan with active noise reduction function |
| CN113598780A (en) * | 2020-05-04 | 2021-11-05 | 广达电脑股份有限公司 | Electrocardiogram detection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352336A (en) * | 2008-08-01 | 2009-01-28 | 重庆大学 | Long time dynamic cardiac electric recording apparatus an with sport information acquisition |
| CN201564474U (en) * | 2009-12-30 | 2010-09-01 | 河南华南医电科技有限公司 | Active digital ECG cable |
| CN102429656A (en) * | 2011-10-21 | 2012-05-02 | 上海理工大学 | Ultra-small ventricular fibrillation detector |
| CN103025233A (en) * | 2010-07-23 | 2013-04-03 | 优美德思有限公司 | Attachable and detachable biological signal measuring pad and biological signal measuring apparatus using the same |
| CN104287728A (en) * | 2014-10-30 | 2015-01-21 | 北京联合大学 | Active surface myoelectricity detection probe adopting optical fiber transmission |
-
2016
- 2016-12-22 CN CN201611198634.8A patent/CN106510696A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352336A (en) * | 2008-08-01 | 2009-01-28 | 重庆大学 | Long time dynamic cardiac electric recording apparatus an with sport information acquisition |
| CN201564474U (en) * | 2009-12-30 | 2010-09-01 | 河南华南医电科技有限公司 | Active digital ECG cable |
| CN103025233A (en) * | 2010-07-23 | 2013-04-03 | 优美德思有限公司 | Attachable and detachable biological signal measuring pad and biological signal measuring apparatus using the same |
| CN102429656A (en) * | 2011-10-21 | 2012-05-02 | 上海理工大学 | Ultra-small ventricular fibrillation detector |
| CN104287728A (en) * | 2014-10-30 | 2015-01-21 | 北京联合大学 | Active surface myoelectricity detection probe adopting optical fiber transmission |
Cited By (7)
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|---|---|---|---|---|
| CN107212880A (en) * | 2017-06-29 | 2017-09-29 | 清华大学 | The implanted dynamic electrocardioscanner of dynamic adjustment electrode configuration |
| CN107212880B (en) * | 2017-06-29 | 2020-02-21 | 清华大学 | Implanted dynamic electrocardiogram monitor capable of dynamically adjusting electrode configuration |
| CN107898456A (en) * | 2017-11-13 | 2018-04-13 | 深圳贝特莱电子科技股份有限公司 | A kind of brain wave acquisition device and method based on active electrode |
| CN108852341A (en) * | 2018-06-22 | 2018-11-23 | 山东师范大学 | A kind of digital radio Electrophysiology signal detection single-chip, system and method |
| CN108852341B (en) * | 2018-06-22 | 2021-10-01 | 山东师范大学 | Digital wireless neuroelectrophysiological signal detection single chip, system and method |
| CN109058176A (en) * | 2018-08-01 | 2018-12-21 | 济南浪潮高新科技投资发展有限公司 | A kind of radiator fan with active noise reduction function |
| CN113598780A (en) * | 2020-05-04 | 2021-11-05 | 广达电脑股份有限公司 | Electrocardiogram detection device |
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