CN106597357A - Calibrating device of defibrillation energy analyzer - Google Patents
Calibrating device of defibrillation energy analyzer Download PDFInfo
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- CN106597357A CN106597357A CN201611116660.1A CN201611116660A CN106597357A CN 106597357 A CN106597357 A CN 106597357A CN 201611116660 A CN201611116660 A CN 201611116660A CN 106597357 A CN106597357 A CN 106597357A
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- 238000012360 testing method Methods 0.000 claims abstract description 53
- 238000000034 method Methods 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 18
- 238000007689 inspection Methods 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 14
- 230000010354 integration Effects 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
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- 230000000737 periodic effect Effects 0.000 claims description 4
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- 238000001514 detection method Methods 0.000 abstract description 4
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- 238000005516 engineering process Methods 0.000 description 4
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
- A61N1/39—Heart defibrillators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
Abstract
Disclosed is a calibrating device of a defibrillation energy analyzer. The calibrating comprises a control module, a charging module, a power supply module, a capacitive module, a discharging module, an energy test module, a self-detection and self-calibration module, a protection module and a display module; the charging module, the discharging module, the energy test module, the self-detection and self-calibration module and the display module are connected with the control module; the power supply module and the capacitive module are connected with the charging module; and the protection module is connected with the capacitive module. The calibrating device of the defibrillation energy analyzer has the advantages of higher accuracy and reliability of metering calibration.
Description
Technical field
The present invention relates to armarium field of measuring techniques, more particularly, to a kind of defibrillation energy analyser calibration cartridge
Put.
Background technology and
Cardiac defibrillator, also known as electrical conversion machine, is one of current clinically widely used crash equipment.Defibrillation energy is sent out
Raw device can be used to produce single, double phase waveform, and most defibrillator energy all can be regulation, typically (burnt from 2J～360J
Ear).Defibrillator release energy should terminate the minimum energy that room is quivered, if release energy it is too low if cannot terminate the heart
Rule is not normal, and energy is too high, can cause electrode paste that the damage of myocardial cell is resulted even in edema by burning for area skin.
Therefore the accuracy that defibrillator releases energy is to weigh one of whether qualified important indicator of defibrillator.
At present the standard utensil of control defibrillator quality is that defibrillator analyser major part all relies on US and European and enters
Mouthful, due to the particularity of pulse energy test, the also no corresponding source tracing method of metrological services at different levels.It is domestic there was only entire PLA's medical science
The factory calibration method that measurement and calibration laboratory can be provided according to producer, that is, opening casing is carried out according to equipment circuit schematic diagram
Sub-unit is calibrated.On the one hand the method needs to open casing, requires still there is gap with conventional measurement and calibration, on the other hand also because
The difference of different manufacturers different model circuit theory diagrams so that the calibration of the kind equipment is difficult to form a unified standard.Cause
This, in armarium Registration Test and measurement and calibration, the defibrillator analyser of different manufacturers is to same defibrillator measurement result
Inconsistent situation happens occasionally, so as to constrain the accuracy and reliability of armarium Registration Test and measurement and calibration.
It is according to the storage energy and the principle to human body simulation impedance discharging of defibrillation energy analyser, existing except running pulse
The measurement for rushing energy mainly has two methods：(1) capacitance-voltage method, it is relatively steady that the method generally requires hypothesis storage capacitor performance
It is fixed, and the voltage coefficient of capacitance is zero, i.e. storage capacitor both end voltage capacitance when discharge and recharge changes keeps constant, but
It is that capacitance can all cause a certain degree of change with the change of temperature and both end voltage in actual applications, and electric capacity is discharged
The accuracy requirement of rear and front end instantaneous voltage measurement is very high, and measurement error is larger, therefore, the method is typically only used as defibrillation energy
Amount source releases energy the control of blanking voltage；(2) voltage resistance integration method, the method are widely used, and are current each main flow defibrillations
The energy method computations adopted by device analyser, the method using one this assumes that human body simulation impedance be noninductive pure electricity
Resistance, but on human body simulation resistance, need that the energy for bearing is higher, the power of needs is larger, will necessarily there is a certain amount of distribution electricity
Sense and electric capacity, so being not suitable for the energy of accurate measurement defibrillation pulse.
Therefore, it is necessary to the higher defibrillation energy analyser calibration cartridge of the accuracy and reliability of developing a kind of measurement and calibration
Put.
The information for being disclosed in background of invention part is merely intended to deepen the reason of the general background technology to the present invention
Solution, and it is not construed as recognizing or imply in any form known to those skilled in the art existing of the information structure
Technology.
The content of the invention
The present invention proposes a kind of defibrillation energy analyser calibrating installation, can accurately measure defibrillation pulse energy, for energy
Amount calculates the high calculating of required precision.
A kind of defibrillation energy analyser calibrating installation is proposed according to the present invention includes：
Control module；
Charging module, the charging module are connected to the control module；
Power module, the power module are connected with the charging module, for providing power supply energy to the charging module
Amount；
Capacitance module, the capacitance module are connected with the charging module；
Wherein, the charging module is for being stored into the capacitance module by the power supply energy of the power module；
Discharge module, the discharge module are connected to the control module, described in the capacitance module is stored
Power supply energy is discharged according to waveform；
Energy test module, the energy test module are connected with the control module, for gathering the discharge module
The voltage signal and current signal of release, and calculate the standard value for actually releasing energy；
Self-test and self-calibration quasi-mode block, the self-test and self-calibration quasi-mode block are connected with the control module, for checking the power supply
Whether module is normal, and the rechargeable energy deviation that capacitor's capacity change causes in periodic measurement and the compensation charging module；
Protection module, the protection module are connected with the capacitance module, for protecting the power module in normal model
Interior work is enclosed, and capacitive energy is discharged automatically by internal circuit in the capacitance module charging complete to Preset Time；
Display module, the display module are connected with the control module, for showing present discharge waveform, charged state
And the standard value that actually releases energy and pulse voltage current value；
Wherein, the control module is used to realizing the starting up of described device, and controls the charging module, described puts
The function of electric module, the self-test and self-calibration quasi-mode block, the energy test module and the display module.
Preferably, the capacitance module includes：
Diode, the positive pole of the diode are connected to the charging module；
Electric capacity, one end of the electric capacity are connected with the negative pole of the diode, and the other end is connected to the charging module；
First relay, one end of first relay are connected to the negative pole of the control module and the diode；
Second relay, second relay are connected with the other end of the control module and the electric capacity respectively.
Preferably, the energy test module includes：
Potentiometer, one end of the potentiometer are connected to first relay, and the other end is single by the voltage number of accepting and believing collection
Unit is connected to the control module；
Inspection leakage resistance, described inspection leakage resistance one end are connected to second relay, and the other end is gathered by current signal
Unit is connected to the control module；
Outer meeting resistance, described outer meeting resistance one end are connected to first relay, the other end and the inspection leakage resistance phase
Even.
Preferably, the discharge module includes：Unidirected discharge module and two-way discharge module.
Preferably, the unidirected discharge module includes：
Current sensor, the current sensor are connected with the current signal collecting unit；
First load, one end of first load are connected with first relay, and the other end is passed by the electric current
Sensor is connected to second relay.
Preferably, the two-way discharge module includes：
H-bridge drive circuit, the H-bridge drive circuit are connected with first relay and second relay respectively；
Switch drive unit, described switch drive unit one end are connected to the control module, and the other end is driven with the H bridges
Galvanic electricity road is connected.
Preferably, the H-bridge drive circuit includes：
Second load；
Switch module, including first switch component, second switch component, the 3rd switch module and the 4th switch module, its
Described in first switch component and the 3rd switch module it is in parallel, the second switch component and the 4th switch module are simultaneously
Connection, the first switch component and the 3rd switch module and the second switch component after parallel connection and the 4th switch after parallel connection
Component passes through second load in series.
Preferably, the first switch component is that switch one and switch two are connected, and the second switch component is switch three
Connect with switch four, the 3rd switch module is that switch five and switch six are connected, and the 4th switch module is seven Hes of switch
Switch eight is connected, and the switch one is high voltage gate dielectric bipolar transistor to the switch eight.
Preferably, the energy test module calculates the standard value of the energy using voltage x current integration method, in energy
The voltage signal and current signal are gathered while release, according to voltage x current calculate instantaneous time t in power, pair when
Between t ask the integration formula of power to be：
E=∫ UIdt
Wherein,
E, instantaneous power；U, voltage；I, electric current.
Preferably, the quasi- mode of self-test and self-calibration of the self-test and self-calibration quasi-mode block is：
τ=R*C
Wherein, τ, the charge constant calculated by control module；
R, extraneous resistance；
C, can obtain the capacitance of storage capacitor.
A kind of defibrillation energy analyser calibrating installation of the invention, has an advantage in that：The energy test mould of the present invention
Block employs voltage x current integration method, and it is while collection voltages and current signal, according to voltage exergonic to calculate energy
Current calculation instantaneous power, calculates to obtain energy value by the integration of power is sought to the time；
Voltage x current integration method can not receive human body simulation load resistance size and distributed inductance capacitive effect, accurately can measure
Defibrillation pulse energy, it is adaptable to the high calculating of energy balane required precision；
The defibrillation energy analyser calibrating installation of the present invention ensure that the accuracy that defibrillator releases energy, tractability
And comparability.
The device of the present invention has other characteristics and advantage, these characteristics and advantage from the accompanying drawing being incorporated herein and with
Will be apparent in specific embodiment afterwards, or will enter in the accompanying drawing being incorporated herein and subsequent specific embodiment
Row states that these the drawings and specific embodiments are provided commonly for the certain principles for explaining the present invention in detail.
Description of the drawings
Exemplary embodiment of the present is described in more detail by combining accompanying drawing, the present invention it is above-mentioned and other
Purpose, feature and advantage will be apparent from, wherein, in exemplary embodiments of the present invention, identical reference number is usual
Represent same parts.
Fig. 1 shows structural representation according to an illustrative embodiment of the invention.
Fig. 2 shows that the structure of the capacitance module and energy test module of an exemplary embodiment of the invention is shown
It is intended to.
Fig. 3 shows the structural representation of the unidirected discharge module of an exemplary embodiment of the invention.
Fig. 4 shows the structural representation of the two-way discharge module of an exemplary embodiment of the invention.
Description of reference numerals：
1st, control module；2nd, charging module；3rd, capacitance module；4th, discharge module；5th, energy test module；6th, self-test and self-calibration
Quasi-mode block；7th, protection module；8th, display module；9th, power module；31st, diode；32nd, electric capacity；33rd, the first relay；34th,
Two relays；41st, current sensor；42nd, the first load；43rd, switch drive unit；44th, the second load；46th, H bridges drive electricity
Road；51st, potentiometer；52nd, examine leakage resistance；53rd, outer meeting resistance；54th, voltage signal acquisition unit；55th, current signal collecting unit.
Specific embodiment
The present invention is more fully described below with reference to accompanying drawings.Although the preferred embodiments of the present invention are shown in accompanying drawing,
However, it is to be appreciated that may be realized in various forms the present invention and should not be limited by embodiments set forth here.On the contrary, there is provided
These embodiments are in order that the present invention is more thorough and complete, and can will fully convey the scope of the invention to ability
The technical staff in domain.
Valuable defibrillation energy analyser calibrating installation is provided according to the present invention, including：Control module；Charging module, charges
Module is connected to control module；Power module, power module are connected with charging module, for providing power supply energy to charging module
Amount；Capacitance module, capacitance module are connected with charging module；Wherein, charging module is stored for the power supply energy by power module
To capacitance module；Discharge module, discharge module are connected to control module, for the power supply energy that stores capacitance module according to ripple
Shape is discharged；Energy test module, energy test module are connected with control module, for gathering the voltage of discharge module release
Signal and current signal, and calculate the standard value for actually releasing energy；Self-test and self-calibration quasi-mode block, self-test and self-calibration quasi-mode block and control
Module is connected, and for checking that power module is whether normal, and capacitance variation causes in periodic measurement and compensating charge module
Rechargeable energy deviation；Protection module, protection module are connected with capacitance module, for protecting power module work within the normal range
Make, and capacitive energy is discharged automatically by internal circuit after capacitance module charging complete to Preset Time；Display module, shows
Module is connected with control module, for showing present discharge waveform, charged state and the standard value for actually releasing energy and arteries and veins
Rush voltage x current value；Wherein, control module is used for the starting up for realizing device, and controls charging module, discharge module, self-inspection
The function of self calibration module, energy test module and display module.
After device start, charging module is stored into power supply energy on capacitance module, and after charging, discharge module is according to control
Require for the energy that capacitance module is stored to carry out discharge process according to the form of unidirectional ripple or two-way ripple.
User select rechargeable energy and after triggering on and off switch by the master board of control module controlling charging mould
The charging panel of block charges to energy-storing capacitor module；Charging terminate after in Preset Time (such as 1 minute) if discharge module
Triggering, then master board send collection signal to the energy acquisition plate of energy test module first, then according to the waveform for selecting
The discharge electrode release defibrillation pulse of (unidirectional ripple, two-way ripple) control discharge module；Electric discharge terminate after master board by pulse energy
Amount collection, is sent energy scale value, voltage x current peak value and defibrillation pulse waveform and is shown by display module.
Preferably, energy test module calculates the standard value of energy using voltage x current integration method, releases in energy
Collection voltages signal and current signal while putting, calculate the power in instantaneous time t according to voltage x current, time t are being asked
The integration of the power formula is：
E=∫ UIdt
Wherein, E, instantaneous power；U, voltage；I, electric current.
The energy test module of the present invention employs voltage x current integration method, and it is while adopting exergonic to calculate energy
Collecting voltage and current signal, calculate instantaneous power according to voltage x current, energy value are calculated to obtain by the integration of power is sought to the time.
The voltage x current integration method can not receive human body simulation load resistance size and distributed inductance capacitive effect, accurately can survey
Amount defibrillation pulse energy, it is adaptable to the high calculating of energy balane required precision.
Preferably, capacitance module includes：
Diode, the positive pole of diode are connected to charging module；
Electric capacity, one end of electric capacity are connected with the negative pole of diode, and the other end is connected to charging module；
First relay, one end of the first relay are connected to the negative pole of control module and diode；
Second relay, the second relay are connected with the other end of control module and electric capacity respectively.
Preferably, energy test module includes：
Potentiometer, one end of potentiometer are connected to the first relay, and the other end collects unit by the voltage number of accepting and believing and is connected to
Control module；
Inspection leakage resistance, inspection leakage resistance one end are connected to the second relay, and the other end is connected by current signal collecting unit
To control module；
Outer meeting resistance, outer meeting resistance one end are connected to the first relay, and the other end is connected with inspection leakage resistance.
Wherein, the external defibrillation simulator electric discharge of energy test module, self-test and self-calibration quasi-mode block are discharged using outer meeting resistance.From
The purpose of inspection self calibration module is whether detection energy scale source being capable of normal work.Including charging, normal, discharge normal and energy
Measure examination normal.During use, the capacitance of storage capacitor can change in energy scale source.In order to ensure discharge energy still
Accurately, the accurate of rechargeable energy is should be ensured that first.The quasi- mode of its self-test and self-calibration is：Outer meeting resistance is using high accuracy, high stable
Property resistance, can so exclude the impact of discharge resistance, and charge constant τ is calculated by control module, due to τ=
R*C, outer meeting resistance R if capacitance C of storage capacitor reduces, are filled in same, it is known that capacitance C of storage capacitor can be obtained
Under electric flux, control module will control the voltage for filling get Geng Gao, accurate so as to complete self-test and self-calibration.
Real-time detection release after energy test module receives the energy measuring signal of the master board of control module is removed
Running pulse is rushed voltage x current value and passes through the voltage electricity that A/D change-over circuits, micro controller process circuit (STM32 process circuits) will discharge
Flow valuve collection, the master board for processing and being transferred to control module；Voltage signal acquisition unit in energy test module, electric current
Signal gathering unit is using potentiometer and inspection leakage resistance will be up to the voltage of thousands of volts and tens of amperes of electric current is converted to A/D cores
Voltage signal in piece normal range of operation, detects resistance of the circuit from 1% precision non-inductance design, detects the resistance of circuit
From the noninductive high-power resistance of 8～12m Ω.To reduce impact of the current sense resistor to defibrillation pulse, detection electricity as far as possible
Noninductive high-power resistance of the resistance from 10m Ω.
Wherein, micro controller is serial using STM32.
Further, energy test module is carrying out to introduce various high-frequency noises when high-voltage high-speed is sampled, these high frequencies
Noise management regime is：The input that the signal adopted enters A/D sampling A/D chips is added into filter circuit first, high frequency therein is filtered
Interference, next to that the wire that high-voltage acquisition part is connected with A/D sampling A/D chips adds magnet ring；Other A/D sampling A/D chips and its surrounding
Circuit adds radome, adds light-coupled isolation between A/D sampling A/D chips and control module.Wherein, filter circuit is LC filter circuits.LC
The resistance of the inductance of filter circuit is little, and DC losses are little, big to the induction reactance of alternating current, good wave filtering effect.
Using Electro Magnetic Compatibility (EMC) magnetic cell with more high anti-jamming capacity, EMC magnetic cells are on the one hand for above-mentioned measure
Equipment can be made to be less than certain limit value to the electromagnetic interference that place environment is produced in normal course of operation；On the other hand can make
Equipment has a certain degree of immunity to interference, i.e. electromagnetic susceptibility to electromagnetic interference present in the environment of place, so as to effectively subtract
What little sampled signal was subject to disturbs.
Preferably, discharge module includes：Unidirected discharge module and two-way discharge module.
Preferably, unidirected discharge module includes：
Current sensor, current sensor are connected with current signal collecting unit；
First load, one end of the first load are connected with the first relay, and the other end is connected to the by current sensor
Two relays.
Preferably, two-way discharge module includes：
H-bridge drive circuit, H-bridge drive circuit are connected with the first relay and the second relay respectively；
Switch drive unit, switch drive unit one end are connected to control module, and the other end is connected with H-bridge drive circuit.
Preferably, H-bridge drive circuit includes：
Second load；
Switch module, including first switch component, second switch component, the 3rd switch module and the 4th switch module, its
Middle first switch component and the 3rd switch module are in parallel, and second switch component and the 4th switch module are in parallel, first after parallel connection
Switch module and the 3rd switch module and second switch component and the 4th switch module after parallel connection pass through the second load in series.
Preferably, first switch component is that switch one and switch two are connected, and second switch component is three Hes of switch
Switch four is connected, and the 3rd switch module is that switch five and switch six are connected, and the 4th switch module is that switch seven and switch eight are connected,
Switch one is high voltage gate dielectric bipolar transistor to switch eight.
Wherein, single-phase ripple electric discharge is that, during electric discharge, sense of current does not change, and after charging complete, controls mould
The master board of block drives the bipolar crystalline substance of high voltage gate dielectric of H-bridge drive circuit by controlling the first relay or the second relay
Body pipe (IGBT) is turned on, and is closed at switch one, switch two, switch seven, switch eight, the energy of storage is discharged into defibrillation energy
On the human body simulation resistance of analyser.
Forward direction of the impulse circuit direction discharged in the bi-phase wave electric discharge course of work by is after a setting time of discharging
It is inverted to negative sense；After charging complete, by controlling the first relay and the second relay closure, the height of H-bridge drive circuit is driven
Pressure igbt (IGBT) conducting, cut-off；Switch one, switch two, switch seven, eight points of switch are one group, switch three,
Switch four, switch five, switch six are another group, and four in two groups switching tube is simultaneously switched off or closed；Two groups of switches replace
Conducting, the sense of current of the human body simulation resistance that defibrillation energy analyser is flow through in control can change, and block finger so as to form two-phase
Number form defibrillation discharge waveform, in the both direction of electric discharge, pulsed discharge waveform still defers to exponential damping.
The electric discharge plate part of discharge module is the drive control of high voltage gate dielectric bipolar transistor (IGBT), i.e. high pressure is exhausted
The control of edge grid bipolar transistor (IGBT) gate drive waveform, is driven using transformer isolation, and reduction is done to drive signal
Disturb；After the interference of drive signal is removed, can prevent from making high voltage gate dielectric bipolar transistor due to the spike interference on drive signal
(IGBT), there is the straight-through phenomenon of H-bridge drive circuit in secondary conducting, damages high voltage gate dielectric bipolar transistor (IGBT)；Separately
Outward, the electric capacity used in the RC absorption circuits between the C poles and E poles of high voltage gate dielectric bipolar transistor (IGBT) is pressure.
To sum up, defibrillation energy analyser calibrating installation of the invention is that armarium manufacturing enterprise and armarium at different levels are examined
Survey institutions conduct Registration Test, metering and trace to the source etc. and reliable standard utensil is provided, so as to ensure that it is accurate that defibrillator releases energy
Type, type of can tracing to the source and comparability.
Embodiment
Fig. 1 shows structural representation according to an illustrative embodiment of the invention.
A kind of defibrillation energy analyser calibrating installation of exemplary embodiment of the invention, including：
Control module 1；
Charging module 2, charging module 2 are connected to control module 1；
Power module 9, power module 9 are connected with charging module 2, for providing power supply energy to charging module 2；
Capacitance module 3, capacitance module 3 are connected with charging module 2；
Wherein, after apparatus of the present invention start, charging module 2 is for being stored into electric capacity mould by the power supply energy of power module 9
Block 3；
Discharge module 4, discharge module 4 are connected to control module 1, after charging, for the power supply energy for storing capacitance module 3
Amount is discharged according to waveform；
Energy test module 5, energy test module 5 are connected with control module 1, for gathering the electricity of the release of discharge module 4
Pressure signal and current signal, and calculate the standard value for actually releasing energy；
Self-test and self-calibration quasi-mode block 6, self-test and self-calibration quasi-mode block 6 are connected with control module 1, for checking power module 9 whether
Normally, and capacitance variation causes in periodic measurement and compensating charge module 2 rechargeable energy deviation；
Protection module 7, protection module 7 are connected with capacitance module 3, for protecting power module 9 to work within normal range,
And capacitive energy is discharged automatically by internal circuit in 3 charging complete of capacitance module to Preset Time；
Display module 8, display module 8 are connected with control module 1, for showing present discharge waveform, charged state and
The standard value for actually releasing energy and pulse voltage current value；
Wherein, control module 1 is used to realizing the starting up of apparatus of the present invention, and control charging module 2, discharge module 4,
The function of self-test and self-calibration quasi-mode block 6, energy test module 5 and display module 8.
Fig. 2 shows that the structure of the capacitance module and energy test module of an exemplary embodiment of the invention is shown
It is intended to.
As shown in Fig. 2 capacitance module 3 includes：
Diode 31, the positive pole of diode 31 are connected to charging module 2；
Electric capacity 32, one end of electric capacity 32 are connected with the negative pole of diode 31, and the other end is connected to charging module 2；
First relay 33, one end of the first relay 33 are connected to the negative pole of control module 1 and diode 31；
Second relay 34, the second relay 34 are connected with the other end of control module 1 and electric capacity 32 respectively.
Energy test module 5 includes：
Potentiometer 51, one end of potentiometer 51 are connected to the first relay 33, and the other end collects unit by the voltage number of accepting and believing
54 are connected to control module 1；
Inspection leakage resistance 52,52 one end of inspection leakage resistance are connected to the second relay 34, and the other end is single by current signal collection
Unit 55 is connected to control module 1；
Outer meeting resistance 53,53 one end of outer meeting resistance are connected to the first relay 33, and the other end is connected with inspection leakage resistance 52.
Fig. 3 shows the structural representation of the unidirected discharge module of an exemplary embodiment of the invention.Fig. 4 shows
The structural representation of the two-way discharge module of an exemplary embodiment of the invention is gone out.
As shown in Figures 3 and 4, discharge module 4 includes：Unidirected discharge module and two-way discharge module.
Wherein, unidirected discharge module includes：
Current sensor 41, current sensor 41 are connected with current signal collecting unit 55；
First load 42, one end of the first load 42 are connected with the first relay 33, and the other end passes through current sensor 41
It is connected to the second relay 34.
Two-way discharge module includes：
H-bridge drive circuit 46, H-bridge drive circuit 46 are connected with the first relay 33 and the second relay 34 respectively；
Switch drive unit 43,43 one end of switch drive unit are connected to control module 1, the other end and H-bridge drive circuit
46 are connected.
Wherein, H-bridge drive circuit 46 includes：
Second load 44；
Switch module, including first switch component, second switch component, the 3rd switch module and the 4th switch module, its
Middle first switch component and the 3rd switch module are in parallel, and second switch component and the 4th switch module are in parallel, first after parallel connection
Switch module and the 3rd switch module and second switch component and the 4th switch module after parallel connection are connected by the second load 44.
Wherein, first switch component is that switch one and switch two are connected, and second switch component is that switch three and switch four are gone here and there
Connection, the 3rd switch module for switch five and switch six connect, the 4th switch module for switch seven and switch eight connect, switch one to
The switch eight is high voltage gate dielectric bipolar transistor.
It is described above embodiments of the invention, described above is exemplary, and non-exclusive, and also not
It is limited to disclosed embodiment.In the case of the scope and spirit without departing from embodiment described, for the art
Those of ordinary skill for many modifications and changes will be apparent from.The selection of term used herein, it is intended to best
The principle of embodiment, practical application or the improvement to the technology in market are explained in ground, or make the art other are common
Technical staff is understood that embodiments disclosed herein.
Claims (10)
1. a kind of defibrillation energy analyser calibrating installation, including：
Control module；
Charging module, the charging module are connected to the control module；
Power module, the power module are connected with the charging module, for providing power supply energy to the charging module；
Capacitance module, the capacitance module are connected with the charging module；
Wherein, the charging module is for being stored into the capacitance module by the power supply energy of the power module；
Discharge module, the discharge module are connected to the control module, for the power supply for storing the capacitance module
Energy is discharged according to waveform；
Energy test module, the energy test module are connected with the control module, for gathering the discharge module release
Voltage signal and current signal, and calculate the standard value that actually releases energy；
Self-test and self-calibration quasi-mode block, the self-test and self-calibration quasi-mode block are connected with the control module, for checking the power module
It is whether normal, and the rechargeable energy deviation that capacitor's capacity change causes in periodic measurement and the compensation charging module；
Protection module, the protection module are connected with the capacitance module, for protecting the power module within the normal range
Work, and capacitive energy is discharged automatically by internal circuit in the capacitance module charging complete to Preset Time；
Display module, the display module are connected with the control module, for showing present discharge waveform, charged state and
The standard value for actually releasing energy and pulse voltage current value；
Wherein, the control module is used for the starting up for realizing described device, and controls the charging module, the electric discharge mould
The function of block, the self-test and self-calibration quasi-mode block, the energy test module and the display module.
2. defibrillation energy analyser calibrating installation according to claim 1, wherein, the capacitance module includes：
Diode, the positive pole of the diode are connected to the charging module；
Electric capacity, one end of the electric capacity are connected with the negative pole of the diode, and the other end is connected to the charging module；
First relay, one end of first relay are connected to the negative pole of the control module and the diode；
Second relay, second relay are connected with the other end of the control module and the electric capacity respectively.
3. defibrillation energy analyser calibrating installation according to claim 2, wherein, the energy test module includes：
Potentiometer, one end of the potentiometer are connected to first relay, and the other end collects unit by the voltage number of accepting and believing and connects
It is connected to the control module；
Inspection leakage resistance, described inspection leakage resistance one end are connected to second relay, and the other end passes through current signal collecting unit
It is connected to the control module；
Outer meeting resistance, described outer meeting resistance one end are connected to first relay, and the other end is connected with the inspection leakage resistance.
4. defibrillation energy analyser calibrating installation according to claim 1, wherein, the discharge module includes：Unidirectionally put
Electric module and two-way discharge module.
5. defibrillation energy analyser calibrating installation according to claim 4, wherein, the unidirected discharge module includes：
Current sensor, the current sensor are connected with the current signal collecting unit；
First load, one end of first load are connected with first relay, and the other end passes through the current sensor
It is connected to second relay.
6. defibrillation energy analyser calibrating installation according to claim 4, wherein, the two-way discharge module includes：
H-bridge drive circuit, the H-bridge drive circuit are connected with first relay and second relay respectively；
Switch drive unit, described switch drive unit one end are connected to the control module, and the other end drives electricity with the H bridges
Road is connected.
7. defibrillation energy analyser calibrating installation according to claim 6, wherein, the H-bridge drive circuit includes：
Second load；
Switch module, including first switch component, second switch component, the 3rd switch module and the 4th switch module, wherein institute
State first switch component and the 3rd switch module be in parallel, the second switch component and the 4th switch module are in parallel,
The first switch component and the 3rd switch module after parallel connection and the second switch component and the 4th switches set after parallel connection
Part passes through second load in series.
8. defibrillation energy analyser calibrating installation according to claim 7, wherein, the first switch component is switch one
Connect with switch two, the second switch component is that switch three and switch four are connected, and the 3rd switch module is five Hes of switch
Switch six is connected, and the 4th switch module is that switch seven and switch eight are connected, and the switch one is high pressure to the switch eight
Igbt.
9. defibrillation energy analyser calibrating installation according to claim 1, wherein, the energy test module adopts voltage
Current integrating method calculates the standard value of the energy, exergonic while the collection voltage signal and current signal, root
The power in instantaneous time t is calculated according to voltage x current, in the integration formula that power is sought to time t is：
E=∫ UIdt
Wherein,
E, instantaneous power；U, voltage；I, electric current.
10. defibrillation energy analyser calibrating installation according to claim 1, wherein, the self-test and self-calibration quasi-mode block from
Examining self calibration mode is：
τ=R*C
Wherein, τ, the charge constant calculated by control module；
R, extraneous resistance；
C, can obtain the capacitance of storage capacitor.
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| CN201611116660.1A CN106597357A (en) | 2016-12-07 | 2016-12-07 | Calibrating device of defibrillation energy analyzer |
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Application publication date: 20170426 |