CN203634155U - Intelligent electrocardiograph with data acquisition card - Google Patents
Intelligent electrocardiograph with data acquisition card Download PDFInfo
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- CN203634155U CN203634155U CN201320723385.5U CN201320723385U CN203634155U CN 203634155 U CN203634155 U CN 203634155U CN 201320723385 U CN201320723385 U CN 201320723385U CN 203634155 U CN203634155 U CN 203634155U
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Abstract
The utility model provides an intelligent electrocardiograph with a data acquisition card, and relates to the field of medical instruments. The intelligent electrocardiograph comprises acquisition circuits, a noise reduction circuit, a signal processing circuit and a processor; the key is that the signal output terminals of the acquisition circuits are connected with the signal input terminal of the noise reduction circuit; the signal output terminal of the noise reduction circuit is connected with the signal input terminal of the signal processing circuit; the signal output terminal of the signal processing circuit is connected with the processor; an input signal is processed by the processor.
Description
Technical field
This utility model relates to intelligent cardiac figure machine field, relates in particular to a kind of data collecting card intelligent cardiac figure machine.
Background technology
Heart disease is a kind of common serious harm health of people and the disease of life, has sudden and sporadic.The appliance requires stability of detection heart and professional, and the electrocardiograph that hospital is used has a lot of interference sources around electrocardiograph, causes the unstable and inaccurate problem of data that detects.Exactly because electrocardiograph has stored digital function and the multi-signal way of output, this needs corresponding capture card to gather cardiac data, but the stability of image data and accuracy belong to those skilled in the art's technical problem urgently to be resolved hurrily.
Utility model content
This utility model is intended at least solve the technical problem existing in prior art, has proposed to special innovation a kind of data collecting card intelligent cardiac figure machine.
In order to realize above-mentioned purpose of the present utility model, this utility model provides a kind of data collecting card intelligent cardiac figure machine, comprise, Acquisition Circuit, Dolby circuit, signal processing circuit and processor, its key is, described Acquisition Circuit signal output part connection Dolby circuit signal input part, and described Dolby circuit signal output part connects signal processing circuit signal input part, described signal processing circuit signal output part connects processor, by processor, the signal of input is processed.
The beneficial effect of technique scheme is: by the coordinated of Acquisition Circuit and Dolby circuit, better gather human heart data, accurately draw electrocardiogram (ECG) data result, described Dolby circuit is better resisted interfering signal.
Described data collecting card intelligent cardiac figure machine, preferred: described signal processing circuit comprises, input buffering and the network that leads, difference amplifier and the first photoelectrical coupler, described Dolby circuit signal output part connects input buffering and the network signal input that leads, described input buffering is connected difference amplifier signal input part with the network signal outfan that leads, described difference amplifier signal output part connects the first photoelectrical coupler signal input part, and described the first photoelectrical coupler signal output part connects processor.
Described data collecting card intelligent cardiac figure machine, preferred: described signal processing circuit also comprises: the anti-aliasing circuit of closed circuit low pass, the anti-aliasing circuit of described closed circuit low pass is connected between difference amplifier and photoelectrical coupler.
Described data collecting card intelligent cardiac figure machine, preferred: described Acquisition Circuit comprises the first Acquisition Circuit and the second Acquisition Circuit, described the first Acquisition Circuit is connected Dolby circuit jointly with the second Acquisition Circuit, and the signal that the first Acquisition Circuit and the second Acquisition Circuit are received carries out noise reduction process.
Described data collecting card intelligent cardiac figure machine, preferred: described Acquisition Circuit comprises respectively acquisition electrode and ground electrode, described acquisition electrode connects tested human body and receives health sampled data, ground electrode ground connection.
Described data collecting card intelligent cardiac figure machine; preferred: also to comprise sampling resistor and accurate cymoscope; described collection resistance connects accurate cymoscope; the line end of described sampling electrode is divided into two-way; one tunnel connects the signal output part in ac-excited source through sampling resistor, another road is connected with the signal input part of signal processing circuit; Described accurate cymoscope connects Dolby circuit.
Described data collecting card intelligent cardiac figure machine, preferred: also comprise, testing circuit and the second photoelectrical coupler of coming off that lead, described in the lead testing circuit that comes off connect respectively difference amplifier and photoelectrical coupler, described photoelectrical coupler connects processor.
Described data collecting card intelligent cardiac figure machine, preferred: also comprise, DC/DC buffer circuit, described DC/DC buffer circuit connect processor.
Described data collecting card intelligent cardiac figure machine, preferred: described processor is dsp processor or FPGA.
Described data collecting card intelligent cardiac figure machine, preferred: described Dolby circuit comprises, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first transistor, transistor seconds, the 3rd transistor, described second electric capacity one end connects voltage end, and the described second electric capacity other end connects respectively the first resistance, the first electric capacity and the 4th electric capacity one end, described the first resistance other end ground connection, another termination second resistance one end of described the first electric capacity, the described second resistance other end connects respectively the first transistor negative pole and the 4th electric capacity other end, described the first transistor plus earth, described the 3rd electric capacity one end connects voltage end positive pole, described the 3rd electric capacity other end ground connection, described the 5th electric capacity one end connects voltage end negative pole, described without electric capacity other end ground connection, described the first transistor output termination the 3rd resistance one end, described the 3rd resistance other end connects respectively the 4th resistance, the 5th resistance and the 6th electric capacity one end, described the 5th resistance other end connects the 7th electric capacity one end, described the 4th resistance other end connects transistor seconds negative pole, described the 6th electric capacity other end ground connection, described transistor seconds plus earth, described transistor seconds outfan connects the 6th resistance, and described the 6th resistance other end connects respectively the 7th resistance, the 8th resistance and the 8th electric capacity one end, described the 7th resistance other end connects the 9th electric capacity one end, and described the 8th resistance other end connects the 3rd transistor negative pole, described the 8th electric capacity other end ground connection, described the 3rd transistor plus earth, described the 3rd transistor outfan connects voltage output end.
The beneficial effect of technique scheme is: by filter circuit carry out signal after noise reduction process more stablize clear.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
This utility model carries out stable, omnibearing detection by multiple Acquisition Circuit and Dolby circuit to patient's cardiac data, its sampled data guarantees objective reality, especially pass through noise reduction process signal afterwards, described electrocardiograph can not be subject to the impact of surrounding devices or other signals of telecommunication;
By filter circuit carry out signal after noise reduction process more stablize clear.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is data collecting card intelligent cardiac figure machine schematic diagram of the present utility model;
Fig. 2 is data collecting card intelligent cardiac figure machine Acquisition Circuit schematic diagram of the present utility model;
Fig. 3 is data collecting card intelligent cardiac figure machine Dolby circuit connection diagram of the present utility model.
The specific embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining this utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only this utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be to be directly connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
As shown in Figure 1, this utility model provides a kind of data collecting card intelligent cardiac figure machine, comprise, Acquisition Circuit, Dolby circuit, signal processing circuit and processor, its key is, described Acquisition Circuit signal output part connection Dolby circuit signal input part, and described Dolby circuit signal output part connects signal processing circuit signal input part, described signal processing circuit signal output part connects processor, by processor, the signal of input is processed.
The beneficial effect of technique scheme is: by the coordinated of Acquisition Circuit and Dolby circuit, better gather human heart data, accurately draw electrocardiogram (ECG) data result, described Dolby circuit is better resisted interfering signal.
Described data collecting card intelligent cardiac figure machine, preferred: described signal processing circuit comprises, input buffering and the network that leads, difference amplifier and the first photoelectrical coupler, described Dolby circuit signal output part connects input buffering and the network signal input that leads, described input buffering is connected difference amplifier signal input part with the network signal outfan that leads, described difference amplifier signal output part connects the first photoelectrical coupler signal input part, and described the first photoelectrical coupler signal output part connects processor.
Described data collecting card intelligent cardiac figure machine, preferred: described signal processing circuit also comprises: the anti-aliasing circuit of closed circuit low pass, the anti-aliasing circuit of described closed circuit low pass is connected between difference amplifier and photoelectrical coupler.
Described data collecting card intelligent cardiac figure machine, preferred: described Acquisition Circuit comprises the first Acquisition Circuit and the second Acquisition Circuit, described the first Acquisition Circuit is connected Dolby circuit jointly with the second Acquisition Circuit, and the signal that the first Acquisition Circuit and the second Acquisition Circuit are received carries out noise reduction process.
As shown in Figure 2, the first Acquisition Circuit and the second Acquisition Circuit are for the pulsation number of times that caused human body impedance changes of beating of tested person's systemic heart in unit interval of exporting; The first Acquisition Circuit and the second Acquisition Circuit all comprise respectively acquisition electrode and ground electrode; wherein the acquisition electrode of the first Acquisition Circuit is connected with position, tested human body chest respectively with ground electrode; the line end ground connection of ground electrode; the line end of acquisition electrode is divided into two-way; one tunnel connects the signal output part in ac-excited source through sampling resistor, another road is connected with the signal input part of signal processing circuit; The signal output part of described signal processing circuit connects Dolby circuit.
Described signal processing circuit comprises input buffering and the network that leads, difference amplifier, the anti-aliasing circuit of closed circuit low pass and the photoelectrical coupler of the unidirectional connection of order, and the signal output part of described photoelectrical coupler connects processor of single chip computer.
Wherein processor of single chip computer comprises digital signal processor DSP or on-site programmable gate array FPGA etc.Specifically, DSP receives the signal of telecommunication from the first Acquisition Circuit and the second Acquisition Circuit, and for regulating and this signal of telecommunication being sampled to produce conditioned signal, DSP is configured to different sample rates, original analog heart signal be sampled.
Described data collecting card intelligent cardiac figure machine, preferred: described Acquisition Circuit comprises respectively acquisition electrode and ground electrode, described acquisition electrode connects tested human body and receives health sampled data, ground electrode ground connection.
Described data collecting card intelligent cardiac figure machine; preferred: also to comprise sampling resistor and accurate cymoscope; described collection resistance connects accurate cymoscope; the line end of described sampling electrode is divided into two-way; one tunnel connects the signal output part in ac-excited source through sampling resistor, another road is connected with the signal input part of signal processing circuit; Described accurate cymoscope connects Dolby circuit.
Described data collecting card intelligent cardiac figure machine, preferred: also comprise, testing circuit and the second photoelectrical coupler of coming off that lead, described in the lead testing circuit that comes off connect respectively difference amplifier and photoelectrical coupler, described photoelectrical coupler connects processor.
Described data collecting card intelligent cardiac figure machine, preferred: also comprise, DC/DC buffer circuit, described DC/DC buffer circuit connect processor.
Described data collecting card intelligent cardiac figure machine, preferred: described processor is dsp processor or FPGA.
As shown in Figure 3, described data collecting card intelligent cardiac figure machine, preferred: described Dolby circuit comprises, the first capacitor C
1, the second capacitor C
2, the 3rd capacitor C
3, the 4th capacitor C
4, the 5th capacitor C
5, the 6th capacitor C
6, the 7th capacitor C
7, the 8th capacitor C
8, the 9th capacitor C
9, the first resistance R
1, the second resistance R
2, the 3rd resistance R
3, the 4th resistance R
4, the 5th resistance R
5, the 6th resistance R
6, the 7th resistance R
7, the 8th resistance R
8, the first transistor, transistor seconds, the 3rd transistor, described second electric capacity one end connects voltage end, the described second electric capacity other end connects respectively the first resistance, the first electric capacity and the 4th electric capacity one end, described the first resistance other end ground connection, another termination second resistance one end of described the first electric capacity, the described second resistance other end connects respectively the first transistor negative pole and the 4th electric capacity other end, described the first transistor plus earth, described the 3rd electric capacity one end connects voltage end positive pole, described the 3rd electric capacity other end ground connection, described the 5th electric capacity one end connects voltage end negative pole, described without electric capacity other end ground connection, described the first transistor output termination the 3rd resistance one end, described the 3rd resistance other end connects respectively the 4th resistance, the 5th resistance and the 6th electric capacity one end, described the 5th resistance other end connects the 7th electric capacity one end, described the 4th resistance other end connects transistor seconds negative pole, described the 6th electric capacity other end ground connection, described transistor seconds plus earth, described transistor seconds outfan connects the 6th resistance, described the 6th resistance other end connects respectively the 7th resistance, the 8th resistance and the 8th electric capacity one end, described the 7th resistance other end connects the 9th electric capacity one end, described the 8th resistance other end connects the 3rd transistor negative pole, described the 8th electric capacity other end ground connection, described the 3rd transistor plus earth, described the 3rd transistor outfan connects voltage output end.
The beneficial effect of technique scheme is: by filter circuit carry out signal after noise reduction process more stablize clear.
Linking relationship in described processor between each circuit is: one end of described high speed crystal oscillator is carried out one-way linkage with I/O change-over circuit and is connected, one end of described filter circuit is carried out one-way linkage with I/O change-over circuit and is connected, described I/O change-over circuit carries out two-way connection with control circuit and Acquisition Circuit respectively, it between described control circuit and described Acquisition Circuit, is two-way connection tiny signal capture card, its special character is: comprise function commutation circuit, current source circuit, signal conditioning circuit, current sampling circuit, signal acquisition processing circuit and communication interface circuit, one end of described function commutation circuit is connected with terminal HI, ground terminal L, terminal HS, terminal LS, terminal I, current source circuit and current sampling circuit, the other end of described function commutation circuit successively with signal conditioning circuit, signal acquisition processing circuit is connected with communication interface circuit, described terminal HI, the L shaped one-tenth voltage acquisition of ground terminal end, described terminal HS and terminal LS form electrical resistance collection end, described ground terminal L and terminal I form current acquisition end and current source outfan, described current source circuit provides constant-current source excitation through function commutation circuit to the measured resistance at electrical resistance collection end place, described current sampling circuit is the tested electric current through current acquisition end through function commutation circuit acquisition stream, described signal conditioning circuit is converted into voltage signal through function commutation circuit by measured resistance, electric current, and is transferred to signal conditioning circuit and carries out signal amplification or attenuation processing.
Above-mentioned functions commutation circuit comprises K switch 1, K switch 2, K switch 3 and four is selected an analog switch K4, one end of described K switch 2 is connected with terminal HI, the other end of described K switch 2 divides two-way, one tunnel is connected with current source circuit through K switch 1, another Lu Yusi selects the contact A of an analog switch K4 to connect, terminal I is through K switch 3, after current sampling circuit, select the contact B of an analog switch K4 to be connected with four, terminal HS and four selects the contact C of an analog switch K4 to be connected, terminal LS and four selects the contact D of an analog switch K4 to be connected, four select the contact of an analog switch K4 to be connected with signal conditioning circuit.Above-mentioned current source circuit comprises clamp circuit, current-limiting circuit, GSS Gear Select Switch J1-J14, and feedback output circuit, described current-limiting circuit comprises current-limiting resistance R4-R10, described current-limiting resistance R4-R10 one end parallel connection.
Described clamp circuit comprises the first operational amplifier U1B, field effect transistor Q1, Zener diode D2, resistance R 1, resistance R 2, described feedback output circuit comprises the second operational amplifier U1A, Zener diode D1 and resistance R 3, the positive pole of described the first operational amplifier U1B connects 5V power supply, the negative pole of described the first operational amplifier U1B is by resistance R 2 ground connection, the grid of the output termination field effect transistor Q1 of described the first operational amplifier U1B, the source electrode connecting resistance R2 of described field effect transistor Q1, the drain electrode of described field effect transistor Q1 divides two-way, one tunnel is connected with one end of resistance R 1, another road is connected with the positive pole of the second operational amplifier U1A, the other end of described resistance R 1 divides two-way, the Zener diode D2 of leading up to is connected with power supply, the other end is connected with one end of current-limiting circuit, the other end of the resistance R 4 of described current-limiting circuit divides two-way, the GSS Gear Select Switch J1 of leading up to is connected with the negative pole of the second operational amplifier U1A, the GSS Gear Select Switch J8 of separately leading up to is connected with the drain electrode of field effect transistor Q2, the connected mode of the other end of the resistance R 5-R10 of described current-limiting circuit is identical with resistance R 4, the outfan of described the second operational amplifier U1A is connected with one end of resistance R 3 by Zener diode D1, the grid of described field effect transistor Q2 is connected with one end of resistance R 3, the other end of described resistance R 3 is connected with power supply.
Above-mentioned signal conditioning circuit comprises the 3rd operational amplifier U1C, four-operational amplifier U1D, the 5th operational amplifier U1E, the 6th operational amplifier U1F, resistance R 11-R19 and resistance R ref, the minus earth of described the 3rd operational amplifier, the positive pole of described the 3rd operational amplifier, one end of one end of resistance R ref and resistance R 12 connects, the outfan of described the 3rd operational amplifier, one end of the other end of resistance R 12 and resistance R 14 connects, the negative pole of described four-operational amplifier U1D, the other end of resistance R 11 and resistance R ref connects, the outfan of described four-operational amplifier U1D, one end of the other end of resistance R 11 and resistance R 13 connects, and the positive pole of four-operational amplifier U1D meets VIN, the other end of described resistance R 14, the negative pole of the 5th operational amplifier U1E, one end of resistance R 15 connects, the other end of described resistance R 13, one end of one end of the positive pole of the 5th operational amplifier U1E and resistance R 16 and resistance R 19 connects, the outfan of described the 5th operational amplifier U1E, the other end of resistance R 15, one end of one end of resistance R 17 and resistance R 18 connects, and the other end of described resistance R 18 is as the negative pole of out-put supply, the other end of described resistance R 17, the other end of resistance R 16, the negative pole of the 6th operational amplifier U1F connects, and the outfan of the other end of described resistance R 19 and the 6th operational amplifier U1F is as the positive pole of out-put supply, and the positive pole of the 6th operational amplifier U1F meets difference output male model voltage VREF.
Above-mentioned current sampling circuit comprises Zener diode D3-D6, the 7th operational amplifier U1G and sampling resistor R0, one end of described sampling resistor R0, the equal ground connection of negative electrode of the anode of Zener diode D6 and Zener diode D4, the other end of described sampling resistor R0, the anode of the negative electrode of Zener diode D5 and Zener diode D3 is all connected with the positive pole of the 7th operational amplifier U1G, the negative electrode of described Zener diode D3, the anode of Zener diode D4, the negative electrode of the anode of Zener diode D5 and Zener diode D6 is all connected with the negative pole of the 7th operational amplifier U1G, the outfan of described the 7th operational amplifier U1G is connected with the negative pole of the 7th operational amplifier U1G, the positive pole of described the 7th operational amplifier U1G is as the sampling end of current sampling circuit, and the outfan of described the 7th operational amplifier U1G is as the outfan of current sampling circuit, and the positive pole of described the 7th operational amplifier U1G is connected with function commutation circuit.
Above-mentioned communication interface circuit is RS232, RS485, USB or Ethernet digital interface.
This utility model has advantages of:
1, this utility model carries out stable, omnibearing detection by multiple Acquisition Circuit and Dolby circuit to patient's cardiac data, its sampled data guarantees objective reality, especially pass through noise reduction process signal afterwards, described electrocardiograph can not be subject to the impact of surrounding devices or other signals of telecommunication.
2, this utility model is when to small resistance measurement, and current source has the fan-out capability of totally 9 gears from 500nA～1A, and resistance measurement scope is from 10 microhms～10M ohm, and the precision of measurement is high.Signal conditioning circuit adopts improved magnifier, has greatly reduced the impact of analog switch conducting resistance for gain.The current sampling circuit of optimizing, reduces the impact of leakage current on acquisition precision, and current measuring range is from 10nA～3A.
2, this utility model is realized for the high-acruracy survey of normal signal (resistance, voltage, electric current), has HDR, provides for micro-ohm, Na An and receives collection, the measurement function of vor signal.Usability is strong, can be connected with any computer that meets configuration requirement, realizes electrocardiogram function; Plug and play, starts the electrocardio software that is built in lead line type electrocardiograph automatically with computer after being connected, without manual installation, operate very easy; The electrocardiogram (ECG) data of institute's collection analysis is stored on lead line type electrocardiograph, can either effectively preserve gathered electrocardiogram (ECG) data, can not cause any data rubbish to the computer of Interim use again.As long as (can be both desk-top by described electrocardiograph and common computer that any one is available.Also can be portable) be connected, just can realize the repertoire such as collection, processing, analysis, demonstration, printing of electrocardiosignal.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (10)
1. a data collecting card intelligent cardiac figure machine, comprise, Acquisition Circuit, Dolby circuit, signal processing circuit and processor, it is characterized in that, described Acquisition Circuit signal output part connects Dolby circuit signal input part, described Dolby circuit signal output part connects signal processing circuit signal input part, and described signal processing circuit signal output part connects processor, by processor, the signal of input is processed.
2. data collecting card intelligent cardiac figure machine according to claim 1, it is characterized in that: described signal processing circuit comprises, input buffering and the network that leads, difference amplifier and the first photoelectrical coupler, described Dolby circuit signal output part connects input buffering and the network signal input that leads, described input buffering is connected difference amplifier signal input part with the network signal outfan that leads, described difference amplifier signal output part connects the first photoelectrical coupler signal input part, and described the first photoelectrical coupler signal output part connects processor.
3. data collecting card intelligent cardiac figure machine according to claim 2, it is characterized in that: described signal processing circuit also comprises: the anti-aliasing circuit of closed circuit low pass, the anti-aliasing circuit of described closed circuit low pass is connected between difference amplifier and photoelectrical coupler.
4. data collecting card intelligent cardiac figure machine according to claim 1, it is characterized in that: described Acquisition Circuit comprises the first Acquisition Circuit and the second Acquisition Circuit, described the first Acquisition Circuit is connected Dolby circuit jointly with the second Acquisition Circuit, and the signal that the first Acquisition Circuit and the second Acquisition Circuit are received carries out noise reduction process.
5. according to the data collecting card intelligent cardiac figure machine described in claim 1 or 4, it is characterized in that: described Acquisition Circuit comprises respectively acquisition electrode and ground electrode, described acquisition electrode connects tested human body and receives health sampled data, ground electrode ground connection.
6. data collecting card intelligent cardiac figure machine according to claim 5; it is characterized in that: also comprise sampling resistor and accurate cymoscope; described collection resistance connects accurate cymoscope; the line end of described sampling electrode is divided into two-way; one tunnel connects the signal output part in ac-excited source through sampling resistor, another road is connected with the signal input part of signal processing circuit; Described accurate cymoscope connects Dolby circuit.
7. data collecting card intelligent cardiac figure machine according to claim 2, it is characterized in that: also comprise, testing circuit and the second photoelectrical coupler of coming off that lead, described in the lead testing circuit that comes off connect respectively difference amplifier and photoelectrical coupler, described photoelectrical coupler connects processor.
8. data collecting card intelligent cardiac figure machine according to claim 1, is characterized in that: also comprise, DC/DC buffer circuit, described DC/DC buffer circuit connect processor.
9. data collecting card intelligent cardiac figure machine according to claim 1, is characterized in that: described processor is dsp processor or FPGA.
10. data collecting card intelligent cardiac figure machine according to claim 1, is characterized in that: described Dolby circuit comprises, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first transistor, transistor seconds, the 3rd transistor, described second electric capacity one end connects voltage end, and the described second electric capacity other end connects respectively the first resistance, the first electric capacity and the 4th electric capacity one end, described the first resistance other end ground connection, another termination second resistance one end of described the first electric capacity, the described second resistance other end connects respectively the first transistor negative pole and the 4th electric capacity other end, described the first transistor plus earth, described the 3rd electric capacity one end connects voltage end positive pole, described the 3rd electric capacity other end ground connection, described the 5th electric capacity one end connects voltage end negative pole, described without electric capacity other end ground connection, described the first transistor output termination the 3rd resistance one end, described the 3rd resistance other end connects respectively the 4th resistance, the 5th resistance and the 6th electric capacity one end, described the 5th resistance other end connects the 7th electric capacity one end, described the 4th resistance other end connects transistor seconds negative pole, described the 6th electric capacity other end ground connection, described transistor seconds plus earth, described transistor seconds outfan connects the 6th resistance, and described the 6th resistance other end connects respectively the 7th resistance, the 8th resistance and the 8th electric capacity one end, described the 7th resistance other end connects the 9th electric capacity one end, and described the 8th resistance other end connects the 3rd transistor negative pole, described the 8th electric capacity other end ground connection, described the 3rd transistor plus earth, described the 3rd transistor outfan connects voltage output end.
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| CN201320723385.5U CN203634155U (en) | 2013-11-15 | 2013-11-15 | Intelligent electrocardiograph with data acquisition card |
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| CN201320723385.5U CN203634155U (en) | 2013-11-15 | 2013-11-15 | Intelligent electrocardiograph with data acquisition card |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104644156A (en) * | 2015-02-11 | 2015-05-27 | 清华大学深圳研究生院 | Multi-channel intracardiac electrical signal acquisition system based on FPGA (Field Programmable Gate Array) and high speed serial interfaces |
| CN106551694A (en) * | 2015-09-24 | 2017-04-05 | 西门子医疗有限公司 | Electrode condition determines facility and the method for determining electrode condition information |
| CN108896617A (en) * | 2018-06-20 | 2018-11-27 | 北京航数车辆数据研究所有限公司 | A kind of structural healthy monitoring system based on electroconductive polymer coating array |
-
2013
- 2013-11-15 CN CN201320723385.5U patent/CN203634155U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104644156A (en) * | 2015-02-11 | 2015-05-27 | 清华大学深圳研究生院 | Multi-channel intracardiac electrical signal acquisition system based on FPGA (Field Programmable Gate Array) and high speed serial interfaces |
| CN106551694A (en) * | 2015-09-24 | 2017-04-05 | 西门子医疗有限公司 | Electrode condition determines facility and the method for determining electrode condition information |
| US10267839B2 (en) | 2015-09-24 | 2019-04-23 | Siemens Healthcare Gmbh | Electrode-status-determining facility and method for determining electrode status information |
| CN106551694B (en) * | 2015-09-24 | 2019-11-12 | 西门子医疗有限公司 | Electrode condition determines facility and the method for determining electrode condition information |
| CN108896617A (en) * | 2018-06-20 | 2018-11-27 | 北京航数车辆数据研究所有限公司 | A kind of structural healthy monitoring system based on electroconductive polymer coating array |
| CN108896617B (en) * | 2018-06-20 | 2021-05-07 | 北京航数车辆数据研究所有限公司 | Structural health monitoring system based on conductive polymer coating array |
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Granted publication date: 20140611 Termination date: 20181115 |