CN101947111B - Electrocardio-analog device and electrocardio-analog method for outputting polarization voltage signal - Google Patents
Electrocardio-analog device and electrocardio-analog method for outputting polarization voltage signal Download PDFInfo
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- CN101947111B CN101947111B CN201010500030A CN201010500030A CN101947111B CN 101947111 B CN101947111 B CN 101947111B CN 201010500030 A CN201010500030 A CN 201010500030A CN 201010500030 A CN201010500030 A CN 201010500030A CN 101947111 B CN101947111 B CN 101947111B
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Abstract
The invention discloses an electrocardio-analog device and an electrocardio-analog method for outputting a polarization voltage signal. The electrocardio-analog device comprises a microcontroller, a D/A conversion circuit, an output circuit and a polarization voltage module circuit, wherein the polarization voltage module circuit comprises an adding circuit and a multipath analog switch commutation circuit and receives an electrocardiosignal and a polarization voltage signal which are outputted by the D/A conversion circuit; the adding circuit performs superposition on the electrocardiosignal and the polarization voltage signal; and the microcontroller controls the analog switch commutation circuit to commutate the superposed signal among output channels. By adopting the scheme, the electrocardio-analog device also can complete the testing of anti-polarization voltage performance on the basis of the existing function, and has the advantages of wide measuring range, accurate measuring result, simple operation and capability of improving the testing efficiency effectively.
Description
Technical field
The present invention relates to the medical electronics field, relate in particular to a kind of EGC analog devices and methods therefor of exportable polarizing voltage signal, it can simulate the electrocardiosignal of output human body when having polarizing voltage.
Background technology
Present most of EGC analog device is the electronic machine of the electrocardiosignal output of simulation human body, and application EGC analog device more widely can be exported multiple standards ecg wave form and other physiological parameter.And after the improvement to new product, the also just compatible on the basis of the above function of downloading ecg wave form of the EGC analog device on the market.When using this analoglike device the electrocardio product to be carried out anti-polarizing voltage test, need to increase the equipment of an output polarization voltage, the fixed amplitude of its output polarization voltage is ± 300mV; Just still there is following deficiency in the use of the EGC analog device of technology at present; When at first product being carried out the test of anti-polarizing voltage, need to increase in addition the polarizing voltage testing equipment; Secondly along with the electrocardio performance of products improves, the anti-polarizing voltage of electrocardio product requires to have brought up to 600mV even higher, and present anti-polarizing voltage test specification is limited, and has satisfied not the adjustable requirement of polarizing voltage amplitude; And polarizing voltage is switched between difference is led and can only be accomplished through manual adjustments, influences detection efficiency.
In view of this, thus be necessary prior art is done further perfect, in the hope of solving above-mentioned all problems.
Summary of the invention
Deficiency to prior art; The present invention is integrated in the polarizing voltage output function in the EGC analog device; And when adopting the D/A change-over circuit to make it satisfy the anti-polarizing voltage performance of test electrocardio product to the requirement of different amplitude polarizing voltages; Through software programming, the one-key operation polarizing voltage is switched between difference is led simultaneously.
To achieve these goals, the present invention adopts following technical scheme
A kind of EGC analog device of output polarization voltage mainly is made up of microcontroller, D/A change-over circuit, output circuit, also comprises a polarizing voltage modular circuit, and this polarizing voltage modular circuit is made up of multiway analog switch and add circuit; It receives the output signal of prime D/A change-over circuit, and add circuit superposes electrocardiosignal and polarizing voltage, and the microprocessor controls analog switch switches at each interchannel the signal after superposeing.
Electrocardiosignal and polarizing voltage are superposeed, the signal after the stack is switched between each output channel; The output of polarizing voltage electrocardiosignal thus realizes having superposeed.
Microcontroller and D/A change-over circuit, polarizing voltage modular circuit, button are connected and control the work of D/A change-over circuit, polarizing voltage modular circuit, button and display circuit with display circuit.
Described D/A change-over circuit is used to produce reference waveform and polarizing voltage, and with reference waveform and the polarizing voltage input signal as the polarizing voltage modular circuit.
Output circuit is made up of the multichannel output channel, and its output signal with the polarizing voltage modular circuit is adjusted to suitable scope, and it is outputed to system terminal.
A kind of method of output polarization voltage signal is characterized in that: may further comprise the steps:
Produce a polarizing voltage signal and an electrocardiosignal, said polarizing voltage signal and said electrocardiosignal are superposeed;
And the signal after will superposeing switches between each output channel.
Polarizing voltage signal and said electrocardiosignal result from the D/A change-over circuit, and are exported by the D/A change-over circuit.
Polarizing voltage signal and said electrocardiosignal superpose through add circuit.
Utilize the signal after the multiway analog switch commutation circuit will superpose between each output channel, to switch.
Analog switching circuit is connected with microcontroller, and is worked by microprocessor controls analog switch commutation circuit.
Also comprise button and display circuit among the present invention, it is mainly used in man-machine interaction; Button is imported the control information of man-machine interaction as the input of system, and triggering system starts various functions; Display circuit is as the output of system, the parameter of output waveform, Operating Guideline and warning message.
EGC analog device behind the employing such scheme on existing function basis, also can be accomplished the anti-polarizing voltage performance test of product; And measuring range is more extensive, and test result is more accurate; Simultaneously simple to operate, more can effectively improve testing efficiency.
Description of drawings
Fig. 1 is the control block diagram of the EGC analog device of output polarization voltage signal of the present invention;
Fig. 2 is a polarizing voltage modular circuit structure chart among the present invention;
Fig. 3 is the circuit theory diagrams of polarizing voltage modular circuit among the present invention;
Fig. 5 is a system signal flow chart of the present invention;
Fig. 4 is a workflow diagram of the present invention.
The specific embodiment
Leading to below combines accompanying drawing that the present invention is described in further detail:
As shown in Figure 1, the EGC analog device of output polarization voltage signal of the present invention mainly is made up of microcontroller 20, D/A change-over circuit 30, polarizing voltage modular circuit 40, output circuit 50, key circuit 10 and display circuit 60; Microcontroller 20 connects D/A change-over circuit 30, polarizing voltage modular circuit 40, key circuit 10 and display circuit 60 compositions and control D/A change-over circuit 30, polarizing voltage modular circuit 40, key circuit 10 and display circuit 60 work as the core of whole EGC analog device among the present invention; Wherein the D/A change-over circuit 30, are mainly used in the reference waveform and the polarizing voltage that produce electrocardiosignal, as the input of polarizing voltage modular circuit 40; Button and display circuit are used for man-machine interaction.Button is imported the control information of man-machine interaction as the input of system, and triggering system starts various functions; The output of display circuit display system, the parameter of output waveform, Operating Guideline and warning message.The method of the polarizing voltage signal output of the EGC analog device of above-mentioned output polarization voltage signal is; At first produce a polarizing voltage signal and an electrocardiosignal by D/A change-over circuit 30, the add circuit in the polarizing voltage modular circuit 40 superposes the polarizing voltage signal and the electrocardiosignal that produce; Signal after commutation circuit will superpose switches output between each output channel.
Polarizing voltage modular circuit 40 as shown in Figures 2 and 3, it connects D/A change-over circuit 30, mainly is made up of multiway analog switch commutation circuit 150 and add circuit 140; When 30 of D/A change-over circuits produced electrocardiosignal 100 input polarizing voltage modular circuits 40, polarizing voltage modular circuit 40 was with electrocardiosignal 100 conditioning back outputs; When D/A change-over circuit 30 produced standard cardioelectric signal 100 with polarizing voltage signal 110 input polarizing voltage modular circuits 40, add circuit 140 was with electrocardiosignal 100 and the stack of polarizing voltage signal 120 two paths of signals; Just obtain thus the having superposeed output of composite signal 160 of polarizing voltage and electrocardiosignal has the output circuit that the multichannel output channel forms composite signal 160 is adjusted to suitable scope, and converts electrocardiosignal the output of to 12 lead signal.
During EGC analog device as shown in Figure 4 work, starting up's EGC analog device at first, screen display EGC analog device major function is pointed out with corresponding operating; The operator is through a kind of function of button selection EGC analog device, like outputting standard electrocardio ripple; After the selected a kind of function of operator, the EGC analog device reads, judges key value, output respective waveforms (like ecg wave form), and on screen the display waveform relevant parameter; The operator can press the polarizing voltage button as required, and this moment, screen display polarizing voltage parameter setting option comprised options such as polarity, size and channel selecting; At the outfan of EGC analog device, export the 12 lead electrocardiosignal of the polarizing voltage that superposeed.
As shown in Figure 5, concrete work of the present invention is following,
The starting up 101;
System accomplishes initialization 102;
Systemic circulation detects button 103;
According to the button trigger condition, select to accomplish subsequently:
When the button that detects triggering for generating electrocardio ripple presses 104;
Microcontroller reads Wave data 106;
DAC begins translation data 107;
Electrocardiosignal is in the passage output 108 of DAC;
Microprocessor to the control of analog switch under 111;
Electrocardiosignal is switched between each passage of 12 lead;
In the time of waveform output, show electrocardio phase of wave related parameter and information 112;
In output electrocardio ripple, when the button that detects the triggering for generating polarizing voltage is pressed,
Another passage of microprocessor control DAC begins data transaction 105;
DAC begins translation data 107;
Polarizing voltage is in another passage output 109 of DAC;
The two passes through add circuit addition 110 polarizing voltage and electrocardiosignal;
Microprocessor control analog switch, synthetic signal switches 111 between each passage of 12 lead;
In the time of waveform output, show electrocardio ripple and polarizing voltage parameter and information 112.
Claims (9)
1. the EGC analog device of an output polarization voltage signal; Comprise microcontroller, D/A change-over circuit, output circuit; It is characterized in that: also comprise a polarizing voltage modular circuit, this polarizing voltage modular circuit comprises add circuit and multiway analog switch commutation circuit; The polarizing voltage modular circuit receives the electrocardiosignal and the polarizing voltage signal of said D/A change-over circuit output; Said add circuit superposes electrocardiosignal and polarizing voltage signal, and microprocessor controls analog switch commutation circuit is switched between each output channel the signal after superposeing.
2. the EGC analog device of a kind of output polarization voltage signal according to claim 1 is characterized in that: microcontroller and D/A change-over circuit, polarizing voltage modular circuit, button are connected and control the work of D/A change-over circuit, polarizing voltage modular circuit, button and display circuit with display circuit.
3. the EGC analog device of a kind of output polarization voltage signal according to claim 1; It is characterized in that: described D/A change-over circuit is used to produce standard cardioelectric signal waveform and polarizing voltage signal, and with standard cardioelectric signal waveform and the polarizing voltage signal input signal as the polarizing voltage modular circuit.
4. the EGC analog device of a kind of output polarization voltage signal according to claim 1; It is characterized in that: said output circuit is made up of the multichannel output channel; Its output signal with the polarizing voltage modular circuit is adjusted to suitable scope, and the electrocardiosignal after will superposeing converts the output of 12 lead signal to.
5. the method for an output polarization voltage signal is characterized in that: may further comprise the steps:
Produce a polarizing voltage signal and an electrocardiosignal, said polarizing voltage signal and said electrocardiosignal are superposeed;
And the signal after will superposeing switches between each output channel.
6. the method for a kind of output polarization voltage signal as claimed in claim 5 is characterized in that: said polarizing voltage signal and said electrocardiosignal result from the D/A change-over circuit, and are exported by the D/A change-over circuit.
7. the method for a kind of output polarization voltage signal as claimed in claim 5 is characterized in that: said polarizing voltage signal and said electrocardiosignal superpose through add circuit.
8. the method for a kind of output polarization voltage signal as claimed in claim 5 is characterized in that: utilize the signal after the multiway analog switch commutation circuit will superpose between each output channel, to switch.
9. the method for a kind of output polarization voltage signal as claimed in claim 8 is characterized in that: said analog switching circuit is connected with microcontroller, and is worked by microprocessor controls analog switch commutation circuit.
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| CN201010500030A CN101947111B (en) | 2010-09-30 | 2010-09-30 | Electrocardio-analog device and electrocardio-analog method for outputting polarization voltage signal |
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| CN201010500030A CN101947111B (en) | 2010-09-30 | 2010-09-30 | Electrocardio-analog device and electrocardio-analog method for outputting polarization voltage signal |
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| CN101947111B true CN101947111B (en) | 2012-09-05 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102525433B (en) * | 2011-12-23 | 2014-07-16 | 秦皇岛市康泰医学系统有限公司 | Biomedical signal analog instrument |
| CN102613967B (en) * | 2011-12-31 | 2014-04-09 | 深圳邦健生物医疗设备股份有限公司 | Bioelectricity signal processing method and equipment |
| CN102613968B (en) * | 2011-12-31 | 2013-09-11 | 深圳邦健生物医疗设备股份有限公司 | Polarizing voltage detecting method and equipment |
| CN105877738A (en) * | 2015-01-09 | 2016-08-24 | 宁波高新区利威科技有限公司 | Physiological parameter monitoring system signal amplifier |
| US11375908B2 (en) | 2016-10-21 | 2022-07-05 | Huawei Technologies Co., Ltd. | Blood pressure detection signal sampling and compensation method and apparatus, and blood pressure signal collection system |
| CN110523000B (en) * | 2019-08-06 | 2023-07-28 | 深圳市理邦精密仪器股份有限公司 | Electrocardiogram simulation device |
| CN114624538A (en) * | 2022-03-28 | 2022-06-14 | 东南大学 | Electrocardio electrode capability test device |
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| JP2000242160A (en) * | 1999-02-23 | 2000-09-08 | Dainippon Printing Co Ltd | Organism signal generator and recording medium |
| CN2524670Y (en) * | 2001-08-13 | 2002-12-11 | 王湘生 | Digital electrocardiosignal generator |
| CN2757260Y (en) * | 2004-12-21 | 2006-02-08 | 天津市天堰医教科技开发有限公司 | Portable electrocardiogram analogue device |
| EP2233069A1 (en) * | 2009-03-25 | 2010-09-29 | Sorin CRM SAS | Active medical device including non-linear filtering means for reconstructing a surface electrocardiogram from an intracardiac electrogram |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7917774B2 (en) * | 2006-08-22 | 2011-03-29 | Pronk Technologies Inc. | Electrocardiograph and blood pressure signals simulator |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000242160A (en) * | 1999-02-23 | 2000-09-08 | Dainippon Printing Co Ltd | Organism signal generator and recording medium |
| CN2524670Y (en) * | 2001-08-13 | 2002-12-11 | 王湘生 | Digital electrocardiosignal generator |
| CN2757260Y (en) * | 2004-12-21 | 2006-02-08 | 天津市天堰医教科技开发有限公司 | Portable electrocardiogram analogue device |
| EP2233069A1 (en) * | 2009-03-25 | 2010-09-29 | Sorin CRM SAS | Active medical device including non-linear filtering means for reconstructing a surface electrocardiogram from an intracardiac electrogram |
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