CN202408872U - Biomedical signal simulator - Google Patents
Biomedical signal simulator Download PDFInfo
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- CN202408872U CN202408872U CN2011205506280U CN201120550628U CN202408872U CN 202408872 U CN202408872 U CN 202408872U CN 2011205506280 U CN2011205506280 U CN 2011205506280U CN 201120550628 U CN201120550628 U CN 201120550628U CN 202408872 U CN202408872 U CN 202408872U
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Abstract
The utility model relates to a biomedical signal simulator. The simulator comprises a central processing unit (CPU) and a simulated signal output circuit, wherein the CPU is connected with the simulated signal output circuit by a single chip microcomputer; the single chip microcomputer comprises a D/A conversion output; and the simulated signal output circuit comprises an electrocardiogram (ECG) data simulation circuit, a respiratory data simulation circuit, an invasive blood pressure (IBP) data simulation circuit and a body temperature data simulation circuit. The simulator has the following beneficial effects that the simulator can adjust the simulation quantity through man-machine interaction according to difference of human parameter characteristics to improve the authenticity and accuracy of the simulated signal, has a good man-machine interaction function, provides ECG simulation and test, multichannel non-IBP control, respiration simulation data setting and various common temperature output, integrates such four physiological parameters as ECG, respiration, body temperature and IBP on one equipment and can be used for tests and experiments in any place where patient monitors are used.
Description
Technical field
This utility model belongs to medical Instrument field, relates in particular to a kind of biomedicine signals analog.
Background technology
Clinical electrocardio commonly used, breathing, body temperature, invasive blood pressure measurement data often need convert its digital signal into analogue signal analysis at present; Especially it is single that domestic both at home and abroad at present many modulis are intended the output of device signal; Control mode is single; Some controls are merely able to adopt the fixing manual analog temperature parameter of high-precision resistance; And be merely able to simulate one or both physiological parameters, do not have the good man-machine interaction interface, to this situation; Hope to obtain the analog quantity of the data of surveying and the demand that the analog waveform assisted diagnosis can be arranged in order to satisfy the doctor, need a kind of multi-functional analog with human computer conversation's function of the several data signal being simulated output and the output of generation waveform of exploitation.
The utility model content
The purpose of this utility model is a kind of biomedicine signals analog technical scheme that proposes to the problems referred to above; This scheme adopts the mode of digital-to-analogue conversion to export the multiple parameter of the human body that collects; And can be according to the difference of human parameters characteristic; Through interactive mode analog quantity is adjusted, improved the verity and the accuracy of analogue signal.
To achieve these goals, the technical scheme of this utility model is:
A kind of biomedicine signals analog; Comprise CPU and analogue signal output circuit; Said CPU is through single-chip microcomputer connection mode analog signal output circuit; Said single-chip microcomputer includes D/A conversion output, and wherein, said analogue signal output circuit comprises: electrocardiogram (ECG) data analog circuit, breath data analog circuit, invasive blood pressure digital simulation circuit and temperature data analog circuit;
Said electrocardiogram (ECG) data analog circuit comprises electric resistance partial pressure output circuit and D/A change-over circuit, and the D/A change-over circuit is connected with single-chip microcomputer, and the simulation output of D/A change-over circuit connects the electric resistance partial pressure output circuit;
Said breath data analog circuit comprises controllable resistor rate-of-change circuit and variable baseline impedance circuit, and the controllable resistor rate-of-change circuit connects the D/A conversion output of single-chip microcomputer;
Said invasive blood pressure digital simulation circuit comprises electric resistance partial pressure output circuit and D/A change-over circuit, and the D/A change-over circuit is connected with single-chip microcomputer, and the simulation output of D/A change-over circuit connects the electric resistance partial pressure output circuit;
Said temperature data analog circuit comprises semifixed resistor circuit and digital regulation resistance, and digital regulation resistance is connected with single-chip microcomputer, and the resistance of digital regulation resistance is drawn pin and is connected with the semifixed resistor circuit.
The controllable resistor rate-of-change circuit of said breath data analog circuit and variable baseline impedance circuit comprise that FET and controlled two-way four select a non-contact switch circuit; The grid of FET connects the D/A conversion output of single-chip microcomputer; The two-way selecting side X that controlled two-way four selects a non-contact switch circuit and selecting side Y are connected the source electrode and the drain electrode of FET respectively; Controlled two-way four selects four tunnel of a non-contact switch circuit to be selected end to connect the resistance of 4 different resistances respectively as variable baseline impedance outfan, and said controlled two-way four selects the selecting side of a non-contact switch circuit to connect the control output of single-chip microcomputer.
The electric resistance partial pressure output circuit of said electrocardiogram (ECG) data analog circuit comprises the artifical resistance branch voltage follower circuit of heart rate and the artifical resistance branch voltage follower circuit of pacemaker impulse signal; The artifical resistance branch voltage follower circuit of said heart rate is a resistance series connection dividing potential drop output circuit; The artifical resistance branch voltage follower circuit of said pacemaker impulse signal comprises pulse amplitude power supply and variable resistance circuit bleeder circuit; Said variable resistance bleeder circuit comprises that resistance and controllable multipath select a non-contact switch circuit; Resistance is connected to controllable multipath and selects the selecting side of a non-contact switch circuit and be selected end; Said pulse amplitude power supply is connected the selecting side that controllable multipath selects a non-contact switch circuit, and said controllable multipath selects the control end of a non-contact switch circuit to connect the control output of single-chip microcomputer.
Said single-chip microcomputer connects the D/A change-over circuit of electrocardiogram (ECG) data analog circuit and said invasive blood pressure digital simulation circuit and the digital regulation resistance of temperature data analog circuit with the synchronous serial communication mode.
The beneficial effect that compared with present technology this utility model produces is: can be according to the difference of human parameters characteristic; Through interactive mode analog quantity is adjusted, improved the verity and the accuracy of analogue signal, have the good man-machine interaction function; EGC analog and test are provided; Multichannel invasive blood pressure control output is breathed analog data and is set, multiple common temperature output; This utility model is gathered electrocardio, breathing, body temperature, 4 kinds of physiological parameters of invasive blood pressure on the equipment, can test and test in the place of any use patient monitor.Adopt the power supply of lithium battery and/or linear adaptation device, can be recycled, reduce interfering signal, almost can be used for all patient monitoring armarium of health care industry, also a primary condition is provided simultaneously for training, assessment and preventive maintenance.
Below in conjunction with accompanying drawing embodiment this utility model being done one describes in detail.
Description of drawings
Fig. 1 is the circuit structure block diagram of this utility model;
Fig. 2 is this utility model electrocardiogram (ECG) data analog circuit figure;
Fig. 3 is this utility model breath data analog circuit figure;
Fig. 4 is this utility model invasive blood pressure digital simulation circuit diagram;
Fig. 5 is this utility model temperature data analog circuit figure.
The specific embodiment
A kind of biomedicine signals analog embodiment is referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5; Said analog comprises CPU 101 and analogue signal output circuit; Said CPU is through single-chip microcomputer 102 (model is LPC2136) connection mode analog signal output circuit; Said single-chip microcomputer includes D/A conversion output 102-1; Wherein, said analogue signal output circuit comprises: electrocardiogram (ECG) data analog circuit 103, breath data analog circuit 104, invasive blood pressure data (IBP data) analog circuit 105 and temperature data analog circuit 106; Wherein, The said CPU of present embodiment is the ARM9TDMI processor; Said analog connects LCD touch screen 107, memorizer, clock generator and APB bus 108 (Advanced Peripheral Bus) in addition around CPU; Single-chip microcomputer is to be connected with CPU through the serial ports 109 that the APB bus articulates, and the APB bus connects power management module 111, button administration module 112 and patient's medical data acquisition module 113 respectively through the serial ports+SDI module 110 that articulates.Wherein, said power management module includes power distribution circuit, and power distribution circuit is connected with lithium battery and linear power adapter; Said button administration module comprises that PVC film key and film key detect control circuit; Said patient's medical data acquisition module comprises multiple read interface circuit, can read the memorizer of any storage patient medical data information, for example USB storage or SD card memory or the like through read interface circuit.
Said electrocardiogram (ECG) data analog circuit comprises electric resistance partial pressure output circuit and D/A change-over circuit, and the D/A change-over circuit is connected with single-chip microcomputer, and the simulation output of D/A change-over circuit connects the electric resistance partial pressure output circuit;
Said breath data analog circuit comprises controllable resistor rate of change and variable baseline impedance circuit, and the controllable resistor rate of change connects the D/A conversion output of single-chip microcomputer;
Said invasive blood pressure digital simulation circuit comprises electric resistance partial pressure output circuit and D/A change-over circuit, and the D/A change-over circuit is connected with single-chip microcomputer, and the simulation output of D/A change-over circuit connects the electric resistance partial pressure output circuit;
Said temperature data analog circuit comprises semifixed resistor circuit and digital regulation resistance, and digital regulation resistance is connected with single-chip microcomputer, and the resistance of digital regulation resistance is drawn pin and is connected with the semifixed resistor circuit.
As shown in Figure 2, the electric resistance partial pressure output circuit of said electrocardiogram (ECG) data analog circuit comprises the artifical resistance branch voltage follower circuit 201 of heart rate and the artifical resistance branch voltage follower circuit 202 of pacemaker impulse signal.
The artifical resistance branch voltage follower circuit of said heart rate is through exporting after resistance R 201 and the R202 series connection dividing potential drop; Artifical resistance branch voltage follower circuit directly connects the octuple D/A output of D/A change-over circuit 2011, and what the D/A change-over circuit used is the chip of model as DAC7558IRHBRG4.
The artifical resistance branch voltage follower circuit of said pacemaker impulse signal comprises pulse amplitude power supply and variable resistance circuit bleeder circuit; Said variable resistance circuit bleeder circuit comprises that resistance and controllable multipath select a non-contact switch circuit; Resistance is connected to controllable multipath and selects the selecting side of a non-contact switch circuit and be selected end; Said pulse amplitude power supply is connected the selecting side that controllable multipath selects a non-contact switch circuit, and said controllable multipath selects the control end of a non-contact switch circuit to connect the control output of single-chip microcomputer; Wherein, What said pulse amplitude power supply used is 2.5 volts of dc sources 2021; Said controllable multipath selects a non-contact switch circuit to comprise that one one the tunnel one is selected 2022 and one three tunnel one of five non-contact switch circuits (CD74HC4051PWR) to select two non-contact switch circuits (CD74HC4053PWR) 2023; One selects five tunnel of five non-contact switch circuits to be selected the resistance R 203 that end connects five different resistances respectively; One select the selecting side X and three tunnel one of five non-contact switch circuits to select the two-way of two non-contact switch circuits to be selected end road X0, Y0 and Z0 be connected, another road X1, Y1 and the Z1 that are selected end connect power cathode simultaneously; Three the tunnel one select three tunnel selecting side X, Y and the Z of two non-contact switch circuits together to connect the resistance R 204 of seven different resistances, and the pulse amplitude power supply is connected when controllable multipath selects the selecting side of a non-contact switch circuit and also connects power cathode through resistance R 205.
Above-mentioned electrocardiogram (ECG) data analog circuit can be realized more than 30 kind of arrhythmia and normal sinus rate, performance test ripple, pacing signal.Single-chip microcomputer unpacks the host computer data that receive and is input to the DAC7558IRHBRG4 conversion chip through the SPI communication modes; This chip is selected for use to seal in and go out 12 8 passage D/A and is exported the analog-converted data with the speed of 500 packets of per second; With 2.5V as a reference the source, to adopt electric resistance partial pressure mode conditioning signal transformation range be 0～10mV, directly exports V1～V6 analogue signal.The D/A change-over circuit also has the right hand (RA) and the output of left hand (LA) signal simultaneously; The right hand and left hand signal are connected respectively to RA and LA after following again through operational amplifier 2012 and lead accordingly on the output wiring terminal post; The RL binding post at zero point of simulation output directly meets GND, receives zero line LL that present embodiment sets after simulation GND follows through operational amplifier and leads on the binding post.
One selects five non-contact switch circuits (CD74HC4051PWR) can produce five kinds of different voltages with different gears (2mv, 4mv, 6mv through electric resistance partial pressure; 8mv, 10mv), in conjunction with of the control of LPC2136 single-chip microcomputer to the CD74HC4051PWR analog switch; Exportable these five kinds of pace-making voltage magnitudes are controlled three the tunnel one through the single-chip microcomputer timer internal simultaneously and are selected the response time of two non-contact switch circuit CD74HC4053PWR analog switches to control the time of pace-making, are respectively 0.1ms; 0.5ms, 1.0ms, 1.5ms; 2.0ms five kinds of pacemaker impulse times, exportable 25 kinds of different pacemaker impulse signals.
As shown in Figure 3; The controllable resistor rate of change of said breath data analog circuit and variable baseline impedance circuit comprise that FET Q1 and controlled two-way four select a non-contact switch circuit 301 (model is CD74HC4052PWR); The grid of FET connects the D/A conversion output of single-chip microcomputer; Controlled two-way four selects selecting side X and the selecting side Y of the two-way of a non-contact switch circuit to be connected the source electrode and the drain electrode of FET respectively; Controlled two-way four selects four tunnel of a non-contact switch circuit to be selected end connects 4 different resistances respectively as variable baseline impedance outfan resistance R 301; The resistance value of different resistances is respectively 1000 Ω of 750 Ω of 500 Ω of 250 Ω of corresponding X0 and Y0, corresponding X1 and Y1, corresponding X2 and Y2, corresponding X3 and Y3, and said controlled two-way four selects the selecting side of a non-contact switch circuit to connect the control output of single-chip microcomputer.
Said breath data analog circuit is simulated the resistance variations in thoracic cavity through a controlled resistance change rate and transformation range, the variation of body impedance when simulating human body respiration.The LPC2136 single-chip microcomputer receives the digital packetized signals of host computer through serial ports; Unpack and change pin through the inner D/A of single-chip microcomputer and export different aanalogvoltages according to communications protocol; Through the voltage transformation between control SST4392 metal-oxide-semiconductor grid and the source electrode, can derive the drain electrode of metal-oxide-semiconductor and the resistance variations between the source electrode according to the V-gs characteristic curve of metal-oxide-semiconductor.The D/A pin output different voltages with different of packing data control single chip computer LPC2136 through host computer can obtain the transformation range of 0.2R, 0.5R, 1R, 3R and 0～150 breathing transformation rate respectively.Single-chip microcomputer LPC2136 changes through the baseline impedance that control analog switching circuit CD74HC4052PWR obtains 500 Ω, 1000 Ω, 1500 Ω, 2000 Ω, at last the different simulated respiration signal of output on binding post.
As shown in Figure 4, said invasive blood pressure digital simulation circuit comprises electric resistance partial pressure output circuit and D/A change-over circuit 401 (model is BU2507FV), and the D/A conversion chip is connected with single-chip microcomputer, and the simulation output of D/A conversion chip connects the electric resistance partial pressure output circuit; Electric resistance partial pressure output circuit among Fig. 4 is made up of with R402 the resistance R 401 of two groups of mutual placed in-line four different resistances respectively; Single-chip microcomputer receives host computer numeral packetized signals through serial ports; The LPC2136 single-chip microcomputer unpacks and enters data into through the SPI communication modes D/A conversion chip that seals in and go out 10 6 passages; The D/A change-over circuit is exported each analog data through passage AO1, AO2, AO4, AO6; Obtain each analog data of invasive blood pressure through 0.1% 2.49K precision resistance and 10 Ω electric resistance partial pressures again, be connected at last on the PS2 socket of 46 cores, through IBP cable output analogue signal (1 cable can only be exported the Simulation with I BP data of 1 passage).Present embodiment wound blood pressure data analog circuit is only applicable to the 5V input, and outside 5V supply voltage obtains 2.5 reference voltages of D/A conversion chip BU2507FV through operational amplifier through electric resistance partial pressure.
As shown in Figure 5, said temperature data analog circuit comprises semifixed resistor circuit and digital regulation resistance (model is AD5259BRMZ10), and digital regulation resistance 501 is connected with single-chip microcomputer, and the pin of drawing of digital regulation resistance connects resistance R 501 and semifixed resistor RW output.The temperature data analog circuit can be simulated 4 kinds of human body temperature that pre-set, and freezing (0 ℃/32
0F), hypothermia (24 ℃/75.2
0F), normal (37 ℃/98.6
0F) or the fever (40 ℃/104
0F).Pass through I through 10K fixed resistance value 256 steppings, 0.1% high accuracy number potentiometer and LPC2136 single-chip microcomputer
2The C communication modes is realized 4 kinds of simulation temperature datas, and the resistance of 2 10M of back circuit parallel connection and one 200 ohm the slide potentiometer of connecting are finely tuned, and are connected at last on the PS2 socket, through body temperature cable output simulation temperature data.
Therefore in the foregoing description, said single-chip microcomputer connects D/A change-over circuit and the D/A change-over circuit of said invasive blood pressure digital simulation circuit and the digital regulation resistance of temperature data analog circuit of electrocardiogram (ECG) data analog circuit with the synchronous serial communication mode.
The operation principle of the said patient's medical data acquisition of present embodiment module is: through reading the case discerned of storing in the SD card interface circuit; Can read the actual significant electrocardiogram (ECG) data that runs in the clinical practice; Can discern case is to be the basis with the electrocardiogram (ECG) data that is write down such as cardioelectric monitor instruments such as electrocardiograph, monitors; Cooperate the data message of these data of record to form; Data message comprises information such as sample frequency, sampling precision, data type, baseline position, the sign of calibrating, lead, and information translation is become the .txt file format.Usually the data format of gathering comprises * ..atr, * ..dat, * ..hea, through switching software the file conversion of above-mentioned form is become the discernible case form of SD card then.The case waveform that central processing unit generates after with above-mentioned conversion comes out in the LCD screen displaying; Simultaneously with of the analogue signal output of interactive mode through this case of chip microcontroller; Medical personnel can reproduce case from the comparative analysis patient's of analog signal output and waveform the state of an illness.
The operation principle of the said biomedicine signals analog of present embodiment is: with the ARM9TDMI processor is core processing unit; Electrocardio, IBP Wave data with its storage inside; Send to single-chip microcomputer through serial ports; Single-chip microcomputer is through the output of the external D/A converter of control and self D/A module; And the resistance conversion of passing through IIC module controls digital regulation resistance, realize the simulation output of electrocardio, invasive blood pressure, breathing, temperature data, realize the collection playback of patient's medical data through SDI module and case switching software.
Claims (4)
1. biomedicine signals analog; Comprise CPU and analogue signal output circuit; Said CPU is through single-chip microcomputer connection mode analog signal output circuit; Said single-chip microcomputer includes D/A conversion output, it is characterized in that said analogue signal output circuit comprises: electrocardiogram (ECG) data analog circuit, breath data analog circuit, invasive blood pressure digital simulation circuit and temperature data analog circuit;
Said electrocardiogram (ECG) data analog circuit comprises electric resistance partial pressure output circuit and D/A change-over circuit, and the D/A change-over circuit is connected with single-chip microcomputer, and the simulation output of D/A change-over circuit connects the electric resistance partial pressure output circuit;
Said breath data analog circuit comprises controllable resistor rate-of-change circuit and variable baseline impedance circuit, and the controllable resistor rate-of-change circuit connects the D/A conversion output of single-chip microcomputer;
Said invasive blood pressure digital simulation circuit comprises electric resistance partial pressure output circuit and D/A change-over circuit, and the D/A change-over circuit is connected with single-chip microcomputer, and the simulation output of D/A change-over circuit connects the electric resistance partial pressure output circuit;
Said temperature data analog circuit comprises semifixed resistor circuit and digital regulation resistance, and digital regulation resistance is connected with single-chip microcomputer, and the resistance of digital regulation resistance is drawn pin and is connected with the semifixed resistor circuit.
2. a kind of biomedicine signals analog according to claim 1; It is characterized in that; The controllable resistor rate-of-change circuit of said breath data analog circuit and variable baseline impedance circuit comprise that FET and controlled two-way four select a non-contact switch circuit; The grid of FET connects the D/A conversion output of single-chip microcomputer; The two-way selecting side X that controlled two-way four selects a non-contact switch circuit and selecting side Y are connected the source electrode and the drain electrode of FET respectively; Controlled two-way four selects four tunnel of a non-contact switch circuit to be selected end to connect the resistance of 4 different resistances respectively as variable baseline impedance outfan, and said controlled two-way four selects the selecting side of a non-contact switch circuit to connect the control output of single-chip microcomputer.
3. a kind of biomedicine signals analog according to claim 1; It is characterized in that; The electric resistance partial pressure output circuit of said electrocardiogram (ECG) data analog circuit comprises the artifical resistance branch voltage follower circuit of heart rate and the artifical resistance branch voltage follower circuit of pacemaker impulse signal; The artifical resistance branch voltage follower circuit of said heart rate is a resistance series connection dividing potential drop output circuit; The artifical resistance branch voltage follower circuit of said pacemaker impulse signal comprises pulse amplitude power supply and variable resistance circuit bleeder circuit; Said variable resistance bleeder circuit comprises that resistance and controllable multipath select a non-contact switch circuit; Resistance is connected to controllable multipath and selects the selecting side of a non-contact switch circuit and be selected end, and said pulse amplitude power supply is connected the selecting side that controllable multipath selects a non-contact switch circuit, and said controllable multipath selects the control end of a non-contact switch circuit to connect the control output of single-chip microcomputer.
4. a kind of biomedicine signals analog according to claim 1; It is characterized in that; Said single-chip microcomputer connects the D/A change-over circuit of electrocardiogram (ECG) data analog circuit and said invasive blood pressure digital simulation circuit and the digital regulation resistance of temperature data analog circuit with the synchronous serial communication mode.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525433A (en) * | 2011-12-23 | 2012-07-04 | 秦皇岛市康泰医学系统有限公司 | Biomedical signal analog instrument |
| CN103969612A (en) * | 2013-01-28 | 2014-08-06 | 北京大学 | Multifunctional acquisition module for NMRI system |
| CN104382584A (en) * | 2014-11-24 | 2015-03-04 | 北京联合大学 | Wearable electrocardiogram signal monitoring and evaluation system and implementation method thereof |
| CN107045101A (en) * | 2017-04-06 | 2017-08-15 | 天津普仁万合信息技术有限公司 | A kind of apparatus and method that accuracy detection is carried out to blood pressure measurement chip |
| RU184385U1 (en) * | 2018-04-06 | 2018-10-24 | Общество с ограниченной ответственностью (ООО) "АЛЬТОНИКА" | A device for simulating human biosignals for testing electrocardiographs |
| CN108931956A (en) * | 2018-09-03 | 2018-12-04 | 康泰医学系统（秦皇岛）股份有限公司 | Temperature signals simulation output device and method |
| CN110048721A (en) * | 2019-03-12 | 2019-07-23 | 深圳和而泰家居在线网络科技有限公司 | Signal simulator, signal imitation method, apparatus, computer equipment and storage medium |
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2011
- 2011-12-26 CN CN2011205506280U patent/CN202408872U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525433A (en) * | 2011-12-23 | 2012-07-04 | 秦皇岛市康泰医学系统有限公司 | Biomedical signal analog instrument |
| 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 |
| CN103969612A (en) * | 2013-01-28 | 2014-08-06 | 北京大学 | Multifunctional acquisition module for NMRI system |
| CN104382584A (en) * | 2014-11-24 | 2015-03-04 | 北京联合大学 | Wearable electrocardiogram signal monitoring and evaluation system and implementation method thereof |
| CN107045101A (en) * | 2017-04-06 | 2017-08-15 | 天津普仁万合信息技术有限公司 | A kind of apparatus and method that accuracy detection is carried out to blood pressure measurement chip |
| CN107045101B (en) * | 2017-04-06 | 2023-10-13 | 天津普仁万合信息技术有限公司 | Device and method for detecting accuracy of blood pressure measurement chip |
| RU184385U1 (en) * | 2018-04-06 | 2018-10-24 | Общество с ограниченной ответственностью (ООО) "АЛЬТОНИКА" | A device for simulating human biosignals for testing electrocardiographs |
| RU184385U9 (en) * | 2018-04-06 | 2018-11-30 | Общество с ограниченной ответственностью (ООО) "АЛЬТОНИКА" | A device for simulating human biosignals for testing electrocardiographs |
| CN108931956A (en) * | 2018-09-03 | 2018-12-04 | 康泰医学系统（秦皇岛）股份有限公司 | Temperature signals simulation output device and method |
| CN108931956B (en) * | 2018-09-03 | 2024-03-26 | 康泰医学系统（秦皇岛）股份有限公司 | Body temperature signal analog output device and method |
| CN110048721A (en) * | 2019-03-12 | 2019-07-23 | 深圳和而泰家居在线网络科技有限公司 | Signal simulator, signal imitation method, apparatus, computer equipment and storage medium |
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Address after: Qin 066004 West Street in Hebei province Qinhuangdao City Economic and Technological Development Zone No. 112 Patentee after: Kangtai medical system (Qinhuangdao) Limited by Share Ltd Address before: Qin 066004 West Street in Hebei province Qinhuangdao City Economic and Technological Development Zone No. 112 Patentee before: Qinhuangdao Contec Medical Systems Co.,Ltd. |
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Granted publication date: 20120905 |