CN105769179A - Portable twelve-lead electrocardiographic signal synchronous collecting device - Google Patents
Portable twelve-lead electrocardiographic signal synchronous collecting device Download PDFInfo
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
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- A—HUMAN NECESSITIES
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
- A61B5/0006—ECG or EEG signals
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- A—HUMAN NECESSITIES
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- A61B5/74—Details of notification to user or communication with user or patient ; user input means
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- H—ELECTRICITY
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- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
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- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
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Abstract
The invention relates to a device for collecting an electrocardiographic signal of a human body, belongs to the field of intelligent family medical facilities, and particularly discloses a portable twelve-lead electrocardiographic signal synchronous collecting device, which comprises a shell, a lead wire, a plurality of electrodes, a switch key, a conversion module, an MCU (Microprogrammed Control Unit) module, a wireless data receiving and sending module, a battery pack and a data receiving display, wherein the electrodes are used for a lead body; the switch key is arranged on the shell; the conversion module, the MCU module, the wireless data receiving and sending module, the battery pack and the data receiving display are arranged inside the shell. The electrocardiographic signal of an examined person can be precisely and effectively displayed on intelligent mobile equipment in real time for observation; further, the portable twelve-lead electrocardiographic signal synchronous collecting device has accurate and stable monitoring performance while being small and exquisite, portable and low-power-consumption.
Description
Technical field
The present invention relates to the harvester of a kind of human ecg signal, belong to wired home field of medical device, specifically a kind of portable 12 lead electrocardiosignal synchronous acquisition device.
Background technology
China's heart disease and cardiovascular patient number are increasing year by year, and for many patients, its heart physiological parameter can reflect state of an illness state and therapy rehabilitation situation effectively, therefore grasp patient's electrocardiosignal parameter in time significant.But, owing to hospital of China (medical treatment) resource is nervous, many gerontal patients and white collar class are due to handicapped or work busy, it is impossible to carry out EGC parameter monitoring to hospital in time, miss the good opportunity that heart disease is prevented and treated.
Existing electrocardiosignal parameter acquisition devices major part exist expensive, power consumption is high, volume is big, the shortcoming such as not easily shifted, senile disease patient (or white collar class is in an office) at home cannot be met health is carried out self-inspection, also the electrocardiosignal of rehabilitation cannot be carried out real-time monitoring；Then there is power consumption requirements height in small-sized electrocardiosignal synchronous acquisition device, structure is not reasonable, need external power supply to use, and the control of current/voltage is not sufficiently stable, the operation element of equipment is produced impact thus the accuracy rate affecting electrocardiosignal is on the low side, distortion value is high, and require over small-sized display and carry out the display to the signal of telecommunication, therefore use trouble, and can not possess the function analyzed and preserve data, inadequate hommization, is therefore difficult to promote the use of on a large scale.
Summary of the invention
Present invention aims to current domestic electrocardiographicoscilloscope oscilloscope and there is the shortcomings such as not portable and volume is big, a kind of portable 12 lead electrocardiosignal synchronous acquisition device is provided, electrode holder can be clipped on measured's health by easily, accurately 12 cardiac diagnosis lead figure waveforms are shown on the Intelligent mobile equipment client software of user in real time, client software is also furnished with ecg analysis and preserves function, contribute to cardiovascular patient at home EGC parameter to be guarded, provide a material reliably for the diagnosis of doctor simultaneously.
For reaching above-mentioned purpose, the present invention adopts the following technical scheme that a kind of portable 12 lead electrocardiosignal synchronous acquisition device includes: housing, conducting wire, for several electrodes of the body that leads, the switch key being placed on housing, be placed in the modular converter of enclosure interior, MCU module, wireless data transceiver module, set of cells and data receiver display
Wherein: the front end of conducting wire connects the input of the rear end connection modular converter of electrode, conducting wire, the communication ends of modular converter is connected with communication ends and the control end of MCU module with controlling end, the serial ports of MCU module is connected with the input of wireless data transceiver module, and set of cells connecting valve post-positioned press keys provides power supply for modular converter, MCU module and wireless data transceiver module in housing；Wireless data transceiver module wireless connection data receives display；
Described modular converter is the ADS1298 modular converter of 24 high-precision A/D, ADS1298 modular converter sets the Differential Input mouth of ADS1298 conversion chip, eight passages, the electrocardiosignal that the Differential Input mouth of eight passages gathers for input front end electrode, the built-in EMI filter circuit of ADS1298 conversion chip, 8 road programmable gain amplifiers, right leg drive amplifying circuit and Wilson's central electric terminal and spi bus configuration acquisition channel, spi bus configuration acquisition channel connects MCU module；
Described ADS1298 modular converter also includes ECG signal processing circuit, described ECG signal processing circuit includes the first resistance, second resistance, a number clamper limiter diode, No. two clamper limiter diodes, a number electric capacity and No. two electric capacity, one end of first resistance is connected with the outfan of electrode, one end of the other end of the first resistance and one end of the second resistance and an electric capacity is connected, the other end of the second resistance respectively with one end of No. two electric capacity, one end of a number clamper limiter diode, one end of No. two clamper limiter diodes is connected with the input of a passage of ADS1298 conversion chip, the other end of a number electric capacity and No. two electric capacity connects AGND end respectively, another termination AVDD end of a number clamper limiter diode, another termination AVSS end of No. two clamper limiter diodes.
Preferably, described MCU module includes STM32F103 single-chip microcomputer, chip crystal oscillating circuit, reset circuit, the electric source filter circuit powered for STM32F103 single-chip microcomputer and connects the GPIO port of STM32F103 single-chip microcomputer, SPI interface and USART serial ports respectively.
Preferably, described set of cells includes: lithium battery, lithium cell charging module, lithium battery voltage modular converter, battery electric quantity measurement module, lithium cell charging module is connected with lithium battery voltage modular converter, battery electric quantity measurement module is connected with MCU module, and lithium battery voltage modular converter is connected with ADS1298 modular converter, battery electric quantity measurement module, MCU module and wireless data transceiver module respectively.
Preferably, described lithium battery voltage modular converter includes boost converter chips, the 4th filter capacitor, power inductance, the 5th filter capacitor, the 6th filter capacitor, the 7th filter capacitor,
Boost converter chips connects lithium battery anode, one end of power inductance and one end of the 4th filter capacitor, one termination GND end of the 4th filter capacitor, one pin of boost converter chips connects GND end, one pin of boost converter chips connects the other end of power inductance, one pin of boost converter chips connects one end of the 6th filter capacitor and the 7th filter capacitor, another termination GND end of 6th filter capacitor and the 7th filter capacitor, one pin of boost converter chips connects one end of the 5th filter capacitor, another termination GND end of 5th filter capacitor, one pin of boost converter chips connects GND end, one pin of boost converter chips connects the anode of lithium battery.
Preferably, described lithium battery voltage modular converter also includes photovoltaic conversion chip, for respectively lithium battery voltage being converted into 3.3V, 2.5V,-2.5V, 2.5V and-2.5V provide bipolar voltage for ADS1298 modular converter, and 3.3V powers for MCU module and wireless data transceiver module again simultaneously.
Preferably, described battery electric quantity measurement module includes the second current-limiting resistance, the second filter capacitor, diode, switch key, No. two diodes, lithium battery socket, the 3rd filter capacitor, the 4th resistance, management of charging and discharging chip, the first discharge and recharge indication LED lamp, second discharge and recharge indication LED lamps
nullManagement of charging and discharging chip connects USB5V end，One pin of management of charging and discharging chip connects one end of No. two diodes and one end of lithium battery socket，One pin of management of charging and discharging chip connects GND end，One end of one termination the second filter capacitor of two current-limiting resistances，Another of two current-limiting resistances terminates the first discharge and recharge indication LED lamp and one end of the second discharge and recharge indication LED lamp，Another termination GND end of second filter capacitor，One termination USB5V end of a number diode，Another termination switch key of a number diode and one end of No. two diodes，Another termination VCC end of switch key，One pin of one termination management of charging and discharging chip of the 3rd filter capacitor、One end of one end of lithium battery socket and No. two diodes，One pin of one termination management of charging and discharging chip of the 4th resistance，Another termination GND end of 4th resistance，One pin of another termination management of charging and discharging chip of the first discharge and recharge indication LED lamp，One pin of another termination management of charging and discharging chip of the second discharge and recharge indication LED lamp.
Preferably, described wireless data transceiver module is serial ports Wi-Fi module or serial ports bluetooth module, and described data receiver display is Intelligent mobile equipment, and described Intelligent mobile equipment is smart mobile phone or panel computer, notebook computer.
Preferably, described Intelligent mobile equipment is provided with client modules, described client modules includes data receipt unit, data display unit, data analysis unit and data storage cell, data receipt unit, data display unit, data analysis unit are connected mutually with data storage cell, serial ports bluetooth module and MCU module communication connection, data receipt unit is connected by bluetooth communication with serial ports bluetooth module
The data that data receipt unit sends for receiving radio data transceiver module；
Data display unit displays for the screen that the data received call Intelligent mobile equipment；
Information data, for the data received carry out intelligence pathological analysis, is returned data display unit after being reached a conclusion by analysis by data analysis unit；
Data storage cell is for storing the data received.
Preferably, described serial ports bluetooth module includes serial ports Bluetooth chip, the 3rd electric capacity, the 3rd resistance, touch key, current-limiting resistance, bluetooth display lamp and the first filter capacitor,
nullWherein: serial ports Bluetooth chip pin connect TXD end、Another pin connects RXD end、Another pin connects 3.3V end、Another pin connects GND end，One pin of one termination serial ports Bluetooth chip of the 3rd electric capacity，Another terminates GND end，One pin of one termination serial ports Bluetooth chip of the 3rd resistance，One end of another termination touch key of the 3rd resistance，Another termination 3.3V end of touch key，One pin of one termination serial ports Bluetooth chip of current-limiting resistance，One end of another termination bluetooth display lamp of current-limiting resistance，Another termination GND end of bluetooth display lamp，One termination GND end of the first filter capacitor，Another termination 3.3V end of first filter capacitor，Described serial ports Bluetooth chip is HM-11 bluetooth 4.0 chip，Described bluetooth display lamp and touch key are arranged in housing outer surface，HM-11 bluetooth 4.0 chip is serially connected with bluetooth display lamp and bluetooth touch key，The RXD pin of HM-11 bluetooth 4.0 chip is connected to the USART serial ports of MCU module in succession.
Preferably, described lithium cell charging module selects TP4057 chip, and described battery electric quantity measurement module selects LTC2941 chip and with I2C interface to its access and configuration.
Compared with prior art, the present invention has following remarkable advantage:
nullA kind of portable 12 lead electrocardiosignal synchronous acquisition device of the present invention can as intelligent domestic armarium，Adopt two-ply PCB mask-making technology，Long and width respectively 9mm and 6mm makes this device volume little、It is easy to carry、Power consumption is relatively low、Accuracy is high，Simultaneously，Optimization structure and power consumption control at potential circuit，This device is powered and can adopt common compact lithium cell，And can intuitively visual be charged to this device by portable power source (charger baby)，The communication mode adopted is serial communication and SPI communication，Wireless wifi or bluetooth is selected to connect，Real-time waveform can be demonstrated on Intelligent mobile equipment，And waveform can be carried out anomaly analysis，And can preserve and record data on Intelligent mobile equipment，It is easy to observe for user，The AD conversion chip data processing speed that this device adopts is fast，Its sample frequency is 250SPS～32kSPS，The synchronization that the display of 12 ecg wave forms is electrocardiosignal reflects in real time.
In sum, the system hardware structure of the present invention is simple, small volume, power consumption are relatively low, precision is higher, product development cycle is short, be easy to promote the use of, and is a convenience, practicality, reliable domestic intelligent electrocardiosignal synchronous acquisition device.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of overall system of the present invention.
Fig. 2 is the ECG signal processing circuit figure of the harvester of the present invention.
Fig. 3 is the lithium battery voltage 5V booster circuit figure in the present invention.
Fig. 4 is the circuit diagram of the serial ports bluetooth module in the present invention.
Fig. 5 is the circuit diagram of the lithium cell charging module in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
Embodiment 1: as shown in Figure 1: a kind of portable 12 lead electrocardiosignal synchronous acquisition device, including: housing, conducting wire, for several electrodes of the body that leads, the switch key 404 being placed on housing, be placed in the modular converter of enclosure interior, MCU module, wireless data transceiver module, set of cells and data receiver display
Wherein: the front end of conducting wire connects the input of the rear end connection modular converter of electrode, conducting wire, the communication ends of modular converter is connected with communication ends and the control end of MCU module with controlling end, the serial ports of MCU module is connected with the input of wireless data transceiver module, and set of cells connecting valve button 404 is placed in housing and provides power supply for modular converter, MCU module and wireless data transceiver module；Wireless data transceiver module wireless connection data receives display；
Described conducting wire is ten band shielding conducting wires, the every front end with shielding conducting wire connects electrode, rear end connects the input of modular converter, during use: be respectively connected in the left finesse of measured health, right finesse, left foot wrist, right crus of diaphragm wrist and chest with shielding conducting wire by limbs folder electrode with described 10,12 cardiac diagnosis lead figure of the heart physiological parameter that can react measured in more detail can be recorded, the electrocardiosignal inputted by the electrode of measured is converted module collection
Described modular converter is the ADS1298 modular converter of 24 high-precision A/D, ADS1298 modular converter sets the Differential Input mouth of ADS1298 conversion chip, eight passages, the electrocardiosignal that the Differential Input mouth of eight passages gathers for input front end electrode, the built-in EMI filter circuit of ADS1298 conversion chip, 8 road programmable gain amplifiers, right leg drive amplifying circuit and Wilson's central electric terminal and spi bus configuration acquisition channel, spi bus configuration acquisition channel connects MCU module；ADS1298 conversion chip is compared with the A/D change-over circuit that conventional analog device is built, and its acquisition precision is higher, and filter effect is better, and function is more comprehensive, and volume is less, thus reaching portable, effect accurately,
nullWherein: as shown in Figure 2，Described ADS1298 modular converter also includes ECG signal processing circuit，Described ECG signal processing circuit includes the first resistance 101、Second resistance 102、A number clamper limiter diode 103、No. two clamper limiter diodes 104、A number electric capacity 105 and No. two electric capacity 106，One end of first resistance 101 is connected with the outfan of electrode，One end of the other end of the first resistance 101 and one end of the second resistance 102 and an electric capacity 105 is connected，The other end of the second resistance 102 respectively with one end of No. two electric capacity、One end of a number clamper limiter diode 103、One end of No. two clamper limiter diodes 104 is connected with the input of a passage of ADS1298 conversion chip，The other end of a number electric capacity 105 and No. two electric capacity 106 connects AGND end respectively，Another termination AVDD end of a number clamper limiter diode 103，Another termination AVSS end of No. two clamper limiter diodes 104，Pretreatment circuit is prevented from the introducing of external noise、Prevent the too high or too low of signal voltage，Contribute to the accurate acquisition voltage signal to human body，Prevent distorted signals，Thus improving the accurate of the electrocardiosignal gathered and stability，
Electrocardiosignal is changed after the ADS1298 modular converter collection of 24 high-precision A/D, electrocardiosignal after conversion configures acquisition channel as output by spi bus and passes to MCU module, electrocardiogram (ECG) data is carried out displacement fractionation and then data is sent data to wireless data transceiver module by serial port by MCU module, wireless data transceiver module sends data to data receiver display and carries out the display to the electrocardiosignal implemented, it is achieved that the real-time synchronization monitoring display of 12 cardiac diagnosis lead figure of the heart physiological parameter of portable stable measured.
nullEmbodiment 2: on the basis of embodiment 1，Described MCU module includes STM32F103 single-chip microcomputer、Chip crystal oscillating circuit、Reset circuit、For the electric source filter circuit that STM32F103 single-chip microcomputer is powered、And connect the GPIO port of STM32F103 single-chip microcomputer respectively、SPI interface and USART serial ports，Use these interfaces communicate facilitate after to device、The upgrading of program and the extension to device offer additional function，That improves device uses the service life lost efficacy by face and length，Chip crystal oscillating circuit therein、Reset circuit，Electric source filter circuit is the necessary circuits of single-chip microcomputer work，Which ensure that the properly functioning of single-chip microcomputer，So that the stability that device is in operation has guarantee，Electrocardiogram (ECG) data is carried out displacement fractionation and then data is sent by STM32F103，The electrocardiogram (ECG) data received is carried out displacement and integrates by Android client software，Thereby ensure that the original electrocardiographicdigital data that slave computer main control MCU transmits are accurate，Electrocardiosignal is carried out 3 rank Butterworth low pass ripples simultaneously，Remove external interfering noise，Thus improving the precision of the electrocardiogram (ECG) data of collection，Make monitoring result authentic and valid；
Described set of cells includes: lithium battery, lithium cell charging module, lithium battery voltage modular converter, battery electric quantity measurement module, lithium cell charging module is connected with lithium battery voltage modular converter, battery electric quantity measurement module is connected with STM32F103 main control MCU module, lithium battery voltage modular converter respectively with ADS1298 modular converter, battery electric quantity measurement module, STM32F103 main control MCU module is connected with serial ports bluetooth module, battery charging and discharging managing chip in lithium cell charging module selects TP4057 chip, it includes charging current watch-dog, automatically recharge, two instruction chargings terminate the status pin accessed with input voltage；Its working range is very suitable for single-unit lithium ion battery, inside it, coulometer measuring device is responsible for being integrated the electric current of the detection resistor flowed through between battery positive and load calculating accurately, measure electric charge and be stored in its internal register, with I2C interface to its access and configuration.
As shown in Figure 3: lithium battery voltage modular converter includes boost converter chips the 201, the 4th filter capacitor 202, power inductance the 203, the 5th filter capacitor the 204, the 6th filter capacitor the 205, the 7th filter capacitor 206,
nullNo. 5 pins of boost converter chips 201 connect lithium battery anode、One end of power inductance 203 and one end of the 4th filter capacitor 202，One termination GND end of the 4th filter capacitor 202，No. 4 pins of boost converter chips 201 connect GND end，No. 3 pins of boost converter chips 201 connect the other end of power inductance 203，No. 2 pins of boost converter chips 201 connect one end of the 6th filter capacitor 205 and the 7th filter capacitor 206、No. 10 pins of boost converter chips 201，Another termination GND end of 6th filter capacitor 205 and the 7th filter capacitor 206，No. 1 pin of boost converter chips 201 connects one end of the 5th filter capacitor 204，Another termination GND end of 5th filter capacitor 204，No. 9 pins of boost converter chips 201 connect GND end，No. 6 pins of boost converter chips 201、No. 7 pins、No. 8 pins connect the anode of lithium battery.Lithium battery voltage can be promoted to 5V by lithium battery voltage modular converter, it is thus possible to power to more easily modular converter, MCU module, wireless data transceiver module, what avoid lithium battery voltage changes the interference to whole device, both the use specification of the lithium battery to small portable had been met, stable output voltage can be provided again, reduce by the factors such as circuit voltage cause to negative effect produced by electrocardiosignal, thus having ensured the accurate of electrocardiosignal and stability so that the result of monitoring and display synchronizes and accurate；
Described lithium battery voltage modular converter also includes TPS73233 chip, TPS73225 chip and TPS60403 chip, for respectively lithium battery voltage being converted into 3.3V, 2.5V,-2.5V, TPS73225 chip and TPS60403 chip provide bipolar voltage for ADS1298 modular converter, simultaneously TPS73233 chip is MCU module and wireless data transceiver module is powered
As shown in Figure 5: described battery electric quantity measurement module includes second 402, diode 403 of current-limiting resistance the 401, second filter capacitor, 404, No. two diodes 405 of switch key, lithium battery socket the 406, the 3rd filter capacitor the 407, the 4th resistance 408, management of charging and discharging chip the 409, first discharge and recharge indication LED lamp the 410, second discharge and recharge indication LED lamp 411
nullNo. 4 pins of management of charging and discharging chip 409 connect USB5V end，No. 3 pins of management of charging and discharging chip 409 connect one end of No. two diodes 405 and one end of lithium battery socket 406，No. 2 pins of management of charging and discharging chip 409 connect GND end，One end of one termination the second filter capacitor 402 of two current-limiting resistances 401，Another of two current-limiting resistances 401 terminates one end of the first discharge and recharge indication LED lamp 410 and the second discharge and recharge indication LED lamp 411，Another termination GND end of second filter capacitor 402，One termination USB5V end of a number diode 403，Another termination switch key 404 of a number diode 403 and one end of No. two diodes 405，Another termination VCC end of switch key 404，No. 3 pins of one termination management of charging and discharging chip 409 of the 3rd filter capacitor 407、One end of one end of lithium battery socket and No. two diodes 405，No. 6 pins of one termination management of charging and discharging chip 409 of the 4th resistance 408，Another termination GND end of 4th resistance 408，No. 1 pin of another termination management of charging and discharging chip 409 of the first discharge and recharge indication LED lamp 410，No. 5 pins of another termination management of charging and discharging chip 409 of the second discharge and recharge indication LED lamp 411.
Set of cells can be charged by lithium cell charging management module, can observe intuitively simultaneously and charge or have been filled with two states, and the use of lithium battery also makes that this device is repeatable repeatedly to be used, and makes device more convenient and hommization.
Described wireless data transceiver module serial ports bluetooth module, described data receiver display is Intelligent mobile equipment such as smart mobile phone, smart mobile phone is provided with client modules, described client modules includes data receipt unit, data display unit, data analysis unit and data storage cell, data receipt unit, data display unit, data analysis unit are connected mutually with data storage cell, serial ports bluetooth module and MCU module communication connection, data receipt unit is connected by bluetooth communication with serial ports bluetooth module
The data that data receipt unit sends for receiving radio data transceiver module；
Data display unit displays for the screen that the data received call smart mobile phone；
Information data, for the data received carry out intelligence pathological analysis, is returned data display unit after being reached a conclusion by analysis by data analysis unit；
Data storage cell is for storing the data received.
As shown in Figure 4: described serial ports bluetooth module includes serial ports Bluetooth chip the 301, the 3rd electric capacity the 302, the 3rd resistance 303, touch key 304, current-limiting resistance 305, bluetooth display lamp 306 and the first filter capacitor 307,
nullWherein: No. 2 pins of serial ports Bluetooth chip 301 connect TXD end、No. 4 pins connect RXD end、No. 9 pins connect 3.3V end、No. 12 pins connect GND end，No. 16 pins of one termination serial ports Bluetooth chip 301 of the 3rd electric capacity 302，Another terminates GND end，No. 16 pins of one termination serial ports Bluetooth chip 301 of the 3rd resistance 303，One end of another termination touch key 304 of the 3rd resistance 303，Another termination 3.3V end of touch key 304，No. 15 pins of one termination serial ports Bluetooth chip 301 of current-limiting resistance 305，One end of another termination bluetooth display lamp 306 of current-limiting resistance 305，Another termination GND end of bluetooth display lamp 306，One termination GND end of the first filter capacitor 307，Another termination 3.3V end of first filter capacitor 307，Described serial ports Bluetooth chip is HM-11 bluetooth 4.0 chip，Described bluetooth display lamp and touch key are arranged in housing outer surface，HM-11 bluetooth 4.0 chip is serially connected with bluetooth display lamp and bluetooth touch key，The RXD pin of HM-11 bluetooth 4.0 chip is connected to the USART serial ports of MCU module in succession.Visible above-mentioned attachment structure simplifies serial ports bluetooth module circuit, remain the most basic function of serial ports Bluetooth circuit, the quality ensureing transmission simplifies the circuit of whole system, save the electricity of set of cells, improve ease for use and the ruggedness of this device, also reduce the Large Copacity demand to battery apparatus such that it is able to meet and small and exquisite design easily, thus significantly highlighting feature and the advantage of this device further.
Therefore, the ecg signal data of the measured collected by front termination electrode sends to the smart mobile phone of measured eventually through serial ports bluetooth module, client modules carries out display directly perceived, real-time synchronization, and by the electrocardiosignal information of measured, draw according to relevant scientific analysis and analyze result accordingly, analysis result feedback is shown on client modules, and the ecg signal data information of client modules record this time measured can be passed through, realize intelligent management, improve the interactive experience of user, fundamentally effectively help user.
Embodiment 3: be distinctive in that with embodiment 2 and serial ports bluetooth module is replaced to serial ports Wi-Fi module, Intelligent mobile equipment is panel computer.Panel computer can demonstrate real-time waveform according to the ecg information of measured, waveform can carry out anomaly analysis, mobile phone EMS memory card can also be saved in, the AD conversion chip data processing speed that this device adopts is fast, its sample frequency is 250SPS～32kSPS, and the display of 12 ecg wave forms is the real-time reflection of electrocardiosignal.
It should be appreciated that the above-mentioned detailed description of the invention of the present invention is used only for exemplary illustration or explains principles of the invention, and it is not construed as limiting the invention.Therefore, any amendment of making when without departing from the spirit and scope of the present invention, equivalent replacement, improvement etc., should be included within protection scope of the present invention.Additionally, claims of the present invention be intended to fall in the equivalents on scope and border or this scope and border whole change and modifications example.
Claims (10)
1. a portable 12 lead electrocardiosignal synchronous acquisition device, it is characterized in that, including: housing, conducting wire, for several electrodes of the body that leads, the switch key being placed on housing, be placed in the modular converter of enclosure interior, MCU module, wireless data transceiver module, set of cells and data receiver display
Wherein: the front end of conducting wire connects the input of the rear end connection modular converter of electrode, conducting wire, the communication ends of modular converter is connected with communication ends and the control end of MCU module with controlling end, the serial ports of MCU module is connected with the input of wireless data transceiver module, and set of cells connecting valve post-positioned press keys provides power supply for modular converter, MCU module and wireless data transceiver module in housing；Wireless data transceiver module wireless connection data receives display；
Described modular converter is the ADS1298 modular converter of 24 high-precision A/D, ADS1298 modular converter sets the Differential Input mouth of ADS1298 conversion chip, eight passages, the electrocardiosignal that the Differential Input mouth of eight passages gathers for input front end electrode, the built-in EMI filter circuit of ADS1298 conversion chip, 8 road programmable gain amplifiers, right leg drive amplifying circuit and Wilson's central electric terminal and spi bus configuration acquisition channel, spi bus configuration acquisition channel connects MCU module；
Described ADS1298 modular converter also includes ECG signal processing circuit, described ECG signal processing circuit includes the first resistance, second resistance, a number clamper limiter diode, No. two clamper limiter diodes, a number electric capacity and No. two electric capacity, one end of first resistance is connected with the outfan of electrode, one end of the other end of the first resistance and one end of the second resistance and an electric capacity is connected, the other end of the second resistance respectively with one end of No. two electric capacity, one end of a number clamper limiter diode, one end of No. two clamper limiter diodes is connected with the input of a passage of ADS1298 conversion chip, the other end of a number electric capacity and No. two electric capacity connects AGND end respectively, another termination AVDD end of a number clamper limiter diode, another termination AVSS end of No. two clamper limiter diodes.
2. the portable 12 lead electrocardiosignal synchronous acquisition device of one according to claim 1, it is characterised in that described MCU module includes STM32F103 single-chip microcomputer, chip crystal oscillating circuit, reset circuit, the electric source filter circuit powered for STM32F103 single-chip microcomputer and connects the GPIO port of STM32F103 single-chip microcomputer, SPI interface and USART serial ports respectively.
3. the portable 12 lead electrocardiosignal synchronous acquisition device of one according to claim 1, it is characterized in that described set of cells includes: lithium battery, lithium cell charging module, lithium battery voltage modular converter, battery electric quantity measurement module, lithium cell charging module is connected with lithium battery voltage modular converter, battery electric quantity measurement module is connected with MCU module, and lithium battery voltage modular converter is connected with ADS1298 modular converter, battery electric quantity measurement module, MCU module and wireless data transceiver module respectively.
4. the portable 12 lead electrocardiosignal synchronous acquisition device of one according to claim 3, it is characterized in that described lithium battery voltage modular converter includes boost converter chips, the 4th filter capacitor, power inductance, the 5th filter capacitor, the 6th filter capacitor, the 7th filter capacitor
Boost converter chips connects lithium battery anode, one end of power inductance and one end of the 4th filter capacitor, one termination GND end of the 4th filter capacitor, one pin of boost converter chips connects GND end, one pin of boost converter chips connects the other end of power inductance, one pin of boost converter chips connects one end of the 6th filter capacitor and the 7th filter capacitor, another termination GND end of 6th filter capacitor and the 7th filter capacitor, one pin of boost converter chips connects one end of the 5th filter capacitor, another termination GND end of 5th filter capacitor, one pin of boost converter chips connects GND end, one pin of boost converter chips connects the anode of lithium battery.
5. the portable 12 lead electrocardiosignal synchronous acquisition device of one according to claim 3 or 4, it is characterized in that described lithium battery voltage modular converter also includes photovoltaic conversion chip, for respectively lithium battery voltage being converted into 3.3V, 2.5V,-2.5V, 2.5V and-2.5V provides bipolar voltage for ADS1298 modular converter, and 3.3V powers for MCU module and wireless data transceiver module again simultaneously.
6. the portable 12 lead electrocardiosignal synchronous acquisition device of one according to claim 5, it is characterized in that described battery electric quantity measurement module includes the second current-limiting resistance, the second filter capacitor, diode, switch key, No. two diodes, lithium battery socket, the 3rd filter capacitor, the 4th resistance, management of charging and discharging chip, the first discharge and recharge indication LED lamp, second discharge and recharge indication LED lamps
nullManagement of charging and discharging chip connects USB5V end，One pin of management of charging and discharging chip connects one end of No. two diodes and one end of lithium battery socket，One pin of management of charging and discharging chip connects GND end，One end of one termination the second filter capacitor of two current-limiting resistances，Another of two current-limiting resistances terminates the first discharge and recharge indication LED lamp and one end of the second discharge and recharge indication LED lamp，Another termination GND end of second filter capacitor，One termination USB5V end of a number diode，Another termination switch key of a number diode and one end of No. two diodes，Another termination VCC end of switch key，One pin of one termination management of charging and discharging chip of the 3rd filter capacitor、One end of one end of lithium battery socket and No. two diodes，One pin of one termination management of charging and discharging chip of the 4th resistance，Another termination GND end of 4th resistance，One pin of another termination management of charging and discharging chip of the first discharge and recharge indication LED lamp，One pin of another termination management of charging and discharging chip of the second discharge and recharge indication LED lamp.
7. the portable 12 lead electrocardiosignal synchronous acquisition device of one according to claim 1, it is characterized in that described wireless data transceiver module is serial ports Wi-Fi module or serial ports bluetooth module, described data receiver display is Intelligent mobile equipment, and described Intelligent mobile equipment is smart mobile phone or panel computer, notebook computer.
8. the portable 12 lead electrocardiosignal synchronous acquisition device of one according to claim 7, it is characterized in that described Intelligent mobile equipment is provided with client modules, described client modules includes data receipt unit, data display unit, data analysis unit and data storage cell, data receipt unit, data display unit, data analysis unit are connected mutually with data storage cell, serial ports bluetooth module and MCU module communication connection, data receipt unit is connected by bluetooth communication with serial ports bluetooth module
The data that data receipt unit sends for receiving radio data transceiver module；
Data display unit displays for the screen that the data received call Intelligent mobile equipment；
Information data, for the data received carry out intelligence pathological analysis, is returned data display unit after being reached a conclusion by analysis by data analysis unit；
Data storage cell is for storing the data received.
9. the portable 12 lead electrocardiosignal synchronous acquisition device of one according to claim 7 or 8, it is characterized in that described serial ports bluetooth module includes serial ports Bluetooth chip, the 3rd electric capacity, the 3rd resistance, touch key, current-limiting resistance, bluetooth display lamp and the first filter capacitor
nullWherein: serial ports Bluetooth chip pin connect TXD end、Another pin connects RXD end、Another pin connects 3.3V end、Another pin connects GND end，One pin of one termination serial ports Bluetooth chip of the 3rd electric capacity，Another terminates GND end，One pin of one termination serial ports Bluetooth chip of the 3rd resistance，One end of another termination touch key of the 3rd resistance，Another termination 3.3V end of touch key，One pin of one termination serial ports Bluetooth chip of current-limiting resistance，One end of another termination bluetooth display lamp of current-limiting resistance，Another termination GND end of bluetooth display lamp，One termination GND end of the first filter capacitor，Another termination 3.3V end of first filter capacitor，Described serial ports Bluetooth chip is HM-11 bluetooth 4.0 chip，Described bluetooth display lamp and touch key are arranged in housing outer surface，HM-11 bluetooth 4.0 chip is serially connected with bluetooth display lamp and bluetooth touch key，The RXD pin of HM-11 bluetooth 4.0 chip is connected to the USART serial ports of MCU module in succession.
10. the portable 12 lead electrocardiosignal synchronous acquisition device of one according to claim 6, it is characterized in that described lithium cell charging module selects TP4057 chip, described battery electric quantity measurement module selects LTC2941 chip and with I2C interface to its access and configuration.
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