CN204192611U - A kind of wireless remote multi-user electrocardiogram monitor system - Google Patents
A kind of wireless remote multi-user electrocardiogram monitor system Download PDFInfo
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- CN204192611U CN204192611U CN201420663764.4U CN201420663764U CN204192611U CN 204192611 U CN204192611 U CN 204192611U CN 201420663764 U CN201420663764 U CN 201420663764U CN 204192611 U CN204192611 U CN 204192611U
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Abstract
This utility model discloses a kind of wireless remote multi-user electrocardiogram monitor system, and its system is primarily of long distance monitoring station, local reception end and at least one portable ecg monitor composition.Portable ecg monitor carries out heart real time monitoring to user, obtains user's heart real time signal.The institute that local reception termination receives portable ecg monitor surveys electrocardiogram (ECG) data, and carries out automatic diagnosis analysis to it, can sound and SMS alarm during appearance exception.Meanwhile, data can be sent to long distance monitoring station by the Internet by local reception end, carry out artificial diagnostic analysis, realize real-time remote monitoring to surveyed electrocardiogram (ECG) data.This utility model can the electrocardiosignal of supervisory user whenever and wherever possible, and carries out tentative diagnosis in real time, for treatment is given security in time; Remote diagnosis can be carried out to patient like this, give warning in advance, for patient strives for treatment time, reduce state of an illness occasionality and the sudden danger brought.
Description
Technical field
This utility model relates to cardioelectric monitor technical field, is specifically related to a kind of wireless remote multi-user electrocardiogram monitor system.
Background technology
In modern society, with the quickening pace of modern life and the increase of operating pressure, the prevalence of cardiovascular disease, sickness rate and mortality rate are constantly in the trend risen, 2008 " China Health career development situation statistical communique " shows, the death toll that cardiovascular disease causes has accounted for 40.27% of the total death toll in the whole nation, and these data are just in cumulative year after year.Meanwhile, China marches toward aging society, and cardiovascular disease frequently-occurring disease is in middle-aged and elderly people, and heart disease is chronic disease, has for a long time in spite of illness, the feature of acute onset.According to Ministry of Public Health data center of China statistics, the cardiac of more than 70% is sudden onset socially or in family, and most people die from outside hospital because losing rescue time.If these patients can obtain Rescue and nurse timely, be probably avoid death.Therefore, many people had regular physical checkups and long-term or even lifelong cardiac monitoring is carried out to heart patient be very important.
For sub-health population, cardioelectric monitor is also necessary.Common electrocardiograph can only obtain the electrocardiogram of very short time, can be used for diagnosing the heart disease having become normality, then substantially helpless for arrhythmia sporadic often.Meanwhile, the bedside electrocardiogram monitor used in hospital ward adopts 12 to lead, although can carry out more detailed detection to patient, need patient to lie flat on the bed during acquired signal, limit the activity of patient, inconvenience is monitored for a long time.In addition, statistical data also shows, and due to psychology or pressure environmentally, has quite a few patient data measured in the hospital data measured and the environment of living at ordinary times to have this qualitative difference, affects the diagnosis of disease.Therefore, need a kind of low cost, low-power consumption, miniaturization, portable cardiac monitoring equipment, utilize current day by day universal network technology and wireless communication technology can carry out Remote Dynamic real-time monitoring to patient.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of wireless remote multi-user electrocardiogram monitor system, and it can the electrocardiosignal of supervisory user whenever and wherever possible, and carries out tentative diagnosis in real time, for treatment is given security in time.
For solving the problem, this utility model is achieved through the following technical solutions:
A kind of wireless remote multi-user electrocardiogram monitor system, primarily of long distance monitoring station, local reception end and at least one portable ecg monitor composition;
Above-mentioned portable ecg monitor comprises electrode slice, electrocardio conditioning module, 2 analog-to-digital conversion modules, 2 processors, memory module, display module, wireless transmission emitter and power modules; Electrode slice and human body are affixed, and the outfan of electrode slice connects the input of electrocardio conditioning module through electrode wires, the outfan of electrocardio conditioning module is divided into 2 tunnels; Wherein a road i.e. the first path connects the input of first processor through the first analog-to-digital conversion module, and the outfan of first processor connects memory module and display module simultaneously; Another road and alternate path connect the input of the second processor through the second analog-to-digital conversion module, and the outfan of the second processor connects wireless transmission emitter; Power module is provided with gauge tap, and this gauge tap has 3 key switches and binary channel switch, the first channel selector and alternate path switch; An outfan of power module connects first processor, and another outfan of power module connects the second processor;
Above-mentioned local reception end comprises radio transceiver device, local host computer and local network interface card; The wireless transmission emitter of radio transceiver device wireless connections portable ecg monitor, the outfan of radio transceiver device connects local host computer, and the outfan of local host computer connects local network interface card;
Above-mentioned long distance monitoring station comprises long-range network interface card and long-range host computer; Long-range network interface card is crossed netting twine with the LAN cartoon of local reception end and is connected, and the outfan of long-range network interface card connects long-range host computer.
In such scheme, electrocardio conditioning module comprises driven-right-leg circuit, buffer circuit, pre-amplification circuit, bandwidth-limited circuit, trap circuit, main amplifying circuit and level lifting circuit; Driven-right-leg circuit is all connected with electrode slice with buffer circuit, the input of driven-right-leg circuit connects the common mode electrical level of pre-amplification circuit, the outfan of buffer circuit connects the data input pin of pre-amplification circuit, the data output end of pre-amplification circuit connects the input of trap circuit through bandwidth-limited circuit, the outfan of trap circuit connects the input of level lifting circuit through main amplifying circuit, the outfan of level lifting circuit connects the input of the first analog-to-digital conversion module and the second analog-to-digital conversion module simultaneously.
In such scheme, wireless transmission emitter is ZigBee emitter, and radio transceiver device is ZigBee receptor.
In such scheme, local reception end also comprises short message alarm module further, and this short message alarm module is connected on local host computer.
Compared with prior art, Modern transmission technology combines with medical science and technology by this utility model, whenever and wherever possible the electrocardiosignal of supervisory user, and carries out tentative diagnosis in real time, for treatment is given security in time; Remote diagnosis can be carried out to patient like this, give warning in advance, for patient strives for treatment time, reduce state of an illness occasionality and the sudden danger brought; Carry out in the environment that long distance monitoring can be familiar with patient, alleviate the mental pressure of patient, improve the accuracy of diagnosis; To the long distance monitoring of healthy population, the early stage disease of disease can be found, understand the electrocardio situation of self in real time, thus reach health care and prophylactic object; Multi-user's cardioelectric monitor and the automatic tentative diagnosis function of software, can increase Hospital Physical Examination efficiency; Low cost, low-power consumption, miniaturization, portable, little on the impact of user's daily life; Dual processor, respectively to analogue signal sampling and storage, reduces time delay and the error of signal, increases electrocardiosignal measurement accuracy, can contrast simultaneously and avoid mistaken diagnosis.
Accompanying drawing explanation
Fig. 1 is a kind of theory diagram of wireless remote multi-user electrocardiogram monitor system.
Fig. 2 is the theory diagram of electrocardio conditioning module in Fig. 1.
Detailed description of the invention
A kind of wireless remote multi-user electrocardiogram monitor system, as shown in Figure 1, primarily of portable ecg monitor, local reception end and long distance monitoring station composition.The number of portable ecg monitor sets according to number of users, and all portable ecg monitors are all connected with long distance monitoring station with a local reception end.
Portable ecg monitor comprises electrode slice, electrocardio conditioning module, 2 analog-to-digital conversion modules, 2 processors, memory module, display module, wireless transmission emitter and power modules.Electrode slice and human body are affixed, and the outfan of electrode slice connects the input of electrocardio conditioning module through electrode wires, the outfan of electrocardio conditioning module is divided into 2 tunnels.Wherein a road i.e. the first path connects the input of first processor through the first analog-to-digital conversion module, and the outfan of first processor connects memory module and display module simultaneously.Another road and alternate path connect the input of the second processor through the second analog-to-digital conversion module, and the outfan of the second processor connects wireless transmission emitter.Power module is provided with gauge tap, and this gauge tap has 3 key switches and binary channel switch, the first channel selector and alternate path switch.An outfan of power module connects first processor, and another outfan of power module connects the second processor.
Local reception end comprises radio transceiver device, local host computer and local network interface card.The wireless transmission emitter of radio transceiver device wireless connections portable ecg monitor, the outfan of radio transceiver device connects local host computer, and the outfan of local host computer connects local network interface card.In addition, in order to realize SMS alarm function, local reception end also comprises short message alarm module further, and this short message alarm module is connected on local host computer.
Long distance monitoring station comprises long-range network interface card and long-range host computer.Long-range network interface card is crossed netting twine with the LAN cartoon of local reception end and is connected, and the outfan of long-range network interface card connects long-range host computer.
The electrocardiosignal that electrode wires transmits by portable ecg monitor sends into electrocardio conditioning module, carries out amplification filtering; The analog electrocardiogram signal collected is divided into two passages to send in two processors after analog digital conversion, and first processor controls storage module and display module, and the second processor controls wireless transmission emitter; Three-way switch controls power module and powers to circuit, can realize single channel 1, single channel 2, the dual pathways three kinds of mode of operations.After the communication sink of local host computer receives the signal that multiple monitor sends, transfer signals in local host computer by USB line, signal is after local host computer process, be reduced to the ecg wave form of user, and carry out real-time automatic diagnosis and warning, simultaneously by the Internet transmission in the long-range host computer at long distance monitoring station.Long-range host computer carries out display to the signal that local host computer cannot be diagnosed provides doctor artificially to diagnose.
Below the main hardware of native system is formed and is further detailed:
1, electrode slice, same as the prior art, employing prior art has user's cardioelectric monitor that electrode slice carries out.In the electrode wires of cardiac diagnosis lead-line and connection electrode sheet and electrocardio conditioning module, owing to being will monitor in the daily life of patient, in order to avoid having influence on the daily routines of patient, employing standard three is led connected mode by native system.
2, electrocardio conditioning module, as shown in Figure 2, system utilizes the various interference of electrocardio modulate circuit filtering, from interference, extract electrocardiosignal, then electrocardiosignal is amplified to the size be convenient to us and observed and process.Electrocardio conditioning module comprises driven-right-leg circuit, buffer circuit, pre-amplification circuit, bandwidth-limited circuit, trap circuit, main amplifying circuit and level lifting circuit.Driven-right-leg circuit is all connected with electrode slice with buffer circuit, the input of driven-right-leg circuit connects the common mode electrical level of pre-amplification circuit, the outfan of buffer circuit connects the data input pin of pre-amplification circuit, the data output end of pre-amplification circuit connects the input of trap circuit through bandwidth-limited circuit, the outfan of trap circuit connects the input of level lifting circuit through main amplifying circuit, the outfan of level lifting circuit connects the input of the first analog-to-digital conversion module and the second analog-to-digital conversion module simultaneously.
Buffer circuit adopts low-power consumption, low noise OPA2333 chip.Electrocardiosignal has larger input impedance after buffer circuit, improves the capacity of resisting disturbance of circuit; Simultaneous buffering circuit plays the buffer action between human body and circuit.
Driven-right-leg circuit is requisite ingredient in ECG's data compression module.Its input signal takes from the common mode electrical level of pre-amplification circuit, and right like this lower limb electrode is not directly connected with earth terminal, improves the common mode inhibition capacity of system, and effectively can suppress the sudden change of body voltages pulse.
Pre-amplification circuit, instrument amplifier INA333 is used owing to having the features such as low imbalance, low noise, high cmrr, the linear scope of wide input and output, low quiescent current.Consider the factor such as system noise and electrocardiosignal amplitude, and self-excitation appears in anti-locking system, design pregain is 6 times.
Bandwidth-limited circuit, because electrocardiosignal mainly concentrates on the frequency band range of 0.3 ~ 110Hz, the out-of-band noise of filtering 0.3 ~ 110Hz wanted by the band filter of design.Consider device error, the high pass cut off frequency of band filter is designed to 0.1Hz, and low-pass cut-off frequencies is 120Hz.
Trap circuit, in the measurement of ECG signal, 50Hz Hz noise is the main interference source of signal, although employ right leg drive, still has part 50Hz Hz noise to enter circuit with the form of difference mode signal.Therefore, in order to effective filtering Hz noise, special circuit must be adopted to carry out filtering to Hz noise.Native system have employed double T trap circuit.
Main amplifying circuit and level lifting circuit, ECG signal amplitude is about 0 ~ 4mV, and the input request signal 0 ~ 3.3V of analog-digital converter, therefore, the amplification of whole ECG signal circuit requires about 825 times, and enlarge leadingly multiple is 6 times, and the existence of actual filter circuit necessarily decays and is level lifting circuit headspace below, and amplification Preliminary design at the corresponding levels is about 100 times.Adding level lifting circuit is for A/D converter is considered.
3, analog-to-digital conversion module, 12 ADC that native system adopts STM32L152RB and CC2530 inner integrated separately, according to nyquist sampling theorem, sample frequency should be more than or equal to the twice being sampled signal highest frequency, in order to avoid the aliasing of signal generation frequency spectrum after sampling.Therefore, sample frequency is set to 200Hz respectively, select AVDD=3.3V as the datum of ADC, transformation result is respectively: ADC=(VIN × 4096)/3.3; ADC=(VIN × 2048)/3.3 (in CC2530,12 ADC lack one).What native system adopted is the mode of timer interruption, needs to close interrupt control unit, in order to avoid produce multiple interruption and cause disorder when entering interrupt routine.
4, processor, the electrocardiosignal that body surface obtains is after the amplification of electrocardio conditioning module and Filtering Processing, and the input end of analog signal mouth can delivering to processor carries out analog digital conversion.Native system adopts STM32L152RB and CC2530 respectively as first processor and the second processor.
5, display module, in order to meet the requirement of monitor low-voltage and low-power dissipation, display module adopts 2.4V-3.6V low-power consumption LCD, and when backlight is closed, power consumption is only 10mW, be connected with processor by four line SPI, by the digital ecg wave form after analog digital conversion in liquid crystal screen display.
6, memory module, because single-chip microcomputer memory buffer is little, easily causes loss of data.Therefore native system uses Micro SD card to store data, is write by SPI mouth.Write Micro SD card while electrocardiogram (ECG) data display, ensureing when ZigBee module is closed also can storage data, so that follow-up reading is diagnosed.Capacity is the Micro SD card of 8G, in the cardiac monitoring of 200Hz sample rate, can preserve the data of a couple of days continuously, thus ensures the reliability of wireless transmission in long-term monitoring.
7, wireless transport module (i.e. wireless communication module emitter and receptor), based on requirements such as low cost, low-power consumption, network capacity are large, wireless communications mode native system adopts ZigBee, the more important thing is from the viewpoint of reliability.Signal transmits in wireless environments, will inevitably there is the problems such as large scale decline, shadow fading, multipath and interference.ZigBee, bluetooth and WLAN (IEEE 802.11b) work in 2.4GHz ISM band, and mutual interference is inevitable, therefore ensure that reliability is particularly important.Experiment shows the bit error rate of IEEE 802.15.4/ZigBee, particularly 10-9 can be reached when signal to noise ratio is 4dB, reach the same bit error rate, bluetooth/802.15.1 signal to noise ratio will reach 16dB, 802.11b reach 10dB, visible, the interference free performance of ZigBee, apparently higher than bluetooth and WLAN technology, has better reliability.In this utility model, wireless transmission emitter is ZigBee emitter, and radio transceiver device is ZigBee receptor.
Adopt star network topology between multiple portable ecg monitor and local reception end in system, many-to-one transmitting-receiving structure can be realized.This network structure is made up of a PAN coordinator node and multiple terminal node, all Star Networks and other Star Network independent operating all separately.When coordinator powers on, he just sets up oneself a network, can be realized the uniqueness of this Star Network by PAN identifier.After selected PAN identifier, PAN coordinator just can allow other-end to join in this network.
8, short message alarm module, in order to not affect other life and work of user family members or doctor, native system adds short message alarm module, makes user family members or doctor can receive abnormality alarm in any place.Short message alarm module uses GSM, with exterior PC is connected after turning USB interface by UART interface, receives the AT order that PC software system sends.
Claims (4)
1. a wireless remote multi-user electrocardiogram monitor system, is characterized in that: primarily of long distance monitoring station, local reception end and at least one portable ecg monitor composition;
Above-mentioned portable ecg monitor comprises electrode slice, electrocardio conditioning module, 2 analog-to-digital conversion modules, 2 processors, memory module, display module, wireless transmission emitter and power modules; Electrode slice and human body are affixed, and the outfan of electrode slice connects the input of electrocardio conditioning module through electrode wires, the outfan of electrocardio conditioning module is divided into 2 tunnels; Wherein a road i.e. the first path connects the input of first processor through the first analog-to-digital conversion module, and the outfan of first processor connects memory module and display module simultaneously; Another road and alternate path connect the input of the second processor through the second analog-to-digital conversion module, and the outfan of the second processor connects wireless transmission emitter; Power module is provided with gauge tap, and this gauge tap has 3 key switches and binary channel switch, the first channel selector and alternate path switch; An outfan of power module connects first processor, and another outfan of power module connects the second processor;
Above-mentioned local reception end comprises radio transceiver device, local host computer and local network interface card; The wireless transmission emitter of radio transceiver device wireless connections portable ecg monitor, the outfan of radio transceiver device connects local host computer, and the outfan of local host computer connects local network interface card;
Above-mentioned long distance monitoring station comprises long-range network interface card and long-range host computer; Long-range network interface card is crossed netting twine with the LAN cartoon of local reception end and is connected, and the outfan of long-range network interface card connects long-range host computer.
2. a kind of wireless remote multi-user electrocardiogram monitor system according to claim 1, it is characterized in that: electrocardio conditioning module comprises driven-right-leg circuit, buffer circuit, pre-amplification circuit, bandwidth-limited circuit, trap circuit, main amplifying circuit and level lifting circuit; Driven-right-leg circuit is all connected with electrode slice with buffer circuit, the input of driven-right-leg circuit connects the common mode electrical level of pre-amplification circuit, the outfan of buffer circuit connects the data input pin of pre-amplification circuit, the data output end of pre-amplification circuit connects the input of trap circuit through bandwidth-limited circuit, the outfan of trap circuit connects the input of level lifting circuit through main amplifying circuit, the outfan of level lifting circuit connects the input of the first analog-to-digital conversion module and the second analog-to-digital conversion module simultaneously.
3. a kind of wireless remote multi-user electrocardiogram monitor system according to claim 1, it is characterized in that: wireless transmission emitter is ZigBee emitter, radio transceiver device is ZigBee receptor.
4. a kind of wireless remote multi-user electrocardiogram monitor system according to claim 1, it is characterized in that: local reception end also comprises short message alarm module further, this short message alarm module is connected on local host computer.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104287722A (en) * | 2014-11-07 | 2015-01-21 | 桂林电子科技大学 | Wireless remote multi-user electrocardiograph monitoring system and method |
| CN108371117A (en) * | 2018-04-23 | 2018-08-07 | 佛山科学技术学院 | A kind of herding chewing detecting system based on wireless technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104287722A (en) * | 2014-11-07 | 2015-01-21 | 桂林电子科技大学 | Wireless remote multi-user electrocardiograph monitoring system and method |
| CN108371117A (en) * | 2018-04-23 | 2018-08-07 | 佛山科学技术学院 | A kind of herding chewing detecting system based on wireless technology |
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Granted publication date: 20150311 Termination date: 20201107 |
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