CN101791250A - Remote medical service system with diagnosis terminal adopting WLAN standard and method thereof - Google Patents
Remote medical service system with diagnosis terminal adopting WLAN standard and method thereof Download PDFInfo
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Abstract
The invention discloses a remote medical service system, which comprises a portable medical treatment apparatus, a handheld diagnosis terminal, a remote medical server and a wireless access point. The portable medical treatment apparatus is used for collecting patient information, the handheld diagnosis terminal is used for transmitting diagnosis information, and the remote medical server is used for storing patient information and diagnosis information. In the technical scheme, the portable medical treatment apparatus is connected with the remote medical server through a network; the handheld diagnosis terminal is connected with the remote medical server through a network after communication with the wireless access point; the patient information collected by the portable medical treatment apparatus is stored by the remote medical server and is then transmitted to the handheld diagnosis terminal; and the handheld diagnosis terminal receives the patient information and transmits the diagnosis information, and the diagnosis information is stored by the remote medical server and is then transmitted to the portable medical treatment apparatus. The system of the invention can greatly improve the diagnosis convenience for the doctor, and enhance the diagnosis efficient for the doctor. Moreover, the visit of patients and the diagnosis of doctors can be of mobile type, the two-way communication between doctors and patients can be realized, and clinical diagnosis can be performed in any place and at any time without limitation of the hospital.
Description
Technical field
The invention belongs to the tele-medicine technical field, be specifically related to remote medical service system and remote medical service method that a kind of diagnosis terminal that utilizes network to carry out the tele-medicine service adopts wlan standard.
Background technology
China's region broadness, medical level have tangible regional difference, particularly vast rural area and outlying district, and medical skill is relatively backward.Address this problem, adopt the tele-medicine technology necessary.The Telemedicine System that has developed both at home and abroad comprises that TV monitoring, telephone remote diagnosis obtain certain application at present.Increasing hospital has developed the hospital management system of oneself, and hospital server is set in the hospital management system, and described hospital server and diagnosis terminal are connected to form the LAN that can transmit diagnoses and treatment information mutually.Yet, surpass the medical services that to be correlated with in hospital's scope owing to be wired connection between hospital server and the diagnosis terminal; Hub, the switch that need be correlated with of wired connection in addition, the interface of these equipment is limited, though can add device extension, this all can increase the cost of hospital; And also can't carry out the mutual of diagnostic message with diagnosis terminal that hospital server is not connected.
Also develop some system such as Chinese patent application CN101491431 that utilize the Internet to carry out the tele-medicine service in the prior art and disclose a kind of Telemedicine System on July 29th, 2009, comprise portable medical instrument, hospital's wireless telecommunications system, hospital's medical server and the diagnosis terminal that to wear in human body, described medical instrument is worn on human body and gathers somatic data, and sends to hospital's wireless telecommunications system by wireless communication mode; Hospital's wireless telecommunications system sends the data that receive to the hospital medical server; Hospital's medical server sends data to the diagnosis terminal.The medical instrument of these Telemedicine System and hospital's communication apparatus wireless telecommunications, though solved the problem that it is difficult that the user seeks medical advice to a certain extent, yet basically, the diagnosis terminal still need with hospital server together, the doctor still is confined to bring some inconvenience to medical personnel in hospital or hospital's communication apparatus or the certain zone.
Along with the continuous development and the maturation of current wireless technology, WiFi (WirelessFidelity, Wireless Fidelity) technology is applied in all trades and professions as a most popular technology of current wireless domain.It uses the communication of TCP standard, and technology maturation is reliable, and transfer rate is fast, and the user acceptance level is the highest, and used frequency range need not permission, and freely use in the whole world, is the preferred option of regional wireless telecommunications.The present invention researchs and develops new remote medical service system according to these technology makes the doctor can be more extensive and terminal diagnostics more easily.
Summary of the invention
The object of the invention is to provide a kind of remote medical service system, has solved when making things convenient for the patient to seek medical advice in the prior art, does not improve medical personnel's problems such as convenience.
In order to solve these problems of the prior art, technical scheme provided by the invention is:
A kind of remote medical service system, comprise the remote medical server of the portable medical instrument of being responsible for gathering patient information, the handheld type diagnosis terminal that sends diagnostic message and storage patient information and diagnostic message, described portable medical instrument is connected with the remote medical server network; It is characterized in that described system also comprises the WAP that is connected with remote medical server, described handheld type diagnosis terminal by with the WAP communication after be connected with the remote medical server network; Described portable medical instrument is transferred to handheld type diagnosis terminal with the patient information that collects after remote medical server stores; Described handheld type diagnosis terminal receives patient information and sends diagnostic message and be transferred to portable medical instrument after the remote medical server storage.
Preferably, described system comprises several portable medical instrument and several handheld type diagnosis terminal; Several portable medical instrument are gathered patient signal and be transferred to several handheld type diagnosis terminal after the remote medical server classified and stored; Several handheld type diagnosis terminal send diagnostic message and be transferred to the remote medical service system that several handheld type diagnosis terminal form multi-to-multi after the remote medical server classified and stored.
Preferably, described portable medical instrument comprise the signal acquisition module of gathering patient information, signal processing module that patient information is handled and to the signal transmission module of remote medical server transmission patient information.
Preferably, described signal acquisition module comprises the interior environmental sensor of physiology/pathological parameter of gathering sick imperial palace environment, the external environment pick off of ambient parameter of gathering patient's external environment of living in and the motion sensor of kinestate, and gives signal processing module with the patient information that collects.
Preferably, described signal processing module comprises that sampling keeps module, signal amplifier, analog-digital converter and microprocessor, and the patient information of described sampling maintenance module received signal acquisition module keeps converting digital signal to by analog-digital converter after signal amplifier amplifies and flows to microprocessor processes; Described signal transmission module comprises wireless transport module, and described patient information is wirelessly transmitted to remote medical server after treatment, and the diagnostic result of wireless receiving remote medical server storage.
Preferably, described wireless transport module is selected from CDMA module, gsm module, GPRS module and 3G module; Described wireless transport module is connected with remote medical server with the INTERNET network by GPRS network.
As preferably, described portable medical instrument can also comprise instruction input module, display module and power module, be provided for gathering the pick off of physiology/pathological parameter in the signal acquisition module of portable medical instrument, gather the pick off of ambient parameter and the pick off of kinestate, and give signal processing module the signal that collects; Power module is for each module provides the power supply support; Preferred, the pick off of described signal acquisition module comprises heart rate sensor, pressure transducer, body temperature trans, respiration pickup, blood oxygen transducer, pulse transducer, blood glucose sensor, blood fat pick off, acceleration transducer, baroceptor, humidity sensor and temperature sensor.Microprocessor receives the digitized physiology/pathological parameter after analog-digital converter is changed in the described signal processing module, and to its analyze, computing and storage, give signal transmission module by interface then, physiology/pathological parameter after signal transmission module will be handled is wirelessly transmitted to remote medical server, wireless receiving doctor's diagnostic result; Instruction input module comprises button, is used to control medical instrument duty; Display module is used to show patient's physiology/pathological parameter, ambient parameter, kinestate and diagnostic result.
Preferably, described handheld type diagnosis terminal comprises the MIM message input module that is used to import diagnostic message, display module and the WiFi module that shows patient information and diagnostic message; Described WiFi module is by the patient information that receives the remote medical server that is connected with the INTERNET network after wlan network and the WAP communication and store and send diagnostic message and be transferred to remote medical server through WAP, is transferred to the display module demonstration after the described patient information reception.
Preferably, built-in WIFI protocol stack of described WIFI module and serial ports host-host protocol are realized carrying out communication with WAP.Described WIFI protocol stack comprises IEEE 802.11a, IEEE 802.11b, IEEE802.11g and IEEE 802.11n standard.
Preferably, described handheld type diagnosis terminal also comprises microprocessor, memorizer and power module, behind the physiology/pathological parameter of WIFI module reception from the patient of remote medical server, show that by display module the doctor can diagnose the formation diagnostic message according to these patient informations; Microprocessor can be controlled the instruction of WIFI module, memorizer and display module and the input of process information input module; Memorizer can be used for storing embedded operation processing program and physiology/pathological parameter and corresponding diagnostic result; MIM message input module is used to import diagnostic result and inquiry patient information; Power module is for each module provides the power supply support.
Preferably, described remote medical server comprises patient information storehouse and information about doctor storehouse; After described remote medical server reception patient information or the diagnostic message information being analyzed classified and stored transmits corresponding information behind the patient information storehouse to handheld type diagnosis terminal or portable medical instrument.
Preferably, described remote medical server can have the software and hardware that is connected with the Internet network, and its internal configurations has physiology/pathological parameter calculation process software, real-time monitoring software, patient information storehouse and information about doctor storehouse.
Preferably, remote medical service system of the present invention can also comprise the general purpose computer that is connected with remote medical server by the INTERNET network, and described general purpose computer can be inquired about patient information (as physiology/pathological parameter, ambient parameter, kinestate) or diagnostic message or information about doctor after by INTERNET network login remote access remote medical server.
Another object of the present invention is to provide a kind of remote medical service system of wlan standard that utilizes to carry out the tele-medicine service method, it is characterized in that said method comprising the steps of:
(1) patient is transferred to remote medical server with patient information by network after utilizing portable medical instrument to gather patient information;
(2) remote medical server is transferred to handheld type diagnosis terminal with patient information by network after receiving behind the patient information patient information being analyzed classified and stored;
(3) after handheld type diagnosis terminal received patient signal, the doctor imported diagnostic message and diagnostic message is transferred to remote medical server by network;
(4) remote medical server is transferred to portable medical instrument with diagnostic message by network after receiving after the diagnostic message diagnostic message being analyzed classified and stored.
Preferably, described remote medical service method can carry out according to following steps:
The signal acquisition module of portable medical instrument is gathered physiology/pathological parameter of patient and ambient parameter, kinestate, and with related data transmission to wireless transport module, wireless transport module is transferred to GPRS network by antenna with data wireless; Data enter the Internet network by the interface of GPRS and Internet, and are uploaded to remote medical server; Remote medical server is sorted out, is analyzed and store, and transfer data to wlan network by the interface of Internet and wlan network physiology/pathological parameter and ambient parameter, kinestate; Handheld type diagnosis terminal receives data from wlan network by the WIFI module, and shows physiology/pathological parameter of patient and ambient parameter, kinestate; The doctor inputs to handheld type diagnosis terminal by MIM message input module with diagnostic result, and sends to the WIFI module; Data enter the Internet network by the interface of wlan network and Internet, and are uploaded to remote medical server; Remote medical server is stored doctor's diagnostic result, by the Internet transmitted data on network, and enters GPRS network by the interface of Internet and GPRS; Portable medical instrument receives the data from GPRS network, and shows the diagnostic result of doctor's feedback; The diagnostic result that general purpose computer feeds back by physiology/pathological parameter, ambient parameter, kinestate and the doctor who lands remote medical server visit patient.
Because diagnosis terminal and hospital server wired connection make doctor's diagnosis terminal and hospital server be bundled in certain zone (in hospital's scope), cause the doctor to carry out diagnoses and treatment and can not leave the relevant range in the prior art; And when hospital size was big, more wired connection networking needed higher cost, might form resource bottleneck with the equipment of similar hub or switch, caused information dropout etc.; And the present invention adopts handheld type diagnosis terminal, by directly communication between diagnosis terminal and WAP, improves bigger motility to the doctor; The doctor can carry out communication with WAP whenever and wherever possible by handheld type diagnosis terminal in the effective coverage of WAP; And need not any equipment between handheld type diagnosis terminal and WAP, significantly reduced relevant costs such as wires design; In addition, with the direct communication of WAP can be hospital server in the LAN, also can be other servers of outer net, realized effectively sharing of medical resource.
With respect to scheme of the prior art, advantage of the present invention is:
1. between the handheld type diagnosis terminal of the remote medical service system medium-long range medical server of technical solution of the present invention and doctor's end, the WAP that uses wlan standard is set, described handheld type diagnosis terminal and WAP carry out communication by the wifi agreement, reduce the restriction dependence of handheld type diagnosis terminal to space length, make the doctor have the place of wlan network to carry out terminal diagnostics any, needn't stick in hospital's scope, improve medical personnel's work efficiency.In addition, because the portable medical instrument that is connected with the remote medical server network is set in remote medical service system, patient can seek medical advice whenever and wherever possible, can seek the doctor who oneself needs.
2, in optimal technical scheme of the present invention, adopt a plurality of portable medical instrument, a plurality of handheld type diagnosis terminal, between medical personnel and patient, set up a kind of remote medical service system of multi-to-multi, under the situation of medical care resource anxiety, can be beneficial to medical personnel's resource allocation timely and conveniently for patient provides the chance of seeking medical advice; And make things convenient for medical personnel that difficult and complicated illness is carried out collective's consultation of doctors research, and improve the active participation of medical personnel's consultation of doctors, reduce the mistaken diagnosis probability of difficult and complicated illness.
3. technical scheme of the present invention can realize remote diagnosis, and patient can realize communicating by letter with the other side in different separately zones by network with medical personnel, can realize sharing of medical resource.And the wlan network technology maturation, the user acceptance level is very high, makes handheld type diagnosis terminal can realize function in more zone, and doctor's zone is selected can be varied; And wlan network do not need frequency permission, and the whole world is free, helps the generally popularization that handheld type diagnosis terminal is carried out terminal diagnostics.
4, the general purpose computer that passes through INTERNET network and remote medical server is set in the preferred technical solution of the present invention, conveniently inquires about patient information and Diagnostic Time.Remote medical server can be analyzed, be sorted out, stores patient information, diagnostic message and information about doctor, helps medical history data and shares the medical care resource allocation.
5, technical scheme of the present invention is owing to portable medical instrument, handheld type diagnosis terminal are communicated with each other by remote medical server, portable medical instrument, handheld type diagnosis terminal have equity in network, thereby realize the two-way communication between medical personnel and patient; Portable medical instrument, handheld type diagnosis terminal are all easy to carry in addition, realize seeking the mobility of doctor, diagnosis.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is the SNA sketch map of embodiments of the invention medium-long range medical service system;
Fig. 2 is the structural representation of portable medical instrument in the embodiments of the invention;
Fig. 3 is the workflow diagram of portable medical instrument in the embodiments of the invention;
Fig. 4 is the surface chart of handheld type diagnosis terminal in the embodiments of the invention;
Fig. 5 is the workflow diagram of handheld type diagnosis terminal WIFI module in the embodiments of the invention.
The specific embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiment are used to the present invention is described and are not limited to limit the scope of the invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment somewhere remote medical service system
As Fig. 1, the remote medical service system of present embodiment adopts network communicating system structure as shown in Figure 1, comprising portable medical instrument, remote medical server, handheld type diagnosis terminal, portable medical instrument by GPRS network be connected with remote medical server with INTERNET network that GPRS is communicated with, described handheld type diagnosis terminal is connected with remote medical server with INTERNET network with the WLAN connection by wlan network.Described portable medical instrument is used to gather patient's physiology/pathological parameter and ambient parameter, kinestate, and sends to remote medical server by wireless mode; Described remote medical server, link to each other with handheld type diagnosis terminal with portable medical instrument by the Internet network, the diagnostic result that is used for physiology/pathological parameter, ambient parameter, kinestate and doctor to patient is sorted out, is analyzed and stores, and the data after will handling by network are sent to the handheld type diagnosis terminal of far-end; Described handheld type diagnosis terminal, physiology/pathological parameter that can long-range demonstration patient and ambient parameter, kinestate, the doctor is by physiology/pathological parameter diagnosis patient's of the patient that consults handheld type diagnosis terminal and show the state of an illness, can import diagnostic result by handheld type diagnosis terminal, and diagnostic result be fed back its diagnostic result to portable medical instrument (patient end) by the mode of WIFI communication.
Remote medical service system moves as follows:
The signal acquisition module of portable medical instrument is gathered physiology/pathological parameter of patient and ambient parameter, kinestate, and with related data transmission to wireless transport module, wireless transport module is transferred to GPRS network by antenna with data wireless; Data enter the Internet network by the interface of GPRS and Internet, and are uploaded to remote medical server; Remote medical server is sorted out, is analyzed and store, and transfer data to wlan network by the interface of Internet and wlan network physiology/pathological parameter and ambient parameter, kinestate; Handheld type diagnosis terminal receives data from wlan network by the WIFI module, and shows physiology/pathological parameter of patient and ambient parameter, kinestate; The doctor inputs to handheld type diagnosis terminal by MIM message input module with diagnostic result, and sends to the WIFI module; Data enter the Internet network by the interface of wlan network and Internet, and are uploaded to remote medical server; Remote medical server is stored doctor's diagnostic result, by the Internet transmitted data on network, and enters GPRS network by the interface of Internet and GPRS; Portable medical instrument receives the data from GPRS network, and shows the diagnostic result of doctor's feedback; The diagnostic result that general purpose computer feeds back by physiology/pathological parameter, ambient parameter, kinestate and the doctor who lands remote medical server visit patient.
Below the various piece of remote medical service system is described in detail:
The portable medical instrument that present embodiment adopts comprises signal acquisition module, contains signal processing module, wireless transport module, instruction input module, display module and the power module of microprocessor.Signal acquisition module comprises the pick off of collection physiology/pathological parameter, and gathers the pick off of ambient parameter and the pick off of kinestate, and gives signal processing module with the signal that collects; Signal processing module comprises that amplifier, sampling keep module and analog-digital converter, are used for the signal that collects is handled; Mainly be that utilization oxygen saturation measurement module is gathered blood oxygen saturation and pulse frequency for physiology/pathological parameter collection in the present embodiment, mainly adopt acceleration transducer collection patient kinestate for the detection of kinestate, for the main serviceability temperature sensor acquisition of the collection of ambient parameter ambient temperature; Microprocessor receives digitized physiology/pathological parameter, and to its analyze, computing and storage, give wireless transport module by interface module then; Wireless transport module is wirelessly transmitted to remote medical server, wireless receiving doctor's diagnostic result with the physiology/pathological parameter after handling; Instruction input module comprises button, is used to control medical instrument duty; Display module is used to show physiology/pathological parameter, ambient parameter, kinestate and diagnostic result; Power module is for each several part provides power supply.
Oxygen saturation measurement module (SpO2) is gathered blood oxygen saturation and pulse frequency, and the physical circuit connected mode as shown in Figure 2.It is little that it has a volume, installs flexibly, and characteristics such as high reliability and accuracy of measurement height can provide that blood oxygen saturation and pulse frequency are measured fast and accurately.In addition, its single supply 5V work, low power dissipation design can show plethysmography ripple and pulse intensity, has simple serial ports and connects, and is easy to integratedly, the communications protocol of communications protocol and BCI is compatibility fully.The measurement unit of blood oxygen saturation is %, and the measurement unit of pulse frequency is BPM.Serial communication adopts the RS232 mouth, supports that 4800/115200 baud rate is optional.Oxygen saturation measurement scope 0-100%, pulse frequency measuring range 25～250 times/minute.The resolution of blood oxygen saturation is 1%, and the resolution of pulse frequency is 1BPM.The certainty of measurement of blood oxygen saturation reaches ± and the certainty of measurement of 2% (70-100%) pulse frequency reaches ± 2% (25-250BPM).Blood oxygen saturation (SpO2) measurement module and microprocessor adopt the serial communication mode to be connected, and adopt 4 needle sockets, be used for upper machine communication and power supply is provided, and pinout is as follows: PIN1:TXD, PIN2:RXD, PIN3:GND, PIN4:+5V.Adopt 5 needle sockets to be connected, be defined as follows: R_LED: HONGGUANG output, IR_LED: infrared light output, GND: ground, Opto+: just import Opto-with probe; Input is negative.The serial communication data format is: start bit+8 bit data position+1 position of rest, no parity check; Baud rate can be set to: 4800baud, 115200baud.Blood oxygen saturation (SpO2) data that measurement module collected are: 5 byte formats, each second 60 bags, the 7th is sync bit.
Wherein, particular content can for:
The temperature sensor that present embodiment adopts is the TC77 integrated digital temperature sensor that Microchip company produces, and adopts the output of 13 bit serial interface, and temperature data is got by hot sensing unit conversion.TC77 contains inside 13 ADC, and temperature resolution is 0.0625 ℃/LSB.In normal working conditions, quiescent current is 250 μ A (representative value).Other equipment are realized by SPI universal serial bus or Microwire compatibility interface with communicating by letter of TC77, this bus can be used for connecting a plurality of TC77, realize the multizone monitoring temperature, the low-power consumption shutdown mode is activated in the SHDN position among the configuration register CONFIG, and this moment, current drain only was 0.1 μ A (representative value).
The TC77 pinout is as follows: SI/O: serial data pin, SCK: serial clock, Vss: ground, CE: sheet choosing end (low level is effective), VDD: supply voltage (6.0V).The universal serial bus of TC77 comprises chip selection signal line CE, serial clock signal line SCK and serial data signal line SI/O, follows SPI or Mi-crowire interface standard agreement.When having a plurality of TC77 to be connected to serial clock and serial data signal line, CE is used to select some TC77 devices wherein, when CS is logical zero, be used for write device or from the device sense data synchronously; When CS was logical one, SCK was under an embargo.Intercommunication mutually between the trailing edge starter of CS, the rising edge of CS then stop the intercommunication mutually between device.
Power on or voltage when resetting, TC77 promptly is in the continuous temperature translative mode, power on or the first time effective temperature conversion of voltage when resetting can continue about 300ms, after the first time, temperature transition finished, the 2nd of temperature register is changed to logical one, and during first time temperature transition, the 2nd of temperature register is changed to logical zero, therefore, can judge whether temperature transition finishes for the first time by the state of the 2nd in monitor temperature depositor.TC77 adopts 13 complement of two's two's complements to represent temperature, and table 1 is listed to be relation between temperature, binary code complement code and the heuristicimal code of TC77.Least significant bit in the table (LSB) is 0.0625 ℃, and latter two LSB position (ascend the throne 1 and position 0) for ternary, in the table is " 1 ".Power on or the voltage reseting event after when taking place that temperature transition finishes for the first time, position 2 is changed to logical one.
The motion sensor that present embodiment adopts is the ADXL330 pick off.Its principle exists: any motion of human body from start to end, the acceleration at each position of its motion limbs is to change always.If repeat arbitrary action, the Changing Pattern of its acceleration also is very approaching.So,, just can exactly this characteristic point X, Y, three components of acceleration of Z in motor process be gathered out as long as 3-axis acceleration sensor is placed on certain characteristic point of tested person's limbs.Then, by component of acceleration is carried out mathematical calculation, just can obtain information such as the movement locus of this point and dynamic process.The data that a plurality of characteristic point collected are carried out analysis-by-synthesis, just can draw the details of tested human motion, thereby realized the digitized of movable information.
ADXL330 is the acceleration transducer of one three (x axle, y axle and Z axle) simulation output, measure the component of acceleration of any time three directions by DXL30, just can calculate information such as this moment the direction of motion of pick off place spatial point, locus, by to information processing, obtain the detailed data of this some action.A plurality of characteristic points to human body detect simultaneously, and data are carried out analysis-by-synthesis, just can obtain the information of human motion.ADXL330 is a thermal convection current formula 3-axis acceleration sensor, the output of signal condition voltage is arranged, and maximum measuring range is ± 2g that the bandwidth of X and Y-axis is from 0.5Hz to 1600Hz, Z axle bandwidth has good zero g bias stability and good sensitivity degree of accuracy from 0.5Hz to 550Hz.Utilize the integrated analog-digital converter of microprocessor internal that three outputs of acceleration transducer ADXL330 are gathered.
The wireless transport module of portable medical instrument is a four frequency band GSMs/GPRS module for the GPRS communication module SIM900.SIM900 that SIMCOM company produces, can work under three kinds of frequencies of GSM850MHz, EGSM 900MHz, DCS 1800MHz, PCS 1900MHz in the world, nearly 10 of GPRS multichannel types can be provided, and support CS-1, CS-2, CS-3 and four kinds of GPRS encoding schemes of CS-4.The SIM900 structure is small and exquisite, and overall dimensions is 24mm*24mm*3mm only.SIM900 has low power dissipation design, and the current drain under the sleep pattern only is 1.5mA.The inner integrated ICP/IP protocol stack of SIM900, and expanded TCP/IP AT instruction.
| Characteristic | Explanation |
| Running voltage | Single-voltage-supply cmos, 3.4-4.5V |
| Low-power consumption mode | Under the park mode, the operating current representative value is 1.5mA |
| Working frequency range | ● SIM300 has four frequency range: GSM850, EGSM900, DCS1800, PCS1900.Band frequency can be provided with by the AT instruction.● with GSM Phase 2/2+ compatibility. |
| The GSM type | Small-sized mobile base station (MS) |
| The emission power consumption | ● at frequency GSM850 and 4 times 2W of EGSM900 CLASS ● at frequency DCS1800 and 1 time 1W of PCS1900 CLASS |
| GPRS connects | ● 10 grades of GPRS multi-slots ● GPRS mobile station B level |
| Operating temperature | ● normal working temperature :-30 ℃～+ 80 ℃ ● the limit of working temperature :-45 ℃～-30 ℃ ,+80 ℃～+ 85 ℃ ● storing temperature :-45 ℃～+ 90 ℃ |
| The GPRS transfer of data | ● the maximum 85.6kbps of GPRS downlink data transmission ● the maximum 42.8kbps of GPRS transmitting uplink data ● encoding scheme: CS-1, CS-2, CS-3, CS-4 ● SIM900 supports PAP (password authentification) agreement, this agreement is generally used for PPP and connects ● SIM900 is integrated ICP/IP protocol |
| Circuit switched data (CSD) | ● support Packet Broadcast Control CHannel (PBCCH) ● the circuit switched data transfer rate: 2.4,4.8,9.6,14.4kbps, non-transparent transmission ● support unstructured supplementary data traffic (USSD) |
| The SIM interface | Support the SIM of two types of 1.8V and 3V |
| External antenna | Antenna connector or antenna connecting plate by 50 Ω connect |
| Two serial communication interfaces | ● the excuse of serial ports 1 has 8 single data and condition line ● serial ports 1 can be used as CSD fax, GPRS service and send control module AT order ● serial ports 1 can use multiplexed function, but can not use simultaneously this moment with serial ports 2 ● supported auto-baud is: 1200bps～115200bps ● the interface of serial ports 2 has only/TXD and/RXD two data lines, do not have state and control line ● serial ports 2 can only be used for transmitting AT and order |
| Real-time clock | Inside has real-time clock, and backup battery interface is arranged |
| Timing function | Can be by AT order programming |
| Physical features | Size: 24mm*24mm*3mm weight: 3.4g |
The explanation of SIM900 pin, concrete pinout is as follows:
The power supply power supply: SIM900 adopts single-voltage-supply cmos from VBAT, and voltage is 3.4V-4.5V.Under some situation, when current drain rose to typical peak value 2A, the fluctuation of its transmission pulse may cause voltage to descend, so the power supply power supply must can provide the electric current that enough arrives 2A.Be recommended in the VBAT input pin and use shunt capacitance (recommendation: 100uF, Low ESR).Tantalum electric capacity (Low ESR) little Leaded Ceramic Disc Capacitor (0.1uF is to 1uF) in parallel that reduces cost and can select 100uF for use, electric capacity is placed the VBAT pin of as close as possible SIM300.
Start and close SIM900., disconnect then and postpone 2.2S, can open the SIM900 module by short circuit PWRKEY and PWRKEY_OUT a period of time (greater than 1S).After the unlatching, serial ports will receive judged result code " RDY ".Equally,, disconnect then and postpone 1.7S, can close the SIM900 module by short circuit PWRKEY and PWRKEY_OUT a period of time (greater than 1S).Before closing, serial ports will receive object code " NORMAL POWER DOWN ".
Real-time clock: module can be powered to real-time clock by pin VRTC by external power source or battery (chargeable or disposable can).The resistance of integrated herein 8.2K is used for current limliting.Only need connect an electric capacity is used as the real-time clock stand-by power supply for pin VRTC.
Serial interface: SIM900 provides a uneven asynchronous operation serial ports.The GPRS module is connected the baud rate of auto-baud support from 1200bps to 115200bps by serial ports with microcontroller.TXD: the data receiver RXD that sends data to microcontroller; RXD: receive data sending terminal TXD from microcontroller.Serial interface has 8 lines, comprising data wire TXD and RXD, and condition line RTS and CTS, control line DTR, DSR, DCD and RING.Serial ports can be used as the GPRS service and sends the AT instruction of control module.Also multiplexed function can be used, but debugging interface can not be used simultaneously during with multiplexed function.Serial ports is supported following baud rate: 1200,2400,4800,9600,19200,38400,57600,115200, be defaulted as 115200bps.Below auto-baud is supported: 1200,2400,4800,9600,19200,38400,57600,115200bps.
The SIM interface: the SIM interface is supported GSM Phase 1 standard function, also supports the GSM Phase 2+ standard function (aiming at the utilization design of SIM application toolkit) at quick 64kbpsSIM card.Support 1.8V and 3.0VSIM card simultaneously, the SIM interface is from the power taking of module (normal voltage 2.8V) internal regulator.22 Ω resistance should be series on the IO line of module and SIM, with matched impedance.Pull-up resistor (approximately 10K Ω) must be added on the SIM_I/O line.Whether the SIM_PRESENCE pin is used for detecting SIM and is removed.The configuration of SIM can be set with instruction " AT+CSDT ".
Network state shows: pin NETLIGHT is used for driving a network state indication LED lamp, and the duty such as the following table of this pin are listed:
| State | The SIM900 function |
| Close | SIM900 does not move |
| 64ms opens/and 800ms closes | SIM900 can not find network |
| 64ms opens/and 3000ms closes | SIM900 finds network |
| 64ms opens/and 300ms closes | GPRS communication |
Portable medical instrument adopts above-mentioned sensor acquisition to need to send the data after the processing to remote medical server after physiology/pathological parameter of patient and ambient parameter, kinestate in the present embodiment, as shown in Figure 3 the workflow diagram of portable medical instrument.The most important condition of transfer of data is that portable medical instrument will be set up a TCP earlier with remote medical server and is connected.Portable medical instrument is initiated a TCP as client to remote medical server and is connected, successfully connecting, to need remote medical server be a PC who is connected to INTERNET, and the IP address of this PC be public network the IP address (can with the dialing mode obtain, as then connecting) in PC LAN inside, this PC runtime server software then, at this moment just can set up TCP with the AT order with SERVER and be connected (AT+CIPSTART=" TCP " in portable medical instrument, " server ip address ", " server end slogan "), can return CONNECT OK after the successful connection.Just can send data to SERVER with AT+CIPSEND then, if SERVER has data, module receives by serial ports automatically.Close TCP and connect available AT+CIPCLOSE order.
Portable medical instrument starts the transmission data command with the AT+CIPSEND order, returns the data that the input of "＞" back sends, and ctrl+z (0x1a) starts transmission.Return SEND OK after being sent completely.Be in command mode this moment, if there have the data transmission to repeat above step again to be just passable.Each data length that sends should be less than 1024bytes.The reception data are automatic reception, if then automatic reception of remote data is arranged.Can add sign automatically in the data front that receives with AT+CIPHEAD=1.
The handheld type diagnosis terminal that adopts in the present embodiment comprises the MIM message input module that is used to import diagnostic message, display module, WiFi module, microprocessor, memorizer and the power module that shows patient information and diagnostic message; Described WiFi module is by the patient information that receives the remote medical server that is connected with the INTERNET network after wlan network and the WAP communication and store and send diagnostic message and be transferred to remote medical server through WAP, is transferred to the display module demonstration after the described patient information reception.Built-in WIFI protocol stack of described WIFI module and serial ports host-host protocol are realized carrying out communication with WAP.Described WIFI protocol stack comprises IEEE 802.11a, IEEE 802.11b, IEEE 802.11g and IEEE 802.11n standard.Behind the physiology/pathological parameter of WIFI module reception from the patient of remote medical server, show that by display module the doctor can diagnose the formation diagnostic message according to these patient informations; Microprocessor can be controlled the instruction of WIFI module, memorizer and display module and the input of process information input module; Memorizer can be used for storing embedded operation processing program and physiology/pathological parameter and corresponding diagnostic result; MIM message input module is used to import diagnostic result and inquiry patient information; Power module is for each module provides the power supply support.
Microprocessor adopts the S3C44B0 of Samsung in the present embodiment, concrete operation interface as shown in Figure 4:
The handheld type diagnosis terminal external form mainly is divided into key input part and menu display part.Key input part has: upper and lower, left and right, definite, cancellation, be total to six press keys, and the doctor can operate all menus with this six press keys.The menu display part is very color LCD display, it is available to have nine menus, is respectively: " server info ", " this machine information ", " current patient information ", " case history inquiry ", " case demonstration ", " diagnostic operation ", " search patient ", " drug information ", " other doctors "." server info " shows the information that remote server sends; " this machine information " shows the duty and the configuration information of current machine; " current patient information " shows all information of current reception diagnosis patient, comprise name, age, sex, physiology pathological information, kinestate, ambient parameter etc.; " case history inquiry " shows the physiology/pathology record of patient in a period of time; " case demonstration " shows relevant patient's information and diagnostic message; " diagnostic operation " input diagnostic result is clicked " determining " key then diagnostic result is sent to remote medical server; " search patient " searches other patients that current online needs are treated; " drug information " shows the information of relevant medicine and armarium; " other doctors " shows current online other doctors' situation.
Microprocessor comprises following function:
(1.1) to WiFi module transmitting control commands;
(1.2) receive and resolve the message that the WiFi module sends;
(1.3) be provided with and inquire about WiFi modules configured parameter;
(1.4) transfer of data is carried out in communication and between WAP.
The WiFi module radios to WAP by antenna by wlan network with data, and the interface by WAP and Internet network, is transferred to remote medical server.
In the present embodiment, adopting model is the WiFi module of CG-WIFI-1000, this module has SOC chip (System on a Chip, system level chip), the cost performance height, stable performance, built-in WiFi protocol stack and serial ports host-host protocol comprise that ground, TX send, Rx receives and 4 ports of 5V power supply.The WiFi module has automatically and manual two kinds of networking patterns are selected for the user, in the present embodiment, adopts automatic networking pattern.Fig. 5 is the flow chart of WiFi module from the wlan network that is dynamically connected, and comprises step:
(2.1) WiFi electrification reset;
(2.2) scanning objective network;
(2.3) with the parameter comparison of scanning result and network settings,, return step 2, if coupling continues step 4 if do not mate;
(2.4) linking objective network;
(2.5) if the success of linking objective network has then connected wlan network, if the linking objective network failure then returns step 2 and rescans network.
Wherein, the parameter of network settings comprises:
1. the BSSID of objective network (Basic Service Set Identifier, BSSID), i.e. the MAC of the AP of objective network (Media Access Control, medium access control) address, each AP has unique MAC Address, to distinguish heterogeneous networks;
2. the channel number of objective network;
3. the SSID of objective network (Service Set Identifier, service set identifier), also be ESSID, be used for distinguishing different networks, SSID is broadcast out by AP usually, say that simply SSID is exactly the title of a LAN, only be set to the computer ability intercommunication of the value of the identical SSID of title;
4. Device IP, i.e. the IP address of WiFi module;
5. the IP address of remote medical server;
6. the port numbers of remote medical server.
The maximum 7 groups of basic parameters of the WiFi module support of present embodiment are provided with, and can connect 7 objective networks at most.In current region, there is under the situation more than an objective network WiFi module first available network that will be dynamically connected certainly.In use, the user only needs disposable when using first at least one group of basic parameter to be set.Afterwards, the WiFi module can be behind each electrification reset the automatic scam network, if detect the objective network that sets then connect automatically, and send the networking success message to medical personnel after successful connection, medical personnel can the normal transmission data after receiving this message.Under automatic networking pattern, module energy automatic scam objective network, broken string can reconnect automatically, need not any intervention of medical personnel.When connection failure, network disconnected or rescan into objective network, the WiFi module can reconnect automatically.When the AP of objective network has closed or WiFi module when having left the wireless access point AP signal coverage areas, the WiFi module can enter the automatic scam state, up to scanning available network once more.
Under the networking state, the WiFi module is transmitted the valid data that receive automatically between UART user interface (Universal Asynchronous Receiver/Transmitter, universal asynchronous reception/dispensing device) and radio network interface.Be provided with according to the user, the WiFi module is supported the network data transmission of RAW/UDP/TCP/ (raw data format/User Datagram Protocol UDP/TransmissionControl Protocol transmission control protocol), and data link layer can be carried out the data of UDP message form and be transmitted.When the link layer of WiFi module uses the UDP mode, IP address of equipment, server ip address and service port number information all must meet the setting of ICP/IP protocol regulation, if server is positioned at different subnets with the WiFi module, also subnet mask and gateway need be set, otherwise can't communicates by letter.
In the present embodiment, remote medical server comprises patient information storehouse and information about doctor storehouse; After described remote medical server reception patient information or the diagnostic message information being analyzed classified and stored transmits corresponding information behind the patient information storehouse to handheld type diagnosis terminal or portable medical instrument.Remote medical server has the software and hardware that is connected with the Internet network, and its internal configurations has physiology/pathological parameter calculation process software, real-time monitoring software, patient information storehouse and information about doctor storehouse.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalent transformations that spirit is done according to the present invention or modification all should be encompassed within protection scope of the present invention.
Claims (10)
1. remote medical service system, comprise the remote medical server of the portable medical instrument of being responsible for gathering patient information, the handheld type diagnosis terminal that sends diagnostic message and storage patient information and diagnostic message, described portable medical instrument is connected with the remote medical server network; It is characterized in that described system also comprises the WAP that is connected with remote medical server, described handheld type diagnosis terminal by with the WAP communication after be connected with the remote medical server network; Described portable medical instrument is transferred to handheld type diagnosis terminal with the patient information that collects after remote medical server stores; Described handheld type diagnosis terminal receives patient information and sends diagnostic message and be transferred to portable medical instrument after the remote medical server storage.
2. remote medical service system according to claim 1 is characterized in that described system comprises several portable medical instrument and several handheld type diagnosis terminal; Several portable medical instrument are gathered patient signal and be transferred to several handheld type diagnosis terminal after the remote medical server classified and stored; Several handheld type diagnosis terminal send diagnostic message and be transferred to the remote medical service system that several handheld type diagnosis terminal form multi-to-multi after the remote medical server classified and stored.
3. remote medical service system according to claim 1 is characterized in that described portable medical instrument comprises the signal acquisition module of gathering patient information, signal processing module that patient information is handled and to the signal transmission module of remote medical server transmission patient information.
4. remote medical service system according to claim 3, it is characterized in that described signal acquisition module comprises the interior environmental sensor of gathering the physiology/pathological parameter of environment in the patient, the external environment pick off of the ambient parameter of gathering patient's external environment of living in and the motion sensor of kinestate, and give signal processing module with the patient information that collects.
5. remote medical service system according to claim 3, it is characterized in that described signal processing module comprises that sampling keeps module, signal amplifier, analog-digital converter and microprocessor, the patient information of described sampling maintenance module received signal acquisition module keeps converting digital signal to by analog-digital converter after signal amplifier amplifies and flows to microprocessor processes; Described signal transmission module comprises wireless transport module, and described patient information is wirelessly transmitted to remote medical server after treatment, and the diagnostic result of wireless receiving remote medical server storage.
6. remote medical service system according to claim 5 is characterized in that described wireless transport module is selected from CDMA module, gsm module, GPRS module and 3G module; Described wireless transport module is connected with remote medical server with the INTERNET network by GPRS network.
7. remote medical service system according to claim 1 is characterized in that described handheld type diagnosis terminal comprises the MIM message input module that is used to import diagnostic message, display module and the WiFi module that shows patient information and diagnostic message; Described WiFi module is by the patient information that receives the remote medical server that is connected with the INTERNET network after wlan network and the WAP communication and store and send diagnostic message and be transferred to remote medical server through WAP, is transferred to the display module demonstration after the described patient information reception.
8. remote medical service system according to claim 7 is characterized in that built-in WIFI protocol stack of described WIFI module and serial ports host-host protocol are realized and WAP carries out communication.
9. remote medical service system according to claim 1 is characterized in that described remote medical server comprises patient information storehouse and information about doctor storehouse; After described remote medical server reception patient information or the diagnostic message information being analyzed classified and stored transmits corresponding information behind the patient information storehouse to handheld type diagnosis terminal or portable medical instrument.
10. one kind is utilized the described remote medical service system of claim 1 to carry out the tele-medicine service method, it is characterized in that said method comprising the steps of:
(1) patient is transferred to remote medical server with patient information by network after utilizing portable medical instrument to gather patient information;
(2) remote medical server is transferred to handheld type diagnosis terminal with patient information by network after receiving behind the patient information patient information being analyzed classified and stored;
(3) after handheld type diagnosis terminal received patient signal, the doctor imported diagnostic message and diagnostic message is transferred to remote medical server by network;
(4) remote medical server is transferred to portable medical instrument with diagnostic message by network after receiving after the diagnostic message diagnostic message being analyzed classified and stored.
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