CN2564109Y - Digital telephone transmission heart health scanner - Google Patents

Abstract

Disclosed is a digital scanner for the heart health, which comprises: an ECG electrode (1), an ECG signal amplifier (2), a data acquisition device (3), a special LCD module (4), a real-time clock (5), a data transmission interface (6) and power supply (7). The utility model is characterized in also comprising an A/D converter, a memory and a modem. Wherein, a data port of a controller is connected with data line of the memory; an address port of the controller is connected with address line of the memory; a DCD end, an RXD end and a TXD end of the modem are connected with the controller.

Description

A kind of digital phone transmission health of heart scanning device

Technical field

This utility model relates to the digital phone transmission of a kind of usefulness health of heart scanning device, relates in particular to by telephone wire and transmits Electrocardiographic instrument with digital form.

Background technology

Before this utility model occurs, the health of heart scanning device of patient end lacks digital storage device, make the health of heart scanning device of patient end use inconvenient, in addition, the phone transmission electrocardiogram adopts the analog fm transmission more in the prior art, this is a kind of transmission means of early stage appearance, through analog fm transmission electrocardio, its characteristics can realize singly leading electrocardio or lead electrocardio timesharing transmission more, shortcoming is can only one-way transmission, do not have the automatic error correction function interference free performance poor, be subject to send and the reception environment interference of noise U.S., with, the product of Australia is the analog fm transmission.If be furnished with computer management system, must be that digital signal just can be handled with the analog signal conversion of receiving at receiver system.

In addition, previously all adopt the separate unit microcomputer in parallel as work station both at home and abroad with the separate unit phone.Once receive a patient's signal, be not easy to networking, obviously there is inconvenient place in this.

Product of the present utility model at first adopts the digital coding transmission.Digital coding is advanced communication technology, be characterized in strong anti-interference performance, be not subject to environment, noise jamming, distortion is little, but transmitted in both directions has automatic error correcting technique error rate low, and transmission speed is fast, computer can directly be handled the digital signal that receives, and this utility model is the product that at first adopts advanced coding transmission technology in the world.

Summary of the invention

Therefore, first purpose of the present utility model is the health of heart scanning device that provides a kind of volume little, inexpensive the signal that records to be stored, and be easy to when being necessary read out, and transfer out with digital mode.

The 3rd purpose of the present utility model is to adopt the work station of office's net formula that many microcomputers form, and can receive a plurality of patients' signal simultaneously.

The 4th purpose of the present utility model is to provide a device of being made up of digital phone transmission health of heart scanning device (being called for short the health of heart scanning device down) and digital telephone transmission electro cardio signal workstation (abbreviation work station down).

In order to realize above purpose, this utility model provides a digital phone transmission health of heart scanning device, comprises electrocardioelectrode, ecg signal amplifier, data acquisition and controller, special liquid crystal display module, real-time clock, data transmission interface, power supply.

In order to realize above purpose, this utility model provides a digital phone transmission electro cardio signal workstation, by the webserver, transmission server, monitoring terminal and hub, netting twine, printer, phone form the office net.

This utility model is compared with existing conventional cardiac monitoring technology, has following advantage:

User can carry out record to the electrocardio situation at any time, thereby can these data be delivered to work station by suitable manner where necessary, analyzes.

Description of drawings

Fig. 1 is the block diagram of the complete machine of digital phone transmission health of heart scanning device.

Fig. 2 is the detector of digital phone transmission health of heart scanning device and the profile sketch map of modem one.

Fig. 3 a, Fig. 3 b and Fig. 3 c are the detector of digital phone transmission health of heart scanning device and the profile sketch map of modem split.

Fig. 4-1 and 4-2 are the amplifying circuits of the detector in the digital phone transmission health of heart scanning device.

Fig. 5-1 and 5-2 are the digital circuit schematic diagrams of the detector in the digital phone transmission health of heart scanning device.

Fig. 6 is the modem electrical schematic diagram in the digital phone transmission health of heart scanning device.

Fig. 7 is digital phone transmission health of heart scanning device electro cardio signal workstation block diagram.

Fig. 8 is the software flow pattern in the digital phone transmission health of heart scanning device electro cardio signal workstation.

Fig. 9-1,9-2 are the Data Transport Protocols between digital phone transmission health of heart scanning device and the work station.

The specific embodiment

Below in conjunction with figure this utility model is described in further detail: this utility model is to be referred to as digital phone transmission health of heart scanning device, and it is made up of detector and transmitter.

Fig. 1 is the block diagram of detector of the present utility model, and with reference to Fig. 1, it is by electrocardioelectrode (1), ecg amplifier (2), data acquisition and control circuit (3), special liquid crystal display module (4), real-time clock (5), data transmission interface (6), power supply circuits (7) are formed.

Power supply circuits are supplied with by No. 5 batteries of 2 joints, and 3V voltage is transformed into the 5V DC voltage through the DC/DC of TPS60111, and use on the power supply road:

LCD MODULE adopts special-purpose display module customized, and interior band LCD controller is connected with host CPU by the dedicated serial EBI, the various duty energy and the real-time calendar time of the electrocardio detector that is used to show that host CPU is sent here;

Data acquisition and control circuit are the control cores of electrocardio detector, mainly form by 80C552CPU, program storage (ROM), large capacity data memory (SRAM), real-time timepiece chip and other auxiliary circuit, this part will be under the supporting control software assistance, is used to finish display management of the data acquisition of lead switching, electrocardiosignal of electrocardiosignal and transmission, various duties etc.;

The electrocardiosignal amplifying circuit is the key of electrocardio detector, and 1000 times high-performance amplifying power can be provided for faint electrocardiosignal.

In the dashed rectangle partly is the complete machine block diagram of digital phone transmission health of heart scanning device, and the latter is with after transmitter (8) links to each other, and through telephone network (9), Modem (10) reaches work station (11).

Fig. 2 is the detector of digital phone transmission health of heart scanning device and the sketch map of modem one, and Fig. 3 a and 3b are respectively the detector of digital phone transmission health of heart scanning device and the profile sketch map of modem split.With reference to Fig. 2, whole health of heart scanning device and detector can be installed in one or two than in the big slightly casing of palm, and the line socket that leads, telephone line socket and the external dc power jack that link to each other with electrocardioelectrode are housed on the casing.With reference to Fig. 3 a and 3b, modem is installed in to have in the circular arc base, detector then is installed in the hand-held casing with design, base has the groove that holds hand-held set, base groove to the lower surface gold-plated electrical contact is housed respectively to upper surface and hand-held detector, functional unit that need not be special, the groove that detector need only be aimed at base slips into gently, can realize reliable connection.And, can disconnect connection with detector in groove, extracting from bottom to top, plug and unplug convenient and swift.From Fig. 2 and Fig. 3 a and 3b as can be seen the two difference be: all parts of the health of heart scanning device of integral type are installed in the casing, and split type be that the modem of health of heart scanning device is installed in the casing, detector is installed in another casing.

Fig. 4-1 and 4-2 are the electrocardio amplifying circuits of the detector in the digital phone transmission health of heart scanning device, all are made up of four high guaily unit TLV2254A and relevant peripheral resistance, electric capacity, diode etc. with reference to Fig. 4-1 and 4-2 electrocardio amplifying circuit.Enter from the faint electrocardiosignal of human body and at first to deliver to the impedance inverter circuit that constitutes by amplifier (U1/4, U3/4, U4/4) behind the electrocardio amplifying circuit, their output is through preamplifier (U2/4, U5/4, U6/4, U7/4) and final amplifier (U2/4, U5/4, U6/4, U7/4), about 30 times of its preposition amplification, the final stage amplification is 30 times.

The output of preamplifier is through being capacitively coupled to second level amplifying circuit, and 1 microfarad electric capacity and 3.3M resistance have determined the time constant of electrocardio amplifying circuit, and its time constant should satisfy requirement in 3.3 seconds.

Second level amplifier circuit is made of amplifier TLV2254 and peripheral resistance, and the A/D Acquisition Circuit of CPU inside is given in the output of amplifier, finishes 8 data acquisition functions of leading synchronous electrocardiosignal (I, II, V1, V2, V3, V4, V5, V6).The signal LA of left upper extremity sends into U1/4; The signal RA of right upper extremity sends into U1/4; The signal LL of left lower extremity sends into U1/4; The signal RL of right lower extremity sends into U1/4; The signal that V1 leads is sent into U3/4; The signal that V2 leads is sent into U3/4; The signal that V3 leads is sent into U3/4; The signal that V4 leads is sent into U3/4; The signal that V5 leads is sent into U4/4; The signal that V6 leads is sent into U4/4.. and is directly measured.Augmented limb lead and limbs standard lead are the avR=-0.5 (II+I) that is calculated by CPU; AvL=I-0.5II; AvF=II-0.5I; III=II-I is obviously also synchronous with other signal.

Fig. 5-1 and 5-2 are the digital circuit electrical schematic diagrams of the detector in the digital telephone transmission health of heart scanning device.Monolithic (miniature calculating) machine system mainly is made up of integrated circuit U10-U19 etc.

Fig. 6 is the modem electrical schematic diagram in the digital phone transmission health of heart scanning device.With reference to Fig. 6, modem mainly is made up of integrated circuit U2-U5.

With reference to Fig. 5, power supply circuits mainly are made up of with relevant peripheral components the DC/DC chip MAX756 that boosts of MAXIM company, can be stable 5V direct current output with the voltage inversion of two batteries, battery undervoltage warning signal is provided simultaneously, the power supply of analog circuit when not needing analog circuit work, is used to cut off the power supply of analog circuit by an audion control, with further reduction power supply power consumption, prolong the power-on time of battery.Be the anti-interference of intensifier circuit, all increased the LC filter circuit in power supply and the ground wire.The core of data acquisition and control circuit is CPU87C552, under its will be in being stored in 27C512 supporting control software control, finishes all functions of electrocardio detector.87C552 inside has 8 tunnel 10 A/D, is used to gather the electrocardiosignal of aforementioned electrocardio amplifying circuit output, and the result of collection is stored among the data storage HM628512 (SRAM) with 512KB memory capacity.Control software and also have the function whether automatic detection MODEM exists, after the supporting MODEM of careful electric explorer connects, CPU will be sent to referral centre to whole electrocardiogram (ECG) datas by MODEM by RS-232 interface under corresponding software control.

CD4538 and the 74HC00 that other auxiliary circuit comprises provides the CPU least-significant byte 74HC373 that address latch is used, produce reset signal, the electrically-erasable memorizer 24C02 that is used for store operational parameters, the RVC386 that produces real-time clock signal and supporting related resistors electric capacity.

The work of this device is operation like this, electrocardioelectrode is attached to the specific part of experimenter's health, after its detected electrocardiosignal is delivered to the ecg signal amplifier amplification, output to monolithic (miniature calculating) machine, monolithic (miniature calculating) machine is stored in the data storage RAM after utilizing built-in A/D converter that this signal is transformed into digital quantity.Data in the RAM can through modem, utilize telephone line to be sent to electro cardio signal workstation according to the state of being determined by button.In the case of necessary, the data by the single-chip microcomputer collection can directly send and need not pre-exist in the data storage again by special transmission button transmission by modem.

During use, electrocardioelectrode is measured on the Electrocardiographic rotine positioning the experimenter, linked to each other with detector through the special use line that leads, one of manually selected or periodic recordering method of experimenter, after affirmation, i.e. start record signal.This moment, experimenter's electrocardiosignal was passed to ecg signal amplifier to amplify through the line that leads, convert digital quantity (switching rate 200 times/second to through A/D converter again, 10 of precision), through 18 seconds, experimenter's 12 of the cardioelectric monitor standard that meets is led ECG data and promptly is stored in the healthy scanning device of this heart, and the data storage of the healthy scanning device of this heart can hold for example 100 times measurement data.As long as data are not updated, the data of having stored can keep for a long time.Then, no matter in the memorizer how many data are arranged, be filled with or be not filled with, as long as the experimenter feels the necessity of, after the healthy scanning device of this heart and phone connected, all this batch data automatically can be passed to specified work station by telephone wire with modem.Then, experimenter's receiver that just can pick up the telephone is listened to diagnosis, medical treatment or the first-aid guide that the work station doctor makes according to recording ecg the experimenter.

In other embodiment of the present utility model, the health of heart scanning device also can link to each other with the work station of service centre with telephone wire by obstructed ovennodulation demodulator, but earlier data is sent to a computer, is linked to each other with the work station of service centre by this computer then.Promptly in the case of necessary, the health of heart scanning device is linked to each other with the serial port or the LPT of a computer, and data are delivered to computer by serial port or LPT.Cross the Internet by the computer expert then or other suitable manner is given work station.In this case, health of heart scanning device of the present utility model also needs a serial port or LPT.

Fig. 7 is the work station block diagram of digital telephone transmission health of heart scanning device:

Work station of the present utility model is to be core with the computer, the cardiac monitoring work station of being made up of many computers.With reference to this work station of Fig. 7 is by transmission server (1), the webserver (2) maintenance server (3) monitoring terminal (6,7,8,9), expert terminals (5), telephone wire (10), office's net that data wire (11), printer shared device multiple hardwares equipment such as (4) are formed.

Fig. 8 is the workstation software flow chart of phone transmission health of heart scanning device.(1) is prepared by system, and Operation Centre software (2) detects peripheral hardware MODEM (3), check peripheral hardware (4), if normally enter system master interface (6), by selecting module (7), open files on each of customers (8), by selecting module (10), increase new user (12,18), searching user's information (13,19), compiles user archives (14,20), by selecting module (7), open electrocardiogram (9),, show diagnostic result (15 by selecting module (11), 21) amplify figure and measure it (16,22), printing curve (17,23).

This utility model remote data host-host protocol rule is as follows:

1. transfer of data is a file with each data acquisition segments, when having gathered a plurality of data segment, regards a plurality of files as.

2. the storage format of data acquisition is consulted " data format ".

3. each capture segment is divided into three data blocks as file transfer.

4. behind the correct end of transmission of total data, send the ED piece.

Data transmission procedure as shown in Figure 9.Remote microcomputer sends ACK sign indicating number (1), detector receives that ACK sends data head (2) by form one, whether does remote microcomputer check correct format? (3), continue to send ACK character (5) as correct remote microcomputer, then detector is pressed form two and is sent first blocks of data (7), whether correctly remote microcomputer verifies form (8), as correctly then remote microcomputer send ACK character (10), then detector is pressed form three and is sent first blocks of data (12), does remote microcomputer judge whether form correct? (13), as correctly then remote microcomputer send the ACK character, detector is pressed form four and is sent first blocks of data (17), remote microcomputer receives always will judge form whether correct (18) after the data of detector, as correctly then remote microcomputer send ACK character (20), detector is received ACK character (22), detector sends the data (23) that do not send, if the data that do not send are arranged, then remote microcomputer sends ACK character (1), if not send data, then detector is pressed form five and is sent first blocks of data (24), remote microcomputer judges whether not true the data that received are, as correctly promptly stopping (28), if incorrect then remote microcomputer sends non-ACK character (26), detector is received non-ACK, press form five retransmission datas and close (27), then whether correctly microcomputer judges form (25) again.

Judge form (18) when remote microcomputer whether correctly, if incorrect, then remote microcomputer sends non-ACK character (19), and detector receives that non-ACK sends out data by the form quadruple and closes (21).When remote microcomputer judges that form is incorrect (3,8,13), it will send non-ACK character (4,9,14), detector is pressed form one, retransmission data closes (6,11,16), repeated transmission is judged form whether correct (3 to remote microcomputer, 8,13), send first blocks of data (7), correctly whether long-range verification form (8), as correctly then remote microcomputer send ACK character (10), then detector is pressed form three, sends first blocks of data (12), and does remote microcomputer judge whether form correct? (13), as correctly then remote microcomputer send the ACK character, detector press form four transmission first blocks of data (17).When remote microcomputer judges that form is incorrect (3,8,13), it will send non-ACK character (4,9,14), and detector receives that ACK closes (6) by form one retransmission data or presses form two repeating transmission data passes (11); Or press form three and retransmit data passes (16).

Form one:

SOH, 00H, OFFH, X1, X2,00H, 32H, 36H, 37H, 30H, 00H, 01H, X3 be wherein: X1, X2 are that the data segment segment number ascii of current transmission represents, example is 30H for the 1st section, 31H.The 24th section is 32H, 34H.

X3 add for the grade that is printed on byte data before from X1 to 01H and, least-significant byte only.

Form two:

STX，01H，FEH，X1，........XN，XSUM

Wherein: X1.......XN is 7300 byte image data of taking out successively, XSUM be all byte datas of X1-XN add up and, get least-significant byte.

Form three:

STX，02H，FDH，X1，......XN，XSUM

Wherein, X1......XN is 7300 byte image data of taking out successively, XSUM be all byte datas of X1-XN add up and, get least-significant byte.

Form four:

STX，03H，FCH，X1.......XN，Y1........YN，XSUM

Wherein, X1......XN is 7070 byte image data of taking out successively, Y1....YN

Be the 01H of 230 bytes.

XSUM is X1-XN, all byte datas of Y1--YN add up and, get least-significant byte.

Form five:

SOH，00H，0FFH，00H，01H，01H，01H，01H，01H，01H，01H，01H，01H，09H

This utility model is compared with existing conventional cardiac monitoring technology, has following advantage:

1. the complete machine structure highly compact has been realized microminiaturization, is easy to carry, and is simple to operate, cheap, both has been fit to the personal user and used, and also is fit to the user of collective and uses, and is suitable for especially using in perfectly straight community medicine unit of pulling out phone.

2. can carry out real-time dynamic monitoring to human ecg signal, as long as the experimenter has carried this utility model health of heart scanning device, no matter he is somewhere, also no matter when, as long as the sudden cardiac incident occurs, all can accurately and timely place on record, provide strong means for the doctor makes diagnosis according to electrocardiogram to the experimenter.

3. owing to adopt telephone line transmission electrocardiogram (ECG) data new technique, establish firm material base for popularizing the routine electrocardiogram monitoring, because using the work station of special-purpose software can network by telephone line, this not only can improve the medical level of vast rural area, the masses are benefited, and can make the medical worker who is operated in vast rural area obtain cardiologist's guidance and help, improve their professional ability.

4. adopt digital transmission, office's net work station, can receive several simultaneously and to dozens of patient's signal, the reliability height, error free transmission, capacity of resisting disturbance is strong, and work station also has recording/playback, temporary file queuing, sets up the data base, resource-sharing, the number of writing, maintenances, chargings, forwarding, login, the consultation of doctors, demonstration electrocardiogram, measurement electrocardiogram, checks function such as the past electrocardiogram except that receiving data.

Claims (9)

1. digital health of heart scanning device, comprise: electrocardioelectrode (1), ecg signal amplifier (2), data acquisition unit (3), special liquid crystal display module (4), real-time clock (5), data transmission interface (6), power supply (7), it is characterized in that also comprising an A/D converter, a memorizer, with a modem, the FPDP of its middle controller links to each other with the data wire of memorizer, the address port of controller links to each other with the address wire of memorizer, the DCD end of modem, the RXD end links to each other with controller with TXD.

2. health of heart scanning device according to claim 1 is characterized in that: described modem and other circuit part are installed in the casing.

3. according to the health of heart scanning device of stating of claim 1, it is characterized in that: described modem and other circuit part are installed separately, and just connect when needed.

4. according to the described health of heart scanning device of one of claim 1-3, it is characterized in that: described A/D converter and controller integrate.

5. according to the described health of heart scanning device of one of claim 1-3, it is characterized in that: described memorizer and described controller integrate.

6. according to the described health of heart scanning device of one of claim 1-3, it is characterized in that: described controller is a single-chip microcomputer.

7. according to the described health of heart scanning device of one of claim 1-3, it is characterized in that: the switching rate of described A/D converter is 200 times/second, and precision is 10.

8. according to the described health of heart scanning device of one of claim 1-3, it is characterized in that: described memorizer is EEPROM.

9. according to the described health of heart scanning device of one of claim 1-3, it is characterized in that: remote data host-host protocol with automatic error correction.

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