CN1290469C - Method and system for wireless concentrative warding electrocardiogram datas - Google Patents
Method and system for wireless concentrative warding electrocardiogram datas Download PDFInfo
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- CN1290469C CN1290469C CN 03113846 CN03113846A CN1290469C CN 1290469 C CN1290469 C CN 1290469C CN 03113846 CN03113846 CN 03113846 CN 03113846 A CN03113846 A CN 03113846A CN 1290469 C CN1290469 C CN 1290469C
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Abstract
The present invention relates to a method and a system for wirelessly and intensively monitoring electrocardiodata, and the system comprises a main station (50), a wired Ethernet (40), a telemetering receiving box (30) and a monitoring transmitter (20). The present invention realizes the goal of wirelessly and intensively monitoring electrocardiodata in a networking mode by setting the serial numbers of the monitoring transmitter (20) and the telemetering receiving box (30), allocating wireless channel resources, determining a frame structure and a data compression algorithm, setting communication protocols and data transmission verification modes, adopting an electricity saving operating mode, and adopting a method of only carrying out wireless digital communication between the monitoring transmitter and the telemetering receiving box.
Description
Technical field the present invention relates to the system of wireless transmission, the system equipment of especially wireless concentrated monitoring electrocardiogram (ECG) data.
The background technology prior art is wireless, and concentrated monitoring electrocardiogram (ECG) data one is to adopt analogue modulation system, adopts wireless local area network technology besides.
The analog-modulated technology generally all is to remove to form high-frequency circuit by discrete component; Because integrated level is low, element is too much, and the complicated volume of circuit is big and the cost height is unfavorable for large-scale production; Its pure analog-modulated high-frequency circuit of this technology lacks the error correction link, is subject to disturb be difficult to accomplish accurate transmitting-receiving, and this technology is high and can't correct because of the bit error rate, is eliminated.
And wireless local area network technology is owing to reasons such as software protocols, and technical sophistication causes development difficulty big.Wireless network card that networking is necessary and wireless access device price height are unfavorable for miniaturization and large-scale production.The power consumption of chipset that satisfies at present protocol of wireless local area network in the world is very big, need microprocessor (CPU) operational network operating system in the system, structure is comparatively complicated, be not easy to make the product of wearing (Patient-Worn) formula, this technology is mainly used in realizing the Wireless Networking function on the Portable, multiple parameter monitor, is not real practical Mobile Telemetry monitor or Worn type product.
The summary of the invention the technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part and the method and system equipment that proposes a kind of improved wireless concentrated monitoring electrocardiogram (ECG) data.The present invention physically is made of main website, wired ethernet, remote measurement receiving magazine, monitoring emitter, the sequence number of the present invention by monitoring emitter and remote measurement receiving magazine is set, distribute radio channel resource, determine frame structure and data compression algorithm, communications protocol and transfer of data verification mode are set, adopt power-saving working mode, and only adopt methods such as between monitoring emitter and remote measurement receiving magazine, carrying out wireless digital communication, realize the wireless concentrated monitoring electrocardiogram (ECG) data of networking.
It is as follows that the present invention solves the problems of the technologies described above the technical scheme of taking:
A kind of system of wireless concentrated monitoring electrocardiogram (ECG) data is proposed, comprise: the pico computer main website, and the bitcom and the management software that in main website, are provided with, also comprise wired ethernet, described main website connects with Ethernet by network interface card, it is characterized in that: also comprise 1～64 remote measurement receiving magazine, 1～8 monitoring emitter wireless data transmission in described each remote measurement receiving pit and the own control area receives electrocardiogram (ECG) data; 433MHz frequency range, channel spacing 25KHz are adopted in wireless telecommunications between described remote measurement receiving pit and the monitoring emitter.
Described electrocardiogram (ECG) data was compressed by difference algorithm before wireless data transmission.Described electrocardiogram (ECG) data difference algorithm compression comprises: first sampled data quilt is record exactly, the sampled data of back several successive is replaced by the difference value with its previous sampled value, set every group of transmission data and comprise 2 bytes of synchronous code, 1 byte of command code, 2 bytes of user data, 2 bytes of CRC check.
Compared with prior art, electrocardiogram (ECG) data of the present invention adopts digital modulation technique, wrong verifying function, the transmission that makes data accurately and reliably, the present invention adopts wired ethernet and data acquisition to combine, and the cost of system is reduced greatly.
Description of drawings Fig. 1 is the system block diagram of the wireless concentrated monitoring electrocardiogram (ECG) data of the present invention system;
Fig. 2 is the electrical schematic diagram of monitoring emitter microcontroller and radio transmitter among the present invention;
Fig. 3 is the electrical schematic diagram of remote measurement receiving magazine wireless receiving and micro-control circuit among the present invention;
Fig. 4 is a remote measurement receiving magazine ethernet interface circuit schematic diagram among the present invention;
Fig. 5 is the electrical schematic diagram of monitoring emitter sensing amplifying circuit among the present invention;
Fig. 6 is the monitoring emitter electrical schematic diagram of testing circuit of coming off that leads among the present invention;
Fig. 7 is the electrical schematic diagram of monitoring transmitter power translation circuit among the present invention.
The specific embodiment is described in further detail below in conjunction with most preferred embodiment shown in the accompanying drawing: the system of concentrated monitoring electrocardiogram (ECG) data system that the present invention is wireless as shown in Figure 1, comprise: pico computer main website 50, and the bitcom and the management software that in main website 50, are provided with, also comprise wired ethernet 40, described main website 50 connects with Ethernet 40 by network interface card, especially:
Also comprise 1～64 remote measurement receiving magazine 30,1～8 monitoring emitter 20 wireless data transmission in described each remote measurement receiving pit 30 and the own control area receive electrocardiogram (ECG) data; 433MHz frequency range, channel spacing 25KHz are adopted in wireless telecommunications between described remote measurement receiving pit 30 and the monitoring emitter 20.
Set patient of each monitoring emitter 20 monitoring, in real time the electrocardiogram (ECG) data that records is transferred to remote measurement receiving magazine 30.
In preferred forms, described wireless data transmission is used the narrowband modulation technology of Guassian Minimum Shift Keying GMSK, modulation index 0.5, baud rate 4800/9600bps, one-way transmission.
In preferred forms, described Ethernet 40 carries out transfer of data with each remote measurement receiving pit 30 by ethernet interface circuit 33, and communication interface meets the 10base-T protocol specification.
Described electrocardiogram (ECG) data was compressed by difference algorithm before wireless data transmission.Described electrocardiogram (ECG) data difference algorithm compression comprises: first sampled data quilt is record exactly, and the sampled data of back several successive is replaced by the difference value with its previous sampled value, and compression ratio was near 2: 1.
Set every group of transmission data and comprise 2 bytes of synchronous code, 1 byte of command code, 2 bytes of user data, 2 bytes of CRC check.
In preferred forms, comprise radiating circuit 21, micro-control circuit 22, sensing amplifying circuit 23 in the described monitoring emitter 20, testing circuit 24 and the power converting circuit 25 of coming off leads; As shown in Figure 5, two operational amplifier U100, U101 of sensing amplifying circuit 23 connect and are that voltage keeper form, its in-phase input end meet left side C-LL and the right side C-RA that leads that leads respectively, and inverting input and output are connected together as output; The lead output of voltage keeper U101 of a left side connects the in-phase input end of difference amplifier U102 and the left side signal detection end that comes off that leads, the lead output of voltage keeper U100 of the right side connects the inverting input of difference amplifier U102 and the right side signal detection end that comes off that leads, after difference amplifier U102 amplifies electrocardiosignal connecting resistance R110, R111, R112 and the capacitor C 103 of output, high pass that C104, C105 form, low pass filter, connect the voltage keeper that an operational amplifier U103 constitutes again, its output is connected to the input of micro-control circuit 22.
In preferred forms, as shown in Figure 6, the described testing circuit 24 that comes off of leading constitutes the voltage keeper by operational amplifier U106A, U106B, self-sensing amplifying circuit 23 inserts, and left and right come off signal detection end RA, the LL of leading inserts its in-phase input end, and output FALL-RA, FALL-LL are connected to the input of micro-control circuit 22.
In preferred forms, as shown in Figure 7, changer U107, the U109 of power converting circuit 25 adopt MAX1675 in the described monitoring emitter 20, the positive pole of set of cells BATTERY meets input the 7th foot LX of two changer MAX1675 respectively by inductance L 100, L101, and the 2nd, 3 feet of output+3.3V changer are unsettled; The 2nd foot LBI of output+5V changer is connected on the dividing point that is made of two resistance R 118, R119, the 3rd foot LBO by a resistance R 140 be connected on output+5V on.
In preferred forms, shown in Fig. 3,4, comprise wireless receiving circuit 31, micro-control circuit 32 and ethernet interface circuit 33 in the described remote measurement receiving magazine 30; Wireless receiving circuit 31 employed less radio-frequency receptors adopt TRF6900 in the described remote measurement receiving magazine 30; Described micro-control circuit 32 employed microcontrollers adopt MSP430; The 25th, 26,27 foot: the STORBE (serial line interface gate pulse) of TRF6900, CLOCK (serial line interface clock), three lead-in wires of DATA (serial line interface data) connect 3 I/O mouth lines of MSP430.Ethernet interface circuit 33 comprises microcontroller chip U200, network controller chip U201 and Network Physical Separator chip U202 in the described remote measurement receiving magazine 30; Network controller chip U201 is connected the data wire of 8 position datawires with microcontroller chip U200, an interrupt request line is met interruption tie-in line INT0 or the INT1 of microcontroller chip U200; The serial ports TX of MSP430 is connected with RX in the serial ports RX of microcontroller chip U200 and TX and the micro-control circuit 32, carries out data communication; Data transmission line TPTX+, the TPTX-of network controller chip U201, data receive line TPRX+, TPRX-and are connected with the RJ45 interface after Network Physical Separator chip U202 isolates, and connect Ethernet 40.
In preferred forms, as shown in Figure 2, left and right signal FALL-RA, the FALL-LL of coming off that lead that the microcontroller of micro-control circuit 22 adopts MSP430, three I/O mouths of its 59th, 60,61 foot line to connect core signal ECG that sensing amplifying circuit 23 sends here and the testing circuit 24 that comes off by leading is sent here in the described monitoring emitter 20; Three I/O mouths of its 12nd, 13,14 foot line connects CALL, KEY2, three buttons of KEY3, is used for the input operation instruction; 8 I/O mouths of its 20th～27 foot line meets toggle switch SW203, is used for determining the SEQ.XFER of monitoring emitter itself; 7 I/O mouths of its 29th, 31,36,37,38,39,40 foot line is connected with the corresponding pin of emitter in the radiating circuit 21, the transmission data.
Electrocardiogram data information flows to and to be: about lead and fetch the faint electrocardiosignal of human body 10 that---signal enters sensing amplifying circuit 23 and amplifies shaping, and------three road signals (being collectively referred to as the electrocardiogram (ECG) data signal) enter micro-control circuit 22----electrocardiogram (ECG) data signal and enter radiating circuit 21----wireless transmission---wireless receiving circuit 31 wireless receivings in the remote measurement receiving magazine 30----enter micro-control circuit 32----to enter ethernet interface circuit 33----and enter Ethernet 40----and enter main frame 50----and show for output electrocardiosignal and the detection signal that comes off that leads about testing circuit 24 outputs that comes off through leading.
Above flow process is an one-way transmission.
The main components and parts of most preferred embodiment of the present invention are as shown in the table:
| Element | Title | Model |
| U100 U101 U102 | Operational amplifier | LM4250 |
| U103 | Operational amplifier | MAX491 |
| D100 D101 D102 D103 | The protection diode | BAV99WT1 |
| U200 | Microcontroller | AT89C51 |
| U107 U109 | The DC/DC changer | MAX1675 |
| U106 | Operational amplifier | MAX417 |
| U202 | Isolator | LAN7236 |
Facts have proved, simple structure of the present invention, reliable and stable, be a kind of Mobile Telemetry custodial care facility of practicality.
Claims (5)
1. the system of a wireless concentrated monitoring electrocardiogram (ECG) data, comprise: pico computer main website (50), and the bitcom and the management software that are provided with in main website (50) also comprise wired ethernet (40), described main website (50) connects with Ethernet (40) by network interface card, it is characterized in that:
Also comprise remote measurement receiving magazine (30), monitoring emitter (20) wireless data transmission receives electrocardiogram (ECG) data in described remote measurement receiving magazine (30) and the own control area; The 433MHz frequency range is adopted in wireless telecommunications between described remote measurement receiving magazine (30) and the monitoring emitter (20), channel spacing 25KHz,
Described wireless data transmission is used the narrowband modulation technology of Guassian Minimum Shift Keying GMSK, modulation index 0.5, and baud rate 4800bps, one-way transmission,
Described electrocardiogram (ECG) data was compressed by difference algorithm before wireless data transmission, described electrocardiogram (ECG) data difference algorithm compression comprises: first sampled data quilt is record exactly, the sampled data of back several successive is replaced by the difference value with its previous sampled value, set every group of transmission data and comprise 2 bytes of synchronous code, 1 byte of command code, 2 bytes of user data, 2 bytes of CRC check.
2. the system of wireless concentrated monitoring electrocardiogram (ECG) data according to claim 1 is characterized in that: comprise radiating circuit (21), micro-control circuit (22), sensing amplifying circuit (23) in the described monitoring emitter (20), testing circuit (24) and the power converting circuit (25) of coming off leads; Two operational amplifier U100, U101 of sensing amplifying circuit (23) connect and are that voltage keeper form, its in-phase input end meet left side C-LL and the right side C-RA that leads that leads respectively in the described monitoring emitter (20), and inverting input and output are connected together as exporting; The lead output of voltage keeper U101 of a left side connects the in-phase input end of difference amplifier U102 and the left side signal detection end that comes off that leads, the lead output of voltage keeper U100 of the right side connects the inverting input of difference amplifier U102 and the right side signal detection end that comes off that leads, after difference amplifier U102 amplifies electrocardiosignal connecting resistance R110, R111, R112 and the capacitor C 103 of output, high pass that C104, C105 form, low pass filter, connect the voltage keeper that an operational amplifier U103 constitutes again, its output is connected to the input of micro-control circuit (22); The described testing circuit (24) that comes off of leading constitutes the voltage keeper by operational amplifier U106A, U106B, self-sensing amplifying circuit (23) inserts, and left and right come off signal detection end RA, the LL of leading inserts its in-phase input end, and output FALL-RA, FALL-LL are connected to the input of micro-control circuit (22).
3. according to the system of the described wireless concentrated monitoring electrocardiogram (ECG) data of claim 2, it is characterized in that: changer U107, the U109 of power converting circuit (25) adopt MAX1675 in the described monitoring emitter (20), the positive pole of set of cells BATTERY meets input the 7th foot LX of two changer MAX1675 respectively by inductance L 100, L101, and the 2nd, 3 feet of output+3.3V changer are unsettled; The 2nd foot LBI of output+5V changer is connected on the dividing point that is made of two resistance R 118, R119, the 3rd foot LBO by a resistance R 140 be connected on output+5V on.
4. according to the system of the described wireless concentrated monitoring electrocardiogram (ECG) data of claim 1, it is characterized in that: comprise wireless receiving circuit (31), micro-control circuit (32) and ethernet interface circuit (33) in the described remote measurement receiving magazine (30); The employed less radio-frequency receptor of wireless receiving circuit (31) adopts TRF6900 in the described remote measurement receiving magazine (30); The employed microcontroller of described micro-control circuit (32) adopts MSP430; The 25th, 26,27 feet of TRF6900; STORBE serial line interface gate pulse, CLOCK serial line interface clock, three lead-in wires of DATA serial line interface data connect 3 I/O mouth lines of MSP430, and ethernet interface circuit (33) comprises microcontroller chip U200, network controller chip U201 and Network Physical Separator chip U202 in the described remote measurement receiving magazine (30); Network controller chip U201 is connected the data wire of 8 position datawires with microcontroller chip U200, an interrupt request line is met interruption tie-in line INT0 or the INT1 of microcontroller chip U200; The serial ports RX of microcontroller chip U200 is connected with RX with the serial ports TX of the middle MSP430 of micro-control circuit (32) with TX, carries out data communication; Data transmission line TPTX+, the TPTX-of network controller chip U201, data receive line TPRX+, TPRX-and are connected with the RJ45 interface after Network Physical Separator chip U202 isolates, and connect Ethernet (40).
5. according to the system of the described wireless concentrated monitoring electrocardiogram (ECG) data of claim 1, it is characterized in that: the microcontroller of micro-control circuit (22) adopts MSP430 in the described monitoring emitter (20), left and right signal FALL-RA, the FALL-LL of coming off that lead that three I/O mouths of its 59th, 60,61 foot line connects core signal ECG that sensing amplifying circuit (23) sends here and the testing circuit (24) that comes off by leading is sent here; Three I/O mouths of its 12nd, 13,14 foot line connects CALL, KEY2, three buttons of KEY3, is used for the input operation instruction; 8 I/O mouths of its 20th～27 foot line meets toggle switch SW203, is used for determining the SEQ.XFER of monitoring emitter itself; 7 I/O mouths of its 29th, 31,36,37,38,39,40 foot line is connected with the corresponding pin of emitter in the radiating circuit (21), the transmission data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03113846 CN1290469C (en) | 2003-02-26 | 2003-02-26 | Method and system for wireless concentrative warding electrocardiogram datas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03113846 CN1290469C (en) | 2003-02-26 | 2003-02-26 | Method and system for wireless concentrative warding electrocardiogram datas |
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| CN1524492A CN1524492A (en) | 2004-09-01 |
| CN1290469C true CN1290469C (en) | 2006-12-20 |
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| CN 03113846 Expired - Fee Related CN1290469C (en) | 2003-02-26 | 2003-02-26 | Method and system for wireless concentrative warding electrocardiogram datas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103815895A (en) * | 2014-01-05 | 2014-05-28 | 深圳市中瑞奇电子科技有限公司 | ECG (electrocardiogram) data compression and decoding method |
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| CN105326497A (en) * | 2015-12-04 | 2016-02-17 | 钦州学院 | Wireless multi-bed electrocardio monitoring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103815895A (en) * | 2014-01-05 | 2014-05-28 | 深圳市中瑞奇电子科技有限公司 | ECG (electrocardiogram) data compression and decoding method |
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| CN1524492A (en) | 2004-09-01 |
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