CN105615868A - Wristwatch type electrocardiogram sensor for intra-body communication - Google Patents
Wristwatch type electrocardiogram sensor for intra-body communication Download PDFInfo
- Publication number
- CN105615868A CN105615868A CN201510962607.2A CN201510962607A CN105615868A CN 105615868 A CN105615868 A CN 105615868A CN 201510962607 A CN201510962607 A CN 201510962607A CN 105615868 A CN105615868 A CN 105615868A
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- China
- Prior art keywords
- circuit
- signal
- electrocardio
- input
- control circuit
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
- A61B5/0006—ECG or EEG signals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/681—Wristwatch-type devices
Abstract
The invention discloses a wristwatch type electrocardiogram sensor for intra-body communication, relates to the field of sensor application and aims to solve the problems that outward radiation electromagnetic signals exist when electrocardiogram is measured by means of Zigbee, Bluetooth and other modes and certain electromagnetic interference is caused to electronic equipment in environment where a wearer is located. The wristwatch type electrocardiogram sensor comprises an electrocardiogram sensitive core, a coupling electrode, a control circuit, a power supply, keys and an LCD, wherein the LCD and the keys are arranged on an upper cover of a wristwatch in parallel; the electrocardiogram sensitive core and the coupling electrode are arranged on the surface, close to skin, of a lower cover of the wristwatch, electrocardiogram signals are collected by the electrocardiogram sensitive core in a photocoupling manner, and a signal processing circuit converts weak electrocardiogram signals into electrical signals which are suitable for modulation and demodulation on the human body surface; the electrocardiogram signals are encoded by a BCH encoding circuit 3-5 and modulated by an FSK modulation circuit, and digital baseband signals which have specified carrier frequency and are suitable for intra-body communication are output and transmitted to the external equipment through the coupling electrode 2.
Description
Technical field
The present invention relates to a kind of human body information and obtain system, belong to sensor application.
Background technology
Field coupling human body communication EGC sensor, adopt the design structure of Wristwatch type, with the signal communication media of human body, contacted with external signal harvester by hands, real-time Transmission can be carried out to measuring the electrocardiosignal obtained, having that to realize anti-electromagnetic interference capability strong, biosensor power consumption is low, can the feature such as long-term stable operation.
When carrying out electrocardio and measuring, its output signal mainly adopts the mode such as Zigbee, bluetooth at present, and this just inevitably wants outside electromagnetic radiation signal, and the electronic equipment in wearer's local environment is produced certain electromagnetic interference.
Summary of the invention
The invention aims to solve to adopt the mode such as Zigbee, bluetooth to carry out electrocardio measurement and there is outside electromagnetic radiation signal, the problem that electronic equipment in wearer's local environment is produced certain electromagnetic interference, it is provided that a kind of Wristwatch type human body communication EGC sensor. This sensor using human body as transmission signal communication media, efficiently avoid electrocardio measure carry out in a wireless form signal output time, the electromagnetic interference problem between himself and surrounding.
Wristwatch type human body communication EGC sensor of the present invention, it includes electrocardio sensitive core body, coupling electrode, control circuit, power supply, button and LCD display;
Watch upper cover is set up in parallel LCD display and button; The nearly skin surface of watch lower cover arranges electrocardio sensitive core body and coupling electrode, and coupling electrode includes signal electrode and signal ground electrode, signal electrode and signal ground electrode and is arranged on the both sides of electrocardio sensitive core body; Control circuit and power supply are set inside watch;
Electrocardio sensitive core body gathers the electrocardiosignal of human body by the human body surface contacted, and the electrocardiosignal outfan of electrocardio sensitive core body is connected with the electrocardiosignal input of control circuit;
The external command outfan of button is connected with the external command input of control circuit;
The display signal output part of control circuit is connected with the display signal input part of LCD display;
The electrocardio modulation signal output part of control circuit is connected with the signal input part of coupling electrode; The electrocardio coupled signal of the assigned frequency modulated is carried out data transmission by coupling electrode by human body surface and external equipment;
Power supply provides working power.
Advantages of the present invention: tested personnel can pass through the health of the data real-time confirmation self on sensor LCD display. And the data in the EGC sensor wrist-watch worn on arm only need to be contacted with coherent signal collecting device by palm, can by the data that store in wrist-watch out. Human body communication EGC sensor adopts human body surface as signal transmission medium, namely ensure that the stable transmission of signal is by the electromagnetic interference avoided outside equipment and instrument. Solve conventional wireless electrocardio metering system in the interactional feature of external electromagnetic environment. Meet in space station etc. and to use the measurement realizing requirement not other human body physiologic information parameters that electrocardiosignal is measured under environment to provide correlation technique to ensure to electromagnetic radiation particular/special requirement again.
Accompanying drawing explanation
Fig. 1 is the four-layer structure schematic diagram of watch;
Fig. 2 is the superstructure schematic diagram of watch;
Fig. 3 is the lower cover structure schematic diagram of watch;
Fig. 4 is the theory diagram of Wristwatch type human body communication EGC sensor of the present invention.
Detailed description of the invention
Detailed description of the invention one: present embodiment is described below in conjunction with Fig. 1 to Fig. 4, Wristwatch type human body communication EGC sensor described in present embodiment, it includes electrocardio sensitive core body 1, coupling electrode 2, control circuit 3, power supply 4, button 5 and LCD display 6;
Watch upper cover is set up in parallel LCD display 6 and button 5; The nearly skin surface of watch lower cover arranges electrocardio sensitive core body 1 and coupling electrode 2, and coupling electrode 2 includes signal electrode 2-1 and signal ground electrode 2-2, signal electrode 2-1 and signal ground electrode 2-2 is arranged on the both sides of electrocardio sensitive core body 1; Control circuit 3 and power supply 4 are set inside watch;
Electrocardio sensitive core body 1 gathers the electrocardiosignal of human body by the human body surface contacted, and the electrocardiosignal outfan of electrocardio sensitive core body 1 is connected with the electrocardiosignal input of control circuit 3;
The external command outfan of button 5 is connected with the external command input of control circuit 3;
The display signal output part of control circuit 3 is connected with the display signal input part of LCD display 6;
The electrocardio modulation signal output part of control circuit 3 is connected with the signal input part of coupling electrode 2; The electrocardio coupled signal of the assigned frequency modulated is carried out data transmission by coupling electrode 2 by human body surface and external equipment;
Power supply 4 provides working power.
Control circuit 3 includes microprocessor 3-1, amplifying circuit 3-2, bandwidth-limited circuit 3-3, A/D change-over circuit 3-4, Bose-Chaudhuri-Hocquenghem Code circuit 3-5 and FSK modulation circuit 3-6;
The input of amplifying circuit 3-2 is as the electrocardiosignal input of control circuit 3, the outfan of amplifying circuit 3-2 is connected with the input of bandwidth-limited circuit 3-3, the outfan of bandwidth-limited circuit 3-3 is connected with the input end of analog signal of A/D change-over circuit 3-4, and the digital signal output end of A/D change-over circuit 3-4 is connected with the electrocardiosignal input of microprocessor 3-1; The electrocardiosignal outfan of microprocessor 3-1 is connected with the input of Bose-Chaudhuri-Hocquenghem Code circuit 3-5, the outfan of Bose-Chaudhuri-Hocquenghem Code circuit 3-5 is connected with the input of FSK modulation circuit 3-6, and the outfan of FSK modulation circuit 3-6 modulates signal output part as the electrocardio of control circuit 3.
Power supply 4 selects lithium battery.
The watch of present embodiment is four-layer structure, as shown in Figure 1, upper cover is ground floor, it is provided with LCD display 6 and button 5, lower cover is the 4th layer, againsts skin and is provided with electrocardio sensitive core body 1 and coupling electrode 2, is provided with the second layer and third layer between upper and lower cover, the second layer is power supply 4, and third layer is control circuit 3.
Electrocardio sensitive core body 1 is positioned at the center of watch housing bottom; Signal electrode 2-1 and signal ground electrode 2-2 is positioned at the outside of electrocardio sensing element 1 and becomes two list structures; LCD display 6 shows measurement result, two kinds of display patterns, and a kind of cardioelectric monitor signal for showing tested personnel is a kind of for showing current date-time; The heart electrical output signal whether showing monitoring in real time is set by button 5, electrocardiosignal shows in the way of oscillogram, its key index being carried out numerical monitor, watchband adopts the elastic fiber material of adjustable-tightness, it is ensured that what can meet different crowd wears requirement simultaneously.
Electrocardio sensitive core body 1 adopts the mode of photoelectric coupling, by identifying the electrocardiosignal of tested personnel with human contact, this electrocardiosignal is the bio signal of �� V��mV, is the electrocardiosignal of faint rank, the faint electrocardiosignal that telepathy core body is collected by signal processing circuit 3 is converted into and is adapted at the signal of telecommunication that human body surface is modulated demodulating, this faint electrocardiosignal is amplified by amplifying circuit 3-2, bandwidth-limited circuit 3-3 filtering and noise reduction sound, A/D change-over circuit 3-4 is converted to the voltage signal meeting field coupling output after processing, it is sent to microprocessor 1, the signal of collection is stored the memorizer of therein by microprocessor 1, and show in LCD display 6, when needs transmission is to peripherals, external equipment is touched with hands, this electrocardiosignal is through Bose-Chaudhuri-Hocquenghem Code circuit 3-5 coding and FSK modulation circuit 3-6 modulation, output designated carrier frequency, it is suitable for the digital baseband signal of human body communication, and it is transferred to external equipment by coupling electrode 2.
Adopt fsk signal modulation system, Binary Zero/1 digital signal obtained after Bose-Chaudhuri-Hocquenghem Code circuit 3-5 is encoded, modulate two respectively and be suitable to two frequencies in human skin's transmission, owing to temperature signal belongs to tempolabile signal, consider tempolabile signal during temperature signal, the factors such as quantity of information is relatively low, inverse relation between signal skin depth and signal frequency, design 200kHz and 250kHz is as the modulating frequency of the temperature signal exported with Binary Zero/1 digital signal pattern. When adopting plural physiology information detecting end to communicate with data receiver, the mode of frequency division multiplexing can be adopted to realize the modulation /demodulation when body surface communicates of multiple signal.
Realizing field coupling with two electrodes and complete sensor output signal coupling on human body, one electrode of two electrodes is signal electrode 2-1, and another is signal ground electrode 2-2. The electric field formed between two electrodes, higher than the electric field intensity formed to other directions, make the transmission signal of inflow human body mainly be transmitted along this direction. Further, since signals selected transmission frequency is relatively low, the Kelvin effect of signal is good, so the size of coupling electrode can control in less level. Using human body as transmission signal communication media, efficiently avoid electrocardio measure carry out in a wireless form signal output time, the electromagnetic interference problem between himself and surrounding.
Claims (3)
1. Wristwatch type human body communication EGC sensor, it is characterized in that, it includes electrocardio sensitive core body (1), coupling electrode (2), control circuit (3), power supply (4), button (5) and LCD display (6);
Watch upper cover arranges LCD display (6) and button (5); The nearly skin surface of watch lower cover arranges electrocardio sensitive core body (1) and coupling electrode (2), coupling electrode (2) includes signal electrode (2-1) and signal ground electrode (2-2), signal electrode (2-1) and signal ground electrode (2-2) and is arranged on the both sides of electrocardio sensitive core body (1); Control circuit (3) and power supply (4) are set inside watch;
Electrocardio sensitive core body (1) gathers the electrocardiosignal of human body by the human body surface contacted, and the electrocardiosignal outfan of electrocardio sensitive core body (1) is connected with the electrocardiosignal input of control circuit (3);
The external command outfan of button (5) is connected with the external command input of control circuit (3);
The display signal output part of control circuit (3) is connected with the display signal input part of LCD display (6);
The electrocardio modulation signal output part of control circuit (3) is connected with the signal input part of coupling electrode (2); The electrocardio coupled signal of the assigned frequency modulated is carried out data transmission by coupling electrode (2) by human body surface and external equipment;
Power supply (4) provides working power.
2. Wristwatch type human body communication EGC sensor according to claim 1, it is characterized in that, control circuit (3) includes microprocessor (3-1), amplifying circuit (3-2), bandwidth-limited circuit (3-3), A/D change-over circuit (3-4), Bose-Chaudhuri-Hocquenghem Code circuit (3-5) and FSK modulation circuit (3-6);
The input of amplifying circuit (3-2) is as the electrocardiosignal input of control circuit (3), the outfan of amplifying circuit (3-2) is connected with the input of bandwidth-limited circuit (3-3), the outfan of bandwidth-limited circuit (3-3) is connected with the input end of analog signal of A/D change-over circuit (3-4), and the digital signal output end of A/D change-over circuit (3-4) is connected with the electrocardiosignal input of microprocessor (3-1); The electrocardiosignal outfan of microprocessor (3-1) is connected with the input of Bose-Chaudhuri-Hocquenghem Code circuit (3-5), the outfan of Bose-Chaudhuri-Hocquenghem Code circuit (3-5) is connected with the input of FSK modulation circuit (3-6), and the outfan of FSK modulation circuit (3-6) modulates signal output part as the electrocardio of control circuit (3).
3. Wristwatch type human body communication EGC sensor according to claim 1, it is characterised in that power supply (4) selects lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510962607.2A CN105615868A (en) | 2015-12-18 | 2015-12-18 | Wristwatch type electrocardiogram sensor for intra-body communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510962607.2A CN105615868A (en) | 2015-12-18 | 2015-12-18 | Wristwatch type electrocardiogram sensor for intra-body communication |
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| Publication Number | Publication Date |
|---|---|
| CN105615868A true CN105615868A (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510962607.2A Pending CN105615868A (en) | 2015-12-18 | 2015-12-18 | Wristwatch type electrocardiogram sensor for intra-body communication |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106943126A (en) * | 2017-03-28 | 2017-07-14 | 中国电子科技集团公司第四十九研究所 | Special operation condition environment, sign, motion monitoring system |
| WO2017219325A1 (en) * | 2016-06-23 | 2017-12-28 | 彭鹏 | Smart wristwatch |
| CN109875508A (en) * | 2019-02-18 | 2019-06-14 | 广西科技大学 | The acquisition system of characteristics of human body's information |
| CN110251121A (en) * | 2019-06-11 | 2019-09-20 | 上海工程技术大学 | A kind of the elder's health management all the period of time monitoring system |
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| WO2006062112A1 (en) * | 2004-12-08 | 2006-06-15 | Seiko Instruments Inc. | Information transmission through-human-body system and transmitter/receiver |
| WO2013091379A1 (en) * | 2011-12-20 | 2013-06-27 | 中国科学院深圳先进技术研究院 | Human body communication system and health service network based on same |
| CN104706338A (en) * | 2013-12-13 | 2015-06-17 | 金光耀 | Wristlet device and sign information detection method |
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2015
- 2015-12-18 CN CN201510962607.2A patent/CN105615868A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001308803A (en) * | 2000-04-26 | 2001-11-02 | Matsushita Electric Works Ltd | Data communication system, security system for apparatus utilizing the system, and portable telephone and portable information terminal utilizing the data communication system or the security system |
| WO2006062112A1 (en) * | 2004-12-08 | 2006-06-15 | Seiko Instruments Inc. | Information transmission through-human-body system and transmitter/receiver |
| WO2013091379A1 (en) * | 2011-12-20 | 2013-06-27 | 中国科学院深圳先进技术研究院 | Human body communication system and health service network based on same |
| CN104706338A (en) * | 2013-12-13 | 2015-06-17 | 金光耀 | Wristlet device and sign information detection method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017219325A1 (en) * | 2016-06-23 | 2017-12-28 | 彭鹏 | Smart wristwatch |
| CN106943126A (en) * | 2017-03-28 | 2017-07-14 | 中国电子科技集团公司第四十九研究所 | Special operation condition environment, sign, motion monitoring system |
| CN109875508A (en) * | 2019-02-18 | 2019-06-14 | 广西科技大学 | The acquisition system of characteristics of human body's information |
| CN110251121A (en) * | 2019-06-11 | 2019-09-20 | 上海工程技术大学 | A kind of the elder's health management all the period of time monitoring system |
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Application publication date: 20160601 |
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