CN104168042B - Human body implantation type communication means and system based on inductance coupling high - Google Patents
Human body implantation type communication means and system based on inductance coupling high Download PDFInfo
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- CN104168042B CN104168042B CN201410026927.2A CN201410026927A CN104168042B CN 104168042 B CN104168042 B CN 104168042B CN 201410026927 A CN201410026927 A CN 201410026927A CN 104168042 B CN104168042 B CN 104168042B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a kind of human body implantation type communication means based on inductance coupling high. The method mainly comprises: at inside of human body, implanted electronic equipment is set, this implanted electronic equipment comprises: converter, signal modulator and signal projector, the information conversion that described converter sends needs is the signal of telecommunication, described signal modulator carries out modulation treatment to the described signal of telecommunication and obtains carrier signal, described carrier signal is transformed into electromagnetic wave by described signal projector, by described electromagnetic wave to human body emitted outside. The present invention is by receiving coil and transmitting coil generation inductance coupling high, between implanted electronic equipment and service terminal, carry out transmission information by electromagnetic wave, make communication range be confined to the communication of human body near-end, can between different human bodies, not cause covering area overlapping, there is high security and operating factor of highband, there is the advantages such as low in energy consumption and shadow-free effect simultaneously, thereby a kind of safe, efficient, reliable human body communication system is provided.
Description
Technical field
The present invention relates to human body communication technology field, relate in particular to a kind of human body based on inductance coupling high and implantFormula communication means and system.
Background technology
The existing human body communication system based on health service, comprises some be distributed in human body and externalThe node of each several part, node comprises the implanted electricity that is arranged on inside of human body with telecommunications functionsSubset, and be arranged on the service terminal of human external. Warp between service terminal and implanted electronic equipmentConnected by network, the information that node obtains warp after human body is propagated is sent to clothes by electronic equipmentBusiness terminal, the information that service terminal sends is sent to people's body segment after network and personal electronic equipments propagationPoint.
At present, the service terminal in above-mentioned human body communication system and implanted electronic equipment adopt bluetooth,The Zigbee communication technology of WiFi or short distance, low-power consumption is carried out radio communication. Wherein, bluetooth and shortThe communication distance of the Zigbee communication system of distance, low-power consumption is distant, easily between different human bodies, makesBecome covering area overlapping, reduced security of system; The power consumption of bluetooth and WiFi is high, and the number of ZigbeeToo low according to rate, and networking is not easy. Therefore, existing human body communication system adopts above-mentioned bluetooth, WiFiOr the Zigbee communication technology of short distance, low-power consumption, has caused the merit of valuing most in human body communication systemThe performances such as consumption, security, communication robustness are had a greatly reduced quality. Therefore, a kind of safety of exploitation, efficient, canThe human body communication system leaning on is a problem demanding prompt solution.
Summary of the invention
Embodiments of the invention provide a kind of human body implantation type communication means based on inductance coupling high and have beenSystem, to realize safety, efficient, reliable human body communication system.
The invention provides following scheme:
A human body implantation type communication means based on inductance coupling high, comprising:
At inside of human body, implanted electronic equipment is set, this implanted electronic equipment comprises: converter, letterNumber modulator and signal projector, the information conversion that described converter sends needs is the signal of telecommunication, described inSignal modulator carries out modulation treatment to the described signal of telecommunication and obtains carrier signal, and described signal projector is by instituteState carrier signal and be transformed into electromagnetic wave, by described electromagnetic wave to human body emitted outside.
Described method also comprises:
Described signal modulator and signal projector are realized by signal transmission circuit, described signal transmittingCircuit comprises ASK modulation circuit, power amplifier and transmitting coil, by adjusting described power amplifierFrequency adjust the transmitting power of described transmitting coil.
Described method also comprises:
At human external, service terminal is set, this service terminal comprises: transducer, demodulator and signal connectReceive device, described signal receiver receives the described electromagnetism of described signal projector transmitting by electromagnetic inductionRipple, is converted to carrier signal by described electromagnetic wave, and described demodulator carries out solution to described carrier signal to be mediatedReason obtains the signal of telecommunication, and described transducer is information by described converting electrical signal.
Described demodulator and signal receiver are realized by signal receiving circuit, described signal receiving circuit bagDraw together rectification circuit, filter circuit, receiving coil, series resonant circuit, demodulator and load, described wholeCurrent circuit, filter circuit, receiving coil, series resonant circuit and load are connected mutually, described rectified currentRoad comprises double-diode rectifier.
Described demodulator comprises demodulator circuit and clock recovery circuitry, and described demodulator circuit comprises amplitude dividing potential dropDevice, metal-oxide-semiconductor, wave detector triode, passive belt bandpass filter and hysteresis comparator, described amplitude dividing potential dropDevice is arranged on the input of described demodulator circuit, is formed by two capacitances in series, described wave detector three utmost pointsPipe, passive belt bandpass filter and hysteresis comparator are connected mutually.
A human body implantation type communication system based on inductance coupling high, comprising:
Implanted electronic equipment, for being arranged on inside of human body, comprising: converter, signal modulator andSignal projector, the information conversion that described converter sends needs is the signal of telecommunication, described signal modulatorThe described signal of telecommunication is carried out to modulation treatment and obtain carrier signal, described signal projector is by described carrier signalBe transformed into electromagnetic wave, by described electromagnetic wave to human body emitted outside.
Described signal modulator and signal projector are realized by signal transmission circuit, and described signal is sent outRadio road comprises ASK modulation circuit, power amplifier and transmitting coil, by adjusting described power amplificationThe frequency of device is adjusted the transmitting power of described transmitting coil.
Described system also comprises:
Service terminal, for being arranged on human external, service terminal comprises: transducer, demodulator and letterNumber receiver, described signal receiver receives the described electricity of described signal projector transmitting by electromagnetic inductionMagnetic wave, is converted to carrier signal by described electromagnetic wave, and described demodulator carries out demodulation to described carrier signalProcessing obtains the signal of telecommunication, and described transducer is information by described converting electrical signal.
Described demodulator and signal receiver are realized by signal receiving circuit, described signal receiving circuit bagDraw together rectification circuit, filter circuit, receiving coil, series resonant circuit, demodulator and load, described wholeCurrent circuit, filter circuit, receiving coil, series resonant circuit and load are connected mutually, described rectified currentRoad comprises double-diode rectifier, in receiving coil and signal transmission circuit in described signal receiving circuitTransmitting coil generation inductance coupling high.
Described demodulator comprises demodulator circuit and clock recovery circuitry, and described demodulator circuit comprises amplitude dividing potential dropDevice, metal-oxide-semiconductor, wave detector triode, passive belt bandpass filter and hysteresis comparator, described amplitude dividing potential dropDevice is arranged on the input of described demodulator circuit, is formed by two capacitances in series, described wave detector three utmost pointsPipe, passive belt bandpass filter and hysteresis comparator are connected mutually.
The technical scheme being provided by the embodiment of the invention described above can find out, the embodiment of the present invention is by connecingTake-up circle and transmitting coil generation inductance coupling high are passed through electricity between implanted electronic equipment and service terminalMagnetic wave carrys out transmission information, makes communication range be confined to the communication of human body near-end, can be between different human bodiesCause covering area overlapping, there is high security and operating factor of highband, have low in energy consumption and without the moon simultaneouslyThe advantages such as shadow effect, thus a kind of safe, efficient, reliable human body communication system is provided.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, institute in describing embodiment belowNeed the accompanying drawing using to be briefly described, apparently, the accompanying drawing in the following describes is only thisBright some embodiment, for those of ordinary skill in the art, are not paying creative workUnder prerequisite, can also obtain according to these accompanying drawings other accompanying drawing.
A kind of human body implantation type communication means based on inductance coupling high that Fig. 1 provides for the embodiment of the present invention oneProcess chart;
The part circuit structure figure of a kind of signal transmission circuit that Fig. 2 provides for the embodiment of the present invention one;
The part circuit structure figure of a kind of signal receiving circuit that Fig. 3 provides for the embodiment of the present invention one;
The part circuit structure schematic diagram of a kind of demodulator that Fig. 4 provides for the embodiment of the present invention one;
A kind of human body implantation type communication system based on inductance coupling high that Fig. 5 provides for the embodiment of the present invention two,Concrete structure figure.
Detailed description of the invention
For ease of the understanding to the embodiment of the present invention, below in conjunction with accompanying drawing taking several specific embodiments as exampleBe further explained explanation, and each embodiment does not form the restriction to the embodiment of the present invention.
Embodiment mono-
The handling process of a kind of human body implantation type communication means based on inductance coupling high that this embodiment provides asShown in Fig. 1, comprise following treatment step:
Step S110, at inside of human body, implanted electronic equipment is set, this implanted electronic equipment comprises:Converter, signal modulator and signal projector.
ASK(AmplitudeShiftKeying, amplitude-shift keying) be the relatively simple modulation system of one.ASK is equivalent to the amplitude modulation in analog signal, and ASK modulates using frequency, phase place as constant, and amplitudeAs variable, information bit is to transmit by the amplitude of carrier wave. What ASK transmitted and received is widthThe carrier signal of degree Digital Modulation, can obtain the required clock of receiving circuit.
Described signal modulator and signal projector are realized by signal transmission circuit, and this embodiment providesA kind of signal transmission circuit part circuit structure figure as shown in Figure 2, signal transmission circuit comprise ASK adjustDevice processed, power amplifier and transmitting coil, by adjusting described in the frequency of described power amplifier adjustsThe transmitting power of transmitting coil.
Above-mentioned signal transmission circuit, uses the method that changes amplifier frequency response. So just avoid consumptionThe use of loose element, the efficiency of raising Energy Transfer. Because the structure of modulation circuit and frequency response are solidFixed, the energy in signal transmission circuit can be controlled by amplifier power supply.
The information conversion that converter in step S120, implanted electronic equipment sends needs is telecommunicationsNumber, above-mentioned information can be the status information of human body physiological parameter information or implanted electronic equipment etc.
Converter, signal modulator and signal projector are connected mutually, lead to taking human body as communication mediaLetter.
ASK modulator in signal transmission circuit carries out ASK modulation treatment to the described signal of telecommunication and obtains carrier waveSignal, described signal projector is transformed into electromagnetic wave by transmitting coil by described carrier signal, described in inciting somebody to actionElectromagnetic wave is to human body emitted outside.
Electromagnetic wave is from transmitting coil radiation, and not only the energy of electric wave can spread, and receiver can only be received itMiddle very small percentage, and in communication process, the energy of electric wave can be by ground, building or high-altitudeIonosphere absorb or reflection; Or in atmosphere, produce refraction or scattering, thereby cause declining of intensitySubtract.
Step S130, at human external, service terminal is set, this service terminal comprises: transducer, demodulationDevice and signal receiver.
Described demodulator and signal receiver are realized by signal receiving circuit, the one that this embodiment providesAs shown in Figure 3, described signal receiving circuit comprises whole the part circuit structure schematic diagram of signal receiving circuitCurrent circuit, filter circuit, receiving coil, series resonant circuit, demodulator and load, described rectified currentRoad, filter circuit, receiving coil, series resonant circuit and load are connected mutually.
Rectification circuit shown in Fig. 3 comprises double-diode rectifier, in rectification circuit, exist one much larger thanTuning capacitance C1C2Series capacitance C4, do not affect the resonant frequency of circuit. Between C4C5 electric capacityObtain galvanic current and press, be loaded on R1R2. Be subject to the impact of diode unilateral conduction, use twoThe electric current of diode of flowing through when diode rectifier is needle pattern. In coil in above-mentioned signal receiving circuitInduced current flow through the rectification circuit being in series with coil, time of each diode current flow is than in parallel connectionLong in structural circuit, all energy that receive are all loaded in load. Meanwhile, due to each half cycleInterim only have a diode current flow, and the switching loss of circuit further reduces.
In the signal receiving circuit of above-mentioned cascaded structure, load, rectifier and wave filter and resonance circuitBe in series, realize the ripple reducing in direct current supply voltage, reduce the bandwidth of DC filter, thus lineInduced voltage in circle can not be subject to the impact of rectifier, and the modulation degree of signal also can not change, and makesDemodulator circuit is simplified, and data transmission rate is improved.
The part circuit structure schematic diagram of a kind of demodulator that this embodiment provides as shown in Figure 4, described demodulationDevice comprises demodulator circuit and clock recovery circuitry, described demodulator circuit comprise amplitude divider, metal-oxide-semiconductor,Wave detector triode, passive belt bandpass filter and hysteresis comparator, described in described amplitude divider is arranged onThe input of demodulator circuit, is formed by two capacitances in series, described wave detector triode, the logical filter of passive beltRipple device and hysteresis comparator are connected mutually.
In the circuit shown in Fig. 4, add a divider at the input of demodulator, be used for limiting defeatedEnter the amplitude of voltage. This divider is formed by two capacitances in series. The value of two electric capacity is all smaller,To reduce the impact of demodulator on resonance circuit.
The metal-oxide-semiconductor of diode connection is as the amplifier of small-signal or the attenuator of large-signal. Electric current is flowed throughWhen metal-oxide-semiconductor, circuit plays two effects:
(1) can obtain higher pressure drop at electric current compared with hour amplifier;
(2), in the time that electric current is larger, the excessive voltage that attenuator produces is fallen by diode and is clamped down on, holding circuitOther parts.
A wave detector triode M for restoring signal envelope in data demodulatesRec, settling signal conditioningAnd impedance transformation. The signal that rectification obtains is by a passive belt bandpass filter. The bandwidth of this wave filterFrequency spectrum by transmission data determines. Wave filter output is again after a hysteresis comparator, and data are completeRecover.
Step S140, signal receiver receive the described electricity of described signal projector transmitting by electromagnetic inductionMagnetic wave, is converted to carrier signal by described electromagnetic wave, and described demodulator carries out demodulation to described carrier signalProcessing obtains the signal of telecommunication, and described transducer is information by described converting electrical signal.
Transmitting coil generation inductance coupling in receiving coil and signal transmission circuit in signal receiving circuitClose, form magnetic field, the electromagnetic wave of the above-mentioned transmitting coil transmitting of this magnetic field transmission. Receiving coil passes through electromagnetismInduction receives above-mentioned electromagnetic wave, and described electromagnetic wave is converted to carrier signal.
Demodulator in signal receiving circuit carries out demodulation process to described carrier signal and obtains the signal of telecommunication, instituteStating transducer is information by described converting electrical signal.
The efficient wireless transmission that realizes data is that guarantee device outside carries out accurately controlling to implanted equipmentCrucial. In order fully to eliminate the interference being produced by while transferring energy, the transmission of energy and data is used sameAn inductance coupling device arranges identical carrier wave simultaneously.
Embodiment bis-
A kind of human body implantation type communication system based on inductance coupling high that this embodiment provides, its concrete structureAs shown in Figure 5, comprising:
Implanted electronic equipment, for being arranged on inside of human body, comprising: converter, signal modulator andSignal projector, the information conversion that described converter sends needs is the signal of telecommunication, described signal modulatorThe described signal of telecommunication is carried out to modulation treatment and obtain carrier signal, described signal projector is by described carrier signalBe transformed into electromagnetic wave, by described electromagnetic wave to human body emitted outside.
Service terminal, for being arranged on human external, service terminal comprises: transducer, demodulator and letterNumber receiver, described signal receiver receives the described electricity of described signal projector transmitting by electromagnetic inductionMagnetic wave, is converted to carrier signal by described electromagnetic wave, and described demodulator carries out demodulation to described carrier signalProcessing obtains the signal of telecommunication, and described transducer is information by described converting electrical signal.
Further, signal modulator and the signal projector in described implanted electronic equipment passes through signalRadiating circuit is realized, and described signal transmission circuit comprises ASK modulation circuit, power amplifier and transmittingCoil, adjusts the transmitting power of described transmitting coil by adjusting the frequency of described power amplifier.
Described system also comprises:
Further, the demodulator in described service terminal and signal receiver are real by signal receiving circuitExisting, described signal receiving circuit comprises rectification circuit, filter circuit, receiving coil, series resonance electricityRoad, demodulator and load, described rectification circuit, filter circuit, receiving coil, series resonant circuit andLoad is connected mutually, and described rectification circuit comprises double-diode rectifier, in described signal receiving circuitTransmitting coil generation inductance coupling high in receiving coil and signal transmission circuit.
Described demodulator comprises demodulator circuit and clock recovery circuitry, and described demodulator circuit comprises amplitude dividing potential dropDevice, metal-oxide-semiconductor, wave detector triode, passive belt bandpass filter and hysteresis comparator, described amplitude dividing potential dropDevice is arranged on the input of described demodulator circuit, is formed by two capacitances in series, described wave detector three utmost pointsPipe, passive belt bandpass filter and hysteresis comparator are connected mutually.
Carry out the detailed process of the human body implantation type communication based on inductance coupling high by the system of the embodiment of the present inventionEmbodiment is similar with preceding method, repeats no more herein.
In sum, the embodiment of the present invention, by receiving coil and transmitting coil generation inductance coupling high, is being plantedEnter between formula electronic equipment and service terminal and carry out transmission information by electromagnetic wave, communication range is confined toThe communication of human body near-end can not cause covering area overlapping between different human bodies, has high security and heightBand efficiency has the advantages such as low in energy consumption and shadow-free effect simultaneously, thus provide a kind of safe,Efficiently, reliable human body communication system.
The embodiment of the present invention utilizes the resonance receiving circuit realization of cascaded structure fully to reduce rectifier and filteringThe impact of device on received signal.
Body electronic engineering field has become the important crossing domain of generation information technology and biotechnology,The research of the embodiment of the present invention is by the spy that organically blends and provide useful for electrical appliance industry and medical electronics industryBeg for.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, in accompanying drawingModule or flow process might not be implement the present invention necessary.
As seen through the above description of the embodiments, those skilled in the art can be well understood toThe mode that the present invention can add essential general hardware platform by software realizes. Based on such understanding,The part that technical scheme of the present invention contributes to prior art in essence in other words can be with software productForm embody, this computer software product can be stored in storage medium, asROM/RAM, magnetic disc, CD etc., comprise that some instructions are in order to make a computer equipment (passablePersonal computer, server, or the network equipment etc.) execution each embodiment of the present invention or enforcementMethod described in some part of example.
Each embodiment in this description all adopts the mode of going forward one by one to describe, identical between each embodimentSimilar part mutually referring to, what what each embodiment stressed was from other embodiment is differentPart. Especially, for device or system embodiment, because it is substantially similar in appearance to embodiment of the method,So describe fairly simplely, relevant part is referring to the part explanation of embodiment of the method. Above retouchingThe Apparatus and system embodiment stating is only schematically, the wherein said unit as separating component explanationCan or can not be also physically to separate, the parts that show as unit can be or also canNot to be physical location, can be positioned at a place, or also can be distributed to multiple NEsOn. Can select according to the actual needs some or all of module wherein to realize the present embodiment schemeObject. Those of ordinary skill in the art, in the situation that not paying creative work, are appreciated that alsoImplement.
The above be only preferably detailed description of the invention of the present invention, but protection scope of the present invention is notBe confined to this, any be familiar with those skilled in the art the present invention disclose technical scope in, canThe variation of expecting easily or replacement, within all should being encompassed in protection scope of the present invention. Therefore, the present inventionProtection domain should be as the criterion with the protection domain of claim.
Claims (6)
1. the human body implantation type communication means based on inductance coupling high, is characterized in that, comprising:
At inside of human body, implanted electronic equipment is set, this implanted electronic equipment comprises: converter, signal modulator and signal projector, the information conversion that described converter sends needs is the signal of telecommunication, described signal modulator carries out modulation treatment to the described signal of telecommunication and obtains carrier signal, described carrier signal is transformed into electromagnetic wave by described signal projector, by described electromagnetic wave to human body emitted outside;
At human external, service terminal is set, this service terminal comprises: transducer, demodulator and signal receiver, described signal receiver receives the described electromagnetic wave of described signal projector transmitting by electromagnetic induction, described electromagnetic wave is converted to carrier signal, described demodulator carries out demodulation process to described carrier signal and obtains the signal of telecommunication, and described transducer is information by described converting electrical signal; Described demodulator comprises demodulator circuit and clock recovery circuitry, described demodulator circuit comprises amplitude divider, metal-oxide-semiconductor, wave detector triode, passive belt bandpass filter and hysteresis comparator, described amplitude divider is arranged on the input of described demodulator circuit, formed by two capacitances in series, described wave detector triode, passive belt bandpass filter and hysteresis comparator are connected mutually.
2. the human body implantation type communication means based on inductance coupling high according to claim 1, is characterized in that, described method also comprises:
Described signal modulator and signal projector are realized by signal transmission circuit, described signal transmission circuit comprises ASK modulation circuit, power amplifier and transmitting coil, adjusts the transmitting power of described transmitting coil by adjusting the frequency of described power amplifier.
3. the human body implantation type communication means based on inductance coupling high according to claim 1, it is characterized in that, described demodulator and signal receiver are realized by signal receiving circuit, described signal receiving circuit comprises rectification circuit, filter circuit, receiving coil, series resonant circuit, demodulator and load, described rectification circuit, filter circuit, receiving coil, series resonant circuit and load are connected mutually, and described rectification circuit comprises double-diode rectifier.
4. the human body implantation type communication system based on inductance coupling high, is characterized in that, comprising:
Implanted electronic equipment, be used for being arranged on inside of human body, comprise: converter, signal modulator and signal projector, the information conversion that described converter sends needs is the signal of telecommunication, described signal modulator carries out modulation treatment to the described signal of telecommunication and obtains carrier signal, described carrier signal is transformed into electromagnetic wave by described signal projector, by described electromagnetic wave to human body emitted outside;
Service terminal, be used for being arranged on human external, service terminal comprises: transducer, demodulator and signal receiver, described signal receiver receives the described electromagnetic wave of described signal projector transmitting by electromagnetic induction, described electromagnetic wave is converted to carrier signal, described demodulator carries out demodulation process to described carrier signal and obtains the signal of telecommunication, and described transducer is information by described converting electrical signal; Described demodulator comprises demodulator circuit and clock recovery circuitry, described demodulator circuit comprises amplitude divider, metal-oxide-semiconductor, wave detector triode, passive belt bandpass filter and hysteresis comparator, described amplitude divider is arranged on the input of described demodulator circuit, formed by two capacitances in series, described wave detector triode, passive belt bandpass filter and hysteresis comparator are connected mutually.
5. the human body implantation type communication system based on inductance coupling high according to claim 4, it is characterized in that, described signal modulator and signal projector are realized by signal transmission circuit, described signal transmission circuit comprises ASK modulation circuit, power amplifier and transmitting coil, adjusts the transmitting power of described transmitting coil by adjusting the frequency of described power amplifier.
6. the human body implantation type communication system based on inductance coupling high according to claim 4, it is characterized in that, described demodulator and signal receiver are realized by signal receiving circuit, described signal receiving circuit comprises rectification circuit, filter circuit, receiving coil, series resonant circuit, demodulator and load, described rectification circuit, filter circuit, receiving coil, series resonant circuit and load are connected mutually, described rectification circuit comprises double-diode rectifier, transmitting coil generation inductance coupling high in receiving coil and signal transmission circuit in described signal receiving circuit.
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| CN107408842B (en) * | 2015-02-04 | 2021-06-29 | 艾尔弗雷德·伊·曼科学研究基金会 | Inductive link coil detuning compensation and control |
| CN105141327B (en) * | 2015-07-27 | 2017-11-24 | 北京理工大学 | Digital near field communication transmitter and implantation medical equipment |
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| CN1745857A (en) * | 2005-10-28 | 2006-03-15 | 清华大学 | Implant nervous electric pulse stimulus system |
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