CN104393889B - Transceiver, communication system and method for human body communication - Google Patents
Transceiver, communication system and method for human body communication Download PDFInfo
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- CN104393889B CN104393889B CN201410683212.4A CN201410683212A CN104393889B CN 104393889 B CN104393889 B CN 104393889B CN 201410683212 A CN201410683212 A CN 201410683212A CN 104393889 B CN104393889 B CN 104393889B
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Abstract
The invention relates to a transceiver structure, communication system and method for human body communication. The transceiver structure for the human body communication comprises a micro-processor used for receiving and transmitting data frames, verifying data and controlling an isolating switch, a base band processor for coding and decoding data, the isolating switch used for controlling the open and close of a signal channel, a filter for shaping sending signals and filtering noise from received signals, an electrode plate used for sending coupling signals and receiving signals sent from a human body signal channel, an amplifier for amplifying the received signals, a detector used for demodulating the received signals, and a comparator used for comparing the demodulated signals and restoring the demodulated signals into digital signals. The communication system and communication method for the human body communication include that using a first transceiver structure and a second transceiver structure to simultaneously send signals to each other and receive signals from each other. The transceiver structure, communication system and method for the human body communication use signals with different frequencies to simultaneously receive and transmit data so as to avoid the interference between signals. The transceiver structure, communication system and method for the human body communication can play roles of detecting errors and re-transmitting to improve the data transmission precision.
Description
Technical field
The present invention relates to human body communication technology field, specifically a kind of communication system and method for human body communication.
Background technology
Human body communication technology is a kind of transmission medium by the use of human body as communication, in the skill communicated by human body near-end
Art, which can be carried out data transmission by way of Capacitance Coupled or current coupling.Compared with traditional wireless communication technology, people
There is body communication technology signal to radiate the advantages such as little, harmless, low-power consumption, two-forty, high security, be to access Internet of Things
" last rice " preferable Wearable communication technology, application scenarios are quite varied.
In human body communication technology, human body communication transceiver is the key core of the technology.With the development of information technology,
Need the quantity of information interacted using human body communication more and more, therefore, when shortening the information exchange between two transceivers
Between, the accuracy of data transfer is improved, is the designer trends of transceiver.In existing technology, for the transceiver of human body communication
Mainly there are following several structures：
1st, human body communication transceiver simplex structure.One side of the structure is fixed as transmitting terminal, and the opposing party is then fixed as receiving terminal.
The defect of the structure is that information can only be transmitted in one direction, therefore can not realize the information between two human body communication transceivers
Interaction, range of application are restricted.
2nd, human body communication transceiver half-duplex structure.The structure not only can send data but also can be with receiving data, but can not
Carry out sending and receiving for data simultaneously.The defect of the structure is that data can not be while send and receive, causing ought two human body
When communication transceiver carries out information exchange, need longer time just complete, reduce the efficiency of information exchange, be unfavorable for human body
The development of communication.
3rd, human body communication transceiver full duplex structure.The structure can realize sending and receiving for data simultaneously.But mesh
The front human body communication transceiver configuration with regard to two-way communication is fewer, and the structure of other wireless two-way communication transceivers compares
It is more complicated.
Therefore, develop a kind of simple structure, data is activation can be realized simultaneously and receive capabilities for human body communication
Transceiver is very necessary.
The content of the invention
The technical problem to be solved be to provide a kind of simple structure, can be while realizing data is activation and reception
The communication system for human body communication of function.
The present invention provides a kind of transceiver configuration for human body communication, it is characterised in that：At microprocessor, base band
Reason device, disconnecting switch, wave filter, battery lead plate, amplifier, cymoscope, comparator；
The microprocessor is connected with the baseband processor, for sending and receiving Frame, carry out data check, control
Make the disconnecting switch；The baseband processor is connected with the microprocessor, the disconnecting switch and the comparator respectively,
Coding and decoding for data, sends and receiving data bag；The disconnecting switch respectively with the baseband processor, the filter
Ripple device, amplifier connection, for conducting and the closing of control signal passage；The wave filter respectively with the disconnecting switch
Connecting with the battery lead plate, Shape correction being carried out for the signal to sending, the signal to receiving carries out filtering noise processed；
The battery lead plate is connected with the wave filter, for signal coupling is sent, while receiving the signal that human body channel sends；
The amplifier is connected with the disconnecting switch and the cymoscope respectively, is put for the signal to receiving
Greatly, the identification in order to the cymoscope to signal；The cymoscope is connected with the amplifier and the comparator respectively, is used
It is demodulated in the signal to receiving；The comparator is connected with the cymoscope and the baseband processor respectively, is used for
Signal after demodulation is made decisions, signal is reverted to into digital signal.
Further, the disconnecting switch includes the first disconnecting switch and the second disconnecting switch, and described first keeps apart
Close and second disconnecting switch has the control port by microprocessor control；The wave filter includes the first wave filter
With the second wave filter, and first wave filter is different with the mid frequency of second wave filter；
The microprocessor is for baseband processor transmission Frame；The baseband processor be used for receive from
Data according to data form addition start frame and verification frame, and are encoded, are then adopted by the Frame of the microprocessor
OOK modulation systems simultaneously select the square wave of the mid frequency with first wave filter or the center with second wave filter
The square wave of frequency is used as the carrier signal for sending, and selection result is fed back to the microprocessor；
Second disconnecting switch is made at the base band for the order according to the microprocessor, Continuity signal passage
The carrier signal that reason device sends is transmitted to the wave filter by second disconnecting switch；
Wherein, when the carrier signal for selecting has the mid frequency of first wave filter, the microprocessor order
The control port of second disconnecting switch is low level, and second disconnecting switch turns on the baseband processor and described the
Signalling channel between one wave filter, the signalling channel closed between the baseband processor and second wave filter, makes institute
The carrier signal transmission of baseband processor transmission is stated to first wave filter；When the carrier signal for selecting has second filter
During the mid frequency of ripple device, the control port of the second disconnecting switch described in the microprocessor order be high level, described second
Disconnecting switch turns on the signalling channel between the baseband processor and second wave filter, close the baseband processor with
Signalling channel between second wave filter, makes the carrier signal transmission that the baseband processor sends to the described second filtering
Device；
The carrier signal that the wave filter is received for Shape correction, the carrier signal is converted to and is suitable for human body
The waveshape signal of transmission, and the waveshape signal is transmitted to the battery lead plate；The battery lead plate is for will receive
The waveshape signal coupling sends.
Further, the battery lead plate is additionally operable to the check results for receiving to send from human body channel, when check results table
Be shown as transmission information it is correct when, the microprocessor continues to send new Frame, and when check results, to be expressed as transmission information wrong
Mistake, the microprocessor resends Frame.
Further, the disconnecting switch includes the first disconnecting switch and the second disconnecting switch, and described first keeps apart
Close and second disconnecting switch has the control port by microprocessor control；The wave filter includes the first wave filter
With the second wave filter, and first wave filter is different with the mid frequency of second wave filter；
The battery lead plate is used to receive the signal sent from human body channel；The wave filter is for the signal to receiving
Carry out filtering noise processed, and by the signal transmission after process to first disconnecting switch；First disconnecting switch is used for
According to the order of the microprocessor, Continuity signal passage, the signal is made to transmit to described through first disconnecting switch
Amplifier；
Wherein, when the signal has the mid frequency of first wave filter, described in the microprocessor order
The control port of one disconnecting switch is high level, first disconnecting switch turn on first wave filter and the amplifier it
Between signalling channel, the signalling channel closed between second wave filter and the amplifier makes the signal by described
Transmit after first wave filter to the amplifier；It is when the signal has the mid frequency of second wave filter, described micro-
The control port of the first disconnecting switch described in processor command is low level, and the first disconnecting switch conducting described second is filtered
Signalling channel between device and the amplifier, the signalling channel closed between first wave filter and the amplifier, makes
The signal is transmitted to the amplifier after second wave filter；
The amplifier is easy to identification of the cymoscope to the signal, and will be amplified for the signal is amplified
The signal transmission afterwards is to the cymoscope；The cymoscope is demodulated for the signal to receiving, and will solution
Signal transmission after tune is to the comparator；The comparator is made decisions for the signal after the demodulation to receiving, by which
Digital signal is reverted to, and by the digital data transmission to the baseband processor；The baseband processor is for receiving
To the digital signal carry out decoding and obtain Frame, and by the data frame transfer to the microprocessor；Micro- place
Reason device is used to receive the Frame.
Further, the microprocessor is additionally operable to after the Frame is received, and carries out verification inspection to the Frame
Mistake, and check results are sent；Wherein, when check results are that data are correct, information correct result is sent, when verification knot
When fruit is error in data, information errors result is sent.
The present invention also provides a kind of communication system for human body communication, including first transceiver structure and second transceiver
Structure, the first transceiver structure and the second transceiver structure are above-mentioned transceiver configuration, the first transceiver knot
Structure is for the signal received while the second transceiver structure sending signal from second transceiver structure transmission；
The second transceiver structure for while the first transceiver structure sending signal receive from described first transmitting-receiving
The signal that device structure sends.
Further, the first transceiver structure and the second transceiver structure are included at microprocessor, base band
Reason device, disconnecting switch, wave filter, battery lead plate, amplifier, cymoscope, comparator；Wherein, the disconnecting switch include first every
Pass and the second disconnecting switch are left, and first disconnecting switch and second disconnecting switch have by the microprocessor control
The control port of system；The wave filter includes the first wave filter and the second wave filter, and first wave filter and described second
The mid frequency of wave filter is different；
The first transceiver sends Frame to the baseband processor by the microprocessor；The Base-Band Processing
Device is encoded to the Frame for receiving, and selects the square wave of the mid frequency with first wave filter as transmission
The first signal, while selection result is fed back to the microprocessor；Second disconnecting switch described in the microprocessor order
Control port be low level, turn on the signalling channel between second disconnecting switch and first wave filter, will be described
First signal transmission is to first wave filter；First signal that the first wave filter Shape correction is received, by which
First signal for being suitable for human body channel transmission is converted to, and by first signal transmission to the battery lead plate；It is described
Battery lead plate sends the signal coupling for receiving to the second transceiver structure；
Meanwhile, the second transceiver structure sends secondary signal, the secondary signal to the first transceiver structure
Mid frequency with second wave filter, the secondary signal are received by the battery lead plate of the first transceiver structure；Institute
Stating the secondary signal of second wave filter to receiving carries out filtering noise processed, transmits it to described first and keeps apart
Close；The control port of the first disconnecting switch described in the microprocessor order is low level, turn on first disconnecting switch with
Signalling channel between the amplifier, the secondary signal is transmitted to the amplifier；The amplifier is by described second
Signal is transmitted to the cymoscope after amplifying；The cymoscope is transmitted to institute after being demodulated to the secondary signal for receiving
State comparator；The comparator is made decisions to the secondary signal after the demodulation that receives, is restored it as digital signal,
And by the digital data transmission to the baseband processor；The baseband processor is carried out to the digital signal for receiving
Decoding is transmitted to the microprocessor after obtaining Frame.
Further, during the signal that the first transceiver structure reception is sent from the second transceiver structure, institute
While stating microprocessor and receive the Frame that decoding is obtained, data check error detection is carried out to Frame, and by with institute
The signal for stating the mid frequency of the first wave filter sends check results to the second transceiver structure；The check results are in institute
State first transceiver structure and send out to the second transceiver structure and be transmitted after signal again；
Meanwhile, the first transceiver structure is received receives and dispatches to described first from what the second transceiver structure sent
Device structure sends past signal and carries out the check results of data check.Wherein, when check results are error in data, send letter
Breath error result, when check results are that data are correct, sends information correct result.
It is understood that when the frequency of sending signal and check results in first transceiver structure is the first wave filter
During mid frequency, the frequency of first transceiver structure reception signal and check results is the mid frequency of the second wave filter, now,
The frequency of second transceiver structure sending signal and check results is the mid frequency of the second wave filter, second transceiver structure
The frequency of reception signal and check results is the mid frequency of the first wave filter.When sending signal and school in first transceiver structure
When the frequency for testing result is the mid frequency of the second wave filter, first transceiver structure receives signal and the frequency of check results is
The mid frequency of the first wave filter, now, the frequency of second transceiver structure sending signal and check results is the first wave filter
Mid frequency, second transceiver structure receives the mid frequency that the frequency of signal and check results is the second wave filter.
I.e.：It is different from the frequency for receiving signal for the first wave filter, its sending signal, send check results and receive school
The frequency for testing result is also different, similar, and the sending signal of the second wave filter is different from the frequency for receiving signal, sends verification knot
Fruit is also different from the frequency for receiving check results.In addition, for first wave filter and the of simultaneously sending signal or check results
For two wave filter, the frequency of the first wave filter sending signal is also different from the frequency of the second wave filter sending signal, the first filter
The frequency that ripple device sends check results is also different from the frequency of the second wave filter transmission check results, when the first wave filter and second
Wave filter receives signal or during check results, similar, for the first wave filter for receiving signal or check results and the simultaneously
For two wave filter, the frequency that the first wave filter receives signal is also different from the frequency of the second wave filter reception signal, the first filter
The frequency that ripple device receives check results is also different from the frequency of the second wave filter reception check results.
It is different just because of the signal frequency for sending or receive, just can be prevented effectively from signal and send simultaneously and/or during reception,
Interfering between signal, realizes sending and/or receiving the validity and reliability of signal simultaneously.
The present invention also provides a kind of communication means for above-mentioned communication system, including：
Send Frame and Frame is encoded, obtain sending signal；The sending signal is converted to into suitable people
The waveshape signal of body transmission；Waveshape signal coupling is sent；
Meanwhile, receive the waveshape signal sent from human body channel；The waveshape signal is processed, is decoded it and is obtained data
Frame；The information that the Frame is stored to obtain receiving.
Further, methods described also includes：After decoding obtains Frame, Frame is verified, and believed in waveform
Number coupling send after, the result verified to Frame is sent, when check results be error in data when, send
Information errors result, when check results are that data are correct, sends information correct result；
Meanwhile, receive from human body channel send check results, when check results be expressed as transmission information it is correct when,
Continue to send new Frame；When check results are expressed as sending information errors, Frame is resend.
Compared with prior art, the present invention can realize the transmission and acceptance of data simultaneously, and can be to the number of reception
According to being verified, the function that error detection is retransmitted is realized.The present invention can not only shorten required for the information interaction of transceiver configuration
Time, and improve the accuracy of data transfer, exchange information and more facilitate operable.
Description of the drawings
Fig. 1 is the structural representation of the transceiver that embodiment is used for human body communication.
Fig. 2 is the application schematic diagram of the communication system that embodiment is used for human body communication.
Specific embodiment
In the present invention, term " first ", " second " etc. are mainly used for distinguishing different devices, element or composition portion
Point, it is not intended to show or imply the relative importance and quantity of indication showing device, element or ingredient.
Additionally, term " on ", D score, "left", "right", "front", "rear", " top ", " bottom ", " interior ", " outward ", " in " etc. indicate
Orientation or position relationship be based on orientation shown in the drawings or position relationship, or also be likely used in some cases represent
Certain annexation.These terms are not intended to limit indicated primarily to preferably describe the present invention and embodiment
Device, element or ingredient must have particular orientation, or be constructed with particular orientation and operated.
Additionally, term " setting ", " being provided with ", should be interpreted broadly " connection ", " being connected ".For example, it may be mechanically connected,
Or electrical connection；Can be joined directly together, or be indirectly connected to by intermediary, or be two devices, element or groups
Into connection internal between part.For those of ordinary skills, above-mentioned term can be understood as the case may be
Concrete meaning in this utility model.
The technical solution of the utility model is further described with reference to embodiment and accompanying drawing.
Below by specific embodiment, the present invention is described in detail, it should be appreciated that these specific embodiment parties
Formula is only used for enumerating the present invention, not constitutes any type of any restriction to the real protection scope of the present invention.
Embodiment
It is illustrated in figure 1 the transceiver configuration for human body communication of the present invention, including microprocessor 1, baseband processor
2nd, disconnecting switch 3, wave filter 4, battery lead plate 5, amplifier, cymoscope 7, comparator 8.
Microprocessor 1 be microcomputer, for example can be ARM microprocessor, be connected with baseband processor 2, for
Baseband processor 2 sends Frame.
Baseband processor 2 can for example be FPGA (Field-Programmable Gate Araay field programmable gates row
Battle array) chip, it is connected with microprocessor 1, disconnecting switch 3, comparator 8 respectively, for receiving the Frame from microprocessor 1,
According to data form addition start frame and verification frame, and data are encoded, then selected with filter using OOK modulation systems
The square wave of the mid frequency of ripple device 4 is used as the carrier signal for sending, and selection result is fed back to microprocessor 1.
Disconnecting switch 3 is the numerical selector similar to alternative, for conducting and the closing of signalling channel, including first
Disconnecting switch 31 and the second disconnecting switch 32, and the first disconnecting switch 31 and the second disconnecting switch 32 have and controlled by microprocessor 1
The control port of system, wherein the second disconnecting switch 32 is connected with baseband processor 2 and wave filter 4 respectively；Wave filter 4 respectively with every
Leaving pass 3 and battery lead plate 5 connecting, Shape correction is carried out for the signal to sending, the signal to receiving carries out filtering noise
Process, which includes the first wave filter 41 and the second wave filter 42, and the mid frequency of the first wave filter 41 and the second wave filter 42
It is different.
Baseband processor 2 can select the square wave of the mid frequency with the first wave filter 41 or have the second wave filter 42
Mid frequency square wave as send carrier signal.When the carrier signal for selecting has the mid frequency of the first wave filter 41
When, microprocessor 1 order the second disconnecting switch 32 control port be low level, the second disconnecting switch 32 conducting baseband processor
2 and first signalling channel between wave filter 41, the signalling channel closed between baseband processor 2 and the second wave filter 42 makes
The carrier signal transmission that baseband processor 2 sends is to the first wave filter 41；When the carrier signal for selecting has the second wave filter 42
Mid frequency when, it is high level that microprocessor 1 orders the control port of the second disconnecting switch 42, and the second disconnecting switch 42 turns on
Signalling channel between baseband processor 2 and the second wave filter 42, the letter closed between baseband processor 2 and the second wave filter 42
Number passage, makes the carrier signal transmission that baseband processor 2 sends to the second wave filter 42.
The carrier signal that wave filter 4 is received for Shape correction, carrier signal is converted to and is suitable for human body channel biography
Defeated waveshape signal, and waveshape signal is transmitted to battery lead plate 5.
Battery lead plate 5 is connected with wave filter 4, for the waveshape signal for receiving coupling is sent.In addition, battery lead plate 5
It is additionally operable to receive the signal sent from human body channel, and by the signal transmission for receiving to wave filter 4.
Wave filter 4 is additionally operable to the signal to receiving and carries out filtering noise processed, and by the signal transmission after process to
One disconnecting switch 31.
Wherein, when the signal for receiving has the mid frequency of the first wave filter 41, the order of microprocessor 1 first is kept apart
The control port for closing 31 is high level, and the first disconnecting switch 31 turns on the signalling channel between the first wave filter 41 and amplifier 6,
The signalling channel closed between the second wave filter 42 and amplifier 6, makes signal by transmitting to amplifier after the first wave filter 41
6；When the signal for receiving has the mid frequency of the second wave filter 42, microprocessor 1 orders the control of the first disconnecting switch 31
Port is low level, and the signalling channel between the second wave filter 42 of conducting of the first disconnecting switch 31 and amplifier 6, closing first are filtered
Signalling channel between ripple device 41 and amplifier 6, makes signal by transmitting to amplifier 6 after the second wave filter 42.
It should be noted that the waveshape signal that battery lead plate coupling sends should from the signal that human body channel is received with battery lead plate
With different mid frequencyes so that when transceiver configuration sends and receives data at the same time, will not interfere.For example, when
When the waveshape signal that battery lead plate coupling sends has the mid frequency of the first wave filter, then the letter that battery lead plate is received from human body channel
Number have the second wave filter mid frequency.
Amplifier 6 is connected with the first disconnecting switch 31 and cymoscope 7 respectively, for signal is amplified, is easy to 7 pairs, cymoscope
The identification of signal, and by the signal transmission after amplification to cymoscope 7.Cymoscope 7 is connected with amplifier 6 and comparator 8 respectively, is used
It is demodulated in the signal to receiving, and by the signal transmission after demodulation to comparator 8.Comparator 8 respectively with cymoscope 6 and
Baseband processor 2 connects, and makes decisions for the signal after the demodulation to receiving, and restores it as digital signal, and by number
Word signal transmission is to baseband processor 2.
Baseband processor 2 is additionally operable to the digital signal to receiving and carries out decoding obtain Frame, and by data frame transfer
To microprocessor 1.Microprocessor 1 is additionally operable to receiving data frames, and verification error detection is carried out to received data frame, and will verification
As a result send；Wherein, when check results are that data are correct, information correct result is sent, when check results are that data are wrong
Mistake, send information errors result.
In addition, battery lead plate 5 is additionally operable to receive the check results sent from human body channel, when check results are expressed as sending
When information is correct, microprocessor 1 continues to send new Frame, when check results are expressed as sending information errors, microprocessor
Device 1 resends Frame.
The present embodiment also provides a kind of communication system for human body communication, including first transceiver structure 10 and second is received
Device structure 20 is sent out, first transceiver structure 10 and second transceiver structure 20 are above-mentioned transceiver configuration.It is illustrated in figure 2 this
The concrete application of system is illustrated.First transceiver structure 10, the electricity in the first transceiver structure 10 are set with first user
Pole is body-coupled with the first user, likewise, second user arranges second transceiver structure 20, the second transceiver structure
Electrode in 20 is body-coupled with the second user, and first user contacts composition human body channel by body with second user
30。
First transceiver structure 10 for while second transceiver 20 sending signal of structure receive from second transmitting-receiving
The signal that device structure 20 sends；Second transceiver structure 20 is for next to reception while first transceiver 10 sending signal of structure
From the signal that first transceiver structure 10 sends.
Shown in seeing figures.1.and.2, the first transceiver structure 10 and the second transceiver structure 20 include micro- place
Reason device 1, baseband processor 2, disconnecting switch 3, wave filter 4, battery lead plate 5, amplifier 6, cymoscope 7, comparator 8；Wherein, it is described
Disconnecting switch 3 includes the first disconnecting switch 31 and the second disconnecting switch 32, and first disconnecting switch 31 and described second every
Leave 32 are closed with the control port by the control of the microprocessor 1；The wave filter 4 includes the first wave filter 41 and the second filter
Ripple device 42, and first wave filter 41 is different with the mid frequency of second wave filter 42.
The first transceiver 10 sends Frame to the baseband processor 2 by the microprocessor 1；The base band
2 pairs of Frames for receiving of processor are encoded, and select the square wave of the mid frequency with first wave filter 41 to make
For send the first signal, while selection result is fed back to the microprocessor 1；The microprocessor 1 orders described second
The control port of disconnecting switch 32 is low level, turns on the letter between second disconnecting switch 32 and first wave filter 41
Number passage, by first signal transmission to first wave filter 41；What 41 Shape correction of the first wave filter was received
First signal, is converted into first signal for being suitable for human body channel transmission, and by first signal transmission
To the battery lead plate 5；The battery lead plate 5 sends the signal coupling for receiving to the second transceiver structure 20；
Meanwhile, the second transceiver structure 20 sends secondary signal to the first transceiver structure 10, and described second
Signal has the mid frequency of second wave filter 42, battery lead plate of the secondary signal by the first transceiver structure 10
5 receive；The secondary signal that 42 pairs, second wave filter is received carries out filtering noise processed, transmits it to described
One disconnecting switch 31；It is low level that the microprocessor 1 orders the control port of first disconnecting switch 31, turns on described the
Signalling channel between one disconnecting switch 31 and the amplifier 6, the secondary signal is transmitted to the amplifier 6；It is described
Amplifier 6 will be transmitted to the cymoscope 7 after secondary signal amplification；Second letter that 7 pairs, the cymoscope is received
Transmit to the comparator 8 after number being demodulated；The secondary signal after 8 pairs of demodulation for receiving of the comparator is sentenced
Certainly, restore it for digital signal, and by the digital data transmission to the baseband processor 2；The baseband processor 2 pairs
The digital signal for receiving carries out transmitting to the microprocessor 1 after decoding obtains Frame.
Further, the first transceiver structure 1 receive from the second transceiver structure 20 send signal when,
While the microprocessor 1 receives the Frame that decoding is obtained, data check error detection is carried out to Frame, and by having
The signal of the mid frequency of first wave filter 41 sends check results to the second transceiver structure 20；The verification knot
Fruit is transmitted after the first transceiver structure 10 sends out signal to the second transceiver structure 20 again；
Meanwhile, the first transceiver structure 10 receive from the second transceiver structure 20 send to described first
Transceiver configuration 10 sends past signal and carries out the check results of data check.Wherein, when check results are error in data,
Information errors result is sent, when check results are that data are correct, information correct result is sent.
It should be noted that in the present invention, when the frequency of sending signal and check results in first transceiver structure is
During the mid frequency of the first wave filter, then it is the second wave filter that first transceiver structure receives signal and the frequency of check results
Mid frequency, now, the frequency of second transceiver structure sending signal and check results is the mid frequency of the second wave filter, the
The frequency of two transceiver configurations reception signal and check results is the mid frequency of the first wave filter.When first transceiver structure
When the frequency of middle sending signal and check results is the mid frequency of the second wave filter, then first transceiver structure receive signal and
The frequency of check results is the mid frequency of the first wave filter, now, second transceiver structure sending signal and check results
Frequency is the mid frequency of the first wave filter, and it is the second wave filter that second transceiver structure receives signal and the frequency of check results
Mid frequency.
I.e.：It is different from the frequency for receiving signal for first transceiver structure, its sending signal, send check results and connect
The frequency for receiving check results is also different, similar, and the sending signal of second transceiver structure is different from the frequency for receiving signal, sends out
Send check results also different from the frequency for receiving check results.In addition, for while the first receipts of sending signal or check results
For sending out device structure and second transceiver structure, the frequency of first transceiver structure and second transceiver structure sending signal is not
Together, first transceiver structure and second transceiver structure send check results frequency it is also different, when first transceiver structure and
It is when second transceiver structure receives signal or check results, similar, for the first receipts for receiving signal or check results simultaneously
For sending out device structure and second transceiver structure, the frequency that first transceiver structure receives signal with second transceiver structure is not
Together, the frequency that first transceiver structure receives check results from second transceiver result is also different.
It is different just because of the signal frequency for sending or receive, just can be prevented effectively from signal and send simultaneously and/or during reception,
Interfering between signal, realizes sending and/or receiving the validity and reliability of signal simultaneously.
The present embodiment also provides a kind of communication means for above-mentioned communication system, including：
Send Frame and Frame is encoded, obtain sending signal；The sending signal is converted to into suitable people
The waveshape signal of body transmission；Waveshape signal coupling is sent；
Meanwhile, receive the waveshape signal sent from human body channel；The waveshape signal is processed, is decoded it and is obtained data
Frame；The information that the Frame is stored to obtain receiving.
Further, methods described also includes：After decoding obtains Frame, Frame is verified, and believed in waveform
Number coupling send after, the result verified to Frame is sent, when check results be error in data when, send
Information errors result, when check results are that data are correct, sends information correct result；
Meanwhile, receive from human body channel send check results, when check results be expressed as transmission information it is correct when,
Continue to send new Frame；When check results are expressed as sending information errors, Frame is resend.
The above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to the present invention
Embodiment restriction.For those of ordinary skill in the field, can also make on the basis of the above description
The change or variation of other multi-forms.There is no need to be exhaustive to all of embodiment.It is all the present invention
Any modification, equivalent and improvement made within spirit and principle etc., should be included in the protection of the claims in the present invention
Within the scope of.
Claims (6)
1. a kind of communication system for human body communication, it is characterised in that：The communication system includes first transceiver structure and
Two transceiver configurations, the first transceiver structure for while the second transceiver structure sending signal receive from
The signal that the second transceiver structure sends；The second transceiver structure is believed for sending to the first transceiver structure
Number while receive from the first transceiver structure send signal；
The first transceiver structure and the second transceiver structure include microprocessor, baseband processor, disconnecting switch,
Wave filter, battery lead plate, amplifier, cymoscope, comparator；Wherein, the disconnecting switch include the first disconnecting switch and second every
Pass is left, and first disconnecting switch and second disconnecting switch have the control port by microprocessor control；
The wave filter includes the first wave filter and the second wave filter, and the center frequency of first wave filter and second wave filter
Rate is different；
The microprocessor is connected with the baseband processor, for sending and receiving Frame, carry out data check, control institute
State disconnecting switch；The baseband processor is connected with the microprocessor, the disconnecting switch and the comparator respectively, is used for
The coding of data and decoding, send and receiving data bag；The disconnecting switch respectively with the baseband processor, the filtering
Device, amplifier connection, for conducting and the closing of control signal passage；The wave filter respectively with the disconnecting switch and
The battery lead plate connection, carries out Shape correction for the signal to sending, and the signal to receiving carries out filtering noise processed；Institute
State battery lead plate to be connected with the wave filter, for signal coupling is sent, while receiving the letter sent from human body channel
Number；
The amplifier is connected with the disconnecting switch and the cymoscope respectively, is amplified for the signal to receiving,
In order to identification of the cymoscope to signal；The cymoscope is connected with the amplifier and the comparator respectively, is used for
Signal to receiving is demodulated；The comparator is connected with the cymoscope and the baseband processor respectively, for right
Signal after demodulation makes decisions, and signal is reverted to digital signal；
The first transceiver structure sends Frame to the baseband processor by the microprocessor；The Base-Band Processing
Device is encoded to the Frame for receiving, and selects the square wave of the mid frequency with first wave filter as transmission
First signal, while selection result is fed back to the microprocessor；Second disconnecting switch described in the microprocessor order
Control port is low level, turns on the signalling channel between second disconnecting switch and first wave filter, by described the
One signal transmission is to first wave filter；First signal that the first wave filter Shape correction is received, by its turn
First signal for being suitable for human body channel transmission is changed to, and by first signal transmission to the battery lead plate；The electricity
Pole plate sends the signal coupling for receiving to the second transceiver structure；
Meanwhile, the second transceiver structure sends secondary signal to the first transceiver structure, and the secondary signal has
The mid frequency of second wave filter, the secondary signal are received by the battery lead plate of the first transceiver structure；Described
Two wave filter carry out filtering noise processed to the secondary signal for receiving, and transmit it to first disconnecting switch；Institute
The control port for stating the first disconnecting switch described in microprocessor order is low level, turns on first disconnecting switch and puts with described
Signalling channel between big device, the secondary signal is transmitted to the amplifier；The secondary signal is put by the amplifier
Transmit to the cymoscope after big；The cymoscope is transmitted to the comparison after being demodulated to the secondary signal for receiving
Device；The comparator is made decisions to the secondary signal after the demodulation that receives, is restored it as digital signal, and by institute
Digital data transmission is stated to the baseband processor；The baseband processor carries out decoding to the digital signal for receiving
Transmit to after Frame to the microprocessor.
2. communication system according to claim 1, it is characterised in that：The first transceiver structure is received from described the
During the signal that two transceiver configurations send, while the microprocessor receives the Frame that decoding is obtained, Frame is entered
Row data check error detection, and sent out to the second transceiver structure by the signal of the mid frequency with first wave filter
Send check results；The check results after the first transceiver structure sends out signal to the second transceiver structure again
It is transmitted；
Meanwhile, the first transceiver structure is received to be tied to the first transceiver from what the second transceiver structure sent
Structure sends past signal and carries out the check results of data check.
3. communication system according to claim 1, it is characterised in that：The battery lead plate is additionally operable to receive from human body channel
The check results of transmission, when check results be expressed as transmission information it is correct when, the microprocessor continues to send new Frame,
When check results are expressed as sending information errors, the microprocessor resends Frame.
4. communication system according to claim 1, it is characterised in that：The microprocessor is additionally operable to receiving the data
After frame, verification error detection is carried out to the Frame, and check results are sent；Wherein, when check results are that data are correct
When, information correct result is sent, when check results are error in data, information errors result is sent.
5. a kind of communication means of the communication system for as described in any one of Claims 1-4, including：
Send Frame and Frame is encoded, obtain sending signal；The sending signal is converted to into suitable human body letter
The waveshape signal of road transmission；Waveshape signal coupling is sent；
Meanwhile, receive the waveshape signal sent from human body channel；The waveshape signal is processed, is decoded it and is obtained Frame；
The information that the Frame is stored to obtain receiving.
6. communication means according to claim 5, it is characterised in that：Methods described also includes：After decoding obtains Frame,
Frame is verified, and after waveshape signal coupling sends, the check results of decoding the data obtained frame is sent out
Go, when check results are that data are correct, send information correct result, when check results are error in data, send information wrong
Miss result；
Meanwhile, receive from human body channel send check results, when check results be expressed as transmission information it is correct when, continue send out
Send new Frame；When check results are expressed as sending information errors, Frame is resend.
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| FR3047135B1 (en) * | 2016-01-26 | 2020-03-06 | Philippe Royer | MEDIA BROADCAST CONTROL DEVICE |
| EP3211607B1 (en) | 2016-02-29 | 2018-06-13 | Ams Ag | Communication device and method for communication |
| CN106295300B (en) * | 2016-08-15 | 2019-04-26 | 深圳先进技术研究院 | A kind of wearable intelligent equipment identity identifying method and device |
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