CN104883660B - A kind of near field contact communication means based on surface acoustic wave - Google Patents
A kind of near field contact communication means based on surface acoustic wave Download PDFInfo
- Publication number
- CN104883660B CN104883660B CN201510280419.1A CN201510280419A CN104883660B CN 104883660 B CN104883660 B CN 104883660B CN 201510280419 A CN201510280419 A CN 201510280419A CN 104883660 B CN104883660 B CN 104883660B
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- Prior art keywords
- surface acoustic
- terminal
- acoustic wave
- mobile terminal
- signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
Abstract
The invention discloses a kind of near field contact communication means based on surface acoustic wave, mobile terminal is set to contact to form surface acoustic wave transmission channel with fixed terminal first, one of terminal is controlled again to another terminal transmission surface acoustic wave signal, another terminal realizes the information exchange between mobile terminal and fixed terminal by transmission channel receiving surface acoustic signals.The present invention must could realize information exchange under conditions of both mobile terminal and fixed terminal are in direct contact, and improve the safety of communication.
Description
Technical field
The present invention relates to near-field communication field more particularly to a kind of near field contact communication means based on surface acoustic wave.
Background technology
Near-field communication is a kind of close range communication techniques to grow up on the basis of radio frequency identification and Internet technology,
And mobile payment is then that a kind of novel near field means of payment of payment behavior is wirelessly completed using mobile terminal, it is mobile
Mobile terminal can be mobile phone, PDA, mobile PC etc. used in payment.Mobile payment based on near-field communication refers to then user
It is paid using mobile terminal, mobile terminal is modeled as non-contact payment card and uses the short distance means of payment and support non-connect
The transaction system for touching payment interacts the related payment application of completion.
What China Communications Standards Association was printed and distributed on 09 27th, 2010《Communication standard gray technology is reported》In specify
Electronic payment of mobile terminal technology requirement based on the short distance wireless communication technology, as can be seen that mobile terminal from this report
With card-reading apparatus（Fixed terminal）Contactless communication is realized based on wireless network or bluetooth.But in actual use, this
There is larger security risks for the contactless communication mode of kind.Specific manifestation is as follows, and undesirable uses card-reading apparatus（Gu
Determine terminal）Close to mobile terminal user certain distance, so that it may obtain the information of mobile terminal, then can be obtained by cracking etc.
Know password, and transferred in the unwitting fund by mobile terminal of user, eventually leads to user's property loss.
Invention content
It is an object of the invention to solve the above-mentioned problems in the prior art, provide a kind of based on the close of surface acoustic wave
Field contact communication means, the present invention must could realize letter under conditions of both mobile terminal and fixed terminal are in direct contact
Breath interaction, improves the safety of communication.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of near field contact communication means based on surface acoustic wave, it is characterised in that：Make mobile terminal and fixation first
Terminal contacts to form surface acoustic wave transmission channel, then controls one of terminal to another terminal transmission surface acoustic wave signal,
Another terminal realizes the information exchange between mobile terminal and fixed terminal by transmission channel receiving surface acoustic signals.
The mobile terminal is by transmission channel to fixed terminal acoustic waves signal, fixed terminal receiving surface sound
Wave signal realizes that the information between mobile terminal and fixed terminal is transmitted.
For the mobile terminal by transmission channel to fixed terminal acoustic waves signal, fixed terminal receives surface
Surface acoustic wave signal is handled after acoustic signals, then by treated, surface acoustic wave signal is fed back by transmission channel again
To mobile terminal, the information exchange between mobile terminal and fixed terminal is realized.
The fixed terminal is by transmission channel to mobile terminal acoustic waves signal, mobile terminal receiving surface sound
Wave signal realizes that the information between mobile terminal and fixed terminal is transmitted.
For the fixed terminal by transmission channel to mobile terminal acoustic waves signal, mobile terminal receives surface
Surface acoustic wave signal is handled after acoustic signals, then by treated, surface acoustic wave signal is fed back by transmission channel again
To fixed terminal, the information exchange between mobile terminal and fixed terminal is realized.
The fixed terminal includes master controller, induction substrate and main transducer, the master controller by signal wire with
Main transducer connects, for driving main transducer to receive or acoustic waves signal；The mobile terminal include from controller,
Inductive head and the slave energy converter being fixed on inductive head, it is described to be connect from controller with from energy converter by signal wire, it uses
In driving from energy converter transmitting or receiving surface acoustic signals；When information exchange, inductive head is in contact to form table with induction substrate
Face acoustic transmission channel.
The quantity of the main transducer is one or more, and when being multiple, multiple main transducers are connected in parallel.
The main transducer is arranged in front, the back side or the side of induction substrate.
Advantage using the present invention is：
One, in the present invention, it is necessary under conditions of mobile terminal is in contact with fixed terminal, in mobile terminal and could consolidate
Determine to realize information exchange between terminal, compared with contactless communication mode in the prior art, this contact of the present invention
Communication mode is safer, especially mixes encryption function, more can effectively prevent illegally monitoring or information leakage.Also, it connects
The communication mode of touch is not readily susceptible to the influence of the external environments such as temperature, weather, temperature, the reliability higher of communication.
It two, both can be by mobile terminal or fixed terminal to fixed terminal or mobile terminal emitting surface sound in the present invention
Wave signal realizes that information is transmitted, also can be in mobile terminal and fixed terminal interactive acoustic waves signal realization between the two
Information exchange, these communication modes allow the invention to be used in all trades and professions, such as are brushed for Mobile-Payment Technology, bank
Card technique, bus card-reading technology and gate inhibition swipe the card, and technology is medium, and the scope of application is wider.
Three, in the present invention, when the quantity of main transducer is multiple, multiple main transducers are connected in parallel so that main control
Device can drive multiple main transducers and meanwhile transmitting or receiving surface acoustic signals, it is shortest to be conducive to Intelligent Establishment transmission range
Transmission channel, i.e., when multiple main transducers acoustic waves signal simultaneously, mobile terminal intelligent selection receives distance perspective and answers
The surface acoustic wave signal of nearest main transducer transmitting；And when multiple main transducers receiving surface acoustic signals simultaneously, Gu
Determine the surface acoustic wave signal received by the nearest main transducer of terminal intelligent chosen distance inductive head.In addition, logical due to transmitting
The distance in road is most short, also so that the intensity of surface acoustic wave signal is stronger, can not only greatly improve the speed of information exchange, moreover it is possible to
The enough sensitivity for improving communication.
Four, in the present invention, main transducer can be arranged on the front, the back side or side of induction substrate, and set-up mode is more
Kind style, disclosure satisfy that the demand of different industries.
Description of the drawings
Fig. 1 is mobile terminal and main structure diagram of the fixed terminal when carrying out information exchange in the present invention；
Fig. 2 is that the structural schematic diagram in induction substrate front side is arranged in main transducer in the present invention；
Fig. 3 is that the structural schematic diagram in induction substrate back is arranged in main transducer in the present invention；
Label in figure be：1, incude substrate, 2, main transducer, 3, mobile terminal, 4, inductive head, 5, from energy converter, 6,
Master controller, 7, from controller.
Specific implementation mode
Embodiment 1
A kind of near field contact communication means based on surface acoustic wave makes mobile terminal 3 contact shape with fixed terminal first
At surface acoustic wave transmission channel, then one of terminal is controlled to another terminal transmission surface acoustic wave signal, another terminal
By transmission channel receiving surface acoustic signals, the information exchange between mobile terminal 3 and fixed terminal is realized.
In the present embodiment, the fixed terminal includes master controller 6, induction substrate 1 and main transducer 2, the main control
Device 6 is connect by signal wire with main transducer 2, for driving main transducer 2 to receive or acoustic waves signal；The movement
Terminal 3 include from controller 7, inductive head 4 and the slave energy converter 5 being fixed on inductive head 4, it is described to pass through from controller 7
Signal wire is connect with from energy converter 5, for driving from the transmitting of energy converter 5 or receiving surface acoustic signals；When information exchange, induction
First 4 are in contact to form surface acoustic wave transmission channel with induction substrate 1.
Further, the quantity of the main transducer 2 is one or more, and when being multiple, multiple main transducers 2 are in parallel
Connection, and preferably multiple main transducers 2 are uniformly arranged on induction substrate 1, are allowed for each main transducer 2 in this way and are needed to bear
The signal blamed in relatively narrow region receives, the transmitting range for being conducive to the receiving sensitivity for improving signal and improving signal, i.e., quite
In enhancing signal strength.In addition, multiple main transducers 2 are uniformly arranged on the structure on induction substrate 1 so that 4 nothing of inductive head
By be placed in induction substrate 1 where, always have with 4 immediate main transducer 2 of inductive head, transmission range can be formed
Shortest surface acoustic wave transmission channel advantageously reduces the transmission loss of surface acoustic wave and reduces the transmission time of surface acoustic wave,
And then improve the response speed of near-field communication.
In the present embodiment, the main transducer 2 refers to the energy converter under the control of master controller 6, can both receive table
Face acoustic signals, can also acoustic waves signal.And from energy converter 5 refer to the energy converter under the control from controller 7,
Both can be with acoustic waves signal, it can also receiving surface acoustic signals.When the main transducer 2 on fixed terminal is transmitting table
When the acoustic signals of face, the slave energy converter 5 on mobile terminal 3 is receiving surface acoustic signals, conversely, the master on fixed terminal changes
When energy device 2 is receiving surface acoustic signals, the slave energy converter 5 on mobile terminal 3 is acoustic waves signal.In this way, the two
Cooperation can be realized as the information exchange between mobile terminal 3 and fixed terminal.
In the present embodiment, the main transducer 2 is arranged in front, the back side or the side of induction substrate 1.
In the present embodiment, the induction substrate 1 is rectangular, and multiple main transducers 2 are uniformly arranged on rectangular induction substrate 1 four
Front, the back side or the side in week.
In the present embodiment, the material for incuding substrate 1 and inductive head 4 can be that glass, ceramics, metal etc. being capable of transfer surfaces
The substance of sound wave.
In the present embodiment, it is both provided with corresponding processing circuit on induction substrate 1 and inductive head 4, is used for surface acoustic wave
The amplification and processing of conversion and electric signal between electric signal.
In the present embodiment, the mobile terminal 3, to fixed terminal acoustic waves signal, is fixed eventually by transmission channel
End receives surface acoustic wave signal, realizes that the information between mobile terminal 3 and fixed terminal is transmitted.The embodiment is suitable for bank
It swipes the card, the industry that access control etc. only need to be by mobile terminal 3 to fixed terminal unidirectional delivery information.By taking bank brushing card as an example,
Its specific implementation method mistake：Bank card is mobile terminal 3, and POS machine or ATM machine are fixed terminal, and induction is integrated on bank card
First 4, from energy converter 5, signal drive circuit, Signal coding circuit, from the components such as controller 7 and power supply.During swiping the card, silver
Slave controller 7 on row card sends out the data with unique identity information, again through letter after being encoded by coding circuit
Number driving circuit driving energy converter sends out surface acoustic wave signal；The surface acoustic wave signal is transferred to solid by way of contact transmission
Determine on the induction pedestal of terminal, electric signal is received and converted by the main transducer 2 on induction pedestal, which amplifies through signal
The main control that terminal is fixed after the processing such as circuit, signal acquisition circuit, signal decoding circuit receives and processes, to reach letter
Number contact transmit purpose.
Embodiment 2
A kind of near field contact communication means based on surface acoustic wave makes mobile terminal 3 contact shape with fixed terminal first
At surface acoustic wave transmission channel, then one of terminal is controlled to another terminal transmission surface acoustic wave signal, another terminal
By transmission channel receiving surface acoustic signals, the information exchange between mobile terminal 3 and fixed terminal is realized.
In the present embodiment, the mobile terminal 3, to fixed terminal acoustic waves signal, is fixed eventually by transmission channel
Termination is handled surface acoustic wave signal after receiving surface acoustic wave signal, and then by treated, surface acoustic wave signal passes through again
Transmission channel feeds back to mobile terminal 3, realizes the information exchange between mobile terminal 3 and fixed terminal.The embodiment is applicable in
The industry of mobile terminal 3 and fixed terminal progress information exchange is needed in bus card-reading, mobile-phone payment etc..By taking mobile-phone payment as an example,
Its specific implementation method mistake：Mobile phone is mobile terminal 3, and POS machine or ATM are fixed terminal, are integrated with based on surface sound on mobile phone
The communication module of wave communication includes inductive head 4 in communication module, from energy converter 5, signal drive circuit（Signal amplification electricity
Road）, Signal coding circuit（Signal decoding circuit）, from components such as controllers 7.It is logical on mobile phone during mobile-phone payment
Believe that module by sending out the data with unique identity information from controller 7, passes through again after being encoded by coding circuit
Signal drive circuit driving energy converter sends out surface acoustic wave signal；The surface acoustic wave signal is transferred to by way of contact transmission
On the induction pedestal of fixed terminal, electric signal is received and converted by the main transducer 2 on induction pedestal, which puts through signal
The master controller 6 that terminal is fixed after the processing such as big circuit, signal acquisition circuit, signal decoding circuit receives and processes, and handles
Fixed terminal feeds back a group acknowledge information to mobile terminal 3 by signal return channel again after the completion, plays signal interaction transmission
Purpose.The circuit form of the composition in signal return channel is similar with the form that signal forward direction is transmitted, i.e., either mobile terminal 3 is gone back
It is that fixed terminal is all integrated with identical processing circuit（Including transmission and reception circuit）.
Embodiment 3
A kind of near field contact communication means based on surface acoustic wave makes mobile terminal 3 contact shape with fixed terminal first
At surface acoustic wave transmission channel, then one of terminal is controlled to another terminal transmission surface acoustic wave signal, another terminal
By transmission channel receiving surface acoustic signals, the information exchange between mobile terminal 3 and fixed terminal is realized.
In the present embodiment, the fixed terminal is by transmission channel to 3 acoustic waves signal of mobile terminal, and movement is eventually
3 receiving surface acoustic signals are held, realize that the information between mobile terminal 3 and fixed terminal is transmitted.The embodiment is suitable for intelligence
Can supplement with money etc. only needs mobile terminal 3 with fixed terminal into the industry of row information unidirectional delivery, and specific implementation method is the same as embodiment 1
It is identical
Embodiment 4
A kind of near field contact communication means based on surface acoustic wave makes mobile terminal 3 contact shape with fixed terminal first
At surface acoustic wave transmission channel, then one of terminal is controlled to another terminal transmission surface acoustic wave signal, another terminal
By transmission channel receiving surface acoustic signals, the information exchange between mobile terminal 3 and fixed terminal is realized.
In the present embodiment, the fixed terminal is by transmission channel to 3 acoustic waves signal of mobile terminal, and movement is eventually
End 3 is handled surface acoustic wave signal after receiving surface acoustic wave signal, and then by treated, surface acoustic wave signal leads to again
It crosses transmission channel and feeds back to fixed terminal, realize the information exchange between mobile terminal 3 and fixed terminal.The embodiment is applicable in
Need the industry of fixed terminal and the progress information exchange transmission of mobile terminal 3, specific implementation method same in Intelligent logistics identification etc.
Embodiment 2 is identical.
Claims (7)
1. a kind of near field contact communication means based on surface acoustic wave, it is characterised in that：Make mobile terminal first（3）With fixation
Terminal contacts to form surface acoustic wave transmission channel, then controls one of terminal to another terminal transmission surface acoustic wave signal,
Another terminal realizes mobile terminal by transmission channel receiving surface acoustic signals（3）Information between fixed terminal is handed over
Mutually；
The fixed terminal includes master controller（6）, induction substrate（1）And main transducer（2）, the master controller（6）Pass through
Signal wire and main transducer（2）Connection, for driving main transducer（2）Reception or acoustic waves signal；It is described mobile whole
End（3）Including from controller（7）, inductive head（4）Be fixed at inductive head（4）On slave energy converter（5）, described from control
Device（7）By signal wire with from energy converter（5）Connection, for driving from energy converter（5）Transmitting or receiving surface acoustic signals；Letter
When breath interaction, inductive head（4）With induction substrate（1）It is in contact to form surface acoustic wave transmission channel.
2. a kind of near field contact communication means based on surface acoustic wave as described in claim 1, it is characterised in that：The shifting
Dynamic terminal（3）By transmission channel to fixed terminal acoustic waves signal, fixed terminal receiving surface acoustic signals are realized
Mobile terminal（3）Information between fixed terminal is transmitted.
3. a kind of near field contact communication means based on surface acoustic wave as described in claim 1, it is characterised in that：The shifting
Dynamic terminal（3）By transmission channel to fixed terminal acoustic waves signal, after fixed terminal receives surface acoustic wave signal
Surface acoustic wave signal is handled, then by treated, surface acoustic wave signal feeds back to mobile terminal by transmission channel again
（3）, realize mobile terminal（3）Information exchange between fixed terminal.
4. a kind of near field contact communication means based on surface acoustic wave as described in claim 1, it is characterised in that：It is described solid
Terminal is determined by transmission channel to mobile terminal（3）Acoustic waves signal, mobile terminal（3）Receiving surface acoustic signals,
Realize mobile terminal（3）Information between fixed terminal is transmitted.
5. a kind of near field contact communication means based on surface acoustic wave as described in claim 1, it is characterised in that：It is described solid
Terminal is determined by transmission channel to mobile terminal（3）Acoustic waves signal, mobile terminal（3）Receive surface acoustic wave signal
Surface acoustic wave signal is handled afterwards, then by treated, surface acoustic wave signal feeds back to fixation eventually by transmission channel again
Mobile terminal is realized at end（3）Information exchange between fixed terminal.
6. a kind of near field contact communication means based on surface acoustic wave as described in claim 1, it is characterised in that：Described
Main transducer（2）Quantity be one or more, for it is multiple when, multiple main transducers（2）It is connected in parallel.
7. a kind of near field contact communication means based on surface acoustic wave as described in claim 1, it is characterised in that：Described
Main transducer（2）Setting is in induction substrate（1）Front, the back side or side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510280419.1A CN104883660B (en) | 2015-05-28 | 2015-05-28 | A kind of near field contact communication means based on surface acoustic wave |
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| CN201510280419.1A CN104883660B (en) | 2015-05-28 | 2015-05-28 | A kind of near field contact communication means based on surface acoustic wave |
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| CN104883660B true CN104883660B (en) | 2018-08-31 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7260221B1 (en) * | 1998-11-16 | 2007-08-21 | Beepcard Ltd. | Personal communicator authentication |
| CN101192256A (en) * | 2006-11-20 | 2008-06-04 | 鸿富锦精密工业（深圳）有限公司 | Electronic device and method for opening same |
| CN101868954A (en) * | 2007-11-21 | 2010-10-20 | Nxp股份有限公司 | Device and method for near field communications using audio transducers |
| CN103634735A (en) * | 2013-11-16 | 2014-03-12 | 周胜 | Near field communication system composed of sound wave communication and wireless communication and communication method |
| CN104660408A (en) * | 2013-11-25 | 2015-05-27 | 国民技术股份有限公司 | Security authentication method and device |
-
2015
- 2015-05-28 CN CN201510280419.1A patent/CN104883660B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7260221B1 (en) * | 1998-11-16 | 2007-08-21 | Beepcard Ltd. | Personal communicator authentication |
| CN101192256A (en) * | 2006-11-20 | 2008-06-04 | 鸿富锦精密工业（深圳）有限公司 | Electronic device and method for opening same |
| CN101868954A (en) * | 2007-11-21 | 2010-10-20 | Nxp股份有限公司 | Device and method for near field communications using audio transducers |
| CN103634735A (en) * | 2013-11-16 | 2014-03-12 | 周胜 | Near field communication system composed of sound wave communication and wireless communication and communication method |
| CN104660408A (en) * | 2013-11-25 | 2015-05-27 | 国民技术股份有限公司 | Security authentication method and device |
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| CN104883660A (en) | 2015-09-02 |
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