CN207541649U - A kind of single-frequency password card - Google Patents
A kind of single-frequency password card Download PDFInfo
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- CN207541649U CN207541649U CN201720469479.2U CN201720469479U CN207541649U CN 207541649 U CN207541649 U CN 207541649U CN 201720469479 U CN201720469479 U CN 201720469479U CN 207541649 U CN207541649 U CN 207541649U
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- card
- wake
- frequency
- password card
- frequency password
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Abstract
The utility model is related to a kind of single-frequency password cards, the accurate sorting based on Path Recognition or accurate payment can be realized with alternative composite password card (CPC cards), it includes：Microprocessor is connect by power-supplying circuit with lithium battery, to realize the control of the power supply to entire card；Microprocessor is by the connection of card chip module (comprising card control module and secret key module), to realize the reading and writing data of card and certification；It is connect by DSRC radio-frequency modules with antenna, realizes wireless communication function；Microprocessor controls the on or off of 5.8GHz single-frequency password card 5.8GHz wake-up circuits by the state of RF switch signal.The utility model saves space and can be used for improving battery capacity.Simultaneously because using single-frequency circuit so that it is simple in structure, expense is saved, improves reliability.
Description
Technical field
The utility model is related to wireless payment field, especially a kind of single-frequency password card.
Background technology
The compound password card of turn pike networked fee collection ambiguity path identification has 5.8GHz modules and 13.56MHz
Module.Meet《The requirement of turn pike networked fee collection ambiguity path identification technology》Department of Transportation of Ministry of Communications No. 40 bulletin in 2015
It is required that.
The compound password card of national standard has used two frequencies of 5.8GHz and 13.56MHz at present, the former be used for realize on the way
The communication of beacon station, the latter are used for opening wake-up circuit in inlet and the data in card are read in exit and close wake-up electricity
Road.
The shortcomings that compound password card be due to《The requirement of turn pike networked fee collection ambiguity path identification technology》Middle regulation
The appearance and size of compound password card is 85.5mm × 54mm × 5mm, and in addition the coil of 13.56MHz is put together with battery, and
The electronic component that volume is mainly accounted in card is battery and coil, and wherein battery is used for giving other electronics, and coil
In general multiple functions are had concurrently, streak the coil-induced electric current of card reader generation first with coil to wake up card on-chip circuit
Work, secondary coil are also used as the antenna that card carries out data transmit-receive with card reader.It is understood that the bigger electricity of battery
More sufficient, the working sensitivity high stability of electronic device is good in card, while card is also more durable.The bigger number of turn of coil is more
The raw sensing electric current of fecund is bigger, and the performance as antenna transceiving data is better, thus card is also sensitiveer is not easy not brush
Or read-write failure, and this point is vital for wireless payment system.And battery must keep one with coil
Fixed gap could meet Card Reader requirement, battery capacity size thus be limited, it is difficult to meet the requirement of 5 years.
And the antenna of 5.8GHz modules is smaller without using coil.If 13.56MHz modules can be removed, using 5.8GHz
Module single-frequency then may not need to realize payment and save more space using coil for installing the battery of more capacity.
But if after cancelling the coil of 13.56MHz using 5.8GHz single-frequency, just it can not streak card reader using coil
The coil-induced electric current generated works to wake up card on-chip circuit, while is also required to read this list using 5.8GHz card reader
The payment information of frequency password card, this just needs us to be transformed single-frequency password card internal circuit.
Utility model content
The purpose of this utility model is that it is based on the above problem and provides a kind of volume compact simultaneously for wireless payment system
The single-frequency password card of dependable performance.
In order to achieve the above object, the utility model is realized in this way, a kind of single-frequency password card is provided, including：Micro- place
Reason device is connect by power-supplying circuit with lithium battery, to realize the control of the power supply to entire card；Microprocessor passes through card
The connection of piece chip module (including card control module and secret key module), to realize the reading and writing data of card and certification；Pass through
DSRC radio-frequency modules are connect with antenna, realize wireless communication function；Microprocessor is controlled by the state of RF switch signal
The on or off of 5.8GHz single-frequency password card 5.8GHz wake-up circuits.
Wherein, the switch is a thimble, touches the thimble, the 5.8GHz single-frequency password card 5.8GHz wake-up circuit quilts
It opens.The switch can also be a tongue tube, apply a magnetic field, which is beaten
It opens.There are one 5.8GHz dedicated short-range communication technical communication modules for 5.8GHz single-frequency password card tool.The 5.8GHz single-frequency is passed through
The wake-up circuit for completing 5.8GHz modules after entrance is merchandised is stuck in always in opening state.The 5.8GHz single-frequency password cards are complete
The wake-up circuit of 5.8GHz modules is automatically closed after merchandising into outlet.
The beneficial effects of the utility model are：The single-frequency Path Recognition card of the utility model uses only the single frequencies of 5.8GHz
Rate eliminates the frequency of 13.56MHz.Single-frequency card is realized using special key instead of the larger 13.56MHz coils of area
Triggering wakes up, and the circuit of the frequency of 5.8GHz has been reused in the communication of entrance and card.The 5.8GHz single-frequency of the utility model
Password card eliminates the larger coil of volume using switch, improves battery capacity.Simultaneously using single-frequency circuit so that structure letter
It is single, expense is saved, improves reliability.
Description of the drawings
Fig. 1 is a kind of circuit block diagram of compound password card；
Fig. 2 is the circuit block diagram of the 5.8GHz single-frequency password cards of the utility model；
Fig. 3 is the internal structure schematic diagram of the tongue tube used in the utility model one embodiment；
Specific embodiment
The utility model is described in further detail below in conjunction with drawings and examples：
Referring initially to Fig. 1, Fig. 1 is a kind of circuit block diagram of the compound password card of double frequency.The compound password card of double frequency in Fig. 1
The referred to as compound password card of turn pike networked fee collection ambiguity path identification.It meets《Turn pike networked fee collection ambiguity
Property the requirement of Path Recognition technology》No. 40 bulletin requirement in 2015 of Department of Transportation of Ministry of Communications.An as shown in Figure 1, compound password card
Inside be mainly the following circuit components composition, using MCU microcontrollers as the control core of whole card, pass through confession
Electric control module is connect with lithium battery, to realize the power supply to entire card；Pass through DSRC (Dedicated Short Range
Communications, dedicated short-range communication technology) wake up, receive and transmitting module connect with DSRC antennas, realization DSRC lead to
Telecommunication function and road side station devices exchange data, the path that record vehicle passes through；By CPU card control module respectively with secret key certification
Module is connected to realize the reading and writing data blocked and certification with coil.Here coil play the role of being drawn first with coil
The coil-induced electric current of card reader generation is crossed to wake up the work of card on-chip circuit, secondary coil is also used as card and Card Reader
Device carries out the antenna of data transmit-receive.Because compound password card is related to DSRC, communication holds vehicle with roadside station equipment intersection record
The path of process, can be without such function, also just without corresponding in the typical contactless payment of other
DSRC wake-ups, reception and transmitting module and DSRC antennas.Battery, coil are related generally to for simplicity the utility model,
Remaining electronic component we be referred to as circuit part.
Referring next to Fig. 2, Fig. 2 is a kind of circuit block diagram of the 5.8GHz single-frequency password cards of the utility model.With showing
Some dual-frequency combination cards eliminate 13.56MHz coils compared to it.It is connected by microprocessor by power-supplying circuit and lithium battery
It connects, to realize the control of the power supply to entire card；Microprocessor is by card chip module (comprising card control module and secret
Key module) connection, with realize card reading and writing data and certification pass through；DSRC radio-frequency modules are connect with antenna, realize channel radio
Telecommunication function realizes DSRC communication functions and entrance lane equipment, exit lane equipment and road side station devices exchange data, records vehicle
Pass through path；But such circuit structure can not streak the line of card reader generation because eliminating coil by coil
Circle sensing electric current wakes up the work of card on-chip circuit so that card, which can be only in normally off, can not wake up work or can only
Cause in normally open most without using the consumption that cannot close and increase battery in the times blocked.
In order to solve 5.8GHz switching functions, increase a touch-switch in single-frequency password card, in entrance the lane in which the drivers should pay fees
5.8GHz tabletop machines on increase a special thimble, single-frequency password card just pins this after being placed on the tabletop machine and touches out
It closes, after password card is written in access information by entrance lane, 5.8GHz functions will be kept open, only in exit lane table
After outlet information is written on the machine of face, 5.8GHz functions are automatically closed.
It please refers to Fig.3, Fig. 3 is the internal structure schematic diagram of the tongue tube used in the utility model one embodiment.Fig. 3
In, we to wake up instead of touch-switch using tongue tube and to close the simpler Q-percentile life of 5.8GHz modules longer.Such as Fig. 3
Shown tongue tube internal structure has two class of a, b.A classes switch contact in the presence of magnetic field will be closed.B classes switch is touched with transfevent
Point.When applying a magnetic field, common contact will be transferred to normally opened contact from normally-closed contact.
Only it need to increase a magnetic field on the 5.8GHz tabletop machines of entrance the lane in which the drivers should pay fees in this way, single-frequency password card is placed on the table
It being exactly in after on the machine of face in the magnetic field, magnetic field causes tongue tube to be closed, after password card is written in access information by entrance lane,
5.8GHz functions will be kept open, and after outlet information is written only on exit lane tabletop machine, 5.8GHz functions are automatic
It closes.
Due to eliminating the device of this card inner volume maximum of coil so that there is more space more capacities in card
Battery.It is closed simultaneously by the way that switch single-frequency module is set only to open when in use when card recycles, so that battery
Service life is further increased.
The example of the utility model is the single-frequency password card of 5.8GHz, it is clear that the utility model is readily applicable to other
Any single-frequency Payment Card or password card of working frequency.
Those skilled in that art can also make other deformations in the creation spirit of the utility model, these are according to this practicality
Novel creation spirit and derivative various modifications should belong within the scope of protection of the utility model.
Claims (6)
1. a kind of single-frequency password card, including：
Microcontroller is directly connect with power control module with lithium battery, to realize the power supply to entire card；
Microprocessor is by the connection of card chip module, to realize the reading and writing data of card and certification；
By waking up, receiving and transmitting module is connect with antenna, wireless communication function is realized；
It is characterized in that, microprocessor by one switch come control wake-up, reception and transmitting module wake-up circuit enable or
It closes.
2. a kind of single-frequency password card as described in claim 1, it is characterised in that the switch is a thimble, touches the top
Needle, the wake-up circuit of the wake-up of the single-frequency password card, reception and transmitting module are opened.
3. a kind of single-frequency password card as described in claim 1, it is characterised in that the switch is a tongue tube, applies one
Magnetic field, the wake-up circuit of the wake-up of the single-frequency password card, reception and transmitting module are opened.
4. a kind of single-frequency password card as described in claim 1, it is characterised in that there are one 5.8GHz for the single-frequency password card tool
Dedicated short-range communication technical communication module.
5. a kind of single-frequency password card as described in claim 1, it is characterised in that the single-frequency password card completes entrance transaction
The wake-up circuit of wake-up, reception and transmitting module is in opening state always afterwards.
6. a kind of single-frequency password card as described in claim 1, it is characterised in that the single-frequency password card completes outlet transaction
The wake-up circuit of wake-up, reception and transmitting module is automatically closed afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720469479.2U CN207541649U (en) | 2017-04-27 | 2017-04-27 | A kind of single-frequency password card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720469479.2U CN207541649U (en) | 2017-04-27 | 2017-04-27 | A kind of single-frequency password card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207541649U true CN207541649U (en) | 2018-06-26 |
Family
ID=62607182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720469479.2U Active CN207541649U (en) | 2017-04-27 | 2017-04-27 | A kind of single-frequency password card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207541649U (en) |
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2017
- 2017-04-27 CN CN201720469479.2U patent/CN207541649U/en active Active
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