CN207367216U - A kind of card reader - Google Patents
A kind of card reader Download PDFInfo
- Publication number
- CN207367216U CN207367216U CN201721063967.XU CN201721063967U CN207367216U CN 207367216 U CN207367216 U CN 207367216U CN 201721063967 U CN201721063967 U CN 201721063967U CN 207367216 U CN207367216 U CN 207367216U
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- China
- Prior art keywords
- card
- main control
- nfc
- control chip
- antenna
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Closely exchange technology is the utility model is related to, the utility model proposes a kind of card reader, including：Main control chip, the main control chip have Bluetooth interface module, and the Bluetooth interface module is used to connect mobile phone；NFC card reading modules, the NFC card reading modules are used to interact with all-purpose card, and the main control chip and the NFC card reading modules carry out data interaction by SPI interface, and the data in all-purpose card are transferred to the mobile phone via the Bluetooth interface module.The card reader of the utility model is more frivolous, cost is lower, and city one-card can be carried out to supplement load with money.
Description
Technical field
Closely exchange technology is the utility model is related to, more particularly, to a kind of Card Reader for employing NFC technique
Device.
Background technology
NFC (Near Field Communication) wireless near field communication is initiated by PHILIPS Co., by promise base
The well-known manufacturers such as Asia, Sony combine the wireless technology promoted mainly.Much high terminal all carries NFC to present Android smartphone
The function of Card Reader, these mobile phones with NFC card-reading functions, which can be realized, to carry out city one-card to supplement load with money, eliminates to ground
Iron station is lined up the trouble supplemented with money.
The load card reader of the prior art is carried out data transmission using audio port, and uses the scheme of audio port, is passed
Defeated speed is slow, unstable, and user experience is poor.Moreover, also many mobile phones are without NFC card-reading functions.
Utility model content
The utility model proposes a kind of card reader of new construction, the card reader includes：Main control chip, the main control chip
With Bluetooth interface module, the Bluetooth interface module is used to connect mobile phone；NFC card reading modules, the NFC card reading modules are used for
Interacted with all-purpose card, the main control chip and the NFC card reading modules carry out data interaction, all-purpose card by SPI interface
Interior data are transferred to the mobile phone via the Bluetooth interface module.
Alternatively, the main control chip is NRF51822.
Alternatively, the NFC card reading modules include：Radio frequency chip, the radio frequency chip have SPI interface, for institute
Main control chip is stated to communicate；Antenna receiving circuit, the antenna receiving circuit are connected to the radio frequency chip；Antenna match electricity
Road, the antenna-matching circuit are connected to the radio frequency chip and the antenna receiving circuit；NFC antenna coil, NFC antenna line
Circle is connected to the antenna-matching circuit.
Alternatively, the radio frequency chip is PN512.
Alternatively, the SPI interface includes 29 foot SCK, 30 foot MOSI, 31 foot MISO and the 24 foot NSS of chip PN512.
The load card reader of the utility model can be applied to the mobile phone without NFC card-reading functions, achieve all-purpose card
The function of load.The load card reader transmission rate of the utility model will soon at least more than one times compared to audio port, Er Qiegeng
Stablize, can not have to be inserted on mobile phone to use, user experience is more preferable.
Brief description of the drawings
Fig. 1 is the structure principle chart of the card reader of the utility model.
Fig. 2 is the circuit structure diagram of the NFC card reading modules of the card reader in Fig. 1.
Embodiment
The embodiment of the utility model is described with reference to the accompanying drawings, wherein the identical reference numeral table of identical component
Show.
As shown in Figure 1, the card reader of the utility model includes main control chip, the main control chip has blue tooth interface mould
Block, it is preferable that main control chip uses NRF51822.The Bluetooth interface module is used to connect mobile phone.The main control chip and hand
Data interaction is carried out using bluetooth approach between machine.
The card reader further includes NFC card reading modules, and the NFC card reading modules are used to interact with all-purpose card.It is described
Main control chip and the NFC card reading modules carry out data interaction by SPI interface.With the data that all-purpose card interacts via institute
State bluetooth approach and be transferred to mobile phone.
In addition, the main control chip receives the order of mobile phone by Bluetooth interface module, then pass through NFC card reading modules again
Perform corresponding order.NFC card reading modules can be returned to main control chip when receiving the response of return, and main control chip again returns card
The response returned returns to mobile phone by bluetooth, is equivalent to the bridge taken between mobile phone and card.
Fig. 2 shows the circuit diagram of an embodiment of the NFC card reading modules.The NFC card reading modules include penetrating
Frequency chip, the radio frequency chip can use the PN512 of NXP companies.The radio frequency chip has SPI interface, for it is described
Main control chip communicates.As shown in Fig. 2, SPI interface includes 29 foot-SCK, 30 foot-MOSI, 31 foot-MISO, 24 foot-NSS.
The NFC card reading modules further include antenna receiving circuit, and the antenna receiving circuit is made of capacitance, resistance.Institute
State antenna receiving circuit and be connected to the radio frequency chip.
The NFC card reading modules further include antenna-matching circuit, and the antenna-matching circuit is connected to the radio frequency chip
With antenna receiving circuit, the antenna-matching circuit is made of capacitance and inductance.
The NFC card reading modules further include NFC antenna coil, and NFC antenna coil is connected to antenna-matching circuit.
NFC antenna coil is interacted with China second-generation identity card, and signal passes through antenna-matching circuit and antenna receiving circuit
The radio frequency chip is transferred to after matching somebody with somebody, the main control chip is then transferred to by SPI interface again, then pass via the bluetooth approach
It is defeated by mobile phone.
Embodiment described above, simply the utility model more preferably embodiment, those skilled in the art
The usual variations and alternatives carried out in the range of technical solutions of the utility model should all be included in the scope of protection of the utility model
It is interior.
Claims (4)
- A kind of 1. card reader, it is characterised in that including：Main control chip, the main control chip have Bluetooth interface module, and the Bluetooth interface module is used to connect mobile phone；NFC card reading modules, the NFC card reading modules are used to interact with all-purpose card, the main control chip and the NFC Card Readers Module carries out data interaction by SPI interface, and the data in all-purpose card are transferred to the mobile phone via the Bluetooth interface module, The NFC card reading modules include：Radio frequency chip, the radio frequency chip have SPI interface, for being led to the main control chip Letter；Antenna receiving circuit, the antenna receiving circuit are connected to the radio frequency chip；Antenna-matching circuit, the antenna match Circuit is connected to the radio frequency chip and the antenna receiving circuit；And NFC antenna coil, NFC antenna coil are connected to institute State antenna-matching circuit.
- 2. card reader according to claim 1, it is characterised in thatThe main control chip is NRF51822.
- 3. card reader according to claim 1, it is characterised in thatThe radio frequency chip is PN512.
- 4. card reader according to claim 3, it is characterised in thatThe SPI interface includes 29 foot SCK, 30 foot MOSI, 31 foot MISO and the 24 foot NSS of chip PN512.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721063967.XU CN207367216U (en) | 2017-08-23 | 2017-08-23 | A kind of card reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721063967.XU CN207367216U (en) | 2017-08-23 | 2017-08-23 | A kind of card reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207367216U true CN207367216U (en) | 2018-05-15 |
Family
ID=62422343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721063967.XU Active CN207367216U (en) | 2017-08-23 | 2017-08-23 | A kind of card reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207367216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109064603A (en) * | 2018-08-02 | 2018-12-21 | 广州大白互联网科技有限公司 | A kind of method and access control system for opening gate inhibition |
-
2017
- 2017-08-23 CN CN201721063967.XU patent/CN207367216U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109064603A (en) * | 2018-08-02 | 2018-12-21 | 广州大白互联网科技有限公司 | A kind of method and access control system for opening gate inhibition |
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