CN206961133U - A kind of card reader of compatible contact and non-contact IC card - Google Patents
A kind of card reader of compatible contact and non-contact IC card Download PDFInfo
- Publication number
- CN206961133U CN206961133U CN201720136233.3U CN201720136233U CN206961133U CN 206961133 U CN206961133 U CN 206961133U CN 201720136233 U CN201720136233 U CN 201720136233U CN 206961133 U CN206961133 U CN 206961133U
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- China
- Prior art keywords
- chip
- card
- contact
- main control
- control chip
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- 108060006756 PSAM Proteins 0.000 claims abstract description 7
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 5
- 230000002093 peripheral Effects 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 7
- 230000004224 protection Effects 0.000 description 4
- 230000005347 demagnetization Effects 0.000 description 2
- 229920002574 CR-39 Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000000087 stabilizing Effects 0.000 description 1
- 230000001702 transmitter Effects 0.000 description 1
Abstract
The utility model discloses a kind of compatible contact and the card reader of non-contact IC card, including main control chip, safe module, voltage-stabilized power supply chip, USB interface, analog front-end chip, contactless smart IC read-write chips, contact deck is connected by described analog front-end chip with the main control chip；Buzzer and three indicator lamps are connected by I/0 interfaces with the main control chip；The safe module expands 3 PSAM card decks, and LCD liquid crystal display screen and code keypad are connected by the external main control chip of PS/2 interfaces, the contactless smart IC read-write chips by Serial Peripheral Interface (SPI) with the main control chip；The USB interface is powered by voltage-stabilizing power supply chip to the main control chip.The utility model USB is communicated, without driving, plug and play, convenient to use, external LCDs and code keypad, convenient use.
Description
Technical field
It the utility model is related to read write line field, more particularly to the Card Reader of a kind of compatible contact and non-contact IC card
Device.
Background technology
Magnetic stripe card on the market, the cheap of magnetic stripe card, security performance be low, easy demagnetization.Offender typically by
Monitoring camera above ATM, see that holder inputs password, steal the password of holder, for stealing holder
Credit card information.And the copying equipment of bank card even password is stolen equipment and largely come into the market, as the equipment such as card reader exist
Online or electronic market can be bought easily, and the price of equipment set is not expensive.Bank's magnetic stripe card is frequent by brush case is stolen
Occur, national all departments also pay much attention to, and Central Bank there are new rule, it is desirable to magnetic stripe card is eliminated preceding developed area in 2015,
Overall application financial IC card.
Financial IC card, the chip card often said is that is to say, be exactly the upgrade version of magnetic stripe card, chip card capacity is big, and storage capacity is
160 times of magnetic stripe card, the information such as secret key, digital certificate, fingerprint can be stored, there is the good data encryption of read-write protection to protect on chip card
Shield, and personal identification number, card and read write line two-way authentication are taken on using protection, the difficulty of duplication is high, possesses very strong
Anti-attack ability.The stability of financial IC card is also more stronger than magnetic stripe card, is not in the situation of demagnetization.
Utility model content
The utility model provides a kind of compatible contact and the card reader of non-contact IC social security card, improves IC card reader
Stability and security.
The utility model is achieved through the following technical solutions：
The card reader of a kind of compatible contact and non-contact IC card, including main control chip, safe module, voltage-stabilized power supply core
Piece, USB interface, analog front-end chip, contactless smart IC read-write chips, contact deck pass through described AFE(analog front end) core
Piece is connected with the main control chip；Buzzer and three indicator lamps are connected by I/0 interfaces with the main control chip, wherein, three
Individual indicator lamp includes a red led and two green indicating lamps, and the red led is used to indicate power supply status, institute
State two green indicating lamps and indicate respectively the state of snapping into and communication state；The safe module expands 3 PSAM card decks,
LCD liquid crystal display screen and code keypad read and write core by the external main control chip of PS/2 interfaces, the contactless smart IC
Piece is connected by Serial Peripheral Interface (SPI) with the main control chip；
Wherein reset circuit, debug circuit and external crystal oscillation circuit are connected with the main control chip all the way, and another way is multiple
Position circuit, debug circuit and external crystal oscillation circuit are connected with the contactless smart IC read-write chips, described contactless
Intelligent IC read-write chip is also connected with radio-frequency antenna, and the USB interface is powered by voltage-stabilizing power supply chip to the main control chip.
Further, the main control chip uses STM32F103 models.
Further, the analog front-end chip uses DS81113 models.
Further, the voltage-stabilized power supply chip uses LM1117 models.
Further, the contactless smart IC read-write chips use MFRC523 models.
The utility model compared with prior art, has following technique effect：The utility model supports that meeting ISO7816 connects
Touch CPU card, SLE4442, SLE4428 card, while support ISO/IEC14443typeA/B all layers andIt is classical
Agreement, and DES, 3DES algorithm for encryption are supported, while 3 PSAM card decks can be expanded, expand the close commercial encryption of acceding state and calculate
Method, such as SM2, SM3, SM4 algorithm；Communicated using USB2.0, without driving, plug and play, convenient to use, external liquid crystal
Display screen and code keypad, convenient use.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art.It is clear that drawings in the following description are only
Some embodiments of the utility model, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of a kind of compatible contact of the present utility model and the card reader of non-contact IC social security card；
Fig. 2 is the chip pin figure of main control chip of the present utility model；
Fig. 3 is the chip pin figure of analog front-end chip of the present utility model；
Fig. 4 is the circuit structure diagram of voltage-stabilized power supply chip operation of the present utility model；
Fig. 5 is the functional block diagram of contactless smart IC read-write chips of the present utility model.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.
Fig. 1 is the schematic diagram of a kind of compatible contact of the present utility model and the card reader of non-contact IC social security card；Such as
Shown in Fig. 1, the card reader of a kind of compatible contact of the utility model and non-contact IC card, including main control chip, safe module,
Voltage-stabilized power supply chip, USB interface, analog front-end chip, contactless smart IC read-write chips, contact deck passes through described
Analog front-end chip is connected with the main control chip；Buzzer and three indicator lamps are connected by I/0 interfaces and the main control chip
Connect, wherein, three indicator lamps include a red led and two green indicating lamps, and the red led is used to indicate electricity
Source state, described two green indicating lamps indicate respectively the state of snapping into and communication state；The safe module expands 3 PSAM
Card deck, LCD liquid crystal display screen and code keypad pass through the external main control chip of PS/2 interfaces, the contactless smart IC
Read-write chip is connected by Serial Peripheral Interface (SPI) with the main control chip；
Wherein reset circuit, debug circuit and external crystal oscillation circuit are connected with the main control chip all the way, and another way is multiple
Position circuit, debug circuit and external crystal oscillation circuit are connected with the contactless smart IC read-write chips, described contactless
Intelligent IC read-write chip is also connected with radio-frequency antenna, and the USB interface is powered by voltage-stabilizing power supply chip to the main control chip.
Fig. 2 is the chip pin figure of main control chip of the present utility model, as illustrated, main control chip uses STM32F103
Model.STM32F103 uses high performance ARM Cortex-M3 32 RISC core, working frequency 72MHz, built-in height
Fast memory (the up to flash memory of 128K bytes and the SRAM of 20K bytes), abundant enhancing I/O ports and is connected to two APB
The peripheral hardware of bus.The device of all models is all comprising the ADC of 2 12,3 general 16 bit timing devices and a PWM timing
Device, also comprising standard and advanced communication interface：Up to 2 I2C and SPI, 3 USART, USB and CAN.
STM32F103 hardware circuit diagrams such as Fig. 2.TX, RX are UART interface, are responsible for communicating with PC.BUZZER is buzzer control mouth.
LED_PWRON is electric indicator lamp control mouth on card.LED_PRES is that card inserts beacon lamp control mouth.CLK、RST、IO、
PWRSRC, CMDVCC, OFF, it is responsible for communicating with IC-card.
Fig. 3 is the chip pin figure of analog front-end chip of the present utility model, as illustrated, analog front-end chip uses
DS81113 models, support meet ISO7816 contact type CPU cards, SLE4442, SLE4428 card.DS8113 contact intelligent cards connect
Mouth is a low cost, the AFE(analog front end) intelligent card reader of low-power consumption, aims at ISO7816 and designs.DS8113 supports 5V, 3.3V
With 1.8V contact intelligent card, the dynamic mode and standby mode of low-power consumption can be selected, standby mode need to only consume 10nA
Standby current, and devise the interface and intelligent card interface with system, there is provided Contact Type Ic Card is using all required electricity
Source, ESD protections etc..
Safe module supports DES, 3DES algorithm for encryption, while can expand 3 PSAM card decks, and it is close can to expand acceding state
Commercial encryption algorithm, such as SM2, SM3, SM4 algorithm.Security module is made up of two large divisions, and AES is embedded in by a part
Among main control chip, such as DES, 3DES AES are realized；Another part is provided a series of by independent safety chip
Encryption and decryption, signature verification function, the data of safety chip need to be output to processor by external pin, can be independent
Safety chip is inserted among PSAM decks to realize.Two kinds are combined with each other, and improve the security of whole system.
Fig. 4 is the circuit structure diagram of voltage-stabilized power supply chip operation of the present utility model, and voltage-stabilized power supply chip uses LM1117
Model.The utility model is powered by USB, and USB interface 5V, STM32F103 voltage are 2.0V-3.6V, and DS8113 is supported
5V, 3.3V and 1.8V smart card, therefore system is finally powered using 3.3V.System is carried using LM1117-3.3 voltage stabilizing chips
For a stable 3.3V power supply.
Fig. 5 is the functional block diagram of contactless smart IC read-write chips of the present utility model, as shown in figure 5, this practicality is new
The contactless smart IC read-write chips of type using NXP companies MFRC523.MF RC23 support ISO/IEC14443A/B
All layers andClassical protocols, and the standard compatible with the standard.Support at a high speedIt is non-to connect
Touch communication baud rate, the transmission that 212kbit/s, 424kbit/s and 848kbit/s are higher under ISO/IEC 14443A can be supported
The communication of speed.Internal transmitter part, which need not increase active circuit, can just directly drive the antenna of near operation distance.
Receiver part provides a firm and effective demodulation and decoding circuitry, the transponder signal compatible for ISO14443A.Number
Character segment handles ISO14443A frames and error detection.In addition, quick CRYPTO1 AESs are also supported, for verifying MIFARE
Series of products.SPI mode is used to be communicated with main control chip in the utility model.
The circuit such as reset circuit, debug circuit and external crystal oscillation circuit is this area used in the utility model
Common circuit, those skilled in the art can be readily available according to the design needs.
Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The all other embodiment obtained, belong to the scope of the utility model protection.Although the utility model just side of being preferable to carry out
Formula is illustrated and described, it is understood by those skilled in the art that without departing from claim of the present utility model
Limited range, variations and modifications can be carried out to the utility model.
Claims (5)
- A kind of 1. card reader of compatible contact and non-contact IC card, it is characterised in that：Including main control chip, safe module, Voltage-stabilized power supply chip, USB interface, analog front-end chip, contactless smart IC read-write chips, contact deck passes through described Analog front-end chip is connected with the main control chip；Buzzer and three indicator lamps are connected by I/0 interfaces and the main control chip Connect, wherein, three indicator lamps include a red led and two green indicating lamps, and the red led is used to indicate electricity Source state, described two green indicating lamps indicate respectively the state of snapping into and communication state；The safe module expands 3 PSAM Card deck, LCD liquid crystal display screen and code keypad pass through the external main control chip of PS/2 interfaces, the contactless smart IC Read-write chip is connected by Serial Peripheral Interface (SPI) with the main control chip；Wherein reset circuit, debug circuit and external crystal oscillation circuit are connected with the main control chip all the way, and another way resets electricity Road, debug circuit and external crystal oscillation circuit are connected with the contactless smart IC read-write chips, the contactless smart IC read-write chips are also connected with radio-frequency antenna, and the USB interface is powered by voltage-stabilizing power supply chip to the main control chip.
- 2. the card reader of a kind of compatible contact according to claim 1 and non-contact IC card, it is characterised in that：It is described Main control chip uses STM32F103 models.
- 3. the card reader of a kind of compatible contact according to claim 1 and non-contact IC card, it is characterised in that：It is described Analog front-end chip uses DS81113 models.
- 4. the card reader of a kind of compatible contact according to claim 1 and non-contact IC card, it is characterised in that：It is described Voltage-stabilized power supply chip uses LM1117 models.
- 5. the card reader of a kind of compatible contact according to claim 1 and non-contact IC card, it is characterised in that：It is described Contactless smart IC read-write chips use MFRC523 models.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720136233.3U CN206961133U (en) | 2017-02-15 | 2017-02-15 | A kind of card reader of compatible contact and non-contact IC card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720136233.3U CN206961133U (en) | 2017-02-15 | 2017-02-15 | A kind of card reader of compatible contact and non-contact IC card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206961133U true CN206961133U (en) | 2018-02-02 |
Family
ID=61376939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720136233.3U Expired - Fee Related CN206961133U (en) | 2017-02-15 | 2017-02-15 | A kind of card reader of compatible contact and non-contact IC card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206961133U (en) |
-
2017
- 2017-02-15 CN CN201720136233.3U patent/CN206961133U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191212 Address after: 510000 Guangdong city in Guangzhou Province, Xinhua Street, Huadu District Road No. 88 days Patentee after: Guangzhou Sysur Microelectronics, Inc. Address before: 510000 Guangdong province Guangzhou City Huadu District days Road No. 88 Co-patentee before: GUANGZHOU SMART CITY DEVELOPMENT RESEARCH INSTITUTE Patentee before: Guangzhou Sysur Microelectronics, Inc. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180202 Termination date: 20200215 |