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 PDF

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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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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.)
Expired - Fee Related
Application number
CN201720136233.3U
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Chinese (zh)
Inventor
吴劲
吴江旭
李启文
梁津铨
Original Assignee
Guangzhou Smart City Development Research Institute
GUANGZHOU SYSUR MICROELECTRONICS Inc
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Application filed by Guangzhou Smart City Development Research Institute, GUANGZHOU SYSUR MICROELECTRONICS Inc filed Critical Guangzhou Smart City Development Research Institute
Priority to CN201720136233.3U priority Critical patent/CN206961133U/en
Application granted granted Critical
Publication of CN206961133U publication Critical patent/CN206961133U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

A kind of card reader of compatible contact and non-contact IC card
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)

  1. 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. 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. 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. 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. 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.
CN201720136233.3U 2017-02-15 2017-02-15 A kind of card reader of compatible contact and non-contact IC card Expired - Fee Related CN206961133U (en)

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

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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)

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CN (1) CN206961133U (en)

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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