CN102339375A - Micro noncontact intelligent card reader - Google Patents
Micro noncontact intelligent card reader Download PDFInfo
- Publication number
- CN102339375A CN102339375A CN2011103160367A CN201110316036A CN102339375A CN 102339375 A CN102339375 A CN 102339375A CN 2011103160367 A CN2011103160367 A CN 2011103160367A CN 201110316036 A CN201110316036 A CN 201110316036A CN 102339375 A CN102339375 A CN 102339375A
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- China
- Prior art keywords
- card reader
- circuit
- antenna
- usb
- noncontact
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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
The invention discloses a micro noncontact intelligent card reader. The micro noncontact intelligent card reader comprises a central processing unit (CPU) circuit (1), a card reader chip (2), a light emitting diode (LED) lamp (3), a universal serial bus to transistor-transistor logic (USB-to-TTL) serial port circuit (4), a USB interface (5), an antenna impedance matching circuit (6) and a printed circuit board (PCB) antenna (7), wherein the CPU circuit (1) is connected with the card reader chip (2); the card reader chip (2) is connected to the PCB antenna (7) through the antenna impedance matching circuit (6); communication between the CPU circuit (1) and a computer is realized through the USB-to-TTL serial port circuit (4); the LED lamp (3) is used for indicating the communication process; and power is supplied by the USB interface (5) of the computer, and an external power supply is not needed. Through the micro noncontact intelligent card reader, transmission of random customized instructions can be realized, so that random customized instruction test of a noncontact integrated circuit (IC) card is conveniently and simply realized; and the communication process is indicated by using the LED lamp.
Description
Technical field
The present invention relates to a kind of miniature contactless smart card reader that is used for the custom instruction test of non-contact IC card.
Background technology
The non-contact IC card manufacturer is in the process of research and development non-contact IC card; Need carry out instruction testing to IC-card; Thereby whether the design standards of judging IC-card meets design standards; But existing IC-card card reader all is the stereotyped command mode of operation that designs according to the consensus standard of ISO/IEC14443, can't realize card is carried out the test of disable instruction, and the custom instruction of the flexible processing of PB and the CRC verification of instruction is tested.
Realize at present relevant disable instruction test and to the parity check sum CRC verification of instruction mostly based on the test platform of American National Instr Ltd.; Perhaps the model of Micropross company is that the test macro of MP300TCL2 is tested; Though above test platform measuring accuracy is higher; But price is very expensive, equipment volume is big, weight is big, is not suitable for low cost, portable, simple custom instruction testing requirement.
Summary of the invention
The present invention is directed to prior art designs the deficiency of custom instruction test non-contact IC card; Purpose is the custom instruction test that realizes non-contact IC card; Adopt miniature design; Be easy to carry, can satisfy being applicable to low cost, portable, simple custom instruction testing requirement.
The present invention realizes through following technical scheme:
A kind of miniature contactless smart card reader; Comprise that card reader chip, LED lamp, USB change TTL serial port circuit and USB interface; It is characterized in that: also comprise cpu circuit, antenna impedance matching and PCB antenna, cpu circuit changes the TTL serial port circuit with card reader chip, LED lamp, USB and is connected; USB changes the TTL serial port circuit and is connected with USB interface, and the card reader chip is connected with antenna impedance matching, and antenna impedance matching is connected with the PCB antenna.
Further preferred version is, described PCB antenna is four layers of PCB design, and resonance frequency is the passive antenna of 13.56MHz.
The present invention can send any self-defining instruction simply and easily, can realize flexible non-contact IC card being carried out the test of any disable instruction.The present invention compares with the test macro of the American National instrument that can realize identical function or Micropross company, and advantages of small volume is light, be easy to carry about with one, and cost is much lower, very can satisfy current testing requirement.
Description of drawings
Fig. 1 is a circuit principle structure schematic block diagram of the present invention.
Among the figure, the 1-CPU circuit, 2-card reader chip, the 3-LED lamp, 4-USB changes TTL serial port circuit, 5-USB interface, 6-antenna impedance matching, 7-PCB antenna.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explain.
Miniature contactless smart card reader of the present invention; Comprise that card reader chip 2, LED lamp 3, USB change TTL serial port circuit 4 and USB interface 5; And cpu circuit 1, antenna impedance matching 6 and PCB antenna 7, cpu circuit 1 is connected with card reader chip 2, and card reader chip 2 is connected on the PCB antenna 7 through antenna impedance matching 6; Cpu circuit 1 changes TTL serial port circuit 4 realizations and compunication through USB; LED lamp 3 indication communication processs, the power supply of total system is provided by the USB mouth 5 of computing machine, need not additional power source.
Communication process of the present invention is: instruct through the software transmit operation on the computing machine; Director data is sent to this device by USB interface of computer 5; Director data changes Transistor-Transistor Logic level serial port circuit 4 through USB and converts Transistor-Transistor Logic level that cpu circuit 1 can discern to and get into cpu circuit 1 by the serial ports of cpu circuit 1; After the communication protocol recognition instruction data of cpu circuit 1 basis and computing machine; Handle, send to card reader chip 2 with handling the director data of back through interface, after the director data that card reader chip 2 sends cpu circuit 1 is modulated with card reader chip 2 to the card operation; Sky line drive circuit by card reader chip 2 sends at the antenna transmission port with aerial signal; Signal is added on the antenna 7 through antenna impedance matching 6, and non-contact card is placed on the antenna 7 of this device, through the signal of electromagnetic field inducing to the antenna transmission; Return data sends the antenna 7 of this device to after carrying out demodulation and deliver to card internal data treatment circuit handling with the signal form of electromagnetic field through the modulation of RF; Antenna 7 receives the antenna receiving port that can issue card reader chip 2 behind the signal that card transmits through antenna impedance matching 6, after card reader chip 2 receives signal through the antenna receiving ports, carries out demodulation and handle the back sending data to cpu circuit 1 through the interface with cpu circuit 1; Cpu circuit 1 sends to USB according to the communication protocol with computing machine after treatment changes Transistor-Transistor Logic level serial port circuit 4; Number is changed into the data of usb protocol, and sends to computing machine through USB interface 5, computing machine with data presentation on Control Software.According to define in the design of program in the cpu circuit and computing machine between communication protocol; Can realize the transmission of any custom instruction; Thereby convenient and simple realization is carried out the test of any custom instruction to non-contact IC card, with LED lamp indication communication process.
Should explain that also employed being of each circuit module of the present invention has the common circuit of electronic technology now, so its particular circuit configurations is not described in detail in this.
In the above-described embodiments, a kind of preferred forms of invention is described, obviously, any change of under the inventive concept of this programme, being made all will fall in protection scope of the present invention.
Claims (2)
1. miniature contactless smart card reader; Comprise that card reader chip (2), LED lamp (3), USB change TTL serial port circuit (4) and USB interface (5); It is characterized in that: also comprise cpu circuit (1), antenna impedance matching (6) and PCB antenna (7), cpu circuit (1) changes TTL serial port circuit (4) with card reader chip (2), LED lamp (3), USB and is connected; USB changes TTL serial port circuit (4) and is connected with USB interface (5), and card reader chip (2) is connected with antenna impedance matching (6), and antenna impedance matching (6) is connected with PCB antenna (7).
2. miniature contactless smart card reader according to claim 1 is characterized in that: described PCB antenna (7) is four layers of PCB design, and resonance frequency is the passive antenna of 13.56MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103160367A CN102339375A (en) | 2011-10-18 | 2011-10-18 | Micro noncontact intelligent card reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103160367A CN102339375A (en) | 2011-10-18 | 2011-10-18 | Micro noncontact intelligent card reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102339375A true CN102339375A (en) | 2012-02-01 |
Family
ID=45515100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103160367A Pending CN102339375A (en) | 2011-10-18 | 2011-10-18 | Micro noncontact intelligent card reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102339375A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107358127A (en) * | 2017-01-25 | 2017-11-17 | 天地融科技股份有限公司 | A kind of recognition methods of legal chip and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200950259Y (en) * | 2006-06-16 | 2007-09-19 | 武汉飞天智能工程有限责任公司 | Radio frequency recognition multi-protocol read-write terminal |
| US20100017881A1 (en) * | 2006-12-26 | 2010-01-21 | Oberthur Technologies | Portable Electronic Device and Method for Securing Such Device |
| CN101807261A (en) * | 2010-03-30 | 2010-08-18 | 上海华腾软件系统有限公司 | Device for reading and writing two different types of contactless intelligent cards and reading-writing method thereof |
| CN201638223U (en) * | 2009-12-31 | 2010-11-17 | 上海哈诚电子科技有限公司 | IC (Integrated Circuit) card reader meeting PC/SC (Personal Computer/Smart Card) and CCID (USB Chip/Smart Card Interface Devices) intelligent card interface protocol |
-
2011
- 2011-10-18 CN CN2011103160367A patent/CN102339375A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200950259Y (en) * | 2006-06-16 | 2007-09-19 | 武汉飞天智能工程有限责任公司 | Radio frequency recognition multi-protocol read-write terminal |
| US20100017881A1 (en) * | 2006-12-26 | 2010-01-21 | Oberthur Technologies | Portable Electronic Device and Method for Securing Such Device |
| CN201638223U (en) * | 2009-12-31 | 2010-11-17 | 上海哈诚电子科技有限公司 | IC (Integrated Circuit) card reader meeting PC/SC (Personal Computer/Smart Card) and CCID (USB Chip/Smart Card Interface Devices) intelligent card interface protocol |
| CN101807261A (en) * | 2010-03-30 | 2010-08-18 | 上海华腾软件系统有限公司 | Device for reading and writing two different types of contactless intelligent cards and reading-writing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107358127A (en) * | 2017-01-25 | 2017-11-17 | 天地融科技股份有限公司 | A kind of recognition methods of legal chip and system |
| CN107358127B (en) * | 2017-01-25 | 2019-11-15 | 天地融科技股份有限公司 | A kind of recognition methods and system of legal chip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120201 |