CN201465148U - Radio-frequency card read/write device - Google Patents
Radio-frequency card read/write device Download PDFInfo
- Publication number
- CN201465148U CN201465148U CN2009201238721U CN200920123872U CN201465148U CN 201465148 U CN201465148 U CN 201465148U CN 2009201238721 U CN2009201238721 U CN 2009201238721U CN 200920123872 U CN200920123872 U CN 200920123872U CN 201465148 U CN201465148 U CN 201465148U
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- radio
- frequency card
- circuit module
- card read
- write
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Abstract
The utility model discloses a radio-frequency card read/write device which comprises an MCU control circuit module, a radio-frequency card read/write circuit module, an antenna and a power supply, wherein the control output terminal of the MCU control circuit module is connected with the input terminal of the radio-frequency card read/write circuit module; an address data bus of the MCU control circuit module is connected with an address data bus of the radio-frequency card read/write circuit module; a signal wire of the radio-frequency card read/write circuit module is connected with the antenna; and both the MCU control circuit module and the radio-frequency card read/write circuit module are connected with the power supply. The radio-frequency card read/write device further comprises an IRDA serial interface device; and a serial port of the MCU control circuit module is connected with a communication signal port of the IRDA serial interface device. The radio-frequency card read/write device is provided with a standard IRDA interface, thereby carrying out data exchange with the outside to realize the data management, and providing the foundation for realizing further developments of the integration of radio-frequency card application systems, the data management, etc.
Description
Technical field
The utility model relates to the radio-frequency card read-write equipment, relates in particular to the many standard radio frequencies card read-write equipment that has the IRDA interface.
Background technology
Extensively exist contactless chip card reader or radio-frequency card to be called for short (rfid card) at present on the domestic and international market, its frequency of operation mostly is 125KHz.Early stage radio-frequency card card reading module often can only be discerned a kind of international standard, does not possess the use compatibility to other international standard radio-frequency cards, poor compatibility, and the radio-frequency card of different international standards can not use in same system.Applied for that the patent No. is 200420002521.2 before me, name is called a kind of contactless smart card read-write equipment, and this contactless smart card read-write equipment can be discerned a plurality of international standards, and is compatible good, highly versatile, the shortcoming of contactless chip card reader poor compatibility before having solved.But this contactless smart card read-write equipment does not have general standard interface; Do not possess with the outside and carry out data interchange capacity, can't realize data management.Therefore how to develop a kind of standard interface that has, can carry out exchanges data, realize that the radio-frequency card read-write equipment of data management becomes the important topic of those skilled in the art's research with the outside.
Summary of the invention
Problem to be solved in the utility model is exactly the shortcoming at prior art, and a kind of radio-frequency card read-write equipment is provided, and has standard interface, can carry out exchanges data with the outside, realizes data management.
In order to solve technique scheme, the utility model adopts following technical scheme: a kind of radio-frequency card read-write equipment, comprise the MCU control circuit module, radio-frequency card read/write circuit module, antenna and power supply, the control output end of MCU control circuit module is connected in the input end of radio-frequency card read/write circuit module, the address data bus of MCU control circuit module is connected with the address data bus of radio-frequency card read/write circuit module, the signal wire of radio-frequency card read/write circuit module links to each other with antenna, described MCU control circuit module all is connected with power supply with radio-frequency card read/write circuit module, it is characterized in that: also comprise the IRDA series interface part, the serial port of MCU control circuit module is connected with the signal of communication port of IRDA series interface part.
Further, described MCU control circuit module comprises MCU microprocessor and the first auxiliary oscillator circuit module that is connected with the MCU microprocessor.
As preferably, described MCU microprocessor is the 89C51 integrated circuit (IC) chip.
Further, described radio-frequency card read/write circuit module comprises intelligent read integrated circuit modules and the second auxiliary oscillator circuit module that is connected with the intelligent read integrated circuit modules.
As preferably, described intelligent read integrated circuit modules is the RC632 integrated circuit (IC) chip.
As preferably, described RC632 integrated circuit (IC) chip is carried out ISO/IEC 14443A, ISO/IEC14443B and 15,693 three kinds of international standards of ISO/IEC.
Further, described IRDA series interface part is made of the standard integrated circuit modules.
As preferably, described standard integrated circuit modules is the TFDS4500 chip.
Further, be connected with the IRDA data acquisition unit that carries out wireless data exchange with the MCU control circuit module on the described IRDA series interface part.
Advantage of the present utility model is: the utility model is with the microcontroller technology, standard non-contact intelligent IC-card identification of multinational border and standard IR DA serial interface technologies are the basis, realize the control of radio-frequency card read/write circuit by the program in the microcontroller MCU chip, operation, analyze the intelligent card data content, user's validity of checking smart card, valid data are handled, storage and output. the radio-frequency card read/write circuit carries out exchanges data by antenna and radio-frequency card, judge the physics validity of non-contact card, carry out data transmission with MCU, and under the control of MCU, carrying out reading and writing data. microcontroller MCU carries out wireless data exchange by standard IR DA series interface part and exterior I RDA data acquisition unit, realize data management and control. the utlity model has standard IR DA interface, for deep level developments such as the integration that realizes the radio-frequency card application system and data management are laid a good foundation.
Description of drawings
Below in conjunction with accompanying drawing feature of the present utility model and advantage are further described:
Fig. 1 is a circuit structure block diagram of the present utility model;
Fig. 2 is a physical circuit schematic diagram of the present utility model.
Embodiment
Fig. 1 is the circuit block diagram of a kind of radio-frequency card read-write equipment of the utility model: comprise MCU control circuit module 1, radio-frequency card read/write circuit module 2, antenna 3 and power supply 4, the control output end of MCU control circuit module 1 is connected in the input end of radio-frequency card read/write circuit module 2, the address data bus of MCU control circuit module 1 is connected with the address data bus of radio-frequency card read/write circuit module 2, described MCU control circuit module 1 all is connected with power supply 4 with radio-frequency card read/write circuit module 2, the signal wire of radio-frequency card read/write circuit module 2 links to each other with antenna 3, also comprise IRDA series interface part 5, the serial port of MCU control circuit module 1 is connected with the signal of communication port of IRDA series interface part 5.Radio-frequency card read/write circuit module 2 is carried out data transmission and carry out reading and writing data under the control of MCU control circuit module 1 by physics validity and MCU control circuit module 1 that antenna 3 and radio-frequency card carry out exchanges data, judgement non-contact card.Be provided with program in the MCU chip of MCU control circuit module 1, radio-frequency card read/write circuit module 2 is controlled, is operated, analyze data content, the checking intelligent RF card of intelligent RF card user's validity, valid data are handled, are stored and export.MCU control circuit module 1 is carried out wireless data exchange by IRDA series interface part 5 and IRDA data acquisition unit 6, realizes data management and control, and above-mentioned IRDA serial line interface also can be described as serial infrared port.
Fig. 2 is the physical circuit schematic diagram of a kind of radio-frequency card read-write equipment of the utility model: described MCU control circuit module 1 comprises the microcontroller MCU11 and first auxiliary oscillator circuit 12, and described first auxiliary oscillator circuit 12 is connected with MCU microcontroller 11.First auxiliary oscillator circuit 12 preferably is made of a crystal oscillator, two filter capacitors and a resistance, produces oscillator signal by first auxiliary oscillator circuit 12 and makes MCU microcontroller 11 operate as normal.Described MCU microcontroller 11 is the 89C51 integrated circuit (IC) chip.Described radio-frequency card read/write circuit module 2 comprises the intelligent read integrated circuit modules 21 and second auxiliary oscillator circuit 22, and described intelligent read integrated circuit modules 21 is connected with second auxiliary oscillator circuit 22.Second auxiliary oscillator circuit 22 preferably is made of a crystal oscillator, two filter capacitors and a resistance, produces oscillator signal by second auxiliary oscillator circuit 22 and makes intelligent read integrated circuit modules 21 operate as normal.Described intelligent read integrated circuit modules 21 is the RC632 integrated circuit (IC) chip.Described RC632 integrated circuit (IC) chip is carried out ISO/IEC 14443 A, ISO/IEC 14443 B and 15,693 three kinds of international standards of ISO/IEC.Described IRDA series interface part 5 is made of standard integrated circuit modules 51, preferably adopts the TFDS4500 chip.
The 89C51 integrated circuit (IC) chip is controlled the core RC632 integrated circuit operation of radio-frequency card read/write circuit module 2 by sheet selected control system P1.0, read-write control W and R signal; RC632 integrated circuit (IC) chip in the radio-frequency card read/write circuit module 2 is connected with radio-frequency card read-write antenna 3 with TX2 by RX, TX1, and radio frequency is sticked into capable read-write operation; The RC632 integrated circuit (IC) chip is sent data exchange request by IRQ to the 89C51 integrated circuit (IC) chip, and data is delivered to the P0 mouth of 89C51 integrated circuit (IC) chip through the D mouth; Judging radio-frequency card when MCU control circuit module 1 is effectively, and data content handles storage to data when satisfying condition, and by radio-frequency card read/write circuit module 2 data processed is write back radio-frequency card; The RXD of 89C51 integrated circuit (IC) chip and TXD are serial i/o ports, be connected to the Rxd and the Txd of standard integrated circuit modules 51TFDS4500 chip, the TFDS4500 chip has infrared ray and sends and receiving unit, can realize exchanges data with exterior I RDA data acquisition unit 6. adopt single power supply Vcc, direct current+5V. in the utility model
The foregoing description is to explanation of the present utility model, is not to qualification of the present utility model, any circuit after the utility model simple transformation is all belonged to protection domain of the present utility model.
Claims (9)
1. radio-frequency card read-write equipment, comprise MCU control circuit module (1), radio-frequency card read/write circuit module (2), antenna (3) and power supply (4), the control output end of MCU control circuit module (1) is connected in the input end of radio-frequency card read/write circuit module (2), the address data bus of MCU control circuit module (1) is connected with the address data bus of radio-frequency card read/write circuit module (2), the signal wire of radio-frequency card read/write circuit module (2) links to each other with antenna (3), described MCU control circuit module (1) all is connected with power supply (4) with radio-frequency card read/write circuit module (2), it is characterized in that: also comprise IRDA series interface part (5), the serial port of MCU control circuit module (1) is connected with the signal of communication port of IRDA series interface part (5).
2. a kind of radio-frequency card read-write equipment according to claim 1 is characterized in that: described MCU control circuit module (1) comprises MCU microprocessor (11) and the first auxiliary oscillator circuit module (12) that is connected with MCU microprocessor (11).
3. a kind of radio-frequency card read-write equipment according to claim 2 is characterized in that: described MCU microprocessor (11) is the 89C51 integrated circuit (IC) chip.
4. a kind of radio-frequency card read-write equipment according to claim 1 is characterized in that: described radio-frequency card read/write circuit module (2) comprises intelligent read integrated circuit modules (21) and second auxiliary oscillator circuit (22) module that is connected with intelligent read integrated circuit modules (21).
5. a kind of radio-frequency card read-write equipment according to claim 4 is characterized in that: described intelligent read integrated circuit modules (21) is the RC632 integrated circuit (IC) chip.
6. a kind of radio-frequency card read-write equipment according to claim 5 is characterized in that: described RC632 integrated circuit (IC) chip is carried out ISO/IEC 14443A, ISO/IEC 14443B and 15,693 three kinds of international standards of ISO/IEC.
7. a kind of radio-frequency card read-write equipment according to claim 1 is characterized in that: described IRDA series interface part (5) is made of standard integrated circuit modules (51).
8. a kind of radio-frequency card read-write equipment according to claim 7 is characterized in that: described standard integrated circuit modules (51) is the TFDS4500 chip.
9. a kind of radio-frequency card read-write equipment according to claim 7 is characterized in that: be connected with the IRDA data acquisition unit (6) that carries out wireless data exchange with MCU control circuit module (1) on the described IRDA series interface part (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201238721U CN201465148U (en) | 2009-07-06 | 2009-07-06 | Radio-frequency card read/write device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201238721U CN201465148U (en) | 2009-07-06 | 2009-07-06 | Radio-frequency card read/write device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201465148U true CN201465148U (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201238721U Expired - Fee Related CN201465148U (en) | 2009-07-06 | 2009-07-06 | Radio-frequency card read/write device |
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| Country | Link |
|---|---|
| CN (1) | CN201465148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611201A (en) * | 2015-10-27 | 2017-05-03 | 宁夏琪凯节能设备有限公司 | Energy-saving read-write equipment |
-
2009
- 2009-07-06 CN CN2009201238721U patent/CN201465148U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611201A (en) * | 2015-10-27 | 2017-05-03 | 宁夏琪凯节能设备有限公司 | Energy-saving read-write equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120706 |