CN201465131U - Multi-standard radio frequency card read-write device capable of updating program in system - Google Patents
Multi-standard radio frequency card read-write device capable of updating program in system Download PDFInfo
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- CN201465131U CN201465131U CN2009201197577U CN200920119757U CN201465131U CN 201465131 U CN201465131 U CN 201465131U CN 2009201197577 U CN2009201197577 U CN 2009201197577U CN 200920119757 U CN200920119757 U CN 200920119757U CN 201465131 U CN201465131 U CN 201465131U
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- write
- frequency card
- serial interface
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Abstract
The utility model discloses a multi-standard radio frequency card read-write device capable of updating program in a system, which comprises an MCU control circuit, a radio frequency card read-write circuit, an antenna and a power supply. The control output end of the MCU control circuit is connected with the input end of the radio frequency card read-write circuit. The address data bus of the MCU control circuit is connected with the address data bus of the radio frequency card read-write circuit. The MCU control circuit and the radio frequency card read-write circuit are both connected with the power supply. The signal wire of the radio frequency card read-write circuit is connected with the antenna. The multi-standard radio frequency card read-write device also comprises a multiplexer, an RS232 serial interface circuit and a RS485 serial interface circuit. The serial interface of the MCU control circuit is connected with the multiplexer. The communication signal ports of the RS232 serial interface circuit and the RS485 serial interface circuit are connected with the multiplexer. The multi-standard radio frequency card read-write device is provided with two standard serial interfaces, not only can realize network management, but also can realize program updating in the system.
Description
[technical field]
The utility model relates to the radio-frequency card read-write equipment, relate in particular to a kind of can be at many standard radio frequencies card read-write equipment of system update program.
[technical background]
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.For this reason, it is 200620140958.1 that the applicant has proposed the patent No. on Dec 11st, 2006, name is called a kind of patented claim of radio-frequency card read-write equipment of the RS485 of having interface, and on 01 09th, 2008 Granted publication, this contactless smart card read-write equipment can be discerned a plurality of international standards such as ISO/IEC 14443A, ISO/IEC 14443B or ISO/IEC 15693, and is compatible good, highly versatile, possess the ability with the external circuit direct communication, can realize network management.
Though the contactless smart card read-write equipment after improving through the applicant possesses the recognition function of multiple international standard radio-frequency card, possess the ability with the external circuit direct communication, can realize network management; But this device does not have general RS232 standard serial interface, can not utilize the ISP technology that device is carried out program at system update.Radio-frequency card also is known as contactless smart card, radio-frequency (RF) IC card or intelligent RF card in this manual.
So, how to develop a kind of a plurality of standard serial interfaces that have, can either realize network management, the program that can realize again becomes the important topic of those skilled in the art's research at the radio-frequency card read-write equipment of system update.
[summary of the invention]
The purpose of this utility model is exactly in order to solve problems of the prior art, proposes a kind ofly can either realize network management at many standard radio frequencies card read-write equipment of system update program, and the program that can realize again is at system update.
For achieving the above object, the utility model patent proposed a kind of can be at many standard radio frequencies card read-write equipment of system update program, comprise the MCU control circuit, the radio-frequency card read/write circuit, antenna and power supply, the control output end of MCU control circuit is connected to the input end of radio-frequency card read/write circuit, the address data bus of MCU control circuit is connected with the address data bus of radio-frequency card read/write circuit, described MCU control circuit all is connected with power supply with the radio-frequency card read/write circuit, the signal wire of radio-frequency card read/write circuit links to each other with antenna, also comprise MUX, the RS232 serial interface circuit, the RS485 serial interface circuit, the serial port of MCU control circuit is connected with MUX, and the signal of communication port of RS232 serial interface circuit and RS485 serial interface circuit is connected with MUX.
As preferably, described MCU control circuit comprises microcontroller MCU and auxiliary oscillating circuit, and described auxiliary oscillating circuit is connected with microcontroller MCU.
As preferably, described microcontroller MCU is the 89C51 integrated circuit (IC) chip.
As preferably, described radio-frequency card read/write circuit comprises the intelligent read integrated circuit and the second auxiliary oscillating circuit, and described intelligent read integrated circuit and second assists oscillating circuit to be connected.
As preferably, described intelligent read integrated circuit 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.
As preferably, described RS232 serial interface circuit and RS485 serial interface circuit are made of integrated circuit modules or discrete component circuit.
As preferably, described RS232 serial interface circuit adopts the MAX232 integrated circuit (IC) chip.
As preferably, described RS485 serial interface circuit adopts 75176 integrated circuit (IC) chip.
The beneficial effect of the utility model patent: the utility model is based on microcontroller technology, the identification of multinational border standard non-contact intelligent IC-card, standard RS232 and RS485 serial interface technologies, realize control, the operation of radio-frequency card read/write circuit by the program in the microcontroller MCU chip, analyze intelligent card data content, checking smart card user's validity, valid data are handled, are stored and export.The radio-frequency card read/write circuit carries out exchanges data, judges that the physics validity and the MCU of non-contact card carry out data transmission and carry out reading and writing data under the control of MCU by antenna and radio-frequency card.Microcontroller MCU communicates by letter with external circuit with the RS485 serial interface circuit by RS232, and realizes the in-system programming of network management control and device program by communicating by letter between host computer and Duo Tai read-write equipment.The utlity model has two standard serial interfaces, be easy to networking, carry out deep level development and product up-gradation, for deep level developments such as the integration that realizes the radio-frequency card application system and networked control and management are laid a good foundation.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is that the utility model is a kind of can be at the circuit block diagram of many standard radio frequencies card read-write equipment of system update program;
Fig. 2 is that the utility model is a kind of can be at the circuit theory diagrams of many standard radio frequencies card read-write equipment of system update program.
[embodiment]
Consult Fig. 1, can be at many standard radio frequencies card read-write equipment of system update program, comprise MCU control circuit 1, radio-frequency card read/write circuit 2, antenna 3 and power supply 4, the control output end of MCU control circuit 1 is connected in the input end of radio-frequency card read/write circuit 2, the address data bus of MCU control circuit 1 is connected with the address data bus of radio-frequency card read/write circuit 2, described MCU control circuit 1 all is connected with power supply 4 with radio-frequency card read/write circuit 2, the signal wire of radio-frequency card read/write circuit 2 links to each other with antenna 3, also comprise MUX 5, RS232 serial interface circuit 6 and RS485 serial interface circuit 7, the serial port of MCU control circuit 1 is connected with MUX 5, and the signal of communication port of RS232 serial interface circuit 6 and RS485 serial interface circuit 7 is connected with MUX 5.Radio-frequency card read/write circuit 2 carries out exchanges data, judges that the physics validity and the MCU control circuit 1 of non-contact card carry out data transmission and carry out reading and writing data under the control of MCU control circuit 1 by antenna 3 and radio-frequency card.Be provided with program in the MCU chip of MCU control circuit 1, radio-frequency card read/write circuit 2 controlled, 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 1 is communicated by letter with external circuit with RS485 serial interface circuit 7 by RS232, and controls and in-system programming with the realization network management of communicating by letter between the Duo Tai read-write equipment by host computer.
Consult Fig. 2, described MCU control circuit 1 comprises microcontroller MCU and auxiliary oscillator circuit, described auxiliary oscillator circuit is connected with microcontroller MCU. and auxiliary oscillator circuit is preferably by a crystal oscillator, two filter capacitors and a resistance constitute, producing oscillator signal by auxiliary oscillator circuit and make microcontroller MCU operate as normal. described microcontroller MCU is the 89C51 integrated circuit (IC) chip. described radio-frequency card read/write circuit 2 comprises the intelligent read integrated circuit and second auxiliary oscillator circuit, described intelligent read integrated circuit is connected with second auxiliary oscillator circuit. and second auxiliary oscillator circuit is preferably by a crystal oscillator, two filter capacitors and a resistance constitute, and produce oscillator signal by second auxiliary oscillator circuit and make intelligent read integrated circuit operate as normal. and described intelligent read integrated circuit 21 is the RC632 integrated circuit (IC) chip. and described RC632 integrated circuit (IC) chip is carried out ISO/IEC 14443A, 15,693 three kinds of international standards of ISO/IEC 14443B and ISO/IEC.Described MUX 5, RS232 and RS485 serial interface circuit 7 are made of standard integrated circuit modules or discrete component circuit.Described MUX 5 adopts the 74LS153 integrated circuit (IC) chip.Described RS232 serial interface circuit 6 adopts the MAX232 integrated circuit (IC) chip.Described RS485 serial interface circuit 7 adopts 75176 integrated circuit (IC) chip.
The 89C51 chip is controlled the core integrated circuit RC632 operation of radio-frequency card read/write circuit 2 by sheet selected control system P1.0, read-write control W and R signal; RC632 in the radio-frequency card read/write circuit 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; RC632 sends data exchange request by IRQ to 89C51, and data is delivered to the P0 mouth of 89C51 through the D mouth; Judging radio-frequency card when MCU control circuit 1 is effectively, and data content handles storage to data when satisfying condition, and by radio-frequency card read/write circuit 2 data processed is write back radio-frequency card; The RXD of 89C51 and TXD are serial i/o ports, be connected to Za and the Zb of MUX 5 integrated circuit modules 74LS153, the I01a of 74LS153, I01b, I02a, I02b connect R, the D of standard RS485 integrated circuit modules 75176 and R1OUT, the T1IN of standard RS232 integrated circuit modules MAX232 respectively; The P2.0-P2.3 of 89C51 connects S0, S1, Ea, the Eb of 74LS153 respectively, and being used for selecting its serial i/o port and RS232 still is that RS485 communicates by letter; The R1IN of 75176 B-, A+ and 74LS153, T1OUT are connected with external circuit, and realization MCU control circuit 1 is communicated by letter with host computer, other read-write equipments and external network.Adopt single power supply 4Vcc, 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 scheme after the utility model simple transformation is all belonged to protection domain of the present utility model.
Claims (9)
- One kind can be at many standard radio frequencies card read-write equipment of system update program, comprise the MCU control circuit, the radio-frequency card read/write circuit, antenna and power supply, the control output end of MCU control circuit is connected to the input end of radio-frequency card read/write circuit, the address data bus of MCU control circuit is connected with the address data bus of radio-frequency card read/write circuit, described MCU control circuit all is connected with power supply with the radio-frequency card read/write circuit, the signal wire of radio-frequency card read/write circuit links to each other with antenna, it is characterized in that: also comprise MUX, the RS232 serial interface circuit, the RS485 serial interface circuit, the serial port of MCU control circuit is connected with MUX, and the signal of communication port of RS232 serial interface circuit and RS485 serial interface circuit is connected with MUX.
- 2. as claimed in claim 1 a kind of can be at many standard radio frequencies card read-write equipment of system update program, it is characterized in that: described MCU control circuit comprises microcontroller MCU and auxiliary oscillating circuit, described auxiliary oscillating circuit is connected with microcontroller MCU.
- 3. as claimed in claim 2 a kind of can be at many standard radio frequencies card read-write equipment of system update program, it is characterized in that: described microcontroller MCU is the 89C51 integrated circuit (IC) chip.
- 4. as claimed in claim 1 a kind of can be at many standard radio frequencies card read-write equipment of system update program, it is characterized in that: described radio-frequency card read/write circuit comprises the intelligent read integrated circuit and the second auxiliary oscillating circuit, and described intelligent read integrated circuit is connected with the second auxiliary oscillating circuit.
- 5. as claimed in claim 4 a kind of can be at many standard radio frequencies card read-write equipment of system update program, it is characterized in that: described intelligent read integrated circuit is the RC632 integrated circuit (IC) chip.
- 6. a kind of can it is characterized in that at many standard radio frequencies card read-write equipment of system update program as claimed in claim 5: 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.
- 7. as claimed in claim 1 a kind of can be at many standard radio frequencies card read-write equipment of system update program, it is characterized in that: described RS232 serial interface circuit and RS485 serial interface circuit are made of integrated circuit modules or discrete component circuit.
- 8. a kind of can it is characterized in that at many standard radio frequencies card read-write equipment of system update program as claimed in claim 7: described RS232 serial interface circuit adopts the MAX232 integrated circuit (IC) chip.
- 9. as claimed in claim 7 a kind of can be at many standard radio frequencies card read-write equipment of system update program, it is characterized in that: described RS485 serial interface circuit adopts 75176 integrated circuit (IC) chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201197577U CN201465131U (en) | 2009-05-12 | 2009-05-12 | Multi-standard radio frequency card read-write device capable of updating program in system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201197577U CN201465131U (en) | 2009-05-12 | 2009-05-12 | Multi-standard radio frequency card read-write device capable of updating program in system |
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| Publication Number | Publication Date |
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| CN201465131U true CN201465131U (en) | 2010-05-12 |
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| CN2009201197577U Expired - Fee Related CN201465131U (en) | 2009-05-12 | 2009-05-12 | Multi-standard radio frequency card read-write device capable of updating program in system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105701429A (en) * | 2015-12-31 | 2016-06-22 | 宇龙计算机通信科技(深圳)有限公司 | User-defined adaptive method and system for RFID card |
| CN109164982A (en) * | 2018-08-23 | 2019-01-08 | 京东方科技集团股份有限公司 | Data processing circuit, method and data storage device |
-
2009
- 2009-05-12 CN CN2009201197577U patent/CN201465131U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105701429A (en) * | 2015-12-31 | 2016-06-22 | 宇龙计算机通信科技(深圳)有限公司 | User-defined adaptive method and system for RFID card |
| CN105701429B (en) * | 2015-12-31 | 2018-09-14 | 宇龙计算机通信科技(深圳)有限公司 | A kind of self-defined adaptation method and system of RFID radio-frequency cards |
| CN109164982A (en) * | 2018-08-23 | 2019-01-08 | 京东方科技集团股份有限公司 | Data processing circuit, method and data storage device |
| CN109164982B (en) * | 2018-08-23 | 2021-04-02 | 京东方科技集团股份有限公司 | Data processing circuit, data processing method and data storage device |
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| Date | Code | Title | Description |
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| 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: 20110512 |