CN2430735Y - Doube interface intelligent card read/write device - Google Patents
Doube interface intelligent card read/write device Download PDFInfo
- Publication number
- CN2430735Y CN2430735Y CN 00236271 CN00236271U CN2430735Y CN 2430735 Y CN2430735 Y CN 2430735Y CN 00236271 CN00236271 CN 00236271 CN 00236271 U CN00236271 U CN 00236271U CN 2430735 Y CN2430735 Y CN 2430735Y
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- chip microcomputer
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- smart card
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Abstract
The utility model relates to a double interface intelligent card read / write device, which comprises a single chip microcomputer, an IC card socket, a modem, an indicating circuit and an antenna. The single chip microcomputer is respectively connected with a data foot and a reset foot of the IC card socket, a data address port, a reading terminal, a writing terminal and an address latch terminal of the modem; an analog signal output terminal and an analog signal input terminal of the modem are connected with the antenna through an antenna driving feedback circuit; the input terminal of the indicating circuit is connected with the single chip microcomputer. The utility model combines functions of two IC cards with different forms into integration; the utility model not only can use a contact type IC card, and can also use a contactless type IC card.
Description
The utility model relates to a kind of double-interface smart card read write line, is applicable to bus carrier aircraft, curb parking Parking Meter, IC-card gas meter, flow meter, IC-card water meter, IC-card cold water meter, IC-card heating power table etc.
At present, on the market the IC-card read write line all be single interface, or Contact Type Ic Card read write line or noncontact IC card read/write device, the Contact Type Ic Card read write line is made of single-chip microcomputer and IC-card seat, and the non-contact IC card read write line then is made of single-chip microcomputer, modulator-demodular unit, antenna.For example: the Contact Type Ic Card that uses in the ammeter, the bus carrier aircraft is used non-contact IC card.Be difficult to the two is combined, make and use same IC-card just can satisfy the demand of various use occasions.Because the use of Contact Type Ic Card and non-contact IC card respectively has relative merits in different applications, market also is difficult to these two kinds of IC-cards are made unique selection.
In view of above-mentioned, the purpose of this utility model is to propose a kind of double-interface IC card read write line that not only can use Contact Type Ic Card but also can use non-contact IC card.
For reaching this purpose, the utility model by the following technical solutions:
A kind of double-interface smart card read write line comprises single-chip microcomputer and smart card deck, and two data terminals of single-chip microcomputer are connected with resetting pin with the data pin of smart card deck respectively, it is characterized in that it also comprises modulator-demodular unit, antenna, indicating circuit, wherein:
A data port of single-chip microcomputer connects the data address mouth of modulator-demodular unit, and the reading of single-chip microcomputer held, write end, address latch end and connect reading end, writing end, address latch end of modulator-demodular unit respectively;
The analog signal output of modulator-demodular unit and input end of analog signal connect antenna through antenna drive feedback circuit; The input of indicating circuit connects a data terminal of single-chip microcomputer.
In implementing measure of the present utility model:
Two data terminals of described single-chip microcomputer connect the secure access module, and these two data terminals connect the data terminal and the reset terminal of secure access module respectively.
Described indicating circuit is one of pilot lamp, hummer.
The serial port of described single-chip microcomputer is connected to serial line interface.
A data port of described single-chip microcomputer is connected to data-carrier store.
When contact intelligent card inserted the smart card deck, single-chip microcomputer was just finished the transmission and the data write of order by this deck and contact intelligent card.When contact type intelligent card when the antenna, single-chip microcomputer sends order and data to modulator-demodular unit, give contact type intelligent card by antenna transmission after modulating, the data that contact type intelligent card sends are delivered to modulator-demodular unit by antenna equally, are received by single-chip microcomputer after demodulation.To the operating result of smart card, single-chip microcomputer provides indicator signal by indicating circuit.
The utlity model has following advantage:
1. because smart card deck and modulator-demodular unit are housed, so can be in conjunction with the operation of Contact Type Ic Card and the operating feature of non-contact IC card, make these two kinds multi-form IC-card functions become one, it had both supported to meet the Contact Type Ic Card of ISO-7816, and also support meets the non-contact IC card of Type A agreement or the Type B agreement of ISO-14443;
2. because the secure access module is housed, therefore can carry out encryption and decryption, improve safety of data transmission data;
3. owing to serial line interface is housed, so can communicate by letter with host computer.
Below in conjunction with drawings and Examples the utility model is elaborated.
Fig. 1 is the functional-block diagram of double-interface smart card read write line;
Fig. 2 is the circuit diagram of double-interface smart card read write line.
See also Fig. 1: the utility model comprises single-chip microcomputer 1, power supply 2, smart card (IC-card) deck 6, modulator-demodular unit 7, indicating circuit 8, antenna 9.Two data terminals of single-chip microcomputer 1 are connected with resetting pin with the data pin of smart card deck 6 respectively, a data port of single-chip microcomputer 1 connects the data address mouth of modulator-demodular unit 7, and the reading of single-chip microcomputer 1 held, write end, address latch end and connect reading end, writing end, address latch end of modulator-demodular unit 7 respectively; The analog signal output of modulator-demodular unit 7 and input end of analog signal connect antenna 9 through antenna drive feedback circuit, and the input of indicating circuit 8 connects a data terminal of single-chip microcomputer 1.Foregoing circuit can be cased.
When contact intelligent card 10 inserted smart card deck 6, single-chip microcomputer 1 detected the insertion of smart card 10 automatically, and single-chip microcomputer 1 is finished the transmission and the data write of order by IC-card seat 6 and smart card 10 according to the communication protocol of ISO7816-3.
When contact type intelligent card 10 during near the induction field of antennas 9, the type of single-chip microcomputer 1 automatic identification intelligent card 10 meets the Type A card or the Type B card of ISO14443 agreement, single-chip microcomputer 1 sends order and data according to the Type A or the Type B agreement of ISO14443 agreement to modulator-demodular unit 7 respectively according to the type of smart card 10, modulator-demodular unit 7 is finished the modulation function of data, and sends to smart card 10 by antenna 9; The data that smart card 10 sends out receive by antenna 9 equally, after modulator-demodular unit 7 demodulation, are received by single-chip microcomputer 1.
To the operating result of smart card, single-chip microcomputer 1 provides indicator signal by indicating circuit 8.
Fig. 2 is the circuit diagram of double-interface smart card read write line, and among the figure: U1 is that single-chip microcomputer, U2 are that non-contact IC card dedicated modem, U3 are the Contact Type Ic Card deck.Wherein:
Two data terminal P11, the P10 of single-chip microcomputer U1 are connected with resetting pin RST with the data pin SIO of IC-card deck U3 respectively, and the power end of U3 and clock end are connected to plug-in card respectively and detect power on circuit and clock circuit generator (not shown).After single-chip microcomputer U1 detects IC-card and inserts deck U3, provide power supply VIC to IC-card automatically, offer the clock signal clk of IC-card work simultaneously and data terminal P11 set high level, and IC-card is done reset processing by data terminal P10.Order and data that single-chip microcomputer U1 sends IC-card and receive data from IC-card and all finish by the P11 line.
U2 is a read-write chip of supporting Type A and Type B agreement, the P0 mouth of single-chip microcomputer U1 is connected with the data address mouth AD0-AD7 of U2, the reading of single-chip microcomputer U1 hold RD, write end WR, address latch end ALE is connected with RD, WR, the ALE of U2 respectively, the analog signal output TRF of U2 is connected with antenna after the drive feedback circuit amplifies, and antenna meets the input end of analog signal RXD of U2 through the drive feedback circuit.When single-chip microcomputer U1 when IC-card sends order and data, its WR signal wire is effective, data on the data line are effective simultaneously, the address of U2 is latched automatically by the address signal of ale signal from the output of P0 port, these data are modulated into analog quantity through U2, give the IC-card sheet by antenna transmission after the drive feedback circuit amplifies; From the data that the IC-card sheet is sent back to, also be after the drive feedback circuit amplifies, to feed back to U2 by antenna, be demodulated to digital signal by U2, it is effective that at this moment single-chip microcomputer U1 makes its RD signal, and data appear on the data line, and single-chip microcomputer U1 just can readback data.
The drive feedback circuit of the peripheral circuit of above-mentioned Contact Type Ic Card deck U3, non-contact IC card dedicated modem U2 is known technology, so repeat no more.
The data termination of single-chip microcomputer U1 has the indicating circuit (not shown), and this indicating circuit can and be formed by the pilot lamp of this transistor driving or hummer by a transistor.To the operating result of smart card, single-chip microcomputer U1 gives bright dipping or sound alarm signal by this indicating circuit, gives user's prompting operation result's state, and as operation correct, mistake, card pipes off etc.
In other embodiment of the present utility model:
In order to improve safety of data transmission, comprise that also model is the secure access module U4 (being label among Fig. 1) of MOCS01, two the data terminal P14 of single-chip microcomputer U1 and P13 meet data terminal SIO and the reset terminal RST of U4 respectively.The clock end CLK of U4 connects clock circuit.U4 carries out in inside modules automatically to the encryption and decryption of data, and U4 encrypts or deciphers these data after receiving the data that the P14 end of single-chip microcomputer U1 sends here by its SIO termination, and then the data after will handling are held from its SIO and are recycled to single-chip microcomputer U1.Like this, single-chip microcomputer U1 could transmit after must encrypting the advanced row of data by secure access module U4 by IC-card seat U3 or by the data that antenna 9 sends to smart card 10, otherwise single-chip microcomputer U1 also need elder generation be decrypted by secure access module U4 from the enciphered data that smart card 10 receives.
The capacity limit that is limited to data-carrier store in the single-chip microcomputer can connect data-carrier store 5 in a data port of single-chip microcomputer.Consider to communicate by letter, can connect RS232 serial line interface U5 (being label among Fig. 1) at the serial port of single-chip microcomputer with host computer.The intelligent card data that single-chip microcomputer receives can be saved in the storer 5 of read write line, also can send host computer or terminal to by RS232 serial line interface 4.
In Fig. 2, the socket that is positioned at the left end middle part is used to connect host computer or terminal, and the socket that is positioned at the upper right corner is used for being connected with antenna.
Claims (5)
1. a double-interface smart card read write line comprises single-chip microcomputer and smart card deck, and two data terminals of single-chip microcomputer are connected with resetting pin with the data pin of smart card deck respectively, it is characterized in that:
Also comprise modulator-demodular unit, antenna, indicating circuit, wherein:
A data port of single-chip microcomputer connects the modem data address mouth, and the reading of single-chip microcomputer held, write end, address latch end and connect reading end, writing end, address latch end of modulator-demodular unit respectively;
The analog signal output of modulator-demodular unit and input end of analog signal connect antenna through antenna drive feedback circuit;
The input of indicating circuit connects a data terminal of single-chip microcomputer.
2. double-interface smart card read write line as claimed in claim 1 is characterized in that: two data terminals of described single-chip microcomputer connect the secure access module, and these two data terminals connect the data terminal and the reset terminal of secure access module respectively.
3. double-interface smart card read write line as claimed in claim 1 is characterized in that: described indicating circuit is one of pilot lamp, hummer.
4. double-interface smart card read write line as claimed in claim 1 is characterized in that: the serial port of described single-chip microcomputer is connected to serial line interface.
5. double-interface smart card read write line as claimed in claim 1 is characterized in that: a data port of described single-chip microcomputer is connected to data-carrier store.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00236271 CN2430735Y (en) | 2000-06-07 | 2000-06-07 | Doube interface intelligent card read/write device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00236271 CN2430735Y (en) | 2000-06-07 | 2000-06-07 | Doube interface intelligent card read/write device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2430735Y true CN2430735Y (en) | 2001-05-16 |
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ID=33597837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00236271 Expired - Lifetime CN2430735Y (en) | 2000-06-07 | 2000-06-07 | Doube interface intelligent card read/write device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2430735Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103577858A (en) * | 2013-11-28 | 2014-02-12 | 四川海力智能科技有限公司 | Compatible IC (integrated circuit) card reader-writer |
| CN104463314A (en) * | 2014-12-05 | 2015-03-25 | 大唐微电子技术有限公司 | Smart card issuing method and system |
| CN105678850A (en) * | 2016-03-31 | 2016-06-15 | 上海捷赴达电子科技有限公司 | On board unit (OBU) device |
-
2000
- 2000-06-07 CN CN 00236271 patent/CN2430735Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103577858A (en) * | 2013-11-28 | 2014-02-12 | 四川海力智能科技有限公司 | Compatible IC (integrated circuit) card reader-writer |
| CN104463314A (en) * | 2014-12-05 | 2015-03-25 | 大唐微电子技术有限公司 | Smart card issuing method and system |
| CN104463314B (en) * | 2014-12-05 | 2018-03-02 | 大唐微电子技术有限公司 | A kind of smart card issuance method and system |
| CN105678850A (en) * | 2016-03-31 | 2016-06-15 | 上海捷赴达电子科技有限公司 | On board unit (OBU) device |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20010516 |