CN2359750Y

CN2359750Y - Bidirectional remote controlled IC card controller

Info

Publication number: CN2359750Y
Application number: CN 99234326
Authority: CN
Inventors: 李洋; 唐宁
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-01-15
Filing date: 1999-01-15
Publication date: 2000-01-19
Anticipated expiration: 2009-01-15

Abstract

The utility model relates to a bidirectional remote controlled IC card controller in the field of electron. The utility model comprises a microcontroller, a transmitting circuit, a receiving circuit, an IC card interface circuit and a display circuit, wherein, the microcontroller is respectively connected with the transmitting circuit, the receiving circuit, a display control circuit, a data memory, a power supply and the IC card interface circuit through I/O ports. The utility model can improve an original IC card metering instrument to lead the metering instrument to be completely sealed, which leads the work of the circuits to be safer. Simultaneously, the requirements for the installing position and the environment are reduced, the data transfer for a long distance can be realized, and a user can conveniently read an IC card, can conveniently inquire the IC card and can conveniently operate the IC card.

Description

Bidirectional remote control IC-card controller

The utility model belongs to electronic technology field, further relates to a kind of bidirectional remote control IC-card controller, applicable to the transformation of various IC-card measuring instrument data transfer modes.

Traditional IC-card measuring instrument, as IC-card pre-payment type water meter, ammeter, gas meter, the reading in of data in its IC-card all needs and is fixed on IC-card seat on water meter, ammeter, the gas meter and carries out actual contact and just can finish.This has caused a series of problems in the middle of reality is used.If there is certain altitude the installation site of measuring instrument apart from ground, make troubles then for people's plug-in card operation; If measuring instrument is installed in humidity, place that oil smoke is big, the hard contact in the IC-card seat can be corroded, oxidation, influence the reliability that read-write card is operated; In addition, if measuring instrument is installed in place higher or that light is darker, continuous data on the table and information are difficult to identification, problems affect IC-card like that applying on these measuring instruments.

The purpose of this utility model is in order to overcome the deficiency of above-mentioned technology, and providing a kind of can be used with existing IC-card pre-payment type counter-controller, realizes the IC-card controller that the bidirectional remote control of such instrument is transformed.

The utility model comprises microcontroller, emission and receiving circuit, IC-card interface circuit, display control circuit.Micro controller I/O port links to each other with radiating circuit, connect the infraluminescence pipe through driving circuit, the output terminal of the infrared receiving tube in micro controller I/O port and the receiving circuit links to each other, micro controller I/O port links to each other with the IC-card interface circuit, link to each other with IC-card seat power supply through switch triode, the data of IC-card seat and control line connect micro controller I/O port respectively, micro controller I/O port connects display module in the display control circuit through driving circuit, function button connects micro controller I/O port respectively, and micro controller I/O port links to each other with the Data Control line of data memory.

Below in conjunction with accompanying drawing embodiment of the present utility model is further described:

Fig. 1 is an integrated circuit block scheme of the present utility model.

Fig. 2 is an electrical schematic diagram of the present utility model.

As shown in Figure 1, the utility model is made up of microcontroller 1, power supply 2, display control circuit 3, receiving circuit 4, IC-card interface circuit 5, radiating circuit 6, data memory 7.Microcontroller 1 links to each other with power supply 2 by power lead.Microcontroller 1 links to each other with display control circuit 3 by the I/O port, realizes data presentation, and receives the button control signal.Microcontroller 1 links to each other with receiving circuit 4, radiating circuit 6 by the I/O port, is used for the data of data memory 7 are sent to the outside, and receives the data of outside loopback.Microcontroller 1 links to each other with IC-card interface circuit 5 by the I/O port, can be used for reading the data message in user's IC-card.Microcontroller 1 links to each other with data memory 7 by the I/O port, is used for the data in user's IC-card are kept at data memory 7, or preserves the data message of outside loopback.

As shown in Figure 2, microcontroller 1 of the present utility model adopts the microcontroller 89C51 of inner tape program memory.Power supply 2 can adopt dual mode, and a kind of is direct employing+5 volt power supplys, but for saving the space, also can adopt two joint dry cell power supplies (+3 volts), with the power supply booster circuit 3 volts of voltages is raised to 5 volts, guarantees the integrated circuit operate as normal.Microcontroller 1 links to each other with power supply 2 by power pins VCC, GND, T1 in the power supply booster circuit of power supply 2 adopts three end supply convertor STD332, inductance L 1 is connected across between the inductance input pin LX of anode and supply convertor T1, diode D1 is connected across between the inductance input pin LX and output pin OUT of supply convertor T1, and the output pin OUT of supply convertor T1 links to each other with the power pins VCC of microcontroller 1.In display control circuit 3, display module is eight hop count sign indicating number displays of the group of four figures at least, also can adopt at least four number or lattice lcd display.Four the eight segment encode display models that present embodiment adopts are E40561, the emitter that PNP9015 drives triode T4, T5, T6, T7 links to each other with power supply VCC, their collector links to each other with C1, C2, C3, the C4 pin of E40561 respectively, be used for driving lighting and show the position, I/O port and PNP 9015 that current-limiting resistance R12, R13, R14, R15 are connected across microcontroller 1 respectively drive between the base stage of triode T4, T5, T6, T7, are controlled by I/O mouth demand pairs sign indicating number display by microcontroller 1.Current-limiting resistance R16, R17, R18, R19, R20, R21, R22, R23 are connected across respectively between A, B, C, D, E, F, G, the DOT pin of the I/O port of microcontroller 1 and nixie display E40561, by microcontroller 1 by I/O mouth line traffic control display field.If adopt at least four number or lattice lcd display, the I/O port of microcontroller 1 can be linked to each other with the control port of LCD.Function button KEY1, KEY2, KEY3 are Card Reader, transmission, query function key, and they link to each other with the I/O port of microcontroller 1 respectively, can select input control signal by the user.Current-limiting resistance R2 is connected across between power supply VCC and LED 1 positive pole, and the negative pole of LED 1 links to each other with the I/O port of microcontroller 1, can indicate the duty of telepilot.In receiving circuit 4, the OUT pin of infrared receiving tube IR01 links to each other with the I/O port of microcontroller 1, current-limiting resistance R1 is connected across between the OUT pin and power supply VCC of infrared receiving tube IR01, and current-limiting resistance R24 is connected across between the VCC pin and power supply VCC of infrared receiving tube IR01.In IC-card interface circuit 5, the IC-card seat adopts 2524 decks, 2524 switch port SW1, reseting port RST, clock port CLK, input/output end port I/O, programming port PGM links to each other with the I/O port of microcontroller 1 respectively, 2524 power pins VCC links to each other with the collector of PNP 9015 switch triode T3, current-limiting resistance R8, R9, R10, R11, R5 is connected across the collector of PNP 9015 switch triode T3 and 2524 I/O end I/O respectively, clock end CLK, fuse end FUS, reset terminal RST, between the programming end PGM, current-limiting resistance R7 is connected across between the I/O port of the base stage of T3 and microcontroller 1, and pull-up resistor R6 is connected across between the I/O port of power supply VCC and microcontroller 1.In radiating circuit 6, current-limiting resistance R3 is connected across PNP 8550 and drives between the I/O port of the base stage of triode T2 and microcontroller 1, current-limiting resistance R4 is connected across between the positive pole of the collector that drives triode T2 and infrared transmitting tube LED2, and the negative pole of infrared transmitting tube LED2 links to each other with power supply GND.In data memory 7; data memory 7 adopts electric erasable memory EEPROM 24LC01 (or EEPROM 24LC02); data terminal SDA, the clock end SCL of memory 24LC01 links to each other with the I/O port of microcontroller 1; write-protect end WP, the power end VCC of memory 24LC01 link to each other with power supply VCC, the data terminal A0 of 24LC01, data terminal A1, data terminal A2, power end VSS pin ground connection.

The utility model needs 5 volts of power works, but is the minimizing volume, No. 5 dry cell power supplies of employing two joints (+3V), after powering on, power supply 2 lies prostrate 3 volts of boost in voltage to 5, keeps the operate as normal of integrated circuit.Microcontroller 1 is behind electrification reset, and at first inquiry has or not push button signalling, if do not have, then is in the wait key-press status.The utility model has three function operating key KEY1, KEY2, KEY3, is respectively Card Reader, transmission, query function key.When IC-card inserts in the IC-card seat of telepilot, after microcontroller 1 receives the control signal of Card Reader key KEY1, the data in user's IC-card are read be kept in the memory 7, and show by display control circuit 3.If the infrared emission circuit 6 of telepilot is aimed at the measuring instrument that will control, control by emission key KEY2, microcontroller 1 can outwards send the user data in the memory 7 by infrared emission circuit 6, and pass through the check information that infrared receiving circuit 4 receives the measuring instrument loopbacks, guarantee to send the accuracy of data.If microcontroller 1 inquires the control signal of query key KEY3, then send request signal to controlled measuring instrument by radiating circuit 6, and " user can with residue numerical value " of controlled measuring instrument loopback received, be kept in the memory 7, and show by 3 couples of users of display circuit.

The utility model volume is little, adopts two batteries power supplies (+3 volts), by booster circuit voltage is raised to 5 volts, is easy to carry, and is easy to keeping.The utility model can realize that longer-distance data transmit, and can greatly facilitate user's IC-card Card Reader and query manipulation.Behind utilization the utility model, can transform original IC-card measuring instrument, realize the sealing fully of measuring instrument, make its circuit working safety and reliability, simultaneously installation site and environment requirement are reduced, this has good facilitation to applying of IC-card measuring instrument.

Claims

1. bidirectional remote control IC-card controller, it comprises microcontroller, radiating circuit, receiving circuit, the IC-card interface circuit, display control circuit and power supply, it is characterized in that: described micro controller I/O port links to each other with radiating circuit, connect the infraluminescence pipe through driving circuit, the output terminal of the infrared receiving tube in micro controller I/O port and the receiving circuit links to each other, micro controller I/O port connects the IC-card interface circuit, link to each other with IC-card seat power supply through switch triode, the data of IC-card seat and control line connect micro controller I/O port respectively, micro controller I/O end connects display module in the display control circuit through driving circuit, function button connects micro controller I/O port respectively, and micro controller I/O port links to each other with the Data Control line of data memory.

2. bidirectional remote control IC-card controller according to claim 1 is characterized in that: described microcontroller is the microcontroller chip that has memory under program in the sheet.

3. bidirectional remote control IC-card controller according to claim 1 is characterized in that: the display module in the described display control circuit is eight hop count sign indicating number displays of the group of four figures at least.

4. bidirectional remote control IC-card controller according to claim 1 is characterized in that: the display module in the described display control circuit is at least four the number or the LCD of dot matrix.

5. bidirectional remote control IC-card controller according to claim 1 is characterized in that: described data memory is the EEPROM data memory of electric erasable.

6. bidirectional remote control IC-card controller according to claim 1, it is characterized in that: described power supply adopts the power supply booster circuit, inductance is connected across between the inductance input pin of anode and supply convertor, diode is connected across between the inductance input pin and output pin of supply convertor, and the output pin of supply convertor links to each other with the power pins of microcontroller.