JPH04217086A - Ic card data transfer system - Google Patents

Abstract

PURPOSE:To offer the security system which can be operated easily with regard to the IC card data transfer system. CONSTITUTION:In an IC card reader provided with a reading part for reading the contents of an IC card, a modulating part for moduling the data of the read IC card by a high frequency, and a first terminal for sending out a modulated signal, and an IC card external apparatus provided with a second terminal for receiving the modulated signal, and a demodulating part for demodulating the modulated signal, they are constituted so that information in the IC card is read by the reading part by connecting between a first terminal of the IC card reader concerned and a second terminal of the IC card external apparatus concerned by a conductor or a semiconductor, modulated by the modulating part and sent to a first terminal, transmitted from a first terminal to a second terminal by the conductor or the semiconductor, demodulated by the demodulating part, and transferred to the IC card external apparatus.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IC card data transfer system used for reading IC cards used in security systems.

0002

[Background Art] Conventionally, in a security system for maintaining safety, only specific people who are allowed to enter a specific prohibited area are given an IC card, and when entering the area, the IC card is used as an IC card. The IC card was read by a card reader, the entry qualification was checked, and only when the contents of the IC card were correct, the door was unlocked and entry was permitted. FIG. 4 is a diagram illustrating a conventional security system using an IC card. In the figure, reference numeral 11 denotes an visitor attempting to enter the prohibited area, 12 an IC card indicating the admission qualification of the visitor 11, 13 an IC card reader for reading the IC card 12, and 14 a door for entering the prohibited area. The operating procedure for entering at this time is as follows. ■ The visitor 11 takes out the IC card 12 in his possession from his pocket or the like. ■ Insert the IC card 12 into the IC card reader 13. ■ The contents of the IC card 12 are checked. ■ When the contents of the IC card 12 are correct, the door 14 is unlocked. ■ Take the IC card 12 from the IC card reader 13. ■ Return the IC card 12 to your pocket, etc.

However, the above procedure is cumbersome for visitors, and there is a need for a security system that is easier to operate. For example, in the above system, ■ The visitor 11 uses the IC card 12 in his possession.
Take it out of your pocket, etc. ■ Insert the IC card 12 into the IC card reader 13. ■ Take the IC card 12 from the IC card reader 13. ■ Return the IC card 12 to your pocket, etc. There is a desire to create a system that is easier to operate by eliminating each step.

0004

[Problems to be Solved by the Invention] The security system described above has a problem in that it is cumbersome to operate. In view of these points, it is an object of the present invention to provide a security system that is easy to operate.

[0005]

[Means for Solving the Problems] The above problems are solved by an IC card data transfer system configured as follows.

FIG. 1 is a diagram showing the principle of the present invention. A reading unit 23 that reads the contents of the IC card 21 and the read IC
a modulation unit 24 that modulates the data of the card 21 at a high frequency;
a first terminal 26 for transmitting a modulated signal;
A C card reader 27, a second terminal 29 for receiving the modulated signal, and a demodulator 2 for demodulating the modulated signal.
In the IC card external device 30 equipped with an IC card reader 8, the IC card The information in the card 21 is read by the reading section 23, modulated by the modulating section 24, and sent to the first terminal 26.
is transmitted to the second terminal 29, demodulated by the demodulator 28, and I
The data is configured to be transferred to the C card external device 30.

[0007]

[Operation] The reading unit 23 reads the information in the IC card 21, the modulating unit 24 modulates the information and sends it to the first terminal 26, and the conductor or semiconductor 31 connects the first terminal 26 to the second terminal 29. By transmitting the signal to and demodulating it in the demodulating section 28,
Transfer the IC card to the external device 30.

[0008]

[Example] While holding the IC card in your pocket,
In order to transfer the information in the C card to the security system, the following idea is used as a basis.

[0009] A transmission path is formed by touching a terminal using a human hand using a weak high frequency (targeting a band of 1 MHz to 100 MHz) to prevent interference.

[0010] The human body is a semiconductor having a resistance value of about 30 to 300 Ω·cm, and can serve as a signal transmission path. FIG. 2 is a configuration diagram of an embodiment of the present invention. In the figure, 21 is an IC card that proves the owner's qualifications, 23 is a reading unit that reads the IC card, 24 is a first modulation unit that modulates the read data of the IC card with high frequency, and 26 is for transmitting and receiving signals with the outside. Terminal A to perform, 54 is a first demodulation unit that demodulates the signal from the terminal, 15 is a command from the first demodulation unit 54,
A first control unit that controls the reading unit 23 and the first modulation unit 24; 16, a power supply unit that supplies power to the IC card reader 27; and 17, switches SW1 and SW18 that connect the power supply unit 16 to the IC card reader 27. Switches SW2 and 19 that connect the power supply unit 16 to the reading unit 23 and the first modulation unit 24 are timers that output a signal and disconnect SW2 after a certain period of time;
7 is a reading section 23, a first modulation section 24, a terminal A26, a first demodulation section 54, a first control section 15, a power supply section 16, and SW1.
, SW2, and a timer 19.

Further, 20 is a second control section that controls the security system, issues commands to the IC card reader 27, and controls door lock opening/closing, and 52 modulates the command code to the IC card reader 27, and outputs a command code to the terminal B. a second modulation section that sends
29 is a terminal B for transmitting and receiving signals with the outside, 28 is a second demodulator that demodulates the signal from terminal B, 53 is a second power supply unit that supplies power to the security system 50, and 50 is a door lock manager. It is a security system that performs P
L1 and PL2 are indicator lights.

Reference numeral 35 indicates a door lock whose opening/closing is controlled by the second control section 20, and numeral 11 indicates an entry person attempting to pass through the door lock. The operation flowchart of the embodiment of the present invention shown in FIG. 3 will be explained below. As a preparatory operation, perform the following settings.

(1) Insert the IC card 21 into the IC card reading section 23. (2) SW1 17 of the power supply section of the IC card reader 27
Turn on. As a result, power is supplied only to the first demodulator 54 and the first controller 15.

(3) Put the IC card reader 27 in your pocket and carry it with you. At this time, touch the terminal A26 with your hand. With the preparations completed as described above, the user heads to the door lock 35 managed by the security system 50.

(4) To unlock the door lock 35, the visitor 11 who is the owner of the IC card reader 27 touches the terminal B29 of the security system 50. At this time, SW3 3
6 is turned ON. (The IC card reader 27 holder will keep touching the terminal B29 until the door is unlocked.) (5) POW ON by turning SW3 36 ON.
An instruction is issued from the second control section 20 to the IC card reader 27.

(6) The instruction from the second control unit 20 is modulated by the second modulation unit at high frequency f2, reaches the terminal A26 of the IC card reader 27 via the terminal B29 and the visitor 11, and is transmitted to the first control unit 20. The signal is demodulated by the demodulator 54 and reaches the first controller 15 . The instructions received by the first control unit 15 are analyzed and executed by the first control unit 15.

(7) In response to the POW ON instruction, the first control section 15 turns on SW2, starts the timer 19, and supplies power to the IC card 21, reading section 23, and first modulation section 24. After the first control unit 15 turns on SW2 18,
Issues a POW ON completion response.

(8) The response from the first control unit 15 is transmitted to the first modulation unit 2
4 modulated by high frequency f1, terminal A26, visitor 1
1, reaches the terminal B29 of the security system 50, is demodulated by the second demodulator 28, and reaches the second controller 20.

(9) At this time, PL1 is lit to indicate that the IC card reader 27 is operating correctly. (10) The second control unit 20 is an IC card reader 27
Request data transfer to. The type of data (such as security data) can be specified in the request. A data transfer request is made by instructing a data transfer request in step (6).

(11) The first control unit 15 of the IC card reader 27:
The data requested for data transfer is taken out from the IC card 21 and transmitted. (12) The second control unit 20 checks the contents of the transferred data and, if correct, releases the door lock 35. At this time, PL2 is turned on to indicate that the door lock release operation has been performed. After a certain period of time, PL1 and PL2
goes out.

(13) The timer 19 of the IC card reader 27 turns off SW2 18 after a certain period of time, and the IC card 21
, the power supply to the reading section 23 and the first modulation section 24 is stopped. As described above, the present invention greatly facilitates the operation of the security system.

[0022] Furthermore, communication between the IC card reader 27 and the security system 50 is achieved by directly connecting the first terminal, the second terminal, and a conductor or semiconductor (which may be a human body) connecting therebetween. Because of this, there is no need to emit radio waves into the air, and communication is possible with a small amount of energy.

[0023] Also, since the energy used is small,
It has no effect on the human body.

[0024]

[Effects of the Invention] - Easier operability than before. - There is no need to take out your IC card from your pocket. - There is no need to insert the IC card into an IC card reader. ■Since there is no need to radiate high frequencies into the air (radio waves), weak high frequencies can be used. -Uses less power. - Because the electric field strength radiated into the air is weak, high frequencies can be used in areas where use is prohibited under the Radio Law. ■Terminal A
, high frequency directly input from terminal B is used. - Since there is no interference between the IC card readers according to the present invention, IC card data of one person can be transferred correctly. - Since the high frequency used in each IC card reader according to the present invention can be made the same, it is easy to adjust the tuning frequency of the IC card reader and the security system. - Less influence from external signals (radio waves of the same frequency, etc.).

As is clear from the above description, the present invention has a significant industrial effect in that a security system can be constructed with simple operations.

[Brief explanation of the drawing]

[Figure 1] Principle diagram of the present invention

[Figure 2] Configuration diagram of an embodiment of the present invention

[Figure 3] Operation flowchart of the embodiment of the present invention

[Figure 4] Illustration of a conventional security system

[Explanation of symbols]

11 Visitors
12 IC card 13 IC card reader 14 Door 15 First control section 16 Power supply section 17 SW1
18 SW219 Timer
20 Second control unit 21 IC card
23 Reading section 24 Modulation section or first modulation section 26 First terminal or terminal A 27 IC card reader 28
Demodulator or second demodulator 29 Second terminal or terminal B 30
IC card external device 31 Conductor or semiconductor 35 Door lock
36 SW350 Security system 52 Second modulation section 5
3 Second power supply section 54 First demodulation section

Claims (2)

[Claims] [Claim 1] A reading section (23) that reads the contents of an IC card (21), a modulation section (24) that modulates the read data of the IC card at a high frequency, and a first terminal that sends out the modulated signal. (26); a second terminal (29) for receiving the modulated signal; and a demodulator (28) for demodulating the modulated signal.
In the IC card external device (30) equipped with
By connecting the first terminal (26) of the card reader (27) and the second terminal (29) of the IC card external device (30) with a conductor or semiconductor (31),
The information in the C card (21) is read by the reader (23), modulated by the modulator (24), and sent to the first terminal (26).
It is characterized in that it is transmitted from the first terminal (26) to the second terminal (29) by a conductor or semiconductor (31), demodulated by the demodulator (28), and transferred to the IC card external device (30). IC card data transfer method. [Claim 2] In the IC card data transfer system according to claim 1, the IC card reader includes a first demodulator that demodulates the modulated code from the first terminal, and a first demodulator that analyzes and executes the code from the demodulated signal. By providing a control unit that encodes a command to the IC card external device, an encoding unit that encodes the command to the IC card external device, and a second modulation unit that modulates the code at high frequency, the command can be encoded by the encoding unit from the IC card external device. , the code is modulated at a high frequency by a second modulation section, the modulated code is transmitted from the second terminal to the first terminal via a conductor or a semiconductor, and the modulated code is transmitted to the first demodulation section. 1. An IC card data transfer system characterized in that the IC card reader is controlled by demodulating the code and analyzing and executing the demodulated code in the control section.