JPH08185488A - Two-dimensional code card system - Google Patents

Abstract

(57) [Summary] [Purpose] A method of preventing the use of illegal cards by pasting them together using the initial code area of a two-dimensional code card. [Structure] A two-dimensional code card in which predetermined numbers, characters, etc. represented by a two-dimensional graphic code are written by the card writing means is read by the card reading means, and the instruction content entered by the user is judged to execute the processing. In the two-dimensional code card system described above, the card matching data is placed at a predetermined position of the two-dimensional code card with a metal thin film resistance layer that absorbs electromagnetic waves enclosed, and a dielectric member having the metal thin film resistance layer at the time of reading the card. It is characterized by further comprising control means for electrically detecting and checking the card matching data by electrically reading the card matching data by the resistance layer reading means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to fraud prevention of a two-dimensional code card system in which various information is written by a two-dimensional code and used as a prepaid card or the like.

[0002]

2. Description of the Related Art In a conventional card system such as a prepaid card system, a two-dimensional code card 40 as shown in FIG. 4 is used. Here, 40a is an initial setting code area which is information including the initially set amount of money, 40b is a balance code area which is information including the above-mentioned amount of money used, and 40c is a display character area for the user. Further, there is an opaque print key code 41 on the back side. Information such as the initial code area 40a of the two-dimensional code card 40 shown in FIG.
It is written by a two-dimensional graphic code called a 4-segment Carla code (registered trademark of Alec Japan) as shown in (C). This Carla code is, for example,
The four segments obtained by dividing the quadrangle into four are defined as one basic code, and the black segment that is filled and marked and the white segment that is not marked are associated with information "1" and "0", respectively.
Various kinds of information are displayed by these combinations, and the amount of information becomes large as compared with a bar code and the like, and there are advantages such as direct computer processing being possible.

FIG. 5 is a schematic block diagram of a conventional system ticket issuing machine. When a bill is inserted into the ticket issuing machine as shown in FIG. 5 from the customer side, the ticket issuing machine first issues the prepaid card 40.
After the key code 41 of the transparent ink printed portion of the above is read by the optical reading sensor 50, an initial code area on the card 40 sent by the roller B is shown in FIG.
The write head 51, which is composed of a heat-sensitive 7-needle head or the like as shown in FIG. 1, reciprocally scans at a predetermined speed in a direction orthogonal to the traveling direction of the card, and the heat-sensitive recording allows numerical information of the Carla code to be obtained. I will write it down. For example, when a 10,000-yen bill is inserted and the 10,000-yen button is pressed, numerical information of 10,000 yen and other information is written in the initial code area 40a of the prepaid card 40 as shown in FIG. It will be.

Prepaid card 40 for which writing has been completed
The optical reading head 52 for verification (verification) confirms the written contents of the black and white segment by the Carla code, and if there is no error, the roller A sends the card 40 to the customer.

FIG. 6 is a schematic block diagram of a card reader of a conventional system. Issued prepaid card 40
When the card is used, the card 40 is inserted into the card reader, and the amount of money is input from the charge input unit 60. The CPU 61 reads the remaining amount in the code area of the inserted prepaid card 40 with the reading head 63, and the remaining amount is sufficient. After confirming that, the key code 41 is confirmed, and at the same time, a command is issued to release a corresponding product (playing item, ticket, article, etc.), and at the same time, a new balance (for example, 8,000 yen) is written by the write head 62 to the balance code of the prepaid card 40. Write in area 40b,
It sends it to the customer side and returns it.

[0006]

However, in the above-described conventional system, the confirmation of the remaining amount of the two-dimensional code card 40 and the rewriting process are performed relatively reliably.
Due to insufficient consideration regarding fraudulent card discrimination processing, as shown in FIG. 4, the initial code area 40a portion (amount of 10,000 yen) of the card that has been used several times and has no balance,
The problem that fraudulent card creation is widely used by using the fact that a small card is recognized as a high-value card by a card reader by pasting the remaining code area of another unused card that is cheap and small. There is.

[0007] Therefore, an object of the present invention is to provide a two-dimensional code card system which can surely prevent the use of an illegal card using the initial code area of the two-dimensional code card (the area for writing the card amount). .

[0008]

In order to achieve the above object, the present invention reads a two-dimensional code card in which predetermined numbers, characters, etc. represented by a two-dimensional graphic code are written by a card writing means. In the two-dimensional code card system which executes the processing by judging the instruction content input by the user by means of the means, the card matching data is stored in the above-mentioned 2
A metal thin film resistance layer that absorbs electromagnetic waves is enclosed at a predetermined position of the dimensional code card, and when the card is read, the card matching data of the dielectric member having the metal thin film resistance layer is electrically read and verified by the resistance layer reading means. Then, a control means for detecting a fraudulent card is provided.

[0009]

According to the above construction, the metal film resistance layer is placed as a card matching data in a predetermined position of the two-dimensional code card, and the position of the card matching data is electrically detected and verified when the card is read. Since it is determined whether or not the card is a fraudulent card, a fraudulent card obtained by pasting the initial code area and the remaining amount area of another unused card can be reliably detected as a fraudulent card.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an example of a two-dimensional code card according to an embodiment of the present invention.

In the two-dimensional code card 1 of this embodiment shown in FIG. 1, the initial amount of money is in the initial code area 1a, and the amount of remaining amount information after the card 1 is used in the amount of remaining amount code area 1b,
It is written in a thermosensitive recording system by a graphic code such as a Carla code (a graphic code other than the Carla code may be used).

Further, a glass plate or a ceramic plate, on which a metal film resistance layer is vapor-deposited, is enclosed as card matching data 2 at a predetermined position of the card 1. The position of the card matching data 2 is written in the initial code area 1a as position information by thermal recording.

FIG. 2A is a schematic diagram of a ticket issuing machine for the card 1 shown in FIG. Further, FIG. 2B shows the card reader. Next, the operation will be described with reference to FIG. The ticket issuing machine reads the key code 41 of the transparent ink printed on the card 1 with the reading sensor 50, and then displays the amount information of the graphic code on the initial code area 1a of the card 1 by the writing head 51 for thermal recording similar to the conventional example. Writing is performed, and the position data of the card matching data 2 in the initial code area 1a is written by the write head 51 for thermal recording. When the writing of the card 1 is completed, the writing content is checked by the verifying optical reading head 52, coated, and sent out.

When the card 1 thus issued is used, a card reader in which the read head 8 for detecting the metal film resistance layer of FIG. 3 is incorporated into the conventional optical card reader shown in FIG. 6 is used. It That is, as shown in FIG. 2 (b), the card reader confirms the remaining amount of the card, the key code 41, etc. as in the conventional optical card reading shown in FIG. The card-matching data 2 is electrically read by the reading head 8 for detecting the film resistance layer, and the card matching processing is performed. In the matching process, whether or not the card matching data 2 is enclosed at a predetermined position indicated by the position information of the initial code area is read and confirmed by the reading head 8 for detecting the metal film resistance layer of the card reader.

The read head 8 for detecting the metal film resistance layer is
This is an application of a coaxial type wavelength meter using a coaxial type (or cavity type) resonator 9 for microwaves. While inputting a microwave of a predetermined frequency from the input side and observing the detection output with a diode and a tuning indicator. , The plunger is adjusted to achieve tuning, the search element 10 at the tip is loosely coupled to the card matching data 2 of the metal film resistance layer, and the position of the card matching data 2 is electrically changed by changing the “Q” of the resonator 9. Read on.

As a result of the collation, when the card matching data 2 is enclosed at the position indicated by the position information of the initial code area 1a, the card 1 is judged to be a normal card and the processing is executed to rewrite the remaining amount of the card 1 To return. Even if
If there is no card matching data 2 at the position indicated by the position information in the initial code area 1a, it is clearly judged that the card is an illegal card due to pasting, and the reading process is stopped and a warning is displayed.

[0017]

As described above, according to the present invention,
As a card matching data, a dielectric member having a metal film resistance layer that absorbs electromagnetic waves is enclosed and placed at a predetermined position of the card, and when the card is read, the card matching data is electrically read and collated to detect a fraudulent card. With this configuration, compared to the conventional magnetic card system or the like, there is an effect that it is possible to reliably prevent the use of a fraudulent card such as bonding using the initial code area with an extremely simple configuration.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a two-dimensional code card according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of a ticket issuing machine and its reader for the card shown in FIG.

FIG. 3 is a schematic configuration diagram of a read head for detecting a metal film resistance layer of the card shown in FIG.

FIG. 4 is a diagram showing an example of a two-dimensional code card of a conventional system.

FIG. 5 is a schematic block diagram of a ticket issuing machine of a conventional system.

FIG. 6 is a schematic block diagram of a card reader of a conventional system.

[Explanation of symbols]

 1 Two-dimensional code card 2 Card matching data 8 Read head for detecting metal film resistance layer 9 Coaxial resonator 10 Search element

Claims (1)

[Claims] 1. A two-dimensional code card in which predetermined numbers, characters, etc. represented by a two-dimensional graphic code are written by the card writing means is read by the card reading means, and the instruction contents inputted by the user are judged and processed. In a two-dimensional code card system that executes
A metal thin film resistance layer that absorbs electromagnetic waves is enclosed at a predetermined position of the dimensional code card, and when the card is read, the card matching data of the dielectric member having the metal thin film resistance layer is electrically read and verified by the resistance layer reading means. A two-dimensional code card system characterized by comprising control means for detecting a fraudulent card.