JPH08185494A - Card system for two-dimensional code system - Google Patents

Abstract

PURPOSE: To provide a two-dimensional code card system capable of processing read data by means of a computer via no special device by using a two-dimensional code based on a graphic for not requiring accuracy so much. CONSTITUTION: Information is written on a card by the two-dimensional code for expressing N bits by one sector symbol 1 displayed by 2N pieces of sectors for equally dividing the circle of 360 deg. into 2N and the two-dimensional code card is prepared. At the time of using the card, the two-dimensional code information of the sector symbol is read from the two-dimensional code card and decoded and the computer executes a processing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card system such as a prepaid card using a two-dimensional graphic code represented by a special fan-shaped symbol.

[0002]

2. Description of the Related Art Conventionally, optical reading devices (scanners, etc.)
The bar code system is the most widely used as a technique for recognizing various kinds of information by using the. The bar code is not only applied to inventory control, process control, assembly, shipment, and other data management in the manufacturing industry, but is also used in POS systems (point-of-sale information management systems) of retail stores and the like.
In these bar code systems, the bar code symbol printed on the information sheet is irradiated with light and the reflected light is read by an optical sensor, and the read analog signal is read by an A sensor.
A digital signal is converted by a / D converter and sent to a decoder, and an image is processed by a microcomputer to read numbers, characters and the like represented by the width of the barcode space.

[0003]

However, in the above-mentioned conventional bar code system, it is required that the width of the white and black bars printed on the information code sheet be accurately printed with extremely high precision. Therefore, there is a problem that it takes a lot of time and money to print the bar code symbol.

When reading a bar code symbol,
After the reflected light is read by the optical sensor as an analog signal, it is necessary to perform A / D conversion by the A / D converter, which causes a problem that the device becomes complicated.

Therefore, the object of the present invention is to use a graphic code having a simple structure in which the accuracy of the written code symbol is not so required, and the read data can be processed by a computer without the need for A / D conversion. It is to provide a two-dimensional code type card system.

[0006]

In order to achieve the above object, the present invention provides a fan-shaped symbol 1 displayed by 2 ^N fan-shaped parts obtained by equally dividing a 360 ° circle into 2 ^N (N is an integer of 2 or more). A two-dimensional code card in which two-dimensional code information representing N bits each is written, card writing means for writing and issuing necessary information on the card by the two-dimensional code, and two-dimensional fan-shaped symbols from the two-dimensional code card. It is characterized by having a card reading means for reading and decoding the code information and executing the processing. Further, the present invention is characterized in that the card is a prepaid card.

[0007]

According to the above structure, 360 is set, for example, when N = 3.
A circle of degrees is divided into 8 equal parts, 0 degrees to 45 degrees, 45 degrees to 90 degrees,
90 degrees to 135 degrees, 135 degrees to 180 degrees, 180 degrees to 2
25 degrees, 225 degrees to 270 degrees, 270 degrees to 315 degrees, 3
Each of the eight fan-shaped symbols formed from 15 degrees to 360 degrees
Since a card is written and read using a two-dimensional code that represents one 3-bit code, a two-dimensional code card is created using a fan-shaped symbol, which is a simple two-dimensional graphic code. The system can be configured.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 illustrates a sector symbol 2 according to an embodiment of the present invention.
It is a figure which shows a dimension code. The two-dimensional code shown in FIG. 1 (A) is for N = 3, and has a structure of 2 rows and 4 columns by 2 ^3, that is, a sector symbol 1 divided into 8 parts, and the upper row is from the left in FIG. 1 (B). Corresponding to each sector shown in (0 degree to 45 degrees) sector: "000", (45 degrees to 90 degrees) sector: "00
1 ", (90 to 135 degrees) fan-shaped:" 010 ", (13
(5 to 180 degrees) Fan-shaped: “011”, and further down is (1
80 degrees to 225 degrees) Fan-shaped: "100" ,. ． ． , (31
5 degrees to 360 degrees) A sector shape is "111".

In the bit representation of the sector symbol 1 of these unit codes, each sector symbol is represented by 3 bits. For example, the first symbol "000" = 0, the second symbol "001" = 1,
Third symbol “010” = 2, fourth symbol “011” = 3, fifth symbol “100” = 4. ． ． Since the octal number can be displayed as the 8th symbol “111” = 7, etc.
Data processing may be performed by converting to a hexadecimal display.

Next, in the case of character display, assuming that each English character is 8 bits, for example, A: "000011111",
B: "00000001", C: "0000001"
0 ", ..., And the like can be displayed by the combination conversion of the sector symbol 1. Similarly, if the Chinese character has 2 bytes, this can also be displayed by the combination conversion of the sector symbol 1.

Next, the operation will be described. FIG. 2 is a schematic block diagram of the ticket issuing machine of the system. The ticket issuing machine shown in FIG. 2 is a card writing means, and when a banknote is inserted into the ticket issuing machine, 2
In the amount information area of the dimension code card 2, the amount information and the like are written by the two-dimensional code shown in FIG.

To write a two-dimensional code represented by a fan-shaped symbol 1, one block for symbol writing is displayed as 7 × 5 dots and is moved at a predetermined speed in a direction orthogonal to the moving direction of the card (horizontal direction) 0.2 mm. Using a heat-sensitive 7-needle head or the like at intervals as the writing head 4, the sector symbols 1 are filled in and written based on the sector angles shown in FIG. 1B to complete the printing of the graphic code. Although not shown, various kinds of processing for preventing illegal cards are also performed at the same time. The card 2 which has completed the writing by the two-dimensional code is read by the optical reading head 4 for confirmation to read the written contents again to check if there is any error, and send it to the customer after coating. Reference numeral 5 is an optical sensor for reading a key code written with transparent ink or the like.

FIG. 3 is a schematic block diagram of the card reader of the system. When using the two-dimensional code card 2, when the card 2 is inserted into the card reader and the desired amount of money is input from the charge input unit 6, the CPU 7 reads the balance information of the card 2 by the optical reading head 8. The optical reading head 8 moves in a direction orthogonal to the moving direction of the card 2 to scan the two-dimensional code written in the horizontal direction, and the reflected light by the LED irradiation light or the like is shown in FIG. Light is received by an optical sensor arranged on the basis of the fan-shaped range, and the fan-shaped symbol 1 and the combination information are read. This reading head may be configured by a line sensor or an area sensor.

The figure code of the sector symbol read by the read head 8 and the combination information are decoded by the decoding section 10 in the reverse procedure of the writing, and then the CPU 7 causes the card 2 to read.
After confirming the remaining amount information and other information, a process such as release of the game is executed, and a new remaining amount is written on the card 2 by the writing head 9 with the two-dimensional code of the sector symbol 1 and returned to the customer. In the above embodiment, the case of N = 3 has been described, but with N = 4, 2 ⁴ or the circle is divided into 16 equal parts and 1
It may be a sectoral symbol of 6. At this time, it becomes two-dimensional code information representing 4 bits.

[0015]

As described above, according to the present invention,
A two-dimensional code card in which two-dimensional code information representing N bits is written with one fan-shaped symbol that is displayed in 2 ^N fan-shaped shapes obtained by equally dividing a 360-degree circle into 2 ^N, and the necessary information is recorded by a two-dimensional code Card writing means for writing and issuing to and 2
Since it has a card reading means for reading and decoding the two-dimensional code information of the fan-shaped symbol from the dimension code card and executing the processing, an apparatus such as an A / D converter using a simple graphic code which does not require such accuracy. There is an effect that an effective two-dimensional code card system can be configured without the need.

[Brief description of drawings]

FIG. 1 is a diagram showing a two-dimensional code using a sector symbol according to an embodiment of the present invention.

FIG. 2 is a schematic block diagram of a card issuing machine according to the embodiment shown in FIG.

FIG. 3 is a schematic block diagram of a card reader according to the embodiment shown in FIG.

[Explanation of symbols]

 1 fan-shaped symbol 2 two-dimensional code card 3, 9 writing head 4, 8 reading head 5 reading sensor 6 fee input unit 7 CPU 10 decoding unit

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Claims (2)

[Claims] 1. A two-dimensional code information in which two-dimensional code information representing N bits is written by one sector symbol displayed in 2 ^N sector shapes obtained by equally dividing a 360 ° circle into 2 ^N (N is an integer of 2 or more). A code card, a card writing means for writing and issuing necessary information on the card by the two-dimensional code, and a card reading means for reading and decoding the two-dimensional code information of the fan-shaped symbol from the two-dimensional code card and executing the processing. A two-dimensional code type card system having. 2. The card system of the two-dimensional code system according to claim 1, wherein the card is a prepaid card.