JPH08185495A - Card system for two-dimensional code system - Google Patents

Abstract

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

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 angle 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 converted into an analog signal.
The converter converts the signal into a digital signal and sends the signal to the decoder. The microcomputer processes the image 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.

In the case of reading a bar code symbol, after reading the reflected light as an analog signal with an optical sensor,
Since it is necessary to perform A / D conversion by the A / D converter, there is a problem that the device becomes complicated.

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

[0006]

In order to achieve the above-mentioned object, the present invention uses one angle symbol in which an angle obtained by equally dividing a circle of 360 degrees by 2 ^N (N is an integer of 2 or more) is represented by two straight lines. N
Two-dimensional code card in which two-dimensional code information representing a bit is written, card writing means for writing and issuing necessary information on the card by the two-dimensional code, and two-dimensional code information of angle symbol from the two-dimensional code card Card reading means for reading and decoding and executing 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.
Since each of the eight angle symbols obtained by dividing the circle of degrees into eight equal parts is used to write and read the card using a two-dimensional code that represents three bits, a simple two-dimensional graphic code is used. A two-dimensional code card can be created using a certain angle symbol to configure a two-dimensional code card system.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 illustrates an angle 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 is in the case of N = 3, that is, 8 divisions, has a structure of 2 rows and 4 columns by the angle symbol 1, and the upper row is 45 degrees from the left: “00”.
0 ", 90 degrees:" 001 ", 135 degrees:" 010 ", 1
80 degrees: "011", the lower row is 315 degrees: "10"
0 ", 270 degrees:" 101 ", 225 degrees:" 110 "3
The relationship between the angle symbol 1 of 60 degrees: "111" and the bit display is shown. It should be noted that if the angle data is subdivided into 8 divisions or more and further into n divisions, the display information amount can be increased accordingly, but it is not efficient even if it is mischievously subdivided. We need to find the quantity. From these viewpoints, for example, 8 divisions with N = 3 or 16 divisions with N = 4 is optimal. When N = 4, the two-dimensional code represents 4 bits.

In this example, the angle symbol 1 of the unit code is represented by 3 bits, for example, the first symbol "00".
0 "= 0, second symbol" 001 "= 1, third symbol" 01 "
0 "= 2, 4th symbol" 011 "= 3, 5th symbol" 10 "
It is possible to display octal numbers as 0 "= 4, ... 8th symbol" 111 "= 7, etc. Also, since conversion of binary numbers, octal numbers, and hexadecimal numbers can be easily performed as is well known, 4 Data processing may be performed by converting the bits into hexadecimal representation.

Next, in the case of displaying characters, for example, assuming that one character is 8 bits, A: "000011"
11 ", B:" 00000001 ", C:" 00000
Characters such as 010 ″, ... Can be displayed by the combination conversion of the angle symbol 1. Similarly, if the Chinese character is doubled, this can also be displayed by the combination conversion of the angle 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.

Writing of the two-dimensional code represented by the angle symbol 1 is performed, for example, in one writing block of 7 × 5 dot display,
Writing of each angle symbol 1 is completed by the writing head 4 of the heat-sensitive 7-needle head that moves in the direction (transverse direction) orthogonal to the moving direction of the card at a predetermined speed, and printing of the graphic code is completed. To do. Further, although not shown, various kinds of processing for preventing fraudulent cards and the like are performed at the same time. The card 2 which has completed the writing by the two-dimensional code reads the written contents again by the optical reading head 4 for confirmation, confirms whether there is an error, and sends 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. In the case of 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 fee input section 6, the CPU 7 reads the balance information of the card 2 by the optical read head 8. The optical reading head 8 moves in a direction orthogonal to the moving direction of the card 2 and scans the two-dimensional code written sideways while receiving the reflected light from the LED irradiation light or the like by the optical sensor. , Angle symbol 1 and combination information are read. This read head may be configured by a line sensor or an area sensor.

The graphic code of the angle symbol and the combination information read by the read head 8 are decoded by the decoding unit 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 a play object 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 angle symbol 1 and returned to the customer.

[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 angle symbol that represents an angle obtained by dividing a 360-degree circle by 2 ^N equal to two straight lines, and necessary information is written on the card by a two-dimensional code. Card writing means to issue and 2
Since it has a card reading means for reading and decoding the two-dimensional code information of the angle symbol from the dimension code card and executing the processing, a device such as an A / D converter using a simple graphic code which does not require such accuracy. There is an effect that an efficient 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 by an angle 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 Angle symbol 2 Two-dimensional code card 3,9 Writing head 4,8 Reading head 5 Reading sensor 6 Charge sensor 7 CPU 10 Decoding section

Claims (2)

[Claims] 1. An angle symbol, which represents an angle obtained by equally dividing a 360 ° circle by 2 ^N (N is an integer of 2 or more) by two straight lines, represents N.
Two-dimensional code card in which two-dimensional code information representing a bit is written, card writing means for writing and issuing necessary information on the card by the two-dimensional code, and two-dimensional code information of angle symbol from the two-dimensional code card A card system of a two-dimensional code system having a card reading means for reading and decoding and executing processing. 2. The card system of the two-dimensional code system according to claim 1, wherein the card is a prepaid card.