JP3481640B2 - Reader / writer device and prepaid card system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reader / writer device and a prepaid card system which read / write data from / to a prepaid prepaid card and rewrite the data in accordance with the use of the prepaid card.
In particular, it relates to a reader / writer device and a prepaid card system for collating data recorded on a prepaid card.

[0002]

2. Description of the Related Art Today, a prepaid card system that uses a prepaid card in which frequency data (including monetary data etc.) is recorded as a substitute for cash according to a prepaid fee is used as a public telephone charge or a transportation charge. Has been widely introduced as a payment method. By the way, in general, the prepaid card rewrites the data according to its use, so that the data is recorded by a magnetic means that makes it easy to read and write the data.

[0003]

However, since the above-mentioned conventional prepaid card is easy to read and write data, the frequency data becomes 0 when the prepaid fee is used up (the remaining frequency is lost). Even in the prepaid card, an illegal prepaid card could be easily created by copying the data of another prepaid card or rewriting the frequency data. Then, there is a possibility that the illegal prepaid card may be used illegally in the prepaid card system. In view of the above-mentioned conventional drawbacks, the present invention has an object to identify a fraudulent prepaid card when using the prepaid card and prevent the fraudulent use of the prepaid card system.

[0004]

In order to achieve the above object, the reader / writer device of the present invention is a prepaid type in which predetermined data including frequency data and unique data corresponding to a prepaid fee is recorded. In the reader / writer device that reads / writes data from / to the prepaid card and rewrites the frequency data according to the use of the prepaid card, a storage unit that stores specific data of a predetermined prepaid card and a read from the prepaid card. The unique data stored in the storage unit is the same as the unique data read from the prepaid card based on the matching result of the data matching unit, and the unique data stored in the storage unit. It must be equipped with a processing control unit that performs normal data processing only when it is not included in the data. The storage unit reads from the first storage unit storing the unique data of the prepaid card when the frequency data becomes 0 due to the rewriting of the frequency data, and the prepaid card read as a result of the collation by the data collating unit. intrinsic data consists of a second storage unit for storing the specific data if included in the specific data stored in the first storage unit described above, the processing control section prepaid
The unique data read from the id card is the second storage unit.
If it is not included in the unique data stored in
Unique data read from the pay card and the first memory
The unique data stored in
Characterized in that that.

In order to achieve the above-mentioned conventional object, the prepaid card system of the present invention is a prepaid type prepaid card in which predetermined data including frequency data and unique data corresponding to a prepaid fee is recorded. When,
From a plurality of reader / writer devices that read / write data from / to the prepaid card and rewrite the frequency data according to the use of the prepaid card, and a host computer connected to the reader / writer devices via a network. The reader / writer device includes a storage unit for storing specific data of a predetermined prepaid card, a data collating unit for collating the specific data read from the prepaid card with the specific data stored in the storage unit, and the data collating unit. When the unique data that is the same as the unique data read from the prepaid card based on the matching result of is not included in the unique data stored in the storage unit.
And a storage unit for performing normal data processing, wherein the storage unit stores the unique data of the prepaid card when the frequency data becomes 0 by rewriting the frequency data. Section and the unique data read from the prepaid card as a result of matching by the data matching section is included in the unique data stored in the first storage section, the unique data is stored and transmitted from the host computer. Second to store unique data
The storage unit of the prepaid card
The unique data read from the card is stored in the second storage section.
Prepaid if not included in the unique data
Write the unique data read from the card and the first storage section above.
The stored unique data is collated by the data collating section, and the
Unique data read from the pay card is the first memory
If it is included in the unique data stored in the department,
It is characterized in that the unique data is transmitted to the host computer, and the host computer transmits the unique data received from any of the reader / writer devices to a reader / writer device other than the reader / writer device.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a reader / writer device according to an embodiment of the present invention. 3 is a perspective view showing a prepaid card for reading and writing data by the reader / writer device 1 of the present embodiment, and FIG. 4 is a chart showing a format of data recorded on the prepaid card.

Prepaid card 3 used in this embodiment
Is not different from an ordinary prepaid card, and is provided with a band-shaped data recording area 31 on the surface of the substrate, and includes frequency data and unique data corresponding to the fee paid in advance when the prepaid card 3 is issued. It is formed by recording predetermined data.

The reader / writer device 1 of this embodiment is a storage unit for storing specific data of a predetermined prepaid card 3, and a data collation for collating the specific data read from the prepaid card 3 with the specific data stored in the RAM 10. As a processing control unit that performs normal data processing only when the unique data that is the same as the unique data read from the prepaid card 3 based on the matching result of the copy matching unit and the data matching unit is not included in the unique data stored in the RAM 10. And a CPU 11. Further, it is provided with a modem 12 for connecting to the host computer 2 via a network and transmitting / receiving data.

As shown in FIG. 2, the RAM 10 is an area for storing unique data (used unique data) of the prepaid card 1 when the frequency data of the prepaid card 3 becomes 0 due to rewriting. If the unique data read from the prepaid card 1 as a result of collation of the (used unique data storage area) 10a with the unique data by the CPU 11 is included in the unique data stored in the used unique data storage area 10a, the relevant unique data An area (unauthorized unique data storage area) 10b for storing (unauthorized unique data).

Further, the reader / writer apparatus 1 inputs the magnetic head 13 for reading / writing data to / from the data recording area 31 of the prepaid card 3, and a predetermined command or data, as in the ordinary reader / writer apparatus. A keyboard 14 for operating, a display 15 and a printer 16 for outputting a result of data processing, and a ROM 17 storing a resident program such as an operation program for controlling the operation of the reader / writer device 1 and data. It becomes. In the present embodiment, the CPU 11 is the ROM 1
The RAM 10 also functions as an operation control unit that controls the operations of the above units according to the operation program of FIG. 7, and the RAM 10 also functions as a working memory used when the CPU 11 processes data (see FIG. 2). In addition, the processing control unit and the data processing unit,
It goes without saying that the work memory may be provided separately from the CPU 11 and the RAM 10. The modem 12, magnetic head 13, keyboard 14, display 15, printer 16
CPU11 through various interfaces respectively
It is connected to the.

FIG. 5 shows a prepaid card system using the reader / writer device 1. The prepaid card system of this embodiment includes a host computer 2, a plurality of reader / writer devices 1 connected to the host computer 2 via a network, and a prepaid card 3. The reader / writer device 2 may be provided in a plurality of stores, and a plurality of the reader / writer devices 1 in the same store may be provided.
May be Further, a POS terminal device may be interposed between the host computer 2 and the reader / writer device 1 to form a network.

In this embodiment, the reader / writer device 1
The CPU 11 of the CPU 11 uses the unique data read from the prepaid card 3 as the used unique data storage area 10a of the RAM 10.
If the unique data that is the same as the unique data read from the prepaid card 3 is included in the unique data stored in the used unique data storage area 10a based on the result of collation with the unique data stored in 1. It is transmitted to the host computer 2 as unique data. Also,
The unauthorized unique data transmitted from the host computer 2 is stored in the unauthorized unique data storage area 10b of the RAM 10.

When the host computer 2 receives unauthorized unique data from any reader / writer device 1a,
The unauthorized unique data is transmitted to the reader / writer device 1 other than the reader / writer device 1a.

Next, the operation of this embodiment will be described with reference to FIGS.
This will be described with reference to the flowchart in FIG. After being activated, the reader / writer device 1 of the present embodiment first communicates with the host computer 2 to acquire unauthorized unique data and stores it in the unauthorized unique data storage area 10b of the RAM 10 (step S).
1). Then, it waits for the insertion of the prepaid card 3 (step S2). The communication with the host computer 2 and the update of the unauthorized unique data are performed at regular intervals (step S3).

When the prepaid card 3 is inserted into the reader / writer device 1, the CPU 11 reads the unique data, frequency data, etc. recorded in the data recording area 31 by the magnetic head 13 (step S4). If the data cannot be read here, no data processing is performed thereafter and an error is displayed on the display 15 and the prepaid card 3 is ejected (steps S6 and S2).
0).

When the data can be read, the CP
Check whether the U11 frequency data is 0 (step S7),
Next, the unique data is collated with the unauthorized unique data stored in the unauthorized unique data storage area 10b of the RAM 10 (step S8). When the frequency data is 0 (when there is no residual frequency) and when there is illegal unique data that is the same as the read unique data, no error is displayed on the display unit 15 without any data processing thereafter. The prepaid card 3 is displayed and ejected (steps S6 and S20).

When the frequency data is not 0 and the unique data does not match the illegal unique data, the unique data is stored in the RAM1.
The used unique data stored in the used unique data storage area 10a of 0 is collated (step S9). When there is the same used unique data as the read unique data, the unique data is transmitted to the host computer 2 as unauthorized unique data (step S10), and R
The data is additionally stored in the illegal unique data storage area of the AM 10 (step S11). After that, an error message is displayed on the display 15 and the prepaid card 3 is ejected (steps S12, S).
20).

When the unique data does not match the used unique data, the remaining number of the prepaid card 3 is displayed on the display 15 (step S13). And the keyboard 14
When information or a command such as the withdrawal amount is input from (step S14), the frequency data is updated according to the information (step S15), and the new frequency data is recorded in the data recording area of the prepaid card 3 by the magnetic head 13. Write (step S16).

Here, when the updated new frequency data becomes 0 (the remaining frequency disappears), the CPU 11 additionally stores the unique data as used unique data in the used unique data storage area 10a of the RAM 10 ( Step S1
7, S18). After this, the updated remaining number of the prepaid card 3 is displayed on the display unit 15 (the same applies when the remaining number is 0).
The displayed prepaid card 3 is ejected from the reader / writer device 1 (steps S19 and S20). After the above processing, the display on the display 15 is cleared and the prepaid card 3
Returns to the state after insertion (steps S21 and S2).

[0020]

As described above, the reader / writer device of the present invention stores the peculiar data of the prepaid card in which the remaining number is 0, and stores the peculiar data when performing the data processing of the prepaid card. Since it was decided to collate with the used unique data, it is possible to find an unauthorized prepaid card created by copying the data of another prepaid card to the used prepaid card or rewriting the frequency data. This has the effect of preventing unauthorized use of the system.

Further, when the prepaid card having the unique data stored as the used unique data is used, the unique data is stored as the illegal unique data and read from the prepaid card.
Data stored in the second storage unit by the data
From the prepaid card if not included in
The unique data read and the fixed data stored in the first storage unit
Data (used unique data) is collated by the data collating unit, it is possible to double-check the above-mentioned fraudulent prepaid card, which is more effective in preventing fraudulent use of the prepaid card system. is there.

Further, the prepaid card system using the reader / writer device has the illegal unique data because the illegal unique data is collected by the host computer and transmitted to all the reader / writer devices connected to the network. The use of the prepaid card can be inspected by all the reader / writer devices, which is more effective in preventing the illegal use of the prepaid card system. In addition, unique data read from the prepaid card
And the unique data stored in the first storage unit (used unique data
Data) to the data collating unit, the prepaid car
The unique data read from the
If so, the unique data is regarded as illegal unique data.
Since it was decided to send it to the host computer,
Data sent to the computer is fraudulent unique data
Only the amount of data that the host computer should manage
Can be kept low.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a reader / writer device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing a configuration of a RAM of the reader / writer device of FIG.

FIG. 3 is a perspective view showing a prepaid card used in this embodiment.

FIG. 4 is a diagram showing recorded contents of a data recording area of the prepaid card of FIG.

FIG. 5 is a schematic diagram showing a prepaid card system according to an embodiment of the present invention.

FIG. 6 is a flowchart showing an operation of the prepaid card system of the present embodiment.

FIG. 7 is a flowchart of the above.

[Explanation of symbols] 1 Reader / Writer device 2 Host computer 3 prepaid cards 10 RAM (storage unit) 10a Used unique data storage area 10b Unauthorized unique data storage area 11 CPU (data collation unit and processing control unit)

Claims (2)

(57) [Claims] 1. A prepaid type prepaid card in which predetermined data including frequency data and unique data corresponding to a prepaid fee is recorded, and the data is read and written according to the use of the prepaid card. In the reader / writer device that rewrites the frequency data, a storage unit that stores specific data of a predetermined prepaid card, and a data collation unit that collates the specific data read from the prepaid card with the specific data stored in the storage unit,
And a processing control unit that performs normal data processing only when the same unique data as the unique data read from the prepaid card based on the matching result of the data matching unit is not included in the unique data stored in the storage unit. The storage unit includes a first storage unit that stores unique data of the prepaid card when the frequency data becomes 0 due to rewriting of the frequency data, and a prepaid as a result of collation by the data collating unit. And a second storage unit that stores the unique data when the unique data read from the card is included in the unique data stored in the first storage unit. The processing control unit reads the unique data from the prepaid card. Unique
The data is included in the unique data stored in the second storage section.
If it is not read, read the fixed card read from the prepaid card.
The existing data and the unique data stored in the first storage unit
A reader / writer device characterized by causing a data collating unit to collate . 2. A prepaid type prepaid card in which predetermined data including frequency data and unique data corresponding to a prepaid fee is recorded, and the prepaid card which reads and writes data from the prepaid card. The reader / writer device rewrites the frequency data according to use and a host computer connected to the plurality of reader / writer devices via a network, and the reader / writer device is specific data of a predetermined prepaid card. And a data collating unit that collates the peculiar data read from the prepaid card with the peculiar data stored in the storage unit, and the same as the peculiar data read from the prepaid card based on the collation result of the data collating unit. specific data is included in the specific data stored in the storage unit of When no only it and a process control unit for performing normal data processing, the storage unit includes a first storing inherent data of the prepaid card when該度number of data by rewriting the frequency data becomes 0 No. 1 storage unit and the unique data read from the prepaid card as a result of the matching of the data matching unit is included in the unique data stored in the first memory unit, the unique data is stored and the host computer is also stored. And a second storage unit that stores the unique data transmitted from the processing control unit, wherein the processing control unit reads the unique data read from the prepaid card.
The data is included in the unique data stored in the second storage section.
If it is not read, read the fixed card read from the prepaid card.
The existing data and the unique data stored in the first storage unit
Read the data from the prepaid card by using the data verification unit
The unique data stored in the first storage unit
If it is included in the data,
Prepaid card system sends to preparative computer, said host computer, characterized in that for transmitting the specific data received from any of the above reader-writer device to the reader writer device other than the reader-writer device.