JPH0415778A - Card data check device - Google Patents

Abstract

PURPOSE:To detect the data errors by comparing a check code obtained from the original data with a check code obtained from the data read this time by a check code comparison/decision means and deciding the propriety of the data written this time. CONSTITUTION:The written card data are read by a magnetic reading head 17 and then stored in a read memory m2. Then the written card data of this time stored in a write memory m1 is compared with the read card data of this time stored in the memory m2. If the coincidence is secured between both card data, the proper recording processing is decided. Then a check code is calculated based on the read card data of the memory m2 and used as a 2nd check code c2. This code c2 is stored in the memory m2 to be compared with a 1st check code c1. At the same time, the code c2 is compared with the code c1 of an input memory m0. Then the change of data is decided in the case no coincidence is obtained between both codes. Thus the data errors can be detected.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a cart data check device such as that installed in a card issuing machine, and more particularly to a cart data check device with improved card recording performance. .

(B) Prior Art Generally, this type of cart data checking device performs a data check by comparing the cart data recorded on the card with the data read after recording this data on the card.

(c) Problems to be Solved by the Invention However, such data checking means only determines whether or not the recording process is appropriate for each cartridge. However, even if the written data is corrupted, it cannot be detected and the data is recorded erroneously.

This invention provides a cart data check that can reliably prevent erroneous recording due to errors in the written data itself by comparing and checking the check code based on the original card data and the check code based on the currently read cart data. The purpose is to provide equipment.

(d) Means for solving the problem This invention edits write data from set data, writes the same write data to a plurality of cards,
A card data check device that reads and confirms the data, which creates a check code based on the setting data, and creates a check code based on the card data read from the card after recording processing, and a check code based on the setting data. This card data checking device includes check code comparison and determination means for comparing and determining a check code.

(E) Effect of the Invention According to this invention, the check code comparison and determination means compares and determines the check code based on the original data and the check code based on the currently read data to determine whether or not the currently written data is appropriate. Determine.

(f) Effect of the invention That is, when the check code based on the original card data and the check code based on the card data read this time are different, it indicates that the card data written this time itself is an error, and this error is This indicates that a data editing error or garbled data has occurred, so such data errors can also be discovered.

For this reason, each card to be issued is compared with the original setting data and the written data itself is checked every time the card is recorded, thereby ensuring reliable data management performance and highly reliable data processing. Particularly, when a large number of cards are issued, the accuracy of the check code recorded on each card is accurate, making it possible to perform stable data processing.

Furthermore, since comparison and determination can be made by only partially collating only the check code, the data processing speed can be improved, and the issuing capacity of the card issuing machine etc. can be improved accurately.

(g) Examples An embodiment of the present invention will be described in detail below based on the drawings.

The drawing shows a card data checking device installed in a card issuing machine that issues prepaid cards, etc. In FIG. , a card stocker section 14 for storing processed carts, a card conveyance path 15 connecting the two, a write magnetic head 16 and a read magnetic head 17 disposed from the starting end of the card conveyance path 15. Ru.

The above-mentioned card storage section 13 stores a large number of unprocessed cards 12.
・ is loaded and waiting for storage, and the lower feeding section 1
Cards 12 are fed out one by one from 8 to the card conveyance path 15.
supply to.

Then, the write magnetic head 16 on the card conveyance path 15 writes card data such as the initialized amount data onto the drawn-out card 12, and then the written data is read and the magnetic head 17 After checking the reading with
It is provided so as to be guided to the card stocker section 14 and stored.

In this case, the sorting plate 19 provided at the front stage of the card stocker section 14 is operated to control the conveyance of defective cards to the card collecting section 20 side, where the bad cards are generated.

FIG. 2 shows a control circuit block diagram of the card data checking device, in which the CPU 21 controls each circuit device according to a program stored in the ROM 22, and stores the necessary data in the RAM 23 in an input/output manner.

The input key 24 is the input key for each person using the keyboard.
24, the card data to be initially registered is input and set, such as card name, cart amount, usage identification, etc.

The payout motor M1 drives the payout section 18 to control the feeding of the cards 12 one by one from the cart storage section 13 to the cart transport path 15.

The conveyance motor M2 drives the conveyance belt 15a and the conveyance rollers 15b that constitute the cart conveyance path 15 to nip and convey the card 12 paid out from the card storage section 13, and each magnetic head 16. After passing through the data processing position 17, the card is held and conveyed to the card stocker section 14 or the card collection section 20 at the subsequent stage.

The RAM 23 mentioned above is provided with various memory areas shown in FIG.

That is, the input memory mO stores data such as the card name, card amount, usage identification, etc. set with the input key 24, and the first check code cl calculated based on these data.
to remember.

The write memory m1 stores edited write data such as the card amount, usage identification, issuing institution code, etc. in order to write the above-mentioned setting data to the card via the write magnetic head 16.

The reading memory m2 reads the card data written on the card and reads the card amount through the magnetic head 17;
Read data such as usage identification and issuing agency code, and a second check code C calculated based on these read data
2.

First check code C1 and second check code C2
Both are codes calculated based on their respective data, and the calculation methods are the same. Therefore, if the data are the same, the two check codes are the same. Therefore, if the data are different, the check codes will also be different, and it can be determined that there has been a change in the read data.

The processing operation of the card data checking device 11 configured as described above will be explained with reference to the flowchart of FIG. 4.

First, when the clerk inputs and sets necessary data for card data such as the card name, card amount, and usage identification to be recorded on the card using the input key 24 of the keyboard (first to second steps n1 to n2), The CPU 21 stores the input card data in the input memory mO, calculates a check code based on the data in the input memory mO, and stores this as the first check code c1 in the input memory mO (the third ~4th step n3~n4)
.

Next, after editing the write data excluding the first check code c1 from the input memory mO and storing it in the write memory m1 as the current write data, write processing is performed on the first card via the write magnetic head 16. Execute (fifth and sixth steps n5 and n6).

Next, the magnetic head 1 reads the written card data.
7, and the read card data is stored in the reading memory m2 (seventh step n7).

Next, the current write card data in the write memory m1 and the current read card data in the read memory m2 are compared and checked, and if they do not match, a write error is determined and error processing is performed (8th to 10th steps n8 to n
10) If they match, it is determined that the recording process is appropriate and the reading memory m
A check code is calculated based on the read card data of No. 2, this is the second check code C2, and this is the second check code C2.
The second check code C2 is stored in the reading memory m2 as a comparison target with the check code CI, and the second check code C2 is compared with the first check code CI of the input memory mO. If they do not match, the data has changed, i.e. It is determined that it is a data error and error processing is performed (11th to 14th
Steps nil to n14) If they match, it is determined that the written data is appropriate and there is no change in the data, and data processing for one card is completed. (1st
5 step n15) If it is determined that there are a plurality of cards to be written into, the process skips to the fifth step n5, and the above-described card writing process is repeatedly executed. In the writing process for the second and subsequent cards, the second check code c2 is created in the 12th step n12 for each card read, so the comparison judgment process in the 13th step n13 is a check based on the set original cart data. The code is compared with a check code based on the card data read each time.

If the original check code and the current check code are different in the above comparison judgment, this indicates a change in the data in the write memory m1, that is, a garbled data, indicating that the current card data is an error. Issuance is canceled and error handling is performed.

As mentioned above, by comparing and checking the check code based on the original current card data each time, it is possible to discover that an error has occurred in the written data with respect to the original data, and then issue the card without recording the error. can be prevented. Therefore, card data management performance is improved and highly reliable data processing can be obtained. Particularly, when a large number of cards are issued, the accuracy of the check code recorded on each card is accurate, making it possible to perform stable data processing.

Furthermore, since comparison and determination can be made by only partially collating only the check code, the data processing speed can be improved, and the issuing capacity of the card issuing machine etc. can be improved accurately.

In the correspondence between this invention and the configuration of the embodiment described above, the check code comparison and determination means of the invention is
Corresponding to the processing of the 13th step n13 of P U 21,
Similarly, the check code based on the setting data corresponds to the first check code c1, and the check code based on the read card data corresponds to the second check code c1.
Although the present invention corresponds to the check code c2, the present invention is not limited to the configuration of the above-described embodiment.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show an embodiment of the present invention, and FIG. 1 is a schematic side view of a card data checking device, and FIG.
FIG. 3 is a control circuit block diagram of the card data checking device, FIG. 3 is an explanatory diagram of the memory processing state of the RAM, and FIG. 4 is a flowchart showing the processing operation of the card data checking device. 11...Card data check device 12...Card 16...Writing magnetic head 17...Reading magnetic head 21...CPUcl
c2...check code

Claims (1)

[Claims] (1) A card data check device that edits write data from set data, writes the same write data to multiple cards, and reads and confirms the data, and creates a check code based on the set data. A card data checking device comprising: a check code comparing and determining means for comparing and determining a check code created based on card data read from a card after a recording process and a check code based on the setting data.