JP3984062B2 - Card processing apparatus and card processing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a card processing apparatus and a card processing method used when, for example, information unique to a card is read from a card-like recording medium such as a magnetic recording type or an IC memory type to authenticate the card-like recording medium.
[0002]
[Prior art]
As a conventional card processing apparatus, there is a card reader / writer that reads data from an IC card, checks the validity of the IC card itself, and performs card processing.
[0003]
In a conventional card reader / writer, a plurality of records to be checked are stored in advance in a memory as a record table, and the contents of each record are compared with the data read from the IC card, which corresponds to any record By checking whether or not data exists, it is determined whether the IC card is valid or invalid (validity check).
[0004]
In the record table of the memory, as shown in FIG. 5, From data, To data, and the number of check digits indicating a data range corresponding to the record number are stored in advance.
[0005]
When the search target data read from the card by the card reader / writer is, for example, “56789012”, the card reader / writer first checks the number of check digits of the first record in the record table of the memory (S601 in FIG. 6). .
[0006]
Then, the card reader / writer extracts data corresponding to the number of digits from the From data, To data, and search target data (S602, S603).
[0007]
In this example, the From data is “10”, the To data is “20”, the search target data is “56”, and the search target data is not included in the range of the first record. No, and the next record is searched (S605, S606).
[0008]
Such a process is sequentially repeated, and if the search of all records is completed (Yes in S605) or included in some record range (Yes in S604), the search process ends.
[0009]
In this example, since the corresponding data is included in the third record, the process ends when the third record is searched (S604).
[0010]
That is, in the case of a conventional card reader / writer, after extracting data for the number of check digits for each record, it is checked whether or not data exists in the extracted digits.
[0011]
By the way, in designing and commercializing such a card reader / writer, a test (debugging etc.) is performed to check whether the processing function (search program) of the apparatus itself functions normally.
[0012]
[Problems to be solved by the invention]
However, in the case of a conventional card reader / writer, that is, a card processing device, when reading data from the card as described above, the data read from the card is processed after extracting the check digit from the data for each record. Therefore, there is a problem that it takes a lot of time for testing (debugging etc.) because it is necessary to perform troublesome processing of searching whether or not each exists within the range of each record.
[0013]
Also, in the conventional card processing apparatus, when the card is actually used, the number of digits extraction processing from the data and the search processing are performed, so that the card processing takes time, and a bus that is required to shorten the card processing time. There is a problem that it is not suitable for entrance / exit systems that are introduced at ticket gates at train stations and at entrances and exits of toll roads.
[0014]
The present invention has been made to solve such a problem, and an object of the present invention is to provide a card processing apparatus and a card processing method capable of reducing the card processing time.
[0015]
[Means for Solving the Problems]
In order to achieve the above-described object, the invention described in claim 1 includes a reading unit that reads search target data from a card-shaped storage medium, and for the search target data, search range start data and search range end data, Record table storage means for storing a record table composed of check digit data indicating the number of digits to be checked, and the start data based on the check digit data of the record table stored in the record table storage means “0” indicating NULL is assigned to a part other than the check digit of “1”, and “F” which is a hexadecimal final value is assigned to a part other than the check digit of the end data, and the start data and the end data are assigned. Replacement means for replacing, and search target data read by the reading means are replaced by the replacement means. It is characterized by comprising a search unit for searching whether present in serial start data and the range of the end data.
[0016]
The invention of claim 2 stores a record table composed of search range start data and search range end data, and check digit number data indicating the number of digits to be checked, for search target data; Based on the check digit number data of the record table, “0” indicating NULL is substituted into a portion other than the check digit of the start data , and the hexadecimal value is the final value in a portion other than the check digit of the end data. Substituting “F” to replace the start data and the end data, reading the search target data from the card-like storage medium, and the range of the start data and the end data replaced by the read search target data And a step of searching for whether or not it exists within.
[0017]
In the present invention, “0” indicating NULL is assigned to a portion other than the check digit of the start data based on the check digit number data of the record table stored in the record table storage means, and the check data other than the check digit of the end data is substituted. The start data and the end data are substituted in advance by substituting “F”, which is the final value in hexadecimal notation, for the portion .
[0018]
Then, when the search target data is read from the card-shaped storage medium by the reading means, the search is performed to determine whether the search target data exists within the range of the replaced start data and end data. Check whether the storage medium is valid or invalid. As a result, the data extraction process for the number of digits from the search target data, start data, and end data, which has been performed at the time of the conventional search, becomes unnecessary, the card data search process can be performed at high speed, and the card processing time is shortened. can do.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram showing a configuration of a card processing system according to one embodiment of the present invention.
[0020]
As shown in the figure, this card processing system sets a card-like recording medium, for example, an IC memory type credit card (hereinafter referred to as IC card 1), reads information from the IC card 1, and executes card processing. And a computer 4 connected to the card reader / writer 2 via a communication network 3. The computer 4 is a host computer that transfers a record table serving as search source data to the card reader / writer 2, and is installed in a card company or the like. The computer 4 receives a charge reduction request from the card reader / writer 2 and executes a charge reduction process to the corresponding deposit account.
[0021]
The IC card 1 stores card-specific information for identifying the card, that is, search target data. In this example, the value of the search target data is assumed to be 8-digit numerical data, for example, “56789012”, as in the example described in the related art.
[0022]
The card reader / writer 2 includes a control unit such as a CPU, a memory such as an EEPROM and a RAM, a card read / write unit that reads and writes information from the IC card 1, and a control program for the apparatus and a computer 4 that transfer the data to the EEPROM. The record table thus stored is stored, and when the apparatus is activated, the CPU reads the control program and develops it in the RAM, thereby enabling card processing. The contents of the control program and record table can be upgraded or updated.
[0023]
The operation of the card reader / writer 2 in this card processing system will be described below with reference to FIGS. In order to make the description easy to understand, the record table of the search source has a plurality of records and is shown in FIG. 5 in the conventional description, that is, From data indicating the data range (start data of the search range). And To data (search range end data) and check digit number data indicating the number of digits to be checked, which are transferred from the computer 4 to the memory of the card reader / writer 2 and stored in advance. Shall.
[0024]
In the case of this card reader / writer 2, as a preparation before the search process, a data group (From data and To data of each record) of the record table stored in the memory of the card reader / writer 2 is converted.
[0025]
Therefore, in this card reader / writer 2, the control unit first checks whether the number of check digits is the maximum (8 digits) from the first record (S201 in FIG. 2). Perform the replacement process.
[0026]
In the record table of FIG. 5, since the number of check digits of the first record is “2”, data replacement processing is required.
[0027]
In this example, the From data of the first record is “10999999”, but since the required value is only the first two digits, the control unit of the card reader / writer 2 sets the remaining lower six digits to NULL, for example, Replace with “0”. That is, “0” is filled in the digits that are not satisfied (S202).
[0028]
Similarly, the To data is “20999999”, but since the required value is only the first two digits, the control unit of the card reader / writer 2 uses the remaining six digits as the final hexadecimal value. Replace with “F”. That is, “F” is filled in the digits that are not satisfied (S203).
[0029]
This data replacement process is performed for all data groups of each record in the record table.
[0030]
As a result, a record table (data group) after replacement as shown in FIG. 3 is generated.
[0031]
Thereafter, the check digit number is unnecessary in the format of the record table that has been converted in advance because it is not necessary to be aware of it.
[0032]
Next, a search processing operation for data actually read from the IC card 1 will be described. Note that the value of the search target data is “56789012” as in the example described in the related art.
[0033]
In this case, in the card reader / writer 2, when the card read / write unit reads data from the IC card 1 set in the apparatus body, the control unit first sets 1 to the search record number n (S401 in FIG. 4). 3), it is checked whether or not the search target data is included in the range of the first record of the record table of FIG. 3 generated in advance (S402 of FIG. 4).
[0034]
As a result of the check, if the search target data is included in the range of the first record (Yes in S402), the search process ends. However, since this example does not include, the determination in the process of S402 is No. The control unit searches for the next record (S403, S404).
[0035]
This process is sequentially repeated, and if the search of all records is completed (Yes in S403) or if it is included in some record range (Yes in S402), the control unit ends the search process.
[0036]
In the example of the record table of FIG. 3, since “56789012” is included in the range of the third record (555550000 to 7777FFFF), the search process ends there (S403).
[0037]
If the data of the IC card 1 hits any record by the above search processing, the IC card 1 is valid (usable), and subsequently, the data of the data to the IC card 1 by the IC card reader / writer 2 is stored. Normal card processing such as writing processing and processing for requesting a charge reduction to the computer 4 is performed.
[0038]
When the processing of the prior art (flowchart of FIG. 6) and the processing of the present embodiment (flowchart of FIG. 3) are compared, the search processing steps S602 and S603 of FIG. 6 do not exist in FIG. It can be seen that the speed of the system can be increased.
[0039]
That is, in the conventional case, when the number of processing loops increases (that is, the value of the record n is large), the processing increases and the processing time increases accordingly.
[0040]
In the present invention, although the number of digits to be checked is always the maximum number of digits, the conventional process of extracting data for the number of digits that is not uniform every time becomes unnecessary, and the search process can be speeded up. .
[0041]
Here, a case (case) where the search target data is “98765439” will be described. If the record table of FIG. 5 shown in the prior art is used to search “98765439” as it is with the maximum number of search digits “8” as in the present invention, a search result “data not included” is obtained. As a correct answer, since it is necessary to search by extracting 7 digits, it is necessary to derive a result of “included”. For this reason, the pre-conversion process to the record table as shown in FIG. 3 is essential.
[0042]
As in this case, it is also an advantage of the card reader / writer 2 of the present embodiment that the search can be performed without being influenced by a value not included in the number of check digits on the search target data side.
[0043]
In the example described so far, sequential search from the first record is performed, but if each record in the record table is arranged in either ascending order or descending order, binary search can be used together, Furthermore, the search process can be speeded up.
[0044]
As described above, according to the card processing system of this embodiment, when performing data search processing in which the number of digits to be searched is not all digits, the data in the record table in the memory of the card reader / writer 2 is stored in advance other than the number of search digits. The data is replaced so that it is not necessary to consider this part, and when the data is read from the IC card 1, only the data search with the same number of digits is executed, so the card processing procedure is simplified and the card processing is performed. Can be speeded up.
[0045]
In addition, when searching for data, it is possible to avoid the problem that the search result changes depending on the value in the digit position not included in the number of digits to be searched.
[0046]
That is, in performing a data search in which the number of digits to be searched is not all digits by the search process in the record table in the From-To format, the comparison is made with the same number of digits, so that the extraction process becomes unnecessary and the processing procedure is reduced. It is simplified, the search process can be speeded up, and the card processing time can be shortened.
[0047]
In addition, this invention is not limited only to the said embodiment.
In the above embodiment, the card reader / writer 2 that reads and writes the IC card 1 has been described as an example. However, the present invention is also applied to a card processing apparatus that reads and writes a magnetic recording type or wireless communication type card-like recording medium. Needless to say, it can be applied.
[0048]
Further, the control program (software) for executing the processing of the card reader / writer 2 in the above embodiment may be stored in a computer such as an IC card or a flexible disk or a storage medium readable by the card reader / writer 2. Alternatively, it may be transmitted as software (program) alone. In this case, the software (program) stored in the storage medium is read out by the computer or the card reader / writer 2 or downloaded from a site (server) on the LAN or the Internet, thereby enabling the processing in the above embodiment.
[0049]
That is, the software (program) in the present invention is not limited to that stored in a storage medium independent of the computer, but includes software distributed via a transmission medium such as a LAN or the Internet.
[0050]
As the storage medium, in addition to the IC card and the flexible disk, programs such as a magnetic disk, an optical disk (CD-ROM, CD-R, DVD, etc.), a magneto-optical disk (MO, etc.), and a semiconductor memory can be stored. As long as the computer-readable storage medium is used, the storage format may be any form.
[0051]
Further, based on an instruction of a program installed in a computer from a storage medium, an OS (operating system) running on the computer, database management software, MW (middleware) such as network software, and the like realize this embodiment. A part of each process may be executed.
[0052]
Furthermore, the storage medium is not limited to a medium independent of the computer, but also includes a storage medium in which a program transmitted via a LAN or the Internet is downloaded and stored or temporarily stored. Further, the number of storage media is not limited to one, and the case where the processing in the present embodiment is executed from a plurality of media is also included in the recording medium in the present invention, and the media configuration may be any configuration.
[0053]
The computer executes each process in the present embodiment based on a program stored in a storage medium, and includes any one device such as a personal computer or a system in which a plurality of devices are connected to a network. It may be configured as follows.
[0054]
The computer is not limited to a personal computer, but includes an arithmetic processing device, a microcomputer, and the like included in an information processing device, and is a generic term for devices and devices that can realize the functions of the present invention by a program.
[0055]
As described above, according to the present invention, “0” indicating NULL is assigned to a portion other than the check digit of the start data stored in the record table storage means, and 16 is assigned to the portion other than the check digit of the end data. When the search target data is read from the card-like storage medium by the reading means by substituting the start data and the end data in advance by substituting “F” which is the final value of the decimal system , the search target data becomes the start data and by searching whether there within the end data, the search target data which has been performed in the conventional search time, extraction of the number of data digits from the start data and end data becomes unnecessary, card Data search processing can be performed at high speed, and card processing time can be shortened.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a card processing system according to an embodiment of the present invention.
FIG. 2 is a flowchart showing pre-replacement processing by a card reader / writer in the card processing system of this embodiment.
FIG. 3 is a diagram showing the contents of a record table replaced by the pre-replacement process of FIG.
FIG. 4 is a flowchart showing search processing by a card reader / writer.
FIG. 5 is a view showing a record table used in a conventional search process.
FIG. 6 is a flowchart showing a conventional search process.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... IC card, 2 ... Card reader / writer, 3 ... Communication network, 4 ... Computer.

Claims (2)

Reading means for reading search target data from a card-like storage medium;
A record table storage means for storing a record table composed of search range start data and search range end data, and check digit number data indicating the number of digits to be checked, for the search target data;
Based on the check digit number data of the record table stored in the record table storage means, “0” indicating NULL is substituted for the part other than the check digit of the start data , and the part other than the check digit of the end data Substituting means for substituting “F”, which is the final value in hexadecimal, for the start data and the end data,
And a search means for searching whether or not the search object data read by the reading means is within the range of the start data and the end data replaced by the replacement means. Processing equipment. For the search target data, storing a record table composed of search range start data and search range end data, and check digit data indicating the number of digits to be checked;
Based on the check digit number data of the record table, “0” indicating NULL is substituted into a portion other than the check digit of the start data , and the hexadecimal value is the final value in a portion other than the check digit of the end data. Substituting “F” to replace the start data and the end data;
Reading search target data from a card-like storage medium;
And a step of searching whether or not the read search target data exists within the range of the replaced start data and end data.

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