JP7440175B2 - Card management system, verification device, terminal device, and card management method - Google Patents

Description

The present invention relates to a card management system, a verification device, a terminal device, and a card management method.

Various transactions (payments, point services, etc.) using magnetic cards are provided at retail stores and the like. In such transactions, a customer or a retail store employee may operate a magnetic card using a magnetic card reader or the like to read the card number attached to the magnetic card.

On the other hand, the reading operation may fail due to factors such as deterioration of the magnetic field of the magnetic card. Patent Document 1 discloses a technique related to a failure in a reading operation.

When the card reader described in Patent Document 1 fails to read a magnetic card, it transmits data representing the reading failure to a host device. By taking statistics on the transmitted data, it is possible to estimate whether the cause of the reading failure lies in the magnetic card or the card reader.

Japanese Patent Application Publication No. 11-242726

Generally, if a magnetic card reading fails, the customer or retail store employee repeats the reading operation with the card reader multiple times. However, if the reading failure is due to deterioration of magnetism, scratches, cracks, or other physical damage to the magnetic card, reading is unlikely to be successful even if the reading operation is repeated multiple times. Therefore, after repeating this operation, the card reader gives up on reading the card and the employee manually enters the card number from a host terminal such as a POS (Point of Sales), or the provision of transactions using magnetic cards is discontinued. In some cases, other measures may be taken. In this case, there was a possibility that store service would deteriorate, such as increased labor for employees and longer checkout lines during busy hours.

Further, even if it is possible to assume that the cause of reading failure is due to the magnetic card using the card reader described in Patent Document 1, reading the magnetic card remains difficult. Therefore, until the customer exchanges the magnetic card for a new card, the above-mentioned reading failure and the above-mentioned procedure are repeated every time a transaction is made, potentially causing trouble for employees.

The present invention provides a card management system, a verification device, a terminal device, and a card management method that solve the above problems.

In order to achieve the above object, a card management system according to one aspect of the present invention provides unique data including a card number uniquely assigned to a card and first data related to an acquisition error of recorded information recorded on the card. and a management means that manages the recorded information recorded on the target card by an electromagnetic method, and when an acquisition error of the recorded information occurs, a unique management means that includes first data related to the acquisition error. an acquisition means for acquiring data, and when an acquisition error of the recorded information occurs in the acquisition means, the unique data managed by the management means and the unique data acquired by the acquisition means are collated. , and a verification means for specifying the card number of the target card.

In order to achieve the above object, a verification device according to one aspect of the present invention includes unique data including a card number uniquely attached to a card and first data related to an acquisition error of recorded information recorded on the card. When an acquisition error occurs in the acquisition means that acquires the recorded information recorded on the target card by an electromagnetic method, the unique data managed by the management means; A verification means is provided for identifying the card number of the target card by comparing the recorded information recorded on the target card acquired by the acquisition unit with unique data including first data related to an acquisition error.

In order to achieve the above object, a terminal device according to one aspect of the present invention acquires recorded information recorded on a target card by an electromagnetic method, and when an acquisition error occurs, the terminal device according to one aspect of the present invention acquires recorded information recorded on a target card. an acquisition unit that acquires unique data including first data related to an acquisition error of recorded information; and a collation that identifies the card number of the target card using the unique data, and the unique data acquired by the acquisition unit. and transmitting means for transmitting data to the device.

In order to achieve the above object, a card management method according to one aspect of the present invention provides a card management method that, when an error occurs in acquiring recorded information recorded on a target card by an electromagnetic method, a card that is uniquely attached to the target card. a first step of transmitting a number and unique data including first data related to the acquisition error of the recorded information; and a first step of managing the card number transmitted in the first step in association with the unique data. 2 steps, a third step of transmitting the unique data related to the target card when an acquisition error occurs by an electromagnetic method of the recorded information recorded on the target card; and a third step of transmitting the unique data related to the target card; and a fourth step of comparing the unique data sent in the third step with the unique data transmitted in the third step to identify the card number of the target card.

According to the above aspect of the present invention, it is possible to reduce the effort required for transactions using cards that are difficult to read.

1 is a block diagram showing a configuration example of a card management system according to an embodiment of the present invention. FIG. 3 is a diagram showing an example of waveform data and decoded data related to a readable card. FIG. 3 is a diagram showing an example of waveform data and decoded data related to a card that is difficult to read. It is a figure showing an example of the 1st data managed by the management means by one embodiment of the present invention. It is a figure which shows an example of the 2nd data managed by the management means by one embodiment of this invention. 2 is a flowchart showing processing performed by a card management system according to an embodiment of the present invention before unique data of a target card is recorded in a verification device. It is a flowchart showing the processing performed by the card management system according to one embodiment of the present invention after the unique data of the target card is recorded in the verification device. FIG. 3 is a diagram illustrating an example in which decoded data changes according to an embodiment of the present invention. FIG. 3 is a diagram showing an example in which waveform data fluctuates according to an embodiment of the present invention. FIG. 3 is a diagram showing an example in which image data fluctuates according to an embodiment of the present invention. FIG. 7 is a diagram showing a modified example of decoded data according to another embodiment of the present invention. 1 is a diagram showing an example of the minimum configuration of a card management system according to an embodiment of the present invention.

Hereinafter, a card management system 1 according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing an example of the configuration of a card management system 1 according to this embodiment. As shown in FIG. 1, the card management system 1 according to this embodiment includes a terminal device 2 and a verification device 3. The terminal device 2 and the verification device 3 are connected via a wired or wireless network NW.

The card management system 1 according to this embodiment is used, for example, in various transactions using a card (magnetic card) C at a retail store or the like. Recorded information is recorded on the card C. The recorded information is information related to a card number uniquely attached to the card C, and is, for example, magnetic information. When a customer or an employee operates the card C with the terminal device 2, recorded information (magnetic information) on the card C is read. The card number of the card C is specified by performing processing such as decoding processing and error correction processing on the read recorded information. If the recorded information of the card C is not successfully acquired, the verification device 3 identifies the card number of the card C using information related to the recorded information acquisition error.

<Terminal device 2>
First, the terminal device 2 will be explained.
The terminal device 2 is, for example, a device installed in a retail store or the like. The terminal device 2 according to this embodiment includes a magnetic card reader 210 and a POS 220. The magnetic card reader 210 (obtaining means) according to this embodiment includes a CPU (Central Processing Unit) 211, a recording section 212, an image scanner 213, and a magnetic head 214.

The POS 220 manages various transactions (payments, etc.) based on the card number of the card C. When a transaction using card C starts, POS 220 notifies magnetic card reader 210 that the transaction has started. The POS 220 according to this embodiment also functions as a transmitting means for transmitting unique data D of the card C (details will be described later) to the verification device 3. POS 220 may include a display.

The image scanner 213 acquires second data D20 indicating the appearance of the card C. The second data D20 according to this embodiment is image data obtained from the card C by an optical method. The image scanner 213 outputs the image data of the card C (second data D20) to the CPU 211.

The magnetic head 214 acquires the magnetic information recorded on the magnetic stripe C1 of the card C as waveform data D11 (waveform D11a) by an electromagnetic method. More specifically, by sliding the magnetic head 214 and the magnetic stripe C1, an analog signal whose amplitude changes in proportion to the magnetism of the magnetic stripe C1 is obtained. The magnetic head 214 outputs the acquired waveform data D11 to the CPU 211.

The CPU 211 performs AD (Analog Digital) conversion on the waveform data D11 output from the magnetic head 214. The CPU 211 outputs the AD-converted waveform data D11 to the recording unit 212. The CPU 211 decodes the waveform data D11 output from the magnetic head 214, and generates decoded data D12. The decoded data D12 is a number string. The CPU 211 outputs the generated decoded data D12 to the recording unit 212. Note that the card management system 1 may include means different from the CPU 211, and the different means may decode the waveform data D11 and generate the decoded data D12. The CPU 211 determines whether the generated decoded data D12 conforms to a specified data format. The default data format is, for example, a data format defined by JIS X6302-2. If the generated decrypted data D12 conforms to the predetermined data format, the CPU 211 extracts the card number of the card C from the decrypted data D12. The CPU 211 outputs the extracted card number to the POS 220. The CPU 211 outputs the image data output from the image scanner 213 to the recording unit 212.

The recording unit 212 records the waveform data D11, decoded data D12, and image data (second data D20) output from the CPU 211 every time the card C is read.

<Information obtained by reading Card C>
If the card C (magnetic stripe C1) has reduced magnetism, scratches, cracks, or other physical damage, the magnetic head 214 may not be able to read the card C normally. FIG. 2A shows waveform data D11 (waveform D11a) obtained by reading the card C with the magnetic head 214 and decoded data D12 obtained by decoding the waveform data D11 by the CPU 211 for a card C that is not physically damaged. FIG. FIG. 2B is a diagram showing waveform data D11 obtained by reading with the magnetic head 214 and decoded data D12 obtained by decoding the waveform data D11 by the CPU 211 regarding the physically damaged card C. be.

As shown in FIG. 2A, in the case of a card C that is not physically damaged, the amplitude of the waveform data D11 acquired by the magnetic head 214 is approximately constant, and the decoded data D12 obtained by decoding the waveform data D11 is normal. Matches data S. Note that "normal data S" means decoded data D12 obtained when a normal card C is read and decrypted normally. In addition, in the illustrated example, a cyclic number sequence of 1 to 9 and 0 is shown as the normal data S for the sake of easy understanding. The actual normal data S differs depending on the card C.

As shown in FIG. 2B, in the case of a physically damaged card C, the amplitude of the waveform data D11 acquired by the magnetic head 214 partially decreases. Here, there is a lower limit L for the signal level (amplitude) that can be decoded by the CPU 211. In other words, a portion of the waveform data D11 whose amplitude is below the lower limit L is not decoded by the CPU 211. In the illustrated example, the amplitude of the portion corresponding to "5678" in the waveform data D11 is below the lower limit L, and this portion is missing from the decoded data D12.

<Verification device 3 and unique data D>
Next, the verification device 3 and the unique data D will be explained.
The verification device 3 is, for example, a cloud. As shown in FIG. 1, the verification device 3 includes a management means 310 and a verification means 320.

The management means 310 is, for example, a database. The management unit 310 manages the card number of the card C and the unique data D related to the acquisition error of the magnetic information recorded on the card C in association with each other. The unique data D according to this embodiment includes first data D10 and second data D20.

As shown in FIG. 3A, the first data D10 according to this embodiment includes waveform data D11 and decoded data D12. Note that the waveform data D11 may be, for example, an AD-converted waveform D11a. Alternatively, the waveform data D11 may be an envelope D11b of the waveform D11a. When using the envelope D11b as the waveform data D11, the matching device 3 may generate the envelope D11b. Both the waveform D11a and the envelope D11b may be used as the waveform data D11.

The second data D20 is data indicating the appearance of the card C. As shown in FIG. 3B, the second data D20 according to this embodiment is image data acquired by the image scanner 213. The second data D20 according to this embodiment includes a design D21 of the card C, a customer's signature D22 attached to the card C, and a scratch D23 on the card C. Note that the flaw D23 may be a flaw formed on the surface of the card C, or may be a crack in the card C.

When an error in acquiring recorded information occurs in the magnetic card reader 210, the collation means 320 collects the above-mentioned unique data (management unique data) D managed by the collation device 3 and the unique data acquired by the magnetic card reader 210 ( The card number of the card C is identified by comparing it with the acquired unique data) D.

<Processing performed by card management system 1>
Next, an example of a processing procedure performed by the card management system 1 will be explained. Hereinafter, the card C to be processed by the card management system 1 may be particularly referred to as the target card C.

First, an example of the processing procedure before the unique data D of the target card C is recorded in the verification device 3 will be described. FIG. 4A is a flowchart showing an example of a processing procedure performed by the card management system 1 according to the present embodiment before the unique data D of the target card C is recorded in the verification device 3.

(Step S101) The POS 220 notifies the magnetic card reader 210 that a new transaction is about to start. For example, when an employee starts operating a cash register, POS 220 notifies magnetic card reader 210 of the start of a transaction. Based on the transaction start notification, the magnetic card reader 210 recognizes the transaction category.

(Step S102) The magnetic card reader 210 acquires magnetic information (code data) recorded on the target card C. For example, when an employee or a customer slides the magnetic stripe C1 of the target card C against the magnetic head 214, the magnetic head 214 acquires waveform data D11 (waveform D11a) corresponding to the magnetic information of the target card C. The magnetic head 214 outputs the acquired waveform data D11 to the CPU 211. The CPU 211 performs AD conversion on the waveform data D11 output by the magnetic head 214, and outputs the AD-converted waveform data D11 to the recording unit 212.

(Step S103) The image scanner 213 acquires image data of the target card C. The image scanner 213 outputs the acquired image data to the CPU 211. The CPU 211 outputs image data acquired from the image scanner 213 to the recording unit 212. Note that the processing in step S102 and the processing in step S103 may be performed simultaneously. Alternatively, the processing in step S102 and the processing in step S103 may be performed at different timings.

(Step S104) The CPU 211 decodes the waveform data D11 output by the magnetic head 214, and generates decoded data D12. The CPU 211 outputs the generated decoded data D12 to the recording unit 212.

(Step S105) The recording unit 212 records the waveform data D11 and decoded data D12 (first data D10) outputted by the CPU 211, and image data (second data D20) for each reading. In other words, the recording unit 212 records the unique data D including the first data D10 and the second data D20 every time it is read.

(Step S106) The CPU 211 determines whether the generated decoded data D12 conforms to a specified data format. If the CPU 211 determines that the data format conforms to the default data format (step S106; YES), the process of step S107 is performed; if it determines that the data format does not conform to the default data format (step S106; If NO), the process of step S109 is performed.

(Step S107) The CPU 211 extracts the card number of the target card C from the decrypted data D12. The CPU 211 outputs the extracted card number to the POS 220. The POS 220 performs various transaction processing (payment processing, point service provision, etc.) based on the card number output by the CPU 211.

(Step S108) The recording unit 212 discards the recorded unique data D (first data D10 and second data D20).

(Step S109) The CPU 211 notifies the POS 220 that the target card C could not be read (acquisition error).

(Step S110) The POS 220 determines whether there is an instruction to end reading from a customer or an employee. If there is no reading end instruction (step S110; NO), the processes of steps S102 to S106 are repeated. By repeating the processes from step S102 to step S106, the unique data D corresponding to the number of times of reading is recorded in the recording unit 212. If there is an instruction to finish reading (step S110; YES), the process of step S111 is performed.

(Step S111) The POS 220 waits for the customer or employee to manually input the card number (Step S111; NO). If the customer or employee manually inputs the card number (step S111; YES), the process of step S112 is performed. Note that if the card number is not manually input, the transaction may be canceled.

(Step S112) The POS 220 instructs the magnetic card reader 210 to transmit the unique data D. The magnetic card reader 210 outputs the unique data D (first data D10 and second data D20) corresponding to the number of times of reading recorded in the recording unit 212 to the POS 220. The POS 220 transmits the manually input card number and the unique data D corresponding to the number of readings output by the CPU 211 to the verification device 3.

(Step S113) The verification device 3 associates the card number sent by the POS 220 with the unique data D corresponding to the number of times of reading, and stores it in the management means 310. Note that the management means 310 may store the waveform D11a as the waveform data D11, or may store the envelope D11b. Alternatively, the management means 310 may store waveform data D11 including both the waveform D11a and the envelope D11b. When the waveform data D11 including the envelope D11b is stored in the management means 310, the matching device 3 may generate the envelope D11b from the waveform D11a.

Next, an example of the processing procedure after the unique data D of the target card C is recorded in the verification device 3 will be explained. FIG. 4B is a flowchart illustrating an example of a processing procedure performed by the card management system 1 according to the present embodiment after the unique data D of the target card C is recorded in the verification device 3.

(Step S201) Similar to step S101, the POS 220 notifies the magnetic card reader 210 that a new transaction is about to start.

(Step S202) The magnetic card reader 210 acquires magnetic information (code data) recorded on the target card C, similarly to step S102. The magnetic head 214 acquires waveform data D11 (waveform D11a) corresponding to the target card C. The magnetic head 214 outputs the acquired waveform data D11 to the CPU 211. The CPU 211 performs AD conversion on the waveform data D11 output by the magnetic head 214, and outputs the AD-converted waveform data D11 to the recording unit 212.

(Step S203) The image scanner 213 acquires image data of the target card C, similarly to step S103. The image scanner 213 outputs the acquired image data to the CPU 211. The CPU 211 outputs image data acquired from the image scanner 213 to the recording unit 212. Note that the process in step S202 and the process in step S203 may be performed simultaneously. Alternatively, the processing in step S202 and the processing in step S203 may be performed at different timings.

(Step S204) Similar to step S104, the CPU 211 decodes the waveform data D11 output by the magnetic head 214 to generate decoded data D12. The CPU 211 outputs the generated decoded data D12 to the recording unit 212.

(Step S205) The recording unit 212 records the waveform data D11 and decoded data D12 (first data D10) output by the CPU 211, and image data (second data D20).

(Step S206) Similar to step S106, the CPU 211 determines whether the generated decoded data D12 conforms to the specified data format. If the CPU 211 determines that the data format conforms to the default data format (step S206; YES), the process of step S207 is performed; if it determines that the data format does not conform to the default data format (step S206; If NO), the process of step S209 is performed.

(Step S207) Similar to step S107, the CPU 211 extracts the card number of the target card C from the decrypted data D12. The CPU 211 outputs the extracted card number to the POS 220. The POS 220 performs various transaction processing (payment processing, point service provision, etc.) based on the card number output by the CPU 211.

(Step S208) Similar to step S108, the recording unit 212 discards the recorded unique data D (first data D10 and second data D20).

(Step S209) The magnetic card reader 210 outputs the unique data D (first data D10 and second data D20) recorded in the recording unit 212 to the POS 220. The POS 220 transmits the unique data D output by the CPU 211 to the verification device 3.

(Step S210) The collation means 320 collates the unique data D (obtained unique data D) transmitted from the POS 220 and the unique data D (management unique data) stored in the management means 310. For example, the collation unit 320 collates the acquired unique data D with the management unique data D in which the first data D10 (waveform data D11 and decoded data D12) and the second data D20 match. Alternatively, the collation unit 320 collates the acquired unique data D with the management unique data D that is close (similar) to the first data D10 and the second data D20.

(Step S211) The verification means 320 identifies the card number linked to the management specific data D verified by the verification means 320. The verification device 3 transmits the identified card number to the POS 220.

(Step S212) The POS 220 presents the card number sent by the verification device 3 to the customer, and requests approval to confirm that there is no mistake in the verified card number. For example, the POS 220 displays a card number approval screen on a display included in the POS 220.

(Step S213) The POS 220 determines whether the presented card number has been approved by the customer. If the presented card number is approved (step S213; YES), the POS 220 performs various transaction processes (payment processing, point service provision, etc.) based on the presented card number. If the presented card number is not approved (rejected) (step S214; NO), the process of step S214 is performed.

(Step S214) The POS 220 transmits the rejected card number to the verification device 3. The verification device 3 registers the rejected card number in the management means 310, and prevents the same card number from being presented again in the same transaction. After the process in step S214 is performed, the processes in steps S210 to S213 are repeated. Note that when the process of step S210 is performed again, the matching rate of the card number rejected in step S213 may be lowered and then the verification may be performed. Further, if the card number is still rejected even after a certain number of re-verifications, the card number may be re-registered in the management means 310 by the same process as step S111 and step S112. After the process in step S214 is performed, the process in step S202 may be performed.

As explained above, the card management system 1 according to the present embodiment stores the card number uniquely assigned to the card C and the first data D10 related to the acquisition error of recorded information (magnetic information) recorded on the card C. A management means 310 that associates and manages the unique data D contained in the target card C, and a management means 310 that acquires the recorded information recorded on the target card C by an electromagnetic method, and when an acquisition error of the recorded information occurs, a first A magnetic card reader 210 that acquires unique data D including data D10, and unique data D that is managed by a management means 310 when an error in acquiring recorded information occurs in the magnetic card reader 210, and that is acquired by the magnetic card reader 210. and a verification means 320 that identifies the card number of the target card C by verifying the unique data D that has been received.

According to this configuration, it is possible to reduce the effort required for transactions using a card C that is difficult to read by the magnetic card reader 210 due to deterioration of magnetism, scratches, cracks, or other physical damage. More specifically, it is possible to prevent repeated reading failures each time a transaction is made or to manually enter a card number each time a transaction is made.

<Verification with redundancy>
Note that in step S210 described above, the matching means 320 may perform matching with redundancy. The importance of matching with redundancy will be explained below.

As described above, the portion of the waveform data D11 whose amplitude is below the lower limit L is not decoded by the CPU 211 (see FIG. 2B). However, for example, due to variations in the output of the magnetic head 214, the decoding result (decoded data D12) may vary near the lower limit L even for the same card C. Furthermore, the decoding result of the card C may vary due to factors such as variations in the decoding sensitivity and conversion accuracy of the CPU 211 or variations in the operation speed of the card C with respect to the magnetic head 214. More specifically, as shown in FIG. 5A, in the decoded data D12, there are fluctuations such as an increase in numbers (digits) (code D12a), disappearance of numbers (code D12b), or changes in numbers (code D12c). may occur.

Therefore, when the collation means 320 collates the decoded data D12, it is desirable that the collation does not require that the decoded data D12 completely match. For example, the sequence of numbers in the decrypted data D12 (order of arrangement) is the same, the matching rate of the number strings that make up the decoded data D12 is a certain value or more, or both of these are requirements for verification. is desirable.

Furthermore, the waveform data D11 may vary depending on the operating speed of the card C with respect to the magnetic head 214. More specifically, as shown in FIG. 5B, when the operation speed of the card C with respect to the magnetic head 214 is increased (symbol D11f), the amplitude of the waveform data D11 increases and the length (period) of the waveform data D11 becomes shorter. Become. On the other hand, when the operating speed of the card C with respect to the magnetic head 214 is slowed down (symbol D11s), the amplitude of the waveform data D11 decreases and the length (period) of the waveform data D11 increases.

Therefore, when the matching means 320 matches the waveform data D11, it is desirable that the matching does not require that the waveform data D11 completely match. For example, the matching means 320 may expand or contract the waveform data D11 and then match the waveform data D11, or may set the matching rate of the waveform data D11 to be equal to or higher than a certain value as a requirement for matching, or apply both of these methods. It is desirable to carry out a matching process.

Further, the second data D20 may vary depending on the operating speed of the card C with respect to the image scanner 213. More specifically, as shown in FIG. 5C, when the operating speed of the card C with respect to the image scanner 213 is increased (symbol D20f), the second data D20 shrinks in the long side direction of the card C. On the other hand, when the operating speed of the card C with respect to the image scanner 213 is slowed down (symbol D20s), the second data D20 expands in the long side direction of the card C.

Therefore, when the matching means 320 matches the second data D20, it is preferable not to require that the second data D20 completely match. For example, the collation means 320 expands and contracts the second data D20 and then collates the second data D20, or sets the matching rate of the second data D20 to be equal to or higher than a certain value as a requirement for collation, or performs these operations. It is desirable to perform verification using both methods.

<Modified example>
In the above embodiment, the management means 310 managed both the first data D10 and the second data D20, but the management means 310 may manage only the first data D10. In this case, the collation means 320 may identify the card number of the target card C by collating only the first data D10.

Furthermore, in the above embodiment, the unique data D generated each time the reading is performed is recorded in the recording unit 212, but the unique data D generated each time the reading is performed may be recorded in the POS 220. In this case, the POS 220 does not need to notify the magnetic card reader 210 of the start of the transaction. The magnetic card reader 210 may output the unique data D to the POS 220 every time it is read. When the customer or employee instructs the POS 220 to finish reading, the POS 220 may transmit the manually input card number and the unique data D corresponding to the number of readings recorded in the POS 220 to the verification device 3.

Further, in the decoded data D12 according to the embodiment described above, sections that could not be decoded out of the waveform data D11 obtained from the card C are deleted, but the structure of the decoded data D12 is not limited to this. As shown in FIG. 6, the decoded data D12 may include (hold) a section of the waveform data D11 that could not be decoded as a no-signal section NS. In other words, the decoded data D12 may include information obtained by measuring the time of a section of the waveform data D11 that could not be decoded. According to this configuration, it is possible to generate decoded data D12 that is closer to the actual situation, and it is possible to improve the accuracy of verification by the verification means 320.

<Minimum configuration example>
Here, an example of the minimum configuration of the card management system will be explained.
FIG. 7 is a diagram showing an example of the minimum configuration of a card management system according to an embodiment of the present invention. As shown in FIG. 7, the card management system 1A includes a management means 310A, a verification means 320A, and an acquisition means 210A. The management means 310A manages the card number uniquely assigned to the card C and the unique data D including the first data D10 related to the acquisition error of the recorded information recorded on the card C in association with each other. The acquisition means 210A acquires the recorded information recorded on the target card C by an electromagnetic method, and when an acquisition error of the recorded information occurs, acquires the unique data D including the first data D10 related to the acquisition error. When an error occurs in the acquisition of recorded information in the acquisition means 210A, the collation means 320A collates the unique data D managed by the management means 310A with the unique data D acquired by the acquisition means 210A, and selects the target card C. Identify the card number.

1, 1A...Card management system 2...Terminal device 3...Verification device 210...Magnetic card reader (acquisition means) 210A...Acquisition means 220...POS (transmission means) 310...Management means 320...Verification means

Claims (9)

When an error occurs in acquiring recorded information recorded on a card, a card number uniquely assigned to the card and unique data including first data related to the error in acquiring recorded information are linked and managed. management means and
After the unique data is recorded in the management means, the recorded information recorded on the target card is acquired by an electromagnetic method, and when an acquisition error of the recorded information occurs, first data related to the acquisition error is included. an acquisition means for acquiring unique data;
If an error in acquiring the recorded information occurs in the acquisition means after the unique data is recorded in the management means, the unique data managed by the management means and the unique data acquired by the acquisition means a verification means for identifying the card number of the target card;
A card management system equipped with The first data includes waveform data indicating a waveform of a signal obtained from the card by an electromagnetic method;
decoded data obtained by decoding a signal obtained from the card by an electromagnetic method;
The card management system according to claim 1, comprising: 3. The card management system according to claim 2, wherein the decoded data includes, as a no-signal interval, an interval in which the signal obtained from the card by an electromagnetic method cannot be decoded. The unique data managed by the management means further includes second data indicating the appearance of the card,
The unique data acquired by the acquisition means further includes second data indicating the appearance of the target card.
The card management system according to any one of claims 1 to 3. The card management system according to claim 4, wherein the second data is image data obtained from the card by an optical method. 6. The method according to claim 1, wherein the collation means performs redundant collation when collating the unique data managed by the management means and the unique data acquired by the acquisition means. The card management system according to any one of the items. When an error occurs in acquiring recorded information recorded on a card, a card number uniquely assigned to the card and unique data including first data related to the error in acquiring recorded information are linked and managed. management means and
If an acquisition error occurs in the acquisition means that acquires the recorded information recorded on the target card by an electromagnetic method after the unique data is recorded in the management means, the unique data managed by the management means and , a collation means for identifying the card number of the target card by collating unique data including first data related to an acquisition error of the recorded information recorded on the target card acquired by the acquisition means;
A verification device comprising: Obtaining the recorded information recorded on the target card by an electromagnetic method, and when an acquisition error occurs, acquiring unique data including first data related to the acquisition error of the recorded information recorded on the target card. means and
When an error in acquiring the recorded information occurs, a verification device that uses the input card number and the unique data acquired by the acquisition means to identify the card number of the target card using the unique data. a transmission means for transmitting to;
A terminal device equipped with. If an error occurs in acquiring the recorded information recorded on the target card by an electromagnetic method, unique data including a card number uniquely attached to the target card and first data related to the error in acquiring the recorded information; The first step is to send the
a second step of linking and managing the card number transmitted in the first step and the unique data;
After the second step, if an error occurs in obtaining the recorded information recorded on the target card by an electromagnetic method, a third step of transmitting the unique data related to the target card;
After the second step, a fourth step of comparing the unique data managed in the second step with the unique data transmitted in the third step and identifying the card number of the target card. and,
A card management method comprising:

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