JP2008065619A - Settlement terminal equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a settlement processing method for necessarily recording transaction details when there is possibility that a use sum has been subtracted from an IC card even when settlement processing has been interrupted in settlement terminal equipment in a prepaid type electronic money system. <P>SOLUTION: The settlement terminal equipment is provided with: a storage part for storing a flag showing the circumstances of settlement processing; and a main control part and a counterpart card communication control part. The main control part and counterpart card communication control part change the flag according to the progress of each processing to thereby record the status of the settlement processing. In the settlement processing, temporary details, the theoretical value of the settlement result as a settlement result, and formal transaction details are stored in the storage part. In restoration of the settlement terminal equipment after the interruption of the settlement processing, when it is determined that interruption has occurred in a timing that matching between the settlement result of the IC card and transaction details in the settlement terminal equipment is not acquired by referring to the flag, suitable transaction details are generated from the temporary details, the settlement result, and the theoretical value of the settlement result stored in the storage part, and stored in the storage part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a payment terminal apparatus for prepaid electronic money, and more specifically, a payment terminal apparatus capable of recovering with the consistency of transaction details when the apparatus recovers even when the payment processing is interrupted. About.

In recent years, electronic money has been recognized as a social infrastructure.
Prepaid electronic money that records the remaining amount data representing the monetary value on an IC card and links the remaining amount data in conjunction with payment at a store or withdrawal from a bank account is rapidly spreading. Yes.

FIG. 8 shows the configuration of a prepaid electronic money system.
Payment processing is performed between the contactless IC card 4 on which electronic money is recorded and the payment terminal device 1, and the payment terminal device 1 is connected via a network 6 to a center server 5 owned by the IC card business. is doing.

  The non-contact IC card 4 corresponds to a card-type card equipped with an IC chip or a portable terminal such as a mobile phone equipped with an IC chip. The contactless IC card 4 is charged with cash converted to electronic money at an electronic money charge terminal, or connected to a bank account from an electronic money charge terminal connected to the Internet or a mobile terminal connected to the Internet by wireless communication or the like. Electronic money is charged.

  When the user pays with the contactless IC card 4, when the payment terminal device 1 is read by the payment terminal device 1, the payment terminal device 1 pays from the amount of electronic money recorded in the contactless IC card 4. The corresponding usage amount is subtracted, and the balance is overwritten on the non-contact IC card 4.

  The settlement terminal device 1 in such an electronic money system is composed of a master station 2 that is a host controller and a slave station 3 that is a card control unit. Further, as shown in FIG. 8, the hardware configuration of the slave station 3 includes a communication control unit (vs. main station) 3-1, a communication control unit (vs. center) 3-2, a main control unit 3-3, and a storage device 3. -4, a communication control unit (for card) 3-5, and a card read / write (R / W) unit 3-6. The communication control unit (vs. main station) 3-1, the communication control unit (vs. center) 3-2, and the card R / W unit 3-6 are communication hardware for communicating with the other party. The main control unit 3-3 and the communication control unit (for card) 3-5 read a program recorded in a ROM (Read Only Memory) or the like (not shown) and execute control using a memory area (not shown). Part. Information such as transaction details is stored in the storage device 3-4 and is periodically transmitted to the center server 5.

FIG. 9 shows a flow at the time of payment processing in the slave station 3 in the payment terminal device 1 of the electronic money system shown in FIG.
First, in S50 and S51, the processing of the main control unit 3-3 and the communication control unit (to the card) 3-5 is started, and in S52, the user puts the non-contact IC card 4 on the settlement terminal device 1, touch. Start the presentation operation such as.

  In S53, the main control unit 3-3 generates a settlement condition, and transmits a settlement instruction to the communication control unit (for card) 3-5 in S54. In S55, the communication control unit (to the card) 3-5 receives the settlement instruction transmitted from the main control unit 3-3, and captures the card and reads the card information in S56 and S57. Based on the card information read in S58, processing such as subtracting the usage amount is performed, information to be newly written is generated, and information is written on the card. Then, in S59, the settlement result is transmitted to the main control unit 3-3, and in S61, the communication control unit (for card) 3-5 ends the process.

  When the main control unit 3-3 receives the settlement result from the communication control unit (to card) 3-5 in S62, the main control unit 3-3 generates a transaction detail in S63, stores it in the storage device 3-4 in S64, and simultaneously stores the transaction result. The information is displayed on the display unit of the settlement terminal device 1 or printed using the printing unit, and the process ends in S65. When this series of payment processing is completed, the store clerk or the like provides goods or services to the user.

In the writing process to the IC card, when the state written to the IC card is unknown, the writing process to the IC card is retried (finite time) until the writing is correctly completed. However, writing may not be completed within the retry processing time due to a hardware failure or a user's IC card presentation method. In such a case, it is common that the transaction between the store clerk and the user is “nothing”, and the store clerk does not give the product or the like to the user. However, there is a possibility that the usage amount is actually deducted from the user's IC card, and if it is actually deducted, it becomes a complaint (complaint) from the user and needs to be refunded. This refunding work is performed by the IC card company because no transaction has been established at the store. At this time, in order to specify the transaction for refund, an unclear statement to the IC card is required. Therefore, the settlement terminal device 1 records the transaction details that are not written to the IC card together with the normal transaction details as the official transaction details, and periodically transmits them to the center server 5 owned by the IC card business operator. It is configured.
JP 2002-366862 A

  By the way, in FIG. 9, before the settlement result is received by the main control unit 3-3 (S62), and the transaction details are generated and stored (S63, S64), the power of the settlement terminal device 1 is turned off. If the payment process is interrupted, the transaction details will not be saved, and depending on the processing disconnection timing, the details will not be saved even if the usage amount is deducted from the user's IC card, or the product cannot be delivered A situation will occur.

  That is, in the slave station which is the card control unit of the payment terminal device, the power is turned off at a critical timing such as during the IC card writing process or until the main control unit receives the payment result after the completion of the IC card writing. When an unintentional settlement process is forcibly interrupted, the settlement terminal device goes down without saving any details of normal details and details that are unknown to the IC card. Accordingly, there is no record of whether or not the transaction itself has been performed in the payment terminal device, and various inconveniences have occurred in the recovery of the payment terminal device or the handling of complaints from users.

  From the above, in the case where payment processing is interrupted in the payment terminal device, the payment processing method for storing the transaction details whenever there is a possibility that the usage amount has been subtracted from the IC card, and the payment terminal device When there is an inconsistency between the settlement result of the IC card and the transaction details in the card control unit in the settlement terminal device at the time of restoration, there is a need for a restoration method that restores the consistency.

  Accordingly, an object of the present invention is a payment terminal device in a prepaid electronic money system, and records transaction details whenever there is a possibility that the usage amount has been deducted from an IC card even when payment processing is interrupted. A settlement terminal device that can be restored with a consistency between the settlement result of the IC card and the transaction details in the card control unit in the settlement terminal device after the settlement process and settlement processing for It is to provide.

To solve the problems described above, the slave station is card control unit in the settlement terminal device prepaid electronic money in the present invention, provided a storage area for storing a flag indicating the status of the payment processing in the storage unit of the driven station, The main control unit and the card communication control unit each change the flag according to the progress of the process to record to what state the settlement process is completed. In addition, provisional details generated based on the payment instruction from the main station, the theoretical value of the payment result generated before writing to the IC card, the payment result that is information written to the IC card, Detailed transaction details are stored in the storage unit. Then, when the payment terminal device recovers after the payment processing is interrupted, the flag is referred to, and the interruption is stopped at a timing when consistency between the IC card payment result and the transaction details in the payment terminal device cannot be obtained. When it is determined that the transaction has occurred, a suitable transaction description is generated from the provisional specification stored in the storage unit, the settlement result, the theoretical value of the settlement result, etc., and stored in the storage unit.

  As a result, when the payment terminal device recovers after the payment processing is interrupted, it is possible to detect the timing at which the interruption has occurred, and thereby, between the payment result of the IC card and the transaction details in the payment terminal device. When it is determined that consistency is not achieved, a suitable transaction statement can be generated and stored in the storage unit. In other words, even when the transaction details have been lost due to the interruption of the settlement process, it is possible to reliably leave the transaction details.

  According to one aspect of the present invention, there is provided a card control unit that is used in a payment terminal device of a prepaid electronic money system, and includes a main control unit, a card communication control unit, and a storage unit that stores data. When receiving a payment instruction from the host controller, the main control unit generates a payment condition, generates a provisional specification based on the payment condition, stores it in the storage unit, and transmits a payment instruction to the card communication control unit. The first transaction status flag reading / writing for changing the transaction status flag indicating the status of the settlement process stored in a predetermined storage area of the specification generation means and the storage unit in accordance with the timing of its own processing Receiving the payment result from the card communication control unit, generating a formal transaction description based on the payment result, and storing the formal specification in the storage unit; Characterized in that it comprises. Still further, upon receiving a payment instruction from the main control unit, the card-to-card communication control unit captures an IC card to be settled, reads the card information from the IC card, and sets the payment result from the read card information. The settlement result theoretical value generation means for generating the theoretical value of the transaction and the transaction status flag indicating the status of the settlement process stored in a predetermined storage area of the storage unit, A second transaction status flag reading / writing unit that changes in accordance with the timing of the transaction, and a settlement for storing the actual settlement result written in the IC card in the storage unit and transmitting the settlement result to the main control unit And a result generating means. Thereby, in the payment terminal device of the present invention, after the payment process is interrupted, it is possible to detect the timing when the interruption has occurred by referring to the transaction status flag. When it is determined that consistency with the transaction details in the terminal device is not achieved, a suitable transaction details can be generated and stored in the storage unit. Therefore, it is possible to reliably leave the transaction details even when the transaction details have been lost due to the interruption of the settlement process.

  According to the present invention, even when the payment process performed between the payment terminal device and the IC card is interrupted, the storage unit of the payment terminal device always stores transactions such as provisional details, theoretical values of payment results, payment results, and the like. The thing that becomes the trace of is stored. In addition, after the settlement process is interrupted, when the settlement terminal device is restored, it is possible to detect the timing at which the suspension occurred, whereby consistency between the settlement result of the IC card and the transaction details of the settlement terminal device can be detected. It is possible to determine whether the process has progressed to the point where If it is determined that consistency is not achieved, formal transaction details can be generated from the provisional details stored in the storage unit, theoretical values of settlement results, settlement results, etc., and stored in the storage unit It is.

  Therefore, even if the transaction details have been lost in the past when an unintended settlement process was forcibly interrupted, such as when the payment terminal device was turned off, it is possible to reliably leave the transaction details in the payment terminal device. It became.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a functional block diagram in a slave station 3 which is a card control unit of a payment terminal device 1 which is an embodiment of the present invention. FIG. 1 shows only the slave 3 part of FIG. 8, and the same parts as those in FIG. FIG. 8 shows the hardware configuration, but the inside of the main control unit 11 and the communication control unit (to card) 13 in FIG. 1 has functions realized by cooperation of software and hardware. They are shown together for explanation.

  The slave station 3 includes a communication control unit (vs. master station) 3-1 that is a part that communicates with the master station 2, and a communication control unit (vs. center) 3-2 that is a part that communicates with the center server 5. The main control unit 11, the storage unit 12, and the communication control unit (counter card) 13.

The main control unit 11 includes a provisional detail generation unit 111, a transaction status flag reading / writing (R / W) unit 112, a formal specification generation unit 113, and a transmission / reception unit 114.
The provisional detail generation unit 111 generates a settlement condition when receiving a settlement instruction from the master station 2 which is a host controller, generates a provisional detail based on the settlement condition, stores it in the storage unit 12, and simultaneously transmits a communication control unit ( The payment instruction is transmitted to the card 13).

The transaction status flag R / W unit 112 updates the transaction status flag indicating the status of the settlement process stored in a predetermined storage area of the storage unit 12 according to the progress of the process.
When receiving the settlement result actually written on the non-contact IC card 4 from the communication control unit (counter card) 13, the formal specification generation unit 113 generates a formal transaction detail based on the settlement result, and the storage unit 12. To store.

  The transmission / reception unit 114 transmits the settlement instruction from the main control unit 11 to the communication control unit (to the card) 13 or receives the settlement result transmitted from the communication control unit (to the card) 13. This is a part for exchanging commands.

  Further, the communication control unit (vs. card) 13 includes a settlement result theoretical value generation unit 131, a transaction status flag reading / writing (R / W) unit 132, a settlement result generation unit 133, and a card reading / writing. (R / W) unit 134 and transmission / reception unit 135 are included.

  When receiving the payment instruction from the main control unit 11, the theoretical value generation unit 131 for the payment result captures the contactless IC card 4 that is the object of payment, reads the card information, and uses the read card information and the payment instruction. The theoretical value of the settlement result is calculated and stored in the storage unit 12.

The transaction status flag R / W unit 132 updates a transaction status flag indicating the status of the settlement process prepared in a predetermined storage area of the storage unit 12 according to the progress of the process.
The settlement result generation unit 133 stores the actual settlement result written in the non-contact IC card 4 in the storage unit 12 and transmits the settlement result to the main control unit 11.

The card R / W control unit 134 is a part that performs control of reading information from the non-contact IC card 4 and writing information to the non-contact IC card 4 via the card R / W unit 3-6.
The transmission / reception unit 135 receives a settlement instruction transmitted from the main control unit 11, transmits a settlement result from the communication control unit (for card) 13 to the main control unit 11, etc. This is the part that communicates.

Further, the storage unit 12 is as shown in FIG. 2, and stores the following areas for storing data.
Description will be made in order from the top of FIG.

  First, a “transaction status flag” is an area in which a flag indicating a transaction status of the settlement process is stored. There are four flag states: “transaction start”, “card capture complete”, “card write complete”, and “transaction complete”.

  Next, “payment result” is an area where the payment result actually written to the non-contact IC card 4 is written, and is written by the payment result generation unit 133. The “payment result” includes a “card ID” that is a customer identification number of the contactless IC card 4, a “post-transaction card balance” after completion of the payment process, and a “post-transaction card serial number” that is a transaction number of the card. .

  The “settlement result theoretical value” is an area that is calculated and written by the settlement result theoretical value generation unit 131 before being written to the non-contact IC card 4. The “theoretical value of the settlement result” is the card ID that is the customer identification number of the non-contact IC card 4, the “scheduled post-transaction card balance” that is the post-transaction planned card balance, and the post-transaction planned card transaction serial number. Consists of "scheduled post-transaction card transaction serial number".

  Next, “provisional transaction details” is an area in which provisional details generated by the provisional specification generation unit 111 are stored. This area is reserved for only one record of transaction details, and is an area that is updated as needed with the contents of the transaction currently being processed. Details of the transaction details will be described later with reference to FIG.

  Next, “transaction details” is an area where formal transaction details are stored. Details are stored in time series in an area where transaction details for several thousand records can be stored. In the “description of transaction” area, not only the details when the processing is normally performed but also the details that are not written to the non-contact IC card 4 are stored. This “description of transaction” area portion is transmitted to the center server 5 owned by the non-contact IC card business. Details of each transaction will be described later with reference to FIG.

  FIG. 3 shows a detailed data structure for one record of the transaction details. The contents of the data include a “master station transaction number” that is a transaction number notified from the master station 2, a “slave station transaction number” that is a transaction number managed by the slave station 3, and a “transaction date and time that indicates the date and time when the transaction was performed. ”, The amount used in the transaction,“ transaction amount ”that is the settlement amount notified from the main station 2,“ card ID ”that is the customer identification number,“ card balance after transaction ”that is the card balance after the card is written, "Post-transaction card number", which is the transaction number after the transaction, managed by the card, details by normal processing (successful writing to the card), or whether writing to the card is successful It consists of a “detail type” indicating whether the details are unknown.

The configuration of the settlement terminal device according to the embodiment of the present invention is shown in FIGS.
Next, the settlement processing flow in the embodiment of the present invention will be described with reference to FIG.
First, the main control unit 11 starts processing in S1, the communication control unit (counter card) 13 starts processing in S2, and the user starts the presenting operation of the non-contact IC card 4 in S3.

The main control unit 11 receives a settlement instruction from the main station 2 in S4, the provisional detail generation unit 111 determines settlement conditions based on the instruction, and further generates a provisional transaction detail based on the settlement conditions (S5). The data is stored in the storage unit 12 (S6).
An example of payment condition data is shown in FIG. The settlement condition includes a master station transaction number, a slave station transaction number, a transaction date and time, and a transaction amount. In the data example of FIG. 5A, “0005”, “0003”, and “20060111336325” (January 13, 2006), respectively. 20:36:25), “3980” (the transaction amount is 3980 yen).

  Further, an example of provisional data is shown in FIG. The provisional details consist of a master transaction number, a slave transaction number, transaction date and time, transaction amount, card IC, post-transaction card balance, post-transaction card transaction number, and item type. FIG. ) Shows an example of data generated based on the settlement condition. That is, the master transaction serial number, the slave transaction serial number, the transaction date and time, and the transaction amount are the same as the settlement conditions, and the card ID, post-transaction card balance, and post-transaction card transaction serial number are temporarily generated as data 0. Further, the type of specification is a value indicating a write-unknown detail indicating that it is unclear whether or not writing to the non-contact IC card 4 has been performed.

Next, in S7, the transaction status flag R / W unit 112 updates the value of the transaction status flag storage area of the storage unit 12 to a value indicating the “transaction start” state.
In S8, a settlement instruction is transmitted from the main control unit 11 to the communication control unit (to card) 13.

In S <b> 9, the transmission / reception unit 135 of the communication control unit (to-card) 13 receives the settlement instruction, and the card R / W control unit 134 performs the capturing process for the non-contact IC card 4. When captured, the card information of the non-contact IC card 4 is read (S10). FIG. 5C shows an example of card information data. The card information includes a card ID, which is a customer identification number, a card balance, and a card transaction serial number, which are “12345678890123456”, “26910”, and “0364”, respectively, as data examples.

Next, in S 12, the settlement result theoretical value generation unit 131 uses the settlement conditions instructed from the main control unit 11 and the card information read from the contactless IC card 4 to store the card of the contactless IC card 4 after settlement. The information is theoretically calculated, and in S13, it is stored in the area for storing the theoretical value of the settlement result in the storage unit 12 as the theoretical value of the settlement result. FIG. 5D shows a data example of the theoretical value of the settlement result. The theoretical value of the settlement result includes a card ID, a post-transaction card balance, and a post-transaction card transaction serial number. The card ID is a copy of the card ID of the card information in FIG. 5C, and the post-transaction card balance is obtained by subtracting the transaction amount of the settlement condition from the card balance of the read card information. Is obtained by incrementing the read card transaction serial number by one. That is,
Post-transaction card balance = (read) card balance-transaction amount Post-transaction card transaction serial number = (read) card transaction serial number + 1
It is. The data example shows the theoretical value of the settlement result generated based on FIG. 5 (a) and FIG. 5 (c), the post-transaction card balance is 22930 (= 26910-3980), and the post-transaction card transaction serial number is , 0365 (= 0364 + 1).

  Then, in S14, the transaction status flag R / W unit 132 in the communication control unit (to the card) 13 updates the value of the transaction status flag storage area of the storage unit 12 to a value indicating the “card capture complete” state. .

  Next, in S15, the card R / W control unit 134 actually deducts the transaction amount from the non-contact IC card 4 via the card R / W unit 3-6, and in S16, the settlement result generation unit 133 displays the actual settlement result. The result is stored in an area for storing the settlement result in the storage unit 12. FIG. 5E shows an example of payment result data.

  In S <b> 17, the transaction status flag R / W unit 132 updates the value of the transaction status flag storage area of the storage unit 12 to a value indicating the “card writing complete” state. Then, in S18, the settlement result is transmitted from the communication control unit (to the card) 13 to the main control unit 11. The communication control unit (for card) 13 ends the process in S19.

  In step S21, the main control unit 11 receives the settlement result. In step S22, the formal specification generation unit 113 generates a formal specification from the contents, and in step S23, stores the formal transaction details in the storage unit 12. Store. FIG. 5F shows an example of formal transaction details. That is, the formal transaction details are obtained by combining the settlement conditions of FIG. 5A and the settlement results of FIG. 5E, and further adding a detail type. Here, since the detail type is a detail in which the transaction is normally completed, it is a value indicating a normal detail.

  In S24, the transaction status flag R / W unit 112 updates the value of the transaction status flag storage area of the storage unit 12 to a value indicating the “transaction complete” state. As a result, the series of payment processing ends (S25).

  As described above, the flow of the settlement process in the embodiment of the present invention has been described, but a case where the process is interrupted due to power-off or the like during the settlement process will be considered. Consideration will be divided into cases where an interruption occurs within the times (1), (2) and (3) shown in FIG.

  First, even if the processing is interrupted at any timing within the period (1), the usage amount is not deducted from the non-contact IC card 4 and the usage amount is not collected.

  If the process is interrupted at the timing of (2), it is unclear whether or not the usage deduction processing from the contactless IC card 4 has been completed, and even if the writing is completed, a formal transaction statement is created. Inconsistency occurs between the IC card balance and the transaction details stored in the storage unit 12.

  In the process interruption at the timing in the period of (3), the deduction processing of the usage amount from the non-contact IC card 4 is completed, but the transaction details are not generated and stored in the IC card balance and the storage unit 12. There is a discrepancy with the transaction details.

  As described above, there is a possibility that inconsistency occurs between the IC card balance and the transaction details stored in the storage unit 12 due to the interruption of the settlement process. Next, all of the above (1) to (3) A recovery flow of the settlement terminal device 1 of the present invention corresponding to the case will be described.

FIG. 7 shows a flow of restoration processing in the embodiment of the present invention.
First, the starting process of the main control unit 11 is started in S30. In S31, the transaction status flag R / W unit 112 reads the value of the transaction status flag storage area of the storage unit 12. If the value of the flag is “transaction complete”, it is determined that an interruption has occurred in a state in which the payment process is normally completed, and the process is terminated without performing anything (S40).

  If the flag value is not “transaction complete” in S31, the process proceeds to S33, and it is further determined whether or not the flag value is “card writing complete”. If the value of the flag is “card writing complete”, it indicates that the settlement process has been interrupted before the transaction details are stored in the storage unit 12 after the card writing processing. Do. That is, the formal specification generation unit 113 reads the data stored in the settlement result area of the storage unit 12 in S34, reads the data stored in the temporary specification area of the storage unit 12 in S37, and combines them in S38. Transaction details are generated and stored in the storage unit 12. At this time, the detail type is a value indicating a detail in which writing is normally performed. Thereafter, in S39, the transaction status flag R / W unit 112 updates the value of the transaction status flag storage area of the storage unit 12 to a value indicating the “transaction complete” state, and activates 1.

  If the flag value is not “card writing complete” in S33, the process proceeds to S35, and it is further determined whether or not the flag value is “card capture complete”. In the case of “card capture complete”, it indicates that the settlement process has been interrupted after the card is captured and before the writing to the non-contact IC card 4 is performed. The formal specification generation unit 113 reads the data stored in the theoretical value area of the settlement result of the storage unit 12 in S36, further reads the data stored in the temporary specification region of the storage unit 12 in S37, and combines them in S38. The transaction details are generated and stored in the storage unit 12. At this time, since it is unclear whether or not the writing has been normally performed on the card, the item type is set to a value indicating the item with unknown writing. Thereafter, in S39, the transaction status flag R / W unit 112 updates the value of the transaction status flag storage area of the storage unit 12 to a value indicating the “transaction complete” state, and activates the payment terminal device 1.

  If the flag value is not “card capture complete” in S35, it means that the flag value is “start of transaction”, which means that the settlement process was interrupted before the card capture. In order to show this, before the transaction process, the detail generation / storage process is not performed, and in S39, the transaction status flag R / W unit 112 sets the value of the transaction status flag storage area of the storage unit 12 to the “transaction complete” state. The settlement terminal device 1 is activated by updating to the indicated value.

  As described above, if the payment terminal device 1 is restored as shown in FIG. 7 and there is a possibility that the usage amount has been deducted from the non-contact IC card 4, the transaction details are always recorded and restarted. It is possible.

In the above, with reference to FIGS. 1-7, the payment terminal device which is an Example of this invention was demonstrated in detail.
According to the present invention, it is possible to detect the timing when the interruption occurs when the payment terminal device is restored after the interruption of the payment processing, whereby the payment result of the IC card and the transaction details in the payment terminal device can be detected. If it is determined that there is no consistency between them, a suitable transaction description can be generated and stored in the storage unit. In other words, even when the transaction details have been lost due to the interruption of the settlement process, it is possible to reliably leave the transaction details.

  As described above, the settlement terminal device of the present invention has been described in detail. However, the present invention is not limited to the above description, and various other configurations or shapes are possible without departing from the spirit of the present invention. Needless to say, you can make.

It is a figure which shows the functional block diagram of the slave station which is an Example of this invention. It is a figure which shows the data structure of a memory | storage part. It is a figure which shows the detailed data structure of transaction details. It is a figure which shows the payment processing flow in the Example of this invention. (A) is a figure which shows the example of data of payment conditions, (b) is a figure which shows the example of data of provisional details, (c) is a figure which shows the example of data of card information, (d) is a figure in payment. It is a figure which shows the example of data of the theoretical value of a result, (e) is a figure which shows the example of data of a payment result, (f) is a figure which shows the example of data of formal transaction details. It is a figure which shows the table | surface which considers the interruption of a payment process, and each state. It is a figure which shows the restoration processing flow in the Example of this invention. It is a figure which shows the structural example of the electronic money system of a prepaid system. It is a figure which shows the payment processing flow in the electronic money system of FIG.

Explanation of symbols

1 Payment terminal device 2 Master station (high-order controller)
3 Slave station (card control unit)
4 Non-contact IC card 5 Center server 6 Network 3-1 Communication control unit (to main station)
3-2 Communication control unit (to center)
3-3 Main control unit 3-4 Storage device 3-5 Communication control unit (for card)
3-6 Card R / W
11 Main Control Unit 12 Storage Unit 13 Communication Control Unit (for Card)
111 Provisional Detail Generation Unit 112 Transaction Status Flag R / W Unit 113 Formal Detail Generation Unit 114 Transmission / Reception Unit (Main Control Unit)
131 Settlement result theoretical value generating unit 132 Transaction status flag R / W unit 133 Settlement result generating unit 134 Card R / W control unit 135 Transmission / reception unit (for card communication control unit)

Claims (9)

A card control unit used in a payment terminal device of a prepaid electronic money system, comprising a main control unit, a card communication control unit, and a storage unit for storing data,
The main control unit
Temporary settlement generation means for generating a settlement condition upon receiving a settlement instruction from the host controller, generating a provisional detail based on the settlement condition and storing it in the storage unit, and transmitting a settlement instruction to the card communication control unit;
A first transaction status flag reading / writing means for changing a transaction status flag indicating a status of a settlement process, which is stored in a predetermined storage area of the storage unit, in accordance with a timing of its own processing;
Upon receiving the settlement result from the card-communication control unit, a formal transaction detail is generated based on the settlement result and stored in the storage unit;
A card control unit comprising: The card communication control unit
Upon receiving a payment instruction from the main control unit, the IC card to be settled is captured, the card information is read from the IC card, a theoretical value of the payment result is generated from the read card information, and stored in the storage unit A settlement result theoretical value generation means for storing;
A second transaction status flag reading / writing means for changing a transaction status flag indicating the status of the settlement process stored in a predetermined storage area of the storage unit in accordance with the timing of its own processing;
Payment result generation means for storing the actual payment result written in the IC card in the storage unit and transmitting the payment result to the main control unit;
The card control unit according to claim 1, further comprising:   Further, the formal specification generating means detects the timing at which the payment processing is interrupted by referring to a flag indicating the status of the payment processing at the time of the recovery processing after the payment processing is interrupted, If it is determined that the processing has been interrupted at a timing when the settlement result written in the IC card and the transaction details recorded in the storage unit do not match, the provisional specification stored in the storage unit or the settlement result The card control unit according to claim 1, wherein transaction details are generated from a theoretical value or the settlement result and stored in the storage unit. In a prepaid electronic money system, a payment terminal device that reads the electronic money from an IC card in which electronic money is recorded, and subtracts the usage amount to write to the IC card,
A payment terminal apparatus comprising payment status recording means for recording information indicating a payment status at the time of payment processing.   When the payment processing is interrupted and then the payment terminal device recovers, the information indicating the recorded payment status is referred to, and it is determined that the interruption has occurred before the appropriate transaction details are recorded in the payment terminal device. In the case where the payment is made, it further comprises formal specification generation means for generating an appropriate transaction specification based on the provisional specification recorded at the time of the payment processing or the payment result written in the IC card. Item 5. A settlement terminal device according to item 4.   The information indicating the payment status is information indicating a transaction start status, a status before data writing to the IC card, and a status after data writing to the IC card as the payment status. Payment terminal device. A processing method of a payment terminal device that reads electronic money from an IC card in which prepaid electronic money is recorded, writes the money to the IC card after subtracting the amount of money to be used,
Determining whether or not an interruption has occurred before an appropriate transaction details are recorded in the storage unit of the payment terminal device with reference to information indicating a timing at which the interruption of the payment process has occurred;
When it is determined that an interruption has occurred before the appropriate transaction details are recorded, the provisional details recorded in the storage unit of the settlement terminal device during the settlement process, the settlement results written in the IC card, and the Generating an appropriate transaction statement based on the theoretical value of the settlement result before writing to the IC card;
A processing method for a payment terminal device. A processing method of a payment terminal device that reads the electronic money from an IC card in which prepaid electronic money is recorded, and deducts the usage amount and writes it to the IC card,
A transaction that generates a payment condition upon receipt of a payment instruction from the host controller of the payment terminal apparatus, generates a provisional specification based on the payment condition, stores it in the storage unit of the payment terminal apparatus, and indicates a transaction processing status Changing the status flag to a transaction start state;
After the provisional details are generated, the IC card to be settled is captured, the card information is read from the IC card, the theoretical value of the settlement result is generated from the information and stored in the storage unit, and Changing the transaction status flag to the card capture complete state;
Writing a theoretical value of the settlement result to the IC card and storing an actual settlement result in the storage unit; and changing the transaction status flag to a card writing completion state;
After writing the theoretical value of the settlement result to the IC card, generating a formal transaction statement and storing it in the storage unit;
A processing method for a payment terminal device. After processing interruption, when the payment terminal device is restored,
Referring to the transaction status flag to detect when the process is interrupted;
As a result of the detection, if it is determined that an interruption has occurred before the appropriate transaction details are stored in the storage unit, the provisional specification stored in the storage unit or the theoretical value of the settlement result or the settlement Generating a transaction statement from the result and storing it in the storage unit;
The processing method of the payment terminal device according to claim 8, comprising: