JP2008065620A - Electronic money system and control method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic money system for matching transaction detail information between a main station and a slave station even when processing has been interrupted in the middle of settlement processing in settlement terminal equipment in an post-pay system electronic money system. <P>SOLUTION: In the post-pay system electronic money system configured of the main station and the slave station, in the settlement processing, the slave station generates temporary transaction detail information and stores it in a storage part when writing processing in an IC card has been completed, and stores the temporary transaction detail information as formal detail information into the storage part when the completion of storage of the detail information is notified from the main station. In the restoration processing after the interruption of the settlement processing, the slave station collates whether or not the latest detail information stored in the main station is matched with the latest detail information stored in its own station, and when mismatching is detected, the slave station restores the prestored temporary detail information as formal detail information. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electronic money system, and more particularly to an electronic money system having a function of preventing inconsistencies in specifications between a master station and a slave station in the system when payment processing is interrupted.

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.

On the other hand, post-pay electronic money is also showing signs of widespread use.
FIG. 6 shows the configuration of a post-pay electronic money system.
The system is configured by connecting a center server 5 and a payment terminal device 1 held by an IC card provider to a network 6. However, the center server 5 and the payment terminal device 1 are not always connected.

  When the user pays with the IC card 4, when the IC card 4 is read by the payment terminal device 1, the payment terminal device 1 writes the billing information to the IC card 4 and simultaneously reads the customer identification information, and the identification Transaction details information corresponding to the information is generated and retained. If there is a point privilege or the like, the point or the like is written to the IC card 4 at this timing. The settlement terminal device 1 transmits a list of transaction details information to be periodically held to the center server 5, and the IC card business operator collects a usage fee, for example, monthly from the user based on the notified details information. Do. The difference from the conventional credit card is that data is exchanged between the payment terminal device 1 and the IC card 4 offline at the time of payment between the payment terminal device 1 and the center server 5. That is, since there is no real-time processing by communication between the center server 5 and the payment terminal device 1 at the time of payment, the time required for processing is overwhelmingly faster than that of a credit card. Also, there is no need to sign a slip. For this reason, it has already begun to be introduced at ticket gates and gas stations where payment speed is required.

  In such an electronic money system, the payment terminal device 1 includes a master station 2 that is a host controller and a slave station 3 that is a card control unit. The master station 2 manages product sales information of each store, and the slave station 3 It is comprised so that the transaction details information of a card may be managed.

  As shown in FIG. 6, the hardware configuration of the settlement terminal device 1 is such that the master station 2 includes a communication control unit (opposite station) 2-1, a master control unit 2-2, and a storage device 2-3. 3 is a communication control unit (vs. main station) 3-1, communication control unit (vs. center) 3-2, main control unit 3-3, storage device 3-4, communication control unit (vs. card) 3-5, card A read / write unit (R / W) 3-6 is configured.

  Communication control unit (opposite station) 2-1, communication control unit (opposite station) 3-1, communication control unit (opposite center) 3-2, communication control unit (opposite card) 3-5 Communication hardware for performing communication. The main control units 2-2 and 3-3 each read a program recorded in a ROM (Read Only Memory) or the like (not shown), and a RAM (Random) based on the program. This is a processor that performs processing using a memory area such as (Access Memory). Further, the storage device 2-3 of the master station 2 and the storage device 3-4 of the slave station 3 store and hold detailed information as sales information and card transaction detailed information, respectively.

FIG. 7 shows a payment processing flow in the electronic money system shown in FIG.
First, when a payment start instruction or the like is input to the payment terminal device 1 by a store clerk such as a store or a convenience store, the processing of the master station 2 and the slave station 3 is started in S50 and S51. At the same time, the user performs a tricking operation or a touch operation for causing the settlement terminal device 1 to read the IC card 4.

In S53, payment conditions are generated in the master station 2 of the payment terminal device 1, and the payment conditions generated in S54 are transmitted to the slave station 3 as a payment instruction. In the slave station 3, the settlement instruction transmitted from the master station 2 is received in S55, and the process of reading customer identification information and the like from the IC card 4 and the process of writing the charge amount in the IC card 4 are performed in S56 and S57. The billing amount is written to the IC card 4 in order to manage the usage limit. For example, the monthly usage limit is determined. It is processed as if payment cannot be made. Further, if there is a point privilege or the like, data is written to the IC card 4 in S57. In S58, the processing on the IC card side is completed. The slave station 3 generates card transaction details information based on the customer identification information read in S59, and stores the transaction details information generated in the storage area of the storage device 3-4 in S60. Then, in S61, the master station 2 is notified of the settlement result including the transaction details information, and the slave station 3 completes the process in S62. The master station 2 receives the settlement result notified in S63, generates detailed information from the contents of the settlement result received in S64, and stores it in the storage area of the storage device 2-3 as sales information in S65. To complete the process. When these series of processes are completed, the product or service is delivered to the user (see, for example, Patent Document 1).
JP-A-10-255121

  However, if the process is interrupted because the power of the payment terminal device 1 is turned off during the payment process, the details of the master station 2 and the slave station 3 may not match. FIG. 8 shows a list when the processing is interrupted during the settlement processing. In the table of FIG. 7, “interruption timing” is shown by dividing time by (α), (β), (γ), and (δ) shown in FIG.

  That is, when an interruption occurs between the start of the settlement process and (α), the master station 2 and the slave station 3 are both before the creation of the detail information, so that there is no mismatch of details. Similarly, between (α) → (β) and between (β) → (γ), since the master station 2 and the slave station 3 are both before the creation of the detail information, the mismatch of the detail information does not occur. However, between (γ) → (δ), the master station 2 has not yet created the detailed information, but the slave station 3 has created the detailed information, and the settlement process is interrupted here. When the payment terminal device 1 recovers, mismatching of detailed information occurs between the master station 2 and the slave station 3. As a result, the master station 2 and the slave station 3 cannot match the detailed information, and the service or the product cannot be delivered even though the user is charged.

In view of the above, there is a need for a payment terminal device 1 that can handle interruptions in the middle of payment processing, that is, can prevent inconsistencies in detailed information even if interruptions occur in the middle of payment processing.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an electronic money system capable of matching transaction details information between a master station and a slave station even when the process is interrupted in the middle of a payment process in a post-pay electronic money system. Is to provide.

  In order to solve the above-described problems, in the present invention, in a post-pay electronic money system including a master station that is a host controller and a slave station that is a card control unit, the slave station is connected to an IC card in the settlement process. Temporary transaction details information is generated and stored in the storage unit when the writing process is completed, and the provisional transaction details information is converted into the positive details when the main station notifies that the saving of the details information has been completed. The information is stored in the storage unit. Then, the process is interrupted in the middle of the payment process due to power-off of the payment device, etc., and then the slave station matches the latest detailed information held by the master station with the latest detailed information held by itself. When the mismatch is detected, the provisional detailed information stored in advance is stored again as the positive detailed information. With this configuration, it is possible to match the detailed information between the master station and the slave station at the time of subsequent recovery activation, regardless of the timing at which the settlement process is interrupted. As a result, even if the process is interrupted in the middle of the settlement process, there is no situation where the service or the product cannot be delivered even though the user is charged after the settlement apparatus is restored.

  According to one aspect of the present invention, there is provided an electronic money system using an IC card comprising a slave station that is an IC card control unit and a master station that is a host controller that controls the slave station. Slave station communication means for communicating with the master station, slave station storage means for storing details and provisional details, and provisional details are generated upon receipt of a settlement instruction from the master station at the slave station communication means, and stored in the slave station storage means In addition, the provisional specification generating means for notifying the master station of a provisional specification storage completion notification via the slave station communication means, and receiving the specification storage completion notification from the master station in the slave station communication means, And a slave station detail generating means for storing the provisional details as the correct specifications in the slave station storage means. Thus, it is possible to store either the provisional specification or the correct specification in the storage unit of the slave station regardless of the timing at which the settlement process is interrupted.

  Further, in the above aspect, the master station further generates a settlement condition when a master station communication unit for communicating with the slave station, a master station storage unit for storing details, and a settlement start are input, and the master station A settlement condition generating means for notifying the slave station via a station communication means, and upon receipt of the provisional specification storage completion notification from the slave station by the master station communication means, a description is generated and stored in the master station storage means And a master station specification generation means for notifying the slave station of the completion of saving the specification via the master station communication means. Thereby, it is possible to match the detailed information between the master station and the slave station at the time of recovery starting after the settlement processing is interrupted.

According to the present invention, it is possible to match the detailed information between the master station and the slave station at the time of subsequent recovery activation, regardless of the timing at which the payment process is interrupted.
As a result, even if the process is interrupted in the middle of the settlement process, after the settlement device is restored, there is no situation where the service or product cannot be delivered even though the user is charged. Is obtained.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a functional block diagram of a payment terminal device 1 in an electronic money system that is an embodiment of the present invention.

The settlement terminal device 1 includes a master station 2 that is a host controller and a slave station 3 that is a card control unit.
The master station 2 is a communication unit 21 that communicates with the slave station 3; a settlement condition generation unit 22 that generates a settlement condition when a settlement start is input and notifies the slave station 3 via the communication unit 21; Upon receipt of the provisional storage saving notification from the slave station 3, the master station detail generation unit 23 generates the sales details and stores them in the storage unit 26 via the storage unit access unit 25, and restarts at the time of system startup or after system interruption A storage comprising a storage unit access unit 25 that sometimes reads details from the storage unit 26 and writes information to the storage unit 26, and a detail storage unit (sales information) 27 that stores sales details that are sales information of the store. Part 26.

  In addition, the slave station 3 generates a provisional specification when receiving a settlement instruction from the communication unit 31 that performs communication with the master station 2 and the master station 2, and stores it in the storage unit 37 via the storage unit access unit 36. In addition, the provisional item generation unit 32 that notifies the main station 2 of the provisional item storage completion notification via the communication unit 31 and the sales item storage completion notification received from the main station 2 or the result of the item matching as a result of the mismatch When notified, the slave specification generation unit 33 that stores the provisional specification stored in the storage unit 37 in the storage unit 37 as the present specification, and the provisional specification and the master station 2 read from the storage unit 37 when the system is started up A detail collating unit 34 that collates the details of the notified master station 2, a storage unit access unit 36 that reads and writes details and provisional details from the storage unit 37, and stores and holds details and provisional details. Detail storage unit 38, provisional details A storage unit 37 composed of 憶部 39, configured to read information from the IC card 4, the card access unit 35 for to write information.

  In FIG. 1, the same components as those of the settlement terminal device 1 in the post-pay electronic money system shown in FIG. The hardware configuration is not different from the configuration shown in FIG.

  The correspondence between the hardware configuration of FIG. 6 and the functional block diagram of FIG. 1 is as follows. The communication unit 21 of the master station 2 corresponds to the communication control unit (opposite station) 2-1, and the settlement condition generation unit 22, the master station specification generation unit 23, and the storage unit access unit 25 are a ROM not shown in FIG. A program recorded in (Read Only Memory) is executed by a main control unit 2-2 and a memory (not shown) such as a RAM (Random Access Memory), and the storage unit 26 is stored in the storage device 2-3. Corresponding to

  Further, the communication unit 31 of the slave station 3 corresponds to the communication control unit (vs. master station) 3-1, and the provisional specification generation unit 32, the slave station specification generation unit 33, the specification verification unit 34, and the storage unit access unit 36 are shown in FIG. Is realized by executing a program recorded in a ROM (not shown) by a memory such as a main controller 3-3 and a RAM (Random Access Memory) (not shown), and the storage unit 37 is a storage device 3-4. The communication control unit (for card) 3-5 and R / W 3-6 correspond to the card access unit 35.

Next, FIG. 2 shows a payment processing flow in the payment terminal device 1, and the processing of each unit will be described in detail.
In the settlement process, first, the process of the main station 2 is started in S1. Similarly, the processing of the slave station 3 is started in S2, and the operation of presenting the user such as scolding the IC card 4 is started in S3.

  Then, the settlement condition generation unit 22 of the main station 2 first generates a settlement condition (S4). An example of the settlement condition is shown in FIG. Settlement conditions are composed of “Master Transaction Number”, “Transaction Amount” that is incremented each time a transaction is performed at the Master Station 2, and “Transaction Type” that indicates whether the transaction is payment or return. Is done. In FIG. 3A, the settlement conditions of the main station transaction serial number “0005”, the transaction amount “3980”, and the transaction type “1” (“1” indicates payment) are shown. The generated payment conditions are transmitted as a payment instruction to the communication unit 31 of the slave station 3 via the communication unit 21 of the master station 2 (S5).

  Next, when a payment instruction is received in the communication unit 31 of the slave station 3 in S6, the present IC card 4 is presented (S8) by a presentation operation such as a user touching the device in S7 (S8). The card access unit 35 reads the customer identification information stored in the IC card 4 and writes the billing information and the like in the IC card 4. The billing information is written to the IC card 4 for managing the usage limit. For example, the monthly usage limit is determined, and when the card balance becomes 0, the card can be further paid for that month. It is processed as if there is no. FIG. 3B shows an example of information written on the card. It consists of “transaction serial number”, “usage history”, “card balance”, “payment by card”, etc. managed by the card. In FIG. 3B, the transaction serial number is “0035”, the store information as the usage history is “001537”, the remaining amount of the card is “045”, and whether the card settlement is “1” (in the case of 1, settlement is possible, 0 buy Is not possible). Such information is written in the card, and the processing of the IC card 4 ends in S9.

  In the slave station 3, the provisional details are generated from the customer identification information of the card read out in S7 by the provisional specification generation unit 32 (S10). FIG. 3C shows an example of a provisional specification. The provisional statement includes a “master transaction serial number” notified from the master station 2 as a settlement instruction, a “slave transaction serial number” that is managed in the slave station and incremented for each transaction, and “date and time” at which the transaction was performed, “Transaction amount” notified as a settlement instruction from the main station 2, customer identification information “card ID” read from the card, “transaction card balance” stored in the card after the transaction, and “transaction number in the card” It consists of “Card transaction serial number after transaction”. In FIG. 3C, the master station transaction number is “0005”, the slave station transaction number is “0003”, the transaction date is “200601113203625” (20:36:25 on January 13, 2006), and the transaction amount is “3980”. The provisional details of the card ID “12345678890123456”, the post-transaction card balance “045”, the post-transaction card transaction serial number “0035”, and the transaction type “1” are shown. The provisional details in FIG. 3C are generated based on the settlement instruction and information read from the card in FIG.

  In S11, the provisional details generated in the provisional detail storage unit 39 of the storage unit 37 of the slave station 3 are stored via the storage unit access unit 36. Next, the provisional statement generated by the provisional specification generation unit 32 is transmitted from the communication unit 31 of the slave station 3 to the master station 2 as a settlement result (S12).

  In S13, the communication unit 21 of the main station 2 receives the settlement result. In S14, the master station detail generation unit 23 generates sales details (sales information) based on the received settlement result, and stores the sales details (sales information) in the detail storage unit 27 of the storage unit 26 via the storage unit access unit 25 (S15). ). The “sales information” handled by the main station 2 is a specification that can grasp all transactions in the store without distinguishing various payment methods such as cash, prepaid card, and credit card. On the other hand, the slave station 3 stores only the details relating to payment of the available IC card.

  Next, in S <b> 16, the master station 2 notifies the slave station 3 that the processing of generating sales information by the master station detail generation unit 23 and storing it in the detail storage unit 27 of the storage unit 26 is completed. The contents to be notified at this time may be all the details from which the sales information is generated, or may be limited to contents that can identify the transaction such as a transaction serial number in the settlement result notified in S12. Good.

  Next, the slave station 3 that has received the settlement processing completion notification in S17 stores the provisional specification stored previously in S18 as the present specification. That is, the slave detail generation unit 33 stores the details of one record stored in the provisional detail storage unit 39 of the storage unit 37 via the storage unit access unit 36 in the storage unit 37 as the specification storage area. 38 is controlled to copy. The detail storage unit 38 stores transaction details for several thousand records in time series and cyclically.

  In S19, the storage unit access unit 36 of the slave station 3 deletes what has been stored as a provisional specification, and notifies the master station 2 that the storage of the specification has been completed in S20. Then, the processing of the slave station 3 ends (S21).

Further, when the main station 2 receives the detailed storage end notification from the slave station 3 (S22), the processing of the main station 2 is ended in S23, and a series of settlement processes is ended.
The series of payment processes of the payment processing apparatus 1 in the electronic money system of the present invention has been described above.

  It should be noted that whether or not the product or service can be delivered to the user of the IC card is linked to whether or not the sales information can be stored in the main station 2. The usage amount is collected from the actual IC card user based on the detailed information stored in the slave station 3. As shown in FIG. 6, the slave station 3 is connected to the center server 5 owned by the IC card provider via the network 6, and the detailed information list is periodically transmitted to the center server 5. The person collects a usage fee from the IC card user based on the notified detailed information.

  Next, a case where the process is interrupted due to power-off or the like during the settlement process shown in FIG. 2 will be examined by dividing time by (a) to (f) shown in FIG. The state of the master station 2 and the slave station 3 in each case is shown in the table of FIG.

  As is clear from FIG. 4, in the processing flow shown in FIG. 2, the processing starts → (a), (a) → (b), (b) → (c), (c) → (d). When the processing is interrupted at the timing between, the master station 2 and the slave station 3 are before the creation of the formal detail information, so there is no discrepancy between the details. However, between (d) and (e), the master station 2 officially generates the details, but the slave station 3 does not generate the details, and the details information is inconsistent. Also, between (e) and (f), both the master station 2 and the slave station 3 generate formal details, and since the transaction has been completed, there is no discrepancy between the details.

As described above, inconsistency of detailed information may occur due to the interruption of the settlement process, and a recovery method corresponding to this will be described below.
FIG. 5 shows a flow of recovery processing in the embodiment of the present invention.

  First, when the system is activated, the main station 2 reads the latest transaction details from the details stored in the detail storage unit 27 of the storage unit 26 by the storage unit access unit 25 (S30). Then, the latest transaction details read in S31 are transmitted to the slave station 3 as a settlement completion notification (S34). The process of S34 is the same as the process of S16 in FIG. In the slave station 3, the latest transaction details stored in the detail storage section 38 of the storage section 37 of the slave station 3 are first read after the activation (S33). Next, in S35, the settlement completion notice transmitted from the master station 2 in S34 is received, and in S36, the latest transaction details notified from the master station 2 in the detail verification unit 34 of the slave station 3 and the own station hold it. The latest transaction details to be compared are compared. As a comparison method, all items constituting the detailed information may be compared, or there may be a method of comparing a master transaction serial number or a slave transaction serial number, a method of comparing only transaction date and time, or the like. If the latest transaction details of the master station 2 and the slave station 3 match as a result of the comparison in S36, the process proceeds to S39, and if they do not match, the process proceeds to S37. By the way, such a disagreement of details is due to the fact that the processing is interrupted at the stage of transaction completion notification in the settlement processing of FIG. 2, but the slave station 3 holds a provisional detail corresponding to the latest transaction details. Therefore, if it is determined that there is a discrepancy in specifications, in S37, the slave specification generation unit 33 stores the provisional details stored in the provisional specification storage unit 39 of the storage unit 37 via the storage unit access unit 36. The provisional specification read in S38 is copied to the detail storage unit 38 of the storage unit 37 as the present specification.

  In S39, the storage unit access unit 36 deletes the provisional details stored in the provisional detail storage unit 39 of the storage unit 37 of the slave station 3, and notifies the master station 2 that the storage of details has been completed in S40. And the process of the slave station 3 is complete | finished by S41. Further, when the master station 2 receives the detailed storage end notification from the slave station 3 (S42), the process of the master station 2 is terminated in S43, the system is started, and a series of recovery (recovery) processes is completed. Is done.

As described above, by performing the recovery process as shown in FIG. 5, it is possible to correct the inconsistency between the specifications of the master station 2 and the slave station 3 and restart the system.
As described above, in the settlement terminal device of the present invention, at the time of the settlement process, the slave station generates provisional transaction details information at the stage where the writing process to the IC card is completed, stores it in the storage unit, and details from the master station. The provisional transaction details information is stored in the storage unit as positive details information when it is notified that the storage of information has been completed, and the settlement processing is interrupted by the settlement device and then recovered. In this case, the slave station checks whether the latest detailed information held by the master station matches the latest detailed information held by itself, and if a mismatch is detected, The detail information is re-stored as positive detail information. As a result, even if the settlement process is interrupted at any timing, it is possible to match the detailed information between the master station and the slave station at the time of subsequent recovery activation. Therefore, it is possible to correctly collect the usage amount from the user, and it is possible to prevent a situation in which the service or the product cannot be delivered even though the user is charged.

  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 payment terminal device in the electronic money system which is an Example of this invention. It is a figure which shows the payment processing flow in the Example of this invention. (A) is a figure which shows an example of the payment conditions produced | generated, (b) is a figure which shows an example of the information written in a card | curd, (c) is an example of the provisional detail and payment result produced | generated. FIG. It is a figure which shows the list of the states when a process is interrupted during a payment process. It is a figure which shows the restoration processing flow in the Example of this invention. It is a figure which shows the structure of the electronic money system of a postpay system. It is a figure which shows the payment processing flow in the electronic money system of FIG. FIG. 7 is a diagram showing a list of states when processing is interrupted during settlement processing in the electronic money system shown in FIG. 6.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Payment terminal device 2 Master station 3 Slave station 4 IC card 5 Center server 6 Network 21 Communication part 22 Settlement condition generation part 23 Master station detail generation part 25 Storage part access part 26 Storage part 27 Detail storage part (sales information)
31 Communication Unit 32 Provisional Detail Generation Unit 33 Slave Station Detail Generation Unit 34 Detail Verification Unit 35 Card Access Unit 36 Storage Unit Access Unit 37 Storage Unit 38 Detail Storage Unit (Card Details)
39 Provisional Detail Storage Unit 2-1 Communication Control Unit (for Slave Station)
2-2 Main control unit 2-3 Storage device 3-1 Communication control unit (vs. 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 reader / writer

Claims (8)

An electronic money system using an IC card, comprising a slave station that is an IC card control unit and a master station that is a host controller that controls the slave station,
The slave station is
Slave communication means for communicating with the master station;
Slave storage means for storing the details and provisional details;
When receiving a settlement instruction from the master station at the slave station communication means, a provisional specification is generated and stored in the slave station storage means, and a notification of completion of storage of the provisional specification is sent to the master station via the slave station communication means. Provisional statement generation means;
When the slave communication means receives the storage completion notification of the specification from the master station, the slave specification generation means for storing the provisional specification as the correct specification in the slave storage means,
An electronic money system comprising: The main station
Master station communication means for communicating with the slave station;
Main station storage means for storing details;
Payment condition generation means for generating a payment condition when a payment start is input and notifying the slave station via the master station communication means;
Upon receipt of the provisional specification storage completion notification from the slave station at the master station communication means, a specification is generated and stored in the master station storage means, and the storage completion of the specification is transmitted via the master station communication means. Master station statement generation means for notifying the slave station;
The electronic money system according to claim 1, further comprising: An electronic money system using an IC card, comprising a slave station that is an IC card control unit and a master station that is a host controller that controls the slave station,
The slave station is
Slave communication means for communicating with the master station;
Slave storage means for storing the details and provisional details;
When the slave communication means receives a settlement instruction from the master station, it generates a provisional specification, stores it in the slave storage means, and notifies the master station of a provisional specification storage completion notification via the slave communication means. Provisional statement generation means;
When receiving the latest specification of the master station in the slave communication means when recovering after the settlement process is interrupted, a specification verification means for verifying the latest specification of the master station and the latest specification of the own station;
When the slave station communication means receives a transaction details storage completion notification from the master station, or receives a verification result mismatch from the detail verification means, the provisional specification is stored in the slave storage means as a correct specification. Slave station detail generating means for
An electronic money system comprising: The main station
Master station communication means for communicating with the slave station;
Main station storage means for storing details;
Payment condition generation means for generating a payment condition when a payment start is input and notifying the slave station via the master station communication means;
Upon receipt of the provisional specification storage completion notification from the slave station at the master station communication means, a transaction specification is generated and stored in the master station storage means, and the transaction specification storage is completed via the master station communication means A master station statement generating means for notifying the slave station of,
A storage unit reading means for reading the latest specification stored in the master station storage means and notifying the slave station via the master station communication means when recovering after interruption of the settlement process;
The electronic money system according to claim 3, further comprising: An electronic money system using an IC card, comprising a slave station that is an IC card control unit and a master station that is a host controller that controls the slave station,
The main station
Master station communication means for communicating with the slave station;
Main station storage means for storing details;
A storage unit reading means for reading the latest specification stored in the master station storage means and notifying the slave station via the master station communication means when recovering after the settlement is interrupted;
With
The slave station is
Slave communication means for communicating with the master station;
Slave storage means for storing the details and provisional details;
When receiving the latest specification of the master station in the slave communication means when recovering after the payment is interrupted, the specification verification means for verifying the latest specification of the master station and the latest specification of the own station;
When notified of the mismatch of the collation result from the detail collating means, the slave station detail generating means for storing the provisional details as the correct specifications in the slave storage means;
An electronic money system comprising: An apparatus used in an electronic money system using an IC card, comprising a slave station that is an IC card control unit and a master station that is a host controller that controls the slave station,
The payment terminal device comprising: means for generating a provisional specification at the time of settlement processing and storing the provisional specification as a regular specification upon receipt of a storage completion notification of the specification from the master station. An electronic money system using an IC card comprising a slave station that is an IC card control unit and a master station that is a host controller that controls the slave station,
A step of generating and storing provisional details after completion of communication processing with the IC card in the slave station during the settlement process;
After the sales details are stored in the master station, the slave station stores the provisional details as the correct details;
A method for controlling an electronic money system, comprising: An electronic money system using an IC card comprising a slave station that is an IC card control unit and a master station that is a host controller that controls the slave station,
The main station
Upon restoration, the step of reading the latest details stored in the own station and transmitting to the slave station,
The slave station is
A step of collating the latest details of the main station transmitted from the main station with the latest details of the own station at the time of recovery;
As a result of the above collation, if the details match, it is assumed that the specifications of the main station and the own station are matched, and if they do not match, the details of the master station and the own station are stored as a provisional specification as inconsistent. Saving the line item as a normal line item,
A method for controlling an electronic money system, comprising: