JP4675700B2 - Merchandise sales data processing apparatus and exchange processing program - Google Patents

Description

  The present invention relates to a merchandise sales data processing apparatus such as a POS (sales point-of-sale) terminal, and an exchange processing program used therefor.

  The amendment of the Foreign Exchange and Foreign Trade Management Act (Foreign Exchange Act) (enforced in April 1998) has made it possible to exchange money at stores such as supermarkets and convenience stores. Along with this, inventions have been filed for POS terminals and cash registers that are installed and used in such stores and that enable settlement processing in a foreign currency (Patent Document 1, Patent Document). 2).

  In Patent Document 1, a pass conversion rate table in which conversion rates of a plurality of foreign currencies and yen currencies are registered in advance in the memory of the POS terminal, and the customer wishes to pay the price in a foreign currency. Describes a point-of-sale terminal capable of notifying the price and change amount in a foreign currency that a customer wishes to pay using a currency conversion rate table (see claims, paragraph 0004, etc.). In addition, Patent Document 1 also mentions settlement processing in a foreign currency.

  Patent Document 2 describes an invention in which the function of a foreign currency exchange machine for exchanging foreign currency into domestic currency is integrated with a cashier settlement system using a conventional POS terminal and a money depositing and dispensing machine (paragraph 0027). Etc.). Patent Document 2 mentions not only the settlement in foreign currency of purchased goods as described in Patent Document 1, but also the foreign currency exchange itself (paragraph 0054, paragraph 0066, etc.). ).

Japanese Patent Laid-Open No. 11-242781 Japanese Patent Laid-Open No. 11-306443

  Patent Documents 1 and 2 describe settlement processing in a foreign currency at a POS terminal. Patent Document 2 further refers to foreign currency exchange. In such settlement processing or exchange processing in foreign currency, both Patent Documents 1 and 2 acquire and store the conversion rate or exchange rate between the foreign currency and the home currency, and perform settlement processing or exchange in the foreign currency. At the time of processing, a method of executing conversion processing to the home currency using the stored conversion rate or exchange rate is adopted.

  On the other hand, for example, when a foreign currency is obtained at a supermarket or a convenience store, it is necessary to convert the foreign currency into the home currency. For example, Patent Document 1 has a description that “from the next day, the store converts the received foreign currency into a yen pass at a bank” (paragraph 0020). For this reason, there is a time lag between the time when settlement processing or currency exchange processing is performed in a foreign currency and the time when foreign currency is converted into the home currency at a financial institution such as a bank. Inevitably occurs. Therefore, stores such as supermarkets and convenience stores are exposed to risks due to fluctuations in foreign exchange rates.

  An object of the present invention is to provide a merchandise sales data processing apparatus and a currency exchange processing program that can avoid store-side risks associated with fluctuations in foreign exchange rates.

The merchandise sales data processing apparatus of the present invention includes a means for executing merchandise sales data processing based on input merchandise data, a communication interface for realizing communication with an external device, and the communication interface at the time of exchange processing. used first to establish communication with the external device, and receives the latest exchange rate for the first external device or al outside country currency, and means for storing in the storage area, the amount of foreign currency exchange Based on the means for inputting the exchange basic information and the latest exchange rate stored in the storage area, the amount of the domestic currency corresponding to the amount of the entered foreign currency is calculated, and the exchange settlement processing is performed with the amount of the domestic currency. And proof information that proves, together with the amount of the foreign currency exchanged, that the exchange made by the exchange settlement process is made at the latest exchange rate. Generated, the only from the reception of the latest exchange rate within a predetermined time, and means for transmitting to the second said external device using the communication interface.

The exchange processing program of the present invention is installed in a computer provided with a product sales data processing apparatus that includes a communication interface that realizes communication with an external device and that executes product sales data processing based on input product data. , to the computer, at the time of exchange processing, using said communication interface establishes communication with the first of said external device receives the latest exchange rate for the first external device or al outside country currencies, the storage area A function of storing, a function of inputting basic exchange information including the amount of foreign currency to be exchanged, and an amount of the domestic currency corresponding to the amount of the entered foreign currency based on the latest exchange rate stored in the storage area And a function for executing the exchange settlement process with the amount of the local currency, and the exchange performed by the exchange settlement process is updated to the latest exchange rate. Generates certification information certifying with amounts foreign currency are exchange that was made I, only the receipt of the latest exchange rate within a predetermined time, the second the outside using the communication interface And a function to transmit to the device.

  According to the present invention, it is possible to avoid store-side risk associated with fluctuations in foreign exchange rates.

  An embodiment of the present invention will be described with reference to FIGS.

1. Overall Configuration of System FIG. 1 is a schematic diagram showing an overall configuration of a currency exchange system 1 according to the present embodiment. As shown in FIG. 1, the currency exchange system 1 includes a POS system installed in a store 10 such as a convenience store and a currency exchange computer 200 installed in a currency exchange organization 20 such as a bank via a communication network 300. It is constructed by connecting to enable communication. In the currency exchange system 1, one currency exchange institution computer 200 can be accessed from the POS systems of a plurality of stores 10.

  The POS system installed in each store 10 is constructed such that the POS terminal 100, the store controller 110, and the communication server 120 are capable of data communication via the LAN network 130.

  A currency exchange computer 200 installed in the currency exchange 20 can access information stored in a storage area of the storage device 201. The information stored in the storage area of the storage device 201 is, for example, the exchange rate table 202 or the certification information log file 203. The exchange rate table 202 stores the latest exchange rate that guarantees exchange between the foreign currency and the domestic currency and a log thereof. As the exchange rate, a domestic currency rate is set corresponding to the foreign currency of a plurality of countries. In the present embodiment, the currency exchange organization 20 provides the latest exchange rate data to the store 10 side, and the store 10 executes a currency exchange transaction with the customer at the exchange rate. Provided is a scheme for guaranteeing the store 10 at the exchange rate at the time of carrying out the exchange transaction when the foreign currency is brought in and the money is converted into the home currency. Under such a scheme, the store 10 proves from the currency exchange organization 20 that the currency exchange organization 20 has exchanged money according to the latest exchange rate of the foreign currency that the purchase is committed to, along with the amount of the foreign currency exchanged. There is a need. Therefore, in the present embodiment, certification information for such certification is generated at the POS terminal 100 on the store 10 side. As an example, the POS terminal 100 transmits the generated certification information to the currency exchange computer 200 via the communication network 300. The certification information log file 203 stored in the storage area of the storage device 201 of the currency exchange organization computer 200 is a file for storing a log of received certification information.

  FIG. 2 is an external perspective view of the POS terminal 100. The POS terminal 100 is used by being placed on a drawer 101 that stores money. Such a POS terminal 100 includes a housing 102. A display 103 is provided on the rear portion of the upper surface of the housing 102. The display 103 includes an operator surface display 103 a placed on the upper surface of the housing 102 and a customer surface display 103 b erected from the housing 102. A keyboard 104 is disposed on the front upper portion of the housing 102. The keyboard 104 includes a numeric keypad 104a, a subtotal key 104b, a deposit / current total key 104c, and a currency exchange key 104d. The display 103 and the keyboard 104 constitute a man-machine interface. As a component of the man-machine interface, a touch panel 104e (see FIG. 4) is further stacked on the operator surface display 103a.

  A receipt printer 105 (see FIG. 4) is provided on the upper left portion of the housing 102. The receipt printer 105 includes a receipt issue port 105a.

  Further, a bar code scanner 106 for optically reading a product code is connected to the POS terminal 100.

  3A is a plan view of the numeric keypad 104a included in the keyboard 104 of the POS terminal 100, FIG. 3B is a plan view of the subtotal key 104b included in the keyboard 104 of the POS terminal 100, and FIG. FIG. 3D is a plan view of the exchange key 104d provided on the keyboard 104 of the POS terminal 100. FIG. As shown in FIGS. 3A to 3D, the key tops of the numeric keypad 104a, the subtotal key 104b, the deposit / current total key 104c, and the exchange key 104d are displayed indicating their functions.

  Here, the numeric keypad 104a is, for example, a key for inputting a customer deposit amount, and in the present embodiment, it is also used when inputting a deposit amount in a foreign currency. The subtotal key 104b is a key for declaring calculation of the total sales amount in the product sales data processing business. In the present embodiment, the subtotal key 104b also serves to declare the display of the currency amount after currency conversion. The deposit / cash total key 104c is a key for declaring closing by cash transaction in the merchandise sales data processing business. In the present embodiment, the deposit / cash total key 104c also has a role of declaring closing by a currency exchange transaction. The foreign currency exchange key 104d is a key for declaring the start of a currency exchange transaction.

  FIG. 4 is a block diagram showing a hardware configuration of the POS terminal 100. The POS terminal 100 includes a microcomputer 107 on a main board (not shown), and the microcomputer 107 drives and controls each unit. The microcomputer 107 is configured by connecting a ROM 107b and a RAM 107c via a bus line 107d to a CPU 107a that centrally controls each unit. Fixed data is stored in the ROM 107b in a fixed manner. The RAM 107c stores variable data in a rewritable manner and is used as a work area.

  A drawer 101 is connected to the microcomputer 107 via a drawer control unit 107e, a display 103 is connected via a display control unit 107f, and a keyboard 104 and a touch panel 104e are connected via an input control unit 107g. The receipt printer 105 is connected via the control unit 107h, and the barcode scanner 106 is connected via the barcode scanner control unit 107i.

  A communication I / F 107j is also mounted on the main board of the POS terminal 100. The communication I / F 107j enables data communication with an external device via the bus line 107d. The external devices that can communicate are, for example, the store controller 110 and the communication server 120 provided in the store 10. Communication between the POS terminal 100 and the currency exchange organization computer 200 installed in the currency exchange organization 20 can be realized via the communication server 120 provided in the store 10. That is, the POS terminal 100 can perform data communication with an external device such as the currency exchange organization computer 200 via the communication network 300 via the communication server 120.

  The POS terminal 100 includes an HDD 107k as a storage device. The HDD 107k is connected to the microcomputer 107 via the bus line 107d. Various processing programs are installed in the HDD 107k as an example. As various processing programs installed in the HDD 107k, in addition to a processing program for executing merchandise sales data processing, an exchange processing program 107l for executing exchange processing is also provided. The processing program installed in the HDD 107k is moved to the RAM 107c when the POS terminal 100 is started. The CPU 107a executes various arithmetic processes according to the processing program transferred to the RAM 107c, and centrally controls each unit.

2. Currency Exchange Processing FIG. 5 is a flowchart showing the flow of currency exchange processing in the POS terminal 100. FIGS. 6A to 6H and FIGS. 7A to 7E are schematic diagrams illustrating events that occur when currency exchange processing is executed in the POS terminal 100 over time. Based on the flowchart shown in FIG. 5 and the schematic diagrams shown in FIGS. 6 and 7, the currency exchange process executed in the currency exchange system 1 will be described. Here, it is assumed that a customer who wants to exchange US dollar bills from a 100 dollar bill (foreign currency) to a Japanese currency (internal currency) appears in the store 10.

  First, the customer requests the operator to exchange 100 dollar bills into Japanese currency (see FIG. 6A). In response to this, the operator presses the exchange key 104d provided on the keyboard 104 of the POS terminal 100 (see FIG. 6B). Thereby, the exchange process at the POS terminal 100 is started.

[Processing Step S101 in FIG. 5]
When the exchange key 104d is pressed, the POS terminal 100 displays the country list display screen on the operator surface display 103a under the control of the CPU 107a of the microcomputer 107 (see FIG. 6C).

  The operator touches a country corresponding to the foreign currency brought in by the customer from a plurality of countries displayed on the country list display screen, and performs country selection designation. The touch designation in this case is made by the touch panel 104e. Here, since it is assumed that an American 100 dollar bill is brought in, the operator selects and designates “America”.

[Processing Step S102 in FIG. 5]
When the country selection designation is executed, the POS terminal 100 executes exchange rate data acquisition processing.

  Under the control of the CPU 107a of the microcomputer 107, the POS terminal 100 executes an exchange data distribution request to the exchange engine computer 200 installed on the exchange engine 20 side via the communication I / F 107j. At this time, the POS terminal 100 notifies the type of store currency and the store ID. In this case, the money changer computer 200 is a first external device.

  When receiving the exchange rate data distribution request from the POS terminal 100, the exchange agency computer 200 installed on the exchange agency 20 side is updated with the latest exchange rate of foreign currency for which the exchange agency 20 is committed to purchase, in this case, the dollar. The latest exchange rate data between the yen and the yen is distributed to the corresponding POS terminal 100. The exchange rate in this case is exchange rate data stored in the exchange rate table 202 stored in the storage area of the storage device 201 accessible by the currency exchange computer 200. As an example, the latest exchange rate between dollars and yen is 100.000000.

  When the exchange rate distributed by the money changer computer 200 is acquired, the POS terminal 100 temporarily stores the acquired exchange rate data in the work area of the RAM 107c functioning as a storage area under the control of the CPU 107a of the microcomputer 107. . Then, based on the acquired exchange rate data, a money amount input screen including information indicating the exchange rate is displayed on the operator surface display 103a (see FIG. 6D).

[Processing Step S103 in FIG. 5]
Next, the operator inputs the total amount of foreign currency brought in by the customer using the numeric keypad 104a provided on the keyboard 104 (see FIG. 6E). Here, 100 dollars is input as the total amount.

  The type of foreign currency input at processing step S101 and the total amount of foreign currency input at processing step S103 constitute basic exchange information.

[Processing Step S104 in FIG. 5]
When the input of the total amount is completed, the operator presses the subtotal key 104b provided on the keyboard 104 in order to display the converted amount (see FIG. 6 (f)). Thereby, in the POS terminal 100, under the control of the CPU 107a of the microcomputer 107, the currency conversion currency amount is calculated based on the total input value of the foreign currency and the acquired exchange rate value, and the calculated currency conversion currency Information indicating the forehead is displayed on the operator surface display 103a and the customer surface display 103b (see FIG. 6G). Here, since the total input amount of the foreign currency is 100 dollars and the exchange organization exchange rate is 100.000000, the total foreign currency input value “100” × the exchange organization exchange rate value “100.000000” = the currency conversion currency amount. The value is “10,000”. In this example, as shown in FIG. 6 (g), “¥ 10,000” is displayed in the converted Japanese yen display frame provided in the amount input screen, and as shown in FIG. 6 (h), “Conversion total 10,000 yen” is displayed on the customer display 103b.

  In this case, an exchange fee may be added as desired on the store 10 side.

[Processing Step S105 in FIG. 5]
If the customer sees the displayed currency conversion currency amount and determines that the money can be exchanged, the customer hands over the foreign currency to the operator (see FIG. 7A).

  When the operator deposits the foreign currency from the customer, the authenticity of the deposited foreign currency is checked by referring to the counterfeit bill check information displayed on the amount input screen shown in FIGS. 6 (d) and 6 (g). (See FIG. 7B). Here, image information and the like for confirming the authenticity of the corner printing portion and the left watermark portion of the 100 dollar bill are displayed in the counterfeit bill check information display field of the amount input screen (see FIGS. 6D and 6G). ). Therefore, the operator actually checks the authenticity of the corner printing portion and the left watermark portion of the 100 dollar bill with reference to the image information.

  As a result of the authenticity check, when it is determined that the foreign currency deposited by the user is not a counterfeit bill, the operator presses the deposit / cash key 104c provided on the keyboard 104 to instruct exchange settlement (see FIG. 7 (c)). Thereby, the CPU 107a of the POS terminal 100 recognizes that there has been an instruction declaration for the currency exchange settlement process.

[Processing Step S106 in FIG. 5]
FIG. 8 is a schematic view illustrating an exchange receipt issued in accordance with the exchange process. When the deposit / cash key 104c is pressed, the POS terminal 100 issues an exchange receipt for the exchange transaction by the receipt printer 105 under the control of the CPU 107a of the microcomputer 107 (see FIG. 7D). ), Processing to leave a history in the journal.

  The exchange settlement processing is completed by the processing of the processing steps S104 to S106 described above.

  Thereafter, the operator hands over the issued exchange receipt and the domestic exchange conversion money to the customer (see FIG. 7E). Here, “10,000 yen bills” of Japanese banknotes will be handed to the customer as exchange conversion money.

[Processing Step S107 in FIG. 5]
Following the processing step S106, the POS terminal 100 generates proof information for certifying that the exchange made by the exchange settlement process is made at the latest exchange rate together with the amount of the foreign currency exchanged, and the communication I / O The data is transmitted to the currency exchange engine computer 200 installed on the currency exchange engine 20 side using F107j. In this case, the currency exchange computer 200 is a second external device.

  As an example, the certification information includes a store ID, the date and time when the exchange settlement process is executed, and the type and amount of the foreign currency exchanged in the exchange settlement process.

3. Certification process (1) Certification scheme As described above, in this embodiment, the exchange organization 20 provides the store 10 with the latest exchange rate data, and the store 10 executes exchange transactions with the customer at the exchange rate. Then, at a later date, when the store 10 brings foreign currency into the currency exchange organization 20 and seeks to convert it into its own currency, a scheme is provided for guaranteeing the exchange at the exchange rate when the store 10 executes the currency exchange transaction. Therefore, it is necessary for the store 10 to prove together with the amount of the exchanged foreign currency that it has been exchanged from the exchange organization 20 at the latest exchange rate of the foreign currency that the exchange organization 20 promises to purchase. . As a process for that, the POS terminal 100 generates certification information including the store ID, the date and time when the exchange settlement process was executed, and the type and amount of the foreign currency exchanged in the exchange settlement process, and via the communication network 300 To the currency exchange computer 200.

  FIG. 9 is a schematic diagram illustrating an example of the certification information log file 203 stored in the storage area of the storage device 201 accessible by the currency exchange computer 200. When receiving the certification information from the POS terminal 100, the currency exchange organization computer 200 accesses the storage device 201 and records the received certification information in the certification information log file 203. At this time, the certification information log file 203 records and manages “exchange transaction date and time”, “type and amount of foreign currency”, “exchange rate”, and “converted domestic amount” for each “store”. Therefore, when the received certification information is recorded in the certification information log file 203, the “store” in the certification information log file 203 is searched from the store ID contained in the certification information, and the exchange settlement contained in the certification information is performed. The date and time when the process was executed is recorded in the “exchange transaction date and time” of the certification information log file 203, and the type and amount of the foreign currency exchanged in the exchange settlement process included in the certification information is displayed in the “foreign currency” of the certification information log file 203. In “Type and amount”. If the “type and amount of foreign currency” and the “exchange date and time” are found, the exchange rate can be searched with reference to the log information in the exchange rate table 202. Therefore, the exchange rate searched in this way is recorded in the “exchange rate” of the certification information log file 203. Further, if the “type and amount of foreign currency” and the exchange rate are known, the converted domestic amount can be calculated. Therefore, the converted domestic price calculated in this way is recorded in “converted domestic price” of the certification information log file 203. In this way, all information in the certification information log file 203 corresponding to one transaction is recorded and registered as log information.

  The store 10 needs to bring the foreign currency obtained from the exchange into the currency exchange organization 20 at a later date and convert it into a domestic currency, here Japanese yen. At this time, the currency exchange organization 20 can easily grasp how much Japanese yen should be paid for which type of currency by referring to the certification information log file 203.

  FIG. 10 is a timing chart showing an example of data transmission / reception executed between the currency exchange computer 200 and the POS terminal 100 for the certification process. In the present embodiment, the POS terminal 100 requests the exchange agency computer 200 to send an exchange rate, and in response thereto, the exchange agency computer 200 sends the exchange rate to the POS terminal 100 (processing step S102 in FIG. 5). ). Therefore, the exchange rate is transmitted to the POS terminal 100 as a result of transmitting the exchange rate transmission request to the currency exchange organization computer 200. Then, the POS terminal 100 executes exchange settlement processing at the received exchange rate, and transmits certification information to the exchange organization computer 200. Therefore, in this embodiment, the currency exchange computer 200 is a first external device as well as a second external device.

  In the scheme of this embodiment, communication continues to be established between the currency exchange computer 200 and the POS terminal 100 until a series of flows from the exchange rate transmission request to the transmission of certification information is completed. A configuration may be adopted, and communication may be established every time each event occurs. Regardless of which configuration is adopted, the proof is established because the proof information includes the store ID, the date and time when the exchange settlement process is executed, and the type and amount of the foreign currency exchanged in the exchange settlement process. However, a time lag is unavoidable between the exchange rate transmission from the currency exchange computer 200 and the certification information transmission from the POS terminal 100. For this reason, it is desirable to set a timeout between transmission of the exchange rate from the currency exchange computer 200 and transmission of certification information from the POS terminal 100. What is necessary is just to set time-out time suitably according to the actual condition of transaction.

  In the present embodiment, the information on the date and time when the currency exchange settlement process is executed to prove that the currency exchange agency 20 has exchanged money at the latest exchange rate of the foreign currency for which purchase is committed. Is used to uniquely determine an exchange rate that varies over time. For this reason, if the exchange rate which fluctuates with the passage of time can be uniquely determined, it is not always necessary to include information on the date and time when the exchange settlement process is executed in the certification information. Therefore, as another embodiment, it is possible to include unique specific information in the exchange rate transmitted by the exchange organization computer 200 and include the specific information in the certification information from the POS terminal 100. In this case, if the exchange engine computer 200 manages the value of the exchange rate specified by the unique specific information included in the exchange rate, the exchange rate can be searched from the specific information.

(2) Another Proof Scheme FIG. 11 is a timing chart showing another data transmission / reception example different from FIG. 10 executed between the currency exchange computer 200 and the POS terminal 100 for the certification process. The example shown in FIG. 10 employs a scheme in which the exchange rate is transmitted to the POS terminal 100 as a result of transmitting the exchange rate transmission request to the currency exchange computer 200. On the other hand, the example shown in FIG. 11 employs a scheme in which the exchange rate is distributed from the money changer computer 200 to the host machine on the store side, for example, the store controller 110. In this case, the “store side” means the entire group exceeding the physical restriction of one store in the case of a franchised store such as a convenience store. Therefore, the concept of “higher-level machine on the store side” includes higher-level machines in a group that exceeds the physical frame of the store 10, such as a regional server that bundles a plurality of stores 10 and a host computer that bundles each region. It is.

  Due to such a configuration, the POS terminal 100 installed in each store 10 transmits an exchange rate transmission request to the host device as necessary. In response to this, the host device transmits an exchange rate to the POS terminal 100. Then, the POS terminal 100 executes exchange settlement processing at the received exchange rate, and transmits certification information to the exchange organization computer 200. Accordingly, in the scheme illustrated in FIG. 11, the host machine is the first external device, and the currency exchange engine computer 200 is the second external device.

  In the scheme illustrated in FIG. 11, the exchange rate distribution from the currency exchange organization computer 200 to the host machine on the store side is executed when an event occurs. Examples of events include the passage of a predetermined time, for example, the passage of an hour, or the fluctuation range of the foreign exchange rate that will be the basis of the exchange rate exceeds a certain range. be able to. Therefore, after the exchange rate is distributed from the money exchange organization computer 200 to the host machine on the store side, the exchange rate until the next delivery is the latest exchange rate.

  Even in the scheme illustrated in FIG. 11, it is inevitable that a time lag occurs between the transmission of the exchange rate from the host device to the POS terminal 100 and the transmission of certification information from the POS terminal 100 to the currency exchange organization computer 200. For this reason, as in the scheme illustrated in FIG. 10, it is desirable to set a timeout between them. The time-out time in this case may be set as appropriate according to the actual situation of the transaction.

(3) Still Another Proof Scheme FIG. 12 is a timing chart showing another data transmission / reception example different from that of FIG. 10 and FIG. 11 executed between the currency exchange computer 200 and the POS terminal 100 for the certification process. is there. The scheme illustrated in FIG. 12 is basically common to the scheme illustrated in FIG. The difference is that the certification information is not transmitted from the POS terminal 100 to the currency exchange computer 200, but is first transmitted to the host computer on the store 10 side, and then transmitted from the host device to the currency exchange computer 200. . Therefore, in the scheme illustrated in FIG. 12, the host device is the first external device and also the second external device.

  Here, as the timing for transmitting the certification information from the host machine to the currency exchange computer 200, for example, an operation such as once a week or once a month may be employed. For this reason, in the scheme illustrated in FIG. 12, a trust relationship between the store 10 side and the currency exchange organization 20 is assumed. That is, in terms of operation, a trust relationship between the store 10 side and the currency exchange organization 20 is indispensable with respect to the fact that the store 10 side does not falsify the certification information to be held for a certain period.

(4) Another Example of Proof Information In the various schemes described above, the proof information includes the type of foreign currency exchanged in the currency exchange settlement process. This type information is necessary because it is premised on the exchange of foreign currencies of two or more countries into the home currency. Therefore, if the POS terminal 100 is configured to execute only exchange between a foreign currency of one country, for example, the US dollar and the home currency, it is not necessary to include the type of foreign currency exchanged in the exchange information in the certification information. .

4). Others According to the currency exchange system 1 of the present embodiment described above, a great advantage is brought to each of the customers of the store 10, the currency exchange organization 20, and the store 10 that wants to exchange money.

  For customers aiming at currency exchange, currency exchange is performed using the POS terminal 100 provided in a store 10 such as a convenience store or a supermarket that is installed in many places close to daily life. Can be exchanged easily at any time. For example, even if a Japanese goes on a business trip abroad or travels abroad and takes away the foreign currency obtained by exchanging abroad, it can be easily exchanged at a store 10 such as a convenience store. Convenient. In addition, when the exchange system shown in the above-mentioned embodiment is applied in other countries other than Japan, for example, a Japanese has suddenly needed a product in China, but seems to have only Japanese currency. In such a case, it would be very convenient if you could exchange it for Chinese currency at a convenience store in China.

  When viewed from the store 10 side, the exchange rate at the time of carrying out the exchange transaction is guaranteed, so the risk on the store 10 side due to the fluctuation of the foreign exchange rate is avoided. Therefore, the store 10 side can carry out the exchange transaction with peace of mind. Moreover, since the store 10 side can also take a fee associated with the exchange transaction, it leads to an increase in the exchange fee income. Or since it becomes the store 10 which can exchange between currencies, even if it does not take a commission, it can also anticipate the effect of attracting customers by it. For example, it is possible to increase sales by attracting foreign tourists who have only foreign currency.

  For the currency exchange organization 20, there is a great advantage in that it is possible to obtain a currency exchange fee by a currency exchange transaction while preventing the occurrence of labor costs or equipment costs associated with the installation of currency exchange window facilities. In particular, if the currency exchange system 1 is constructed with a store 10 such as a convenience store or a supermarket, a currency exchange transaction occurs on a local scale or a nationwide scale, so that a great economic effect can be expected.

It is a schematic diagram which shows the whole structure of the exchange system of this Embodiment. It is an external appearance perspective view of the POS terminal which comprises a currency exchange system. (A) is a plan view of the numeric keypad of the keyboard of the POS terminal, (b) is a plan view of the subtotal key of the keyboard of the POS terminal, (c) is a plan view of the deposit / current total key of the keyboard of the POS terminal, (D) is a top view of the exchange key which the keyboard of a POS terminal has. It is a block diagram which shows the hardware constitutions of a POS terminal. It is a flowchart which shows the flow of the exchange process between currencies in a POS terminal. (A)-(g) is a schematic diagram which shows the event which generate | occur | produces over time when the exchange process between currencies in a POS terminal is performed. (A)-(e) is a schematic diagram which shows the event which generate | occur | produces over time when the exchange process between currencies in a POS terminal is performed. It is a schematic diagram which shows one structural example of an exchange receipt. It is a schematic diagram which shows an example of the certification | authentication information log file memorize | stored in the storage area of the memory | storage device which a currency exchange organization computer can access. It is a timing chart which shows the example of data transmission / reception performed between an exchange organization computer and a POS terminal for certification processing. It is a timing chart which shows the data transmission / reception example different from FIG. 10 performed between an exchange organization computer and a POS terminal for a certification | authentication process. 12 is a timing chart showing another data transmission / reception example shown in FIG. 10 and FIG. 11 executed between the currency exchange organization computer 200 and the POS terminal 100 for the proof processing.

Explanation of symbols

107j ... Communication interface, 107c ... Storage area (RAM), 110 ... External device, computer (store controller), 200 ... External device, computer (exchange organization computer)

Claims (11)

Means for executing product sales data processing based on the input product data;
A communication interface for realizing communication with an external device;
During exchange process, means for first establishes a communication with the external device, receives the latest exchange rate for the first external device or al outside country currencies, is stored in the storage area by using the communication interface,
Means for entering basic exchange information including the amount of foreign currency to be exchanged;
Based on the latest exchange rate stored in the storage area, calculating the amount of the domestic currency corresponding to the amount of the input foreign currency, and executing the currency exchange settlement process with the amount of the local currency;
Generate proof information that proves that the exchange made by the exchange settlement process is made at the latest exchange rate together with the amount of foreign currency exchanged, and only within a predetermined time from the receipt of the latest exchange rate and means for transmitting to the second said external device using the communication interface,
A product sales data processing apparatus comprising:   The merchandise sales data processing apparatus according to claim 1, wherein the certification information includes a date and time when the exchange settlement process is executed and a foreign currency amount exchanged in the exchange settlement process. The exchange rate includes unique specific information;
The certification information includes specific information on the latest exchange rate used in the exchange settlement process and the amount of foreign currency exchanged in the exchange settlement process.
The merchandise sales data processing apparatus according to claim 1.   The merchandise sales data processing apparatus according to claim 1, wherein the latest exchange rate is distributed from the first external device.   The merchandise sales data processing apparatus according to claim 1, wherein the latest exchange rate is transmitted from the first external device as a result of transmitting a transmission request to the first external device. The latest exchange rate received from the first external device includes a latest exchange rate for at least two or more foreign currencies;
The exchange basic information to be input includes the type of foreign currency to be exchanged,
In the exchange settlement process, referring to the latest exchange rate corresponding to the type of foreign currency entered, calculate the amount of the domestic currency corresponding to the amount of the foreign currency,
The certification information also proves the type of foreign currency exchanged,
The merchandise sales data processing apparatus according to claim 1.   The merchandise sales data processing apparatus according to claim 1, wherein the first external device is a store computer.   The merchandise sales data processing apparatus according to claim 1, wherein the first external device is a computer on a currency exchange organization side.   The merchandise sales data processing apparatus according to claim 1, wherein the second external device is a store computer.   The merchandise sales data processing apparatus according to claim 1, wherein the second external device is a computer on a currency exchange organization side. A communication interface that realizes communication with an external device is installed in a computer included in a merchandise sales data processing device that executes merchandise sales data processing based on input merchandise data.
During exchange process, the ability to establish communication with the first of said external device using the communication interface, receive the latest exchange rate for the first external device or al outside country currencies, is stored in the storage area,
A function to enter basic exchange information including the amount of foreign currency to be exchanged,
Based on the latest exchange rate stored in the storage area, a function of calculating the amount of the domestic currency corresponding to the amount of the input foreign currency, and executing a currency exchange settlement process with the amount of the local currency;
Generate proof information that proves that the exchange made by the exchange settlement process is made at the latest exchange rate together with the amount of foreign currency exchanged, and only within a predetermined time from the receipt of the latest exchange rate , a function of transmitting to the second said external device using the communication interface,
A program for currency exchange processing.

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