JP5487249B2 - Product data processing method - Google Patents

Description

  The present invention relates to a data processing method of a merchandise data processing apparatus used for inputting data related to merchandise purchased by a customer in a retail store or the like.

  Conventionally, a system using a communication terminal has been considered as an example of a system for simplifying accounting work at a cash register in a retail store. In this system, a communication terminal with a barcode reader is attached to a shopping cart that can store products. Then, when the shopper who uses the cart stores the product he / she purchases in the cart, the shopper uses the barcode reader to read the barcode attached to the product. The bar code is a bar code of a product identification code unique to the product. When the barcode is read by the barcode reader, the communication terminal reads the price of the product from the price table based on the product identification code obtained from the barcode. The price is stored in the memory together with the product identification code.

  On the other hand, customers who have finished shopping go to the cash register of the store together with the shopping cart. A POS terminal capable of communicating with the communication terminal is installed at the cash register. At the cash register, the product identification code and price data stored in the memory of the communication terminal are read by the POS terminal. As a result, the POS terminal processes the product sales data based on the read product identification code and price data, and calculates the total. Then, accounting with the customer is processed based on the calculated total. Accordingly, since the product identification code of the product to be purchased by the customer himself / herself is input, the operation of inputting the product identification code by the store clerk, which has been conventionally performed at the cash register, can be omitted, and the accounting operation can be simplified. it can.

  In this type of system, conventionally, an image of a product stored in a cart is photographed with a video camera centering on a barcode reading position by a barcode reader, and the photographed image is displayed on a CRT. There has already been considered a technique for monitoring fraud such as storing goods in a cart without reading a barcode. Furthermore, image processing is performed on the video captured by the video camera, and the fraud is automatically monitored by detecting whether or not the barcode reader has read the barcode when the product is stored in the cart. Is also considered (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 08-147560

  However, in the prior art, in order to detect whether or not the barcode reader has read the barcode when the product is stored in the cart as described above, the barcode reading position by the barcode reader is determined by the video camera. Must be shooting continuously. In addition, the captured video must be subjected to complicated image processing. For this reason, there is a concern that power consumption is increased, and complicated image processing is required, resulting in high costs.

  The present invention has been made based on such circumstances. The purpose of the present invention is to obtain a product without inputting a product identification code in a method of inputting a product identification code of a product purchased by the customer himself / herself. It is to be able to suppress such fraud by a low power consumption and low cost system.

The present invention stores a code reading step in which a customer himself / herself reads a product identification code unique to a product to be purchased by a customer, and setting data relating to the product specified by the code for each product identification code of various products. A product determination file for determining whether or not the product identification code read by the customer in the code reading step is stored in the product master file, and the product identification code read by the customer in the code reading step A shooting step for shooting the product specified by the product identification code in response to the determination by the code determination step that the image has been stored in the file, and image data of the product shot by the shooting step a data processing step of storing in association with the identification code, this data processing scan In product data processing method and a display step of clerk identifiable to display the image data items stored in association with the product identification code-up.

1 is a schematic diagram showing a schematic configuration of a POS system according to an embodiment of the present invention. The perspective view which shows the external appearance structure of the cart terminal used in the embodiment. The block diagram which shows the principal part structure of the cart terminal. The schematic diagram which shows the state in which the cart terminal is attached to the shopping cart. The schematic diagram which shows the state which is reading and operating the barcode of goods with the cart terminal. The schematic diagram which shows an example of the image image | photographed with the cart terminal. The flowchart which shows the principal process procedure which CPU of the cart terminal performs. The flowchart which shows the process sequence of a shop server when the purchased goods data message is received in the embodiment. The flowchart which shows the process sequence of a shop server when the cancellation goods data message is received in the embodiment. The schematic diagram which shows the example of 1 structure of the table according to cart terminal in the embodiment. The flowchart which shows the process sequence of a shop server when the terminal ID inquiry message is received in the embodiment. The block diagram which shows the principal part structure of the POS terminal used in the same embodiment. The flowchart which shows the principal part process sequence of the scanning process which CPU of the same POS terminal performs. The schematic diagram which shows the structure of the normal goods registration screen displayed on the display of a POS terminal in the embodiment. The schematic diagram which shows the structure of the goods registration screen containing the picked-up image displayed on the display of a POS terminal in the embodiment.

The best mode for carrying out the present invention will be described below with reference to the drawings.
In this embodiment, the present invention is applied to a POS system built in a retail store such as a supermarket where a shopping cart is introduced.

  FIG. 1 is a schematic diagram showing a schematic configuration of a POS system in the present embodiment. This POS system includes a plurality of cart terminals 1. In addition, one or a plurality of wireless base stations 2 capable of wireless data communication with each cart terminal 1, one or a plurality of POS terminals 3 installed at a store cashier (accounting place), a store And a store server 4 that plays a central role in management. The store server 4, each wireless base station 2, and each POS terminal 3 are connected by a LAN (Local Area Network) 5.

  The store server 4 has a function of managing the product master file 6. Moreover, it has the function to update the cart terminal specific table 7 mentioned later timely. In the product master file 6, product setting data such as product name and unit price are stored in advance corresponding to the product-specific product identification codes assigned to the products in order to identify various products. As shown in FIG. 5, for various products 8 sold in stores, a barcode 9 formed by converting a product identification code unique to the product into a barcode is printed on the product body or a barcode label is attached. And so on.

  FIG. 2 is a perspective view showing an external configuration of the cart terminal 1, and FIG. 3 is a block diagram showing a main part configuration of the cart terminal 1. As shown in FIG. 2, the cart terminal 1 has a surface of the housing 10 as an operation panel 11 including various keys 12 and a display unit 13. An antenna 14 and a window 15 are formed on the front surface of the housing 10. As shown in FIG. 3, the cart terminal 1 includes a CPU (Central Processing Unit) 16 constituting a control unit main body, a ROM (Read Only Memory) 17 in which fixed data such as programs are stored in advance, and various data temporarily. In addition to a RAM (Random Access Memory) 18 in which a memory area for storing data is formed, a wireless unit 19 as a communication means for communicating with the store server using wireless, a code for optically reading a barcode A barcode reader 20 as a reading means and a CCD camera 21 as a photographing means for photographing a product are incorporated. Here, the cart terminal 1 functions as a product data processing apparatus of the present invention.

  As shown in FIG. 4, the cart terminals 1 having such a configuration are attached one by one near the product storage unit 30 </ b> A in the shopping cart 30 with the windows 15 facing the product storage unit 30 </ b> A. As shown in FIG. 5, when the barcode 9 attached to the product 8 is directed to the window 15 in a state where the product 8 is separated from the window 15 by a predetermined distance, the bar built in the cart terminal 1 is displayed. The bar code 9 is scanned by the code reader 20 to read bar code data. At the same time, an area including the product 8 is photographed by the CCD camera 21 built in the cart terminal 1. FIG. 6 shows an example of an image G taken by the CCD camera 21. As shown in the figure, the photographed image G is photographed in which the product 8 is held over the window 15 with the barcode 9 facing it.

  A terminal ID unique to the cart terminal 1 is preset in the ROM 17 of each cart terminal 1. A barcode label 22 on which the barcode of the terminal ID is printed is attached to the surface of the operation panel 11. The terminal ID is data assigned in advance so as to be different for each cart terminal 1 and functions as identification information of each cart terminal 1.

  FIG. 7 is a flowchart showing a main part processing procedure executed by the CPU 16 of the cart terminal 1. First, the CPU 16 determines whether or not any key 12 of the operation panel 11 is operated and input as ST (step) 1. If it is determined that the key 12 has not been operated, it is determined whether or not the barcode is read by the barcode reader 20 in ST2. If it is determined that the barcode is not read, the process returns to ST1. That is, the CPU 16 waits for the key 12 to be input or the barcode to be read.

  Here, when it is detected that the key 12 has been operated and input (YES in ST1), the CPU 16 checks the type of the key 12 that has been input as ST3. If the operation key is a cancel key (YES in ST3), the CPU 16 sets a cancel flag in the flag area of the RAM 18 as ST4. If the operation key is a key other than the cancel key, processing corresponding to the type of the key is executed. Thereafter, the process returns to ST1.

  On the other hand, when it is detected that the barcode is read by the barcode reader 20 (YES in ST2), the CPU 16 creates a barcode inquiry message as ST5. This message includes barcode data read by the barcode reader 20. The barcode inquiry message is wirelessly transmitted from the wireless unit 19 to the store server 4 as a destination.

  The inquiry message transmitted wirelessly is received by one of the wireless base stations 2 and transmitted to the store server 4 via the LAN 5. Thereby, in the store server 4, barcode data is acquired from the received inquiry message, and this is analyzed. As a result, if the barcode data is barcode data of a product identification code assigned to each product, the product master file 6 is searched with the product identification code. Then, product setting data such as a product name and unit price set in advance corresponding to the product identification code is read from the product master file 6. Then, a product data response message including the product identification code and product setting data is created and transmitted to a predetermined radio base station 2 via the LAN 5. As a result, the product data response message is wirelessly transmitted from the wireless base station 2 and received by the cart terminal 1 as the inquiry message transmission source.

  When the barcode data is not the barcode data of the product identification code, or when the corresponding product identification code is not set in the product master file 6, the product data response message is not transmitted.

  As described above, when the product identification code corresponding to the barcode data read by the barcode reader 20 of the cart terminal 1 is set in the product master file 6, a product data response message is returned from the store server 4. Is done. However, if it is not set, the product data response message is not returned. Therefore, the CPU 16 of the cart terminal 1 determines whether or not the product data response message has been received as ST6 after transmitting the barcode inquiry message (code determination means). If the product data response message cannot be received within a predetermined time, another process is executed.

  On the other hand, when the product data response message is received within a predetermined time (YES in ST6), the CPU 16 determines whether or not the cancellation flag is set in the flag area of the RAM 18 as ST7. If it is not set, it is considered that the barcode of the product purchased by the customer is read by the barcode reader 20.

  In this case, the CPU 16 outputs a camera photographing signal to the CCD camera 21 as ST8 (photographing means). Thereby, since the CCD camera 21 performs a photographing operation, the CPU 16 acquires imaging data from the CCD camera 21 in ST9. If the photographing data can be acquired, the CPU 16 sounds a read confirmation sound from the barcode reader 20 as ST10 (notification means). Next, the CPU 16 creates a purchased product data message as ST11. This message includes product data (product identification code, product name, unit price) included in the received response message, image data photographed by the CCD camera 21, and a terminal ID stored in the ROM 17. It is. That is, the image data of the product photographed by the CCD camera 21 is processed in association with the product identification code of the product (data processing means). Thereafter, the CPU 16 wirelessly transmits this purchased product data message from the wireless unit 19 to the store server 4 as a destination in ST12.

  On the other hand, if the cancellation flag is set in the flag area of the RAM 18 (YES in ST7), it is considered that the barcode of the product for which the customer has stopped purchasing is read by the barcode reader 20.

  In this case, the CPU 16 sounds a read confirmation sound from the barcode reader 20 as ST13. Next, the CPU 16 creates a canceled product data message as ST14. This message includes the product data (product identification code, product name, unit price) included in the received response message, and the terminal ID stored in the ROM 17. After that, the CPU 16 wirelessly transmits this canceled product data message from the wireless unit 19 to the store server 4 as a destination in ST15. In ST16, the cancel flag is reset from the flag area of the RAM 18.

  Now, the purchased product data message or the canceled product data message wirelessly transmitted from the cart terminal 1 is received by one of the wireless base stations 2 and transmitted to the store server 4 via the LAN 5. Thereby, in the store server 4, the process shown by the flowchart of FIG. 8 or FIG. 9 is performed.

  FIG. 8 is a flowchart showing a processing procedure of the store server 4 when a purchased product data message is received. That is, the store server 4 detects the terminal ID from the purchased product data message received as ST21. Next, in ST22, it is determined whether or not the cart terminal specific table 7 in which the terminal ID is set is already possessed. If the corresponding cart terminal table 7 is not yet possessed (NO in ST23), the store server 4 creates and possesses a new cart terminal table 7 in which the terminal ID is set as ST24. To do.

  FIG. 10 is a schematic diagram showing a configuration example of the cart terminal specific table 7. As shown in the figure, the cart terminal table 7 can store a plurality of product sales data including product identification codes, product names, unit prices, points and amounts for one type of terminal ID together with imaging data. Each total data of points and amount can be calculated. Here, the terminal ID functions as data identification information for identifying image data processed in association with the product identification code by the data processing means of the cart terminal 1.

  Next, the store server 4 stores the product data (product identification code, product name, product name) in the purchased product data message in the cart terminal specific table 7 in which the terminal ID acquired from the purchased product data message received as ST25 is set. Unit price) and points = 1, and money = unit price sales data and imaging data are written in pairs. In ST26, the total data of the points and the amount is calculated from the sales data of the cart terminal specific table 7. Then, in ST27, a process completion response message including this total data is created and transmitted to the predetermined radio base station 2 via the LAN 5. As a result, this processing completion response message is wirelessly transmitted from the wireless base station 2 and received by the cart terminal 1 that has transmitted the purchased product data message.

  FIG. 9 is a flowchart showing a processing procedure of the store server 4 when a cancel product data message is received. That is, the store server 4 detects the terminal ID from the canceled product data message received as ST31. Next, in ST32, it is determined whether or not the cart terminal table 7 in which the terminal ID is set is already possessed. If the corresponding cart terminal table 7 is already possessed (YES in ST33), the store server 4 stores the product data (product identification) in the cart terminal ID table 7 in ST34 as ST34. It is determined whether data matching the code, product name, unit price) is stored.

  Here, when the corresponding product data is stored, the product data and the sales data and the imaging data of the points and amounts stored correspondingly are deleted from the terminal ID table 7. Thereafter, in ST37, the total data of the points and the amount is calculated from the product sales data of the terminal ID table 7. Then, in ST38, a process completion response message including this total data is created and transmitted to the predetermined radio base station 2 via the LAN 5. As a result, the processing completion response message is wirelessly transmitted from the wireless base station 2 and received by the cart terminal 1 that is the transmission source of the canceled commodity data message.

  If there is no cart-specific table 7 in which the terminal ID detected from the received canceled product data message is set (NO in ST33), or the terminal ID detected from the received canceled product data message is set. If the data corresponding to the merchandise data in the canceled merchandise data message is not stored in the table 7 for each cart terminal (NO in ST35), a non-cancelable response message is created as ST39 and predetermined via the LAN 5. To the wireless base station 2. As a result, the cancellation impossible response message is wirelessly transmitted from the wireless base station 2 and received by the cart terminal 1 that is the transmission source of the canceled commodity data message.

  As described above, when the purchased product data message or the canceled product data message is wirelessly transmitted from the cart terminal 1 to the store server 4, a process completion response message including the total data is normally returned from the store server 4. . Therefore, the CPU 16 of the cart terminal 1 waits for this processing completion response message as ST17. If a processing completion response message is received within a predetermined time (YES in ST17), the score and amount data as the total data in this message are displayed on the display unit 13 of the operation panel 11. After that, the process returns to ST1.

  In the present embodiment having the cart terminal 1 configured as described above, the shopper goes around the store while pushing the shopping cart 30 to which the cart terminal 1 is attached. When there is a product 8 that is desired to be purchased, the user holds the product 8 and holds the surface with the barcode 9 over the window 15 of the cart terminal 1.

  As a result, the barcode 9 is read by the barcode reader 20 built in the cart terminal 1. The barcode inquiry message is transmitted to the store server 4. Thereby, in the store server 4, it is determined whether or not a product identification code corresponding to the barcode is stored in the product master file 6. As a result, if stored, a product data response message including product setting data such as product name and unit price set in the product master file 6 corresponding to the product identification code is wirelessly transmitted from the store server 4. Is transmitted.

  This merchandise data response message is received by the cart terminal 1 of the inquiry message transmission source. Then, in the cart terminal 1 that has received this product data response message, the CCD camera 21 automatically performs a photographing operation. As a result, as shown in FIG. 6, the CCD camera 21 captures a state where the product 8 is held with the barcode 9 facing. After shooting, a read confirmation sound is emitted from the barcode reader 20. Therefore, the shopper stores the product 8 held over the window 15 in the product storage unit 30 </ b> A of the cart 30.

  Further, in the cart terminal 1, the purchased product data message is associated with the image data captured by the CCD camera 21 and the product identification code converted from the barcode read by the barcode reader 20 immediately before the image data. Created. Then, the purchased product data message is wirelessly transmitted to the store server 4. As a result, in the store server 4, the merchandise sales data and the image data corresponding to the merchandise identification code, the merchandise name, the unit price, the score, and the amount correspond to the cart terminal specific table 7 formed for each terminal ID unique to the cart terminal 1. Attached and stored.

  Therefore, by causing the bar code reader 20 of the cart terminal 1 to read the bar code 9 of the merchandise 8 purchased by the customer one by one with the bar code reader 20 of the cart terminal 1, merchandise sales data including a merchandise identification code for each merchandise 8 and the merchandise. 8 is associated with image data obtained by shooting a state where the item 8 is held over the barcode reader 20 and stored in the cart terminal table 7 in which the terminal ID of the cart terminal 1 is set.

  When the purchase of the product 8 stored in the product storage unit 30A of the cart 30 is canceled before accounting, after the cancel key of the cart terminal 1 is operated and input, the barcode 9 of the product 8 is read by the barcode reader. 20 for reading. Then, the sales data and the image data related to the product are deleted from the cart terminal specific table 7 in which the terminal ID of the cart terminal 1 is set.

  Now, when the shopper finishes shopping, he pushes the cart 30 for checkout and goes to the cash register. The cash register is provided with a POS terminal 3 that functions as a settlement apparatus in the POS system of the present invention.

  FIG. 12 is a block diagram showing a main configuration of the POS terminal 3. The POS terminal 3 includes a CPU 31, ROM 32 and RAM 33, a clock unit 34 that measures the current date and time, a communication interface 35 that controls data communication with the store server 4 connected via the LAN 5, a numeric keypad, and a closing key. A keyboard 36, an operator display 37, a customer display 38, a printer 39 for printing a receipt, and a barcode reader 40 are provided.

  The POS terminal 3 having such a configuration is configured such that when the barcode is read by the barcode reader 40 constituting the input means, the CPU 31 executes the scanning process shown in the flowchart of FIG.

  That is, the CPU 31 first determines whether or not the barcode read by the barcode reader 40 in ST51 is the barcode of the barcode label 22 affixed to each cart terminal 1, that is, the barcode of the terminal ID. . If it is the barcode of the terminal ID, the CPU 31 creates an inquiry message including the terminal ID obtained by analyzing this barcode as ST52 and transmits it to the store server 4 via the communication interface 35. To do.

  Thereby, in the store server 4, the process shown with the flowchart of FIG. 11 is performed. That is, the store server 4 detects the terminal ID from the inquiry message received as ST41. Then, in ST42, it is determined whether or not there is a cart terminal specific table 7 in which this terminal ID is set. Here, when the terminal table 7 in which the corresponding terminal ID is set exists (YES in ST43), the store server 4 stores the product sales data stored and stored in the cart terminal table 7 as ST44, and The corresponding image data is read out. Then, a response message including these data is created and transmitted via the LAN 5 to the POS terminal 3 as the inquiry message transmission source. Thereafter, the cart terminal specific table 7 is deleted.

  On the other hand, if the corresponding cart terminal table 7 does not exist (NO in ST43), the CPU 31 transmits an error response to the POS terminal 3 as the inquiry message transmission source via the LAN 5 as ST46. In this case, the cart terminal specific table 7 is not deleted.

  Then, CPU31 of the POS terminal 3 which transmitted the inquiry message of terminal ID waits for the response from the store server 4 as ST53. If a data response message including product sales data and corresponding image data is received via the communication interface 35 within a predetermined time, the product sales data and corresponding image data are acquired from the received message. (Data acquisition means). In ST54, a product registration screen including a list of image data is edited and displayed on the operator display 37 and the customer display 38 (display means). Thereafter, when it is detected in ST55 that the confirmation key of the keyboard 36 has been input, the CPU 31 returns the screens of the operator display 37 and the customer display 38 to the normal product registration screen. Then, the process proceeds to the next process, for example, an additional registration process for a shortage product or a settlement process for a commercial transaction.

  Initially, a normal product registration screen 60 having a layout as shown in FIG. 14 is displayed on the operator display 37 and the customer display 38. This screen 60 includes a product description area 61 of the product name, unit price, points, and amount of products that the customer purchases, and the total points, discount total amount, subtotal amount, external tax amount, billing amount, deposit amount and change amount. The transaction details area is formed.

  In this state, when the barcode (terminal ID) of the cart terminal 1 attached to the shopping cart 30 is read by the barcode reader 40, the store server 4 stores and stores it in the cart terminal specific table 7 corresponding to the terminal ID. The merchandise sales data and the image data are read out. Based on this data, a product registration screen 70 including a captured image having a layout as shown in FIG. 15 is displayed on the operator display 37 and the customer display 38. That is, on this screen 70, instead of the product specification area 61, the captured images 71 of the respective image data stored and stored in the cart terminal table 7 are displayed in a list together with the product names 72 corresponding to the image data. .

  As shown in FIG. 6, each captured image 71 shows a state where the product 8 is held with the barcode 9 facing. The product 8 photographed in the photographed image 71 should be stored in the product storage section 30A of the shopping cart 30 if the customer has correctly read the barcode 9 of the product as described above. It is. Therefore, the clerk in charge of the cashier compares and collates the product captured in each captured image 71 with the product stored in the product storage unit 30 </ b> A of the shopping cart 30.

  And when the picked-up image 71 of the goods accommodated in the goods storage part 30A exists, it recognizes that the goods identification code of the goods is already input. On the other hand, when the photographed image 71 of the product stored in the product storage unit 30A does not exist, the product recognizes that the product identification code has not been input. On the other hand, a product that has the captured image 71 but is not present in the product storage unit 30A is recognized as a product that has not been canceled.

  When the comparison is completed, the store clerk presses the confirmation key on the keyboard 36. Then, the screens of the operator display 37 and the customer display 38 return to the normal product registration screen 60 shown in FIG. In the detail area 61 of the registration screen 60, the product name, unit price, score, and amount of product sales data corresponding to the image data of each captured image 71 are displayed.

  Therefore, the store clerk performs an additional registration operation for the product for which the product identification code is not input. In addition, a cancel operation is performed for a product that is canceled. Thus, since the customer's purchased product is confirmed, the closing key is operated to end the commercial transaction with the customer.

  As described above, in the present embodiment, when the customer himself / herself reads and operates the barcode 9 of the purchase target product 8 using the barcode reader 20 of the cart terminal 1, the state is photographed by the CCD camera 21, Since the image is displayed on the operator display 37 of the POS terminal 3 at the time of the transaction of the customer, even if there is a product accommodated in the shopping cart 30 without reading the bar code 9, the cash register It can be easily detected. Therefore, in the system in which the customer himself / herself purchases the barcode of the product to be purchased, fraud such as obtaining the product without entering the barcode can be prevented. In addition, since the state where the barcode is held is also displayed on the customer display 38, the effect of fraud prevention is great.

  In addition, in the present embodiment, only when the reading of the barcode 9 is confirmed in the cart terminal 1, that is, when it is determined that the product identification code corresponding to the barcode is stored in the product master file 6. A photographing operation by the CCD camera 21 is performed. Therefore, there is an effect that the power consumption can be greatly reduced as compared with the prior art that must continuously shoot with a video camera.

  In addition, since the barcode reading confirmation sound is emitted after the photographing by the CCD camera 21 is completed, it is possible to prevent a problem that the customer puts the product 8 in the cart 30 before the photographing is finished.

  Since the image captured by the CCD camera 21 is held as it is and displayed on the POS terminal 3, it is not necessary to perform complicated image processing on the captured image. Therefore, there is an effect that the cost can be reduced as compared with the conventional technique requiring complicated image processing.

  The present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage.

  For example, in the above embodiment, the commodity data processing apparatus of the present invention has been described as the cart terminal 1, but the present invention may be applied to a scanner apparatus in a self-checkout system. Further, the product identification code read by the code reading means is not limited to the barcode, and may be a two-dimensional data code, a character string, or the like. In addition, when a method for individually managing a product by attaching an RFID tag storing a unique ID to each product is introduced, an RFID tag reader that reads data of the RFID tag in a non-contact manner is applied as a code reading unit. be able to.

  In the above embodiment, the case where the CCD camera 21 constituting the imaging means is built in the main body of the cart terminal 1 is shown. However, the CCD camera 21 is separated from the cart terminal 1, and the customer The CCD camera 21 may be attached at a position where the state of reading the barcode 9 can be accurately photographed.

  In the above embodiment, the store server 4 centrally stores and manages the product image data processed by each cart terminal 1 and the sales data of the product. The POS terminal 3 may directly read the data in the memory from each cart terminal 1 and perform a settlement process. Further, even if wireless transmission is performed from each cart terminal 1 to a predetermined monitor and the state where the barcode is held is displayed in real time together with the product data, the effect of preventing fraud is great.

  In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, the constituent elements over different embodiments may be combined.

  DESCRIPTION OF SYMBOLS 1 ... Cart terminal, 2 ... Wireless base station, 3 ... POS terminal, 4 ... Store server, 6 ... Product master file, 7 ... Table according to cart terminal, 30 ... Shopping cart.

Claims (3)

A code reading step in which the customer himself / herself reads the product identification code unique to the product given to the product to be purchased by the customer ;
It is determined whether or not the product identification code read by the customer by the code reading step is stored in a product master file that stores setting data related to the product specified by the product identification code for each product. A code determination step to perform,
Photographing to photograph the product specified by the product identification code in response to the determination by the code determination step that the product identification code read by the customer himself in the code reading step has been stored in the product master file Steps,
A data processing step for storing image data of the product photographed in this photographing step in association with a product identification code of the product;
A display step for displaying the image data of the product stored in association with the product identification code in this data processing step so that the store clerk can confirm,
A product data processing method characterized by comprising:   2. The product data according to claim 1, wherein the area in which the data processing step stores the image data of the product and the product identification code of the product in association with each other is a storage area specified by a device-specific ID. Processing method.   3. The product data processing method according to claim 2, wherein the storage area is formed in a server that manages the product master file.

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