JP7516602B2 - Product registration support device and program - Google Patents

Description

An embodiment of the present invention relates to a product registration support device and program.

In recent years, product registration support systems have been developed that use cart terminals to support the sales registration of products purchased by customers. The cart terminal is equipped with a barcode reader or a wireless tag reader and is attached to a shopping cart. Hereinafter, shopping carts will be referred to as carts. When a customer places an item in the cart, the barcode or wireless tag data attached to the item is read by the barcode reader or wireless tag reader. In this way, a list of the items contained in the cart is created. Identification information for identifying the cart terminal or the customer is associated with the list. The list may be created by the cart terminal, or by a server connected to the cart terminal by wireless communication.

When making a payment at a POS (Point Of Sales) terminal, the identification information of the cart terminal or the customer is entered into the POS terminal. In this way, the POS terminal executes the product sales registration process based on the information described in the list associated with that identification information.

Conventional product registration support systems using cart terminals are based on the premise that each product has a barcode or a wireless tag attached to it. If products do not have a barcode or a wireless tag attached, the purchaser must select the product to purchase from a product list displayed on the touch panel of the cart terminal. This places an increased burden on the customer. However, for example, if a wireless tag were attached to each product, the costs associated with the wireless tags would be enormous.

JP 2011-203058 A

The problem that the embodiments of the present invention aim to solve is to provide a product registration support device and program that can support purchasers in registering products efficiently and at low cost.

In one embodiment, the product registration support device includes a receiver, an acquisition means , a detection means, an addition means, and a display means . The receiver receives electromagnetic waves emitted from a transmitter installed in the display area where the products are displayed. The acquisition means acquires, from the electromagnetic waves received by the receiver, identification information of the products displayed in the display area where the transmitter that emitted the electromagnetic waves is installed . The detection means detects an action of a purchaser removing a product from the display area and storing the product in a container. When the detection means detects the action , the addition means adds a product identified by the identification information acquired by the acquisition means to a list. The display means displays the product name of the product added to the list.

FIG. 2 is a block diagram showing a main circuit configuration of the product registration support device according to the first embodiment. FIG. 13 is a schematic diagram showing an example of attaching a shelf tag. FIG. 13 is a schematic diagram showing an example of attaching a purchase tag and a return tag. FIG. 13 is a schematic diagram showing an example of a consumer wearing a wristwatch-type product registration support device. FIG. 2 is a schematic diagram showing main memory areas of the product registration support device. 4 is a flowchart showing a main procedure of information processing executed by a processor according to a product registration assistance program in the first embodiment. 4 is a flowchart showing a main procedure of information processing executed by a processor according to a product registration assistance program in the first embodiment. 4 is a flowchart showing a main procedure of information processing executed by a processor according to a product registration assistance program in the first embodiment. 4 is a flowchart showing a main procedure of information processing executed by a processor according to a product registration assistance program in the first embodiment. 4 is a flowchart showing a main procedure of information processing executed by a processor according to a product registration assistance program in the first embodiment. 4 is a flowchart showing a main procedure of information processing executed by a processor according to a product registration assistance program in the first embodiment. FIG. 2 is a block diagram showing a main circuit configuration of the product registration support device according to the first embodiment. FIG. 1 is a schematic diagram showing an example of how to attach a cart tag. FIG. 11 is a schematic diagram showing the structure of purchase item data stored in a purchase item memory in the second embodiment; 10 is a flowchart showing a main procedure of information processing executed by a processor according to a product registration assistance program in a second embodiment; 10 is a flowchart showing a main procedure of information processing executed by a processor according to a product registration assistance program in a second embodiment; 10 is a flowchart showing a main procedure of information processing executed by a processor according to a product registration assistance program in a second embodiment;

Below, an embodiment of a product registration support device that can support product registration by purchasers efficiently and at low cost will be described with reference to the drawings. In this embodiment, a purchaser picks up the products he or she wants to purchase from those displayed on the shelves and places them in a container such as a cart or shopping basket. Then, when the purchaser has finished shopping, he or she goes to a cashier where a POS terminal is installed and pays for the purchased products.

[First embodiment]
First, the first embodiment will be described with reference to FIGS.
1 is a block diagram showing the main circuit configuration of a product registration support device 10 according to the first embodiment. The product registration support device 10 is a wearable computer that can be carried around by a consumer. Specifically, the product registration support device 10 is in the form of a wristwatch and is worn on the consumer's wrist.

The product registration support device 10 includes a processor 11, a main memory 12, an auxiliary storage device 13, a wireless unit 14, a display 15, an LED (Light Emitting Diode) circuit 16, a wireless tag reader 17, and a system transmission path 18. The system transmission path 18 includes an address bus, a data bus, a control signal line, and the like. In the product registration support device 10, the processor 11, the main memory 12, the auxiliary storage device 13, the wireless unit 14, the display 15, the LED circuit 16, and the wireless tag reader 17 are connected to the system transmission path 18. In the product registration support device 10, the processor 11, the main memory 12, the auxiliary storage device 13, and the system transmission path 18 that connects them together constitute a computer.

The processor 11 corresponds to the central part of the computer. The processor 11 controls each part to realize various functions of the product registration support device 10 according to an operating system or an application program. The processor 11 is, for example, a CPU (Central Processing Unit).

The main memory 12 corresponds to the main storage portion of the computer. The main memory 12 includes a nonvolatile memory area and a volatile memory area. The main memory 12 stores an operating system or application programs in the nonvolatile memory area. The main memory 12 may also store data required for the processor 11 to execute processes for controlling each part in a nonvolatile or volatile memory area. The main memory 12 uses the volatile memory area as a work area where data is appropriately rewritten by the processor 11. The nonvolatile memory area is, for example, a ROM (Read Only Memory). The volatile memory area is, for example, a RAM (Random Access Memory).

The auxiliary storage device 13 corresponds to the auxiliary storage portion of the computer. For example, the auxiliary storage device 13 may be an EEPROM (Electric Erasable Programmable Read-Only Memory), a HDD (Hard Disk Drive), or an SSD (Solid State Drive). The auxiliary storage device 13 stores data used by the processor 11 when performing various processes, data created by the processes in the processor 11, etc. The auxiliary storage device 13 may also store the application programs described above.

The wireless unit 14 performs data communication with the POS terminal 20 via a wireless LAN (Local Area Network) that employs a standard specification such as Wi-Fi (registered trademark). The POS terminal 20 is usually installed at the checkout counter of a store. The cashier, who is the clerk in charge of the checkout, operates the POS terminal 20 to register the sales of the products purchased by the customer and then performs the checkout process to settle the commercial transaction with the customer. The wireless unit 14 may perform data communication directly with the POS terminal 20. The wireless unit 14 may perform data communication with the POS terminal 20 via a base station. The wireless unit 14 may perform data communication with the POS terminal 20 via a server connected to the base station. The wireless unit 14 may perform wireless communication with electronic devices other than the POS terminal 20.

The display 15 is a display device of the product registration support device 10. The display 15 is capable of displaying the product name, price, etc. As the display 15, a liquid crystal display, an organic EL (Electro Luminescence) display, etc. may be used. The display 15 may have a touch panel function.

The LED circuit 16 controls the turning on and off of the first LED 161 and the second LED 162. The first LED 161 and the second LED 162 have different light emission colors. The light emission colors are not particularly limited. For example, the first LED may be a red LED and the second LED may be a yellow-green LED. LEDs of other colors may be used as the first LED 161 or the second LED 162. The number of LEDs controlled by the LED circuit 16 is not limited to two. The LED circuit 16 may control the turning on and off of only one LED or three or more LEDs.

The wireless tag reader 17 reads data from the IC (Integrated Circuit) memory of the wireless tag 30 through non-contact wireless communication with the wireless tag 30. The wireless tag reader 17 is equipped with an antenna, and when this antenna approaches the antenna of the wireless tag 30 to within about 20 cm, the data of the wireless tag 30 is read using an electromagnetic induction method.

The wireless tag 30 is a type of transmitter that emits electromagnetic waves, and is also called an ID (Radio Frequency Identification), electronic tag, IC tag, etc. In this embodiment, a unique name is given to the wireless tag 30 depending on the application. That is, in this embodiment, a store entry tag 31, a POS tag 32, a shelf tag tag 33, a purchase tag 34, and a return tag 35 are used.

The store entry tag 31 is placed near the entrance of the store. The store entry tag 31 transmits electromagnetic waves including data indicating that a customer has entered the store. The content of the data is not particularly limited. What is important is that the processor 11 of the product registration support device 10, which reads the data of the store entry tag 31 via the wireless tag reader 17, can identify that the data is from the store entry tag 31. The location of the store entry tag 31 is preferably a location where the wireless tag reader 17 can read the data of the store entry tag 31 when a customer wearing the product registration support device 10 takes out a cart or shopping basket placed near the store entrance. The location of the store entry tag 31 may be a location where the wireless tag reader 17 can read the data of the store entry tag 31 when the customer takes out the cart or shopping basket by bringing the product registration support device 10 worn by the customer close to the store entry tag 31.

A POS tag 32 is provided for each POS terminal 20. The POS tag 32 emits electromagnetic waves including identification information for identifying the POS terminal 20. Hereinafter, this type of identification information will be referred to as a POSID. The POSID is different for each POS terminal 20. The data structure of the POSID is not particularly limited. What is important is that the processor 11 of the product registration support device 10, which reads the data of the POS tag 32 via the wireless tag reader 17, can identify the POS terminal 20. The POS tag 32 is preferably attached in a location where the wireless tag reader 17 can read the data of the POS tag 32 when a purchaser wearing the product registration support device 10 arrives at the checkout area to make payment. The location of the POS tag 32 may be a location where the wireless tag reader 17 can read the data of the POS tag 32 by bringing the product registration support device 10 worn by the purchaser close to the POS tag 32 when the purchaser arrives at the checkout area.

As shown in FIG. 2, the shelf label tag 33 is provided for each shelf label 42 provided in each section 41 of the product shelf 40 where products are displayed. The product shelf 40 is divided into multiple sections 41 by partition boards 43. One item of product is displayed in each section 41. In other words, the section 41 is a display location for products. The shelf label 42 displays the product name, price, etc. of the product displayed in the section 41 in which the shelf label 42 is provided. The shelf label 42 is preferably an electronic shelf label. The shelf label 42 may be a paper label type. If products displayed in adjacent sections are not mixed together, the partition board 43 may be omitted.

The shelf label tag 33 emits electromagnetic waves including data related to the product displayed in the corresponding section 41. The data includes product identification information, product name, and price. Hereinafter, the product identification information is referred to as a product ID. The product ID differs for each type of product. The data structure of the product ID is not particularly limited. In short, it is sufficient that the processor 11 of the product registration support device 10, which reads the data of the shelf label tag 33 via the wireless tag reader 17, can identify the product. The shelf label tag 33 is preferably attached to a location where the wireless tag reader 17 can read the data of the shelf label tag 33 by the consumer reaching out to the product shelf 40 to take the product out of the section 41. The shelf label tag 33 may also be attached to a location where the wireless tag reader 17 can read the data of the shelf label tag 33 by bringing the product registration support device 10, which the consumer is wearing, close to the shelf when taking the product out of the section 41.

The purchase tag 34 and the return tag 35 are attached to the shopping basket 50 as shown in FIG. 3. The shopping basket 50 functions as a container for storing and transporting products purchased by a consumer. The purchase tag 34 emits electromagnetic waves including data indicating that the products stored in the shopping basket 50 are purchased products. The content of the data is not particularly limited. What is required is that the processor 11 of the product registration support device 10, which reads the data of the purchase tag 34 via the wireless tag reader 17, can identify that the data is that of the purchase tag 34. The return tag 35 emits radio waves including data indicating that the product removed from the shopping basket 50 is a return product. The content of the data is not particularly limited. What is required is that the processor 11 of the product registration support device 10, which reads the data of the return tag 35 via the wireless tag reader 17, can identify that the data is that of the return tag 35.

In FIG. 3, the purchase tag 34 is provided on the outside of one side 51 of the four sides 51, 52, 53, and 54 that form the shopping basket 50. The return tag 35 is provided on the outside of the side 53 opposite the side 51. The attachment locations of the purchase tag 34 and the return tag 35 are not limited to the locations exemplified in FIG. 3. The attachment location of the purchase tag 34 is preferably a location where the wireless tag reader 17 can read the data of the purchase tag 34 when a purchaser wearing the product registration support device 10 places a product taken from the product shelf 40 in the shopping basket 50. The attachment location of the purchase tag 34 may be a location where the wireless tag reader 17 can read the data of the purchase tag 34 by bringing the product registration support device 10 worn by the purchaser close when putting the product in the shopping basket 50. The return tag 35 is preferably attached to a location where the wireless tag reader 17 can read the data of the return tag 35 when a consumer wearing the product registration support device 10 removes the product from the shopping basket 50. The return tag 35 may also be attached to a location where the wireless tag reader 17 can read the data of the return tag 35 when the consumer brings the product registration support device 10 close to the product when removing the product from the shopping basket 50.

Here, the shelf tag 33 functions as a first transmitter. The purchase tag 34 functions as a second transmitter. The return tag 35 functions as a third transmitter. The wireless tag reader 17 functions as a receiver.

Figure 4 is a schematic diagram showing an example of a wristwatch-type product registration support device 10 worn by a consumer. The product registration support device 10 is formed of a thin, rectangular housing 100 and belts 101 attached to a pair of short sides of the housing 100. The consumer can wear the product registration support device 10 by wrapping the belt 101 around the wrist 60.

The housing 100 is equipped with the processor 11, main memory 12, auxiliary storage device 13, wireless unit 14, display 15, LED circuit 16, wireless tag reader 17, etc. described above. The screen 151 of the display 15, the first LED 161, and the second LED 162 are arranged on the surface of the housing 100. The positional relationship between the screen 151 of the display 15, the first LED 161, and the second LED 162 is not limited to the location illustrated in FIG. 4. The point is that it should be in a location where a purchaser wearing the product registration support device 10 can easily check the displayed content.

Now, in order to support product registration by purchasers efficiently and at low cost, the product registration support device 10 forms a buffer memory 71, a status memory 72, and a purchases memory 73 in a volatile area of the main memory 12, as shown in FIG. 5. The buffer memory 71 is an area for temporarily storing data read from the wireless tag 30 via the wireless tag reader 17. The status memory 72 is an area for storing status data ST that indicates the state of the purchaser. The status data ST can be "0" that indicates before entering the store, "1" that indicates shopping, "2" that indicates purchase, or "3" that indicates return. The purchases memory 73 can store multiple pieces of purchases data, such as product IDs, product names, and prices. In other words, the purchases memory 73 is an area for storing a list of purchases data.

The processor 11 uses the buffer memory 71, the status memory 72, and the purchased item memory 73 when executing information processing according to the product registration assistance program. The product registration assistance program is a type of application program stored in the main memory 12 or the auxiliary storage device 13.

FIGS. 6 to 11 are flow charts showing the main steps of the information processing executed by the processor 11 in accordance with the product registration support program. Below, the main operations of the product registration support device 10 are explained using the flow charts in FIG. 6 to FIG. 11. Note that the operations explained below are merely examples. As long as similar results can be obtained, the procedures and contents of the operations are not particularly limited.

In Act 1, the processor 11 checks whether the data of the wireless tag 30 has been read. If the data of the wireless tag 30 has not been read, the processor 11 determines NO in Act 1 and returns to Act 1. That is, the processor 11 continues to wait for the data of the wireless tag 30 to be read.

When the data of the wireless tag 30 is read via the wireless tag reader 17, the processor 11 judges YES in Act 1 and proceeds to Act 2. The processor 11 analyzes the data of the wireless tag 30 in Act 2. Then, the processor 11 checks whether the analyzed data is data of the store entry tag 31 in Act 3. If it is not data of the store entry tag 31, the processor 11 judges NO in Act 3 and proceeds to Act 4. The processor 11 checks whether the analyzed data is data of the shelf tag tag 33 in Act 4. If it is not data of the shelf tag tag 33, the processor 11 judges NO in Act 4 and proceeds to Act 5. The processor 11 checks whether the analyzed data is data of the purchase tag 34 in Act 5. If it is not data of the purchase tag 34, the processor 11 judges NO in Act 5 and proceeds to Act 6. The processor 11 checks whether the analyzed data is data of the return tag 35 in Act 6. If the data is not data of the return tag 35, the processor 11 judges NO in Act 6 and proceeds to Act 7. The processor 11 checks whether the analyzed data is data of the POS tag 32 in Act 7. If the data is not data of the POS tag 32, the processor 11 judges NO in Act 7 and returns to Act 1. That is, if the processor 11 reads data of a wireless tag 30 other than the store entry tag 31, shelf label tag 33, purchase tag 34, return tag 35, or POS tag 32, it discards the analyzed data and continues to wait for the wireless tag data to be read again.

When a customer comes to the store, he or she wears the product registration support device 10 around the wrist as shown in FIG. 4. The store may lend the product registration support device 10 to customers, or the store may sell the product registration support device 10 to the customer. The customer wearing the product registration support device 10 picks up a shopping basket 50 from a pile of shopping baskets 50 near the store entrance. When the customer does this, the product registration support device 10 reads the data on the store entry tag 31 with the wireless tag reader 17.

When the data on the store entry tag 31 is read, the processor 11 determines YES in Act 3 and proceeds to Act 11 in FIG. 7. In Act 11, the processor 11 checks whether the status ST written in the status memory 72 is "0", which indicates before entering the store. If the status ST is "0", the processor 11 performs initialization in Act 12. This initialization clears the areas of the buffer memory 71 and the purchase item memory 73.

In Act 13, the processor 11 controls the display of the start of shopping. For example, the processor 11 controls the LED circuit 16 so that the first LED 161 and the second LED 162 flash alternately multiple times. For example, the processor 11 controls the display 15 so that a guidance is displayed on the screen 151 instructing the purchaser to start shopping. In Act 14, the processor 11 changes the status ST to "1" which indicates that shopping is in progress. After that, the processor 11 returns to Act 1 and continues to wait for the wireless tag 30 to be read.

If the status ST is not "0" in Act 11, which indicates that the user has not yet entered the store, the processor 11 determines that the result is NO and skips the processing of Acts 12 to 14. The processor 11 returns to Act 1 and continues to wait for the wireless tag 30 to be read.

In this way, when the wireless tag reader 17 reads the data on the store entry tag 31, the product registration support device 10 displays a message instructing the purchaser to start shopping. Therefore, after checking the display, the purchaser picks up the shopping basket 50 and starts shopping. At this time, the purchaser may start shopping while holding the shopping basket 50 in their hand, or may start shopping while placing the shopping basket 50 in a cart.

When a customer starts shopping, they remove the products they wish to purchase from the product shelf 40 one by one and place them in the shopping basket 50. At this time, the customer extends their hand, which is wearing the product registration support device 10, and removes the products from the section 41 where the products are displayed. During this action of the customer, the product registration support device 10 uses the wireless tag reader 17 to read the data of the shelf tag 33 from the shelf tag 42 installed in the section 41.

When the data of the shelf label tag 33 is read, the processor 11 determines YES in Act 4 and proceeds to Act 21 in FIG. 8. The processor 11 checks whether the status ST written in the status memory 72 is "1" indicating that shopping is in progress in Act 21. If the status ST is "1", the processor 11 stores the data of the shelf label tag 33 read by the wireless tag reader 17 in the buffer memory 71 in Act 22. The data of the shelf label tag 33 includes the product ID, product name, and price of the product displayed on the shelf label 42 to which the shelf label tag 33 is attached.

In Act 23, the processor 11 controls the display of the purchase mode. For example, the processor 11 controls the LED circuit 16 so that the first LED 161 is turned on. In Act 24, the processor 11 changes the status ST to "2", which indicates a purchase. After that, the processor 11 returns to Act 1 and continues to wait for the wireless tag 30 to be read.

If the status ST is not "1" indicating that shopping is in progress in Act 21, the processor 11 determines NO and proceeds to Act 31. The processing from Act 31 onwards will be described later.

The purchaser who removes the product from the section 41 checks that the first LED 161 is lit. If the first LED 161 is not lit, the purchaser brings the product registration support device 10 close to the shelf tag 42 and has the wireless tag reader 17 read the data on the shelf tag 33.

When the purchaser confirms that the first LED 161 is lit, he or she places the product in the shopping basket 50. In doing so, the purchaser brings the product registration support device 10 close to the purchase tag 34 and then places the product in the shopping basket 50. When the purchaser performs such an action, the product registration support device 10 reads the data of the purchase tag 34 from the shopping basket 50 using the wireless tag reader 17.

When the data of the purchase tag 34 is read, the processor 11 determines YES in Act 5 and proceeds to Act 41 in FIG. 9. The processor 11 checks whether the status ST written in the status memory 72 in Act 41 is "2" indicating a purchase. If the status ST is "2" indicating a purchase, the processor 11 determines YES in Act 41 and proceeds to Act 42. The processor 11 writes the data of the shelf label tag 33 written in the buffer memory 71 in the purchased item memory 73 in Act 42. That is, the processor 11 adds the purchased item data consisting of the item ID, item name, and price to the purchased item memory 73. The processor 11 clears the buffer memory 71 in Act 43.

The processor 11 controls the display 15 in Act 44 so that the product name and price of the purchase data added to the purchase memory 73 are displayed on the screen 151. As a result of this control, the product name and price of the product placed in the shopping cart 50 are displayed on the screen 151. The processor 11 controls the display to erase the purchase mode display in Act 45. As a result of this control, the first LED 161 is turned off.

The processor 11 changes the status ST to "1" in Act 46, which indicates that shopping is in progress. The processor 11 then returns to Act 1 and continues to wait for the wireless tag 30 to be read.

If the status ST is not "2" indicating a purchase in Act 41, the processor 11 determines that the result is NO and skips the processing of Acts 42 to 45. The processor 11 returns to Act 1 and continues to wait for the wireless tag 30 to be read.

In this way, the processor 11 executes the processes of Act 1, Act 2, Act 4, Act 21 and Act 22 to obtain, from the electromagnetic waves received by the wireless tag reader 17, the product ID of the product displayed in the section 41 of the product shelf 40 in which the shelf label tag 33 that transmitted the electromagnetic waves is provided. Here, the computer mainly including the processor 11 functions as an obtaining means.

The processor 11 also executes the processes of Act 24, Act 1, Act 2, Act 5 and Act 41 to detect a first action of the purchaser removing a product from the section 41 and placing the product in the shopping basket 50. Specifically, the processor 11 detects the first action in response to the wireless tag reader 17 receiving electromagnetic waves transmitted from the shelf label tag 33 and then receiving electromagnetic waves transmitted from the purchase tag 34. Here, the computer mainly including the processor 11 functions as a first detection means.

In addition, when the first action is detected by the first detection means, the processor 11 executes the process of Act 42 to add purchase data including the product ID, product name, and price of the product identified by the product ID acquired by the acquisition means to the purchase memory 73. Here, the computer including the processor 11 functions as an adding means.

The purchaser repeats the first action every time he finds a product to purchase. However, sometimes the purchaser returns a product that was once placed in the shopping basket 50 back to the product shelf 40 during shopping. In such a case, the purchaser removes the product to be returned from the shopping basket 50 with the hand wearing the product registration support device 10. The purchaser then brings the product registration support device 10 close to the return tag 35 of the shopping basket 50. During this action by the purchaser, the product registration support device 10 reads the data of the return tag 35 with the wireless tag reader 17.

When the data of the return tag 35 is read, the processor 11 judges as YES in Act 6 and proceeds to Act 51 in FIG. 10. In Act 51, the processor 11 checks whether the status ST written in the status memory 72 is "1" indicating a purchase. If the status ST is "1" indicating a purchase, the processor 11 judges as YES in Act 51 and proceeds to Act 52. In Act 52, the processor 11 checks whether purchase data is stored in the purchase memory 73.

If the purchase item data is stored in the purchase item memory 73, the processor 11 determines YES in Act 52 and proceeds to Act 53. The processor 11 controls the display of the return mode in Act 53. For example, the processor 11 controls the LED circuit 16 so that the second LED 162 is turned on. The processor 11 changes the status ST to "3" indicating return in Act 54. After that, the processor 11 returns to Act 1 and continues to wait for the wireless tag 30 to be read.

If the status ST is not "1" indicating shopping in Act 51, the processor 11 judges the result as NO, skips the processing of Act 52 and Act 53, and returns to Act 1. If the purchase data is not stored in the purchase memory 73 in Act 52, the processor 11 skips the processing of Act 53 and Act 53, and returns to Act 1.

When the customer removes the product to be returned from the shopping basket 50, the customer confirms that the second LED 162 is lit. If the second LED 162 is not lit, the customer brings the product registration support device 10 close to the return tag 35 and has the wireless tag reader 17 read the data on the return tag 35.

When the purchaser confirms that the second LED 162 is lit, he or she reaches out to the product shelf 40 and returns the product to the corresponding section 41. When the purchaser does this, the wireless tag reader 17 of the product registration support device 10 reads the data of the shelf tag 33 of the shelf tag 42 installed in that section 41.

When the data of the shelf label tag 33 is read, the processor 11 judges YES in Act 4 and proceeds to Act 21 in FIG. 8. The processor 11 checks whether the status ST written in the status memory 72 as Act 21 is "1", which indicates shopping in progress. At this time, the status ST is "3", which indicates a return. Therefore, the processor 11 judges NO in Act 21 and proceeds to Act 31. The processor 11 checks whether the status ST written in the status memory 72 as Act 31 is "3", which indicates a return.

If the status ST is "3", the processor 11 determines YES in Act 31 and proceeds to Act 32. In Act 32, the processor 11 stores the data of the shelf label tag 33 read by the wireless tag reader 17 in the buffer memory 71. The data of the shelf label tag 33 includes the product ID, product name, and price of the product whose product name and price are displayed on the shelf label 42 to which the shelf label tag 33 is attached.

In Act 33, the processor 11 searches the purchase memory 73 for the data stored in the buffer memory 71. In Act 34, the processor 11 checks whether or not there is purchase data in the purchase memory 73 whose product ID, product name, and price match those of the data stored in the buffer memory 71.

If matching purchase item data is present, the processor 11 determines YES in Act 34 and proceeds to Act 35. In Act 35, the processor 11 deletes the purchase item data with matching item ID, item name, and price from the purchase item memory 73. In Act 36, the processor 11 controls the display 15 so that the item name of the returned item is displayed on the screen 151. As a result of this control, the screen 151 displays the item name of the item that was returned from the shopping basket 50 to the product shelf 40. In Act 37, the processor 11 controls so that the display of the return mode is erased. As a result of this control, the second LED 162 is turned off.

The processor 11 changes the status ST to "1" indicating that shopping is in progress in Act 38. The processor 11 also clears the buffer memory 71 in Act 39. After that, the processor 11 returns to Act 1 and continues to wait for the wireless tag 30 to be read.

If there is no matching purchase item data in Act 34, the processor 11 judges the result as NO in Act 34, skips the processing of Acts 35 to 38, and proceeds to Act 39. In Act 39, the processor 11 clears the buffer memory 71 and returns to Act 1. Also, if the status ST is not "3" in Act 31, which indicates a return, the processor 11 judges the result as NO and returns to Act 1.

In this way, the processor 11 executes the processes of Act 1, Act 2, Act 6, Act 51, Act 52, and Act 54, and the processes of Act 1, Act 2, Act 4, and Act 31, thereby detecting the second action of the purchaser returning the items contained in the shopping basket 50 to the original section 41. Specifically, the processor 11 detects the second action in response to the wireless tag reader 17 receiving electromagnetic waves transmitted from the shelf label tag 33 after receiving electromagnetic waves transmitted from the return tag 35. Here, the computer mainly including the processor 11 functions as a second detection means.

Furthermore, when the second action is detected by the second detection means, the processor 11 executes the processes of Act 33 to Act 35 to delete the product identified by the shelf label ID acquired by the acquisition means from the purchased product memory 73. Here, the computer including the processor 11 as a main component functions as the deletion means.

After completing their shopping, the customer goes to the checkout area to make the payment. The customer then brings the product registration support device 10 close to the POS tag 32 that corresponds to the POS terminal 20 installed at that checkout area. This action by the customer causes the product registration support device 10 to read the data on the POS tag 32 with the wireless tag reader 17.

When the data of the POS tag 32 is read, the processor 11 judges YES in Act 7 and proceeds to Act 61 in FIG. 11. In Act 61, the processor 11 checks whether the status ST written in the status memory 72 is "1", which indicates a purchase. If the status ST is "1", the processor 11 checks whether purchase data is stored in the purchase memory 73 in Act 62.

If purchase data is stored in the purchase memory 73, the processor 11 makes a connection request to the wireless unit 14 to the POS terminal 20 in Act 63. In response to this connection request, the wireless unit 14 establishes a wireless connection with the POS terminal 20 identified by the POS ID, which is data in the POS tag 32.

In Act 64, the processor 11 checks whether a wireless line with the POS terminal 20 is connected. If a wireless line is connected, the processor 11 determines YES in Act 64 and proceeds to Act 65. In Act 65, the processor 11 controls the wireless unit 14 to transmit the purchase item data stored in the purchase item memory 73 to the POS terminal 20. With this control, the wireless unit 14 wirelessly transmits the purchase item data to the POS terminal 20.

In Act 66, the processor 11 checks whether the purchase data has been transmitted normally. If the purchase data has been transmitted normally, the processor 11 determines YES in Act 66 and proceeds to Act 67. In Act 67, the processor 11 changes the status ST to "0" which indicates that the customer has not yet entered the store. The processor 11 then returns to Act 1 and continues to wait for the wireless tag 30 to be read.

If the purchase item data has not been successfully transmitted, the processor 11 judges NO in Act 66, skips the processing of Act 67, and returns to Act 1. If the line connection with the POS terminal 20 has failed, the processor 11 judges NO in Act 64, skips the processing of Act 65 to Act 67, and returns to Act 1. If the purchase item data is not stored in the purchase item memory 73, the processor 11 judges NO in Act 62, skips the processing of Act 63 to Act 67, and returns to Act 1. If the status ST is not "1", the processor 11 judges NO in Act 61, skips the processing of Act 62 to Act 67, and returns to Act 1.

In this way, the processor 11 executes the processes of Act 1, Act 2, Act 7, Act 61 to Act 65, thereby outputting the purchase item data stored in the purchase item memory 73 to the POS terminal 20. Here, the computer including the processor 11 as a main component functions as an output means.

In the POS terminal 20, the purchase data received from the product registration support device 10 is stored in the transaction memory. In addition, a list of product names, prices, etc. included in the purchase data is displayed on the display for the cashier. The cashier checks the list against the products contained in the shopping basket 50. If the list matches the products in the shopping basket 50, the cashier operates the accounting key. When the accounting key is operated, the POS terminal 20 executes a sales registration process based on the purchase data stored in the transaction memory.

In this way, the purchaser simply takes out a product displayed on the product shelf 40 with the hand wearing the product registration support device 10 near the wrist and places it in the shopping basket 50, and the purchase data related to that product is stored in the purchase item memory 73 of the product registration support device 10. The purchase item data stored in the purchase item memory 73 is used in the sales registration process performed by the POS terminal 20. Furthermore, there is no need to attach a wireless tag 30 to each product displayed on the product shelf 40. In addition, even for products that do not have barcodes, such as fresh food, there is no need for the complicated operation of selecting the product to be purchased from a product list. Therefore, it is possible to provide a product registration support device 10 that can support product registration by purchasers efficiently and at low cost.

When a purchaser removes a product from the product shelf 40, the purchaser brings the product registration support device 10 close to the shelf label tag 33 of the shelf label 42 corresponding to that product. Next, when placing the product in the shopping basket 50, the purchaser brings the product registration support device 10 close to the purchase tag 34 attached to the shopping basket 50. By simply performing this action, the purchase data related to that product is stored in the purchase memory 73. Therefore, since all that is required other than the product registration support device 10 is the wireless tag 30 such as the shelf label tag 33 and purchase tag 34, the system can be easily introduced in stores such as supermarkets or convenience stores.

In addition, the purchaser can simply remove an item from the shopping basket 50 with the hand wearing the product registration support device 10 near the wrist and return it to its original section 41 on the product shelf 40, and the purchase data relating to that item will be deleted from the purchase item memory 73 of the product registration support device 10. Therefore, even if the purchaser cancels a purchase of an item before payment, the purchaser can simply return the item to its original section 41, without imposing a burden on the purchaser.

Furthermore, before returning an item from the shopping basket 50 to the product shelf 40, the purchaser brings the product registration support device 10 close to the return tag 35 attached to the shopping basket 50. Next, when returning the item to the product shelf 40, the purchaser brings the product registration support device 10 close to the shelf label tag 33 of the shelf label 42. By simply performing this action, the purchase data related to the item is deleted from the purchase memory 73. Therefore, by simply providing the return tag 35 in addition to the shelf label tag 33 and purchase tag 34, the purchaser can handle returns before payment by themselves.

In addition, the purchaser only needs to wear the product registration support device 10 near their wrist, and no special operations are required on the product registration support device 10. Therefore, the burden on the purchaser is significantly reduced compared to when a product registration support system is constructed using a cart terminal.

Second Embodiment
Next, a second embodiment will be described with reference to Figures 12 to 17. Note that parts common to the first embodiment are given the same reference numerals, and detailed description thereof will be omitted.
Fig. 12 is a block diagram showing the main circuit configuration of the product registration support device 10 in the second embodiment. As is clear from comparison with Fig. 1, the hardware configuration of the product registration support device 10 is the same in the first and second embodiments. In the first embodiment, the wireless communication device to which the wireless unit 14 is connected via a wireless line is the POS terminal 20, but in the second embodiment, it is the cart terminal 80. Also, in the first embodiment, the POS tag 32 was used as the wireless tag 30 read by the wireless tag reader 17, but in the second embodiment, a cart tag 36 is used instead of the POS tag 32.

The cart terminal 80 is a wireless communication device that is attached to a cart known as a shopping cart. The cart terminal 80 has a function of receiving purchase item data wirelessly transmitted from the product registration support device 10 and storing it in a memory unit, and a function of transferring the purchase item data stored in the memory unit to the POS terminal 20. Data transfer to the POS terminal 20 may be wired or wireless. Data may also be transferred directly to the POS terminal 20 or via a server. For example, well-known wireless communication devices such as smartphones and tablet terminals are used as the cart terminal 80.

The cart tag 36 is provided on the cart terminal 80. The cart tag 36 emits electromagnetic waves including identification information that identifies the cart terminal 80. Hereinafter, this type of identification information is referred to as a cart ID. The cart ID is different for each cart terminal 80. The data structure of the cart ID is not particularly limited. What is important is that the processor 11 of the product registration support device 10, which reads the data of the cart tag 36 via the wireless tag reader 17, can identify the cart terminal 80. The cart tag 36 is preferably attached to a location where the wireless tag reader 17 can read the data of the cart tag 36 when a purchaser wearing the product registration support device 10 brings the product registration support device 10 close to the cart terminal 80.

Figure 13 shows an example of a cart tag 36 provided on a cart terminal 80. As shown in the figure, the cart tag 36 is attached to a portion of the same surface as the screen of the display device 81 of the cart terminal 80.

Figure 14 is a schematic diagram showing the structure of data stored in the purchase memory 73 in the second embodiment. As shown in the figure, in the second embodiment, a sent flag F is added to purchase data consisting of a product ID, product name, price, etc. The sent flag F is one-bit data that identifies whether the corresponding purchase data has been sent to the cart terminal 80. In this embodiment, the sent flag F indicating unsent is set to "0", and the sent flag F indicating sent is set to "1". The sent flag F may be set to "0" or "1" inversely.

Figures 15 to 17 are flow diagrams showing the main steps of the information processing executed by the processor 11 in accordance with the product registration support program in the second embodiment. Incidentally, Figure 15 corresponds to Figure 6 in the first embodiment, Figure 16 corresponds to Figure 9 in the first embodiment, and Figure 17 corresponds to Figure 11 in the first embodiment. Below, the main operations of the product registration support device 10 in the second embodiment will be explained using the flow diagrams in Figures 15 to 17. Note that the operations explained below are just an example. The procedures and contents of the operations are not particularly limited as long as similar results can be obtained.

The processor 11 continues to wait for the data of the wireless tag 30 to be read as Act 1. When the data of the wireless tag 30 is read via the wireless tag reader 17, the processor 11 analyzes the data of the wireless tag 30 as Act 2. Then, if the data analyzed as Act 3 is data of the store entry tag 31, the processor 11 executes the process of the procedure shown in FIG. 7 as in the first embodiment. If the data analyzed as Act 4 is data of the shelf label tag 33, the processor 11 executes the process of the procedure shown in FIG. 8 as in the first embodiment. If the data analyzed as Act 6 is data of the return tag 35, the processor 11 executes the process of the procedure shown in FIG. 10 as in the first embodiment.

On the other hand, if the data analyzed in Act 5 is data of the purchase tag 34, the processor 11 determines YES in Act 5 and proceeds to Act 41 in FIG. 16. The processor 11 checks whether the status ST described in the status memory 72 in Act 41 is "2" indicating a purchase. If the status ST is "2" indicating a purchase, the processor 11 describes the data of the shelf label tag 33 described in the buffer memory 71, that is, the purchase data consisting of the product ID, product name, and price, in the purchase memory 73 in Act 42. Furthermore, the processor 11 adds a sent flag F indicating "0" to the purchase data in Act 71. After that, the processor 11 executes the same processes as those in the first embodiment in Acts 43 to 46.

If the data analyzed in Act 6 is not data of the return tag 35, the processor 11 judges Act 6 as NO and proceeds to Act 8. The processor 11 checks whether the data analyzed in Act 8 is data of the cart tag 36. If the analyzed data is not data of the cart tag 36, the processor 11 judges Act 8 as NO and returns to Act 1.

If the analyzed data is data of the cart tag 36, the processor 11 determines YES in Act 8 and proceeds to Act 61 in FIG. 17. In Act 61, the processor 11 checks whether the status ST written in the status memory 72 is "1", which indicates a purchase. If the status ST is "1", the processor 11 checks whether purchase data is stored in the purchase memory 73 in Act 62.

When purchase item data is stored in the purchase item memory 73, the processor 11 makes a connection request to the wireless unit 14 to the cart terminal 80 in Act 81. In response to this connection request, the wireless unit 14 establishes a wireless line with the cart terminal 80 identified by the cart ID, which is data in the cart tag 36.

In Act 82, the processor 11 checks whether or not a wireless line with the cart terminal 80 has been connected. If the wireless line has been connected, the processor 11 determines YES in Act 82 and proceeds to Act 83. In Act 83, the processor 11 obtains purchase item data for which the transmitted flag F is set to "0" (not transmitted) from among the purchase item data stored in the purchase item memory 73.

The processor 11 checks whether or not there is any purchase item data for which the transmitted flag F is set to "0" for untransmitted data in Act 84. If there is any corresponding purchase item data, the processor 11 determines YES in Act 84 and proceeds to Act 85. The processor 11 controls the wireless unit 14 to transmit the corresponding purchase item data to the cart terminal 80 in Act 85. Through this control, the wireless unit 14 wirelessly transmits the purchase item data for which the transmitted flag F is set to "0" for untransmitted data to the cart terminal 80.

In Act 86, the processor 11 checks whether the purchase data has been normally transmitted. If the purchase data has been normally transmitted, the processor 11 determines YES in Act 86 and proceeds to Act 87. In Act 87, the processor 11 changes all of the transmitted flags F added to the purchase data stored in the purchase memory 73 to "transmitted" "1". In addition, the processor 11 changes the status ST to "0" indicating before entering the store in Act 67. After that, the processor 11 returns to Act 1 and continues to wait for the wireless tag 30 to be read.

If the purchase item data has not been successfully transmitted, the processor 11 judges NO in Act 86, skips the processing of Act 87 and Act 67, and returns to Act 1. If there is no purchase item data for which the transmission flag F is set to "0", the processor 11 judges NO in Act 84, skips the processing of Act 85 through Act 87, and Act 67, and returns to Act 1. If the line connection with the cart terminal 80 fails, the processor 11 judges NO in Act 82, skips the processing of Act 83 through Act 87, and Act 67, and returns to Act 1. If no purchase item data is stored in the purchase item memory 73, the processor 11 judges NO in Act 62, skips the processing of Act 81 through Act 87, and Act 67, and returns to Act 1. If the status ST is not "1", the processor 11 determines NO in Act 61, skips the processing of Act 62, Act 81 to Act 87, and Act 67, and returns to Act 1.

In the second embodiment, a customer who comes to the store also wears the product registration support device 10 around his/her wrist as shown in FIG. 4. The customer wearing the product registration support device 10 removes a shopping basket 50 from a pile of shopping baskets 50 near the store entrance. When the customer does this, the product registration support device 10 reads the data on the store entry tag 31 with the wireless tag reader 17.

When the wireless tag reader 17 reads the data on the store entry tag 31, the product registration support device 10 displays a message instructing the customer to start shopping. After checking the message, the customer picks up the shopping basket 50 and starts shopping. At this time, the customer places the shopping basket 50 in a cart to which the cart terminal 80 is attached and starts shopping.

The purchaser who has started shopping removes the items he/she wishes to purchase from the product shelf 40 one by one and places them in the shopping basket 50, in the same manner as in the first embodiment. The purchaser also removes the items he/she wishes to return from the shopping basket 50 before payment and returns them to the original product shelf 40, in the same manner as in the first embodiment. As a result of such actions by the purchaser, the purchase data of the items in the shopping basket 50 is stored in the purchase item memory 73.

Now, for example, if a purchaser wishes to check the total amount during shopping, the purchaser brings the product registration support device 10 close to the cart tag 36 attached to the cart terminal 80. The wireless tag reader 17 then reads the data on the cart tag 36. The purchase data in the purchase memory 73 is then wirelessly transmitted to the cart terminal 80 identified by the data on the cart tag 36. As a result, as shown in FIG. 13, for example, a list image of the product names, points, and prices of the items purchased up to the present time, as well as the total points and total amount, is displayed on the display device 81 of the cart terminal 80. Therefore, the purchaser can easily check the current total amount by simply bringing the product registration support device 10 close to the cart tag 36 during shopping.

Now, when the purchaser has finished shopping, he or she brings the product registration support device 10 close to the cart tag 36 attached to the cart terminal 80 in the same manner as described above. This causes the purchase item data that has not yet been transmitted to the cart terminal 80 to be wirelessly transmitted to the cart terminal 80. Thus, the purchase item data that is ultimately stored in the purchase item memory 73 is saved in the cart terminal 80.

The purchase data stored in the cart terminal 80 is transferred to the POS terminal 20. In the POS terminal 20, the product sales registration process is executed based on the purchase data, as in the first embodiment.

Even in the second embodiment configured in this way, it is possible to provide a product registration support device 10 that can support purchasers in registering products efficiently and at low cost.

[Modification]
Modifications of each embodiment will be described below.
In each embodiment, the product registration support device 10 is in the form of a wristwatch and is attached to the wrist of a consumer. The product registration support device 10 may be attached to the upper limb of a consumer from the shoulder to the fingertips, and may detect the first and second actions of the consumer. For example, the product registration support device 10 may be in the form of a ring and attached to the consumer's finger.

In each embodiment, a purchase tag 34 and a return tag 35 are provided on the shopping basket 50, and the wireless tag reader 17 of the product registration support device 10 reads the data on the purchase tag 34 or return tag 35 to detect the first and second actions of the purchaser. The means for detecting the first and second actions is not limited to this. For example, a wristband-type product registration support device 10 with a built-in motion sensor such as an acceleration sensor, gyro sensor, or electromyography sensor may be developed to detect the first and second actions of the purchaser from information from the motion sensor.

In each embodiment, the case where there is only one purchaser is exemplified. For example, in the case of a family, all members of the family wear a product registration support device 10. Then, at the time of payment, the purchase data stored in the purchase item memory 73 of all members' product registration support devices 10 is sent sequentially to the POS terminal 20. The POS terminal 20 executes the sales registration process based on the purchase item data received from each product registration support device 10. In this way, it becomes possible to handle, for example, families. Note that a server may be provided between the product registration support device 10 and the POS terminal 20, and the purchase item data may be compiled by the server before being sent to the POS terminal 20.

In each embodiment, the transmitter is configured using a wireless tag 30. The transmitter is not limited to a wireless tag. Any transmitter that can transmit identification information of the displayed product via short-range wireless communication can be used.

In the second embodiment, a case is exemplified in which a transmitted flag F is added to the purchase item data, and the purchase item data with the flag F is transmitted to the cart terminal 80. In this regard, the cart terminal 80 may overwrite and save the purchase item data transmitted from the product registration support device 10, so that in Act 85, all the purchase item data in the purchase item memory 73 is transmitted to the cart terminal 80. In this case, the transmitted flag F is unnecessary.

Although several other embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope of the invention and the scope of the invention and its equivalents described in the claims.
The invention as originally claimed in the present application is set forth below.
[1] A product registration support device comprising: a receiver that receives electromagnetic waves emitted from a first transmitter installed in a display area where products are displayed; an acquisition means that acquires, from the electromagnetic waves received by the receiver, identification information of a product displayed in the display area where the first transmitter that emitted the electromagnetic waves is installed; a first detection means that detects a first action of a purchaser removing a product from the display area and storing the product in a container; an addition means that, when the first action is detected by the first detection means, adds a product identified by the identification information acquired by the acquisition means to a list; and an output means that outputs the list.
[2] The receiver is capable of receiving electromagnetic waves emitted from a second transmitter provided in the container, and the first detection means detects the first action in response to the receiver receiving electromagnetic waves emitted from the second transmitter after receiving the electromagnetic waves emitted from the first transmitter. A product registration support device as described in Appendix [1].
[3] A product registration support device as described in appendix [1] or [2], further comprising a second detection means for detecting a second action of the purchaser returning the product contained in the container to the display location, and a deletion means for deleting the product identified by the identification information acquired by the acquisition means from the list when the second action is detected by the second detection means.
[4] The receiver is capable of receiving radio waves emitted from a third transmitter provided in the container, and the second detection means detects the second action in response to the receiver receiving electromagnetic waves emitted from the first transmitter after receiving electromagnetic waves emitted from the third transmitter. A product registration support device as described in Appendix [3].
[5] A product registration support device described in any one of appendices [1] to [4], which is worn on the upper limbs of a purchaser.
[6] A program for causing a computer having a receiver that receives electromagnetic waves emitted from a first transmitter installed in a display area where products are displayed to function as an acquisition means for acquiring, from the electromagnetic waves received by the receiver, identification information of a product displayed in the display area where the first transmitter that emitted the electromagnetic waves is installed, a first detection means for detecting a first action of a purchaser removing a product from the display area and storing the product in a container, an addition means for adding to a list a product identified by the identification information acquired by the acquisition means when the first detection means detects the first action, and an output means for outputting the list.

10...product registration support device, 11...processor, 12...main memory, 13...auxiliary memory device, 14...wireless unit, 15...display, 16...LED circuit, 17...wireless tag reader, 18...system transmission path, 20...POS terminal, 30...wireless tag, 31...store entry tag, 32...POS tag, 33...shelf label tag, 34...purchase tag, 35...return tag, 36...cart tag, 40...product shelf, 41...section, 42...shelf label, 43...partition, 50...shopping basket.

Claims (8)

A receiver that receives electromagnetic waves emitted from a transmitter installed in a display area where the products are displayed;
an acquisition means for acquiring, from the electromagnetic waves received by the receiver, identification information of a commodity displayed in the display area where the transmitter that transmitted the electromagnetic waves is installed;
a detection means for detecting an action of a purchaser removing a product from the display area and storing the product in a storage unit;
an adding means for adding to a list a product identified by the identification information acquired by the acquiring means when the action is detected by the detecting means;
A display means for displaying the name of the product added to the list;
A product registration support device comprising: A receiver that receives electromagnetic waves emitted from a transmitter installed in a display area where the products are displayed;
an acquisition means for acquiring, from the electromagnetic waves received by the receiver, identification information of a commodity displayed in the display area where the transmitter that transmitted the electromagnetic waves is installed;
a detection means for detecting an action of a purchaser removing a product from the display area and storing the product in a storage unit;
an adding means for adding to a list a product identified by the identification information acquired by the acquiring means when the action is detected by the detecting means;
a display means for displaying the prices of the products added to the list;
A product registration support device comprising: a display means for displaying, when the receiver receives the electromagnetic waves transmitted from the transmitter, that the purchaser is in a purchase mode;
3. The product registration support device according to claim 1, further comprising: a deletion means for deleting the display indicating that the device is in the purchase mode when the action is detected by the detection means;
4. The product registration support device according to claim 3, further comprising: A computer equipped with a receiver that receives electromagnetic waves emitted from a transmitter installed in a display area where products are displayed,
an acquisition means for acquiring, from the electromagnetic waves received by the receiver, identification information of a commodity displayed in the display area where the transmitter that transmitted the electromagnetic waves is installed;
a detection means for detecting an action of a purchaser removing a product from the display area and storing the product in a storage unit;
an adding means for adding to a list a product identified by the identification information acquired by the acquiring means when the action is detected by the detecting means; and
a display means for displaying the name of the product added to the list;
A program to function as a A computer equipped with a receiver that receives electromagnetic waves emitted from a transmitter installed in a display area where products are displayed,
an acquisition means for acquiring, from the electromagnetic waves received by the receiver, identification information of a commodity displayed in the display area where the transmitter that transmitted the electromagnetic waves is installed;
a detection means for detecting an action of a purchaser removing a product from the display area and storing the product in a storage unit;
an adding means for adding to a list a product identified by the identification information acquired by the acquiring means when the action is detected by the detecting means; and
a display means for displaying the prices of the products added to the list;
A program to function as a The computer,
a display means for displaying, when the receiver receives the electromagnetic waves transmitted from the transmitter, that the purchaser is in a purchase mode;
The program according to claim 5 or 6, further functioning as a The computer,
a deletion means for deleting the display indicating that the device is in the purchase mode when the action is detected by the detection means;
The program according to claim 7, further functioning as: