JP5153197B2 - Electronic shelf label system - Google Patents

Description

  The present invention relates to an electronic shelf label system using an electronic shelf label that is installed near a product displayed in a store and displays product information related to the product.

  In a store such as a supermarket or a retail store, when a product sold out is sold out, when the store clerk looks around the shelves, the product is checked for sold-out, and “sold out” is displayed at the display location of the product. ing. Or, as a product display method, when the product is hung from the back to the front on a product display bar or the like that protrudes from the back of the product display shelf to the front, A tag displaying “sold out” is hung on the back of the displayed product or is attached to the back of the product display shelf.

  In this case, replenishment of the sold-out products to the shelf is performed by a store clerk looking around the shelf to find out of sold-out items. Alternatively, in supermarkets and retail stores where a POS system is introduced, a method of estimating sold-out by summing up the sales amount for each individual product is also employed.

  Further, as a method for automatically detecting sold-out, a medicine storage device as described in Patent Document 1 has been proposed for a medicine stored in a bottle or box. The medicine storage device described in Patent Document 1 is a storage device using a tray that is installed with the front side lower than the back side and inclined obliquely.

  In this storage device, a switch and an optical sensor for detecting stored items stored in the tray are provided inside the front side of the tray of the storage device. When bottles and boxes containing medicines are stored in the tray of the storage device, these bottles and boxes slide forward and are sequentially stored from the front to the back.

Then, while the above switches and sensors provided on the inner side of the tray detect the presence of bottles and boxes in the tray, and when these bottles and boxes disappear, Detect that it does not exist. Therefore, it is possible to detect sold-out by detecting the absence.
JP 2001-198194 A

  However, the storage device described in Patent Document 1 is a storage device that is used for medicines stored in bottles and boxes, and for general products displayed in stores such as supermarkets and retail stores. Is difficult to use. Therefore, supermarkets, retail stores, and the like still have to rely on the method described above as a method for dealing with sold-out items.

  By the way, in stores such as supermarkets and retail stores, it is necessary to display product information such as names and prices of products to be sold. Conventionally, a shelf label indicating the product name and price is installed near the product. It was displayed. However, this is a problem in terms of work efficiency and work cost, and recently, an electronic shelf label system that electronically displays product information for this product has been proposed.

  This electronic shelf label system is composed of a plurality of electronic shelf labels and servers provided in the vicinity of products displayed in a store, and the servers and the electronic shelf labels are connected by a wireless communication line. In this system, the electronic shelf label has a structure in which information on products displayed in the vicinity of the electronic shelf label is transmitted from the server and displayed.

  When this electronic shelf label system is adopted, the information of the product can be displayed by displaying the information transmitted from the server on the electronic shelf label provided in the vicinity of the displayed product. However, this electronic shelf label system does not take any measures against sold-out. Therefore, even if this electronic shelf label system is adopted as a method for dealing with sold-out, the above-described method must be relied upon.

  Further, even if there is no display product at the display place of the product, if there is a stock and can be displayed as “in stock”, loss of sales opportunities can be prevented. Or, if the same product is displayed at multiple locations, even if it is sold out at one location, the product may remain at other display locations. If there is a “product in place” display, the loss of sales opportunities can be prevented as described above.

Therefore, the present invention has been made in order to cope with the above-described situation, and not only displays the information of the product, but also enables detection of the amount of the displayed product. with the display of sold out "or" stock "and the like, if there are remaining product to other display location, provides the electronic shelf label system capable of displaying that there are goods in other places It is something to try.

  The electronic shelf label system of the present invention includes a shelf label server and an electronic shelf label that communicate with each other. The electronic shelf label constituting the electronic shelf label system displays product information transmitted from the shelf label server and is installed in the vicinity of the displayed product that is the display target.

  In this electronic shelf label system, the electronic shelf label constituting the electronic shelf label system is provided with detection means for detecting a product quantity that is the quantity of the displayed product. Therefore, according to this electronic shelf label system, it is possible to detect and display a sold-out item or the like, as will be described later, by using a detection unit that detects the amount of the item. Accordingly, it is possible to eliminate the necessity of manually checking and displaying sold-out items.

  In the electronic shelf label system, the detection unit may be provided with a comparison reference amount as a reference for comparison with respect to the product amount detected by the detection unit. In this case, the detection means compares the product quantity detected by the detection means with the comparison reference quantity, and displays the quantity related information related to the result based on the comparison result. To do.

  As the quantity-related information related to the result of the comparison, for example, as described later, when the above-mentioned comparison reference quantity is a value meaning that the product quantity is “None”, “sold out” or the like is used. In the case where the above-mentioned reference reference value is a small amount, the “goods remaining” is set.

  According to the above electronic shelf label system, it is possible to appropriately display the quantity of products based on the detected quantity of products.

  In the above electronic shelf label system, as described above, the comparison reference amount may be a value that means that the product amount is in a “no” state. In this case, as described above, the electronic shelf label sets the quantity-related information as information meaning “sold out” when the product quantity detected by the detecting means is equal to or smaller than the comparison reference quantity.

  In the electronic shelf label system described above, the product quantity detected by the electronic shelf label detection means in the electronic shelf label is compared with a comparison reference quantity. You may make it make a bill server perform.

  Specifically, a comparison reference amount is provided in a shelf label server that constitutes the electronic shelf label system. Then, the electronic shelf label transmits the product quantity detected by the detecting means to the shelf label server. Then, the shelf label server compares the product quantity transmitted from the electronic shelf label with the comparison reference quantity, and transmits the quantity related information related to the result to the electronic shelf label based on the comparison result. Therefore, the electronic shelf label further displays the quantity related information transmitted from the shelf label server.

  The amount-related information in the above case is the same as the content described above. According to this electronic shelf label system, the shelf label server provides the electronic shelf label with appropriate information related to the amount of the product based on the amount of the product detected by the electronic shelf label. Therefore, the electronic shelf label only needs to display the provided information, so that the processing burden on the electronic shelf label can be reduced and an appropriate display relating to the amount of goods can be performed.

  In the above case, the shelf label server may also display the quantity related information on the shelf label server. By doing in this way, the person in charge of a sales floor can grasp | ascertain the quantity of display goods exactly by checking the display of a shelf label server, without looking around a sales floor frequently.

  In the above electronic shelf label system that causes the shelf label server to perform processing for comparing the product quantity with the comparison reference quantity, the comparison reference quantity is set to a value that means that the product quantity is in a “no” state. Also good.

  In this case, if the product quantity transmitted from the electronic shelf label is equal to or smaller than the comparison reference quantity as a result of the comparison, the shelf label server sets the quantity related information as information that means “sold out”.

  In the above case, the shelf label server may display information indicating “sold out” also on the shelf label server and issue an alarm. By doing so, the person in charge of the sales floor can accurately grasp the “sold out” state without frequently looking around the sales floor, and can quickly deal with the ordering of products.

  In the electronic shelf label system that causes the shelf label server to perform a process of comparing the product amount with the comparison reference amount, the shelf label server may be provided with product inventory information.

  In this case, the above-mentioned comparison reference amount is a value that means that the product amount is in a “no” state. Then, the shelf label server searches the inventory information of the product if the product quantity transmitted from the electronic shelf label is equal to or less than the comparison reference quantity as a result of the comparison. If the product is in stock as a result of the search, the quantity-related information is information that means “in stock”.

  In this way, even if there are no displayed products at the display location of the product, it can be displayed as “in stock” or the like, so that loss of sales opportunities can be prevented.

  In addition, when the above-described electronic shelf label system that causes the shelf label server to perform processing for comparing the product amount with the comparison reference amount is used, the same product is displayed in a plurality of places. The electronic shelf label system may be configured as follows.

That is, the comparison reference amount is a value that means that the product amount is in a “no” state. Then, the shelf label server compares the product amount transmitted from the electronic shelf label with the comparison reference amount, and if the comparison result shows that the product amount is equal to or less than the comparison reference amount, It is confirmed whether there is an electronic shelf label installed in another place where the same product is to be displayed, and the electronic shelf where the same product is to be displayed if it exists. If the product quantity of at least one electronic shelf label is not less than or equal to the comparison reference quantity, the quantity related information indicating that there is a product in another location is displayed. It is transmitted to the electronic shelf label determined to be. The electronic shelf label displays quantity-related information indicating that there is a product in another place transmitted from the shelf label server .

  In this way, when the same product is displayed at multiple locations, even if it is sold out at one location, if the product remains at another display location, Can be displayed. Therefore, loss of sales opportunities can be prevented.

  Further, in each of the electronic shelf label systems described above, the shelf label server detects the product quantity by the electronic shelf label detection means and transmits the detected product quantity to the shelf label server using the electronic shelf label. You may make it perform by the instruction | indication performed with respect to a tag.

  By doing in this way, the shelf label server which comprises each electronic shelf label system collects the information regarding the product quantity which these electronic shelf labels display with respect to all the electronic shelf labels. It is possible to manage the displayed products in a centralized and efficient manner.

According to the present invention, the shelf label server compares the product amount transmitted from the electronic shelf label with the comparison reference amount, and if the comparison result shows that the product amount is equal to or less than the comparison reference amount, It is confirmed whether or not there is an electronic shelf label installed in another place where the same product is to be displayed, and if there is an electronic device for which the same product is to be displayed If the product quantity of at least one electronic shelf label is not less than or equal to the comparison reference quantity among the quantity of goods on the shelf label, the quantity related information indicating that the product is in another location is displayed, and the product quantity is less than or equal to the comparison reference quantity The electronic shelf label is configured to display quantity-related information indicating that there is a product in another location transmitted from the shelf label server. Is sold out in one place when it is displayed in multiple places Even if, in case there are still products in other places, it is possible to display and such as "there goods to other places", it is possible to prevent the loss of sales opportunities.

  Next, an electronic shelf label system according to an embodiment of the present invention will be described with reference to the drawings. The description of the embodiment of the present invention will be divided into the first embodiment and the second embodiment.

<Embodiment 1>
First, the electronic shelf label system according to Embodiment 1 will be described. Initially, the structure of the electronic shelf label system in Embodiment 1 is demonstrated. FIG. 1 is a block diagram showing the configuration of this electronic shelf label system. In FIG. 1, the electronic shelf label system according to the first embodiment is a system used in a store such as a supermarket or a retail store, and is installed in the vicinity where products are displayed, and a distortion sensor 31 described later that detects the amount of the products. And a plurality of electronic shelf labels 1 and a shelf label server 2. The shelf label server 2 and the plurality of electronic shelf labels 1 are connected by a wireless LAN.

  In the electronic shelf label system according to the first embodiment, information on products displayed in the vicinity of the electronic shelf label 1 is displayed on the shelf label for a plurality of electronic shelf labels 1 installed in the vicinity of the product. The system is a system that is transmitted from the server 2 and displayed on the electronic shelf label 1. In addition, the electronic shelf label system displays the electronic shelf label 1 according to the state relating to the detected amount of the product by detecting the amount of the displayed product (hereinafter referred to as a product amount detection process and This process is called related processing).

  FIG. 2 is a block diagram showing the configuration of the shelf label server 2. 2, the shelf label server 2 includes a CPU 21, a memory 22, an HDD 23, a wireless communication unit 24 including an antenna 24a, a display unit 25, and an operation unit 26. These units are connected to each other via a control line 27 including a data bus and an address bus connected to the CPU 21.

  The CPU 21 is composed of a microprocessor, and the memory 22 is composed of RAM, flash memory, or the like. The HDD 23 stores software such as an OS and various processing programs necessary for controlling the shelf label server 2. The CPU 21 performs various processes in the shelf label server 2 by software installed in the memory. The wireless communication unit 24 communicates with the electronic shelf label 1 and the portable terminal 3 via the wireless LAN. The display unit 25 displays various information. The operation unit 26 is used for inputting information and various instructions to the shelf label server 2.

  FIG. 3 is an external view of the electronic shelf label 1, and FIG. 4 is a block diagram showing the configuration of the electronic shelf label 1. 3 and 4, the electronic shelf label 1 includes a CPU 11, a memory 12, a wireless communication unit 13 having an antenna 13 a, a display unit 14, and a strain sensor I / F (interface) unit 15. . These units are connected to each other via a control line 17 including a data bus and an address bus connected to the CPU 11.

  The CPU 11 is composed of a microprocessor. The memory 12 is configured by a flash memory or the like. The memory 12 stores an OS and various software. The CPU 11 performs various processes using software installed in the ROM. The memory 12 stores a shelf label ID that is a unique ID for identifying the electronic shelf label 1 in a nonvolatile state.

  The wireless communication unit 13 communicates with the shelf label server 2 via the wireless LAN. The antenna 13 a of the wireless communication unit 13 is provided on the upper part of the casing of the electronic shelf label 1. The display unit 14 is composed of an LCD, and displays information such as product information. As shown in FIG. 3, the display unit 14 is divided into a product information display area 14 a located on the upper side of the display unit 14 and an amount related information display area 14 b located on the lower side.

  The strain sensor I / F unit 15 is an interface unit that receives an output of a strain sensor 31 to be described later via the connector 16 and has a function of converting an output signal of the strain sensor 31 that is an analog signal into a digital signal. ing. The connector 16 is provided below the back surface of the electronic shelf label 1.

  FIG. 5 shows an example of the display state of the electronic shelf label 1 and the products that are displayed on the electronic shelf label 1. In FIG. 5, the product display bar 33 protrudes from the display case back 34 in an upwardly inclined manner. The electronic shelf label 1 is attached to the tip of the commodity display bar 33 with the display unit 14 facing forward. In addition, the product 35 that is displayed on the electronic shelf label 1 is provided with a hanging metal fitting 35a at the top. The product 35 is suspended from the product display bar 33 by hanging the hanging metal fitting 35a on the product display bar 33, and the product 35 is displayed.

  The product display bar 33 is provided with a strain sensor 31 at a portion where the product display bar 33 contacts the display case back 34. The output of the strain sensor 31 is input to the strain sensor I / F unit 15 of the electronic shelf label 1 via the strain sensor connection line 32 and the connector 16. The strain sensor 31 detects the gravity of the product display bar 33 by detecting the strain generated in the product display bar 33 based on the gravity of the product 35 hung on the product display bar 33. The output of this gravity detection is an analog output, which is an output proportional to the gravity of the product 35 hung on the product display bar 33.

  In this case, the product display bar 33 is tilted forward and upward so that the product 35 hung on the product display bar 33 is always slid toward the display case back 34, so that the weight detection error is reduced. I try to reduce it.

  Next, the operation of the electronic shelf label system in Embodiment 1 will be described. In the electronic shelf label system according to the first embodiment, product registration information as shown in FIG. 6 is registered in the HDD 23 of the shelf label server 2 for all the electronic shelf labels 1 used in the electronic shelf label system. Yes. In addition, the memory 12 of each electronic shelf label 1 is provided with detection reference information related to a product to be displayed by the electronic shelf label 1. FIG. 7 shows an example of the detection reference information. In addition, the electronic shelf label 1 includes a timer (T1) configured by software in order to perform the product quantity detection process and the related process at regular intervals.

  In FIG. 6, the product registration information is formed for each electronic shelf label 1, and the shelf label ID for identifying the electronic shelf label 1 and the electronic shelf label 1 having the shelf label ID of the product to be displayed. It consists of a product ID and product information of the product. This product information includes a product name, a price, and the like.

  In the electronic shelf label system according to the first embodiment, the shelf label server 2 converts the product information included in the product registration information (FIG. 6) to the electronic information when the system starts operating and when it is determined to be necessary. Send to shelf label 1. Each electronic shelf label 1 receives the product information transmitted from the shelf label server 2 and displays it in the product information display area 14 a of the display unit 14. FIG. 9 shows an example of display of product information on the electronic shelf label 1.

  In FIG. 7, the detection reference information includes a reference number and a comparison reference amount corresponding to the reference number. As described above, the electronic shelf label system according to the first embodiment performs the product quantity detection process and the related process. However, the comparison reference quantity includes the product quantity detection process and the related process. Used to do.

  In the detection reference information shown in FIG. 7, C1 that is the comparison reference amount of reference number 1 is a value that means that the product amount is “no”. For example, when the product to be displayed on the electronic shelf label 1 is a toothbrush and is displayed in a state as shown in FIG. 5, the comparison reference amount (C1) is the weight, “0” (gram), or The weight (gram) is about one tenth of the weight of the toothbrush that is the product. The reason why the weight about 1/10 of the weight of the commercial toothbrush is used as C1 is that the detection error of the strain sensor 31 described above is taken into consideration.

  Further, C2, which is the reference amount for comparison with reference number 2, is a value that means that the product amount is in a “small amount” state. In this example of the toothbrush, the “small amount” state is, for example, about 5 pieces, and the comparison reference amount (C2) is a weight (gram) corresponding to about 5 toothbrushes.

  FIG. 8 is a flowchart showing the operation of the electronic shelf label system in the first embodiment. Next, the operation of the electronic shelf label system according to Embodiment 1 will be described using the flowchart of FIG. In FIG. 8, the electronic shelf label 1 first acquires the output of the strain sensor (S1). The output of the strain sensor is an analog signal as described above, and is converted into a digital signal by the strain sensor I / F unit 15 of the electronic shelf label 1. The digital signal is converted into weight (W), which is digital data, by the CPU 11 of the electronic shelf label 1 (S2).

  Next, the converted weight (W) is compared with C1, which is a comparison reference amount of reference number 1 in the detection reference information (FIG. 7) included in the electronic shelf label 1 (S3). As a result of this comparison, if W ≦ C1 (S4), since the product quantity of the displayed product is “None”, as the quantity related information corresponding to C1 which is the comparison reference quantity of the reference number 1 "Sold out" is displayed in the quantity related information display area 14b of the display unit 14 of the electronic shelf label 1 (S5), the process returns to S1 in the flowchart (FIG. 8), and the processes after S1 are repeated. FIG. 10 shows an example of display on the electronic shelf label 1 in this case. The quantity related information displayed on the display unit 14 of the electronic shelf label 1 may be “sold out” or other information meaning “sold out” such as “out of stock”. This also applies to “sold out” in the following description.

  In the comparison between the converted weight (W) and the comparison reference amount (C1) in S3, if W ≦ C1 is not satisfied (S4), the merchandise amount of the displayed merchandise is not in the “no” state. , Go to S6. In S6, the weight (W) is compared with C2, which is the comparison reference amount of the reference number 2 in the detection reference information (FIG. 7) provided in the electronic shelf label 1. As a result of this comparison, if W ≦ C2 (S7), since the product quantity of the displayed product is in the “small quantity” state, the quantity related information corresponding to C2 which is the comparison reference quantity of the reference number 2 is used. “Slightly remaining product” is displayed in the quantity related information display area 14b of the display unit 14 of the electronic shelf label 1 (S5), the process returns to S1 in the flowchart (FIG. 8), and the processes after S1 are repeated. FIG. 11 shows an example of display on the electronic shelf label 1 in this case.

  In the comparison between the converted weight (W) and the comparison reference amount (C2) in S6, if W ≦ C2 is not satisfied (S4), the product amount of the displayed product is not in the “small amount” state. In other words, in this case, since the product quantity of the displayed product is neither “None” nor “Small quantity”, the electronic shelf label 1 displays nothing as the quantity related information, and S9 Proceed to

  In S9, the timer (T1) is started, waits for the timer (T1) to time up, returns to S1 in the flowchart (FIG. 8), and repeats the processing after S1. As described above, the timer (T1) is used in order to periodically perform the commodity quantity detection process and the related process at regular intervals.

  According to the electronic shelf label system in the first embodiment described above, the electronic shelf label 1 includes the distortion sensor 31 that detects the product quantity that is the quantity of the displayed product. Therefore, by using the strain sensor 31 that detects the product quantity, it is possible to detect and display a sold-out product. Accordingly, it is possible to eliminate the necessity of manually checking and displaying the sold-out items.

  Further, as a reference for comparison with respect to the detected product quantity, a comparison reference quantity is provided, and the detected product quantity is compared with this comparison reference quantity. Based on the result of this comparison, the electronic shelf label 1 Since the amount related information related to the result is displayed, it is possible to appropriately display the amount of the product based on the detected amount of the product. Further, in this case, by setting the comparison reference amount to a value that means that the product amount is “no”, the electronic shelf label can be used when the detected product amount is equal to or less than the comparison reference amount. “Sold out” can be displayed.

<Embodiment 2>
Next, an electronic shelf label system according to Embodiment 2 will be described. The configuration of the electronic shelf label system in the second embodiment is exactly the same as the configuration of the electronic shelf label system in the first embodiment described above. That is, the electronic shelf label system according to the second embodiment is also composed of the plurality of electronic shelf labels 1 and the shelf label server 2 used in the first embodiment, and the shelf label server 2 and the plurality of shelf label servers 2 The electronic shelf label 1 is connected by a wireless LAN.

  The electronic shelf label system according to the second embodiment is different from the electronic shelf label system according to the first embodiment in the operation of the electronic shelf label system. That is, in the electronic shelf label system according to the first embodiment, the electronic shelf label 1 performs the process of detecting the amount of the displayed product and displaying the detected product amount. In contrast, the electronic shelf label system according to the second embodiment is different from the electronic shelf label system according to the first embodiment in that this processing is performed in cooperation with the electronic shelf label 1 and the shelf label server 2. Is a point.

  Therefore, the operation of the electronic shelf label system in the second embodiment will be described next. In the electronic shelf label system according to the second embodiment, product registration information as shown in FIG. 12 is registered in the HDD 23 of the shelf label server 2 for all the electronic shelf labels 1 used in the electronic shelf label system. Yes. This product registration information is obtained by adding the detection reference information provided in each electronic shelf label 1 in the first embodiment to the product registration information provided in the shelf label server 2 in the first embodiment.

  That is, in FIG. 12, the product registration information is formed for each electronic shelf label 1, and the shelf label ID for identifying the electronic shelf label 1 and the electronic shelf label 1 having the shelf label ID are displayed. Product ID of the product to be sold, product information of the product, and detection reference information of the product. Among these items, the product information is composed of a product name, a price, and the like as in the first embodiment. Similarly to the first embodiment, the detection reference information includes a reference number and a comparison reference amount corresponding to the reference number.

  In the operation description in the second embodiment, the content of the product registration information is the same as the content of the product registration information used in the operation description in the first embodiment. What is constituted by adding detection reference information having the same contents as the example of the detection reference information. Accordingly, the shelf label ID, the product ID, and the product information included in the example of the product registration information in the second embodiment shown in FIG. 12 are exactly the same as the contents of the product registration information shown in FIG. 6 in the first embodiment. In addition, the content of the detection criterion information of the product registration information shown in FIG. 12 is exactly the same as the content of the detection criterion information shown in FIG.

  Further, the HDD 23 of the shelf label server 2 is provided with product inventory information that is information relating to the inventory of products that are to be displayed by each electronic shelf label 1 in this electronic shelf label system. FIG. 13 shows an example of the commodity inventory information.

  In the electronic shelf label system according to the second embodiment, as with the electronic shelf label system according to the first embodiment, when the shelf label server 2 determines that the system is in operation and necessary, the product registration information (FIG. 12) is displayed. ) Is sent to each electronic shelf label 1. Each electronic shelf label 1 receives the product information transmitted from the shelf label server 2 and displays it in the product information display area 14 a of the display unit 14. Therefore, as an example of the display of product information on the electronic shelf label 1 in the second embodiment, the example of display of product information in the first embodiment (FIG. 9) can be used.

  Further, the shelf label server 2 uses a shelf label ID memory area (ML1) as shown in FIG. 14 as a work area used by the CPU 21 of the shelf label server 2 in order to perform the product quantity detection process and the related process. ), Shelf label ID saving memory area (ML2), product ID memory area (MG), weight memory area (MW), product quantity “no” status flag (F), and timer (T2).

  The shelf label ID memory area (ML1) is a memory area for storing the shelf label ID. The shelf label ID saving memory area (ML2) is a shelf label ID stored in the shelf label ID memory area when the shelf label ID memory area in which the shelf label ID is already stored is reused during the process. This is a memory area that is used to save data. The product ID memory area (MG) is a memory area for storing the product ID. The weight memory area (MW) is a memory area for storing the weight of the product detected by the electronic shelf label 1.

  The product quantity “no” state flag (F) is set to F = 1 when the quantity of the product displayed on the electronic shelf label 1 to be checked is the product quantity “no” state. The flag is F = 0 when the quantity is not in the “no” state of the product quantity. The timer (T2) is a timer configured by software, like the timer (T1) in the first embodiment, in order to perform the above processing performed by the shelf label server 2 at regular intervals. .

  15 to 20 are flowcharts showing the operation of the electronic shelf label system according to the second embodiment. Among these, FIGS. 15 to 19 are flowcharts showing the operation of the shelf label server 2, and FIG. 20 is a flowchart showing the operation of the electronic shelf label 1. In the flowcharts of FIGS. 15 to 20, R1 and R2 indicated by dotted lines indicate that there is a relationship between each other connected by dotted lines.

  Next, the operation of the electronic shelf label system according to the second embodiment will be described with reference to FIGS. As described above, FIGS. 15 to 19 are flowcharts showing the operation of the shelf label server 2, and FIG. 15 is a flowchart showing the basic operation of the shelf label server 2.

  First, the basic operation of the shelf label server 2 will be described with reference to FIG. The shelf label server 2 first selects any one of the shelf label IDs included in the electronic shelf label 1 used in the electronic shelf label system, and stores the selected shelf label ID in the shelf label ID memory. Store in the area (ML1) (S21), and proceed to the product quantity detection process (S30).

  The product quantity detection process (S30) is a process for causing the electronic shelf label 1 to detect the weight and determining whether or not the result is the product quantity “None” state. When this merchandise quantity detection process (S30) ends, the shelf label server 2 checks the merchandise quantity “none” state flag (F) (S22), and if F = 1 (S23), then the merchandise quantity “None” state-related processing is performed (S50), and if F = 1 (S23), then product quantity non- “none” state-related processing is performed (S70).

  The product quantity “no” state related process (S50) checks whether the same product exists in other sales floors or the stock does not exist when the product quantity is in the “no” state. On the basis of the result, the electronic shelf label 1 is instructed to display “there is a product in another sales floor”, “in stock”, or “sold out”.

  The merchandise quantity non- “no” state related processing (S70) checks whether the merchandise quantity is not in the “small” state when the merchandise quantity is not in the “no” state. This is a process of instructing the electronic shelf label 1 to display “Remaining product remaining”.

  When either the merchandise quantity “none” state-related process (S50) or the merchandise quantity non- “no” state-related process (S70) is completed, the process proceeds to S24. In S24, it is checked whether or not the processing has been completed for all the shelf label IDs used in the electronic shelf label system. (S21), the processing from S21 onward is repeated until the processing is completed for all the shelf label IDs.

  If it is checked in S24 whether or not the processing has been completed for all the shelf label IDs, if the processing has been completed for all the shelf label IDs, the process proceeds to S26. In S26, the timer (T2) is started, waits for the timer (T2) to expire, returns to S21 in the flowchart (FIG. 15), and repeats the processing from S21 onward. As described above, the timer (T2) is used in order to perform the commodity quantity detection process and the related process at regular intervals.

  Next, details of the operation of the electronic shelf label system according to the second embodiment will be described with reference to the flowchart showing the basic operation of the shelf label server 2 of FIG. First, the product quantity detection process (S30) will be described. FIG. 16 is a flowchart showing the contents of the product quantity detection process (S30).

  As described above, the product quantity detection process (S30) is a process for causing the electronic shelf label 1 to detect the weight and determining whether or not the result is the product quantity “None” state. Therefore, in FIG. 16, the shelf label server 2 first transmits a weight detection command to the electronic shelf label 1 having the shelf label ID stored in the shelf label ID memory area (ML1) (S31). Then, the electronic shelf label 1 checks the presence / absence of reception from the shelf label server 2 in the flowchart showing the operation of the electronic shelf label 1 shown in FIG. 20 (S81).

  If there is reception (S82), it is checked whether the received content is a weight detection command or amount-related information (S83). If the received content is a weight detection command (S84), the electronic shelf label 1 acquires the output of the strain sensor (S86) and converts the output of the strain sensor into weight (W) (S87). , To the shelf label server 2 (S88).

  Accordingly, the shelf label server 2 checks whether or not the weight (W) is received from the electronic shelf label 2 in S32 of the flowchart of the commodity quantity detection process (S30) shown in FIG. 16 (S32) and receives it. (S33), the received weight (W) is stored in the weight memory area (MW) (S34), and the process proceeds to S35.

  In S35, product registration information including the shelf label ID stored in the shelf label ID memory area (ML1) is extracted (S35). Then, the weight (W) stored in the weight memory area (MW) is compared with the comparison reference amount (C1) of the reference number 1 included in the product registration information extracted in S35 (S36).

  As a result of the comparison in S36, if W ≦ C1, the product quantity “none” state flag F = 1 is set. If W ≦ C1, the product quantity “none” state flag F = 0 and the product quantity detection process (S30) is terminated. As described above, the product quantity “none” state flag F = 1 is a case where the product quantity is in the product quantity “none” state, and the product quantity “none” state flag F = 0 is the product quantity “none”. It is a case where it is not a state.

  Next, the commodity quantity “none” state related process (S50) will be described. FIG. 17 and FIG. 18 are flowcharts showing the contents of the product quantity “none” state related process (S50). As described above, the product quantity “no” state related process (S50) checks whether the same product exists in other sales floors or the stock does not exist when the product quantity is in the “no” state. Then, based on the result of the check, the electronic shelf label 1 is instructed to display “there is a product in another sales floor”, “in stock”, or “sold out”.

  Therefore, the shelf label server 2 first checks whether the same product exists in another sales floor. That is, in FIG. 17 and FIG. 18, the shelf label ID stored in the shelf label ID memory area (ML1) is stored in the shelf label ID saving memory area (ML2) (S51), and the process proceeds to S52. In S51, storing the shelf label ID stored in the shelf label ID memory area (ML1) in the shelf label ID saving memory area (ML2) is a process of checking whether the same product exists in other sales floors. Then, since the above-described commodity quantity detection process (S30) is reused, the shelf label ID already stored in the shelf label ID memory area is saved.

  In S52, the shelf label ID stored in the shelf label ID saving memory area (ML2), that is, the shelf label ID included in the electronic shelf label 1 that is the target of the product quantity detection process and the related process is included. Extract product registration information. Next, the product ID included in the product registration information extracted in S52 is extracted, stored in the product ID memory area (MG) (S53), and the process proceeds to S54.

  In S54, product registration information including the product ID stored in the product ID memory area (MG) is extracted from the product registration information other than that extracted in S52. Next, it is determined whether or not such product registration information can be extracted (S55). If the product registration information cannot be extracted, the electronic shelf label 1 that is the target of the product quantity detection process and the related process is displayed. Since there is no other sales floor for the product that is the target of the process, the process proceeds to S62 for checking whether there is no inventory, which is the next process.

  If the product registration information including the product ID stored in the product ID memory area (MG) in S54 can be extracted (S55), the electronic quantity that is the target of the product amount detection process and the related process is extracted. This is a case where there are other sales floors for the products that are displayed on the shelf label 1.

  Therefore, next, the shelf label ID included in one of the product registration information extracted in S54 is stored in the shelf label ID memory area (ML1) (S56), and the process proceeds to the product quantity detection process in S30. That is, in this case, as described above, there is a case where there are other sales floors for the products that the electronic shelf label 1 that is the target of the product quantity detection processing and the related processing is displayed. The above-described product quantity detection process (S30) is used to check whether or not a product exists in the sales floor, that is, whether or not the product quantity is “None”.

  When the product quantity detection process (S30) performed subsequent to S56 is completed, the result of the product quantity detection process, that is, the product quantity “none” state flag (F) is checked (S57). In this check, if the product quantity “none” state flag F is not 1 (S58), it is not the product quantity “no” state, so it is understood that there is a product in another sales floor. Therefore, the shelf label server 2 transmits “there is a product in another sales floor” to the electronic shelf label 1 as the quantity related information (S59), and proceeds to S66.

  Therefore, the electronic shelf label 1 checks whether there is reception from the shelf label server 2 in S81 of the flowchart of the electronic shelf label 1 shown in FIG. 20 (S81). If there is reception (S82), it is checked whether the received content is a weight detection command or amount-related information (S83). When the received content is not a weight detection command, that is, when it is quantity-related information (S84), the electronic shelf label 1 displays the received quantity-related information in the quantity-related information display area 14b of the display unit 14. In this case, the received content is quantity-related information, and the quantity-related information transmitted from the shelf label server 2 to the electronic shelf label 1 is “there is a product in another sales floor”. , “There is a product in another sales floor” is displayed in the quantity related information display area 14 b of the display unit 14. FIG. 21 shows an example of display of the electronic shelf label 1 in this case.

  In the check of the product quantity “none” state flag (F) in S57 of the flowchart of FIG. 17, if the product quantity “none” state flag F = 1 (S58), the product quantity is “no” state. You can see that there are no products in other sales areas. Therefore, next, it is checked whether or not the above-described product quantity detection process (S30) is completed for all the product registration information extracted in S54 (S60), and for all the product registration information, If the product quantity detection process (S30) has not been completed (S61), the process returns to S56 until the above product quantity detection process (S30) is completed for all product registration information. Repeat the process.

  When the product quantity detection process (S30) is completed with the product quantity “none” state flag F = 1 for all the product registration information extracted in S54 (S61), all the other product registration information is extracted. You can see that there is no product at the sales floor. Therefore, next, it is checked whether there is an inventory.

  That is, in S62, the product inventory is searched to check whether or not the product with the product ID stored in the product ID memory area (MG) is in stock. If there is a stock (S63), the quantity related information is “ “In stock” is transmitted to the electronic shelf label 1 (S64), and the process proceeds to S66.

  Therefore, in this case, the electronic shelf label 1 displays “in stock” in the amount of the display unit 14 in the same manner as in the case of “there is a product in another sales floor” in the flowchart of the electronic shelf label 1 shown in FIG. The information is displayed in the related information display area 14b (S85). FIG. 22 shows an example of display of the electronic shelf label 1 in this case.

  If there is no stock in the check of the product stock in S62 of the flowchart of FIG. 18 (S64), there is no product in all other sales floors, and there is no stock. Is transmitted to the electronic shelf label 1 (S65), and the process proceeds to S66.

  Therefore, in this case, the electronic shelf label 1 displays “sold out” in the flow chart of the electronic shelf label 1 shown in FIG. The information is displayed in the information display area 14b (S85). FIG. 22 shows an example of display of the electronic shelf label 1 in this case.

  As a final process in the product quantity “no” state related process (S50), in S66 of the flowchart of FIG. 18, the shelf label ID stored in the shelf label ID saving memory area (ML2) is replaced with the original shelf label ID. Store in the memory area (ML1), and the product quantity “none” state related process (S50) ends.

  Next, the merchandise quantity non- “no” state related process (S70) will be described. FIG. 19 is a flowchart showing the contents of the merchandise quantity non- “no” state related process (S70). As described above, the product quantity non- “no” state related process (S70) checks whether the product quantity is in the “small” state when the product quantity is not in the “no” state. In this case, the electronic shelf label 1 is instructed to display “Slightly Available Items”.

  Accordingly, in FIG. 19, the shelf label server 2 extracts product registration information including the shelf label ID stored in the shelf label ID memory area (ML1) (S71). Then, the weight (W) stored in the weight memory area (MW) is compared with the comparison reference amount (C2) of the reference number 2 included in the product registration information extracted in S71 (S72). As a result of the comparison in S72, if W ≦ C2 (S73), since the product quantity is “small quantity”, “Slightly available goods” is transmitted to the electronic shelf label 1 as quantity related information (S74). The process of the quantity non- “no” state related process (S70) is terminated.

  In this case, the electronic shelf label 1 checks whether there is reception from the shelf label server 2 in S81 of the flowchart of the electronic shelf label 1 shown in FIG. 20 (S81). If there is reception (S82), it is checked whether the received content is a weight detection command or amount-related information (S83). When the received content is not a weight detection command, that is, when it is quantity-related information (S84), the electronic shelf label 1 displays the received quantity-related information in the quantity-related information display area 14b of the display unit 14. In the above case, since the received content is the quantity related information, and the quantity related information transmitted from the shelf label server 2 to the electronic shelf label 1 is “the remaining goods”, the electronic shelf label 1 “Remaining merchandise” is displayed in the quantity related information display area 14 b of the display unit 14. An example of display of the electronic shelf label 1 in this case is shown in FIG. This display is the same as in the first embodiment.

  As a result of the comparison in S72, if W ≦ C2 is not satisfied (S73), neither the product quantity non- “no” state nor the product quantity “small amount” state is entered, so the shelf label server 2 issues a display instruction to the electronic shelf label 1 Without doing anything, the processing of the product quantity non- “no” state related processing (S70) is terminated.

  According to the electronic shelf label system in the second embodiment described above, the electronic shelf label 1 includes the distortion sensor 31 that detects the product quantity that is the quantity of the displayed product. Therefore, by using the strain sensor 31 that detects the product quantity, it is possible to detect and display a sold-out product. Accordingly, it is possible to eliminate the necessity of manually checking and displaying the sold-out items.

  The shelf label server 2 is provided with a comparison reference amount, and the electronic shelf label 1 transmits the detected product amount to the shelf label server 2, and the shelf label server 2 compares the product amount with the comparison reference amount. Based on the result of this comparison, the quantity related information related to this result is transmitted to the electronic shelf label, and the electronic shelf label displays this quantity related information.

  That is, since the shelf label server 2 provides appropriate information regarding the product quantity to the electronic shelf label 1 based on the product quantity detected by the electronic shelf label 1, the electronic shelf 1 tag is provided with the provided information. It is only necessary to display. Therefore, the electronic shelf label 1 can reduce the processing load and can display appropriate quantity-related information regarding the product quantity.

  Further, according to an instruction from the shelf label server 2 to the electronic shelf label 1, the product quantity in the electronic shelf label 1 is detected and the detected product quantity is transmitted to the shelf label server 2. Accordingly, since the shelf label server 2 collects information on the amount of products that are displayed on all the electronic shelf labels 1, the management of the displayed products can be performed intensively and efficiently. It can be carried out.

  In addition, when the same product is displayed in a plurality of places, and the product quantity transmitted from the electronic shelf label 1 is in the product quantity “None” state, whether the same product exists in other sales floors. If the same product exists in other sales floors, “there is a product in other sales floors” is displayed on the electronic shelf label 1 as quantity related information. Therefore, even if a product is sold out at one location, if there is a product remaining at another display location, it can be displayed as “Product available at another location”, thus preventing loss of sales opportunities. it can.

  Further, the shelf label server 2 is provided with product inventory information, and if the product quantity transmitted from the electronic shelf label 1 is in a product quantity “no” state, the inventory information of this product is retrieved, As a result, when there is a stock of the product, “in stock” is displayed on the electronic shelf label 1 as the quantity related information. Therefore, even if there are no displayed products at the display location of the product, “in stock” is displayed, so that it is possible to prevent a loss of sales opportunities.

  In addition, when the product quantity transmitted from the electronic shelf label 1 is in the “no” product quantity state, if there is no product in all other sales floors and there is no inventory, the electronic shelf label is used as quantity related information. “SOLD OUT” is displayed in 1. Accordingly, it is possible to eliminate the necessity of manually checking and displaying the sold-out items.

  In the second embodiment described above, when the electronic shelf label 1 receives a weight detection command from the shelf label server 2 in the flowchart of FIG. 20 (S84), the electronic shelf label 1 acquires the output of the strain sensor. (S86), the output of the strain sensor is converted into weight (W) (S87) and transmitted to the shelf label server 2 (S88). However, the electronic shelf label 1 transmits the obtained strain sensor output to the shelf label server 2 as it is without converting it into the weight (W), and the shelf label server 2 converts the output of the strain sensor into the weight (W). You may do it.

  Further, in the above-described second embodiment, when there is another sales floor displaying the same product in the product quantity “none” state related process (S50), the product label detection process (S30) is used to By sending a weight detection command from the server 2 to the electronic shelf label 1 of another sales floor and causing the electronic shelf label 1 to perform weight detection, it is checked whether the same product still exists in the other sales floor. Yes. However, the method is not limited to such a method, and the shelf label server 2 always uses a mechanism for grasping the amount of products to be displayed on the electronic shelf label 1 for all the electronic shelf labels 1. It may be possible to check whether or not the same product still exists in the sales floor.

  In the second embodiment described above, the shelf label server 2 transmits the quantity related information to the electronic shelf label 1, and the electronic shelf label 1 receives and displays the quantity related information. As the quantity-related information in this case, specifically, in the flowcharts of FIG. 17 and FIG. 18 showing the merchandise quantity “none” state-related processing (S50), In the flowchart of FIG. 19, which shows “in stock” (S 64) and “sold out” (S 65), and the product quantity non- “no” state-related processing (S 70), “goods remaining” (S 74). There is.

  When the amount related information is transmitted to the electronic shelf label 1 by the shelf label server 2, not only the amount related information is transmitted to the electronic shelf label 1, but also the amount related information is displayed on the display unit 25 of the shelf label server 2. You may do it. At this time, an alarm may be generated. By doing in this way, the person in charge of the sales floor can accurately grasp the amount of the displayed goods and the state of the product quantity “none” by checking the display of the shelf label server 2 without frequently looking around the sales floor. be able to.

  Further, when displaying these quantity-related information on the display unit 25 of the shelf label server 2, not only these quantity-related information but also the destination electronic shelf label 1 to which these quantity-related information is transmitted. The shelf label ID may also be displayed at the same time. By doing this, the person in charge of the sales floor can check the display location of the shelf label server 2 without having to frequently look around the sales floor, thereby accurately identifying the product display place where the product quantity is “None”. It is possible to quickly grasp the ordering process of goods and the like.

  In the second embodiment described above, the shelf label server 2 transmits a weight detection command from the shelf label server 2 to the electronic shelf label 1 using the product quantity detection process (S30), and the weight is sent to the electronic shelf label 1. The operation of the electronic shelf label system is started using the detection as a trigger (see FIGS. 15 and 16).

  However, the present invention is not limited to this, and the same operation as the weight detection operation performed by the electronic shelf label 1 in the electronic shelf label system according to the first embodiment described above is the same as the electronic shelf label system according to the second embodiment. The operation of the electronic shelf label system according to the second embodiment may be started by using what the tag 1 performs as the trigger described above.

  Specifically, in the second embodiment, instead of sending a weight detection command from the shelf label server 2 to the electronic shelf label 1 to cause the electronic shelf label 1 to perform weight detection, the electronic shelf label 1 The detection operation is performed to notify the shelf label server 2 of the result, and this notification is used as the trigger.

  Alternatively, when the electronic shelf label 1 detects that the product quantity of the displayed product is “None”, the fact is notified to the shelf label server 2, and this notification is This is the trigger.

  Moreover, in the electronic shelf label system of Embodiment 1 and Embodiment 2 mentioned above, the distortion sensor 31 is used for the detection of the product quantity. As shown in FIG. 5, the product 35 provided with the hanging bracket 35 a is suspended from the product display bar 33 protruding forward from the display case back 34, and thus the product display bar 33 is applied. The fact that the strain sensor 31 is distorted by the weight of the product 35 is used.

  However, the method for detecting the product quantity using the strain sensor is not limited to the method using the product display bar 33 as described above, and for example, a method shown in FIG. In FIG. 23, the electronic shelf label 1 is attached to the front end of the product shelf 43 protruding forward from the display case back portion 44, and a strain sensor is provided inside the product shelf 43. In this case, it is utilized that the strain sensor 41 is distorted by the weight of the product 45 placed and displayed on the product shelf 43. In FIG. 23, 43 is a connection line of the strain sensor 41, and 16 is a connection connector of the electronic shelf label 1.

  Further, the use of the product quantity is not limited to the strain sensor, and an infrared sensor can be used. 24 and 25 show an example in which an infrared sensor is used to detect the product quantity.

  24, the back upper part of the electronic shelf label 1 is coupled to the front end of the product display bar 53 that protrudes obliquely upward and forward from the display case back portion 44, and the back side of the electronic shelf label 1. In the lower part, an infrared sensor 51 for projecting / receiving infrared rays is provided. In this case, the product display bar 53 is inclined forward and upward so that the product 55 hung on the product display bar 53 is always slid toward the display case back 54. A mechanism for obtaining the distance between the infrared sensor 51 and the product 55 by detecting the time until the projected infrared light is reflected and received by the product 55, and detects the product quantity based on this distance. Is used.

  In FIG. 25, the upper part of the back of the electronic shelf label 1 is coupled to the front end of the product display bar 63 that protrudes obliquely downward from the display case back portion 64, and is attached to the surface of the display case back portion 64. An infrared sensor 61 for projecting / receiving infrared rays is provided. In this case, unlike the case of FIG. 24, the product display bar 63 is inclined forward and downward so that the product 65 hung on the product display bar 63 always slides forward and downward. The distance between the infrared sensor 61 and the product 65 is obtained by detecting the time until the infrared light projected from the infrared sensor 61 is reflected and received by the product 65, and the product is calculated based on this distance. A mechanism for detecting the amount is used.

  In addition to the method using the strain sensor or the infrared sensor, a method using the principle of a radar using an ultrasonic sensor or a laser can be adopted as a method for detecting the product quantity. In the case of using these, for example, instead of the infrared sensor in FIG. 24 or FIG. 25 described above, the distance between these sensors and the product is obtained using a radar using an ultrasonic sensor or a laser. Thus, a mechanism for detecting the product quantity may be used.

It is the block diagram which showed the structure of the electronic shelf label system in Embodiment 1. FIG. FIG. 2 is a block diagram showing a configuration of a shelf label server in the first embodiment. 1 is an external view of an electronic shelf label according to Embodiment 1. FIG. 1 is a block diagram showing a configuration of an electronic shelf label according to Embodiment 1. FIG. 3 is an explanatory diagram showing an example of a display state of a product in Embodiment 1. FIG. 3 is a table showing a configuration of product registration information in the first embodiment. 3 is a table showing a configuration of detection reference information in the first embodiment. 3 is a flowchart showing the operation of the electronic shelf label system in the first embodiment. 6 is a screen diagram (part 1) illustrating an example of display of an electronic shelf label according to Embodiment 1. FIG. FIG. 6 is a screen diagram (part 2) illustrating an example of display of an electronic shelf label according to the first embodiment. FIG. 6 is a screen diagram (part 3) illustrating an example of display of an electronic shelf label according to the first embodiment. 10 is a table showing a configuration of product registration information in the second embodiment. 10 is a table showing a configuration of commodity inventory information in the second embodiment. It is explanatory drawing which showed the work area etc. which the shelf label server in Embodiment 2 uses. 6 is a flowchart (part 1) illustrating an operation of the electronic shelf label system according to the second embodiment. 6 is a flowchart (part 2) illustrating an operation of the electronic shelf label system according to the second embodiment. 12 is a flowchart (part 3) illustrating an operation of the electronic shelf label system according to the second embodiment. 12 is a flowchart (part 4) illustrating an operation of the electronic shelf label system according to the second embodiment. 10 is a flowchart (part 5) illustrating an operation of the electronic shelf label system according to the second embodiment. 10 is a flowchart (part 6) illustrating an operation of the electronic shelf label system according to the second embodiment. FIG. 10 is a screen diagram (part 1) illustrating an example of display of an electronic shelf label according to the second embodiment. FIG. 10 is a screen diagram (part 2) illustrating an example of display of an electronic shelf label according to the second embodiment. It is explanatory drawing (the 1) which showed the display state of the goods in another example. It is explanatory drawing (the 2) which showed the display state of the goods in another example. It is explanatory drawing (the 3) which showed the display state of the goods in another example.

Explanation of symbols

1 Electronic shelf label 2 Shelf label server 3 Mobile terminal 11 CPU
12 Memory 13 Wireless communication unit 13a Antenna 14 Display unit 14a Product information display area 14b Quantity related information display area 15 Strain sensor I / F unit 16 Connector 17 Control line 21 CPU
22 Memory 23 HDD
24 Wireless communication unit 24a Antenna 25 Display unit 26 Operation unit 27 Control line 31 Strain sensor 32 Strain sensor connection line 33 Product display bar 34 Display case back 35 Product 35a Suspension metal fitting 41 Strain sensor 42 Strain sensor connection line 43 Display shelf 44 Display Case wall 45 Product 51 Infrared sensor 53 Product display bar 54 Display case back 55 Product 55a Hanging metal fitting 61 Infrared sensor 62 Strain sensor connection line 63 Display shelf 64 Display case wall 65 Product 65a Hanging metal fitting

Claims (2)

Is composed of a shelf label server and the electronic shelf label that communicate with each other, items the electronic shelf label, with the display of product information transmitted from the shelf label server, which is display a the display of the target An electronic shelf label system installed in the vicinity of
The shelf label server is provided with a comparison reference amount that is predetermined as the amount of goods displayed,
The electronic shelf label includes a detection unit that detects a product amount that is an amount of a displayed product, and transmits the product amount detected by the detection unit to the shelf label server,
The shelf label server compares the product quantity transmitted from the electronic shelf label with the comparison reference quantity, and if the product quantity is equal to or less than the comparison reference quantity as a result of comparison, the electronic shelf label It is confirmed whether or not there is an electronic shelf label installed in another place where the same product as the product is to be displayed, and the same product is to be displayed. If the product quantity of at least one electronic shelf label is not less than or equal to the comparison reference quantity among the product quantities of the electronic shelf label, the quantity related information indicating that there is a product in the other place , The product quantity is transmitted to the electronic shelf label determined to be less than the comparison reference quantity,
The electronic shelf label system, wherein the electronic shelf label system displays the quantity-related information indicating that there is a product in another place transmitted from the shelf label server . Detection of the product quantity by the detecting means of the electronic shelf labels, and transmission to the shelf label server by the electronic shelf label of said detected product amount, the shelf label server to the electronic shelf label The electronic shelf label system according to claim 1 , wherein the electronic shelf label system is performed according to an instruction to be performed.

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