JP6216919B2 - Electronic shelf label display, electronic shelf label display system and operation method thereof for separate transmission of display data and change command data - Google Patents

Description

  The present invention relates to an electronic shelf label display device, an electronic shelf label display system, and an operation method thereof that separately transmit display data and change command data in a time-dependent manner.

  Conventionally, as a method for displaying merchandise information for purchasers on a merchandise display stand, a paper tag on which price information printed by direct handwriting or a printer is displayed has been used. However, when such a paper tag is used, there is a disadvantage that the price information of the product is changed or the paper tag has to be replaced every time the product is changed.

  An electronic shelf label (ESL: Electronic Shelf Label, hereinafter referred to as an electronic shelf label display) that can compensate for the disadvantages of the paper tag has been researched and developed. Recently, there are cases in which the electronic shelf label display is applied to some product display stands. An electronic shelf label display system including a plurality of such electronic shelf label displays can be installed at the sales floor.

  However, in the conventional electronic shelf label display system, the price of a specific product (or product) in the sales floor may have to be changed simultaneously at a specific time.

  As an example, even when price fluctuations occur at a specific time in the evening like seafood, the products, time and discount rate at which price fluctuations already occur are determined in advance. In this case, if the server generates data to be transmitted to the electronic shelf label display and transmits it to multiple electronic shelf label displays through a repeater (eg, gateway) at the time when the price fluctuation occurs, Because transmission errors may occur during transmission to all thousands or tens of thousands of electronic shelf label displays at a specific time, multiple electronic shelf label displays simultaneously display the same information There is a problem that it is impossible to be done.

  Patent Document 1 described in the following prior art document relates to an electronic shelf label display system and its operation method, but does not present a solution to the above-mentioned problem.

Korean Published Patent No. 2012-0035358

  In order to solve the above-described problem, according to an embodiment of the present invention, if there is a price fluctuation plan, display data including display information mapped to a display information index before the price fluctuation plan is displayed at least one electronic shelf label display. The electronic shelf label display can store the display data, and if there is a change command, the display information mapped to the display information index can be searched and displayed on the screen Device, electronic shelf label display system and its operation method are provided.

  According to an embodiment of the present invention, a communication unit that performs wireless communication with an electronic shelf label display repeater, and display data including display information in which a display information index is mapped through the communication unit are set at a predetermined set time. Receive and save before, receive change command data after the set time, search display information mapped to the display information index included in the change command data from the saved display data and display on screen A control unit for controlling the display information, a memory unit for storing display data including display information mapped with the display information index, and a display unit for displaying the retrieved display information on the screen under the control of the control unit. Including electronic shelf label display is proposed.

  According to another embodiment of the present invention, the electronic shelf label display server generates display data including display information mapped with the display information index and transmits the display data to the electronic shelf label display repeater, The electronic shelf label display repeater transmits a data signal including the display data provided from the electronic shelf label display server to at least one electronic shelf label display before a predetermined set time, and At least one electronic shelf label display receives the data signal from the electronic shelf label display repeater before a predetermined set time, and the electronic shelf label display that receives the data signal Storing display data included in a data signal, and providing the electronic shelf label display server with change command data including a display information index to the electronic shelf label display repeater; The electronic shelf label display repeater transmits a control signal including the change command to the at least one electronic shelf label display after the set time, and the at least one electronic shelf label display includes the electronic shelf label display. The control signal is received from the shelf label display repeater, and the display information mapped to the display information index included in the control signal change command data is stored in advance in the at least one electronic shelf label display device. A method of operating an electronic shelf label display system is proposed, which includes a step of searching from the display data, and a step of the at least one electronic shelf label display displaying the searched display information on a screen.

  According to the present invention, since the electronic shelf label display receives and stores the display data in advance, if price fluctuation is necessary, the electronic shelf label display can Display information can be changed to display information mapped to the display information index.

  In addition, the server has an advantage that a plurality of electronic shelf label displays can simultaneously display the same display information on the screen only by a change command.

  Thus, in a state where a plurality of display information is transmitted to each of a plurality of electronic shelf label displays in advance, the display operation can be controlled by the event schedule in the server, and the event schedule is changed due to various environmental changes. Even in this case, there is an advantage that an appropriate response is possible by changing the schedule time for the corresponding display information.

It is a block diagram of the electronic shelf label display system by one Example of this invention. It is a block diagram of the electronic shelf label display by one Example of this invention. It is an illustration figure of the display information according to the display information index of the electronic shelf label display system by one Example of this invention. 3 is an operation flowchart of an electronic shelf label display system and an electronic shelf label display according to an embodiment of the present invention. It is operation | movement explanatory drawing of the electronic shelf label display system by one Example of this invention. 1 is an exemplary diagram illustrating an operation method of an electronic shelf label display system according to an embodiment of the present invention; FIG. 5 is a view illustrating a change command data packet according to an embodiment of the present invention. FIG. 6 is another exemplary view of a change command data packet according to an embodiment of the present invention. 5 is a flowchart illustrating an operation method of the electronic shelf label display system according to the embodiment of the present invention. FIG. 3 is a transmission example of display data of an electronic shelf label display system according to an embodiment of the present invention. FIG. 5 is a view illustrating transmission of display data between an electronic shelf label display repeater and an electronic shelf label display according to an embodiment of the present invention. FIG. 6 is an explanatory diagram of broadcasting and unicasting for transmitting a control signal including change command data according to an embodiment of the present invention. FIG. 5 is a view illustrating an example of an update scenario of display information according to an embodiment of the present invention. It is explanatory drawing of the some event by the update scenario with respect to each of the some electronic shelf label display by one Example of this invention.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. In addition, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. Accordingly, the shape and size of elements in the drawings may be exaggerated for a clearer description.

  FIG. 1 is a block diagram of an electronic shelf label display system according to an embodiment of the present invention.

  Referring to FIG. 1, an electronic shelf label display system according to an embodiment of the present invention includes an electronic shelf label display server 100 (eg, ESL Server), a plurality of electronic shelf label display repeaters 200 (eg, Gateway), and a plurality of electronic shelf label display servers. Electronic shelf label display 300 (e.g., electronic shelf label).

  As an example, the electronic shelf label display server 100 is connected to the electronic shelf label display repeater 200 via a wired communication network (for example, Ethernet (registered trademark)), and displays display information mapped with a display information index. The display data and the change command data for changing the display information can be transmitted to the plurality of electronic shelf label display repeaters 200.

  Here, in addition to the display information, the display data may further include non-display information related to a pre-mapped product. The display information may include at least one of information related to the corresponding product, public information, and sales related information. The non-display information may be identification information or address information.

  The display information may be an image or text, and may be text or design of the entire page or part. The display information is not particularly limited to a specific shape or information as long as it can be electrically displayed on the display panel.

  Each of the plurality of electronic shelf label display repeaters 200 can be connected to a plurality of electronic shelf label display groups via a wireless communication network (eg, wireless fan communication).

  Each of the plurality of electronic shelf label display repeaters 200 receives at least one electronic shelf label display device including a data signal including display data provided from the electronic shelf label display server 100 and a control signal including the change command data. 300 can be transmitted.

  On the other hand, each of the plurality of repeaters can form a PAN (Personal Area Network) communication network in order to perform wireless communication by dividing each group including a plurality of electronic shelf label displays. Here, the plurality of electronic shelf label display groups can be identified from each other through identification information called group ID (Group ID), and the plurality of electronic shelf label display groups can be identified through identification information called MAC address (MAC address). .

  As an example, the identification information in each embodiment of the present invention may be one of the group ID and the MAC address.

  Each of the plurality of electronic shelf label display groups may include a plurality of electronic shelf label displays. Each of the plurality of electronic shelf label display devices 300 receives a data signal from the electronic shelf label display repeater 200 by wireless communication with the electronic shelf label display repeater 200, and displays the display included in the data signal. Data can be saved.

  Each of the plurality of electronic shelf label displays 300 receives the control signal from the electronic shelf label display repeater 200 and changes the display data to the change command data based on the change command data included in the control signal. Display information mapped to the included display information index can be retrieved and displayed on the screen.

  FIG. 2 is a block diagram of an electronic shelf label display according to an embodiment of the present invention.

  Referring to FIG. 2, the electronic shelf label display 300 may include a communication unit 310, a control unit 320, a memory unit 330, and a display unit 340.

  The electronic shelf label display 300 may further include a time management unit 350.

  The communication unit 310 can receive a data signal and a control signal from the electronic shelf label display repeater 200 by performing wireless communication with the electronic shelf label display repeater 200. Here, the communication unit 310 may transmit a data request and confirmation (ACK) signal in the process of receiving the data signal and the control signal.

  The control unit 320 receives and stores display data including display information mapped with a display information index through the communication unit 310 before a predetermined set time (Tset), and stores the display data of the set time (Tset). It is possible to control to receive the change command data later and retrieve the display information mapped to the display information index included in the change command data from the stored display data and display it on the screen.

  The memory unit 330 can store display data including display information to which the display information index is mapped.

  As an example, the memory unit 330 may include an index-display information lookup table 335 in which a plurality of display information 1 to display information N mapped to a plurality of display information indexes P1 to PN are stored.

  The display data may include at least one display information to which a display information index is mapped.

  The display unit 340 can display the retrieved display information on the screen under the control of the control unit 320.

  Here, as the display unit 340, a display panel that can electrically display information, such as an electronic paper panel or an LCD panel, can be applied.

  In addition, the time management unit 350 can provide current time information to the control unit 320.

  As an example, the time management unit 350 may include a precise timepiece. As an example different from this, it is possible to receive precise time information from the electronic shelf label display repeater 200 and correct the error of the current time information. As an example, the time information may be included in a wake-up frame. In this case, the electronic shelf label indicator receives a wake-up signal including the wake-up frame and is included in the wake-up frame. The error in the current time can be corrected using the time information.

  FIG. 3 is a view showing display information for each display information index of the electronic shelf label display system according to the embodiment of the present invention.

  1 to 3, the display unit 340 of the electronic shelf label display 300 can display the current display information (SCR1), and the memory unit 330 stores the index-display information lookup table 335 (see FIG. 3). 2), display information 1 (SCR2) mapped to the display information index P1 and display information 2 (SCR3) mapped to the display information index P2 can be stored.

  The memory unit 330 may include display information 1 to display information N mapped to each of the plurality of display information indexes P1 to PN.

  FIG. 4 is an operation flowchart of the electronic shelf label display system and the electronic shelf label display according to an embodiment of the present invention.

  Referring to FIG. 4, the electronic shelf label display system may include an electronic shelf label display server 100, an electronic shelf label display repeater 200, and an electronic shelf label display 300.

  Of the operations related to the electronic shelf label display server 100, the electronic shelf label display repeater 200, and the electronic shelf label display 300 shown in FIG. 4, the same operations as those described with reference to FIGS. , The redundant description can be omitted.

  First, the electronic shelf label display server 100 can generate display data to be displayed on the electronic shelf label display 300 and provide it to the electronic shelf label display repeater 200 (S100). The repeater 200 can transmit a data signal including the display data to at least one electronic shelf label display (S200).

  At this time, the electronic shelf label display 300 includes a data signal including display data having display information mapped from the electronic shelf label display repeater 200 to the display information index before a predetermined set time (Tset). Can be received (S300).

  Thereafter, the electronic shelf label display 300 can store display data included in the data signal (S400).

  Also, the electronic shelf label display server 100 can generate change command data displayed on the electronic shelf label display 300 and provide it to the electronic shelf label display repeater 200 (S500). The display repeater 200 can transmit a control signal including the change command data to at least one electronic shelf label display (S600).

  At this time, the electronic shelf label display 300 can receive a control signal including change command data including a display information index from the electronic shelf label display repeater 200 after a set time (Tset) ( S700).

  Subsequently, the electronic shelf label display 300 can search the display data stored in advance for display information mapped to the display information index included in the change command data of the control signal (S800).

  Next, the electronic shelf label display 300 can display the searched display information on a screen through a display unit (S900).

  For example, in a state where each of the plurality of electronic shelf label displays 300 has received and stored the same display information in advance and each of the plurality of electronic shelf label displays 300 needs to be changed at the same time, However, the display information can be changed in the display unit within an error within a maximum of several seconds by a control signal from the server.

  As described above, if there is a price fluctuation plan, the electronic shelf label display server 100 sends display data including display information through the electronic shelf label display repeater 200 before the set time from the time when price fluctuation is desired. It can be transmitted to the display 300 in advance.

  Thereafter, the electronic shelf label display server 100 can control updating of each of the plurality of electronic shelf label displays by using a control signal including a display information index and / or a schedule time.

  FIG. 5 is a diagram for explaining the operation of the electronic shelf label display system according to one embodiment of the present invention.

  Referring to FIG. 5, an electronic shelf label display system according to an embodiment of the present invention includes an electronic shelf label display server 100 (eg, ESL Server), a plurality of electronic shelf label display repeaters 200 (eg, Gateway), and a plurality of electronic shelf label display servers. Electronic shelf label display 300 (e.g., electronic shelf label).

  Hereinafter, in the description of the operation method of the electronic shelf label display system according to the embodiment of the present invention, the description of the operation performed with reference to FIGS. 1 to 4 can be applied. Thereby, in the description regarding the operation method of the electronic shelf label display system, the detailed description that overlaps as much as possible can be omitted.

  As an example, the electronic shelf label display server 100 generates and provides display data including display information to which a display information index is mapped, and thereafter, changes instruction data for changing the display information is transmitted to a plurality of electronic shelf labels. It can be transmitted to the display repeater 200.

  For example, the electronic shelf label display server 100 is an update including at least one event having a display information index and a schedule time mapped to each other in order to update display information for each of the plurality of electronic shelf label displays 300. The change command data may include the update scenario.

  Each of the plurality of electronic shelf label display repeaters 200 transmits at least one electronic shelf label before a predetermined set time (Tset) including a display data provided from the electronic shelf label display server 100. A control signal including the change command data can be transmitted to at least one electronic shelf label display 300 after the set time (Tset).

  At this time, the electronic shelf label display repeater 200 can transmit the data by distributing the data transmission time to each of the plurality of electronic shelf label displays in order to avoid communication collision.

  Each of the plurality of electronic shelf label displays 300 receives a data signal from the electronic shelf label display repeater 200 before a predetermined set time (Tset), and displays the data included in the data signal. Data can be stored in the memory unit 330.

  Each of the plurality of electronic shelf label displays 300 receives a control signal from the electronic shelf label display repeater 200 after the set time (Tset) and is based on the change command data included in the control signal. Display information can be retrieved from the display data and displayed on the screen through the display unit 340.

  As described above, the electronic shelf label display server 100 can control display information transmitted in advance to a plurality of electronic shelf label displays by using a control signal including a scenario that can include various schedules. As an example, the schedule A will be described with reference to FIG.

  FIG. 6 is an exemplary view showing an operation method of the electronic shelf label display system according to an embodiment of the present invention.

  Referring to FIG. 6, the electronic shelf label display server 100 generates schedule A data and operates the electronic shelf label display repeater 200 to operate the electronic shelf label display device 200 in order to operate the electronic shelf label display. The electronic shelf label display 300 can display images A, B and C on the screen according to the schedule A.

  The electronic shelf label display repeater 200 stores the schedule A data in an internal database in preparation for disconnection from the electronic shelf label display server 100, and the electronic shelf label display 300. A function that can be processed each time a request is received from is included.

  Further, the schedule A includes a plurality of events A, events B, events C, and events D for which the electronic shelf label display must be changed.

  As an example, index A, index B, index C and index D, and schedule time indicating the display time are mapped to each of the plurality of events A, event B, event C, and event D.

  For example, schedule time 8:00 am to 10:00 am is mapped to index A, schedule time 10:00 am to 13:00 pm is mapped to index B, schedule time 13:00 pm to 15:00 pm is mapped to index C, Assuming that schedule time 15:00 pm to 17:00 pm is mapped to the index D, the electronic shelf label display displays the image A mapped to the index A at 8:00 am, and the index at 10:00 am. The image B mapped to B can be displayed, the image C mapped to the index C can be displayed at 13:00 pm, and the image D mapped to the index D can be displayed at 15:00 pm.

  Here, the image is only an example for the display information, and the display information is not limited to the image. In addition, the control signal can include a maximum of 12 events in a control data packet that can be transmitted at one time, but is not limited thereto. Each of the index A, the index B, the index C, and the index D is a display information index mapped to each of the image A, the image B, the image C, and the image D.

  Such a control signal will be described with reference to FIGS.

  FIG. 7 is a diagram illustrating a modified command data packet according to an embodiment of the present invention, and FIG. 8 is another diagram illustrating a modified command data packet according to an embodiment of the present invention.

  Referring to FIGS. 7 and 8, the change command data included in the control signal according to an embodiment of the present invention may be formed as a broadcast packet as shown in FIG. As can be seen, it can also be formed with unicast packets.

  First, referring to FIG. 7A, the change command data may include a group ID and a display information index k (where k is a natural number of 1 or more).

  Referring to FIG. 7B, the change command data may include an event k having a group ID, a display information index k, and schedule time information k.

  Referring to FIG. 7C, the change command data may include a group ID and a plurality of events 1 to N, and each of the events 1 to N may include a display information index and schedule time information. it can.

  The group ID in FIGS. 7A, 7B, and 7C is information that can identify a plurality of electronic shelf label display groups, and when the control signal includes the same group ID, The control signal can be transmitted to all the electronic shelf label displays connected to one electronic shelf label display repeater.

  Referring to FIG. 8A, the change command data may include identification information and display information index k (where k is a natural number of 1 or more).

  Referring to FIG. 8B, the change command data may include an event k having identification information, display information index k, and schedule time information k.

  Referring to FIG. 8C, the change command data may include identification information and a plurality of events 1 to N, and each of the events 1 to N may include a display information index and schedule time information. .

  The identification information in FIGS. 8A, 8B, and 8C is information that can identify each of the plurality of electronic shelf label displays, and may be a MAC address, for example. In such a case, if the control signal includes the same identification information, the control signal can be transmitted to one electronic shelf label display, and the electronic shelf label that is a target to be transmitted by using the identification information. Only one indicator can be specified.

  FIG. 9 is a flowchart showing an operation method of the electronic shelf label display system according to the embodiment of the present invention.

  Hereinafter, in the description of the operation method of the electronic shelf label display system according to the embodiment of the present invention, the description of the operation performed with reference to FIGS. 1 to 8 can be applied. Thereby, in the description regarding the operation method of the electronic shelf label display system, the detailed description that overlaps as much as possible can be omitted.

  Referring to FIGS. 1 to 9, first, in step S100, the electronic shelf label display server 100 generates display data including display information mapped with the display information index and transmits the display data to the electronic shelf label display repeater 200. be able to.

  In step S200, the electronic shelf label display repeater 200 transmits at least one data signal including the display data provided from the electronic shelf label display server 100 before a predetermined set time (Tset). It can be transmitted to the electronic shelf label display 300.

  In step S300, the at least one electronic shelf label display 300 can receive the data signal from the electronic shelf label display repeater 200 before a predetermined set time (Tset).

  In step S400, the electronic shelf label display device 300 that has received the data signal can store display data included in the data signal.

  The above-described operation can be performed before the set time (Tset). Here, the set time (Tset) is a time for the electronic shelf label display server 100 to generate the change command data after the time when the display data transmission to the corresponding electronic shelf label display has to be completed. If it is before, it is enough.

  In addition, after the set time (Tset), the following operation can be performed.

  In step S500, the electronic shelf label display server 100 can provide the electronic shelf label display repeater 200 with change command data including a display information index.

  In step S600, the electronic shelf label display repeater 200 may transmit a control signal including the change command data to at least one electronic shelf label display 300 after the set time (Tset).

  In step S <b> 700, the at least one electronic shelf label display 300 can receive a control signal from the electronic shelf label display repeater 200.

  In step S800, the at least one electronic shelf label display 300 may search the display information stored in advance for display information mapped to the display information index included in the change command data of the control signal. it can.

  In step S900, the at least one electronic shelf label display 300 can display the searched display information on the screen.

  FIG. 10 is a transmission example of display data of an electronic shelf label display system according to an embodiment of the present invention, and FIG. 11 is a display of an electronic shelf label display repeater and an electronic shelf label display according to an embodiment of the present invention. It is data transmission illustration figure.

  The step of receiving the data signal (S300) will be described with reference to FIGS.

  First, the electronic shelf label display repeater 200 can generate a wakeup frame and transmit a wakeup signal including the wakeup frame as a broadcast packet. In response to this, all the electronic shelf label displays connected to the electronic shelf label display repeater 200 can wake up and respond (S210).

  As an example, the repeater may transmit a wake-up signal including a wake-up frame once every 300 seconds through a wake-up channel for 15 seconds.

  At this time, in order to prevent collision between wakeup signals in a wireless environment, each repeater can use a method of transmitting its own wakeup signal in different time slots.

  For example, the electronic shelf label display 300 can receive a wake-up signal including an identification ID from the electronic shelf label display repeater 200. In this case, when the identification ID included in the wake-up signal matches the self-identification ID, it is woken up and data can be requested to the electronic shelf label display repeater 200.

  The electronic shelf label display repeater 200 can transmit a wakeup signal including a wakeup frame to a plurality of predetermined electronic shelf label displays 300 through a predetermined wakeup channel. As an example, the wake-up channel may be a transmission channel for the electronic shelf label display repeater 200 to transmit to the electronic shelf label display 300 in a broadcasting manner.

  Note that the electronic shelf label display repeater 200 can transmit a wake-up frame (Wake-up Frame) once every 300 seconds through the wake-up channel for 15 seconds.

  For example, the wake-up frame is an accurate current time for correcting an error between the wake-up ID corresponding to the identification ID of the wake-up target device and the current time on the corresponding electronic shelf label display. Information can be included.

  At this time, in order to prevent collision between the wake-up frames in the wireless environment, each repeater transmits its own wake-up frame in a different time slot. A transmission method can be used.

  Also, the electronic shelf label display 300 that has been woken up requests data from the electronic shelf label display repeater 200 through a predetermined data channel so as to be distinguished from the wake-up channel, and transmits the data. Can be done. The matters related to the wake-up channel and the data channel can be applied to each embodiment of the present invention.

  As described above, after the wake-up signal is transmitted through the wake-up channel, the display data can be transmitted through the data channel.

  Subsequently, when the corresponding electronic shelf label display 300 receives a wake-up signal from the electronic shelf label display repeater 200, a data information request (Data Info. Request) signal is transmitted to the electronic shelf label display repeater 200. Then, a data information response (Data Info. Response) signal can be received from the electronic shelf label display repeater 200 (S320).

  Here, the data information response (Data Info. Response) signal includes the total number of data packets to be transmitted, the overall data size, the compressed data size, the compression method, the checksum, and the data as an electronic shelf label. Time information (Time to Update Image) that is actually displayed on the display unit of the display device may be included.

  Next, the electronic shelf label display 300 transmits a data request signal to the electronic shelf label display repeater 200 based on the data information response signal, and the electronic shelf label display repeater 200 transmits the data request signal. A data response signal can be received (S330).

  As an example, although there is a slight difference depending on the size of the display unit of the electronic shelf label display 300, the electronic shelf label display can be performed by transmitting the entire data only once in order to limit the payload size of the data transmission packet. If all data cannot be transmitted to 300, several data transmission packets can be transmitted multiple times, and the electronic shelf label display repeater 200 can transmit the entire data to the electronic shelf label display 300. At this time, information such as the total number of data packets, the entire data size, the compressed data size, and the compression method can be transmitted in advance through the data information response signal.

  Thereby, when the capacity of the display data is large, the display data can be divided and transmitted based on the total number of the data packets.

  As described above, when the transmission of the display data is completed, the electronic shelf label display can transmit an acknowledgment (ACK) signal to the server through the repeater. The electronic shelf label display server 100 can recognize the completion of transmission of display data based on the confirmation (ACK) signal.

  As an example, a repeater may transmit a wake-up frame for 15 seconds once every 300 seconds through a wake-up channel.

  At this time, in order to prevent collision between the wake-up frames in the wireless environment, each repeater transmits its own wake-up frame in a different time slot. A transmission method can be used.

  FIG. 12 is an explanatory diagram of broadcasting and unicasting for transmitting a control signal including change command data according to an embodiment of the present invention.

  Referring to FIGS. 7, 8 and 12, the control signal including the change command data is broadcasted as in the first case (CA1), and a plurality of first to Nth electronic shelf label indicators ( TAG1-TAGN).

  Further, the control signal including the change command data is unicast as in the second case (CA2), and is sent to a specific electronic shelf label display (TAGk, where k is a natural number of 1 or more). Can be sent.

  FIG. 13 is a view showing an example of a display information update scenario according to an embodiment of the present invention.

  In FIG. 13, TAG1, TAG2, TAG3, TAG4, TAG5 and TAG6 may be MAC addresses (Mac Address) of the electronic shelf label display, and page index N (Page Index N, where N is the page number) is It means that it must be changed to the Nth page. Further, the page in FIG. 13 is an example of display information, and the page index means a display information index.

  Referring to FIG. 13, when the server (Server) transmits a control signal for changing the front page of the electronic shelf label display (TAG) to the relay (Gateway), the relay (Gateway) has passed a certain time. A wakeup signal can be transmitted to wake up the electronic shelf label display (TAG) later. Here, the wake-up signal can be transmitted periodically. As an example, if the transmission cycle of the wake-up signal is 5 minutes, the front page of the electronic shelf label display is changed unless a maximum of 5 minutes elapses. Can't update.

  For example, when a data request is transmitted after the electronic shelf label display (TAG) receives the wake-up signal, the repeater (Gateway) confirms the MAC address (Mac Address) of the electronic shelf label display. To do. Next, after comparing with the MAC address (Mac address) of the electronic shelf label display (TAG) stored in the repeater (Gateway), if there is information to update the matching electronic shelf label display, By including the corresponding page index in the signal and transmitting the control signal to the corresponding electronic shelf label display, the corresponding electronic shelf label display can display the page mapped to the corresponding page number.

  FIG. 14 is a diagram illustrating a plurality of events according to an update scenario for each of a plurality of electronic shelf label displays according to an embodiment of the present invention.

  Referring to FIG. 14, a server according to an embodiment of the present invention may include an update scenario for each of a plurality of electronic shelf label displays.

  Referring to the update scenario shown in FIG. 14, the scenario for each of the first to Nth electronic shelf label indicators (Tag1 to TagN) includes first to sixth events (Event # 1 to # 6). Can include different schedule times. Here, the horizontal length of the first to sixth events (Event # 1 to # 6) may be the relative length of the schedule time.

  In the electronic shelf label display system according to the embodiment of the present invention as described above, display information such as a large-capacity image is transmitted in advance to a plurality of electronic shelf label displays, and then the server has a small capacity. Updates to a plurality of electronic shelf label displays can be controlled using the control signal.

  According to this, since data with a large capacity is transmitted in advance, it is possible to cope with a problem due to communication interference or communication failure, and then to control updates through a control signal, so that various situation changes can be accommodated. There are also advantages.

  In addition, it is possible to control a specific electronic shelf label display, but it is also possible to perform batch operation control in which a plurality of electronic shelf label displays are performed in a single operation. Various front page changes such as batch operation and sequential operation for the electronic shelf label display can be achieved.

100 Electronic shelf label display server 200 Electronic shelf label display repeater 300 Electronic shelf label display 310 Communication unit 320 Control unit 330 Memory unit 340 Display unit 350 Time management unit

Claims (27)

A communication unit that performs wireless communication with the electronic shelf label display repeater;
Display data including display information to which a display information index is mapped through the communication unit is received and stored before a predetermined set time, change command data is received after the set time, and the change command data A control unit for controlling the display information mapped to the display information index included in the display information to be retrieved from the stored display data and displayed on the screen;
A memory unit for storing display data including display information mapped with a display information index received before the set time ;
An electronic shelf label display, comprising: a display unit configured to display the searched display information on a screen under the control of the control unit.   The electronic shelf according to claim 1, wherein the memory unit includes an index-display information lookup table in which a plurality of display information 1 to display information N mapped to a plurality of display information indexes P 1 to PN are stored. Bill indicator. The display data includes at least one display information to which a display information index is mapped,
The electronic shelf label display according to claim 1 or 2, wherein the display information is at least one of information related to the corresponding product, public information, and sales related information.   The electronic shelf label display according to any one of claims 1 to 3, wherein the change command data is transmitted through a broadcast packet signal having a display information index.   5. The electronic shelf label display device according to claim 1, wherein the change command data is transmitted through a broadcast packet signal having at least one event in which a display information index and schedule time information are mapped to each other. 6. .   6. The electronic shelf label display device according to claim 1, wherein the change command data is transmitted through a unicast packet signal having identification information and a display information index of the electronic shelf label display device.   The change command data is transmitted through a unicast packet signal having at least one event in which identification information of an electronic shelf label display, a display information index, and schedule time information are mapped to each other. The electronic shelf label display device of Claim 1. A time management unit for providing current time information to the control unit;
The electronic shelf label display according to any one of claims 1 to 7, wherein the time management unit receives time information from the electronic shelf label display repeater and updates current time information. At least one electronic shelf label display receives a data signal including display data having display information mapped to a display information index from an electronic shelf label display repeater before a predetermined set time;
Storing display data included in the data signal;
Receiving a control signal including change command data including a display information index from the electronic shelf label display repeater after the set time;
Searching the display data stored in advance for display information mapped to the display information index included in the change command data of the control signal;
Displaying the retrieved display information on a screen. A method of operating an electronic shelf label display. An electronic shelf label display server that generates and provides display data including display information to which a display information index is mapped, and then provides change instruction data for changing the display information;
An electronic shelf label display relay for transmitting a data signal including display data provided from the electronic shelf label display server before a predetermined set time and transmitting a control signal including the change command data after the set time And
Including at least one electronic shelf label display wirelessly communicating with the electronic shelf label display repeater, wherein the at least one electronic shelf label display receives the data signal and the control signal from the electronic shelf label display repeater. A communication department;
Display data included in the data signal received before a predetermined set time is stored, change command data included in the control signal is received after the set time, and included in the change command data A control unit for controlling display information mapped to a display information index to be displayed from the stored display data and displayed on the screen;
A memory unit for storing display data including display information mapped with a display information index received before the set time ;
An electronic shelf label display system, comprising: a display unit configured to display the searched display information on a screen under control of the control unit. The server includes an update scenario including at least one event having a display information index and a schedule time mapped to each other for updating display information for each of the plurality of electronic shelf label displays,
The electronic shelf label display system according to claim 10, wherein the change command data includes the update scenario. The display data includes at least one display information to which a display information index is mapped,
The electronic shelf label display system according to claim 10 or 11, wherein the display information is at least one of information related to the corresponding product, public information, and sales related information.   The electronic shelf label display system according to any one of claims 10 to 12, wherein the change command data is transmitted through a broadcast packet signal having a display information index.   The electronic shelf label display system according to any one of claims 10 to 13, wherein the change command data is transmitted through a broadcast packet signal having at least one event in which a display information index and schedule time information are mapped to each other. .   The electronic shelf label display system according to any one of claims 10 to 14, wherein the change command data is transmitted through a unicast packet signal having identification information and a display information index of an electronic shelf label display.   16. The change instruction data is transmitted through a unicast packet signal having at least one event in which identification information of an electronic shelf label display, a display information index, and schedule time information are mapped to each other. The electronic shelf label display system of Claim 1. The at least one electronic shelf label display further includes a time management unit that provides current time information to the control unit,
The electronic shelf label display system according to any one of claims 10 to 16, wherein the time management unit receives time information from the electronic shelf label display repeater and updates current time information. The electronic shelf label display server generates display data including display information mapped with the display information index and transmits the display data to the electronic shelf label display repeater;
The electronic shelf label display repeater transmits a data signal including the display data provided from the electronic shelf label display server to at least one electronic shelf label display before a predetermined set time;
The at least one electronic shelf label display receives the data signal from the electronic shelf label display repeater before a predetermined set time;
The electronic shelf label display that has received the data signal stores display data included in the data signal;
The electronic shelf label display server providing change instruction data including a display information index to the electronic shelf label display repeater;
The electronic shelf label display repeater transmits a control signal including the change command data to at least one electronic shelf label display after the set time;
The at least one electronic shelf label display receives a control signal from the electronic shelf label display repeater;
The at least one electronic shelf label display device searches the display data stored in advance for display information mapped to a display information index included in the change command data of the control signal;
An operation method of the electronic shelf label display system, comprising: the at least one electronic shelf label display device displaying the searched display information on a screen. Receiving the data signal comprises:
A first step of transmitting a data information request signal and receiving a data information response signal when a wake-up signal is received from the electronic shelf label display repeater;
The operation method of the electronic shelf label display system according to claim 18, further comprising a second step of transmitting a data request signal based on the data information response signal and receiving the data response signal. The display data includes at least one display information to which a display information index is mapped,
The operation method of the electronic shelf label display system according to claim 18 or 19, wherein the display information is at least one of information related to the corresponding product, public information, and sales related information.   The operation method of the electronic shelf label display system according to any one of claims 18 to 20, wherein the control signal is a signal for transmission to a plurality of electronic shelf label displays.   The operation method of the electronic shelf label display system according to any one of claims 18 to 21, wherein the control signal is a signal for transmission to one specific electronic shelf label display.   The operation method of the electronic shelf label display system according to any one of claims 18 to 22, wherein the control signal is a broadcast packet signal having a display information index.   The operation method of the electronic shelf label display system according to any one of claims 18 to 23, wherein the control signal is a broadcast packet signal having at least one event in which a display information index and schedule time information are mapped to each other. .   The operation method of the electronic shelf label display system according to any one of claims 18 to 24, wherein the control signal is transmitted through a unicast packet signal having identification information and a display information index of the electronic shelf label display.   26. The control signal according to claim 18, wherein the control signal is transmitted through a unicast packet signal having at least one event in which identification information of an electronic shelf label display, a display information index, and schedule time information are mapped to each other. 2. An operation method of the electronic shelf label display system according to item 1.   27. The electronic shelf label display system according to any one of claims 18 to 26, wherein the at least one electronic shelf label display device receives time information from the electronic shelf label display repeater and updates current time information. How it works.

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