Electronic shelf label system, electronic shelf label terminal, electronic shelf label server and control method for the same

1. An electronic shelf label system comprising:

a plurality of electronic shelf label terminals provided for corresponding compartments on a commodity shelf in which commodities are arranged; and

an electronic shelf label server configured to distribute a start command to the plurality of electronic shelf label terminals via a network,

wherein each of the plurality of electronic shelf label terminals includes:

a display;

a first image storage in which a first image containing the price of a commodity displayed in the compartment of the commodity shelf equipped with a first electronic shelf label terminal of the electronic shelf label terminals is stored;

a second image storage in which a second image, which is completed when simultaneously displayed on displays of n (n≧2) electronic shelf label terminals including the first electronic shelf label terminal and arranged in one direction, is stored,

a timer counter configured to count up every predetermined interval and to be reset upon receipt of the start command; and

a controller configured to repeatedly control the displays based on a count value obtained by the timer counter to display the first image stored in the first image storage for a first length of time corresponding to the predetermined interval and thereafter continuously display the second image stored in the second image storage for at least a second length of a time which is n times greater than the first length of time, where n is the number of electronic shelf label terminals aligned in the one direction.

2. The electronic shelf label system according to claim 1 , wherein

each of the plurality of electronic shelf label terminals further includes a numeric storage for storing a multiple in changeable manner, and

the controller sets a time obtained by multiplying the first length of time by the multiple stored in the numeric storage as the minimum display time of the second image.

3. The electronic shelf label system according to claim 2 , wherein the electronic shelf label server comprises:

a shelf label position storage configured to store position information of the plurality of electronic shelf label terminals with respect to the commodity shelf,

a communication interface configured to communicate with the electronic shelf label terminals; and

a processor,

wherein the processor determines the allocation of the second image divided into n parts to the n electronic shelf label terminals aligned in one direction, based on the position information of the plurality of electronic shelf label terminals with respect to the commodity shelf stored in the shelf label position storage, and

distributes via the communication interface the second image to the n electronic shelf label terminals that are aligned in the one direction according to the allocation.

4. The electronic shelf label system according to claim 1 , wherein the electronic shelf label server comprises:

a shelf label position storage configured to store position information of the plurality of electronic shelf label terminals with respect to the commodity shelf;

a communication interface configured to communicate with the of the plurality of electronic shelf label terminals, and

a processor,

wherein the processor determines the allocation of the second image divided into n parts to the n electronic shelf label terminals aligned in one direction, based on the position information of the plurality of electronic shelf label terminals with respect to the commodity shelf stored in the shelf label position storage, and distributes via the communication interface the second image to the n electronic shelf label terminals that are aligned in the one direction according to the allocation.

5. An electronic shelf label terminal comprising:

a radio circuit configured to communicate with an electronic shelf label server via a radio repeater;

a display;

a first image storage configured to store a first image containing the price of a commodity arranged in a compartment on a commodity shelf equipped with the electronic shelf label terminal;

a second image storage configured to store a second image, which is completed when simultaneously displayed on displays of n (n≧2) electronic shelf label terminals including the electronic shelf label terminal and aligned in one direction;

a timer counter configured to count up every predetermined interval and to be reset when the radio circuit receives a start command from the electronic shelf label server; and

a controller configured to repeatedly control the displays based on a count value obtained by the timer counter to display the first image stored in the first image storage for a first length of time corresponding to the predetermined interval and thereafter continuously display the second image stored in the second image storage for at least a second length of time which is n times greater than the first length of time, when n is the number of electronic shelf label terminals aligned in the one direction.

6. An electronic shelf label server comprising:

a communication interface configured to communicate with a plurality of electronic shelf label terminals provided for corresponding compartments on a commodity shelf in which commodities are arranged, each of the plurality of electronic shelf label terminals comprising a display;

a first image storage in which a first image containing the price of a commodity displayed in the compartment of the commodity shelf equipped with a first electronic shelf label terminal of the electronic shelf label terminals is stored;

a second image storage in which a second image, which is completed when simultaneously displayed on displays of n (n≧2) electronic shelf label terminals including the first electronic shelf label terminal and arranged in one direction, is stored;

a timer counter configured to count up every predetermined interval and to be reset upon receipt of a start command; and

a controller configured to repeatedly control the displays based on a count value obtained by the timer counter to display the first image stored in the first image storage for a first length of time corresponding to the predetermined interval and thereafter continuously display the second image stored in the second image storage for at least a second length of time which is n times greater than the first length of time, where n is the number of electronic shelf label terminals aligned in the one direction;

a shelf label position storage configured to store position information of the plurality of electronic shelf label terminals with respect to the commodity shelf; and

a processor which implements:

a first process in which the first image containing the price of the commodity arranged on the commodity shelf equipped with the electronic shelf label terminal is distributed to the plurality of electronic shelf label terminals;

a second process in which the allocation of the second image divided into n parts to the n electronic shelf label terminals aligned in one direction is determined, based on the position information of the plurality of electronic shelf label terminals with respect to the commodity shelf stored in the shelf label position storage;

a third process in which the second image is distributed according to the determined allocation to the n electronic shelf label terminals that are aligned in the one direction via the communication interface; and

a fourth process in which the start command is distributed to the plurality of electronic shelf label terminals via the communication interface.

7. A control method, including:

storing position information of a plurality of electronic shelf label terminals with respect to a commodity shelf, the plurality of electronic shelf label terminals provided for corresponding compartments on the commodity shelf in which commodities are arranged, each of the plurality of electronic shelf label terminals comprising: a display; a first image storage in which a first image containing the price of a commodity displayed in the compartment of the commodity shelf equipped with a first electronic shelf label terminal of the electronic shelf label terminals is stored; a second image storage in which a second image, which is completed when simultaneously displayed on displays of n (n≧2) electronic shelf label terminals including the first electronic shelf label terminal and arranged in one direction, is stored; a timer counter configured to count up every predetermined interval and to be reset upon receipt of the start command; a controller configured to repeatedly control the displays based on a count value obtained by the timer counter to display the first image stored in the first image storage for a first length of time corresponding to the predetermined interval and thereafter continuously display the second image stored in the second image storage for at least a second length of time which is n times greater than the first length of time, where n is the number of electronic shelf label terminals arranged in the one direction;

distributing the first image containing the price of the commodity arranged on the commodity shelf equipped with the plurality of electronic shelf label terminals to the plurality of electronic shelf label terminals;

determining the allocation of the second image divided into n parts to the n electronic shelf label terminals aligned in one direction, on the basis of the position information of the plurality of electronic shelf label terminals with respect to the commodity shelf;

distributing the second image to the n electronic shelf label terminals aligned in one direction according to the determined allocation; and

distributing the start command to the plurality of electronic shelf label terminals.