Patent ID: 7689460

Claim:
A store management system comprising: a management apparatus configured to transmit a first signal and a second signal; a tag having a first display and a first antenna, the tag receiving the first signal transmitted from the management apparatus, the first display being configured to display information according to the first signal; a display apparatus having a second display and a second antenna, the display apparatus receiving the second signal transmitted from the management apparatus, the second display being configured to display information according to the second signal, the display apparatus being configured to directly communicate with the tag using the first and second antennas; and a display rack configured to store a plurality of merchandise each having the tag, the display apparatus being attached to the display rack, the display rack having a space assigned to the display apparatus, the tag having a first memory that stores first information about the merchandise, the display apparatus having a second memory that stores second information about predetermined merchandise which is addressed to the space, wherein the display apparatus is configured to check whether the first information is in agreement with the second information regarding each tag of the merchandise addressed to the space, in a case that a rate or an absolute value of the tags which are not in agreement is below a predetermined value, the display apparatus displays a first notification, and in a case that a rate or an absolute value of the tags which are not in agreement is larger than the predetermined value, the display apparatus displays a second notification different from the first notification.