Abstract: An electronic device includes a communication circuit, and at least one processor connected to the communication circuit. The at least one processor may be configured to broadcast a device identification (ID) of the electronic device and an Internet protocol (IP) address of the electronic device through the communication circuit. The at least one processor may be configured to receive a token encrypted by an external electronic device and data of the external electronic device through the communication circuit. The at least one processor may be configured to decrypt the encrypted token by using a private key of the electronic device. The at least one processor may be configured to transmit the data of the external electronic device to a server in a cloud by using the decrypted token through the communication circuit.

Abstract: A digital price displayer and an ESL system comprising the same are provided. The displayer includes a power supplier mounted on a product-displayed shelf for supplying a power; a display main body attachable to and detachable from the shelf and receiving power supplied from the power supplier, and outputting a price, a specification and an advertisement image of a product displayed on the shelf; an accommodator provided at the shelf, formed at one side with an anode and formed at the other side with a cathode for the display main body to be electrically connected to the power supplier if the display main body is fixed to the accommodator; and a coupler provided at the display main body to be slidingly coupled with the accommodator for electrical connection with the anode and the cathode and to prevent from being separated from the accommodator.

Abstract: Disclosed is a digital price displayer and an ESL system comprising the same, wherein the displayer includes a power supplier mounted on a product-displayed shelf for supplying a power; a display main body attachable to and detachable from the shelf and receiving power supplied from the power supplier, and outputting a price, a specification and an advertisement image of a product displayed on the shelf; an accommodator provided at the shelf, formed at one side with an anode and formed at the other side with a cathode for the display main body to be electrically connected to the power supplier if the display main body is fixed to the accommodator; and a coupler provided at the display main body to be slidingly coupled with the accommodator for electrical connection with the anode and the cathode and to prevent from being separated from the accommodator.