| 摘要 |
An advertising device, which outputs advertisement when a door is opened in a product display shelf having the door, comprises: a door-open detecting sensor sensing opening of the door; an advertisement output unit for outputting an advertisement; and a controller which is arranged to receive advertisement information through a communication network, receives a signal from the door-open detecting sensor, and, when the door is open, controls the advertisement output unit such that advertisement information received from an advertisement management server through the communication network is outputted through the advertisement output unit. |
