FIELD: radio engineering, communication.
SUBSTANCE: disclosed passenger information control device (2) having a video display controller (13) which transmits video data (60c) sent from a ground transmission controller to display devices (1) in a train includes: a storage unit (8) which stores a program table and the video data (60a), the program table storing a number (9) of times an advertisement video has been presented, a validity period of the advertisement video, a time period from the last presentation time to the present, and a volume of the video data associated with each advertisement; a deletion determining unit (11) which determines whether to designate the video data (60a) as a candidate for deletion based on a program table (40c); and a deleting unit (12) which deletes the video data (60a) stored in the storage unit (8) based on determination by the deletion determining unit (11).
EFFECT: efficient use of storage capacity of a storage medium.
5 cl, 12 dwg
