| 摘要 |
A passenger information control device having a video display controller that transmits video data sent from a ground transmission controller to display devices in a train includes: a storage unit that stores a program table and the video data, the program table storing a number 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, being associated with each advertisement; a deletion determining unit that determines whether to designate the video data as a candidate for deletion based on a program table; and a deleting unit that deletes the video data stored in the storage unit based on determination by the deletion determining unit. |
