| 摘要 |
PROBLEM TO BE SOLVED: To make an introduction video and an introduction voice of a sightseeing spot reproducible at a suitable timing. SOLUTION: A polygon is set along a road where a sightseeing bus regarding its carrying travels so as to include a sightseeing spot '×'. Whether a vehicle concerned enters the polygon or not is judged based on information such as the vehicle position or the like obtained from a GPS receiver. When the vehicle enters, an introduction video and an introduction voice for the sightseeing spot are started to be reproduced. As compared with a prior art for setting a circle or a square at the spot as the center, the probability of starting to reproduce the video and the voice at a wrong time is lowered. |
