| 摘要 |
PROBLEM TO BE SOLVED: To surely guide intersections to be guided in a route guidance. SOLUTION: Data of an intersection to be guided is transmitted from an optical beacon communication device 1 mounted onto a vehicle to an optical beacon 100 on a road. The number of signals present on a route to the intersection to be guided is calculated and sent back to the vehicle by the optical beacon 100 or a control center 102. It is guided at the vehicle, e.g. 'turn to the right at a third intersection' or the like on the basis of the received number of signals. |
