(EN)
27
AUTONOMOUS TRAVEL ASSISTANCE DEVICE, ROADSIDE DEVICE, AND
AUTONOMOUS TRAVEL ASSISTANCE SYSTEM
Abstract
5
A map database (200) stores map data (290). The map data includes
position reference point data including identification information of a position
reference point being set in an intersection area where traffic lanes intersect, join, or
diverge and an absolute position of the position reference point. A communication
system (111) receives the identification information of the position reference point and 10
a relative position of another vehicle to the absolute position of the position reference
point. A vehicle position information processing unit (113) acquires the absolute
position of the position reference point from the position reference point data on the
basis of the received identification information of the position reference point. Then,
the vehicle position information processing unit specifies a position of the another 15
vehicle on the basis of the acquired absolute position of the position reference point
and the received relative position of the another vehicle.
