| 摘要 |
An ITS vehicle-mounted device (17) sends/receives data in DSRC Town Car Life Navi multi-content form. As a vehicle enters the communication area of a roadside apparatus (11), the past drop-in place information is sent to the ITS vehicle-mounted device (17) so that the driver can receive beneficial advertisement information from the ITS vehicle-mounted device (17). Places where the power of the ITS vehicle-mounted device (17) is turned off may be registered as the past drop-in places contained in said past drop-in place information, and the places of an idling stop may also be registered in the past drop-in place information. In that case, the accuracy of the past drop-in place information is low. Highly accurate past drop-in place information can be produced, however. When the stop time is short at a place where the power of the ITS vehicle-mounted device (17) is turned off or when a place is on the road right before an intersection as indicated by comparison with map data, said place will not be registered in the past drop-in place information. |
