| 摘要 |
PROBLEM TO BE SOLVED: To provide an in-vehicle machine capable of accurately obtaining the relative position of an on-road machine and a vehicle while suppressing a size increase and a cost increase. SOLUTION: The drive support part of the in-vehicle machine defines the position of the vehicle at the point of time of acquiring lane notification data as a temporary reference position RD, and obtains a position separated from the temporary reference position RD for the added distance of a first period distance D1 at which the traveling speed of the vehicle is multiplied with the transfer time from a transmission/reception part of the lane notification data, a second period distance D2 at which the traveling speed of the vehicle is multiplied with the transfer time from an optical beacon to the transmission/reception part of the lane notification data, and an upload correction distance CUL indicating a distance from an origin position SN within a DL zone recognized from road information data to a position at the point of time of starting the transmission of the lane notification data as a distance origin position SN. COPYRIGHT: (C)2011,JPO&INPIT |
