| 摘要 |
PROBLEM TO BE SOLVED: To obtain a precise and correct current position irrespective of a road shape, by easily correcting and reducing an error in a map matching. SOLUTION: A node detecting part 41 detects nearest node information out of node information, as an own vehicle position in a map matching result, based on a detected own vehicle position, and based on a detected advancing direction change detected by own vehicle position detecting part 1. A correction selecting part 42 selects a prescribed correction method, and executes prescribed correction by the correction method, referring to link information stored in a map information storage part 20. COPYRIGHT: (C)2007,JPO&INPIT |
