| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic apparatus capable of efficiently using a navigation function of an external device.SOLUTION: A changeover control program 200 of an on-vehicle device is configured by including: a travel point determination section 210 for determining whether a self vehicle position can be displayed on the road of map data; a display impossible travel point holding section 220 for holding a self vehicle position determined not to be displayed on the road of the map data as a display impossible travel point; a prediction road travel determination section 240 for determining whether a search route travels a road to be expected based on the display impossible travel point when a route is searched; and a navigation function selection section 250 for selecting an external navigation function having the latest map data when the travel on the predicted road is determined.SELECTED DRAWING: Figure 3 |
