| 摘要 |
PURPOSE:To prevent erroneous information display owing to steep turn after passing just under a beacon in navigation transmitting road information to a driver, etc. CONSTITUTION:Navigation which displays information from the beacon to a vehicle is provided with a beacon passing time measuring timer 5 measuring a passing time after the vehicle passed just under the beacon, a vehicle traveling direction quick change detecting means 6 detecting the quick change of the traveling direction of the vehicle and an information display reset means 7 resetting the display of information when the traveling direction quickly changes in a prescribed time after the vehicle passes just under the beacon based on the passing time of the beacon passing time measurement timer 5 and the quick change of the traveling direction of the traveling direction quick change detection means 6. |
