| 摘要 |
PURPOSE:To easily switch the route guidance on the way and in the vicinity of the destination by searching the route from the destination and the starting point and outputting guidance information, based on a necessary sensor output, and switching to the route guidance by an input of the identification number of the guidance starting point. CONSTITUTION:From the destination and the starting point from an input part 7, a data processing control part 1 searches a route, based on data bases 10 - 12, and also, determines a running history and a position of a vehicle from a sensor output of a range finder 5, a steering angle meter 6, etc., and displays the guidance such as the route, a distance from the present position to the destination, etc., on a display part 14. In this state, when a vehicle approaches the vicinity of the destination and the identification number of a gas station, etc., received through a receiving antenna 3 and a receiver 4 is inputted automatically, its point becomes a guidance start point and the guidance of the display part 14 is switched automatically to navigation leading, and in accordance with a situation, the guidance is switched automatically and easily. |
