DESTINATION GUIDING DEVICE USED FOR VEHICLE NAVIGATION

摘要

PURPOSE:To sharply reduce the amount of stored data of the title device, simplify the device, and give a guidance at appropriate timing by outputting the guidance about a point at which a vehicle must make a turn for reaching its destination at a fixed distance this side of the turning point without showing any intersection nor route. CONSTITUTION:The projection L = Dcostheta of the distance D from the current position of a vehicle to the destination of the vehicle set by means of a destination setting means in the advancing direction is calculated from the distance D and the difference theta in azimuth between the azimuth of the current advancing direction and that from the current position to the destination and, when the projection L becomes smaller than a fixed reference value L0, whether or not the destination is on the right side or left side of the advancing direction is informed to the driver of the vehicle by discriminating the sign of the angle theta7 between the advancing direction and the line connecting the current position to the destination.