Navigation apparatus for detecting a present position of a moveable body

DETAILED DESCRIPTION The present invention is proposed in view of the above mentioned problems.
It is therefore a first object of the present invention to provide a navigation apparatus which can perform a navigation process by exactly determining any one road of a plurality of roads on which a vehicle is traveling, even when the vehicle is traveling near the locations having the altitudinal differences.
It is a second object of the present invention to provide a navigation apparatus, which can judge an inclined state in a travel direction of a vehicle in a simple cheap configuration and perform a guiding process more exactly since the judgment is reflected in the process.
The first object of the present invention can be achieved by a first navigation apparatus provided with: a vertical movement detecting device such as a CPU (Central Processing Unit) or the like for detecting a presence or absence of a movement in a vertical direction of a movable body associated with the movement of the movable body; a judging device such as a CPU for judging a position in the vertical direction of the movable body on the basis of the presence or absence of the movement in the vertical direction detected by the vertical movement detecting device; and a notifying device such as a CPU for notifying a present position of the movable body on the basis of the position in the vertical direction judged by the judging device.
According to the first navigation apparatus, the presence or absence of the movement in the vertical direction of the movable body is detected by the vertical movement detecting device.
Then, on the basis of this presence or absence of the movement in the vertical direction, the position in the vertical direction of the movable body is judged by the judging device.
Finally, on the basis of this position in the vertical direction, the present position of the movable body is notified by the notifying device.
Thus, the notification for the moving condition of the movable body can be appropriately performed