Patent ID: 6304821
Filing Date: 2001-10-16
Classification: G01C,G08G

Abstract:
A navigation device which comprises:a position detection means which detects a present position of a moving body;a setting means which sets a destination;an information acquisition means which acquires obstacle time information relating to an obstacle on the route, said obstacle temporarily denying passage of said moving body on said route;a route searching means which searches for a route, which can be negotiated in a minimum travel time from said present position of said moving body detected by said position detection means to said destination set by said setting means, by reference to said obstacle time information acquired from said information acquisition means; andan indication means which indicates a recommended route searched for by said route searching means,wherein said route searching means includes a waiting time, said waiting time being the period from an expected arrival time at an obstacle to a time when the obstacle will allow passage, in said minimum travel time from said present position to said destination when the expected arrival time of a moving body at said obstacle is in a timeframe in which the passage of the moving body will be temporarily denied.