Patent ID: 6594581
Filing Date: 2003-07-15
Classification: G01C

Abstract:
A pedestrian route guidance apparatus, comprising:a database configured to store map data including road network data and landmark data; a route search unit configured to search for a route from a departure point to a destination point from the road network data stored in said database, and to divide the route into a departure area, a destination area, and an intermediate area, wherein the departure area is a route area from the departure point to a first target point, the destination area is a route area from a last target point to the destination point, and the intermediate area is a junction area excluding the departure area and the destination area from the route; a route pattern analysis unit configured to set a mask having a size several times a road width of advance direction on the junction area, to extract the road network data corresponding to the mask from said database as a route network extraction area, to analyze a road pattern of the route by referring to the road network data, and to obtain road pattern data as the analysis result; a route guidance information generation unit configured to generate route guidance information of the route using the road pattern data and the landmark data along the route; and a presentation unit configured to present the route guidance information.