| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a route search device capable of reducing the capacity of network data while maintaining route search efficiency in route search in a building of multi-floor structure. <P>SOLUTION: The route search device includes: a storage unit for storing map data containing standard network data representing a predetermined path network matched in a vertical direction in the path network of each floor of a building and difference network data representing a difference between the path network of each floor of the building and a path network represented by the standard network data; a point setting unit for setting a departure place and a destination on the map; and a route search unit for reading the standard network data and the difference network data on a desired floor from the storage unit, and reproducing the path network of the desired floor to search for a route from the departure place to the destination. <P>COPYRIGHT: (C)2012,JPO&INPIT |
