Map information processing apparatus
An apparatus includes a map information storage section ( 16 ) that stores map information on an area by area basis formed in meshes; a positioning section ( 15 ) for measuring its own present location; a new road detecting section ( 19 ) for deciding that a new road is detected when the present location is determined to be on a road not included in the map information; a new road registration decision section ( 20 ) for deciding that the new road is registerable to the map information stored in the map information storage section when the road density in the area including the new road is equal to or less than a predetermined value; and a new road registration section ( 21 ) for registering the new road to the map information stored in the map information storage section, when the new road is determined to be registerable.
1. A map information processing apparatus comprising:
a map information storage section for storing map information on an area by area basis formed in meshes;
a positioning section for measuring its own present location;
a new road detecting section for deciding that a new road is detected when the present location measured by said positioning section is on a road not included in the map information stored in said map information storage section;
a new road registration decision section for deciding that the new road is additionally registrable to the map information stored in said map information storage section when road density in an area including the new road detected by said new road detecting section is equal to or less than a predetermined value; and
a new road registration section for making additional registration of the new road, as to which said new road registration decision section makes an additionally registrable decision, to the map information stored in said map information storage section.
2. The map information processing apparatus according to claim 1 , wherein said new road registration decision section employs, as the road density in the area including the new road, map information size representing a map information volume of the area.
3. The map information processing apparatus according to claim 1 , wherein said new road registration decision section employs, as the road density in the area including the new road, a number of roads contained in the map information about the area.
4. The map information processing apparatus according to claim 1 , wherein said new road registration decision section employs, as the road density in the area including the new road, a total distance of roads contained in the map information about the area.
5. The map information processing apparatus according to claim 1 , further comprising a registration decision result presentation section for making a presentation of a decision result and decision reason made by said new road registration decision section.
6. The map information processing apparatus according to claim 5 , further comprising:
an input receiving section for receiving an input from an input unit; and
a registration decision result confirmation section for confirming the decision result and decision reason presented by said registration decision result presentation section according to a content received by said input receiving section,
wherein said new road registration section decides that the new road is additionally registrable to the map information stored in said map information storage section when said registration decision result confirmation section confirms that the new road should be registered.