Data architecture of map data, data architecture of update instruction data, map information processing apparatus, and map information providing apparatus
First Claim
1. A data architecture of map data comprising:
- link identification information identifying a plurality of original links, each of which corresponds to a part of a road constituting an actual road network; and
auxiliary link identification information used for identifying a plurality of alternative links which substitute for any of the original links in the map data, wherein the link identification information for each original link replaced by the alternative links is associated with the auxiliary link identification information for the alternative links, whereby a map data processing apparatus can recognize relationship between the original link and the alternative links.
2 Assignments
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Accused Products
Abstract
In a road data frame for displaying road maps, each node/link data record describing a link corresponding to a road part includes link identification information identifying an original link, and auxiliary link identification information used for identifying a plurality of alternative links which substitute for any of the original links in the map data. In a route planning data frame for route planning, each connection record describing the interconnection of nodes also includes corresponding link identification information identifying an original link, and corresponding auxiliary link identification information used for identifying a plurality of alternative links which substitute for any of the original links in the map data. By means of identification information of the original link and auxiliary links, it is facilitated to identify the correlation among links in the road data frame and the route planning data frame having different versions.
63 Citations
8 Claims
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1. A data architecture of map data comprising:
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link identification information identifying a plurality of original links, each of which corresponds to a part of a road constituting an actual road network; and
auxiliary link identification information used for identifying a plurality of alternative links which substitute for any of the original links in the map data, wherein the link identification information for each original link replaced by the alternative links is associated with the auxiliary link identification information for the alternative links, whereby a map data processing apparatus can recognize relationship between the original link and the alternative links. - View Dependent Claims (2, 3, 4, 8)
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5. A data architecture of map data comprising:
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a plurality of node/link data items designating a plurality of links, respectively, each of links corresponding to a part of a road constituting an actual road network, each node/link data item including;
link identification information identifying the corresponding link;
link validity information identifying whether the corresponding link is valid or invalid; and
interconnection information for indicating interconnections between the corresponding link and other links,wherein when the corresponding link is an original link replaced by a plurality of alternative links in the map data, the link validity information identifies that the corresponding link is invalid, and the interconnection information indicates that the original link is associated with the alternative links, whereby a map data processing apparatus can recognize relationship between the original link and the alternative links. - View Dependent Claims (6, 7)
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Specification