Map update data supplying apparatus, version table, map data updating system, and map update data supplying method
First Claim
1. A map update data supplying apparatus supplies update data files used for updating target map data, the map update data supplying apparatus comprising:
- an update-purpose map database stores a plurality of update versions of update-purpose map data, each update version of update-purpose map data being divided into a plurality of sections;
a version table stores information related to guaranty versions in correspondence with section groups, each of the section groups being a set made up of a different one of the sections in the update-purpose map data and another section that is positioned adjacent thereto, and each of the guaranty versions being an oldest update version that is able to guarantee integrity between the sections that constitute a corresponding one of the section groups; and
a controller configured to;
extract update requiring sections with respect to an update requesting section that is one of sections request requesting that the target map data be updated;
obtain the information related to the guaranty versions respectively corresponding to the extracted update requiring sections by referring to the version table, the update requiring sections each being one of the sections that needs to be updated in order to guarantee integrity between the sections that are positioned adjacent to each other after the update requesting section has been updated; and
generate, based on the update-purpose map database, one of the update data files regarding the update requesting section as well as other ones of the update data files regarding the update requiring sections and having the update versions indicated as the guaranty versions.
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Accused Products
Abstract
Map updating systems, methods, and programs that extract update requiring sections with respect to an update requesting section that is one of the sections being a target of an update request requesting that the target map data should be updated, obtain the information related to the guaranty versions respectively corresponding to the extracted update requiring sections by referring to the version table, the update requiring sections each being one of the sections that needs to be updated in order to guarantee integrity between the sections that are positioned adjacent to each other after the update requesting section has been updated, and generate, based on the update-purpose map database, one of the update data files regarding the update requesting section as well as other ones of the update data files regarding the update requiring sections and having the update versions indicated as the guaranty versions.
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Citations
10 Claims
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1. A map update data supplying apparatus supplies update data files used for updating target map data, the map update data supplying apparatus comprising:
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an update-purpose map database stores a plurality of update versions of update-purpose map data, each update version of update-purpose map data being divided into a plurality of sections; a version table stores information related to guaranty versions in correspondence with section groups, each of the section groups being a set made up of a different one of the sections in the update-purpose map data and another section that is positioned adjacent thereto, and each of the guaranty versions being an oldest update version that is able to guarantee integrity between the sections that constitute a corresponding one of the section groups; and a controller configured to; extract update requiring sections with respect to an update requesting section that is one of sections request requesting that the target map data be updated; obtain the information related to the guaranty versions respectively corresponding to the extracted update requiring sections by referring to the version table, the update requiring sections each being one of the sections that needs to be updated in order to guarantee integrity between the sections that are positioned adjacent to each other after the update requesting section has been updated; and generate, based on the update-purpose map database, one of the update data files regarding the update requesting section as well as other ones of the update data files regarding the update requiring sections and having the update versions indicated as the guaranty versions. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A map update data supplying method for supplying update data files used for updating target map data, comprising:
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storing in an update-purpose map database that stores a plurality of update versions of update-purpose map data, each update version of update-purpose map data being divided into a plurality of sections, determining guaranty versions in correspondence with section groups, each of the section groups being a set made up of a different one of the sections in the update-purpose map data and another section that is positioned adjacent thereto, and each of the guaranty versions being an oldest update version that is able to guarantee integrity between the sections that constitute a corresponding one of the section groups extracting update requiring sections with respect to an update requesting section that is one of sections request requesting that the target map data be updated; obtaining information related to guaranty versions respectively corresponding to the extracted update requiring sections, the update requiring sections each being one of the sections that needs to be updated in order to guarantee integrity between the sections that are positioned adjacent to each other after the update requesting section has been updated; generating, based on the update-purpose map database, one of the update data files regarding the update requesting section as well as other ones of the update data files regarding the update requiring sections extracted at the updated section information obtaining step and having the update versions indicated as the guaranty versions; and supplying the generated update data files. - View Dependent Claims (9, 10)
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Specification