DIFFERENTIAL MAP DATA CREATION APPARATUS, DIFFERENTIAL MAP LIST CREATION APPARATUS, DIFFERENTIAL MAP DATA CREATION METHOD, DIFFERENTIAL MAP LIST CREATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a differential map data creation apparatus creating differential map data for updating map data in accordance with difference update priorities set on need.;SOLUTION: A differential map data creation apparatus comprises: a differential-map-data extraction unit extracting after-new-old-difference-extraction map data that is a difference between an old map database and a new map database; a differential-map-data classification unit classifying the after-new-old-difference-extraction map data extracted by the differential map data extraction unit as categorized differential map data based on category information defining map data for each category; an update-unit-information creation unit creating update unit information for determining a differential-update update unit based on priority information indicating first priorities of differential update; and a differential-map-data creation unit creating differential map data on the basis of the categorized differential map data classified by the differential-map-data classification unit and the update unit information created by the update-unit-information creation unit.;COPYRIGHT: (C)2016,JPO&INPIT