DATA UPDATE DEVICE, DATA UPDATE METHOD, DATA UPDATE PROGRAM, AND RECORDING MEDIUM

摘要

A data update device (100) updates map data which can be partially updated and is used by a mobile body. A recording unit (101) records map data. An update unit (102) updates map data recorded in a recording unit (101). A position acquisition unit (103) acquires information concerning position of the mobile body. A control unit (104) controls map data update by the update unit (102) according to the information on the position acquired by the position acquisition unit (103)