MAP INFORMATION MANAGEMENT SYSTEM

摘要

PROBLEM TO BE SOLVED: To eliminate the useless communication of a master station and a slave station and to efficiently update the map data of the slave station to latest map data. SOLUTION: Latest map information 22 and map management information 21 for managing the version of the map information 22 are stored in the master station 2 and the map information of the slave station 1 of an old version is updated from the master station 2 and stored by the communication with the slave station 1. Thus, the slave station 1 stores the map information and the map management information for managing the version of the map information received from the master station 2 in a map information storage device 15, and by receiving the map management information 21 of the master station 2, performs comparison judgement with the version of the map management information of the slave station 1, and in the case that the version is older than the one of the master station 2, receives the map information of a new version from the master station 2 and updates it.