DEVICE, METHOD, AND RECORDING MEDIUM FOR GEOGRAPHICAL INFORMATION DATA RETRIEVAL, DEVICE, METHOD, AND RECORDING MEDIUM FOR NODE INFORMATION EXCHANGE, AND GEOGRAPHIC INFORMATION DATA RETRIEVAL SYSTEM

摘要

PROBLEM TO BE SOLVED: To indirectly access all geographical information data retrieval device when a location of the geographical information data retrieval device at one place is known.;SOLUTION: The geographical information data retrieval system 1 is constituted by connecting geographical information data retrieval devices 10 equipped with geographical information databases 20 stored with geographical space data and a node information exchange device 40 to each other through a network 30; and each geographical information data retrieval device 10 is equipped with an input/output means 11, a node information table 12, a node information retrieval means 13, a transfer means 14, a data retrieval means 15, and a rewriting means 16 and the node information exchange device 40 is equipped with a grouping means 41, an in-group exchange means 42, and an inter-group exchange means 43.;COPYRIGHT: (C)2001,JPO