Patent ID: 8781501
Filing Date: 2014-07-15
Classification: G06Q,H04L,H04W

Abstract:
1. An information sharing system in which a plurality of client terminals and a management server are communicably connected to each other via an information communication line, wherein each of the client terminals comprises: the management server comprises: each of the client terminals further comprises: display scale information on the scale of the map information determined by the display scale determiner and display range information on the display range of the map information determined by the display center determiner are transmitted by the client transmitter and are received by the server receiver, the map reader reads the map information in a predetermined range corresponding to the display range information received by the server receiver from the map database, and the user information reader reads, from the user database, the user information for which the user position information is contained in the predetermined range of the map information corresponding to the display range information and the scale condition information corresponds to the display scale information, on the basis of the predetermined range of the map information corresponding to the display range information read by the map reader and the display scale information received by the server receiver.