There are provided a communication terminal, a server device, a movement guidance system, and a computer program that prevent as much as possible the occurrence of an event that after the communication terminal obtains a guided route from the server device, movement guidance based on the guided route is not provided or erroneous guidance. Specifically, a communication terminal 5 identifies update target areas which are areas whose terminal-side map information 48 included in the communication terminal 5 is an older version of map information relative to device-side map information 25 included in a server device 3, requests the server device 3 for movement guidance information 26 targeted for at least an update target area around a current location, the movement guidance information 26 being for providing movement guidance for a mobile unit, and provides movement guidance for the mobile unit using the movement guidance information 26 transmitted from the server device 3 according to the request.
COMMUNICATION TERMINAL, SERVER DEVICE, MOVEMENT GUIDANCE SYSTEM, AND COMPUTER PROGRAM
KOMMUNIKATIONSENDGERÄT, SERVERVORRICHTUNG, BEWEGUNGSFÜHRUNGSSYSTEM UND COMPUTERPROGRAMM
TERMINAL DE COMMUNICATION, DISPOSITIF SERVEUR, SYSTÈME DE GUIDAGE DE MOUVEMENT, ET PROGRAMME INFORMATIQUE
2018-12-19
Patent
Elektronische Ressource
Englisch
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