Toyota Jidosha Kabushiki Kaisha

Aisin Aw Co., Ltd.

Aisin Corporation

Hiroaki Hirano

Daisuke Tanizaki

Shingo Aoyama

Kazunori Watanabe

Motohiro Nakamura

Kazuteru Maekawa

Katsuya Masuda

Takeshi Hashimoto

There are provided a communication terminal, a server device, a movement guidance system, and a computer program that can provide movement guidance based on a new version of map information soon after starting up the communication terminal. Specifically, a communication terminalis configured to identify, after its startup, update target areas which are areas whose terminal-side map informationincluded in the communication terminalis an older version of map information than device-side map informationincluded in a server device; request the server devicefor movement guidance informationtargeted for at least update target areas around a current location, the movement guidance informationbeing used to provide movement guidance for a mobile unit; and provide movement guidance for the mobile unit using movement guidance informationtransmitted from the server devicein response to the request.

Communication terminal, server device, movement guidance system, and computer program

A communication terminal is connected to a server and provides movement guidance for a mobile unit based on guidance information delivered from the server. The terminal requests the server for update information for updating area identification information that identifies a section corresponding to an update target area and a section not corresponding to the update target area on a section-by-section basis. The update target area is an area whose terminal-side map information included in the communication terminal is an older version. The terminal updates the area identification information based on the update information transmitted from the server, requests the server for guidance information for providing movement guidance for the mobile unit based on the updated area identification information, and provides the movement guidance for the mobile unit based on the guidance information delivered from the server.

Movement guidance devices and programs provide movement guidance for a mobile unit using guidance information for providing movement guidance for the mobile unit. The guidance information is delivered from a server device. The devices and programs store the guidance information delivered from the server device in a memory. The stored guidance information is area-section-by-area-section guidance information. The devices and programs set a remaining priority for the stored guidance information on a per area section basis of map information and delete, from the memory, guidance information for an area section with a low remaining priority on a priority basis rather than guidance information for an area section with a high remaining priority among the stored guidance information.

Movement guidance device and computer program

Growing community of inventors

Anjo, Japan

Hiroaki Hirano