Toyota Jidosha Kabushiki Kaisha

Aisin Aw Co., Ltd.

Zenrin Co., Ltd.

Toyota Mapmaster Inc.

Masahiro Tsujiko

Hironobu Sugimoto

Kazuteru Maekawa

Sadahiro Koshiba

Kenji Yano

Yuichi Ochi

Yoshikatsu Matsumoto

Motohiro Nakamura

Shoji Iwata

Kenji Shono

Koji Uchiyama

Kaname Miyazaki

Systems, methods, and programs store feature information relating to features existing on a road and on the periphery of the road, each piece of feature information being associated with a unique identification symbol, each piece of feature information including disposition information expressing a spatial disposition of each feature independently of the road network, form information expressing a form of each feature, accuracy information expressing an accuracy of the information, and acquisition timing information expressing an acquisition timing of the information. The systems, methods, and programs (1) output the feature information stored in the feature database and input map information constituting the map database, the map information being generated based on the output feature information, or (2) generate map information constituting the map database on the basis of the feature information stored in the feature database.

Map database generating systems, methods, and programs

There is provided a map information providing technology that can keep map information very fresh at all times. A map information management system has a map to be updated DB for storing map data to be updated that is used to update and maintenance, a map to be provided DB for storing map data to be provided that is distributed, an updated data DB for storing updated data for updating the map data to be provided, a map DB update means for updating the map data to be updated when the updated data for updating the map data of the map data to be updated DB is input, an updated data creation mean for creating the differential data before and after it is updated by the updated data and storing the differential data in the updated data DB as the updated data, and a data distribution means for extracting the map data to be provided or the updated data stored in the map to be provided DB when it receives a request to distribute the map data or the updated data from a destination system and distributing it to the destination system.

Map information management system and map information distribution system

Growing community of inventors

Anjo, Japan

Masahiro Tsujiko