Aisin Aw Co., Ltd.

Masahiro Hyakusawa

Mitsuhiro Nimura

Hiroyoshi Masuda

Toyoji Hiyokawa

Tomofumi Shibata

Masahiro Takahashi

Tatsumi Sakamoto

Kazuyuki Hirakawa

Atsushi Yamazaki

A map updating system includes: an update processing unit for performing update processing by reading data required in the update processing from a cache area of a memory when the data are stored in the cache area and from a map database when the data are not stored in the cache area; a cache storage unit for storing the data read by the update processing unit in the cache area; a processing memory capacity determination unit for determining a processing memory capacity, which is a capacity of the memory required as an update processing area, on the basis of the content of map data to be subjected to the update processing; and a cache capacity determination unit for determining a cache capacity, which is a capacity of the memory allocated to the cache area, on the basis of the processing memory capacity.

Map updating system and map updating program using dynamic cache memory

Growing community of inventors

Sapporo, Japan

Masahiro Hyakusawa