HISTORY INFORMATION STORAGE DEVICE, ROUTE CALCULATION METHOD AND INFLUENCE RANGE DISTRIBUTION SYSTEM

摘要

To enable calculation of a route according to the latest situation.SOLUTION: A history information storage device comprises a storage unit which stores history information about a travel history of a vehicle and map data divided into a plurality of blocks, an influence range determination unit which determines a block influenced by change among the plurality of blocks as an influenced block, a history information control unit which temporarily invalidates history information about the influenced block and a navigation unit which calculates a route from a departure point to a destination in consideration of the history information and records, in the history information, a travel history of a vehicle deviating from the route.SELECTED DRAWING: Figure 1