发明名称 |
Navigation system and route search method |
摘要 |
A navigation system 100 includes: map data 120 expressing a road map which include zonal network data indicating connections among a plurality of parcels; a minimum cost route calculating means for calculating a minimum cost route achieving a least sum of parcel costs corresponding to parcels present over a range extending from an origin parcel to a destination parcel by referencing the map data and using the zonal network data; an alternative route calculating means for calculating an alternative route by adjusting a parcel cost corresponding to a partial parcel which is part of a first parcel group constituting the minimum cost route; and a route search means 150 for searching for a route extending from the origin to the destination included in the first parcel group and for searching for a route extending from the origin to the destination included in a second parcel group constituting the alternative route. |
申请公布号 |
EP2623932(B1) |
申请公布日期 |
2016.11.23 |
申请号 |
EP20130153586 |
申请日期 |
2013.02.01 |
申请人 |
CLARION CO., LTD. |
发明人 |
HIRUTA, TOMOAKI;OKUDE, MARIKO;AMAYA, SHINICHI;KUMAGAI, MASATOSHI |
分类号 |
G01C21/32;G01C21/34 |
主分类号 |
G01C21/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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