发明名称 |
TRAFFIC INFORMATION CREATION METHOD, TRAFFIC INFORMATION CREATION DEVICE, AND NAVIGATION SYSTEM |
摘要 |
Disclosed is a traffic information generation method for generating traffic information for each link, the method including a vehicle speed detection step of detecting a vehicle speed at predetermined distance intervals or at predetermined time intervals using a vehicle speed sensor; and a traffic jam degree detection step of referring to a specified speed and a specified distance prescribed in association with a traffic jam degree representing a level of a traffic jam and a connection determination distance prescribed in accordance with a road type to detect the traffic jam degree corresponding to the vehicle speed. When a link length falls within a predetermined range, information on the traffic jam degree corresponding to a fastest vehicle speed within a prescribed starting point distance from a beginning of the link is allocated to the link. |
申请公布号 |
EP2180456(A1) |
申请公布日期 |
2010.04.28 |
申请号 |
EP20080827812 |
申请日期 |
2008.08.22 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA;AISIN AW CO., LTD. |
发明人 |
HAYASHIDA, TERUHIDE;ZAITSU, TOMOYUKI;YOSHIKAWA, KAZUTAKA;NAGASE, KENJI;ISHIKAWA, HIROKI |
分类号 |
G08G1/00;G01C21/26;G08G1/01;G08G1/0969;G08G1/13 |
主分类号 |
G08G1/00 |
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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