发明名称 |
METHOD FOR DETECTING ROAD POSITION OF CAR IN MULTIFORMATION ROAD |
摘要 |
<p>The present invention provides a method for identifying a position of a vehicle on a multi-layer road, by which it is possible to judge whether the vehicle is running on an upper layer or a lower layer of the multi-layer road without using additional new devices or parts on a navigation system. In order to identify a position of a vehicle on a road when the vehicle is running on a multi-layer road, prediction can be made to some extent by determining the visible range to see GPS satellite in the sky is wide or narrow. With the purpose of processing the problem quantitatively, a position measuring ratio is defined as follows: Position measuring ratio (%) = (Traveled distance where GPS position measuring is effective) x 100/(Traveled distance). By this position measuring ratio, it is possible to identify the position of the vehicle on the road. <IMAGE></p> |
申请公布号 |
EP1063492(A1) |
申请公布日期 |
2000.12.27 |
申请号 |
EP20000900371 |
申请日期 |
2000.01.13 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
AJIMA, TAKUMI |
分类号 |
G01C21/00;G01C21/26;G01C21/28;G01S19/24;G01S19/40;G08G1/01;G08G1/0969;(IPC1-7):G01C21/26;G08G1/096 |
主分类号 |
G01C21/00 |
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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