发明名称 |
Automotive radar detecting lane mark and frontal obstacle |
摘要 |
A radar apparatus for automotive vehicles is provided which is designed to emit laser beams to scan a forward zone for detecting moving object such as preceding vehicles and a downward zone for detecting lane marks printed on a road surface for defining a traffic lane. The downward zone is wider than the forward zone horizontally. Each zone has a minimum width required for assuring desired accuracy of radar detection of an object, thereby minimizing the number of emissions of the laser beams, resulting in an increase in lifetime of a laser diode and production of unwanted data on roadside objects having a low probability that the vehicle will collide them. The apparatus also includes a light focusing mechanism which focuses the laser beam on a given area in the downward zone to increase the power density of a return of the laser beam.
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申请公布号 |
US6317202(B1) |
申请公布日期 |
2001.11.13 |
申请号 |
US19990438398 |
申请日期 |
1999.11.12 |
申请人 |
DENSO CORPORATION |
发明人 |
HOSOKAWA TOSHIO;TERUI TAKEKAZU |
分类号 |
G08G1/09;B60W30/00;G01S7/481;G01S15/93;G01S17/42;G01S17/93;G08G1/16;(IPC1-7):G01B11/26;G01C3/08;B60T7/16 |
主分类号 |
G08G1/09 |
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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