Method and device for determining light conditions in front of a moving object, in particular a motor vehicle
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United States of America Patent
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Jan 13, 2004
Grant Date -
N/A
app pub date -
Jun 14, 2000
filing date -
Oct 2, 1997
priority date (Note) -
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Abstract
Method for determining the lighting conditions in front of a moving object, in particular in front of a motor vehicle. The arrangement includes a sensor unit which scans the area in front of the vehicle in the direction of vehicle travel as well as an evaluation unit which measures both the general lighting conditions and the lighting conditions in front of the vehicle in the direction of vehicle travel based on the values supplied by the sensor unit. The brightness measurement is carried out with a two-dimensional image sensor, and one or more information values relating to the lighting conditions, for example before entering a tunnel, is generated with the help of a sectoral and/or global evaluation of the brightness values measured by the image sensor in the respective sectors used on a traffic lane between the edges of the traffic lane.
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