Collision avoidance alarm system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 3, 1989
Grant Date -
N/A
app pub date -
Oct 1, 1987
filing date -
Oct 1, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The following invention is a passive collision avoidance alarm system. An optical sensor (which may optionally be visable, infrared or ultraviolet) is disposed to provide a continuous raster scan of the scene within a wide angle of the direction of travel of the vehicle. This sensor output is converted into digital data and stored. A computer system compares consecutive scenes to detect identifiable objects. For such identifiable objects the computer calculates the centroid of the object and its angle, and a measure of the size or extent of the object. Detection of an object having a constant angle and a increasing measure of extent causes an alarm to be triggered.
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Family
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- Non-US Classification not provided for expired patents
Cited Art Landscape
Patent Citation Ranking
- Citation Ranking not provided for expired patents
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