Method and a device for recognizing the condition of a road
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United States of America Patent
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-
Nov 17, 1992
Grant Date -
N/A
app pub date -
Jun 5, 1990
filing date -
Nov 11, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for detecting the condition of the surface and adjacent edges of a road by means of electromagnetic radiation. A transmitter emits measuring beam pulses of electromagnetic radiation directed in a linear area of the road. Back scattered radiation from reflection of the measuring beam pulses by features of the road surface and adjacent areas are received and transformed into a time sequence signal. A signal processing and analysis unit analyzes the time sequence signal to identify features and surfaces of the road and their distance from the vehicle.
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