Method and a device for recognizing the condition of a road
First Claim
1. A device for detecting the condition of a road, including rough areas on the surface of the road and at the edge of the road and their distance from a vehicle by electromagnetic radiation, comprising:
- transmitter means for emitting measuring beam pulses of electromagnetic radiation directed to a linear area of said road;
receiver means for detecting backscattered radiation from reflection of said measuring beam pulses by features and surfaces within said area of the road, and for transforming detected backscattered radiation from each pulse into a time sequence signal;
a signal processing and analysis unit coupled to receive said time sequence signal, said signal processing an analysis unit including means for analyzing said time sequence signal to identify features and surfaces of said road and their distance from said vehicle.
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Accused Products
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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Citations
9 Claims
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1. A device for detecting the condition of a road, including rough areas on the surface of the road and at the edge of the road and their distance from a vehicle by electromagnetic radiation, comprising:
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transmitter means for emitting measuring beam pulses of electromagnetic radiation directed to a linear area of said road; receiver means for detecting backscattered radiation from reflection of said measuring beam pulses by features and surfaces within said area of the road, and for transforming detected backscattered radiation from each pulse into a time sequence signal; a signal processing and analysis unit coupled to receive said time sequence signal, said signal processing an analysis unit including means for analyzing said time sequence signal to identify features and surfaces of said road and their distance from said vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for detecting the condition of a road, including rough areas on the surface of the road and at the edge of the road, and their distance from a vehicle, by electromagnetic radiation, comprising the steps of:
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emitting measuring beam pulses of electromagnetic radiation directed to a linear area of said road; detecting backscattered radiation from reflection of said measuring beam pulses by features and surfaces within said area of the road; transforming detected backscattered radiation from each pulse into a time sequence signal; analyzing said time sequence signal to identify features and surfaces of said road, and their distance from said vehicle.
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Specification