Method and device for detecting the surface character of objects in road traffic or of persons
First Claim
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1. A method for detecting a surface character of an entity in road traffic positioned in front of a vehicle, the method comprising:
- emitting signals from the vehicle, the emitted signals being transmit pulses that are reflected by the entity to produce echo pulses as reflected signals;
receiving and evaluating the reflected signals in the vehicle;
inferring, based on the signal characteristics of the echo pulses, a surface character including a surface roughness of the entity; and
inferring whether the entity is a person or an object other than a person based on the inferred surface character including the surface roughness.
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Abstract
A method for detecting the surface character of objects in road traffic or of persons, especially pedestrians, vehicles, obstacles and the like, in which signals are emitted from a vehicle that are reflected by a person or an object, and in which the reflected signals are received and evaluated in the vehicle, wherein the emitted signals are transmit pulses whose echo pulses are received, and based on the signal characteristics of the echo pulses, the surface character is inferred, and from that, it is inferred whether a person or an object is positioned in front of the vehicle.
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Citations
20 Claims
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1. A method for detecting a surface character of an entity in road traffic positioned in front of a vehicle, the method comprising:
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emitting signals from the vehicle, the emitted signals being transmit pulses that are reflected by the entity to produce echo pulses as reflected signals; receiving and evaluating the reflected signals in the vehicle; inferring, based on the signal characteristics of the echo pulses, a surface character including a surface roughness of the entity; and inferring whether the entity is a person or an object other than a person based on the inferred surface character including the surface roughness. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for determining a surface character of an entity in road traffic in front of a vehicle, comprising:
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pulse-echo sensors for emitting and receiving signals; at least one signal-analysis device for determining and evaluating signal characteristics of echo pulses reflected by the entity; and at least one control device for triggering at least one of an operating-dynamics system, an occupant protective device, and a pedestrian protective device as a function of the signal characteristics; wherein the emitted signals are transmit pulses whose echo pulses are received, and based on the signal characteristics of the echo pulses, the surface character, including a surface roughness, of the entity is inferred, and it is inferred whether the entity is a person or an object other than a person based on the inferred surface character, including the surface roughness. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification