Method and device for detection of surroundings
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0451992
(2008-06-03)
|
등록번호 |
US-8363511
(2013-01-29)
|
우선권정보 |
DE-10 2007 029 959 (2007-06-28) |
국제출원번호 |
PCT/EP2008/056822
(2008-06-03)
|
§371/§102 date |
20100329
(20100329)
|
국제공개번호 |
WO2009/000613
(2008-12-31)
|
발명자
/ 주소 |
- Frank, Michael
- Schmid, Dirk
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
3 |
초록
▼
In a method and a device for detecting the surroundings, carrier waves in the form of transmission pulses are transmitted by at least one transducer, and reflections of the pulses are detected by the pulse-echo method. In this manner, the successive transmission pulses of one transducer or various t
In a method and a device for detecting the surroundings, carrier waves in the form of transmission pulses are transmitted by at least one transducer, and reflections of the pulses are detected by the pulse-echo method. In this manner, the successive transmission pulses of one transducer or various transducers operated at the same time are differentiable by individual signal modulation.
대표청구항
▼
1. A method for detection of surroundings by using carrier waves transmitted by at least one transducer and detecting reflections of the transmitted carrier waves by a pulse-echo technique, comprising: transmitting a pulse of a first type by a first transducer using a carrier wave for a pulse length
1. A method for detection of surroundings by using carrier waves transmitted by at least one transducer and detecting reflections of the transmitted carrier waves by a pulse-echo technique, comprising: transmitting a pulse of a first type by a first transducer using a carrier wave for a pulse length;transmitting a pulse of a second type by one of the first transducer or another transducer, wherein the pulse of the first type differs from the pulse of the second type in modulations of the respective carrier waves; anddifferentiating a reflection of the pulse of the first type from a reflection of the pulse of the second type on the basis of the different modulations. 2. The method as recited in claim 1, wherein the first transducer transmits the pulses of the first and second types. 3. The method as recited in claim 2, wherein the reflection of a pulse is detected respectively by the same transducer which transmitted the pulse. 4. The method as recited in claim 3, wherein the reflection of a pulse is additionally detected by at least one neighboring transducer. 5. The method as recited in claim 1, wherein the pulses of the first and second types are transmitted by different transducers. 6. The method as recited in claim 1, wherein the modulation is one of analog amplitude modulation or digital amplitude modulation. 7. The method as recited in claim 1, wherein the modulation is one of analog angle modulation or digital angle modulation. 8. The method as recited in claim 7, wherein the modulation uses Manchester coding. 9. The method as recited in claim 1, wherein the modulation is digital modulation in the form of a coding. 10. The method as recited in claim 9, wherein the digital modulation uses Hamming coding. 11. The method as recited in claim 1, wherein the pulses of the first and second types additionally differ from one another in using different carrier waves. 12. The method as recited in claim 1, wherein ultrasonic waves are used as the carrier waves. 13. A method for detection of surroundings, comprising: transmitting a first pulse of a first type;transmitting a second pulse of the first type after at least a predefined measurement interval following the transmitting of the first pulse, wherein arrival of a reflection of the first pulse at a transducer is to be expected; andtransmitting, during the predefined measurement interval, a pulse of a second type differing from the pulses of the first type in modulation. 14. The method as recited in claim 13, further comprising: transmitting, before the predetermined measurement interval has elapsed, at least one pulse of a third type differing from the pulses of the first type and the second type in modulation. 15. The method as recited in claim 14, wherein at least three ultrasonic transducers are used in parallel. 16. A device for detection of surroundings, comprising: at least one ultrasonic transducer configured to transmit pulses;a central unit configured to allocate different modulations to at least one of different transmission times and different transducers;at least one ultrasonic transducer configured to detect reflections of transmitted pulses; andan evaluation unit configured to analyze reflection times for the transmitted pulses, taking into account at least one of different modulations, different transducers and different times of transmission of the respective pulses.
이 특허에 인용된 특허 (3)
-
Hoenes Frank,DEX, Apparatus for distance measurement by means of ultrasound.
-
Kosakowski Alex S. (Tby SEX) Lundqvist Mats A. (Tby SEX), Arrangement for holding an instrument in alignment with a moving reflector.
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Guigné, Jacques Yves, Seabed sonar matrix system.
이 특허를 인용한 특허 (4)
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Retterath, James E., Methods and apparatus for an active pulsed 4D camera for image acquisition and analysis.
-
Retterath, Jamie E.; Laumeyer, Robert A., Methods and apparatus for array based LiDAR systems with reduced interference.
-
Retterath, James E.; Laumeyer, Robert A., Methods and apparatus for increased precision and improved range in a multiple detector LiDAR array.
-
Retterath, James E.; Laumeyer, Robert A., Methods and apparatus for object detection and identification in a multiple detector lidar array.
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