[특허]Laser based tracking device for detecting the distance between a vehicle and a roadway marker

Laser based tracking device for detecting the distance between a vehicle and a roadway marker 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G08G-001/09
출원번호	US-0847378 (1992-03-09)
발명자 / 주소	Bachalo William D. (Sunnyvale CA)
인용정보	피인용 횟수 : 35 인용 특허 : 0

초록 ▼

A laser tracking device for the warning of vehicle weaving and steering assistance of vehicles, includes a laser generation apparatus for generating and transmitting a laser beam. A mirror is provided for sweeping the laser beam across a roadway surface. The mirror also receives a reflection of the laser beam back from a roadway marker located on the roadway surface and directs it to a receiver. A master clock is coupled to the mirror for generating a first timing signal when the laser beam starts to sweep across the roadway surface. The receiver generates a second timing signal when the reflected laser beam is incident on it. A processor is coupled to the receiver and the master clock. The processor compares the first timing signal with the second timing signal. The processor uses the results of that comparison to calculate the distance between the vehicle and the roadway marker. That information can be used to control the direction and steering of the vehicle in order to prevent weaving, unintentional lane changes as well as other problems leading to accidents and collisions.

대표청구항 ▼

A laser tracking device for determining the distance between a vehicle and a roadway marker on the surface of a roadway, comprising: a laser diode for generating and transmitting a laser beam; a rotating polygonal mirror coupled to a controllable motor, said mirror being located within an optical path of said laser beam, for sweeping said laser beam across said roadway surface, said mirror also receiving a reflection of said laser beam back from said roadway surface, and directing said reflected laser beam to a receiver means; master clock means coupled to said controllable motor for generating a first timing signal and issuing a series of timing pulses when said laser beam starts to sweep across said roadway surface; counter means coupled to said master clock means, said counter means beginning to count said timing pulses when said master clock means generates said first timing signal, said counter means continuing to count said timing pulses concurrently as said laser beam sweeps across said roadway surface; wherein said receiver means generates a second timing signal when said reflected laser beam is incident on it, and wherein said counter ceases counting upon said generation of said second timing signal; and microprocessor means coupled to said receiver means and said master clock means for analyzing the number of said timing pulses counted by said counter means between generation of said first and second timing signals so as to calculate a distance between said tracking device and said roadway marker.

이 특허를 인용한 특허 (35)

Zhu, Xiaoxun; Au, Ka Man; Germaine, Gennady; Good, Timothy A.; Schnee, Michael; Scott, Ian; Groot, John; Wilz, Sr., David M.; Rockstein, George B.; Blake, Robert E.; Dickson, LeRoy; Knowles, Carl Har, AUTOMATED METHOD OF AND SYSTEM FOR DIMENSIONING OBJECTS OVER A CONVEYOR BELT STRUCTURE BY APPLYING CONTOURING TRACING, VERTICE DETECTION, CORNER POINT DETECTION, AND CORNER POINT REDUCTION METHODS TO.
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Zhu, Xiaoxun; Au, Ka Man; Germaine, Gennady; Good, Timothy A.; Schnee, Michael; Scott, Ian; Groot, John; Wilz, Sr., David M.; Rockstein, George B.; Blake, Robert E.; Dickson, LeRoy; Knowles, Carl Har, AUTOMATED METHOD OF AND SYSTEM FOR DIMENSIONING OBJECTS TRANSPORTED THROUGH A WORK ENVIRONMENT USING CONTOUR TRACING, VERTICE DETECTION, CORNER POINT DETECTION, AND CORNER POINT REDUCTION METHODS ON .
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Swonger, Jr., Karl William, Assured safe following distance highway markings.
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Zhu,Xiaoxun; Au,Ka Man; Germaine,Gennady; Good,Timothy A.; Schnee,Michael; Scott,Ian; Groot,John; Wilz, Sr.,David M.; Rockstein,George B.; Blake,Robert E.; Dickson,LeRoy; Knowles,Carl Harry, Automated method of and system for dimensioning objects over a conveyor belt structure by applying contouring tracing, vertice detection, corner point detection, and corner point reduction methods to two-dimensional range data maps of the space above the conveyor belt captured by an amplitude modulated laser scanning beam.
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Schofield, Kenneth; Larson, Mark L.; Vadas, Keith J., Automatic vehicle exterior light control.
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Frick,Rainer, Device for distance measurement.
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Schofield, Kenneth; Larson, Mark L.; Vadas, Keith J., Driver assistance system for a vehicle.
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Wilson-Jones Russell,GB2 ; Tribe Raglan Horatio Andrew Harold,GB2 ; Appleyard Michael,GB2, Driver assistance system for a vehicle.
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Pawlicki, John A.; McMahon, Martha A.; Chinn, Steven G.; Gibson, Joel S., Driver assistance system for vehicle.
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Schofield, Kenneth; Lynam, Niall R., Driver assistance system for vehicle.
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Nguyen, Tuan Tran; Lipinski, Daniel; Spehr, Jens, Fused raised pavement marker detection for autonomous driving using lidar and camera.
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O'Meara James C., Laser lighting system.
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Sehr, Willibald, Laser-based controller for adjusting the height of a machining tool of a construction machine.
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Schanz,Holger; Kraus,Robert; Mehr,Wilfried, Method and apparatus for optically scanning a scene.
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Nonaka Kenichi,JPX ; Saitou Yoshimitsu,JPX ; Abe Masaaki,JPX ; Yokoyama Seiichi,JPX, Object recognizing device.
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Nakagawa Tetsuya,JPX, Obstacle detection apparatus for vehicles.
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Schanz, Holger, Scanning device.
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Bleiner, Thomas; Dessert-Vidalet, Bruno, Traffic safety integrated system, particularly in low visibility conditions and method of use of same.
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Bos, Brent J.; Schofield, Kenneth, Vehicle vision system.
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Schofield, Kenneth; Lynam, Niall R., Vehicular control system.
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Schofield, Kenneth; Lynam, Niall R., Vehicular control system.
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Schofield, Kenneth; Lynam, Niall R., Vehicular control system.
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Pawlicki, John A.; McMahon, Martha A.; Chinn, Steven G.; Gibson, Joel S., Vehicular control system using cameras and radar sensor.
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Pawlicki, John A.; McMahon, Martha A.; Chinn, Steven G.; Gibson, Joel S., Vehicular control system using cameras and radar sensor.
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Schofield, Kenneth; Larson, Mark L., Vehicular vision system.
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Pawlicki, John A.; McMahon, Martha A.; Chinn, Steven G.; Gibson, Joel S., Vision system for vehicle.
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Pawlicki, John A.; McMahon, Martha A.; Chinn, Steven G.; Gibson, Joel S., Vision system for vehicle.
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Schofield, Kenneth, Vision system for vehicle.
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Schofield, Kenneth, Vision system for vehicle.
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Schofield, Kenneth; Lynam, Niall R., Vision system for vehicle.
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Schofield, Kenneth; Lynam, Niall R., Vision system for vehicle.
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Schofield, Kenneth; Lynam, Niall R., Vision system for vehicle.
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Schofield, Kenneth; Lynam, Niall R., Vision system for vehicle.
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Schofield, Kenneth; Lynam, Niall R., Vision system for vehicle.
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Schofield, Kenneth; Lynam, Niall R., Vision system for vehicle.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Laser based tracking device for detecting the distance between a vehicle and a roadway marker 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (35)

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연합인증

Laser based tracking device for detecting the distance between a vehicle and a roadway marker 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (35)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

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