검색연산자 | 기능 | 검색시 예 |
---|---|---|
() | 우선순위가 가장 높은 연산자 | 예1) (나노 (기계 | machine)) |
공백 | 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 | 예1) (나노 기계) 예2) 나노 장영실 |
| | 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 | 예1) (줄기세포 | 면역) 예2) 줄기세포 | 장영실 |
! | NOT 이후에 있는 검색어가 포함된 문서는 제외 | 예1) (황금 !백금) 예2) !image |
* | 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 | 예) semi* |
"" | 따옴표 내의 구문과 완전히 일치하는 문서만 검색 | 예) "Transform and Quantization" |
국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) | B62D-001/24 B60T-007/16 B60K-028/00 |
미국특허분류(USC) | 180/169 ; 180/197 ; 340/903 ; 342/59 |
출원번호 | US-0147312 (1993-11-05) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 445 인용 특허 : 0 |
An automobile collision avoidance system based on laser radars is disclosed for aiding in avoidance of automobile collisions. The very small beam width, very small angular resolution and the highly directional character of laser radars provide a plurality of advantages as compared with microwave radars. With two sets of laser radars this system can detect the location, the direction of movement, the speed and the size of all obstacles specifically and precisely. This system includes laser radars with transmitters and receivers, a computer, a warning devi...
A collision avoidance system for a vehicle, comprising: at least two laser radar sets being separately mounted on the vehicle, each laser radar set including at least a laser radar unit, each laser radar unit including a transmitter means for transmitting laser radar signals and a receiver means for receiving laser radar signals reflected by an obstacle from the transmitted laser radar signals and for generating first electronic signals thereof; an angle message means associated with each laser radar unit for providing second electronic signals represent...