[특허]Method and apparatus for guiding a driverless vehicle using a sensor tracking a cable emitting an electromagnetic field

Method and apparatus for guiding a driverless vehicle using a sensor tracking a cable emitting an electromagnetic field 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B62D-001/00
출원번호	US-0106427 (1993-08-13)
발명자 / 주소	Alofs Cornell W. (Petoskey MI) Drenth Ronald R. (Petoskey MI)
출원인 / 주소	Control Engineering Company (Harbor Springs MI 02)
인용정보	피인용 횟수 : 108 인용 특허 : 0

초록 ▼

A method and apparatus for guiding a driverless vehicle along a path defined by a guide cable carrying a current in a horizontal road surface includes mounting a first coil, having a major coil axis, at +45 degrees relative to the horizontal on said vehicle, mounting a second coil, having a major coil axis, at -45 degrees relative to the horizontal on said vehicle such that the axes of said first and second coils intersect, sensing both the radial and circular field vectors of the electromagnetic field with each coil, comparing the magnitude of the radial vector with the magnitude of the circular vector for each coil whereby the lateral position of the intersection point of the axes of the coils is determined relative to the guide cable to indicate the lateral displacement of the vehicle relative to said path, and using the displacement information in the vehicle steering system.

대표청구항 ▼

An apparatus for guiding a driverless vehicle along a path defined by a guide cable disposed in a horizontal road surface, said guide cable carrying a current thereby generating an electromagnetic field in the space surrounding the guide cable, said apparatus comprising: sensor means for sensing the direction and magnitude of the electromagnetic field; said sensor means including first and second detecting coils mounted in an X-coil configuration on said vehicle in spaced longitudinal alignment such that major axes of said coils intersect at a point centrally of the coils as viewed in a longitudinal direction of travel of said vehicle, and said major axes are oriented generally at ±45 degrees relative to said road surface; each detecting coil sensing both the radial and circular field vectors of said magnetic field; and comparing means in communication with said first and second detecting coils for comparing the magnitude of the radial vector with the magnitude of the circular vector whereby the lateral position of said sensor means relative to said guide cable is determined.

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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

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연합인증

Method and apparatus for guiding a driverless vehicle using a sensor tracking a cable emitting an electromagnetic field 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (108)

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연합인증

Method and apparatus for guiding a driverless vehicle using a sensor tracking a cable emitting an electromagnetic field 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (108)

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