[특허]Optical tracking system for refueling

Smiths Aerospace LLC

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Optical tracking system for refueling

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B64D-039/00 G01B-011/14
미국특허분류(USC)	244/135.A; 356/601; 356/614
출원번호	UP-0249262 (2005-10-14)
등록번호	US-7681839 (2010-04-21)
발명자 / 주소	Mickley, Joseph G. Stitt, Raymond Michael Saggio, III, Frank Pavlich, Jane C. Wassick, Gregory J.
출원인 / 주소	Smiths Aerospace LLC
대리인 / 주소	Andes, Esq., William Scott
인용정보	피인용 횟수 : 18 인용 특허 : 51

초록
▼

An aerial refueling system including a refueling drogue assembly including a refueling drogue and a refueling hose in captive relation with the refueling drogue and a drogue positioning system. The drogue positioning system including a radiation emitter, a radiation receiver and a signal processor. Then the radiation emitter is adapted to direct radiation to a positioning area a defined distance from the radiation emitter, the radiation carrying a modulated location signal containing information corresponding to positions within the positioning area. The radiation receiver is adapted to receive at least a portion of the emitted radiation carrying the modulated signal and output a signal to the signal processor indicative of the modulation of the location signal of the received radiation. And the signal processor is adapted to process the outputted signal and identify a position within the positioning area indicative of the location in the positioning area of the received radiation.

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What is claimed is: 1. An aerial refueling system comprising: a refueling drogue assembly including a refueling drogue and a refueling hose in captive relation with the refueling drogue; and a drogue positioning system, the drogue positioning system including a radiation emitter, a radiation receiver and a signal processor; wherein the radiation emitter is adapted to direct radiation to a positioning area a defined distance from the radiation emitter, the positioning area including a plurality of positions where at least one of the radiation emitter and the radiation receiver are expected to be located, the radiation carrying a modulated location signal containing information corresponding to at least a portion of the plurality of positions within the positioning area using a predetermined coordinate system; wherein the radiation receiver is adapted to receive at least a portion of the emitted radiation carrying the modulated signal and output a signal to the signal processor indicative of the modulation of the location signal of the received radiation; and wherein the signal processor is adapted to process the outputted signal and identify the at least a portion of the plurality of positions within the positioning area indicative of the location in the positioning area of the received radiation, wherein the radiation emitted by the radiation emitter is a focused beam and the radiation emitter is adapted to scan the focused beam over the positioning area; wherein the drogue positioning system is adapted to virtually divide at least a portion of the positioning area into a virtual grid, the virtual grid including a plurality of distributed distinct sectors, the distributed distinct sectors spatially corresponding to sub-areas within the positioning area, the sub-areas being disbursed within the positioning area in a geometrically defined manner; wherein the drogue positioning system is adapted to change the modulated location signal carried on the focused beam as the focused beam is scanned over the positioning area, wherein change in the modulated location signal corresponds in a defined manner to the sub-areas such that a modulated location signal indicative of a beam being directed at a first sub-area is distinct from a modulated location signal indicative of a beam being directed at a second sub-area; and wherein the signal processor is adapted to analyze one or more outputted signals from the receiver indicative of the modulation of the location signal and identify a distinct sector corresponding to the received modulated location signal carried on the focused beam. 2. The system of claim 1, wherein the radiation emitter is adapted to emit a focused optical beam and scan the focused optical beam over the positioning area. 3. The system of claim 2, wherein the radiation emitter is adapted to emit a focused optical beam and scan the focused optical beam over the positioning area in an X-Y raster. 4. The system of claim 1, wherein the emitted radiation is a focused optical beam, wherein the modulated location signal includes a plurality of digital data blocks, the plurality of digital data blocks containing information respectively corresponding to a plurality of discrete positions within the positioning area that respectively correspond to a current location of the focused beam within the positioning area. 5. The system of claim 4, wherein the radiation emitter is adapted to emit the focused optical beam and scan the focused optical beam over the positioning area. 6. The system of claim 4, wherein the radiation receiver is adapted to receive at least a portion of the focused beam when at least that portion of the focused beam is directed at the radiation receiver, and wherein the signal outputted by the receiver is indicative of the information contained in at least one digital data block carried by the received radiation. 7. The system of claim 4, wherein the radiation receiver is adapted to receive at least a portion of the focused beam when at least that portion of focused beam is directed at the radiation receiver and determine whether a full digital data block carried by the focused beam has been received, and only if a full digital data block has been received, output the signal to the signal processor, wherein the outputted signal is indicative of the information contained in the full digital data block received. 8. The system of claim 1, wherein the signal processor identifies a sub-area at which the beam is directed based on the identification of the distinct sector corresponding to the received modulated location signal carried on the emitted radiation. 9. The system of claim 8, wherein the radiation receiver is mounted on the refueling drogue assembly, wherein the aerial refueling system includes an active control system adapted to regulate the position of the radiation receiver within the positioning area when the refueling drogue is extended from a refueling aircraft. 10. The system of claim 9, wherein the active control system is adapted to regulate the vertical and horizontal position of the drogue to maintain a substantially fixed orientation of the receiver within the positioning area. 11. The system of claim 1, wherein the signal processor is adapted to analyze a first outputted signal and a second outputted signal outputted after the first outputted signal to determine a location in the virtual grid at which the distinct sectors coincide; the first and second outputted signals being respectively indicative of the modulation of the location signal of the beam received by the receiver. 12. The system of claim 11, wherein the signal processor identifies a sub-area at which the beam is directed based on the determination of the location in the virtual grid at which the distinct sectors coincide. 13. The system of claim 11, wherein the radiation emitted by the radiation emitter is a focused optical elongated beam and the radiation emitter is adapted to scan the focused optical elongated beam over the positioning area in a dual-pass manner, wherein the first outputted signal is generated by the reception of at least a portion of the focused optical elongated beam in a first pass of the beam over the positioning area, and wherein the second outputted signal is generated by the reception of at least a portion of the focused optical elongated beam in a second pass of the beam over the positioning area. 14. The system of claim 13, wherein the focused optical elongated beam of the first pass is normal to the focused optical elongated beam of the second pass. 15. The system of claim 13, wherein the drogue positioning system is adapted to identify the location of the receiver within the positioning area based on the coincidence of the first optical elongated beam and the second optical elongated beam. 16. The system of claim 1, wherein the aerial refueling system includes an active control system adapted to regulate the position of the refueling drogue assembly with respect to a refueling aircraft when the refueling drogue is extended from the refueling aircraft. 17. The system of claim 16, wherein the active control system is adapted to regulate a position of the radiation receiver so that the position of the radiation receiver is substantially constant within the positioning area. 18. The system of claim 1, wherein the radiation emitter includes: a single line optical beam emitter; a prism; and a rotatable mirror assembly; wherein the radiation emitter is adapted to rotate the rotatable mirror assembly so that a single line optical beam emitted by the single line optical beam emitter is deflected by the mirror to project the emitted single line optical beam in a first orientation; and wherein the radiation emitter is adapted to rotate the rotatable mirror assembly so that the single line optical beam emitted by the single line optical beam emitter passes through the prism to project the emitted single line optical beam in a second orientation different from the first orientation. 19. An aerial refueling system comprising: a refueling drogue assembly including a refueling drogue and a refueling hose in captive relation with the refueling drogue; and a drogue positioning system, the drogue positioning system including a radiation emitter, a radiation receiver, and a signal processor; wherein the radiation emitter is adapted to direct a beam of emitted radiation to an area away from the radiation emitter, the radiation including discernable properties that vary in a corresponding manner with varying orientation of the beam of radiation with respect to the radiation emitter; wherein the radiation receiver is adapted to receive at least a portion of the emitted radiation and output a signal to the signal processor indicative of one or more of the discernable properties of the received radiation; wherein the processor is adapted to process the outputted signal and identify a first virtual orientation indicative of an orientation of the receiver relative to the radiation emitter when at least a portion of the radiation was received by the receiver, wherein the radiation emitted by the radiation emitter is a focused beam and the radiation emitter is adapted to scan the focused beam over the area; wherein the drogue positioning system is adapted to virtually divide at least a portion of the various possible orientations of the beam relative to the radiation emitter into a beam zone, the beam zone including a plurality of distributed distinct vectors, the distributed vectors spatially corresponding to actual orientations of the beam with respect to the radiation emitter, the actual orientations being disbursed within the beam zone in a geometrically defined manner; wherein the radiation emitter is adapted to change a modulated signal carried on the focused beam as the focused beam is scanned over the area to obtain different modulated signals, the different modulated signals corresponding in a defined manner to the actual orientations such that a modulated signal indicative of a beam being directed along a first orientation is distinct from a modulated signal indicative of a beam being directed along a second orientation; and wherein the signal processor is adapted to analyze the outputted signal from the receiver indicative of the modulation of the signal and identify the distinct vector corresponding to the received modulated signal carried on the emitted radiation. 20. The system of claim 19, wherein the radiation emitter is adapted to emit a focused optical beam modulated with digital data blocks, the modulated digital data blocks respectively indicative of discrete orientations respectively corresponding to orientations of the beam relative to the radiation emitter. 21. The system of claim 20, wherein at least some of the varied discernable properties are respectively indicative of discrete orientations respectively corresponding to orientations of the beam relative to the radiation emitter in a first reference frame, and wherein at least some of the varied discernable properties are respectively indicative of discrete orientations respectively corresponding to orientations of the beam relative to the radiation emitter in a second reference frame. 22. The system of claim 20, wherein the radiation receiver is adapted to receive the focused beam carrying the digital data blocks when the focused beam is directed at the radiation receiver and output the signal to the signal processor, wherein the outputted signal is indicative of the information contained in a digital data block carried on the received beam, and wherein the processor is adapted to analyze the outputted signal from the receiver indicative of the information contained in the received digital data block and identify the orientation of the beam relative to the radiation emitter based on the information contained in the received digital data block to identify the first virtual orientation. 23. The system of claim 19, wherein the signal processor is adapted to identify the orientation of the receiver relative to the radiation emitter based on the identified distinct vector. 24. The system of claim 19, wherein the signal processor determines at least one of (i) the distinct vector along which the beam is directed based on the identification of the distinct vector corresponding to the received modulated signal carried on the emitted radiation and (ii) the orientation along which the beam is directed based on the identification of the distinct vector corresponding to the received modulated signal carried on the emitted radiation. 25. The system of claim 19, wherein the aerial refueling system includes an active control system adapted to regulate the position of the refueling drogue with respect to a refueling aircraft when the refueling drogue is extended from the refueling aircraft. 26. The system of claim 25, wherein the radiation receiver is mounted on the refueling drogue assembly, wherein the active control system is adapted to regulate the position of the radiation receiver when the refueling drogue is extended from a refueling aircraft. 27. The system of claim 25, wherein the active control system is adapted to regulate the vertical and horizontal position of the drogue to maintain a substantially fixed orientation of the receiver with respect to the radiation emitter.

이 특허에 인용된 특허 (51)

이 특허를 인용한 특허 피인용횟수: 18

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특허 상세정보

Optical tracking system for refueling

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이 특허에 인용된 특허 (51)

이 특허를 인용한 특허 피인용횟수: 18

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Optical tracking system for refueling

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이 특허에 인용된 특허 (51)

이 특허를 인용한 특허 피인용횟수: 18

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