[특허]System and methods of detecting an intruding object in a relative navigation system

System and methods of detecting an intruding object in a relative navigation system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G05D-001/03 G01B-011/00 G01C-021/00
출원번호	US-0633231 (2015-02-27)
등록번호	US-9435635 (2016-09-06)
발명자 / 주소	Feldmann, Michael Steven Saggio, III, Frank Paasche, Timothy John Turner, Mark Lawrence Ingersoll, John Andrew
출원인 / 주소	GE AVIATION SYSTEMS LLC
대리인 / 주소	GE Global Patent Operation
인용정보	피인용 횟수 : 0 인용 특허 : 53

초록 ▼

A relative navigation system and methods of intrusion detection for such a relative navigation system where the method includes repeatedly projecting from a grid generator a set of lines defining a grid into three dimensional space to define a field bounded by the grid and encoded with grid data con

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1. A method of intrusion detection for a relative navigation system, the method comprising: repeatedly projecting, from a grid generator, a set of lines defining a grid in three dimensional space to define a field bounded by the projected grid and encoded with grid data configured to identify predetermined points on the grid; anddetermining a presence of an intruding object within the field. 2. The method of claim 1 wherein determining the presence of the intruding object includes detecting retro-reflected light or backscattered light reflected from the intruding object. 3. The method of claim 2 wherein determining the presence of the intruding object further includes forming a point cloud image from the detected light. 4. The method of claim 3 wherein the point cloud image is processed and the intruding object is identified. 5. The method of claim 1 wherein determining the presence of the intruding object includes detecting a multi-path reflection of at least a portion of the projected grid deflecting off the intruding object, by a detector module that is an intended receiver of the grid. 6. The method of claim 1 wherein determining the presence of the intruding object includes detecting that a portion of the generated grid is blocked or detecting a reduction in light intensity from the grid by a detector module that is an intended receiver of the grid. 7. The method of claim 1, further comprising projecting light, from a secondary light source, into the field and determining the presence of the intruding object based upon a reflection of the light. 8. The method of claim 1 wherein the projecting light from the secondary light source occurs between projections of the grid from the grid generator. 9. The method of claim 1 wherein determining the presence of the intruding object further includes determining an azimuth, elevation, or range of the intruding object from the grid generator. 10. The method of claim 1, further comprising classifying the intruding object as an obstacle to be avoided or a known object that provides a marker. 11. A method of detecting an intruding object, the method comprising: repeatedly projecting, from a grid generator located on a transmitting object, a set of lines defining a grid and encoded with grid data configured to identify predetermined points on the grid;receiving at least a portion of the projected grid on a detector module located on the receiving object; anddetermining a presence of an intruding object located within the grid and between the transmitting and receiving objects based on at least one characteristic of the projected grid. 12. The method of claim 11 wherein determining the presence of the intruding object includes detecting that a portion of the grid has been blocked by the intruding object. 13. A relative navigation system, comprising: a grid generator projecting into three dimensional space a relative navigation grid to define a field; anda detector module for detecting light and configured to output a signal related to the detected light; anda processor operably coupled to the detector module and configured to receive the signal and determine when the signal related to the detected light is indicative of the presence of an intruding object. 14. The system of claim 13 wherein the detector module is located near the grid generator. 15. The system of claim 14 wherein the detector module detects retro-reflected light or backscattered light reflected from the intruding object. 16. The system of claim 13 wherein the processor receives a signal related to the detected light and forms a point cloud image therefrom. 17. The system of claim 13 wherein the detector module is operably coupled to a receiving object that is an intended receiver of the grid and the detector module is configured to detect a multi-path reflection or a loss of light from the grid. 18. The system of claim 13, further comprising a secondary light source and wherein the detector module determines the presence of the intruding object based on a projection of the secondary light source. 19. The system of claim 18 wherein the secondary light source includes an unscanned laser dot, a scanned laser dot, or a flash laser. 20. The system of claim 13 wherein the processor is configured to determine an azimuth, elevation, or range of the intruding object from the grid generator.

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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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System and methods of detecting an intruding object in a relative navigation system 원문보기

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System and methods of detecting an intruding object in a relative navigation system 원문보기

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