[특허]Process and device for constructing a synthetic image of the environment of an aircraft and presenting it on a screen of said aircraft

Airbus France

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Process and device for constructing a synthetic image of the environment of an aircraft and presenting it on a screen of said aircraft

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B64C-023/00 G01C-001/00
미국특허분류(USC)	701/003; 701/120; 701/207; 340/945; 244/158.1
출원번호	US-0788270 (2004-03-01)
등록번호	US-7280896 (2007-10-09)
우선권정보	FR-03 02861(2003-03-07)
발명자 / 주소	Morizet,Benoit Lecomte,Pierre Wanner,Jean Claude Wanner,Nicole Lhote,S?bastien Morere,Patrick Amade,Vincent
출원인 / 주소	Airbus France
대리인 / 주소	Stevens, Davis, Miller & Mosher, LLP
인용정보	피인용 횟수 : 11 인용 특허 : 1

초록
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A device for constructing a synthetic image of an aircraft environment may include information sources having information relating to the aircraft and to its environment. An information processor constructs a synthetic image of the environment of the aircraft on the basis of information emanating from the information sources. A display presents, on at least one part of a display screen, a synthetic image, which is constructed with the aid of a conical projection onto a plane of projection that is orthogonal to a line of aim that forms angles of lateral s...

대표
청구항
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The invention claimed is: 1. A process for constructing a synthetic image of the environment of an aircraft and presenting it to at least one pilot of said aircraft, comprising: a) passing a first straight line through a location of the aircraft and forming a first angle of lateral separation α and a first angle of vertical separation β with the course of the aircraft is determined; b) determining a first point, said point being situated on said first straight line to the rear of the aircraft at a distance such that a vertical projection of this first point onto a horizontal plane passing through the location of the aircraft, is situated at a predetermined distance L1 from said location of the aircraft; c) determining a line of aim passing through said first point and forming a second angle of lateral separation va and a second angle of vertical separation vb with a second straight line passing through said first point and parallel to said course of the aircraft; d) defining a plane of projection which is orthogonal to said line of aim; e) constructing an image of at least a part of the environment at least in front of the aircraft, with the aid of a conical projection onto said plane of projection while taking account of said first point as reference point of the projection; f) delimiting said image laterally by two vertical straight lines respectively cutting a horizon line of the image at second and third points which are such that, on the one hand, the angle between the line of aim and a third straight line passing through said first and second points corresponds to a predetermined angle and, on the other hand, the angle between the line of aim and a fourth straight line passing through said first and third points corresponds to a predetermined angle; g) adapting the scale of the image thus delimited so as to match the straight line segment which is formed by said second and third points and which defines the width of the image, to the width of a display screen for presenting said image, and delimiting this image vertically as a function of the height of said display screen; and h) presenting the image thus constructed representing a synthetic image on said display screen. 2. The process as claimed in claim 1, wherein said first angle of lateral separation α lies between 6? and 15?. 3. The process as claimed in claim 1, wherein said first angle of vertical separation β lies between 3? and 10?. 4. The process as claimed in claim 1, wherein said predetermined distance L1 lies between 3 and 20 kilometers. 5. The process as claimed in claim 1, wherein said second angle of lateral separation va is less than or equal to said first angle of lateral separation α. 6. The process as claimed in claim 1, wherein said second angle of vertical separation vb is less than or equal to said first angle of vertical separation β. 7. The process as claimed in claim 1, wherein said display screen is furnished with a heading scale and said angles between, on the one hand, the line of aim and, on the other hand, said third and fourth straight lines are such that the angular discrepancy on the heading scale between said second and third points lies between 40? and 140?. 8. The process as claimed in claim 1, wherein in step g), the image is delimited vertically in such a way that the horizon line of said image is situated in the upper third of said display screen. 9. The process as claimed in claim 1, wherein in step e), only an image of the environment which is situated up to a predetermined distance in front of the aircraft is constructed. 10. The process as claimed in claim 1, wherein the image constructed in step e) comprises at least the following elements: a first symbol representing the aircraft and indicating its location; a representation illustrating the terrain; a vertical reference stroke between said symbol of the aircraft and its vertical projection on said terrain; and a first plot representing the future trajectory of the aircraft. 11. The process as claimed in claim 10, wherein said first symbol representing the aircraft is representative of the attitudes of the aircraft in roll, pitch and yaw. 12. The process as claimed in claim 10, wherein the image constructed in step e) furthermore comprises a second plot representing the vertical projection onto said terrain of the future trajectory of the aircraft. 13. The process as claimed in claim 10, wherein the image constructed in step e) furthermore comprises a plurality of vertical strokes between points situated on said first plot representing the future trajectory of the aircraft and the corresponding vertical projections of these points onto said terrain. 14. The process as claimed in claim 13, wherein at least one of said vertical strokes comprises a safety altitude indication. 15. The process as claimed in claim 10, wherein the image constructed in step e) furthermore comprises a second symbol situated at the intersection of said vertical reference stroke and said representation illustrating the terrain. 16. The process as claimed in claim 10, wherein said vertical reference stroke comprises a scale. 17. The process as claimed in claim 10, wherein said vertical reference stroke comprises a safety altitude indication. 18. The process as claimed in claim 10, wherein the image constructed in step e) furthermore comprises a heading scale represented above the horizon line. 19. The process as claimed in claim 10, wherein the image constructed in step e) furthermore comprises a flight plan. 20. The process as claimed in claim 10, wherein the image constructed in step e) furthermore comprises supplementary information. 21. The process as claimed in claim 10, wherein said representation illustrating the terrain is colored as a function of the discrepancy between the altitude of the aircraft and the altitude of said terrain. 22. The process as claimed in claim 10, wherein the image constructed in step e) furthermore comprises a grid which is associated with the representation of the terrain and which corresponds to the vertical projection of the edges of the upper ends of elementary cubes onto a surface forming said representation. 23. The process as claimed in claim 10, wherein any risk of collision of the aircraft with the terrain is detected by calculating the distance between the future trajectory of the aircraft and said terrain, and a first alarm indication is presented on said image when such a risk of collision is detected. 24. The process as claimed in claim 10, wherein any risk of intersection of a flight plan of the aircraft with the terrain is detected by calculating the distance between a trajectory corresponding to this flight plan of the aircraft and said terrain, and a second alarm indication is presented on said image when such a risk of intersection is detected. 25. The process as claimed in claim 10, wherein a rotation of the line of aim by a predetermined angle about the aircraft is carried out. 26. A device for constructing a synthetic image of the environment of an aircraft and presenting it to at least one pilot of said aircraft, said device comprising: information sources comprising information relating to the aircraft and to its environment; information processing section able to construct a synthetic image of the environment of the aircraft on the basis of information emanating from said information sources; and display means able to present, on at least one part of a display screen, said synthetic image, wherein: said information processing section formed in such a way as to implement the process specified under claim 1.

이 특허에 인용된 특허 (1)

Frederick Philip R.. Automatic horizontal and vertical scanning radar with terrain display. USP1998075781146.

이 특허를 인용한 특허 피인용횟수: 11

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Process and device for constructing a synthetic image of the environment of an aircraft and presenting it on a screen of said aircraft

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Process and device for constructing a synthetic image of the environment of an aircraft and presenting it on a screen of said aircraft

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