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Method for computing and displaying piloting information including 'relief factor'

一种因子、显示屏的技术，应用在用于计算和显示包含“地貌因子”的领航信息领域，能够解决不完全外部景观、俯仰标尺显示问题、领航信息显示问题等问题

Inactive Publication Date: 2018-09-28
THALES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solution only partially addresses the absence of realistic aspects of the exterior landscape, or so it is thought
[0006] The second problem is the display of the navigation information when it has to be superimposed on the composite image of the exterior landscape, and specifically, the display of the pitch scale
None of these representations ensure both a satisfactory composite image representation and distortion-free overlap of the pitch scale

Method used

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  • Method for computing and displaying piloting information including 'relief factor'
  • Method for computing and displaying piloting information including 'relief factor'
  • Method for computing and displaying piloting information including 'relief factor'

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Embodiment Construction

[0023] The method according to the invention is implemented in an avionics system. Avionics systems typically include:

[0024] - A sensor that makes it possible to know the position and altitude of the aircraft in space. For example, the sensor is a satellite positioning system or an inertial unit;

[0025] - A map database representing the terrain that has been flown over;

[0026] - a graphic computer, which makes it possible to calculate a graphic image from previous data;

[0027] - One or more display devices mounted in the dashboard and / or in a head-up configuration.

[0028] The method according to the invention requires calculations which are essentially calculations of changes to a three-dimensional or two-dimensional reference coordinate system. These calculations can easily be performed in real time by suitable software onboard the aircraft's computer. The calculations performed by the software are described in detail below.

[0029] For translucent display s...

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PUM

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Abstract

The invention relates to a method for computing and displaying piloting information including 'relief factor'. The method is provided for two-dimensional graphic representation on an aircraft displayscreen of an image or of a symbol or of a symbology (PE) whose three-dimensional coordinates in a terrestrial reference frame are known. The graphic representation of the object or of the symbol is stretched in a vertical axis by a constant factor (alpha) lying between 1.0 and 1.2, the stretching having, for its neutral plane, the local horizontal geographic plane containing the aircraft. Furthermore, when the symbology is a pitch scale consisting of graduations, two successive graduations being separated by a constant angular value, the graphic representations of two successive graduations ofthe pitch scale are separated by a constant distance on the display screen.

Description

technical field [0001] The general field of the invention is the display of symbolic or real or composite images of external landscapes in aircraft display systems. These synthetic imaging systems are referred to simply as "SVS", which stands for "Synthetic Vision System". Background technique [0002] This composite image is displayed in a three-dimensional projection in order to better correspond to the reality of the exterior landscape. [0003] This image usually includes pilot and navigation information referred to simply as "PFD" (meaning "Primary Flight Display"). In particular, such information includes a scale representing the pitch of the aircraft (referred to simply as "pitch scale") and a symbol representing the direction of the aircraft (referred to simply as "FPV", meaning "Flight Path Vector"). This image is typically displayed on a display on the aircraft's instrument panel. figure 1 A display of this type is shown schematically with a dotted line represen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C23/00
CPCG01C23/00G01C23/005G06F3/147G09G2340/0414G09G2340/125G09G2380/12B64D43/00
Inventor J·卢克斯E·蒙瓦森S·鲁兹
Owner THALES SA