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Glide slope deviation determination system and method, and aircraft

A method of determination, technology of aircraft, applied in the field of digital image processing and aviation, to achieve good positive results

Pending Publication Date: 2022-02-11
BEIJING AERONAUTIC SCI & TECH RES INST OF COMAC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The glideslope deviation determination system is applicable to civil fixed-wing aircraft, and is part of a vision-based assisted driving system. It is used to solve how to obtain aircraft glideslope deviation data close to the accuracy of existing sensors through image recognition technology, and apply it in practice Problems with real aircraft

Method used

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  • Glide slope deviation determination system and method, and aircraft
  • Glide slope deviation determination system and method, and aircraft
  • Glide slope deviation determination system and method, and aircraft

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Embodiment 1

[0040] In an embodiment provided by the present invention, an aircraft attitude determination system is provided, and the system includes an image acquisition device, an image processing unit, and a pose calculation unit.

[0041] The image acquisition device is installed on the aircraft and is used to collect image data containing key information of the runway; the image acquisition device uses a CCD camera and should meet the specification requirements of GJB 7083. At the same time, the image pixels collected by the image collection device are at least 680×680. In this embodiment, the image data collected by the image acquisition device is taken from the perspective of the driver, ensuring that the field of view of each frame of image can cover the runway during the entire advanced landing, and its focal length should ensure that the runway is clearly visible.

[0042] The image processing unit preprocesses the image data, and can process the image of the image acquisition d...

Embodiment 2

[0064] Embodiment 2 is the same as Embodiment 1 in structure and composition of the glide slope deviation system, the difference lies in that the training method for the glide slope deviation prediction model based on machine learning in the pose calculation unit is different. Embodiment 2 uses the data collected from the real environment during training, and the data collection process of the model before training is as follows:

[0065] Collect data from the real environment: the data includes image data from the driver's perspective and airborne data; in order to achieve data diversity, in different weathers, including sunny, cloudy, low visibility and stormy, etc., as well as morning, middle and evening At three different times, the video images of the approach and landing of the aircraft were collected from a position 3 nautical miles away from the runway threshold. Then the airborne data corresponding to the image data is obtained from the aircraft bus. The airborne dat...

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Abstract

The invention discloses a glide slope deviation determination system and method and an aircraft, belongs to the field of digital image processing and the field of aviation, and provides an image-based solution different from an ILS system and a GBAS system for proximity landing guidance. The glide slope deviation determination system is suitable for civil fixed-wing aircrafts, is a part based on a visual aided driving system, and is used for solving the problem of how to obtain glide slope deviation data of an aircraft with precision similar to that of an existing sensor through an image recognition technology and actually apply the glide slope deviation data to a real aircraft. According to the main technical scheme, the system comprises an image acquisition device, an image processing unit and a pose resolving unit.

Description

technical field [0001] The invention relates to the fields of digital image processing and aviation, in particular to a glide path deviation determination system and an aircraft. Background technique [0002] Landing is one of the most critical stages of flight in the operation of fixed-wing aircraft. During the landing process, the deviation between the aircraft and the glide path is an essential parameter. Most of the existing approach and landing guidance in China is based on ILS, but ILS has the following problems: the signal is formed by ground reflection, and is easily affected by the ground and surrounding objects. Snow, water and high weeds will make the reflected signal abnormal ; The working channel is close to the frequency of FM broadcasting, and is susceptible to interference from FM stations; each runway threshold requires a set of ILS equipment, and an ILS system only provides one vertical path, and all aircraft land at the same point; high capital investment,...

Claims

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Application Information

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IPC IPC(8): G06F30/15G06F30/20
CPCG06F30/15G06F30/20
Inventor 熊绎维陈华郭浩张炯孙廷婷吴赫男
Owner BEIJING AERONAUTIC SCI & TECH RES INST OF COMAC
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