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Method and system for correcting LOC signal of flight control system of airplane

A flight control system and signal technology, applied in the field of aircraft flight control systems, can solve the problems of LOC signal deviating from the target approach track, unable to accurately identify and correct LOC signal abnormalities or deviations, etc., to avoid error accumulation over time, The effect of improving accuracy

Active Publication Date: 2019-11-22
COMAC +1
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Problems solved by technology

[0008] The technical problem to be solved in the present invention is to overcome the existing approach control technology of the aircraft, which is easy to deviate from the target approach track due to the abnormality or deviation of the received LOC signal, and cannot accurately identify and correct the abnormality or deviation of the LOC signal To solve the defects of the aircraft, a new method and system for correcting the LOC signal in the flight control system of the aircraft are proposed

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  • Method and system for correcting LOC signal of flight control system of airplane
  • Method and system for correcting LOC signal of flight control system of airplane
  • Method and system for correcting LOC signal of flight control system of airplane

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Embodiment Construction

[0057] The preferred embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. The following descriptions are exemplary and not limiting to the present invention. Any other similar situations also fall within the protection scope of the present invention.

[0058] In the following detailed description, directional terms, such as "left", "right", "upper", "lower", "front", "rear", etc., are used with reference to directions described in the drawings. Components of embodiments of the present invention may be positioned in a variety of different orientations, and directional terms are used for purposes of illustration and not limitation.

[0059] According to the method for correcting the LOC signal in the flight control system of the preferred embodiment of the present invention, the method comprises the following steps:

[0060] Continuously collecting LOC signals and continuously collecting flight parameters o...

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Abstract

The invention discloses a method and system for correcting an LOC signal of a flight control system of an airplane. The method comprises that the LOC signal and a flight parameter are collected; realchange trench of an absolute value of the LOC signal is determined according to positive / negative state of the LOC signal and the course, and the real change rate of the LOC signal is obtained according to the flight parameter; according to the absolution value of the LOC signal and change of the absolute value, the reference change trend and reference change rate of the absolute value of the LOCsignal is determined; whether a correction excitation condition that can represent relatively large deviation of the LOC signal is satisfied is determined; and if YES, the LOC signal is corrected by using the real change rate of the present LOC signal, and the corrected LOC signal is output to the flight control system. Via the method and system, abnormity or deviation of the LOC signal can be accurately identified and corrected, and the airplane approaching accuracy and reliability are improved.

Description

technical field [0001] The invention relates to a flight control system of an aircraft, in particular to a method and a system for correcting an LOC signal in the flight control system of an aircraft. Background technique [0002] ILS (instrument landing system) is a navigation system widely used for aircraft precision approach. Among them, the LOC (localizer) is installed on the extended line of the runway center beyond the end of the runway, and the beam of the LOC is a sector with a small angle, which is used to provide guidance for the aircraft relative to the localizer (horizontal position) of the runway. When the aircraft uses ILS approach, the aircraft will first intercept the LOC signal, and according to the deviation of the aircraft from the center line of the runway provided by the LOC signal, the aircraft will cut into the center line of the runway. [0003] In some cases, another aircraft or ground vehicle may travel through the locator beam emitted by the LOC d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/10
CPCG05D1/101
Inventor 邵慧刘军周超岳峰刘文渊张兆亮
Owner COMAC
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