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Aircraft angle-of-attack detector real-time monitoring method

A real-time monitoring and detector technology, which is applied in civil aviation maintenance engineering and civil aviation aircraft health monitoring, can solve the problems of large manpower and material resources, consumption, poor effect, etc., achieve good versatility, avoid time-consuming and laborious, and realize simple and convenient Effect

Pending Publication Date: 2020-12-22
中国南方航空股份有限公司
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  • Application Information

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Problems solved by technology

Although the above operations can achieve the purpose of troubleshooting, they cannot accurately locate the fault, consume a lot of manpower and material resources, and the effect is not good

Method used

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  • Aircraft angle-of-attack detector real-time monitoring method
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  • Aircraft angle-of-attack detector real-time monitoring method

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Embodiment Construction

[0051] The following provides a real-time monitoring method for the B737 aircraft angle of attack detector.

[0052] The overall architecture of the system based on the above method is mainly divided into three modules: an airborne ACMS monitoring module, a ground engineering monitoring module, and a user terminal. The overall structure of the system is shown in figure 2 shown.

[0053] 1. Airborne ACMS monitoring module

[0054] This module is mainly composed of digital flight data interface component DFDAU, aircraft status monitoring system ACMS, printer, control display unit MCDU, communication management component CMU, wireless WQAR and air data sensor. The airborne ACMS monitoring module is mainly responsible for monitoring the health status of the aircraft angle-of-attack detector, collecting atmospheric data and key flight parameters, and triggering the AOA message, and then sending the message to the aircraft's communication management component CMU, and then throug...

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Abstract

The invention discloses an aircraft angle-of-attack detector real-time monitoring method. According to the method, in ACMS, autonomous monitoring logic for monitoring inconsistency between left and right AOAs of an aircraft, or inconsistency between the left and right AOAs of the aircraft plus one or a combination of more than two of inconsistency between left and right airspeeds, inconsistency between left and right heights of the aircraft, an AOA signal fault and a stall event is added; message formats for collecting atmosphere data and key flight parameters are customized; and when a relevant event occurs and corresponding monitoring logic is triggered, the ACMS collects corresponding atmosphere data and key flight parameters based on a customized message, triggers an aircraft downlinkACARS message and / or displays important parameters through an MCDU. According to the method, the health state of the AOAs is monitored through the ACMS, so that ground engineering personnel and a crewcan have better understanding of the condition of the AOAs, ground accurate troubleshooting is convenient, and the crew can quickly judge a fault source.

Description

technical field [0001] The industry to which the invention belongs is the civil aviation transportation industry, especially the field of health monitoring of civil aviation aircraft and the field of civil aviation maintenance engineering. Background technique [0002] About Aircraft Angle of Attack Detectors [0003] The angle of attack detector (AOA) is used to measure the angle between the longitudinal axis of the aircraft and the direction of the airflow, that is, the angle of attack of the aircraft in motion. The B737 aircraft has two AOAs, which provide data for the left and right ADIRUs respectively. The angle of attack is closely related to the aerodynamics of the aircraft. Within a certain range, the greater the angle of attack of the aircraft, the greater the lift coefficient and drag coefficient. However, when the angle of attack exceeds a certain value (called the critical angle of attack), the lift coefficient and drag coefficient decrease instead. At this p...

Claims

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Application Information

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IPC IPC(8): B64D45/00
CPCB64D45/00B64D2045/0085
Inventor 宋剑吴锋刘宇辉李志明高畅欧阳祖铁魏弘平肖萌周激光路艳军任明翔何侃李文杰陈韬吴松风
Owner 中国南方航空股份有限公司
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