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Method of transmitting flight data recorded by a black box of an aircraft by a radioelectric beam whose directivity changes if a critical state of the aircraft is detected

A radio wave, emergency technology, applied in the field of flight recorders, can solve the problems of easy damage of recorders and inability to restore recorders

Active Publication Date: 2017-02-15
SAFRAN ELECTRONICS & DEFENSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, these recorders are still fragile, and it may not be possible to recover them after an accident in the ocean

Method used

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  • Method of transmitting flight data recorded by a black box of an aircraft by a radioelectric beam whose directivity changes if a critical state of the aircraft is detected
  • Method of transmitting flight data recorded by a black box of an aircraft by a radioelectric beam whose directivity changes if a critical state of the aircraft is detected
  • Method of transmitting flight data recorded by a black box of an aircraft by a radioelectric beam whose directivity changes if a critical state of the aircraft is detected

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Experimental program
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Embodiment Construction

[0031] refer to figure 1 , the aircraft 1 includes a flight recorder B, a processing module T, a control module C and a transmitter A of a radio beam.

[0032] The recorder B or "black box" is a known device suitable for collecting and storing data representative of the flight conditions of the aircraft 1 .

[0033] In this context, the expression "flight data" denotes data collected by flight recorders, for example standardized flight data will enable the emission of a diagnosis of the flight situation of the aircraft 1 .

[0034] On the one hand, the flight recorder can be adapted to record voice channels: four "audio" channels are recorded (pilot, co-pilot, cabin atmosphere and airflow-controlled dialogue). This record allows recovery of the last two hours before the accident.

[0035] Usually, the maximum binary throughput rate of an audio channel is 32kbit / s, so the amount of data generated per second is: 4 audio channels×32kbit / s+1 data channel×2kbit / s=130kbit / s, that ...

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Abstract

There is proposed a method of in-flight transmission of data recorded by a black box of an aircraft (1), the method comprising the emission (600) by the aircraft (1) of a radioelectric beam (F1, F2) transporting said data according to a first directivity (D1) if at least one predetermined parameter does not indicate a critical state of the aircraft (1), and according to a second directivity (D2) different from the first directivity (D1) if the predetermined parameter indicates a critical state of the aircraft (1).

Description

technical field [0001] The present invention relates to the field of flight recorders, which are carried on board aircraft and are commonly referred to by the term "black box". [0002] More specifically, the invention relates to a method for transmitting during flight the type of flight data collected by these recorders. Background technique [0003] According to aviation regulations, today's aircraft are equipped with devices that enable the collection and storage of flight data into memory and audio communication systems. These devices are commonly referred to by the terms "flight recorders" or "black boxes" or "crash recorders". In the event of an accident or even an accident on the aircraft, the content of the flight recorder of the aircraft is usually analyzed on the ground to determine the root cause of the accident or accident on the aircraft. [0004] Therefore, a standard flight recorder must be extremely durable (typically withstand temperatures of about 1500 de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C5/00G07C5/08H04B7/185B64D45/00
CPCB64D45/00B64D2045/0065G07C5/008G07C5/085H04B7/0617H04B7/18506B64D45/0059H04B7/18508
Inventor 阿兰·乔帝尼丹尼斯·德尔维尔菲利普·里维埃
Owner SAFRAN ELECTRONICS & DEFENSE