A Helicopter Air Separated Emergency Flight Data Recording System

Abstract

The invention discloses a helicopter aerial separation type emergency flight data recording system. The system includes: an emergency analysis system, an ejection system and a buffer / floating system; the emergency analysis system is used to judge whether the helicopter is in an emergency state, and when the helicopter is in an emergency state, it controls the ejection system to start; the ejection system uses The buffer / flotation system is used to eject the buffer / float system from the helicopter; the buffer / float system includes: a radio transceiver, an electromechanical module, and an air bag wrapped outside the electromechanical module; the electromechanical module includes a flight data recorder and a gas generator, and the gas generator The gas used to inflate the airbag is generated under the control of the flight data recorder; the radio transceiver is electrically connected with the flight data recorder and broadcasts a positioning signal. The invention has the advantages of being intelligent and quickly separated from the aircraft, having strong resistance to high-altitude falling to the ground, being able to float on the water surface after falling into water, and being easy to search and rescue.

Description

technical field [0001] The invention relates to the technical field of helicopter emergency, in particular to a helicopter air-separated emergency flight data recording system. Background technique [0002] With the development of civil aviation industry at home and abroad, helicopter crashes due to mechanical failures and other reasons are increasing day by day. At present, in order to record the accident process, investigate the cause of the accident, and improve aviation safety, higher requirements are put forward for the flight data recorder (FDR). The traditional FDR is fixed inside the helicopter. When the helicopter crashes, the traditional FDR relies on its own impact-resistant structure to protect the internal data storage device. After the helicopter crashes, the traditional FDR relies on the waterproof structure to protect the internal data storage device. Search and rescue team positioning. [0003] However, the ceiling of civil helicopters is generally 2,000 t...

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Problems solved by technology

[0003] However, the ceiling of civil helicopters is generally 2,000 to 4,000 meters, and the ceiling of military helicopters can reach 6,000 meters. If the helicopter has a mechanical failure (engine shutdown, etc.) at high altitude, it will fall at a relatively high speed. At this time, the impact resistance of traditional FDR The structure will also be damaged to varying degrees. If the helicopter crashes into the sea, its wreckage may sink into the deep sea. According to the practice of maritime air disaster rescue, traditional FDR has problems such as difficult retrieval in deep sea, underwater signal interference, and limited battery life. Salvage costs soar

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