Flight into terrain threat avoidance method based on real-time performance of aircraft

Abstract

The invention relates to the research field of an aircraft ground hitting protection method, and particularly relates to a flight into terrain threat avoidance method based on real-time performance of an aircraft. The flight into terrain threat avoidance method comprises the steps of predicting a future flight path of the aircraft by adopting an aircraft six-degree-of-freedom model, and performing a next step when a ground hitting threat is judged to exist from the future flight path; planning an avoidance flight path of the aircraft by adopting a heuristic search algorithm so as to acquire a planned avoidance path, wherein the step comprises restriction for constraint conditions and punishment conditions in the heuristic search algorithm; and converting the planned avoidance path into a manipulation indicator in the form of an attitude angle so as to guide a pilot to operate. The flight into terrain threat avoidance method based on the real-time performance of the aircraft can improve the alarm accuracy, and guide the pilot to perform appropriate alarm response measures, thereby not only reducing the operation load of the pilot, but also improving the safety, the economy and the comfort of flight of the aircraft.

Description

technical field [0001] The invention relates to the research field of aircraft collision protection methods, in particular to a flight collision threat avoidance method based on the real-time performance of an aircraft. Background technique [0002] One of the important causes of aviation accidents is controlled flight into terrain. Controlled flight into terrain means that all parts of the aircraft are in a completely normal state. It is not due to its own failure or engine failure, but because the crew manipulates the aircraft into a mountain, falls into the ground or flies into the water without any awareness of danger. As a result, the aircraft crashed or was seriously damaged, resulting in casualties. [0003] One of the common ways to solve CFIT is to install ground proximity warning equipment on board. On January 1, 2007, the Civil Aviation Administration of China required that all turbo-engined aircraft with a maximum take-off weight exceeding 5,700kg or approved p...

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a kind of flight-to-terrain threat avoidance method based on t

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