Topographic data based ground proximity method and system thereof

Abstract

The invention relates to a topographic data based ground proximity method and a system thereof; wherein, the topographic data based ground proximity method includes: reading in parameters according to a configuration document or using default parameters for parameter configuration and acquiring a topographic data according to the configuration data; searching and acquiring the altitude value of topographic data within the screen display semi-diameter area around the plane according to plane position, height, course angle and screen display semi-diameter information and displaying the topographic situation in front of the plane on the screen display according to different colors corresponding to the altitude values of topographic data. The topographic data based ground proximity method and the system acquires more comprehensive topographic data around the plane according to the altitude value of topographic data within the screen display semi-diameter area around the plane, thus reducing CFIT accident occurrence rate and improving the safety performance of the plane.

Description

technical field [0001] The invention relates to information processing technology, in particular to a ground proximity warning method and system based on terrain data; it belongs to the field of aviation technology. Background technique [0002] With the development of aviation technology, the safety requirements of aircraft are getting higher and higher. Air traffic control is an effective technology to make aircraft on the route safe, effective and planned to fly in the airspace. Among them, the ground proximity warning system (Ground Proximity Warning System, GPWS) is one of the important components of aircraft flight safety. It can be based on excessive descent speed, excessive near-ground rate; too small flaps lowered during take-off or go-around climb; too low altitude; when the aircraft approaches, the glide path deviates downward; wind shear and other conditions provide the pilot with Provide a warning message. [0003] GPWS can avoid controlled flight into terrain...

AI Technical Summary

Problems solved by technology

However, this traditional ground proximity warning system still has certain limitations, such as not being able to understand the situation ahead

Because it only has the function of "looking down" and depends on the radio altitude, and the radio altitude cannot reflect the terrain in front of the aircraft; it can assess whether there is danger ahead by tracking past flight information and predicting future flight information , but if there is a sudden rising terrain ahead, the warning signal cannot be issued in time; there is a "no warning" factor limitation, when the aircraft landing gear and flaps are in the landing configuration and descending at a normal speed, terrain warning cannot be provided; Thus limiting the improvement of aircraft safety performance

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