Forward-looking forecast warning system in ground proximity warning system and method

Abstract

The invention discloses a forward-looking forecast warning system in a ground proximity warning system and a method, which is characterized in that the forward-looking forecast warning system comprises a forward-looking forecast warning processor. The input end of the forward-looking forecast warning processor is connected with an air data computer, a navigation system, radio equipment, and a terrain memory, the aircraft speed and the flight path angle information are received, a warning domain based on the current aircraft position is calculated on the basis of built-in warning domain calculation method, a warning domain on the basis of the geographic coordinate system is calculated in combination with aircraft position information, query is carried out in a terrain database, warning is generated if a terrain invades the warning domain, and the warning information is outputted. The system and the method have the advantages of reducing false alarms and missing alarms to the maximal degree, improving warning performances and ensuring flying security.

Description

technical field [0001] The invention relates to a ground-proximity warning technology, in particular to a forward-looking prediction warning system and method in a ground-proximity warning system. Background technique [0002] The ground proximity warning system is an avionics system that can improve the flight safety of aircraft and reduce the controlled flight into terrain accident (CFIT). The alarm system receives flight parameter data such as position, altitude, speed, descent rate, and glide path deviation, and combines with the built-in high-precision terrain (obstacle) database to judge and process according to the set alarm algorithm, and provides five basic alarms and The enhanced forward-looking predictive warning provides the flight crew with audible and visual warning information and surrounding terrain information. [0003] Although the ground proximity warning system can provide the flight crew with hazard warnings and reduce the occurrence of controllable gro...

AI Technical Summary

Problems solved by technology

If the alarm is issued early when the dangerous state is far away, that is, a false alarm is generated, the crew may gradually lose confidence in the alarm, thereby ignoring the alarm, and at the same time exert invisible pressure on the crew, affecting other higher-level alarms; if the distance When the dangerous state is close, the alarm is too late, that is, the alarm is missed, so within the limited performance constraints of the aircraft, the danger may not be avoided in time, resulting in the tragedy of aircraft crash

Images