An alarm suppression method for ground proximity warning system

Abstract

The invention belongs to the field of near-ground warning of aircraft, and in particular relates to a warning suppression method of a ground-proximity warning system. In the alarm suppression method of the ground proximity alarm system of the present invention, an alarm suppression button with two response modes of long pressing and short pressing is set on the control panel. When any alarm mode generates an alarm, short press the alarm suppression button to enter the alarm mode. Suppression state; long press the alarm suppression button to switch between the system normal state and the system suppression state. Compared with the traditional multiple alarm suppression buttons, the present invention only uses one button, through long press and short press and certain control logic, to achieve all alarm suppression purposes, significantly reduce the number of buttons used, greatly simplify the layout difficulty of the control panel, especially to meet the control requirements. Design needs for specific situations such as limited panel space or limited number of keys around the monitor.

Description

technical field [0001] The invention belongs to the field of near-ground warning of aircraft, and in particular relates to a warning suppression method of a ground-proximity warning system. Background technique [0002] The ground proximity warning system is the main equipment for the aircraft to effectively prevent the controllable flight into the ground and ensure flight safety. In each stage of flight, the ground proximity warning system uses the built-in terrain database, obstacle database, etc., according to the aircraft's geographic location, flight altitude, attitude, heading and speed and other flight state parameters, according to the pre-defined requirements of the ground proximity warning algorithm. , to judge whether the aircraft is in a dangerous area, and to provide the pilot with a combination of voice, light and terrain display warnings in a timely manner, to avoid collisions with mountains and ground accidents, and to ensure flight safety. [0003] The grou...

AI Technical Summary

Problems solved by technology

[0003] The ground proximity warning system usually includes warning modes such as excessive ground proximity speed warning, excessive descent speed warning, height drop warning after takeoff, unsafe ground clearance warning, excessively low glide slope warning, and forward-looking forecast warning. When there is a potential risk of collision with the ground, the pilot is provided with warning prompts such as voice, light, and warning colors. In most cases, these warning prompts are necessary and allow the pilot to effectively prevent danger; however, there are also errors due to external signal failures and local errors in the database. Or pilots deliberately make tactical maneuvers, etc., which will generate unnecessary alarm output and cause interference to pilots. Therefore, the ground proximity warning system has an alarm suppression function

[0004] The alarm suppression mode of the ground proximity warning system is realized by pressing the button. The existing ground proximity warning system generally has the functions of "system disable", "terrain suppression", "glide slope cancellation", "flaps suppression", "landing gear suppression ” and other 5 buttons, respectively realize the suppression of all the warnings of the ground proximity warning system, the forward-looking forecast warning, the warning of excessively lower than the glideslope, the warning of unsafe ground clearance without flaps and the unsafe ground clearance of non-positioned landing gear High alarm, this traditional alarm suppression method requires 5 buttons, which has the following problems: it needs to occupy a large area on the control panel or need to set more peripheral keys on the display, which is not conducive to integrated design, especially for the limited area of ​​the control area Some old aircraft plus modification projects, the button layout is difficult

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