Ground proximity warning system alarm inhibition method

Abstract

The invention belongs to the field of airplane ground proximity warning, and particularly relates to a ground proximity warning system alarm inhibition method. The ground proximity warning system alarm inhibition method comprises the steps that an alarm inhibition button with the two responding modes of long pressing and short pressing is arranged on a control panel, when any alarm mode gives an alarm, the button is inhibited through short pressing alarming, and the short pressing alarming mode is inhibited; when the button is inhibited through long pressing alarming, the system is switched between the normal state and the inhibition state. Compared with a plurality of alarm inhibition buttons traditionally, only one button is adopted, long pressing, short pressing and certain control logic are adopted, all alarming inhibition purposes are achieved, the number of adopted buttons is remarkably decreased, the layout difficulty of the control panel is greatly simplified, and particularly the design requirement for specific conditions that the space of the control panel is limited or the number of buttons on the periphery of a displayer is limited can be met.

Description

technical field [0001] The invention belongs to the field of aircraft ground proximity warning, in particular to an alarm suppression method of a ground proximity warning system. Background technique [0002] The ground proximity warning system is the main equipment for effectively preventing controlled flight into terrain accidents and ensuring flight safety. At each stage of flight, the ground proximity warning system is based on various flight state parameters such as the aircraft's geographical location, flight altitude, attitude, heading, and speed, and uses the built-in terrain database, obstacle database, etc., in accordance with the predefined ground proximity warning algorithm requirements , to make a judgment on whether the aircraft is in a dangerous area, and timely provide pilots with a combination of voice, light and terrain display warnings to avoid collisions with mountains and ground accidents and ensure flight safety. [0003] The ground proximity warning s...

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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