A landing critical fuel quantity warning method and system

Abstract

The present application discloses a method and a system for warning a critical fuel quantity for landing, and belongs to the field of aircraft avionics system. The invention calculates and displays the critical fuel quantity for landing at each airport nearby by real-time calculation, and indicates the warning urgency of the fuel quantity for landing by positive and negative values and color. Theinvention can make up for the shortcomings that traditional warning for residual fuel quantity can only warn for a preset warning fuel quantity, that the function is relatively simple, and that demandof changing the real-time position of the aircraft and demand of changing the landing airport cannot be satisfied. Compared with the traditional method for warning the residual fuel quantity, the present application can provide reference of the fuel quantity required for landing at the nearby airport to pilots, especially can provide effective decision-making information when the aircraft has remaining fuel shortage, and it is necessary to decide at which airport to land or decide whether it is necessary to refuel in the air, so that flight risks can be greatly reduced.

Description

Technical field [0001] The application belongs to the field of aircraft avionics systems, and in particular relates to a method and a system for warning critical landing fuel quantity. technical background [0002] At present, for the aircraft, only the remaining fuel quantity alarm is usually given, that is, when the remaining fuel quantity of the aircraft is less than the set warning fuel quantity, the function is relatively single, and it can only be used to prompt the pilot how much fuel is left, and it is difficult to give the real-time information about how much fuel is needed to land at a nearby airport. However, when it is necessary to decide which airport to land at or whether to refuel in the air, it is difficult to provide effective decision-making information for the pilot, and it is largely dependent on. However, pilots often only have flight experience in a few airports that take off and land frequently. If they fly far away from the familiar airport or fly in a lon...

AI Technical Summary

Problems solved by technology

[0002] At present, for aircraft, there is generally only an alarm for the remaining fuel volume, that is, when the remaining fuel volume of the aircraft is less than the set alarm fuel volume, the alarm is issued. It can be used to remind the pilot how much fuel is left. It is difficult to give real-time information on how much fuel is needed to land at a nearby airport. It is difficult to provide effective information to the pilot when it is necessary to decide which airport to land or whether to refuel in the air. Auxiliary decision-making information can only rely on the pilot's experience and judgment to a large extent

However, pilots often only have flying experience in a few airports that take off and land frequently. If they are far away from familiar airports or fly long distances or go to areas that pilots are not familiar with, the accuracy of experience judgments will be greatly reduced, and it will be greatly affected. Therefore, it is necessary to design a warning method or system that can give real-time information on the amount of fuel required for landing (that is, the critical amount of fuel) and the urgency of the landing fuel amount at nearby airports.

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