A method for safe protection and return of UAV fuel quantity

Abstract

The invention discloses a course reversal method for safety protection of fuel quantity of an unmanned aerial vehicle. The method comprises the following steps: setting an initial oil capacity in software of a flight control computer; setting a real-time residual fuel capacity calculating function according to a test relationship table of oil consumption of an engine, an accelerator and a pressure altitude; then combining the function with the existing GPS position and preset air route longitude and latitude information of the unmanned aerial vehicle to estimate the requested safe fuel quantity of the unmanned aerial vehicle which can continuously land to an airport along an air route and return to the airport along the air route; when a safety threshold value is achieved, automatically shielding an operator of the unmanned aerial vehicle by the flight control computer to implement the instruction for online air route adjustment and executing an emergent return task of the unmanned aerial vehicle which continuously flies to the airport along the preset air route or returns along the air route for safety protection of fuel quantity.

Description

technical field [0001] The invention discloses a method for automatic safety protection and return of an unmanned aerial vehicle, in particular to a method for automatic safety protection and return of the remaining fuel amount of an unmanned aerial vehicle, belonging to the technical field of unmanned aerial vehicles. Background technique [0002] With the development of UAV applications, in addition to flying according to the predetermined route, the current UAV can also conduct reconnaissance or attack on suddenly discovered targets through artificial online route adjustment instructions. However, during these real-time additional tasks, the control of the remaining fuel amount has become a safety hazard. At present, some UAVs monitor the remaining fuel by installing fuel level sensors, but because there is no associated alarm with the amount of fuel required to return to the airport, and because the UAV establishes communication with ground operators through radio or sat...

AI Technical Summary

Problems solved by technology

However, during these real-time additional tasks, the control of the remaining fuel level has become a safety hazard

At present, some UAVs monitor the remaining fuel by installing fuel level sensors, but because there is no associated alarm with the amount of fuel required to return to the airport, and because the UAV establishes communication with ground operators through radio or satellite , if there is a communication failure, then the safety hazard of remaining fuel will become more prominent, and communication failure has become the most likely failure in the UAV failure architecture

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