Fixed-Wing Aircraft Flight Control System for Automated Landing
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Solution Overview
Problem
Fixed-wing aircraft are prone to damage during landing due to misoperation, leading to increased costs and safety concerns, which hinders their widespread application.
Innovation Solution
A flight control method and system that automatically guides the aircraft to return to a designated landing site by calculating a return flight line formed by alternating horizontal and inclined runways, using sensors and GPS for real-time adjustments to ensure accurate landing, reducing manual control and energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual control is used during landing, then the operator can control the aircraft, but the operator is likely to misuse or difficult to control the landing location and speed, causing damage or crash
Solution Approach 1:
The aircraft performs self-landing through automatic control systems that calculate the return route and control flight parameters autonomously, eliminating the need for manual operator intervention during the critical landing phase and preventing human error
Solution Approach 2:
The manual mechanical control system is replaced with an automated electronic control system that uses sensors, processors, and actuators to control the aircraft's flight path and landing parameters, improving precision and reliability
2Reliability
If the fixed-wing aircraft is damaged during landing, then the cost of the user is greatly increased, but this does not promote popularization and application
Solution Approach 1:
The system pre-calculates the return route and landing parameters before execution, and performs preliminary checks of flight conditions, ensuring that all necessary control actions are prepared in advance to guarantee safe landing and prevent damage
Solution Approach 2:
The control system continuously monitors flight parameters and compares them with the planned return route, making real-time adjustments to maintain precise control during landing, thereby preventing damage and reducing costs
3Measurement precision
If the return flight line is calculated with high precision, then landing accuracy is improved, but the calculation complexity increases
Solution Approach 1:
The return flight path is divided into multiple discrete waypoints or segments, with each segment calculated independently based on local conditions. This segmentation simplifies the overall calculation while maintaining high precision through cumulative accuracy across segments
Data Source
AI summary
A fixed-wing aircraft and flight control method and system thereof are provided. The flight control method includes steps of: setting a landing site of the fixed-wing aircraft; calculating a landing runway which starts from a runway origin and ends at the landing site and is formed by alternately connecting horizontal runways with inclined runways, wherein a horizontal distance between the runway origin and the landing site is determined according to a type of the fixed-wing aircraft, and a descent rate coefficient of the inclined runways varies with a horizontal length of the inclined runways; obtaining a current location of the fixed-wing aircraft and calculating a return route which starts from the current location of the fixed-wing aircraft and ends at the runway origin; and forming a return flight line by combining the return route with the landing runway.