Aircraft Hover Control for Takeoff From Moving Marine Platforms
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Solution Overview
Problem
Existing aircraft control systems struggle to initialize and take off from non-static marine vehicles like ships or yachts due to the wobbling motion caused by water flow, making it difficult to ensure safe flight.
Innovation Solution
A method and device that determine flight modes (absolute hovering or relative hovering) based on current flight parameters and preset heights, controlling the aircraft to achieve stable flight by adjusting speeds and heights, using remote control devices and sensors to compensate for non-static conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the aircraft uses traditional initialization methods requiring a static plane, then the initialization accuracy is improved, but the adaptability to marine vehicles is worsened
Solution Approach 1:
The patent implements dynamic initialization by determining whether the reference object is static or moving, and selecting different initialization strategies accordingly. For moving marine vehicles, the system performs multiple sequential initializations (body coordinate system initialization followed by takeoff coordinate system initialization) rather than requiring a single static plane initialization, enabling adaptation to dynamic platforms while maintaining accuracy
Solution Approach 2:
The system changes the initialization parameters and procedures based on the motion state of the reference object. When the marine vehicle is moving, the system adjusts the initialization process to account for the platform's motion, using different coordinate systems and multiple initialization steps instead of the traditional single static initialization approach
2Adaptability or versatility
If the aircraft takes off from a moving marine vehicle, then the versatility of the aircraft is improved, but the flight safety is worsened
Solution Approach 1:
The system performs preliminary actions by conducting body coordinate system initialization before takeoff coordinate system initialization, and by performing multiple initializations in sequence. This preliminary preparation ensures that the aircraft's navigation and control systems are properly calibrated before takeoff, enhancing safety despite the challenging moving platform conditions
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring the motion state of the reference object and adjusting the initialization and control parameters accordingly. The dual-initialization approach provides feedback validation, ensuring that the aircraft achieves proper orientation and stability before and during takeoff from the moving marine vehicle
3Measurement precision
If the aircraft performs multiple initializations in sequence, then the initialization accuracy is improved, but the time consumption is increased
Solution Approach 1:
The system dynamically determines the motion state of the reference object and selectively executes the appropriate initialization sequence. For static platforms, traditional single initialization is used, while for moving marine vehicles, the system performs the optimized multi-step initialization. This dynamic adaptation reduces unnecessary time consumption while maintaining accuracy when needed
Data Source
AI summary
Embodiments of the present invention relate to a method of controlling an aircraft and a flight control device for an aircraft, an aircraft with such flight control device and a storage medium. The method includes: determining a flight mode adopted by the aircraft in a non-static state; if the flight mode is an absolute hovering mode, determining a target speed of the aircraft according to a current flight speed, a current flight height and a first preset hovering height of the aircraft and a remote control speed set for the aircraft by remote control device; if the flight mode is a relative static hovering mode, determining the target speed of the aircraft according to a relative flight speed, the current flight height, a second preset switching hovering height and the remote control speed; and controlling the aircraft to fly according to the target speed.