UAV Dive Control Using Pitch, Throttle, and Heading Adjustment
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Solution Overview
Problem
Existing UAV technologies face limitations in flexibility due to the thrust-to-weight ratio, which is primarily determined by hardware structure, making it difficult to enhance control flexibility through software means.
Innovation Solution
A method and apparatus for controlling UAVs that involve obtaining and detecting preset instructions for flight actions, adjusting the UAV's attitude and flight direction based on pitch angle, throttle amount, and heading angle, and controlling the UAV to perform dive actions autonomously or according to direction control, while shielding from throttle instructions during the dive.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the thrust-to-weight ratio is increased to improve UAV flexibility, then the UAV can perform more aggressive flight actions, but the hardware structure becomes more complex and costly
Solution Approach 1:
The patent changes the control parameters and flight dynamics model to enable flexible flight actions without requiring high thrust-to-weight ratio hardware. By adjusting pitch angle, throttle amount, and heading angle parameters, and implementing a new control method that accounts for descending acceleration, the system achieves software-level flexibility improvement without hardware modification
Solution Approach 2:
The patent replaces the mechanical approach (increasing thrust-to-weight ratio through hardware) with a control system approach (software-based flight control method). The new control method substitutes mechanical power increases with intelligent control algorithms that calculate adjusted speeds and coordinates based on pitch angle, throttle amount, and heading angle, achieving the same flexibility goal without additional mechanical complexity
2Adaptability or versatility
If traditional flight control methods are used, then the control system is simple, but the UAV cannot perform large-scale dive actions or maintain stability during aggressive maneuvers
Solution Approach 1:
The patent implements a dynamic control system that adapts to changing flight conditions during dive actions. The control method dynamically calculates adjusted speed and target coordinates based on real-time pitch angle, throttle amount, and heading angle, and continuously adjusts control instructions during the dive to maintain stability and enable precise maneuvering
Solution Approach 2:
The patent incorporates feedback mechanisms where the control system receives pilot inputs (pitch angle, throttle amount, heading angle), processes them through the new flight dynamics model, generates adjusted control instructions, and monitors the results to maintain stability during aggressive maneuvers
3Speed
If the UAV performs dive actions with high descending acceleration, then thrilling flight actions are achieved, but the control precision and stability deteriorate
Solution Approach 1:
The patent performs preliminary calculations of adjusted speed and target coordinates before executing dive actions. The control system pre-computes the necessary control instructions based on the desired pitch angle, throttle amount, and heading angle, allowing the UAV to maintain control precision even during high-descending-acceleration maneuvers
Data Source
AI summary
A method for controlling an unmanned aerial vehicle (UAV) may comprise obtaining an instruction for controlling the UAV; detecting that the instruction is a preset instruction for a flight action; and controlling the UAV to move in the flight action according to the preset instruction. The instruction may include a first instruction configured to control the UAV to perform a dive action in a diving attitude autonomously or a second instruction configured to control the UAV to perform the dive action according to a received direction control instruction.