Adaptive Rotor Gain Control for Jitter-Free Aerial Video
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Solution Overview
Problem
Contemporary remote controlled aerial vehicles do not adapt to changing cinematography requirements, resulting in subpar operation with issues like jitter, 'jello' effect, and horizon drift in captured videos.
Innovation Solution
A flight controller system that dynamically adjusts gain values for actuator control based on sensor inputs and control modes, optimizing flight characteristics for different cinematography tasks such as wide angle, action, and panning, by modifying the power signal sent to the thrust motors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed gain values are used for actuator control, then the system is simple to operate, but the video quality deteriorates with jitter and horizon drift
Solution Approach 1:
The patent implements dynamic gain adjustment where the flight controller automatically modifies actuator control gain values based on detected flight conditions and cinematography requirements. This transforms the static control system into an adaptive one that responds to changing operational parameters, thereby improving video quality without requiring manual intervention from the operator.
Solution Approach 2:
The system incorporates feedback mechanisms that monitor flight characteristics and cinematography performance, then use this information to adjust control parameters in real-time. This closed-loop approach enables the controller to maintain optimal video quality by continuously adapting to flight conditions and correcting for issues like jitter and horizon drift.
2Reliability
If adaptive gain control is implemented, then video quality improves by reducing jitter and noise, but the device complexity increases
Solution Approach 1:
The flight controller is designed to autonomously adjust its own control parameters without external intervention. The system self-monitors flight conditions and self-corrects video quality issues by dynamically modifying gain values, thereby improving performance while minimizing the need for additional hardware or manual configuration.
Solution Approach 2:
The patent changes control parameters (gain values) dynamically based on operational conditions. By adjusting these parameters in response to detected flight characteristics and cinematography requirements, the system improves video quality through parameter optimization rather than through structural modifications.
3Productivity
If manual control is used, then the system is easy to operate, but flight performance is suboptimal for different cinematography tasks
Solution Approach 1:
The control system dynamically adapts its characteristics based on the detected cinematography task and flight conditions, providing optimal performance for different operations without requiring the user to manually adjust parameters. This dynamic adaptation enables professional-grade cinematography performance while maintaining simple manual control interfaces.
Solution Approach 2:
The system automatically changes control parameters to match different cinematography requirements, such as adjusting gain values for panning, stabilization, or wide-angle shots. This parameter adaptation occurs transparently to the user, delivering optimized performance for each task without increasing operational complexity.
Data Source
AI summary
An aerial vehicle comprises one or more sensors to environmental data, a communication system to receive control inputs from a user, two or more actuators, with each actuator coupled to a rotary wing. The aerial vehicle also comprises a controller to determine a mode of the aerial vehicle based on the environmental data and the control inputs, each mode indicating a set of flight characteristics for the aerial vehicle, generate a gain value based on the mode, the gain value, when used to modify power signals transmitted to actuators of the aerial vehicle, causing the aerial vehicle to conform within the indicated flight characteristics of the determined mode, generate an output signal modified by the gain value based on the input signal, and transmit a power signal based on the output signal to each actuator of the aerial vehicle.