UAV Gimbal Rotation Control for Precise Camera-Roll Video Capture
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Solution Overview
Problem
Existing methods for capturing camera-rotated videos using unmanned aerial vehicles face difficulties due to manual control challenges, particularly in accurately controlling the gimbal's roll angle over extended periods, resulting in suboptimal video capture effects.
Innovation Solution
A video capturing method and apparatus that determines the rotation speed and initial angle of the gimbal based on target flight distance and rotation angle, allowing automated control of the unmanned aerial vehicle and gimbal to capture videos from an initial to a target rotation angle, thereby improving the accuracy and quality of camera-rotated videos.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual control is used to control the gimbal's roll angle and the unmanned aerial vehicle's yaw angle simultaneously through a joystick or remote control handle, then the operator can control the unmanned aerial vehicle to capture videos, but the difficulty in operating the unmanned aerial vehicle becomes very great and the roll angle of the gimbal cannot be accurately controlled for a long time
Solution Approach 1:
The system automatically determines the rotation speed of the gimbal based on the target flight distance and target rotation angle, and automatically controls the gimbal to rotate from the current rotation angle to the initial rotation angle. This self-service automation eliminates the need for manual simultaneous control of multiple parameters, reducing operational difficulty while maintaining precise control throughout the video capture process
Solution Approach 2:
The patent replaces the manual mechanical control system (joystick or remote control handle) with an automated control system that uses computational algorithms to determine rotation speed and control angles. This substitution transforms the control mechanism from manual mechanical operation to automated electronic control, significantly reducing the difficulty of operation while improving long-term control accuracy
2Adaptability or versatility
If the yaw angle of the unmanned aerial vehicle is rotated when looking down at the gimbal to achieve camera rotation effect, then the camera rotation effect can be achieved, but the roll angle of the gimbal cannot be accurately controlled for a long time during video capture
Solution Approach 1:
The patent segments the camera rotation control into two independent parts: the unmanned aerial vehicle's yaw angle control for achieving the camera rotation effect, and the gimbal's roll angle control for maintaining stable orientation. By separating these controls and automating the gimbal's roll angle maintenance, the system achieves the desired camera rotation effect while ensuring reliable and accurate roll angle control throughout the video capture process
Solution Approach 2:
The system implements automated feedback control by continuously monitoring the gimbal's rotation angle and adjusting the rotation speed accordingly. The controller determines the rotation speed based on the target flight distance and target rotation angle, and automatically adjusts the gimbal's rotation to maintain the correct roll angle throughout the video capture, ensuring long-term control stability
Data Source
AI summary
Disclosed are a video capturing method and apparatus using an unmanned aerial vehicle, an unmanned aerial vehicle and a storage medium. The method includes: determining a rotation speed of a gimbal according to a target flight distance of the unmanned aerial vehicle and a target rotation angle of the gimbal; determining an initial rotation angle of the gimbal according to a rotation direction and the target rotation angle of the gimbal, and controlling the gimbal to rotate from a current rotation angle to the initial rotation angle; and capturing a video of a target object from the initial rotation angle to the target rotation angle according to a flight direction and the target flight distance of the unmanned aerial vehicle, and the rotation speed and the rotation direction of the gimbal.