UAV Remote Control Polarization Switching for Attitude Mismatch
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Solution Overview
Problem
The challenge is to maintain effective communication between unmanned aerial vehicles (UAVs) and remote control devices despite changes in the UAV's attitude during flight, which can cause polarization mismatch in electromagnetic waves, leading to poor communication quality.
Innovation Solution
A method that determines an initial synthetic polarization direction based on transmission antenna information and adjusts to a target synthetic polarization direction using attitude data from the UAV, ensuring that the remote control device communicates with the UAV using the appropriate polarization direction to avoid mismatch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the UAV changes its attitude during flight, then the coverage and flexibility of the communication system is improved, but polarization mismatch occurs leading to degraded communication quality
Solution Approach 1:
The patent applies dynamics by making the polarization direction adjustable rather than fixed. The remote control device dynamically switches between first and second polarization directions based on the UAV's real-time attitude information, allowing the system to adapt to changing flight conditions while maintaining reliable communication.
Solution Approach 2:
The patent implements feedback by using the UAV's attitude information (from accelerometers, gyroscopes, or magnetic sensors) to determine the appropriate polarization direction. The remote control device continuously receives attitude data and adjusts its polarization direction accordingly, creating a closed-loop system that maintains communication quality despite attitude changes.
2Device complexity
If a fixed polarization direction is used for communication, then the device complexity is reduced, but communication quality deteriorates when the UAV attitude changes
Solution Approach 1:
The system transitions from a static polarization configuration to a dynamic one where the polarization direction can switch between two predetermined directions. This dynamic approach maintains relatively simple device structure while significantly improving communication reliability under varying attitude conditions.
3Adaptability or versatility
If multiple polarization directions are supported, then the adaptability to attitude changes is improved, but the device complexity increases
Solution Approach 1:
The patent applies local quality by having different antenna elements with specific polarization characteristics positioned at different locations. The system selectively activates appropriate antenna elements based on attitude conditions, providing localized optimization without requiring complete system redesign.
Solution Approach 2:
The system changes the polarization direction parameter between two predetermined directions based on attitude information. This parameter switching approach provides adaptability to attitude changes while avoiding the complexity of supporting continuous or numerous polarization directions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly improves communication quality by ensuring that electromagnetic waves are transmitted and received in the optimal polarization direction, enhancing signal reception and control command delivery between the UAV and the remote control device.
Implementation Method 1
determining a target synthetic polarization direction based at least in part on the attitude data and the initial synthetic polarization direction, wherein the remote control device is configured to communicate with the movable platform using the target synthetic polarization direction
Data Source
AI summary
A method, a remote control device, and a system are provided. The method may include: determining an initial synthetic polarization direction based at least in part on transmission antenna information of a movable platform; obtaining attitude data indicative of an attitude change of the movable platform; and determining a target synthetic polarization direction based at least in part on the attitude data and the initial synthetic polarization direction, wherein a remote control device is configured to communicate with the moveable platform using the target synthetic polarization direction. By adopting the method, the communication quality between the remote control device and the moveable platform can be improved.