UAV Remote Control Link Separation for Interference-Free Feedback
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Solution Overview
Problem
Interference occurs between control data and feedback data transmissions in unmanned aerial vehicles (UAVs) when using the same frequency band, leading to poor data reception and potential loss of control.
Innovation Solution
Implementing dynamic communication link switching and interference avoidance techniques such as time-division multiplexing (TDM) or frequency-division multiplexing (FDM) to separate control data and feedback data transmissions, using different frequency bands or wired connections to prevent interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the same frequency band is used for both control data transmission and feedback data transmission, then the wireless communication system can be simplified, but interference occurs causing poor data reception and potential loss of control
Solution Approach 1:
The patent segments the communication channels by separating control data transmission and feedback data transmission into different frequency bands. The first wireless communication module transmits control data on a first frequency band while the second wireless communication module transmits feedback data on a second frequency band, eliminating interference between the two data streams while maintaining system functionality.
Solution Approach 2:
The patent resolves the frequency band conflict by transitioning to another dimension of resource allocation - using spatial separation through multiple wireless communication modules operating on different frequency bands. This dimensional approach allows simultaneous transmission of control and feedback data without interference, balancing system simplicity with communication reliability.
2Reliability
If different frequency bands are used for control data and feedback data transmissions, then interference is avoided, but the wireless communication system complexity increases
Solution Approach 1:
The monitoring terminal is designed with multi-functionality, incorporating both a first wireless communication module for receiving control data and a second wireless communication module for transmitting feedback data. This universal design allows the single terminal to handle multiple communication functions simultaneously on different frequency bands, achieving reliable interference-free communication without requiring separate dedicated terminals for each function.
3Speed
If control data is transmitted directly from controlling terminal to controlled terminal, then transmission speed is fast, but interference with feedback data transmission occurs
Solution Approach 1:
The patent introduces an intermediary approach where the monitoring terminal receives control data from the controlling terminal via a wired connection and then transmits it to the controlled terminal wirelessly. This intermediary role allows the control data to be transmitted without directly interfering with the feedback data transmission channel, as the control data path and feedback data path are separated through different modules and frequency bands.
Data Source
AI summary
A monitoring terminal includes a transceiver, a receiver, and a processor. The transceiver provides a two-way communication with an unmanned aerial vehicle (UAV) via a first communication link and is configured to receive feedback data and a feedback data indication from the UAV and transmit control data to the UAV. The receiver is configured to receive the control data and a control data indication from a controlling terminal via a second communication link. The second communication link does not interfere with the first communication link. The processor is configured to determine whether the feedback data and the control data are being simultaneously transmitted via the first communication link based on the feedback data indication and the control data indication.