UAV Remote Control Link Switching to Prevent Signal Interference
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Solution Overview
Problem
Interference between simultaneous transmissions of control data and feedback data over shared frequency bands in unmanned aerial vehicles (UAVs) leads to poor data reception and potential loss of control.
Innovation Solution
Implementing dynamic communication link switching using time-division multiplexing (TDM) or frequency-division multiplexing (FDM) to separate control data transmission from feedback data transmission, with control data being routed through a monitoring terminal via a communication link that does not interfere with the feedback data link.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If control data and feedback data are transmitted simultaneously over shared frequency bands, then communication efficiency is improved, but interference occurs causing poor data reception and potential loss of control
Solution Approach 1:
The patent segments the communication channels by introducing separate communication links for control data and feedback data. The control data is transmitted through a first communication link while feedback data uses a second communication link, preventing interference between simultaneous transmissions while maintaining communication efficiency
Solution Approach 2:
The monitoring terminal acts as an intermediary device that receives feedback data from the controlled terminal via the second communication link and forwards it to the controlling terminal. This intermediary approach allows feedback data to be transmitted separately from control data, eliminating interference while preserving real-time monitoring capabilities
2Reliability
If separate communication links are used for control data and feedback data, then interference is reduced improving data reception quality, but device complexity increases
Solution Approach 1:
The monitoring terminal is designed with multi-functionality, serving both as a feedback data reception point and as a relay for forwarding feedback data to the controlling terminal. This universal device approach consolidates multiple functions into a single component, reducing overall system complexity while maintaining separate communication paths
Solution Approach 2:
The patent merges the feedback data transmission function with the monitoring terminal, which already exists in the system. By combining feedback reception and forwarding capabilities in the monitoring terminal, the system achieves separate communication links without proportionally increasing device complexity
Data Source
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AI summary
Methods and systems are provided for preventing interference from simultaneous data transmissions in a remote control system. A controlled terminal is typically configured to receive control data from a controlling terminal and to transmit feedback data to a monitoring terminal. To prevent interference caused by the simultaneous transmissions of control data and feedback data. The controlling terminal can transmit the control data to the monitoring terminal, which then transmits the control data to the controlled terminal. Such transmission of the control data may be carried out in a way that does not interfere with the transmission of the feedback data.