UAV Remote Control Link Switching for Interference-Free Feedback
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Solution Overview
Problem
Interference occurs between control data and feedback data transmissions when they share the same frequency band, leading to poor data reception and potential loss of control for unmanned aerial vehicles (UAVs).
Innovation Solution
Implementing a dynamic communication link switching system that uses a monitoring terminal with two communication modules: one for receiving control data from a controlling terminal via a second communication link that does not interfere with the feedback data transmission, and another for transmitting control data to the UAV.
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 communication system can be simplified, but interference occurs causing poor data reception and potential loss of control
Solution Approach 1:
The communication system is segmented into two separate frequency bands: one dedicated for control data transmission and another for feedback data transmission. This segmentation eliminates interference between the two data streams while maintaining system functionality, resolving the contradiction between simplicity and reliability.
Solution Approach 2:
A frequency band allocation mechanism acts as an intermediary that assigns separate frequency resources to control and feedback transmissions. This mediator prevents direct interference by ensuring that control and feedback data occupy different spectral domains, thereby improving reception reliability without significantly increasing system complexity.
2Reliability
If separate frequency bands are used for control data and feedback data transmissions, then interference is eliminated improving data reception, but the communication system complexity increases
Solution Approach 1:
The communication modules are designed with multi-functionality, capable of operating across multiple frequency bands. This universal design allows the system to switch between frequency bands as needed, providing reliable interference-free communication without requiring entirely separate hardware systems for each frequency band.
Solution Approach 2:
The frequency band allocation is implemented dynamically, allowing the system to adaptively switch between frequency bands based on operational requirements. This dynamic approach maintains reliability by ensuring separate transmission channels while managing complexity through flexible, software-controlled frequency management rather than fixed hardware configurations.
Data Source
AI summary
A system includes a first terminal configured to transmit control data to a controlled terminal via a first communication link for controlling operation of the controlled terminal, and a second terminal configured to transmit control data to the controlled terminal via a second communication link for controlling operation of the controlled terminal. The second terminal is further configured to, in response to the first communication link being under interference, receive the control data from the first terminal via a third communication link and transmit the control data received from the first terminal to the controlled terminal via the second communication link.