UAV Remote Control Relay Links to Avoid Signal Interference
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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 a dynamic communication link switching system that uses a monitoring terminal to receive control data from a controlling terminal via a non-interfering communication link, and then transmits this data to the UAV, thereby avoiding interference with feedback data transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the same frequency band is used for both control data transmission and feedback data transmission, then the communication system can be simplified and operate efficiently, but interference occurs between simultaneous transmissions causing poor data reception and potential loss of control
Solution Approach 1:
The patent segments the communication system into two separate communication modules: a first communication module dedicated to control data transmission and a second communication module dedicated to feedback data transmission. This segmentation allows each module to operate independently on the same frequency band without interfering with each other, thus maintaining communication efficiency while ensuring reliable data reception.
Solution Approach 2:
The patent introduces a monitoring terminal as an intermediary device that receives feedback data from the controlled terminal and transmits it to the controlling terminal. This intermediary approach separates the feedback data transmission path from the direct control data path, allowing both control and feedback communications to occur simultaneously on the same frequency band without interference, thereby maintaining system efficiency while improving reliability.
2Reliability
If separate frequency bands are used for control data and feedback data transmissions, then interference between transmissions is eliminated, but the device complexity and cost increase
Solution Approach 1:
The patent makes the same frequency band serve multiple functions by using it for both control data transmission and feedback data transmission through different communication modules. The first communication module handles control data while the second communication module handles feedback data, allowing the frequency band to be universally utilized for both purposes simultaneously without requiring separate frequency bands, thus reducing device complexity while maintaining transmission reliability.
3Productivity
If simultaneous transmissions of control data and feedback data occur on the same frequency band, then communication bandwidth is efficiently utilized, but interference causes loss of control or disruption of operations
Solution Approach 1:
The patent segments the transmission functions into separate communication modules operating on the same frequency band. The first communication module transmits control data while the second communication module transmits feedback data simultaneously without interference. This segmentation allows efficient bandwidth utilization while eliminating the harmful interference that would normally occur with simultaneous transmissions on the same frequency band.
Data Source
AI summary
A system includes a first terminal and a second terminal. The first terminal is configured to communicate with a controlled terminal via a first communication link. The second terminal is configured to communicate with the controlled terminal via a second communication link and communicate with the first terminal via a third communication link. The second terminal is further configured to relay data between the first terminal and the controlled terminal via the second communication link and the third communication link.