UAV Remote Control Link Separation for Interference-Free Transmission

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

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

VSEngineering 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 between simultaneous transmissions causing poor data reception and potential loss of control

Engineering Contradiction:
Improvewireless communication system complexityVSAvoiddata transmission reliability
Core Design Contradiction:
Device complexityVSReliability

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 system simplicity while ensuring reliable data transmission.

Inventive Principle:
Principle #1Segmentation

2Productivity

If simultaneous transmissions of control data and feedback data occur on the same frequency band, then communication efficiency is maintained, but interference disrupts normal operations and causes loss of control

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidcontrol stability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent extracts the feedback data transmission function into a separate second communication module that operates independently from the first communication module handling control data. This extraction enables simultaneous transmissions without interference, maintaining high communication efficiency while ensuring control stability through isolated transmission pathways.

Inventive Principle:
Principle #2Taking out (Extraction)

3Device complexity

If a single communication module is used for both control and feedback data, then the device structure is simplified, but interference between simultaneous transmissions causes poor data reception

Engineering Contradiction:
Improvecommunication module structureVSAvoiddata reception quality
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent divides the communication system into two separate communication modules, each handling specific data types. The first communication module transmits control data while the second communication module receives feedback data, both operating on the same frequency band without mutual interference. This segmentation maintains relatively simple device structure while significantly improving data reception quality.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11841702B2Remote control methods and systems
Publication Date: 2023.12.12 SZ DJI TECH CO LTD
  • US11841702B2 patent drawing
  • US11841702B2 patent drawing
  • US11841702B2 patent drawing

AI summary

A device includes a transceiver, a receiver, and a processor. The transceiver is configured to receive feedback data from an unmanned aerial vehicle (UAV) and transmit control data to the UAV via a first communication link. The receiver is configured to receive the control data 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.