UAV Flight Path Planning Using Environmental Maps and Signal Quality

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Solution Overview

Problem

Existing approaches for determining flight paths for unmanned aerial vehicles (UAVs) are not sufficiently adaptive to changes in circumstances or tailored to the properties of the flying region, leading to suboptimal performance.

Innovation Solution

A system that uses a combination of sensors to generate environmental maps, allowing UAVs to autonomously determine flight paths based on conditions such as the vehicle's state, flight environment, and signal transmission, incorporating path search algorithms to navigate safely and efficiently through diverse environments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing approaches for determining flight paths are used, then the system is simpler to implement, but the adaptability to changes in circumstances and properties of flying regions is insufficient

Engineering Contradiction:
Improveadaptability to changes in circumstancesVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The flight path determination system dynamically adapts to changing circumstances by continuously monitoring flight conditions, environmental factors, and signal transmission quality. The system adjusts flight paths in real-time based on current state rather than following predetermined static routes, enabling responsiveness to dynamic changes in the operating environment.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates feedback mechanisms by evaluating signal quality metrics at different locations along potential flight paths. This feedback loop allows the UAV to assess communication conditions and adjust its trajectory to maintain optimal signal transmission, thereby improving adaptability through continuous information about system performance.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If existing approaches for determining flight paths are used, then the implementation is simpler, but the tailoring to properties of flying regions is insufficient

Engineering Contradiction:
Improvetailoring to properties of flying regionsVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system applies local quality by evaluating signal quality metrics at specific locations within different flying regions. Rather than treating all regions uniformly, the system assesses communication conditions locally at potential waypoints and selects paths that optimize signal transmission for each specific region's properties, enabling tailored navigation decisions.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system changes parameters by evaluating multiple signal quality metrics (such as signal strength, bandwidth, transmission quality) at different locations and using these parameter variations to determine optimal flight paths. This parameter-based approach allows the system to adapt to regional properties by selecting paths where the measured parameters indicate favorable communication conditions.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If signal quality evaluation at multiple locations is performed, then the accuracy of flight path determination is improved, but the time required for path determination increases

Engineering Contradiction:
Improvesignal quality measurement accuracyVSAvoidpath determination time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system applies partial action by evaluating signal quality at a selective subset of locations rather than exhaustively measuring every possible point along potential flight paths. This approach maintains sufficient measurement precision for accurate path determination while reducing the overall time required by focusing evaluations on critical waypoints and potential path segments.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The system performs preliminary evaluation of signal quality metrics at potential flight path locations before final path selection. By pre-assessing communication conditions at candidate waypoints, the system prepares information that speeds up the final path determination process, reducing the time required when actual navigation decisions must be made.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4009128B1Flight path determination
Publication Date: 2023.10.25 SZ DJI TECH CO LTD
  • EP4009128B1 patent drawingFigure 1
  • EP4009128B1 patent drawingFigure 2
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AI summary

Systems and methods for determining a flight path for an aerial vehicle are provided. The systems and methods or particularly useful for autonomous flight planning or navigation of unmanned aerial vehicles.