UAV Flight Route Planning Under Sensor and Range Limits

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Solution Overview

Problem

Existing technologies for controlling unmanned aerial vehicle (UAV) flight routes fail to efficiently acquire environment information due to limitations in sensor performance, flight distance based on fuel or battery capacity, and communication device range.

Innovation Solution

A device and method that generate a flight route for UAVs based on sensor performance, flight available distance, and communication device range, allowing the UAV to follow the route from a departure point to a destination, including detecting a center point and sensing region, and adjusting flight paths accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the UAV flies along the travel route to acquire environment information, then the navigation route creation is improved, but the UAV cannot efficiently acquire information when sensor performance, flight distance, or communication range are limited

Engineering Contradiction:
Improveenvironment information acquisition efficiencyVSAvoidflight completion reliability
Core Design Contradiction:
Loss of informationVSReliability

Solution Approach 1:

The travel route is segmented into multiple flight routes based on the UAV's sensor performance, flight available distance, and communication available distance. Each flight route covers a specific section of the travel route, ensuring that the UAV can efficiently acquire environment information within its operational limits while maintaining reliable flight completion.

Inventive Principle:
Principle #1Segmentation

2Loss of information

If the UAV flies the entire travel route, then complete environment information is acquired, but fuel consumption exceeds available capacity

Engineering Contradiction:
Improveenvironment information coverageVSAvoidfuel consumption
Core Design Contradiction:
Loss of informationVSUse of energy by moving object

Solution Approach 1:

Instead of flying the entire travel route, the system generates multiple partial flight routes that collectively cover the complete travel route. Each flight route is optimized to be within the UAV's flight available distance, preventing excessive fuel consumption while ensuring complete environment information acquisition through multiple sequential flights.

Inventive Principle:
Principle #16Partial or excessive action

3Area of stationary object

If the UAV flies beyond communication range, then more area is covered, but communication with the vehicle is lost

Engineering Contradiction:
Improvesensing coverage areaVSAvoidcommunication availability
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The flight routes are dynamically adjusted based on the communication available distance. The UAV maintains communication by flying within the communication range of the vehicle, and the system adaptively plans multiple flight routes that ensure continuous communication while maximizing sensing coverage area within the communication constraints.

Inventive Principle:
Principle #15Dynamics

4Area of stationary object

If the UAV uses maximum sensor range, then sensing coverage is maximized, but flight time exceeds available duration

Engineering Contradiction:
Improvesensing coverage areaVSAvoidflight time
Core Design Contradiction:
Area of stationary objectVSDuration of action of moving object

Solution Approach 1:

The sensing coverage area is segmented into multiple sections, each covered by a separate flight route within the flight available distance. This allows the UAV to maximize sensor range utilization within each flight segment while completing the entire travel route coverage through multiple sequential flights, preventing excessive total flight time.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11869367B2Device and method for controlling flight of unmanned aerial vehicle
Publication Date: 2024.01.09 HYUNDAI MOTOR CO LTD
  • US11869367B2 patent drawing
  • US11869367B2 patent drawing
  • US11869367B2 patent drawing

AI summary

A device and a method for controlling flight of an unmanned aerial vehicle are provided. To efficiently acquire environment information required to generate a navigation route of a vehicle, the device include a receiver that receives departure point information and destination information of a vehicle. A controller that generates a flight route corresponding to a travel route from a departure point to a destination of the vehicle based on at least one of a sensing range of a sensor mounted on the unmanned aerial vehicle, a flight available distance based on a fuel amount, and a communication available distance of a communication device mounted on the unmanned aerial vehicle, and operates the unmanned aerial vehicle to follow the generated flight route.