UAV Delivery Route Control for Safe Return and Collision Avoidance

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Solution Overview

Problem

Conventional package delivery methods using delivery trucks are limited by the driver's speed, preventing simultaneous delivery to multiple locations and increasing the risk of damage or injury due to UAV maneuvers.

Innovation Solution

An unmanned aerial vehicle (UAV) delivery control system that automatically manages the UAV's operation to deliver packages along an airborne route while adhering to FAA guidelines, adjusting dynamically to environmental changes and ensuring safe return to a changing destination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple UAVs are coordinated to deliver packages simultaneously, then delivery efficiency and productivity are improved, but the risk of collisions and interference between UAVs increases

Engineering Contradiction:
Improvedelivery efficiencyVSAvoidcollision risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system implements real-time feedback through continuous monitoring of UAV positions, velocities, and package trajectories. The centralized server receives telemetry data from all UAVs and dynamically adjusts flight paths to prevent collisions, enabling safe coordinated delivery operations

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

A centralized server acts as an intermediary that coordinates between multiple UAVs. The server processes flight path data, identifies potential collision risks, and generates adjusted trajectories, serving as a mediator that enables productive multi-UAV operations while preventing harmful interactions

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If automated flight path adjustment is implemented to avoid obstacles and other UAVs, then safety and reliability are improved, but system complexity and computational requirements increase

Engineering Contradiction:
Improveflight safetyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines obstacle detection, collision risk assessment, and flight path optimization functions into a single centralized server system. This merging approach improves reliability through comprehensive monitoring while managing complexity by consolidating computational functions rather than distributing them across multiple independent systems

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The centralized server performs multiple functions including real-time tracking of UAV positions, detection of obstacles and other UAVs, calculation of collision risks, and generation of adjusted flight paths. This multi-functionality improves safety through comprehensive monitoring while avoiding the complexity of multiple separate specialized systems

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If real-time monitoring and coordination of multiple UAVs is implemented, then collision avoidance and safety are improved, but communication bandwidth and processing requirements increase

Engineering Contradiction:
Improvecollision avoidanceVSAvoidcommunication bandwidth
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system implements partial monitoring by prioritizing the transmission of critical collision-related data over less urgent operational parameters. The centralized server focuses computational resources on calculating collision risks and adjusting flight paths only when necessary, rather than continuously processing all possible parameters, thereby reducing communication bandwidth requirements while maintaining collision avoidance capability

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentEP3962811B1UAV delivery control system for UAV delivery of packages
Publication Date: 2026.02.18 WORKHORSE GROUP INC
  • EP3962811B1 patent drawingFigure 1
  • EP3962811B1 patent drawingFigure 2
  • EP3962811B1 patent drawingFigure 3

AI summary

A UAV delivery control system is disclosed. Sensors detect operation parameters associated with the UAV as the UAV maneuvers along an airborne delivery route. A UAV operation controller monitors UAV route parameters as the UAV maneuvers along the airborne delivery route. The UAV route parameters are indicative as to a current environment of the airborne delivery route that the UAV is encountering. The UAV operation controller automatically adjusts the operation of the UAV to maintain the operation of the UAV within an operation threshold based on the operation parameters and the UAV route parameters. The operation threshold is the operation of the UAV that is maintained within an overall airborne operation radius of the UAV from a return destination thereby enabling the UAV to execute the delivery of the package along the airborne delivery route and to return to the return destination.