UAV Control Security via AAA Protocol and Geo-Fencing

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Solution Overview

Problem

Unmanned aerial vehicles (UAVs) face vulnerabilities in control systems due to unsafe development of control algorithms, leading to potential hacking and accidents, and existing security measures often introduce new vulnerabilities, necessitating secure and efficient control mechanisms that minimize risks and enhance safety.

Innovation Solution

Implementing a secure Authentication, Authorization, and Accounting (AAA) protocol with real-time monitoring and Geo-Fence technology to ensure safe navigation and communication integrity, using a Centralized Control System that authenticates pilots and UAVs, authorizes flights, and monitors UAVs' positions and flight zones, with encryption protocols for secure communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If control algorithms are developed without systematic security detection, then development speed and ease of operation are improved, but security vulnerabilities increase leading to hacking risks and accidents

Engineering Contradiction:
Improvedevelopment speedVSAvoidsecurity vulnerability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent implements security detection and authentication mechanisms before the UAV control system is deployed or modified. The system performs preliminary security checks on control algorithms and communication protocols before allowing operation, preventing vulnerabilities from reaching production without requiring complete system recertification for every minor update.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent establishes continuous monitoring and feedback loops that detect security anomalies, unauthorized access attempts, and system vulnerabilities in real-time. The centralized control system receives feedback from UAVs about their security status and communicates updates, creating a closed-loop system that continuously improves security without halting operations.

Inventive Principle:
Principle #23Feedback

2Reliability

If security upgrades are implemented in control software, then security vulnerabilities are reduced, but recertification of the entire system is required increasing complexity and time

Engineering Contradiction:
Improvesecurity levelVSAvoidrecertification process
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the UAV system into modular components with distinct security boundaries. Security updates can be applied to individual modules (communication protocols, authentication mechanisms, control algorithms) independently, with each module having its own security certification. This allows incremental security improvements without requiring complete system recertification.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements security features and authentication mechanisms during the initial design and development phases rather than as post-deployment patches. By building security into the architecture from the beginning, the system achieves high security levels without requiring extensive later recertification processes.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If centralized authentication and monitoring systems are implemented, then security and control are improved, but system complexity and communication requirements increase

Engineering Contradiction:
Improvecontrol securityVSAvoidsystem architecture
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent designs the centralized control system to perform multiple functions through a single architecture: authentication, authorization, monitoring, and update distribution. The same communication infrastructure used for normal UAV control is also used for security management, eliminating the need for separate dedicated security channels and reducing overall system complexity.

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

Solution Approach 2:

The patent introduces a centralized control system that acts as an intermediary between UAVs and ground control stations. This intermediary handles all authentication, authorization, and monitoring functions, simplifying the architecture by centralizing security functions rather than distributing them across multiple points in the system.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Reliability

If Geo-Fence technology and real-time monitoring are deployed, then navigation safety is enhanced, but loss of time and communication bandwidth increase

Engineering Contradiction:
Improvenavigation safetyVSAvoidcommunication delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent pre-defines Geo-Fence boundaries and authorized flight zones before UAV operations begin. These geographic constraints are loaded into the UAV's navigation system in advance, allowing the UAV to autonomously determine whether its intended path is authorized without requiring real-time communication with the centralized system for each position check.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent combines Geo-Fence monitoring with the UAV's existing navigation and flight control systems. The same onboard computer that handles flight stabilization and path planning also processes Geo-Fence constraints, eliminating the need for separate monitoring hardware and reducing communication overhead by making decisions locally rather than through continuous external communication.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3349085B1Secure control of unmanned vehicles
Publication Date: 2020.05.06 TECTECO SECURITY SYST
  • EP3349085B1 patent drawingFigure 1
  • EP3349085B1 patent drawingFigure 2
  • EP3349085B1 patent drawingFigure 3

AI summary

The present invention provides a method, system and devices to establish safe mechanisms for controlling aerial navigation of Unmanned Vehicles (for example. unmanned aerial vehicles, UAVs). Safety in the aerial navigation of the UAVs is increased, through authentication, authorization and monitoring mechanisms that address current technical vulnerabilities, especially in UAV control communications and in the information generated by the UAV, creating links between the pilot of the UAV, the UAV and aviation safety control/regulation (ASAs) bodies.