UAV Navigation Security System Rogue Signal Detection
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Solution Overview
Problem
Unmanned aerial vehicles (UAVs) are vulnerable to rogue location signals that can misdirect them, as existing navigation systems lack robust security measures to detect and mitigate such threats, potentially leading to compromised flight paths.
Innovation Solution
A navigation security system onboard UAVs that processes combinations of location signals for validity by matching signal identifications and RSSI values against known data, using heuristic techniques to identify rogue signals and quarantine compromised systems, allowing safe landing or navigation using validated signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If UAVs use open location signal systems (GPS, cell towers, access points) for navigation, then navigation capability and ease of operation are improved, but vulnerability to rogue signals and reliability deteriorate
Solution Approach 1:
The system performs preliminary validation of location signals by checking signal combinations against a database of known legitimate signals before using them for navigation. This advance verification prevents rogue signals from compromising the UAV, maintaining both navigation capability and reliability.
Solution Approach 2:
The patent introduces an intermediary validation layer between the open location signal system and the UAV navigation system. This intermediary checks signal combinations and RSSI values against known databases, acting as a mediator that enables use of open signals while filtering out rogue signals.
2Reliability
If UAVs process and validate combinations of location signals to detect rogue signals, then reliability and security are improved, but device complexity and computational requirements increase
Solution Approach 1:
The system processes combinations of signals and uses RSSI validation as additional checks, but only to the extent necessary for security. By focusing on key validation aspects rather than exhaustive analysis, the system achieves improved reliability without excessive complexity.
3Reliability
If the system quarantines compromised UAVs to prevent further compromise, then security and reliability are improved, but loss of time and operational continuity worsen
Solution Approach 1:
The system extracts and isolates the compromised UAV from the operational fleet through quarantine, preventing further compromise of other units. This separation protects the overall system reliability while allowing individual containment of affected units.
Data Source
AI summary
A navigation security module of an unmanned aerial vehicle (UAV) receives a combination of signals from a location technology, each signal comprising at least a signal identification and location data. The combination of signal identifications is processed against known identifications. If the identification is not found, or if the combination of signal identification is not possible, the signal may be a rogue signal, resulting in a quarantine protocol.