GNSS Interference Avoidance Routing for Real-Time Vehicle Navigation
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Solution Overview
Problem
Global Navigation Satellite Systems (GNSS) data integrity is compromised by external factors such as landscape, weather, receiver quality, satellite health, and intentional interference like jamming and spoofing, which can lead to navigation errors and pose safety risks.
Innovation Solution
A method and system that determine if a vehicle's current path intersects with GNSS spoofing or jamming regions, providing an alternative travel plan that avoids these areas, using a central processing system, GNSS receivers, and processor circuitry to assess and adjust the route in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reactive detection methods are used to inform operators of GNSS jamming or spoofing occurrences, then operators can be warned of interference, but the navigation disruptions and safety threats cannot be prevented in advance
Solution Approach 1:
The system performs preliminary actions by proactively identifying and avoiding GNSS interference regions before the vehicle enters them. The server determines geographic regions where jamming or spoofing is likely to occur and provides alternative travel plans that bypass these regions in advance, rather than merely detecting interference after it occurs.
Solution Approach 2:
The system applies preliminary anti-action by taking preventive measures against potential GNSS interference. By identifying regions where jamming or spoofing is likely to occur and routing the vehicle around these areas before entry, the system counteracts the potential harmful effects of interference before they can disrupt navigation.
2Reliability
If alternative navigation solutions are provided reactively, then operators can switch to backup methods when interference occurs, but the disruptions and cost increases cannot be avoided
Solution Approach 1:
The system provides alternative travel plans in advance by determining routes that bypass GNSS interference regions before the vehicle encounters them. This preliminary routing ensures continuous reliable navigation without requiring reactive switching to backup methods, thereby maintaining transportation efficiency.
3Reliability
If proactive dynamic avoidance mechanisms are implemented, then navigation safety is enhanced by avoiding interference regions, but system complexity increases
Solution Approach 1:
The system uses an intermediary server that handles the complex tasks of determining GNSS interference regions and calculating alternative routes. The vehicle itself only needs to receive and follow the provided travel plans, which simplifies the on-vehicle system complexity while still achieving proactive avoidance of interference regions.
Data Source
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AI summary
Techniques are disclosed for providing at least one proposed alternative plan of travel of a vehicle are disclosed based upon data of at least one geographic region about at least one of global navigation satellite system (GNSS) spoofing and GNSS jamming. If a current path of travel of the vehicle intersects at least one geographic region of at least one of GNSS spoofing and GNSS jamming, then determining the at least one proposed alternative plan of travel of the vehicle. At least one of the at least one proposed alternative plan of travel includes a path of travel that does not intersect at least one geographic region of the at least one geographic region of at least one of GNSS spoofing and GNSS jamming. The determined at least one proposed alternative plan of travel is sent to the vehicle.