RF Interference Database for Vehicle Navigation Planning
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Solution Overview
Problem
Vehicles face significant risks due to radio frequency (RF) signal interference, which can disrupt critical systems like altimeters, guidance systems, and communications, potentially leading to catastrophic failures during navigation and flight.
Innovation Solution
A centralized RF interference database is created to gather and store RF signal characteristics from various geographical locations, providing real-time information on potential interference zones. This data is then disseminated to vehicle operating systems to help plan travel paths that avoid or mitigate RF interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicles rely on RF signal transmissions for navigation and communication, then vehicle operations and communications can be maintained, but the vehicle systems are vulnerable to destructive interference from external RF sources
Solution Approach 1:
The system performs preliminary actions by gathering RF signal characteristics and identifying interference zones before the vehicle reaches them. The database stores pre-analyzed RF interference data for multiple geographical locations, allowing the vehicle to receive advance warnings and adjust its travel path proactively rather than reactively when interference is detected
Solution Approach 2:
The patent introduces an intermediary processing system that acts as a mediator between the vehicle and external RF environments. This system gathers RF signal characteristics, analyzes interference patterns, stores data in a database, and disseminates processed information to the vehicle's operating system, shielding the vehicle from direct exposure to complex RF interference scenarios
2Reliability
If the vehicle adjusts its travel path to avoid RF interference zones, then system protection is improved, but additional time and computational resources are required for path planning and adjustment
Solution Approach 1:
The system pre-processes RF interference data for multiple geographical locations and stores it in a database before the vehicle needs it. By gathering RF signal characteristics and identifying interference zones in advance, the system eliminates the need for real-time analysis during critical moments, reducing the time required for path adjustments
Solution Approach 2:
The patent creates a copied representation of the physical RF environment by gathering and storing RF signal characteristics in a database. This digital copy of interference zone information allows the vehicle's operating system to quickly query and process path planning decisions without performing complex real-time RF analysis, significantly reducing computational time
3Measurement precision
If a centralized RF interference database is created and maintained, then interference information accuracy is improved, but system complexity and data management requirements increase
Solution Approach 1:
The patent creates a universal RF interference database that serves multiple functions: storing RF signal characteristics, identifying interference zones, providing navigation assistance, and supporting multiple vehicle operating systems. This single multi-functional database reduces overall system complexity compared to having separate systems for each function
Solution Approach 2:
The database acts as an intermediary layer that simplifies data management by centralizing RF interference information. Instead of each vehicle system independently gathering and managing RF data, the centralized database mediates all data access, reducing the computational burden and complexity on individual vehicle systems while maintaining high data accuracy
Data Source
AI summary
An RF interference database provides RF signal characteristics associated with a plurality of geographical locations. A travel planning system on a vehicle or other processing system can disseminate data including the RF signal characteristics to multiple operating systems on at least one vehicle in a network. Disseminating data can include generating a report sent to the operating system(s), generate threat levels and/or alerts based on the severity of RF interference in the geographical location, provide a system use recommendation on operating parameters and/or alternative operating systems for use in the geographical location. A vehicle can also take ameliorative action, such as modifying a travel path based on data disseminated from the RF interference database and/or conduct integrity checks on the operating systems.