Unified Aircraft Navigation Database for Flight and Ground Phases
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Solution Overview
Problem
Current aircraft navigation systems cause discontinuity between flight and ground phases, leading to increased pilot workload due to the need to switch between different databases and displays, resulting in potential divergences between crew members and temporary loss of information.
Innovation Solution
A system with a global navigation database that performs contextualized filtering of information based on aircraft and environmental parameters, integrating air and airport navigation data onto a single display screen, reducing the need for pilots to switch between multiple sources and enhancing continuity in trajectory management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate databases (FMS and OANS) are used for flight and ground navigation, then each system can be optimized for its specific function, but discontinuity and information loss occur during phase transitions
Solution Approach 1:
The patent merges the FMS and OANS databases into a single unified navigation database that contains both flight navigation data and ground navigation data. This integration eliminates the discontinuity between flight and ground phases by providing a continuous trajectory representation, while the system maintains functional separation through contextualized filtering that selects appropriate data based on current flight phase.
2Loss of information
If pilots use multiple separate displays and databases, then comprehensive navigation information is available, but pilot workload increases due to switching between sources
Solution Approach 1:
The unified navigation database serves multiple functions by storing both flight navigation data (FMS) and ground navigation data (OANS, maps, procedures) in a single structure. The contextualized filtering mechanism automatically selects and presents the appropriate information based on the current flight phase, allowing pilots to access all necessary navigation information from a single source without increasing workload.
3Quantity of substance
If navigation maps and documents are stored in EFB or flight bags, then pilots have access to comprehensive data, but time is required to locate and switch between different information sources
Solution Approach 1:
The system performs preliminary organization of all navigation data (maps, procedures, airport information, flight plans) within the unified database structure before the pilot needs to access them. The contextualized filtering automatically retrieves the relevant information based on the current flight phase, eliminating the need for pilots to manually search through flight bags or EFB devices for specific information.
Data Source
AI summary
A system including at least one global navigation database including data for aerial navigation and airport navigation of the aircraft and data mentioned on navigation maps, a central unit for carrying out a contextualized filtering of data intended for a display and received, at least in part, from said navigation database, and a display device for carrying out the display on one and the same screen, said display being based on information from said contextualized filtering.