Aircraft Navigation Display Correlating Dynamic Data with 4D Trajectory
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Solution Overview
Problem
Current navigation systems for aircraft struggle to effectively manage and display dynamic aeronautical information, particularly 4D flight trajectories, as they require manual correlation and filtering of disparate data, leading to complexity and inefficiency in managing time-dependent weather and flight plan changes.
Innovation Solution
A method for correlating spatio-temporal information with a 3D+time trajectory, using sensors, a spatio-temporal trajectory processor, and data processing units to automatically and manually filter information, displaying meteorological and geographical data on a single screen with adjustable time windows, allowing for coherent and intuitive representation of dynamic aeronautical information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual correlation and filtering of dynamic aeronautical information is used, then information can be processed, but complexity and inefficiency increase
Solution Approach 1:
The system automatically correlates dynamic aeronautical information with the 4D flight trajectory without requiring manual intervention. The processor self-manages the correlation of weather data, NOTAMs, and flight plan modifications by automatically determining aircraft position, time, and altitude to retrieve and display relevant information
Solution Approach 2:
The patent replaces the manual mechanical process of correlating information with an automated electronic system. The processor uses computational algorithms to correlate spatio-temporal information with the flight trajectory, substituting human mental visualization and manual calculations with automated data processing and display
2Measurement precision
If multiple weather charts are crossed manually to correlate with flight plan, then accurate weather information can be obtained, but the work becomes complex
Solution Approach 1:
The system merges multiple weather charts and data sources into a single integrated display correlated with the 4D flight trajectory. Instead of requiring the crew to manually cross-reference multiple charts, the processor combines weather data, NOTAMs, and flight information into one coherent visualization that updates automatically as the aircraft progresses along its trajectory
Solution Approach 2:
The patent adds the time dimension to the traditional 2D weather charts by correlating them with the 4D flight trajectory. This transforms static weather maps into dynamic spatio-temporal representations that show weather conditions along the entire flight path, including future positions, allowing the crew to see weather evolution over time without manual chart cross-referencing
3Loss of information
If dynamic aeronautical information is displayed without time correlation, then information is available, but coherence and accuracy decrease
Solution Approach 1:
The system performs preliminary correlation of dynamic information with the 4D flight trajectory before display. The processor pre-calculates and organizes weather data, NOTAMs, and other aeronautical information according to the aircraft's predicted position, time, and altitude, so that when the information is displayed, it is already coherent and accurately timed without requiring real-time manual adjustment
Data Source
AI summary
A method for assisting the navigation of an aircraft comprises: assembly by families of data by a processing unit of predetermined data and acquired data, including meteorological data, the families being predefined, each data value being associated with a time window of validity; formatting the data of the families to associate with each data value a type of graphical representation as text or a scalar, vector, surface, or volume; selection of families of data to be displayed; choice of a display time window for each family of data to be displayed; spatio-temporal discretization of the trajectory; spatio-temporal correlation of the discretized trajectory with each family of data as a function of the time windows of validity, in the display time windows of the family, to extract a sub-assembly from each family of data, by the processing unit; display of the sub-assemblies in a single representation on the same display screen.