Tidal Current Display Apparatus Time Scale Visualization
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Solution Overview
Problem
Current systems fail to effectively display the changing tidal current information over time, making it difficult for marine vessel navigators to optimize their course and navigate safely through areas with varying tidal currents.
Innovation Solution
A tidal current information display apparatus and augmented reality navigation system that receive and generate indicators with a time scale, positioning symbols to represent predicted tidal current directions at different time instants, allowing for intuitive visualization of tidal current changes on a display screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional tidal current information display methods are used, then the display system is simple, but it is difficult to visually grasp changes in tidal current direction and speed over time
Solution Approach 1:
The patent introduces a time scale dimension perpendicular to the chart plane, transforming 2D spatial display into a 3D visualization where the vertical axis represents time. This allows tidal current information at multiple time instants to be displayed simultaneously without overlapping, enabling navigators to visually grasp temporal changes while maintaining a relatively simple display system.
Solution Approach 2:
The patent segments tidal current information by time instants, displaying each time point's current direction and speed as separate symbols along the time scale. This segmentation prevents information overlap and confusion, allowing clear visualization of how tidal currents change over time without requiring complex temporal animations or transitions.
2Loss of information
If tidal current information at multiple time instants is displayed on the same screen, then complete temporal information is provided, but the display becomes complicated and difficult to interpret
Solution Approach 1:
By adding the vertical time scale dimension, the patent organizes multiple time instants in a structured vertical sequence rather than scattering them across the horizontal chart plane. This dimensional organization makes temporal patterns easily traceable and interpretable, as navigators can follow the vertical progression to understand how currents evolve over time.
Solution Approach 2:
The patent applies different visual characteristics to symbols at different positions on the time scale, with each symbol's orientation indicating current direction and its position indicating time instant. This localized visual encoding allows navigators to quickly interpret specific temporal information without being overwhelmed by the entire dataset, improving visual interpretation ease.
Data Source
AI summary
A tidal current display data generation apparatus for a movable body, for displaying tidal current information on a display screen, includes a tidal current information receiving terminal configured to receive tidal current information including a position of a tidal current on a chart of a region including the movable body, and a plurality of predicted tidal current directions of the tidal current at the position at a corresponding plurality of time instants, and a tidal current display data generation terminal configured to generate an indicator including a time scale determined according to the plurality of time instants, determine position of each predicted tidal current direction on the time scale at respective time instant, generate a plurality of symbols for respective positions on the time scale, each symbol indicating respective predicted tidal current direction at respective time instant, and output the indicator including the plurality of symbols to the display screen.