Navigation System Dynamic Evaluation Interval Adjustment
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Solution Overview
Problem
Conventional navigation systems struggle to display evaluation results of a driver's fuel-efficient driving operations on a map effectively, leading to overlapping marks and reduced visibility, especially at wider map scales.
Innovation Solution
A navigation system that acquires evaluation information for predetermined distance intervals, determines the appropriate evaluation interval distance based on the map scale, and displays evaluation results at corresponding positions, ensuring proper spacing and clarity of fuel-efficient driving data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the map display range is widened (smaller scale), then more area is visible, but the interval between marks becomes smaller causing overlap and reduced visibility
Solution Approach 1:
The patent applies dynamics by making the evaluation interval distance adjustable based on map scale. When the map scale changes (zoom in/out), the system dynamically recalculates and adjusts the distance between evaluation marks to maintain optimal visibility. This resolves the contradiction by allowing the map display range to be widened while preventing mark overlap through dynamic interval adjustment.
Solution Approach 2:
The patent changes the parameter of evaluation interval distance based on map scale. By establishing a relationship between map scale and interval distance, the system adjusts the spacing parameter dynamically. When map scale decreases (wider display range), the interval distance increases proportionally, preventing mark overlap while maintaining comprehensive area coverage.
2Device complexity
If evaluation marks are displayed at fixed intervals, then display simplicity is maintained, but mark overlap occurs at wider map scales reducing user visibility
Solution Approach 1:
The system transitions from fixed to dynamic interval settings. The evaluation interval distance is no longer static but automatically adjusts based on the current map scale, maintaining display simplicity for the user while internally adapting to prevent mark overlap across different viewing conditions.
Solution Approach 2:
The patent modifies the display parameter (interval distance) based on map scale changes. By establishing a proportional relationship between these parameters, the system maintains operational simplicity while ensuring optimal mark visibility across varying display ranges through automatic parameter adjustment.
3Quantity of substance
If multiple evaluation results are displayed simultaneously, then comprehensive feedback is provided, but mark density increases causing overlap and reduced clarity
Solution Approach 1:
The system dynamically adjusts the spacing between multiple evaluation marks based on map scale. When more evaluation results need to be displayed, the interval distance increases proportionally, allowing comprehensive feedback presentation while maintaining mark separation and visibility through scale-dependent interval adjustment.
Solution Approach 2:
The patent changes the spatial parameter (interval distance) in response to both map scale and quantity of evaluation marks. This dual-parameter adjustment ensures that as more evaluation results are displayed, the marks are adequately spaced to prevent overlap, maintaining clarity while providing comprehensive driving behavior feedback.
Data Source
AI summary
Navigation systems, methods, and programs acquire evaluation information for each unit interval having a predetermined distance, the evaluation information being an index for evaluating a driver's driving operation of a vehicle, and determine based on a first scale of a map displayed on a display unit, a first distance of an evaluation interval for evaluating the driver's driving operation. The systems, methods, and programs evaluate the driver's driving operation in the evaluation interval having the first distance based on the evaluation information for each unit interval included in the evaluation interval, and display the evaluation result at a position corresponding to the evaluation interval on the map displayed on the display unit.