Navigation Junction View Signpost Highlighting
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Solution Overview
Problem
Current navigation systems face challenges in quickly and accurately guiding drivers through complex junctions, as they often require prolonged comparison between real-world signposts and displayed information, leading to potential distraction and safety risks.
Innovation Solution
The navigation system presents all real-world signposts at a junction, with the recommended signpost emphasized over others by dulling the appearance of the others, allowing drivers to quickly match the display to their surroundings and correlate spoken instructions, thereby reducing uncertainty and distraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all signposts are displayed on the navigation system, then the driver can match the display to reality, but the time required for comparison increases and driver attention decreases
Solution Approach 1:
The patent applies visual emphasis techniques where the correct signpost is highlighted through color changes, increased brightness, or other visual enhancements compared to other signposts. This allows the driver to quickly identify the relevant signpost without mentally filtering through all displayed signposts, resolving the contradiction between showing all signposts for accuracy and minimizing comparison time.
Solution Approach 2:
The patent applies different visual properties to different parts of the display - the correct signpost receives enhanced visual treatment (highlighting, color changes, brightness adjustments) while other signposts maintain normal or reduced visual prominence. This local differentiation allows comprehensive information display while guiding attention efficiently to the relevant element.
2Loss of information
If multiple signposts are displayed at complex junctions, then complete information is provided, but driver distraction increases and safety decreases
Solution Approach 1:
By using color changes and visual emphasis on the correct signpost, the system provides complete navigation information while reducing driver distraction. The highlighted signpost stands out visually, allowing the driver to quickly identify the relevant direction without being overwhelmed by multiple equally prominent signposts.
Solution Approach 2:
The system applies different visual qualities to different signposts - the correct one receives enhanced treatment while others are dimmed or de-emphasized. This maintains information completeness while directing driver attention selectively, reducing cognitive load and distraction.
3Loss of information
If all signposts are shown with equal prominence, then no information is hidden, but the correct signpost cannot be quickly identified
Solution Approach 1:
The patent uses color changes and visual emphasis to differentiate the correct signpost from others. This allows all signposts to remain visible for information completeness while the highlighted signpost can be identified immediately, resolving the contradiction between showing all information and enabling quick identification.
Solution Approach 2:
By applying enhanced visual properties locally to the correct signpost while maintaining or reducing visual properties of other signposts, the system ensures both complete information visibility and rapid identification of the relevant direction.
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
A navigation method and navigation system. The method has the following actions: a.) receiving position data from a position determining device; b.) when approaching a junction with the navigation system, displaying the junction view on a display (18). The junction view shows data as to a real - life view of the junction inclusive of an image of each signpost present on the junction as visible to a user of the navigation system; c.) receiving route information from route planning software indicating a route to be followed by the user; d.) highlighting on the display (18) a signpost related to a road segment to be followed by the user relative to all other signposts as shown on the display (18).