Navigation Arrow Display for Position and Direction Visibility
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Solution Overview
Problem
Existing navigation systems face challenges in displaying a vehicle's current position and route direction on small or elongated screens without requiring users to move their line of vision, as conventional methods often result in complicated and hard-to-see images.
Innovation Solution
A navigation system that displays a map image with a superimposed arrow indicating the current position and a forward position along the route, allowing users to check their position and direction without moving their gaze, using a base, arrowhead, and segment on a single screen, even on small or elongated displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If two screen images are displayed to show current position and direction separately, then the direction information can be clearly displayed, but the user must move their line of vision between screens and the display becomes complicated
Solution Approach 1:
The patent combines the current position display and direction indication into a single integrated arrow graphic on one screen. The arrow's base shows the current position while its arrowhead points to the forward position, allowing users to perceive both position and direction simultaneously without moving their line of vision between separate displays.
Solution Approach 2:
The arrow graphic is segmented into distinct functional parts: the base portion indicates current position, the arrowhead indicates forward position, and the segment connecting them shows the route direction. This segmentation allows each part to convey specific information while maintaining a unified visual element that eliminates the need for multiple screens.
2Area of stationary object
If a large sideways elongated display is used to show both current position and branch information, then both portions can be displayed simultaneously, but the screen portions become separated and require vision movement
Solution Approach 1:
The patent merges the current position indicator and direction guide into a single integrated arrow graphic that spans the display. This unified graphic allows users to perceive both their current location and the required direction without moving their line of vision, solving the problem of separated screen portions while maintaining comprehensive information display.
3Area of stationary object
If images are displayed on small or elongated screens following conventional methods, then the display can be compact, but the content becomes too small to see readily and direction display becomes difficult
Solution Approach 1:
The arrow graphic is divided into functionally distinct segments (base, arrowhead, connecting segment) that can be clearly rendered even on small screens. Each segment conveys specific directional or positional information, ensuring that direction visibility is maintained despite the limited screen real estate.
Solution Approach 2:
The arrow graphic employs local quality variations through different portions of the arrow (base vs. arrowhead) to convey different information types. The base indicates current position while the arrowhead indicates forward position, allowing clear differentiation of information types on a compact display without requiring additional screen space.
Data Source
AI summary
A map image showing a current position and its surroundings, a route, and an arrow are displayed and superimposed on one another. The arrow has a base indicating the current position and a length indicating a predetermined distance along the route. The arrow has the transparency adjusted to be half transparent to make the map image and route discernible. The arrow moves along with the current position as a vehicle travels on the route. When the route is rectilinear, the shape and length of the arrow do not change. When the route is turned left at an intersection, the arrowhead is turned left after reaching the intersection. Since the arrow is displayed along the route, the arrowhead is disposed on a road to which the vehicle is brought by a left turn made on a road on which the base is disposed.