Vehicle Disaster Map Display With Dual-Scale Navigation Views
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Solution Overview
Problem
Existing information display devices for vehicles struggle to effectively convey the scale of a disaster-stricken area and surrounding road information, leading to difficulties in user understanding and navigation.
Innovation Solution
An information display device that acquires disaster information and generates two images: a narrow-area map showing the vehicle's surroundings and a wide-area map displaying the disaster-stricken area, with a display control unit presenting these images side by side or separately based on user settings and vehicle proximity to the disaster area, optimizing the display for guidance and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the target area of the disaster area is displayed on the map, then the user can understand the orientation of the disaster area, but the scale of the map decreases and it becomes difficult to understand the roads around the vehicle
Solution Approach 1:
The patent divides the map display into two separate images: a first image showing the vehicle position and orientation relative to the disaster area, and a second image showing the detailed roads around the vehicle. This segmentation allows each image to serve its specific purpose without compromising the other's quality or scale.
Solution Approach 2:
The patent transitions from a single two-dimensional map view to a multi-dimensional display by showing multiple images simultaneously at different scales. The first image provides contextual disaster area information while the second image provides detailed local road information, effectively adding a dimensional layer to the information presentation.
2Measurement precision
If only the orientation of the disaster area is displayed, then the map scale is maintained, but it is difficult for the user to grasp the scale of the disaster
Solution Approach 1:
The patent segments the information display into two distinct images: the first image specifically shows the disaster area scale and orientation, while the second image maintains the proper map scale for navigation. This allows the disaster scale information to be preserved without compromising the navigational map scale.
Solution Approach 2:
The patent merges two different types of information that previously conflicted when displayed together. By combining the disaster area overview (showing scale) with the detailed road map (maintaining scale) in a single dual-image display, both information types can coexist without compromising each other's quality.
3Loss of information
If both narrow-area map and wide-area map are displayed side by side, then the user can understand both road information and disaster scale, but the device complexity increases
Solution Approach 1:
The patent makes the display unit multi-functional by enabling it to show different types of map information simultaneously. The same display hardware can present both the narrow-area map for navigation and the wide-area map for disaster assessment, eliminating the need for separate display devices or systems.
Solution Approach 2:
The patent implements dynamic control of the display, where the display control unit can adjust which images are shown, their sizes, and their positions based on user settings and vehicle proximity to the disaster area. This dynamic adaptability allows the system to maintain simplicity by showing only the necessary information in each context.
Data Source
AI summary
An information display device is provided, which includes at least one processor, the at least one processor being configured to: acquire disaster information corresponding to a current position of a vehicle; generate a first image displaying the current position of the vehicle on a narrow-area map of vehicle surroundings; generate a second image displaying an entirety of a disaster-stricken area identified from the disaster information and the current position of the vehicle on a wide-area map of vehicle surroundings; and effect adjacent display of the first image and the second image at a display unit provided inside a vehicle cabin.