Vector Map Display System with Dual Viewpoint Segmentation
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Solution Overview
Problem
Conventional route guidance services face difficulties in displaying map information effectively for drivers, as they typically show roads and POIs from a single viewpoint, which limits visibility and clarity for drivers who need information on the right side based on their driving direction.
Innovation Solution
A vector map display method and system that allows for two viewpoints - a bird's eye view and a side view - enabling the adjustment of map and POI sizes based on the driving direction, with the ability to change and adjust these views dynamically according to user input, ensuring clearer visibility of relevant information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If map information is displayed based on one viewpoint, then the display is simple and consistent, but the visibility and clarity of roads and POIs on the right side for drivers is insufficient
Solution Approach 1:
The map display is segmented into multiple viewpoint layers: a first viewpoint showing a bird's-eye view of the entire route, and a second viewpoint showing a driver's perspective with enhanced visibility of roads and POIs on the right side. This segmentation allows each layer to serve its specific function while together they provide comprehensive information.
Solution Approach 2:
The patent adds a dimensional aspect to the map display by introducing multiple viewpoint perspectives. Instead of a single flat 2D representation, the system provides both an overhead bird's-eye view and a ground-level driver's view, effectively adding a perceptual dimension that improves visibility of critical information.
2Adaptability or versatility
If conventional single-viewpoint map display is used, then the system is simple to implement, but it cannot satisfy driver needs for information on the right side based on driving direction
Solution Approach 1:
The second viewpoint display applies local quality enhancement by specifically improving the visibility and detail of roads and POIs located on the right side of the driving direction. This localized enhancement ensures that critical information in the driver's peripheral vision area is more prominent without overwhelming the entire display.
Solution Approach 2:
The system dynamically switches between the first viewpoint (bird's-eye) and the second viewpoint (driver's perspective) based on the driver's needs and driving conditions. This dynamic adaptability allows the display to respond to changing requirements while maintaining system simplicity through automated viewpoint selection.
3Ease of operation
If two viewpoints are introduced to improve visibility, then driver needs are better satisfied, but the display system becomes more complex
Solution Approach 1:
The system performs preliminary action by pre-defining and storing multiple viewpoint configurations (first viewpoint for bird's-eye view, second viewpoint for driver's perspective) with their respective display parameters. This preliminary setup allows the system to quickly switch between viewpoints without complex real-time calculations, reducing operational complexity.
Solution Approach 2:
The patent creates a universal display framework that can accommodate multiple viewpoint types and can be applied to various map display scenarios. This multi-functional viewpoint system serves both navigation overview needs and real-time driving information needs within a single unified display mechanism.
Data Source
AI summary
A vector map display method executed by a user terminal device may include: a web vector map display viewpoint change step of changing a viewpoint of a web vector map according to the directions of previously stored first and second viewpoints; a background or POI information extraction step of extracting a background or one or more pieces of POI information corresponding to a current position of the user terminal device from data of the web vector map by reflecting the first and second viewpoints; a size ratio adjusting step of adjusting the size ratio of the extracted background or POI information; a current web vector map data generation step of generating data of the current web vector map corresponding to the current position; and a current web vector map display step of displaying the data of the current web vector map.