Dynamic Map Density Adjustment for Vehicle Speed
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Solution Overview
Problem
Current mapping systems do not dynamically adjust map content based on the speed of a portable device, leading to cluttered displays during high-speed travel, which can compromise safety and user experience.
Innovation Solution
A system that generates multiple versions of map data based on speed, selecting less detailed and styled versions for higher speeds and more detailed versions for lower speeds, using a server to determine the appropriate version to send to the portable device, which can include a portable computing device with sensors to determine speed and communicate with a map version engine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If map data is displayed with high detail and information density, then the map provides comprehensive navigation information, but the display becomes cluttered during high-speed travel reducing safety and readability
Solution Approach 1:
The patent implements dynamic adjustment of map information density based on vehicle speed. The system automatically varies the level of detail displayed on the map according to the current speed of the portable device, transitioning from high-detail displays at low speeds to simplified displays at high speeds. This dynamic adaptation resolves the contradiction by making the map information density responsive to operational conditions rather than static.
Solution Approach 2:
The system changes the parameter of information density in the map display based on speed parameters. When speed increases, the system reduces information density by filtering out less critical map elements, simplifying visual presentation. When speed decreases, the system increases information density to provide more detailed navigation information, thus adapting the display characteristics to match the operational context.
2Adaptability or versatility
If multiple versions of map data are generated and stored for different speeds, then the system can optimize display for current conditions, but the device complexity and data storage requirements increase
Solution Approach 1:
The patent segments map data into multiple versions with different information densities optimized for specific speed ranges. Instead of managing one complex all-encompassing map dataset, the system divides map information into hierarchical levels of detail, where each segment is tailored for particular operational conditions. This segmentation reduces the complexity of any single map version while maintaining adaptability across different speeds.
Solution Approach 2:
The system extracts only the necessary level of map detail required for current speed conditions rather than displaying all available information. By selectively extracting and displaying only the relevant subset of map data appropriate for the current speed, the system reduces the effective data load and processing requirements while maintaining full adaptability to different operating conditions.
Data Source
AI summary
To dynamically vary map content based on the speed at which a portable device is moving, for a map in which a portable device user is following, a request for map data for a particular location is received along with an indication of the speed of the portable device. As a result, at least two versions of map data for the particular location are identified and one of the versions is selected based on the speed. The selected version is then transmitted to the portable device for display.