Dynamic Map Data Density Adjustment for Wireless Devices
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Solution Overview
Problem
Current mapping technologies on wireless communications devices download and display maps using static thresholds, leading to overcrowding in urban areas and loss of detail in rural areas due to uniform application of criteria across different geographical densities.
Innovation Solution
A method for dynamically downloading map data based on map data density, allowing for more detailed maps in rural areas without overcrowding urban areas, optionally adjusting downloads based on device velocity and signal strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If static threshold criteria are used for downloading map data uniformly across all areas, then device bandwidth and processing resources are conserved, but map detail is lost in rural areas and urban areas become overcrowded
Solution Approach 1:
The patent implements dynamic threshold adjustment based on geographical area characteristics. The system automatically modifies download thresholds in real-time according to whether the current location is urban or rural, transitioning from static to dynamic control to optimize map data density appropriately for each environment.
Solution Approach 2:
The patent applies different download thresholds to different geographical regions. Urban areas use one threshold setting while rural areas use another, allowing each location to receive appropriate map data density rather than applying a uniform standard across all areas.
2Quantity of substance
If high-resolution map data is downloaded to all areas, then map detail is improved, but wireless bandwidth is excessively consumed and device storage is overwhelmed
Solution Approach 1:
The patent changes the parameter of download threshold based on geographical context. By adjusting this parameter dynamically according to area type (urban vs. rural), the system optimizes bandwidth consumption while maintaining appropriate map detail levels for each location.
3Loss of information
If detailed map data is downloaded to rural areas, then geographical context is improved, but device processing capability is exceeded
Solution Approach 1:
The patent tailors map data download quality to local geographical characteristics. Rural areas receive enhanced geographical context while urban areas receive optimized data sets, allowing each region to benefit from appropriate detail levels without overwhelming device processing capabilities.
Data Source
AI summary
Dynamically downloading map data to a wireless communications device is achieved by determining a map data density for an area of interest and then dynamically downloading and optionally also dynamically displaying the map data for the area of interest based on the map data density. For areas of interest with low map data density, this technology has the effect of downloading more map data so that the map is displayed with more detail than would conventionally be obtained. Conversely, for areas of interest with excessively high map data density, dynamic downloading and display can reduce the onscreen map density for a less crowded map.