Navigation Data Transfer Between Mobile Devices
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Solution Overview
Problem
When a group of people traveling together in different vehicles need navigation data, each vehicle must separately download the same data from its service provider, resulting in multiple data charges and potential battery issues if one device runs out of power.
Innovation Solution
A system and method for transferring navigation data between devices, where a first device packages and progressively transmits a portion of the data, including directions and a subset of map tiles, to a second device, prioritizing higher priority information like directions before lower priority data like map tiles, and excluding tiles that do not cover the route, to minimize data charges and battery consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each vehicle downloads navigation data separately from its service provider, then each device has access to complete navigation data, but multiple data charges are incurred and battery consumption increases
Solution Approach 1:
The patent implements direct peer-to-peer data transfer between mobile devices, where one device acts as a data source and another as a data recipient. This copying mechanism eliminates the need for each device to separately download navigation data from service providers, thereby avoiding multiple data charges and reducing battery consumption associated with repeated downloads while ensuring both devices have access to complete navigation data
2Reliability
If complete navigation data including all map tiles is transferred, then the receiving device has full navigation capability, but transmission time and data size increase
Solution Approach 1:
The patent segments navigation data into distinct categories: route information (directions, turns, distances) and map tiles (visual road representations). By dividing the data structure this way, the system can selectively transfer only the essential route information when speed is critical, or include map tiles when complete navigation capability is needed, thus optimizing transfer time based on specific navigation requirements
Solution Approach 2:
The patent implements optional inclusion of map tiles in the transferred data package. The route information is always transferred as it is essential for navigation, while map tiles are included only when the receiving device needs complete visual navigation capability. This partial action approach ensures minimum navigation functionality is always available while allowing enhancement with map tiles when needed, balancing transfer time and navigation completeness
3Speed
If directions are transmitted before map tiles, then critical navigation information is available immediately, but the receiving device may lack visual map context
Solution Approach 1:
The patent structures the data transfer to deliver route information (directions, turns, distances) before map tiles. This preliminary action ensures that the receiving device has critical navigation instructions available immediately for guidance, while map tiles are subsequently provided to enhance visual context. The sequence prioritizes functional navigation capability while progressively adding visual enhancement
Data Source
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AI summary
Systems and methods for transferring navigation data are provided. A system includes a map module configured to receive, at a first mobile device, the navigation data for navigating from a beginning location to a target destination. The navigation data includes at least one of the target destination, directions from the beginning location to the target destination, and map tiles covering a geographic area comprising the beginning location and the target destination. The system includes an extraction module configured to determine a portion of the navigation data, which includes at least one of the target destination, directions from a current location to the target destination, and a subset of the map tiles that cover a route from the current location to the target destination. The system includes a communications module configured to progressively transmit the portion of the navigation data from the first mobile device to a second mobile device.