Proxy Device for Bandwidth-Efficient Map Data Communication
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Solution Overview
Problem
Current mobile electronic devices are inefficient in communicating with each other due to limited bandwidth in communication channels, hindering the effective transfer of mapping application data between devices.
Innovation Solution
A first electronic device acts as a proxy or navigation server for a second device, receiving requests for map data, generating complete requests, and transmitting data between the second device and a map server, with subsequent route updates being transmitted in a reduced form to conserve bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If devices communicate directly with the map server, then communication simplicity is maintained, but communication efficiency deteriorates due to limited bandwidth
Solution Approach 1:
A first electronic device acts as a proxy between a second electronic device and a map server. The proxy device receives requests from the second device, generates complete requests with supplemental data, transmits them to the map server, and forwards the responses back. This intermediary approach optimizes bandwidth utilization and reduces power consumption for the second device.
Solution Approach 2:
The first electronic device pre-fetches map data and maintains a local cache. When the second device needs map data, the first device can provide it from its cache or pre-process requests, reducing the frequency and volume of communications over the limited-bandwidth channel between the second device and the map server.
2Reliability
If complete map data is transmitted frequently, then data accuracy is maintained, but bandwidth consumption increases
Solution Approach 1:
The system extracts and transmits only the essential or changed portions of map data rather than complete datasets. The proxy device determines supplemental data needs and transmits only what is necessary to maintain data accuracy, reducing overall transmission volume.
Solution Approach 2:
Different parts of the map data are handled differently based on their importance and change frequency. Critical route information is transmitted with high accuracy, while less critical areas use compressed or differential updates, optimizing the balance between data accuracy and transmission volume.
3Measurement precision
If detailed route information is provided, then navigation precision is improved, but communication time increases
Solution Approach 1:
The first electronic device pre-processes and prepares route data in advance, organizing it into optimized formats. When navigation is needed, the pre-processed data can be transmitted more quickly, maintaining precision while reducing transmission time.
Solution Approach 2:
Route data is segmented into critical navigation elements and optional detailed elements. The system transmits essential routing information first to enable immediate navigation, with additional detailed information transmitted asynchronously or on-demand, reducing initial transmission time while maintaining navigation precision.
Data Source
AI summary
The present disclosure relates to systems and processes for efficiently communicating mapping application data between electronic devices. In one example, a first electronic device can act as a proxy between a second electronic device and a map server by receiving a first request for map data from the second user device, determining a set of supplemental data to add to the first request to generate a complete second request for map data, and transmitting the second request to a map server. The first electronic device can receive the requested map data from the map server and transmit the received map data to the second electronic device. In another example, the first electronic device can act as a navigation server for the second electronic device by initially transmitting a full set of route data to the second electronic device and subsequently transmitting route update messages to the second electronic device.