Vehicle Navigation Data Transmission via Mobile Device Difference Extraction
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Solution Overview
Problem
Server-based vehicle navigation systems face significant data transfer challenges and excess usage fees due to the large amount of navigation data required for updating routes in response to changing traffic conditions, with existing solutions failing to minimize data transmission effectively.
Innovation Solution
The system compares traffic information from both broadcast and mobile network sources to determine if a route guidance update is necessary, transmitting only the difference data when the change exceeds a predetermined value, using a mobile communication device to send updated route data to the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traffic information is frequently transmitted to update routes in response to changing traffic conditions, then route guidance accuracy is improved, but data transmission volume increases causing excess usage fees and potential data transfer limit violations
Solution Approach 1:
The patent extracts only the essential traffic information parameters needed for route guidance updates, transmitting only the critical data elements rather than complete traffic information datasets. This selective extraction maintains route guidance accuracy while significantly reducing data transmission volume to avoid exceeding mobile network limits.
Solution Approach 2:
The traffic information is segmented into discrete, manageable data elements that can be transmitted incrementally. By dividing the traffic information into smaller segments and transmitting only necessary portions, the system maintains reliable route guidance while controlling overall data transmission volume within mobile network limits.
2Loss of information
If complete navigation data is transmitted to ensure comprehensive route guidance, then guidance completeness is improved, but transmission time increases causing delays
Solution Approach 1:
The system extracts and transmits only the essential navigation data elements required for complete route guidance, eliminating redundant information. This ensures guidance completeness is maintained while significantly reducing transmission time to avoid delays in route updates.
Solution Approach 2:
The patent performs preliminary processing of navigation data at the server端, pre-identifying and preparing only the essential data elements that need to be transmitted. This preliminary action ensures that complete guidance information is available while minimizing transmission time by avoiding unnecessary data transfer.
3Ease of manufacture
If a mobile phone is used as a communications conduit for navigation data transmission, then system cost is reduced, but data transfer limitations and fees increase
Solution Approach 1:
The patent extracts only the minimum necessary navigation data elements for effective route guidance, transmitting minimal data through the mobile phone conduit. This approach maintains the cost advantage of using mobile phones while reducing data transfer volume to avoid excessive fees and stay within carrier limits.
Solution Approach 2:
The system applies partial action by transmitting only the essential portion of navigation data required for effective route guidance, rather than complete datasets. This partial transmission maintains system cost-effectiveness using mobile phones while avoiding data transfer overage fees by staying within reasonable volume limits.
Data Source
AI summary
Systems and methods for improved vehicle navigation using mobile communication device (e.g., phone) technology as a means for transmitting vehicle route data that has been updated as a result of changed or changing traffic conditions. A mobile communication device is connected between a vehicle and a remote server. Traffic information from both broadcast and mobile network sources is analyzed by the server, a difference(s) therebetween is detected, and the difference(s) is compared to a predetermined difference value. If the detected difference exceeds the predetermined difference value, difference information is extracted and used to produce updated route data, which is then transmitted via the mobile communication device to the vehicle. The transmission of updated route data is limited to only situations where there is a sufficient change in traffic conditions, and the data transmitted is preferably limited to only difference data so as to avoid exceeding mobile communication device plan limits.