Server Focusing Factor for Location Reference Decoding
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Solution Overview
Problem
Current methods for transmitting dynamic location references, such as traffic jams or road closures, face challenges in ensuring accurate decoding across different map versions and vendors, leading to inefficiencies and increased computational load, especially in smaller devices like portable navigation devices.
Innovation Solution
The method involves computing a focusing factor at a server based on encoded location reference information and enhancing it for transmission to remote devices, which then use this factor to reduce the search area and filter nodes during path reconstruction, improving decoding speed and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If location reference information is transmitted without enhancement, then transmission simplicity is maintained, but decoding speed and accuracy deteriorate due to increased computational load
Solution Approach 1:
The patent applies preliminary action by computing the focusing factor at the server before transmission. The server performs path computations and determines optimal search areas in advance, then transmits these pre-computed parameters to remote devices. This eliminates the need for remote devices to perform complex path computations, directly improving decoding speed while maintaining simplicity at the remote device level.
2Measurement precision
If comprehensive location information is transmitted, then decoding accuracy is improved, but transmission data volume and processing time increase
Solution Approach 1:
The patent extracts only the essential focusing factor parameters needed for accurate decoding, rather than transmitting complete path information. The focusing factor captures the critical search area characteristics, allowing remote devices to reconstruct paths accurately with minimal data. This extraction approach maintains high decoding accuracy while significantly reducing transmission data volume and processing time.
3Adaptability or versatility
If path computation is performed at remote devices, then location reference can be decoded independently, but computational load and energy consumption increase
Solution Approach 1:
The patent applies preliminary action by pre-computing path information and search area parameters at the server before transmission. Remote devices receive these pre-computed focusing factors and use them to quickly reconstruct paths with minimal local computation. This maintains decoding independence at remote devices while dramatically reducing their computational load and energy consumption.
Data Source
AI summary
A method and system are disclosed. In at least one embodiment, the method includes at least one of obtaining and receiving information regarding at least one location reference at a server (302) for transmission to at least one remote device; determining at least one path of the at least one location reference corresponding to at least one pair of points within mapping information at the server (302); computing at least one focusing factor at the server (302) based upon encoded information corresponding to the determined at least one path of the at least one location reference, and enhancing the at least one location reference by the computed at least one focusing factor; and transmitting the at least one location reference enhanced by the computed at least one focusing factor from the server (302) to the at least one remote device.