Server Road Link Information for Driving Support Adaptability
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Solution Overview
Problem
Conventional technologies face challenges in accurately determining which aspects of driving support are executable on specific roads, due to varying road conditions such as missing traffic lanes, leading to inconsistent execution of driving support functions.
Innovation Solution
A server system that communicates with vehicles to obtain support aspects executed on each road link, generates road link information associating support aspects with data, and provides this information to an information service destination, enabling the identification of executable support aspects on each road link.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If driving support is executed on roads with varying maintenance states, then the driving support system can operate on more roads, but the reliability of driving support execution deteriorates due to inconsistent support aspect executability
Solution Approach 1:
The patent segments the road network into multiple road links and further divides support aspects into discrete categories (e.g., lane keeping, speed control, intersection support). By associating each road link with specific executable support aspects, the system can selectively activate appropriate functions based on road conditions, maintaining reliability while improving adaptability.
Solution Approach 2:
The patent applies local quality by allowing different support aspects to be executable on different road links based on local road characteristics. The server stores and manages road link information that specifies which support aspects are executable on each road link, enabling the driving support device to adapt its functionality to local road conditions rather than using a uniform approach across all roads.
2Measurement precision
If the system collects and processes support aspect data from multiple vehicles, then the accuracy of road link information improves, but the device complexity increases
Solution Approach 1:
The patent introduces a server as an intermediary between multiple vehicles and the driving support devices. The server collects support aspect data from multiple vehicles, processes this information to determine executable support aspects for each road link, and stores the resulting road link information. This intermediary approach distributes the complexity away from individual vehicles while improving the accuracy of road link information through aggregated data.
Solution Approach 2:
The patent merges data from multiple vehicles by having the server collect support aspect information from various vehicles that have traversed the same road links. By combining these observations, the system builds a more accurate and comprehensive understanding of which support aspects are executable on each road link, improving measurement precision through data aggregation.
3Adaptability or versatility
If the system provides detailed road link information to information service destinations, then the usefulness of route search improves, but the loss of information increases due to data transmission requirements
Solution Approach 1:
The patent extracts only the essential and relevant information needed for route search and driving support decision-making. Rather than transmitting all raw data from multiple vehicles, the server processes this data and extracts only the critical road link information (which support aspects are executable on which road links). This extracted information is then provided to information service destinations, maintaining usefulness while minimizing data transmission overhead.
Data Source
AI summary
A server includes a support aspect obtaining unit configured to obtain, from each of a plurality of vehicles by communication, a support aspect of driving support executed by a driving support device of the vehicle on each of a plurality of road links; a road link information generation unit configured to generate road link information in which the support aspect is associated with data of the road link for each of the road links; and an information providing unit configured to provide the road link information generated by the road link information generation unit, to an information service destination.