In-Vehicle Relay Management for Selective Frame Processing
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Solution Overview
Problem
Conventional in-vehicle communication systems face inefficiencies in frame relay processes, necessitating a technology that can enhance the relay process efficiency in in-vehicle networks.
Innovation Solution
A relay device and in-vehicle communication system that includes a relay unit for performing a relay process for frames transmitted and received between function units, and a relay management unit that determines setting changes in the relay process based on information from the target frames, including identifiable request sources and service contents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a relay process is performed for all frames transmitted between function units, then communication coverage is ensured, but communication efficiency deteriorates due to unnecessary processing of non-service-related frames
Solution Approach 1:
The patent applies local quality by differentiating the relay process based on frame type. Service-related frames (containing service identifiers) receive detailed processing with setting change determination, while non-service frames receive standard relay processing. This selective approach optimizes efficiency by applying complex processing only where necessary, rather than uniformly to all frames.
Solution Approach 2:
The patent implements dynamics by making the relay process adaptive based on frame content. The relay management unit dynamically determines whether to perform setting change determination based on whether the frame contains service-related information. This dynamic adjustment allows the system to optimize processing intensity according to real-time communication needs.
2Reliability
If setting change determination is performed for all received frames, then communication security is improved, but device complexity increases due to additional processing requirements
Solution Approach 1:
The patent applies local quality by implementing security checks selectively only for service-related frames that contain identifiable service content. Non-service frames bypass the complex setting change determination process. This approach maintains security for critical service communications while avoiding unnecessary complexity for routine non-service traffic.
Solution Approach 2:
The patent implements dynamics by making the security determination process adaptive. The relay management unit dynamically assesses each service-related frame to determine if setting changes are needed, rather than applying uniform security processing to all frames. This reduces overall system complexity while maintaining security where required.
3Measurement precision
If service-oriented communication is implemented with identifiable request sources and service contents, then communication precision is improved, but device complexity increases due to additional frame information requirements
Solution Approach 1:
The patent applies preliminary action by pre-defining service identifiers and their associated settings in the relay management unit. When a service-related frame is received, the system already has the necessary service information and corresponding settings prepared, enabling quick matching and determination without complex real-time analysis. This reduces processing complexity while maintaining high identification accuracy.
Data Source
AI summary
Provided is a relay device including: a relay unit configured to perform a relay process for a frame transmitted and received between the function units; and a relay management unit. The relay unit receives, from a function unit, a target frame which is transmitted and received according to a predetermined communication protocol and includes information with which a request source of a service is identifiable and information with which a content of the requested service is identifiable, duplicates target data which is at least a part of the received target frame, outputs the duplicated target data to the relay management unit, and relays the received target frame to another function unit. The relay management unit performs determination regarding setting change in the relay process of the relay unit, on the basis of the target data received from the relay unit.