Onboard Communication Path Selection for Load and Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing onboard communication systems do not effectively utilize multiple transmission paths, leading to inefficiencies in communication load and reliability, especially in onboard networks that require diverse communication information handling.
Innovation Solution
An onboard apparatus and communication system that selectively use different types of transmission paths (e.g., Ethernet and CAN protocols) based on the content of communication information, allowing the control unit to choose the most suitable path for transmission, thereby optimizing communication load and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple communication lines are used for transmission, then communication load is reduced, but transmission paths are not effectively utilized
Solution Approach 1:
The patent assigns different qualities/functions to different transmission paths based on their characteristics. The first transmission path (e.g., CAN bus) is optimized for normal communication operations, while the second transmission path (e.g., Ethernet) is designated for abnormal or high-priority communication. This local differentiation allows each path to be used most effectively for its intended purpose, resolving the contradiction between reducing communication load and effectively utilizing transmission paths.
Solution Approach 2:
The system dynamically switches between transmission paths based on the communication state. During normal operations, communication occurs through the first transmission path. When an abnormal state is detected (such as communication failure or high-priority messages), the system automatically transitions to use the second transmission path. This dynamic adaptation ensures optimal utilization of available transmission resources while maintaining reduced communication load.
2Reliability
If transmission path selection is based on communication information content, then reliability is improved, but device complexity increases
Solution Approach 1:
The control unit is pre-configured with knowledge of multiple transmission paths and their characteristics before actual communication occurs. The system establishes the framework for path selection in advance, defining which paths are available and under what conditions they should be used. This preliminary setup simplifies the actual decision-making process during communication, as the control unit only needs to check predefined conditions rather than analyze all possible transmission options in real-time.
Solution Approach 2:
The system changes the operational parameters of the communication system by selecting different transmission paths based on communication information content. When specific conditions are met (such as abnormal communication states or particular message types), the control unit switches from using the first transmission path to the second transmission path. This parameter change approach allows the system to maintain high reliability through context-aware path selection while avoiding excessive complexity by changing only the necessary transmission parameter rather than redesigning the entire communication architecture.
Data Source
AI summary
Provided is an onboard apparatus configured to connect to an other onboard apparatus via a first transmission path and a second transmission path, which are transmission paths of different types, the onboard apparatus comprising a control unit; and a transmission unit configured to transmit communication information to the other onboard apparatus, wherein the control unit, depending on contents of the communication information, selects at least one from among the first transmission path and the second transmission path as the transmission path to use to transmit the communication information and causes the transmission unit to transmit the communication information via a selected transmission path.