In-Vehicle Ethernet Switch Operability Check
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Solution Overview
Problem
Conventional SDN technology faces challenges in user convenience due to situations where SDN switches are unable to operate according to new network settings after changes, such as software activation or ECU additions, occur in a user-unaware state.
Innovation Solution
A communication control device that includes a reception unit for receiving change notifications related to network settings, a determination unit to assess the operability of switching control units according to new settings, and an inquiry unit to prompt users for confirmation before reflecting new settings, thereby preventing operational issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network settings are changed automatically without user awareness, then system adaptability is improved, but system reliability deteriorates because switching control units may become inoperable
Solution Approach 1:
The determination unit performs preliminary verification of switching control unit operability before the settings change is applied. This advance checking prevents the unit from becoming inoperable by ensuring compatibility with new network settings before the change takes effect.
Solution Approach 2:
The inquiry unit provides feedback to the user about the determined operability status and seeks confirmation before applying settings changes. This feedback mechanism allows users to be informed and make decisions, preventing unintended inoperability while maintaining system adaptability.
2Ease of operation
If network settings are changed in user-unaware state, then ease of operation is improved, but device complexity increases due to verification and inquiry mechanisms
Solution Approach 1:
The determination unit automatically performs self-verification of switching control unit operability without requiring user intervention. This automated self-checking maintains ease of operation by eliminating manual verification steps while the inquiry unit only activates when needed.
3Reliability
If operability determination is performed before settings reflection, then system reliability is improved, but loss of time occurs due to additional verification steps
Solution Approach 1:
The operability determination is performed as a preliminary action before settings are reflected, ensuring reliability by catching potential inoperability issues early. This preliminary check prevents wasted time on failed settings changes by identifying problems before they occur.
Data Source
AI summary
A central ECU serving as a communication control device includes a reception unit that receives a change notification related to a change in a communication setting of an in-vehicle network, a determination unit that determines whether or not an Ethernet switch connected to the communication control device is operable according to new settings information needed to accompany the change notification, and an inquiry unit that prompts a user to indicate whether or not to reflect the settings information in the Ethernet switch in cases in which the Ethernet switch has been determined to be operable according to the settings information.