Ethernet Vehicle Node Link Error Detection
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Solution Overview
Problem
In Ethernet-based vehicle networks, detecting link errors such as synchronization and frame reception errors requires multiple algorithms, leading to increased load on communication nodes and operational complexity.
Innovation Solution
A method for a communication node to identify link status, detect synchronization errors by analyzing time differences in frames, and determine frame reception errors through sequence number continuity, allowing for simultaneous detection of link errors without the need for multiple algorithms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple algorithms are provided for detecting link failures, then detection accuracy is improved, but operational complexity and load on communication nodes increase
Solution Approach 1:
The patent combines multiple link failure detection algorithms (synchronization error detection and frame reception error detection) into a unified detection mechanism. The communication node uses a single integrated approach that simultaneously checks both synchronization status and frame reception status, eliminating the need for separate algorithm implementations and reducing operational complexity while maintaining comprehensive detection accuracy.
Solution Approach 2:
The detection mechanism is designed to perform multiple functions simultaneously: it detects synchronization errors, frame reception errors, and link failures through a single unified process. This multi-functional approach allows the communication node to maintain high detection accuracy across different error types without requiring separate specialized algorithms for each error condition.
2Reliability
If multiple algorithms are provided for detecting link failures, then detection accuracy is improved, but load on communication nodes increases
Solution Approach 1:
By merging synchronization error detection and frame reception error detection into a single integrated algorithm, the communication node reduces processing overhead and computational load. The unified detection mechanism processes both error types simultaneously rather than executing separate algorithms sequentially, thereby improving operational efficiency while maintaining comprehensive detection accuracy.
Solution Approach 2:
The detection mechanism operates continuously and simultaneously monitors both synchronization status and frame reception status without interruption or sequential delays. This continuous unified detection approach ensures high operational efficiency by eliminating the need to switch between different algorithms or pause detection for one error type while checking another.
3Reliability
If multiple algorithms are provided for detecting link failures, then comprehensive error detection is achieved, but the number of processing steps increases
Solution Approach 1:
The patent merges synchronization error detection and frame reception error detection into a single integrated processing flow. The communication node executes one unified algorithm that simultaneously evaluates both error conditions, reducing the total number of processing steps while maintaining comprehensive error detection coverage across all link failure scenarios.
Data Source
AI summary
An operation method of a first communication node in an Ethernet-based vehicle network includes identifying a link status between the first communication node and each of a plurality of communication nodes included in the vehicle network; receiving a first frame from a second communication node whose link status is normal among the plurality of communication nodes; identifying a first time difference between a local time of the first communication node and a time stamp of the first frame; and determining a synchronization error between the first communication node and the second communication node based on the first time difference.