Ethernet Ring Network Route Search for Fault Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing ring networks face challenges in efficiently and stably communicating data due to complex communication between devices, requiring improved methods for route determination and fault detection.
Innovation Solution
A ring network system with synchronized communication devices using Ethernet interfaces, employing a route search frame to collect communication route information and determine traffic direction based on IEEE standards, and incorporating an abnormality detection unit for fault management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If route search frames are transmitted in both clockwise and counterclockwise directions to collect communication route information, then route determination accuracy is improved, but communication time and device complexity increase
Solution Approach 1:
The system performs route information collection in advance by transmitting route search frames before actual data communication occurs. Each communication device stores the collected route information for future use, eliminating the need for real-time route discovery and reducing communication delays.
Solution Approach 2:
The route search process is segmented into separate clockwise and counterclockwise transmissions, allowing parallel collection of route information in both directions. This segmentation enables the system to determine the optimal direction for data transmission based on pre-collected route metrics.
2Measurement precision
If route search frames are transmitted in both clockwise and counterclockwise directions to collect communication route information, then route determination accuracy is improved, but device complexity increases
Solution Approach 1:
Each communication device in the ring network is designed with multi-functionality, serving both as a data transmission node and a route information collector. The same Ethernet interfaces and processing units handle both route search frame transmission and normal data communication, eliminating the need for separate dedicated route discovery hardware.
3Reliability
If synchronized communication is implemented among all devices in the ring network, then communication stability is improved, but device complexity and synchronization overhead increase
Solution Approach 1:
The synchronization mechanism is merged into the existing Ethernet communication infrastructure. Route search frames utilize the same synchronized timing mechanism as data frames, and the central controller's arbitration logic is integrated with the ring network's natural token-passing behavior, eliminating the need for separate synchronization protocols.
Data Source
AI summary
According to one embodiment, a ring network includes a plurality of communication devices. Each of the plurality of communication devices has first and second Ethernet interfaces respectively connected to adjacent communication devices on one side and on the other side in the ring, and a host device that can transmit and receive data to and from other communication devices on the ring network using the first and second Ethernet interfaces. The plurality of communication devices includes a first communication device that transmits, in a first time period, a first frame from its second Ethernet interface in a clockwise direction and transmits a second frame from its first Ethernet interface in a counterclockwise direction.