Multi-Path Network Diagnostics for Route Reconstruction Timing

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Solution Overview

Problem

Existing network diagnosis methods for mesh structures are inefficient and fail to effectively assess the time required for route reconstruction and performance changes due to failures, leading to potential information transmission interruptions and difficulty in evaluating network redundancy.

Innovation Solution

A diagnostic system and method that utilize a transmission node to send frames through multiple independent routes, with a reception node measuring arrival times and a diagnostic apparatus analyzing these times to diagnose the time required for route reconstruction and network performance changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If ring topology is used to provide redundant routes, then information transmission continuity is improved, but propagation delay time increases and system construction freedom decreases

Engineering Contradiction:
Improveinformation transmission continuityVSAvoidpropagation delay time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent segments the network topology assessment into multiple independent route analyses. Instead of treating the network as a single ring structure, it divides the analysis into individual path evaluations between transmission and reception nodes, allowing parallel processing of multiple routes without the cumulative propagation delays inherent in ring topologies.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from a single-dimension ring topology to a multi-dimensional mesh structure analysis. By evaluating networks in terms of multiple independent routes simultaneously rather than a sequential ring path, it eliminates the propagation delay accumulation problem while maintaining redundancy through dimensional expansion of the topology assessment.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If mesh topology is used for network construction, then system construction freedom is improved, but difficulty in diagnosing route reconstruction time and network performance increases

Engineering Contradiction:
Improvesystem construction freedomVSAvoiddiagnosis complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements preliminary action by pre-configuring multiple independent routes and pre-establishing diagnostic measurement points before failures occur. The system proactively measures and records baseline performance metrics for each route, enabling rapid post-failure diagnosis without the complexity of real-time analysis of multiple failing parameters.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces an intermediary diagnostic apparatus that mediates between the complex mesh network and the analysis process. This intermediary device simplifies the diagnosis by centrally collecting and processing route reconstruction time and performance data from multiple nodes, transforming the complex multi-point diagnostic problem into a manageable centralized analysis task.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If traditional network diagnosis methods are used for mesh structures, then diagnostic process simplicity is maintained, but diagnostic efficiency and accuracy decrease

Engineering Contradiction:
Improvediagnostic process simplicityVSAvoiddiagnostic efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent implements self-service by enabling the network nodes themselves to perform measurements and collect diagnostic data automatically. Each node independently measures arrival times and generates diagnostic information, eliminating the need for complex external diagnostic procedures while significantly improving diagnostic efficiency through distributed data collection.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4614929A1Diagnostic system, diagnostic apparatus, and diagnostic method in a multi-path network
Publication Date: 2025.09.10 YOKOGAWA ELECTRIC CORP
  • EP4614929A1 patent drawingFigure 1
  • EP4614929A1 patent drawingFigure 2
  • EP4614929A1 patent drawingFigure 3

AI summary

A diagnostic system for a network includes the transmission node transmitting plural frames destined for the same reception node through the plural routes regardless of whether or not a failure has occurred in part of the plural routes the reception node performing measurement of respective arrival times of the plural frames received from the same transmission node on the basis of a timer and notifying the diagnostic apparatus of a result of the measurement and the diagnostic apparatus making, on the basis of the result of the measurement, a diagnosis of: a time period required for reconstruction of a communication route in the network upon occurrence of the failure; and performance of the network after the reconstruction.