Cable Temperature Display for Accurate Abnormality Diagnosis

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Solution Overview

Problem

Existing methods for diagnosing the state of submarine cables lack accuracy in identifying abnormal conditions based on temperature measurements.

Innovation Solution

A display method and diagnostic apparatus that utilize temperature measurements to display information in specific forms and formats, including changes over time, to enhance the accuracy of diagnosing cable states, utilizing a diagnostic system with a temperature measurement apparatus and display apparatus to provide clear visual indicators of cable conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If temperature measurement and display methods are simplified, then ease of operation is improved, but diagnostic accuracy deteriorates

Engineering Contradiction:
Improveease of operationVSAvoiddiagnostic accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent segments temperature information display into multiple hierarchical levels: basic temperature values, temperature change trends, abnormal condition indicators, and detailed diagnostic information. This segmentation allows operators to access comprehensive diagnostic data when needed while maintaining a clean, simple interface for routine monitoring, thus resolving the contradiction between ease of operation and diagnostic accuracy.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent adds temporal dimension by displaying temperature change trends over time alongside current temperature values. This dimensional expansion provides operators with historical context and trend information without cluttering the current state display, enabling accurate diagnostics while maintaining operational simplicity through organized multi-dimensional information presentation.

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

2Measurement precision

If comprehensive temperature information is displayed, then diagnostic accuracy is improved, but device complexity increases

Engineering Contradiction:
Improvediagnostic accuracyVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts and highlights only the most critical diagnostic information (abnormal temperature conditions, significant changes, potential issues) from comprehensive temperature data. By separating essential diagnostic indicators from raw data, the system achieves high diagnostic accuracy without requiring complex display mechanisms, as the extraction process identifies and presents only the most relevant information.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an intermediary processing layer that analyzes raw temperature measurements and transforms them into meaningful diagnostic indicators. This intermediary layer handles the complexity of data interpretation internally while presenting simplified, actionable information to operators, thus maintaining diagnostic accuracy without increasing apparent device complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If detailed temperature analysis is provided, then diagnostic accuracy is improved, but loss of time in processing increases

Engineering Contradiction:
Improvediagnostic accuracyVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent performs preliminary analysis of temperature data by continuously monitoring and pre-processing measurements in real-time. Abnormal conditions, trends, and potential issues are identified and flagged as they occur, rather than requiring comprehensive post-event analysis. This preliminary action enables rapid diagnostic accuracy without time loss, as the system is already prepared with analyzed information when operators need it.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements continuous feedback loops where temperature measurements are constantly analyzed, compared against thresholds and historical data, and results are immediately fed back to the display system. This real-time feedback mechanism provides detailed diagnostic accuracy without time loss, as the system continuously processes and presents relevant information rather than requiring batch processing or manual analysis.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4641152A1Display method, display program, and diagnosis device
Publication Date: 2025.10.29 YOKOGAWA ELECTRIC CORP
  • EP4641152A1 patent drawingFigure 1
  • EP4641152A1 patent drawingFigure 2
  • EP4641152A1 patent drawingFigure 3

AI summary

A display method includes acquiring, as a first temperature, a measured temperature value at at least one temperature measurement position of a cable (40) at a first time, displaying the first temperature at the at least one temperature measurement position, and displaying, when a position at which a first condition is satisfied based on the first temperature exists among the at least one temperature measurement position, information in a first form as information for determining whether a state of the cable is abnormal at the position at which the first condition is satisfied, the information in the first form being displayed in correspondence with the position at which the first condition is satisfied within the display of the first temperature.