Train Equipment State Evaluation via Environmental Normalization

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Solution Overview

Problem

Current systems lack the capability to effectively evaluate the state of specific train equipment at a specified time, hindering timely maintenance and performance assessment.

Innovation Solution

A train equipment management apparatus that converts environment information into comparative information to evaluate the state of specified equipment using a conversion unit and evaluation unit, allowing for assessment against reference information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If environment information is directly used to evaluate equipment state, then the evaluation reflects actual operating conditions, but the evaluation accuracy deteriorates due to environmental variations

Engineering Contradiction:

Improveequipment state evaluation accuracyVSAvoidenvironmental variation impact

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent transforms equipment state information using environment information as a parameter to generate comparative information. This allows the evaluation to account for environmental variations by converting raw state data into comparable metrics that normalize environmental impacts, thereby maintaining evaluation accuracy across different operating conditions.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent introduces comparative information as an intermediary between raw equipment state information and final evaluation results. This intermediary layer processes state information through environmental context, enabling accurate comparisons while filtering out environmental noise and variations.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If equipment state information is collected and stored for evaluation, then the evaluation capability is improved, but the system complexity increases due to data management requirements

Engineering Contradiction:

Improveequipment state measurement capabilityVSAvoiddata management system complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts only the necessary equipment state information and environment information required for evaluation, rather than managing all possible data. This selective extraction approach enables precise equipment state measurement while minimizing data management complexity by focusing only on critical parameters.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS10960908B2Train equipment management system, train equipment management method and computer readable medium

Publication Date: 2021.03.30 MITSUBISHI ELECTRIC CORP

AI summary

An extraction unit (121) determines, by using a fixed composition file, a fixed composition including a car having a specified equipment installed thereon as a fixed specified composition. The extraction unit determines, by using an operation composition file, an operation composition including the fixed specified composition as an operation specified composition. The extraction unit extracts, from an environment file, environment information corresponding to a set of a specified time and the operation specified composition. A conversion unit (122) converts, by using the environment information, state information indicating the state of the specified equipment at the specified time to comparative information indicating the state of the specified equipment in a reference environment. An evaluation unit (123) compares the comparative information with reference information. Then, the evaluation unit evaluates the state of the specified equipment at the specified time based on the comparison result.