Maintenance Log Correlation for Verifying Automatic Diagnosis Use
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Solution Overview
Problem
Current maintenance management systems lack the ability to accurately detect and verify the use of automatic diagnosis results in maintenance work, leading to potential undercharging for maintenance IT companies and inefficiencies in maintenance operations.
Innovation Solution
A maintenance management system and device that include a failure information database, automatic diagnosis definition database, automatic diagnosis unit, maintenance method database, and log storage units to record and analyze diagnosis results and maintenance work, enabling the detection of automatic diagnosis result usage through a task performance analysis unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a maintenance management system uses automatic diagnosis units to improve maintenance efficiency, then maintenance work efficiency is improved, but there is no mechanism to verify whether the automatic diagnosis results are actually used, leading to potential undercharging for maintenance IT companies
Solution Approach 1:
The system implements a feedback mechanism where maintenance work logs are automatically compared against automatic diagnosis results. The task performance analysis unit continuously monitors whether maintenance actions align with diagnosed issues, creating a closed-loop verification system that confirms actual usage of diagnosis results and enables accurate billing.
Solution Approach 2:
The task performance analysis unit serves as an intermediary component that bridges the automatic diagnosis unit and maintenance work execution. It compares maintenance work logs with diagnosis results, acting as a mediator that verifies whether diagnosis outputs are actually utilized in maintenance decisions, thereby solving the verification problem.
2Measurement precision
If the system stores and compares maintenance work logs with diagnosis results to verify usage, then verification accuracy is improved, but system complexity increases
Solution Approach 1:
The task performance analysis unit performs multiple functions: it stores maintenance work logs, compares them with automatic diagnosis results, identifies correlations between diagnosed issues and actual maintenance actions, and generates verification reports. This multi-functionality reduces the need for separate dedicated components for each function, thereby limiting the increase in system complexity while maintaining high verification accuracy.
3Ease of operation
If the maintenance company creates failure diagnosis result data manually at the site, then flexibility in maintenance operations is maintained, but the ability to verify automatic diagnosis usage is lost
Solution Approach 1:
The system enables self-service verification by automatically collecting maintenance work logs from the field, comparing them with automatic diagnosis results, and generating verification reports without requiring manual intervention. This maintains the flexibility of on-site maintenance operations while simultaneously providing automatic verification of diagnosis usage, eliminating the trade-off between operational flexibility and verification capability.
Data Source
AI summary
A maintenance management system includes: a failure information DB that stores at least a failure mode for each of diagnosis target assets; an automatic diagnosis definition DB that stores diagnostic criteria for diagnosing failure modes of the diagnosis target assets; an automatic diagnosis unit that detects or predicts occurrence of a failure mode of a diagnosis target asset, based on a measurement value representing a state of the diagnosis target asset measured by a sensor and the diagnostic criteria; a maintenance method DB that stores in advance a maintenance method corresponding to a failure mode; an automatic diagnosis result log storage unit that records at least a diagnosis result by the automatic diagnosis unit and information regarding an alarm issued; and a maintenance work log storage unit that records at least a maintenance work content performed on the diagnosis target asset and includes a task performance analysis unit.