Asset Operation Recommendations Through Hidden Failure Pattern Discovery

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Solution Overview

Problem

Current systems fail to detect hidden failure patterns and associate events effectively, leading to operational challenges and high costs due to labor shortages and operational knowledge gaps in remote and harsh environments, particularly in the oil and gas industry.

Innovation Solution

A system and method for dynamic failure pattern discovery and event association using time series data analysis, including data capturing, feature extraction, and a learning system for automatic operation recommendation, utilizing a translation module to label and predict future events.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If manual task assignment is used for remote asset failures, then human decision-making can be applied, but operational redundancy increases and time is lost due to manual intervention requirements

Engineering Contradiction:
Improveautomatic operation recommendationVSAvoidtime delay from human decision requirement
Core Design Contradiction:
Extent of automationVSLoss of time

Solution Approach 1:

The system performs preliminary analysis by detecting failure patterns, associating events, and generating operation recommendations before human intervention is needed. The pattern discovery module continuously monitors asset data and pre-identifies potential failures, so when a failure occurs, the recommendation is already prepared and can be immediately implemented.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system enables self-service by automatically detecting failure patterns, classifying events, and generating operational recommendations without requiring human analysis. The machine learning models and pattern recognition algorithms perform the diagnostic and recommendation functions that would otherwise require human expertise, allowing the system to serve itself in real-time.

Inventive Principle:
Principle #25Self-service

2Measurement precision

If hidden failure patterns are not detected, then current systems can operate with simpler detection mechanisms, but failure identification accuracy remains insufficient leading to operational challenges

Engineering Contradiction:
Improvefailure pattern detection accuracyVSAvoidcomplexity of pattern discovery system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system segments the complex failure detection problem into distinct functional modules: pattern discovery module for detecting failure patterns, event association module for linking patterns to operational events, and operation recommendation module for generating actions. This segmentation allows each module to specialize in specific tasks, improving overall accuracy while managing complexity through modular architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system transitions from traditional single-dimensional failure detection to multi-dimensional analysis by examining multiple parameters simultaneously (temperature, pressure, flow rate, time) and their relationships. The pattern discovery algorithms analyze failures across different dimensions and time scales, enabling detection of hidden patterns that would be invisible in single-parameter monitoring.

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

3Reliability

If routine maintenance is performed in remote environments, then asset reliability can be maintained, but labor costs and operational overhead increase significantly

Engineering Contradiction:
Improveasset operational reliabilityVSAvoidmaintenance cost and labor requirement
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The system enables preliminary maintenance actions by detecting failure patterns and generating recommendations before actual failures occur. This allows maintenance to be scheduled proactively rather than reactively, reducing the need for emergency repairs in remote locations and enabling planned maintenance during convenient time windows, thereby reducing overall maintenance costs and labor requirements.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements continuous feedback by monitoring asset performance, detecting deviations from normal operation, and generating maintenance recommendations. This closed-loop feedback mechanism ensures that maintenance actions are based on actual asset condition data rather than fixed schedules, optimizing maintenance timing and reducing unnecessary labor costs in remote environments.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20250278326A1Asset operation recommendation based on dynamic & static event detection and pattern discovery for hidden failure analysis
Publication Date: 2025.09.04 HITACHI LTD
  • US20250278326A1 patent drawing
  • US20250278326A1 patent drawing
  • US20250278326A1 patent drawing

AI summary

Example implementations described herein involve, for receipt of time series data from sensors of one or more assets in a system, executing feature extraction on the received time series data; identifying event types from the feature extraction; identifying pairs of event type and a window of the time series data; clustering motifs of the identified pairs to update a motif dictionary; estimating a likelihood of an event from the event types based on one or more discovered motifs from the time series data and an associated time series motif of the event; using a language model to generate associated event descriptions; providing, through a user interface, the estimated likelihood of the event, the associated time series motif, sequencing of the associated time series motif, and a recommendation; and for an acceptance of the recommendation through the user interface, executing the recommendation for the one or more assets in the system.