Facility Load Analysis Using Dynamic Fluctuation Extraction

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Solution Overview

Problem

Existing methods for maintaining and managing infrastructure facilities, such as water pipelines, struggle to accurately estimate the current state of facilities due to load fluctuations over time, which are not accounted for in initial design-based sensor observation conditions, leading to inadequate maintenance and increased accident risks.

Innovation Solution

A facility state analyzing device that measures loads on infrastructure, extracts dynamic load information, determines optimal measurement conditions based on temporal transitions, and analyzes the load applied to facilities using this information to enhance estimation accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If sensor observation conditions are based on initial design information, then device complexity is reduced and ease of operation is improved, but measurement precision deteriorates due to unaccounted load fluctuations over time

Engineering Contradiction:

Improvefacility state estimation accuracyVSAvoidmeasurement condition determination

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements feedback by measuring actual load values on the facility, comparing them with design load values, and using the differences to dynamically determine measurement conditions. This feedback loop enables the system to adapt to load fluctuations over time, improving measurement precision without requiring complex predetermined measurement protocols.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent transitions from static measurement conditions based on initial design to dynamic measurement conditions that adapt to changing load characteristics. By continuously monitoring load fluctuations and adjusting measurement parameters accordingly, the system maintains high measurement precision while managing complexity through adaptive rather than predetermined configurations.

Inventive Principle:

Principle #15Dynamics

2Reliability

If measurement conditions are fixed based on design data, then ease of operation is improved, but reliability deteriorates due to inability to account for temporal load variations

Engineering Contradiction:

Improvefacility state estimation reliabilityVSAvoidmeasurement condition management

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system performs self-service by automatically determining measurement conditions based on actual measured load values. The facility itself provides the information needed to establish appropriate measurement conditions through its operational load characteristics, eliminating the need for external expert intervention to set measurement parameters while improving reliability.

Inventive Principle:

Principle #25Self-service

3Measurement precision

If continuous load monitoring is implemented, then measurement precision is improved, but loss of energy increases due to continuous data acquisition and processing

Engineering Contradiction:

Improveload measurement accuracyVSAvoidenergy consumption for data acquisition

Core Design Contradiction:

Measurement precisionVSLoss of energy

Solution Approach 1:

The patent implements periodic action by determining measurement conditions at specific intervals based on load fluctuations rather than continuous monitoring. The system measures load values, evaluates changes against thresholds, and adjusts measurement conditions periodically, reducing energy consumption while maintaining measurement precision through strategically timed assessments.

Inventive Principle:

Principle #19Periodic action

4Reliability

If dynamic load analysis is performed, then reliability is improved, but loss of time increases due to additional processing requirements

Engineering Contradiction:

Improvefacility state estimation reliabilityVSAvoiddata processing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent applies partial action by focusing analysis on dynamic load components that exceed predetermined thresholds rather than processing all load data equally. By identifying and analyzing only the significant dynamic portions of load fluctuations, the system improves reliability through targeted analysis while reducing time loss by avoiding exhaustive processing of minor variations.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS11946603B2Facility state analyzing device, facility state analyzing method, and recording medium storing facility state analyzing program thereon

Publication Date: 2024.04.02 NEC CORP

AI summary

A facility state analyzing device includes: a measurement unit that measures a load on a facility and generates, based on a measurement condition, load information representing the load being measured; an extraction unit that extracts, from the load information generated by the measurement unit, dynamic load information representing a dynamic component of the load whose dynamic fluctuation degree with a lapse of time is equal to or more than a reference; a measurement condition determination unit that determines, based on temporal transition of the dynamic load information, the measurement condition indicating a time zone during which the load information is generated; and an analysis unit that analyzes the load applied on the facility, by using the load information generated based on the measurement condition, to efficiently increase accuracy in estimating the state of the facility on the basis of a situation of the load applied to the facility.