Risk Evaluation Device for Structures Using Stratum Data

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Solution Overview

Problem

Existing methods struggle to accurately evaluate the deterioration of structures like roads, bridges, and runways due to ground displacement, which requires different countermeasures than individual structural deterioration, and are influenced by varying ground types and conditions.

Innovation Solution

A risk evaluation device and method that acquire sensor information from structures and stratum information from the ground beneath, using this data to evaluate risks to the structure and output the results, allowing for appropriate countermeasures to be taken.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If pavement type determination is used to evaluate deterioration, then the evaluation can be automated, but the evaluation accuracy deteriorates because ground structure variations are not considered

Engineering Contradiction:

Improveautomated deterioration evaluationVSAvoiddeterioration evaluation accuracy

Core Design Contradiction:

Extent of automationVSMeasurement precision

Solution Approach 1:

The evaluation process is segmented into two independent parts: pavement type determination and ground structure determination. Each part is handled separately with appropriate methods, allowing automated processing of pavement assessment while incorporating ground structure data to improve overall evaluation accuracy without manual intervention

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Ground structure information acts as an intermediary factor that mediates between automated pavement type determination and final deterioration evaluation. The ground structure data refines and adjusts the evaluation results, enabling automated processing to maintain high accuracy despite variations in ground conditions

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If only pavement type is considered for deterioration determination, then the evaluation process is simplified, but the evaluation becomes inappropriate because ground structure variations are ignored

Engineering Contradiction:

Improveevaluation process complexityVSAvoiddeterioration evaluation appropriateness

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The evaluation system is divided into independent modules: pavement type determination module and ground structure determination module. This segmentation maintains process simplicity and automation while ensuring that both pavement and ground factors are considered for reliable and appropriate deterioration evaluation

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The evaluation system is designed to handle multiple factors (pavement type and ground structure) within a unified framework. The system can process different pavement types and ground structure combinations, providing universally applicable deterioration assessment without requiring complex case-by-case analysis

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250054122A1Risk evaluation device, risk evaluation method, and recording medium

Publication Date: 2025.02.13 NEC CORP

AI summary

This risk evaluation method comprises a sensor information acquisition means that acquires sensor information for a structure from a sensor information acquisition device, a stratum information acquisition means that acquires stratum information for the ground under the structure, a risk evaluation means that evaluates risks to the structure on the basis of the sensor information and the stratum information, and an output means that outputs the evaluated risks to the structure.