Wind Turbine Blade Shell Marker Layer for Remote Erosion Scanning

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Solution Overview

Problem

Existing wind turbine blade shell components are difficult to inspect accurately for erosion due to manual inspection being resource-intensive and risky, and remote control cameras provide insufficiently accurate 3D images, especially under varying lighting conditions.

Innovation Solution

A wind turbine blade shell component with an outer layer and an inner layer comprising materials with different properties, allowing for accurate scanning by an image capturing device to identify erosion without manual inspection, using a pattern of reference markers for precise alignment and depth determination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual inspection is used to determine erosion of wind turbine blade shell components, then inspection accuracy can be maintained, but resource consumption increases and safety risks arise

Engineering Contradiction:
Improveinspection accuracyVSAvoidresource consumption
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent replaces manual mechanical inspection with an automated optical scanning system using image capturing devices. The system uses an inner layer with reference markers that can be automatically detected and processed by image capturing devices, eliminating the need for manual inspection while maintaining accuracy and enabling remote operation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent creates a visual copy or representation of the blade surface through the inner layer with reference markers. This inner layer acts as a readable template that captures the essential geometric information needed for erosion detection, allowing automated systems to analyze blade condition without direct physical contact or manual intervention.

Inventive Principle:
Principle #26Copying

2Ease of operation

If remote control cameras are used to inspect wind turbine blade shell components, then safety risks are reduced, but measurement precision deteriorates due to insufficient 3D image accuracy

Engineering Contradiction:
ImprovesafetyVSAvoid3D image accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent uses materials with different properties in the inner layer that create detectable visual differences. These material variations create contrast patterns that enhance the readability of the inner layer by image capturing devices, enabling accurate detection of erosion and maintaining measurement precision in remote imaging.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent modifies the optical or visual parameters of the inner layer by using materials with different properties. This creates enhanced contrast and detectability for the reference markers, allowing remote cameras to accurately capture and analyze blade surface conditions despite distance and ambient conditions.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If ambient lighting conditions vary during inspection, then ease of operation is maintained, but measurement precision deteriorates due to impact on 3D image accuracy

Engineering Contradiction:
Improveinspection convenienceVSAvoid3D image accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent uses materials with different properties that create inherent visual contrast in the inner layer. This contrast is detectable by image capturing devices and provides reliable reference markers for 3D reconstruction that are less sensitive to variations in ambient lighting conditions, maintaining measurement precision across different environmental conditions.

Inventive Principle:
Principle #32Color changes

Data Source

PatentEP4582688A1Wind turbine blade shell component
Publication Date: 2025.07.09 LM WIND POWER AS
  • EP4582688A1 patent drawingFigure 1
  • EP4582688A1 patent drawingFigure 2~3
  • EP4582688A1 patent drawingFigure 4(A)~5

AI summary

There is provided a wind turbine blade shell component. The wind turbine blade shell component comprises an outer layer and an inner layer beneath the outer layer. The outer layer covers the wind turbine blade shell component. The inner layer comprises a first material having a first property and a second material having a second property. The first property is different from the second property. The inner layer is readable by an image capturing device to determine erosion of the outer layer.