Handheld WAND Aircraft Inspection Device Standoff Mechanism

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Solution Overview

Problem

Current methods for inspecting aircraft components, especially those closer to the ground, are often subjective and prone to variance due to reliance on visual inspection, lacking the precision and objectivity provided by drone measurements for higher areas.

Innovation Solution

A handheld inspection device (WAND) equipped with a camera, light source, and standoff mechanism, along with a processing system that can capture images, remove noise, and determine measurements, allowing for accurate assessment of aircraft components such as charge holders within canopies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If visual inspection is used for aircraft components closer to the ground, then inspection can be performed manually, but the measurements are subjective and prone to variance

Engineering Contradiction:
Improvemanual inspection capabilityVSAvoidmeasurement objectivity
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent replaces manual visual inspection with an automated handheld inspection device that uses a camera and image processing algorithms to capture and analyze aircraft components. The device includes a camera module, light source, and processor that automatically measure and record dimensions, eliminating human subjectivity and variance in measurements while maintaining ease of operation through a portable handheld form factor.

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

2Measurement precision

If drone measurements are used for higher areas, then measurement precision is improved, but the device cannot reach areas closer to the ground

Engineering Contradiction:
Improvemeasurement accuracyVSAvoidinspection coverage range
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent creates a dynamic inspection system that can adapt to different inspection scenarios. The handheld device can be used at various heights and positions, combining the precision of automated measurement with the flexibility to reach both high and low areas. The device includes adjustable components and can be maneuvered to inspect components at different elevations, providing both accuracy and adaptability.

Inventive Principle:
Principle #15Dynamics

3Measurement precision

If a handheld inspection device with constant standoff is used, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improvemeasurement accuracyVSAvoiddevice structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a constant standoff mechanism as an intermediary element between the handheld device and the aircraft component being inspected. This standoff maintains a fixed, known distance between the camera and the component surface, enabling accurate measurements without requiring complex active distance control systems. The standoff acts as a simple mechanical intermediary that provides geometric reference for measurement calculations.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Measurement precision

If image processing is performed to remove noise and determine measurements, then measurement precision is improved, but processing time increases

Engineering Contradiction:
Improvemeasurement accuracyVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent performs preliminary image processing operations during image capture and immediate post-capture processing. The device includes algorithms that automatically remove noise, enhance features, and extract measurements in real-time or near real-time. By preprocessing images with noise reduction and edge detection algorithms immediately after capture, the system achieves high measurement precision without significant time loss, as the processing occurs as part of the inspection workflow rather than as a separate step.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The WAND provides objective and precise measurements of aircraft components, reducing human error and enhancing inspection efficiency by capturing and processing images to determine distances and shapes with high accuracy.

Implementation Method 1

the light source is disposed around the camera operable to produce light in conjunction with operation of the camera

Methodology Applied
Scientific EffectLight emission: Light

Data Source

PatentUS11754507B2Workforce augmenting inspection device
Publication Date: 2023.09.12 LOCKHEED MARTIN CORP
  • US11754507B2 patent drawing
  • US11754507B2 patent drawing
  • US11754507B2 patent drawing

AI summary

In one embodiment, systems and methods include using a workforce augmenting inspection device (“WAND”) to measure a parameter of an aircraft. The WAND comprises a body, wherein the body comprises one or more buttons configured to actuate the WAND to perform one or more functions. The WAND further comprises a head comprising a camera and a light source, wherein the light source is disposed around the camera operable to produce light in conjunction with operation of the camera, wherein the camera is operable to capture an image within a scope of view of the camera. The WAND further comprises a standoff wheel, wherein the standoff wheel is operable to rotate independently of the head. The WAND further comprises a power source operable to provide power to the WAND, wherein the power source comprises a controller configured to actuate the head, camera, and light source.