Magnetic Photogrammetric Target Retaining Tape

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Solution Overview

Problem

Current photogrammetric targets often cause undesired effects on surfaces when attached or removed, and their attachment and removal processes are time-consuming, difficult, and expensive, particularly on painted surfaces.

Innovation Solution

A magnetic photogrammetric target system using a spool of retaining tape with engagement and magnetic materials for removably attaching targets to a surface, allowing robotic devices to automate the process for precise and quick attachment and removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional targets are attached to painted surfaces, then the targets can be secured in position, but the surface may be marked or damaged when targets are attached or removed

Engineering Contradiction:
Improvetarget attachment securityVSAvoidsurface damage
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a retaining member as an intermediary component between the target and the surface. This retaining member has a body with a first surface configured to hold the target and a second surface configured to be attached to the surface. By using this intermediary retaining member, the target can be securely held while the attachment mechanism can be designed to minimize surface damage, thus resolving the contradiction between secure attachment and surface protection.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If targets are removably attached to surfaces, then the targets can be removed without damaging the surface, but the attachment and removal process becomes more time-consuming and difficult

Engineering Contradiction:
Improvesurface damageVSAvoidattachment and removal time
Core Design Contradiction:
Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The patent employs magnetic fields as a substitute for traditional mechanical attachment systems. The retaining member incorporates a magnetic material that magnetically attracts the target, providing secure yet removable attachment. This magnetic mechanism allows for quick attachment and removal without complex mechanical operations, thus reducing time loss while maintaining surface protection capabilities.

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

3Ease of operation

If magnetic material is used to attach targets, then quick and easy attachment is achieved, but the retaining member becomes more complex

Engineering Contradiction:
Improveattachment easeVSAvoidretaining member complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent integrates the magnetic material directly into the body of the retaining member, merging the attachment function with the structural component. This consolidation approach allows the magnetic material to be incorporated without significantly increasing overall complexity, as the magnetic element becomes an intrinsic part of the retaining member's design rather than a separate complex mechanism.

Inventive Principle:
Principle #5Merging (Combining)

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 system enables precise, quick, and cost-effective attachment and removal of photogrammetric targets without damaging the surface, improving the accuracy and efficiency of photogrammetry processes.

Implementation Method 1

a magnetic material associated with the body and configured for use in removably attaching a magnetic target to the retaining tape

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

an engagement material associated with the body and configured for use in removably attaching the retaining tape to a surface of a structure

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentEP2910898B1Method and apparatus for removably attaching photogrammetric targets to a surface
Publication Date: 2019.08.21 THE BOEING CO
  • EP2910898B1 patent drawingFigure 1
  • EP2910898B1 patent drawingFigure 2
  • EP2910898B1 patent drawingFigure 3

AI summary

A method and apparatus for removably attaching a magnetic target for a photogrammetry system to a surface of a structure. A retaining member may comprise a body, an engagement material associated with the body, and a magnetic material associated with the body. The engagement material may be configured for use in removably attaching the retaining member to the surface of the structure. The magnetic material may be configured for use in removably attaching a magnetic target to the retaining member.