Embedded RFID Tags in Cable Manufacturing for Asset Tracking

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Solution Overview

Problem

Current methods for managing and tracking physical assets in telecommunications networks are prone to errors and inefficiencies due to manual recording processes, environmental damage, and interference issues with RFID tags on curved surfaces, leading to inaccurate and incomplete records, which hinder asset location and maintenance.

Innovation Solution

A method of incorporating RFID tags between layers of flexible material in cable manufacturing, ensuring they are protected and securely attached to the cable core, allowing for accurate and durable identification and location of assets, and a system using a reader with a concave surface to enhance signal coupling for successful reading.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If RFID tags are placed on the outer surface of cables for easy reading, then accessibility for data capture is improved, but the tags are vulnerable to environmental damage and physical wear

Engineering Contradiction:
Improveaccessibility for data captureVSAvoidtag durability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The RFID tag is nested within the cable structure, specifically positioned between the core and the outer sheath. This nesting protects the tag from environmental damage while maintaining RFID signal accessibility through the cable layers.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The tag placement moves from a two-dimensional surface application to a three-dimensional integrated position within the cable cross-section. This dimensional change allows the tag to be protected by surrounding cable layers while still being accessible to readers.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If RFID tags are embedded deep within cable layers for protection, then tag durability is improved, but signal coupling and reading accuracy deteriorate

Engineering Contradiction:
Improvetag durabilityVSAvoidreading accuracy
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The cable construction is designed in advance with a designated layer or space for the RFID tag, ensuring optimal positioning for both protection and signal coupling before the cable is fully assembled and deployed.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The cable layers themselves act as intermediaries that transmit RFID signals from the embedded tag to external readers. The flexible material layers are selected to be RFID-signal transparent while providing mechanical protection.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If manual recording processes are used for asset management, then flexibility and adaptability are improved, but human error and data accuracy worsen

Engineering Contradiction:
Improveflexibility in recordingVSAvoiddata accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The system enables self-service automated asset management where RFID readers automatically capture and upload asset data to central records without requiring manual data entry by engineers, eliminating human error while maintaining operational flexibility.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Manual mechanical recording processes are replaced with automated electronic RFID reading and data upload systems. This substitution maintains the flexibility of field operations while dramatically improving data accuracy through automated capture.

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

4Measurement precision

If extensive manual verification and synchronization processes are implemented, then data accuracy is improved, but time consumption and operational efficiency worsen

Engineering Contradiction:
Improvedata accuracyVSAvoidoperational efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The RFID reading and data upload process operates continuously and automatically during normal cable installation and maintenance activities, eliminating the need for separate verification steps and maintaining constant synchronization between field operations and central records.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The system provides immediate feedback by automatically uploading RFID captured data to central records in real-time, allowing instant verification and synchronization without manual intervention, thus maintaining data accuracy while preserving operational speed.

Inventive Principle:
Principle #23Feedback

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

This approach enables automated, accurate, and efficient generation of asset records, reducing human error and improving the ability to locate assets, thereby enhancing operational efficiency and reducing costs by ensuring reliable data capture and retrieval over the asset's lifetime.

Implementation Method 1

radio-frequency identification

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP2272127B1Tagged cable
Publication Date: 2016.02.17 BRITISH TELECOM PLC
  • EP2272127B1 patent drawingFigure 1~2
  • EP2272127B1 patent drawingFigure 3
  • EP2272127B1 patent drawingFigure 4~5

AI summary

A method of forming a cable comprising an elongate core, comprising positioning a records component proximate to the elongate core, and covering the records component with a cable covering which directly or indirectly urges the records component against the elongate core.