Cable Receiving Unit with Shielded RFID Recess

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Solution Overview

Problem

Existing line receiving units face challenges in reliably transmitting data about installation environments and specifications to users, particularly due to interference from metal components that dampen electromagnetic field coupling for reading out information from embedded RFID tags or similar information carriers.

Innovation Solution

The integration of an information carrier unit within the line receiving unit, protected by a recess in the base part, which includes a shielding layer like ferrite to prevent interference from metal components, allowing communication through electromagnetic fields, and is strategically positioned to optimize data transmission and protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the base part is made of metal to provide structural strength and grounding, then mechanical strength and electrical grounding are improved, but electromagnetic field coupling for reading out information from the information carrier unit is suppressed or impaired

Engineering Contradiction:
Improvemechanical strengthVSAvoiddata transmission reliability
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The base part is segmented into a metal portion (for structural strength and grounding) and a non-metallic portion (for electromagnetic field coupling). The information carrier unit is arranged in a recess formed by the non-metallic portion, allowing electromagnetic fields to penetrate without interference from the metal while maintaining mechanical strength where needed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the base part have different material properties: the metal portion provides structural support and grounding, while the non-metallic portion (forming the recess) allows electromagnetic field coupling. This local differentiation of material quality resolves the contradiction between mechanical strength and data transmission reliability.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If the information carrier unit is arranged on the base part for easy access, then ease of operation is improved, but protection from environmental factors and metal interference is reduced

Engineering Contradiction:
Improveease of reading informationVSAvoidmetal interference and environmental exposure
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The information carrier unit is nested within a recess formed by the non-metallic portion of the base part. This nesting provides protection from environmental factors and metal interference while keeping the information carrier unit accessible from the exterior through the open recess, maintaining ease of operation.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The non-metallic portion acting as the recess structure serves as an intermediary between the metal base part and the information carrier unit. It shields the information carrier unit from metal interference while allowing electromagnetic field coupling, and provides environmental protection while maintaining accessibility.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 solution enables reliable and efficient data transmission of structural and functional information related to the cable receiving unit, ensuring accurate installation and usage, while minimizing interference from metal components, thus enhancing user accessibility and device compatibility.

Implementation Method 1

a layer or layer that shields interference from the metal, preferably ferrite, is preferably provided between the information carrier unit and the metal, which shields the electromagnetic field required for communication in the information carrier unit from the metal

Methodology Applied
Scientific EffectElectromagnetic shielding: Faraday Cage

Implementation Method 2

an antenna unit (18) for contactless communication with an antenna unit (19) of a read/write device (20) via electromagnetic field coupling

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Data Source

PatentEP2181485B1Cable receiving unit
Publication Date: 2020.03.25 LAPP ENG
  • EP2181485B1 patent drawingFigure 1
  • EP2181485B1 patent drawingFigure 2~3
  • EP2181485B1 patent drawingFigure 4

AI summary

In order to reliably and simply acquire data for a cable receiving unit for a cable strand, the cable receiving unit is associated with an information carrier unit from which information can be read out by electromagnetic field coupling.