Modular RFID Tunnel Shielding for Flexible Installation

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Solution Overview

Problem

Existing RFID reading tunnels are expensive, time-consuming to install, and inflexible due to individual customization, requiring extensive engineering and assembly, making them difficult to adapt to changing conditions or transport efficiently.

Innovation Solution

A modular RFID reading tunnel design using standardized modules that can be easily assembled and reconfigured, featuring interchangeable connecting elements and optional additional modules for varied functionality, allowing for flexible adaptation and reduced installation and transportation costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If individual customization is used for each RFID reading tunnel, then the electromagnetic shielding conditions are optimized for specific applications, but the manufacturing cost and installation time increase significantly

Engineering Contradiction:
Improveelectromagnetic shielding conditionsVSAvoidmanufacturing cost and installation time
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The reading tunnel is divided into multiple standardized modules that can be individually manufactured and then assembled in different configurations. Each module contains standardized electromagnetic shielding components, allowing the tunnel to be customized for different applications while using pre-fabricated units, thereby reducing both manufacturing cost and installation time while maintaining optimized shielding conditions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Standardized modules are designed with universal interfaces and standardized electromagnetic shielding characteristics that can be used across different reading tunnel applications. The same module type can serve multiple functions in different configurations, reducing the need for custom manufacturing while maintaining application-specific optimization through modular arrangement.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If individual customization is used for each RFID reading tunnel, then the specific application requirements are met, but the adaptability to changing conditions decreases

Engineering Contradiction:
Improveapplication-specific optimizationVSAvoidadaptability to changing conditions
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

By segmenting the reading tunnel into standardized modules, the system gains flexibility to reconfigure existing modules for new applications without requiring complete custom manufacturing. Modules can be added, removed, or rearranged to adapt to changing conditions while maintaining the electromagnetic shielding characteristics needed for reliable RFID operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The modular design enables dynamic reconfiguration of the reading tunnel system. Standardized modules with universal interfaces allow the system to be easily adapted to new applications or changing requirements by simply rearranging or replacing modules, providing both application-specific optimization and future adaptability.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If large reading tunnels are constructed to accommodate all types of luggage or packages, then all objects can be conveyed through, but the assembly requires many people or lifting devices

Engineering Contradiction:
Improveaccommodation of all object typesVSAvoidassembly complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The large reading tunnel is constructed from multiple smaller standardized modules that can be manufactured and handled individually. This segmentation allows modules to be transported and assembled without requiring heavy lifting equipment or large crews, as each module is of manageable size while the complete assembly still accommodates all types of luggage or packages.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Standardized modules are designed with universal connection interfaces and standardized dimensions that allow them to be assembled into large reading tunnels capable of accommodating all object types. The modular approach enables complex large-scale structures to be built from simple, easily handled components, reducing assembly complexity while maintaining versatility.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Ease of manufacture

If standardized modules are used for the RFID reading tunnel, then the manufacturing cost and installation time are reduced, but the customization for specific applications is limited

Engineering Contradiction:
Improvemanufacturing cost and installation timeVSAvoidcustomization for specific applications
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The reading tunnel is divided into standardized modules that can be manufactured using uniform processes, reducing manufacturing cost and installation time. Despite the standardization of individual modules, the system achieves application-specific customization through different modular configurations, arrangements, and combinations of modules to meet specific reading requirements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Standardized modules are designed with universal characteristics that enable them to be used in multiple application contexts. The same module type can be configured differently to serve various RFID reading applications, providing both economies of scale from standardization and flexibility for application-specific optimization through modular arrangement.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 modular design significantly simplifies installation, reduces costs, and enables easy adaptation to new conditions, facilitating quick assembly and disassembly without the need for heavy lifting equipment, while maintaining consistent electromagnetic shielding and expanding functionality beyond RFID reading.

Implementation Method 1

The RFID reader only works with an RFID antenna that transmits and/or receives electromagnetic radiation

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Implementation Method 2

shielding is provided which on the one hand shields and on the other hand creates constant electromagnetic reading conditions in the reading area

Methodology Applied
Scientific EffectElectromagnetic shielding: Faraday Cage

Data Source

PatentEP2741230B1RFID reading tunnel for identifying objects by means of RFID
Publication Date: 2016.03.02 SICK AG
  • EP2741230B1 patent drawingFigure 1
  • EP2741230B1 patent drawingFigure 2~3
  • EP2741230B1 patent drawingFigure 4~6

AI summary

The invention relates to an RFID reading tunnel for identifying objects using RFID, comprising a tunnel-like shield for electromagnetic radiation with side walls and a ceiling section, a storage or conveying device for the object in or through the tunnel, and at least one RFID reader with at least one RFID antenna. To provide an improved RFID reading tunnel that is more cost-effective and easier to install, it is proposed that the shield be formed by modules that can be variably and detachably connected to one another, and that the modules be selected from a set of predefined modules.