Universal Mounting Ring for RFID Reader Positioning

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Solution Overview

Problem

Existing RFID reader mounting solutions compromise on both functionality and aesthetics, as they often require a dedicated housing that protrudes from the wall and does not match surrounding aesthetics, and are inflexible in terms of positioning and read range adjustment.

Innovation Solution

A universal mounting ring with a planar arcuate plate and downwardly depending tabs that allows for multiple mounting positions and adjustable placement within an electrical enclosure, accommodating various cover assemblies and enabling read range optimization by positioning the reader relative to the enclosure's inner surface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a reader is potted in a plastic housing to protect it from metal objects and maintain read range, then the reader's functional performance is improved, but the aesthetic appearance deteriorates as the housing protrudes from the wall and does not match surrounding cover plates

Engineering Contradiction:
Improveread rangeVSAvoidaesthetic appearance
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The mounting system is divided into separate functional components: a thin mounting ring that attaches to the junction box and a separate cover plate that provides aesthetics. This segmentation allows the functional housing to remain minimal while the aesthetic cover is separate, resolving the contradiction between protection and appearance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A thin mounting ring acts as an intermediary between the functional reader housing and the aesthetic cover plate. This intermediary component provides the necessary mounting function while being visually unobtrusive, allowing both functional performance and aesthetic appearance to be satisfied simultaneously.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a dedicated housing is used to mount the reader away from metal objects, then the reader's read range is maintained, but the device complexity increases and flexibility in positioning is reduced

Engineering Contradiction:
Improveread rangeVSAvoidmounting system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The mounting ring is designed as a universal component that can be used with various reader models and junction box configurations. This multi-functionality reduces the need for specialized housings for each application, simplifying the overall system while maintaining the ability to position readers away from metal objects for optimal performance.

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

3Device complexity

If the reader is fixed in a specific position within the housing, then the mounting structure is simplified, but the ability to adjust read range and optimize positioning is lost

Engineering Contradiction:
Improvemounting structureVSAvoidpositioning flexibility
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The mounting ring incorporates adjustable positioning features that allow the reader to be positioned at multiple locations along the ring. This dynamic positioning capability enables optimization of read range while maintaining a relatively simple mounting structure, as the adjustability is built into the ring design rather than requiring complex external mechanisms.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3264548B1Universal mounting ring
Publication Date: 2022.03.16 ASSA ABLOY AB
  • EP3264548B1 patent drawingFigure 1A~1B
  • EP3264548B1 patent drawingFigure 2A~2C
  • EP3264548B1 patent drawingFigure 3A~3B

AI summary

A universal mounting ring has an arcuate or curved upper portion and a plurality of downwardly depending tabs. The universal mounting ring is configured to interface with an electrical enclosure, such as conventional electrical junction boxes to permit a radio frequency identification (RFID) reader to be secured within the enclosure and mate with a wide variety of enclosure cover assemblies manufactured by third parties. The downwardly depending mounting tabs are provided with multiple mounting positions such that the reader may be securely mounted at a plurality of positions relative to a cover assembly.