IoT Reader Configuration via BLE Signal Strength and LED Feedback

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Solution Overview

Problem

Administrators face challenges in configuring, updating, and identifying physical access control system readers with limited user interface elements, especially when multiple readers are visually indistinguishable and rely solely on wireless communication protocols, making it difficult to perform administrative tasks without compromising security.

Innovation Solution

Utilizing a separate administrative computing device with a graphical user interface and wireless communication capabilities, such as smartphones or tablets, to scan for and connect to readers using Bluetooth Low Energy (BLE) signals, ordering devices by signal strength, and automatically establishing connections without further user input, allowing for identification through LED flashes and sounds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If readers rely solely on wireless communication protocols without wired interfaces, then security is improved, but ease of operation deteriorates

Engineering Contradiction:
ImprovesecurityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces a wireless communication interface as an intermediary between the administrator and the reader device. The administrative computing device communicates with the reader through wireless protocols, eliminating the need for physical wired interfaces while maintaining secure communication channels. This resolves the contradiction by providing secure wireless access for administrative tasks.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If multiple readers are deployed without visible distinguishing features, then device complexity is reduced, but ease of operation deteriorates

Engineering Contradiction:
Improvedevice complexityVSAvoidease of operation
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The patent employs LED indicators that display different colors or patterns to distinguish between multiple readers. The visual feedback mechanism allows administrators to identify specific readers without adding physical distinguishing features, maintaining device simplicity while enabling easy identification and selection during wireless pairing.

Inventive Principle:
Principle #32Color changes

3Reliability

If MAC addresses are not printed on reader bodies, then security is improved, but ease of operation deteriorates

Engineering Contradiction:
ImprovesecurityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the mechanical/physical system of printed MAC addresses with an electronic display system. The administrative computing device retrieves and displays MAC addresses through wireless communication, eliminating the need for physical printing while maintaining security. This electronic approach allows dynamic display of identification information without compromising security.

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

4Device complexity

If readers have limited user interface elements, then device complexity is reduced, but ease of repair deteriorates

Engineering Contradiction:
Improvedevice complexityVSAvoidease of repair
Core Design Contradiction:
Device complexityVSEase of repair

Solution Approach 1:

The patent implements self-service diagnostics where the reader device automatically provides system information, status data, and diagnostic information through wireless communication. The administrative computing device can retrieve this information without physical access to the reader's internal components, enabling remote troubleshooting and repair while maintaining simple device design.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3054714B1Discovering, identifying, and configuring devices with ambiguous addresses in the internet of things environment
Publication Date: 2020.04.08 ASSA ABLOY AB
  • EP3054714B1 patent drawingFigure 1
  • EP3054714B1 patent drawingFigure 2
  • EP3054714B1 patent drawingFigure 3

AI summary

A method and device (112) for discovering, identifying, and configuring a particular one of a plurality of devices (104a, 104b, 104c, 104d) to be administered is described. The method and device (112) facilitate these steps by eliminating the need for an administrator to know a specific MAC address or unique identifier for the device (104a, 104b, 104c, 104d) to be administered, and by eliminating the need to identify that specific MAC address or unique identifier in a list of MAC addresses or unique identifiers.