Barcode and Symbol Recognition for Disposable Component Authentication

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Solution Overview

Problem

Smart control systems for home appliances with disposable components struggle to accurately monitor and provide information on the lifetime and end-of-life status when the disposable components are manufactured by companies other than the original equipment manufacturer, due to unclear quality and performance.

Innovation Solution

A method and system that utilize a camera and processor to compare visual codes and symbols on disposable components with reference codes and symbols, ensuring only compatible and genuine components receive full monitoring and service-related information, while preventing unauthorized components from being used or installed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the smart control system accepts disposable components from any manufacturer, then the consumer has more choices and flexibility, but the system cannot properly monitor the status and provide accurate lifetime information

Engineering Contradiction:
Improvecompatibility with different manufacturersVSAvoidlifetime and status information
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The identification system is segmented into two distinct parts: a visual code (barcode/QR code) for component identity and a visual symbol (logo) for manufacturer authentication. This segmentation allows the system to separately handle compatibility verification and manufacturer verification, resolving the contradiction between accepting multiple manufacturers and maintaining information accuracy.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary authentication mechanism using manufacturer-specific visual symbols that mediate between the diverse component market and the control system. The symbol acts as a trusted intermediary that verifies the component's origin before the system accepts it, enabling information tracking without restricting manufacturer choices.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the system implements strict authentication to ensure genuine components, then the reliability of monitoring is improved, but the complexity of the identification system increases

Engineering Contradiction:
Improveauthentication accuracyVSAvoididentification system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses visual copies (images) of manufacturer logos and symbols that can be captured by a camera and processed by image recognition algorithms. This copying approach simplifies the authentication system compared to complex hardware verification, while maintaining high reliability through pattern matching against stored reference symbols.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces complex mechanical or electronic authentication mechanisms with optical recognition systems. Instead of using RFID tags, NFC, or physical verification, the system uses visual codes and symbols that can be read by standard camera-based barcode scanners, significantly reducing system complexity while maintaining authentication reliability.

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

3Ease of operation

If the system provides full monitoring services for all components, then the service quality is improved, but unauthorized components may be incorrectly monitored leading to inaccurate information

Engineering Contradiction:
Improveservice provisionVSAvoidcomponent status monitoring accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The system performs preliminary authentication of the component's manufacturer identity before initiating any monitoring services. By verifying the visual symbol matches the authorized manufacturer's reference symbol in advance, the system ensures that only genuine components receive full monitoring services, preventing inaccurate monitoring of unauthorized components while maintaining ease of service provision for authenticated components.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3347859B1Determining an action associated with an apparatus using a bar code combined with a symbol
Publication Date: 2019.03.06 KONINKLIJKE PHILIPS NV
  • EP3347859B1 patent drawingFigure 1
  • EP3347859B1 patent drawingFigure 2~3B
  • EP3347859B1 patent drawingFigure 4

AI summary

A method of determining an action associated with an apparatus, the apparatus having a disposable component, the method comprising: obtaining (100), by means of a camera (416), data representing a visual code (301, 303) and a visual symbol (302, 304); comparing (120), by means of a processor (414), the visual code represented by said data with a reference code, the reference code indicating an identity of a disposable component of the apparatus, and comparing (130), by means of said processor, the visual symbol represented by said data with a reference symbol, to obtain comparison results; and determining (140) the action in response to the comparison results.