Electronic Label System with RFID for Automated Inventory Tracking

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Solution Overview

Problem

Conventional price tag management is laborious and prone to errors, and existing electronic systems lack the ability to provide detailed information about product status and location within a store and warehouse.

Innovation Solution

An electronic price, inventory management, and label system utilizing two-way communication between electronic labels and a base station, with RFID-tag reading capabilities to detect product quantities and locations, allowing for accurate and automated inventory tracking and updates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If manual price tag updating is used, then system complexity is low, but labor intensity and error risk increase significantly

Engineering Contradiction:
Improvesystem complexityVSAvoidlabor intensity
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The electronic label system performs automatic price updates through self-service mechanisms. The base station communicates price information wirelessly to electronic labels, which automatically display the updated prices without requiring manual intervention. This eliminates the labor-intensive process of manually finding products and replacing price tags while maintaining system simplicity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the mechanical system of manual price tag handling with an electronic communication system. Instead of physically moving and replacing paper or plastic price tags, the system uses wireless communication between the base station and electronic labels to transmit price updates, thereby reducing labor intensity while keeping device complexity manageable.

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

2Productivity

If electronic label systems are used for centralized price updates, then price information updating is accelerated, but the system fails to provide detailed product status and location information

Engineering Contradiction:
Improveprice information updating speedVSAvoidproduct status and location information
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The electronic label system is designed with multi-functionality to serve multiple purposes. In addition to displaying price information and enabling centralized price updates, the system incorporates RFID tags and readers to detect product quantities and locations. This universal approach allows a single system to handle both price management and inventory tracking without sacrificing either function.

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

Solution Approach 2:

The patent merges the electronic label system with RFID technology to combine price display functionality with inventory management capabilities. By integrating RFID tags into products and using readers at the base station, the system simultaneously tracks product locations and quantities while maintaining the ability to update prices centrally, thus preventing information loss.

Inventive Principle:
Principle #5Merging (Combining)

3Difficulty of detecting and measuring

If RFID tags are used for remote reading, then product detection capability is improved, but system complexity and integration requirements increase

Engineering Contradiction:
Improveproduct detection capabilityVSAvoidsystem integration complexity
Core Design Contradiction:
Difficulty of detecting and measuringVSDevice complexity

Solution Approach 1:

The system merges RFID reading functionality with the existing electronic label base station. The base station that already communicates with electronic labels is enhanced to also include RFID reading capabilities, allowing it to detect products with RFID tags. This integration approach improves product detection capability while minimizing additional system complexity by combining functions into a single platform.

Inventive Principle:
Principle #5Merging (Combining)

4Loss of information

If inventory tracking systems are implemented, then product quantity and location information is available, but manual operations and errors persist

Engineering Contradiction:
Improveinventory information availabilityVSAvoidmanual operation level
Core Design Contradiction:
Loss of informationVSExtent of automation

Solution Approach 1:

The system implements self-service automation where the base station automatically queries RFID tags to detect product quantities and locations, and automatically updates electronic labels with price information. This automated process eliminates manual inventory tracking operations and reduces human errors while ensuring continuous availability of accurate inventory information.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system incorporates feedback mechanisms where the base station receives information from RFID readers about product locations and quantities, processes this information, and automatically updates the electronic labels and inventory management system. This closed-loop feedback approach ensures real-time inventory information availability while minimizing manual intervention and associated errors.

Inventive Principle:
Principle #23Feedback

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

Enables precise and automated tracking of product quantities and locations, reducing manual errors and providing real-time inventory information, which can be implemented with minimal modifications to existing systems.

Implementation Method 1

Some tags are powered by electromagnetic induction from magnetic fields produced near the reader

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

Some types collect energy from the interrogating radio waves and act as a passive transponder

Methodology Applied
Scientific EffectElectromagnetic energy collection: Electromagnetic Induction

Data Source

PatentEP3362961B1Electronic price, inventory management and label system
Publication Date: 2024.04.03 MARIELLA LABELS
  • EP3362961B1 patent drawingFigure 1A
  • EP3362961B1 patent drawingFigure 1B
  • EP3362961B1 patent drawingFigure 2A

AI summary

A method for an electronic price, inventory man- agement and label system and an electronic price, inventory management and label system,which comprises an electronic label system,comprising at least one base station and electronic labels, which are configured to communicate with the base station using two way communication. The system further comprises means for reading re- motely readable tags, such as RFID-tags,wherein remotely readable tags are attached to products and wherein certain electronic label is linked to remotely readable tag(s) of certain product(s). The system is configured to detect the number of cer- tain product in a space by using the means for reading remotely readable tags, and the system is configured to identify the location of these prod- ucts based on the location of the electronic label linked to the product.