Shelf Notification Using Weight Feedback for Item Misplacement

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Solution Overview

Problem

There is a common issue in retail environments where items are often misplaced back onto shelves without being returned to their original storage locations, leading to misplacement and inefficiencies.

Innovation Solution

A notification device is implemented in display fixtures that uses weighing scales to detect misplacement of items and outputs voice notifications to inform individuals of the correct storage location, utilizing a processor to analyze weight differences and trigger alerts when abnormal changes are detected.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If items are placed on the nearest location on the sales floor, then the ease of operation is improved, but the misplacement of items occurs

Engineering Contradiction:
Improveease of returning itemsVSAvoidaccuracy of item placement
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The system uses weight sensors to detect changes in storage locations and provides real-time feedback through notifications to customers when items are misplaced, enabling them to correct the placement without leaving the shopping area

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces manual verification of item placement with an automated electronic detection system using weight sensors and a notification device, eliminating the need for customers to consciously track and verify their item returns

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

2Manufacturing precision

If manual monitoring of item placement is implemented, then the accuracy of item placement is improved, but the device complexity increases

Engineering Contradiction:
Improveaccuracy of item placementVSAvoidcomplexity of monitoring system
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent replaces complex manual monitoring with a simple automated system using weight sensors that detect weight changes and a notification device that provides alerts, significantly reducing operational complexity while maintaining high detection accuracy

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

Solution Approach 2:

The system enables self-monitoring through automatic weight detection and self-correction by notifying customers directly at the point of misplacement, eliminating the need for additional staff or complex monitoring infrastructure

Inventive Principle:
Principle #25Self-service

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

Effectively informs individuals of item misplacement, ensuring items are returned to their correct locations, thereby maintaining order and efficiency in retail storage.

Implementation Method 1

a first weighing scale provided on a first shelf board and configured to output a first electrical signal indicative of a weight of a first item placed on the first shelf board

Methodology Applied
Scientific EffectWeight measurement:

Implementation Method 2

a processor configured to: compare the first electrical signal with a second electrical signal indicative of a weight of a second item placed on a second shelf board; and in response to determining that a difference between the first electrical signal and the second electrical signal exceeds a threshold value, generate a notification indicative of a misplacement of the first item

Methodology Applied
Scientific EffectWeight comparison:

Data Source

PatentEP4030369B1Notification device and notification method
Publication Date: 2025.11.19 TOSHIBA TEC KK
  • EP4030369B1 patent drawingFigure 1
  • EP4030369B1 patent drawingFigure 2~3
  • EP4030369B1 patent drawingFigure 4

AI summary

According to one embodiment, a notification device for smart display fixtures and the like includes an interface unit configured to connect to a sensor of the display fixture. The notification device also includes a notification output unit and a processor. The processor is configured to detect placement of an article on the display fixture at a location not designated for the article based on output from the sensor. The processor is also configured to cause the notification output unit to output a notification for notifying a person of the detected placement of the article on the display fixture at the location not designated for the article.