Sales Data Processing with Dual-Antenna Tag Detachment Verification

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Solution Overview

Problem

In retail environments, RFID and crime prevention tags attached to commodities often fail to be detached after sale, leading to inefficiencies in inventory management and sales processing due to potential damage or forgetfulness.

Innovation Solution

A sales data processing apparatus comprising a first antenna to read tag information, a recovery device to detach and recover the tag, and a processor to determine if the tag needs to be detached, with a notification system to alert staff, ensuring accurate sales registration only when the tag is properly removed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If wireless tags (RFID and crime prevention tags) are attached to commodities for identification and security purposes, then commodity identification accuracy and crime prevention capability are improved, but the risk of tag damage from microwave heating and the complexity of manual detachment increase

Engineering Contradiction:
Improvecommodity identification accuracyVSAvoidtag detachment process
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary judgment about tag detachment necessity before the sales registration is completed. The processor judges whether the tag should be detached based on tag information received from the first antenna, and issues notifications in advance to guide staff to detach tags before the commodity leaves the store, preventing damage and ensuring proper inventory management.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system establishes a feedback loop where the processor continuously monitors tag information from the first antenna, judges detachment necessity, issues notifications to staff, and then verifies tag recovery through the second antenna. This closed-loop feedback system ensures tags are properly detached and recovered, resolving the complexity of manual detachment processes.

Inventive Principle:
Principle #23Feedback

2Ease of repair

If staff manually detach wireless tags from sold commodities, then tag recovery is possible, but the likelihood of forgetting to detach tags increases due to the large volume of commodities handled

Engineering Contradiction:
Improvetag recovery capabilityVSAvoidtime for tag detachment
Core Design Contradiction:
Ease of repairVSLoss of time

Solution Approach 1:

The system enables self-service by automatically judging which tags need to be detached and issuing notifications without requiring staff to manually check each tag. The processor autonomously processes tag information from the first antenna, determines detachment necessity, and guides staff through notifications, reducing both time loss and forgetting risks associated with manual handling of large commodity volumes.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system performs preliminary judgment and notification before the actual tag detachment occurs. By judging tag detachment necessity in advance and notifying staff beforehand, the system ensures tags are detached at the appropriate time without requiring staff to remember or manually check each commodity, thus reducing time loss and preventing forgotten detachments.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If tags are not detached from sold commodities, then sales processing speed is maintained, but inventory management accuracy deteriorates and damaged tags occur

Engineering Contradiction:
Improvesales processing speedVSAvoidinventory management accuracy
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system maintains sales processing speed while ensuring inventory accuracy through automated feedback mechanisms. The processor receives tag information from the first antenna during sales processing, judges detachment necessity, and issues notifications without interrupting the sales flow. After tag recovery, the second antenna verifies tag information, providing feedback that ensures inventory management accuracy without sacrificing processing speed.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary judgment about tag detachment necessity during the sales processing phase, before the commodity actually leaves the store. This allows sales processing to continue at normal speed while simultaneously identifying and notifying staff about tags that need detachment, ensuring inventory accuracy is maintained without slowing down transactions.

Inventive Principle:
Principle #10Preliminary action

4Reliability

If a notification system is added to alert staff about tag detachment requirements, then tag detachment reliability is improved, but device complexity increases

Engineering Contradiction:
Improvetag detachment reliabilityVSAvoidnotification system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The notification device serves multiple functions within the system: it receives control signals from the processor, generates visual or auditory notifications to guide staff, and integrates with the existing antenna and processor infrastructure. By making the notification device multi-functional and integrating it into the existing sales data processing apparatus, the system improves tag detachment reliability without proportionally increasing overall device complexity.

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

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

Ensures that RFID and crime prevention tags are reliably detached from sold commodities, preventing damage and ensuring accurate sales data processing, thereby improving inventory management and reducing errors.

Implementation Method 1

a first antenna to receive, from a wireless tag attached to a commodity, tag information

Methodology Applied
Scientific EffectElectromagnetic Induction: Electromagnetic Induction

Implementation Method 2

a second antenna to receive the tag information from the wireless tag recovered by the recovery device

Methodology Applied
Scientific EffectElectromagnetic Induction: Electromagnetic Induction

Data Source

PatentEP3667628B1Sales data processing apparatus and sales data processing method
Publication Date: 2023.11.29 TOSHIBA TEC KK
  • EP3667628B1 patent drawingFigure 1
  • EP3667628B1 patent drawingFigure 2
  • EP3667628B1 patent drawingFigure 3

AI summary

In one embodiment, a sales data processing apparatus has a first and a second antennas, and a processor. The first antenna receives, from a wireless tag attached to a commodity, tag information to uniquely identify the relevant commodity. The second antenna receives the tag information from the wireless tag recovered by a recovery device. The processor judges whether the wireless tag attached to the commodity is a wireless tag required to be detached from the commodity, based on the tag information received by the first antenna. The processor judges whether the second antenna has received the tag information of the wireless tag which is judged to be the wireless tag required to be detached from the commodity.