Self-Checkout Helper Device for Non-Scan Loss Verification

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Solution Overview

Problem

Conventional basket-based loss detection systems at self-checkout terminals cannot verify the intent behind un-scanned merchandise, leading to false-positive alerts and requiring unnecessary human intervention.

Innovation Solution

A system comprising a video source, a non-scan item detection module, and a self-checkout helper module that issues alerts and receives responses from shoppers via a computerized user interface to verify the presence of un-scanned items.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional basket-based loss detection system is used to detect un-scanned items, then item theft detection capability is provided, but false-positive alerts increase and human intervention is required

Engineering Contradiction:
Improvefraudulent activity detection accuracyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system implements feedback by capturing shopper responses through the user interface and using this information to verify or dismiss alerts. The controller receives input from the shopper interface and automatically verifies un-scanned items based on shopper confirmation, creating a closed-loop feedback system that reduces false positives without requiring human intervention.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The shopper interface acts as an intermediary between the loss detection system and the shopper. It presents alerts to the shopper, collects their responses, and transmits this information to the controller for automated verification. This intermediary layer enables automated decision-making while maintaining system simplicity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If conventional loss detection systems generate alerts for un-scanned items, then potential theft is flagged, but false-positive alerts require human intervention to verify

Engineering Contradiction:
Improveun-scanned item detection accuracyVSAvoidverification time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system enables self-service verification by allowing shoppers to directly interact with the interface to confirm or deny un-scanned items. The shopper's response is automatically processed by the controller, which verifies the alert without requiring attendant intervention. This self-service mechanism eliminates verification time loss while maintaining detection precision.

Inventive Principle:
Principle #25Self-service

3Productivity

If automated verification without shopper input is used, then processing speed increases, but false-positive alerts cannot be distinguished from actual theft

Engineering Contradiction:
Improveverification processing speedVSAvoidshopper intent information
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The system captures shopper feedback through the user interface to determine intent behind un-scanned items. This feedback loop enables the controller to distinguish between accidental oversights and intentional theft while maintaining automated processing. The shopper's response provides critical information that resolves ambiguity without slowing down verification.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary automated detection of un-scanned items, then uses shopper input to confirm or dismiss alerts. This two-stage approach with preliminary automated action maintains high processing speed while incorporating necessary shopper information to eliminate false positives.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12272218B2Non-scan loss verification at self-checkout terminal
Publication Date: 2025.04.08 NCR VOYIX CORP
  • US12272218B2 patent drawing
  • US12272218B2 patent drawing
  • US12272218B2 patent drawing

AI summary

A system and method for verifying a non-scan item at a self-checkout point-of-sale terminals provided. A merchandise item that isn't scanned at the self-checkout terminal is identified by a detection system. Further, a user helper device is provided to verify the incident by prompting the shopper for an input. The user helper device is operably connected to the self-checkout point-of-sale terminal and the detection system to determine and verify a fraudulent incident occurring during a transaction activity by the shoppers. Further, a store attendant device is provided for human intervention when necessary.