Retail Tag Status Classification Using Adaptive Weighting

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Solution Overview

Problem

Current security systems in retail environments face challenges in accurately classifying tag status, often resulting in false alarms and requiring labor-intensive manual reconfiguration due to changes in retail layouts, which affects the efficiency of inventory tracking and loss prevention.

Innovation Solution

A system that includes sensors, a processor, and a machine-learning algorithm to classify tag detection events using weighting values, allowing for automatic adaptation and updating of classification models based on initial and secondary tag status determinations, enabling more accurate inventory tracking and loss prevention without the need for skilled engineers to manually reconfigure the system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a security system generates an alarm in response to the presence of a tag, then loss prevention is improved, but false alarms increase

Engineering Contradiction:
Improveloss prevention accuracyVSAvoidfalse alarms
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The system changes parameters by using multiple exit system measurements (signal strength, tag temperature, time of detection) and applying weighting values to each measurement. This multi-parameter approach allows the system to distinguish between legitimate theft cases and false alarm scenarios, improving loss prevention accuracy while reducing false alarms.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system implements feedback by continuously monitoring multiple measurements and updating the classification of tag status based on the combined information. The system learns from past detections and adjusts its response, providing feedback loops that improve accuracy over time while filtering out false alarm conditions.

Inventive Principle:
Principle #23Feedback

2Object-generated harmful factors

If a security system requires a large exclusion zone around the exit system, then false alarms are reduced, but the system complexity and space requirements increase

Engineering Contradiction:
Improvefalse alarmsVSAvoidexclusion zone requirements
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

Instead of relying on a large physical exclusion zone, the system changes to using multiple measurement parameters (signal strength, tag temperature, detection time) with assigned weighting values. This allows accurate tag status classification within a smaller zone, reducing spatial requirements while maintaining false alarm reduction capabilities.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If manual reconfiguration is performed by skilled engineers, then system accuracy is maintained, but labor costs and reconfiguration time increase

Engineering Contradiction:
Improvetag status classification accuracyVSAvoidreconfiguration time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs self-service by automatically collecting exit system measurements, applying pre-configured weighting values, and classifying tag status without requiring skilled engineers for each reconfiguration event. The system autonomously adapts to changing retail layouts by processing measurement data and updating classifications, eliminating manual intervention while maintaining accuracy.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements dynamics by allowing weighting values and measurement parameters to be adjusted based on changing conditions in the retail environment. Rather than static manual reconfiguration, the system dynamically adapts its classification criteria based on ongoing measurements and observed patterns, maintaining accuracy as layouts change.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11568160B2Methods and systems for classifying tag status in a retail environment
Publication Date: 2023.01.31 SENSORMATIC ELECTRONICS CORP
  • US11568160B2 patent drawing
  • US11568160B2 patent drawing
  • US11568160B2 patent drawing

AI summary

Examples described herein generally relate to a system for monitoring tags in a retail environment. The system includes an exit system including one or more sensors that read a tag to obtain exit system measurements associated with a tag detection event. The system includes a memory and a processor configured to execute instructions to receive a selection of a base configuration, the base configuration including weighting values for a plurality of exit system measurements. The processor may classify a tag detection event into a first tag status for the tag detection event based on application of the weighting values to exit system measurements associated with the tag detection event. The processor may determine a second tag status of the tag after the tag detection event. The processor may update the weighting values using a machine-learning algorithm based on at least the first tag status and the second tag status.