Retail Display Security Using Inertial Navigation Without Tethers

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Solution Overview

Problem

Conventional retail display security systems are either mechanically or electro-mechanically tethered to merchandise, relying on external references for positioning, and often require vulnerable keys, leading to increased theft risks and false alarms, which negatively impact the customer experience and security effectiveness.

Innovation Solution

A portable security system with sensors, output devices, and a controller that determines the distance of merchandise from a 'home' position using inertial navigation, activating alarms and wireless communications without external references, and can be integrated into electronic items or used as a display battery pack or externally mounted module.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mechanical or electro-mechanical tethers are used to secure merchandise, then security protection is provided, but customer interaction with merchandise is restricted

Engineering Contradiction:

Improvetheft protectionVSAvoidcustomer interaction

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces mechanical tethers and EAS tags with a wireless security system that uses radio frequency communication between a portable security device and a base station. The system monitors merchandise position and communicates security status wirelessly, eliminating the need for physical cables or attached tags while maintaining theft protection and allowing free customer interaction with displayed items.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If keys are used to disarm alarms and detach merchandise, then security system operation is enabled, but key theft and unauthorized access risk increases

Engineering Contradiction:

Improvesecurity system operationVSAvoidsecurity vulnerability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent replaces physical keys with wireless authentication using unique identifiers stored in the portable security device. The device communicates wirelessly with the base station to authenticate and disarm alarms, eliminating physical keys that can be lost or stolen. The system uses encrypted wireless communication and unique device identifiers to prevent unauthorized access.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The portable security device automatically performs authentication and alarm disarming functions through wireless communication with the base station. The system self-identifies using its unique identifier and automatically completes the disarming process without requiring manual key insertion or complex authentication procedures by store personnel.

Inventive Principle:

Principle #25Self-service

3Measurement precision

If external references are used for position determination, then positioning accuracy is achieved, but system reliability decreases due to signal loss

Engineering Contradiction:

Improveposition determination accuracyVSAvoidcontinuous operation

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The patent introduces a base station as an intermediary that establishes a dedicated wireless communication link with the portable security device. Instead of relying on external GPS or RF signals that can be lost, the system uses this direct intermediary communication channel to continuously monitor position and maintain security status, ensuring reliable operation even when external signals are unavailable.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

This solution provides effective theft protection without mechanical tethers or external references, reducing false alarms and enhancing the customer experience by allowing free interaction with merchandise while maintaining robust security.

Implementation Method 1

determines a distance of the item of merchandise from a home position by processing motion of the item of merchandise

Methodology Applied

Scientific EffectInertial navigation:

Data Source

PatentUS11568721B2Systems and methods for protecting retail display merchandise from theft

Publication Date: 2023.01.31 ALPHA SECURITY PRODUCTS INC

AI summary

Security systems and methods configured for use with an item of merchandise for retail display include a housing, at least one sensor carried by the housing and at least one output device carried by the housing. The security system further includes a controller carried by the housing and operably coupled to the sensor and to the output device. The controller is operable to determine a distance traveled by the item of merchandise from a retail display “home” position based upon a sensor input from the sensor, and to activate the output device based upon the distance traveled by the item of merchandise exceeding a threshold distance. The controller may utilize the at least one sensor in conjunction with an inertial navigation system (INS) and motion processing algorithms or techniques to determine the distance traveled by the item of merchandise from the retail display “home” position.