Electronic Key Lock Mechanism for Tethered Security Device
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Solution Overview
Problem
Retailers face challenges in securing expensive merchandise from theft, as existing security devices can be tampered with or removed by determined shoplifters, and current locking mechanisms are not sufficiently secure or programmable.
Innovation Solution
A merchandise display security system featuring a base with an alarm circuit and tether, along with an electronic key that operates a lock mechanism, which secures items to the tether and detects unauthorized removal or cutting, providing enhanced security through electrical power transfer and programmable functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional mechanical lock mechanism is used, then the device is simple and cost-effective, but the security is insufficient and can be tampered with by determined shoplifters
Solution Approach 1:
The patent replaces the conventional mechanical lock mechanism with an electronic lock mechanism that uses an electronic key and electronic control circuit. The electronic key contains a microprocessor and battery, and communicates with the electronic control circuit in the security device to control the lock mechanism, providing enhanced security while maintaining reasonable complexity through integration of electronic components.
2Stability of the object's composition
If the security device is firmly attached to support structures, then the device is stable and secure, but it becomes difficult to remove or reposition the device
Solution Approach 1:
The patent employs a retractable tether mechanism that allows the security device to dynamically adjust its attachment state. The tether can be extended to secure the device firmly to support structures when stability is needed, and retracted or released when repositioning or removal is required, providing both stability and ease of operation through controlled mechanical flexibility.
3Ease of operation
If a tether is used to secure merchandise, then the merchandise can be easily attached and detached, but the tether may be cut or removed by shoplifters
Solution Approach 1:
The patent incorporates an alarm circuit that provides feedback when the tether is cut or removed. The alarm circuit detects the separation of the tether from the security device and triggers an audible alarm to alert shoplifters and draw attention to the theft attempt, deterring further action and providing real-time security monitoring.
Solution Approach 2:
The patent uses an electronic control circuit as an intermediary between the mechanical tether and the alarm system. The electronic control circuit receives signals from the tether status, processes the information, and activates the alarm accordingly, providing intelligent security monitoring that responds to tether compromise events.
4Reliability
If an electronic key with power transfer is used, then the lock mechanism can be securely controlled, but the device requires additional power sources and electronic components
Solution Approach 1:
The patent designs the electronic key to serve multiple functions: it acts as both a security access device and a power source for the lock mechanism. The electronic key contains a battery that provides power to the lock mechanism when the key is inserted and recognized, eliminating the need for separate power sources in the security device and reducing overall energy consumption through efficient power transfer.
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
The system effectively deters theft by securing items to a tether with an alarm circuit that detects removal or cutting, and a lock mechanism operated by an electronic key, offering improved security and consumer experience while maintaining cost-effectiveness.
Implementation Method 1
A lock mechanism is configured to be operated by electrical power transferred from the electronic key to the lock mechanism
Implementation Method 2
The alarm circuit configured to detect removal of the base from the support surface, cutting of the tether, and/or removal of the tether
Data Source
AI summary
A merchandise security device is provided. The merchandise security device may include a base configured to be attached to a support surface. The base includes an alarm circuit and a tether, and the tether is configured to be extended and retracted relative to the base and to be coupled to one or more items of merchandise. The alarm circuit is configured to detect removal of the base from the support surface, cutting of the tether, and/or removal of the tether. In addition, the security device includes a lock mechanism configured to lock to the tether for securing the one or more items of merchandise to the tether, wherein one or more items of merchandise are removable from the tether when the lock mechanism is unlocked.