Merchandise security devices for use with an electronic key
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Solution Overview
Problem
Existing merchandise security devices, especially those using mechanical keys, are less secure and prone to theft as they can be easily tampered with or broken, lacking advanced locking mechanisms to prevent unauthorized access or removal of valuable items.
Innovation Solution
A merchandise security device utilizing a lock mechanism operated by a shape memory material that changes shape in response to electrical power, eliminating the need for internal power sources or complex mechanisms, and can be controlled by an electronic key for secure locking and unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanical lock mechanism operated by a conventional key is used, then the device structure is simple and easy to manufacture, but the security is reduced and the device is prone to theft and tampering
Solution Approach 1:
The patent replaces the conventional mechanical key-operated lock mechanism with an electronic lock mechanism that accepts an electronic key. This substitution eliminates mechanical wear and tear, prevents duplication of keys, and provides enhanced security features such as programmable access codes and transaction logging, while maintaining operational simplicity through electronic control circuits.
Solution Approach 2:
The patent changes the operational parameters of the lock mechanism from mechanical to electronic domain. The electronic key uses electrical signals and magnetic fields instead of physical key cuts, enabling features like time-based access control, multiple user profiles, and remote deactivation, thereby significantly improving security without requiring complex additional hardware.
2Reliability
If an electronic lock mechanism operated by a programmable electronic key is used, then the security is enhanced, but the device complexity increases
Solution Approach 1:
The patent designs the electronic lock mechanism to serve multiple functions: it acts as both a security lock and a control system for the merchandise display device. The electronic key not only unlocks the mechanism but also interfaces with the display's control circuits to enable features like price display, product information, and transaction recording, thereby reducing overall system complexity through functional integration.
Solution Approach 2:
The patent merges the lock mechanism with the display device's control system. The electronic key's circuitry is integrated with the display's control board, allowing the same electronic components to handle both locking/unlocking operations and display control functions. This consolidation reduces the number of separate components and simplifies manufacturing processes.
3Reliability
If a mechanical key system is used, then the device is easier to operate, but the security is compromised due to ease of tampering and breaking
Solution Approach 1:
The patent replaces the mechanical key insertion and turning action with an electronic interface where the user simply presents the electronic key to a reader. This eliminates the need for precise mechanical alignment and physical manipulation, maintaining ease of operation while dramatically improving security through electronic authentication and programmable access control.
Solution Approach 2:
The electronic lock mechanism automatically authenticates the electronic key and executes the locking or unlocking action without requiring user intervention beyond presenting the key. The system self-manages the authentication process, compares the key's identification data against stored credentials, and activates the appropriate response, thereby maintaining simplicity for the user while implementing sophisticated security measures.
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 solution provides enhanced security by ensuring that the lock mechanism can be reliably operated using an electronic key, reducing the risk of theft and wear, while simplifying the device's design and operation, thus enhancing the security and usability of merchandise display systems.
Implementation Method 1
a lock mechanism operably engaged with a shape memory material configured to receive electrical power for locking and unlocking the lock mechanism. The shape memory material is configured to change in shape in response to the at least one conductor receiving electrical power to thereby lock or unlock the lock mechanism
Implementation Method 2
the at least one conductor is configured to receive electrical power inductively. In another embodiment, the at least one conductor includes a coil having a plurality of continuous windings
Data Source
AI summary
A merchandise security device is provided. The merchandise security device may include a lock mechanism operably engaged with a shape memory material configured to receive electrical power for locking and unlocking the lock mechanism. The shape memory material may be configured to change in shape in response to receiving electrical power to thereby lock or unlock the lock mechanism.