Locking Module With RFID Solenoid Actuator
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Solution Overview
Problem
Existing lockable devices, such as lockboxes, face challenges in securely storing and retrieving keys or access aids, as they often require complex combinations or credentials for authorization, which can be cumbersome and prone to misuse.
Innovation Solution
A locking module that includes a rotatable locking member and an engagement member movable between locked and unlocked positions, allowing selective coupling and decoupling of components, such as a shackle or keybox, using a mechanical or electromechanical mechanism to ensure secure storage and retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanical lockbox requires a correct lock combination for access, then security is improved, but ease of operation deteriorates
Solution Approach 1:
The patent replaces complex mechanical combination locks with an electromechanical system using a solenoid actuator controlled by an RFID reader. The RFID system provides contactless authentication, eliminating the need for users to manually input combinations while maintaining security through electronic verification of credentials.
2Ease of operation
If an electronic lockbox requires wireless credential communication for access, then ease of operation is improved, but device complexity worsens
Solution Approach 1:
The lockbox integrates multiple functions into a single compact unit: the RFID reader serves both as an authentication device and a control interface, the solenoid actuator provides both locking and unlocking functions, and the microcontroller manages both credential verification and actuator control. This multi-functionality reduces the need for separate components.
3Ease of operation
If the locking module uses a solenoid actuator for unlocking, then ease of operation is improved, but use of energy worsens
Solution Approach 1:
The solenoid actuator operates in periodic pulses rather than continuous operation. The microcontroller activates the solenoid for brief intervals (e.g., 0.5-2 seconds) to achieve unlocking, then deactivates it. This pulsed operation significantly reduces energy consumption compared to continuous actuation while maintaining effective unlocking functionality.
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 locking module provides a secure and user-friendly method for authorized access to the lockbox contents by restricting movement of components based on the engagement member's position, ensuring secure storage and easy retrieval of keys or access aids.
Implementation Method 1
a spring extending between the locking cam and the shaped member, the spring being operable to bias the locking cam to a position where the end of the locking cam is received within the cavity of the shackle
Implementation Method 2
a rotatable locking member and an engagement member movable between locked and unlocked positions
Data Source
AI summary
A locking module for selectively coupling a first component and a second component of a lockable device includes a locking member rotatable about an axis between a rest position and an actuated position. An engagement member is movable between a locked position and an unlocked position. The engagement member is configured to cooperate with the locking member to selectively release the second component.