Cabinet Lock Unit with Wireless Plug Actuation
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Solution Overview
Problem
Current lock-and-key systems for retail cabinets are cumbersome, as they often require physical keys, leading to difficulties in accessing items for customers and managing employee permissions, and incur significant costs and time when keys are lost or stolen, without providing automated monitoring or tracking of usage patterns.
Innovation Solution
A system comprising a lock unit and a portable user terminal with wireless communication, allowing secure and flexible access management through a plug unit that can be transferred between locking and release positions, with a control unit that verifies commands and stores usage data, enabling multiple employees to access locks without physical keys and providing real-time permission adjustments and automated re-locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional lock-and-key system is used for cabinet access, then security protection is provided, but access convenience deteriorates due to key management complexity and employee availability requirements
Solution Approach 1:
The patent replaces the traditional mechanical key-lock system with an electronic access control system. The lock unit incorporates a control unit that receives access requests via wireless communication from portable terminals, verifies authentication credentials, and controls an actuation unit to release the plug unit. This electronic substitution eliminates physical key dependency, enabling remote access authorization and improving both security monitoring and access convenience.
Solution Approach 2:
The patent introduces a portable user terminal (smartphone or tablet) as an intermediary device between the user and the lock system. The terminal communicates wirelessly with the lock unit to transmit access commands and authentication data. This intermediary enables users to access cabinets without physically carrying keys or requiring direct interaction with lock mechanisms, significantly improving access convenience while maintaining security through digital authentication.
2Reliability
If physical keys are used for cabinet access, then locking function is provided, but time consumption increases when keys are lost or stolen requiring lock replacement
Solution Approach 1:
The patent replaces physical keys with electronic authentication and wireless communication. The lock unit's control unit verifies digital credentials from portable terminals and controls the actuation unit to release the plug unit. This eliminates physical key dependency, so if a key is lost or stolen, no time-consuming replacement is needed - the system can be remotely reconfigured through software without affecting the mechanical locking function.
Solution Approach 2:
The patent uses digital copies of authentication credentials stored in portable terminals instead of physical keys. The control unit in the lock unit stores authorized user identifiers and verifies them during access attempts. This digital copying approach allows multiple users to have access rights without distributing physical keys, eliminating the time loss associated with key replacement while maintaining secure locking functionality.
3Reliability
If traditional lock systems are used, then cabinet securing is provided, but monitoring capability deteriorates due to lack of automated usage tracking
Solution Approach 1:
The patent implements a feedback mechanism where the control unit in the lock unit automatically records access events and transmits this information to external servers or stores it locally. The system monitors and tracks usage patterns, including which users accessed which cabinets, when, and for how long. This feedback loop provides comprehensive usage tracking while maintaining cabinet securing through the same electronic authentication mechanism.
Solution Approach 2:
The patent replaces the silent mechanical lock system with an electronic system that inherently generates and records data. The control unit processes wireless communication signals from portable terminals, verifies authentication, and automatically logs all access attempts. This electronic substitution transforms the lock system from a passive mechanical device into an active monitoring system that provides detailed usage information without compromising cabinet security.
Data Source
AI summary
The present invention relates to a system, comprising a lock unit for a cabinet and at least one portable user terminal, the at least one user terminal comprising an interface unit for receiving input commands by the user, a communication unit for at least wirelessly transmitting a release command to the lock unit, and a control unit operatively coupled with the interface unit, the communication unit and a storage unit, wherein the storage unit is adapted to store a unique identifier of the user terminal, wherein the control unit is adapted to create the release command based on input commands in such a manner that it includes the unique identifier; the lock unit comprising a plug unit which is adapted to be transferable between a release position and a locking position, wherein in the release position, opening of the cabinet is enabled, and in the locking position, opening of the cabinet is prohibited, an operation unit adapted for manual operation by the user, which is adapted to transfer the plug unit from its release position to its locking position, an actuation unit adapted for automatically transferring the plug unit from its locking position to its release position, a communication unit for wirelessly receiving the release command from the user terminal; and a control unit operatively coupled to the communication unit and the actuation unit and adapted to verify the received release command as well as to control the actuation unit for transferring the plug unit to its release position upon having verified the received release command, wherein the control unit of the lock unit is further adapted to store status and/or use data on the received release command and/or to transmit status and/or use data to an external server by means of the communication unit of the lock unit.