Smart Key Lock ID Detection for Power Plant Security
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Solution Overview
Problem
Modern electric power plants face inefficiencies and errors due to the management of numerous physical mechanical keys for various locks, leading to delays and potential unauthorized access, as manual key retrieval is prone to human error and requires extensive time.
Innovation Solution
A lock-and-key system featuring standardized interchangeable lock cores and smart keys with a control module that reads unique lock IDs, enabling authorized unlocking operations and preventing unauthorized access, while a smart key management system manages user privileges and logs operations to prevent errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple physical mechanical keys are used for different locks, then each lock can be secured individually, but key management becomes tedious and error-prone
Solution Approach 1:
The patent implements a universal smart key that can operate multiple different locks through a standardized interface. The smart key contains a key head that matches the standardized lock core and incorporates electronic components (RFID reader, control module) that enable it to communicate with and control various locks using a single device, eliminating the need for multiple separate physical keys
Solution Approach 2:
The patent replaces traditional mechanical key systems with an intelligent system combining electronic identification (RFID), microprocessors, and controlled mechanical actuation. The smart key uses electronic detection of lock IDs and controlled mechanical components (rotation stopper, plug rotation) to unlock locks, substituting the simple mechanical key insertion and turning mechanism with a more sophisticated but user-friendly electronic control system
2Reliability
If a centralized key cabinet is used to store multiple keys, then key security is improved, but key retrieval time increases significantly
Solution Approach 1:
The patent extracts the key management function from the centralized key cabinet concept and embeds it directly into a portable smart key device. Instead of retrieving keys from a stationary cabinet, the authorization logic and key control functionality are extracted and placed in the field-operable smart key, eliminating retrieval time while maintaining security through electronic authorization protocols
Solution Approach 2:
The smart key system enables field staff to independently access authorized locks without needing to retrieve physical keys from a key cabinet or receive manual key distribution. The smart key autonomously communicates with the lock, performs authorization verification, and executes the unlocking operation, making the entire key management process self-service and instantaneous
3Ease of operation
If manual key retrieval is performed, then flexibility in access is maintained, but human errors increase and operational delays occur
Solution Approach 1:
The smart key system incorporates real-time feedback through the RFID communication between the smart key and lock. The lock-ID detector reads the lock's unique identifier, the control module verifies authorization status, and the system provides immediate feedback on whether the lock should be unlocked. This automated feedback loop eliminates human judgment errors while maintaining operational flexibility
Solution Approach 2:
The smart key performs preliminary authorization verification before enabling the unlocking mechanism. The control module checks authorization status and configures the rotation stopper in advance based on the detected lock ID, ensuring that only authorized unlocks are permitted. This preliminary electronic verification prevents errors before the mechanical unlocking action occurs
4Ease of operation
If a single smart key is used for multiple locks, then key management is simplified, but unauthorized access risks increase
Solution Approach 1:
The smart key system implements local quality control by giving each lock a unique lock ID and configuring authorization permissions specifically for each lock-ID combination. The control module within the smart key contains authorization data that is tailored to specific locks, ensuring that the single smart key cannot unlock any lock for which it lacks specific authorization, thus preventing unauthorized access while maintaining simplicity
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 system streamlines key management, reduces errors, and enhances operational efficiency by allowing a single smart key to unlock multiple locks securely, with automated logging and error prevention, thus minimizing delays and ensuring compliance with safety and regulation requirements.
Implementation Method 1
the lock further includes a radio-frequency identification (RFID) tag configured to store the lock ID, and the lock-ID detector is an RFID reader
Data Source
AI summary
One embodiment of the present invention provides a lock-and-key system for an electrical power plant. The system includes a plurality of locks and a smart key. A respective lock is installed with a standardized lock core, and the lock is associated with a lock identifier (ID). The smart key includes a key head that matches the standardized lock core; a lock-ID detector configured to detect the lock ID; a rotation stopper which, when enabled, is configured to prevent rotation of the key head while the key head is inserted into the standardized lock core; and a control module configured to disable the rotation stopper based on the detected lock ID, thereby facilitating the smart key to unlock the lock by rotating the key head.