RFID Lock Access Control With Rewritable Time-Based Authentication
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Solution Overview
Problem
Existing RFID-based lock management systems do not support time-based restrictions on utilization without requiring users to perform complex operations, allowing unrestricted access for users with valid authentication data.
Innovation Solution
A lock management system utilizing a switching apparatus, a rewritable RFID tag, and a reading and writing apparatus to enforce time-based restrictions by writing and reading authentication information using electromagnetic waves, allowing the system to switch lock states based on scheduled utilization terms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If authentication information is stored in RFID tags to enable automatic access, then ease of operation is improved, but time-based restriction capability deteriorates
Solution Approach 1:
The patent applies dynamics by making the authentication information in the RFID tag changeable over time. The storage area is designed to be rewritable, allowing the authentication information to be updated dynamically based on time-based restrictions. This enables the system to maintain automatic access convenience while adding time-based restriction capability through dynamic updates to the authentication data.
Solution Approach 2:
The patent changes the parameter of authentication information from static to dynamic. By enabling the RFID tag's storage area to be rewritten with updated authentication information that reflects current time-based restrictions, the system maintains ease of operation (automatic access) while improving adaptability to time-based control requirements.
2Device complexity
If authentication information is made static in RFID tags, then system simplicity is maintained, but flexibility for time-based control is lost
Solution Approach 1:
The patent introduces dynamics to the authentication information storage by designing the RFID tag's storage area to be rewritable. This allows the system to maintain relative simplicity while adding the capability to update authentication information dynamically according to time-based restrictions, thereby achieving flexibility without significant complexity increase.
Solution Approach 2:
The system performs preliminary action by pre-configuring the RFID tag with authentication information and establishing the capability to rewrite it. The management apparatus can pre-write authentication data and schedule future rewrites based on time-based restrictions, enabling flexible control while maintaining system simplicity through centralized management.
3Reliability
If users must perform operations to check authentication status, then time-based restriction accuracy is improved, but ease of operation deteriorates
Solution Approach 1:
The patent applies self-service by enabling the RFID tag to automatically provide updated authentication information without requiring user intervention. The tag's storage area can be rewritten with current authentication status, and the tag automatically presents this information to the reader, eliminating the need for users to perform operations to check authentication status while maintaining accurate time-based restrictions.
Solution Approach 2:
The system implements feedback by continuously updating the authentication information in the RFID tag and having the tag automatically provide this updated information during reading operations. This feedback mechanism ensures that the authentication status always reflects current time-based restrictions without requiring users to manually check or perform operations to obtain accurate information.
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
Enables time-based control of lock utilization without user complexity, enhancing security and management efficiency by automating lock state changes based on predefined schedules.
Implementation Method 1
a reading apparatus connected to the switching apparatus and capable of reading information from an RFID tag, wherein the reading apparatus is configured to read the authentication information sent back from the first RFID tag utilizing energy of an electromagnetic wave emitted by the reading apparatus
Data Source
AI summary
A lock management system includes: a switching apparatus capable of switching a state of a lock target between a locked state and an unlocked state; a writing apparatus configured to write authentication information in a first storage area of a first RFID tag based on utilization schedule information related to the lock target; and a reading apparatus connected to the switching apparatus, and configured to read the authentication information sent back from the first RFID tag utilizing energy of an emitted electromagnetic wave, and to cause the switching apparatus to switch a state of the lock target in a case where authentication based on the read authentication information is successful.