Biometric Anti-Theft Lock Using Image Verification
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Solution Overview
Problem
Conventional electronic locks using door access cards or remote controls face safety risks due to the potential misuse of lost or stolen cards/controls, as anyone can use the stored information to release the anti-theft state, compromising security.
Innovation Solution
An anti-theft control system and method that stores identification and authentication information, where the anti-theft state is released only when the inputted information matches the stored comparison and authentication data, using a microprocessor and image pick-up device to verify the information, ensuring secure unlocking and controlling of devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If door access card or remote controller is used to unlock, then ease of operation is improved, but security reliability deteriorates because lost cards can be misused
Solution Approach 1:
The unlocking process is divided into two independent segments: first, the user inputs identification information (such as fingerprint or facial recognition) to verify identity; second, only after successful verification does the system release the authentication information to unlock the door. This segmentation ensures that even if the access card is lost, the lost card alone cannot trigger unlocking without the corresponding biological authentication.
Solution Approach 2:
The system introduces an intermediary authentication mechanism (biometric verification module) between the access card reading and the door unlocking functions. This intermediary layer verifies the user's identity through biological features before allowing the access card to execute its unlocking function, thereby preventing misuse of lost cards.
2Ease of operation
If authentication information is stored on the access card, then ease of operation is improved, but loss of information worsens when the card is lost or stolen
Solution Approach 1:
The authentication information is extracted from the access card and relocated to the central control system's database. The access card only stores a simplified identification reference, while the actual authentication data (biometric templates, encryption keys) is stored securely in the control system. This extraction prevents information loss even if the card is lost, as the critical authentication data remains in the secure central system.
Solution Approach 2:
Instead of storing the original authentication information on the card, the system creates a copy of the authentication data in the central control system's database. The card holds only a reference or encrypted version, while the full authentication information is replicated in the secure database, ensuring that loss of the physical card does not result in loss of authentication capability.
Data Source
AI summary
An anti-theft control system includes an electronic key and anti-theft equipment. The electronic key includes a display. The electronic key carries out a first identification step to decide the display whether to show an authentication information related to a user of the electronic key. An image pick-up device of the anti-theft equipment reads the authentication information on the display and determines whether to release the anti-theft state. If the electronic key is lost, a person picking up the electronic key cannot pass the verification of the first identification step and, thus, cannot use the electronic key to control the anti-theft equipment. An anti-theft control method can be carried out using the anti-theft control system.