Wireless Smart Key Face Recognition Access Control
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Solution Overview
Problem
Traditional entrance security systems rely on physical keys or electronic devices with batteries, which can be inconvenient and require constant possession, lacking efficient and secure wireless identification methods for access control.
Innovation Solution
An intelligent entrance guard unlocking system that uses a powerless smart key and an intelligent entrance guard with wireless electromagnetic induction to power and authenticate users via face recognition and identification codes, allowing secure and contactless access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a physical key is used for entrance control, then the system is simple to implement, but the operator must maintain possession of the physical key which is inconvenient and less secure
Solution Approach 1:
The patent replaces the mechanical physical key system with an electronic smart key system that uses electronic identification. The smart key contains an electronic chip with identification information that can be read by a corresponding reader, eliminating the need for physical key possession while maintaining security through electronic verification mechanisms.
Solution Approach 2:
The patent uses electronic copies of identification information stored on the smart key chip rather than relying on the unique physical key. The system stores identification data that can be verified electronically, allowing multiple copies of the identification information to exist while maintaining security through controlled access and verification protocols.
2Reliability
If electronic devices with batteries are used for entrance control, then access can be controlled electronically, but the system requires batteries to operate which adds complexity and maintenance requirements
Solution Approach 1:
The patent extracts the power source requirement from the smart key by designing it as a passive electronic device that does not contain a battery. Instead, the smart key uses electromagnetic induction to receive power temporarily during operation, eliminating the need for internal power sources while maintaining electronic identification capabilities.
Solution Approach 2:
The patent introduces an electromagnetic field as an intermediary energy transfer mechanism between the fixed installation and the mobile smart key. The electromagnetic field serves as a mediator that transfers energy wirelessly from the fixed reader to the passive smart key, enabling operation without batteries or wired connections.
3Reliability
If traditional electronic access systems are used, then access control is possible, but they do not effectively verify user identity which reduces security
Solution Approach 1:
The patent combines multiple verification functions into a single integrated system that simultaneously checks identification information and captures facial images. The smart key system performs both electronic identification verification and biometric facial recognition, providing multi-factor authentication that enhances both security and verification accuracy.
Solution Approach 2:
The patent implements a feedback mechanism where the system captures facial images and compares them against stored reference images to verify user identity. The system provides real-time feedback on whether the presented identification and facial characteristics match the authorized user, enabling accurate biometric verification to enhance security.
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 secure, contactless, and efficient access control by automatically powering the smart key and verifying user identity through face recognition and codes, enhancing convenience and security without the need for physical key possession.
Implementation Method 1
uses a powerless smart key and an intelligent entrance guard with a power unit, current transmitter, and facial recognition module to wirelessly transmit and verify identity information
Data Source
AI summary
An intelligent entrance guard unlocking method includes: transmitting electric energy of a power unit of a intelligent entrance guard in a wireless electromagnetic radiation via a transmit coil; receiving the electric energy via a receiver coil of a powerless smart key; capturing a face image of an user and storing the face image in a second storage unit of the powerless smart key; controlling a wireless transmit unit of the powerless smart key to transmit a wireless signal containing the face image to the intelligent entrance guard; obtaining a predefined face image from a first storage unit of the intelligent entrance guard and comparing the face image with the predefined face image; unlocking the intelligent entrance guard when the face image matches with the predefined face image and not unlocking the intelligent entrance guard when the face image does not match with the predefined face image.