Hands-Free Door Access via Facial Recognition and Translucent Mirror
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Solution Overview
Problem
Conventional electric door locks require users to hold access cards or input codes with both hands, making it inconvenient, and often result in opaque doors that can make spaces feel oppressive when windows are not feasible for installation.
Innovation Solution
A door access system that uses a camera to identify individuals by image and controls a locking mechanism electronically, allowing hands-free operation and incorporating a double-sided mirror with a translucent reflective layer to maintain visibility while ensuring privacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional electric door locks use access cards or input devices, then door security control is achieved, but user convenience deteriorates due to hands-free operation requirement
Solution Approach 1:
The patent replaces mechanical access control methods (holding access cards, inputting codes) with an optical recognition system. The camera captures facial images and the control device processes them to automatically control the door lock, eliminating the need for physical interaction with access devices and enabling hands-free operation.
Solution Approach 2:
The system performs automatic facial recognition and door control without requiring user intervention. The camera automatically captures images, the control device processes the facial data, and the door lock is controlled automatically based on recognition results, making the system serve itself rather than requiring manual operation.
2Object-affected harmful factors
If doors are made opaque for security, then privacy protection is improved, but visual connectivity between spaces deteriorates
Solution Approach 1:
The door is designed with different optical properties in different regions. The majority of the door remains opaque for privacy protection, while specific local areas (door panels) are made transparent or translucent to allow visual connectivity. This creates local quality differences that simultaneously satisfy both privacy and visibility requirements.
Solution Approach 2:
The door structure is segmented into multiple parts with different optical characteristics. The door panels are separated from the frame and other structural elements, allowing the panels to be made transparent while the rest of the door structure remains opaque, achieving both privacy protection and visual connectivity.
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 convenient hands-free access control and maintains transparency in door installations, enhancing user experience and visual connectivity between spaces.
Implementation Method 1
The double-sided mirror includes a translucent reflective layer mounted to an outer face thereof. An intensity of a reflected portion of light reflected by the translucent reflective layer is greater than an intensity of a transmitted portion of the light transmitted through the second side to the first side of the door.
Data Source
AI summary
A door access system includes a door transmittable to light and movable between a closed position and an open position. The door includes first and second sides. A door access control device is mounted to the door. A camera is located at an inside facing the second side of the door in the closed position and is in electrical connection with the door access control device. The camera is configured to pick up an image of a passerby at an outside facing the first side of the door in the closed position and is configured to send the image of the passerby to the door access control device for identifying an identity of the passerby. A door locking device is in electrical connection with the door access control device. The door access control device is configured to set the door locking device to a locking state or an unlocking state.