Vein Authentication Door Handle with Rotating Camera
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Solution Overview
Problem
Conventional door unlocking methods using keypads require password input, which can be inconvenient and increases the risk of unauthorized access and exposure to germs.
Innovation Solution
A door handle equipped with a vein authentication function that uses a camera to photograph and authenticate a user's vein without the need for password input, utilizing a sensor to detect hand proximity and a gear system to rotate the camera for precise vein capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a keypad and password input method are used for door unlocking, then authentication security is improved, but user convenience deteriorates and the risk of unauthorized access increases
Solution Approach 1:
The patent replaces the mechanical keypad input system with a biological authentication system using vein recognition. The camera captures vein patterns from the user's hand, and the controller authenticates based on these biological features, eliminating the need for mechanical password input and improving both convenience and security.
Solution Approach 2:
The patent creates a digital copy of the user's vein pattern through camera imaging. Instead of requiring physical password entry, the system captures and stores vein pattern information as a digital replica, which can then be used for authentication without direct user input, thereby improving convenience while maintaining security.
2Reliability
If a keypad and password input method are used for door unlocking, then authentication security is improved, but the risk of unauthorized access and germ transmission increases
Solution Approach 1:
The patent eliminates direct physical contact with the door handle by replacing the keypad mechanism with a camera-based vein recognition system. The camera captures vein patterns from a distance, and authentication occurs through digital processing, thereby eliminating the germ transmission risk associated with touching the keypad while maintaining security.
Solution Approach 2:
The patent introduces a camera as an intermediary between the user and the door locking mechanism. Instead of direct contact with the keypad, the camera captures vein pattern information remotely, serving as a non-contact intermediary that maintains authentication security while eliminating germ transmission risks.
3Device complexity
If a fixed camera position is used for vein authentication, then device complexity is reduced, but measurement precision deteriorates
Solution Approach 1:
The patent transitions from a fixed camera position to a movable camera system that can rotate and adjust its orientation. The camera rotates to different angles based on the user's hand position, dynamically adapting to capture the vein pattern with maximum precision while maintaining relatively simple device architecture through the use of a single rotating camera unit.
Data Source
AI summary
There is disclosed a door handle having a vein authentication function including a housing provided in a door; a sensor provided in the housing for sensing a user's hand touching the housing or located in a preset region; a controller receiving a measured value from the sensor part; and an authentication part operating based on a control signal of the controller, photographing the user's hand and transmitting the photograph of the user's hand to the controller, wherein the authentication part has a photographing angle that is variable based on a position of the user's hand.