Access Control Camera Angle Adjustment for Facial Recognition
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Solution Overview
Problem
Conventional access control devices with facial recognition technology have fixed camera angles, which are not user-friendly for individuals of varying heights and require users to adjust their position to achieve satisfactory recognition, causing inconvenience and reducing recognition success rates.
Innovation Solution
The access control device features a camera module with adjustable photographing angles through up/down and leftward/rightward adjustments, enabled by a rotating mechanism driven by motors and transmission assemblies, allowing automatic or manual control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the camera is installed at a fixed position on the door panel, then the device structure is simple and stable, but the photographing angle is fixed which causes inconvenience for users of different heights
Solution Approach 1:
The camera module is transformed from a fixed position to a dynamically adjustable position through a rotating mechanism. The camera can rotate horizontally and tilt vertically under motor control, allowing the photographing angle to adapt to users of different heights and positions while maintaining a relatively simple overall device structure.
Solution Approach 2:
The camera module is designed to perform multiple functions by adjusting its photographing angle. It can accommodate various user scenarios including standing users, sitting users in wheelchairs, and users at different positions, making the access control device universally applicable to diverse user groups without requiring multiple devices.
2Reliability
If the camera photographing angle is fixed, then the device structure is simple, but the recognition success rate decreases for users who cannot adjust their position
Solution Approach 1:
The camera module incorporates a rotating mechanism with horizontal and vertical rotation capabilities, allowing dynamic adjustment of the photographing angle. This ensures that users of different heights and positions can be captured within the camera's field of view, significantly improving facial recognition success rates while adding only moderate structural complexity through standardized motorized components.
Solution Approach 2:
The system includes sensors that detect user presence and automatically adjust the camera photographing angle to optimize facial recognition. The device performs self-adjustment without requiring manual intervention, improving recognition success rate for various users while keeping the operational interface simple.
3Ease of operation
If users must adjust their position to match the camera angle, then the camera structure remains simple, but user convenience and accessibility are reduced
Solution Approach 1:
The camera module is equipped with a rotating mechanism that enables horizontal and vertical angle adjustment through motor control. This dynamic positioning capability allows the camera to adapt to users of different heights and positions, eliminating the need for users to bend over, squat, or position themselves specifically, thereby greatly improving user convenience and accessibility.
Solution Approach 2:
The system incorporates sensors to detect user presence and automatically adjusts the camera photographing angle to capture the user's face optimally. This automatic adjustment occurs without user intervention, making the system particularly friendly to users with mobility limitations who cannot perform positioning adjustments themselves.
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
The device enhances user convenience and recognition success by accommodating different user heights and positions, expanding the field of view and improving recognition accuracy.
Implementation Method 1
The first driving motor is disposed within the main body and drivingly coupled to the first rotating shaft. The first driving motor drives rotation of the first rotating shaft.
Implementation Method 2
The second driving motor is disposed within the main body and drivingly coupled to the second rotating shaft. The second driving motor drives rotation of the second rotating shaft.
Implementation Method 3
The rotating mechanism is pivotally coupled to the main body through the second rotating shaft.
Data Source
AI summary
An access control device includes a main body, a rotating mechanism, a camera module, a first driving motor and a second driving motor. The rotating mechanism includes a first rotating shaft and a second rotating shaft. The rotating mechanism is pivotally coupled to the main body through the second rotating shaft. The camera module is fixed on the first rotating shaft. The first driving motor is drivingly coupled to the first rotating shaft. The first driving motor drives rotation of the first rotating shaft. Consequently, a photographing angle of the camera module is adjusted in a first angular range. The second driving motor is drivingly coupled to the second rotating shaft. The second driving motor drives rotation of the second rotating shaft. Consequently, the photographing angle of the camera module is adjusted in a second angular range.