Biometric Recording Device with Traversable Illumination and Rest
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Solution Overview
Problem
Existing biometric data recording devices face challenges in achieving high-quality recordings within a reasonable time due to inadequate illumination and positioning of the hand or fingers, often requiring multiple recordings and complex optical arrangements, which can be distorted by support surfaces and result in delayed processing.
Innovation Solution
A device with a traversable illuminating unit and rest, equipped with a positioning control that evaluates the position, size, and direction of the hand or fingers, allowing for precise optical alignment and contactless recording, using a combination of stationary and movable elements with different light sources and sensors to optimize image capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a contactless recording method is used, then the recording quality is improved and distortion is eliminated, but the positioning precision requirement increases
Solution Approach 1:
The device employs a positioning control unit that receives feedback from a positioning sensor about the hand's position and automatically adjusts the illuminating unit and/or rest to achieve optimal optical alignment. This closed-loop feedback system resolves the contradiction by using sensor information to maintain high positioning precision automatically, enabling contactless high-quality recording without manual intervention.
Solution Approach 2:
The patent replaces complex mechanical positioning adjustments with an automated control system that uses sensors and electronic control to position the illuminating unit and rest. This substitution of mechanical adjustment mechanisms with sensor-based electronic control reduces the complexity of achieving precise positioning while maintaining high recording quality in a contactless manner.
2Reliability
If multiple recordings are required to achieve good quality, then the recording completeness is improved, but the processing time increases
Solution Approach 1:
The device performs preliminary positioning and illumination optimization before each recording attempt. The positioning sensor and control unit pre-align the illuminating unit and rest to ensure optimal optical conditions are achieved on the first attempt, eliminating the need for multiple recordings and reducing processing time while maintaining high recording completeness.
Solution Approach 2:
The positioning sensor provides real-time feedback during the recording process, allowing the control unit to make immediate adjustments to the illuminating unit and rest positioning. This feedback mechanism ensures optimal optical alignment is achieved dynamically, reducing the number of required recordings and accelerating the overall processing time while maintaining recording quality.
3Ease of operation
If support surfaces are used for hand positioning, then the ease of operation is improved, but the recording quality deteriorates due to distortion
Solution Approach 1:
The patent extracts and eliminates the support surface from the system entirely, achieving contactless recording. The hand is positioned in air without physical contact, which removes the source of distortion while maintaining ease of operation through automated positioning control. The positioning sensor and control unit compensate for the lack of physical support by automatically adjusting the illuminating unit and rest based on detected hand position.
Solution Approach 2:
The patent replaces the mechanical support surface with an automated positioning control system. Instead of relying on physical contact with a support surface, the system uses sensor-based detection and electronic control to position the illuminating unit and rest, eliminating mechanical distortion while maintaining operational ease through automated hand tracking and adjustment.
4Manufacturing precision
If complex optical arrangements are used, then the recording quality is improved, but the device complexity increases
Solution Approach 1:
The patent employs dynamic positioning of the illuminating unit and rest based on real-time feedback from the positioning sensor. Rather than using complex static optical arrangements, the system uses movable components that automatically adjust their positions to achieve optimal optical alignment, reducing the complexity of the optical system while maintaining high recording quality through adaptability.
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 solution enables fast, high-quality, distortion-free biometric data recording by ensuring perfect optical conditions, eliminating the need for support surfaces and reducing processing time through simultaneous image capture and adaptive illumination.
Implementation Method 1
The illuminating unit (3) is equipped with at least one illuminating element (34)
Implementation Method 2
a positioning sensor (40) is provided which serves for transmitting information about the position, size and/or direction of the finger(s) (5) or the hand to the positioning control (4)
Data Source
AI summary
The invention refers to a device for recording biometric data, such as lines of finger or hand. A rest is provided on the device for the hand and finger, respectively, as well as an illuminating unit. According to the invention an illuminating unit and/or rest is provided that can traverse and be positioned.