Touchscreen Biosensor Trajectory Verification for Authentication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing authentication systems using biological information detection on touchscreen panels face challenges in accurately detecting biological information due to varying finger proximity, leading to inconsistent authentication results.
Innovation Solution
A detection device and method that incorporate a touchscreen panel with a biosensor and position sensor to determine if the user has operated along a predetermined trajectory, allowing for accurate acquisition of biological information when the trajectory is detected, thereby enhancing authentication accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a biosensor is used to detect biological information on a touchscreen panel, then authentication can be performed, but detection accuracy deteriorates when finger proximity varies
Solution Approach 1:
The system performs preliminary verification by detecting whether the user's finger has moved along a predetermined trajectory before attempting to acquire biological information. This preliminary action ensures that biological information is only acquired when the finger is in the correct position and maintaining proper contact, thereby preventing detection errors caused by varying proximity.
Solution Approach 2:
The system continuously monitors the operating position of the user's finger and provides feedback by determining whether the finger has followed the predetermined trajectory. Based on this feedback, the system decides whether to acquire biological information, creating a closed-loop control system that maintains detection accuracy.
2Ease of operation
If the finger is made proximate to the touchscreen panel for biological information detection, then authentication can be performed, but detection consistency deteriorates due to varying proximity states
Solution Approach 1:
Before acquiring biological information, the system performs a preliminary check to verify that the finger has moved along the predetermined trajectory. This preliminary action establishes stable detection conditions by ensuring the finger is in the correct position, thereby maintaining detection consistency while keeping the operation simple for the user.
Solution Approach 2:
The system changes the detection parameter from simply detecting presence to verifying trajectory compliance. By requiring the finger to follow a predetermined trajectory, the system transforms the detection condition into a more stable and verifiable parameter, ensuring consistent detection results regardless of minor variations in finger proximity.
3Productivity
If biological information is acquired continuously, then authentication speed is improved, but detection accuracy deteriorates due to inappropriate timing
Solution Approach 1:
The system performs a preliminary verification step by checking whether the finger has completed the predetermined trajectory before acquiring biological information. This preliminary action ensures that information is acquired only at the appropriate moment when the finger is in the correct position, maintaining high detection accuracy while preserving authentication speed.
Solution Approach 2:
The system maintains continuous monitoring of the finger's position and trajectory, ensuring that the useful action of biological information acquisition occurs continuously but only when the predetermined conditions are met. This approach prevents wasted acquisition attempts at inappropriate moments while maintaining rapid authentication.
Data Source
AI summary
A detection device comprising: an input unit configured to receive an operation of a user; a biosensor provided on the input unit and configured to detect biological information on the user; a position sensor configured to detect an operating position that is a position on the input unit where the user has performed the operation; and a controller, wherein the controller comprises: an operation determination unit configured to determine, based on the operating position detected by the position sensor, whether the user has operated the input unit along a predetermined trajectory; and a biological information acquirer configured to, when the user is determined to have operated the input unit along the predetermined trajectory, acquire, from the biosensor, the biological information on the user when the user has operated the input unit along the predetermined trajectory.