Fingerprint Input System Duplicate Entry Prevention
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Solution Overview
Problem
In access control systems, the manual process of storing person IDs corresponding to fingerprints leads to misoperations, resulting in duplicate fingerprints and incorrect identity associations, causing inconvenience and security issues.
Innovation Solution
A fingerprint input method that compares incoming fingerprints with a database before storage, discarding duplicates and prompting users to re-capture fingerprints when mismatches are found, ensuring unique fingerprint-person ID associations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual storage of person ID and fingerprint correspondence is performed, then flexibility in data entry is improved, but error rate increases due to manual operations
Solution Approach 1:
The system performs self-verification by automatically comparing the captured fingerprint with existing fingerprints in the database and self-correction by prompting for re-capture when mismatches are detected, eliminating the need for manual verification and reducing human error
Solution Approach 2:
The system provides immediate feedback to the operator when a fingerprint mismatch is detected, prompting re-capture of the fingerprint. This closed-loop feedback mechanism ensures data accuracy without requiring manual checking
2Measurement precision
If duplicate fingerprint checking is performed, then data accuracy is improved, but processing time increases
Solution Approach 1:
The system performs fingerprint duplication checking before storing the fingerprint data. This preliminary verification action prevents erroneous data entry while the automated comparison process minimizes time consumption through efficient database querying
3Reliability
If automated fingerprint comparison is implemented, then reliability is improved, but device complexity increases
Solution Approach 1:
The fingerprint module performs multiple functions: capturing fingerprints, comparing with database, and triggering re-capture prompts. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in system complexity while improving reliability
Data Source
AI summary
A fingerprint input method, apparatus, system and an electronic device are provided. The method includes: obtaining a fingerprint as a current fingerprint (S101); comparing the current fingerprint with a fingerprint stored in a fingerprint database (S102); storing, when it is determined that there is no fingerprint identical with the current fingerprint in the fingerprint database, the current fingerprint in the fingerprint database. It can be seen that before storing the obtained current fingerprint into the fingerprint database, it is firstly determined whether there is a fingerprint identical with the current fingerprint in the fingerprint database, and when it is determined that there is no fingerprint identical with the current fingerprint in the fingerprint database, the current fingerprint is stored in the fingerprint database, to avoid the occurrence of duplicate fingerprints in the fingerprint database, avoid the input of the duplicate fingerprints, and improve the user experience.