Wireless Fingerprint Handheld Device for Access Control
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Solution Overview
Problem
Current fingerprint identification technologies in access control systems are vulnerable to damage due to exposed control lines, which can be easily destroyed, compromising system security and reliability.
Innovation Solution
A fingerprint system and method utilizing a handheld device for scanning fingerprints, which establishes a wireless communication channel with an application server to compare encrypted fingerprint data with stored original data, ensuring secure access control and protecting the access control device from damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a controller and fingerprint identifier are integrated in an access control device with exposed control lines, then the system structure is simple, but the control lines can be easily destroyed by external forces
Solution Approach 1:
The patent introduces a handheld device as an intermediary between the user and the access control system. The handheld device contains the fingerprint identifier and communicates with the access control device wirelessly, eliminating the need for exposed control lines on the access control device while maintaining system functionality.
Solution Approach 2:
The patent extracts the fingerprint identification function from the access control device and places it in a separate handheld device. This separation removes the vulnerable control lines from the access control device, protecting them from external damage while preserving the core identification capability.
2Reliability
If fingerprint data is transmitted through wireless communication channels, then the system becomes more secure against physical damage, but data encryption and decryption processes are required
Solution Approach 1:
The handheld device automatically performs encryption of fingerprint data before transmission and decryption after reception, without requiring manual intervention. The system self-manages the security protocols, handling encryption and decryption as automatic parts of the data transmission process.
Data Source
AI summary
A fingerprint method for access control includes the steps of: providing an application server (20) for controlling access of different users; providing a database (40) connected to the application server for storing original fingerprint data of each user; scanning a fingerprint of a user through a handheld device (10), and obtaining fingerprint data of the scanned fingerprint; establishing a wireless communication channel between the handheld device and the application server, and transmitting the fingerprint data to the application server through the wireless communication channel; receiving the fingerprint data from the handheld device by the application server; determining whether the fingerprint data is the same as the original fingerprint data of the user in the database; and the user to access an access control device (30) connected to the application server if the fingerprint data is the same as the original fingerprint data stored in the database. A fingerprint system for access control is also provided.