Fingerprint based access control system
Technical
Specifications:
Title
of the project : Finger Print Based Security Access
Control
System
Domain : Biometrics & Embedded Design
Software : Embedded C, Keil, Proload
Microcontroller : AT89S52
Power
Supply : +5V, 500mA Regulated Power Supply
Display : LED 5mm, 16 X 2 LCD
Biometric
Sensor : FIM3030N
Storage
Capacity : Up to 100 finger print images
Image
Registration : Through Serial Communication
Applications : Industries, Banks, Office, Library
ABSTRACT:
According ancient Greek scripts
BIOMETRICS means study of life. Biometrics studies commonly include
fingerprint, face, iris, voice, signature, and hand geometry recognition and
verification. Many other modalities are in various stages of development and
assessment. Among these available biometric traits Finger Print proves to be
one of the best traits providing good mismatch ratio and also reliable. The
present scenario to operate a bank locker is with locks which are having keys.
By this we can’t say that we are going to provide good security to our lockers.
To provide perfect security and to make our work easier, we are taking the help
of two different technologies viz. EMBEDDED SYSTEMS and BIOMETRICS.
Firstly discussing about Biometrics
we are concentrating on Fingerprint scanning. For this we are using FIM 3030N
high voltage module as a scanner. This module has in-built ROM, DSP and RAM. In
this we can store up to 100 users fingerprints. This module can operate in 2
modes they are Master mode and User mode. We will be using Master mode to
register the fingerprints which will be stored in the ROM present on the
scanner with a unique id.
When this module is interfaced to
the microcontroller, we will be using it in user mode. In this mode, we will be
verifying the scanned images with the stored images. When coming to our
application the images of the persons who are authorized to enter into the room
will be stored in the module with a unique id. To prove that the persons are authorized to
enter that area they need to scan their images.
This scanner is interfaced to
AT89S52 microcontroller. By using this controller we will be controlling the
scanning process. After the scanning has been completed the door automatically unlocks
with the help of electric lock. If an unauthorized person tries to scan his
image then the door doesn’t opens for him.
The project uses
regulated 5V, 500mA power supply. 7805 three terminal voltage regulator is used
for voltage regulation. Bridge type full wave rectifier is used to rectify the
ac out put of secondary of 230/12V step down transformer.
BLOCK DIAGRAM:
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