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FINGER PRINT BASED BANK LOCKER SYSTEM
ABSTRACT
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 more easily 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

2. authorized to enter into the locker 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 8051 microcontroller. By using this controller we
will be controlling the scanning process. After the scanning has been completed
the person has to enter the unique id which is given to him to open his locker
with the help of a keypad. Immediately the locker will be opened. After the
work has been completed if a switch is pressed the locker will be closed again.
If an unauthorized person tries to scan his image then an indication will be
given by a buzzer which is interfaced to the controller.
This 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 output of secondary of 230/12V step down transformer.
BLOCK DIAGRAM