Finger Print Based Voting Machine

ABSTRACT

Finger Print based voting machine is basically an embedded one. Here, the software using a microcontroller controls all the hardware components. The microcontroller plays an important role in the system. The main objective of the system is to provide the concept of the personal identity for each individual. .This requires a unique product, which has the capability to identify finger print of different persons. This is possible by a finger print module. The main parts of a finger print module are optical fingerprint sensor, high performance DSP processor and Flash. The memory is used for storing the finger prints.

As a pre-poll procedure the finger prints of all the voters are collected and stored in a database initially at time of distributing voting cards. At the time of voting, the option of the voter is taken along with the finger print. The finger print taken by the scanner is sent to the microcontroller. If the finger print is matched with the database stored in the memory then the user can vote.

BLOCK DIAGRM

Microcontroller

Finger print scanner

Memory

Power supply

Keypad

LCD

R

BLOCK DIAGRAM DESCRIPTION

Microcontroller

PIC is a family of Harvard architecture microcontrollers made by Microchip Technology. The name PIC initially referred to "Peripheral Interface Controller". Mid-Range devices feature 14-bit program word architecture and are available in 8 to 64-pin packages. These microcontrollers provide 1.8-5.5V operation, speeds up to 20 MHz; interrupt handling and an 8-level deep stack. These devices are available in various peripheral and memory configurations and feature serial analog and digital peripherals.

Finger print scanner

The scanner read the finger print and sends the corresponding digital data to the microcontroller. It consists of optical fingerprint sensor, high performance DSP processor and Flash. It boasts of functions such as fingerprint Login, fingerprint deletion, fingerprint verification, fingerprint upload, fingerprint download etc.

Memory

The memory is used to store the finger print database and the voting count. The device is optimized for use in many industrial

and commercial applications where low power and low voltage operation are essential.

LCD

The LCD is used to display the finger print matching status and voting status. This is a basic 16 character by 2 line display which utilizes the extremely common HD44780 parallel interface chip set. It will need minimum 6 general I/O pins to interface to this LCD screen. Includes LED back light. This will work in 4 bit and 8 bit mode.

Keypad

Keypad is used to access the menu and also used for voting purpose.

Power supply

Power supply module is used to provide the necessary power to all modules. Here we are using a 5v regulated dc power supply.