CAMERA INTERFACING USING ARM7 Dipak Prajapati (090580111045)

CAMERA INTERFACING USING ARM7

Dipak Prajapati (090580111045)

Introduction

In this project, VGA camera interfacing with ARM based controller LPC 2148 will be developed.

VGA camera captures image and that will be stored EEPROM IC or displayed on computer screen.

The system software driver is developed using an interactive C programming language platform.

This project describes development of a prototype of an interface between a CMOS camera and a Microcontroller. This interface allows a user to get images from the camera & saved on EEPROM IC or displayed on PC.

Block Diagram

Component Used by Circuit

Power Supply

CMOS VGA Camera

ARM 7(LPC)

MAX3232-Trans-Receiver

LCD

Resistor

Capacitor

Crystal

DB9 Cable

Circuit Diagram

Description

In real time security is major factor for any industrial or civil area. And electronic is the vast field for image processing. Here we use Advance ARM processor for image capture.

By using ARM processor we can capture image using Camera. Here we use CMOS camera which is “camera on a chip” image sensors have be- come available, It’s memory size and performance also suggest that it could be more than just a simple camera.

ARM7 is advance version of RISC(reduce set instruction computer)

As shown in circuit we need on on-chip oscillator circuit for ARM controller.

We have one LCD display board which gives us information about process going in controller like image capture start/stop, memory size, time for image capture.

We receive image form CMOS camera at connected DB9 cable which give data to the MAX3232 which is serial transceiver type chip which give serial data to the Microcontroller ARM7

LPC2144 is an ARM7TDMI-S based high-performance 32-bit RISC Microcontroller with Thumb extensions 128KB on-chip, Flash ROM with In-System Programming (ISP) and In-Application Programming (IAP), 16KB RAM, Vectored Interrupt Controller, Two 10bit ADCs with 14 channels, USB 2.0 Full Speed Device Controller, Two UARTs, one with full modem interface. Two I2C serial interfaces, Two SPI serial interfaces Two 32-bit timers, Watchdog Timer, PWM unit, Real Time Clock with optional battery backup,

Here we use this controller for digital data processing and continue Data save on EEPROM which is “Electrically Erasable Programmable  Read-Only Memory” EEPROM is a special type of PROM that can be erased by exposing it to an electrical charge.

We use EEPROM that’s why we doesn’t need to change memory place when it is full. When data on the chip is full we can erase it and again it can be used for data storage. we can use this chip up-to 10,00,000 time.

Data Flow Diagram

Pin Discription

Application

Industry Application

Security applications

Use as camera to capture image

ATM security

School Bus Camera

Bank Locker

Future work

We are planning to add sound recording option in this project

It is very compact that’s why we are plane to put GSM interface with it that’s why we can directly connect with our security camera

We are also plane to design wireless data transfer of image and that store in our memory place.

Reference

www.google.com

www.datasheet.com

MCBS Gandhinagar

Thank You