_{���GSM BASED AUTOMATIC STREET} LIGHT COMTROLLER WITH INTENSITY CONTROL_� �

Presented

By

1) I.Gurunadh

2) S.Sai Harsha Vardhan Reddy

3) V.Revanth Kumar

4) G.Gopi Raj

5) T.Sai Sundeep

UNDER THE GUIDENCE OF:-

M.SASI KUMAR

NARAYANA ENGINEERING COLLEGE::NELLORE

DEPARTMENT OF ELECTRICAL AND ELECTRONICS

ABSTRACT

• The latest trend in the technologies related to wireless communication has led to the emergence of several engineering designs for human requirements.
• Commands are sent to street lights during night.
• Control street lights using mobile by sending data through SMS .
• It provides cost effective, reliable to the user to access.

INTRODUCTION

• In The Present Days Automated Systems Have Less Manual Operations ,High Flexibility.
• Our Project Is To Control The Switching Of Street Lights Automatically.
• Pir’s Sensor Which Detects The Vehicle With The Micro Controller Are Used.

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PROPOSED SYSTEM

• An embedded system is developed to control the street lights automatically.
• As of we know that according to seasons sunset varies, during winter sunsets very earlier and during summer its vice versa,
• We control lights either switching ON or OFF using GSM modem
• The brightness of the lights will change according to the vehicle moment by using PWM concept.

HARDWARE REQUIREMENTS

• Micro controller
• Power Supply
• PIR Sensor
• LCD
• Light Bulbs
• GSM Module

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BLOCK DIAGRAM

���POWER SUPPLY:-�

• We require 5v for microcontroller and 12v for GSM to operate.
• To get required voltage step down transformer, rectifiers and filtering circuits are used

POWER SUPPLY�

• All digital circuits require regulated power supply. In this article we are going to learn how to get a regulated positive supply from the mains supply.

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PASSIVE INFRARED SENSOR (PIR SENSOR)

• A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view.
• We use PIR-sensor to detect the movement of vehicles

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GSM:-�

• GSM stands for Global System

for Mobile Communication.

• It is a digital cellular technology used for transmitting mobile voice and data services.
• GSM is the most widely accepted standard in telecommunications and it is implemented globally.

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RELAY�

• A relay is an electrical switch that opens and closes under the control of another electrical circuit.
• In the original form, the switch is operated by an electromagnet to open or close one or many sets of contacts.

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LCD:

• LCD is used to display the output.
• We use16x2 LCD
• It is a 16 pin IC.
• It display’s only 32-characters.

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PIN DESCRIPTION�

AT89S52 MICRO CONTROLLER�

• The AT89S52 comes from the popular 8051 family of Atmel Microcontrollers. 
• It is an 8-bit CMOS microcontroller with 8K as Flash memory and 256 bytes of RAM.
• It has 32 I/O pins.

• The AT89S52 is a low-power, high-performance CMOS 8-bit micro controller with 8Kbytes of in-system programmable Flash memory.
• The device is manufactured Using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 micro controller.

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CIRCUIT DIAGRAM OF GSM BASED STREET LIGHT AUTOMATION

FEATURES�

• Compatible with MCS-51 Products
• 8K Bytes of In-System Programmable (ISP) Flash Memory
• 256 Bytes of RAM
• 4.0V to 5.5V Operating voltage
• Interrupt Recovery from Power-down Mode

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Basic Working Module

ADVANTAGES OF PROPOSED SYSTEM

• Brightness Control Based On Vehicle Moment
• No Man Power Required
• To Save Electricity

SOFTWARE REQUIREMENTS

• Embedded ‘C’

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THANK YOU