22-06-2013, 04:05 PM
A MINOR PROJECT REPORT ON INTELLIGENT STREET LIGHT
INTELLIGENT STREET.docx (Size: 55.44 KB / Downloads: 32)
Abstract
This project aims at designing and executing the advanced development in embedded systems for energy saving of street lights with light depending resistor and PIR Sensor. Nowadays, human has become too busy and he is unable to find time even to switch the lights wherever not necessary. This can be seen more effectively in the case of street lights. The present system is like, the street lights will be switched on in the evening before the sun sets and they are switched off the next day morning after there is sufficient light on the roads. But the actual timings for these street lights to be switched on are when there is absolute darkness. With this, the power will be wasted up to some extent. This project gives the best solution for electrical power wastage. Also the manual operation of the lighting system is completely eliminated.
In our project we are using LDR, which varies according to the amount of light falling on its surface, this give an indication for us whether it is a day/night time. We have placed PIR sensors in both sides of the road, which can be controlled by Micro controller (PIC16F887).The PIR‘s will be activated only on the night time. If any Motion crosses the PIR, automatically particular light will be ON, for few seconds.
In our project we use 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.
The programming language used for developing the software to the microcontroller is Embedded/C. The MP LAB cross compiler is used to edit, compile and debug this program. Here in our application we are using microcontroller (PIC16F887) which is Flash Programmable IC. We believe that our idea provides better than the existing system.
In the present project street lights are taken into consideration where the above discussed factors are rectified in them. This is achieved with the help of an embedded system. By using this as the basic principle we can design centralized intelligent system for the perfect usage of streetlights in any place (Viz Village, Town) can be developed.