[attachment=4356]
AUTOMATIC STREET LIGHT OPERATION THROUGH SMS

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M.Mohana Anjaneyulu - 05F01A0438
G.V.Mallikarjuna - 05F01A04B0
A.Srikanth - 05F01A0486
E.Suresh - 05F01A0493

Electronics & Communication Engineering
St.ANN’S COLLEGE OF ENGINEERING & TECHNOLOGY

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ABSTRACT

The automatic street light controller is basically operated according with the light intensity. The simple concept about this operation is that, whenever there is less intensity of natural light (i.e. less than 1.5v) then the light gets automatically on. Similarly when the light intensity is high (i.e. 5v) then the light get automatically off.

This system consists of a microcontroller,
ADC converters, power supply, LCD display board, relay
Circuit and step down transformer. This system requires LCD interfacing program and ADC converting programs; here the software called keil is used in compiling the programs. The logic behind this automatic operation is that it compares the recorded light intensity with the specified value in the program and act like wise

This system has lot of advantages than the other systems; some of them are operation of the street light automatically with out the human interference. It has the better accuracy than the others because it deals with calculation of the light intensity.

can u pls provide me the page link for the abstract on automatic light sytem

The automatic street light controller basically consists of a LDR which is used to sense the light intensity. It has high resistivity in the absence of light and very low resistivity in the presence of light. The output of the LDR is directly connected to the relay which actuates and turns on or off the light. In another system, the LDR input maybe fed to the microcontroller, which then appropriately sends out the control signals to the relay turning it ON or OFF.
In the block diagram, the LDR controls two relays, one of them to control odd number of relays and the other to control even number of relays.

For more details, see:
http://scribddoc/23545626/Automatic-Street-Light-Control

to get information about the topic "automatic street light" full report ppt and related topic refer the page link bellow

http://studentbank.in/report-automatic-s...ull-report

http://studentbank.in/report-automatic-s...ed-project

http://studentbank.in/report-automatic-s...n-tracking

http://studentbank.in/report-automatic-s...t-resistor

http://studentbank.in/report-automatic-s...rol-system

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further information related to automatic street light operation