8/21/2019 1385193208automatic Street Light Controller Ppt Rajat

1/10

AUTOMATIC

STREET LIGHT

CONTROLLERBY:

Rajat Sood

1101500043

8/21/2019 1385193208automatic Street Light Controller Ppt Rajat

2/10

 TABLE OF CONTENTSSr. No. Contents

Ch.1 Introducton

Ch.! Crcutda"ra#

Ch.3 Co#$on%nt&'&%d

Ch.4 La(out

Ch.5 )or*n"

Ch.+ Ad,anta"%&

Ch.- A$$caton&

8/21/2019 1385193208automatic Street Light Controller Ppt Rajat

3/10

  INTRO/'CTION Automatic Street Light Control System is a

simple yet powerful concept, which usestransistor as a switch. By using this system

manual works are removed.By using this system energy consumption is

also reduced. the manual operation of thelighting system is completely eliminated.

By using the LDR we can operate the lights, i.e.when the light is availale then it will e in the!"" state and when it is dark then the light wille in !# state, it means LDR is inversely

 proportional to light 

8/21/2019 1385193208automatic Street Light Controller Ppt Rajat

4/10

  CIRC'IT /IARA

8/21/2019 1385193208automatic Street Light Controller Ppt Rajat

5/10

  LAYO'T

8/21/2019 1385193208automatic Street Light Controller Ppt Rajat

6/10

  CO2ONENTS 'SE/COMPONENETS QUANTITY TYPE

1. L/R 1

!. Tran&&tor ! BC10-SL100

3. R%&&tor ! R11*R!1*

4. R%a( 1 S2/T

5. 2r%&%t 1 100*

8/21/2019 1385193208automatic Street Light Controller Ppt Rajat

7/10

  )ORIN  $ he circuit diagram present here is that of a street light

that automatically switches ON when the night falls andturns OFF when the sun rises.

The circuit uses a LIGHT DEENDENT !E"I"TO! #LD!$to

sense the light %hen there is light the resistance of LD!will &e low. "o the 'oltage drop across OT !( will &ehigh . This )eeps the transistor *+ ON. The collector of*+#,-+/$ is coupled to &ase of *(#"L+$. "o *( will &eOFF and so do the relay. The &ul& will remain OFF.

  %hen night falls the resistance of LD! increases to ma)ethe 'oltage across the OT !( to decrease &elow .01.This ma)es transistor *+ OFF which in turn ma)es *( ON.The relay will &e energi2ed and the &ul& will glow.

8/21/2019 1385193208automatic Street Light Controller Ppt Rajat

8/10

  A/6ANTAESB( u&n" th& Auto#atc &(&t%# 7or &tr%%t "ht

contron" 8% can r%duc% %n%r"(con&u#$ton 9%cau&% th% #anua( o$%rat%d&tr%%t "ht& ar% not &8tch%d o $ro$%r(%,%n th% &un"ht co#%& and a&o not&8tch%d on %ar%r 9%7or% &un&%t.

In &unn( and ran( da(& ON and OFF t#%d%r notc%a9( 8hch & on% o7 th% #ajord&ad,anta"% o7 u&n" t#%r crcut& or #anuao$%raton 7or &8tchn" th% &tr%%t "ht&(&t%#.

8/21/2019 1385193208automatic Street Light Controller Ppt Rajat

9/10

  A22LICATIONSCan 9% u&%d n ho#%& a& a n"ht a#$ 9(

u&n" 9u9 o7 a 8atta"%.

A& th% na#% &u""%&t& th& can 9% u&%d n&tr%%t "ht& 8h%r% t & d

8/21/2019 1385193208automatic Street Light Controller Ppt Rajat

10/10