REAL TIME CLOCK BASED SOLAR LED STREET LIGHT AUTOMATION USING DALLAS RTC AND I2C PROTOCO

REAL TIME CLOCK BASED SOLAR LED STREET LIGHT AUTOMATION USING DALLAS RTC AND I2C PROTOCOL

ABSTRACT:

             Form  olden  days  we  re  using  non  renewable  sources  of  energy  in  excess mount  for  our  needs.  As this type of minerals  like  coal etc  are  exhausting so we  have  to  depend  on  the  renewable  sources  of  energy  like  solar,  wind,  etc.  For  smaller application it is better to use renewable energy.  

                              As  this  project  is  based  on  streetlight  automation  and required Ac supply. So  for this particular  application we  are  using solar  panels to charge the DC battery and the power from the battery can be used for this application. Advertising  hoardings,  commercial  sign  boards,  and  street  lights  are  generally  switched on  at 6:30 pm  and switched off  at  10:00 am  because nobody  is  available  at  the  place  in he  morning  to  switch  it  off.  But  actual required time  is  6:30pm to 11:30pm  and  4:30am to  6:30am.  Meantime  i.e.,  from  11:30pm  to  4:30am  is  not  required,  because  the  public flow  on  the  roads  is  almost  nil  in  this  time.  And  from  6:30am  to  10:00am  is  also  not required as the sun  light  is  available  during this time.  That  means  every day  around  nine hours  of  power  is  wasted.  This  project  gives  the  best  solution  for  electrical  energy wastage. Also the manual operation of the lighting system is completely eliminated. The  Project  AT89S8252  Microcontroller  Based  Energy  saver  for  Commercial Lighting  system  with  RTC  DS1307  Interfacing  is  an  interesting  project  which  uses AT89S8252 microcontroller as its  brain. This  project  is  very useful  for commercial sign boards,  advertising  boards,  street  lights  for  automation  lighting  system.  This  system switches  on  the lights  only at  preprogrammed  timings.  As  the DS1307  Real  Time Clock chip  with  battery  back-up  is  used,  there  will  be  no  disturbances  for  the  programmed on/off timings even in power failures. 

advantages:

•         simple to construct
•          efficiant usage of power

applications:

•          industries
•         house 

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