ppt for automatic room light control system for project submission

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automaic room light controlling system ppt

The waste of electricity is one of the main problems facing now. In our home, school, colleges or industry  see that the fan / lights are maintained even if there is no one in the room or area / passage. This happens because of negligence or because we forget to turn off the lights or when we are in a hurry. To avoid all these situations we have designed this project called "Automatic Room Light Controller with visitor counter". This project has two modules, first known as "Digital Visitor Counter" and the second module is known as "Automatic Ambient Light Controller". The main concept behind this project is known as "visitor counter" which measures the number of people entering any room as a seminar hall, conference room, classroom. This function is implemented using a pair of infrared sensors. LCD screen placed outside the room shows this value of people count. This count of people will increase if someone enters the room and at that moment the lights are on. And in reverse, the count of people will decrease if someone leaves the room. When the number of people inside the room is zero, the lights inside the room are turned off using a relay interface. In this way the relay performs the "Ambient Light Automatic Controller" operation. Since this project uses 2 infrared sensors, it can also be used as a bidirectional people counter.