30-09-2014, 01:30 PM
Abstracts: In today’s world, there is a continuous need for automatic appliances with the increase in standard of living; there is a sense of urgency for developing circuits that would ease the complexity of life. Automation is basically the delegation of human controlled functions to technical equipment for the purpose of increasing productivity, reducing cost increasing quality and increasing safety in working condition. The objective of this project is to make a PLC based model to count number of persons visiting particular room and accordingly light up the room. Here we can use sensor and from that we can know present number of persons. Then, we connect power appliances to other output devices (i.e. fan, speaker, door, light…etc) for central controlling.