DESIGN AND ANALYSIS OF LDR AND IR SENSORS BASED AUTOMATION SYSTEM (KEY IJP************182)

• Prof P P Patil,Prof M B Bhilwade ,Dr D. B Unde

Abstract

In today's busy world, every person wishes to reduce human effort. Nowadays Automatic systems are being preferred over manual system to make life simpler and easier in all aspects. Operating home appliances become aseasy as changing TV channels. Remote Controlled automation uses IR sensors to control home appliances using a TVDVDVCD remote. Home appliances like fan, light, radio, cooler, music system, home theatres etc can be turned ONOFF using a remote. Remote Controlled home automation is expected to work in a range of 10 meters without barrierswalls in between. The IR rays transmitted by the TV remote control will be received by IR receiver installed in the circuit. A microcontroller accesses the appliances mains and controls the load thereby controlling it. An LED would display the status of the particular appliance whether the device is ON or OFF. RC- automation would also consist of LDR dependent light control. Exterior light (light near the door way) needs to be switched on during night time, Light Dependant Resistor (LDR) is a type of sensor which actually senses the light as our eyes does. When the sunlight comes, visible to eyes it automatically switches OFF the lights. The LDR would turn on the light as soon as it senses darkness and will turn off in the morning. Remote Controlled home automation is a small step towards reducing human effort and to use technologies smartly and efficiently to human benefit.