The developed system provides an energy efficient lighting management strategy in which the controller controls the lighting level in a room based on the occupancy of the room and the natural daylight available in the room. For the digital control of LED lamps, the design contains a lighting controller implemented on Spartan XC3S400-PQ208 FPGA. The lighting system is controlled as per the PWM signals generated in the FPGA according to the logic developed based on the illuminance level. The LED is controlled using a driver which changes the light output with respect to the PWM signals generated. This research is the rapid prototype of a big system, so that by taking the advantage of FPGA, more number of logics can be added into the developed control system. Through this prototype, it is possible to develop a more convenient and cost effective solution to our home automation problems and reduce the energy wastage and thereby the electricity charges.
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