Sufficient sunlight supply for home care using local closed-loop shutter control system

With increasing population of elder people around the world, the demand of home care system such as sufficient sunlight supplier from natural resource is getting much attention in recent years. This paper has proposed a microprocessor (8051) based automatic shutter action control system using 4-speed controlled DC motor. The proposed system can keep sunlight moderate as desired in the indoor room. Real practical performance results are presented to demonstrate the effectiveness of the proposed approach in term of robust, simple, flexible and efficient performance.