Proposed Sensor Network for Living Environments Using Cloud Computing

Recently, global warming has become a serious world-wide problem. Green IT is recognized as one of the solutions to global warming. In particular, we know that Building and Energy Management Systems (BEMS) and Home Energy Management Systems (HEMS) are effective energy-saving schemes based on the visualization, control, and management of energy consumed by IT equipment. Sensor network technology is widely used in such systems. In a conventional HEMS, an expensive node is required to visualize the results of analyzing energy consumption. In recent years, use of a cloud has become very popular. In this study, we propose a HEMS, which is based on utilization of a cloud and a sensor network. In our method, the cloud cost can be reduced because a supersaturated cloud is reasonable and we also discuss avoiding incidents for stable cloud operation.