A Study of Smart Power Control Algorithm Using RF Communication in Smart Home Environment

Today’s technologies in the IT area face the era of combination and convergence of technologies in many different areas. Through the natural interaction between people and devices in the environment where various kinds of devices are connected over a single network, they have been developing from human-oriented service technologies to smart and futuristic home technologies. Smart home technology is one of them. It is a technology of establishing a digital home in which various kinds of home appliances are connected over a home network and diverse services are provided for users regardless of time and place. Technologies in the IT area are combined with technologies in many different areas, creating and producing numerous technologies. Also, much research on smart home, the theme of this work, has actively been conducted. In this work, the use of a current booster, an AC/DC converter, and a DC/DC converter to operate electric lights; this work implements the smart power control system using standby power and RF communication, among smart home technologies. 1. Introduction 1.1. Overview of the Study Smart home refers to a home to which various digital convergence technologies are applied in the course of changing from the analogy era to the digital era. Today, regardless of place and type, digital technologies are used in every part of our life. People who lived in the past analog era now experience fast changes in their life of the present digital era. For instance, cassette tapes used in the past changed to MP3, analog TVs to digital TVs, and film cameras to digital cameras. In other words, our life is gradually changing from analogy life to digital one. The fast spreading of various digital devices, in fact, is not because of the development of the time, but because of the support of technologies helping to share a variety of information on the high speed internet. Through the internet and network, we are able to control or manage various digital devices. By connecting each one of different digital devices, we can control and manage all things that have something to do with us. As a result, smart home provides us with diverse services. Figure 1 presents a consumer service environment in a smart home [1]. Figure 1: A consumer service environment in a smart home. As shown in Figure 1, smart home includes convergence of various services, including security, health, work, energy, environment, and communication, which are connected together on a single network. One of these technologies is u-Health. u-Health has changed by various consumer service