고효율 LED 조명시스템 구축을 위한 유무선 통합 및 웹기반 정보시스템 개발에 관한 연구

Abstract

Modern civilization demands to implement lighting beyond simply switching lights on/off. Users want an intelligent lighting control system that could pursuit comfortable spaces through lighting, at the same time, reduce electrical energy, and re-operate by detecting the surrounding luminance and objects. For the lighting control system in these circumstances, it should necessarily achieve, first, the improvement of its energy saving function, second, technological convergence of IT and lighting, and third, advances in the convergence. For the LED lighting emerged as an alternative of such a trend, it should make a greater effort of reducing energy by making the LED lighting itself more efficient and by improving the reliability of lighting control system. In particular, the ZigBee communication method, which is the most frequently applied to the LED lighting control system, has drawbacks of low-speed and low-capacity, and the communication failure possibility due to environmental influences is on the rise. Therefore, it is important to secure the communication reliability by applying an integrated interface with a wire-wireless dual-network. This paper developed a communication module, which has a platform converging and combining the ZigBee of USN environments with the PLC of power line communication environments, to implement a dualized communication interface system supporting the wire-wireless integrated protocol, and implemented a wire-wireless networking device and a control system software technology for efficiently controlling special-purpose lighting including indoor, outdoor and landscape lighting by developing smart dimmers and smart energy meters. In addition, it developed an integrated management system that improves the remote integrated control function and energy management efficiency of LED lighting to minimize energy consumption, and verified its effect. As a result, it was automatically switched into the PLC communication within 4.4 seconds on average when there was an access failure in the ZigBee communication network, so a reliable communication network was built, and could have an effect of reducing electrical energy by 78.8% compared to the case of using the existing fluorescent lamp as a result of monitoring the lighting control system. Communication reliability, which could carry out proper measures when there is a communication problem, could be secured by developing a dualized interface device interoperating the control of wireless communication (ZigBee) with the wired communication (PLC) through the result of this study, so it could be applied usefully to the security and disaster preparation such as tunnel beacons. In addition, its application scope could be widened even to the indoor and outdoor lighting fields by presenting a standard of the Web-based user monitoring interface and the real-time remote control and management technologies. In addition, a smart energy meter could be implemented because it secured easy wiring, reliable control, efficient general-purpose LED fine control driver and dimming control technologies.