A Preliminary Study on the Dimming Lighting Control System in consideration of Location Recognition System -Focusing on Summer Solstice-

Recently, light energy usage accounts for 20% of total energy usage in buildings, and various studies that apply IT technology to reduce energy consumption and establish an efficient controlling system have been carried out. Relevant preceding studies gave aimed to promote energy saving efficiency but lighting control has only been carried out in the zone where occupants are located, so that pleasant lighting environments have not been created. Therefore, the purpose of this study is to establish preliminary data about lighting control in consideration of general lighting based on the location of users In this study, the testbed based on an actual residence was established and the performance evaluation of the dimming lighting control, user location recognition-based dimming lighting control and user location recognition-based general lighting application control was conducted. The conclusion regarding the obtained evaluation results is as follows. 1) A flow diagram was presented in this study in order to represent the general lighting based lighting control of the user location recognition-based lighting control system that was executed in previous studies. 2) The power usage of the user location recognition-based lighting control applied with general lighting show a reduction rate of 53.5% in comparison to the dimming lighting control and an increase rate of 58.1% in comparison to the lighting system with the user location recognition-based dimming lighting control. 3) The uniformity ratio of illumination of the lighting control system applied with the user location recognition-based general lighting can be improved by 62.2% in comparison to the lighting system with the user location recognition-based dimming lighting control.