Design and development of daylight responsive RF light controller

Abstract

Integration of available daylight with artificial lighting system is indispensable for successful implementation of the concept of green building or sustainable building. In this work a daylight responsive RF light controller is designed and developed for a daylight-integrated artificial lighting system for a typical indoor space of commercial building. Sensor monitors the external daylight level and corresponding response is transmitted to the light controller wirelessly as RF signal. Light control logic is developed and embedded in the light controller to control the light output of lamps depending on the measured daylight level. The developed light controller is also capable to monitor external daylight available at different window orientations and accordingly controls the light output of different lamps groups adjacent to the respective window. The workings of the developed light control logic and the developed RF light controller are experimentally evaluated in the laboratory and results show satisfactory performance of the developed light controller.