Design of Intelligent Blind Control System to Save Lighting Energy and Prevent Glare

Abstract

Glass walls for exterior building can help save energy as increase inflow of natural sunlight. However, when sunlight directly reaches on floor, it can be occurred reflection glare, and visual discomfort. A blind can be in charge of preventing glare, but over prevention of sunlight affects increase of lighting energy. In this paper, we propose intelligent blind control system using electric venetian blind, which consists of multiple slats, and can be controlled slat angle and heights to prevent glare and to save lighting energy. The proposed system controls slat angle and heights of blind according to altitude of sun. Also, the system guarantees brightness on the floor by additional compensation of slat angle and heights of blind according to brightness on the floor measured by luminance meter.