Application of Sky Digital Images for Controlling of Louver System

Abstract

The aim of the article is to develop a louver control method that does not involve photometric values measurement. The idea proposed by the authors is to use sky images as an actuator for controlling automated shading devices. The fundamental problem of these studies is the dynamic of changes in lighting conditions in different areas of sky. Three different models of the sky were selected. Louvers with semi-open and closed slat position were examined. Seven different scenarios, taking into account the type of radiation and window sky visual range, were built and analyzed to draw general principles for the described control method. A system was used to describe louver position in the partly cloudy model of the sky for an office building. Method has proved to be effective for blind control, but require further improvements.