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S. Dervishi, A. Mahdavi:
"Recent implementation efforts in simulation-powered lighting and shading systems controls in buildings";
Talk: 10th REHVA World Congress, Antalya; 2010-05-09 - 2010-05-12; in: "clima 2010 - 10th REHVA World Congress", N. Sahin (ed.); Verlag / Organisation / Universität mit wissenschaftlichem Lektorat, (2010), 8 pages.

This paper presents the results of a recent effort to prototypically implement a new modelbased
approach to lighting systems control in buildings. Using real-time sensing and numeric
lighting simulation, this system can dynamically control the position of window blinds and
the status (on/off, dimming level) of the luminaires. The control system possesses an internal
digital representation consisting of room, sky, and occupancy models. The room model entails
information about geometry, furniture, location and size of windows, reflectance and
transmittance properties of surfaces, as well as the position of virtual sensors that monitor
pertinent performance parameters such as illuminance levels, light distribution uniformity, or
glare indices. The room model provides the basis of system's internal representation and is
updated dynamically using an optically-based location-sensing system. The Intermediate sky
model is generated on a real-time basis using global horizontal irradiance values.