| Keywords |
Energy saving ; Lighting control ; Shading device control ; Photosensor ; Task and ambient lighting |
| Abstract |
Photosensor based lighting control systems in combination with automatic shading control system were installed in offices. Photosensors were calibrated and two lighting control algorithms were applied. To maximize the daylight use, shading devices were controlled based on sun's profile angles and sky conditions. Lighting energy was saved by 57~61% compared to the manual ambient and task lighting systems. |