In order to make a daylight responsive dimming system itself more flexible and reliable in both control method and sytem operation, a new system contoled by a computer software progarm has been developed. The light output from the dimmed luminaires is determined by the selected control algorithm, or is manually controlled in the computer software program. In this paper, the components of such a system are described, and the quantitiative aspect of system performance has been evaluated. The results show accuracy adn reliability on system performance. The workplane illuminance is maintained relatively close to the target level, and 30-70/100 of total lighting energy can be saved accordingly.
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