| 摘要 |
PURPOSE:To improve the habitability and visual environment of the installation place of a lighting fixture by calculating the dimming data from a main operation panel and the set values of setters of terminal units to control lighting channels. CONSTITUTION:Dimming data are sent to a transmission line 3 based on the time schedule data stored in advance in a main operation panel 1 or in response to the operation of an operation switch provided on the main operation panel 1. In individual terminal units 5-1, 5-2..., when the address information contained in the dimming data on the transmission line indicates the addresses of the terminal units, the dimming data are picked up. A memory or allocating switch storing the information indicating to which channel each level setter 9 corresponds and by which channel or level setter 9 the local dimming or proper illuminance setting is performed is provided in the terminal unit. Each terminal unit performs the level correction of the corresponding lighting load 7 in response to the set state of each setter 9, the optimum lighting control for the installation position can be performed. |
