| 摘要 |
PURPOSE:To provide optimum illuminance without resorting to human sense by giving the operation of a dimming control part, which is installed at the illumination fixture, a priority to a dimming command from a centralized control device when the illumination fixture to control a dimming unit on the basis of a dimming command signal is radio controlled by a remote control part with a built-in illumination comparing/judging part. CONSTITUTION:An illumination fixture 14 is composed of a signal reception control unit 24 with an incorporated light source 21, dimming unit 22, dimming control part 25, address setting part 26, signal receiver part 27, and monitor 29, and this is radio controlled by a remote control part 15 having a power supply 45, illuminance sensing part 41, illuminance comparator part 42, illuminance setting part 43, and signal sendout part 44. In this constitution, the dimming control part 25 in the fixture 14 is composed of a signal read part 31, output circuit 32, and clear circuit 33, among which the read part 31 shall be capable of being fed with a signal from an external centralized control device using electric wiring 12, and also the dimming unit 22 capable of being fed by another wiring 13, wherein the output from the control part 25 shall be given a priority to external signal, which be used only when necessary. |
