| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a low-cost illumination control system of dispersion type to allow use of a portable terminal unit. SOLUTION: A lighting control device, a fixed type terminal unit, and portable terminal unit 18 mounted removably are connected with a transmission line 14 to form an illumination control system 11. The terminal units 18 constitute a dispersion type system to monitor and control the lighting control device and manage the condition of other terminal unit 18. When the portable terminal unit 18 is connected, it sends off a terminal connection signal and registration is made in the other terminal unit 18. When the portable terminal unit 18 is removed, a removal signal transmitting means 36 installed on a connector means 31 where the terminal unit 18 is connected sends off a terminal unit remove signal, and registration of the other terminal unit 18 is erased.</p> |
