| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a brightness control system realizing energy saving and resource saving at an illumination equipment. SOLUTION: A measuring instrument 1 checks the brightness of a room 10 with a brightness sensor 5 and indicates raising and lowering of a receiving voltage of a lamp 4 to a power saving device 2 according to the comparison of the brightness with the value of standard brightness set by an information treatment device 6 through a network 7. When the power consumption of the lamp 4 exceeds a prescribed value set by the information treatment device 6 through the network 7, the measuring instrument 1 informs the life end of the lamp 4 to the information treatment device 6.</p> |
