| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an illumination control system capable of suppressing a power amount supplied to a communication unit of an illuminating device. <P>SOLUTION: An illuminating device comprises a lighting circuit unit 12 having a light source 12b, a lighting controller 12d controlling lighting of the light source 12b, and a first power supply section 12a supplying power to the light source 12b. The illuminating device also comprises a communication unit 13 having a communication section 13b performing communication with a monitoring unit via a communication line C, a voltage detector 13d detecting voltage of the first power supply section 12a, a controller 13c controlling the communication section 13b and the voltage detector 13d, and a second power supply section 13a that can supply power on the basis of voltage from the monitoring unit. The communication unit 13 has switches SW1 and SW2 for supplying power from the first power supply section 12a at a normal time, and switching over to power supply from the second power supply section 13a when the voltage detector 13d detects a threshold. When power supply is switched over to the second power supply section 13a, an abnormality information signal is transmitted to the monitoring unit. <P>COPYRIGHT: (C)2013,JPO&INPIT |
