| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a luminaire monitoring device in which high abnormality determining precision can be provided with simple constitution. SOLUTION: A device is provided with a current detector 12 and a voltage detector 13 inserted in an AC power line, a memory device to memorize detection data of the current detector 12 and the voltage detector 13 when all the luminaires are correct as correct time data, and an operating device to take the detection data of the current detector 12 and the voltage detector 13 to be compared with the memorized correct time voltage data to operate a corrected current value, and generate an abnormality detection signal when difference between the correct time current value and a measured current value exceeds a predetermined range.</p> |
