| 摘要 |
PURPOSE:To ensure plant safety by making a deduction part deduce a loose part generating place from the brought-in data, and a wave shape analysis part compare and analyze wave shape data, and by offering the information thereabout to operators. CONSTITUTION:Analogue data which is detected by a detector, is brought in from an A/D converter 9. At a deduction part 3, a position and energy deduction part 4 deduces a sound source position and a loose part generating position in such a manner of the three points measurement, and then collision energy is deduced from the perceived energy, and energy attenuation factor data by distance stored at a data storage part 7. A wave shape analysis part 5 conducts frequency analysis of the brought-in wave shape data and compares it with the standard data stored at a memory part 7, to presume whether the similarity exists or not. A deduction part 6 of abnormal sound generating cause conducts deduction, using the deduction and analysis result by the deduction part 4 and the wave shape analysis part 5, and the judgement rule which is accumulated at the memory part 7, and then displays the result therefrom on a display part 8. In this way, materials for judgement related to plant operation are offered to plant operators. |
