| 小波变换在松动件检测系统报警中的应用研究 |
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| 引用本文： | 方立先,楼永坚,倪益华,陈仲仪.小波变换在松动件检测系统报警中的应用研究[J].原子能科学技术,2004,38(5):432-435. |
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| 作者姓名： | 方立先 楼永坚 倪益华 陈仲仪 |
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| 作者单位： | 1. 杭州电子工业学院,浙江,杭州,310012
2. 浙江大学,机械系,浙江,杭州,310027 |
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| 摘 要： | 研究了小波变换在松动件检测系统(LPMS)报警中的应用。在分析LPMS中产生误报主要原因的基础上，结合小波时-频域分析特点，提出了基于小波均方值报警理论，并以秦山核电站一号机组为例，选择相对噪声较小的尺度作为报警基准，能有效地抑制背景噪声对报警的影响。该文提出的RMS阈值和RMS时间宽度阈值的双阈值小波报警算法，使得报警更加可靠。
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| 关 键 词： | 报警 小波变换 双阈值 检测系统 算法 误报 RMS 松动 抑制 影响 |
| 文章编号： | 1000-6931(2004)05-0432-04 |
Application study on wavelet-transformation to alarming in loose parts monitoring system |
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| FANG Li-xian,LOU Yong-jian,Ni Yi-hua,CHEN Zhong-yi.Application study on wavelet-transformation to alarming in loose parts monitoring system[J].Atomic Energy Science and Technology,2004,38(5):432-435. |
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| Authors: | FANG Li-xian LOU Yong-jian Ni Yi-hua CHEN Zhong-yi |
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| Affiliation: | FANG Li-xian~1,LOU Yong-jian~1,Ni Yi-hua~2,CHEN Zhong-yi~2 |
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| Abstract: | The application of wavelet-transformation to alarming in loose parts monitoring system(LPMS) was studied. On the base of analyzing the main factor to the erroralarming in LPMS,the alarming theory in view of wavelet's RMS was established by choosing minor scale of relative noise as alarming datum point,and the base noise which affect alarm was checked effectively.Moreover RMS threshold and time width RMS threshold wavelet alarming algorithm were adopted,all make the alarm more dependable. |
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| Keywords: | loose parts monitoring system wavelet-transformation alarming |
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