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针对矿浆管道工况调整给泄漏检测带来的干扰
说明： 针对矿浆管道工况调整给泄漏检测带来的干扰，准确提取泄漏信号的特征量是降低泄漏误报、漏报的关键。为此，提出了一种基于经验模态分解（EMD）、Hilbert能量谱与变量预测模型（VPMCD）相结合的泄漏检测方法。该方法首先将压力信号分解成若干个固有模态函数（IMF）之和，然后将IMF分量进行Hilbert变换得到局部Hilbert能量谱，依据能量分布的标准差选择最能准确反映矿浆管道运行工况的局部能量谱作为特征值向量，最后通过VPMCD分类器建立泄漏识别模型。将该方法应用于泄漏检测中，实验结果表明，矿浆管道在正常运行、泄漏和工况调整状态下，识别率达到95%，并综合分析流量信号，提高了泄漏检测精度。(According to the interference to leak detection of mineral slurry pipeline caused by work condition adjustment,effectively extracting the characteristics of leak signal is the key to reduce the leakage of the false negatives and false positives.In this paper,a leak detection method based on EMD and VPMCD is proposed. In this method,the pressure signals are decomposed into several IMF components, and then take local Hilbert energy spectrum which most accurately reflect the pipeline operation conditions as feature values, Finally the leak identification model is established by VPMCD classifier.When the method is applied to the leak detection,the experimental results show that under the conditions of normal operation,leakage and work condition adjustment, the recognition rate of the mineral slurry pipeline reaches 95%,and by comprehensively analyzing the flow signals, it also improves the accuracy of leak detection.)
- 2020-12-03 10:09:25下载
- 积分：1
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再matlab下面实现信号的fft变换。
是fft函数。
再matlab下面实现信号的fft变换。
是fft函数。-fft
- 2022-02-21 23:20:06下载
- 积分：1
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qujainfugai
算法设计课本的第四章区间覆盖问题作业题的实现(Operation problem of interval coverage problem in fourth chapters of algorithm design)
- 2017-12-15 17:57:08下载
- 积分：1
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软件编的工具，超级好用
软件编的工具，超级好用
软件编的工具，超级好用...
软件编的工具，超级好用
软件编的工具，超级好用
软件编的工具，超级好用-Provision of software tools, super-easy to use software tool made, super easy to use software tool made, super easy to use
- 2022-02-01 11:00:05下载
- 积分：1
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V10源码+成品
V10源码以及成品，可自己编译！免杀源码可以自己编译(V10 source code and finished products, you can compile your own!)
- 2021-04-07 13:59:04下载
- 积分：1
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2
说明： 51单片机中使第一个灯闪烁的c程序在压缩包中包含c程序和keil工程等等，需要的可自行打开观看(The C program which makes the first lamp flicker in the 51 single chip computer includes C program and keil project in the compression package, etc. It can be opened and watched by itself if needed.)
- 2020-06-21 05:40:02下载
- 积分：1
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Tetris original code c Tetris source. .
俄罗斯方块原码c++ 俄罗斯方块原代码-Tetris original code c Tetris source. .
- 2022-07-14 10:18:25下载
- 积分：1
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Revised_Comp_TT_JAN_2018_UPDATED_01_02_2018(2)
Hybrid cloud is composition of two or more cloud (private ,pubic etc.)
4] Community model:
Managed by more than one organization together.
- 2018-02-14 19:28:42下载
- 积分：1
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这是PB的常用函数，对初学者有一定的帮助
这是PB的常用函数，对初学者有一定的帮助-This is a common function, for beginners is certainly helpful
- 2023-06-08 23:05:03下载
- 积分：1
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USB无线串口资料
了解NRF24L01基本通信原理，NRF24L01——工作原理的解读(help you understand NRF24L01)
- 2020-06-29 06:40:01下载
- 积分：1
