| 基于综合方法应用的管道泄漏检测研究 |
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| 引用本文： | 李炜,朱芸,毛海杰. 基于综合方法应用的管道泄漏检测研究[J]. 化工自动化及仪表, 2005, 32(2): 51-53 |
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| 作者姓名： | 李炜 朱芸 毛海杰 |
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| 作者单位： | 兰州理工大学,电气与信息工程学院,甘肃,兰州,730050 |
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| 基金项目： | 甘肃省自然科学基金资助项目(ZR 96 030) |
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| 摘 要： | 分析管道泄漏检测中经常出现的两个问题,对其中一个由于两个站点之间的干扰信号产生时间差,会引起误报警的情况,提出用序贯概率比检验法(SPRT)解决,并用检测延迟的补偿法来弥补SPRT检验法检测延迟的缺点,从而提高系统的检测速度,再用小波变换法进行泄漏定位。两种方法的结合不但可以有效地去除干扰噪声,而且缩短了泄漏检测的响应时间,提高了泄漏定位的精度。实验表明该方法克服了序贯概率比的缺点,具有良好的应用前景。
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| 关 键 词： | 管道 泄漏 序贯概率比 小波变换 检测延迟 |
| 文章编号： | 1000-3932(2005)(02)-0051-03 |
| 修稿时间： | 2005-03-04 |
Studying of Oil Pipeline Leaks Detection and Location Based on Synthesized Method |
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| LI Wei,ZHU Yun,MAO Hai-jie. Studying of Oil Pipeline Leaks Detection and Location Based on Synthesized Method[J]. Control and Instruments In Chemical Industry, 2005, 32(2): 51-53 |
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| Authors: | LI Wei ZHU Yun MAO Hai-jie |
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| Abstract: | Two questions which often appear in the pipeline leaks detection are analyzed.Making use of SPRT to resolve the second question is put forward,which is that disturbance yawp between two locations will bring on time-delay,then bring on wrong alarm.The velocity of leaks detection is enhanced by compensating method of detecting delay.Then the wavelet transform is used to locate leaks.The method not only disposes the disturbance yawp,but also shortens the response time of leaks detection,and heightens the precision of leaks location.The experiment result shows that the method can overcome the shortcomings of SPRT,and it have wider application future. |
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| Keywords: | pipeline leaks sequential probability ratio wavelet transform detect delay |
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