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Pipeline leakage weighted positioning method and device based on pressure waves and sound waves

A technology of pipeline leakage and positioning method, which is applied in the field of pipeline leakage positioning, and can solve the problems of positioning failure and large positioning error rate

Inactive Publication Date: 2016-08-10
BEIJING HONGXIN HUANKE TECH DEV CO LTD
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Problems solved by technology

[0007] The purpose of the present invention is to provide a pipeline leak weighted location method and device based on pressure waves and acoustic waves, to solve the problems of high location error rate and location failure in the prior art

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  • Pipeline leakage weighted positioning method and device based on pressure waves and sound waves
  • Pipeline leakage weighted positioning method and device based on pressure waves and sound waves
  • Pipeline leakage weighted positioning method and device based on pressure waves and sound waves

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.

[0026] It should be noted that, based on the physical process of the attenuation and deformation of the pressure signal during transmission, the present invention analyzes the distribution characteristics of the results of different positioning methods, and according to the characteristics of the approximate exponential distribution of signal strength, further illustrates the use of exponential weighting to obtain high-precision results of leak location.

[0027] In the initial stage of pipeline pressure wave generation, including the negative press...

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Abstract

The invention provides a pipeline leakage weighted positioning method and device based on pressure waves and sound waves. The method comprises the following steps: obtaining a signal transmission time difference obtained through multiple instruments and multiple methods; and carrying out exponential weighting processing on the signal transmission signal difference by adopting an iterative method to obtain positioning results. The device comprises an obtaining module and a calculating module. According to the pipeline leakage weighted positioning method and device, comprehensive positioning precision for multiple signal sources can be remarkably improved by an exponential weighting algorithm established based on physical characteristics of a signal, and the pipeline leakage weighted positioning method is superior to a weighted positioning method based on probability statistics in requirements on sample number, positioning inaccuracy, calculated amount and the like.

Description

technical field [0001] The invention relates to the technical field of pipeline leakage location, in particular to a method and device for weighted location of pipeline leakage based on pressure waves and sound waves. Background technique [0002] Pipeline transportation is an important part of modern transportation system. In national production and life, pipeline transportation is the main form of transportation of water, oil, gas and chemical raw materials. The occurrence of pipeline leakage accidents will cause huge economic losses to the unit and the country, and cause serious pollution to the environment. Therefore, the research and development of the oil pipeline leakage monitoring system has always been highly valued. Different manufacturers at home and abroad have developed a variety of pipeline leakage monitoring and alarm systems, as mentioned in Chinese patents CN202074237U, CN100552668C, and CN1184931. The current mainstream online leakage monitoring system is b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D5/02F17D5/06
CPCF17D5/02F17D5/06
Inventor 徐胜金龚海清胡站伟
Owner BEIJING HONGXIN HUANKE TECH DEV CO LTD
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