CN106202932A - A kind of method evaluating stray electrical current interference curve and interference source curve similarity - Google Patents
A kind of method evaluating stray electrical current interference curve and interference source curve similarity Download PDFInfo
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- CN106202932A CN106202932A CN201610546297.0A CN201610546297A CN106202932A CN 106202932 A CN106202932 A CN 106202932A CN 201610546297 A CN201610546297 A CN 201610546297A CN 106202932 A CN106202932 A CN 106202932A
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- electrical current
- stray electrical
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- curve
- interference source
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Z—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS, NOT OTHERWISE PROVIDED FOR
- G16Z99/00—Subject matter not provided for in other main groups of this subclass
Abstract
The invention discloses a kind of method evaluating stray electrical current interference curve and interference source curve similarity, belong to stray electrical current diagnostic field.The present invention can be that the stray electrical current of buried pipeline and buried metal (such as grounding device etc.) surveys the determination of interference source after detection, a kind of new approaches new method is provided, can effectively determine stray electrical current interference source and certain interference source percentage contribution to stray electrical current, improvement for stray electrical current provides foundation, and the safe operation for long distance pipeline He some buried device provides support.
Description
Technical field
The invention belongs to stray electrical current diagnostic field, be specifically related to a kind of evaluation stray electrical current interference curve and interference source is bent
The method of line similarity.
Background technology
At present, stray electrical current detect during, use stray electrical current surveying instrument record stray electrical current interference curve and
When interference source curve determines interference source, traditional method is the similarity degree removing to judge the two curve by experience in quality,
Accuracy is the highest, and cannot judge the interference source percentage contribution to stray electrical current.Stray electrical current interference source can not accurately determine,
Drainage poor effect can be caused.Lack a kind of reliable evaluation stray electrical current interference curve and the side of interference source curve similarity at present
Method.
Summary of the invention
For above-mentioned technical problem present in prior art, the present invention proposes and a kind of evaluates stray electrical current interference curve
With the method for interference source curve similarity, reasonable in design, overcome the deficiencies in the prior art, there is good promotional value.
To achieve these goals, the present invention adopts the following technical scheme that
A kind of method evaluating stray electrical current interference curve and interference source curve similarity, uses stray electrical current surveying instrument,
Carry out in accordance with the following steps:
Step 1: by stray electrical current surveying instrument, stray electrical current interference and interference source are carried out the continuous monitoring of a period of time
After, respectively obtain scatterplot sequence and the scatterplot sequence of interference source of stray electrical current interference；
Step 2: utilize non-linear regression method, nonlinear regression linear change respectively to stray electrical current interference scatterplot sequence
The scatterplot sequence of row and interference source is fitted, and obtains stray electrical current function F1(t) and interference source function F2(t) two curves；
Step 3: analytic function F1(t) and F2The dependency of (t)；
Step 4: by function F1(t) and F2T the dependency of (), draws stray electrical current interference curve and interference source curve
Dependency.
Preferably, in step 3, specifically include
Step 3.1: definition F1(t) and F2T the cross-correlation function of () is
Step 3.2: according to F in step 3.11(t) and F2T the cross-correlation function of (), obtains cross-correlation coefficient
And
Wherein, It is respectively F1(t) and F2The mean square deviation of (t)；
Step 3.3: pass through cross-correlation coefficientDraw function F1(t) and F2The dependency of (t)；
WhenTime, characterize F1(t) and F2T () microfacies is closed；
Characterize F1(t) and F2T () reality closes；
WhenTime, characterize F1(t) and F2(t) significant correlation；
WhenCharacterize F1(t) and F2(t) height correlation.
The Advantageous Effects that the present invention is brought:
The present invention proposes a kind of method evaluating stray electrical current interference curve and interference source curve similarity, with existing skill
Art is compared, and the present invention can be that the stray electrical current of buried pipeline and buried metal (such as grounding device etc.) surveys interference source after detection
Determination, it is provided that a kind of new approaches new method, can effectively determine that stray electrical current interference source and certain interference source are to stray electrical current
Percentage contribution, for stray electrical current improvement provide foundation, the safe operation for long distance pipeline He some buried device provides
Support.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of method evaluating stray electrical current interference curve and interference source curve similarity of the present invention.
Detailed description of the invention
Use stray electrical current surveying instrument that the stray electrical current of a certain pipeline is disturbed and a certain interference source carries out the company of 24 hours
After continuous monitoring, it is thus achieved that stray electrical current one scatterplot sequence of interference and one scatterplot sequence of interference source.By non-linear regression method, non-thread
Property the linear change matching that returns obtain that stray electrical current function F1 (t) and interference source function F2 (t) two be irregular but continuous print
Curve.Analytic function F1 (t) and the dependency of F2 (t).According to cross-correlation coefficientMay determine that function F1 (t) and F2
T (), in any two moment t1, the degree of correlation of t2, learns through checking, whenTime, characterize two functions micro-
Relevant；Characterize two function realities to close；WhenTime, characterize two functions and show
Write relevant；WhenCharacterize two function height correlations.Cross correlation algorithm is used to determine cross correlation coefficient,
Judge stray electrical current curve and the similarity of interference source curve with this, evaluate what stray electrical current was disturbed by a certain interference source simultaneously
Percentage contribution size.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, and this technology is led
Change that the technical staff in territory is made in the essential scope of the present invention, retrofit, add or replace, also should belong to the present invention's
Protection domain.
Claims (2)
1. evaluate stray electrical current interference curve and a method for interference source curve similarity, use stray electrical current surveying instrument, its
It is characterised by: carry out in accordance with the following steps:
Step 1: by stray electrical current surveying instrument stray electrical current disturbed and after interference source carries out the continuously monitoring of a period of time, point
Do not obtain scatterplot sequence and the scatterplot sequence of interference source of stray electrical current interference；
Step 2: utilize non-linear regression method, nonlinear regression linear change respectively to stray electrical current interference scatterplot sequence and
The scatterplot sequence of interference source is fitted, and obtains stray electrical current function F1(t) and interference source function F2(t) two curves；
Step 3: analytic function F1(t) and F2The dependency of (t)；
Step 4: by function F1(t) and F2T the dependency of (), draws the relevant of stray electrical current interference curve and interference source curve
Property.
Evaluation stray electrical current interference curve the most according to claim 1 and the method for interference source curve similarity, its feature
It is: in step 3, specifically includes
Step 3.1: definition F1(t) and F2T the cross-correlation function of () is
Step 3.2: according to F in step 3.11(t) and F2T the cross-correlation function of (), obtains cross-correlation coefficient
And
Wherein, It is respectively F1(t) and F2The mean square deviation of (t)；
Step 3.3: pass through cross-correlation coefficientDraw function F1(t) and F2The dependency of (t)；
WhenTime, characterize F1(t) and F2T () microfacies is closed；
Characterize F1(t) and F2T () reality closes；
WhenTime, characterize F1(t) and F2(t) significant correlation；
WhenCharacterize F1(t) and F2(t) height correlation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610546297.0A CN106202932A (en) | 2016-07-12 | 2016-07-12 | A kind of method evaluating stray electrical current interference curve and interference source curve similarity |
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| CN201610546297.0A CN106202932A (en) | 2016-07-12 | 2016-07-12 | A kind of method evaluating stray electrical current interference curve and interference source curve similarity |
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| CN106202932A true CN106202932A (en) | 2016-12-07 |
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| CN201610546297.0A Pending CN106202932A (en) | 2016-07-12 | 2016-07-12 | A kind of method evaluating stray electrical current interference curve and interference source curve similarity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108171118A (en) * | 2017-12-05 | 2018-06-15 | 东软集团股份有限公司 | Signal of blinking data processing method, device, readable storage medium storing program for executing and electronic equipment |
| CN111562423A (en) * | 2020-04-17 | 2020-08-21 | 北京市燃气集团有限责任公司 | Method and device for calculating influence range of subway stray current on buried pipeline |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590459A (en) * | 2012-03-09 | 2012-07-18 | 中国石油天然气股份有限公司 | System and method for detecting and evaluating corrosion of buried pipeline |
| CN103528672A (en) * | 2013-10-28 | 2014-01-22 | 中国医学科学院生物医学工程研究所 | Magneto acoustic signature analysis method based on spectral analysis and time domain correlation method |
| CN104266894A (en) * | 2014-09-05 | 2015-01-07 | 中国矿业大学 | Mine microearthquake signal preliminary wave moment extracting method based on correlation analysis |
| CN104332984A (en) * | 2014-10-28 | 2015-02-04 | 国网宁夏电力公司电力科学研究院 | Online identification method for node voltage interaction factors based on noise-like |
| CN104533400A (en) * | 2014-11-12 | 2015-04-22 | 中国海洋石油总公司 | Method for reconstructing logging curve |
| CN105249925A (en) * | 2015-09-25 | 2016-01-20 | 刘垚 | Traditional Chinese medicine pulse manifestation acquisition apparatus, noise reduction system and noise reduction method |
| CN105653502A (en) * | 2016-03-17 | 2016-06-08 | 湘潭大学 | Analysis method of electromagnetic radiation relevance of communication base station based on genetic algorithm |
-
2016
- 2016-07-12 CN CN201610546297.0A patent/CN106202932A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590459A (en) * | 2012-03-09 | 2012-07-18 | 中国石油天然气股份有限公司 | System and method for detecting and evaluating corrosion of buried pipeline |
| CN103528672A (en) * | 2013-10-28 | 2014-01-22 | 中国医学科学院生物医学工程研究所 | Magneto acoustic signature analysis method based on spectral analysis and time domain correlation method |
| CN104266894A (en) * | 2014-09-05 | 2015-01-07 | 中国矿业大学 | Mine microearthquake signal preliminary wave moment extracting method based on correlation analysis |
| CN104332984A (en) * | 2014-10-28 | 2015-02-04 | 国网宁夏电力公司电力科学研究院 | Online identification method for node voltage interaction factors based on noise-like |
| CN104533400A (en) * | 2014-11-12 | 2015-04-22 | 中国海洋石油总公司 | Method for reconstructing logging curve |
| CN105249925A (en) * | 2015-09-25 | 2016-01-20 | 刘垚 | Traditional Chinese medicine pulse manifestation acquisition apparatus, noise reduction system and noise reduction method |
| CN105653502A (en) * | 2016-03-17 | 2016-06-08 | 湘潭大学 | Analysis method of electromagnetic radiation relevance of communication base station based on genetic algorithm |
Non-Patent Citations (3)
| Title |
|---|
| 刘军,: "埋地管道杂散电流干扰检测与治理", 《化学工程与装备》 * |
| 叶远锡，等；: "输油管道杂散电流干扰的检测及对应措施", 《腐蚀与防护》 * |
| 胡瑞颖,: "镇海站管道交流杂散电流工程检测实例", 《全面腐蚀控制》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108171118A (en) * | 2017-12-05 | 2018-06-15 | 东软集团股份有限公司 | Signal of blinking data processing method, device, readable storage medium storing program for executing and electronic equipment |
| CN111562423A (en) * | 2020-04-17 | 2020-08-21 | 北京市燃气集团有限责任公司 | Method and device for calculating influence range of subway stray current on buried pipeline |
| CN111562423B (en) * | 2020-04-17 | 2022-08-05 | 北京市燃气集团有限责任公司 | Method and device for calculating influence range of subway stray current on buried pipeline |
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Application publication date: 20161207 |