CN105736955B - Buried Pipeline Network Systems and monitoring method based on electronic imaging technology monitoring - Google Patents

Buried Pipeline Network Systems and monitoring method based on electronic imaging technology monitoring Download PDF

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CN105736955B
CN105736955B CN201610270806.1A CN201610270806A CN105736955B CN 105736955 B CN105736955 B CN 105736955B CN 201610270806 A CN201610270806 A CN 201610270806A CN 105736955 B CN105736955 B CN 105736955B
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monitoring
mrow
network systems
underground
electronic imaging
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CN105736955A (en
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谢爱国
谢卫国
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谢爱国
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00Protection or supervision of installations
    • F17D5/02Preventing, monitoring, or locating loss
    • F17D5/06Preventing, monitoring, or locating loss using electric or acoustic means
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10Complex mathematical operations
    • G06F17/11Complex mathematical operations for solving equations, e.g. nonlinear equations, general mathematical optimization problems

Abstract

The present invention relates to the Buried Pipeline Network Systems monitored based on electronic imaging technology, Buried Pipeline Network Systems include:Underground piping is set to produce two current electrodes of electric current, underground pipe network leak detection and survey stifled data acquisition module, the central processing unit being arranged in control room and the Transmission system communicated with data acquisition module and central processing unit;Current electrode is powered to underground, and electric current feeds underground from positive pole and returns negative pole, and an electric field is formed in underground monitored area;Data acquisition module gathers the physical quantity of monitored area node by sensor unit, and central processing unit is provided with the computing module that can obtain that conductance is distributed in monitored area, and the conductance numerical value for obtaining egress according to computing judges whether pipe leakage.The system and method will hunt leak and survey bridging and close, and have the function of the information content for increasing measurement and lifting analysis software, in detection and prediction, can realize efficiently leak detection and survey stifled.

Description

Buried Pipeline Network Systems and monitoring method based on electronic imaging technology monitoring
Technical field
The invention belongs to underground pipe network to monitor field, specifically a kind of buried pipe based on electronic imaging technology monitoring Net system and monitoring method.
Background technology
With Chinese industrial and the development of science and technology modernization, the level of urbanization improves year by year, 2010, Chinese urbanization Rate has reached 46.6%, it is contemplated that the year two thousand twenty will be between 55% to 60%.Now, the underground pipe network carrying in cities and towns, pressure-bearing are born Lotus sharply increases, and all kinds of accidents enter the high-incidence season, caused by economic loss it is huge, therefore, old network renovation and new net build docking It is extremely urgent.
Currently, the classification of the detection technique of underground pipe network, direct Detection Method and indirect detection method can be divided into.Wherein, directly Detection method is that the material that pipe leakage goes out is detected, and is mainly had:Leak detection cables systems approach, conduction high polymer leak detecting, show Track agent detection method and optical fiber leak detection method etc..Indirect detection method is that phenomenon caused by leakage is detected, and is mainly had:Pressure Reeb leak detecting, hydraulic slope collimation method, mass balance approach, statistic decision method, harmony KLR signal approach etc..Due to underground pipe network Complexity, the single method of any of the above are all difficult to meet actual job requirement, particularly with the difficulty of prediction and early warning more Greatly.
The content of the invention
The technical problem to be solved in the present invention is to provide it is a kind of based on electronic imaging technology monitoring Buried Pipeline Network Systems and Its monitoring method, the system and method will hunt leak and survey bridging and close, with the information content and lifting analysis software for increasing measurement Function, in detection and prediction, efficiently leak detection can be realized and surveyed stifled.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is:
A kind of Buried Pipeline Network Systems based on electronic imaging technology monitoring, underground piping is set to produce two power supply electricity of electric current Pole, underground pipe network leak detection and survey stifled data acquisition module, the central processing unit being arranged in control room and with the data The Transmission system that acquisition module and central processing unit communicate;
The current electrode is powered to underground, and electric current feeds underground from positive pole and returns negative pole, in underground monitored area shape Into an electric field;The data acquisition module gathers the physical quantity of monitored area node, the centre by sensor unit Reason device is provided with the computing module that can obtain that conductance is distributed in monitored area, and the conductance numerical value for obtaining egress according to computing judges With the presence or absence of pipe leakage, the working strategy in the computing module includes:
Wherein boundary condition:There is V=V for small boundary areas0
In formula:V-be pipeline in detection zone energy of position function;
R-1- be pipeline in detection zone conductance;
- Hamilton operator;
V0The energy of position function of-boundary point;
J0The conduction current density of-boundary point;
N-for the carrier number in unit volume;
F-it is extra electric field.
The measurement pipeline object of the present invention is metallic conduit, and because the electric conductivity of metallic conduit is good, it has to electric current " inhales Draw " act on, make the abnormal distribution of current density.When pipeline leaks, the voltage that the sensor on pipeline receives can occur Change, leakage point can be positioned according to the change of this characteristic signal.It can judge whether to send out according to the change numerical value of change voltage simultaneously It is raw to block.
Wherein, the sensor unit includes the sensor that can be measured to electric current, the voltage of monitoring node.
In further preferred scheme, the sensor unit is on pipeline border and/or in duct wall.
It can also be realized in further improvement project of the invention, the computing module also includes the computing side of electrical conductivity Journey, the central processing unit are additionally operable to calculate electric conductivity value according to Ohm's law by the variable-current magnitude of voltage of monitoring;By with The related electrode constant of pipeline configuration determines electrical conductivity, according to medium standards Conductivity Ratio pair, is inferred to respective substance..
In one preferred scheme of Transmission system of the present invention, the Transmission system includes the wireless transmission located at pipeline outer wall Device, Area Node device and detection signal interchanger, the detection signal interchanger receive unlimited hair by Area Node device The signal of emitter, and realize the data transfer with the central processing unit.
To make the voltage data of monitoring more intuitively show, software interface, the software are provided with the central processing unit Interface is used for the conductance data for showing the node Jing Guo computing module computing, and compares reaction by the color of fluid cross-section figure The high-low pressure situation of pipeline.
Another aspect of the present invention additionally provides a kind of monitoring side of the Buried Pipeline Network Systems based on electronic imaging technology monitoring Method, carry out according to the following steps:
Step 1: multiple spot sets the sensor unit for including electric current, voltage parameter in the monitored area of underground piping, on ground Face arrangement current electrode makes underground form an electric field;
Step 2: central processing unit obtains each sensor unit of data acquisition module acquisition node by Transmission system Physical quantity;
Step 3: central processing unit obtains the conductance data of monitoring node by the computing of conductance computing module, and according to electricity The change of derivative evidence judges whether pipeline is revealed;
Step 4: central processing unit is reflected by comparing the color of conductance data figure in software interface;
Step 5: memory module Coutinuous store real-time online data and graph data.
The calculating process of computing module includes following equation computings in wherein described step 3:
Wherein boundary condition:There is V=V for small boundary areas0
Further, the color comparison of figure is specially in the step 3 software interface:Figure cuts for the fluid of pipeline Surface construction, and corresponding site shows high voltage region and low-voltage area with different colours in fluid cross-section figure, while it is provided with face High voltage region and low-voltage area are adjusted respectively for color adjusting key.
Further, the detection method is also included Step 3: the central processing unit is always according to electrical conductivity computing side Journey calculates the electrical conductivity concrete numerical value of monitoring node, so as to be inferred to respective substance.
The invention has the advantages that:
1. the present invention is to be based on electronic imaging technology, a large amount of electrical signal datas of real-time online are can obtain, suitable for multiphase Fluid (can be used for turbidity fluid), solve the problem of optical means.The electric signal that the present invention obtains is changed by our software Into data signal, available for long-distance transmissions.
2. the present invention need not add any foreign substance, reduce running cost and difficulty.The present invention has very high Reliability, it is adapted to long-term real time on-line monitoring.
3. the present invention can will hunt leak and survey bridging by hardware and software and close, prediction and pre-alerting ability are improved, this is tradition Method is irrealizable.
4. the present invention applies efficient signal analysis software, obtained output result has visuality directly perceived, is advantageous to correlation and determines Plan and corresponding arrangement and method for construction.
5. sensor of the invention has flexibility, available for border formula and built-in, size dimension also can be according to reality Situation adjusts.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of Buried Pipeline Network Systems of the present invention;
Fig. 2 is the structural representation of another embodiment of Buried Pipeline Network Systems of the present invention;
Fig. 3 is a kind of schematic diagram of embodiment of the figure of software interface in Buried Pipeline Network Systems of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein identical or class As label indicate same or similar element.Embodiment below with reference to accompanying drawing description is exemplary, is only used for solving The present invention is released, and is not construed as limiting the claims.
Monitoring Buried Pipeline Network Systems of the invention based on electronic imaging technology increase measurement for existing methods deficiency The function of information content and lifting analysis software, in detection and prediction, efficiently leak detection can be realized and surveyed stifled.
Fig. 1 shows a kind of embodiment of Buried Pipeline Network Systems based on electronic imaging technology monitoring of the present invention, institute Stating Buried Pipeline Network Systems includes:Underground piping is set to produce two current electrodes of electric current, underground pipe network leak detection and survey stifled data Acquisition module 1, the central processing unit 2 being arranged in control room and communicated with the data acquisition module 1 and central processing unit 2 The Transmission system 3 of letter.
The current electrode is powered to underground, and electric current feeds underground from positive pole and returns negative pole, in underground monitored area shape Into an electric field;The data acquisition module 1 gathers the physical quantity of monitored area node, the center by sensor unit 10 Processor 2 is provided with the computing module that can obtain that conductance is distributed in monitored area, for obtaining the conductance numerical value of egress according to computing Judge whether pipe leakage, the working strategy in the described computing module includes:
Wherein boundary condition:There is V=V for small boundary areas0
In formula:V-be pipeline in detection zone energy of position function;
R-1- be pipeline in detection zone conductance;
- Hamilton operator;
V0The energy of position function of-boundary point;
J0The conduction current density of-boundary point;
N-for the carrier number in unit volume;
F-it is extra electric field.
The sensor unit 10 includes the sensor that can be measured to electric current, the electric current of monitored area node.
Sensor of the invention unit 10 can be made into two schemes:Border formula and built-in.Can be according to underground pipe network Actual conditions select single or integration scenario, by the sensor unit on the pipeline border and/or in duct wall.
It can also be realized in further improvement project of the invention, the computing module also includes the computing side of electrical conductivity Journey, the central processing unit are additionally operable to calculate the electrical conductivity concrete numerical value of monitoring node according to electrical conductivity operational equation, so as to It is inferred to respective substance.Specifically, electric conductivity value is calculated according to Ohm's law by the variable-current magnitude of voltage of monitoring;By with pipe Structure related electrode constant in road determines electrical conductivity.Compared according to dielectric conductance rate, be inferred to respective substance, it is by that analogy, right The calculating of multiple node conductances and conductivity values, associate out tie substance distribution.
Fig. 2 shows another embodiment of Buried Pipeline Network Systems of the present invention, except with above-mentioned technical scheme identical Outside scheme, the Transmission system 3 includes exchanging located at the wireless launcher, Area Node device 31 and detection signal of pipeline outer wall Machine 32, the detection signal interchanger 32 by Area Node device 31 receive wireless transmitter signal, and realize with it is described The data transfer of central processing unit 2.
Software interface is provided with the central processing unit 2 of the present invention, the software interface is used to show to be transported by computing module The voltage data of the destination node of calculation, and pass through the high-low pressure situation of graphic color comparison reacting pipe.In one embodiment, Include software interface for the electronic imaging content of fluid cross-section, fluid cross-section figure, one group of voltage are included in software interface Datagram and color adaptation key, fluid cross-section figure is as shown in figure 3, be distributed with high voltage region a and low-voltage area b in figure 4 Height, voltage zone a and low-voltage area b contrast is carried out by different colours.One kind of the present invention is monitored based on electronic imaging technology Buried Pipeline Network Systems monitoring method, carry out according to the following steps:
Step 1: multiple spot sets the sensor unit (10) for including electric current, voltage parameter in the monitored area of underground piping, On ground, arrangement current electrode makes underground form an electric field;
Step 2: central processing unit 2 obtains each sensor list of the acquisition node of data acquisition module 1 by Transmission system 3 The physical quantity of member 10;
Step 3: central processing unit 2 obtains the conductance data of monitoring node by the computing of conductance computing module, and according to electricity The change of derivative evidence judges whether pipeline is revealed;
Step 4: central processing unit 2 is reflected by comparing the color of conductance data figure in software interface;
Step 5: memory module Coutinuous store real-time online data and graph data.
Wherein, the calculating process of computing module includes following equation computings in the step 3:
Wherein boundary condition:There is V=V for small boundary areas0
Symbol is shown in the embodiment of above-mentioned Buried Pipeline Network Systems in formula.
The color of figure, which compares, in the step 3 software interface is specially:Figure constructs for the fluid cross-section of pipeline, and Corresponding site shows high voltage region and low-voltage area with different colours in fluid cross-section figure, while provided with color adaptation key point It is other that high voltage region and low-voltage area are adjusted;This intuitively view can help expert and engineering staff to improve prediction and pre- Alert ability.
The detection method also includes central processing unit 2 described in step and calculates monitoring section always according to electrical conductivity operational equation The electrical conductivity concrete numerical value of point, so as to be inferred to respective substance.

Claims (10)

1. a kind of Buried Pipeline Network Systems based on electronic imaging technology monitoring, it is characterised in that the Buried Pipeline Network Systems include: Underground piping is set to produce two current electrodes of electric current, underground pipe network leak detection and survey stifled data acquisition module (1), be arranged at control Make indoor central processing unit (2) and the Transmission system communicated with the data acquisition module (1) and central processing unit (2) (3);
The current electrode is powered to underground, and electric current feeds underground from positive pole and returns negative pole, and one is formed in underground monitored area Individual electric field;The data acquisition module (1) gathers the physical quantity of monitored area node, the center by sensor unit (10) Processor (2) is provided with the computing module that can obtain that conductance is distributed in monitored area, for obtaining the conductance number of egress according to computing Value judges whether pipe leakage, and the working strategy in the computing module includes:
<mrow> <mo>&amp;dtri;</mo> <mo>&amp;CenterDot;</mo> <msup> <mi>R</mi> <mrow> <mo>-</mo> <mn>1</mn> </mrow> </msup> <mo>&amp;dtri;</mo> <mi>V</mi> <mo>=</mo> <mi>f</mi> </mrow>
Wherein boundary condition:There is V=V for small boundary areas0
<mrow> <msup> <mi>R</mi> <mrow> <mo>-</mo> <mn>1</mn> </mrow> </msup> <mo>&amp;part;</mo> <mi>V</mi> <mo>/</mo> <mo>&amp;part;</mo> <mi>n</mi> <mo>=</mo> <msub> <mi>J</mi> <mn>0</mn> </msub> </mrow>
In formula:V-be pipeline in detection zone energy of position function;
R-1- be pipeline in detection zone conductance;
- Hamilton operator;
V0The energy of position function of-boundary point;
J0The conduction current density of-boundary point;
N-for the carrier number in unit volume;
F-it is extra electric field.
2. the Buried Pipeline Network Systems as claimed in claim 1 based on electronic imaging technology monitoring, it is characterised in that the sensing Device unit (10) includes the sensor that can be measured to electric current, the voltage of node.
3. the Buried Pipeline Network Systems as claimed in claim 2 based on electronic imaging technology monitoring, it is characterised in that the sensing Device unit (10) is on pipeline border and/or in duct wall.
4. the Buried Pipeline Network Systems as claimed in claim 1 based on electronic imaging technology monitoring, it is characterised in that the computing Module is additionally operable to calculate electrical conductivity, and the central processing unit (2) is additionally operable to the variable-current magnitude of voltage by monitoring according to ohm Law calculates electric conductivity value;Electrical conductivity is determined by the electrode constant related to pipeline configuration, according to medium standards Conductivity Ratio pair, It is inferred to respective substance.
5. the Buried Pipeline Network Systems as claimed in claim 1 based on electronic imaging technology monitoring, it is characterised in that the transmission System (3) includes wireless launcher, Area Node device (31) and the detection signal interchanger (32) located at pipeline outer wall, described Detection signal interchanger (32) receives the signal of wireless transmitter by Area Node device (31), and realizes and the centre Manage the data transfer of device (2).
6. the Buried Pipeline Network Systems as claimed in claim 1 based on electronic imaging technology monitoring, it is characterised in that the center Software interface is provided with processor (2), the software interface is used for the conductance data for showing the node Jing Guo computing module computing, And the high-low pressure situation for the color comparison reacting pipe for passing through fluid cross-section figure.
7. a kind of monitoring method of the Buried Pipeline Network Systems based on electronic imaging technology monitoring, is carried out according to the following steps:
Step 1: multiple spot sets the sensor unit (10) for including electric current, voltage parameter in the monitored area of underground piping, on ground Face arrangement current electrode makes underground form an electric field;
Step 2: central processing unit (2) obtains each sensor of data acquisition module (1) acquisition node by Transmission system (3) The physical quantity of unit (10);
Step 3: central processing unit (2) obtains the conductance data of monitoring node by the computing of conductance computing module, and according to conductance The change of data judges whether pipeline is revealed;
Step 4: central processing unit (2) is reflected by comparing the color of conductance data figure in software interface;
Step 5: memory module Coutinuous store real-time online data and graph data.
8. the monitoring method of the Buried Pipeline Network Systems as claimed in claim 7 based on electronic imaging technology monitoring, its feature exist In the calculating process of computing module includes following equation computings in the step 3:
<mrow> <mo>&amp;dtri;</mo> <mo>&amp;CenterDot;</mo> <msup> <mi>R</mi> <mrow> <mo>-</mo> <mn>1</mn> </mrow> </msup> <mo>&amp;dtri;</mo> <mi>V</mi> <mo>=</mo> <mi>f</mi> </mrow>
Wherein boundary condition:There is V=V for small boundary areas0
<mrow> <msup> <mi>R</mi> <mrow> <mo>-</mo> <mn>1</mn> </mrow> </msup> <mo>&amp;part;</mo> <mi>V</mi> <mo>/</mo> <mo>&amp;part;</mo> <mi>n</mi> <mo>=</mo> <msub> <mi>J</mi> <mn>0</mn> </msub> </mrow>
In formula:V-be pipeline in detection zone energy of position function;
R-1- be pipeline in detection zone conductance;
- Hamilton operator;
V0The energy of position function of-boundary point;
J0The conduction current density of-boundary point;
N-for the carrier number in unit volume;
F-it is extra electric field.
9. the monitoring method of the Buried Pipeline Network Systems as claimed in claim 7 based on electronic imaging technology monitoring, its feature exist In the color of figure, which compares, in the step 4 software interface is specially:Figure constructs for the fluid cross-section of pipeline, and in fluid Corresponding site shows high voltage region and low-voltage area with different colours in sectional view, while provided with color adaptation key respectively to height Voltage zone and low-voltage area are adjusted.
10. the monitoring method of the Buried Pipeline Network Systems as claimed in claim 7 based on electronic imaging technology monitoring, its feature exist In the monitoring method also includes Step 3: the central processing unit (2) calculates monitoring section always according to electrical conductivity operational equation The electrical conductivity concrete numerical value of point, so as to be inferred to respective substance.
CN201610270806.1A 2016-04-27 2016-04-27 Buried Pipeline Network Systems and monitoring method based on electronic imaging technology monitoring Active CN105736955B (en)

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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3045257A1 (en) * 1980-12-01 1982-06-03 Friedhelm Schmitz CONTROL SYSTEM FOR LEAK DETECTING PIPELINES
CN1936414A (en) * 2006-08-12 2007-03-28 陈宜中 Non-conductive material water-supply pipeline leak-detection method
CN101344217B (en) * 2008-08-28 2012-02-29 中国石油大学(北京) Apparatus and method for measuring earth induction current and pipe-to-soil potential of buried pipe
CN201892608U (en) * 2009-12-11 2011-07-06 天华化工机械及自动化研究设计院 Acid leakage monitoring device in acid producing industry
CN102155628A (en) * 2010-12-01 2011-08-17 广西大学 Underground drainage pipeline leakage detection method and device
CN104197205B (en) * 2014-09-17 2016-05-25 太原理工大学 A kind of pipe network blockage detector
CN104266087B (en) * 2014-10-08 2017-02-15 西安科技大学 In-ground type tap water pipeline leak detection device and detection method
CN105114821B (en) * 2015-10-19 2017-10-03 叶雷 Embedded metal pipeline leakage detection method

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