CN107063582A - A kind of aqueduct leakage monitoring sensor - Google Patents
A kind of aqueduct leakage monitoring sensor Download PDFInfo
- Publication number
- CN107063582A CN107063582A CN201611260400.1A CN201611260400A CN107063582A CN 107063582 A CN107063582 A CN 107063582A CN 201611260400 A CN201611260400 A CN 201611260400A CN 107063582 A CN107063582 A CN 107063582A
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- chaotic
- leakage monitoring
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 14
- 230000000739 chaotic effect Effects 0.000 claims abstract description 18
- 230000001133 acceleration Effects 0.000 claims abstract description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000013307 optical fiber Substances 0.000 claims abstract description 4
- 238000005070 sampling Methods 0.000 claims abstract description 4
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000003534 oscillatory effect Effects 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 2
- 238000001514 detection method Methods 0.000 abstract description 12
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract description 3
- 238000001228 spectrum Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
- G01M3/243—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations for pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention provides a kind of aqueduct leakage monitoring sensor, including fixed pedestal, the fixed pedestal connects vibration acceleration sensor by elastic conductive part, signal is connected chaotic signal by coaxial cable after signal sampling amplifies and detects circuit by vibration acceleration sensor, by optical fiber output interface by signal output.The signal input chaotic signal of reception is detected circuit by the present invention, thus the spectrum signature of input acoustic signals can quickly be calculated, pipe leakage intensity is analyzed in real time, the relatively conventional analysis method of the sensor, measurement sensitivity, the antijamming capability to ambient noise, detection accuracy etc. have preferable feature, received signal to noise ratio is low, the features such as fast response time.
Description
Technical field
The invention belongs to photoelectric sense technology field, more particularly, to a kind of aqueduct leakage monitoring sensor.
Background technology
Chaotic measurement method has high measurement sensitivity and extremely strong " immune " is respectively provided with to any zero mean noise
Power is the characteristics of it is most prominent, and it is micro- under any zero mean noise background that this feature determines that chaotic measurement method can apply to
The parameter Estimation of weak signal, a key property of chaos system is to primary condition (initial phase) and parameter (phase, frequency
Rate, amplitude) exquisite sensitivity.
Aqueduct is in normal course of operation, because pump, motor and other power system operations are relatively steady, energy phase
To concentrating, most of energy spectrum is all concentrated on low frequency component, and the vibration externally exported and sound wave are all in below 2000Hz's
Low frequency component.This part component is by collection and is amplified into signal-processing board (built-in chaos system), and chaos system is to defeated
Enter signal frequency very sensitive, for low-frequency input signal, chaos system will not produce phase transformation.If there is booster in aqueduct
Or situations such as piping and seepage, the high fdrequency component externally exported just occurs, chaos receives the signal plate vibration higher to frequency
Signal is produced accordingly, and the track of whole system changes, around this principle, a kind of using chaos voiceprint analysis Technology design
Aqueduct leakage monitoring sensor, the sensor gathers the voiceprint of aqueduct in real time, carries out chaos resolving, once go out
The continuous component of existing high frequency, will send early warning.The sensitivity of sensor is high, and dynamic response is good, is adapted to extensive aqueduct
Leak detection.
The domestic and international pipeline leakage checking system based on signal analysis technology, is generally adopted using Simulation scale-up plus signal at present
Collection and spectrum analysis technique, this method precision is not high, is easily failed by the interference of noise.The spirit of chaotic signal detection method
Sensitivity is high, and frequency selectivity is strong, is adapted to the accurate identification for doing failure
The content of the invention
In view of this, the present invention is directed to propose a kind of aqueduct leakage monitoring sensor, realizes that the leakage to pipeline is made an uproar
Sound accurately calculate and position.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of aqueduct leakage monitoring sensor, including fixed pedestal, the fixed pedestal pass through elastic conductive part
Vibration acceleration sensor is connected, vibration acceleration sensor is connected signal by coaxial cable after signal sampling amplifies
Chaotic signal detects circuit, by optical fiber output interface by signal output.
Further, the chaotic signal detection circuit is by power supply circuit, measured signal input, amplification and product
Parallel circuit, multiplier circuit, feedback amplifier and reference signal input are constituted.
Further, the power supply circuit of the chaotic signal detection circuit provides power supply for whole circuit, is measured
The input signal of signal input part amplifies sinusoidal periodic signal by amplification and integrating circuit, using multiplier circuit to input
The reference signal that signal is inputted with reference signal input is multiplied, and is transmitted back to output signal by feedback amplifier measured
Signal input part, forms chaotic output after Oscillatory Coupling.
Relative to prior art, a kind of aqueduct leakage monitoring sensor of the present invention has the advantage that：This
Thus the signal input chaotic signal detection circuit of reception can quickly be calculated the spectrum signature of input acoustic signals by invention,
Pipe leakage intensity is analyzed in real time, the relatively conventional analysis method of the sensor, measurement sensitivity, to ambient noise
Antijamming capability, detection accuracy etc. have preferable feature, and received signal to noise ratio is low, the features such as fast response time.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of installation connection diagram of aqueduct leakage monitoring sensor described in the embodiment of the present invention；
Fig. 2 is a kind of chaotic signal detection circuit of aqueduct leakage monitoring sensor described in the embodiment of the present invention；
Description of reference numerals：
1- fixed pedestals；2- elastic conductive parts；3- vibration acceleration sensors；4- chaotic signals detect circuit；5- light
Fine output interface；6- low frequency quieter materials；7- power supply circuits；8- measured signal inputs；9- amplifies and integrating circuit；
10- multiplier circuits；11- feedback amplifiers；12- reference signal inputs.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or dark
Specific orientation must be had, with specific azimuth configuration and operation by showing the device or element of meaning, therefore it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, using low frequency quieter material 6, the other parts of sensor vibration acquisition system are wrapped up, it is main
Syllabus is the interference for reducing outside noise signal, and whole sensor component is installed in pipeline outer-layer by fixed pedestal 1, is led to
Cross elastic conductive part 2 to connect vibration acceleration sensor 3, vibration acceleration sensor 3 will after signal sampling amplifies
Signal is connected by coaxial cable, and by signal feeding chaotic signal detection circuit 4, detection circuit diagram is as shown in Figure 2 in detail.Chaos
Signal deteching circuit 4 the accurate frequency to inputted vibration signal can be calculated very much, then will by optical fiber output interface 5
Signal output.
The operation principle of chaotic signal detection circuit 4 is by power supply circuit 7 and measured signal input 8, amplification
Constituted with integrating circuit 9, multiplier circuit 10, feedback amplifier 11 and reference signal input 12.The power supply of circuit
Circuit 7 provides power supply for whole chaos system, and the input signal of measured signal input 8 will by amplification and integrating circuit 9
Sinusoidal periodic signal is amplified, the phase of reference signal 12 inputted using multiplier circuit 10 to input signal with reference signal input
Multiply, output signal is transmitted back to measured signal input 8 by feedback amplifier 11, chaos is formed after Oscillatory Coupling
Output.If input signal and reference signal are same frequency signals, then the state of output end is exactly chaos, if frequency is not
Identical, output signal is exactly non-chaos state, using the state of this structure detection acoustic vibration signal.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (3)
1. a kind of aqueduct leakage monitoring sensor, it is characterised in that：Including fixed pedestal (1), the fixed pedestal (1) is led to
Elastic conductive part (2) connection vibration acceleration sensor (3) is crossed, vibration acceleration sensor (3) amplifies by signal sampling
Signal is connected into chaotic signal by coaxial cable afterwards and detects circuit (4), by optical fiber output interface (5) by signal output.
2. a kind of aqueduct leakage monitoring sensor according to claim 1, it is characterised in that：The chaotic signal inspection
Survey electric (4) route power supply circuit (7), measured signal input (8), amplification and integrating circuit (9), multiplier circuit
(10), feedback amplifier (11) and reference signal input (12) are constituted.
3. a kind of aqueduct leakage monitoring sensor according to claim 2, it is characterised in that：The chaotic signal inspection
The power supply circuit (7) of slowdown monitoring circuit (4) provides power supply, the input signal warp of measured signal input (8) for whole circuit
Cross amplification and integrating circuit (9) amplifies sinusoidal periodic signal, using multiplier circuit (10) to input signal and reference signal
The reference signal of input (12) input is multiplied, and it is defeated that output signal is transmitted back into measured signal by feedback amplifier (11)
Enter end (8), chaotic output is formed after Oscillatory Coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260400.1A CN107063582A (en) | 2016-12-30 | 2016-12-30 | A kind of aqueduct leakage monitoring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260400.1A CN107063582A (en) | 2016-12-30 | 2016-12-30 | A kind of aqueduct leakage monitoring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107063582A true CN107063582A (en) | 2017-08-18 |
Family
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| CN201611260400.1A Pending CN107063582A (en) | 2016-12-30 | 2016-12-30 | A kind of aqueduct leakage monitoring sensor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169754A (en) * | 2017-12-19 | 2018-06-15 | 北京富迪广通科技发展有限公司 | A kind of undersea detection Sonar system based on Du Fen chaos systems |
| CN108458254A (en) * | 2018-03-13 | 2018-08-28 | 湖北精瑞通流体控制技术有限公司 | Chaos system harmonic response pipeline monitors system |
| CN108692857A (en) * | 2018-03-29 | 2018-10-23 | 安徽省天虹绿洲环保科技有限公司 | A kind of separator tube for pressure gauge |
| CN108870091A (en) * | 2018-07-19 | 2018-11-23 | 东北大学 | Line leakage system and method based on low-and high-frequency hybrid detection |
| CN110645484A (en) * | 2019-10-10 | 2020-01-03 | 杭州绿洁环境科技股份有限公司 | Transport pipeline monitoring system and method |
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| FR2600163A1 (en) * | 1986-06-16 | 1987-12-18 | Metravib Sa | Method and device for detecting and locating leaks in a pipe through which a fluid passes |
| RU2196312C2 (en) * | 2001-04-03 | 2003-01-10 | Кармазинов Феликс Владимирович | Facility to search for point of leakage in trunk pipe-line |
| CN101598263A (en) * | 2009-07-10 | 2009-12-09 | 东北大学 | Portable pipeline leakage detection method and device |
| CN101886742A (en) * | 2010-06-17 | 2010-11-17 | 北京工业大学 | Leakage and pipe explosion early warning system for city water supply network |
| CN104919295A (en) * | 2012-12-11 | 2015-09-16 | 管道监控公司 | System and method for supervising, managing, and monitoring the structural integrity of a fluid- transportation pipeline network, for locating the leaking point, and for evaluating the extent of the failure |
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| FR2600163A1 (en) * | 1986-06-16 | 1987-12-18 | Metravib Sa | Method and device for detecting and locating leaks in a pipe through which a fluid passes |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169754A (en) * | 2017-12-19 | 2018-06-15 | 北京富迪广通科技发展有限公司 | A kind of undersea detection Sonar system based on Du Fen chaos systems |
| CN108458254A (en) * | 2018-03-13 | 2018-08-28 | 湖北精瑞通流体控制技术有限公司 | Chaos system harmonic response pipeline monitors system |
| CN108458254B (en) * | 2018-03-13 | 2023-11-03 | 湖北精瑞通流体控制技术有限公司 | Harmonic response pipeline monitoring system of chaotic system |
| CN108692857A (en) * | 2018-03-29 | 2018-10-23 | 安徽省天虹绿洲环保科技有限公司 | A kind of separator tube for pressure gauge |
| CN108870091A (en) * | 2018-07-19 | 2018-11-23 | 东北大学 | Line leakage system and method based on low-and high-frequency hybrid detection |
| CN110645484A (en) * | 2019-10-10 | 2020-01-03 | 杭州绿洁环境科技股份有限公司 | Transport pipeline monitoring system and method |
| CN110645484B (en) * | 2019-10-10 | 2021-09-21 | 杭州绿洁环境科技股份有限公司 | Transport pipeline monitoring system and method |
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Application publication date: 20170818 |