CN111537144A - Pipeline leakage optical fiber monitoring auxiliary calibration system - Google Patents
Pipeline leakage optical fiber monitoring auxiliary calibration system Download PDFInfo
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- CN111537144A CN111537144A CN202010459093.XA CN202010459093A CN111537144A CN 111537144 A CN111537144 A CN 111537144A CN 202010459093 A CN202010459093 A CN 202010459093A CN 111537144 A CN111537144 A CN 111537144A
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- fiber monitoring
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 101
- 238000012544 monitoring process Methods 0.000 title claims abstract description 93
- 238000004891 communication Methods 0.000 claims abstract description 19
- 238000012806 monitoring device Methods 0.000 claims abstract description 19
- 238000005485 electric heating Methods 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001069 Raman spectroscopy Methods 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
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- 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
- G01M3/007—Leak detector calibration, standard leaks
Abstract
The invention discloses an auxiliary calibration system for monitoring pipeline leakage by optical fibers, which comprises: the optical fiber monitoring device comprises an optical fiber monitoring host and optical fiber monitoring wires distributed along a pipeline, wherein an auxiliary calibration device is arranged on each optical fiber monitoring wire, each auxiliary calibration device comprises a controller, an electric heating device, a temperature sensor and a positioning module, and the controller is electrically connected with the electric heating device, the temperature sensor and the positioning module respectively; the system also comprises a wireless communication module, and the optical fiber monitoring host and the controller are in communication connection with the cloud server through the wireless communication module; the cloud server compares the monitoring data of the optical fiber monitoring host with the collected data of the controller, and calibrates the monitoring data of the optical fiber monitoring host. The pipeline leakage optical fiber monitoring auxiliary calibration system provided by the invention is simple in structure and convenient to use, and the detection data of the optical fiber monitoring device is subjected to auxiliary calibration through the auxiliary calibration device, so that the accuracy of the optical fiber leakage monitoring method is further improved.
Description
Technical Field
The invention relates to the technical field of pipeline leakage monitoring, in particular to an auxiliary calibration system for pipeline leakage optical fiber monitoring.
Background
Pipeline transportation has been widely used in modern society as a safe and convenient transportation mode, and efficient and precise pipeline leakage monitoring technology is also continuously developed and advanced for ensuring the safe operation of pipelines and predicting the pipeline risks.
Pipeline optical fiber leakage monitoring system is a novel pipeline leakage monitoring mode, its theory of operation utilizes Raman scattering principle, utilize light to receive the phenomenon that temperature influence can take place a diffuse reflection in the transmission process, through gather and analyze each intensity signal of Raman backlight that produces in the time of optical fiber after the one end of optic fibre is injected into to the one end of optic fibre, obtain the temperature information of relevant position, thereby just can obtain the temperature curve along the whole different positions of optic fibre, optical fiber leakage monitoring system has monitoring range extensively, the leakage monitoring precision is high, obvious advantages such as monitoring resolution precision height. In the prior art, patent CN200410020046.6 discloses a distributed optical fiber oil and gas pipeline leakage monitoring method and device based on the interference principle, the monitoring system requires that an optical cable is laid side by side along the pipeline near the pipeline, and an optical fiber micro-vibration sensor is formed by using optical fibers in the optical cable. For another example, CN200620119429 and CN200610113044.0 are pipeline leakage monitoring devices based on Sagnac fiber optic interferometer.
At present, optical fiber leakage monitoring system mainly comprises optical fiber monitoring host computer and optical fiber monitoring line, and traditional mounting means lays optic fibre on the pipeline and records the rice mark to near ground looks for corresponding actual reference thing, nevertheless because construction error and the stress influence of optic fibre itself can cause the unable straight line of optic fibre to lay, influences the laying length of optic fibre, can not accurately correspond actual pipe network position.
Disclosure of Invention
The invention aims to provide an auxiliary calibration system for monitoring optical fiber for pipeline leakage, which has a simple structure and is convenient to use, and the auxiliary calibration device is used for carrying out auxiliary calibration on detection data of an optical fiber monitoring device, so that the accuracy of an optical fiber leakage monitoring method is further improved.
In order to achieve the purpose, the invention provides the following scheme:
a pipeline leakage optical fiber monitoring auxiliary calibration system comprises an optical fiber monitoring device arranged on a pipeline, wherein the optical fiber monitoring device comprises an optical fiber monitoring host and optical fiber monitoring wires distributed along the pipeline, an auxiliary calibration device is arranged on the optical fiber monitoring wires, the auxiliary calibration device comprises a controller, an electric heating device, a temperature sensor and a positioning module, the controller is electrically connected with the electric heating device, the temperature sensor and the positioning module respectively, the electric heating device is used for heating the optical fiber monitoring wires at the current position, and the temperature sensor is used for collecting the temperature of the optical fiber monitoring wires at the current position;
the system also comprises a wireless communication module, the optical fiber monitoring host and the controller are respectively connected with the wireless communication module, and the optical fiber monitoring host and the controller are in communication connection with the cloud server through the wireless communication module; and the cloud server compares the monitoring data of the optical fiber monitoring host with the acquired data of the controller, and checks and calibrates the monitoring data of the optical fiber monitoring host.
Optionally, the auxiliary calibration device further comprises a portable power supply for supplying power to the auxiliary calibration device.
Optionally, the portable power source adopts a 12V lithium battery.
Optionally, the electric heating device is a constant temperature PTC aluminum shell ceramic heating device.
Optionally, the positioning module adopts a GPS and a beidou satellite positioning chip.
Optionally, the controller is a single chip microcomputer.
Optionally, the wireless communication module is a 4G network module.
Optionally, the cloud server is an ali cloud server.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: the pipeline leakage optical fiber monitoring auxiliary calibration system provided by the invention aims at the problem that the laying length of the optical fiber cannot accurately correspond to the actual pipe network position due to the optical fiber laying construction error and the stress influence of the optical fiber in the optical fiber monitoring method, and an auxiliary calibration device is independently arranged and matched with the optical fiber monitoring device; the auxiliary calibration device can accurately collect the temperature and the positioning data of the current optical fiber monitoring line, and meanwhile, the optical fiber monitoring device positions the temperature rise position of the optical fiber monitoring line based on the optical fiber monitoring principle, and analyzes and contrasts the data collected by the optical fiber monitoring line and the positioning data through the cloud server, so that whether the monitoring data of the optical fiber monitoring device is accurate or not can be detected, and a good foundation is laid for improving pipeline leakage monitoring.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of an auxiliary calibration system for monitoring pipeline leakage optical fibers according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an auxiliary calibration device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an auxiliary calibration system for monitoring leakage of a pipeline according to an embodiment of the present invention;
reference numerals: 1. a cloud server; 2. a wireless communication module; 3. a controller; 4. a temperature sensor; 5. a positioning module; 6. an electric heating device; 7. a portable power supply.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an auxiliary calibration system for monitoring optical fiber for pipeline leakage, which has a simple structure and is convenient to use, and the auxiliary calibration device is used for carrying out auxiliary calibration on detection data of an optical fiber monitoring device, so that the accuracy of an optical fiber leakage monitoring method is further improved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below. It is analyzed that the short-circuit fault is the main cause of the voltage sag, and thus the method is described as an example for the short-circuit fault.
As shown in fig. 1 to 2, the pipeline leakage optical fiber monitoring auxiliary calibration system provided by the present invention includes an optical fiber monitoring device disposed on a pipeline, the optical fiber monitoring device includes an optical fiber monitoring host and an optical fiber monitoring line disposed along the pipeline, an auxiliary calibration device is disposed on the optical fiber monitoring line, the auxiliary calibration system is clamped on the optical fiber monitoring line to be measured through a strapping tape in a construction process as shown in fig. 1, the auxiliary calibration device includes a controller 3, an electric heating device 6, a temperature sensor 4 and a positioning module 5, the controller 3 is electrically connected with the electric heating device 6, the temperature sensor 4 and the positioning module 5 respectively, the electric heating device 6 is used for heating the optical fiber monitoring line at a current position, and the temperature sensor 4 is used for collecting a temperature of the optical fiber monitoring line at the current position;
the system also comprises a wireless communication module 2, the optical fiber monitoring host and the controller 3 are respectively connected with the wireless communication module 2, and the optical fiber monitoring host and the controller are in communication connection with the cloud server 1 through the wireless communication module 2; the cloud server 1 compares the monitoring data of the optical fiber monitoring host with the collected data of the controller 3, and checks and calibrates the monitoring data of the optical fiber monitoring host.
Wherein the auxiliary calibration device further comprises a portable power supply 7 for providing power to the auxiliary calibration device. The portable power supply adopts a 12V lithium battery.
The electric heating device 6 adopts a constant-temperature PTC aluminum shell ceramic heating device, has the functions of small volume, high temperature rise speed, accurate temperature change control and the like, and is mainly responsible for heating the optical fiber monitoring line of the current position to a constant temperature.
The controller 3 adopts a single chip microcomputer.
The wireless communication module 2 is a 4G network module, and adopts the current mainstream 3G and 4G signals to receive, transmit and send information.
The cloud server 1 is an ali cloud server and can perform functions of data real-time storage, information calling, background instruction sending and the like.
As shown in fig. 3, in a specific working process, the auxiliary calibration device collects position information through the positioning module and transmits the position information to the controller, the temperature sensor collects temperature data and transmits the temperature data to the controller, the controller controls the electric heating device to heat the optical fiber, and when the temperature rises to a certain temperature, the heating unit keeps a preset temperature constant and generates heat; the controller transmits the position information and the temperature information to the cloud server;
meanwhile, the optical fiber monitoring device scans the optical fiber monitoring line, and carries out positioning monitoring on the place where the temperature of the optical fiber monitoring line changes, namely, the place where the pipeline leakage possibly occurs is simulated and positioned, the optical fiber monitoring host continuously records the temperature and distance change curve chart of the whole optical fiber and transmits the temperature and distance change curve chart to the cloud server,
the cloud server performs data processing on the received temperature curve and positioning information of the optical fiber monitoring device and the position information and temperature information of the auxiliary calibration device through an analysis unit; then, a calibration analysis unit on the cloud server performs analysis and comparison on a plurality of groups of data, matches and binds with a GPS positioning signal uploaded by the auxiliary calibration device, and automatically marks the actual pipeline temperature and position information on a map.
The pipeline leakage optical fiber monitoring auxiliary calibration system provided by the invention has the characteristics of simplicity and convenience in operation, high measurement precision, small influence of regions, quick temperature rise and the like; aiming at the problem that the laying length of the optical fiber cannot accurately correspond to the actual pipe network position due to the optical fiber laying construction error and the stress influence of the optical fiber in the optical fiber monitoring method, an auxiliary calibration device is separately arranged and matched with the optical fiber monitoring device; the auxiliary calibration device can accurately collect the temperature and the positioning data of the current optical fiber monitoring line, and meanwhile, the optical fiber monitoring device positions the temperature rise position of the optical fiber monitoring line based on the optical fiber monitoring principle, and analyzes and contrasts the data collected by the optical fiber monitoring line and the positioning data through the cloud server, so that whether the monitoring data of the optical fiber monitoring device is accurate or not can be detected, and a good foundation is laid for improving pipeline leakage monitoring.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A pipeline leakage optical fiber monitoring auxiliary calibration system comprises an optical fiber monitoring device arranged on a pipeline, wherein the optical fiber monitoring device comprises an optical fiber monitoring host and optical fiber monitoring lines distributed along the pipeline, and is characterized in that the optical fiber monitoring lines are provided with auxiliary calibration devices, each auxiliary calibration device comprises a controller, an electric heating device, a temperature sensor and a positioning module, the controller is respectively and electrically connected with the electric heating device, the temperature sensor and the positioning module, the electric heating device is used for heating the optical fiber monitoring lines at the current position, and the temperature sensors are used for collecting the temperature of the optical fiber monitoring lines at the current position;
the system further comprises a wireless communication module, the optical fiber monitoring host and the controller are respectively connected with the wireless communication module, and the optical fiber monitoring host and the controller are in communication connection with the cloud server through the wireless communication module.
2. The system of claim 1, wherein the auxiliary calibration device further comprises a portable power source for providing power to the auxiliary calibration device.
3. The system of claim 2, wherein the portable power source is a 12V lithium battery.
4. The fiber optic monitoring and auxiliary calibration system for pipeline leakage according to claim 1, wherein the electrical heating device is a constant temperature PTC aluminum shell ceramic heating device.
5. The pipe leakage optical fiber monitoring auxiliary calibration system according to claim 1, wherein the positioning module employs a GPS and a Beidou satellite positioning chip.
6. The pipe leakage optical fiber monitoring auxiliary calibration system according to claim 1, wherein the controller adopts a single chip microcomputer.
7. The pipe leakage fiber monitoring auxiliary calibration system according to claim 1, wherein the wireless communication module is a 4G network module.
8. The pipe leakage optical fiber monitoring auxiliary calibration system according to claim 1, wherein the cloud server is an Alice cloud server.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010459093.XA CN111537144A (en) | 2020-05-27 | 2020-05-27 | Pipeline leakage optical fiber monitoring auxiliary calibration system |
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| CN202010459093.XA CN111537144A (en) | 2020-05-27 | 2020-05-27 | Pipeline leakage optical fiber monitoring auxiliary calibration system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959647A (en) * | 2021-10-25 | 2022-01-21 | 北京卫星环境工程研究所 | Leakage detection method and system suitable for high-speed scanning |
| CN114320470A (en) * | 2021-12-28 | 2022-04-12 | 淮南市阶梯电子科技有限公司 | Coal mine shaft electrical safety monitoring system and method |
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|---|---|---|---|---|
| CN1712919A (en) * | 2005-07-04 | 2005-12-28 | 秦一涛 | Positioning distributed fibre-optical temperature sensing monitor and method for pipeline leakage |
| CN103792025A (en) * | 2013-02-26 | 2014-05-14 | 中国石油天然气股份有限公司 | Optical fiber calibration apparatus |
| CN205209700U (en) * | 2015-07-10 | 2016-05-04 | 青岛派科森光电技术股份有限公司 | Full fiber optic distributed temperature measurement monitored control system of pipeline |
| CN110196118A (en) * | 2019-06-19 | 2019-09-03 | 陕西煤业化工技术研究院有限责任公司 | A kind of dynamic temperature calibration self-calibrating device and method |
| CN211877305U (en) * | 2020-05-27 | 2020-11-06 | 唐山兴邦管道工程设备有限公司 | Pipeline leakage optical fiber monitoring auxiliary calibration system |
-
2020
- 2020-05-27 CN CN202010459093.XA patent/CN111537144A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1712919A (en) * | 2005-07-04 | 2005-12-28 | 秦一涛 | Positioning distributed fibre-optical temperature sensing monitor and method for pipeline leakage |
| CN103792025A (en) * | 2013-02-26 | 2014-05-14 | 中国石油天然气股份有限公司 | Optical fiber calibration apparatus |
| CN205209700U (en) * | 2015-07-10 | 2016-05-04 | 青岛派科森光电技术股份有限公司 | Full fiber optic distributed temperature measurement monitored control system of pipeline |
| CN110196118A (en) * | 2019-06-19 | 2019-09-03 | 陕西煤业化工技术研究院有限责任公司 | A kind of dynamic temperature calibration self-calibrating device and method |
| CN211877305U (en) * | 2020-05-27 | 2020-11-06 | 唐山兴邦管道工程设备有限公司 | Pipeline leakage optical fiber monitoring auxiliary calibration system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959647A (en) * | 2021-10-25 | 2022-01-21 | 北京卫星环境工程研究所 | Leakage detection method and system suitable for high-speed scanning |
| CN113959647B (en) * | 2021-10-25 | 2024-03-08 | 北京卫星环境工程研究所 | Leakage detection method and system suitable for high-speed scanning |
| CN114320470A (en) * | 2021-12-28 | 2022-04-12 | 淮南市阶梯电子科技有限公司 | Coal mine shaft electrical safety monitoring system and method |
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