CN117346082A - Oil pipeline leakage monitoring safety early warning system - Google Patents
Oil pipeline leakage monitoring safety early warning system Download PDFInfo
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- CN117346082A CN117346082A CN202311335048.3A CN202311335048A CN117346082A CN 117346082 A CN117346082 A CN 117346082A CN 202311335048 A CN202311335048 A CN 202311335048A CN 117346082 A CN117346082 A CN 117346082A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000004458 analytical method Methods 0.000 claims abstract description 10
- 238000013500 data storage Methods 0.000 claims abstract description 6
- 238000007726 management method Methods 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims description 70
- 238000007405 data analysis Methods 0.000 claims description 32
- 238000004891 communication Methods 0.000 claims description 14
- 238000011156 evaluation Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 57
- 238000000034 method Methods 0.000 description 7
- 239000002910 solid waste Substances 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Examining Or Testing Airtightness (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses an oil pipeline leakage monitoring safety early warning system, which comprises a central processor, wherein the input end of the central processor is connected with the output end of a monitoring management platform, the central processor is in bidirectional connection with a data storage module, the output end of the central processor is connected with the input end of a monitoring detection module, the output end of the monitoring detection module is connected with the input end of a node selection module, the output end of the node selection module is connected with the input end of a data anomaly analysis module, the output end of the data anomaly analysis module is connected with the output end of a judgment module, the output end of the judgment module is connected with the input end of a microprocessor, and the output end of the microprocessor is connected with the input end of a signal transmitter. This oil pipeline leakage monitoring safety precaution system, the cost is reduced, and through the data contrast and the detection of many levels, improved oil pipeline leakage monitoring's accuracy, the timely maintenance of being convenient for and control, guaranteed the security, and positioning accuracy is high, has improved monitoring performance.
Description
Technical Field
The invention relates to the technical field of oil pipelines, in particular to a safety early warning system for monitoring leakage of an oil pipeline.
Background
The oil pipeline (also called pipeline) is composed of oil pipe and its accessories, and is equipped with correspondent oil pump unit according to the requirements of technological process, and designed and installed into a complete pipeline system for completing oil receiving, unloading and transferring tasks. The pipeline system for transporting petroleum and petroleum products is mainly composed of oil pipeline, oil station and other auxiliary related equipment, and is one of the main equipment in petroleum storage and transportation industry, and is also the most main conveying equipment for crude oil and petroleum products. The pipe material of the oil pipeline is generally a steel pipe, and is connected with a long-distance pipeline by using a connecting device such as welding, a flange and the like, and is controlled to open and close and flow rate is regulated by using a valve. The oil pipeline mainly comprises isothermal conveying, heating conveying, sequential conveying and other conveying processes. Corrosion of pipelines and how to prevent corrosion are one of the important links of pipeline maintenance. Oil pipelines have become one of the main transportation tools for petroleum and still have considerable development potential in the future. With the rapid increase of economy, the production amount of solid waste in China is in an increasing trend, the clear transportation amount of household garbage in 2010 is over 1.5 hundred million tons, the production amount of industrial hazardous waste is 1429 ten thousand tons, the storage amount of hazardous waste in the past year is up to hundred million tons, and the potential danger of pollution of a large amount of produced solid waste to the environment is not negligible. Landfill disposal is the final disposal of solid waste. When the waste is buried, an artificial impermeable lining layer is paved on the landfill to isolate the inside and the outside of the landfill and prevent pollutant percolate in the landfill from entering the soil and the underground water, so that secondary pollution to underground water, soil and the like is prevented, and the synthetic material of the artificial impermeable lining layer mainly adopts high-density polyethylene (HDPE). In the landfill construction and operation process, the seepage appears in the impervious layer easily because of construction quality or improper operation. Hundreds of solid waste landfill disposal facilities to be newly built nationwide are in urgent need to monitor the safe operation condition by adopting an impermeable layer leakage on-line monitoring and detecting technology. At present, the existing oil pipeline leakage monitoring technology cannot be widely popularized and applied due to cost reasons, and the accuracy of oil pipeline leakage monitoring is to be improved.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a safety early warning system for monitoring leakage of an oil pipeline, which solves the problems of the background art.
(II) technical scheme
In order to achieve the above purpose, the present invention is realized by the following technical scheme: the utility model provides an oil pipeline leakage monitoring safety precaution system, includes central processing unit, central processing unit's input is connected with the output of control management platform, central processing unit is connected with data storage module both way, central processing unit's output is connected with the input of control detection module, the output of control detection module is connected with the input of node selection module, the output of node selection module is connected with the input of data exception analysis module, the output of data exception analysis module is connected with the output of judgement module, the output of judgement module is connected with microprocessor's input, microprocessor's output is connected with signal transmitter's input, signal transmitter's output is connected with feedback module's input, feedback module's output is connected with data signal processor DSP's input, the output end of the DSP is connected with the input end of a comparison module, the output end of the comparison module is connected with the input end of an alarm module, the output end of the alarm module is connected with the input end of a communication module, the output end of the communication module is connected with the input end of a mobile terminal, the comparison module comprises a first prompt module, a second prompt module, a third prompt module and a fourth prompt module, the alarm module comprises a first alarm node, a second alarm node, a third alarm node and a fourth alarm node, the output end of the first prompt module is connected with the input end of the first alarm node, the output end of the second prompt module is connected with the input end of the second alarm node, the output end of the third prompt module is connected with the input end of the third alarm node, the output end of the fourth prompt module is connected with the input end of the fourth alarm node, the intelligent monitoring system comprises a first alarm node, a second alarm node, a third alarm node and a fourth alarm node, wherein the output ends of the first alarm node, the third alarm node and the fourth alarm node are connected with the input end of a communication module, the output end of the communication module is connected with the input end of a mobile terminal, warning devices are arranged on the first alarm node, the second alarm node, the third alarm node and the fourth alarm node, and an acoustic wave leakage detection system is further arranged in the monitoring detection module to monitor the damage condition of a pipeline.
Further, the monitoring detection module comprises a data acquisition module and a data processing module, the output end of the central processing unit is connected with the input end of the data acquisition module, the input end of the data acquisition module is connected with the output end of the data processing module, and the output end of the data processing module is connected with the input end of the node selection module.
Further, the data acquisition module comprises a first oil delivery pipe flow data acquisition device, a second oil delivery pipe flow data acquisition device, a third oil delivery pipe flow data acquisition device and a fourth oil delivery pipe flow data acquisition device, the data processing module comprises a first data processing module, a second data processing module and a third data processing module, the output end of the central processing unit is respectively connected with the input ends of the first oil delivery pipe flow data acquisition device, the second oil delivery pipe flow data acquisition device, the third oil delivery pipe flow data acquisition device and the fourth oil delivery pipe flow data acquisition device, the first oil delivery pipe flow data acquisition device, the second oil delivery pipe flow data acquisition device, the third oil delivery pipe flow data acquisition device and the fourth oil delivery pipe flow data acquisition device are respectively connected with the input ends of the corresponding first data processing module, the second data processing module, the third data processing module and the fourth data processing module, and the output end of the fourth data processing module are respectively connected with the input end of the node selection module.
Further, the node selection module comprises a first data analysis node, a second data analysis node, a third data analysis node and a fourth data analysis node, wherein the output end of the first data processing module is connected with the input end of the first data analysis node, the output end of the second data processing module is connected with the input end of the second data analysis node, the output end of the third data processing module is connected with the input end of the third data analysis node, and the output end of the fourth data processing module is connected with the input end of the fourth data analysis node.
Further, the mobile terminal comprises a mobile terminal I, a mobile terminal II and a mobile terminal III, wherein the mobile terminal I is a primary terminal, the mobile terminal II is a secondary terminal, the mobile terminal III is a final terminal, and the primary terminal, the secondary terminal and the final terminal are preset value terminals of different grades.
Further, a weight checking module is arranged between the judging module and the microprocessor.
Further, the system also comprises an evaluation module, wherein the evaluation module is connected with the output end of the data signal processor DSP.
Further, the mobile terminal comprises a display module, wherein the display module is connected to the output end of the mobile terminal.
(III) beneficial effects
The invention provides a safety early warning system for oil pipeline leakage monitoring. The beneficial effects are as follows: the oil pipeline leakage monitoring safety early warning system is characterized in that the cost is reduced through the arrangement of a central processing unit, a monitoring management platform, a data storage module, a monitoring detection module, a data acquisition module, an oil pipeline flow data acquisition device I, an oil pipeline flow data acquisition device II, an oil pipeline flow data acquisition device III, an oil pipeline flow data acquisition device IV, a data processing module, a node selection module, a data analysis node I, a data analysis node II, a data analysis node III and a data analysis node IV, a data anomaly analysis module, a judgment module, a microprocessor, a signal transmitter, a feedback module, a data signal processor DSP, a comparison module, an alarm module, a communication module and a mobile terminal, and the accuracy of oil pipeline leakage monitoring is improved through multi-level data comparison and detection, so that the oil pipeline leakage monitoring is convenient to overhaul and control in time, the safety is ensured, the positioning accuracy is high, and the monitoring performance is improved.
Drawings
FIG. 1 is a block diagram of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the present invention provides a technical solution: the utility model provides an oil pipeline leakage monitoring safety precaution system, includes central processing unit, central processing unit's input is connected with the output of control management platform, central processing unit is connected with data storage module both way, central processing unit's output is connected with the input of control detection module, the output of control detection module is connected with the input of node selection module, the output of node selection module is connected with the input of data exception analysis module, the output of data exception analysis module is connected with the output of judgement module, the output of judgement module is connected with microprocessor's input, microprocessor's output is connected with signal transmitter's input, signal transmitter's output is connected with feedback module's input, feedback module's output is connected with data signal processor DSP's input, the output end of the DSP is connected with the input end of a comparison module, the output end of the comparison module is connected with the input end of an alarm module, the output end of the alarm module is connected with the input end of a communication module, the output end of the communication module is connected with the input end of a mobile terminal, the comparison module comprises a first prompt module, a second prompt module, a third prompt module and a fourth prompt module, the alarm module comprises a first alarm node, a second alarm node, a third alarm node and a fourth alarm node, the output end of the first prompt module is connected with the input end of the first alarm node, the output end of the second prompt module is connected with the input end of the second alarm node, the output end of the third prompt module is connected with the input end of the third alarm node, the output end of the fourth prompt module is connected with the input end of the fourth alarm node, the output ends of the first alarm node, the second alarm node, the third alarm node and the fourth alarm node are connected with the input end of the communication module, and the output end of the communication module is connected with the input end of the mobile terminal. The mobile terminal comprises a mobile terminal I, a mobile terminal II and a mobile terminal III, wherein the mobile terminal I is a primary terminal, the mobile terminal II is a secondary terminal, the mobile terminal III is a final terminal, and the primary terminal, the secondary terminal and the final terminal are preset value terminals of different grades. The first prompt module, the second prompt module, the third prompt module and the fourth prompt module all play roles in prompt and contrast, the first alarm node is included, the second alarm node, the third alarm node and the fourth alarm node are all provided with alarms, and the inside of the monitoring detection module is also provided with an acoustic wave leakage detection system so as to monitor the damage condition of the pipeline.
Specifically, the monitoring detection module comprises a data acquisition module and a data processing module, wherein the output end of the central processing unit is connected with the input end of the data acquisition module, the input end of the data acquisition module is connected with the output end of the data processing module, and the output end of the data processing module is connected with the input end of the node selection module.
Specifically, the data acquisition module comprises a first oil delivery pipe flow data acquisition device, a second oil delivery pipe flow data acquisition device, a third oil delivery pipe flow data acquisition device and a fourth oil delivery pipe flow data acquisition device, the data processing module comprises a first data processing module, a second data processing module and a third data processing module, the output end of the central processing unit is respectively connected with the input ends of the first oil delivery pipe flow data acquisition device, the second oil delivery pipe flow data acquisition device, the third oil delivery pipe flow data acquisition device and the fourth oil delivery pipe flow data acquisition device, the first oil delivery pipe flow data acquisition device, the second oil delivery pipe flow data acquisition device, the third oil delivery pipe flow data acquisition device and the fourth oil delivery pipe flow data acquisition device are respectively connected with the input ends of the corresponding first data processing module, the second data processing module, the third data processing module and the fourth data processing module, and the output end of the fourth data processing module are respectively connected with the input end of the node selection module.
Specifically, the node selection module includes a first data analysis node, a second data analysis node, a third data analysis node and a fourth data analysis node, the output end of the first data processing module is connected with the input end of the first data analysis node, the output end of the second data processing module is connected with the input end of the second data analysis node, the output end of the third data processing module is connected with the input end of the third data analysis node, the output end of the fourth data processing module is connected with the input end of the fourth data analysis node, and meanwhile, contents which are not described in detail in the specification all belong to the prior art known by those skilled in the art.
Specifically, a weight checking module is arranged between the judging module and the microprocessor. The oil pipeline leakage monitoring safety early warning system further comprises an evaluation module, wherein the evaluation module is connected to the output end of the data signal processor DSP. The oil pipeline leakage monitoring safety early warning system further comprises a display module, and the display module is connected to the output end of the mobile terminal.
In summary, the oil pipeline leakage monitoring safety early warning system is realized by the arrangement of a central processing unit, a monitoring management platform, a data storage module, a monitoring detection module, a data acquisition module, an oil pipeline flow data acquisition device I, an oil pipeline flow data acquisition device II, an oil pipeline flow data acquisition device III, an oil pipeline flow data acquisition device IV, a data processing module, a node selection module, a data analysis node I, a data analysis node II, a data analysis node III and a data analysis node IV, a data anomaly analysis module, a judgment module, a microprocessor, a signal transmitter, a feedback module, a data signal processor DSP, a comparison module, an alarm module, a communication module and a mobile terminal, so that the cost is reduced, the accuracy of oil pipeline leakage monitoring is improved through data comparison and detection of multiple levels, the timely maintenance and control are facilitated, the safety is ensured, the positioning accuracy is high, and the monitoring performance is improved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principle and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents, it should be noted that the electrical components appearing herein are all electrically connected to an external master controller and 220V mains, and the master controller may be a conventionally known device for controlling a computer or the like.
Claims (8)
1. The utility model provides an oil pipeline leakage monitoring safety precaution system, includes central processing unit, its characterized in that: the input end of the central processing unit is connected with the output end of the monitoring management platform, the central processing unit is connected with the data storage module in a two-way, the output end of the central processing unit is connected with the input end of the monitoring detection module, the output end of the monitoring detection module is connected with the input end of the node selection module, the output end of the node selection module is connected with the input end of the data anomaly analysis module, the output end of the data anomaly analysis module is connected with the output end of the judgment module, the output end of the judgment module is connected with the input end of the microprocessor, the output end of the microprocessor is connected with the input end of the signal transmitter, the output end of the signal transmitter is connected with the input end of the feedback module, the output end of the feedback module is connected with the input end of the data signal processor DSP, the output end of the data signal processor DSP is connected with the input end of the comparison module, the output end of the comparison module is connected with the input end of the alarm module, the output end of the alarm module is connected with the input end of the communication module, the output end of the communication module is connected with the input end of the mobile terminal, the comparison module comprises a first alarm node, a second alarm node, a third alarm node and a fourth alarm node, the alarm module comprises a first alarm node, a second alarm node, a third alarm node and a fourth alarm node, the output end of the first alarm module is connected with the input end of the first alarm node, the output end of the second alarm module is connected with the input end of the second alarm node, the output end of the third alarm module is connected with the input end of the third alarm node, the output end of the fourth alarm module is connected with the input end of the fourth alarm node, the first alarm node, the second alarm node, the fourth alarm node are included, the output end of the alarm node III and the output end of the alarm node IV are connected with the input end of the communication module, the output end of the communication module is connected with the input end of the mobile terminal, the alarm node I, the alarm node II, the alarm node III and the alarm node IV are all provided with alarms, and the inside of the monitoring detection module is also provided with an acoustic wave leakage detection system so as to monitor the damage condition of the pipeline.
2. The oil pipeline leakage monitoring safety precaution system of claim 1, wherein: the monitoring detection module comprises a data acquisition module and a data processing module, wherein the output end of the central processing unit is connected with the input end of the data acquisition module, the input end of the data acquisition module is connected with the output end of the data processing module, and the output end of the data processing module is connected with the input end of the node selection module.
3. The oil pipeline leakage monitoring safety precaution system of claim 2, wherein: the data acquisition module comprises a first oil delivery pipe flow data acquisition device, a second oil delivery pipe flow data acquisition device, a third oil delivery pipe flow data acquisition device and a fourth oil delivery pipe flow data acquisition device, the data processing module comprises a first data processing module, a second data processing module and a third data processing module, the output end of the central processing unit is respectively connected with the input ends of the first oil delivery pipe flow data acquisition device, the second oil delivery pipe flow data acquisition device, the third oil delivery pipe flow data acquisition device and the fourth oil delivery pipe flow data acquisition device, the first oil delivery pipe flow data acquisition device, the second oil delivery pipe flow data acquisition device, the third oil delivery pipe flow data acquisition device and the fourth oil delivery pipe flow data acquisition device are respectively connected with the input ends of the corresponding first data processing module, the second data processing module, the third data processing module and the fourth data processing module, and the output end of the third data processing module is connected with the input end of the node selection module.
4. The oil pipeline leakage monitoring safety precaution system of claim 3, wherein: the node selection module comprises a first data analysis node, a second data analysis node, a third data analysis node and a fourth data analysis node, wherein the output end of the first data processing module is connected with the input end of the first data analysis node, the output end of the second data processing module is connected with the input end of the second data analysis node, the output end of the third data processing module is connected with the input end of the third data analysis node, and the output end of the fourth data processing module is connected with the input end of the fourth data analysis node.
5. The oil pipeline leakage monitoring safety precaution system of claim 1, wherein: the mobile terminal comprises a mobile terminal I, a mobile terminal II and a mobile terminal III, wherein the mobile terminal I is a primary terminal, the mobile terminal II is a secondary terminal, the mobile terminal III is a final terminal, and the primary terminal, the secondary terminal and the final terminal are preset value terminals of different grades.
6. The oil pipeline leakage monitoring safety precaution system of claim 1, wherein: and a weight checking module is arranged between the judging module and the microprocessor.
7. The oil pipeline leakage monitoring safety precaution system of claim 1, wherein: the system also comprises an evaluation module, wherein the evaluation module is connected with the output end of the data signal processor DSP.
8. The oil pipeline leakage monitoring safety precaution system of claim 1, wherein: the mobile terminal also comprises a display module, wherein the display module is connected to the output end of the mobile terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311335048.3A CN117346082A (en) | 2023-10-16 | 2023-10-16 | Oil pipeline leakage monitoring safety early warning system |
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| CN202311335048.3A CN117346082A (en) | 2023-10-16 | 2023-10-16 | Oil pipeline leakage monitoring safety early warning system |
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| CN202311335048.3A Pending CN117346082A (en) | 2023-10-16 | 2023-10-16 | Oil pipeline leakage monitoring safety early warning system |
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