Intelligent basalt fiber pipeline based on optical fiber sensing

Abstract

The invention relates to an intelligent basalt fiber pipeline based on optical fiber sensing in the field of pipelines, which comprises a structural layer, an inner pipe body is connected in the structural layer, and the structural layer is sleeved with an outer protective layer; a plurality of threading grooves are formed in the inner wall of the outer protection layer, optical fiber sensing lines are installed in the threading grooves, and temperature sensors and vibration sensors are installed on the optical fiber sensing lines; pressure monitoring rings matched with the optical fiber sensing lines are installed at the two ends of the structural layer, monitoring units are installed at the pressure monitoring rings in an embedded mode, each monitoring unit comprises a plurality of evenly-distributed grating sensors, and the monitoring units are used for detecting the sealing performance of the pressure monitoring rings; the main butt joint ring is used for normal leakage self-repairing; the auxiliary butt joint ring is used for auxiliary sealing of normal leakage self-repairing, real-time monitoring and intelligent early warning of the pipeline state are achieved through the optical fiber sensing technology, and the safety and reliability of the pipeline are improved.

Description

Technical Field

[0001] The present invention relates to a basalt fiber intelligent pipeline based on optical fiber sensing, and in particular to a basalt fiber intelligent pipeline based on optical fiber sensing applied in the pipeline field. Background Art

[0002] Basalt fiber pipe is a pipe product made of basalt fiber material. Basalt fiber is a high-performance inorganic fiber with excellent high temperature resistance, corrosion resistance, high strength and low density. It is a fiber material made by melting basalt ore at high temperature and drawing it through a specific process.

[0003] Basalt fiber pipes have broad application prospects in the petroleum, chemical, electric power, water treatment and other industries. Due to its excellent high temperature resistance, basalt fiber pipes can withstand high temperature environments up to 600°C, which makes it have obvious advantages in transporting high temperature media. At the same time, basalt fiber pipes also have good chemical stability and can resist corrosion from a variety of acids, alkalis and organic solvents, and are suitable for various harsh chemical environments.

[0004] The specification of Chinese invention patent CN111237557B discloses a high-strength, corrosion-resistant basalt fiber composite water supply and drainage pipe, including a No. 1 connecting pipe and a No. 2 connecting pipe, wherein the No. 2 connecting pipe is located on one side of the No. 1 connecting pipe, and a pipe connector is sleeved at the joint between the No. 1 connecting pipe and the No. 2 connecting pipe, a sealing seat is fixedly installed on the inner surface of the No. 1 connecting pipe near the end, and a sealing ring is fixedly installed on the inner surface of the No. 2 connecting pipe near the end. The high-strength, corrosion-resistant basalt fiber composite water supply and drainage pipe of the invention can be tightened after the water supply and drainage pipes are connected, and can improve the stability of the placement of the water supply and drainage pipes.

[0005] Chinese invention patent CN119189432B discloses a high-strength basalt fiber drainage pipe and its production process. The inner and outer layers are composited with basalt fiber reinforced materials and high-performance polyester resins. The middle layer uses a mixture of styrene-butadiene rubber and polyurethane to form a leak-proof self-healing polymer rubber layer. When a leak occurs, the cobalt chloride at the leaking port will absorb water and change color, which can detect the leak more intuitively, quickly and accurately.

[0006] At present, there are obvious deficiencies in the health monitoring methods for basalt fiber tubes, especially in detecting and diagnosing their structural integrity. When fiber tubes leak at the joints, there is a lack of effective remedial measures to deal with and repair them, which may lead to further structural damage and potential safety risks. Summary of the invention

[0007] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that currently, there are obvious deficiencies in the health monitoring methods for basalt fiber tubes, especially in detecting and diagnosing their structural integrity. When the fiber tube has leakage problems at the connection parts, there is a lack of effective remedial measures to deal with and repair them, which may lead to further structural damage and potential safety risks.

[0008] In order to solve the above problems, the present invention provides a basalt fiber intelligent pipeline based on optical fiber sensing, comprising a structural layer, an inner pipe body is connected to the structural layer, and an outer protective layer is sleeved on the structural layer;

[0009] A plurality of threading grooves are provided on the inner wall of the outer protective layer, optical fiber sensing lines are installed in the threading grooves, and temperature sensors and vibration sensors are installed on the optical fiber sensing lines;

[0010] Pressure monitoring rings matching the optical fiber sensing line are installed at both ends of the structural layer, and a matching monitoring unit is embedded and installed at the pressure monitoring ring. The monitoring unit includes a plurality of evenly distributed grating sensors, and the monitoring unit is used to detect the sealing of the pressure monitoring ring;

[0011] The pressure monitoring rings at both ends of the structural layer are respectively installed with a main docking ring and a secondary docking ring; the main docking ring includes a main ring body, the end face of which is provided with an installation groove, the bottom end of which is provided with an electric heating ring, and a thermal expansion ring is slidably connected in the installation groove; the thermal expansion ring expands toward the opening direction of the installation groove after being heated; the main docking ring is used for normal leakage self-repair;

[0012] The auxiliary docking ring is used for auxiliary sealing of normal leakage self-repair, and a piston docking ring opposite to the thermal expansion ring is arranged inside the auxiliary docking ring.

[0013] In the above-mentioned basalt fiber intelligent pipeline based on optical fiber sensing, real-time monitoring and intelligent early warning of pipeline status are achieved through optical fiber sensing technology.

[0014] As a further improvement of the present application, the secondary docking ring includes a secondary ring body, a sealing groove opposite to the mounting groove is formed on the end face of the secondary ring body, the piston docking ring is slidably connected in the sealing groove, a pressure sensor is installed on the piston docking ring, and an air pipe communicating with the sealing groove is formed on the side end of the secondary ring body. After the sealing groove is inflated through the air pipe, the piston docking ring moves toward the direction of the thermal expansion ring.

[0015] As a further improvement of the present application, a distribution terminal is provided on the outside of the pressure monitoring ring, a power supply unit and a communication unit are provided in the distribution terminal, and an inflation device for air pipe gas supply is installed in the distribution terminal.

[0016] As a further improvement of the present application, the structural layer is a basalt fiber braided layer, and a plurality of end-spirally wound FBG optical fibers are embedded in the basalt fiber braided layer, a plurality of wiring nodes electrically connected to the FBG optical fibers are arranged on the outer surface of the structural layer, and the outer protective layer is electrically connected to the wiring nodes.

[0017] As a further improvement of the present application, the outer layer of the outer protective layer is coated with a corrosion-resistant coating, and the inner wall of the outer protective layer between two adjacent threading grooves is paved with a heat-conducting layer.

[0018] As another improvement of the present application, a sealing gasket is provided between a pair of pressure monitoring rings, and the monitoring unit detects whether the compression deformation of the sealing gasket is uniform through the grating wavelength offset.

[0019] As another improvement of the present application, an auxiliary monitoring system is also included, and the auxiliary monitoring system includes a data processing module, an early warning module, a data acquisition module, a control module and a self-checking module;

[0020] The data acquisition module is used to collect monitoring data, including monitoring data collected by the outer protective layer and the pressure monitoring ring;

[0021] The data processing module is used to process and analyze monitoring data and determine the pipeline status by analyzing the monitoring data;

[0022] The early warning module is used to execute the preset early warning plan according to the pipeline status;

[0023] The control module is used for power distribution and control of the main docking ring and distribution terminal operation.

[0024] As another improved supplement of the present application, a three-level warning scheme is set in the warning module. In the first-level warning, the system records and generates an inspection work order, and sends the inspection work order to the preset contact person. When there is monitoring data exceeding the set value range, the first-level warning is triggered;

[0025] In the case of a Level 2 warning, the pipeline pressure is automatically reduced and an alarm is pushed to the preset contact. When multiple types of monitoring data are combined and abnormal, a Level 2 warning is triggered;

[0026] When the third-level warning is triggered, the designated valve is closed, and the main docking ring is started for self-repair and the preset contact is notified. When any type of monitoring data is greater than the maximum set threshold, the third-level warning is triggered.

[0027] As another improved supplement of the present application, the auxiliary monitoring system also includes a self-test module, which is used for system health detection and data integrity verification. When the self-test module is working: it will first check the status of each sensor in the system to detect whether the sensors are in normal working condition; at the same time, the self-test module will test the data transmission link to verify whether the data transmission is stable and reliable.

[0028] In summary, this scheme realizes real-time monitoring and intelligent early warning of pipeline status through optical fiber sensing technology, obtains a basalt fiber pipeline with real-time monitoring, efficient maintenance and intelligent early warning functions, and improves the safety and reliability of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a three-dimensional diagram of the pipeline of the first embodiment of the present application;

[0030] Figure 2 This is a side sectional view of the first embodiment of the present application;

[0031] Figure 3 for Figure 2 The structural diagram at A in the middle;

[0032] Figure 4 This is a partial cross-sectional view of the thermal expansion ring of the first embodiment of the present application when a composite ring is used;

[0033] Figure 5 This is a three-dimensional view of the pipeline end surface of the first embodiment of the present application;

[0034] Figure 6 This is a usage state diagram of the first implementation mode of this application;

[0035] Figure 7 This is a system block diagram of the second implementation mode of the present application;

[0036] Figure 8 This is the logical flow chart of the early warning work of the second implementation mode of this application.

[0037] Description of the numbers in the figure:

[0038] 1. Structural layer; 2. Outer protective layer; 3. Optical fiber sensing line; 4. Pressure monitoring ring; 5. Main docking ring; 51. Main ring body; 52. Electric heating ring; 53. Thermal expansion ring; 6. Auxiliary docking ring; 61. Auxiliary ring body; 62. Piston docking ring; 7. Distribution terminal. DETAILED DESCRIPTION

[0039] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0040] The first implementation method:

[0041] Figure 1 - Figure 6 It shows a basalt fiber intelligent pipeline based on optical fiber sensing, comprising a structural layer 1, an inner pipe body is connected to the structural layer 1, an outer protective layer 2 is sleeved on the structural layer 1, and the outer protective layer 2 is used for external protection of the pipeline;

[0042] The structural layer 1 is a basalt fiber braided layer, and a plurality of end-spirally wound FBG optical fibers are embedded in the basalt fiber braided layer. A plurality of wiring nodes electrically connected to the FBG optical fibers are arranged on the outer surface of the structural layer 1, and the outer protective layer 2 is electrically connected to the wiring nodes.

[0043] The outer layer of the outer protective layer 2 is coated with a corrosion-resistant coating, and the inner wall of the outer protective layer 2 between two adjacent threading grooves is paved with a heat-conducting layer; a plurality of threading grooves are opened on the inner wall of the outer protective layer 2, and optical fiber sensing lines 3 are installed in the threading grooves, and temperature sensors and vibration sensors are installed on the optical fiber sensing lines 3; the optical fiber sensing lines 3 monitor temperature and vibration in real time; the technicians in this field set appropriate sensors in the prior art on the optical fiber sensing lines 3 to perform multi-point temperature and vibration detection on the pipeline; for example: distributed optical fiber sensors;

[0044] Pressure monitoring rings 4 matching the optical fiber sensing line 3 are installed at both ends of the structural layer 1. The pressure monitoring rings 4 are used for docking and sealing of adjacent pipelines. A monitoring unit matching the pressure monitoring ring 4 is embedded and installed therein, and the monitoring unit is electrically connected to the optical fiber sensing line 3. The monitoring unit includes a plurality of evenly distributed grating sensors, and the monitoring unit is used to detect the sealing of the pressure monitoring ring 4. A suitable grating sensor is selected by a person skilled in the art to detect the sealing of the pressure monitoring ring 4, for example, an FBG sensor capable of detecting local strain.

[0045] A sealing gasket is provided between a pair of pressure monitoring rings 4, and the monitoring unit detects whether the compression deformation of the sealing gasket is uniform through the grating wavelength offset.

[0046] A main docking ring 5 and a secondary docking ring 6 are respectively installed on the pressure monitoring rings 4 at both ends of the structural layer 1; the main docking ring 5 self-repairs the temporary leakage of the pipeline when the optical fiber sensing line 3 detects leakage at the docking point;

[0047] The main docking ring 5 comprises a main ring body 51, which is made of a heat-insulating material. An installation groove is provided on the end face of the main ring body 51, an electric heating ring 52 is installed at the bottom of the installation groove, a heat expansion ring 53 is slidably connected in the installation groove, and the heat expansion ring 53 expands toward the opening direction of the installation groove after being heated; the main docking ring 5 is used for normal leakage self-repair; the heat expansion ring 53 comprises any one of a memory alloy ring that is easily expanded when heated or a composite ring with a built-in heat expansion liquid; the memory alloy ring comprises a pair of alloy rings, a nickel-titanium alloy layer is connected between the pair of alloy rings, and the nickel-titanium alloy layer expands after being heated, thereby causing one alloy ring to move toward the opening of the installation groove;

[0048] The composite ring includes a fixed ring embedded in the mounting groove, and the fixed ring is made of a heat-conducting material and fits with the electric heating ring 52. An annular slide groove is provided on the composite ring, and a movable ring matching the mounting groove is limitedly slidable in the annular slide groove. The annular slide groove is filled with a heat expansion liquid, and a technician in this field can select a suitable heat-expandable liquid in the prior art to fill it, such as acetone and methyl ethyl ketone. The heat expansion liquid expands after being heated, thereby pushing the movable ring to move toward the opening of the mounting groove.

[0049] The auxiliary docking ring 6 includes an auxiliary ring body 61. The end face of the auxiliary ring body 61 is provided with a sealing groove opposite to the installation groove. A piston docking ring 62 is slidably connected in the sealing groove. The piston docking ring 62 is opposite to the thermal expansion ring 53. A pressure sensor is installed on the piston docking ring 62. An air pipe communicating with the sealing groove is provided at the side end of the auxiliary ring body 61. After the sealing groove is inflated through the air pipe, the piston docking ring 62 moves toward the direction of the thermal expansion ring 53. The auxiliary docking ring 6 is used for auxiliary sealing of normal leakage self-repair.

[0050] A distribution terminal 7 is arranged outside the pressure monitoring ring 4, a power supply unit and a communication unit are arranged inside the distribution terminal 7, an air filling device for air pipe gas supply is installed inside the distribution terminal 7, a data transmission line is connected between the main ring body 51 and the distribution terminal 7, and the data collected by the optical fiber sensing line 3 and the pressure monitoring ring 4 are transmitted to the distribution terminal 7 through the data transmission line, and then transmitted to the external system through the communication unit;

[0051] When the main docking ring 5 performs normal self-repair, the heat expansion ring 53 floats after being heated. The heat expansion ring 53 floats into the sealing groove to fill the gap and conflicts with the piston docking ring 62, thereby realizing normal self-repair. When the seal at the pressure monitoring ring 4 is unstable, the main docking ring 5 performs compensatory sealing through the normal self-repair.

[0052] The auxiliary docking ring 6 is used to provide auxiliary sealing when the main docking ring 5 is fatigued or damaged and works abnormally, and the main docking ring 5 cannot complete the preset normal self-repair. The specific working process is that after the main docking ring 5 expands due to heat, when the pressure value detected at the piston docking ring 62 is lower than the set value, it is judged that the main docking ring 5 is working abnormally. At this time, air is inflated into the sealing groove through an external air supply device, and then the piston docking ring 62 moves to squeeze the heat expansion ring 53 to complete the normal self-repair.

[0053] This embodiment uses sensors embedded in the pipeline to monitor the pipeline temperature and vibration changes in real time, and the design of the main docking ring 5 and the auxiliary docking ring 6 makes the pipeline have stronger sealing and self-repairing capabilities at the docking point, thereby realizing real-time monitoring and efficient maintenance of basalt fiber intelligent pipelines.

[0054] Second implementation method:

[0055] The components identical or corresponding to those in the first embodiment are marked with the same reference numerals as those in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that:

[0056] Figure 7 - Figure 8 As shown, it also includes an auxiliary monitoring system, which includes a data processing module, an early warning module, a data acquisition module, a control module and a self-check module;

[0057] The data acquisition module is used to collect monitoring data, including monitoring data collected by the outer protective layer 2 and the pressure monitoring ring 4;

[0058] The data processing module is used to process and analyze monitoring data and determine the pipeline status by analyzing the monitoring data;

[0059] The early warning module is used to execute the preset early warning plan according to the pipeline status;

[0060] The control module is used for power distribution and controlling the operation of the main docking ring 5 and the distribution terminal 7;

[0061] The early warning module is equipped with a three-level early warning scheme. In the first-level early warning, the system records and generates an inspection work order, and sends the inspection work order to the preset contact person. When any type of monitoring data is outside the set safety range value, the first-level early warning is triggered;

[0062] The first-level early warning mechanism ensures the standardization and timeliness of daily pipeline inspections. By generating and sending inspection work orders, it reminds relevant personnel to conduct regular inspections and maintenance of pipelines. When there is monitoring data that exceeds the set value range, a first-level early warning is triggered;

[0063] In the case of a Level 2 warning, the pipeline pressure is automatically reduced and an alarm is pushed to the preset contact. A Level 2 warning is triggered when multiple types of monitoring data are combined with an abnormality, such as when the strain suddenly increases to exceed the set value and the temperature drops below the set value;

[0064] The secondary early warning mechanism automatically reduces pipeline pressure to reduce potential risks in response to abnormal situations in multiple types of monitoring data, and pushes alarm information to preset contacts so that countermeasures can be taken quickly.

[0065] When the third-level warning occurs, the designated valve is triggered to close, and the main docking ring 5 is started to perform self-repair and notify the preset contact person. When any type of monitoring data is greater than the maximum set threshold (which indicates pipeline leakage or structural instability), the third-level warning is triggered;

[0066] Once the third-level warning mechanism detects serious problems such as pipeline leakage or structural instability, it immediately triggers the closure of the designated valve to prevent the situation from further deteriorating, and starts the main docking ring 5 for self-repair, while notifying the preset contact person to ensure that the problem can be solved in a timely and effective manner.

[0067] This implementation method realizes all-round intelligent monitoring and early warning of basalt fiber intelligent pipelines. Through the auxiliary monitoring system, it can collect and analyze the operation data of the pipeline in real time and discover potential safety hazards in time. The setting of the early warning module facilitates the implementation of appropriate solutions to maintain the pipeline when the pipeline is in different abnormal states.

[0068] The third implementation method:

[0069] The components identical or corresponding to those in the second embodiment are marked with the same reference numerals as those in the second embodiment. For the sake of simplicity, only the differences from the second embodiment are described below. The third embodiment differs from the second embodiment in that:

[0070] The auxiliary monitoring system also includes a self-check module, which is used for system health detection and data integrity verification. When the self-check module is working: it will first check the status of each sensor in the system to detect whether the sensors are in normal working condition; at the same time, the self-check module will test the data transmission link to verify whether the data transmission is stable and reliable.

[0071] In addition, the self-check module will also regularly perform data integrity checks to ensure the continuity and accuracy of monitoring data by comparing historical data with current data;

[0072] Data integrity check and data transmission link test adopt existing technology, and detect whether the system data transmission and sensor are working normally through the self-test module;

[0073] If any abnormal condition is detected during the operation of the self-check module, a first-level warning will be triggered. Abnormal conditions include: data loss is detected during the data transmission link test, and historical data is detected to be inconsistent with current data during data integrity verification;

[0074] The self-check module regularly checks the components inside the system, which can detect potential faults in time and easily reduce the risk of monitoring interruption caused by equipment failure. The design of the self-check module fully considers the ease of use. The self-check process can be started with simple settings without complicated operations, which improves the maintenance efficiency of the system.

[0075] In summary, this scheme realizes real-time monitoring and intelligent early warning of pipeline status through optical fiber sensing technology, obtains a basalt fiber pipeline with real-time monitoring, efficient maintenance and intelligent early warning functions, and improves the safety and reliability of the pipeline.

[0076] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A basalt fiber intelligent pipeline based on optical fiber sensing, comprising a structural layer (1), wherein an inner pipe body is connected to the structural layer (1), characterized in that: The structural layer (1) is sleeved with an outer protective layer (2); a plurality of threading grooves are provided on the inner wall of the outer protective layer (2), optical fiber sensing lines (3) are installed in the threading grooves, and a temperature sensor and a vibration sensor are installed on the optical fiber sensing line (3); pressure monitoring rings (4) matching the optical fiber sensing line (3) are installed at both ends of the structural layer (1), and a monitoring unit matching the pressure monitoring ring (4) is embedded and installed, the monitoring unit includes a plurality of evenly distributed grating sensors, and the monitoring unit is used to detect the sealing performance of the pressure monitoring ring (4); A main docking ring (5) and a secondary docking ring (6) are respectively installed on the pressure monitoring rings (4) at both ends of the structural layer (1); the main docking ring (5) comprises a main ring body (51), an end surface of the main ring body (51) is provided with a mounting groove, an electric heating ring (52) is installed at the bottom end of the mounting groove, a heat expansion ring (53) is slidably connected in the mounting groove, and the heat expansion ring (53) expands towards the opening direction of the mounting groove after being heated; the main docking ring (5) is used for normal leakage self-repair; The auxiliary docking ring (6) is used for auxiliary sealing of normal leakage self-repair, and a piston docking ring (62) opposite to the thermal expansion ring (53) is arranged in the auxiliary docking ring (6).

2. The basalt fiber intelligent pipeline based on optical fiber sensing according to claim 1 is characterized by: The auxiliary docking ring (6) comprises an auxiliary ring body (61), the end surface of the auxiliary ring body (61) is provided with a sealing groove opposite to the mounting groove, the piston docking ring (62) is slidably connected in the sealing groove, a pressure sensor is mounted on the piston docking ring (62), and a gas pipe communicating with the sealing groove is provided at the side end of the auxiliary ring body (61), and after the sealing groove is inflated through the gas pipe, the piston docking ring (62) moves in the direction of the thermal expansion ring (53).

3. The basalt fiber intelligent pipeline based on optical fiber sensing according to claim 1 is characterized by: A distribution terminal (7) is arranged outside the pressure monitoring ring (4), a power supply unit and a communication unit are arranged inside the distribution terminal (7), and an inflation device for air pipe air supply is installed inside the distribution terminal (7).

4. The basalt fiber intelligent pipeline based on optical fiber sensing according to claim 1 is characterized by: The structural layer (1) is a basalt fiber braided layer, and a plurality of end-helical-wound FBG optical fibers are embedded in the basalt fiber braided layer. A plurality of wiring nodes electrically connected to the FBG optical fibers are arranged on the outer surface of the structural layer (1), and the outer protective layer (2) is electrically connected to the wiring nodes.

5. The basalt fiber intelligent pipeline based on optical fiber sensing according to claim 1 is characterized by: The outer layer of the outer protective layer (2) is coated with a corrosion-resistant coating, and the inner wall of the outer protective layer (2) between two adjacent threading grooves is paved with a heat-conducting layer.

6. The basalt fiber intelligent pipeline based on optical fiber sensing according to claim 1 is characterized by: A sealing gasket is provided between the pair of pressure monitoring rings (4), and the monitoring unit detects whether the compression deformation of the sealing gasket is uniform through the grating wavelength offset.

7. A basalt fiber intelligent pipeline based on optical fiber sensing according to any one of claims 1 to 6, characterized in that: It also includes an auxiliary monitoring system, which includes a data processing module, an early warning module, a data acquisition module, a control module and a self-checking module; The data acquisition module is used to collect monitoring data, the monitoring data including monitoring data collected by the outer protective layer (2) and the pressure monitoring ring (4); The data processing module is used to process and analyze monitoring data, and determine the pipeline status by analyzing the monitoring data; The early warning module is used to execute a preset early warning plan according to the pipeline status; The control module is used for power distribution and controlling the operation of the main docking ring (5) and the distribution terminal (7).

8. The basalt fiber intelligent pipeline based on optical fiber sensing according to claim 7 is characterized by: The warning module is provided with a three-level warning scheme. In the case of a first-level warning, the system records and generates an inspection work order, and sends the inspection work order to a preset contact person. When there is monitoring data exceeding the set value range, a first-level warning is triggered; In the case of a Level 2 warning, the pipeline pressure is automatically reduced and an alarm is pushed to the preset contact. When multiple types of monitoring data are combined and abnormal, a Level 2 warning is triggered; When the third-level warning is triggered, the designated valve is closed, and the main docking ring (5) is started to perform self-repair and notify the preset contact person. When any type of monitoring data is greater than the maximum set threshold, the third-level warning is triggered.

9. The basalt fiber intelligent pipeline based on optical fiber sensing according to claim 7 is characterized by: The auxiliary monitoring system also includes a self-check module, which is used for system health detection and data integrity verification. When the self-check module is working: it will first check the status of each sensor in the system to detect whether the sensors are in normal working condition; at the same time, the self-check module will test the data transmission link to verify whether the data transmission is stable and reliable.

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