Distributed Optical Fiber Pipeline Monitoring System

Abstract

The present application provides a distributed optical fiber pipeline monitoring system, which belongs to the field of pipeline monitoring. The distributed optical fiber pipeline monitoring system includes: a monitoring server with a signal receiving unit, a detection optical fiber arranged along the pipeline and suitable for detecting vibration or temperature change of the pipeline, and an underground base station; the underground base station includes a detection unit and a wireless communication unit, an embedded tube, a mounting frame and a top cover, the detection unit and the wireless communication unit are respectively installed on two side frames and installed in the embedded tube through the mounting frame; after the lower cone is inserted into the lower cone groove, the assembled side frames are propped open so that the mounting frame has a tendency to jump upward through the elastic hoop, the detection unit and the wireless communication unit are installed in the underground embedded tube through the mounting frame and closed through the top cover, and are not easily affected by weather and the outside world; and after opening the top cover, the mounting frame jumps out through the elastic force of the elastic hoop, which is convenient for pulling out the mounting frame and inspecting the detection unit and the wireless communication unit.

Description

Technical Field

[0001] This application belongs to the technical field of pipeline monitoring, and more specifically, relates to a distributed optical fiber pipeline monitoring system. Background Art

[0002] Distributed optical fiber detection technology is a real-time, on-line, multi-point temperature sensing technology developed in recent years, which can be used to measure temperature and vibration in real time. In a distributed optical fiber temperature sensing system, the optical fiber is both a sensor and a signal transmission channel. The system uses the temperature and vibration in the space where the optical fiber is located to investigate the backward scattering detection signal in the optical fiber, and then the temperature information is displayed in real time through signal conditioning, acquisition and processing. In terms of time, using the transmission speed of light waves in the optical fiber and the time difference of the backward light echo, combined with the OTDR technology to accurately locate the measured points. The detection optical fiber in the distributed optical fiber temperature sensing system is non-electric, resistant to radio frequency and electromagnetic interference, fire-proof, explosion-proof, corrosion-resistant, high-voltage and strong electromagnetic field-resistant, and ionizing radiation-resistant, and can operate safely in a harmful environment, and has special advantages in many harsh environments such as high temperature and high heat. In recent years, it has been widely used in the fire and vibration monitoring of pipelines and other facilities.

[0003] For large pipe networks, it is often necessary to lay multiple optical fibers along the branches of the pipeline, and then send the signals in each optical fiber to the server through the base station for real-time monitoring. Since it is necessary to monitor all day long, this requires the base station to operate stably for a long time; and most of the current base stations are set outdoors and are easily affected by the weather and the external environment, and the operation stability is poor. Summary of the Invention

[0004] In view of this, the embodiments of this application provide a distributed optical fiber pipeline monitoring system to solve the technical problem that the base station in the prior art is easily affected by the weather and the external environment and has poor operation stability.

[0005] To achieve the above object, the technical solution adopted in this application is to provide a distributed optical fiber pipeline monitoring system, including

[0006] A monitoring server with a signal receiving unit, a detection optical fiber arranged along the pipeline and adapted to detect the vibration or temperature change of the pipeline, and an underground base station;

[0007] The underground base station includes:

[0008] A detection unit and a wireless communication unit, the wireless communication unit is communicatively connected with the signal receiving unit, and the detection unit detects the detection signal obtained by the detection optical fiber and sends the detection signal to the monitoring server through the wireless communication unit;

[0009] The embedded tube is vertically buried underground, with an upper end open and a lower end closed, and a lower cone is provided in the lower end of the embedded tube; and

[0010] The mounting frame comprises at least two side frames, wherein an upper half groove is provided on the inner side of the upper end of each side frame, and a lower half groove is provided on the inner side of the lower end of each side frame, and each side frame is parallel to each other and is assembled along the circumference and then tightened by an elastic hoop, and the upper half groove of each side frame is assembled into an upper conical groove, and the lower half groove is assembled into a lower conical groove; the detection unit and the wireless communication unit are respectively mounted on the two side frames and are installed in the embedded tube through the mounting frame;

[0011] A top cover, adapted to close the upper end opening of the embedded tube, provided with an antenna module extending out of the ground, through which the wireless communication unit sends signals, and an upper cone is also provided on the inner side of the top cover;

[0012] The mounting frame is inserted into the embedded tube from the upper opening, the top cover closes the upper opening of the embedded tube, the lower cone is inserted into the lower cone groove, and the upper cone is inserted into the upper cone groove, so that the mounting frame is clamped and fixed; after the lower cone is inserted into the lower cone groove, the assembled side frames are spread open, so that the mounting frame has a tendency to jump out upward through the elastic hoop.

[0013] In some embodiments, the lower cone has the same taper as the lower cone groove, and the height of the lower cone is greater than the depth of the lower cone groove, so that the lower cone can prop apart the assembled side frames.

[0014] In some embodiments, the lower conical groove is a pyramidal groove, and the lower half groove of each side frame has a side edge; the lower cone is a pyramid, and the side edges of the lower cone match the side edges of the lower conical groove.

[0015] In some embodiments, the upper conical groove is a pyramidal groove, and the upper half groove of each side frame has a side edge; the upper cone is a pyramid, and the side edges of the upper cone and the side edges of the lower cone are opposite to each other; the side edges of the upper conical groove and the side edges of the lower conical groove are opposite to each other;

[0016] The upper cone has the same taper as the upper cone groove, and the height of the upper cone is greater than the depth of the upper cone groove, so that after the upper cone is inserted into the upper cone groove, the assembled side frames are propped open.

[0017] In some embodiments, the number of the side frames is three, the lower cone is a hexagonal pyramid and the lower cone groove is a hexagonal pyramid groove, and the upper cone is a hexagonal pyramid and the upper cone groove is a hexagonal pyramid groove.

[0018] In some embodiments, the outer wall of the embedded tube is provided with a plurality of heat dissipation fins, and the inner wall is provided with a heat transfer platform which is thermally connected to the heat dissipation fins;

[0019] The detection unit has a heat dissipation surface located outside the side frame, and after the side frame is expanded, the heat dissipation surface is attached to the heat transfer platform; and / or, the wireless communication unit has a heat dissipation surface located outside the side frame, and after the side frame is expanded, the heat dissipation surface is attached to the heat transfer platform.

[0020] In some embodiments, a plurality of the heat dissipation fins surround the outer periphery of the embedded cylinder and are arranged radially, and each of the heat dissipation fins extends along the axial direction of the embedded cylinder.

[0021] In some embodiments, the upper cone is arranged inside the top cover through a downward pressing elastic structure, and the downward pressure of the downward pressing elastic structure causes the upper cone and the lower cone to expand each of the side frames, and elastically presses the heat dissipation surface outside the side frame against the heat transfer platform.

[0022] In some embodiments, the downward pressing elastic structure includes:

[0023] A sliding hole is arranged inside the top cover along the axial direction of the embedded cylinder;

[0024] A sliding rod is coaxially arranged at the rear end of the upper cone and is slidably matched with the sliding hole;

[0025] A limiting ring is arranged at the opening of the sliding hole to prevent the sliding rod from coming out; and

[0026] A spring is arranged in the sliding hole to push the sliding rod outwards.

[0027] In some embodiments, an upper clamping groove is arranged on the outer side of the upper end of the side frame. After each side frame is assembled, each of the upper clamping grooves is assembled into an annular upper assembled groove, and the elastic hoop is embedded in the upper assembled groove;

[0028] A lower clamping groove is arranged on the outer side of the lower end of the side frame. After each side frame is assembled, each of the lower clamping grooves is assembled into an annular lower assembled groove, and the elastic hoop is embedded in the lower assembled groove.

[0029] The beneficial effects of the distributed optical fiber pipeline monitoring system provided by the embodiments of the present application are as follows: Compared with the prior art, in the distributed optical fiber pipeline monitoring system of the embodiments of the present application, the detection unit and the wireless communication unit are installed in an underground embedded cylinder through a mounting frame and are closed by a top cover, and are not easily affected by the weather and the outside world; moreover, after the top cover is opened, the mounting frame jumps out by the elastic force of the elastic hoop, which is convenient for pulling out the mounting frame to repair the detection unit and the wireless communication unit. Description of the Drawings

[0030] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 Schematic structural diagram of the distributed optical fiber pipeline monitoring system provided by the embodiment of the present application;

[0032] Figure 2 Schematic structural diagram of the embedded cylinder and the top cover of the distributed optical fiber pipeline monitoring system provided by the embodiment of the present application;

[0033] Figure 3 For Figure 2 The enlarged view of part A in

[0034] Figure 4 For Figure 2 The top view of the embedded cylinder in

[0035] Figure 5 Schematic structural diagram of the mounting rack of the distributed optical fiber pipeline monitoring system provided by the embodiment of the present application;

[0036] Figure 6 For Figure 5 The top view of the mounting rack in

[0037] Figure 7 For Figure 5 The cross-sectional view of the mounting rack in

[0038] Among them, the reference numerals in the drawings:

[0039] 1 - Monitoring server; 11 - Signal receiving unit; 2 - Detection optical fiber; 3 - Underground base station; 31 - Detection unit; 32 - Wireless communication unit; 33 - Embedded cylinder; 331 - Lower cone; 332 - Heat dissipation fins; 333 - Heat transfer platform; 34 - Side frame; 341 - Upper cone groove; 342 - Elastic hoop; 35 - Top cover; 351 - Antenna module; 352 - Upper cone; 353 - Slide hole; 354 - Slide rod; 355 - Limit ring; 356 - Spring; 36 - Heat dissipation surface. Detailed implementation manners

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the following further details the present application in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0042] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0043] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality of" and "several" is two or more, unless otherwise specifically defined.

[0044] Please refer to Figures 1 to 7 together. Now, a distributed optical fiber pipeline monitoring system provided by an embodiment of the present application will be described. A distributed optical fiber pipeline monitoring system includes:

[0045] A monitoring server 1 having a signal receiving unit 11, a detection optical fiber 2 disposed along the pipeline and adapted to detect vibrations or temperature changes of the pipeline, and an underground base station 3;

[0046] The underground base station 3 includes:

[0047] A detection unit 31 and a wireless communication unit 32. The wireless communication unit 32 is communicatively connected to the signal receiving unit 11. The detection unit 31 detects the detection signal obtained by the detection optical fiber 2 and sends the detection signal to the monitoring server 1 through the wireless communication unit 32;

[0048] A pre-buried cylinder 33, vertically buried underground, with an open upper end and a closed lower end. A lower cone 331 is provided inside the lower end of the pre-buried cylinder 33; and

[0049] The mounting frame includes at least two side frames 34. The inner side of the upper end of each side frame 34 is provided with an upper half groove, and the inner side of the lower end is provided with a lower half groove. The side frames 34 are parallel to each other and are assembled along the circumference and then tightened by an elastic hoop 342. The upper half grooves of each side frame 34 are assembled into an upper conical groove 341, and the lower half grooves are assembled into a lower conical groove. The detection unit 31 and the wireless communication unit 32 are respectively mounted on the two side frames 34 and installed in the embedded tube 33 through the mounting frame.

[0050] The top cover 35 is suitable for closing the upper end opening of the embedded tube 33, and is provided with an antenna module 351 extending out of the ground. The wireless communication unit 32 sends signals through the antenna module 351. An upper cone 352 is also provided inside the top cover 35;

[0051] The mounting frame is inserted into the embedded tube 33 from the upper opening, the top cover 35 closes the upper opening of the embedded tube 33, the lower cone 331 is inserted into the lower cone groove, and the upper cone 352 is inserted into the upper cone groove 341, so that the mounting frame is clamped and fixed; after the lower cone 331 is inserted into the lower cone groove, the assembled side frames 34 are spread open, so that the mounting frame has a tendency to jump upward through the elastic hoop 342.

[0052] Compared with the prior art, in the distributed optical fiber pipeline monitoring system of the embodiment of the present application, the detection unit 31 and the wireless communication unit 32 are installed in the underground pre-buried tube 33 through the mounting frame and are closed by the top cover 35, which is not easily affected by the weather and the outside world; and after opening the top cover 35, the mounting frame jumps out by the elastic force of the elastic hoop 342, which makes it convenient to pull out the mounting frame and inspect the detection unit 31 and the wireless communication unit 32.

[0053] In this embodiment, the detection optical fiber 2 is arranged along the pipeline to detect the vibration or temperature change of the pipeline. The detection optical fiber 2 penetrates into the embedded tube 33 and is connected to the detection unit 31. The detection unit 31 establishes a wireless communication connection with the monitoring server 1 through the wireless communication unit 32, and sends the detection signal to the monitoring server 1 in real time. The detection optical fiber 2, the detection unit 31 and the monitoring server 1 can use the same equipment as the distributed optical fiber detection system on the market, and the signal receiving unit 11 and the wireless communication unit 32 can be connected through a 3G, 4G or 5G network.

[0054] The embedded tube 33 is buried vertically underground to avoid weather interference and external impact, ensuring the stable operation of the internal detection unit 31 and the wireless communication unit 32. The upper end of the embedded tube 33 is closed by a top cover 35, which is exposed to the ground or shallowly buried under the ground, so that the top cover 35 can be opened for maintenance. The antenna module 351 is set on the top cover 35 to facilitate signal transmission.

[0055] The detection unit 31 and the wireless communication unit 32 are respectively installed on the side frame 34. Then, the respective side frames 34 are assembled, and then they are tightly fastened in the embedded cylinder 33 with an elastic hoop 342. The top cover 35 is closed at the opening of the embedded cylinder 33 by bolts or latches. When the top cover 35 is closed, the mounting frame is pressed down, so that the mounting frame is expanded by the upper cone 352 and the lower cone 331. When the top cover 35 is opened, the elastic hoop 342 will contract the expanded side frame 34, so that the mounting frame jumps upward.

[0056] Please refer to Figures 2 to 6 , as a specific implementation of the distributed optical fiber pipeline monitoring system provided by this application, the taper of the lower cone 331 is the same as that of the lower cone groove, and the height of the lower cone 331 is greater than the depth of the lower cone groove, so that the lower cone 331 expands the assembled side frames 34.

[0057] Please refer to Figures 2 to 6 , as a specific implementation of the distributed optical fiber pipeline monitoring system provided by this application, the lower cone groove is a pyramid groove, and each lower half groove of the side frame 34 has a side edge; the lower cone 331 is a pyramid, and the side edge of the lower cone 331 matches the side edge of the lower cone groove.

[0058] In this embodiment, when the side frame 34 is expanded by the lower cone 331, the side edge on the lower half groove of the side frame 34 can guide the expanded side frame 34 to prevent the side frame 34 from being misaligned when it is expanded.

[0059] Please refer to Figures 2 to 6 , as a specific implementation of the distributed optical fiber pipeline monitoring system provided by this application, the upper cone groove 341 is a pyramid groove, and each upper half groove of the side frame 34 has a side edge; the upper cone 352 is a pyramid, and the side edge of the upper cone 352 and the side edge of the lower cone 331 are in one-to-one correspondence; the side edge of the upper cone groove 341 and the side edge of the lower cone groove are in one-to-one correspondence;

[0060] The taper of the upper cone 352 is the same as that of the upper cone groove 341, and the height of the upper cone 352 is greater than the depth of the upper cone groove 341, so that after the upper cone 352 is inserted into the upper cone groove 341, the assembled side frames 34 are expanded.

[0061] In this embodiment, when the side frame 34 is expanded by the upper cone 352, the side edge on the upper half groove of the side frame 34 can guide the expanded side frame 34 to prevent the side frame 34 from being misaligned when it is expanded.

[0062] Please refer to Figures 2 to 6 , as a specific implementation of the distributed optical fiber pipeline monitoring system provided by this application, the number of side frames 34 is three, the lower cone 331 is a hexagonal pyramid and the lower cone groove is a hexagonal pyramid groove, the upper cone 352 is a hexagonal pyramid and the upper cone groove 341 is a hexagonal pyramid groove.

[0063] Please refer toFigure 2 , 4 , 5, and 7. As a specific embodiment of the distributed optical fiber pipeline monitoring system provided in this application, a plurality of heat dissipation fins 332 are provided on the outer wall of the embedded cylinder 33, and a heat transfer platform 333 thermally connected to the heat dissipation fins 332 is provided on the inner wall;

[0064] The detection unit 31 has a heat dissipation surface 36 located outside the side frame 34, and after the side frame 34 is expanded, the heat dissipation surface 36 is attached to the heat transfer platform 333; and / or, the wireless communication unit 32 has a heat dissipation surface 36 located outside the side frame 34, and after the side frame 34 is expanded, the heat dissipation surface 36 is attached to the heat transfer platform 333.

[0065] In this embodiment, when the side frame 34 is expanded and the heat dissipation surface 36 is attached to the heat transfer platform 333, the heat of the detection unit 31 or the wireless communication unit 32 can be transferred to the heat dissipation fins 332 through the heat transfer platform 333 for heat dissipation, reducing the operating temperature and improving the operating stability.

[0066] In specific implementation, the heat dissipation fins of the detection unit 31 are located outside the side frame 34 to form the heat dissipation surface 36, or the detection unit 31 is provided with a heat pipe extending to the outside of the side frame 34 to form the heat dissipation surface 36. The heat dissipation fins 332 and the heat transfer platform 333 on the embedded cylinder 33 are integrally formed by casting.

[0067] Please refer to Figure 2 and 4 , as a specific embodiment of the distributed optical fiber pipeline monitoring system provided in this application, a plurality of heat dissipation fins 332 surround the outer periphery of the embedded cylinder 33 and are arranged radially, and each heat dissipation fin 332 extends along the axial direction of the embedded cylinder 33.

[0068] In this embodiment, when the embedded cylinder 33 is vertically buried underground, the backfill soil is more likely to enter the gaps between the heat dissipation fins 332, making the embedded cylinder 33 more stable.

[0069] Please refer to Figure 2 and 3 , as a specific embodiment of the distributed optical fiber pipeline monitoring system provided in this application, the upper cone 352 is provided inside the top cover 35 through a downward pressing elastic structure, and the downward pressure of the downward pressing elastic structure causes the upper cone 352 and the lower cone 331 to expand each side frame 34 and elastically press the heat dissipation surface 36 outside the side frame 34 against the heat transfer platform 333.

[0070] In this embodiment, the heat dissipation surface 36 is elastically pressed against the heat transfer platform 333, which can prevent damage caused by rigid contact between the two.

[0071] Please refer to Figure 2 and 3, as a specific implementation of the distributed optical fiber pipeline monitoring system provided by this application, the downward pressing elastic structure includes:

[0072] A sliding hole 353 is arranged along the axial direction of the embedded cylinder 33 inside the top cover 35;

[0073] A sliding rod 354 is coaxially arranged at the rear end of the upper cone 352 and is in sliding fit with the sliding hole 353;

[0074] A limiting ring 355 is arranged at the opening of the sliding hole 353 to prevent the sliding rod 354 from coming out; and

[0075] A spring 356 is arranged inside the sliding hole 353 to push the sliding rod 354 outwards.

[0076] In specific implementation, the sliding hole 353 is a square hole and the sliding rod 354 is a square rod to prevent the upper cone 352 from rotating and enable the upper cone 352 to better align with the upper cone groove 341. Of course, the sliding hole 353 can also be a circular hole, and the corresponding sliding rod 354 can also be a round rod, so that the angle of the upper cone 352 can be adjusted freely.

[0077] Please refer to Figures 1 to 7 , as a specific implementation of the distributed optical fiber pipeline monitoring system provided by this application, an upper card slot is arranged on the outer side of the upper end of the side frame 34. After the side frames 34 are assembled, the upper card slots are assembled into an annular upper assembled slot, and the elastic hoop 342 is embedded in the upper assembled slot;

[0078] A lower card slot is arranged on the outer side of the lower end of the side frame 34. After the side frames 34 are assembled, the lower card slots are assembled into an annular lower assembled slot, and the elastic hoop 342 is embedded in the lower assembled slot.

[0079] In this embodiment, the two elastic hoops 342 respectively tighten the upper end and the lower end of the side frame 34, which is more firm; and the two elastic hoops 342 are respectively embedded in the upper assembled slot and the lower assembled slot to prevent displacement. The elastic hoop 342 can be made of a rubber ring or an annular spring.

[0080] The above are only the preferred embodiments of this application and are not used to limit this application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A distributed optical fiber pipeline monitoring system, characterized in that, include: A monitoring server having a signal receiving unit, a detection optical fiber arranged along the pipeline and suitable for detecting vibration or temperature change of the pipeline, and an underground base station; The underground base station comprises: A detection unit and a wireless communication unit, wherein the wireless communication unit is in communication connection with the signal receiving unit, and the detection unit detects a detection signal obtained by the detection optical fiber and sends the detection signal to the monitoring server through the wireless communication unit; The embedded tube is vertically buried underground, with an upper end open and a lower end closed, and a lower cone is provided in the lower end of the embedded tube; and The mounting frame comprises at least two side frames, wherein an upper half groove is provided on the inner side of the upper end of each side frame, and a lower half groove is provided on the inner side of the lower end of each side frame, and each side frame is parallel to each other and is assembled along the circumference and then tightened by an elastic hoop, and the upper half groove of each side frame is assembled into an upper conical groove, and the lower half groove is assembled into a lower conical groove; the detection unit and the wireless communication unit are respectively mounted on the two side frames and are installed in the embedded tube through the mounting frame; A top cover, adapted to close the upper end opening of the embedded tube, provided with an antenna module extending out of the ground, through which the wireless communication unit sends signals, and an upper cone is also provided on the inner side of the top cover; The mounting frame is inserted into the embedded tube from the upper opening, the top cover closes the upper opening of the embedded tube, the lower cone is inserted into the lower cone groove, and the upper cone is inserted into the upper cone groove, so that the mounting frame is clamped and fixed; after the lower cone is inserted into the lower cone groove, the assembled side frames are spread open, so that the mounting frame has a tendency to jump out upward through the elastic hoop.

2. The distributed optical fiber pipeline monitoring system according to claim 1, characterized in that, The lower cone has the same taper as the lower cone groove, and the height of the lower cone is greater than the depth of the lower cone groove, so that the lower cone can prop open the assembled side frames.

3. The distributed optical fiber pipeline monitoring system according to claim 2, wherein The lower cone groove is a pyramid groove, and the lower half groove of each side frame has a side edge; the lower cone is a pyramid, and the side edges of the lower cone match the side edges of the lower cone groove.

4. The distributed optical fiber pipeline monitoring system according to claim 3, wherein The upper conical groove is a pyramidal groove, and the upper half groove of each side frame has a side edge; the upper cone is a pyramid, and the side edges of the upper cone and the side edges of the lower cone are opposite to each other; the side edges of the upper conical groove and the side edges of the lower conical groove are opposite to each other; The upper cone has the same taper as the upper cone groove, and the height of the upper cone is greater than the depth of the upper cone groove, so that after the upper cone is inserted into the upper cone groove, the assembled side frames are propped open.

5. The distributed optical fiber pipeline monitoring system according to claim 4, characterized in that, The number of the side frames is three, the lower cone is a hexagonal pyramid and the lower cone groove is a hexagonal pyramid groove, the upper cone is a hexagonal pyramid and the upper cone groove is a hexagonal pyramid groove.

6. The distributed optical fiber pipeline monitoring system according to claim 1, characterized in that, The outer wall of the embedded tube is provided with a plurality of heat dissipation fins, and the inner wall is provided with a heat transfer platform which is thermally connected to the heat dissipation fins; The detection unit has a heat dissipation surface located outside the side frame, and the heat dissipation surface is in contact with the heat transfer platform after the side frame is opened; and / or the wireless communication unit has a heat dissipation surface located outside the side frame, and the heat dissipation surface is in contact with the heat transfer platform after the side frame is opened.

7. The distributed optical fiber pipeline monitoring system according to claim 6, wherein, A plurality of heat dissipation fins surround the outer circumference of the embedded tube and are arranged radially, and each of the heat dissipation fins extends axially along the embedded tube.

8. The distributed optical fiber pipeline monitoring system according to claim 6, wherein The upper cone is arranged on the inner side of the top cover through a downward pressure elastic structure. The downward pressure of the downward pressure elastic structure causes the upper cone and the lower cone to open each of the side frames and elastically press the heat dissipation surface outside the side frame against the heat transfer platform.

9. The distributed optical fiber pipeline monitoring system according to claim 8, wherein, The downward pressure elastic structure comprises: A sliding hole is arranged on the inner side of the top cover along the axial direction of the embedded cylinder; A slide rod, coaxially arranged at the rear end of the upper cone and slidingly engaged with the slide hole; a limiting ring, disposed at the opening of the sliding hole, to prevent the sliding rod from falling out; and A spring is arranged in the sliding hole and pushes the sliding rod outward.

10. The distributed optical fiber pipeline monitoring system according to claim 1, characterized in that, An upper groove is provided on the outer side of the upper end of the side frame. After the side frames are assembled, the upper grooves are assembled into an annular upper assembly groove, and the elastic hoop is embedded in the upper assembly groove. A lower clamping groove is arranged on the outer side of the lower end of the side frame. After the side frames are assembled, the lower clamping grooves are assembled into an annular lower assembly groove, and the elastic hoop is embedded in the lower assembly groove.

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