Long distance linear multi-source device all-fiber fast integration system

Abstract

The application discloses a long-distance linear multi-source device all-fiber rapid integration system and relates to the technical field of fiber manufacturing.The application customizes optical fiber lines with different lengths according to the on-site fiber sensor layout requirement, so that the optical fiber lines are segmented and laid in optical cables, and then the drawing and fusion method is adopted, so that the wiring of a plurality of optical fiber sensors can be integrated in the same optical cable, which is beneficial to eliminating redundant wiring, achieving the technical effect of one-line penetration and multi-source access, greatly improving the standardization and construction efficiency of the integration system during the monitoring and wiring of the optical fiber sensor, and simultaneously, through the cooperation of the line splitter, the one-to-many connection device and the single-point connection device, the full-process and differential sealing protection from the main trunk to the branch can be provided for each optical fiber connection point, the overall reliability can be ensured, the miniaturization and cost optimization of the device can be realized, and the efficient applicability of the integration system to complex working conditions is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of optical fiber manufacturing technology, and in particular to a long-distance linear multi-source device all-fiber rapid integration system. Background Technology

[0002] Since their inception, fiber optic sensors have been widely used in geotechnical engineering monitoring due to their advantages such as resistance to electromagnetic interference, corrosion resistance, electrical insulation, high sensitivity, low cost, and good compatibility with ordinary optical fibers. Based on the sensitivity of wavelength to stress, strain, and temperature changes, fiber optic sensors have become an important means of measuring temperature, stress, and strain. To ensure the stable and efficient operation of different types of fiber optic sensors in the same system, it is necessary to integrate and connect them.

[0003] Currently, fiber optic sensors have formed a mature technical system for safety monitoring in various geotechnical engineering projects, including island and reef engineering, tunnel engineering, pipeline engineering, bridge engineering, and mining engineering. However, despite their superior sensing performance, the integration technology of fiber optic sensors and acquisition equipment still has significant shortcomings. Existing methods mainly rely on simple series and fusion splicing connections between sensors. Although this method is easy to operate, it lacks effective protection. In complex working conditions or long-term monitoring, the splice points are prone to moisture and damage, leading to increased optical loss or even disconnection, resulting in the loss of monitoring data. In addition, this integration method is relatively simple, requiring each sensor to be independently fused to the communication optical cable. This results in an excessive number of independent cables in the project, making it difficult to achieve integration and de-modulation. This not only leads to low splicing efficiency but also restricts the rapid deployment and reliable operation of the system in complex engineering environments, affecting the overall monitoring effect.

[0004] To address these issues, a long-distance linear multi-source device all-fiber rapid integration system is proposed to solve some of the problems existing in the prior art. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as cumbersome integration and connection of different types of fiber optic sensors in the same monitoring system, which can easily affect the stability and convenience of use and maintenance. The invention proposes a long-distance linear multi-source device all-fiber rapid integration system.

[0006] To address the problems existing in the prior art, the present invention adopts the following technical solution: A long-distance linear multi-source device all-fiber rapid integration system includes an optical cable, a multi-core multi-layer protection splice, a splitter, a one-to-many splice, a single-point splice, and an optical fiber sensor. The optical cable includes multiple optical fibers of different lengths. The multi-core multi-layer protection splice is installed at the front end of the optical cable. Multiple splitters are flexibly installed on the optical cable at positions corresponding to the ends of the optical fibers as needed. One end of the one-to-many splice has a lead-in wire, which is fused to the corresponding optical fiber within the splitter. The other end of the one-to-many splice has multiple lead-out wires fused to the lead-in wire. The fusion points of the lead-in wire and the lead-out wires are located within the one-to-many splice, and the lead-out wires are connected to the optical fiber sensor through a single-point splice.

[0007] Preferably, the optical cable includes a reinforcing rib, multiple optical fibers are distributed around the outside of the reinforcing rib, the front ends of the multiple optical fibers are located at the front end of the reinforcing rib, the ends of the multiple optical fibers are intermittently distributed on the outside of the reinforcing rib, each optical fiber is wrapped with a loose tube, the outside of the multiple optical fibers is wrapped with a water-blocking yarn, and the outside of the water-blocking yarn is wrapped with a steel wire stranded layer and an outer sheath in sequence.

[0008] Preferably, the outer surface of the outer sheath is marked with positioning marks corresponding to the ends of the multiple optical fibers, and a barcode is affixed to the outer surface of the outer sheath.

[0009] Preferably, the ends of all fiber optic cables except the longest fiber optic cable are provided with metal rings corresponding to the positioning marks, and the metal rings are collectively sleeved on the outside of the remaining multiple fiber optic cables. The metal rings are located on the inside of the water-blocking yarn. The reinforcing ribs are provided with ring grooves corresponding to the metal rings. The multiple fiber optic cables converge into the ring grooves under the convergence of the metal rings, and the outer surface of the metal rings is flush with the inner surface of the water-blocking yarn.

[0010] Preferably, the ends of all optical fibers except the longest one are extended with filler ribs, which are located inside the water-blocking yarn and the metal ring and extend to the end of the reinforcing rib.

[0011] Preferably, the splitter includes a second housing, which is symmetrically opened. Both ends of the second housing have first through holes adapted to the outer dimensions of the optical cable. One end of the second housing has a second through hole adapted to the outer dimensions of the lead wire. A second sealing tube is installed inside the second housing. The splice point of the optical fiber and the lead wire is located inside the second sealing tube. Second plugs are fastened to both ends of the second sealing tube. A second clamp for fastening the optical cable and the second sealing tube is fixedly installed inside the second housing.

[0012] Preferably, the single-point splicing device includes a double-layer protective tube, and both ends of the double-layer protective tube are equipped with sealed joints. The lead wire is directly fused to the lead wire of the fiber optic sensor, or fused to the lead wire of the fiber optic sensor through a quick-connect device, and the fusion point is located inside the double-layer protective tube.

[0013] Preferably, the quick-connect device includes a flange quick-connect male connector or an aviation quick-connect male connector fused to a sealing joint, and a flange quick-connect female connector or an aviation quick-connect female connector fused to the lead wire of the fiber optic sensor. The flange quick-connect male connector and the flange quick-connect female connector are mating and compatible, and the aviation quick-connect male connector and the aviation quick-connect female connector are mating and compatible.

[0014] Preferably, the integrated system is equipped with wire strippers for stripping and removing optical fibers from optical cables. The wire strippers include a clamp body, and symmetrically arranged semi-cylinders are fixedly installed on the jaws of the clamp body. The inner diameter of the semi-cylinders is adapted to the outer diameter of the optical cable. Two symmetrically arranged straight blades are fixedly installed on the inner side of one of the semi-cylinders, and the straight blades point to the center of the semi-cylinder. An arc-shaped blade is fixedly connected between the ends of the two straight blades, and the diameter of the arc-shaped blade on the side closer to the center of the semi-cylinder is adapted to the outer diameter of a metal ring. The semi-cylinders, together with the straight blades and the arc-shaped blades, form a stripping cavity. An arc-shaped plate is fixedly connected to the rear ends of the straight blades and the arc-shaped blades.

[0015] Preferably, an integration method for a long-distance linear multi-source device all-fiber rapid integration system is provided. The integration method is applicable to long-distance linear multi-source device all-fiber rapid integration systems and includes the following steps: Step 1: Based on the distribution and installation of the fiber optic sensors used for on-site monitoring, customize fiber optic cables of different lengths in the optical cable; Step 2: Use wire strippers to strip the fiber optic cable at the location where it needs to be stripped and spliced. Pull out the corresponding fiber optic cable from the cut and splice it with the drop wire to achieve the connection between the multi-split device and the fiber optic cable. Step 3: Use a splitter to seal and protect the cuts on the optical cable and the fusion splices between the optical fiber and the drop wire; Step 4: Select a suitable quick-connect device, fuse the lead wire of the flange quick-connect male connector or aviation quick-connect male connector to the lead wire, fuse the lead wire of the flange quick-connect female connector or aviation quick-connect female connector to the lead wire of the fiber optic sensor, and then seal and protect the fusion point with a double-layer protective tube and a sealing joint. Step 5: Lay the stripped and spliced ​​optical cable at the monitoring site, connect the optical cable to the host through a multi-core, multi-layer protective splicing device, and quickly connect multiple fiber optic sensors through a quick-connect device.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, fiber optic cables of different lengths are customized according to the deployment requirements of fiber optic sensors on site, so that the fiber optic cables are laid in segments within the optical cable. Then, the cable is led out and spliced, so that the wiring of many fiber optic sensors can be integrated into the same optical cable. This helps to eliminate redundant wiring and achieves the technical effect of one-line through and multi-source access. This greatly improves the standardization and construction efficiency of the integrated system when the fiber optic sensor monitoring wiring is installed. At the same time, by using splitters, one-to-many splicing devices and single-point splicing devices in combination, each fiber optic splice point can be provided with full-process, differentiated sealing protection from the trunk to the branch. This can ensure overall reliability and achieve miniaturization and cost optimization of the device, effectively improving the high efficiency and applicability of the integrated system to complex working conditions. 2. By setting a metal ring outside the optical fiber inside the optical cable and setting a positioning mark corresponding to the metal ring on the outer sheath, and using a special wire stripper, the target optical fiber can be quickly and accurately opened and extracted. This method can avoid the need to cut the entire cable body in traditional construction, effectively ensuring the structural integrity and mechanical strength of the optical cable body, and can effectively reduce the difficulty of operation for workers when stripping the optical cable, thus greatly improving the efficiency of the integrated system construction. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structural connection of the present invention; Figure 2 This is a schematic diagram of the reinforcing ribs and optical fiber of the present invention; Figure 3 This is a schematic diagram of the internal structure of the optical cable of the present invention; Figure 4 This is a schematic diagram of the internal structure of the multi-core, multi-layer protective splicing device of the present invention; Figure 5 This is a schematic diagram of the internal structure of the splitter of the present invention; Figure 6 This is a perspective view of the wire stripper of the present invention; Figure 7 This is a perspective view of the process of stripping an optical cable using wire strippers according to the present invention. Figure 8 For the present invention Figure 7 Top sectional view of the structure; Figure 9 For the present invention Figure 8 Enlarged view of the structure at point A in the middle; Figure 10 For the present invention Figure 7 Front sectional view of the middle structure; Figure 11 For the present invention Figure 10 Enlarged view of the structure at point B.

[0018] In the picture: 1. Optical cable; 11. Reinforcing rib; 12. Optical fiber; 13. Water-blocking tape; 14. Steel wire stranded layer; 15. Outer sheath; 16. Positioning mark; 17. Metal ring; 18. Ring groove; 19. Filler rib; 2. Multi-core, multi-layer protective splicing device; 21. First housing; 22. Waterproof joint; 23. First clamp; 24. Inner sealing box; 25. Snap ring; 26. First sealing tube; 27. First plug; 28. Limiting post; 3. Splitter; 31. Second housing; 32. First through hole; 33. Second through hole; 34. Second sealing tube; 35. Second plug; 36. Second clamp; 4. One-to-many connection device; 41. Lead-in wire; 42. Lead-out wire; 5. Single-point connection device; 51. Double-layer protective pipe; 52. Sealing joint; 53. Quick-connect device; 531. Flange quick-connect male connector; 532. Flange quick-connect female connector; 533. Aviation quick-connect male connector; 534. Aviation quick-connect female connector; 6. Fiber optic sensor; 7. Wire stripper; 71. Pliers body; 72. Semi-cylinder; 73. Straight blade; 74. Curved blade; 75. Stripping chamber; 76. Curved plate. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Example: This example provides a long-distance linear multi-source device all-fiber rapid integration system. See [link to example]. Figure 1 - Figure 11Specifically, it includes optical cable 1, multi-core multi-layer protection splicing device 2, splitter 3, one-to-many splicing device 4, single-point splicing device 5, and fiber optic sensor 6. Optical cable 1 includes multiple optical fibers 12 of different lengths. The multi-core multi-layer protection splicing device 2 is installed at the front end of optical cable 1. Multiple splitters 3 are flexibly installed on optical cable 1 at positions corresponding to the ends of optical fibers 12 as needed. One end of the one-to-many splicing device 4 has a lead-in wire 41, which is fused to the corresponding optical fiber 12 inside the splitter 3. The other end of the one-to-many splicing device 4 is... There are multiple lead-out wires 42 that are fused to the lead-in wire 41. The fusion point of the lead-in wire 41 and the lead-out wire 42 is located in the one-to-many splicing device 4, and the lead-out wire 42 is connected to the fiber optic sensor 6 through the single-point splicing device 5. This system can be applied to all types of fiber optic sensors 6. The fiber optic cable 12 inside the optical cable 1 is laid out in segments. Different lengths of fiber optic cable 12 can be customized and placed in the loose tube inside the optical cable 1 according to the requirements of the fiber optic cable routing distance on site. The one-to-many splicing device 4 is a pre-fabricated independent sealed unit containing a fiber optic coupler.

[0021] In the specific implementation process, such as Figure 2 and Figure 3 As shown, the optical cable 1 includes a reinforcing rib 11, multiple optical fibers 12 are distributed around the outside of the reinforcing rib 11, the front ends of the multiple optical fibers 12 are located at the front end of the reinforcing rib 11, the ends of the multiple optical fibers 12 are intermittently distributed on the outside of the reinforcing rib 11, each optical fiber 12 is wrapped with a loose tube, the multiple optical fibers 12 are wrapped with a water-blocking yarn 13, and the water-blocking yarn 13 is wrapped with a steel wire stranded layer 14 and an outer sheath 15 in sequence.

[0022] The reinforcing rib 11 is made of 304 stainless steel, which increases strength and corrosion resistance of the optical cable 1. The optical fiber 12 uses bend-insensitive fiber, which eliminates the bending effect of the optical cable 1 during laying and effectively reduces the loss of optical signal during transmission. The loose tube is made of PBT material, which is corrosion-resistant, fatigue-resistant, and highly tough, effectively protecting the internal optical fiber 12 from external influences and corrosion. The water-blocking tape 13 expands when it comes into contact with water, achieving longitudinal water blocking function. At the same time, it can meet the tension requirements when the optical cable 1 is cabled. It expands quickly, has good chemical stability when forming a gel after absorbing water, and is strong, corrosion-resistant, and resistant to fine particles. With good resistance to mold and mildew and good thermal stability, it can effectively protect the internal optical fiber 12 from external influences and corrosion. The steel wire stranded layer 14 is made of 316L stainless steel wire, which can resist corrosion and effectively increase the strength of the optical cable 1. The outer sheath 15 is made of modified HDPE material. The outer sheath 15 made of this material has good chemical properties, with the advantages of cold resistance, heat resistance and chemical stability. Even under the corrosive medium mixed with acid and alkali, it can maintain long-term stability. It also has high rigidity and toughness, and excellent wear resistance and waterproof performance. It can be used in complex environments such as high temperature difference, high salinity, high humidity and high light.

[0023] In the specific implementation process, such as Figure 7 - Figure 9 As shown, the outer surface of the outer sheath 15 is marked with positioning marks 16 corresponding to the ends of multiple optical fiber lines 12. A barcode is affixed to the outer surface of the outer sheath 15. The presence of the positioning marks 16 makes it convenient for staff to accurately locate the ends of the optical fiber lines 12, which helps to improve the convenience and accuracy of the staff when stripping the ends of the optical fiber lines 12, and thus helps to improve the efficiency of the integrated system.

[0024] The above structural design makes each optical fiber 12 an independent transmission channel inside the optical cable 1, and its end position is predetermined. When an optical fiber sensor 6 needs to be connected to a certain monitoring point, the staff does not need to search for the optical fiber from the end of the optical cable 1. They only need to use the positioning mark 16 on the outer sheath 15 to accurately locate the end of the optical fiber 12 closest to the monitoring point, thereby achieving efficient point-to-point access and effectively reducing the coiling loss and wiring complexity of the optical fiber 12.

[0025] In the specific implementation process, such as Figure 3 , Figure 8 and Figure 9As shown, except for the longest optical fiber 12, the ends of all other optical fiber 12 are provided with metal rings 17 corresponding to the positioning mark 16. The metal rings 17 are collectively sleeved on the outside of the remaining multiple optical fiber 12. The metal rings 17 are located inside the water-blocking yarn 13. The reinforcing rib 11 has a ring groove 18 corresponding to the metal ring 17. The multiple optical fiber 12 are gathered into the ring groove 18 under the convergence of the metal rings 17. The outer surface of the metal ring 17 is flush with the inner surface of the water-blocking yarn 13. The presence of the metal rings 17 can effectively protect the optical fiber 12 inside the optical cable 1. When stripping the optical cable 1, the operator can quickly cut into the outside of the end of the optical fiber 12 inside the optical cable 1, which can avoid damage to the optical fiber 12 during the stripping process. This effectively reduces the difficulty of the operator when stripping the optical cable 1, thereby greatly improving the efficiency of the integrated system construction.

[0026] In the specific implementation process, such as Figure 3 , Figure 8 and Figure 9 As shown, except for the longest fiber optic cable 12, the ends of all other fiber optic cables 12 are extended with filler ribs 19. The filler ribs 19 are located inside the water-blocking yarn tape 13 and the metal ring 17, and extend to the end of the reinforcing rib 11. By using the filler ribs 19 to extend at the ends of the fiber optic cables 12, the filler ribs 19 are not directly connected to the fiber optic cables 12. The filler ribs 19 ensure that the internal structure of the optical cable 1 remains full and compact after the convergence point of the metal ring 17, so that the internal support of the subsequent optical cable 1 at the end of the fiber optic cable 12 is stable, avoiding the cavity caused by the termination of the fiber optic cable 12, effectively ensuring the uniformity of the optical cable 1 under longitudinal force, preventing the outside of the optical cable 1 from collapsing due to the termination of some fiber optic cables 12, thereby effectively ensuring the overall structural stability of the optical cable 1 from front to back.

[0027] In the specific implementation process, such as Figure 1 and Figure 4As shown, the multi-core, multi-layer protective splicing device 2 includes a first housing 21, with waterproof connectors 22 fixedly installed at both ends of the first housing 21. A first clamp 23, corresponding to the waterproof connector 22, is fixedly installed inside the first housing 21. An inner sealing box 24 is fixedly installed in the middle of the first housing 21. A retaining spring 25 is fixedly installed inside the inner sealing box 24, and a first sealing tube 26 is held inside the retaining spring 25. First plugs 27 are sealed at both ends of the first sealing tube 26. Limiting posts 28, evenly distributed on both sides of the inner sealing box 24, are fixedly installed inside the first housing 21, and the limiting posts 28 are corresponding to the first sealing tube 26. The multi-core, multi-layer protective splicing device 2 has three layers of protection: the outer first housing 21, the inner inner sealing box 24, and the innermost first sealing tube 26. All three layers of protection are waterproof and corrosion resistant. Sealing rubber is provided at each connection point, which can greatly protect the internally spliced ​​optical fibers, reduce the loss of optical fiber transmission, and thus increase the reliability of optical fiber transmission information.

[0028] In the specific implementation process, such as Figure 1 and Figure 5 As shown, the splitter 3 includes a second housing 31, which is symmetrically opened. Both ends of the second housing 31 have first through holes 32 that fit the outer dimensions of the optical cable 1. One end of the second housing 31 has a second through hole 33 that fits the outer dimensions of the lead-in wire 41. A second sealing tube 34 is installed inside the second housing 31. The splice point between the optical fiber 12 and the lead-in wire 41 is located inside the second sealing tube 34. Second plugs 35 are securely installed at both ends of the second sealing tube 34. A second clamp 36 for securing the optical cable 1 and the second sealing tube 34 is fixedly installed inside the second housing 31. This device can quickly insert the cut on the optical cable 1 into the... The optical fiber 12 leading out of the optical cable 1 and the lead wire 41 leading out of the splitter 4 are protected by a sealing and protection treatment. The second housing 31 in the splitter 3 is divided into upper and lower parts. After the cut of the optical cable 1 is wrapped with the second housing 31, the upper and lower parts of the second housing 31 can be connected and fixed together with screws. Sealing rubber is installed at the joint of the upper and lower parts of the second housing 31, as well as in the first through hole 32 and the second through hole 33. This can effectively ensure the sealing of the inside of the second housing 31 after it is closed. Ultimately, it can ensure the sealing, waterproof and anti-corrosion effect of the cut on the optical cable 1, thereby effectively protecting the internal optical fiber.

[0029] The second sealing tube 34 is used to accommodate and protect the splice point between the optical fiber 12 and the lead wire 41. During installation, the spliced ​​optical fiber is first placed inside the second sealing tube 34, the second plug 35 is covered and waterproof sealant is injected, and then the second sealing tube 34 is placed into the lower half of the second housing 31. Next, the cut section of the optical cable 1 and the lead wire 41 are placed into the corresponding first through hole 32 and second through hole 33. The second clamp 36 is used to lock and fix the optical cable 1 and the second sealing tube 34. Finally, the upper half of the second housing 31 is closed and the screws are tightened. The sealing rubber at the connection position deforms under pressure and fills all gaps, thereby establishing a reliable waterproof and moisture-proof sealed chamber between the main trunk and the branch lead wire of the optical cable 1.

[0030] In the specific implementation process, such as Figure 1 As shown, the single-point splicing device 5 includes a double-layer protective tube 51, and sealing connectors 52 are installed at both ends of the double-layer protective tube 51. The lead wire 42 is directly fused to the lead wire of the fiber optic sensor 6, or fused to the lead wire of the fiber optic sensor 6 through a quick-connect device 53, and the fusion point is located inside the double-layer protective tube 51. The quick-connect device 53 includes a flange quick-connect male connector 531 or an aviation quick-connect male connector 533 fused to the sealing connector 52, and a flange quick-connect female connector 532 or an aviation quick-connect female connector 534 fused to the lead wire of the fiber optic sensor 6. The flange quick-connect male connector 531 and flange quick-connect female connector 532 are compatible, as are the aviation quick-connect male connector 533 and aviation quick-connect female connector 534. The flange quick-connect male connector 531 and flange quick-connect female connector 532 can be connected with a single core, while the aviation quick-connect male connector 533 and aviation quick-connect female connector 534 can be connected with multiple cores. According to the type of fiber optic sensor 6, the operator can select the appropriate quick-connect device 53 to quickly connect the fiber optic sensor 6 into the system, reducing workload and increasing reliability.

[0031] In the specific implementation process, such as Figure 6 - Figure 11 As shown, the integrated system is equipped with wire strippers 7 for stripping the optical fiber 12 from the optical cable 1. The wire strippers 7 include a clamp body 71, and a symmetrically arranged semi-cylinder 72 is fixedly installed on the jaw of the clamp body 71. The inner diameter of the semi-cylinder 72 is adapted to the outer diameter of the optical cable 1. Two symmetrically arranged straight blades 73 are fixedly installed on the inner side of one of the semi-cylinders 72, and the straight blades 73 point to the center of the semi-cylinder 72. An arc-shaped blade 74 is fixedly connected between the ends of the two straight blades 73, and the diameter of the side of the arc-shaped blade 74 near the center of the semi-cylinder 72 is adapted to the outer diameter of the metal ring 17. The semi-cylinder 72, together with the straight blades 73 and the arc-shaped blade 74, forms a stripping cavity 75. An arc-shaped plate 76 is fixedly connected to the rear end of the straight blades 73 and the arc-shaped blade 74.

[0032] When stripping the optical cable 1, the position of the end of the optical fiber 12 is first determined by the positioning mark 16. The blades of the straight blade 73 and the curved blade 74 are used to cut into the inside of the optical cable 1, so that the blades of the straight blade 73 and the curved blade 74 can reach the outer surface of the metal ring 17. The metal ring 17 acts as a hard barrier layer, which can prevent the blades from cutting too deeply and damaging the optical fiber 12 that is gathered inside the metal ring 17. At the same time, it can also provide a clear physical boundary for cutting. Then, the operator operates the jaws of the clamp body 71 of the wire stripper 7 to close, so that the two semi-cylinders 72 close to form a complete cylinder, which wraps around the outside of the optical cable 1.

[0033] Then, the worker holds the optical cable 1 with one hand and the wire stripper 7 with the other, controlling the wire stripper 7 to move along the optical cable 1, so that the straight blade 73 and the curved blade 74 perform cutting operations inside the optical cable 1. When the clamp body 71 is closed and axial movement begins, the two straight blades 73 will precisely cut the outer sheath 15, the steel wire stranded layer 14 and the water-blocking yarn 13 of the optical cable 1 until the two parallel cuts extend to the predetermined length. At the same time, the curved blade 74 will separate the water-blocking material wrapped around the outer side of the metal ring 17 from the optical fiber 12. The cut strip structure will be confined in the stripping cavity 75 and stripped off as the wire stripper 7 moves. Under the guidance of the inclined surface of the curved plate 76, it will separate from the main body of the optical cable 1 and be discharged, thereby exposing the metal ring 17 below and the end of the target optical fiber 12 bundled inside, without causing structural damage to other unused parts inside the optical cable 1.

[0034] According to the wiring requirements, a strip-shaped cut is peeled off along the axial direction on the outer surface of the optical cable 1. After removing the peeled part, the end of the target optical fiber 12 is led out through the cut to facilitate subsequent fusion splicing operations. By using the wire stripper 7 to strip the optical cable 1, it is possible to avoid forming a circling cut inside the optical cable 1, thereby effectively ensuring the structural integrity of the optical cable 1 after stripping and taking the wire.

[0035] In practical implementation, an integration method for a long-distance linear multi-source device all-fiber rapid integration system is provided. The integration method is applicable to long-distance linear multi-source device all-fiber rapid integration systems and includes the following steps: Step 1: Based on the distribution and installation of the fiber optic sensors 6 for on-site monitoring, fiber optic lines 12 of different lengths are customized in the optical cable 1. In the factory stage, according to the engineering survey drawings, fiber optic lines 12 of different lengths are integrated with structural elements such as metal rings 17 and filling ribs 19 according to the design position to manufacture customized segmented optical cables 1, and positioning marks 16 are printed on the outer sheath 15 at the same time. Step 2: During on-site construction, technicians locate the corresponding positioning mark 16 on the optical cable 1 according to the fiber optic sensor 6 layout diagram. They then use a special wire stripper 7 to perform an axial window opening operation at that location. The wire stripper 7 strips the section of the optical cable 1 that needs to be stripped and fused. Under the mechanical restraint of the metal ring 17, the straight blade 73 and the curved blade 74 of the wire stripper 7 precisely strip a small window, exposing the end of the target optical fiber 12. The corresponding optical fiber 12 is then pulled out from the cut and fused with the lead wire 41 to achieve the connection between the one-to-many splice device 4 and the optical cable 1. Step 3: Use splitter 3 to seal and protect the cut on optical cable 1 and the fusion splice between optical fiber line 12 and lead line 41. Splitter 4 acts as a branch node to distribute one optical signal to multiple lead lines 42. Step 4: Each lead-out line 42 is extended to the vicinity of the sensor through a single-point splicing device 5. A suitable quick-connect device 53 is selected to fuse the lead of the flange quick-connect male connector 531 or aviation quick-connect male connector 533 to the lead-out line 42. The lead of the flange quick-connect female connector 532 or aviation quick-connect female connector 534 is fused to the lead of the fiber optic sensor 6. Then, the fusion point is sealed and protected by a double-layer protective tube 51 and a sealing joint 52. Step 5: Deploy the stripped and spliced ​​optical cable 1 to the monitoring site, connect the optical cable 1 to the host through the multi-core multi-layer protection splicing device 2, and quickly connect multiple fiber optic sensors 6 through the quick plug-in device 53.

[0036] Ultimately, all the fiber optic sensors 6 transmit their monitoring signals to the multi-core, multi-layer protection splicing device 2 located in the monitoring center via the main optical cable 1, which integrates multiple independent fiber optic lines 12. From there, they are connected to the demodulation host, enabling data acquisition, integrated demodulation, and unified management of all linearly distributed multi-source sensors. This integrated system, through the cooperation of hardware structure and supporting tools, transforms the complex fiber optic system integration project into a series of standardized, repeatable, and simple operations, effectively improving the stability and construction efficiency of the fiber optic monitoring line.

[0037] Working principle of the invention: Precise pre-distribution of optical fiber resources is achieved through prefabricated segmented optical cables 1. The end of the target optical fiber line 12 is located by positioning markers 16 and protected by metal rings 17. With the help of special tools such as wire strippers 7, minimally invasive and precise optical fiber windowing and extraction can be achieved. Reliable branching of optical signals is achieved through a one-to-many splicing device 4. A differentiated sealing protection system from the trunk to the end is constructed through multi-level protection splicing devices. Finally, the rapid, reliable and standardized integration of multi-source optical fiber sensors 6 for long-distance linear deployment is achieved.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A long-distance linear multi-source device all-fiber rapid integration system, characterized in that: The system includes an optical cable (1), a multi-core multi-layer protective splicing device (2), a splitter (3), a one-to-many splicing device (4), a single-point splicing device (5), and an optical fiber sensor (6). The optical cable (1) includes multiple optical fiber lines (12) of different lengths. The multi-core multi-layer protective splicing device (2) is installed at the front end of the optical cable (1). Multiple splitters (3) are flexibly installed on the optical cable (1) at positions corresponding to the ends of the optical fiber lines (12) as needed. One end of the splicing device (4) has an input line (41) leading out, and the input line (41) is fused with the corresponding optical fiber line (12) in the splitter (3). The other end of the one-to-many splicing device (4) has multiple output lines (42) fused with the input line (41). The fusion point of the input line (41) and the output line (42) is located in the one-to-many splicing device (4), and the output line (42) is connected to the optical fiber sensor (6) through the single-point splicing device (5).

2. The all-fiber rapid integration system for long-distance linear multi-source devices according to claim 1, characterized in that: The optical cable (1) includes a reinforcing rib (11), multiple optical fibers (12) are distributed around the outside of the reinforcing rib (11), the front ends of the multiple optical fibers (12) are located at the front end of the reinforcing rib (11), the ends of the multiple optical fibers (12) are intermittently distributed on the outside of the reinforcing rib (11), each optical fiber (12) is wrapped with a loose tube, the outside of the multiple optical fibers (12) is wrapped with a water-blocking yarn (13), and the outside of the water-blocking yarn (13) is wrapped with a steel wire stranded layer (14) and an outer sheath (15) in sequence.

3. The all-fiber rapid integration system for long-distance linear multi-source devices according to claim 2, characterized in that: The outer surface of the outer sheath (15) is marked with positioning marks (16) corresponding to the ends of multiple optical fiber lines (12), and a barcode is affixed to the outer surface of the outer sheath (15).

4. The all-fiber rapid integration system for long-distance linear multi-source devices according to claim 3, characterized in that: Except for the longest optical fiber (12), the ends of the remaining optical fibers (12) are provided with metal rings (17) corresponding to the positioning mark (16), and the metal rings (17) are together sleeved on the outside of the remaining multiple optical fibers (12). The metal rings (17) are located inside the water-blocking yarn (13). The reinforcing rib (11) has a ring groove (18) corresponding to the metal ring (17). The multiple optical fibers (12) converge into the ring groove (18) under the convergence of the metal ring (17). The outer surface of the metal ring (17) is flush with the inner surface of the water-blocking yarn (13).

5. The all-fiber rapid integration system for long-distance linear multi-source devices according to claim 4, characterized in that: Except for the longest fiber optic cable (12), the ends of the remaining fiber optic cables (12) are all extended with filler ribs (19), which are located inside the water-blocking yarn (13) and the metal ring (17) and extend to the end of the reinforcing rib (11).

6. The all-fiber rapid integration system for long-distance linear multi-source devices according to claim 1, characterized in that: The splitter (3) includes a second housing (31) and the second housing (31) is symmetrically opened. The two ends of the second housing (31) are provided with a first through hole (32) adapted to the outer size of the optical cable (1). One end of the second housing (31) is provided with a second through hole (33) adapted to the outer size of the lead wire (41). A second sealing tube (34) is installed inside the second housing (31). The fusion point of the optical fiber (12) and the lead wire (41) is located inside the second sealing tube (34). The two ends of the second sealing tube (34) are fastened with second plugs (35). A second clamp (36) for fastening the optical cable (1) and the second sealing tube (34) is fixedly installed inside the second housing (31).

7. The all-fiber rapid integration system for long-distance linear multi-source devices according to claim 1, characterized in that: The single-point connection device (5) includes a double-layer protective tube (51), and sealing connectors (52) are installed at both ends of the double-layer protective tube (51). The lead wire (42) is directly fused with the lead wire of the fiber optic sensor (6), or fused with the lead wire of the fiber optic sensor (6) through a quick-connect device (53), and the fusion point is located inside the double-layer protective tube (51).

8. A long-distance linear multi-source device all-fiber rapid integration system according to claim 7, characterized in that: The quick-connect device (53) includes a flange quick-connect male connector (531) or an aviation quick-connect male connector (533) fused to the sealing joint (52), and a flange quick-connect female connector (532) or an aviation quick-connect female connector (534) fused to the lead wire of the fiber optic sensor (6). The flange quick-connect male connector (531) and the flange quick-connect female connector (532) are mated and adapted, and the aviation quick-connect male connector (533) and the aviation quick-connect female connector (534) are mated and adapted.

9. A long-distance linear multi-source device all-fiber rapid integration system according to claim 4, characterized in that: The integrated system is equipped with a wire stripper (7) for stripping the optical fiber (12) from the optical cable (1). The wire stripper (7) includes a clamp body (71), and a symmetrically arranged semi-cylinder (72) is fixedly installed on the jaw of the clamp body (71). The inner diameter of the semi-cylinder (72) is adapted to the outer diameter of the optical cable (1). Two symmetrically arranged straight blades (73) are fixedly installed on the inner side of one of the semi-cylinders (72), and the straight blades (73) point to the center of the semi-cylinder (72). An arc blade (74) is fixedly connected between the ends of the two straight blades (73), and the diameter of the side of the arc blade (74) near the center of the semi-cylinder (72) is adapted to the outer diameter of the metal ring (17). The semi-cylinder (72), together with the straight blade (73) and the arc blade (74), forms a stripping cavity (75). An arc plate (76) is fixedly connected to the rear end of the straight blade (73) and the arc blade (74).

10. An integration method for a long-distance linear multi-source device all-fiber rapid integration system, characterized in that: The integration method is applicable to the long-distance linear multi-source device all-fiber rapid integration system as described in any one of claims 1-9, and the integration method includes the following steps: Step 1: Based on the distribution and installation of the fiber optic sensors (6) for on-site monitoring, customize fiber optic cables (12) of different lengths in the optical cable (1). Step 2: Use wire strippers (7) to strip the optical cable (1) at the position where the wire needs to be stripped and fused, pull out the corresponding optical fiber (12) from the cut, and fused it with the lead wire (41) to realize the connection between the one-to-many splicing device (4) and the optical cable (1). Step 3: Use a splitter (3) to seal and protect the cut on the optical cable (1) and the splice between the optical fiber (12) and the lead wire (41); Step 4: Select a suitable quick-connect device (53), weld the lead wire of the flange quick-connect male connector (531) or aviation quick-connect male connector (533) to the lead wire (42), weld the lead wire of the flange quick-connect female connector (532) or aviation quick-connect female connector (534) to the lead wire of the fiber optic sensor (6), and then seal the weld point with a double-layer protective tube (51) and a sealing joint (52). Step 5: Deploy the stripped and spliced ​​optical cable (1) to the monitoring site, connect the optical cable (1) to the host through the multi-core multi-layer protection splicing device (2), and quickly connect multiple fiber optic sensors (6) through the quick plug-in device (53).

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