Online monitoring of umbilical, deep-sea equipment and processing method

Abstract

The present application relates to the technical field of cable, especially to an online monitoring umbilical cable, a deep sea device and a processing method. The online monitoring umbilical cable comprises an umbilical cable body, the umbilical cable body comprises an outer sheath, the outer sheath is provided with a first mounting part and a second mounting part; a first sensor is arranged on the first mounting part and used for monitoring parameters of a water environment where the umbilical cable body is located; a second sensor is arranged on the second mounting part, and the second sensor is used for monitoring a stress condition of the umbilical cable body. The first mounting part and the second mounting part are arranged on the umbilical cable body, so that the first sensor and the second sensor are fixed, the function of online monitoring of the umbilical cable is realized; secondly, the first sensor and the second sensor adopt different types of sensors and are respectively used for monitoring the parameters of the water environment where the umbilical cable body is located and the stress condition of the umbilical cable body, so that the umbilical cable is comprehensively monitored, the monitoring is comprehensive, and the precision is high.

Description

Technical Field

[0001] This invention relates to the field of cable technology, and in particular to online monitoring umbilical cables, deep-sea equipment, and processing methods. Background Technology

[0002] The umbilical cable is a core piece of equipment in deep-sea scientific research, not only transmitting power and communication but also supporting the weight of the submersible. As the submersibles used in deep-sea research become deeper and more complex, the importance of the umbilical cable becomes increasingly prominent. However, its stress state, position information, and bending and torsional attitudes during operation remain difficult to monitor. Currently, existing technologies monitor the temperature, vibration, and stress of the umbilical cable by adding distributed sensing fibers to the optical unit to understand the location of heating, vibration, and stress. These distributed sensing fibers are housed in the same stainless steel tube and have excess length during manufacturing, known as "excess length." This excess length prevents the sensing fibers from accurately sensing stress changes; when a stress change is detected, it indicates a large force on the cable, having already consumed the excess length. Even with distributed sensing fibers monitoring temperature, vibration, and stress, it's still impossible to fully understand the umbilical cable's state, such as its bending, torsional state, and actual offset under ocean currents. This makes it impossible to predict the risk of umbilical cable entanglement in scenarios where multiple submersibles operate simultaneously, and also fails to guide operators on how to avoid entanglement. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in related technologies. To this end, this invention proposes an online monitoring system for umbilical cables, deep-sea equipment, and processing methods to understand the parameters of the aquatic environment in which the umbilical cable is located and the stress conditions of the umbilical cable.

[0004] This invention also proposes an online monitoring umbilical cable, comprising: The umbilical cable body includes an outer sheath, on which a first mounting part and a second mounting part are provided; The first sensor, located on the first mounting part, is used to monitor the parameters of the water environment in which the umbilical cable body is located; The second sensor is located on the second mounting part and is used to monitor the stress on the umbilical cable body.

[0005] According to the online monitoring umbilical cable provided by the present invention, the first mounting part includes: The mounting slot is located on the outer wall of the outer sheath and is at least partially exposed to the water environment in which the umbilical cable body is located.

[0006] According to the online monitoring umbilical cable provided by the present invention, multiple mounting slots are provided and are evenly spaced at intervals along the circumferential direction of the umbilical cable body.

[0007] According to the online monitoring umbilical cable provided by the present invention, the second mounting part includes: Mounting holes are located inside the outer sheath in the radial direction.

[0008] According to the online monitoring umbilical cable provided by the present invention, multiple mounting holes are provided and are evenly spaced at intervals along the circumferential direction of the umbilical cable body.

[0009] According to the online monitoring umbilical cable provided by the present invention, the first sensor includes at least one of: an angle sensor, a water depth sensor, a temperature sensor, and a salinity sensor.

[0010] According to the online monitoring umbilical cable provided by the present invention, the second sensor includes: The sensing fiber is used to monitor stress changes at different locations on the umbilical cable body.

[0011] According to the online monitoring umbilical cable provided by the present invention, the umbilical cable body further includes: Optical unit; Electrical unit; An inner protective layer is disposed on the outer side of the optical unit and the electrical unit in the radial direction; A load-bearing layer is provided on the outer side of the inner protective layer in the radial direction; The outer sheath is located on the outside of the load-bearing layer.

[0012] According to the online monitoring umbilical cable provided by the present invention, the gap between the optical unit and the electrical unit is filled with water-blocking adhesive.

[0013] The present invention also provides a deep-sea device, including: the online monitoring umbilical cable of the present invention.

[0014] The present invention also provides a method for processing an online monitoring umbilical cable according to the present invention, comprising: Prefabricate the first and second molds; A primary extruded part with a first groove and a second groove is formed by extrusion using a first mold; The first sensor is fixed in the first groove, and the second sensor is fixed in the second groove; The outer sheath is formed by re-extruding the first sensor, the second sensor, and the outer sheath extruded part using a second mold.

[0015] The above-described one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: This invention provides an online monitoring umbilical cable, comprising: an umbilical cable body, a first sensor, and a second sensor; and by setting a first mounting part and a second mounting part on the umbilical cable body, the first sensor and the second sensor are fixed, thereby realizing the function of online monitoring of the umbilical cable; furthermore, the first sensor and the second sensor adopt different types of sensors, which are respectively used to monitor the parameters of the water environment in which the umbilical cable body is located and the stress condition of the umbilical cable body, thereby realizing comprehensive monitoring of the umbilical cable with high accuracy.

[0016] Furthermore, the deep-sea device provided by the present invention has the same advantages as described above because it includes the online monitoring umbilical cable in the above embodiments of the present invention.

[0017] Furthermore, the present invention provides a method for processing an online monitoring umbilical cable, which, when processed, produces the online monitoring umbilical cable of the present invention, and has the same advantages as described above.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention and are not considered as limitations on this application. Moreover, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional schematic diagram of an online monitoring umbilical cable provided in one embodiment of the present invention.

[0021] Figure 2 This is a cross-sectional schematic diagram of the outer sheath provided in one embodiment of the present invention.

[0022] Figure 3 This is a schematic cross-sectional view of the first mold provided in one embodiment of the present invention.

[0023] Figure 4 This is a schematic cross-sectional view of the second mold provided in one embodiment of the present invention.

[0024] Figure 5 This is a cross-sectional schematic diagram of the outer sheath extruded part formed by step S2 in one embodiment of the present invention.

[0025] Figure 6This is a cross-sectional schematic diagram of the first and second sensors fixed after step S3, provided in one embodiment of the present invention.

[0026] Figure 7 This is a cross-sectional schematic diagram of the outer sheath formed by step S4 in one embodiment of the present invention.

[0027] Figure label: 100. Umbilical cable body; 110. Outer sheath; 111. First mounting part; 112. Second mounting part; 200. First sensor; 300. Second sensor; 400. Optical unit; 500. Electrical unit; 600. Inner sheath; 700. Load-bearing layer; 800. First mold; 900. Second mold; 1000. Primary extruded part of outer sheath; 1100. Water-blocking adhesive. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The specific terms used in this specification are for illustrative purposes only and are not intended to limit the illustrated embodiments. For example, expressions such as "same" and "identical" not only indicate a strictly identical state, but also indicate a state with tolerances or differences in the degree of functionality. For example, expressions indicating relative or absolute arrangement such as "in a certain direction," "along a certain direction," "side by side," "perpendicular," "centered on," "concentric," or "coaxial" not only strictly indicate such an arrangement, but also indicate a state of relative displacement by tolerances or angles or distances with the same degree of functionality.

[0030] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0031] Furthermore, features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "multiple" means two or more. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified. In the description of the embodiments of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, B1 and / or B2 can represent: B1 existing alone, B1 and B2 existing simultaneously, and B2 existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Umbilical cables are core equipment for deep-sea scientific research, serving not only for power and communication transmission but also for supporting the weight of underwater submersibles. As the submersibles used in deep-sea scientific research go deeper and their functions become more complex, the importance of umbilical cables becomes increasingly prominent. However, it is impossible to control the stress state, position information, and bending and torsional attitudes of the umbilical cables during their operation.

[0034] However, existing technologies primarily monitor the temperature, vibration, and stress of umbilical cables by adding distributed sensing fibers to the optical unit to understand the location of heating, vibration, and stress on the umbilical cable. However, distributed sensing fibers still cannot comprehensively grasp the state of the umbilical cable, such as its bending state, torsion state, and actual offset under ocean currents, nor can they monitor the parameters of the surrounding water environment. Therefore, to address the problems of incomplete and poor monitoring accuracy in existing umbilical cable monitoring technologies, this invention proposes an online monitoring system for umbilical cables, deep-sea equipment, and a processing method.

[0035] The following is combined Figures 1 to 2 The present invention describes an online monitoring umbilical cable, which includes: an umbilical cable body 100, a first sensor 200, and a second sensor 300.

[0036] The umbilical cable body 100 includes an outer sheath 110, on which a first mounting part 111 and a second mounting part 112 are provided; a first sensor 200 is provided on the first mounting part 111 for monitoring parameters of the water environment in which the umbilical cable body 100 is located; and a second sensor 300 is provided on the second mounting part 112 for monitoring the stress on the umbilical cable body 100.

[0037] Specifically, the outer sheath 110 is the outer layer structure of the umbilical cable body 100. By processing the first mounting part 111 and the second mounting part 112 on the outer sheath 110, the first sensor 200 and the second sensor 300 are fixed respectively, thereby realizing the integration of the umbilical cable with the two types of sensors.

[0038] Furthermore, the first sensor 200 and the second sensor 300 employ different types of sensors. The first sensor 200 is mainly used to monitor the parameters of the aquatic environment in which the umbilical cable body 100 is located, and can be in the form of a specific sensor, such as water depth, tilt angle, temperature, salinity, etc. The second sensor 300 is in the form of a sensing optical fiber, and is mainly used to monitor the parameters of the umbilical cable body 100 itself, such as the stress condition. Thanks to the special properties of the sensing optical fiber, it can directly sense the tensile load, bending load, torsional load, etc., experienced by the umbilical cable body 100.

[0039] In addition, compared to the existing technology where distributed sensing optical fibers are in the same stainless steel tube and have excess length during manufacturing, referred to as "excess length", the excess length of the optical fiber makes it impossible for the sensing optical fiber to accurately sense stress changes. When a stress change is sensed, it means that the force received by the cable is large and the excess length has been consumed. In this embodiment, the sensing optical fiber is evenly distributed in the outer sheath 110, and the sensing optical fiber has no excess length. It can directly monitor the stress on the umbilical cable body 100, thereby accurately sensing stress changes.

[0040] As can be seen, by sensing the stress changes of optical fibers at different locations, the bending state of the umbilical cable can be calculated, and by calibrating with sensors such as water depth and tilt angle, the accurate underwater morphology of the umbilical cable can be determined, thus realizing online monitoring of the umbilical cable.

[0041] This invention provides an online monitoring system for umbilical cables, comprising: an umbilical cable body 100, a first sensor 200, and a second sensor 300; and by providing a first mounting part 111 and a second mounting part 112 on the umbilical cable body 100, the first sensor 200 and the second sensor 300 are fixed, thereby realizing the function of online monitoring of the umbilical cable; furthermore, the first sensor 200 and the second sensor 300 employ different types of sensors, respectively used to monitor the parameters of the water environment in which the umbilical cable body 100 is located and the stress condition of the umbilical cable body 100, thereby achieving comprehensive monitoring of the umbilical cable with high accuracy.

[0042] In one embodiment of the present invention, the first mounting part 111 includes a mounting groove located on the outer wall of the outer sheath 110 and at least partially exposed to the water environment in which the umbilical cable body 100 is located.

[0043] Specifically, the first mounting part 111 adopts a mounting groove structure, which is located on the outer wall of the outer sheath 110. The opening of the mounting groove faces the outside of the outer sheath 110, and the opening is at least exposed on the outer wall of the outer sheath 110, so that the sensing end of the first sensor 200 can contact the water environment through the opening, thereby monitoring the parameters of the water environment of the umbilical cable body 100. The mounting groove can be an arc-shaped or racetrack-shaped structure, which confines the first sensor 200 within the mounting groove. In this embodiment, the first sensor 200 is installed by the mounting groove structure exposed on the outside of the outer sheath 110, so that the first sensor 200 can monitor the water environment parameters.

[0044] In one embodiment of the present invention, multiple mounting slots are provided and are evenly spaced at intervals along the circumferential direction of the umbilical cable body 100.

[0045] Specifically, multiple mounting slots are evenly arranged along the circumferential direction of the umbilical cable body 100, with one first sensor 200 installed in each slot. By setting multiple mounting slots, the first sensors 200 are installed at different radial positions on the umbilical cable body 100. These multiple first sensors 200 monitor parameters of the surrounding aquatic environment, thereby improving monitoring accuracy. Figure 1 In the structure shown, four mounting slots are evenly arranged in the circumferential direction of the umbilical cable body 100, with a 90° angle between adjacent mounting slots.

[0046] In one embodiment of the present invention, the second mounting portion 112 includes a mounting hole located inside the outer sheath 110 in the radial direction.

[0047] Specifically, the second mounting part 112 adopts a mounting hole structure, which is located inside the outer sheath 110. This mounting hole has openings only at both ends of the outer sheath 110 along the axial direction; the rest is covered by the outer sheath 110. The outer sheath 110 supports and protects the second sensor 300, isolating it from the aquatic environment. In this embodiment, the second sensor 300 is mounted and protected by openings inside the outer sheath 110, thus protecting the relatively fragile second sensor 300.

[0048] In one embodiment of the present invention, a plurality of mounting holes are provided and are evenly spaced at intervals along the circumferential direction of the umbilical cable body 100.

[0049] Specifically, multiple mounting holes are evenly arranged along the circumferential direction of the umbilical cable body 100, with one second sensor 300 installed in each mounting hole. By using multiple mounting holes, the second sensors 300 are installed at different radial positions on the umbilical cable body 100. These multiple second sensors 300 monitor the stress on the umbilical cable, thereby determining the bending state of the umbilical cable body 100. Figure 1 In the structure shown, four mounting holes are evenly arranged in the circumferential direction of the umbilical cable body 100, with a 90° angle between adjacent mounting holes.

[0050] In one embodiment of the present invention, the first sensor 200 includes at least one of a tilt sensor, a water depth sensor, a temperature sensor, and a salinity sensor.

[0051] Specifically, the first sensor 200 primarily monitors the aquatic environment in which the umbilical cable is located. For example, it uses an inclination sensor to monitor the inclination angle of the umbilical cable body 100; a water depth sensor to monitor the water depth where the umbilical cable body 100 is located; a temperature sensor to monitor the temperature of the water environment where the umbilical cable body 100 is located; and a salinity sensor to monitor the salinity of the water environment where the umbilical cable body 100 is located. It should be understood that the first sensor 200 can also employ a combination of the above sensors, i.e., different inclination sensors, water depth sensors, temperature sensors, and salinity sensors can be installed in different mounting slots. Other types of sensors can also be used as needed; there is no limitation on the type or number of sensors.

[0052] In one embodiment of the present invention, the second sensor 300 includes a sensing optical fiber for monitoring stress changes at different locations on the umbilical cable body 100. Specifically, in the present invention, the second sensor 300 can be a distributed sensing optical fiber or a grating optical fiber.

[0053] Specifically, the second sensor 300 primarily uses optical fibers to monitor the stress on the umbilical cable body 100, detecting tensile loads, bending loads, and torsional loads. Multiple optical fibers are distributed around the umbilical cable body 100, and stress changes are monitored through these fibers at different locations. The monitoring principle is as follows: a group of four optical fibers are distributed around the umbilical cable body 100; one fiber is under tension, the opposite fiber is under pressure, and the other two experience different forces. This can be understood as the umbilical cable body 100 bending towards the side under pressure. In this embodiment, by placing multiple optical fibers within the outer sheath 110, the fiber length is minimized, thereby improving monitoring accuracy.

[0054] It should be understood that, according to the technical classification of the second sensor 300, it is mainly divided into two categories: "point / quasi-distributed" and "continuous distributed". It can be fiber Bragg grating (FBG) strain monitoring (belonging to "quasi-distributed" multi-point monitoring), distributed fiber optic strain sensing (DSS / DVS) or interferometric fiber optic strain sensor, etc.

[0055] Furthermore, the second sensor 300 employs an asymmetric sensing fiber arrangement and torsion monitoring, thereby achieving the technical effect of identifying the bending direction. This solves the technical challenge of torsion and bending coupling under complex deformation states, improving attitude calculation accuracy by more than 30% and enabling vector calculation and high-precision attitude estimation of the bending direction. Asymmetric sensing fibers are advanced fiber optic devices that achieve specific high-performance sensing functions by breaking the traditional cylindrical symmetry of optical fibers (such as asymmetric designs of fiber core geometry, dual-core structures, or interference cavity structures). In the field of torsion monitoring, asymmetric sensing fibers, by breaking the traditional cylindrical symmetry structure of optical fibers, endow the sensor with the ability to distinguish the torsion direction (clockwise / counterclockwise) and significantly improve measurement sensitivity.

[0056] In one embodiment of the present invention, the umbilical cable body 100 further includes: an optical unit 400, an electrical unit 500, an inner sheath 600, and a load-bearing layer 700. The inner sheath 600 is disposed on the outer side of the optical unit 400 and the electrical unit 500 in the radial direction; the load-bearing layer 700 is disposed on the outer side of the inner sheath 600 in the radial direction; and the outer sheath 110 is disposed on the outer side of the load-bearing layer 700.

[0057] Specifically, the cable core of the umbilical cable body 100 consists of an optical unit 400 and an electrical unit 500. From the inside out, an inner sheath 600, a load-bearing layer 700, and an outer sheath 110 are sequentially arranged on the outside of the cable core. The electrical unit 500 consists of a conductor and an insulation layer, while the optical unit 400 consists of a stainless steel tube and a sheath layer, combined by stranding. The inner sheath 600 is extruded outside the cable core, and a load-bearing layer 700 is formed by winding or braiding high-strength fibers. An outer sheath 110 is extruded outside the cable core, and a first sensor 200 and a second sensor 300 are installed on the outer sheath 110.

[0058] In one embodiment of the present invention, water-blocking adhesive 1100 is filled in the gap between the optical unit 400 and the electrical unit 500. Specifically, during the stranding process, water-blocking adhesive 1100 is filled in the gaps of the cable core.

[0059] This invention also provides a deep-sea device with applications in deep-sea scientific research, deep-sea mining and hydrate extraction, and deep-sea observation systems. This deep-sea device includes the online monitoring umbilical cable described in the above embodiments of this invention.

[0060] The deep-sea device provided by this invention has the same advantages as described above because it includes the online monitoring umbilical cable in the above embodiments of this invention.

[0061] The present invention also provides a method for processing the online monitoring umbilical cable according to the above embodiments of the present invention. The processing method includes: S1, Prefabricate the first mold 800 and the second mold 900; S2. A one-time extrusion of an outer sheath 1000 with a first groove and a second groove is formed by extrusion using the first mold 800. S3. Fix the first sensor 200 into the first groove and fix the second sensor 300 into the second groove; S4. The outer sheath 110 is formed by extruding again on the outside of the extruded parts of the first sensor 200, the second sensor 300 and the outer sheath 110 through the second mold 900.

[0062] Specifically, the first mold 800 has pre-made protrusions inside, the size of which matches the first sensor 200 and the second sensor 300. Thus, the first mold 800 extrudes and forms the outer sheath primary extruded part 1000, and grooves are formed on its surface. Then, the cable core passes through a wire feeding device, which winds the first sensor 200 and the second sensor 300 sequentially onto a reel and fixes the first sensor 200 and the second sensor 300 into the corresponding grooves by a flat dragging method. Finally, the second mold 900 uses a secondary extrusion method to extrude another layer of sheath on the outside of the outer sheath primary extruded part 1000. This layer of sheath is bonded to the outside of the outer sheath primary extruded part 1000, thereby fixing the positions of the first sensor 200 and the second sensor 300 and protecting the sensors, ultimately forming the outer sheath 110.

[0063] The structure of the first mold 800 used in the above steps is as follows: Figure 3 As shown, the structure of the second mold 900 is as follows: Figure 4 As shown, the outer sheath formed by step S2 is a one-time extruded part of 1000. Figure 5 As shown, after step S3, the first sensor 200 and the second sensor 300 are fixed as follows: Figure 6 As shown, the outer sheath 110 formed after step S4 is as follows: Figure 7 As shown.

[0064] In addition, the tension of the first sensor 200 and the second sensor 300 should be kept constant during the wire laying process. This is to ensure that the sensors do not have excess length to offset the load on the umbilical cable, and at the same time, to avoid tension fluctuations that could cause uneven stress distribution during the sensor manufacturing process.

[0065] Furthermore, the first sensor 200 and the second sensor 300 of the present invention are uniformly distributed and include at least three sensors of the same type. The first sensor 200 can directly contact seawater on the outer surface of the outer sheath 110; the second sensor 300 is inside the outer sheath 110, does not contact seawater, and is protected by the outer sheath 110.

[0066] Of course, the processing method of the online monitoring umbilical cable provided by the present invention can also be used to extrude the outer sheath 110 and the sensor in one step. In this case, a complex mold needs to be manufactured so that the sensor passes through the mold and is extruded in one step to form protection for the sensor.

[0067] The outer sheath 110 of this invention is formed by two extrusions in one step, avoiding multiple transfers that could compress or twist the sensor. The online monitoring umbilical cable processing method provided by this invention, which produces the online monitoring umbilical cable of this invention, has the same advantages as described above.

[0068] Finally, it should be noted that the above embodiments are only for illustrating the present invention and not for limiting the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. An online monitoring umbilical cable, characterized in that, include: The umbilical cable body (100) includes an outer sheath (110), on which a first mounting part (111) and a second mounting part (112) are provided. The first sensor (200) is disposed on the first mounting part (111) and is used to monitor the parameters of the water environment in which the umbilical cable body (100) is located; The second sensor (300) is disposed on the second mounting part (112) and is used to monitor the stress on the umbilical cable body (100).

2. The online monitoring umbilical cable according to claim 1, characterized in that, The first mounting part (111) includes: The mounting slot is located on the outer wall of the outer sheath (110) and is at least partially exposed to the water environment in which the umbilical cable body (100) is located.

3. The online monitoring umbilical cable according to claim 2, characterized in that, Multiple mounting slots are provided and are evenly spaced at intervals along the circumferential direction of the umbilical cable body (100).

4. The online monitoring umbilical cable according to claim 1, characterized in that, The second mounting part (112) includes: Mounting holes are located inside the outer sheath (110) in the radial direction.

5. The online monitoring umbilical cable according to claim 4, characterized in that, Multiple mounting holes are provided and are evenly spaced at intervals along the circumferential direction of the umbilical cable body (100).

6. The online monitoring umbilical cable according to any one of claims 1 to 5, characterized in that, The first sensor (200) includes at least one of a tilt sensor, a water depth sensor, a temperature sensor, and a salinity sensor.

7. The online monitoring umbilical cable according to any one of claims 1 to 5, characterized in that, The second sensor (300) includes: The sensing fiber is used to monitor the stress changes at different positions of the umbilical cable body (100).

8. The online monitoring umbilical cable according to any one of claims 1 to 5, characterized in that, The umbilical cable body (100) also includes: Optical unit (400); Electrical unit (500); An inner protective layer (600) is disposed on the outer side of the optical unit (400) and the electrical unit (500) in the radial direction; A load-bearing layer (700) is provided on the outer side of the inner protective layer (600) in the radial direction; The outer sheath (110) is located on the outside of the load-bearing layer (700).

9. The online monitoring umbilical cable according to claim 8, characterized in that, The gap between the optical unit (400) and the electrical unit (500) is filled with water-blocking adhesive (1100).

10. A deep-sea device, characterized in that, include: The online monitoring umbilical cable according to any one of claims 1 to 9.

11. A method for processing an online monitoring umbilical cable according to any one of claims 1 to 9, characterized in that, include: Prefabricate the first mold (800) and the second mold (900); A primary extruded part (1000) with a first groove and a second groove is formed by extrusion in one step according to the first mold (800); The first sensor (200) is fixed in the first groove, and the second sensor (300) is fixed in the second groove; The outer sheath (110) is formed by re-extruding the first sensor (200), the second sensor (300) and the outer sheath (110) extruded parts using a second mold (900).

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