Submarine cable fault alarm device with multi-parameter and active warning functions

Abstract

The utility model relates to a multi-parameter and active warning submarine cable fault alarm device, which belongs to the technical field of alarm equipment and comprises an alarm assembly and a monitoring assembly, and the monitoring assembly comprises a moving ring slidably sleeved on a submarine cable body and a sensor assembly installed on the moving ring. The alarm assembly comprises a protective shell, an alarm driving plate is arranged in the protective shell, an alarm indicating plate is clamped to the top end of the protective shell in a sealed mode, seven strip-shaped windows arranged in the form of the number 8 are arranged on the alarm indicating plate, number prompting assemblies in one-to-one correspondence with the strip-shaped windows are arranged on the inner side of the alarm indicating plate, and each number prompting assembly comprises an electromagnetic relay. The side face of the electromagnetic relay is in magnetic connection with a magnetic rod, the free end of the magnetic rod is fixedly connected with a sliding lamp belt, and the sliding lamp belt is fixedly connected with a reset spring used for pulling the sliding lamp belt to cover the strip-shaped window. According to the utility model, alarm information can be fed back to the sea surface in real time through'numbers' and'lamplight ', thereby facilitating routing inspection.

Description

Technical Field

[0001] This utility model relates to a multi-parameter and active warning submarine cable fault alarm device, belonging to the field of alarm equipment technology. Background Technology

[0002] Submarine cables are laid in complex marine environments and are constantly threatened by natural and man-made factors such as tidal erosion, seawater corrosion, ship anchor damage, marine organism attachment, and earthquakes. They are highly susceptible to insulation degradation, mechanical damage, and even breakage. Once a failure occurs, not only are repair costs extremely high and time-consuming, but the resulting power outages and communication disruptions can also lead to significant economic losses and social impacts. Therefore, real-time and accurate monitoring and fault early warning of submarine cables are crucial for preventative maintenance and ensuring their stable operation.

[0003] Currently, submarine cable monitoring sensors are typically deployed on the seabed or attached to the cable itself. Their operational status is invisible to shore-based or platform monitoring centers. Whether relying on manual inspections by boat or using increasingly common drones for automated inspections, it is difficult to effectively and directly observe the sensor nodes underwater or buried. When the monitoring center receives an abnormal alarm signal, the inspection personnel arriving at the scene cannot quickly and accurately correlate the alarm information with the specific fault point, fault type, and severity in the physical space. This seriously affects the efficiency of fault diagnosis and emergency response, and therefore urgently needs improvement. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model designs a multi-parameter and active warning submarine cable fault alarm device, which can realize multi-dimensional and multi-parameter detection of submarine cables, timely identify potential faults, and feed alarm information back to the sea surface in real time through "digital" and "light" signals, so that maintenance personnel and drones can quickly observe the fault type and grasp the fault level.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-parameter and active warning submarine cable fault alarm device includes an alarm component and a monitoring component. The monitoring component includes a movable ring slidably fitted onto the submarine cable body and a sensor component mounted on the movable ring. The movable ring is provided with a drive component for driving the movable ring to move along the length of the submarine cable body, and a winding component is also installed on the movable ring. The winding component winds and connects a combined cable, the free end of which is fixedly connected to the alarm component. The alarm component includes a protective shell, inside which is an alarm drive board, and the top of the protective shell is sealed and snapped with an alarm indicator board. The alarm indicator board has seven strip windows arranged in the shape of the number "8". The inner side of the alarm indicator board is provided with a digital prompt component corresponding to each strip window. The digital prompt component includes an electromagnetic relay, and a magnetic rod is magnetically connected to the side of the electromagnetic relay. A sliding light strip is fixedly connected to the free end of the magnetic rod. The electromagnetic relay and the sliding light strip are both electrically connected to the alarm drive board, and a return spring is fixedly connected to the sliding light strip for pulling the sliding light strip to cover the strip windows.

[0007] Furthermore, the winding assembly includes an I-beam and a drive motor. The drive motor is fixedly mounted on the moving ring, the I-beam is connected to the drive motor in a transmission manner, and one end of the combined cable is wound around the I-beam.

[0008] Furthermore, the drive assembly includes a pair of symmetrically arranged surrounding drive members on the left side of the moving ring; a pair of synchronously swinging adjustment blocks are drivenly connected to the surrounding drive members, and a self-driving deflection wheel is rotatably installed between the two adjustment blocks.

[0009] Furthermore, the drive assembly also includes a pair of clamping drive members symmetrically arranged on the left side of the moving ring; a pair of clamping blocks that can swing synchronously are connected to the clamping drive members, and a self-driving clamping column is rotatably installed between the two clamping blocks.

[0010] Furthermore, a plurality of cleaning drive components are fixedly installed on the right side of the moving ring and evenly arranged along the circumference. Each cleaning drive component is connected to a pair of limit blocks that can swing synchronously. A self-driven rotating brush is rotatably installed between the two limit blocks.

[0011] Furthermore, the deflecting wheel is a frustum structure with an isosceles trapezoidal cross-section, and the two deflecting wheels are arranged in opposite directions.

[0012] Furthermore, an arc-shaped groove is formed on the clamping surface of the clamping column.

[0013] Furthermore, the inner ring of the movable ring is fixedly connected with a plurality of elastic clamps evenly arranged in the circumferential direction, and the free ends of each elastic clamp are set close to the surface of the submarine cable body.

[0014] Furthermore, the combined cable includes a pull rope and a flexible sleeve sealed outside the pull rope, and a hydraulic pump capable of pumping out low-density insulating oil is installed on the movable ring, the hydraulic pump being connected to the flexible sleeve.

[0015] Furthermore, an indicator light is installed at the corner of the alarm indicator panel, and the indicator light is electrically connected to the alarm drive board.

[0016] Compared with the prior art, this utility model has the following features and beneficial effects:

[0017] 1. This utility model, by setting up an alarm component, can combine and display different numbers from 0 to 9, serving the dual function of representing fault type and fault level, making it easy for maintenance personnel to clearly identify faults during drone inspections. At the same time, the alarm driver board can adjust the flashing frequency and duration of the indicator lights, also achieving differentiated display of fault type and level, assisting shore-based maintenance personnel in accurately identifying faults when inspecting with binoculars. This effectively adapts to the needs of different application scenarios such as day and night environmental differences and manual and drone inspections, significantly improving the timely detection of alarms and understanding of fault levels by maintenance personnel and drones during inspections, and supporting their rapid determination of fault type, thus facilitating inspection personnel to efficiently formulate solutions.

[0018] 2. This utility model achieves dynamic adjustment of the distance between the moving ring and the alarm component through the combination cable and the winding assembly, so as to adapt to application scenarios at different depths. The moving ring is fixedly installed on the surface of the submarine cable. If the length of the combination cable is too large, the alarm component is difficult to maintain stably above the submarine cable and is prone to horizontal deviation. If the length of the combination cable is too small, the moving ring will be continuously subjected to tension, which poses a risk of breakage under wave load. Therefore, the design of the winding assembly can control the length of the combination cable, which can both maintain the stability of the alarm component and prevent the combination cable from breaking.

[0019] 3. This utility model, through the setting of a moving ring and the installation of sensor components on the moving ring, facilitates the collection of surface data of the submarine cable body by the sensor components. At the same time, through the setting of surrounding drive components, clamping drive components, and cleaning drive components, the moving ring installed on the submarine cable body can be moved and rotated, thereby enabling the moving ring to flexibly adjust the monitoring position, realize all-round monitoring, and expand the monitoring range, which can better adapt to the complex terrain and equipment layout of offshore wind farms. Attached Figure Description

[0020] Figure 1 This is a first-person perspective schematic diagram of the working process of this utility model;

[0021] Figure 2 This is a working schematic diagram of the present invention from a second perspective;

[0022] Figure 3 This is a schematic diagram of the inner structure of the alarm indicator panel of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the monitoring component of this utility model;

[0024] Figure 5 This is a schematic diagram of the left-side structure of the movable ring of this utility model;

[0025] Figure 6 This is a schematic diagram of the clamping column of this utility model;

[0026] Figure 7 This is a schematic diagram of the deflection wheel of this utility model;

[0027] Figure 8 This is a schematic diagram of the internal structure of the composite cable of this utility model.

[0028] The attached diagram is labeled as follows: 100, submarine cable body; 200, alarm component; 1, protective shell; 11, indicator light; 12, alarm indicator panel; 13, strip window; 14, electromagnetic relay; 15, reset spring; 16, sliding light strip; 17, magnetic rod; 2, combined cable; 21, I-beam wheel; 22, drive motor; 23, pull rope; 24, flexible sleeve; 300, monitoring component; 31, moving ring; 311, elastic clamping rod; 32, surrounding drive component; 321, adjusting block; 322, deflection wheel; 33, clamping drive component; 331, clamping block; 332, clamping column; 333, arc-shaped groove; 34, cleaning drive component; 341, limit block; 342, rotating brush. Detailed Implementation

[0029] The present invention will now be described in more detail with reference to the embodiments.

[0030] Example 1

[0031] Please see Figures 1 to 3 The multi-parameter and active warning submarine cable fault alarm device of this embodiment includes an alarm component 200 and a monitoring component 300.

[0032] The monitoring component 300 includes a movable ring 31 that is slidably sleeved on the submarine cable body 100 and a sensor component installed on the movable ring 31. The movable ring 31 is provided with a drive component for driving the movable ring 31 to move along the length of the submarine cable body 100, thereby adapting to inspections at different locations. The movable ring 31 is composed of two stainless steel semi-circular rings spliced ​​together, and the stainless steel semi-circular rings are made of 316L stainless steel components.

[0033] In this embodiment, the sensor assembly includes a partial discharge sensor, a temperature sensor, a vibration sensor, an underwater image sensor, and an underwater acoustic sensor. Multiple sensors can perform multi-dimensional and multi-parameter detection on the submarine cable body 100 and identify potential faults in a timely manner.

[0034] In this embodiment, a damping shock absorber is installed on the moving ring 31. The damping shock absorber uses the viscous resistance of the seawater itself to consume wave energy and reduce swaying, thereby keeping the moving ring 31 stable and facilitating monitoring operations.

[0035] Meanwhile, the surface of the moving ring 31 is also wrapped with a titanium alloy electrode mesh that can be applied with an electric field. The titanium alloy electrode mesh can apply a weak electric field to form an electrolytic antifouling layer, which inhibits the attachment of marine organisms (such as barnacles and algae).

[0036] The outer shells of all components of the alarm component 200 and the monitoring component 300 are double-sealed with "nitrile rubber sealing ring + liquid sealant", and the critical circuits are coated with three-proof paint to adapt to extreme working conditions such as storm surges, and can be used in high salt spray concentration environments and deep water (≤20m).

[0037] Specifically, the underwater image sensor uses high-definition image capture technology to collect panoramic spatial image information of the laying area and surrounding environment of the submarine cable 100 in real time. This includes key visual data such as seabed geological features, distribution of nearby obstacles, marine biological activity, and the actual laying position and settlement status of the cable on the seabed. It provides stable and clear optical observation capabilities in complex deep-sea environments, providing intuitive visual evidence for the long-term status monitoring of the submarine cable 100.

[0038] The underwater acoustic sensor is mainly used to monitor and collect acoustic signals in the waters surrounding the submarine cable body 100 in real time. Its core function is to detect and identify whether there are abnormal external force impacts or destructive events caused by the anchoring operation of the ship.

[0039] Data acquisition from underwater image sensors and underwater acoustic sensors allows for monitoring of potential hazards in wind farm submarine cables from the perspectives of operational changes, environmental changes, and external damage prevention. These hazards can be detected quickly. Meanwhile, the alarm component 200 can provide accurate information to maintenance personnel in advance, ensuring the stable operation of the wind farm and effectively preventing the oversight of potential faults.

[0040] The moving ring 31 is also equipped with a winding assembly, which winds and connects the combination cable 2. The free end of the combination cable 2 is fixedly connected to the alarm component 200. The winding assembly is used to wind the combination cable 2, thereby realizing the raising and lowering of the alarm component 200.

[0041] Specifically, please refer to Figure 2 and Figure 3The alarm component 200 includes a protective housing 1, inside which is an alarm driver board, which is activated by an external host computer.

[0042] Please see Figure 3 The top of the protective shell 1 is sealed with an alarm indicator plate 12. The alarm indicator plate 12 has seven strip windows 13 arranged in the shape of the number "8". The inside of the alarm indicator plate 12 is provided with digital prompt components that correspond one-to-one with each strip window 13.

[0043] The strip window 13 is rectangular in shape, and the window of the strip window 13 is sealed with a transparent glass plate to prevent seawater from entering the interior of the protective shell 1.

[0044] To more clearly demonstrate the number prompt component, Figure 3 Only one number tooltip component is shown in the image, but in reality, each bar window 13 has a corresponding number tooltip component.

[0045] Specifically, the digital display component includes an electromagnetic relay 14, a magnetic rod 17 magnetically attached to the side of the electromagnetic relay 14, a sliding light strip 16 fixedly connected to the free end of the magnetic rod 17, and a reset spring 15 fixedly connected to the sliding light strip 16 for pulling the sliding light strip 16 to cover the strip window 13. By combining the sliding light strips 16 in different positions, the numbers from 0 to 9 can be displayed.

[0046] For example, if you need to display the number "1", such as Figure 3 As shown, the strip window 13 can be covered by the two leftmost sliding light strips 16.

[0047] For example, when the number "3" needs to be displayed, the corresponding strip window 13 can be covered by the two leftmost sliding light strips 16 and the three horizontally arranged sliding light strips 16.

[0048] In this embodiment, the sliding light strip 16 is red.

[0049] The electromagnetic relay 14 and the sliding light strip 16 are both electrically connected to the alarm drive board, which can display different numbers according to control commands.

[0050] Specifically, the electromagnetic relay 14 loses power and thus loses its magnetic force under the control of the alarm drive board, the magnetic rod 17 is released, and the sliding light strip 16 will cover the strip window 13 under the elastic force of the reset spring 15.

[0051] When the display of numbers is not required, the electromagnetic relay 14 is energized under the control of the alarm drive board to restore the magnetic force and attract the magnetic rod 17, and the sliding light strip 16 is pulled away from the strip window 13.

[0052] Furthermore, an indicator light 11 is installed at the corner of the alarm indicator panel 12. The indicator light 11 is electrically connected to the alarm drive board. In this embodiment, the alarm drive board can control the flashing frequency and duration of the indicator light 11, thereby achieving differentiated display of fault type and level. In turn, it can cooperate with the digital prompt component to assist shore-based maintenance personnel in accurately identifying faults when inspecting with binoculars.

[0053] Furthermore, the inner ring of the moving ring 31 is fixedly connected with four elastic clamping rods 311 evenly arranged circumferentially. The free ends of each elastic clamping rod 311 are set close to the surface of the submarine cable body 100. When the driving component clamps the submarine cable body 100, a gap of 0.5mm is always maintained between the end of the elastic clamping rod 311 and the surface of the submarine cable body 100. This ensures good heat conduction and can adapt to the radial deformation of the submarine cable body 100. The setting of the elastic clamping rods 311 can provide an installation position for the sensor, making it convenient for the sensor to perform detection. At the same time, when the moving ring 31 moves too much, the submarine cable body 100 can limit the moving ring 31 to prevent the moving ring 31 from becoming unstable.

[0054] When installing the elastic clamp 311, technicians need to adjust the installation position and size of the elastic clamp 311 according to the diameter of the submarine cable body 100, so that a gap of 0.5mm is always maintained between the end of the elastic clamp 311 and the surface of the submarine cable body 100.

[0055] In this embodiment, temperature sensors and vibration sensors are installed at the ends of the four elastic clamping rods 311 near the submarine cable body 100 to facilitate the monitoring of temperature and vibration signals of the submarine cable body 100. A partial discharge sensor is installed on the inner wall of the moving ring 31 to facilitate the monitoring of partial discharge and short-circuit fault signals of the submarine cable body 100.

[0056] The partial discharge sensor, temperature sensor, and vibration sensor are all equipped with stainless steel protective shells, and the connecting leads are protected by polytetrafluoroethylene sleeves.

[0057] In this embodiment, the alarm driver board and each sensor are electrically connected to the host computer.

[0058] Example 2

[0059] Please see Figures 4 to 7 The multi-parameter and active warning submarine cable fault alarm device of this embodiment, based on the above embodiment one, includes a pair of surrounding drive members 32 symmetrically arranged on the left side of the moving ring 31 as the drive component.

[0060] Among them, a pair of synchronously swinging adjustment blocks 321 are connected to the surrounding drive member 32. A self-driven deflection wheel 322 is rotatably installed between the two adjustment blocks 321. The deflection wheel 322 is a frustum structure with an isosceles trapezoidal cross section, and the two deflection wheels 322 are set in opposite directions.

[0061] The swing of the adjusting block 321 can be controlled by the surrounding drive component 32, which in turn can cause the deflection wheel 322 to clamp the submarine cable body 100. The forward and backward movement and rotation of the moving ring 31 can be adjusted by the driving rotation of the self-driven deflection wheel 322, that is, the attitude of the moving ring 31 can be adjusted, thereby realizing the monitoring of different positions.

[0062] To prevent the combined cable 2 from becoming over-wound during the rotation of the moving ring 31, the forward and reverse rotation of the moving ring 31 can be controlled by the host computer to loosen the combined cable 2 in time when it is wound.

[0063] The drive assembly also includes a pair of clamping drive members 33 symmetrically arranged on the left side of the moving ring 31.

[0064] The clamping drive unit 33 is connected to a pair of clamping blocks 331 that can swing synchronously, and a self-driven clamping column 332 is rotatably installed between the two clamping blocks 331.

[0065] The clamping drive 33 can control the swing of the clamping block 331, which in turn allows the clamping column 332 to clamp the submarine cable body 100. Combined with the clamping action of the deflection wheel 322, the attitude of the moving ring 31 can be stabilized. Furthermore, the self-driven clamping column 332 can assist the deflection wheel 322 in driving the moving ring 31 to move on the submarine cable body 100.

[0066] Four cleaning drive components 34 are fixedly installed on the right side of the moving ring 31 and are evenly arranged in the circumferential direction. Each cleaning drive component 34 is connected to a pair of limit blocks 341 that can swing synchronously. A self-driven rotating brush 342 is rotatably installed between the two limit blocks 341.

[0067] The cleaning drive component 34 can control the swing of the limit block 341, thereby causing the rotating brush 342 to adhere to the surface of the submarine cable body 100. Through the self-driving design of the rotating brush 342, the surface of the submarine cable body 100 can be cleaned to prevent marine organisms from attaching.

[0068] An arc-shaped groove 333 is provided on the clamping surface of the clamping post 332. The arc-shaped groove 333 allows the clamping post 332 to better fit the submarine cable body 100.

[0069] In this embodiment, the surrounding drive 32, the clamping drive 33, and the cleaning drive 34 are all electrically connected to the host computer.

[0070] Example 3

[0071] Please see Figure 8 The multi-parameter and active warning submarine cable fault alarm device of this embodiment, based on the above embodiment one or embodiment two, includes a winding assembly comprising a bobbin 21 and a drive motor 22. The drive motor 22 is fixedly mounted on the moving ring 31. The bobbin 21 is connected to the drive motor 22 in a transmission manner, and one end of the combined cable 2 is wound around the bobbin 21. The drive motor 22 drives the bobbin 21 to rotate, thereby winding the combined cable 2. When the alarm is not needed, the alarm component 200 can be stored near the moving ring 31 through the combined cable 2, effectively reducing the risk of long-term pulling of the combined cable 2 by sea wave loads and thus causing the cable to break.

[0072] In this embodiment, the composite cable 2 is made of aramid fiber and has a waterproof coating, making it suitable for long-term immersion in seawater.

[0073] Furthermore, the composite cable 2 includes a pull rope 23 and a flexible sleeve 24 sealed outside the pull rope 23. A hydraulic pump (not shown in the figure) capable of pumping out low-density insulating oil is installed on the moving ring 31, and the hydraulic pump is connected to the flexible sleeve 24.

[0074] Low-density insulating oil can be injected into the flexible sleeve 24 by a hydraulic pump, thereby giving the combined cable 2 a certain buoyancy, which can better maintain the floating state of the alarm component 200. When the waves are large, some of the low-density insulating oil in the flexible sleeve 24 can be pumped out to adapt to different sea surface heights.

[0075] The working principle of this utility model is as follows: After the submarine cable body 100 is put into operation, the moving ring 31 can move on the submarine cable body 100, collect relevant data at different positions through the sensor components and transmit them to the host computer. Then the host computer can monitor whether there are any dangerous points on the submarine cable body 100 from the perspectives of operational changes, environmental changes and prevention of external damage.

[0076] When danger occurs or is about to occur, the I-beam 21 rotates to release the flexible sleeve 24, and the alarm component 200 will float to the surface of the sea under the buoyancy of the seawater. The digital prompt component will indicate the corresponding danger level, so that maintenance personnel and drones can quickly observe the fault type and grasp the fault level.

[0077] Once the danger has passed, the I-beam 21 rotates in the opposite direction to retract the flexible sleeve 24, and the alarm component 200 is pulled back to the vicinity of the moving ring 31 to prevent the flexible sleeve 24 from being torn apart by seawater.

[0078] In the description of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 limitations on this utility model.

[0079] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0080] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A multi-parameter and active warning submarine cable fault alarm device, characterized in that: The system includes an alarm component (200) and a monitoring component (300). The monitoring component (300) includes a movable ring (31) that is slidably sleeved on the submarine cable body (100) and a sensor component installed on the movable ring (31). The movable ring (31) is provided with a driving component for driving the movable ring (31) to move along the length direction of the submarine cable body (100). The movable ring (31) is also equipped with a winding component. The winding component winds and connects a combined cable (2). The free end of the combined cable (2) is fixedly connected to the alarm component (200). The alarm component (200) includes a protective shell (1), an alarm drive board is provided inside the protective shell (1), and an alarm indicator board (12) is sealed and snapped onto the top of the protective shell (1). The alarm indicator board (12) is provided with seven strip windows (13) arranged in the shape of the number "8". The inside of the alarm indicator board (12) is provided with a digital prompt component that corresponds one-to-one with each strip window (13). The digital prompt component includes an electromagnetic relay (14). A magnetic rod (17) is magnetically connected to the side of the electromagnetic relay (14). A sliding light strip (16) is fixedly connected to the free end of the magnetic rod (17). The electromagnetic relay (14) and the sliding light strip (16) are both electrically connected to the alarm drive board. A reset spring (15) for pulling the sliding light strip (16) to cover the strip window (13) is fixedly connected to the sliding light strip (16).

2. The submarine cable fault alarm device with multi-parameter and active warning as described in claim 1, characterized in that: The winding assembly includes a bobbin (21) and a drive motor (22). The drive motor (22) is fixedly mounted on the moving ring (31). The bobbin (21) is connected to the drive motor (22) in a transmission connection. One end of the combined cable (2) is wound around the bobbin (21).

3. The submarine cable fault alarm device with multi-parameter and active warning as described in claim 1, characterized in that: The drive assembly includes a pair of circumferential drive members (32) symmetrically arranged on the left side of the moving ring (31); a pair of synchronously swinging adjustment blocks (321) are connected to the circumferential drive members (32), and a self-driven deflection wheel (322) is rotatably installed between the two adjustment blocks (321).

4. The submarine cable fault alarm device with multi-parameter and active warning as described in claim 3, characterized in that: The drive assembly also includes a pair of clamping drive members (33) symmetrically arranged on the left side of the moving ring (31); a pair of clamping blocks (331) that can swing synchronously are connected to the clamping drive members (33), and a self-driven clamping column (332) is rotatably installed between the two clamping blocks (331).

5. The submarine cable fault alarm device with multi-parameter and active warning as described in claim 4, characterized in that: Multiple cleaning drive components (34) are fixedly installed on the right side of the moving ring (31) and evenly arranged in the circumferential direction. Each cleaning drive component (34) is connected to a pair of synchronously swinging limit blocks (341). A self-driven rotating brush (342) is rotatably installed between the two limit blocks (341).

6. The submarine cable fault alarm device with multi-parameter and active warning as described in claim 3, characterized in that: The deflection wheel (322) is a frustum structure with an isosceles trapezoidal cross section, and the two deflection wheels (322) are set in opposite directions.

7. A multi-parameter and active warning submarine cable fault alarm device according to claim 4, characterized in that: The clamping surface of the clamping column (332) is provided with an arc-shaped groove (333).

8. The submarine cable fault alarm device with multi-parameter and active warning as described in claim 1, characterized in that: The inner ring of the moving ring (31) is fixedly connected with a plurality of elastic clamps (311) evenly arranged in the circumferential direction, and the free ends of each elastic clamp (311) are set close to the surface of the submarine cable body (100).

9. A multi-parameter and active warning submarine cable fault alarm device according to claim 1, characterized in that: The combined cable (2) includes a pull rope (23) and a flexible sleeve (24) sealed outside the pull rope (23). A hydraulic pump capable of pumping out low-density insulating oil is installed on the moving ring (31), and the hydraulic pump is connected to the flexible sleeve (24).

10. A multi-parameter and active warning submarine cable fault alarm device according to claim 1, characterized in that: An indicator light (11) is also installed at the corner of the alarm indicator panel (12), and the indicator light (11) is electrically connected to the alarm drive board.

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