Monitoring device and monitoring method

Abstract

The invention relates to a monitoring device and a monitoring method. By arranging the sampling mechanism and the driving mechanism, the driving mechanism can drive the sampling mechanism to generate displacement at least in the vertical direction, and sampling of seawater at different depths is achieved. Meanwhile, the first detection unit and the second detection unit are arranged, so that the information of the sampling position can be better acquired. In addition, whether the cable leaks oil or not can be found more timely by arranging the detection mechanism. Finally, a controller is arranged to be electrically connected with the sampling unit, the first detection unit, the second detection unit, the driving mechanism and the detection mechanism respectively, and when the detection mechanism detects that the water sample sampled by the sampling mechanism contains oil, the oil in the water sample is detected; the controller determines the oil leakage position of the cable according to the ocean current information of the corresponding water sample acquired by the first detection unit and the position information of the corresponding water sample acquired by the second detection unit, so that the accuracy and reliability of the oil leakage position are improved, and the safety and stability of the submarine cable are effectively improved.

Description

Technical Field

[0001] The present application relates to the field of ocean monitoring technology, and in particular to a monitoring device and a monitoring method. Background Art

[0002] With the development of submarine cable power transmission technology, submarine cables have been widely used in offshore platforms and island power supply, marine clean energy transmission, and cross-regional power transmission. During the operation of submarine cables, due to the long-term scouring of the ocean current, as the scouring accumulates, the submarine cables will be exposed and suspended in the air. In severe cases, the submarine cables may fail and leak oil. Therefore, how to monitor the ocean current to improve the safety and stability of submarine cables is an urgent problem to be solved. Summary of the invention

[0003] Based on this, it is necessary to provide a monitoring device to monitor the ocean currents to improve the safety and stability of the submarine cables.

[0004] According to one aspect of the present application, an embodiment of the present application provides a monitoring device for monitoring the oil leakage position of a cable located in the sea, the monitoring device comprising:

[0005] hull;

[0006] The sampling mechanism comprises a sampling unit, a first detection unit and a second detection unit, wherein the sampling unit is configured to sample seawater, the first detection unit is configured to detect the direction and speed of a current, and the second detection unit is configured to obtain position information of a sampling position of the sampling unit;

[0007] A driving mechanism connected to the sampling mechanism; the driving mechanism is configured to drive the sampling mechanism to generate displacement at least in a vertical direction;

[0008] a detection mechanism, disposed on the hull; the detection mechanism is configured to detect whether the water sampled by the sampling mechanism contains oil; and

[0009] The controller is arranged on the hull; the controller is electrically connected to the sampling unit, the first detection unit, the second detection unit, the driving mechanism and the detection mechanism respectively; when there is oil in the water sampled by the sampling mechanism, the controller is configured to determine the oil leakage position of the cable according to the detection information of the first detection unit and the detection information of the second detection unit.

[0010] In one embodiment, the sampling unit includes a plurality of sampling components;

[0011] The sampling components are electrically connected to the controller, and the plurality of sampling components are configured to be independently controllably opened or closed.

[0012] In one embodiment, the sampling assembly includes:

[0013] A sampling piece having a receiving cavity and an opening communicating with the receiving cavity;

[0014] A cover body is disposed in the accommodating cavity; and

[0015] The first driving member is electrically connected to the controller and is transmission-connected to the cover body so that the cover body can open or close the opening.

[0016] In one embodiment, the drive mechanism includes a second drive member and a retractable assembly;

[0017] The second driving member is electrically connected to the controller and to the retractable assembly; the retractable assembly is connected to the sampling mechanism, and the retractable assembly is configured to drive the sampling mechanism to move in the vertical direction under the drive of the second driving member.

[0018] In one embodiment, the retractable assembly includes a rotating member and a pulling member;

[0019] The rotating member is connected to the second driving member, the traction member is wound around the rotating member, and the traction member is connected to the sampling mechanism.

[0020] In one embodiment, the sampling unit, the first detection unit and the second detection unit are all connected to the traction member; or

[0021] The first detection unit and the second detection unit are both arranged on the sampling unit, and the sampling unit is connected to the traction member.

[0022] In one embodiment, the monitoring device further includes a counterweight, which is connected to the sampling unit.

[0023] In one embodiment, the first detection unit includes a speed sensor and a direction sensor both electrically connected to the controller;

[0024] The speed sensor is configured to detect the speed of the ocean current, and the direction sensor is configured to detect the direction of the ocean current.

[0025] In one embodiment, the location information includes the sampling location of the sampling unit and the water depth of the sampling location.

[0026] According to another aspect of the present application, an embodiment of the present application further provides a monitoring method, using a monitoring device as in any of the above embodiments to monitor the oil leakage location of a cable located in the sea; the monitoring method comprises:

[0027] If the detection mechanism detects that the water sample sampled by the sampling mechanism contains oil, the oil leakage position of the cable is determined according to the detection information of the first detection unit and the detection information of the second detection unit.

[0028] The above monitoring device and monitoring method at least include a hull, a sampling mechanism, a driving mechanism, a detection mechanism and a controller. By setting the sampling mechanism and the driving mechanism, the sampling mechanism includes a sampling unit, a first detection unit and a second detection unit, so that the driving mechanism can drive the sampling mechanism to generate displacement at least in the vertical direction, so as to realize the sampling of seawater at different depths. At the same time, the first detection unit can obtain the current direction and current speed of the corresponding sampling position, and the second detection unit can obtain the position information of the corresponding sampling position, which is conducive to better obtaining the information of the sampling position. In addition, by setting the detection mechanism, it is possible to more timely find out whether the cable has oil leakage, thereby improving the sensitivity and accuracy of monitoring. Finally, by setting the controller to electrically connect the sampling unit, the first detection unit, the second detection unit, the driving mechanism and the detection mechanism respectively, when the detection mechanism detects that there is oil in the water sample sampled by the sampling mechanism, the controller can determine the oil leakage position of the cable according to the current information of the corresponding water sample obtained by the first detection unit and the position information of the corresponding water sample obtained by the second detection unit, thereby improving the accuracy and reliability of the oil leakage position. Therefore, the monitoring device provided in the embodiment of the present application reduces labor costs, improves monitoring efficiency and the accuracy and reliability of monitoring results, thereby effectively improving the safety and stability of submarine cables.

[0029] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] By reading the detailed description of the following embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the embodiments and are not considered to be limitations of the present application. In addition, the same reference numerals are used to represent the same components throughout the drawings.

[0031] In the attached picture:

[0032] Figure 1 A schematic diagram of the structure of a monitoring device provided in some embodiments of the present application at a viewing angle;

[0033] Figure 2 A schematic diagram of determining the oil leak location by a monitoring device provided in some embodiments of the present application;

[0034] Figure 3 A schematic diagram of a cross-sectional structure of a portion of a monitoring device provided in some embodiments of the present application;

[0035] Figure 4 A schematic diagram of another partial cross-sectional structure of a monitoring device provided in some embodiments of the present application;

[0036] Figure 5 A flowchart of a monitoring method provided for some embodiments of the present application.

[0037] The reference numerals in the specific implementation manner are as follows:

[0038] Monitoring device 100;

[0039] Hull 110;

[0040] Sampling mechanism 120, sampling unit 121, sampling assembly 121a, sampling member A, accommodating chamber r, opening k, cover body B, first driving member Q1, first detection unit 122, second detection unit 123;

[0041] Driving mechanism 130, second driving member Q2, retractable assembly 131, rotating member 131a, traction member 131b;

[0042] Testing agency 140;

[0043] Controller 150;

[0044] Counterweight 160;

[0045] Sea surface L;

[0046] First direction F1;

[0047] Step S100. DETAILED DESCRIPTION

[0048] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0049] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0050] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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 the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0052] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0053] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0054] Figure 1 A schematic diagram of the structure of the monitoring device provided in an embodiment of the present application at a viewing angle is shown; for ease of explanation, only the content related to the embodiment of the present application is shown.

[0055] Please refer to Figure 1An embodiment of the present application provides a monitoring device for monitoring the oil leakage location of a cable located in the sea. The monitoring device 100 includes a hull 110, a sampling mechanism 120, a driving mechanism 130, a detection mechanism 140 and a controller 150.

[0056] The sampling mechanism 120 includes a sampling unit 121, a first detection unit 122 and a second detection unit 123. The sampling unit 121 is configured to sample seawater, the first detection unit 122 is configured to detect the direction and speed of the ocean current, and the second detection unit 123 is configured to obtain the position information of the sampling position of the sampling unit 121.

[0057] The driving mechanism 130 is connected to the sampling mechanism 120, and the driving mechanism 130 is configured to drive the sampling mechanism 120 to generate displacement in at least the vertical direction. It is understandable that the driving mechanism 130 can drive the sampling mechanism 120 to generate displacement in the vertical direction, and the driving mechanism can also drive the sampling mechanism 120 to generate displacement in other directions. In the embodiment of the present application, the vertical direction is the first direction F1. It should be noted that, if Figure 1 As shown, the driving mechanism 130 is disposed on the hull 110. The hull 110 can also move so that the sampling mechanism 120 is displaced as the hull 110 moves.

[0058] In the sea, the conditions of seawater at different depths are different. The vertical position of the sampling mechanism can be changed by the driving mechanism 130, so that the sampling unit 121 can sample seawater at different depths. At the same time, the first detection unit 122 can detect the current direction and current speed at the sampling position, and the second detection unit 123 can detect the position information of the sampling position, thereby improving the comprehensiveness and accuracy of monitoring.

[0059] The detection mechanism 140 is arranged on the hull 110. The detection mechanism 140 is configured to detect whether there is oil in the water sample sampled by the sampling mechanism 120. It can be understood that after the sampling unit 121 in the sampling mechanism 120 samples water samples of different depths, the driving mechanism 130 can pull the sampling mechanism 120 back to the hull 110, and the detection mechanism 140 detects the water samples of different depths sampled by the sampling unit 121. In the embodiment of the present application, the cable is an oil-filled cable, which is a cable that uses insulating oil as an insulating medium. If oil is not detected in the water sample, it can be said that the sampling position is normal. If oil is detected in the water sample, it can be said that there is a fault in the cable in the sea.

[0060] The controller 150 is disposed on the hull 110. Specifically, the controller 150 is electrically connected to the sampling unit 121, the first detection unit 122, the second detection unit 123, the driving mechanism 130 and the detection mechanism 140. In the case where the water sampled by the sampling mechanism 120 contains oil, the controller 150 is configured to determine the oil leakage position of the cable according to the detection information of the first detection unit 122 and the detection information of the second detection unit 123.

[0061] It is understandable that, when the detection mechanism 140 detects the presence of oil in the water sample taken by the sampling mechanism 120, the controller 150 can obtain the information of the ocean current direction and ocean current speed at the sampling position corresponding to the water sample containing oil obtained by the first detection unit 122, and the position information of the sampling position corresponding to the water sample containing oil obtained by the second detection unit 123, such as Figure 2 As shown, a schematic diagram of the calculation process is shown, where P is the sampling position of the water sample where the detection mechanism 140 detects oil, D is the position where the cable leaks oil, V0 is the ocean current velocity, and H is the water depth at the sampling position where the oil is detected. The ocean current velocity (V0) and the ocean current direction are known, and the component velocity V1 in the vertical direction can be calculated; the time when the oil reaches the sampling position can be obtained according to H and V1. After determining the time, the controller 150 can calculate the relative distance S between the sampling position and the oil leakage position of the cable according to the ocean current velocity and direction; then the controller 150 can determine the oil leakage position of the cable according to the relative distance between the sampling position and the oil leakage cable and the position information of the sampling position. It should be noted that the oil in the seawater can diffuse with the flow of the ocean current. When oil is detected at a certain sampling position, the ocean current direction and ocean current velocity at the sampling position are crucial for the controller 150 to determine the oil leakage position of the cable.

[0062] After determining the oil leak location of the cable, the operator can enter the sea to repair the cable according to the oil leak location. It should be noted that there may be an error range between the determined oil leak location and the actual cable oil leak location, and the error range does not affect the operator's entry into the sea to repair the cable.

[0063] Thus, by setting the sampling mechanism 120 and the driving mechanism 130, the sampling mechanism 120 includes the sampling unit 121, the first detection unit 122 and the second detection unit 123, so that the driving mechanism 130 can drive the sampling mechanism 120 to generate displacement at least in the vertical direction, so as to achieve the sampling of seawater at different depths. At the same time, the first detection unit 122 can obtain the current direction and current speed of the corresponding sampling position, and the second detection unit 123 can obtain the position information of the corresponding sampling position, which is conducive to better obtaining the information of the sampling position. In addition, by setting the detection mechanism 140, it is possible to more timely detect whether there is oil leakage in the cable, thereby improving the sensitivity and accuracy of monitoring. Finally, by setting the controller 150 to be electrically connected to the sampling unit 121, the first detection unit 122, the second detection unit 123, the driving mechanism 130 and the detection mechanism 140, when the detection mechanism 140 detects that the water sampled by the sampling mechanism contains oil, the controller 150 can determine the oil leakage position of the cable according to the ocean current information of the corresponding water sample obtained by the first detection unit 122 and the position information of the corresponding water sample obtained by the second detection unit 123, thereby improving the accuracy and reliability of the oil leakage position. Therefore, the monitoring device 100 reduces the labor cost, improves the monitoring efficiency and the accuracy and reliability of the monitoring results, and thus effectively improves the safety and stability of the sea cable.

[0064] In some embodiments, please refer to Figure 1 The sampling unit 121 includes a plurality of sampling components 121a.

[0065] Specifically, the sampling assembly 121a is electrically connected to the controller 150, and the plurality of sampling assemblies 121a are configured to be independently controllable to be opened or closed. It is understandable that the controller 150 can control the plurality of sampling assemblies 121a to be opened or closed independently. It should be noted that the number of the sampling assemblies 121a can be 2, 3, 4 or 5, which can be set according to the actual situation, and the embodiment of the present application does not impose specific restrictions on this. The controller 150 can control one sampling assembly 121a to be opened or closed, can control two sampling assemblies 121a to be opened or closed, can control three sampling assemblies 121a to be opened or closed, and can control other numbers of sampling assemblies 121a to be opened or closed, which can be selected according to the actual situation, and the embodiment of the present application does not impose specific restrictions on this.

[0066] The multiple sampling components 121a in the sampling unit 121 can be numbered, and the controller 150 can control the sampling components 121a with different numbers respectively, so that the controller 150 can subsequently control the multiple sampling components 121a to perform sampling.

[0067] The driving mechanism 130 drives the sampling mechanism 120 to move at different depths. When the sampling mechanism 120 reaches a certain depth and needs to sample, the controller 150 can control a sampling component 121a in the sampling unit 121 to open and obtain the seawater sample at the depth. After the sampling is completed, the controller 150 controls the sampling component 121a that has completed the sampling to close. At the same time, the controller 150 controls the first detection unit 122 to obtain the information of the current direction and current speed of the sampling position, and the controller 150 controls the second detection unit 123 to obtain the position information of the sampling position of the sampling component 121a. The first detection unit 122 and the second detection unit 123 transmit this information to the controller 150. The controller 150 can correspond and record the information of the current direction and current speed of the sampling component 121a and the position information of the sampling component 121a controlled at the same time, so that when the detection mechanism 140 detects that there is oil in the sampled water sample later, the controller 150 can determine the oil leakage position of the cable based on the information of the current direction and current speed and the position information of the sampling position corresponding to the sampling component 121a.

[0068] When the sampling mechanism 120 performs sampling at the next depth, the sampling assembly 121a that completed sampling last time is no longer opened, and the controller 150 can control one of the sampling assemblies 121a that have not been sampled in the sampling unit 121 to open. It can be understood that when sampling at different depths, the sampling assembly 121a controlled by the controller 150 to open each time is different.

[0069] Of course, when the sampling mechanism 120 reaches a certain depth and needs to sample, the controller 150 can also control the two sampling components 121a in the sampling unit 121 to open at the same time to obtain seawater samples at the depth, so that a wider range of water samples can be obtained at the depth, and the accuracy of subsequent inspections can be improved. It can also better determine the location of the cable oil leak after detecting that the water sample contains oil. After the sampling is completed, the controller 150 controls the two sampling components 121a that have completed the sampling to close at the same time. At the same time, the controller 150 controls the first detection unit 122 to obtain the information of the current direction and current speed of the sampling position, and the controller 150 controls the second detection unit 123 to obtain the location information of the sampling position of the sampling component 121a. The first detection unit 122 and the second detection unit 123 transmit this information to the controller 150. The controller 150 can correspond the number of the sampling component 121a controlled at the same time with the location information, current direction and speed information of the sampling component 121a, and record them. The driving mechanism 130 can then drive the sampling mechanism 120 to reach the next depth, and the controller 150 can control the other two unsampled sampling components 121a to perform sampling. The specific process can be referred to in the previous text and will not be repeated here. The controller 150 can also control another unsampled sampling component 121a to perform sampling. The controller 150 can also control another number of unsampled sampling components 121a to perform sampling. The specific process is similar to the process mentioned in the previous text and will not be repeated here. That is, the controller 150 can control the same number of sampling components 121a to be opened for sampling and closed after the sampling is completed during each sampling process. The controller 150 can also control different numbers of sampling components 121a to be opened for sampling and closed after the sampling is completed during each sampling process. It can be set according to the actual situation, and the embodiment of the present application does not impose specific restrictions on this.

[0070] When the controller 150 controls multiple sampling components 121a to open and sample the same position, when the subsequent detection mechanism 140 detects that at least one sampling component 121a has oil, the controller 150 can determine the location of the oil leakage in the cable based on the information of the sampling position, thereby improving the accuracy of the monitoring device 100.

[0071] In this way, by setting up multiple sampling components 121a, and the sampling components 121a are electrically connected to the controller 150, the multiple sampling components 121a can be independently controlled to be opened or closed, so that seawater at different depths can be sampled, thereby improving the flexibility and monitoring efficiency of the monitoring device 100.

[0072] Figure 2 A schematic diagram of a partial cross-sectional structure of a monitoring device provided in some embodiments of the present application is shown; for ease of explanation, only the content related to the embodiments of the present application is shown.

[0073] In some embodiments, please refer to Figure 1 , and combined with reference Figure 2 The sampling assembly 121a includes a sampling component A, a cover body B and a first driving component Q1.

[0074] In the embodiment of the present application, before the driving mechanism 130 drives the sampling mechanism 120 to enter the sea, the multiple sampling components 121a in the sampling mechanism 120 are all in a closed state, and after the sampling is completed, the sampling components 121a are also in a closed state.

[0075] The sampling member A may refer to a member for obtaining sampled seawater. Specifically, the sampling member A has a receiving cavity r and an opening k connected to the receiving cavity r. The opening k allows seawater to enter the receiving cavity r, and the receiving cavity r can be used to store the taken seawater sample. In addition, the size and shape of the opening k may be set according to actual conditions, and the embodiment of the present application does not impose specific restrictions on this.

[0076] The cover body B may refer to a component that allows the sampled seawater to enter the sampling member A and seals the sampled seawater in the sampling member A. Specifically, the cover body B is disposed in the accommodating chamber r. The first driving member Q1 is electrically connected to the controller 150 and is transmission-connected to the cover body B, so that the cover body B can open or close the opening k.

[0077] The first driving member Q1 is electrically connected to the controller 150 and is transmission-connected to the cover body B. It is understandable that the controller 150 can control the action of the first driving member Q1, and the action of the first driving member Q1 can be transmitted to the cover body B, thereby realizing the function of the cover body B opening or closing the opening k.

[0078] When the cover body B is in a state of closing the opening k, it can reduce the amount of seawater entering the containing chamber r, or reduce the interference of the seawater sample with external factors (such as the mixing of other seawater, the entry of impurities, etc.) after the sampling is completed; when sampling is required, the controller 150 controls the first driving member Q1 to make the cover body B open the opening k, so that the seawater can enter the containing chamber r more smoothly.

[0079] It should be noted that the first driving component Q1 can be a motor or a hydraulic mechanism, etc., and can be configured according to actual conditions. The embodiment of the present application does not impose any specific limitation on this.

[0080] In this way, by setting the sampling member A, the cover body B and the first driving member Q1, the sampling member A has a receiving chamber r and an opening k connected to the receiving chamber r, so that the seawater can enter the receiving chamber r and complete the sampling. After the sampling is completed, the cover body B can close the opening in time, effectively blocking the external seawater, impurities, plankton, etc. from entering the receiving chamber r, which is conducive to the subsequent detection mechanism 140 to detect more accurately. The first driving member Q1 is electrically connected to the controller 150 and is transmission-connected to the cover body B, so that the sampling process of the entire sampling component 121a can be controlled by the controller 150, thereby improving the degree of automation. When sampling is required, the controller can send an instruction to let the first driving member Q1 drive the cover body B to open the opening k. After the seawater enters the receiving chamber r to complete the sampling, it can drive the cover body B to close the opening k, which not only improves the efficiency of sampling, but also reduces the errors and uncertainties that may be caused by manual operation, and improves the reliability and effectiveness of the monitoring work of the monitoring device 100.

[0081] In some embodiments, please refer to Figure 1 The driving mechanism 130 includes a second driving member Q2 and a retractable assembly 131 .

[0082] Specifically, the second driving member Q2 is electrically connected to the controller 150 and connected to the retracting assembly 131. The retracting assembly 131 is connected to the sampling mechanism 120, and the retracting assembly 131 is configured to drive the sampling mechanism 120 to move in the vertical direction under the drive of the second driving member Q2. The retracting assembly 131 may refer to a component that puts the sampling mechanism 120 into the sea and can recover the sampling mechanism 120 to the hull 110 after sampling is completed.

[0083] It should be noted that the second driving member Q2 can be a motor or a hydraulic mechanism, etc., and can be configured according to actual conditions. The embodiment of the present application does not impose any specific limitation on this.

[0084] The second driver Q2 can be connected to the controller 150 by electrical connection. It can be understood that the controller 150 can send corresponding control instructions to the second driver Q2 to control the second driver Q2 to work. At the same time, the second driver Q2 is connected to the retractable assembly 131, and can provide power for the retractable assembly 131, so that the retractable assembly 131 can drive the sampling mechanism 120 to move in the vertical direction under the drive of the second driver Q2, so that the sampling mechanism 120 can reach the seawater areas of different depths for sampling. In addition, during the sampling process of the sampling mechanism 120, it can be artificially operated to make the sampling mechanism 120 reach the seawater areas of different depths, or the controller 150 can pre-set the program to make the sampling mechanism 120 reach the seawater areas of different depths.

[0085] When it is necessary to sample seawater layers at different depths, the controller 150 can send a control instruction to the second driver Q2, so that the second driver Q2 drives the retractable assembly 131 to move in the vertical direction (i.e., the first direction F1); and when the sampling position at a certain depth is reached, the controller 150 can control the second driver Q2 to stop working, so that the sampling mechanism 120 can better sample and obtain the sampling position information, the direction information of the current, and the speed information. After all the multiple sampling components 121a in the sampling mechanism 120 have completed sampling, the controller 150 controls the second driver Q2 to drive the retractable assembly 131 to drive the sampling mechanism 120 to move toward the sea surface L, which is conducive to the recovery of the sampling mechanism 120. After the sampling mechanism 120 is recovered, the detection mechanism 140 can detect the multiple sampling components 121a in the sampling unit 121, and the first detection unit 122 and the second detection unit 123 can be maintained and maintained, which is conducive to the next monitoring.

[0086] In this way, by providing the second driving member Q2 and the retractable assembly 131, the comprehensiveness of monitoring can be further improved, so that the sampling mechanism 120 can sample seawater in different water layers, reducing the occurrence of missing the depth range of oil leakage, thereby more effectively determining the location of cable oil leakage.

[0087] Figure 3 Another partial cross-sectional structural schematic diagram of the monitoring device in some embodiments of the present application is shown; for ease of explanation, only the content related to the embodiments of the present application is shown.

[0088] In some embodiments, please refer to Figure 1 and Figure 2 , and combined with reference Figure 3 The retractable assembly 131 includes a rotating member 131a and a pulling member 131b.

[0089] Specifically, the rotating member 131a is connected to the second driving member Q2, the traction member 131b is wound around the rotating member 131a, and the traction member 131b is connected to the sampling mechanism 120. Figure 3 As shown, it schematically illustrates the situation that the rotating member 131a is connected to the second driving member Q2, and the traction member 131b is wound around the rotating member 131a.

[0090] It can be understood that the controller 150 controls the second driving member Q2 to work. Under the drive of the second driving member Q2, the rotating member 131a can rotate, so that the traction member 131b can drive the sampling mechanism 120 to move, which is more conducive to the retraction and release of the sampling mechanism 120. When the rotating member 131a rotates, the traction member 131b can be reeled or unreeled accordingly. For example, when reeling, the traction member 131b can be gradually shortened, generating an upward pulling force on the sampling mechanism 120, so that the sampling mechanism 120 rises; and when unreeling, the length of the traction member 131b increases, and the sampling mechanism can move downward under the assistance of its own gravity or other external forces, so as to achieve sampling of seawater at different depths.

[0091] It should be noted that the traction member 131b can be a rope, a chain, etc., and can be set according to actual conditions, and the embodiment of the present application does not make any specific limitations.

[0092] In this way, by setting up the retractable assembly including the rotating member 131a and the traction member 131b, the rotating member 131a is rotated under the drive of the second driving member Q2, thereby realizing the retraction and extension of the traction member 131b, and the sampling mechanism 120 is lowered to different depth positions more quickly, thereby realizing the sampling of seawater at different depths, and improving the adaptability and flexibility of the monitoring device 100.

[0093] In some embodiments, please refer to Figure 1 , the sampling unit 121, the first detection unit 122 and the second detection unit 123 are all connected to the traction member 131b; or, the first detection unit 122 and the second detection unit 123 are both arranged in the sampling unit 121, and the sampling unit 121 is connected to the traction member 131b.

[0094] When the sampling unit 121, the first detection unit 122 and the second detection unit 123 are all connected to the traction member 131b, the controller 150 controls the second driving member Q2 to work, and the second driving member Q2 drives the retractable assembly 131 to drive the sampling mechanism 120 to move in the vertical direction. After the sampling unit 121, the first detection unit 122 and the second detection unit 123 reach the target depth driven by the traction member 131b, the sampling assembly 121a in the sampling unit 121 is controlled by the controller 150 to sample the seawater at the depth. Since multiple sampling assemblies 121a can be independently controlled, the controller 150 can perform targeted sampling at different depths or positions as needed. The first detection unit 122 is also connected to the traction member 131b. As the traction member 131b moves, the first detection unit 122 can obtain the direction and speed of the ocean current at the depth in real time at different depths and positions. The current conditions in the ocean may vary with depth. The first detection unit 122 is connected to the traction member 131b, and the second detection unit 123 is connected to the traction member 131b. When the traction member 131b is in a vertical state, the first detection unit 122 can more conveniently obtain the current data corresponding to each sampling position, and the second detection unit 123 can also obtain the sampling position information synchronously with the position changes of the sampling unit 121 and the first detection unit 122, so that when the detection mechanism 140 detects that the sampled water sample contains oil, the controller 150 can better determine the oil leakage position of the cable. When the traction member 131b is not in a vertical state, that is, the sampling unit 121, the first detection unit 122 and the second detection unit 123 are at a certain angle to the vertical direction, when the detection mechanism 140 detects that the sampled water sample contains oil, the controller 150 can still determine the oil leakage position of the cable based on the information obtained by the first detection unit 122 and the second detection unit 123. The controller 150 can correct the sampling position in combination with the current direction and current speed, so that the controller 150 can better determine the oil leakage position of the cable.

[0095] When the sampling unit 121 moves to different positions for sampling, the second detection unit 123 can determine the position information of each sampling position. It should be noted that the second detection unit 123 can also determine the position information of each sampling position in real time so that the operator can know the position information of the sampling position more clearly.

[0096] When the first detection unit 122 and the second detection unit 123 are both arranged on the sampling unit 121, and the sampling unit 121 is connected to the traction member 131b, the controller 150 controls the second driving member Q2 to work, and the second driving member Q2 drives the retracting assembly 131 to drive the sampling mechanism 120 to move in the vertical direction. After the sampling unit 121, the first detection unit 122 and the second detection unit 123 reach the target depth driven by the traction member 131b, the sampling unit 121 can sample the seawater at the location. At the same time, since the first detection unit 122 and the second detection unit 123 are both arranged on the sampling unit 121, the first detection unit 122 and the second detection unit 123 can immediately obtain the ocean current information and location information of the location. Since the first detection unit 122 is arranged on the sampling unit 121, the first detection unit 122 can more directly detect the direction and speed of the ocean current at the sampling position when the sampling unit 121 arrives at the sampling position, so that the acquisition of ocean current information and the sampling action can be performed simultaneously, reducing the ocean current information error that may be caused by position differences and time delays. The second detection unit 123 is arranged on the sampling unit 121, and the second detection unit 123 can directly obtain the position information of the sampling unit 121, which can provide a more accurate position basis for the subsequent determination of the oil leakage position of the cable.

[0097] In this way, by connecting the sampling unit 121, the first detection unit 122 and the second detection unit 123 to the traction member 131b; or by arranging the first detection unit 122 and the second detection unit 123 in the sampling unit 121, and the sampling unit 121 is connected to the traction member 131b, the sampling unit 121, the first detection unit 122 and the second detection unit 123 can cooperate more closely, thereby improving the reliability of the monitoring device 100 and facilitating improving the monitoring efficiency.

[0098] In some embodiments, please refer to Figure 1 The monitoring device 100 further includes a counterweight 160 .

[0099] Specifically, the counterweight 160 is connected to the sampling unit 121. It is understandable that the counterweight 160 can be connected to the end of the traction member 131b, and the counterweight 160 can also be set on the sampling unit 121. The function of the counterweight 160 is to enable the sampling mechanism 120 to resist the buoyancy of seawater and move more smoothly in the sea.

[0100] It should be noted that the counterweight 160 can be a heavy component such as a stone, and the weight of the counterweight 160 can be set according to actual conditions, and the embodiment of the present application does not impose any specific restrictions on this.

[0101] In this way, by providing the configuration member 160 , the sampling mechanism 120 can be more smoothly lowered to different sampling positions, so that the sampling mechanism 120 can better sample seawater at different depths.

[0102] In some embodiments, please refer to Figure 1 , the first detection unit 122 includes a speed sensor and a direction sensor both electrically connected to the controller 150 .

[0103] Specifically, the speed sensor is configured to detect the speed of the ocean current, and the direction sensor is configured to detect the direction of the ocean current.

[0104] In this way, by providing a speed sensor and a direction sensor electrically connected to the controller 150, the speed and direction information of the ocean current at the sampling location can be detected more accurately, which is conducive to more accurately determining the oil leakage location of the cable later.

[0105] In some embodiments, please refer to Figure 1 The location information includes the sampling location of the sampling unit 121 and the water depth of the sampling location.

[0106] In this way, by setting the position information including the sampling position of the sampling unit 121 and the water depth of the sampling position, the second detection unit 123 can more accurately transmit the sampling position information to the controller 150, which is conducive to the subsequent controller 150 to more accurately determine the oil leakage position of the cable.

[0107] Figure 4 A flow chart of a monitoring method of a monitoring device in some embodiments of the present application is shown; for ease of explanation, only content related to the embodiments of the present application is shown.

[0108] Based on the same invention concept, please refer to Figure 4 The present application embodiment provides a monitoring method, using a monitoring device as described in any of the above embodiments to monitor the oil leakage position of a cable located in the sea. The monitoring method comprises the following steps:

[0109] Step S100 : If the detection mechanism 140 detects that the water sampled by the sampling mechanism 120 contains oil, the oil leakage position of the cable is determined according to the detection information of the first detection unit 122 and the detection information of the second detection unit 123 .

[0110] In step S100, after the sampling mechanism 120 obtains seawater samples at different depths, the driving mechanism 130 drives the sampling mechanism 120 so that the sampling mechanism 120 can return to the sea surface and be recovered to the hull 110; then, the detection mechanism 140 detects the water sample sampled by the sampling mechanism 120. If the detection mechanism 140 detects that the water sample sampled by the sampling mechanism 120 contains oil, the controller 150 can perform relevant calculations based on the current speed and direction information of the sampling position of the corresponding water sample obtained by the first detection unit 122, and the position information of the sampling position of the corresponding water sample obtained by the second detection unit 123, to determine the oil leakage position of the cable; finally, the operator enters the sea according to the oil leakage position of the cable and reaches the oil leakage position of the cable for maintenance.

[0111] In this way, the monitoring efficiency as well as the accuracy and reliability of the monitoring results can be improved, thereby effectively improving the safety and stability of submarine cables.

[0112] Before step S100, the driving mechanism 130 drives the sampling mechanism 120 to enter the sea. Before the sampling mechanism 120 enters the sea, the sampling components 121a in the sampling mechanism 120 are all in a closed state. Then, the driving mechanism 130 drives the sampling mechanism 120 to move in at least the vertical direction. When the sampling mechanism 120 reaches a certain depth, the controller 150 controls at least one sampling component 121a to open, and the sampling component 121a performs sampling. At the same time, the first detection unit 122 obtains the speed and direction information of the ocean current at the sampling position, and the second detection unit 123 obtains the position information of the sampling position. The first detection unit 122 and the second detection unit 123 transmit the information to the controller 150, and the controller 150 corresponds the information obtained at the same time to the controlled sampling component 121a. Then, the driving mechanism 130 drives the sampling mechanism 120 to the next depth for sampling. The sampling assembly 121a that has been sampled is no longer opened. The controller 150 controls at least one other sampling assembly 121a that has not been sampled to open for sampling. At the same time, the first detection unit 122 obtains the speed and direction information of the ocean current at this sampling position and the second detection unit 123 obtains the position information of this sampling position. The first detection unit 122 and the second detection unit 123 transmit the information to the controller 150, and the controller 150 then corresponds the information obtained at the same time to the controlled sampling assembly 121a. In this way, the driving mechanism 130 drives the sampling mechanism 120 to the next depth again until all the sampling assemblies 121a in the sampling unit 121 are sampled. The driving mechanism 130 drives the sampling mechanism 120 back to the hull 110, and the sampling mechanism 120 completes sampling.

[0113] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0114] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A monitoring device for monitoring the oil leakage position of a cable located in the sea, characterized in that: The monitoring device comprises: hull; A sampling mechanism, comprising a sampling unit, a first detection unit and a second detection unit, wherein the sampling unit is configured to sample seawater, the first detection unit is configured to detect a current direction and a current speed, and the second detection unit is configured to obtain position information of a sampling position of the sampling unit; A driving mechanism connected to the sampling mechanism; the driving mechanism is configured to drive the sampling mechanism to generate displacement at least in a vertical direction; a detection mechanism, disposed on the hull; the detection mechanism is configured to detect whether the water sampled by the sampling mechanism contains oil; and A controller is arranged on the hull; the controller is electrically connected to the sampling unit, the first detection unit, the second detection unit, the driving mechanism and the detection mechanism respectively; when there is oil in the water sample sampled by the sampling mechanism, the controller is configured to determine the oil leakage position of the cable according to the detection information of the first detection unit and the detection information of the second detection unit.

2. The monitoring device according to claim 1, characterized in that: The sampling unit includes a plurality of sampling components; The sampling components are electrically connected to the controller, and the plurality of sampling components are configured to be independently controllably opened or closed.

3. The monitoring device according to claim 2, characterized in that: The sampling assembly comprises: A sampling member having a receiving cavity and an opening communicating with the receiving cavity; a cover body, disposed in the accommodating cavity; and The first driving member is electrically connected to the controller and is transmission-connected to the cover body so that the cover body can open or close the opening.

4. The monitoring device according to any one of claims 1 to 3, characterized in that: The driving mechanism includes a second driving member and a retractable assembly; The second driving member is electrically connected to the controller and to the retractable assembly; the retractable assembly is connected to the sampling mechanism, and the retractable assembly is configured to drive the sampling mechanism to move in the vertical direction under the drive of the second driving member.

5. The monitoring device according to claim 4, characterized in that: The retractable assembly includes a rotating member and a traction member; The rotating member is connected to the second driving member, the traction member is wound around the rotating member, and the traction member is connected to the sampling mechanism.

6. The monitoring device according to claim 5, characterized in that: The sampling unit, the first detection unit and the second detection unit are all connected to the traction member; or The first detection unit and the second detection unit are both arranged on the sampling unit, and the sampling unit is connected to the traction member.

7. The monitoring device according to any one of claims 1 to 3, characterized in that: The monitoring device further comprises a counterweight, and the counterweight is connected to the sampling unit.

8. The monitoring device according to any one of claims 1 to 3, characterized in that: The first detection unit includes a speed sensor and a direction sensor both electrically connected to the controller; The speed sensor is configured to detect the speed of the ocean current, and the direction sensor is configured to detect the direction of the ocean current.

9. The monitoring device according to any one of claims 1 to 3, characterized in that: The location information includes the sampling location of the sampling unit and the water depth of the sampling location.

10. A monitoring method, characterized in that: The oil leakage position of the cable located in the sea is monitored using the monitoring device as described in any one of claims 1 to 9; the monitoring method comprises: If the detection mechanism detects that the water sample sampled by the sampling mechanism contains oil, the oil leakage position of the cable is determined according to the detection information of the first detection unit and the detection information of the second detection unit.

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