CN113340351A

CN113340351A - Monitoring device and method

Info

Publication number: CN113340351A
Application number: CN202110633601.6A
Authority: CN
Inventors: 潘盼; 陈鹏伟; 缪星星; 邵鹏进; 邓旭阳
Original assignee: Zhongtian Technology Submarine Cable Co Ltd
Current assignee: Zhongtian Technology Submarine Cable Co Ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-09-03

Abstract

The application provides an underwater monitoring device and method. The device includes: the system comprises a pipe cable, N cables, a terminal device and N monitoring devices. N cables are positioned inside the pipe cable. Each cable is armored and twisted with one steel wire inside the pipe cable. And N monitoring devices are arranged outside the pipe cable. N monitoring facilities are connected with N cables in a one-to-one correspondence manner. The monitoring equipment can obtain electric energy through the cable, and normal operation of the monitoring equipment is realized. The monitoring device can also upload monitoring information to the terminal device through a cable. The terminal equipment can realize the monitoring of the pipe cable according to the monitoring information. The method improves the safety of the cable, prolongs the service life of the cable, and reduces the maintenance cost of the cable.

Description

Monitoring device and method

Technical Field

The application relates to the field of safety monitoring, in particular to an underwater monitoring device and method.

Background

With the development of offshore wind power to deep and open sea, the floating type fan becomes an effective way for obtaining high-quality wind power resources and reducing construction cost. Floating wind turbines typically use dynamic photoelectric composite sea cables to transmit power and communication signals to booster stations or onshore base stations. The dynamic photoelectric composite submarine cable is simply called as a submarine cable hereinafter. In water, the submarine cable presses the cable body into an 'S' or 'W' line shape through a buoyancy block or a counterweight block. The line type can relieve the axial tension on the submarine cable body while meeting the large-range offset of the floating fan, thereby ensuring the minimum bending radius. However, the submarine cable is not only required to withstand the sloshing of the floating body, but also may be hindered by the impact of waves and ocean currents, the adhesion of marine organisms and the like, and may cause the collapse of the line shape. Meanwhile, the rigidity characteristic of the submarine cable is easy to form a vortex-induced vibration phenomenon, and further accidents such as cable metal part fracture, sheath fracture, anchoring relaxation and the like are caused. Therefore, the monitoring and early warning of the state of the submarine cable are very critical to the operation and maintenance of the floating wind turbine power transmission system.

At present, a monitoring system is mainly used for monitoring and early warning a submarine cable. The monitoring system mainly relies on a submarine cable built-in optical fiber unit for monitoring. The monitoring system can acquire local strain changes of the optical fiber. Such as temperature changes, load size, spatial location, etc. Furthermore, according to the local strain change, the monitoring system realizes the monitoring of the operation state of the submarine cable. However, inside the submarine cable, the optical fiber is very weak compared to the messenger. Under the action of large bending and stretching, the optical fiber is easy to break. Therefore, in order to relieve the load of the optical fiber body, the optical fiber is usually in a loose state in the protective sleeve, so that the optical fiber is ensured to have a certain residual length to meet the requirement of large-amplitude deformation. Although the design of the extra length ensures the body load of the optical fiber, the sensitivity of the optical fiber to the external load is greatly reduced. This reduction in sensitivity compromises the effectiveness and timeliness of the fiber for monitoring the state of movement of the sea cable.

Therefore, how to effectively and timely monitor the motion state of the submarine cable becomes a problem to be solved urgently.

Disclosure of Invention

The application provides an underwater monitoring device and method, which are used for solving the problem of effectively and timely monitoring the motion state of a submarine cable.

In a first aspect, the present application provides a monitoring device comprising: the system comprises a pipe cable, terminal equipment, N cables and N monitoring devices, wherein N is a positive integer;

the N cables are positioned inside the pipe cable, the N monitoring devices are positioned outside the pipe cable, first ends of the N cables are correspondingly connected with the N monitoring devices one by one, and second ends of the N cables are connected with the terminal device;

the N monitoring devices are used for monitoring the pipe cable and generating monitoring information, and the terminal device is used for acquiring the monitoring information output by the N monitoring devices through the cable and outputting a monitoring result according to the monitoring information.

Optionally, a mounting hole is formed in a mounting position of each monitoring device on the umbilical, and each monitoring device is connected to the first end of the corresponding cable through the corresponding mounting hole.

Optionally, the apparatus further comprises: a cable jacket;

the cable jacket is located at the installation hole of the tube cable and used for preventing external media from entering the interior of the tube cable.

Optionally, the apparatus further comprises: n wireless devices;

n wireless devices and N monitoring facilities one-to-one, N wireless devices install in inside the pipe cable, N wireless devices and N cable one-to-one are connected, wireless devices are used for carrying out wireless charging for the monitoring facilities who corresponds, and/or, carry out wireless communication with the monitoring facilities who corresponds.

Optionally, the wireless device is located below the corresponding monitoring device.

Optionally, the monitoring device is located underwater and the external medium is water.

Optionally, the apparatus further comprises: forming a structure;

the forming structure is located on the periphery of the monitoring device and/or on the outside of the umbilical and is used for keeping the umbilical in an S shape or a W shape under water.

Optionally, the molding structure comprises: buoyancy blocks and/or clump weights.

Optionally, the buoyancy block and/or the balancing weight are hollowed to form a cavity so as to fit the shell of the monitoring device.

In a second aspect, the present application provides a monitoring method, comprising:

acquiring monitoring information output by N monitoring devices;

determining the motion track of the pipe cable according to the monitoring information output by the N monitoring devices;

determining the linetype and fatigue degree of the pipe cable according to the motion trail;

and generating a monitoring result of the pipe cable according to the line type and the fatigue degree.

Optionally, the method further comprises:

and when the monitoring result meets the early warning condition, sending early warning information.

Wherein the early warning condition comprises:

the cable profile does not meet a predetermined profile condition, and/or

The fatigue degree is greater than a preset fatigue threshold value.

The application provides a monitoring devices, including pipe cable, N cable, terminal equipment and N monitoring facilities. N cables are positioned inside the pipe cable. Each cable is armored and twisted with one steel wire inside the pipe cable. And N monitoring devices are arranged outside the pipe cable. N monitoring facilities are connected with N cables in a one-to-one correspondence manner. The monitoring equipment can obtain electric energy through the cable, and normal operation of the monitoring equipment is realized. The monitoring device can also upload monitoring information to the terminal device through a cable. The terminal equipment can realize the monitoring of the pipe cable according to the monitoring information. In the application, through the method of using the transposition, when guaranteeing pipe cable intensity, improve the security of cable, increase the life of cable, reduced the maintenance cost of cable. Meanwhile, the stability of the cable is improved, the effectiveness of data transmission can be guaranteed, and the data transmission efficiency of the monitoring equipment is improved.

Drawings

In order to more clearly illustrate the technical solutions in the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic view of an application scenario of a floating wind turbine according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a monitoring device according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a pipe cable according to an embodiment of the present application;

fig. 4 is a schematic view of an installation structure of a monitoring device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of another monitoring device provided in an embodiment of the present application;

FIG. 6 is a schematic view of an installation structure of a molding structure according to an embodiment of the present disclosure;

fig. 7 is a flowchart of a monitoring method according to an embodiment of the present application.

Reference numerals:

11: an umbilical;

12: a cable; 121: a cable protective sheath; 122: a wireless device;

13: monitoring equipment;

14: a terminal device;

15: forming a structure; 151: a cavity;

16: steel wire armoring; 17: a sheath layer; 18: an insulating layer; 19: and (4) clamping.

Detailed Description

To make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the above-described drawings (if any) are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

At present, a monitoring system is mainly used for monitoring and early warning a submarine cable. The monitoring system mainly relies on a submarine cable built-in optical fiber unit for monitoring. The monitoring system can acquire local strain changes of the optical fiber. Such as temperature changes, load size, spatial location, etc. Furthermore, according to the local strain change, the monitoring system realizes the monitoring of the operation state of the submarine cable. However, inside the submarine cable, the optical fiber is very weak compared to the messenger. Under the action of large bending and stretching, the optical fiber is easy to break. Therefore, in order to relieve the load of the optical fiber body, the optical fiber is usually in a loose state in the protective sleeve, so that the optical fiber is ensured to have a certain residual length to meet the requirement of large-amplitude deformation. Although the design of the extra length ensures the body load of the optical fiber, the sensitivity of the optical fiber to external load is greatly reduced, so that the optical fiber is no longer sensitive to the stretching and bending motions of the submarine cable. The signal output by the fiber will not reflect the actual motion of the sea cable. Even, the optical fiber will not be able to identify the relatively weak movement of the submarine cable.

In the prior art, the monitoring effect of the optical fiber, the characteristic of easy brittle failure of the optical fiber and the maintenance difficulty of the optical fiber in the submarine cable are integrated, the extra length of the optical fiber is increased by priority, and the stable signal transmission is ensured. This inevitably leads to a reduction in the monitoring effect of the optical fiber. Therefore, how to effectively and timely monitor the motion state of the submarine cable becomes a problem to be solved urgently.

To address this problem, the present application proposes a monitoring device. This application is through at submarine cable external mounting monitoring facilities, realizes the monitoring to the motion state of submarine cable. The monitoring equipment is tightly attached to the outer wall of the submarine cable in a ribbon, bolt, clamp and other modes. Wherein, the monitoring device can comprise N monitoring devices. The monitoring equipment can be used for monitoring information such as the position, the vibration amplitude, the temperature and the like of the submarine cable. Each monitoring device may be connected to a cable. The N monitoring devices can upload the corresponding monitoring data to the terminal device through the N cables. Wherein the cable may be located inside the submarine cable. One cable may be stranded with a steel wire sheath inside the submarine cable. The cable may be connected to the monitoring device through a sheath of the submarine cable at a location proximate to the monitoring device. The cable can avoid the problem that the service life of the cable is short in the case of an external cable. The cable can be used for stably supplying power to the monitoring equipment, so that the operation stability of the monitoring equipment is improved, and the maintenance cost is reduced. Meanwhile, the cable can also upload monitoring data of the monitoring equipment to the terminal equipment. Wherein, the terminal equipment can be installed on the basis of floating wind turbine. Alternatively, the terminal device may be installed in an onshore base station.

In the arrangement of a submarine cable, it is often necessary to maintain the submarine cable in an S-shape or W-shape under water in order to ensure the stability of the submarine cable under the impact of the wave currents. The S-shaped or W-shaped line type is realized by binding a forming structure on the submarine cable. The shaped structures may be in the buoyancy block and/or the counterweight block. The submarine cable can be also provided with monitoring equipment. The monitoring device is used for monitoring information such as ocean current, temperature and vibration underwater, and simultaneously, the monitoring device also needs to monitor the line type of the submarine cable so as to ensure the stability of the submarine cable underwater. In practical use, one or more of a temperature measuring instrument, an ocean current velocimeter, a vibration sensor, a positioning instrument and the like can be included in the monitoring equipment. The one or more instruments may be independent instruments, and constitute the monitoring device used in the present application. Alternatively, the one or more instruments may be integrated together to form a monitoring device for use herein. In order to accurately fit the underwater line type of the submarine cable, the installation position of the monitoring equipment can be kept consistent with the forming structure. In order to increase the lifetime of the monitoring device, the monitoring device may be mounted inside the forming structure. The forming structure can help the monitoring equipment to stop accidents such as wave ocean current impact, marine organism adhesion, impact and the like, so that the service life is prolonged, and the maintenance cost is reduced.

The technical solution of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Fig. 1 shows a schematic view of an application scenario of a floating wind turbine provided in an embodiment of the present application. As shown, the floating wind turbine is suspended at the sea surface. The floating fan is connected with a submarine cable. The submarine cable can be divided into two sections, one section is a section from the seabed to the floating fan, and the other section is a seabed section. Wherein, the submarine cable of seabed section is fixed in on the seabed, can be stable and safe realization transmission. Among them, a submarine cable from the seabed to the floating fan section is suspended in the sea and may be damaged by ocean current impact, marine organism adhesion, marine organism or object impact, etc. Meanwhile, the floating wind turbine floats on the sea surface, so that the floating wind turbine floats in the sea along with the waves on the sea surface. The submarine cable also plays a role in fixing the floating type fan while transmitting power to the floating type fan. The length of the sea cable will limit the floating range of the floating wind turbine, thus avoiding the loss caused by the free floating of the floating wind turbine. To achieve the offset of the floating wind turbine, it is necessary to cause an increase in the axial tension on the sea cable. Therefore, in order to increase the stability of the submarine cable, it is generally necessary to maintain the "S" or "W" profile of the submarine cable by using a forming structure. The axial tension on the submarine cable body can be relieved while the floating type fan is deflected in a large range, so that the minimum bending radius is guaranteed, and the risk of submarine cable breakage is reduced.

The monitoring device used in the application can be applied to submarine cables, and can also be applied to petroleum pipelines, drainage pipelines, exhaust pipelines and other pipelines. The monitoring device used in the application can be applied to pipelines and cables in the sea and can also be applied to media such as water, petroleum and air. Therefore, in the following embodiments, the installation and arrangement of the monitoring device will be described using an umbilical.

Fig. 2 shows a schematic structural diagram of a monitoring device according to an embodiment of the present application. On the basis of the embodiment shown in fig. 1, as shown in fig. 2, the monitoring device 10 of the present embodiment may include: the system comprises a pipe cable 11, N cables 12, N monitoring devices 13 and a terminal device 14, wherein N is a positive integer;

the N cables 12 are located inside the umbilical 11. Each cable 12 is stranded with a steel wire armor 16 inside the umbilical. The cable 12 and the steel wire armouring 16 can be as shown in figure 3. The stranded cable 12 may be distributed between the inner jacket layer 17 and the outer jacket layer 17 of the tube cable 11. Specifically, when the number of cables 12 that the umbilical 11 is to use is designed, the N wire harnesses 16 may be pulled out of the umbilical 11. Further, the cable 12 twisted with the wire sheath 16 is refilled in the umbilical 11. The use of this stranding method avoids the reduction of wire armor 16 within umbilical 11 due to the addition of cable 12, thereby reducing the strength of umbilical 11. Meanwhile, in the stranding method, the cable 12 can be placed inside the tube cable 11, and compared with the method of fixing the cable 12 outside the tube cable 11, the method greatly improves the safety of the cable 12, prolongs the service life of the cable 12, and reduces the maintenance cost of the cable 12.

The umbilical 11 may be provided with an insulating layer 18 made of a high density polyethylene material. The insulating layer 18 may be a material that encapsulates the conductors in the umbilical 11. The insulating layer 18 may also be a covering material for the cable 12. The inner sheath layer 17 and the outer sheath layer 17 of the cable 11 are also made of high-density polyethylene material. In addition, the umbilical 11 may also include an optical unit 18 therein. The optical unit is the conductor material inside the umbilical 11.

The outside of the umbilical 11 is fitted with N monitoring devices 13. The N monitoring devices 13 are connected to the N cables 12 in a one-to-one correspondence. Each monitoring device 13 is connected to a first end of one of the cables. The second end of the cable is linked to the terminal device 14. The monitoring device 13 uploads monitoring information to the terminal device 14 via the cable 12. Wherein, the monitoring information is not the data that N monitoring devices 13 monitored umbilical 11 obtained. The terminal device 14 may output the monitoring result according to the monitoring information output by the N monitoring devices. Fig. 4 shows a schematic view of the installation of a monitoring device 13 on the umbilical 11. As shown, the cable 12 in the umbilical 11 is connected to a monitoring device 13. A plurality of sensors may be included in the monitoring device 13 for monitoring information such as ocean currents, temperatures, vibrations, etc. The monitoring device 13 may be mounted to the umbilical 11 by a clamp 19. Alternatively, the monitoring device 13 may be attached to the umbilical 11 by means of straps, ties, bolts, or the like. When the monitoring device 13 is installed on the umbilical 11, the relative position of the monitoring device 13 and the umbilical 11 remains fixed. Wherein a plurality of monitoring devices 13 may be mounted on one umbilical 11. The position of each monitoring device 13 on the umbilical 11 is relatively fixed. Therefore, after the terminal device 14 obtains the position information of the N monitoring devices 13, the terminal device 14 may fit the position information to obtain the cable type of the umbilical.

Wherein the cable 12 may be directly connected to the monitoring device 13, thereby enabling transmission of electrical signals. Or the cable 12 can be connected with the monitoring device 13 through a wireless device to realize wireless transmission of signals.

The specific implementation process of the two connection modes can be as follows:

in one example, the mounting location of each monitoring device 13 on the umbilical 11 is provided with a mounting hole. Through which the cable 12 in the umbilical 11 passes out of the umbilical 11. The first end of the cable 12 is connected to a monitoring device 13 outside the umbilical 11. To prevent external media from entering the interior of umbilical 11 through the mounting hole, the monitoring device 10 also includes a cable jacket 121. The cable protective sheath 121 is located at the mounting hole of the umbilical 11. One end of the cable protective sheath 11 is connected to the outer sheath layer 17 of the umbilical 11 for preventing external media from entering the inside of the umbilical.

In another example, N wireless devices 122 are also mounted in umbilical 11. N wireless devices 122 are connected to the N cables 12 in a one-to-one correspondence. N wireless devices 122 are mounted inside the umbilical 11. The N wireless devices 122 correspond one-to-one to the N monitoring devices 13. The wireless device 122 is located below the corresponding monitoring device 13. The wireless device 122 may wirelessly charge the corresponding monitoring device 13 and/or wirelessly communicate with the corresponding monitoring device 13.

The monitoring device that this application provided includes pipe cable, N cable, terminal equipment and a N monitoring facilities. N cables are positioned inside the pipe cable. Each cable is armored and twisted with one steel wire inside the pipe cable. And N monitoring devices are arranged outside the pipe cable. N monitoring facilities are connected with N cables in a one-to-one correspondence manner. The monitoring equipment can obtain electric energy through the cable, and normal operation of the monitoring equipment is realized. The monitoring device can also upload monitoring information to the terminal device through a cable. The terminal equipment can realize the monitoring of the pipe cable according to the monitoring information. In the application, through the method of using the transposition, when guaranteeing pipe cable intensity, improve the security of cable, increase the life of cable, reduced the maintenance cost of cable. Meanwhile, the stability of the cable is improved, the effectiveness of data transmission can be guaranteed, and the data transmission efficiency of the monitoring equipment is improved.

Fig. 5 is a schematic structural diagram of another monitoring device provided in an embodiment of the present application. On the basis of the embodiments shown in fig. 1 to 4, as shown in fig. 5, the monitoring device 10 of the present embodiment may include: forming a structure 15.

One end of the umbilical 11 is connected to a floating fan. In order to ensure that the axial tension on the cable body of the umbilical 11 does not damage the cable body when the floating wind turbine is shifted in a large range, the cable body of the umbilical 11 can be kept in an S shape or a W shape. The umbilical 11 may be maintained in an "S" or "W" profile by adding a forming structure 15 to the cable body. The shaped structure 15 is located on the periphery of the monitoring device 13 and/or outside the umbilical. A schematic view of the mounting structure of the forming structure 15 can be seen in fig. 6. Wherein the forming structure 15 may be mounted on the umbilical 11 by a clamp 19.

In one example, the shaped structure may be a buoyancy block and/or a weight block. The umbilical 11 is attached to the cable body by a buoyancy block, thereby floating a partial region of the umbilical 11. The umbilical 11 sinks a partial region of the umbilical 11 by fixing a weight to the cable body. By the floating or sinking arrangement, the umbilical is finally rendered S-shaped or W-shaped in the medium.

In one example, the interior of the buoyancy block and/or weight block is hollowed out to form a cavity to fit the housing of the monitoring device 13. For example, as shown in molding apparatus 15 in FIG. 6, two cavities 151 may be included therein. The monitoring device 13 may be mounted inside this cavity 151. The arrangement of the buoyancy block and/or the counterweight block outside the monitoring device 13 can protect the monitoring device 13 from being directly impacted, can also protect the monitoring device 13 from being attached by marine organisms, and can also reduce the influence of ocean current impact on the monitoring device 13, and the like.

The application provides a monitoring devices, still includes the shaping structure. The shaped structure is located on the periphery of the monitoring device and/or on the exterior of the umbilical. The shaped structure may be a buoyancy block and/or a weight block. The buoyancy block and/or the balancing weight are/is hollowed to form a cavity so as to be attached to the shell of the monitoring equipment. In this application, make the umbilical be "S" or "W" line type through using forming structure to improve the stability of umbilical, reduce the cracked risk of umbilical under the axial force effect. Meanwhile, the cavity is hollowed out in the forming structure, so that the monitoring equipment is protected, the service life of the monitoring equipment is prolonged, and the maintenance cost is reduced.

Fig. 7 shows a flowchart of a monitoring method according to an embodiment of the present application. On the basis of the embodiments of fig. 1 to 6, as shown in fig. 7, with a terminal device as an execution main body, the method of this embodiment may include the following steps:

s101, acquiring monitoring information output by the N monitoring devices.

In this embodiment, the terminal device obtains the monitoring information output by the N monitoring devices through the cable connected to the terminal device. The monitoring information may include position information, temperature information, vibration information, and the like.

And S102, determining the motion track of the pipe cable according to the monitoring information output by the N monitoring devices.

In this embodiment, the monitoring device may upload the monitoring information to the terminal device in real time. And the terminal equipment determines the motion track of the pipe cable according to the real-time changed position information.

S103, determining the linetype and the fatigue degree of the umbilical cable according to the motion trail.

In this embodiment, the terminal device may determine the line type of the umbilical at each moment according to the motion trajectory. The terminal equipment can also determine the vibration amplitude, the bending condition and the like of the pipe cable according to the motion track. And according to the information such as the vibration amplitude, the bending condition and the like, the terminal equipment determines the fatigue degree of the pipe cable.

And S104, generating a monitoring result of the pipe cable according to the line type and the fatigue degree.

In this embodiment, the terminal device may determine that the line type of the umbilical is abnormal according to the line type and the preset line type of the umbilical. When the umbilical is mislaid, the umbilical may experience excessive strain, which may increase the fatigue of the umbilical. Alternatively, when an abnormality occurs in the wire form of the umbilical, the molding structure of the umbilical may be abnormal.

The terminal equipment can determine whether the pipe cable is in transition fatigue or not according to the fatigue degree of the pipe cable and a preset fatigue threshold value. When the fatigue level of the umbilical exceeds a preset fatigue threshold, the cable body of the umbilical may be damaged due to transition fatigue. At this moment, the terminal device needs to remind an administrator to overhaul in time or replace components on the pipe cable in time.

And S105, sending early warning information when the monitoring result meets the early warning condition. Wherein, the early warning condition includes: the umbilical profile does not meet a predetermined profile condition and/or the fatigue level is greater than a predetermined fatigue threshold.

In this embodiment, the terminal device determines whether to perform an early warning according to the monitoring result. For example, when the umbilical line type does not match the predetermined line type for a predetermined length of time, there may be a risk of damage to the umbilical. At this time, the terminal device may transmit the warning information. Or when the terminal equipment judges that the fatigue degree of the pipe cable is greater than the preset fatigue threshold value, the terminal equipment can send early warning information to remind an administrator of performing regular maintenance.

According to the monitoring method, the terminal equipment acquires the monitoring information output by the N monitoring equipment. And the terminal equipment determines the motion track of the pipe cable according to the real-time changed position information. The terminal equipment can determine the linetype and fatigue degree of the umbilical at each moment according to the motion trail. The terminal equipment can generate the monitoring result of the pipe cable according to the line type and the fatigue degree. And the terminal equipment judges whether early warning is needed or not according to the monitoring result. And when the monitoring result meets the early warning condition, the terminal equipment sends early warning information. In this application, realize the monitoring to the pipe cable through acquireing monitoring information to when the pipe cable appears unusually or the prediction is about to appear unusually, send early warning information to the administrator, thereby reduce the maintenance cost, improve maintenance efficiency.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules is merely a division of logical functions, and an actual implementation may have another division, for example, a plurality of modules may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.

Wherein the modules may be physically separated, e.g. mounted at different locations of one device, or mounted on different devices, or distributed over multiple network elements, or distributed over multiple processors. The modules may also be integrated, for example, in the same device, or in a set of codes. The respective modules may exist in the form of hardware, or may also exist in the form of software, or may also be implemented in the form of software plus hardware. The method and the device can select part or all of the modules according to actual needs to achieve the purpose of the scheme of the embodiment.

When the respective modules are implemented as integrated modules in the form of software functional modules, they may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor to execute some steps of the methods according to the embodiments of the present application.

It should be understood that, although the respective steps in the flowcharts in the above-described embodiments are sequentially shown as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, in different orders, and may be performed alternately or at least partially with respect to other steps or sub-steps of other steps.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: it is also possible to modify the solutions described in the previous embodiments or to substitute some or all of them with equivalents. And the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A monitoring device, comprising: the system comprises a pipe cable, terminal equipment, N cables and N monitoring devices, wherein N is a positive integer;

2. The monitoring device of claim 1, wherein the mounting location of each monitoring device on the umbilical is provided with a mounting hole, and each monitoring device is connected to the first end of the corresponding cable through the corresponding mounting hole.

3. The monitoring device of claim 2, further comprising: a cable jacket;

4. The monitoring device of claim 1, further comprising: n wireless devices;

5. The monitoring device of claim 4, wherein the wireless device is located below the corresponding monitoring device.

6. A device according to any one of claims 1 to 5, wherein the device is located underwater and the external medium is water.

7. The monitoring device of any one of claims 1 to 5, wherein the device further comprises: forming a structure;

8. The monitoring device of claim 7, wherein the shaped structure comprises: buoyancy blocks and/or clump weights.

9. The device according to claim 8, wherein the buoyancy block and/or weight block is hollowed out to form a cavity to fit the housing of the monitoring apparatus.

10. A method of monitoring a monitoring device, the monitoring device being as claimed in any one of claims 1 to 9, the method comprising:

acquiring monitoring information output by N monitoring devices;

11. The method of monitoring of claim 10, further comprising:

when the monitoring result meets an early warning condition, sending early warning information;

wherein the early warning condition comprises:

the cable profile does not meet a predetermined profile condition, and/or

The fatigue degree is greater than a preset fatigue threshold value.