Submarine cable fault positioning method, device, equipment, medium and product

Abstract

The invention relates to a submarine cable fault positioning method, device and equipment, a medium and a product. The method comprises the following steps: acquiring a first moment when an ashore pulse power supply transmits pulse current to a submarine cable; acquiring a second moment when a sound signal generated by discharging of the pulse current at the submarine cable fault point reaches a shipborne underwater sound acquisition device; determining a first distance between the submarine cable fault point and the underwater sound acquisition device according to the first moment and the second moment; and determining the position of the submarine cable fault point according to the first distance. According to the application, the pulse current is generated to the submarine cable through the ashore pulse power supply, but the electromagnetic signal is not detected, but the sound signal emitted by the pulse current when the pulse current discharges at the submarine cable fault point is detected, that is, the accuracy and the reliability of the submarine cable fault point can be improved by adopting an acoustic-magnetic combination mode. Therefore, high-efficiency and high-precision submarine cable fault positioning can be realized in a marine environment without network signals.

Description

Technical Field

[0001] The present application relates to the technical field of fault detection, and in particular to a method, apparatus, device, readable storage medium, and program product for locating a submarine cable fault. Background Art

[0002] Submarine cables are crucial infrastructure for international communications and power transmission. Fault detection and location are crucial for maintaining the stability of these systems. Existing submarine cable fault detection methods primarily rely on acoustic or magnetic signal detection. However, due to the lack of network signals in the ocean, efficient and high-precision fault location is difficult. Therefore, a solution that can efficiently and accurately locate submarine cable faults in an environment without network signals is urgently needed. Summary of the Invention

[0003] Based on this, it is necessary to provide a method, device, equipment, medium and product for locating submarine cable faults that can achieve high efficiency and high precision in order to solve the above technical problems.

[0004] In a first aspect, the present application provides a method for locating a submarine cable fault, which is applied to a shipboard computing device. The method comprises:

[0005] Obtain the first moment when the shore pulse power supply transmits a pulse current to the submarine cable;

[0006] Acquire the second moment when the sound signal generated by the pulse current discharged at the fault point of the submarine cable reaches the underwater sound collection device on board the ship;

[0007] Determining a first distance between a submarine cable fault point and an underwater sound collection device according to the first moment and the second moment;

[0008] The position of the submarine cable fault point is determined according to the first distance.

[0009] In one embodiment, determining a first distance between a submarine cable fault point and an underwater sound collection device based on a first moment and a second moment includes: calculating a difference between the second moment and the first moment to obtain a first duration taken by a sound signal to reach the underwater sound collection device from the submarine cable fault point; and determining the first distance based on the first duration.

[0010] In one embodiment, determining a first distance between a submarine cable fault point and an underwater sound collection device based on a first moment and a second moment includes: obtaining a second distance between a pulse current inlet of the submarine cable and the submarine cable fault point; wherein the second distance is detected by an onshore time domain reflectometer; determining a second duration taken by the pulse power source to reach the submarine cable fault point from the pulse current inlet based on the second distance; determining a third duration taken by the sound signal to reach the underwater sound collection device from the submarine cable fault point based on the second moment, the first moment, and the second duration; and determining the first distance based on the third duration.

[0011] In one embodiment, the number of first distances is at least two; different first distances correspond to different hull positions; accordingly, the position of the submarine cable fault point is determined based on the first distances, including: for each hull position, constructing an arc with the position of the underwater sound collection device under the hull position as the center and the corresponding first distance as the radius; determining the position of the submarine cable fault point based on the intersection of the arcs corresponding to each hull position.

[0012] In one embodiment, obtaining the second moment when the sound signal generated by the pulse current discharging at the fault point of the submarine cable reaches the underwater sound collection device on board the ship includes: when the underwater sound collection device collects the sound signal, obtaining the second moment through the shipboard satellite clock synchronization module.

[0013] In one embodiment, obtaining the first moment when the onshore pulse power supply transmits a pulse current to the submarine cable includes: receiving the first moment sent by the onshore communication module; wherein the onshore communication module is used to obtain the first moment through the onshore satellite clock synchronization module when the onshore pulse power supply transmits a pulse current to the submarine cable.

[0014] In a second aspect, the present application further provides a submarine cable fault location device, which is configured on a shipboard computing device and includes:

[0015] A first acquisition module is used to obtain the first moment when the shore pulse power supply transmits a pulse current to the submarine cable;

[0016] The second acquisition module is used to obtain the second moment when the sound signal generated by the pulse current discharged at the fault point of the submarine cable reaches the underwater sound collection device on board the ship;

[0017] A first determining module is used to determine a first distance between the submarine cable fault point and the underwater sound collection device according to the first moment and the second moment;

[0018] The second determining module is used to determine the location of the submarine cable fault point according to the first distance.

[0019] In a third aspect, the present application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the method provided in the first aspect when executing the computer program.

[0020] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which implements the method provided in the first aspect when the computer program is executed by a processor.

[0021] In a fifth aspect, the present application also provides a computer program product, comprising a computer program, which implements the method provided in the first aspect when executed by a processor.

[0022] In the above-mentioned method, device, equipment, medium and product for locating the fault point of a submarine cable, the onshore pulse power supply transmits a pulse current to the submarine cable, and the moment when the onshore pulse power supply transmits the pulse current is taken as the first moment; the pulse current discharges at the fault point of the submarine cable to generate a sound signal, and the moment when the underwater sound collection device collects the sound signal is taken as the second moment; the position of the submarine cable fault point can be quickly determined by the first moment and the second moment. Although the electromagnetic signal of the pulse current can be transmitted over a long distance in the submarine cable, it is not easy to detect the electromagnetic signal in seawater, while the sound signal is easy to be detected in seawater. Therefore, the present application generates a pulse current to the submarine cable through the onshore pulse power supply, but does not detect the electromagnetic signal, but detects the sound signal emitted by the pulse current discharged at the fault point of the submarine cable, that is, adopts a combined acoustic and magnetic method, which can improve the accuracy and reliability of the submarine cable fault location. It can be seen that the present application can achieve efficient and high-precision submarine cable fault location in a marine environment without network signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments of the present application or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of an application scenario of an embodiment;

[0025] Figure 2 Schematic diagram of the structure of shipboard equipment in one embodiment;

[0026] Figure 3 Schematic diagram of the structure of onshore equipment in one embodiment;

[0027] Figure 4 1 is a flow chart of a method for locating a submarine cable fault in one embodiment;

[0028] Figure 5 1 is a flow chart of a first distance determination step in one embodiment;

[0029] Figure 6 1 is a flow chart of a first distance determination step in one embodiment;

[0030] Figure 7A 1 is a flow chart of a step of determining the location of a submarine cable fault point in one embodiment;

[0031] Figure 7B A schematic diagram of determining a submarine cable fault point in one embodiment;

[0032] Figure 81 is a structural block diagram of a submarine cable fault locating device according to an embodiment;

[0033] Figure 9 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0035] Figure 1 This diagram illustrates a scenario for locating a submarine cable fault in one embodiment. This scenario involves both shipboard and shore-based equipment, both of which achieve clock synchronization using Beidou satellite technology. The shore-based equipment can send information to the shipboard equipment via Beidou short messages or the 4G (fourth-generation mobile communication technology) network, such as the first moment described below. Submarine cable fault location is achieved using both the shipboard and shore-based equipment.

[0036] Of course, the shore equipment can also send information to the shipboard equipment through other communication technologies, which are not limited here.

[0037] See also Figure 2 The onboard equipment includes a shipboard satellite clock synchronization module, a first communication and information processing module, a data acquisition module, an underwater sound acquisition device and a computer; wherein:

[0038] The shipborne satellite clock synchronization module is used to receive Beidou satellite signals through the satellite antenna and output serial time information and synchronization pulse signals to the first communication and information processing module; wherein the serial time information is clock information; the synchronization pulse signal is a periodically triggered pulse signal, which is used to trigger the first communication and information processing module to perform clock alignment operations with the shipborne satellite clock synchronization module.

[0039] The first communication and information processing module is used to perform clock alignment operations according to serial time information when receiving a synchronization pulse signal; and is also used to receive the first moment sent by the onshore equipment.

[0040] The underwater sound collection device includes an underwater sound sensor and a data collection module. The underwater sound sensor is used to send the sound signal to the data collection module when sensing a sound signal; the data collection module is used to obtain time information when receiving the sound signal, thereby obtaining the time when the sound signal reaches the underwater sound sensor, that is, the second time.

[0041] The computer is used to determine the location of the submarine cable fault point according to the first moment and the second moment.

[0042] See also Figure 3 The onshore equipment includes an onshore satellite clock synchronization module, a pulse power supply, an external trigger time synchronization module, and a second communication and information processing module, wherein:

[0043] The onshore satellite clock synchronization module is used to receive Beidou satellite signals through the satellite antenna and output serial time information and synchronization pulse signals to the external trigger time synchronization module; the serial time information is clock information; the synchronization pulse signal is a periodically triggered pulse signal, which is used to trigger the external trigger time synchronization module to perform clock alignment operations with the onshore satellite clock synchronization module.

[0044] The external trigger time synchronization module is used to perform clock alignment operations according to the serial time information when a synchronization pulse signal is received.

[0045] The pulse power supply is used to transmit a pulse current to the submarine cable, and at the same time generate a trigger signal to the external trigger time synchronization module when transmitting the pulse current, so that the external trigger time synchronization module determines the time information when receiving the trigger signal, obtains the first time when the onshore pulse power supply transmits the pulse current to the submarine cable, and sends the first time to the second communication and information processing module.

[0046] The second communication and information processing module is used to send the first moment to the onboard equipment.

[0047] In an exemplary embodiment, a method for locating a submarine cable fault is provided. The method is applied to a shipboard computing device. The shipboard computing device may be, but is not limited to, the above-mentioned Figure 2 Computer in.

[0048] See also Figure 4 ,The methods for locating submarine cable faults include:

[0049] S410, obtaining the first moment when the onshore pulse power supply transmits a pulse current to the submarine cable.

[0050] Among them, pulse current is an electromagnetic signal.

[0051] In an optional implementation, S410 may include: receiving a first moment sent by an onshore communication module; wherein the onshore communication module is used to obtain the first moment through an onshore satellite clock synchronization module when an onshore pulse power supply sends a pulse current to the submarine cable.

[0052] Among them, the onshore communication module can be the above-mentioned second communication and information processing module.

[0053] For example, the shore-based pulse power supply transmits a pulse current to the submarine cable. Simultaneously, the shore-based pulse power supply generates a trigger signal to the external trigger time synchronization module. Upon receiving the trigger signal, the external trigger time synchronization module determines the first moment at which the shore-based pulse power supply transmits the pulse current to the submarine cable and transmits the first moment to the second communication and information processing module. The second communication and information processing module transmits the first moment to the onboard equipment. The first communication and information processing module in the onboard equipment receives the first moment and transmits it to the computer.

[0054] It is understandable that since the onshore equipment has an onshore satellite clock synchronization module, the time accuracy of the onshore equipment can be guaranteed, thereby ensuring the accuracy of the first moment and further ensuring the accuracy of the fault location.

[0055] It is understandable that the electromagnetic signal of the pulse current has the characteristic of long-distance transmission in the submarine cable, and can be obtained through the shore pulse power supply, which is relatively easy to obtain.

[0056] S420, obtaining the second moment when the sound signal generated by the pulse current discharged at the fault point of the submarine cable reaches the underwater sound collection device on board the ship.

[0057] In an optional implementation, S420 may include: when the underwater sound collection device collects the sound signal, obtaining a second moment through the shipborne satellite clock synchronization module.

[0058] For example, a pulse current discharges at a submarine cable fault point, generating a sound signal. This sound signal propagates underwater and is sensed by an underwater sound sensor in the underwater sound collection device. The sensed sound signal is then transmitted to the data collection module. Upon receiving the sound signal, the data collection module obtains precise time information, namely the second moment, from the first communication and information processing module, uses the second moment as the moment when the sound signal arrived at the underwater sound sensor, and transmits the second moment to the computer.

[0059] It is understandable that, since the onboard equipment is equipped with a shipboard satellite clock synchronization module, the time accuracy of the onboard equipment can be guaranteed, thereby ensuring the accuracy of the second moment and further ensuring the accuracy of the fault location.

[0060] S430: Determine a first distance between the submarine cable fault point and the underwater sound collection device according to the first moment and the second moment.

[0061] The first distance between the fault point of the submarine cable and the underwater sound collection device can be understood as the distance between the fault point of the submarine cable and the underwater sound sensor.

[0062] S440: Determine the location of the submarine cable fault point according to the first distance.

[0063] That is, after obtaining the distance between the submarine cable fault point and the underwater sound sensor, since the position of the underwater sound sensor is known, the position of the submarine cable fault point can be determined, thereby achieving the positioning of the submarine cable fault.

[0064] In the above-mentioned method for locating the fault point of a submarine cable, the onshore pulse power supply transmits a pulse current to the submarine cable, and the moment when the onshore pulse power supply transmits the pulse current is taken as the first moment; the pulse current discharges at the fault point of the submarine cable to generate a sound signal, and the moment when the underwater sound collection device collects the sound signal is taken as the second moment; the position of the submarine cable fault point can be quickly determined by the first moment and the second moment. Although the electromagnetic signal of the pulse current can be transmitted over a long distance in the submarine cable, it is not easy to detect the electromagnetic signal in seawater, while the sound signal is easy to detect in seawater. Therefore, this embodiment generates a pulse current to the submarine cable through the onshore pulse power supply, but does not detect the electromagnetic signal, but detects the sound signal emitted by the pulse current discharged at the fault point of the submarine cable, that is, the combination of acoustic and magnetic methods can improve the accuracy and reliability of the submarine cable fault location. It can be seen that this embodiment can achieve efficient and high-precision submarine cable fault location in a marine environment without network signals.

[0065] Based on the technical solutions of the above embodiments, an optional embodiment is provided. In this optional embodiment, the first distance determination step in S430 is refined.

[0066] See also Figure 5 , the first distance determination step includes:

[0067] S510, calculating the difference between the second moment and the first moment to obtain a first duration taken by the sound signal to reach the underwater sound collection device from the fault point of the submarine cable.

[0068] It's understandable that the propagation speed of pulse current in a submarine cable is approximately 172 meters per microsecond, while the propagation speed of sound signals in seawater is approximately 1500 meters per second. This makes the propagation speed of pulse current a million times faster than that of sound signals. Therefore, the first moment the onshore pulse power source sends the pulse current can be roughly considered the moment the pulse current reaches the submarine cable fault point. Therefore, the difference between the second moment and the first moment is the time it takes for the sound signal to travel from the submarine cable fault point to the underwater sound collection device, i.e., the first duration.

[0069] S520: Determine a first distance according to the first duration.

[0070] It is understandable that the propagation speed of the sound signal in seawater is known. After obtaining the first duration, the distance between the fault point of the submarine cable and the underwater sound collection device, that is, the first distance, can be determined based on the first duration and the propagation speed of the sound signal in seawater.

[0071] It can be seen that through the above S510 and S520, the first distance can be quickly determined, which helps to quickly locate the submarine cable fault.

[0072] Based on the technical solutions of the above embodiments, an optional embodiment is provided. In this optional embodiment, the first distance determination step in S430 is refined.

[0073] See also Figure 6 , the first distance determination step includes:

[0074] S610, obtaining a second distance between a pulse current inlet of the submarine cable and a fault point of the submarine cable; wherein the second distance is obtained by detecting a shore time domain reflectometer.

[0075] Among them, the onshore time domain reflectometer and the onshore pulse power supply are set at the same location.

[0076] Among them, the function of the onshore time domain reflectometer is to detect the distance between the pulse current entrance of the submarine cable and the fault point of the submarine cable, that is, the second distance.

[0077] S620: Determine a second time duration for the pulse power source to reach the submarine cable fault point from the pulse current inlet according to the second distance.

[0078] It is understandable that the propagation speed of the pulse current in the submarine cable is known. According to the second distance and the propagation speed of the pulse current in the submarine cable, the time taken by the pulse power supply to reach the submarine cable fault point from the pulse current entrance can be determined, that is, the second time.

[0079] S630: Determine a third time duration for the sound signal to reach the underwater sound collection device from the submarine cable fault point based on the second moment, the first moment, and the second time duration.

[0080] It can be understood that by subtracting the first moment from the second moment and then subtracting the second time duration, we can get the time duration it takes for the sound signal to reach the underwater sound collection device from the fault point of the submarine cable, that is, the third time duration.

[0081] S640: Determine a first distance based on the third duration.

[0082] It is understandable that the propagation speed of the sound signal in seawater is known. After obtaining the third time duration, the distance between the fault point of the submarine cable and the underwater sound collection device, that is, the first distance, can be determined based on the third time duration and the propagation speed of the sound signal in seawater.

[0083] It can be seen that the above process takes into account the second time taken by the pulse power supply to reach the submarine cable fault point from the pulse current entrance, and can obtain an accurate first distance, which is helpful to accurately locate the submarine cable fault.

[0084] Based on the technical solutions of the above embodiments, an optional embodiment is also provided. In this optional embodiment, the hull position is changed multiple times. After each change of the hull position, S410 to S430 are executed once, and the step of determining the location of the submarine cable fault point in S440 is refined.

[0085] See also Figure 7A ,The steps for determining the location of the submarine cable fault point include:

[0086] S710: For each hull position, construct an arc with the position of the underwater sound collecting device under the hull position as the center and the corresponding first distance as the radius.

[0087] S720: Determine the position of the submarine cable fault point based on the intersection of the arcs corresponding to the positions of the hulls.

[0088] Among them, taking the position of the underwater sound collecting device as the center of the circle can be understood as taking the position of the underwater sound sensor as the center of the circle.

[0089] It is understandable that each time the hull position is changed, the position of the underwater sound sensor changes, and a first distance is obtained after executing S410 to S430. Due to multiple changes in the hull position, multiple first distances can be obtained, and different first distances correspond to different hull positions.

[0090] It can be understood that an arc is constructed with each position of the underwater sound collection device as the center and the corresponding first distance as the radius. Since the hull position is changed multiple times, multiple arcs can be constructed, and the intersection of each arc is used as the position of the submarine cable fault point.

[0091] For example, see Figure 7B The second distance between the pulse current entrance and the submarine cable fault point detected by the shore time domain reflectometer is L0, and the propagation speed of the pulse current in the submarine cable is v0. Therefore, the second time required for the pulse current to reach the submarine cable fault point from the pulse current entrance is t0=L0 / v0. The first moment when the shore pulse power supply sends the pulse current is t, and the second moment when the underwater sound sensor senses the sound signal is tx. Therefore, the third time is =tx-t-t0. After multiple changes in the hull position, each time the hull position is changed, a third time length is calculated according to the above method. , thus calculating the first distance based on the third duration and the propagation speed of the sound signal in seawater. For example, if the ship changes position three times, the underwater sound sensor also changes positions three times: Position 1, Position 2, and Position 3, resulting in three first distances: L1, L2, and L3. Using the position of the underwater sound sensor after each change of the ship's position as the center and the corresponding first distance as the radius, an arc is constructed. The intersection of these three arcs is used as the location of the submarine cable fault.

[0092] It can be seen that by changing the hull position multiple times and taking the intersection of each arc as the position of the submarine cable fault point, the accuracy of the submarine cable fault location can be improved.

[0093] It should be understood that, although the steps in the flowcharts of the above embodiments are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the flowcharts of the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily to be performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0094] Based on the same inventive concept, embodiments of the present application further provide a submarine cable fault locating device for implementing the aforementioned method for locating a submarine cable fault. The solution provided by this device is similar to the solution described in the aforementioned method. Therefore, the specific limitations of one or more of the following embodiments of the submarine cable fault locating device can be found in the aforementioned limitations of the method for locating a submarine cable fault, and will not be further elaborated here.

[0095] In one embodiment, a device for locating a fault point in a submarine cable is provided, which is configured on a shipboard computing device. Figure 8 The submarine cable fault location device includes: a first acquisition module 810, a second acquisition module 820, a first determination module 830 and a second determination module 840; wherein:

[0096] A first acquisition module 810 is configured to acquire the first moment when the onshore pulse power source transmits a pulse current to the submarine cable;

[0097] The second acquisition module 820 is used to obtain the second moment when the sound signal generated by the pulse current discharged at the fault point of the submarine cable reaches the underwater sound collection device on board the ship;

[0098] A first determining module 830 is configured to determine a first distance between the submarine cable fault point and the underwater sound collection device based on the first moment and the second moment;

[0099] The second determining module 840 is configured to determine the location of the submarine cable fault point according to the first distance.

[0100] In one embodiment, the first determination module is specifically used to: calculate the difference between the second moment and the first moment to obtain the first time length used by the sound signal to reach the underwater sound collection device from the submarine cable fault point; and determine the first distance based on the first time length.

[0101] In one embodiment, the first determination module is specifically used to: obtain a second distance between the pulse current inlet of the submarine cable and the fault point of the submarine cable; wherein the second distance is detected by an onshore time domain reflectometer; based on the second distance, determine the second time taken for the pulse power supply to reach the fault point of the submarine cable from the pulse current inlet; based on the second moment, the first moment and the second time, determine the third time taken for the sound signal to reach the underwater sound collection device from the fault point of the submarine cable; and determine the first distance based on the third time.

[0102] In one embodiment, the number of the first distances is at least two; different first distances correspond to different hull positions; accordingly, the second determination module is specifically used to: for each hull position, construct an arc with the position of the underwater sound collection device under the hull position as the center and the corresponding first distance as the radius; determine the position of the submarine cable fault point according to the intersection of the arcs corresponding to each hull position.

[0103] In one embodiment, the second acquisition module is specifically configured to: acquire the second moment through the shipborne satellite clock synchronization module when the underwater sound collection device collects the sound signal.

[0104] In one embodiment, the first acquisition module is specifically used to: receive the first moment sent by the onshore communication module; wherein the onshore communication module is used to obtain the first moment through the onshore satellite clock synchronization module when the onshore pulse power supply sends a pulse current to the submarine cable.

[0105] Each module in the above-mentioned submarine cable fault location device can be implemented in whole or in part through software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the corresponding operations of each module.

[0106] In an exemplary embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as shown in FIG. Figure 9As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, abbreviated as I / O) and a communication interface. The processor, memory and input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The database of the computer device is used to store relevant data. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a method for locating a submarine cable fault is implemented.

[0107] Those skilled in the art will understand that Figure 9 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0108] In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0109] Obtain the first moment when the shore pulse power supply transmits a pulse current to the submarine cable;

[0110] Acquire the second moment when the sound signal generated by the pulse current discharged at the fault point of the submarine cable reaches the underwater sound collection device on board the ship;

[0111] Determining a first distance between a submarine cable fault point and an underwater sound collection device according to the first moment and the second moment;

[0112] The position of the submarine cable fault point is determined according to the first distance.

[0113] In one embodiment, the steps implemented when the processor executes the computer program include determining a first distance between a submarine cable fault point and an underwater sound collection device based on a first moment and a second moment, including: calculating a difference between the second moment and the first moment to obtain a first duration taken by the sound signal to reach the underwater sound collection device from the submarine cable fault point; and determining the first distance based on the first duration.

[0114] In one embodiment, the steps implemented when the processor executes the computer program include determining a first distance between a submarine cable fault point and an underwater sound collection device based on a first moment and a second moment, and include: obtaining a second distance between a pulse current inlet of the submarine cable and the submarine cable fault point; wherein the second distance is detected by an onshore time domain reflectometer; determining a second duration taken by the pulse power source to reach the submarine cable fault point from the pulse current inlet based on the second distance; determining a third duration taken by the sound signal to reach the underwater sound collection device from the submarine cable fault point based on the second moment, the first moment, and the second duration; and determining the first distance based on the third duration.

[0115] In one embodiment, the number of the first distances is at least two; different first distances correspond to different hull positions; accordingly, the steps implemented when the processor executes the computer program to determine the location of the submarine cable fault point based on the first distances include: for each hull position, constructing an arc with the position of the underwater sound collection device under the hull position as the center and the corresponding first distance as the radius; determining the location of the submarine cable fault point based on the intersection of the arcs corresponding to each hull position.

[0116] In one embodiment, the steps implemented when the processor executes the computer program to obtain the second moment when the sound signal generated by the pulse current discharging at the fault point of the submarine cable reaches the underwater sound collection device on the ship include: when the underwater sound collection device collects the sound signal, obtaining the second moment through the shipboard satellite clock synchronization module.

[0117] In one embodiment, the steps implemented when the processor executes the computer program to obtain the first moment when the onshore pulse power supply transmits a pulse current to the submarine cable include: receiving the first moment sent by the onshore communication module; wherein the onshore communication module is used to obtain the first moment through the onshore satellite clock synchronization module when the onshore pulse power supply sends a pulse current to the submarine cable.

[0118] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0119] Obtain the first moment when the shore pulse power supply transmits a pulse current to the submarine cable;

[0120] Acquire the second moment when the sound signal generated by the pulse current discharged at the fault point of the submarine cable reaches the underwater sound collection device on board the ship;

[0121] Determining a first distance between a submarine cable fault point and an underwater sound collection device according to the first moment and the second moment;

[0122] The position of the submarine cable fault point is determined according to the first distance.

[0123] In one embodiment, the steps implemented when the computer program is executed by the processor to determine the first distance between the submarine cable fault point and the underwater sound collection device based on the first moment and the second moment include: calculating the difference between the second moment and the first moment to obtain the first time duration for the sound signal to reach the underwater sound collection device from the submarine cable fault point; and determining the first distance based on the first time duration.

[0124] In one embodiment, the steps implemented when the computer program is executed by the processor include determining a first distance between a submarine cable fault point and an underwater sound collection device based on a first moment and a second moment, and include: obtaining a second distance between a pulse current inlet of the submarine cable and the submarine cable fault point; wherein the second distance is detected by an onshore time domain reflectometer; determining a second duration taken by the pulse power source to reach the submarine cable fault point from the pulse current inlet based on the second distance; determining a third duration taken by the sound signal to reach the underwater sound collection device from the submarine cable fault point based on the second moment, the first moment, and the second duration; and determining the first distance based on the third duration.

[0125] In one embodiment, the number of the first distances is at least two; different first distances correspond to different hull positions; accordingly, the steps implemented when the computer program is executed by the processor to determine the location of the submarine cable fault point based on the first distances include: for each hull position, constructing an arc with the position of the underwater sound collection device under the hull position as the center and the corresponding first distance as the radius; determining the location of the submarine cable fault point based on the intersection of the arcs corresponding to each hull position.

[0126] In one embodiment, the steps implemented when the computer program is executed by the processor to obtain the second moment when the sound signal generated by the pulse current discharging at the fault point of the submarine cable reaches the underwater sound collection device on the ship include: when the underwater sound collection device collects the sound signal, obtaining the second moment through the shipboard satellite clock synchronization module.

[0127] In one embodiment, the steps implemented when the computer program is executed by the processor to obtain the first moment when the onshore pulse power supply transmits a pulse current to the submarine cable include: receiving the first moment sent by the onshore communication module; wherein the onshore communication module is used to obtain the first moment through the onshore satellite clock synchronization module when the onshore pulse power supply sends a pulse current to the submarine cable.

[0128] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0129] Obtain the first moment when the shore pulse power supply transmits a pulse current to the submarine cable;

[0130] Acquire the second moment when the sound signal generated by the pulse current discharged at the fault point of the submarine cable reaches the underwater sound collection device on board the ship;

[0131] Determining a first distance between a submarine cable fault point and an underwater sound collection device according to the first moment and the second moment;

[0132] The position of the submarine cable fault point is determined according to the first distance.

[0133] In one embodiment, the steps implemented when the computer program is executed by the processor to determine the first distance between the submarine cable fault point and the underwater sound collection device based on the first moment and the second moment include: calculating the difference between the second moment and the first moment to obtain the first time duration for the sound signal to reach the underwater sound collection device from the submarine cable fault point; and determining the first distance based on the first time duration.

[0134] In one embodiment, the steps implemented when the computer program is executed by the processor include determining a first distance between a submarine cable fault point and an underwater sound collection device based on a first moment and a second moment, and include: obtaining a second distance between a pulse current inlet of the submarine cable and the submarine cable fault point; wherein the second distance is detected by an onshore time domain reflectometer; determining a second duration taken by the pulse power source to reach the submarine cable fault point from the pulse current inlet based on the second distance; determining a third duration taken by the sound signal to reach the underwater sound collection device from the submarine cable fault point based on the second moment, the first moment, and the second duration; and determining the first distance based on the third duration.

[0135] In one embodiment, the number of the first distances is at least two; different first distances correspond to different hull positions; accordingly, the steps implemented when the computer program is executed by the processor to determine the location of the submarine cable fault point based on the first distances include: for each hull position, constructing an arc with the position of the underwater sound collection device under the hull position as the center and the corresponding first distance as the radius; determining the location of the submarine cable fault point based on the intersection of the arcs corresponding to each hull position.

[0136] In one embodiment, the steps implemented when the computer program is executed by the processor to obtain the second moment when the sound signal generated by the pulse current discharging at the fault point of the submarine cable reaches the underwater sound collection device on the ship include: when the underwater sound collection device collects the sound signal, obtaining the second moment through the shipboard satellite clock synchronization module.

[0137] In one embodiment, the steps implemented when the computer program is executed by the processor to obtain the first moment when the onshore pulse power supply transmits a pulse current to the submarine cable include: receiving the first moment sent by the onshore communication module; wherein the onshore communication module is used to obtain the first moment through the onshore satellite clock synchronization module when the onshore pulse power supply sends a pulse current to the submarine cable.

[0138] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0139] Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, database or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the various embodiments provided herein may be, but are not limited to, general-purpose processors, central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), quantum computing-based data processing logic devices, artificial intelligence (AI) processors, and the like.

[0140] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above 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 application.

[0141] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A method for locating a submarine cable fault, characterized in that: Applied to a shipboard computing device, the method includes: Obtain the first moment when the shore pulse power supply transmits a pulse current to the submarine cable; Obtaining a second moment when a sound signal generated by the pulse current discharging at the fault point of the submarine cable reaches an underwater sound collection device on board a ship; Determining a first distance between the submarine cable fault point and the underwater sound collection device according to the first moment and the second moment; The position of the submarine cable fault point is determined according to the first distance.

2. The method according to claim 1, characterized in that The determining, based on the first moment and the second moment, a first distance between the submarine cable fault point and the underwater sound collecting device includes: Calculating the difference between the second moment and the first moment to obtain a first duration taken by the sound signal to reach the underwater sound collection device from the submarine cable fault point; The first distance is determined according to the first duration.

3. The method according to claim 1, characterized in that The determining, based on the first moment and the second moment, a first distance between the submarine cable fault point and the underwater sound collecting device includes: Obtaining a second distance between a pulse current inlet of the submarine cable and a fault point of the submarine cable; wherein the second distance is obtained by detecting a shore time domain reflectometer; Determining a second time taken by the pulse power source to reach the submarine cable fault point from the pulse current inlet according to the second distance; Determining a third time duration for the sound signal to reach the underwater sound collection device from the submarine cable fault point based on the second moment, the first moment, and the second time duration; The first distance is determined according to the third duration.

4. The method according to claim 1, wherein The number of the first distances is at least two; different first distances correspond to different ship positions; accordingly, determining the position of the submarine cable fault point based on the first distances includes: For each hull position, construct an arc with the position of the underwater sound collecting device at the hull position as the center and the corresponding first distance as the radius; The position of the submarine cable fault point is determined according to the intersection of the arcs corresponding to the positions of the hulls.

5. The method according to claim 1, wherein The obtaining of the second moment when the sound signal generated by the pulse current discharging at the fault point of the submarine cable reaches the underwater sound collection device on board the ship includes: When the underwater sound collection device collects the sound signal, the second moment is acquired through the shipborne satellite clock synchronization module.

6. The method according to claim 1, characterized in that The step of obtaining the first moment when the onshore pulse power source transmits a pulse current to the submarine cable comprises: Receive the first moment sent by the shore communication module; wherein, the shore communication module is used to obtain the first moment through the shore satellite clock synchronization module when the shore pulse power supply sends a pulse current to the submarine cable.

7. A submarine cable fault location device, characterized in that: A computing device configured on board a ship, the device comprising: A first acquisition module is used to obtain the first moment when the shore pulse power supply transmits a pulse current to the submarine cable; A second acquisition module is used to obtain a second moment when the sound signal generated by the pulse current discharged at the fault point of the submarine cable reaches the underwater sound collection device on board the ship; A first determining module is configured to determine a first distance between the submarine cable fault point and the underwater sound collecting device according to the first moment and the second moment; The second determining module is configured to determine the location of the submarine cable fault point according to the first distance.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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