CN217902039U - Submarine cable burial depth detection system - Google Patents

Submarine cable burial depth detection system Download PDF

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Publication number
CN217902039U
CN217902039U CN202221814880.2U CN202221814880U CN217902039U CN 217902039 U CN217902039 U CN 217902039U CN 202221814880 U CN202221814880 U CN 202221814880U CN 217902039 U CN217902039 U CN 217902039U
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depth
submarine cable
sound wave
wave signal
signal generator
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王磊
陈科新
姜明武
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Suzhou Guangge Technology Co Ltd
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Suzhou Guangge Technology Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/30—Assessment of water resources

Abstract

The application relates to a submarine cable burial depth detection system. The system comprises: the depth finder is arranged in the water equipment and used for detecting the depth of the seabed; the sound wave signal generator and the depth finder are arranged in the water equipment and are used for transmitting a first sound wave signal with a preset frequency and recording sound wave data of the first sound wave signal; and the data processing device is connected with the depth finder, the sound wave signal generator and the sensing optical fiber arranged in the submarine cable and is used for receiving the seabed depth sent by the depth finder and the sound wave data sent by the sound wave signal generator. By adopting the method, various devices do not need to be operated under water, and data acquisition is directly realized through the depth finder and the sound wave signal generator, so that the operation of the submarine cable buried depth detection system is simple. In addition, because the submarine cable buried depth detecting system provided by the application does not need to operate various devices underwater, the cost of the submarine cable buried depth detecting system is reduced.

Description

Submarine cable burial depth detection system
Technical Field
The application relates to the technical field of submarine cable detection, in particular to a submarine cable burial depth detection system.
Background
Submarine cables (namely submarine cables) are generally protected by deep burying in the laying process, but the burying depth (namely burying depth) of the submarine cables can change along with the factors such as time lapse, external ocean current scouring and the like. When the buried depth of the submarine cable is continuously reduced and even the submarine cable is exposed on the seabed, the submarine cable is easily damaged by external force, so that the buried depth of the submarine cable needs to be continuously detected.
In the conventional technology, the underwater robot carrying the camera can acquire the peripheral influence of the submarine cable, determine the exposed condition of the submarine cable, shoot the region of the exposed submarine cable, adopt sonar to transmit sound wave signals to determine the position of the submarine cable, adopt a magnetic field sensor to receive magnetic field signals around the submarine cable, acquire induced electromotive force in the magnetic field signals, and determine the burial depth of the submarine cable according to the electromagnetic attenuation rule. However, when the traditional technology is adopted to detect the buried depth of the submarine cable, various underwater devices need to be operated, so that the operation of the submarine cable buried depth detection method is complex.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a submarine cable burial depth detection system which is simple to operate.
The application provides a submarine cable buried depth detecting system, the system includes:
the depth finder is arranged in the water equipment and used for detecting the depth of the seabed;
the sound wave signal generator and the depth finder are arranged in the water equipment and are used for transmitting a first sound wave signal with preset frequency and recording sound wave data of the first sound wave signal;
and the data processing device is connected with the depth finder, the sound wave signal generator and the sensing optical fiber arranged in the submarine cable and is used for receiving the seabed depth sent by the depth finder and the sound wave data sent by the sound wave signal generator.
In one embodiment, the depth finder and the sound wave signal generator are arranged at the bottom of the water equipment.
In one embodiment, the data processing apparatus includes:
and the time synchronization device is respectively connected with the depth finder and the sound wave signal generator and is used for timing the depth finder, the sound wave signal generator and the data processing device.
In one embodiment, the data processing apparatus includes:
the optical fiber monitoring device is connected with the sound wave signal generator and the sensing optical fiber and used for receiving the sound wave data sent by the sound wave signal generator and monitoring the sound wave signals received by the sensing optical fiber;
and the control device is connected with the depth finder and the optical fiber monitoring device and is used for receiving the seabed depth sent by the depth finder and the sound wave data sent by the optical fiber monitoring device.
In one embodiment, the optical fiber monitoring device is connected with the sensing optical fiber at the landing position of the sensing optical fiber.
In one embodiment, the fiber monitoring device comprises: and the first positioning device is connected with the sound wave signal generator and used for receiving the sound wave data sent by the sound wave signal generator.
In one embodiment, the depth finder comprises a transmitting transducer, a receiving transducer and a depth measuring device;
the transmitting transducer is used for transmitting a second sound wave signal;
the receiving transducer is arranged opposite to the transmitting transducer and used for receiving the second acoustic wave signal;
and the sounding device is connected with the transmitting transducer and the receiving transducer and used for recording the time difference between the transmitting transducer transmitting the second sound wave signals and the receiving transducer receiving the second sound wave signals.
In one embodiment, the depth finder comprises: and the second positioning device is connected with the data processing device, is used for recording the first position information of the depth finder, is communicated with the data processing device, and sends the seabed depth to the data processing device.
In one embodiment, the depth sounder comprises any one of a sounding echo sounder, a heave compensated depth sounder, a towed depth sounder, a multi-beam depth sounder, and a dual-frequency depth sounder.
In one embodiment, the acoustic signal generator comprises: and the third positioning device is connected with the data processing device and used for recording second position information of the sound wave signal generator and sending the second position information to the data processing device.
According to the submarine cable buried depth detection system, the depth sounder and the acoustic signal generator are arranged in the same piece of water equipment, the depth sounder, the acoustic signal generator and the sensing optical fiber arranged in the submarine cable are connected with the data processing device, and the data processing device is used for receiving the seabed depth transmitted by the depth sounder and the acoustic data of the first acoustic signal transmitted by the acoustic signal generator; the submarine cable buried depth detection system can directly realize data acquisition through the depth finder and the sound wave signal generator without operating various devices underwater, so that the operation of the submarine cable buried depth detection system is simple. In addition, because the submarine cable buried depth detecting system provided by the application does not need to operate various devices underwater, the cost of the submarine cable buried depth detecting system is reduced.
Drawings
FIG. 1 is a block diagram of a submarine cable burial depth detection system in one embodiment;
FIG. 2 is a schematic flow chart of a submarine cable burial depth detection method according to an embodiment;
FIG. 3a is a schematic flow chart of a submarine cable burial depth detection method in another embodiment;
FIG. 3b is a schematic diagram of the submarine cable burial depth generating step according to one embodiment;
FIG. 4 is a block diagram of the structure of a submarine cable burial depth detection device in one embodiment;
FIG. 5 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "attached," "bottom," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Fig. 1 schematically shows a block diagram of a submarine cable burial depth detection system, which includes a depth finder 102, an acoustic signal generator 104, a data processing device 106 and a sensing fiber 108, as shown in fig. 1.
The depth finder 102 is a water depth measuring instrument suitable for a plurality of water areas such as rivers, lakes, reservoir channels, ports and docks, coastal areas, deep sea areas and the like. The depth finder 102 may include, but is not limited to, any one of a sounding echo sounder, a heave compensated depth finder, a towed depth finder, a multi-beam depth finder, and a dual-frequency depth finder. In one example, the depth finder may be provided in a marine facility, such as a vessel at the sea surface.
The acoustic signal generator 104 is an acoustic wave emitting device capable of emitting a tuned acoustic wave signal. In one example, the acoustic signal generator 104 emits acoustic waves having a frequency of 400 Hz to 1000 Hz and an intensity of 160 dB or more. The acoustic signal transmitted by the acoustic signal generator 104 may penetrate the sea floor and be received by the sensing fiber in the sea cable. The acoustic signal generator 104 may be located in the same piece of water equipment as the depth finder 102, for example, the acoustic signal generator 104 may be located at the bottom of the same boat as the depth finder 102.
The data processing device 106 is connected with the depth finder 102, the acoustic signal generator 104 and the sensing fiber 108 arranged in the sea cable. In one example, the depth finder 102, the acoustic signal generator 104, and the data processing device 106 are all disposed with a GPS device (Global Positioning System). The depth finder 102 may be in data communication with the data processing device 106 via a GPS device, and the acoustic signal generator 104 may be in data communication with the data processing device 106 via a GPS device. In another example, the data processing device 106 is physically connected to the sensing fiber 108 disposed in the sea cable on land, and the acoustic signal received by the sensing fiber can be directly monitored.
The sensing fiber 108 may include, but is not limited to, any of a passive-access (i.e., without power supply) undersea communication fiber and an undersea optical fiber. In one embodiment, the security of the submarine cable burial depth detection system can be improved by employing a passively accessed sensing fiber 108.
In particular, the depth finder 102 is provided in the same piece of water equipment as the acoustic signal generator 104. The depth of the sea floor is detected using the depth finder 102 and transmitted to the data processing device 106. Wherein the depth of the sea bed may be the distance between the depth finder 102 and the sea bed. In one example, the sounding device is used as an example to describe the process of detecting the depth of the sea bed by the sounding device 102: and transmitting sound waves through the echo sounding instrument, receiving the sound waves reflected by the seabed, and recording the starting time of transmitting the sound waves and the ending time of receiving the sound waves. A first time difference between the start time and the end time is determined. A first propagation velocity of the acoustic wave at the seafloor is determined from the frequency of the acoustic wave. And obtaining the seabed depth according to the first time difference and the first propagation speed.
The acoustic wave signal generator 104 is used for transmitting a first acoustic wave signal with a preset frequency to the sensing optical fiber 108, recording acoustic wave data of the first acoustic wave signal, and sending the acoustic wave data to the data processing device 106. Wherein the sound wave data may include, but is not limited to, at least one of emission time, emission position and sound wave frequency of the first sound wave signal.
The data processing device 106 receives the sea bed depth transmitted by the depth finder 102 and the acoustic data transmitted by the acoustic signal generator 104, and monitors the acoustic signal received by the sensing optical fiber 108. And processing the sound wave signals, determining a first sound wave signal from the sound wave signals, and acquiring the receiving time of the first sound wave signal. And carrying out operation processing on the sound wave data and the receiving time to determine the depth of the submarine cable. And carrying out operation processing on the depth of the seabed and the depth of the submarine cable to generate the burial depth of the submarine cable. Wherein the depth of the sea cable may be the distance between the acoustic signal generator 104 and the sea cable.
According to the submarine cable buried depth detection system, the depth finder and the acoustic signal generator are arranged in the same water device, the depth finder, the acoustic signal generator and the sensing optical fiber arranged in the submarine cable are connected with the data processing device, the data processing device is used for receiving the sea bed depth transmitted by the depth finder and the acoustic data of the first acoustic signal transmitted by the acoustic signal generator, processing the acoustic signal received by the optical fiber to determine the receiving time of the first acoustic signal, determining the submarine cable depth according to the acoustic data and the receiving time, and generating the buried depth of the submarine cable according to the sea bed depth and the submarine cable depth; the submarine cable buried depth detection system can obtain the depth of a seabed and the depth of a submarine cable and determine the buried depth of the submarine cable without operating various underwater devices through data communication between a depth finder, a sound wave signal generator and a data processing device, so that the operation of the submarine cable buried depth detection system is simple. In addition, because the submarine cable buried depth detecting system provided by the application does not need to operate various devices underwater, the cost of the submarine cable buried depth detecting system is reduced.
In one embodiment, the depth finder 102 is also configured to detect first position information corresponding to a depth of the sea floor. The acoustic wave data carries second position information corresponding to the first acoustic wave signal. The data processing device 106 is further configured to receive the first position information sent by the depth finder 102, obtain a corresponding set of seabed depth and acoustic data according to the first position information and the second position information, and determine a submarine cable depth corresponding to the seabed depth. A data processing device 106 for generating a burial depth of the submarine cable according to the depth of the seabed and the depth of the submarine cable, comprising: and the data processing device 106 is used for performing operation processing on the seabed depth and the submarine cable depth corresponding to the seabed depth to generate the buried depth of the submarine cable.
Wherein the first position information may include, but is not limited to, at least one of coordinates and a detection time of a position where the depth finder 102 is located when detecting the depth of the sea bed.
The second location information may include, but is not limited to, at least one of coordinates and a transmission time of a location where the acoustic signal generator 104 is located when transmitting the first acoustic signal.
Specifically, the data processing device 106 receives the seabed depth and the first position information corresponding to the seabed depth sent by the depth finder 102, and establishes an association relationship between the seabed depth and the first position information. And receiving the acoustic data carrying the second position information transmitted by the acoustic signal generator 104. And according to the first position information and the second position information, matching to obtain a group of seabed depth and sound wave data corresponding to the same position information, establishing an incidence relation between the submarine cable depth and the position information corresponding to the group of sound wave data, and determining the submarine cable depth under the same position information with the seabed depth. And carrying out operation processing on the seabed depth and the submarine cable depth corresponding to the seabed depth under the same position information to generate the burial depth of the submarine cable under the position information.
In one embodiment, the depth finder 102 includes a second positioning device connected to the data processing device 106 via the second positioning device, the second positioning device is configured to record the first position information of the depth finder 102 in real time, communicate with the data processing device 106, and send the seabed depth to the data processing device 106, wherein the second positioning device may be, but is not limited to, a GPS device.
In another embodiment, the acoustic signal generator 104 includes a third positioning device, which is connected to the data processing device 106 through the third positioning device, and is configured to record the second position information of the acoustic signal generator 104 in real time and send the second position information to the data processing device 106, wherein the third positioning device may be, but is not limited to, a GPS device.
In this embodiment, the submarine cable depth corresponding to the seabed depth is determined according to the position information between the seabed depth and the acoustic data, and the burial depth of the submarine cable under the position information is generated according to the seabed depth and the submarine cable depth corresponding to the seabed depth under the same position information, so that the accuracy of the submarine cable burial depth generated by the submarine cable burial depth detection system can be improved.
In one embodiment, the data processing apparatus 106 includes: and the time synchronizer is respectively connected with the depth finder 102 and the sound wave signal generator 104, and is used for timing the depth finder 102, the sound wave signal generator 104 and the data processing device 106 and controlling the depth finder 102, the sound wave signal generator 104 and the data processing device 106 to have the same time.
Specifically, GPS devices are provided in advance in the depth finder 102, the acoustic wave signal generator 104, and the data processing device 106. The initial time of the GPS device in the depth finder 102 is obtained by the GPS device in the data processing device 106 communicating with the depth finder 102, and the initial time of the GPS device in the depth finder 102 is set to be the same as the initial time of the GPS device in the data processing device 106. The initial time of the GPS device in the acoustic wave signal generator 104 is obtained by the GPS device in the data processing device 106 communicating with the acoustic wave signal generator 104, and the initial time of the GPS device in the acoustic wave signal generator 104 is set to be the same as the initial time of the GPS device in the data processing device 106.
In this embodiment, by controlling the depth finder, the acoustic signal generator, and the data processing device to have the same time, the time precision of the seabed data sent by the depth finder and the acoustic data sent by the acoustic signal generator received by the data processing device can be improved, so that the accuracy of submarine cable burial depth generation is improved.
In one embodiment, the acoustic data includes a preset frequency and a transmission time of the first acoustic signal. Data processing apparatus 106, comprising:
the optical fiber monitoring device is connected with the acoustic wave signal generator 104 and the sensing optical fiber 108, and is used for receiving the preset frequency and the transmitting time sent by the acoustic wave signal generator 104, demodulating the acoustic wave signal received by the sensing optical fiber 108 according to the preset frequency, determining a first acoustic wave signal from the acoustic wave signal, and recording the receiving time of the first acoustic wave signal.
And the control device is connected with the depth finder 102 and the optical fiber monitoring device and is used for receiving the seabed depth sent by the depth finder 102 and the preset frequency, the transmitting time and the receiving time sent by the optical fiber monitoring device, determining the depth of the submarine cable according to the preset frequency, the transmitting time and the receiving time, and generating the burial depth of the submarine cable according to the seabed depth and the submarine cable depth. In one example, the optical fiber monitoring device and the control device may be provided in the same device, or the optical fiber monitoring device and the control device may be provided in two separate devices.
Specifically, the optical fiber monitoring device is in data communication with the sound wave signal generator 104, and receives the preset frequency and the emission time of the first sound wave signal sent by the sound wave signal generator 104. The fiber monitoring device is connected to the sensing fiber 108 to monitor the acoustic signals received by the sensing fiber 108. The acoustic wave signals received by the sensing fiber 108 are demodulated according to a preset frequency, a first acoustic wave signal is determined from the acoustic wave signals, and a receiving time corresponding to the first acoustic wave signal is obtained. In one example, the fiber monitoring device is connected to the sensing fiber 108 at the landing of the sensing fiber 108 (i.e., the portion of the sensing fiber 108 that is in the land).
And the control device is in data communication with the depth finder 102 and the optical fiber monitoring device, and receives the seabed depth sent by the depth finder 102 and the preset frequency, the transmitting time and the receiving time sent by the optical fiber monitoring device. And determining a second propagation velocity of the first sound wave signal under the sea according to the preset frequency. And acquiring a second time difference between the transmitting time and the receiving time corresponding to the first sound wave signal. And performing operation processing on the second propagation speed and the second time difference to determine the depth of the submarine cable. And carrying out operation processing on the depth of the seabed and the depth of the submarine cable to generate the buried depth of the submarine cable.
In one embodiment, the fiber monitoring device includes a first positioning device connected to the acoustic signal generator for receiving the acoustic data transmitted by the acoustic signal generator. Wherein, the first positioning device can be but is not limited to adopt a GPS device.
In this embodiment, the optical fiber monitoring device receives the preset frequency and the preset emission time sent by the acoustic wave signal generator, and monitors the acoustic wave signal received by the sensing optical fiber. The first sound wave signal is determined from the sound wave signals according to the preset frequency, the accuracy of obtaining the receiving time of the first sound wave signal can be improved, the submarine cable depth is determined through the control device according to the preset frequency, the transmitting time and the receiving time, the accuracy of the determined submarine cable depth can be improved, and therefore the accuracy of the generated submarine cable buried depth is improved.
In one embodiment, the depth finder 102 includes a transmitting transducer, a receiving transducer, and a depth measurement device. And the transmitting transducer is used for transmitting the second acoustic wave signal. And the receiving transducer is arranged opposite to the transmitting transducer and is used for receiving the second acoustic wave signal. And the depth measuring device is respectively connected with the transmitting transducer and the receiving transducer and is used for recording the time difference between the transmitting transducer transmitting the second sound wave signal and the receiving transducer receiving the second sound wave signal, and the seabed depth is determined according to the time difference.
Specifically, the depth finder 102 transmits a second acoustic signal to the sea through the transmitting transducer in real time, the second acoustic signal is transmitted downwards until reaching the sea bed, the receiving transducer receives the second acoustic signal reflected by the sea bed, the depth finder records the time difference between the transmitting transducer transmitting the second acoustic signal and the receiving transducer receiving the second acoustic signal. And determining the propagation rate of the second acoustic signal according to the frequency of the second acoustic signal, and performing operation processing on the propagation rate and the time difference to determine the depth of the seabed. In one example, the second acoustic signal is a high frequency acoustic wave, and since the acoustic intensity of the high frequency acoustic wave gradually attenuates with the increase of the propagation distance, the second acoustic signal cannot penetrate through the sea bed and is reflected by the sea bed when reaching the surface of the sea bed. In this embodiment, the seabed depth is determined according to the time difference by recording the time difference between the transmission of the second sound wave signal by the transmission transducer and the reception of the second sound wave signal by the reception transducer, and the accuracy of determining the seabed depth can be improved.
In one embodiment, the depth finder 102 comprises any one of a sounding echo sounder, a heave compensated depth sounder, a towed depth sounder, a multi-beam depth sounder, and a dual frequency depth sounder.
In the embodiment, any one of the echo sounding instrument, the lifting compensation sounding instrument, the towed sounding instrument, the multi-beam sounding instrument and the dual-frequency sounding instrument is used as the sounding instrument to detect the depth of the seabed, so that the operation of seabed depth detection can be simplified, and the seabed depth detection efficiency is improved.
In an embodiment, as shown in fig. 2, a submarine cable burial depth detection method is provided, and this embodiment is illustrated by applying the method to a terminal, it is to be understood that the method may also be applied to a server, and may also be applied to a system including a terminal and a server, and is implemented by interaction between the terminal and the server. The terminal can be but not limited to various personal computers, notebook computers, smart phones, tablet computers, internet of things equipment and portable wearable equipment, and the internet of things equipment can be smart televisions, smart vehicle-mounted equipment and the like. The portable wearable device can be a smart watch, a smart bracelet, a head-mounted device, and the like. The server may be implemented as a stand-alone server or as a server cluster consisting of a plurality of servers.
In this embodiment, the method includes the steps of:
and S202, receiving the seabed depth sent by the depth finder.
And step S204, receiving the sound wave data sent by the sound wave signal generator.
Step S206, the sound wave signals received by the sensing optical fiber are processed, the receiving time of the first sound wave signals is determined, and the depth of the submarine cable is determined according to the sound wave data and the receiving time.
And S208, generating the buried depth of the submarine cable according to the depth of the seabed and the depth of the submarine cable.
The depth of the sea bed can be used for representing the distance between the depth sounder and the sea bed.
The sound wave data is obtained by recording a first sound wave signal with a preset frequency transmitted by the sound wave signal generator. The acoustic data may include, but is not limited to, a preset frequency, a transmission time, and a transmission location of the first acoustic signal. The sound wave signal generator and the depth sounder can be arranged in the same water device.
The sensing optical fiber is arranged in the submarine cable. In one example, the sensing fiber is a passive distributed fiber.
The sea cable depth may be used to characterize the distance between the sea cable and the acoustic signal generator.
The depth of the sea cable may be used to characterize the distance between the sea cable and the seabed.
Specifically, the terminal receives the sea bed depth sent by the depth finder and the sound wave data sent by the sound wave signal generator. The terminal monitors the acoustic wave signals received by the sensing optical fiber, processes the acoustic wave signals received by the sensing optical fiber, determines the first acoustic wave signals from the acoustic wave signals, and obtains the receiving time of the first acoustic wave signals. And performing operation processing on the sound wave data and the receiving time of the first sound wave signal to determine the depth of the submarine cable. And carrying out operation processing on the depth of the seabed and the depth of the submarine cable to generate the buried depth of the submarine cable.
According to the submarine cable buried depth detection method, the submarine depth transmitted by the depth finder and the sound wave data of the first sound wave signal transmitted by the sound wave signal generator are received, the sound wave signal received by the sensing optical fiber is processed, the receiving time of the first sound wave signal is determined, the submarine cable depth is determined according to the sound wave data and the receiving time, and the buried depth of the submarine cable is generated according to the submarine depth and the submarine cable depth; the submarine cable buried depth detection system can directly obtain the depth of a seabed and the depth of a submarine cable through a depth finder and a sound wave signal generator in the same overwater device without operating various devices underwater, and determines the buried depth of the submarine cable, so that the submarine cable buried depth detection system is simple to operate. In addition, due to the fact that various devices do not need to be operated underwater, the submarine cable buried depth detection method reduces cost.
In one embodiment, the acoustic data carries second position information corresponding to the first acoustic signal. The submarine cable buried depth detection method further comprises the following steps: receiving first position information which is sent by a depth finder and corresponds to the depth of the seabed; and obtaining a corresponding group of seabed depth and sound wave data according to the first position information and the second position information, and determining the submarine cable depth corresponding to the seabed depth. Step S208, generating the burial depth of the submarine cable according to the depth of the seabed and the depth of the submarine cable, and the method comprises the following steps: and performing operation processing on the seabed depth and the submarine cable depth corresponding to the seabed depth to generate the buried depth of the submarine cable.
Specifically, the terminal receives first position information corresponding to the depth of the seabed, which is sent by the depth finder. And establishing an association relation between the seabed depth and the first position information. And comparing the plurality of first position information with the plurality of second position information, determining seabed data and sound wave data which belong to the same first position information and second position information, and taking the seabed data and the sound wave data which belong to the same position information as a corresponding group of seabed depth and sound wave data. And establishing an incidence relation between the submarine cable depth and the position information corresponding to the group of sound wave data, and determining the submarine cable depth under the same position information as the seabed depth. And carrying out operation processing on the seabed depth and the submarine cable depth corresponding to the seabed depth under the same position information to generate the burial depth of the submarine cable under the position information.
In this embodiment, the submarine cable depth having the same position information as the seabed depth is determined according to the position information between the seabed depth and the acoustic data, and the burial depth of the submarine cable under the position information is generated according to the seabed depth and the submarine cable depth under the same position information, so that the accuracy of the submarine cable burial depth generated by the submarine cable burial depth detection system can be improved.
In one embodiment, the step of performing operation processing on the sea bed depth and the sea cable depth corresponding to the sea bed depth to generate the burial depth of the sea cable includes: comparing the submarine cable depths under the position information to determine the target submarine cable depth; and carrying out operation processing on the depth of the target submarine cable and the depth of the seabed corresponding to the depth of the target submarine cable to generate the buried depth of the submarine cable.
The target submarine cable depth can be used for representing the distance between the acoustic signal generator and the submarine cable when the acoustic signal generator is located right above the submarine cable.
Specifically, the terminal obtains the submarine cable depths under the position information, compares the submarine cable depths under the position information, and takes the submarine cable depth meeting the preset target condition as the target submarine cable depth. And acquiring the seabed depth corresponding to the target submarine cable depth, performing operation processing on the target submarine cable depth and the seabed depth corresponding to the target submarine cable depth, and taking the difference value between the target submarine cable depth and the seabed depth as the burial depth of the submarine cable. The preset target condition may be the shortest submarine cable depth obtained within a preset time, or the shortest submarine cable depth obtained within a preset range.
In this embodiment, the burial depth of the submarine cable is generated by determining the depth of the target submarine cable when the acoustic signal generator is located right above the submarine cable and according to the depth of the target submarine cable and the depth of the seabed corresponding to the depth of the target submarine cable, and the accuracy of the burial depth of the generated submarine cable can be improved.
In one embodiment, the acoustic signal comprises a preset frequency and a transmission time of the first acoustic signal. Step S204, receiving sound wave data sent by a sound wave signal generator; step S206, processing the acoustic signal received by the sensing optical fiber, determining the receiving time of the first acoustic signal, and determining the depth of the submarine cable according to the acoustic data and the receiving time, including: receiving preset frequency and transmitting time sent by the acoustic signal generator, demodulating the acoustic signal received by the sensing optical fiber according to the preset frequency, determining a first acoustic signal from the acoustic signal, recording the receiving time of the first acoustic signal, and determining the depth of the submarine cable according to the preset frequency, the transmitting time and the receiving time.
Specifically, the terminal receives preset frequency and emission time sent by the sound wave signal generator, demodulates the sound wave signals received by the sensing optical fiber according to the preset frequency, determines a first sound wave signal from the sound wave signals, records the receiving time of the first sound wave signal, and determines a second propagation rate of the first sound wave signal under the sea according to the preset frequency. And acquiring a second time difference between the transmitting time and the receiving time corresponding to the first sound wave signal. And performing operation processing on the second propagation speed and the second time difference to determine the depth of the submarine cable.
In this embodiment, the acoustic wave signal received by the sensing optical fiber is demodulated according to the preset frequency of the first acoustic wave signal, the first acoustic wave signal is determined from the acoustic wave signal, the receiving time of the first acoustic wave signal is obtained, the submarine cable depth is determined according to the preset frequency, the transmitting time and the receiving time, the influence of interference acoustic waves generated by an external environment on the sensing optical fiber can be avoided, errors are reduced, the accuracy of the obtained submarine cable depth is improved, and therefore the accuracy of the generated submarine cable burial depth is improved.
In one embodiment, as shown in fig. 3a, there is provided a submarine cable burial depth detection method, including:
step S302, receiving the seabed depth sent by the depth finder and first position information corresponding to the seabed depth.
And step S304, receiving the preset frequency and the transmission time which are sent by the sound wave signal generator and carry the second position information.
Specifically, the terminal receives the sea bed depth and first position information corresponding to the sea bed depth, which are sent by the depth finder, and receives the preset frequency and the preset transmitting time which are sent by the sound wave signal generator and carry second position information. And establishing an association relation between the seabed depth and the first position information. Monitoring the sound wave signals received by the sensing optical fiber, demodulating the sound wave signals received by the sensing optical fiber according to preset frequency, determining a first sound wave signal from the sound wave signals, and recording the receiving time of the first sound wave signal.
Step S306, demodulating the sound wave signals received by the sensing optical fiber according to the preset frequency, determining a first sound wave signal from the sound wave signals, recording the receiving time of the first sound wave signal, and determining the depth of the submarine cable according to the preset frequency, the transmitting time and the receiving time.
And S308, obtaining a corresponding group of seabed depth and sound wave data according to the first position information and the second position information, and determining the submarine cable depth corresponding to the seabed depth.
S310, comparing the depths of the submarine cables under the position information to determine the depth of the target submarine cable, and performing operation processing on the depth of the target submarine cable and the depth of the seabed corresponding to the depth of the target submarine cable to generate the buried depth of the submarine cable.
Specifically, the terminal determines a second propagation rate of the first acoustic signal in the sea according to the preset frequency. And acquiring a second time difference between the transmitting time and the receiving time corresponding to the first sound wave signal. And performing operation processing on the second propagation speed and the second time difference to determine the depth of the submarine cable. And comparing the plurality of first position information with the plurality of second position information, determining seabed data and sound wave data which belong to the same first position information and second position information, and taking the seabed data and the sound wave data which belong to the same position information as a corresponding group of seabed depth and sound wave data. And establishing an incidence relation between the submarine cable depth and the position information corresponding to the group of sound wave data, and determining the submarine cable depth under the same position information as the seabed depth. Comparing the depth of the submarine cable under the plurality of position information, determining the depth of the target submarine cable, and performing operation processing on the depth of the target submarine cable and the depth of the seabed corresponding to the depth of the target submarine cable to generate the burial depth of the submarine cable.
In one example, as shown in FIG. 3b, a sounding device may be used as a depth finder, with the sounding device and acoustic signal generator being located inside the vessel above the sea surface. The position of the ship is moved, a second sound wave signal is transmitted through the echo sounding instrument, the seabed depth between the current position and the seabed is obtained in real time, a first sound wave signal with preset frequency is transmitted through the sound wave signal generator in real time, and the transmitting time of the first sound wave signal is recorded. And processing the sound wave signal received by the sensing optical fiber to determine the receiving time of the first sound wave signal. And determining the depth of the submarine cable according to the preset frequency, the transmitting time and the receiving time. According to the depth of the submarine cable and the depth of the seabed, the buried depth of the submarine cable is generated
The buried depth of the submarine cable can be obtained by the following formula:
Figure BDA0003746132530000131
h 2 ＝ 2 ( 3 -2)
H＝h 2 -h 1
wherein h is 1 Depth of sea bed, v 1 For the propagation velocity of the second acoustic signal under sea, Δ t 1 Is the time difference between the time of transmission and the time of reception of the second acoustic signal. h is 2 Is the depth of the sea cable, v 2 Is the propagation velocity of the first acoustic signal in the sea, t 3 Is the reception time, t, of the first acoustic signal 2 And H is the buried depth of the submarine cable, and is the emission time of the first sound wave signal.
In one example, when the sounding device is higher than the acoustic signal generator, the buried depth of the submarine cable can be obtained by the following formula:
H＝h 2 -h 1 +
when the echo sounder is lower than the acoustic signal generator, the buried depth of the submarine cable can be obtained by the following formula:
H＝h 2 -h 1 -
wherein L is a height difference between the echo sounding device and the acoustic wave signal generator.
In one example, when the specific position of the submarine cable is not determined, the acoustic signal generator may be used to transmit a first acoustic signal with a preset frequency, the terminal receives the preset frequency and the transmitting time of the first acoustic signal, determines the receiving time of the first acoustic signal, determines the distance between the acoustic signal generator and the submarine cable at the time according to the preset frequency, the transmitting time and the receiving time, and obtains the position relationship between the acoustic signal generator and the submarine cable, that is, the position where the sensing optical fiber in the submarine cable receives the first acoustic signal is on a spherical surface with the acoustic signal generator as a center of circle and the distance between the acoustic signal generator and the submarine cable as a radius, moves the ship on which the depth finder and the acoustic signal generator are mounted, and repeatedly obtains the distances between the acoustic signal generator and the submarine cable at a plurality of positions, thereby obtaining the GPS position of the submarine cable and the path information of the submarine cable. And when the distance between the sound wave signal generator and the submarine cable is the shortest, determining that the sound wave signal generator is positioned right above the submarine cable, and performing operation processing by using the depth of the seabed and the depth of the submarine cable acquired by the depth finder at the position to generate the buried depth of the submarine cable.
In the embodiment, the detection is performed by the depth finder and the sound wave signal generator which are arranged on the same piece of water equipment, data acquisition is automatically completed, various pieces of water equipment do not need to be operated, so that the operation of the submarine cable buried depth detection method is simple, the efficiency of the submarine cable buried depth detection method is improved, the cost of the submarine cable buried depth detection method is reduced, the first sound wave signal with preset frequency is transmitted by the sound wave signal generator, the sound wave signal received by the photosensitive fiber is demodulated by adopting the preset frequency, the receiving time of the first sound wave signal is determined, the interference of external noise on the sound wave signal received by the photosensitive fiber can be avoided, the time error is reduced, the accuracy of the submarine cable depth is improved, and the safety of the submarine cable buried depth detection method can be improved by adopting the passively-connected sensing fiber. In addition, the depth finder and the sound wave signal generator are physical equipment on water and cannot be influenced by external environment change, so that the universality of the submarine cable burial depth detection method can be improved.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not limited to being performed in the exact order illustrated and, unless explicitly stated herein, may be performed in other orders. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be rotated or alternated with other steps or at least a part of the steps or stages in other steps.
Based on the same utility model conception, the embodiment of the application also provides a submarine cable buried depth detection device for realizing the submarine cable buried depth detection method related to the above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the method, so that specific limitations in one or more embodiments of the submarine cable burial depth detection device provided below can be referred to the limitations on the submarine cable burial depth detection method in the above, and details are not described here.
In one embodiment, as shown in fig. 4, there is provided a submarine cable burial depth detection device 400, comprising: a data receiving module 402, a submarine cable depth determining module 404, and a submarine cable buried depth generating module 406, wherein:
the data receiving module 402 is configured to receive a sea bed depth sent by the depth finder, and receive acoustic data sent by an acoustic signal generator, where the acoustic data is obtained by recording a first acoustic signal with a preset frequency sent by the acoustic signal generator, and the acoustic signal generator and the depth finder are disposed in the same piece of water equipment.
The submarine cable depth determining module 404 is configured to process the acoustic wave signal received by the sensing optical fiber, determine the receiving time of the first acoustic wave signal, determine the submarine cable depth according to the acoustic wave data and the receiving time, and set the sensing optical fiber in the submarine cable.
And a submarine cable burial depth generating module 406, configured to generate the burial depth of the submarine cable according to the sea bed depth and the submarine cable depth.
In one embodiment, the acoustic data carries second position information corresponding to the first acoustic signal. The data receiving module 402 is further configured to: and receiving first position information which is sent by the depth finder and corresponds to the depth of the seabed. The submarine cable buried depth generating module 406 is further configured to: obtaining a corresponding group of seabed depth and sound wave data according to the first position information and the second position information, and determining the depth of a submarine cable corresponding to the seabed depth; and carrying out operation processing on the seabed depth and the submarine cable depth corresponding to the seabed depth to generate the buried depth of the submarine cable.
In one embodiment, the submarine cable buried depth generating module 406 includes: the target submarine cable depth determining module is used for comparing the submarine cable depths under the position information to determine the target submarine cable depth; and the burial depth generating module is used for calculating the depth of the target submarine cable and the depth of the seabed corresponding to the depth of the target submarine cable to generate the burial depth of the submarine cable.
In one embodiment, the acoustic signal comprises a preset frequency and a transmission time of the first acoustic signal. The data receiving module 402 is further configured to: and receiving the preset frequency and the transmission time sent by the sound wave signal generator. The sea cable depth determination module 404 includes: the receiving time determining unit is used for demodulating the sound wave signals received by the sensing optical fiber according to preset frequency, determining first sound wave signals from the sound wave signals and recording the receiving time of the first sound wave signals; and the depth determining unit is used for determining the depth of the submarine cable according to the preset frequency, the transmitting time and the receiving time.
All or part of the modules in the submarine cable buried depth detection device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent of a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 5. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a method of submarine cable burial depth detection. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the configuration shown in fig. 5 is a block diagram of only a portion of the configuration associated with the present application, and is not intended to limit the computing device to which the present application may be applied, and that a particular computing device may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is further provided, which includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the above method embodiments when executing the computer program.
In an embodiment, a computer-readable storage medium is also provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
In an embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, carries out the steps in the method embodiments described above.
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 for analysis, stored data, displayed data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by hardware instructions of a computer program, which may be stored in a non-volatile computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, databases, or other media used in the embodiments provided herein can include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high-density embedded nonvolatile Memory, resistive Random Access Memory (ReRAM), magnetic Random Access Memory (MRAM), ferroelectric Random Access Memory (FRAM), phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others. The databases referred to in various embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the various embodiments provided herein may be, without limitation, general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, or the like.
All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims (10)

1. A submarine cable burial depth detection system, comprising:
the depth finder is arranged on the water equipment and used for detecting the depth of the seabed;
the sound wave signal generator is arranged on the water equipment and used for transmitting a first sound wave signal with preset frequency and recording sound wave data of the first sound wave signal;
and the data processing device is connected with the depth finder, the sound wave signal generator and the sensing optical fiber arranged in the submarine cable and is used for receiving the seabed depth sent by the depth finder and the sound wave data sent by the sound wave signal generator.
2. The submarine cable burial depth detection system according to claim 1, wherein the depth finder and the acoustic signal generator are disposed at the bottom of the above-water device.
3. The submarine cable burial depth detection system according to claim 1, wherein said data processing unit comprises:
and the time synchronization device is respectively connected with the depth finder and the sound wave signal generator and is used for timing the depth finder, the sound wave signal generator and the data processing device.
4. The submarine cable burial depth detection system according to claim 1, wherein said data processing unit comprises:
the optical fiber monitoring device is connected with the acoustic wave signal generator and the sensing optical fiber and is used for receiving the acoustic wave data sent by the acoustic wave signal generator and monitoring the acoustic wave signal received by the sensing optical fiber;
and the control device is connected with the depth finder and the optical fiber monitoring device and is used for receiving the seabed depth sent by the depth finder and the sound wave data sent by the optical fiber monitoring device.
5. The submarine cable burial depth detection system according to claim 4, wherein the optical fiber monitoring device is connected with the sensing optical fiber at a landing position of the sensing optical fiber.
6. The submarine cable burial depth detection system according to claim 4, wherein said optical fiber monitoring device comprises: and the first positioning device is connected with the sound wave signal generator and used for receiving the sound wave data sent by the sound wave signal generator.
7. The submarine cable burial depth detection system according to any one of claims 1-6, wherein the depth finder comprises a transmitting transducer, a receiving transducer and a depth measurement device;
the transmitting transducer is used for transmitting a second sound wave signal;
the receiving transducer is arranged opposite to the transmitting transducer and used for receiving the second acoustic wave signal;
the sounding device is respectively connected with the transmitting transducer and the receiving transducer and used for recording the time difference between the transmitting transducer transmitting the second sound wave signals and the receiving transducer receiving the second sound wave signals.
8. The submarine cable burial depth detection system according to any one of claims 1-6, wherein said depth finder comprises: and the second positioning device is connected with the data processing device and used for recording the first position information of the depth finder and sending the seabed depth to the data processing device.
9. The submarine cable burial depth detection system according to any one of claims 1-6, wherein the depth finder comprises any one of an echo sounder, a heave compensation depth finder, a towed depth finder, a multi-beam depth finder, and a dual-frequency depth finder.
10. The submarine cable burial depth detection system according to any one of claims 1 to 6, wherein said acoustic signal generator comprises: and the third positioning device is connected with the data processing device and used for recording second position information of the sound wave signal generator and sending the second position information to the data processing device.
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