CN112216068A - Submarine cable scouring monitoring early warning protection system and method - Google Patents
Submarine cable scouring monitoring early warning protection system and method Download PDFInfo
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- CN112216068A CN112216068A CN202010910954.1A CN202010910954A CN112216068A CN 112216068 A CN112216068 A CN 112216068A CN 202010910954 A CN202010910954 A CN 202010910954A CN 112216068 A CN112216068 A CN 112216068A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
Abstract
The invention relates to the technical field of submarine cable protection, in particular to a submarine cable scouring monitoring and early warning protection system, which comprises a protection device and an early warning system; the early warning system comprises a detection module, a processing module and display equipment, wherein the detection module is fixedly connected with the diversion mechanism, and the processing module is in communication and electric connection with the detection module and the display equipment. According to the invention, the fixing mechanism is additionally arranged on the flow guide mechanism, so that the flow guide mechanism is fixed on the sea bottom around the submarine cable, and the flow guide mechanism is prevented from being washed away by sea waves; in addition, a detection module is arranged on the diversion mechanism to detect the surrounding environment information of the submarine cable and display the surrounding environment information on a display device, so that the visible real-time monitoring of the scouring condition of the submarine cable is realized, and the early warning protection function is realized.
Description
Technical Field
The invention relates to the technical field of submarine cable protection, in particular to a submarine cable scouring monitoring and early warning protection system and method.
Background
Submarine cables are cables wrapped with insulating materials, laid on the sea floor, and used for telecommunication transmission.
The submarine cable laying mainly comprises three stages of cable routing survey cleaning, submarine cable laying and flush burying protection. When the deep sea section is laid, the cable laying ship releases the cable, an underwater monitor and an underwater remote control car are used for continuously monitoring and adjusting, and the advancing speed and the direction of the laying ship and the speed of laying the cable are controlled so as to avoid uneven places and rocks from damaging the cable. At the final stage of construction, the submarine cable needs to be protected by deep burying, the influence of a complex marine environment on the submarine cable is reduced, and the operation safety is ensured. In the sand and silt areas, a groove with the depth of about 2 meters is formed by high-pressure flushing water, the cable is buried in the groove, and the sand beside the groove covers the groove; cutting a groove with the depth of 0.6-1.2 m in the coral reef and clay area by a cutting machine, burying the cable in the groove, and naturally backfilling to form protection; in the hard rock area, the cable needs to be covered with a cement cover plate and other hard objects for protection.
Since the submarine cable is often in a very harsh submarine environment and is directly affected by waves, currents and the like, many uncertain factors exist, and the risk of the submarine pipeline is greatly increased. Specifically, the existence of the submarine cable changes the original water flow field, the pressure difference occurs at the upstream and downstream positions of the submarine cable, so that seepage occurs on the surface of the seabed, and when the pressure exceeds the underwater weight of silt, scouring begins to occur. With the further development of seepage, a large amount of silt is flushed downstream, so that a suspended section of the submarine cable is generated. Meanwhile, due to the action of water flow, vortex-induced vibration may occur in the suspended section, so that the submarine pipeline is damaged due to fatigue.
In order to solve the above problems, chinese patent CN209571806U discloses an anti-scouring protection device for submarine cables, which comprises an outer baffle and an inner baffle connected in a herringbone manner, wherein the included angle of the inner baffle is smaller than that of the outer baffle, and the inner baffle and the outer baffle are both provided with grid holes, so as to improve the flow velocity distribution above the submarine cables, promote the accumulation of silt and avoid the scouring of the seabed. However, the arrangement can not ensure that the protection device is always fixed in the original position and cannot be washed away, so that the protection effect is stable; in addition, the submarine cable is in the deep sea, and personnel on the shore can not carry out real-time supervision to the submarine cable, can not in time handle when taking place to excessively erode and seriously influence the submarine cable safety condition.
Disclosure of Invention
The invention provides a submarine cable scouring monitoring and early warning protection system which has a stable protection effect and can visually monitor submarine cables in real time, aiming at overcoming the defects that the protection device in the prior art is unstable in effect and cannot monitor submarine cables in real time.
In the technical scheme, the submarine cable scouring monitoring and early warning protection system comprises a protection device and an early warning system; the early warning system comprises a detection module for detecting submarine environment information, a processing module for receiving and processing information from the detection module, and a display device for displaying a processing result, wherein the detection module is fixedly connected with the diversion mechanism, and the processing module is in communication and electric connection with the detection module and the display device.
According to the invention, the fixing mechanism is additionally arranged on the flow guide mechanism, and the flow guide mechanism is fixed on the seabed around the submarine cable, so that the flow guide mechanism is prevented from being washed away by sea waves to lose the protection effect, and the stable protection is provided for the submarine cable; in addition, a detection module is arranged on the diversion mechanism to detect the flow velocity of seawater around the submarine cable and environmental information such as erosion depth near the protection device, the environmental information is transmitted to a processing module to be processed, the processing module judges the environmental information, and the judgment result and the environmental information are transmitted to a display device to be displayed, so that the visible real-time monitoring of the scouring condition of the submarine cable is realized, and the early warning protection function is realized.
Preferably, the fixing mechanism comprises a first fixing column and a plurality of second fixing columns installed on the side wall of the first fixing column, one end of the first fixing column is fixedly connected with the flow guide mechanism, and the other end of the first fixing column is a tip. The tip of the first fixed column can be deeply inserted into seabed soil so as to fix the protection device at a certain position and prevent seawater from washing away the protection device, in addition, a plurality of second fixed columns are additionally arranged on the first fixed column, the contact area of the first fixed column and the seabed soil is increased, and the fixing effect of the fixing device is enhanced, wherein the number of the second fixed columns can be one or more than one.
Preferably, the detection module comprises a flow velocity detection submodule and a plurality of erosion and deposition depth detection submodules; the flow velocity detection submodule comprises a flow velocity sensor, a connecting piece for connecting the flow velocity sensor with the flow guide mechanism, each erosion depth detection submodule comprises a heating device, a temperature sensor and a Y-shaped fixing frame, one end of the Y-shaped fixing frame is fixedly connected with the flow guide mechanism, and the other two ends of the Y-shaped fixing frame are respectively fixedly connected with the heating device and the temperature sensor. The flow velocity sensor is exposed outside the seabed sandy soil and is fixedly connected with the flow guide mechanism through the connecting piece to prevent the flow velocity sensor from being washed away by seawater, and the flow velocity sensor can acquire the flow velocity information of the seawater around the submarine cable and monitor the water flow velocity of the seawater area around the submarine cable in real time; the heat that is in the device that generates heat of Y type mount one end and sends transmits the temperature sensor to the Y type mount other end through the clearance, and the device that generates heat can have the heat to lose to the surrounding environment in heat transfer process, can be according to temperature sensor's temperature change speed and range old judgement temperature sensor and the device that generates heat between the medium be the water or the soil body to confirm the erosion and deposition degree of depth of submarine cable periphery.
Preferably, the diversion mechanism comprises a first diversion plate and a second diversion plate which are fixed in the middle in an intersecting manner, the first diversion plate and the second diversion plate are both of cambered surface structures with downward concave surfaces, the intersecting and fixed positions of the first diversion plate and the second diversion plate are fixedly connected with one end of a first fixed column, and the first fixed column is positioned below the concave surface of the cambered surface; wherein the included angle A formed by the intersection of the first guide plate and the second guide plate is 30-90 degrees; the cambered surface structure can weaken water flow impulsive force vertical to the axis of the submarine cable, reduce the action of water flow power in the horizontal direction on sandy soil under the concave surface of the cambered surface, the first guide plate and the second guide plate which are intersected in the way can form a larger protection area on the bottom surface of the submarine cable to wrap the sandy soil on the bottom surface of the submarine cable, and meanwhile, the guide grooves at the two ends guide seawater in the direction parallel to the axis of the submarine cable, so that the seawater is prevented from causing excessive scouring on the sandy soil on the bottom surface of the submarine cable, and the protective action of the fixing device on the submarine cable is stabilized; the first guide plate and the second guide plate can be made of high-strength and corrosion-resistant flexible materials such as PVC (polyvinyl chloride) plastics, PC (polycarbonate) plastics or rubber, and can deform to a certain extent under scouring pressure of sandy soil, seawater and the like, so that rapid fracture is avoided.
Preferably, the two ends of the first guide plate and the second guide plate are respectively provided with a guide groove, and the guide grooves, the first guide plate and the second guide plate are all provided with a plurality of through holes. Be provided with the through-hole and can effectively avoid water conservancy diversion mechanism to separate sand and soil for water conservancy diversion mechanism sand and soil all around glues through the through-hole and even, forms overall structure. Simultaneously, when unsettled condition appeared in a certain position, sandy soil all around also can backfill through the through-hole to realize the scour protection of submarine cable.
Preferably, the plurality of erosion and deposition depth detection modules are distributed on the first guide plate, the second guide plate and the guide groove, and the arrangement is to realize simultaneous detection of different positions on the periphery of the submarine cable, comprehensively judge the erosion and deposition depth, and avoid the judgment of the erosion and deposition damage degree caused by errors or faults of a single detection device.
Preferably, the early warning system further comprises an alarm device, the alarm device is electrically connected with the processing module in a communication mode, if the processing module judges that the erosion depth is too large or the flow rate of the seawater is too large, a signal is sent to the alarm device, the alarm device sends information easy to recognize, and a worker is reminded of processing.
Preferably, the display device is a display screen, a computer, a mobile phone or a tablet personal computer, so that the surrounding environment of the submarine cable is clearly displayed, and the submarine cable can be conveniently checked by a worker at any time.
Preferably, foretell alarm device is speaker, alarm bell, alarm lamp, can send alarm information, and the suggestion staff in time checks the depth of washing silt or whether the velocity of water reaches the danger value to in time handle, realize the early warning protection.
In the technical scheme, the early warning method comprises the following steps:
s1: the front end sensor acquires submarine environment information, wherein the heating device is electrified to emit heat, the heat is conducted to the temperature sensor through a medium, the temperature sensor converts a temperature change signal into a first electric signal and transmits the first electric signal to the processing module, and the flow velocity sensor converts a seawater flow velocity signal into a second electric signal and transmits the second electric signal to the processing module;
s2: the processing module converts the sensor information into corresponding numerical values, and respectively converts the first electric signal and the second electric signal into a depth numerical value A and a flow rate numerical value B;
s3: the processing module compares the value obtained in the step (2) with a reference value, namely, performing difference operation on the depth value A and the reference depth value a to obtain a difference value D, and performing difference operation on the flow rate value B and the reference flow rate value B to obtain a difference value E;
s4: and judging whether the comparison result exceeds a threshold value or not, and giving an early warning action, wherein the processor judges whether the difference D is greater than 0 or whether the difference E is greater than 0 or not, and sends a warning instruction to the warning device and the display equipment if the difference D is greater than 0 or the difference E is greater than 0, and the warning device and the display equipment send warning information. Wherein the alarm information can be sound, image, character, light, etc.;
s5: and (4) displaying the comparison result of the step (3), wherein the processor transmits the depth value A, the reference depth value a, the flow rate value B, the difference D, the flow rate value B, the reference flow rate value B and the difference E to display equipment.
Compared with the prior art, the beneficial effects are:
according to the invention, the fixing mechanism is additionally arranged on the flow guide mechanism, and the flow guide mechanism is fixed on the seabed around the submarine cable, so that the flow guide mechanism is prevented from being washed away by sea waves to lose the protection effect, and the stable protection is provided for the submarine cable; in addition, a detection module is arranged on the flow guide mechanism, environmental information such as the peripheral flow velocity and erosion and deposition depth of the submarine cable is detected and displayed on a display device, and a visual system is established to monitor the scouring condition of the submarine cable in real time and realize the early warning and protection functions.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a submarine cable scour monitoring and early warning protection system according to an embodiment of the invention;
FIG. 2 is a schematic view of a connecting structure between a protection device and a submarine cable of the submarine cable scour monitoring and early warning protection system according to the embodiment of the invention;
FIG. 3 is a schematic structural diagram of a diversion mechanism of a submarine cable scour monitoring and early warning protection system according to an embodiment of the invention;
fig. 4 is a schematic cross-sectional view of a first baffle of the submarine cable scour monitoring and early warning protection system according to the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a second detection module of the submarine cable scour monitoring and early warning protection system according to the embodiment of the invention;
fig. 6 is a schematic flow chart of an embodiment of the invention, fig. 3 is a schematic flow chart of a submarine cable scour monitoring and early warning protection method according to an embodiment of the invention;
FIG. 7 is a schematic signal transmission diagram of a submarine cable scour monitoring and early warning protection system according to an embodiment of the present invention;
fig. 8 is an application schematic diagram of a submarine cable scour monitoring early warning protection system according to an embodiment of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
examples
Fig. 1 to 7 show an embodiment of a submarine cable scour monitoring and early warning protection system, which includes a protection device and an early warning system; the protection device comprises a flow guide mechanism 2 and a fixing mechanism 1 connected with the flow guide mechanism 2 to provide a fixing and supporting effect, the early warning system comprises a detection module used for detecting submarine environment information, a processing module 7 used for receiving and processing information from the detection module, and a display device 8 used for displaying a processing result, the detection module is fixedly connected with the flow guide mechanism 2, and the processing module 7 is in communication and electric connection with the detection module and the display device 8.
As shown in fig. 2, the fixing mechanism 1 in this embodiment includes a first fixing column 11 and a plurality of second fixing columns 12 installed on a side wall of the first fixing column 11, one end of the first fixing column 11 is fixedly connected with the diversion mechanism 2, and the other end is a tip. The tip of the first fixed column 11 can be deeply inserted into the seabed soil to fix the protection device at a certain position and prevent seawater from washing away the protection device, in addition, a plurality of second fixed columns 12 are additionally arranged on the first fixed column 11 to increase the contact stress area of the first fixed column 11 and the seabed soil and enhance the fixing effect of the fixing device, wherein one or more second fixed columns 12 can be used for enhancing the fixing effect.
As shown in fig. 1 and 5, the detection module in this embodiment includes a flow rate detection submodule 4 and a plurality of erosion and deposition depth detection submodules 5; the flow velocity detection submodule 4 comprises a flow velocity sensor 41, a connecting piece 42 for connecting the flow velocity sensor 41 with the flow guide mechanism 2, each erosion depth detection submodule 5 comprises a heating device 51, a temperature sensor 52 and a Y-shaped fixing frame 53, one end of the Y-shaped fixing frame 53 is fixedly connected with the flow guide mechanism 2, and the other two ends of the Y-shaped fixing frame are respectively fixedly connected with the heating device 51 and the temperature sensor 52. The flow velocity sensor 41 is exposed outside the seabed sandy soil and is fixedly connected with the flow guide mechanism 2 through the connecting piece 42 to prevent the flow velocity sensor from being washed away by seawater, can acquire the flow velocity information of the seawater around the submarine cable 3 and monitors the water velocity of the seawater area around the submarine cable 3 in real time; the heat emitted by the heating device 51 at one end of the Y-shaped fixing frame 53 is transferred to the temperature sensor 52 at the other end of the Y-shaped fixing frame through the gap, the heat of the heating device 51 is dissipated to the surrounding environment in the heat transfer process, and whether the medium between the temperature sensor 52 and the heating device 51 is water or soil can be judged according to the temperature change speed and amplitude of the temperature sensor 52, so that the erosion depth around the submarine cable 3 is determined. It should be noted that the detection of the flow velocity of the seawater by the flow velocity sensor in this embodiment is only a preferred embodiment, and is not to be construed as a limitation to this embodiment, and it is needless to say that other devices may be employed to realize the function of detecting the flow velocity of the seawater.
As shown in fig. 3, the flow guide mechanism 2 in this embodiment includes a first flow guide plate 21 and a second flow guide plate 22 that are fixed in an intersecting manner at the middle portion, both the first flow guide plate 21 and the second flow guide plate 22 are cambered surface structures with concave surfaces facing downward, a position M where the first flow guide plate 21 and the second flow guide plate 22 are fixed in an intersecting manner is fixedly connected with one end of a first fixing column 11, wherein an included angle a formed by the first flow guide plate 21 and the second flow guide plate 22 in an intersecting manner is 30-90 °; the cambered surface structure can weaken the rivers impulsive force with 3 axis vertically of submarine cable, reduce the effect of the rivers power of horizontal direction to the sand and soil under the cambered surface concave surface, crossing first guide plate 21 and second guide plate 22 can form great protection area in 3 bottom surfaces of submarine cable like this, the sand and soil of 3 bottom surfaces of submarine cable is lived in the parcel, the guiding gutter 24 at both ends simultaneously leads the sea water along the direction water conservancy diversion parallel with 3 axis of submarine cable, avoid the sea water to cause too big washing away to the sand and soil of 3 bottom surfaces of submarine cable, with the guard action of stable fixing device to submarine cable 3. The first guide plate 21 and the second guide plate 22 can be made of high-strength and corrosion-resistant flexible materials such as PVC (polyvinyl chloride) plastics, PC (polycarbonate) plastics or rubber, and can deform to a certain extent under scouring pressure of sandy soil, seawater and the like, so that rapid fracture is avoided. It should be noted that the diversion mechanism 2 in this embodiment includes the first diversion plate 21 and the second diversion plate 22 intersecting at an angle of 30 ° to 90 °, which is only a preferred example and is not to be understood as a limitation to the solution, and of course, different numbers of diversion plates with different intersection angles may be provided to achieve different degrees of protection for the sandy soil at the bottom of the submarine cable 3.
As shown in fig. 4, the first guide plate 21 and the second guide plate 22 in this embodiment are respectively provided with a guide groove 24 at two ends thereof, and the guide groove 24, the first guide plate 21, and the second guide plate 22 are respectively provided with a plurality of through holes 23. Be provided with through-hole 23 and can effectively avoid guiding mechanism 2 to separate husky soil for guiding mechanism 2 husky soil all around glues through-hole 23 and even, forms overall structure. Meanwhile, when a certain position is suspended, the surrounding sandy soil can be backfilled through the through holes 23, so that the erosion protection of the submarine cable 3 is realized. The shape of the through holes 23 is not limited, and the through holes or grooves or other through structures may be formed in the baffle or the guide groove 24 to allow sand and soil around the baffle or the guide groove 24 to contact and adhere to each other.
In this embodiment, the erosion and deposition depth detection modules 5 are distributed on the first flow guide plate 21, the second flow guide plate 22 and the flow guide groove. The setting is in order to realize detecting 3 peripheral different positions of submarine cable simultaneously like this, and comprehensive judgement washes the silt degree of depth, avoids single detection device error or fault influence to wash the judgement of destruction degree.
The early warning system in the embodiment further comprises an alarm device 9, the alarm device 9 is electrically connected with the processing module 7 in a communication mode, if the processing module judges that the scouring depth of the periphery of the submarine cable 3 is too large or the flow rate of the seawater is too large, a signal is sent to the alarm device 9, the alarm device 9 sends information easy to identify, and a worker is reminded of processing the information.
The display device 8 in this embodiment is a display screen, a computer, a mobile phone, or a tablet computer, and clearly displays the surrounding environment of the submarine cable 3, so that the surrounding environment can be conveniently checked by the staff at any time.
Alarm device 9 in this embodiment is speaker, alarm bell, alarm lamp, can send alarm information, and the suggestion staff in time checks the depth of erosion and deposition or whether velocity of water reaches the danger value to in time handle, realize the early warning protection.
As shown in fig. 6, a warning method includes the following steps:
s1: the front end sensor acquires submarine environment information, wherein the heating device is electrified to emit heat, the heat is conducted to the temperature sensor through a medium, the temperature sensor converts a temperature change signal into a first electric signal and transmits the first electric signal to the processing module, and the flow velocity sensor converts a seawater flow velocity signal into a second electric signal and transmits the second electric signal to the processing module;
s2: the processing module converts the sensor information into corresponding numerical values, and respectively converts the first electric signal and the second electric signal into a depth numerical value A and a flow rate numerical value B;
s3: the processing module compares the value obtained in the step (2) with a reference value, namely, performing difference operation on the depth value A and the reference depth value a to obtain a difference value D, and performing difference operation on the flow rate value B and the reference flow rate value B to obtain a difference value E;
s4: and judging whether the comparison result exceeds a threshold value or not, and giving an early warning action, wherein the processor judges whether the difference D is greater than 0 or whether the difference E is greater than 0 or not, and sends a warning instruction to the warning device and the display equipment if the difference D is greater than 0 or the difference E is greater than 0, and the warning device and the display equipment send warning information. Wherein the alarm information can be sound, image, character, light, etc.;
s5: and (4) displaying the comparison result of the step (3), wherein the processing module transmits the depth value A, the reference depth value a, the flow rate value B, the difference D, the flow rate value B, the reference flow rate value B and the difference E to display equipment.
As shown in fig. 8, when the submarine cable 3 is deeply buried and protected, the submarine cable 3 is fixed above the diversion mechanism 2, a groove is formed by high-pressure flushing water or cut by a cutting machine, and then the submarine cable 3 is buried therein and covered with sand and soil beside the submarine cable. According to the invention, the effective fixation and anti-scouring protection of the submarine cable 3 are realized through the matching of the flow guide mechanism 2 and the fixing mechanism 1. Specifically, the method comprises the following steps: the fixing mechanism 1 is deeply inserted into sandy soil on the seabed through the tip of the first fixing column 11, so that effective positioning of the protection device is realized, and meanwhile, the diversion mechanism 2 can weaken the water flow impact force of seawater on the sandy soil on the bottom surface of the submarine cable 3 through the cambered surface structure and the diversion trench 24, protect the sandy soil below the cambered surface, stabilize the positioning effect of the first fixing column 11 and provide stable protection effect; in addition, the flow velocity sensor 41 and the erosion depth detection module 5 are arranged on the flow guide mechanism 2, environmental information such as the flow velocity and the erosion condition of seawater around the submarine cable 3 can be obtained in real time, the submarine cable 3 is protected by the device, in the actual application process, the submarine cable 3 can be a submarine communication cable or a submarine power cable, so that the detection module in the device can conveniently supply power through the submarine cable 3 and is in communication transmission with a processing module on the shore, the obtained environmental information and the judgment result are transmitted to the display device 8 to be checked by workers, and the visual monitoring, early warning and protection of the submarine cable 3 are realized.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A submarine cable scouring monitoring and early warning protection system is characterized by comprising a protection device and an early warning system; the protection device comprises a flow guide mechanism (2) and a fixing mechanism (1) connected with the flow guide mechanism (2) to provide a fixing and supporting effect, the early warning system comprises a detection module used for detecting submarine environment information, a processing module (7) used for receiving and processing information from the detection module, and a display device (8) used for displaying a processing result, the detection module is fixedly connected with the flow guide mechanism (2), and the processing module (7) is in communication and electric connection with the detection module and the display device (8).
2. The submarine cable scouring monitoring and early warning protection system according to claim 1, wherein the fixing mechanism (1) comprises a first fixing column (11) and a plurality of second fixing columns (12) mounted on the side wall of the first fixing column (11), one end of the first fixing column (11) is fixedly connected with the diversion mechanism (2), and the other end of the first fixing column is a tip.
3. The submarine cable scour monitoring and early warning protection system according to claim 1, wherein the detection module comprises a flow rate detection submodule (4) and a plurality of scour-deposition depth detection submodules (5); flow velocity detection submodule (4) include velocity sensor (41), connect velocity sensor (41) with connecting piece (42) of water conservancy diversion mechanism (2), every dash silt degree of depth detection submodule (5) including generating heat device (51), temperature sensor (52), Y type mount (53), the one end of Y type mount (53) with water conservancy diversion mechanism (2) fixed connection, in addition both ends respectively with generating heat device (51), temperature sensor (52) fixed connection.
4. The submarine cable scour monitoring and early warning protection system according to claim 2, wherein the diversion mechanism (2) comprises a first diversion plate (21) and a second diversion plate (22) which are fixed in a crossed manner in the middle, the first diversion plate (21) and the second diversion plate (22) are both cambered structures with concave surfaces facing downwards, the crossed and fixed positions of the first diversion plate (21) and the second diversion plate (22) are fixedly connected with one end of the first fixing column (11), and the first fixing column (11) is located below the concave surface of the cambered surface.
5. The submarine cable scour monitoring and early warning protection system according to claim 4, wherein the first guide plate (21) and the second guide plate (22) are provided at both ends thereof with guide grooves (24), and the guide grooves (24), the first guide plate (21) and the second guide plate (22) are provided with a plurality of through holes (23).
6. The submarine cable scouring monitoring and early warning protection system according to claim 5, wherein a plurality of scouring depth detection submodules (5) are distributed on the first guide plate (21), the second guide plate (22) and the guide groove (24).
7. A submarine cable scour monitoring, forewarning and protection system according to claim 1, wherein the forewarning system further comprises an alarm device (9), and the alarm device (9) is in communication and electrical connection with the processing module (7).
8. A submarine cable scour monitoring, early warning and protection system according to claim 1, wherein the display device (8) is a display screen or a desktop computer or a mobile phone or a tablet computer.
9. A submarine cable scour monitoring, forewarning and protection system according to claim 7, wherein the alarm device (9) is a speaker or alarm bell or lamp.
10. An early warning protection method of a submarine cable scour monitoring early warning protection system according to any one of claims 1 to 9, comprising the steps of:
s1: the front end sensor acquires submarine environment information, wherein the heating device is electrified to emit heat, the heat is conducted to the temperature sensor through a medium, the temperature sensor converts a temperature change signal into a first electric signal and transmits the first electric signal to the processing module, and the flow velocity sensor converts a seawater flow velocity signal into a second electric signal and transmits the second electric signal to the processing module;
s2: the processing module converts the sensor information into corresponding numerical values, and respectively converts the first electric signal and the second electric signal into a depth numerical value A and a flow rate numerical value B;
s3: the processing module compares the value obtained in the step (2) with a reference value, namely, performing difference operation on the depth value A and the reference depth value a to obtain a difference value D, and performing difference operation on the flow rate value B and the reference flow rate value B to obtain a difference value E;
s4: and judging whether the comparison result exceeds a threshold value or not, and making an early warning action, wherein the processing module judges whether the difference D is greater than 0 or whether the difference E is greater than 0 or not, and sends a warning instruction to the warning device and the display equipment if the difference D is greater than 0 or the difference E is greater than 0, and the warning device and the display equipment send warning information.
S5: and (4) displaying the comparison result of the step (3), wherein the processing module transmits the depth value A, the reference depth value a, the flow rate value B, the difference D, the flow rate value B, the reference flow rate value B and the difference E to display equipment.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN114336546A (en) * | 2021-12-22 | 2022-04-12 | 湖南大学 | Constant-voltage submarine observation network power supply system protection method based on control and protection cooperation |
| CN115392098A (en) * | 2022-10-31 | 2022-11-25 | 浙江远算科技有限公司 | Offshore wind power submarine cable exposure prediction method and system based on water-sand numerical simulation |
| CN116597618A (en) * | 2023-07-18 | 2023-08-15 | 深圳市天工测控技术有限公司 | Mountain landslide monitoring and early warning system based on Beidou high-precision positioning |
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| CN112880582A (en) * | 2021-01-19 | 2021-06-01 | 河海大学 | A monitoring devices that is used for intertidal zone tidal flat bed local erosion and deposition to warp |
| CN114336546A (en) * | 2021-12-22 | 2022-04-12 | 湖南大学 | Constant-voltage submarine observation network power supply system protection method based on control and protection cooperation |
| CN114336546B (en) * | 2021-12-22 | 2022-09-02 | 湖南大学 | Constant-voltage submarine observation network power supply system protection method based on control and protection cooperation |
| CN115392098A (en) * | 2022-10-31 | 2022-11-25 | 浙江远算科技有限公司 | Offshore wind power submarine cable exposure prediction method and system based on water-sand numerical simulation |
| CN116597618A (en) * | 2023-07-18 | 2023-08-15 | 深圳市天工测控技术有限公司 | Mountain landslide monitoring and early warning system based on Beidou high-precision positioning |
| CN116597618B (en) * | 2023-07-18 | 2023-10-10 | 深圳市天工测控技术有限公司 | Mountain landslide monitoring and early warning system based on Beidou high-precision positioning |
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