阅读说明：本技术 一种水下接驳站海上布放和回收方法及系统 (Offshore laying and recycling method and system for underwater docking station ) 是由 左名久 林海涛 周学军 王希晨 王满 胡珊 郑碧娟 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种水下接驳站海上布放和回收方法及系统,属于海底光缆通信系统工程技术领域,所述水下接驳站海上布放方法,包括以下步骤,选择符合预设条件的接驳站布放海域；抛下与钢索一端相连接的蘑菇锚,布缆船向布缆方向行驶,所述钢索被释放下水；待到钢索释放至预设长度后,将钢索的另一端与接驳站一端连接,将接驳站的另一端与海缆连接,布放接驳站,使其到达海床；所述水下接驳站海上回收方法,包括以下步骤,定位故障接驳站的位置,并定位所述故障接驳站对应海缆的位置和方向；待到布缆船沿海缆方向航行预设距离后,将钢索末端的蘑菇锚拉起；通过拉起钢索从而回收接驳站。实现了接驳站的高效率布放和回收。(The invention discloses a method and a system for laying and recovering an underwater docking station on sea, belonging to the technical field of submarine optical cable communication system engineering, wherein the method for laying the underwater docking station on the sea comprises the following steps of selecting a docking station laying sea area meeting preset conditions; throwing down a mushroom anchor connected with one end of a steel cable, driving the cable laying ship in the cable laying direction, and releasing the steel cable into water; after the steel cable is released to a preset length, connecting the other end of the steel cable with one end of a connection station, connecting the other end of the connection station with a submarine cable, and laying the connection station to enable the connection station to reach the seabed; the method for recovering the underwater connection station at sea comprises the following steps of positioning the position of a fault connection station, and positioning the position and the direction of the fault connection station corresponding to a submarine cable; after the cable laying ship sails along the direction of the sea cable for a preset distance, pulling up the mushroom anchor at the tail end of the steel cable; the docking station is recovered by pulling up the wire rope. The high-efficiency arrangement and recovery of the docking station are realized.)

1. A method for laying and recovering an underwater docking station on sea is characterized by comprising the following steps,

step S11, selecting a docking station meeting preset conditions to lay the sea area;

step S12, throwing down a mushroom anchor connected with one end of the steel cable, driving the cable laying ship in the direction of cable laying, and releasing the steel cable to launch;

step S13, after the steel cable is released to a preset length, connecting the other end of the steel cable with one end of the connection station, connecting the other end of the connection station with the submarine cable, and laying the connection station to enable the connection station to reach the seabed;

the offshore recovery method of the underwater docking station comprises the following steps,

step S21, positioning the position of a fault connection station, and positioning the position and the direction of the fault connection station corresponding to the submarine cable;

step S22, after the cable laying ship sails along the direction of the sea cable for a preset distance, pulling up the mushroom anchor at the tail end of the steel cable;

step S23, the docking station is recovered by pulling up the wire rope.

2. The method for offshore deployment and retrieval of an underwater docking station as recited in claim 1, further comprising testing the docking station to confirm that the docking station is functioning properly prior to dropping the mushroom anchor.

3. The subsea docking station offshore deployment and retrieval method of claim 2, further comprising the steps of,

and step S14, testing the docking station again after the docking station arrives at the seabed to confirm that the docking station can work normally, detecting whether the attitude of the docking station is correct or not, if not, recovering the submarine cable, correcting the attitude of the docking station by utilizing the self-attitude adjusting capability of the docking station, and enabling the docking station to arrive at the seabed again.

4. The subsea docking station offshore deployment and retrieval method of claim 3, further comprising the steps of,

and step S15, sending an activation signal to the underwater sound control releaser, and releasing the buoyancy block on the docking station after the underwater sound control releaser receives the activation signal, thereby recovering the buoyancy block.

5. A marine laying and recovery system for an underwater docking station is characterized by comprising a depth sounder, a mushroom anchor throwing device, docking station connecting equipment, a docking station laying device, a fault docking station positioning device, a submarine cable detection device and a cable fishing machine;

the depth sounder is used for selecting a docking station meeting preset conditions to be deployed in a sea area;

the mushroom anchor throwing device is used for throwing a mushroom anchor connected with one end of a steel cable, the cable laying ship runs towards the cable laying direction, and the steel cable is released to launch;

the connection station connecting equipment is used for connecting the other end of the steel cable with one end of the connection station and connecting the other end of the connection station with the submarine cable; the docking station laying device is used for laying the docking station to enable the docking station to reach the seabed;

the device comprises a fault connection station positioning device, a submarine cable detection device and a submarine cable detection device, wherein the fault connection station positioning device is used for positioning the position of a fault connection station, and the submarine cable detection device is used for positioning the position and the direction of a submarine cable corresponding to the fault connection station;

the cable fishing machine is used for pulling up the mushroom anchor and the steel cable after the cable distribution ship sails along the direction of the sea cable for a preset distance, thereby recovering the connection station.

6. The offshore docking station deployment and retrieval system of claim 5, further comprising a docking station testing device for testing the docking station before the mushroom anchor is thrown and after the docking station reaches the seabed to confirm that the docking station is working properly.

7. The offshore docking station deployment and retrieval system of claim 5, further comprising a releaser deck unit, an underwater acoustic controlled releaser and a buoyancy block,

the underwater acoustic control releaser is communicated with the releaser deck unit and is used for detecting whether the attitude of the docking station is correct or not, if not, the docking station laying device acquires an incorrect attitude signal sent by the underwater acoustic control releaser through the releaser deck unit, then recovers the submarine cable, utilizes the self attitude adjustment capability of the docking station to enable the attitude of the docking station to be correct, and enables the docking station to reach the seabed again;

the buoyancy block is used for keeping the docking station in a correct posture in the process of laying the docking station;

the releaser deck unit is also used for sending an activation signal to the underwater sound control releaser, and the underwater sound control releaser releases the buoyancy block on the docking station after receiving the activation signal.

Technical Field

The invention relates to the technical field of submarine optical cable communication system engineering, in particular to a method and a system for laying and recovering an underwater docking station on the sea.

Background

With the continuous development of information technology, an autonomous underwater unmanned vehicle (AUV) is used as one of powerful tools for exploring ocean space, and plays an increasingly important role in the aspects of military and scientific research; the underwater docking station plays a crucial role in the aspects of endurance, emergency, cluster operation, operation cost and the like of the AUV in the future. The submarine observation network is a particularly prominent means for marine observation, can transmit high-voltage electric energy and high-speed network communication signals to the seabed through special submarine cables to support various sensors and equipment to operate on the seabed for a long time, and transmits detection data back to a base station on shore in real time, and is one of the most suitable platforms for detection in various aspects of our earth home.

The AUV underwater docking station is used as a medium, the AUV and a seabed observation network can be well combined to form a three-dimensional marine environment monitoring system, and the marine environment is monitored in an all-around manner. The quality of the docking station layout and subsequent maintenance work are key factors in ensuring the reliability of these observation systems. The length of AUV in many deep seas reaches more than 6 meters, and its corresponding connection station is bulky, and how to utilize existing equipment and machines, it becomes especially important to put the correct cloth of connection station to the seabed through the promotion on the construction method. The common arrangement mode of the docking station is mainly to hoist the docking station to the seabed through a cable, the arrangement depth of the docking station is limited by the length of the cable, and due to the influence of ocean current, the cable is easy to twist in the hoisting process to influence the arrangement of the docking station.

Disclosure of Invention

The invention aims to overcome at least one problem and provides a method and a system for offshore deployment and recovery of an underwater docking station.

In one aspect, the invention provides a method for laying and recovering an underwater docking station on sea, which comprises the following steps,

step S11, selecting a docking station meeting preset conditions to lay the sea area;

step S12, throwing down a mushroom anchor connected with one end of the steel cable, driving the cable laying ship in the direction of cable laying, and releasing the steel cable to launch;

step S13, after the steel cable is released to a preset length, connecting the other end of the steel cable with one end of the connection station, connecting the other end of the connection station with the submarine cable, and laying the connection station to enable the connection station to reach the seabed;

the offshore recovery method of the underwater docking station comprises the following steps,

step S21, positioning the position of a fault connection station, and positioning the position and the direction of the fault connection station corresponding to the submarine cable;

step S22, after the cable laying ship sails along the direction of the sea cable for a preset distance, pulling up the mushroom anchor at the tail end of the steel cable;

step S23, the docking station is recovered by pulling up the wire rope.

Further, the method further comprises testing the docking station before dropping the mushroom anchor to confirm that the docking station is working properly.

Further, the offshore deployment method of the underwater docking station further comprises the following steps,

and step S14, testing the docking station again after the docking station arrives at the seabed to confirm that the docking station can work normally, detecting whether the attitude of the docking station is correct or not, if not, recovering the submarine cable, correcting the attitude of the docking station by utilizing the self-attitude adjusting capability of the docking station, and enabling the docking station to arrive at the seabed again.

Further, the offshore deployment method of the underwater docking station further comprises the following steps,

and step S15, sending an activation signal to the underwater sound control releaser, and releasing the buoyancy block on the docking station after the underwater sound control releaser receives the activation signal, thereby recovering the buoyancy block.

On the other hand, the invention also provides an offshore laying and recovery system for the underwater docking station, which comprises a depth sounder, a mushroom anchor throwing device, docking station connecting equipment, a docking station laying device, a fault docking station positioning device, a submarine cable detection device and a cable fishing machine;

the depth sounder is used for selecting a docking station meeting preset conditions to be deployed in a sea area;

the mushroom anchor throwing device is used for throwing a mushroom anchor connected with one end of a steel cable, the cable laying ship runs towards the cable laying direction, and the steel cable is released to launch;

the connection station connecting equipment is used for connecting the other end of the steel cable with one end of the connection station and connecting the other end of the connection station with the submarine cable; the docking station laying device is used for laying the docking station to enable the docking station to reach the seabed;

the device comprises a fault connection station positioning device, a submarine cable detection device and a submarine cable detection device, wherein the fault connection station positioning device is used for positioning the position of a fault connection station, and the submarine cable detection device is used for positioning the position and the direction of a submarine cable corresponding to the fault connection station;

the cable fishing machine is used for pulling up the mushroom anchor and the steel cable after the cable distribution ship sails along the direction of the sea cable for a preset distance, thereby recovering the connection station.

Further, the offshore deployment and recovery system for the underwater docking station further comprises a docking station testing device, wherein the docking station testing device is used for testing the docking station before the mushroom anchor is thrown down and after the docking station reaches the seabed, so as to confirm that the docking station can work normally.

Further, the offshore deployment and recovery system of the underwater docking station further comprises a releaser deck unit, an underwater acoustic control releaser and a buoyancy block,

the underwater acoustic control releaser is communicated with the releaser deck unit and is used for detecting whether the attitude of the docking station is correct or not, if not, the docking station laying device acquires an incorrect attitude signal sent by the underwater acoustic control releaser through the releaser deck unit, then recovers the submarine cable, utilizes the self attitude adjustment capability of the docking station to enable the attitude of the docking station to be correct, and enables the docking station to reach the seabed again;

the buoyancy block is used for keeping the docking station in a correct posture in the process of laying the docking station;

the releaser deck unit is also used for sending an activation signal to the underwater sound control releaser, and the underwater sound control releaser releases the buoyancy block on the docking station after receiving the activation signal.

The beneficial effects of the invention include: when the docking station is deployed, a sea area is deployed by selecting the docking station meeting preset conditions, a mushroom anchor connected with one end of a steel cable is thrown down, the steel cable is released to launch, after the steel cable is released to a preset length, the other end of the steel cable is connected with one end of the docking station, the other end of the docking station is connected with a submarine cable, and the docking station is deployed to reach the seabed, so that the deployment depth of the docking station is prevented from being limited by the length of a cable, the influence of ocean current on the docking station is reduced, and the high-efficiency deployment of the docking station is realized;

when the connecting station is recovered, the position of the fault connecting station is positioned, the position and the direction of the fault connecting station corresponding to the submarine cable are positioned, after a cable distribution ship sails in the direction of the submarine cable for a preset distance, the mushroom anchor at the tail end of the steel cable is pulled, and the connecting station is recovered by pulling up the steel cable; the high-efficiency recovery of the docking station is realized;

drawings

FIG. 1 is a schematic flow chart of an offshore deployment method of a underwater docking station according to an embodiment of the invention;

FIG. 2 is a schematic flow chart of an offshore recovery method of a underwater docking station according to an embodiment of the invention;

FIG. 3 is a schematic view of a steel cable according to an embodiment of the present invention being released for launching;

FIG. 4 is a schematic view of a lay-up docking station according to an embodiment of the present invention;

figure 5 is a schematic view of a docking station according to an embodiment of the invention reaching the seabed;

FIG. 6 is a schematic view of pulling up the mushroom anchor at the end of a wire rope according to an embodiment of the present invention;

fig. 7 is a schematic view of a recycling docking station according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further 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 invention and are not intended to limit the invention.