Hydrophone array cable laying method based on power springs

Abstract

The invention belongs to the technical field of underwater unmanned laying, and particularly relates to a hydrophone array cable laying method based on a power spring. The power spring driving vehicle is used for laying the submarine hydrophone array cable, and the power spring driving vehicle is not provided with extra driving devices such as propellers and has the advantages of low noise and low cost; a plurality of groups of box bodies are carried, each group of box bodies is put at a specified position according to task planning, a plurality of groups of power spring driving vehicles are stored in each group of box bodies, and when the circumferential side walls of the box bodies are opened, each group of power spring driving vehicles are used for laying hydrophone array cables in a single direction; a plurality of groups of power spring driving vehicles are combined to complete hydrophone array cable laying tasks in different directions, a hydrophone array cable communication array can be quickly and automatically constructed in a target sea area by taking a central control cabin in each group of box bodies as a signal transmission intermediate node, only putting needs to be executed, other subsequent control operations do not need to be executed, and the working efficiency is greatly improved. The cable laying device has the advantages of simple operation and rapid cable laying.

Description

Technical Field

[0001] The invention belongs to the technical field of underwater unmanned deployment, and in particular relates to a hydrophone array cable deployment method based on a power spring. Background Art

[0002] Compared with traditional sound pressure hydrophones, vector hydrophones can obtain the vibration velocity information of sound propagation. The joint processing of sound pressure and vibration velocity can effectively suppress isotropic noise interference. Different joint methods can provide multiple sets of different directivities, and the directivity can be used to suppress strong interference in different directions. It can meet the new requirements of underwater target detection. Fiber optic hydrophone technology has appeared in people's vision based on the development of fiber optic acoustic sensing technology and optoelectronic technology, and has become a new hope for underwater acoustic signal detection in the future. Traditional optical cable laying methods often rely on manual operation or large ship-mounted equipment, which is not only inefficient but also costly. It also faces many challenges brought by the complex marine environment. Summary of the invention

[0003] The object of the present invention is to provide a method for laying a hydrophone array cable based on a dynamic spring.

[0004] A method for laying a hydrophone array cable based on a power spring comprises the following steps: a box is dropped into a target sea area, a buoyancy adjustment module is arranged on the outside of the box, a central control cabin and a power spring driving vehicle are arranged inside the box, and the box adjusts its posture and sinking speed through the buoyancy adjustment module during the sinking process so that the box can sit stably on the bottom; the starting end of the hydrophone array cable is fixed in the central control cabin, and after the side wall of the box is opened, the power spring driving vehicle carries a hydrophone array cable reel out of the box and moves on the seabed, and the laying of the hydrophone array cable is completed during the movement.

[0005] Furthermore, the power spring driven vehicle comprises a frame, the bottom of the frame moves through the left and right track mechanisms, and a power spring driving device and a cable releasing mechanism are arranged on the inner side of the frame; the power spring driving device comprises a wheel disc, a protective storage bin, a transmission shaft and a bevel gear shaft, the wheel disc is equipped with a driving motor, and clamping devices are evenly arranged along the circumference of the wheel disc, each group of clamping devices clamps a group of power spring driving shafts, and the lower end of each group of power spring driving shafts is provided with a gear meshing with the bevel gear shaft, and all power spring driving shafts are located in the protective storage bin; the bevel gear shaft is fixed to the bottom of the frame, the bevel gear shaft is connected to the driving wheel in the track mechanism on one side, and the transmission shaft is connected to the driven wheels of the track mechanisms on both sides;

[0006] When the power springs in a group of power spring drive shafts are released, the power spring drive shafts rotate, driving the driving wheels connected to them to rotate through the bevel gear shaft, and then driving the track mechanisms on the left and right sides of the bottom of the frame to move through the transmission shaft; when all the power springs in this group are released, the drive motor controls the wheel disc to rotate, and rotates the next group of power spring drive shafts to a specified position so that the gears at their lower ends mesh with the bevel gear shaft, and then continues to provide power to the power spring drive vehicle by releasing the power springs.

[0007] Furthermore, the box stores multiple groups of power spring driven vehicles. When the circumferential side walls of the box are opened, each group of power spring driven vehicles lays the hydrophone array cable in a single direction, and multiple groups of power spring driven vehicles jointly complete the hydrophone array cable laying tasks in different directions.

[0008] Furthermore, the surface ship carries multiple groups of boxes, and each group of boxes is dropped at a designated location according to the mission plan. The central control cabin in each group of boxes serves as an intermediate node for signal transmission across the cable. When the power spring-driven vehicles in all the boxes complete the hydrophone array cable deployment task, a communication array is formed.

[0009] The beneficial effects of the present invention are:

[0010] The present invention adopts a power spring driven vehicle to carry out the seabed hydrophone array cable laying work. The power spring driven vehicle does not have additional driving devices such as propellers, and has the advantages of low noise and low cost. By carrying multiple sets of boxes, each set of boxes is dropped at a designated position according to the task plan, and multiple sets of power spring driven vehicles are stored in each set of boxes. When the circumferential side walls of the boxes are opened, each set of power spring driven vehicles lays the hydrophone array cable in a single direction, and multiple sets of power spring driven vehicles jointly complete the hydrophone array cable laying tasks in different directions. Through the central control cabin in each set of boxes as an intermediate node for signal transmission, a hydrophone array cable communication array can be quickly and automatically constructed in the target sea area. Only the dropping needs to be executed, and no other control operations need to be performed subsequently. It has the advantages of simple operation and rapid cable laying. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an overall schematic diagram of the power spring driven vehicle in the present invention.

[0012] Figure 2 It is a schematic diagram of the box and its buoyancy adjustment module in the present invention.

[0013] Figure 3 It is a schematic diagram of laying out the hydrophone array cable after the box is unfolded in the present invention. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with the accompanying drawings.

[0015] A power spring is a machine that converts the elastic potential energy of a compressed or stretched spring into mechanical kinetic energy. Its conversion process is actually a working cycle process. Simply put, it is to generate kinetic energy by driving the trolley through the compressed or stretched spring, thereby driving the hydrophone array cable connected to the packaged electronic cabin to move around the electronic cabin in a specified route. Since a spring is an elastic part that uses elasticity to store and output energy, parts made of elastic materials deform under the action of external forces and return to their original shape after the external forces are removed. Due to this characteristic, the present invention uses a potential energy trolley driven by multiple power springs to lay hydrophone array cables. It is not only concealed but also can calculate and determine how many energy storage springs need to be connected in parallel according to the length of the laid cable, which is convenient and reliable.

[0016] Before deployment begins, key equipment such as the spiral arch winding device and the electronic compartment are loaded into the container. The spiral arch winding device is used to wind the hydrophone array cable into a compact shape for easy storage and transportation. The electronic compartment is responsible for providing buoyancy regulation and data processing. During the loading process, it is necessary to ensure that all equipment is securely fixed to avoid displacement or damage during transportation and launching.

[0017] The container is placed underwater through the moon pool of the laying ship, so that the container enters the water in a stable posture. The moon pool is an important structural channel connecting the main deck and the bottom of the ship. It is located in the middle of the laying ship to reduce the stability of the cabin. After that, the container is dropped in the target sea area. The outside of the container is equipped with a buoyancy adjustment module, and the inside of the container is equipped with a central control cabin and a power spring drive vehicle, such as Figure 2 As shown, during the sinking process, the box adjusts its attitude and sinking speed through the buoyancy adjustment module, so that the box can sit on the bottom stably; the starting end of the hydrophone array cable is fixed in the central control cabin, and after the side wall of the box is opened, the power spring drives the vehicle to carry the hydrophone array cable ball out of the box and move on the seabed, and the hydrophone array cable is deployed during the movement.

[0018] like Figure 3 As shown, a plurality of groups of power spring-driven vehicles can be stored in the box. When the circumferential side wall of the box is opened, each group of power spring-driven vehicles lays the hydrophone array cable in a single direction, and a plurality of groups of power spring-driven vehicles jointly complete the hydrophone array cable laying tasks in different directions.

[0019] Surface ships can carry multiple groups of boxes, and each group of boxes will be dropped at a designated location according to the mission plan. The central control cabin in each group of boxes serves as an intermediate node for signal transmission across cables. When the power spring-driven vehicles in all the boxes complete the hydrophone array cable deployment task, a communication array is formed.

[0020] like Figure 1As shown, the power spring driven vehicle includes a frame, the bottom of the frame moves through the left and right track mechanisms 14, and the inner side of the frame is provided with a power spring driving device and a cable releasing mechanism 19; the power spring driving device includes a wheel plate 12, a protective storage bin 13, a transmission shaft 15 and a bevel gear shaft 17, the wheel plate 12 is equipped with a driving motor 11, and clamping devices are evenly arranged along the circumference of the wheel plate 12, each group of clamping devices clamps a group of power spring driving shafts 16, and each group of power spring driving shafts 16 is provided with a gear meshing with the bevel gear shaft 17 at the lower end, and all power spring driving shafts 16 are located in the protective storage bin 13; the bevel gear shaft 17 is fixed at the bottom of the frame, the bevel gear shaft 17 is connected to the driving wheel 18 in the track mechanism 14 on one side, and the transmission shaft 15 is connected to the driven wheels of the track mechanisms 14 on both sides. When the power springs in a group of power spring drive shafts 16 are released, the power spring drive shafts 16 rotate, and the driving wheel 18 connected thereto rotates through the bevel gear shaft 17, and then the crawler mechanisms 14 on the left and right sides of the bottom of the frame move through the transmission shaft 15; when all the power springs in this group are released, the drive motor 11 controls the wheel disc 12 to rotate, and rotates the next group of power spring drive shafts 16 to a specified position so that the gear at its lower end engages with the bevel gear shaft 17, and then continues to provide power to the power spring driven vehicle by releasing the power springs.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for laying a hydrophone array cable based on a dynamic spring, characterized in that: A box is dropped into the target sea area, with a buoyancy adjustment module provided on the outside of the box, and a central control cabin and a power spring-driven vehicle provided inside the box. During the sinking process, the box adjusts its posture and sinking speed through the buoyancy adjustment module so that the box can sit stably on the bottom; the starting end of the hydrophone array cable is fixed in the central control cabin. After the side wall of the box is opened, the power spring-driven vehicle carries the hydrophone array cable reel out of the box and moves on the seabed, completing the deployment of the hydrophone array cable during the movement.

2. A method for laying a hydrophone array cable based on a dynamic spring according to claim 1, characterized in that: The power spring driving vehicle comprises a vehicle frame, the bottom of the vehicle frame moves through the left and right crawler mechanisms (14), and the inner side of the vehicle frame is provided with a power spring driving device and a cable releasing mechanism (19); the power spring driving device comprises a wheel disc (12), a protective storage bin (13), a transmission shaft (15) and a bevel gear shaft (17); the wheel disc (12) is equipped with a driving motor (11), and clamping devices are evenly arranged along the circumference of the wheel disc (12), each group of clamping devices clamps a group of power spring driving shafts (16), and each group of power spring driving shafts (16) is provided with a gear meshing with the bevel gear shaft (17) at the lower end, and all power spring driving shafts (16) are located in the protective storage bin (13); the bevel gear shaft (17) is fixed at the bottom of the vehicle frame, the bevel gear shaft (17) is connected to the driving wheel (18) in the crawler mechanism (14) on one side, and the transmission shaft (15) is connected to the driven wheels of the crawler mechanisms (14) on both sides; When the power springs in a group of power spring drive shafts (16) are released, the power spring drive shafts (16) are rotated, and the driving wheels (18) connected thereto are driven to rotate through the bevel gear shaft (17), and then the crawler mechanisms (14) on the left and right sides of the bottom of the frame are driven to move through the transmission shaft (15); when all the power springs in the group are released, the drive motor (11) controls the wheel disc (12) to rotate, and the next group of power spring drive shafts (16) are rotated to a specified position so that the gears at the lower ends thereof mesh with the bevel gear shaft (17), and then the power springs are continuously released to provide power to the power spring drive vehicle.

3. The method for laying a hydrophone array cable based on a dynamic spring according to claim 1, characterized in that: The box body stores a plurality of groups of power spring driven vehicles. When the circumferential side wall of the box body is opened, each group of power spring driven vehicles lays the hydrophone array cable in a single direction. The plurality of groups of power spring driven vehicles jointly complete the hydrophone array cable laying tasks in different directions.

4. The method for laying a hydrophone array cable based on a dynamic spring according to claim 1, characterized in that: Surface ships carry multiple groups of boxes, which are dropped at designated locations according to mission planning. The central control cabin in each group of boxes serves as an intermediate node for signal transmission across cables. When the powered spring-driven vehicles in all boxes complete the hydrophone array cable deployment mission, a communication array is formed.

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