A deep-sea seabed sensing and acquisition device

Abstract

This application provides a deep-sea seabed sensing and acquisition device, belonging to the technical field of marine monitoring devices. It includes a pressure-resistant chamber and a pressure-resistant cover, which enclose an equipment compartment. The equipment compartment houses a battery pack, a control circuit assembly, and a detector assembly. The side wall of the pressure-resistant cover has hydrophone mounting holes, transponder mounting holes, and plug mounting holes that connect to the equipment compartment. Pressure-resistant hydrophone heads and acoustic transponder heads extend outwards from the hydrophone mounting holes. In the entire device, the battery pack, control circuit assembly, and detector assembly are all installed within the mutually sealed pressure-resistant chamber and cover. Only the detection end of the pressure-resistant hydrophone head, the response end of the acoustic transponder head, and the pressure-resistant multi-core plug are located on the outside. All wiring between components is sealed within the pressure-resistant chamber and cover. The entire deep-sea seabed sensing and acquisition device has strong high-pressure resistance and waterproof performance, and can be used in deeper water environments.

Description

Technical Field

[0001] This application belongs to the field of marine monitoring device technology, and more specifically, relates to a deep-sea seabed sensing and acquisition device. Background Technology

[0002] The seabed sensing and acquisition device is a seabed instrument system that integrates sensing, acquisition, conversion, storage, and power supply. The system mainly includes a sensing and acquisition detector or hydrophone that converts weak seabed vibration signals or weak water pressure fluctuation signals into voltage signals; a low-power analog-to-digital converter module that performs pre-filtering and amplification of the acquired electrical signals; a storage system module that records and stores the converted data at high speed; and a lithium battery module that provides the necessary power to the system.

[0003] In the prior art, Chinese utility model patent application CN221841219U disclosed a rapid mass production subsea node system. In this design, a front-end acquisition sensor unit integrating a detector and hydrophone, a data conversion and storage unit with a battery pack, and an underwater acoustic transponder are designed as three independent modules. The data conversion and storage unit has a pin connector and exposed terminals, and connects to the front-end acquisition sensor unit via the pin connector, corner connector, and cable. Because the pin connector, exposed terminals, corner connector, and cable are all exposed in the water, the waterproofing capability is limited, restricting the entire device to shallow water environments of no more than 75 meters and preventing its application in deep water environments. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this application provides a deep-sea seabed sensing and acquisition device that can be used for detecting vibration signals and water pressure disturbance signals at deep seabed.

[0005] To achieve the above objectives, the technical solution of this application provides a deep-sea seabed sensing and acquisition device, including a pressure-resistant cabin base and a pressure-resistant cabin cover sealed and fastened to the top of the pressure-resistant cabin base. The pressure-resistant cabin base and the pressure-resistant cabin cover enclose an equipment compartment, in which a battery pack, a control circuit assembly, and a detector assembly are installed. The side wall of the pressure-resistant cabin cover has a hydrophone mounting hole, a transponder mounting hole, and a plug mounting hole that connect to the equipment compartment. A pressure-resistant hydrophone head is sealed and installed in the hydrophone mounting hole, and the detection end of the pressure-resistant hydrophone head extends out of the pressure-resistant cabin cover from the hydrophone mounting hole. An acoustic transponder head is sealed and installed in the transponder mounting hole, and the response end of the acoustic transponder head extends out of the pressure-resistant cabin cover from the transponder mounting hole. A pressure-resistant multi-core plug is sealed and installed in the plug mounting hole. The detector assembly, the pressure-resistant hydrophone head, the acoustic transponder head, and the pressure-resistant multi-core plug are all connected to the control circuit assembly and powered by the battery pack.

[0006] In the entire deep-sea seabed sensing and acquisition device, the battery pack, control circuit assembly, and detector assembly are all installed inside a pressure-resistant chamber and pressure-resistant cover that are sealed to each other. Only the detection end of the pressure-resistant hydrophone head used to detect water sound waves and the response end of the acoustic transponder head used to confirm direction are located on the outside. All wiring between components is sealed inside the pressure-resistant chamber and pressure-resistant cover. The entire deep-sea seabed sensing and acquisition device has strong high pressure resistance and waterproof performance and can be used in deeper water environments.

[0007] Optionally, the pressure tank base is circumferentially distributed with tank base bolt holes, and the bottom edge of the pressure tank cover is distributed with cover bolt holes aligned with the tank base bolt holes. The pressure tank base and the pressure tank cover are fixedly connected to each other by bolts passing through the tank base bolt holes and the cover bolt holes from the bottom. A connector platform is provided around the top of the pressure tank base, with the outer wall of the connector platform abutting against the inner wall of the pressure tank cover. An O-ring is clamped between the outer wall of the connector platform and the inner wall of the pressure tank cover. The pressure tank base and the pressure tank cover are connected to each other by bolts and sealed by O-rings to prevent water from entering.

[0008] Optionally, the hydrophone mounting hole has a small-diameter end communicating with the equipment compartment and a large-diameter end communicating with the outside of the pressure-resistant cover, with an abutment end at the junction of the small-diameter end and the large-diameter end; the pressure-resistant hydrophone head includes a hydrophone base, a piezoelectric ceramic tube, an end cap, an injection-molded head, and a locking nut. The hydrophone base has an abutment platform, a sealing platform on one side of the abutment platform, a threaded post on the side of the sealing platform away from the abutment platform, a second sealing platform on the side of the abutment platform away from the sealing platform, and a sleeve post at the end of the second sealing platform away from the abutment platform. The piezoelectric ceramic tube is spaced out and sleeved on the outside of the sleeve post. The end cap is threadedly connected to the end of the sleeve post away from the abutment platform. The two ends of the ceramic tube are clamped between end cap one and sealing platform two. Injection head one is sealed and wrapped around the outside of end cap one, piezoelectric ceramic tube and sealing platform two by injection molding. The end of the hydrophone base with threaded post one passes through the hydrophone mounting hole from the outside. The abutment platform one abuts with abutment end one. Threaded post one extends into the equipment compartment. Locking nut one is screwed on the outside of threaded post one. Locking nut one is pressed and abutted with the end of small diameter end one away from large diameter end one. O-ring two is clamped between abutment platform one and abutment end one. Sealing platform one is located inside small diameter end one. O-ring three is clamped between sealing platform one and small diameter end one. The piezoelectric ceramic tube is connected to the control circuit assembly and is powered by the battery pack. The hydrophone base serves as the mounting base for the pressure-resistant hydrophone head, allowing for the assembly of all components of the head. O-rings two and three seal the hydrophone mounting holes, preventing water from entering the equipment compartment and ensuring waterproofing.

[0009] Optionally, the hydrophone base is made of metal, the end cap is made of insulating material, and the pressure-resistant hydrophone head also includes an insulating ring. The insulating ring is sleeved on the outside of the socket post and clamped between the piezoelectric ceramic tube and the sealing platform. The end cap and the insulating ring are made of insulating ceramic or insulating plastic to prevent the piezoelectric ceramic tube from conducting with the metal hydrophone base.

[0010] Optionally, the transponder mounting hole has a small-diameter end two communicating with the equipment compartment and a large-diameter end two communicating with the outside of the pressure-resistant chamber cover, and an abutment end two is provided at the junction of the small-diameter end two and the large-diameter end two; the acoustic transponder head includes a transponder base, a piezoelectric ceramic plate, an injection-molded head two and a locking nut two; the hydrophone base has an abutment platform two, a sealing platform three on one side of the abutment platform two, a threaded post two provided on the side of the sealing platform three away from the abutment platform two, a sealing platform four on the side of the abutment platform two away from the sealing platform three, and a transponder groove provided at the end of the sealing platform four away from the abutment platform two; the piezoelectric ceramic plate is insulated from... The transponder base is glued to the transponder's recess. Injection-molded head two is sealed and wrapped around the outer side of sealing platform four and the piezoelectric ceramic sheet via injection molding. The end of threaded post two of the transponder base passes through the transponder mounting hole from the outside, abutting platform two abutting end two, and threaded post two extends into the equipment compartment. Locking nut two is screwed onto the outside of threaded post two, pressing against the end of small-diameter end two away from large-diameter end two. Sealing platform three is located inside small-diameter end two, and O-ring four is clamped between sealing platform three and small-diameter end two. The piezoelectric ceramic sheet is connected to the control circuit assembly and is powered by the battery pack. The transponder base serves as the mounting base for the acoustic transponder head, allowing the various components of the acoustic transponder head to be assembled and installed. The O-ring four seals the transponder mounting hole, preventing water from entering the equipment compartment through the transponder mounting hole and ensuring waterproof performance.

[0011] Optionally, the system also includes two sets of protective covers. Each set includes a mounting ring and a perforated cover fixedly connected to the mounting ring. One set of protective covers has its perforated cover positioned outside the detection end of the pressure-resistant hydrophone head, and its mounting ring is connected to the end of the hydrophone mounting hole via a circumferential bolt. The other set of protective covers has its perforated cover positioned outside the response end of the acoustic transponder head, and its mounting ring is connected to the end of the transponder mounting hole via a circumferential bolt. The protective covers are made of stainless steel and protect both the pressure-resistant hydrophone head and the acoustic transponder head. The perforated cover allows water to pass through without affecting signal reception and transmission.

[0012] Optionally, the plug mounting hole has a small-diameter end three communicating to the equipment compartment and a large-diameter end three communicating to the outside of the pressure-resistant chamber cover, with an abutment end three at the junction of the small-diameter end three and the large-diameter end three; the pressure-resistant multi-core plug includes a plug base, a locking nut three, and pins arranged inside the plug base; the plug base has an abutment platform three, a sealing platform five on one side of the abutment platform three, a threaded post three on the side of the sealing platform five away from the abutment platform three, and a threaded post four on the side of the abutment platform three away from the sealing platform five; the end of the plug base with the threaded post three passes through the plug mounting hole from the outside, the abutment platform three abuts against the abutment end three, the sealing platform five is located inside the small-diameter end three, and the sealing platform five abuts against the small-diameter end three. An O-ring seal five is held between the three ends. The threaded post three extends into the equipment compartment. The locking nut three is screwed onto the outside of the threaded post three. The locking nut three presses against the end of the small-diameter end three away from the large-diameter end three. The pin is connected to the control circuit assembly and is powered by the battery pack. There are three plug mounting holes and three sets of pressure-resistant multi-core plugs. The three sets of pressure-resistant multi-core plugs are installed in the three plug mounting holes respectively. The first pressure-resistant multi-core plug is used to charge the battery pack. The second pressure-resistant multi-core plug is used to download data stored in the control circuit assembly. The third pressure-resistant multi-core plug is used to program and debug the control circuit assembly through an external program.

[0013] Optionally, the system also includes several pressure plates and several clamping screws. The battery pack has several battery cells, and the pressure-resistant housing has several battery recesses. The battery cells are embedded in the corresponding battery recesses. The bottom of the pressure-resistant housing has several screw holes located between two adjacent battery recesses. The pressure plates are placed on top of adjacent battery cells. The clamping screws pass through the pressure plates from the top and are screwed into the screw holes. The screw heads of the clamping screws press against the top of the pressure plates, thus pressing the pressure plates against the top of the corresponding battery cells. After the battery cells are placed in their corresponding battery recesses, the pressure plates are tightened to secure the battery cells.

[0014] Optionally, the detector assembly includes a detector housing, which has mounting cavity one, mounting cavity two, and mounting cavity three. X-axis detector assemblies, Y-axis detector assemblies, and Z-axis detector assemblies are respectively installed in mounting cavity one, mounting cavity two, and mounting cavity three. Bearing seats one are provided at both ends of mounting cavity one, extending horizontally along the Y-axis. The X-axis detector assembly includes an eccentric horizontal hull one and a cylindrical detector body one fixedly mounted on the eccentric horizontal hull one. The cylindrical detector body one extends horizontally along the X-axis, and both ends of the eccentric horizontal hull one are rotatably mounted on the bearing seats one via bearings. Bearing seats two are provided at both ends of mounting cavity two, extending horizontally along the X-axis. The Y-axis detector assembly includes an eccentric horizontal hull two and a cylindrical detector body two fixedly mounted on the eccentric horizontal hull two. The cylindrical detector body two extends horizontally along the Y-axis, and the eccentric... Both ends of the horizontal hull 2 ​​are mounted on bearing seats 2 via bearings; both ends of the mounting cavity 3 are provided with bearing seats 3, and the two bearing seats 3 extend and are arranged along the horizontal direction of the X-axis or the horizontal direction of the Y-axis. The Z-axis detector assembly includes an eccentric horizontal hull 3, an eccentric horizontal hull 4, and a cylindrical detector body 3 fixedly mounted on the eccentric horizontal hull 4. The cylindrical detector body 3 extends numerically along the Z-axis direction. Both ends of the eccentric horizontal hull 3 are provided with bearing seats 4, and the two bearing seats 4 are arranged horizontally along the direction perpendicular to the arrangement of the two bearing seats 3. Both ends of the eccentric horizontal hull 3 are mounted on bearing seats 3 via bearings; both ends of the eccentric horizontal hull 4 are mounted on bearing seats 4 via bearings. The cylindrical detector body 1, cylindrical detector body 2, and cylindrical detector body 3 are all connected to the control circuit assembly and powered by the battery pack. The mounting cavities 1, 2, and 3 are filled with silicone oil.

[0015] The cylindrical detector bodies 1, 2, and 3 extend perpendicularly to each other, forming a three-part vibration sensor to accurately detect vibrations in all directions on the seabed. When the entire deep-sea seabed sensing and acquisition device is tilted in the water, the eccentric horizontal hull 1 rotates along the bearing and bearing seat 1 to the bottom under gravity, returning the cylindrical detector body 1 to its upright position. The eccentric horizontal hull 2 ​​also rotates along the bearing and bearing seat 2 to the bottom under gravity, returning the cylindrical detector body 2 to its horizontal position. The eccentric horizontal hull 3 rotates along the bearing seat 3 to the bottom, achieving uprighting in one direction, and the eccentric horizontal hull 4 rotates along the bearing seat 4 to the bottom, achieving uprighting in the other direction, returning the cylindrical detector body 3 to its vertical position. For the horizontally arranged cylindrical detector bodies one and two, due to their cylindrical shape and rotational symmetry along their axis, only one degree of rotational freedom is needed to rotate the deep-sea seabed sensing and acquisition device to a horizontal position, regardless of its tilt direction. However, since the cylindrical detector body three is vertical, two degrees of rotational freedom are required to ensure it returns to its normal position when tilted at different angles. Therefore, bearing seats three and four, with their axes perpendicular to each other, are needed for its installation.

[0016] Optionally, the top of the pressure tank seat is provided with several support columns, the tops of which abut against the inner sidewall of the top of the pressure tank cover. The support columns can provide support within the equipment compartment, preventing the pressure tank seat and pressure tank cover from deforming due to water pressure.

[0017] The advantages of the technical solution in this application compared to the prior art are as follows:

[0018] In the entire deep-sea seabed sensing and acquisition device, the battery pack, control circuit assembly, and detector assembly are all installed inside a pressure-resistant chamber and pressure-resistant cover that are sealed to each other. Only the detection end of the pressure-resistant hydrophone head used to detect water sound waves and the response end of the acoustic transponder head used to confirm direction are located on the outside. All wiring between components is sealed inside the pressure-resistant chamber and pressure-resistant cover. The entire deep-sea seabed sensing and acquisition device has strong high pressure resistance and waterproof performance and can be used in deeper water environments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of the deep-sea seabed sensing and data acquisition device;

[0021] Figure 2 A schematic diagram of the internal structure of a deep-sea seabed sensing and data acquisition device;

[0022] Figure 3 This is a schematic diagram of the connection structure between the pressure tank seat and the pressure tank cover;

[0023] Figure 4 Schematic diagram of the mounting structure for a pressure-resistant hydrophone head;

[0024] Figure 5 A schematic diagram of the acoustic transponder head mounting structure;

[0025] Figure 6 This is a schematic diagram of the wiring structure of an acoustic transponder head.

[0026] Figure 7 A schematic diagram of the installation structure of the pressure-resistant hydrophone head and protective cover;

[0027] Figure 8 A schematic diagram of the installation structure of the acoustic transponder head and protective cover;

[0028] Figure 9 Schematic diagram of the installation structure of a pressure-resistant multi-core plug;

[0029] Figure 10 This is a schematic diagram of a pressure-resistant multi-core plug structure;

[0030] Figure 11 This is a schematic diagram of the installation structure of the clamping screws and pressure plate;

[0031] Figure 12 A schematic diagram of the battery pack and support column mounting structure;

[0032] Figure 13 This is a schematic diagram of the internal structure of the detector assembly.

[0033] Icons: 11. Pressure tank seat; 12. Pressure tank cover; 101. Seat bolt holes; 102. Connector platform; 103. O-ring one; 104. Hydrophone mounting hole; 105. Transponder mounting hole; 106. Plug mounting hole; 107. Cover bolt holes; 108. Small diameter end one; 109. Large diameter end one; 110. Abutment end one; 111. Small diameter end two; 112. Large diameter end two; 113. Abutment end two; 114. Small diameter end three; 115. Large diameter end three; 116. Abutment end three; 117. Battery recess; 118. Clamping screw; 119. Pressure plate; 120. Screw hole; 121. Support column; 13. Boss; 14. 1. Sealing ring groove 1; 15. T-shaped protrusion; 16. Mounting groove; 2. Equipment compartment; 3. Battery pack; 31. Battery pack; 4. Control circuit assembly; 5. Detector assembly; 501. Detector box; 502. Mounting cavity 1; 503. Mounting cavity 2; 504. Mounting cavity 3; 505. Bearing housing 1; 506. Eccentric horizontal hull 1; 507. Cylindrical detector body 1; 508. Bearing housing 2; 509. Eccentric horizontal hull 2; 510. Cylindrical detector body 2; 511. Bearing housing 3; 512. Eccentric horizontal hull 3; 513. Eccentric horizontal hull 4; 514. Cylindrical detector body 3; 515. Bearing housing 4; 51. 6. Sealing head; 601. Pressure-resistant hydrophone head; 602. Hydrophone base; 603. Piezoelectric ceramic tube; 604. End cap 1; 605. Injection head 1; 606. Locking nut 1; 607. Abutment platform 1; 608. Sealing platform 1; 609. Threaded post 1; 610. Sealing platform 2; 611. Socket post; 612. O-ring 2; 613. Insulating ring; 61. Sealing ring groove 2; 62. Sealing ring groove 3; 63. Limiting groove 1; 64. Wiring hole 1; 65. Wiring channel 1; 66. Step; 7. Acoustic transponder head; 701. Transponder base; 702. Piezoelectric ceramic plate; 703. Injection head 2; 704. Locking nut II; 705. Abutment platform II; 706. Sealing platform III; 707. Threaded post II; 708. Sealing platform IV; 709. Transponder recess; 710. O-ring IV; 71. Sealing ring groove IV; 72. Limiting groove II; 73. Wiring hole II; 74. Wiring channel II; 75. Wiring notch; 8. Pressure-resistant multi-core plug; 802. Plug base; 803. Locking nut III; 804. Pin; 805. Abutment platform III; 806. Sealing platform V; 807. Threaded post III; 808. Threaded post IV; 809. O-ring V; 81. Sealing ring groove V; 9. Protective cover; 91. Mounting ring; 92. Hollowed-out cover. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0035] Example 1:

[0036] This embodiment provides a deep-sea seabed sensing and acquisition device, based on... Figures 1 to 3 As shown, the device includes a pressure-resistant chamber base 11 and a pressure-resistant chamber cover 12 sealed and fastened to the top of the pressure-resistant chamber base 11. The pressure-resistant chamber base 11 and the pressure-resistant chamber cover 12 enclose an equipment compartment 2. A battery pack 3, a control circuit assembly 4, and a detector assembly 5 are installed inside the equipment compartment 2. The battery pack 3, control circuit assembly 4, and detector assembly 5 are isolated from the water within the equipment compartment 2. The side wall of the pressure-resistant chamber cover 12 has a hydrophone mounting hole 104, a transponder mounting hole 105, and a plug mounting hole 106 communicating with the equipment compartment 2. A pressure-resistant hydrophone head 6 is sealed and installed within the hydrophone mounting hole 104, and the detection end of the pressure-resistant hydrophone head 6 extends from the hydrophone mounting hole 104 out of the pressure-resistant chamber cover 12. The detection end of the pressure-resistant hydrophone head 6 is used to receive sound wave signals from the water. An acoustic transponder head 7 is sealed and installed inside the transponder mounting hole 105, and the responding end of the acoustic transponder head 7 extends from the transponder mounting hole 105 out of the pressure-resistant hatch cover 12. The responding end of the acoustic transponder head 7 is used to receive the excitation wave signal from the mother ship and make an accurate response. A pressure-resistant multi-core plug 8 is sealed and installed inside the plug mounting hole 106. The pins 804 of the pressure-resistant multi-core plug 8 are connected to the power input terminal and the data output terminal of the control circuit assembly 4, respectively, to charge the battery pack 3, download data stored in the control circuit assembly 4, and perform online programming and debugging of the internal circuit through external programs. The detector assembly 5, the pressure-resistant hydrophone head 6, the acoustic transponder head 7, and the pressure-resistant multi-core plug 8 are all connected to the control circuit assembly 4 and are powered by the battery pack 3.

[0037] In the entire deep-sea seabed sensing and acquisition device, the battery pack 3, control circuit assembly 4, and detector assembly 5 are all installed inside the pressure-resistant chamber 11 and pressure-resistant cover 12, which are sealed to each other. Only the detection end of the pressure-resistant hydrophone head 6 used to detect water sound waves, the response end of the acoustic transponder head 7 used to confirm the direction, and the pressure-resistant multi-core plug 8 are located on the outside. All the wiring between the components is sealed inside the pressure-resistant chamber 11 and pressure-resistant cover 12, which makes the entire deep-sea seabed sensing and acquisition device have strong high pressure resistance and waterproof performance, and can be used in deeper water environments.

[0038] In this embodiment, both the pressure-resistant chamber seat 11 and the pressure-resistant chamber cover 12 are made of pressure-resistant and corrosion-resistant 316 stainless steel or titanium alloy. As for the pressure-resistant multi-core plug 8, it can directly adopt the socket with pins from the Chinese utility model patent application number 2024228873277 entitled "Plug and Socket Connector for Seabed Sensing Nodes," which has good water resistance and can be directly submerged in water. Its structure is prior art and will not be described further. Of course, to prevent sediment from entering, a sealing cap can be screwed on; the external indicator light plug from the aforementioned patent application number 2024228873277 can be used as the sealing cap.

[0039] based on Figures 1 to 3 As shown, pressure tank seat bolt holes 101 are distributed circumferentially around the pressure tank seat 11, and pressure tank cover bolt holes 107 are distributed around the bottom edge of the pressure tank cover 12, aligned one by one with the pressure tank seat bolt holes 101. The pressure tank seat 11 and the pressure tank cover 12 are fixedly connected to each other by bolts passing through the pressure tank seat bolt holes 101 and the pressure tank cover bolt holes 107 from the bottom. An insertion platform 102 is provided around the top of the pressure tank seat 11. The outer side wall of the insertion platform 102 abuts against the inner side wall of the pressure tank cover 12 to achieve insertion and positioning. An O-ring seal 103 is clamped between the outer side wall of the insertion platform 102 and the inner side wall of the pressure tank cover 12. A sealing ring groove 14 is formed around the outer circumference of the insertion platform 102, and the O-ring seal 103 is disposed in the sealing ring groove 14. The pressure tank seat 11 and the pressure tank cover 12 are connected to each other by bolts and sealed by O-rings 103 to prevent water from entering. The number of sealing ring grooves 14 can be two or three in the longitudinal direction, and each sealing ring groove 14 is provided with an O-ring 103 to improve the sealing performance.

[0040] based on Figures 2 to 4As shown, the hydrophone mounting hole 104 has a small-diameter end 108 communicating with the equipment compartment 2 and a large-diameter end 109 communicating with the outside of the pressure-resistant cover 12. To ensure the strength and extension length at the hydrophone mounting hole 104, a boss 13 is provided on the inner side wall of the pressure-resistant cover 12, and the hydrophone mounting hole 104 is located on the boss 13. An abutment end 110 is provided at the junction of the small-diameter end 108 and the large-diameter end 109. The pressure-resistant hydrophone head 6 includes a hydrophone base 601, a piezoelectric ceramic tube 602, an end cap 603, an injection-molded head 604, and a locking nut 605. The hydrophone base 601 has an abutment platform 606, a sealing platform 607 on one side of the abutment platform 606, a threaded post 608 on the side of the sealing platform 607 away from the abutment platform 606, a second sealing platform 609 on the side of the abutment platform 606 away from the sealing platform 607, and a sleeve post 610 at the end of the second sealing platform 609 away from the abutment platform 606. The piezoelectric ceramic tube 602 is spaced and sleeved on the outside of the sleeve post 610. The end cap 603 is threadedly connected to the end of the sleeve post 610 away from the abutment platform 606. Specifically, it can be screwed onto the external thread at the end of the sleeve post 610 by its own internal thread, or it can be connected by bolts. The piezoelectric ceramic tube 602 is fixed by clamping its two ends between end cap 603 and sealing platform 609. After the piezoelectric ceramic tube 602 is installed, injection head 604 is sealed and wrapped around the outside of end cap 603, piezoelectric ceramic tube 602 and sealing platform 609 by injection molding to ensure waterproof performance. Injection head 604 is made of polyurethane material, which allows sound waves to be transmitted to piezoelectric ceramic tube 602 in water, ensuring accurate signal reception. In this embodiment, a limiting groove 63 is provided around the outer wall of sealing platform 609, and injection head 604 fills the limiting groove 63 during injection molding. After injection head 604 solidifies, the part of injection head 604 located in limiting groove 63 hooks onto sealing platform 609, ensuring a stable connection. The hydrophone base 601 has a threaded post 608 whose end extends from the outside into the hydrophone mounting hole 104. A mating platform 606 abuts against the mating end 110. The threaded post 608 extends into the equipment compartment 2. A locking nut 605 is screwed onto the outside of the threaded post 608. The locking nut 605 presses against the end of the small-diameter end 108 away from the large-diameter end 109, thus fixing the entire pressure-resistant hydrophone head 6 to the hydrophone mounting hole 104. An O-ring 611 is held between the mating platform 606 and the mating end 110. A sealing platform 607 is located inside the small-diameter end 108, and an O-ring 612 is held between the sealing platform 607 and the small-diameter end 108, thus sealing the hydrophone mounting hole 104. Among them, the end face of the abutting platform 606 and the abutting end 110 is provided with a sealing ring groove 61, and the O-ring 611 is set in the sealing ring groove 61.A sealing groove 62 is provided on the outer periphery of the sealing platform 607, and an O-ring 612 is disposed in the sealing groove 62. The piezoelectric ceramic tube 602 is connected to the control circuit assembly 4 and is powered by the battery pack 3.

[0041] In this embodiment, the hydrophone base 601 is made of metal, such as stainless steel or aluminum alloy, which has high structural strength. Since stainless steel or aluminum alloy is conductive, the end cap 603 is made of insulating material. The pressure-resistant hydrophone head 6 also includes an insulating ring 613, which is sleeved on the outside of the connecting post 610 and clamped between the piezoelectric ceramic tube 602 and the sealing platform 609. The end cap 603 and the insulating ring 613 are made of insulating ceramic or insulating plastic to prevent the piezoelectric ceramic tube 602 from conducting with the hydrophone base 601. To ensure the radial positioning of the piezoelectric ceramic tube 602, a step 66 is provided around the outer periphery of the insulating ring 613, and the end of the piezoelectric ceramic tube 602 is fitted onto the step 66 for limiting its position. Meanwhile, in order to facilitate the wiring of the positive and negative terminals of the piezoelectric ceramic tube 602 to the control circuit assembly 4, a wiring hole 64 communicating with the equipment compartment 2 is provided inside the hydrophone base 601, and two wiring channels 65 are provided. One wiring channel 65 connects the wiring hole 64 to the inside of the piezoelectric ceramic tube 602, and the other wiring channel 65 connects the wiring hole 64 to the outside of the piezoelectric ceramic tube 602. The positive and negative terminals of the piezoelectric ceramic tube 602 extend into the wiring hole 64 through the two wiring channels 65 and enter the equipment compartment 2 to connect with the control circuit assembly 4.

[0042] In other embodiments, for the non-conductive hydrophone base 601 made of rigid plastic, the insulating ring 613 can be omitted, and the piezoelectric ceramic tube 602 can be directly clamped between the end cap 603 and the sealing platform 609.

[0043] Furthermore, based on Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, the transponder mounting hole 105 has a small-diameter end 111 communicating with the equipment compartment 2 and a large-diameter end 112 communicating with the outside of the pressure-resistant cover 12. An abutment end 113 is located at the junction of the small-diameter end 111 and the large-diameter end 112. Similarly, to ensure the strength and extension length at the transponder mounting hole 105, a boss 13 is provided on the inner wall of the pressure-resistant cover 12, and the transponder mounting hole 105 is located on the boss 13. The acoustic transponder head 7 includes a transponder base 701, a piezoelectric ceramic plate 702, a molded head 703, and a locking nut 704. The hydrophone base 601 has an abutment platform 705, a sealing platform 706 on one side of the abutment platform 705, a threaded post 707 on the side of the sealing platform 706 away from the abutment platform 705, and a sealing platform 708 on the side of the abutment platform 705 away from the sealing platform 706. A transponder recess 709 is provided at the end of the sealing platform 708 away from the abutment platform 705. The piezoelectric ceramic sheet 702 is bonded to the transponder recess 709 with insulating adhesive to prevent electrical contact with the transponder base 701. The injection head 703 is sealed and wrapped around the outer side of the sealing platform 708 and the piezoelectric ceramic sheet 702 by injection molding to ensure waterproof performance. In this embodiment, a limiting groove 72 is provided around the outer wall of the sealing platform 708, and the injection head 703 fills the limiting groove 72 during the injection molding process. After the injection head 703 solidifies, the portion of the injection head 703 located in the limiting groove 72 hooks onto the sealing platform 708, ensuring a stable connection. The injection head 703 is also made of polyurethane material, and the response signal is transmitted to the piezoelectric ceramic sheet 702 through the injection head 703. The transponder base 701 has a threaded post 707 whose end extends from the outside into the transponder mounting hole 105. The abutment platform 705 abuts against the abutment end 113. The threaded post 707 extends into the equipment compartment 2. A locking nut 704 is screwed onto the outside of the threaded post 707, and the locking nut 704 presses against the end of the small-diameter end 111 away from the large-diameter end 112, thus achieving a fixed connection between the acoustic transponder head 7 and the transponder mounting hole 105. A sealing platform 706 is located inside the small-diameter end 111, and an O-ring 710 is held between the sealing platform 706 and the small-diameter end 111, achieving a seal in the transponder mounting hole 105. A sealing groove 71 is formed around the outer wall of the sealing platform 706, and the O-ring 710 is installed in the sealing groove 71. To ensure sealing performance, two or more sets of O-rings 710 can be provided. The piezoelectric ceramic sheet 702 is connected to the control circuit assembly 4 and is powered by the battery pack 3.

[0044] In this embodiment, to facilitate the wiring of the positive and negative electrodes of the piezoelectric ceramic sheet 702 to the control circuit assembly 4, a second wiring hole 73 communicating with the equipment compartment 2 is provided inside the transponder base 701, along with a second wiring channel 74 and a wiring notch 75. The second wiring channel 74 connects the second wiring hole 73 and the outer side of the sealing platform 4 708. The wiring notch 75 is located on the outer wall of the sealing platform 4 708, penetrating the top of the piezoelectric ceramic sheet 702 and the second wiring channel 74. The bottom electrode wiring of the piezoelectric ceramic sheet 702 extends directly into the equipment compartment 2 through the second wiring hole 73 and connects to the control circuit assembly 4. The top electrode wiring of the piezoelectric ceramic sheet 702 passes through the wiring notch 75 and the second wiring channel 74, enters the second wiring hole 73, and then extends into the equipment compartment 2 and connects to the control circuit assembly 4.

[0045] based on Figure 7 and Figure 8 As shown, it also includes two sets of protective covers 9. Each set of protective covers 9 includes a mounting ring 91 and a perforated cover 92 fixedly connected to the mounting ring 91. One set of protective covers 9 has its perforated cover 92 covering the outside of the detection end of the pressure-resistant hydrophone head 6, and the mounting ring 91 of this set of protective covers 9 is connected to the end circumferential bolt of the hydrophone mounting hole 104. The other set of protective covers 9 has its perforated cover 92 covering the outside of the response end of the acoustic transponder head 7, and the mounting ring 91 of this other set of protective covers 9 is connected to the end circumferential bolt of the transponder mounting hole 105. The protective covers 9 are made of stainless steel and protect the pressure-resistant hydrophone head 6 and the acoustic transponder head 7. The perforated cover 92 allows water to pass through without affecting signal reception and transmission.

[0046] Furthermore, based on Figure 1 , Figure 3 , Figure 9 and Figure 10As shown, the plug mounting hole 106 has a small-diameter end 114 communicating with the equipment compartment 2 and a large-diameter end 115 communicating with the outside of the pressure-resistant cover 12. An abutment end 116 is located at the junction of the small-diameter end 114 and the large-diameter end 115. Similarly, to ensure the strength and extension length at the plug mounting hole 106, a boss 13 is provided on the inner wall of the pressure-resistant cover 12, and the plug mounting hole 106 is located on the boss 13. The pressure-resistant multi-core plug 8 includes a plug base 802, a locking nut 803, and pins 804 arranged inside the plug base 802. The plug base 802 has an abutment platform 805, a sealing platform 806 on one side of the abutment platform 805, a threaded post 807 on the side of the sealing platform 806 away from the abutment platform 805, and a threaded post 808 on the side of the abutment platform 805 away from the sealing platform 806. The plug base 802 has a threaded post 807 that extends from the outside into the plug mounting hole 106. The abutment platform 805 abuts against the abutment end 116. The threaded post 807 extends into the equipment compartment 2. A locking nut 803 is screwed onto the outside of the threaded post 807. The locking nut 803 presses against the end of the small-diameter end 114 away from the large-diameter end 115, thus achieving a fixed connection between the pressure-resistant multi-core plug 8 and the plug mounting hole 106. A sealing platform 806 is located inside the small-diameter end 114, and an O-ring 809 is held between the sealing platform 806 and the small-diameter end 114, sealing the plug mounting hole 106. A sealing groove 81 is formed around the outer wall of the sealing platform 806, and the O-ring 809 is installed in the sealing groove 81. The pin 804 is connected to the control circuit assembly 4 and is powered by the battery pack 3.

[0047] In this embodiment, there are three plug mounting holes 106 and three sets of pressure-resistant multi-core plugs 8, which are respectively installed in the three plug mounting holes 106. The first pressure-resistant multi-core plug 8 is used to charge the battery pack 3, the second pressure-resistant multi-core plug 8 is used to download data stored in the control circuit assembly 4, and the third pressure-resistant multi-core plug 8 is used to program and debug the control circuit assembly 4 through an external program.

[0048] Furthermore, based on Figure 11 and Figure 12As shown, the battery pack 3 also includes several pressure plates 119 and several clamping screws 118, and has several battery packs 31. Several battery packs 31 indicate at least two sets of battery packs 31. The pressure-resistant housing 11 has several battery recesses 117, and the battery packs 31 are embedded in the corresponding battery recesses 117. In this embodiment, there are eight sets of battery packs 31, each embedded in one of eight battery recesses 117. The bottom of the pressure-resistant housing 11 has several screw holes 120 located between two adjacent battery recesses 117. Pressure plates 119 are placed on top of adjacent battery packs 31. Clamping screws 118 pass through the pressure plates 119 from the top and are screwed into the screw holes 120. The screw heads of the clamping screws 118 press against the top of the pressure plates 119, thus pressing the pressure plates 119 against the top of the corresponding battery packs 31, thereby fixing the battery packs 31. The number of pressure plates 119 and clamping screws 118 is determined according to the number and arrangement of the battery packs 31. In this embodiment, the eight battery packs 31 are arranged in two rows. The first row of six battery packs 31 is arranged in an arc shape and fixed by five sets of pressure plates 119 and clamping screws 118. The second row of two battery packs 31 is arranged horizontally and fixed by a set of pressure plates 119 and clamping screws 118. The battery packs 31 installed in this way are easy to install and remove.

[0049] Furthermore, based on Figure 2 and Figure 13 As shown, the detector assembly 5 includes a detector housing 501, which contains a first mounting cavity 502, a second mounting cavity 503, and a third mounting cavity 504. An X-axis detector assembly, a Y-axis detector assembly, and a Z-axis detector assembly are respectively installed in the first mounting cavity 502, the second mounting cavity 503, and the third mounting cavity 504 to achieve three-dimensional vibration detection. Each end of the first mounting cavity 502 is provided with a bearing seat 505, which extends horizontally along the Y-axis. The X-axis detector assembly includes an eccentric horizontal hull 506 and a cylindrical detector body 507 fixedly mounted on the eccentric horizontal hull 506. The cylindrical detector body 507 extends horizontally along the X-axis. Both ends of the eccentric horizontal hull 506 are rotatably mounted on the bearing seats 505 via bearings. With the above setup, even if the entire deep-sea seabed sensing and acquisition device is tilted in the water, the eccentric horizontal hull 506 can rotate to the bottom along the bearing and bearing seat 505 under the action of gravity, so that the cylindrical detector body 507 returns to the upright position. Since the cylindrical detector body 507 is cylindrical and has the characteristic of rotational symmetry along its axis, no matter which direction the deep-sea seabed sensing and acquisition device is tilted, only one degree of rotational freedom is needed to rotate it to a horizontal state.

[0050] Similarly, bearing seats 508 are provided at both ends of the mounting cavity 2 503. The two bearing seats 2 508 extend horizontally along the X-axis. The Y-axis detector assembly includes an eccentric horizontal hull 2 ​​509 and a cylindrical detector body 2 510 fixedly mounted on the eccentric horizontal hull 2 ​​509. The cylindrical detector body 2 510 extends horizontally along the Y-axis. Both ends of the eccentric horizontal hull 2 ​​509 are rotatably mounted on the bearing seats 2 508 via bearings. Similarly, when the entire deep-sea seabed sensing and acquisition device is tilted in the water, the eccentric horizontal hull 2 ​​509 can also rotate to the bottom along the bearings and bearing seats 2 508 under the action of gravity, so that the cylindrical detector body 2 510 returns to a horizontal state, and only one rotational degree of freedom is required to achieve the return to a horizontal state.

[0051] Both ends of the mounting cavity 3 504 are provided with bearing seats 3 511, and the two bearing seats 3 511 extend horizontally along the X-axis or Y-axis. In this embodiment, the two bearing seats 3 511 are arranged horizontally along the X-axis, but they can also be arranged along the Y-axis. The Z-axis detector assembly includes an eccentric horizontal hull 3 512, an eccentric horizontal hull 4 513, and a cylindrical detector body 3 514 fixedly mounted on the eccentric horizontal hull 4 513. The cylindrical detector body 3 514 extends numerically along the Z-axis. Both ends of the eccentric horizontal hull 3 512 are provided with bearing seats 4 515, and the two bearing seats 4 515 are arranged horizontally along a direction perpendicular to the arrangement of the two bearing seats 3 511. Both ends of the eccentric horizontal hull 3 512 are rotatably mounted on the bearing seats 3 511 via bearings. Both ends of the eccentric horizontal hull 4 513 are rotatably mounted on the bearing seats 4 515 via bearings. When the deep-sea sensing and acquisition device tilts, the eccentric horizontal hull 3 512 rotates along bearing seat 3 511 to the bottom, achieving centering in one direction. The eccentric horizontal hull 4 513 rotates along bearing seat 4 515 to the bottom, achieving centering in the other direction. Since the cylindrical detector body 3 514 is in a vertical state, when it tilts at different angles, it requires rotation in two directions to ensure centering back to the numerical state. Therefore, bearing seats 3 511 and 4 515, with their axes perpendicular to each other, are required for mounting. The cylindrical detector body 1 507, cylindrical detector body 2 510, and cylindrical detector body 3 514 are all connected to the control circuit assembly 4 and powered by the battery pack 3. Mounting cavities 1 502, 2 503, and 3 504 are filled with silicone oil, specifically high-viscosity silicone oil. When the bearing rotates, it generates noise, which affects the sensing of vibration signals by the cylindrical detector bodies 507, 510, and 514. High-viscosity silicone oil can prevent vibration from being transmitted to these bodies. Furthermore, the high-viscosity silicone oil only needs to fill 70% of the space in mounting cavities 502, 503, and 504 to avoid leakage due to thermal expansion if fully filled.

[0052] In this embodiment, mounting cavities 502, 503, and 504 are all open at one end to facilitate the installation of internal components. After installation, the open ends are sealed by the sealing head 51 to complete the installation. (The last sentence appears to be incomplete and possibly refers to a different embodiment.)

[0053] Furthermore, based on Figure 2 , Figure 11 and Figure 12As shown, several support columns 121 are distributed on the top of the pressure tank seat 11, and the top of the support columns 121 abuts against the inner side wall of the top of the pressure tank cover 12. The support columns 121 can form a support within the equipment compartment 2, preventing the pressure tank seat 11 and the pressure tank cover 12 from deforming due to water pressure.

[0054] In this embodiment, the bottom of the pressure chamber 11 is provided with a T-shaped protrusion 15, and the detector box 501 is fixed to the top of the T-shaped protrusion 15 by bolts. The bottom of the pressure chamber 11 is provided with five mounting slots 16, each with a threaded hole on its bottom wall. Each support column 121 has a threaded post screwed into its bottom. After the support column 121 is inserted into the corresponding mounting slot 16, it is fixed to the pressure chamber 11 by the threaded post screwed into the threaded hole. The circuit board with the control circuit assembly 4 is fixed to the top of the detector box 501 by bolts.

[0055] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A deep water seabed aware acquisition device, characterized by: It includes a pressure-resistant chamber base and a pressure-resistant chamber cover that is sealed and fastened to the top of the pressure-resistant chamber base. The pressure-resistant chamber base and the pressure-resistant chamber cover form an equipment compartment, and a battery pack, a control circuit assembly, and a detector assembly are installed inside the equipment compartment. The side wall of the pressure-resistant chamber cover has a hydrophone mounting hole, a transponder mounting hole, and a plug mounting hole that connect to the equipment compartment. A pressure-resistant hydrophone head is sealed and installed in the hydrophone mounting hole, and the detection end of the pressure-resistant hydrophone head extends out of the pressure-resistant chamber cover from the hydrophone mounting hole. An acoustic transponder head is sealed and installed in the transponder mounting hole, and the response end of the acoustic transponder head extends out of the pressure-resistant chamber cover from the transponder mounting hole. A pressure-resistant multi-core plug is sealed and installed in the plug mounting hole. The detector assembly, the pressure-resistant hydrophone head, the acoustic transponder head, and the pressure-resistant multi-pin connector are all connected to the control circuit assembly and powered by the battery pack.

2. The deepwater seabed-aware acquisition device of claim 1, wherein: The pressure tank base is surrounded by circumferentially distributed pressure tank bolt holes, and the pressure tank cover is surrounded by bottom edge distributed with bolt holes aligned with the pressure tank bolt holes. The pressure tank base and the pressure tank cover are fixedly connected to each other by bolts passing through the pressure tank bolt holes and the pressure tank cover bolt holes from the bottom. A connector is provided around the top of the pressure tank base, and the outer side wall of the connector abuts against the inner side wall of the pressure tank cover. An O-ring is held between the outer side wall of the connector and the inner side wall of the pressure tank cover.

3. The deepwater seabed-aware acquisition device of claim 1, wherein: The hydrophone mounting hole has a small-diameter end that connects to the equipment compartment and a large-diameter end that connects to the outside of the pressure-resistant chamber cover. The junction of the small-diameter end and the large-diameter end has an abutment end. The pressure-resistant hydrophone head includes a hydrophone base, a piezoelectric ceramic tube, an end cap, an injection head, and a locking nut. The hydrophone base has an abutment platform, a sealing platform on one side of the abutment platform, a threaded post on the side of the sealing platform away from the abutment platform, and a second sealing platform on the side of the abutment platform away from the sealing platform. A sleeve post is located at the end of the second sealing platform away from the abutment platform. The piezoelectric ceramic tube is spaced out and sleeved on the outside of the sleeve post. The end cap is threadedly connected to the end of the sleeve post away from the abutment platform. Both ends of the piezoelectric ceramic tube are clamped between the end cap and the second sealing platform. The injection head is sealed and encapsulated by injection molding. The outer sides of the end cap one, the piezoelectric ceramic tube, and the sealing platform two; the hydrophone base has the end of the threaded post one inserted into the hydrophone mounting hole from the outside, the abutment platform one abuts against the abutment end one, the threaded post one extends into the equipment compartment, the locking nut one is screwed onto the outside of the threaded post one, the locking nut one is pressed against the end of the small diameter end one away from the large diameter end one; an O-ring two is held between the abutment platform one and the abutment end one, the sealing platform one is located inside the small diameter end one, and an O-ring three is held between the sealing platform one and the small diameter end one; the piezoelectric ceramic tube is connected to the control circuit assembly and is powered by the battery pack.

4. The deepwater seabed-aware acquisition device of claim 3, wherein: The hydrophone base is made of metal, the end cap is made of insulating material, and the pressure-resistant hydrophone head also includes an insulating ring. The insulating ring is sleeved on the outside of the sleeve post and clamped between the piezoelectric ceramic tube and the sealing platform.

5. The deepwater seabed-aware acquisition device of claim 3, wherein: The transponder mounting hole has a small-diameter end two communicating with the equipment compartment and a large-diameter end two communicating with the outside of the pressure-resistant chamber cover, and the junction of the small-diameter end two and the large-diameter end two has an abutment end two. The acoustic transponder head includes a transponder base, a piezoelectric ceramic sheet, an injection-molded head, and a locking nut. The hydrophone base has a second abutment platform, a third sealing platform on one side of the second abutment platform, a threaded post on the side of the third sealing platform away from the second abutment platform, a fourth sealing platform on the side of the second abutment platform away from the third sealing platform, and a transponder recess at the end of the fourth sealing platform away from the second abutment platform. The piezoelectric ceramic sheet is bonded to the transponder recess with insulating adhesive. The second injection-molded head is sealed and wrapped around the fourth sealing platform and the piezoelectric ceramic sheet by injection molding. On the outside of the ceramic plate, the transponder base has the end of the threaded post two inserted into the transponder mounting hole from the outside. The abutment platform two abuts against the abutment end two. The threaded post two extends into the equipment compartment. The locking nut two is screwed onto the outside of the threaded post two. The locking nut two is pressed against the end of the small diameter end two away from the large diameter end two. The sealing platform three is located inside the small diameter end two, and an O-ring four is clamped between the sealing platform three and the small diameter end two. The piezoelectric ceramic plate is connected to the control circuit assembly and is powered by the battery pack.

6. The deepwater seabed-aware acquisition device of claim 1 or 4 or 5, wherein: It also includes two sets of protective covers. Each set of protective covers includes a mounting ring and a hollow cover body fixedly connected to the mounting ring. The hollow cover body of one set of protective covers covers the outside of the detection end of the pressure-resistant hydrophone head, and the mounting ring of this set of protective covers is connected to the end circumferential bolt of the hydrophone mounting hole. The hollow cover body of the other set of protective covers covers the outside of the response end of the acoustic transponder head, and the mounting ring of this other set of protective covers is connected to the end circumferential bolt of the transponder mounting hole.

7. The deepwater seabed-aware acquisition device of claim 1, wherein: The plug mounting hole has a small-diameter end three communicating with the equipment compartment and a large-diameter end three communicating with the outside of the pressure-resistant chamber cover, and the junction of the small-diameter end three and the large-diameter end three has an abutting end three; The pressure-resistant multi-core plug includes a plug base, a locking nut three, and a pin arranged inside the plug base. The plug base has an abutment platform three, a sealing platform five on one side of the abutment platform three, a threaded post three on the side of the sealing platform five away from the abutment platform three, and a threaded post four on the side of the abutment platform three away from the sealing platform five. The end of the plug base with the threaded post three passes through the plug mounting hole from the outside. The abutment platform three abuts against the abutment platform three. The threaded post three extends into the equipment compartment. The locking nut three is screwed onto the outside of the threaded post three. The locking nut three is pressed against the end of the small diameter end three away from the large diameter end three. The sealing platform five is located inside the small diameter end three, and an O-ring five is clamped between the sealing platform five and the small diameter end three. The pin is connected to the control circuit assembly and is powered by the battery pack. The plug mounting holes are three in number, and the pressure-resistant multi-core plug is in three sets. The three sets of pressure-resistant multi-core plugs are respectively installed in the three plug mounting holes. The first pressure-resistant multi-core plug is used to charge the battery pack, the second pressure-resistant multi-core plug is used to download data stored in the control circuit assembly, and the third pressure-resistant multi-core plug is used to program and debug the control circuit assembly through an external program.

8. The deepwater seabed-aware acquisition device of claim 1, wherein: It also includes several pressure plates and several clamping screws. The battery pack has several battery packs. The pressure-resistant chamber has several battery recesses. The battery packs are embedded in the corresponding battery recesses. The bottom of the pressure-resistant chamber has several screw holes located between two adjacent battery recesses. The pressure plate is placed on top of the adjacent battery packs. The clamping screw passes through the pressure plate from the top and is screwed into the screw hole. The screw head of the clamping screw presses against the top of the pressure plate, and the pressure plate is pressed against the top of the corresponding battery pack.

9. The deepwater seabed-aware acquisition device of claim 1, wherein: The detector assembly includes a detector housing, which has a mounting cavity one, a mounting cavity two, and a mounting cavity three. An X-direction detector assembly, a Y-direction detector assembly, and a Z-direction detector assembly are respectively installed in the mounting cavity one, the mounting cavity two, and the mounting cavity three. Both ends of the mounting cavity are provided with bearing seats, and the two bearing seats extend horizontally along the Y-axis. The X-axis detector assembly includes an eccentric horizontal hull and a cylindrical detector body fixedly mounted on the eccentric horizontal hull. The cylindrical detector body extends horizontally along the X-axis, and both ends of the eccentric horizontal hull are rotatably mounted on the bearing seats via bearings. Both ends of the mounting cavity 2 are provided with bearing seats 2, and the two bearing seats 2 are arranged to extend horizontally along the X-axis. The Y-axis detector assembly includes an eccentric horizontal hull 2 ​​and a cylindrical detector body 2 fixedly installed on the eccentric horizontal hull 2. The cylindrical detector body 2 extends horizontally along the Y-axis. Both ends of the eccentric horizontal hull 2 ​​are rotatably mounted on the bearing seats 2 via bearings. Both ends of the mounting cavity three are provided with bearing seats three, and the two bearing seats three extend and are arranged along the horizontal direction of the X-axis or the horizontal direction of the Y-axis. The Z-axis detector assembly includes an eccentric horizontal hull three, an eccentric horizontal hull four, and a cylindrical detector body three fixedly installed on the eccentric horizontal hull four. The cylindrical detector body three extends numerically along the Z-axis direction. Both ends of the eccentric horizontal hull three are provided with bearing seats four, and the two bearing seats four are arranged horizontally along the direction perpendicular to the arrangement of the two bearing seats three. Both ends of the eccentric horizontal hull three are rotatably mounted on the bearing seats three via bearings; both ends of the eccentric horizontal hull four are rotatably mounted on the bearing seats four via bearings. The cylindrical detector body 1, the cylindrical detector body 2, and the cylindrical detector body 3 are all connected to the control circuit assembly and powered by the battery pack. The mounting cavity 1, the mounting cavity 2, and the mounting cavity 3 are filled with silicone oil.

10. The deepwater seabed-aware acquisition device of claim 1, wherein: The top of the pressure chamber is provided with several support columns, and the top of the support columns abuts against the inner side wall of the top of the pressure chamber cover.

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