Long-term observation device for organisms at bottom of deep sea

Abstract

The invention belongs to the technical field of marine scientific research and environmental protection, and relates to a long-term observation device for organisms at the bottom of deep sea, which comprises a mounting frame, an observation cylinder, a suction pump, a control cabin, an energy storage assembly, a camera assembly and a light-emitting assembly. A hoisting connection position is arranged on the mounting frame and is matched with a submersible manipulator; the opening side of the observation cylinder is provided with an outlet of the suction pump, a camera shooting assembly and a light-emitting assembly; the energy storage assembly is provided with a control switch and is matched with the submersible manipulator. The underwater starting and stopping device is simple in structure and low in cost, accurate underwater putting and recycling of the submersible can be achieved through the matched lifting connecting position, at least part of functions of the underwater starting and stopping device of the manipulator of the submersible are achieved in combination with the control switch, an operator can autonomously select the switch according to task requirements, and laying of the underwater starting and stopping device of the manipulator of the submersible is more flexible; in-situ continuous and clear benthic organism stress reaction recording is realized, and effective support is provided for deep-sea mining environment influence assessment.

Description

Technical Field

[0001] The invention belongs to the technical field of marine scientific research and environmental protection, and specifically relates to a long-term observation device for deep-sea bottom organisms. Background Art

[0002] The development of deep-sea mineral resources is a large and extremely complex systematic project, involving detailed resource exploration, on-site collection, mineral pretreatment and other processes of environmental protection and restoration. The development process is subject to strict environmental protection requirements and complex marine environment constraints.

[0003] Among them, during the exploration and development of deep-sea mineral resources, due to the influence of the movement of mining vehicles or the suction of the management system, the plumes formed carry a large amount of sediments, which may bring catastrophic disturbances to the deep-sea environment, directly destroy the habitats of benthic animals on the seabed, and it will be difficult to reach a new balance for a long time.

[0004] Therefore, conducting surveys and research on deep-sea mining area ecosystems, mastering seabed environmental baseline survey data, and understanding the functions, resilience, connectivity of benthic organisms, and the laws of biological community reconstruction of deep-sea ecosystems are important guarantee foundations for ensuring that future deep-sea mining is green, safe, reliable, intelligent, and efficient.

[0005] At present, the main technical means for long-term observation of deep-sea bottom organisms are as follows: 1. After trapping seafloor organisms, carry them to a land laboratory under pressure to observe the impact of simulated plume sediments. Although it is easy to implement, it is difficult to ensure the accuracy of the experiment because the organisms are separated from their original environment, and it is impossible to obtain better observation data and conclusions. 2. Establish a large-scale in-situ experiment and observation system on the seabed. Although existing technologies can realize automated experiments and provide information feedback through cables or underwater acoustic communications, they are not suitable for long-term observation and research due to their extremely high construction and maintenance costs. In addition, once an accident occurs, the loss cost is also extremely high, and it is difficult to launch and recover. 3. Use a miniature observation system based on a lander. This technical means traps seabed organisms while conducting video observation to understand the habits of benthic organisms. This type of design is currently quite feasible, has a low overall cost and is easy to set up for a long time. However, since the lander is deployed by a survey ship, the observation system cannot be accurately placed on the seabed, and the time of video observation cannot be accurately controlled. The recovery process is exposed to the impact of loss and impact caused by severe sea conditions, which affects the scientific reliability of the survey results.

[0006] In summary, existing seabed biological survey technologies are unable to accurately assess the sediment plume disturbance caused by deep-sea mining, and are unable to observe in real time on-site the clear and continuous stress response of benthic organisms to external stimuli caused by deep-sea mining, which in turn limits scientists' understanding of the environmental impact assessment of deep-sea mining. Summary of the invention

[0007] In view of the problems existing in the prior art, the present invention provides a long-term observation device for deep-sea bottom organisms which has a simple structure, low cost, and can be conveniently and accurately deployed and recovered with a submersible.

[0008] To achieve the above purpose, the technical solution adopted by the present invention is as follows: The present invention provides a long-term observation device for deep-sea bottom organisms, which mainly comprises a mounting frame, an observation tube, a suction pump, a control cabin, an energy storage component, a camera component and a light-emitting component; the observation tube, the suction pump, the control cabin, the energy storage component, the camera component and the light-emitting component are all mounted on the mounting frame; A hanging connection position is provided on the top or side of the installation frame, and the hanging connection position is adapted to the submersible manipulator; The observation tube is a transparent cylinder with an open top, and the outlet of the suction pump is arranged on the open side; the camera assembly and the light emitting assembly are also arranged on the open side of the observation tube; The energy storage assembly is provided with a control switch, and the control switch is adapted to the submersible manipulator; The control cabin is provided with a carrier board, a processor, a storage medium, and an integrated control system; the control cabin is respectively connected to the suction pump, the energy storage component, the camera component, and the light emitting component.

[0009] Furthermore, the control switch is a mechanical rotary switch, including a handle, a rotating shaft, and an electrode switch; The handle is connected to the electrode switch via the rotating shaft; the electrode switch is connected to the energy storage unit of the energy storage assembly and is used to control the on and off of at least part of the power supply circuit.

[0010] Furthermore, the control switch further comprises a mounting flange, and the mounting flange is fixedly connected to the mounting frame; The rotating shaft comprises a first rotating shaft and a second rotating shaft; the first rotating shaft is coaxially connected to the second rotating shaft, and the first rotating shaft is rotatably connected to the mounting flange; The handle is a vertical annular structure, and the lower part is fixedly connected to the first rotating shaft through a fixing member; the second rotating shaft is connected to the electrode switch.

[0011] Furthermore, a connecting sleeve is also provided on the mounting flange; Two coaxially opposed water-lubricated bearings are arranged in the connecting sleeve; The first rotating shaft is provided with a positioning shoulder, and the positioning shoulder is clamped between the two water-lubricated bearings; The connecting shaft sleeve is also provided with a water permeable hole.

[0012] Furthermore, a marking area is provided on the first rotating shaft, and at least one marking area is aligned with the water permeable hole after the handle is rotated to the working position.

[0013] Furthermore, the control switch further comprises a low-frequency sound generator; The low-frequency sound generator comprises a first sound-generating part, a second sound-generating part and a gear plate; The first sounding part and the second sounding part are respectively located at the extreme positions of the rotation of the handle and are fixedly connected to the mounting frame; the first and second sounding parts are both fan ring segments of the crown gear, and the tooth shapes of the first and second sounding parts are different; The gear shifting plate is also a sector ring segment of the crown gear and is connected to the handle through an elastic member; The tooth height directions of the first and second sound-generating parts are opposite to the tooth height direction of the gear shifting plate; The tooth root distance between the first sound-generating part and the gear shifting plate is smaller than the sum of the tooth heights of the first sound-generating part and the gear shifting plate; The tooth root distance between the second sound-emitting part and the gear shifting plate is smaller than the sum of the tooth heights of the second sound-emitting part and the gear shifting plate.

[0014] Further, the observation device also includes an underwater compensator; The underwater compensator is an oil compensator, which is used for pressure compensation; The underwater compensator is connected to at least the energy storage assembly and the suction pump.

[0015] Furthermore, the lower part of the observation tube is also an open structure, and a screen is installed inside.

[0016] Furthermore, the inlet of the suction pump is connected with a flexible connecting pipe.

[0017] Furthermore, the hanging connection position is a vertical ring handle; The annular handle is fixedly mounted on the middle of the top surface of the mounting frame; The corners of the top surface of the installation frame are also provided with hanging rings.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The present invention has a simple structure and low cost. Through the adapted lifting connection position, precise underwater delivery and recovery by the submersible can be achieved. In combination with the control switch, at least part of the functions of the underwater start-stop device of the submersible manipulator can be realized. Different from the high cost problem of underwater acoustic communication or the non-adjustable problem of the timing switch, the operator can independently select the switch according to the task requirements, making its deployment more flexible. Furthermore, in combination with the energy storage, camera and light-emitting components, long-term in-situ observation of seabed organisms in the observation tube can be carried out. The sediment can be sucked by the suction pump to simulate the sediment plume disturbance caused by deep-sea mining, so as to realize the real-time, continuous and clear on-site stress response record of benthic organisms after external stimuli, thereby providing effective support for scientists to assess the environmental impact of deep-sea mining. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a front perspective view of the device in a specific embodiment of the present invention; Figure 2 It is a rear perspective view of the device in a specific embodiment of the present invention; Figure 3 It is a three-dimensional diagram of an observation tube in a specific embodiment of the present invention; Figure 4 It is a stereoscopic diagram of the installation position of the suction pump in a specific embodiment of the present invention; Figure 5 A cross-sectional view of a suction pump in a specific embodiment of the present invention; Figure 6 It is a three-dimensional diagram of an energy storage component in a specific embodiment of the present invention; Figure 7 It is a cross-sectional view of an energy storage component in a specific embodiment of the present invention; Figure 8 It is a stereoscopic diagram of a low-frequency sound generator in a specific embodiment of the present invention.

[0021] In the figure: 1, installation frame, 2, observation tube, 3, suction pump, 4, light emitting component, 5, camera component, 6, control cabin, 7, energy storage component, 8, underwater compensator, 101, lifting ring, 102, ring handle, 201, cylinder body, 202, observation tube connecting flange, 203, screen, 301, inlet, 302, outlet, 303, front cover, 304, pump housing, 305, rear cover, 306, suction pump waterproof plug, 307, first compensator interface, 308, impeller shaft, 309, pump head, 310, motor output shaft, 311, second O-ring, 312, first O-ring, 313, oil seal, 314, lip seal, 315, Sealing cover, 316, bearing, 317, retaining ring, 318, DC motor, 319, third O-ring, 701, square pressure-resistant casing, 702, handle, 703, pressure-resistant lithium battery, 704, first rotating shaft, 705, shaft sleeve end cover, 706, connecting shaft sleeve, 707, water permeable hole, 708, water-lubricated bearing, 709, second rotating shaft, 710, rotating shaft mounting seat, 711, fourth O-ring, 712, electrode switch, 713, power waterproof plug, 714, second compensator interface, 715, mounting flange, 716, first sound-emitting part, 717, second sound-emitting part, 718, gear plate, 719, composite rubber layer, 720, pin. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present invention, it is necessary to understand that the relative relationships indicated by the terms "upper", "lower", "top", "bottom", etc. are based on the corresponding upper and lower relationships of the device when it is in an installed position in an actual application. They are for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, and therefore cannot be understood as a limitation on the present invention.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] It should be noted that the methods used in the present invention are all conventional methods unless otherwise specified; the raw materials and devices used are all conventional commercially available products unless otherwise specified.

[0027] This embodiment provides a long-term observation device for deep-sea bottom organisms, such as Figure 1 and Figure 2 As shown, it mainly includes a mounting frame 1, an observation tube 2, a suction pump 3, a control cabin 6, an energy storage component 7, a camera component 5 and a light-emitting component 4.

[0028] Among them, the installation frame 1 is a square frame structure formed by welding and splicing multiple circular tubes, which is mainly used to carry various components and assemblies, and provide corresponding installation positions for them, and at the same time has certain protection functions. Since the observation device of this embodiment is deployed with the submersible, the overall size of the installation frame 1 is compatible with the sampling basket of the submersible, and there are no protruding parts on the surrounding side. The main parts of the observation tube 2, the suction pump 3, the control cabin 6, the energy storage component 7, the camera component 5, and the light-emitting component 4 are all installed on the installation frame and located on the inner side of the frame. Further, in order to facilitate the pick-up and placement of the submersible manipulator, a hanging connection position is set in the middle of the top crossbeam of the installation frame 1, and the hanging connection position is adapted to the submersible manipulator; this embodiment takes the common opening and closing manipulator as an example, and designs the hanging connection position as a vertical annular handle 102. A flange is also set on the inner circle of the annular handle to facilitate the manipulator to support it and avoid swinging and colliding due to the influence of the ocean current near the sea surface. A lifting ring 101 is also provided at the corner of the top surface of the installation frame 1, and its function is to be hoisted after leaving the water.

[0029] like Figure 3 As shown, the observation tube 2 is a transparent cylinder with an open top, and an observation tube connection flange 202 is provided at the bottom of the cylinder body 201, and is fixedly connected to the mounting frame 1 by bolts. In order to effectively simulate the influence of sediment disturbance and prevent the trapped seabed organisms from escaping from the bottom, the lower part of the observation tube 2 is also designed to be an open structure, and a screen 203 is provided at the middle of the inner side.

[0030] A camera assembly 5 and a light emitting assembly 4 are installed on one side above the upper opening of the observation tube 2, and the lens and the light source are adjusted to face the opening area respectively, so that the situation inside the tube can be clearly observed. Optionally, the camera assembly 5 is designed with a pressure-resistant shell and a waterproof plug, and the base of the camera assembly 5 is fixedly connected to the side beam of the mounting frame 1, and the camera of the camera assembly 5 is selected to include a night vision camera, and the light emitting assembly 4 includes an invisible light emitting unit, so as to achieve the shooting of seabed organisms under infrared light or weak light conditions, avoiding the light stress reaction of some photosensitive organisms. Similarly, the base of the light emitting assembly 4 is also fixedly connected to the side beam of the mounting frame 1.

[0031] A suction pump 3 is also installed above the upper opening of the observation tube 2. Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the suction pump 3 is fixedly connected to the top crossbeam of the mounting frame 1 through a metal clamp. An inlet 301 and an outlet 302 are provided at the front end of the suction pump 3, and the outlet 302 faces the inside of the observation tube 2. The pump body is a three-section pressure-resistant shell design, including a front cover 303, a pump shell 304 and a rear cover 305. Among them, a pump head 309 is installed on the front cover 303, and a hole is opened in the middle of the front cover 303 to penetrate the impeller shaft 308. A bearing 316 is fixed at the shaft hole of the front cover 303 through a retaining ring 317, and a first O-ring 312, an oil seal 313, a lip seal 314, and a sealing cover 315 are installed in sequence behind the bearing. The pump shell 304 is a cylindrical structure that passes through the front and back, and a DC motor 318 is installed inside. The motor is fixedly connected to the flange in the pump shell 304 by bolts, and the motor output shaft 310 is coaxially fixed to the impeller shaft 308. A second O-ring 311 is installed between the front cover 303 and the pump housing 304. A suction pump waterproof plug 306 and a first compensator interface 307 are respectively provided on the rear cover 305. A third O-ring 319 is installed between the rear cover 305 and the pump housing 304 to ensure the overall sealing performance.

[0032] Furthermore, in order to quickly extract the sediment and blow it into the observation tube 2, an extended flexible connecting tube (not shown in the figure) is designed to be installed at the inlet 301. After the device is deployed, personnel can operate the submersible manipulator to clamp the end of the flexible connecting tube and move it to the vicinity of the sediment layer, thereby sucking up the sediment and pumping it into the observation tube 2.

[0033] The control cabin 6 is equipped with a data acquisition card, an electronic integrated circuit board, a processor and a storage medium, and the control system of the entire device is integrated in the hardware system. The control cabin 6 is connected to the suction pump 3, the energy storage component 7, the camera component 5, and the light-emitting component 4 through a multi-way waterproof plug and a cable, and is used to control the operation switch of each component / unit, detect the operation status, and collect and record the camera information. The outer shell of the control cabin 6 is also a pressure-resistant cylindrical shell, and is fixed to the bottom of the mounting frame 1 by two metal clamps.

[0034] The observation device of this embodiment further includes an underwater compensator 8, which is an oil compensator for pressure compensation. The underwater compensator 8 is connected to the energy storage assembly 7 and the first compensator interface 307 of the suction pump 3 through a pressure-resistant hose.

[0035] Combination Figure 6 and Figure 7 As shown, the energy storage component 7 of this embodiment has a square pressure-resistant shell 701 on the outside, which is specifically composed of a bimetallic plate and a middle frame. A pressure-resistant lithium battery 703 is installed in the square pressure-resistant shell 701. The energy storage component 7 is provided with a control switch, and the control switch is adapted to the submersible manipulator. Further, the control switch of this embodiment is a mechanical rotary switch, which includes a handle 702, a rotating shaft, and an electrode switch 712.

[0036] In order to adapt to the submersible manipulator of this embodiment, the handle 702 is actually a vertical annular structure, and a flange is provided on the upper part to facilitate the clamping of the manipulator, and the handle 702 can be driven to rotate by the rotation of the joint of the mechanical wrist. The handle 702 is connected to the electrode switch 712 through the rotating shaft, and the electrode switch 712 is connected to the pressure-resistant lithium battery 703 to control the on and off of at least part of the power supply circuit. Although a timer can be used to trigger the circuit in time in the prior art, the timer has too many limitations, which often leads to too urgent task execution. After completing a set of device delivery, it is necessary to rush to the next scheduled location as soon as possible, otherwise once the timeout occurs, the device will start automatically during the delivery, and after completing the task, in order not to delay time, it is also impossible to wait for the device to start in place, so that its working condition can only be checked when the device is recovered, which is not conducive to the handling of emergencies; and another common practice is to add an underwater acoustic communicator and use remote control to control the start and stop of the device, but the underwater acoustic communicator will increase the overall cost, and the fidelity of underwater acoustic communication is insufficient, which is particularly prone to unexpected situations. The present embodiment starts and stops the device by rotating the handle alone, and no longer requires a timer trigger or an additional underwater acoustic communication trigger. This not only fully utilizes the manipulator required for submersible deployment, but also avoids the above problems, increasing the flexibility and certainty of the task.

[0037] Optionally, the control switch of this embodiment further includes a mounting flange 715, and the mounting flange 715 is fixedly connected to the crossbeam of the mounting frame 1 by bolts. A connecting sleeve 706 is fixed on the mounting flange 715 for connecting the rotating shaft.

[0038] In consideration of the sealing requirements and the connection strength requirements, the present embodiment is also designed to include a first rotating shaft 704 and a second rotating shaft 709, and the first rotating shaft 704 and the second rotating shaft 709 are coaxially connected, and the first rotating shaft 704 is rotatably connected to the connecting sleeve 706. The upper end of the first rotating shaft 704 is fixedly connected to the handle 702 by a positioning screw, and a positioning shoulder is provided in the middle of the first rotating shaft 704. The connecting sleeve 706 is internally encapsulated with two upper and lower opposite water-lubricated bearings 708 through the sleeve end cover 705, and the positioning shoulder is clamped between the two water-lubricated bearings 708, thereby completing the axial positioning of the first rotating shaft 704 and maintaining its rotation ability. A plurality of water-permeable holes 707 are provided on the connecting sleeve 706, which are long waist-shaped through holes. On the one hand, water can pass through to provide lubricating fluid for the water-lubricated bearing 708; on the other hand, a marking area (such as a color mark) can be provided on the first rotating shaft 704, and at least one marking area is fully or partially aligned with the water-permeable hole 707 (the marking area is larger than the outline of the water-permeable hole) after the handle 702 is rotated to the working position. In this way, the operator in the submersible can visually observe whether the handle 702 is rotated to the extreme position (corresponding to the open and closed gears) through the underwater camera.

[0039] The second rotating shaft 709 is installed on the top of the square pressure-resistant housing 701 through the rotating shaft mounting seat 710, and the lower end of the rotating shaft is connected to the electrode switch 712. A fourth O-ring 711 is also installed between the second rotating shaft 709 and the rotating shaft mounting seat 710.

[0040] The square pressure-resistant housing 701 is also provided with a power waterproof plug 713 and a second compensator interface 714 , and the second compensator interface 714 is used to connect the underwater compensator 8 .

[0041] Optional, combined Figure 8 As shown, the control switch of this embodiment also includes a low-frequency sound generator, which is installed between the handle 702 and the connecting sleeve 706 and mainly includes a first sound-generating part 716 , a second sound-generating part 717 and a gear plate 718 .

[0042] Among them, the first sound-emitting part 716 and the second sound-emitting part 717 are both installed on the upper end surface of the connecting sleeve 706 and are arranged around the axis, and the two sound-emitting parts are respectively located at the extreme positions of the handle rotation (in this embodiment, the handle 702 rotates the switch 180° as an example, 0°-80° is off, and 100°-180° is on).

[0043] The first and second sounding parts are both the sector ring segments (30° arc area) of the crown gear, and the tooth profiles of the first and second sounding parts are different; the tooth profile of the first sounding part 716 is triangular, and the tooth profile of the second sounding part 717 is arc-shaped. As a result, the audio frequencies generated when the toothed disc 718 is rubbed to generate sound are different, making it easier for operators to distinguish.

[0044] The toothed disc 718 is also a fan ring segment (30° arc area) of the crown gear, and is connected to the handle 702 through an elastic member. Specifically, the toothed disc 718 is placed upside down, that is, the tooth height direction of the first and second sounding parts is opposite to the tooth height direction of the toothed disc 718. The back of the toothed disc 718 is affixed with a composite rubber layer 719, which can work in a deep-sea high-pressure environment and is commonly found at the joints of deep-sea transmission pipelines; four pins 720 are installed on the back of the toothed disc 716, and corresponding mounting holes are machined on the lower bottom surface of the handle 702, and the pins are inserted into the mounting holes. The spacing between the handle 702 and the connecting sleeve 706 is adjusted so that the tooth root spacing between the first sounding part 716 and the toothed disc 718 is less than the sum of the tooth heights of the first sounding part 716 and the toothed disc 718, and the tooth root spacing between the second sounding part 717 and the toothed disc 718 is less than the sum of the tooth heights of the second sounding part and the toothed disc.

[0045] The purpose of this design is that when the operator controls the manipulator to turn the handle 702, when it has entered the open or closed area and is close to the extreme position, the gear plate 718 will rub against the first or second sound-emitting part to produce sound, and due to the different tooth profile shapes, the sound is also different. The operator can judge the switch state by hearing the corresponding low-frequency sound through the submersible's hydroacoustic receiver, thereby avoiding the problem of over-rotation; combined with the aforementioned visual judgment mark of the water-permeable hole, the switch state can be effectively and accurately known; at the same time, a 30° friction sound-emitting area is set in the 80° switch area, which can avoid the problem of switch virtual connection, and also has a damping function to ensure that the switch will not be changed by external disturbances or collisions.

[0046] The working process of the long-term observation device for deep-sea bottom organisms is as follows: (1) Before diving, set the working time of the deep-sea sediment suction pump according to the planned operating depth; (2) Install the device on the sampling basket of a manned submersible; (3) The diver starts and controls the system through the host computer operating software in the cabin, and then starts the dive after confirming that everything is correct; (4) After arriving at the operation site and finding the organisms to be captured based on on-site observations on the seabed, the submersible uses the manipulator to place the device on the seabed. During installation, the observation tube must be placed above the benthic organisms to be observed. (5) The manipulator operates the control switch and rotates the wrist joint to turn on the power to provide power to the sediment suction pump, and the sediment suction pump starts working; (6) The manipulator operates the imported hose to align the sediment for suction to ensure that mud enters the suction pump; (7) Turn on the camera assembly and the light-emitting assembly (LED light) to simultaneously observe the coverage of the sediments in the transparent cylinder on the benthic organisms and the stress response of the benthic organisms; (8) After 30 minutes of operation, the control system automatically cuts off the power to the control switch; the camera component and the light-emitting component remain powered on; (9) The submersible leaves the site and the device remains on the seabed for observation for 24-48 hours; (10) After completing the 24-48 hours of photography and video recording, the submersible returns to the original deployment coordinate point during the next dive and recovers the device into the sampling basket, completing the operation.

[0047] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A long-term observation device for deep-sea bottom organisms, characterized in that: It includes a mounting frame, an observation tube, a suction pump, a control cabin, an energy storage component, a camera component and a light emitting component; the observation tube, the suction pump, the control cabin, the energy storage component, the camera component and the light emitting component are all mounted on the mounting frame; A hanging connection position is provided on the top or side of the installation frame, and the hanging connection position is adapted to the submersible manipulator; The observation tube is a transparent cylinder with an open top, and the outlet of the suction pump is arranged on the open side; the camera assembly and the light emitting assembly are also arranged on the open side of the observation tube; The energy storage assembly is provided with a control switch, and the control switch is adapted to the submersible manipulator; The control cabin is provided with a carrier board, a processor, a storage medium, and an integrated control system; the control cabin is respectively connected to the suction pump, the energy storage component, the camera component, and the light emitting component.

2. The deep-sea bottom organism long-term observation device according to claim 1 is characterized in that: The control switch is a mechanical rotary switch, including a handle, a rotating shaft, and an electrode switch; The handle is connected to the electrode switch via the rotating shaft; the electrode switch is connected to the energy storage unit of the energy storage assembly and is used to control the on and off of at least part of the power supply circuit.

3. The deep-sea bottom organism long-term observation device according to claim 2 is characterized in that: The control switch further comprises a mounting flange, and the mounting flange is fixedly connected to the mounting frame; The rotating shaft comprises a first rotating shaft and a second rotating shaft; the first rotating shaft is coaxially connected to the second rotating shaft, and the first rotating shaft is rotatably connected to the mounting flange; The handle is a vertical annular structure, and the lower part is fixedly connected to the first rotating shaft through a fixing member; the second rotating shaft is connected to the electrode switch.

4. The deep-sea bottom organism long-term observation device according to claim 3 is characterized by: The mounting flange is also provided with a connecting sleeve; Two coaxially opposed water-lubricated bearings are arranged in the connecting sleeve; The first rotating shaft is provided with a positioning shoulder, and the positioning shoulder is clamped between the two water-lubricated bearings; The connecting shaft sleeve is also provided with a water permeable hole.

5. The long-term observation device for deep-sea bottom organisms according to claim 4 is characterized in that: A marking area is provided on the first rotating shaft, and at least one marking area is aligned with the water permeable hole after the handle is rotated to the working position.

6. The control method of the deep-sea bottom organism long-term observation device according to any one of claims 2 to 5, characterized in that: The control switch also includes a low-frequency sound generator; The low-frequency sound generator comprises a first sound-generating part, a second sound-generating part and a gear plate; The first sounding part and the second sounding part are respectively located at the extreme positions of the rotation of the handle and are fixedly connected to the mounting frame; the first and second sounding parts are both fan ring segments of the crown gear, and the tooth shapes of the first and second sounding parts are different; The gear shifting plate is also a sector ring segment of the crown gear and is connected to the handle through an elastic member; The tooth height directions of the first and second sound-generating parts are opposite to the tooth height direction of the gear shifting plate; The tooth root distance between the first sound-generating part and the gear shifting plate is smaller than the sum of the tooth heights of the first sound-generating part and the gear shifting plate; The tooth root distance between the second sound-emitting part and the gear shifting plate is smaller than the sum of the tooth heights of the second sound-emitting part and the gear shifting plate.

7. The deep-sea bottom organism long-term observation device according to claim 1 is characterized by: The observation device also includes an underwater compensator; The underwater compensator is an oil compensator, which is used for pressure compensation; The underwater compensator is connected to at least the energy storage assembly and the suction pump.

8. The deep-sea bottom organism long-term observation device according to claim 1 is characterized by: The lower part of the observation tube is also an open structure, and a screen is installed inside.

9. The long-term observation device for deep-sea bottom organisms according to claim 1, characterized in that: The inlet of the suction pump is connected with a flexible connecting pipe.

10. The control method of the deep-sea bottom organism long-term observation device according to claim 1, characterized in that: The hanging connection position is a vertical ring handle; The annular handle is fixedly mounted on the middle of the top surface of the mounting frame; The corners of the top surface of the installation frame are also provided with hanging rings.

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