Submarine organism in-situ test device, test system and test method

Abstract

The invention discloses a benthic organism in-situ test device which comprises a mounting frame, and an organism trapping cage used for trapping benthic organisms and limiting the benthic organisms is mounted on the mounting frame. The installation frame is further provided with a seabed disturbance simulation device used for simulating seabed disturbance in situ and an observation device used for observing the survival condition of the benthic organisms in the organism trapping cage under the seabed disturbance simulated by the seabed disturbance simulation device. The invention also provides a benthos in-situ test system and a benthos in-situ test method. According to the benthic organism in-situ test device, the test system and the test method, the organism trapping cage is used for trapping organisms, then the benthic disturbance simulation device is used for simulating benthic disturbance, the captured organisms are subjected to in-situ test culture, the influence possibly generated by human activities is simulated, and the observation device is used for observing and recording; the influence of different human activities on the benthos can be evaluated by observing the activity conditions of the benthos under different disturbance influence factors.

Description

Technical Field

[0001] The present invention belongs to the technical field of subsea testing, and particularly relates to a test device, a test system and a test method for subsea organisms. Background Art

[0002] With the continuous improvement of deep-sea resource development and utilization technologies, people have paid increasing attention to the acquisition of marine resources. However, the means or equipment adopted in human resource development and investigation activities will inevitably have an impact on the subsea environment, thereby affecting the living habits of marine organisms and possibly leading to the death of subsea organisms. According to research findings, plumes, noise, light, and heavy metals have the greatest impact on subsea organisms, and currently, there is no effective device or method for accurately evaluating the impact of subsea-related activities on large subsea organisms.

[0003] Therefore, it is of great significance to provide a subsea organism in-situ monitoring device and method for monitoring the impact of human subsea activities on subsea organisms. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies and defects mentioned in the above background art, and provide a subsea organism in-situ test device, a test system and a test method for monitoring the impact of human subsea activities (including plumes, noise, light, and heavy metals) on subsea organisms.

[0005] To solve the above technical problem, the technical solution proposed by the present invention is as follows: A subsea organism in-situ test device includes an installation frame, on which a biological trapping cage for trapping subsea organisms and restricting the movement of subsea organisms is installed, and a subsea disturbance simulation device for in-situ simulating subsea disturbances and an observation device for observing the survival of subsea organisms in the biological trapping cage under the subsea disturbance scenarios simulated by the subsea disturbance simulation device are also provided on the installation frame.

[0006] The above installation frame can be welded by titanium alloy materials to provide support for the overall equipment and installation positions for other auxiliary devices. A cavity can be provided in the center of the biological trapping cage for sleeving on the central frame of the installation frame.

[0007] In the above in-situ test device for undersea organisms, preferably, it includes a plurality of mounting frames. A biological trapping cage and an observation device are provided on each mounting frame. The undersea disturbance simulation device includes a plume disturbance simulation component, a noise disturbance simulation component, a light pollution simulation component, and a heavy metal pollution simulation component. The plume disturbance simulation component is provided on at least one mounting frame, the noise disturbance simulation component is provided on at least one mounting frame, the light pollution simulation component is provided on at least one mounting frame, and the heavy metal pollution simulation component is provided on at least one mounting frame. In the present invention, for the plume disturbance simulation component, the noise disturbance simulation component, the light pollution simulation component, and the heavy metal pollution simulation component, independent mounting frames can be respectively set for each type. The other components of the mounting frames are the same, and only different simulation components are installed. Of course, multiple sets of simulation components can also be installed on the same mounting frame. During the test, only one type of disturbance test is performed.

[0008] In the above in-situ test device for undersea organisms, preferably, the plume disturbance simulation component includes a water pump, a water delivery pipeline, a disturbance nozzle, and a turbidity sensor. The water pump is connected to the disturbance nozzle through the water delivery pipeline. The outlet of the disturbance nozzle is located below the biological trapping cage and close to the seabed. The turbidity sensor is located inside the biological trapping cage. For the plume disturbance simulation component, the turbidity sensor is used to monitor the plume disturbance situation and is installed in each independent chamber of the biological trapping cage. The plume is obtained by the high-pressure water discharged by the water pump and the disturbance nozzle impacting the seabed sediment, simulating the impact of the jet disturbance of undersea mining on organisms.

[0009] In the above in-situ test device for undersea organisms, preferably, the noise disturbance simulation component includes a sound generator, a vibrator, and a hydrophone. The sound generator, the vibrator, and the hydrophone are all provided inside the biological trapping cage. For the noise disturbance simulation component, it simulates the noise and vibration emitted by undersea equipment due to motors or hydraulic pump stations, including a sound generator, a vibrator, and a hydrophone respectively installed in each independent chamber of the biological trapping cage. The noise generated by the sound generator and the vibrator is monitored by the hydrophone.

[0010] In the above in-situ test device for undersea organisms, preferably, the light pollution simulation component includes a light source and an underwater light sensor. The light source and the underwater light sensor are both provided inside the biological trapping cage. For the light pollution simulation component, it simulates the impact of the long-time lighting of underwater equipment on large undersea organisms, including a light source (such as a lighting lamp) and an underwater light sensor respectively installed in each independent chamber of the biological trapping cage. The light intensity is monitored by the underwater light sensor.

[0011] In the above in-situ test device for submarine organisms, preferably, the heavy metal pollution simulation component includes a heavy metal addition device and a heavy metal concentration monitoring sensor. The heavy metal addition device includes a reagent kit, a peristaltic metering pump, and an output pipe. The reagent kit is connected to the output pipe through the peristaltic metering pump. The outlet of the output pipe is located inside the biological trapping cage, and the heavy metal concentration monitoring sensor is located below the inside of the biological trapping cage. For the heavy metal pollution simulation component, it simulates heavy metals due to the corrosion or leakage of submarine equipment materials. The content of heavy metals is monitored and recorded by the heavy metal concentration monitoring sensor, which is installed below the biological trapping cage. In the heavy metal addition device, the reagent kit is located above the biological trapping cage, and the reagents in the reagent kit are quantitatively discharged according to a program by the peristaltic metering pump and discharged into the biological trapping cage to be tested through the output pipe.

[0012] In the above in-situ test device for submarine organisms, preferably, the biological trapping cage includes a pair of upper and lower aligned net plates. The upper and lower net plates are supported by vertical partitions and divided into multiple independent chambers with open sides. The biological trapping cage also includes multiple induction doors. The multiple induction doors correspond one-to-one with the multiple independent chambers and are respectively movably sleeved outside the multiple independent chambers. When in the trapping state, the induction doors support the bottom of the induction doors through electromagnetic release devices, keeping the sides of the independent chambers open. When in the state of completed trapping, the electromagnetic release devices release the support for the bottom of the induction doors, causing the induction doors to fall and close the sides of the independent chambers. Specifically, the overall biological trapping cage can be circular, and both the net plates and the induction doors are circular. The upper and lower net plates are divided into 5 independent chambers (or fewer or more) by vertical partitions in the middle. There is a food basket inside the cage, and both the vertical partitions and the induction doors can be of net plate structure. The induction doors correspond one-to-one with the number of independent chambers. When the electromagnetic release devices release the support for the bottom of the induction doors, the induction doors will drop due to gravity, sealing the sides of the independent chambers, thus forming a sealed chamber for limiting the trapped organisms, facilitating the conduct of perturbation tests. Multiple electromagnetic release devices can be set according to the situation. For example, two electromagnetic release devices are provided for each induction door, located on the left and right sides of the induction door respectively.

[0013] The timing for the above electromagnetic release devices to release the induction doors can be explained as follows: An underwater laser induction device and an underwater camera are used to determine whether a submarine organism has been trapped. Specifically, after the underwater laser induction device senses an object, it scans to obtain the three-dimensional information of the object. At the same time, further confirmation by software is carried out through the image and video of the underwater camera to ensure that the submarine organism is inside the biological trapping cage.

[0014] In the above-mentioned in-situ test device for seabed organisms, preferably, the electromagnetic release device includes a latch for supporting the sensing door, and the sensing door is provided with a socket for cooperating with the latch; when in the trapping state, the latch is inserted into the socket at the bottom of the sensing door to support the sensing door, and when in the trapping completion state, the latch is arranged in the socket at the upper part of the sensing door to lock the sensing door downward. The above-mentioned socket can be a mesh hole provided by the sensing door itself, and the latch can control the electromagnetic release device to execute the extension or retraction instruction. When the underwater laser sensing device and the underwater camera determine that the seabed organism has entered the biological trapping cage, the latch retracts and the sensing door is lowered to achieve the side sealing of the independent chamber. After the sensing door is lowered, the latch extends outward and is inserted into the socket at the top of the sensing door to achieve the upper limit of the sensing door, so as to prevent the seabed organism from breaking free from the biological trapping cage and causing the sensing door to slide up.

[0015] In the above-mentioned in-situ test device for seabed organisms, preferably, the outer side surface of the vertical partition is provided with a slide groove, the inner side surface of the induction door is provided with a slide rail, and the induction door is slidably arranged in the slide groove of the vertical partition through the slide rail. The scheme of the slide groove and the slide rail facilitates the rapid and smooth descent of the induction door to prevent the trapped seabed organisms from escaping.

[0016] In the above-mentioned in-situ test device for seabed organisms, preferably, the observation device includes an underwater camera and a fill light, and the underwater camera and the fill light are located in the biological trapping cage. The underwater camera is used to shoot the survival conditions of the seabed organisms in the biological trapping cage to form video data for research and analysis. The fill light is used to increase the brightness to improve the clarity of the shooting.

[0017] In the above in-situ test device for undersea organisms, preferably, the in-situ test device for undersea organisms further includes a control system and a buoyancy adjustment system for controlling the sinking or floating of the installation frame; the control system includes a power supply, a wireless communication device for communicating with the sea surface, an environmental measurement device for monitoring the undersea environment, and an underwater laser induction device for sensing whether undersea organisms enter the biological trapping cage. The power supply, the wireless communication device, the environmental measurement device, and the underwater laser induction device are all installed on the installation frame; the buoyancy adjustment system includes buoyancy materials above the installation frame and counterweights below the installation frame. The counterweights are connected to the installation frame through a release hook. The power supply is used to supply power to the entire test device. The wireless communication device is used to communicate with the mother ship on the sea surface to facilitate the control of the test device on the seabed by the sea surface. The environmental measurement device is used to monitor the undersea environment. The underwater laser induction device is used to cooperate with the underwater camera to judge the timing of the sliding of the induction door. The buoyancy materials can be buoyancy balls, which are used for the floating recovery of the installation frame after the test is completed. The counterweights are connected to the installation frame through the release hook. When the installation frame needs to sink, the release hook connects the counterweights to the installation frame. When the installation frame needs to float, the release hook releases, separating the counterweights from the installation frame, and the installation frame floats under the action of the buoyancy balls.

[0018] As a general technical concept, the present invention further provides an in-situ test system for undersea organisms, including the above in-situ test device for undersea organisms, and further including a mother ship located on the sea surface. The in-situ test system for undersea organisms of the present invention may further include a blank control test device, which is obtained by omitting the undersea disturbance simulation device from the above in-situ test device for undersea organisms. When the undersea disturbance simulation test is carried out on the in-situ test device for undersea organisms, the blank control test device does not carry out the disturbance test.

[0019] As a general technical concept, the present invention further provides an in-situ test method for undersea organisms using the above in-situ test system for undersea organisms, including the following steps: S1: The mother ship takes the in-situ test device for undersea organisms and the blank control test device to the test sea area and lowers the in-situ test device for undersea organisms and the blank control test device to the seabed; S2: Use the biological trapping cage to trap undersea organisms; when the biological trapping cage traps undersea organisms, limit them in the biological trapping cage, start the disturbance test using the undersea disturbance simulation device, and use the observation device to observe and record the survival conditions of the undersea organisms; the above disturbance test includes plume disturbance, noise disturbance, light pollution, and heavy metal pollution; S3: After the perturbation test is completed, recover the in-situ seabed organism test device and the blank control test device to the mother ship, take out the seabed organisms from the biological trapping cage for research, and further analyze the impact of the perturbation test on the seabed organisms.

[0020] The in-situ seabed organism test system of the present invention is deployed and recovered in an autonomous cable-free manner. After the equipment is deployed and landed once, in-situ testing and cultivation of the captured organisms can be carried out to simulate the possible impacts of human activities, specifically including setting in-situ factors such as plume perturbation, seabed light, noise, and heavy metals on the seabed. By arranging multiple in-situ seabed organism test devices and blank control test devices in the experimental area, observing the activities of seabed organisms under different influencing factors, the impacts of different human activities on seabed organisms can be evaluated.

[0021] Specifically, use the mother ship to bring the in-situ seabed organism test device and the blank control test device to the test sea area. After the in-situ seabed organism test device and the blank control test device are debugged and ready on the deck, the biological trapping cage is in an open state and is limited and fixed by an electromagnetic release device. Trapping food is placed in the food basket of the biological trapping cage. According to the test requirements, deploy one or more in-situ seabed organism test devices for carrying out plume perturbation tests, noise perturbation tests, light pollution tests, and heavy metal pollution tests, as well as one or more blank control test devices at preset coordinates to form a test monitoring array, and determine the deployment position and equipment status through a wireless communication device. At this time, only the low-power underwater laser induction device is used to detect the biological activities at the entrance of the biological trapping cage. If the underwater laser induction device detects a signal, the underwater camera in the corresponding biological trapping cage is activated. Whether there is a biological entry is identified through intelligent recognition of the video picture in the frame. If the program confirms that a biological enters the biological trapping cage, the electromagnetic release device is activated, the bolt retracts, and the corresponding induction door is quickly released under the action of gravity to complete the closing action. Then the bolt extends to further lock the position of the induction door, and the seabed organisms are in the biological trapping cage to start the next test. If the equipment traps seabed organisms, a specified signal is sent to the ship and the perturbation test automatically starts, and the corresponding sensors monitor the perturbation situation, and the underwater camera records the biological activity status. After a predetermined time of the test, communicate with the in-situ seabed organism test device through the surface wireless communication system to obtain the seabed operation information of the equipment, and selectively recover the in-situ seabed organism test device that has captured organisms and completed in-situ testing to the water surface according to the operation situation. The release process is as follows: a release signal is sent from the sea surface, the installation frame releases the counterweight, the counterweight is separated from the installation frame, and the installation frame floats to the sea surface under the action of the buoyancy material, and the equipment is recovered. Further analysis of the trapped organisms is carried out in the laboratory in combination with the seabed video data to evaluate the impact of the perturbation situation on the activities of seabed organisms.

[0022] The specific tests that can be carried out are as follows: Plume perturbation test: After detecting that the seabed organisms enter the biological trapping cage, the corresponding induction door closes, and the turbidity sensor and underwater camera inside the biological trapping cage start to record according to the program. At the same time, the perturbation nozzle under the corresponding biological trapping cage is opened through the water pump to simulate the jet perturbation of the seabed sediment. After reaching the set monitoring value, the perturbation stops. According to the program setting, the above perturbation process can be repeated once or multiple times, and the activity status of the trapped organisms is recorded through the underwater camera.

[0023] Noise perturbation test: After detecting that the seabed organisms enter the biological trapping cage, the corresponding induction door closes, and the hydrophone and underwater camera inside the biological trapping cage start to record according to the program. At the same time, the sound generator and vibrator are turned on, and the noise value is monitored through the hydrophone. After reaching the set monitoring value, the perturbation stops. According to the program setting, the above perturbation process can be repeated once or multiple times, and the activity status of the trapped organisms is recorded through the underwater camera.

[0024] Light pollution perturbation test: After detecting that the seabed organisms enter the biological trapping cage, the corresponding induction door closes, and the underwater light sensor and underwater camera inside the biological trapping cage start to record according to the program. At the same time, the light source is turned on, and the light intensity value is monitored through the underwater light sensor. After reaching the set monitoring value, the perturbation stops. According to the program setting, the above perturbation process can be repeated once or multiple times, and the activity status of the trapped organisms is recorded through the underwater camera.

[0025] Heavy metal pollution vibration test: After detecting that the seabed organisms enter the biological trapping cage, the corresponding induction door closes, and the heavy metal concentration monitoring sensor and underwater camera inside the biological trapping cage start to record according to the program. At the same time, a predetermined dose of reagent is added through the heavy metal adding device, and the reagent concentration is monitored through the heavy metal concentration monitoring sensor. After reaching the set monitoring value, the perturbation stops. According to the program setting, the above perturbation process can be repeated once or multiple times, and the activity status of the trapped organisms is recorded through the underwater camera.

[0026] Compared with the prior art, the advantages of the present invention are as follows: The in-situ test device, test system and test method for seabed organisms of the present invention use a biological trapping cage to trap organisms, and then use a seabed perturbation simulation device to simulate seabed perturbations, conduct in-situ test cultivation on the captured organisms, simulate the possible impacts of human activities, observe and record through an observation device, and observe the activities of seabed organisms under different perturbation influencing factors, so as to evaluate the impacts of different human activities on seabed organisms.

[0027] The overall structure of the in-situ test device and test system for seabed organisms of the present invention is simple, and modular design is adopted, which is conducive to the research on the impact of seabed organism environment perturbation. Description of the Drawings

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or in the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0029] Figure 1 Structural schematic diagram of the in-situ test device for undersea organisms in the embodiment (the biological trapping cage is in the open state).

[0030] Figure 2 For Figure 1 Side view.

[0031] Figure 3 Structural schematic diagram of the installation frame in the embodiment.

[0032] Figure 4 Structural schematic diagram of the in-situ test device for undersea organisms used for carrying out plume perturbation tests in the embodiment.

[0033] Figure 5 Structural schematic diagram of the in-situ test device for undersea organisms used for carrying out noise perturbation tests in the embodiment.

[0034] Figure 6 Structural schematic diagram of the in-situ test device for undersea organisms used for carrying out light pollution perturbation tests in the embodiment.

[0035] Figure 7 Structural schematic diagram of the in-situ test device for undersea organisms used for carrying out heavy metal pollution vibration tests in the embodiment.

[0036] Figure 8 Structural schematic diagram of the heavy metal adding device in the embodiment.

[0037] Figure 9 Structural schematic diagram of the biological trapping cage in the open state in the embodiment.

[0038] Figure 10 Structural schematic diagram of the biological trapping cage in the closed state in the embodiment.

[0039] Figure 11 Structural schematic diagram of the in-situ test system for undersea organisms in the embodiment.

[0040] Marking description 1. Installation frame; 2. Biological trapping cage; 21. Mesh panel; 22. Vertical partition; 23. Induction door; 24. Electromagnetic release device; 241. Bolt; 3. Plume disturbance simulation component; 31. Water pump; 32. Water delivery pipeline; 33. Disturbance nozzle; 34. Turbidity sensor; 4. Noise disturbance simulation component; 41. Sound generator; 42. Vibrator; 43. Hydrophone; 5. Light pollution simulation component; 51. Light source; 52. Underwater light sensor; 6. Heavy metal pollution simulation component; 61. Heavy metal addition device; 611. Kit; 612. Peristaltic metering pump; 613. Output pipe; 62. Heavy metal concentration monitoring sensor; 7. Observation device; 71. Underwater camera; 72. Supplementary light; 8. Control system; 81. Power supply; 82. Wireless communication device; 83. Environmental measurement device; 84. Underwater laser induction device; 9. Buoyancy adjustment system; 91. Buoyancy material; 92. Counterweight; 10. Mother ship. Detailed implementation manner

[0041] To facilitate the understanding of the present invention, the following will describe the present invention more comprehensively and meticulously in conjunction with the specification drawings and preferred embodiments, but the protection scope of the present invention is not limited to the following specific embodiments.

[0042] It should be particularly noted that when a certain element is described as "fixed to, fixedly connected to, connected to, or communicated with" another element, it can be directly fixed, fixedly connected, connected, or communicated to the other element, or it can be indirectly fixed, fixedly connected, connected, or communicated to the other element through other intermediate connecting members.

[0043] Unless otherwise defined, all professional terms used hereinafter have the same meaning as commonly understood by those skilled in the art. The professional terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the protection scope of the present invention.

[0044] Unless otherwise specifically stated, various raw materials, reagents, instruments, and equipment used in the present invention can be obtained through market purchases or can be prepared by existing methods.

[0045] Embodiment: As Figures 1 - 3 shown, the in-situ test device for seabed organisms in this embodiment includes an installation frame 1, on which a biological trapping cage 2 for trapping seabed organisms and limiting the seabed organisms is installed. The installation frame 1 is also provided with a seabed disturbance simulation device for in-situ simulating seabed disturbances and an observation device 7 for observing the survival conditions of the seabed organisms in the biological trapping cage 2 under the seabed disturbance scenarios simulated by the seabed disturbance simulation device.

[0046] In this embodiment, it includes multiple installation frames 1, which form a test monitoring array. A biological trapping cage 2 and an observation device 7 are provided on each installation frame 1. The seabed disturbance simulation device includes a plume disturbance simulation component 3, a noise disturbance simulation component 4, a light pollution simulation component 5, and a heavy metal pollution simulation component 6. The plume disturbance simulation component 3 is provided on at least one installation frame 1, the noise disturbance simulation component 4 is provided on at least one installation frame 1, the light pollution simulation component 5 is provided on at least one installation frame 1, and the heavy metal pollution simulation component 6 is provided on at least one installation frame 1. There is also a blank installation frame 1 without a seabed disturbance simulation device for blank control. When conducting a seabed disturbance simulation test, the blank control test devices of the in-situ seabed biological test devices respectively installed with the plume disturbance simulation component 3, the noise disturbance simulation component 4, the light pollution simulation component 5, and the heavy metal pollution simulation component 6 are placed in the seabed for the test.

[0047] As Figure 9 , Figure 10 shown, in this embodiment, the biological trapping cage 2 includes a pair of net plates 21 arranged vertically and aligned. The upper and lower net plates 21 are supported by vertical partitions 22 and separated into five independent chambers with open sides. The biological trapping cage 2 further includes five induction doors 23. The five induction doors 23 correspond to the five independent chambers one by one and are respectively movably sleeved outside the five independent chambers. When in the trapping state, the induction door 23 is supported at the bottom by an electromagnetic release device 24 to keep the side of the independent chamber open. When in the trapping completed state, the electromagnetic release device 24 releases the support for the bottom of the induction door 23, causing the induction door 23 to fall and close the side of the independent chamber. In other embodiments, the number of vertical partitions 22 can be increased or decreased to change the number of independent chambers. Correspondingly, the number of induction doors 23 can be adjusted accordingly.

[0048] In this embodiment, the electromagnetic release device 24 includes a bolt 241 for supporting the induction door 23, and the induction door 23 is provided with a jack for cooperating with the bolt 241. When in the trapping state, the bolt 241 is inserted into the jack at the bottom of the induction door 23 to support the induction door 23. When in the trapping completed state, the bolt 241 is inserted into the jack at the upper part of the induction door 23 to lock the induction door 23 downward.

[0049] In this embodiment, the outer side of the vertical partition 22 is provided with a chute, and the inner side of the induction door 23 is provided with a slide rail. The induction door 23 is slidably arranged in the chute of the vertical partition 22 through the slide rail.

[0050] As Figure 4As shown in the figure, in this embodiment, the plume disturbance simulation component 3 includes a water pump 31, a water delivery pipeline 32, a disturbance nozzle 33, and a turbidity sensor 34. The water pump 31 is connected to the disturbance nozzle 33 through the water delivery pipeline 32. The outlet of the disturbance nozzle 33 is located below the biological trapping cage 2 and close to the seabed. The turbidity sensor 34 is located inside the biological trapping cage 2. The above-mentioned water pump 31 is used to generate high-pressure water, which is sent to the disturbance nozzle 33 through the water delivery pipeline 32 for spraying. The disturbance nozzle 33 is located below each independent chamber of the biological trapping cage 2, and a turbidity sensor 34 is arranged in each independent chamber.

[0051] As Figure 5 shown in the figure, in this embodiment, the noise disturbance simulation component 4 includes a sound generator 41, a vibrator 42, and a hydrophone 43. The sound generator 41, the vibrator 42, and the hydrophone 43 are all arranged inside the biological trapping cage 2. The sound generator 41, the vibrator 42, and the hydrophone 43 are arranged in each independent chamber.

[0052] As Figure 6 shown in the figure, in this embodiment, the light pollution simulation component 5 includes a light source 51 and an underwater light sensor 52. The light source 51 and the underwater light sensor 52 are both arranged inside the biological trapping cage 2. The light source 51 and the underwater light sensor 52 are arranged in each independent chamber.

[0053] As Figure 7 and Figure 8 shown in the figure, in this embodiment, the heavy metal pollution simulation component 6 includes a heavy metal adding device 61 and a heavy metal concentration monitoring sensor 62. The heavy metal adding device 61 includes a reagent kit 611, a peristaltic metering pump 612, and an output pipe 613. The reagent kit 611 is connected to the output pipe 613 through the peristaltic metering pump 612. The outlet of the output pipe 613 is located inside the biological trapping cage 2. The heavy metal concentration monitoring sensor 62 is located below the interior of the biological trapping cage 2. The heavy metal concentration monitoring sensor 62 is arranged in each independent chamber, and the heavy metal reagent in the reagent kit 611 is sent to the output pipe 613 through the peristaltic metering pump 612 and discharged into each independent chamber.

[0054] As Figure 2 shown in the figure, in this embodiment, the observation device 7 includes an underwater camera 71 and a fill light 72. The underwater camera 71 and the fill light 72 are located inside the biological trapping cage 2.

[0055] As Figure 2 and Figure 3As shown in the figure, in this embodiment, the in-situ test device for submarine organisms further includes a control system 8 and a buoyancy adjustment system 9 for controlling the sinking or floating of the installation frame 1; the control system 8 includes a power supply 81, a wireless communication device 82 for communicating with the sea surface, an environmental measurement device 83 for monitoring the submarine environment, and an underwater laser induction device 84 for sensing whether submarine organisms enter the biological trap cage 2. The power supply 81, the wireless communication device 82, the environmental measurement device 83, and the underwater laser induction device 84 are all installed on the installation frame 1; the buoyancy adjustment system 9 includes a buoyancy material 91 located above the installation frame 1 and a counterweight 92 located below the installation frame 1. The counterweight 92 is connected to the installation frame 1 through a release hook.

[0056] As Figure 11 shown, the in-situ test system for submarine organisms in this embodiment includes the above-mentioned in-situ test device for submarine organisms, and further includes a mother ship 10 located on the sea surface. The mother ship 10 is connected to the in-situ test device for submarine organisms through wireless communication.

[0057] The method for conducting in-situ tests on submarine organisms using the above-mentioned in-situ test system for submarine organisms in this embodiment includes the following steps: S1: The mother ship 10 takes the in-situ test device for submarine organisms to the test sea area and lowers the in-situ test device for submarine organisms to the seabed. S2: Use the biological trap cage 2 to trap submarine organisms; when the biological trap cage 2 traps submarine organisms, limit them in the biological trap cage 2, start the perturbation test using the seabed perturbation simulation device, and use the observation device 7 to observe and record the survival conditions of the submarine organisms; the above-mentioned perturbation test includes plume perturbation, noise perturbation, light pollution, and heavy metal pollution. S3: After the perturbation test is completed, recover the in-situ test device for submarine organisms to the mother ship 10, take out the submarine organisms from the biological trap cage 2 for research, and further analyze the impact of the perturbation test on the submarine organisms.

[0058] The in-situ test system for submarine organisms in this embodiment is deployed and recovered in an autonomous cable-free manner. After the equipment is deployed and landed once, it can conduct in-situ test culture on the captured organisms, simulate the possible impacts of human activities, specifically including setting in-situ plume perturbation, seabed light, noise, heavy metals and other influencing factors on the seabed. By arranging multiple in-situ test devices for submarine organisms and blank control test devices in the experimental area, observe the activities of submarine organisms under different influencing factors, so as to evaluate the impacts of different human activities on submarine organisms. The specific process of the test can be referred to the previous text.

[0059] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and variations can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An in-situ test device for undersea organisms, characterized in that, It includes an installation frame (1), on which a biological trapping cage (2) for trapping and limiting undersea organisms is installed. The installation frame (1) is also provided with a seabed disturbance simulation device for in-situ simulating seabed disturbances and an observation device (7) for observing the survival conditions of the undersea organisms in the biological trapping cage (2) under the seabed disturbance scenarios simulated by the seabed disturbance simulation device.

2. The in-situ test device for submarine organisms according to claim 1, wherein, It includes a plurality of installation frames (1), on each of which a biological trapping cage (2) and an observation device (7) are provided. The seabed disturbance simulation device includes a plume disturbance simulation component (3), a noise disturbance simulation component (4), a light pollution simulation component (5), and a heavy metal pollution simulation component (6). The plume disturbance simulation component (3) is provided on at least one of the installation frames (1), the noise disturbance simulation component (4) is provided on at least one of the installation frames (1), the light pollution simulation component (5) is provided on at least one of the installation frames (1), and the heavy metal pollution simulation component (6) is provided on at least one of the installation frames (1).

3. The in-situ test device for undersea organisms according to claim 2, wherein The plume disturbance simulation component (3) includes a water pump (31), a water delivery pipeline (32), a disturbance nozzle (33), and a turbidity sensor (34). The water pump (31) is connected to the disturbance nozzle (33) through the water delivery pipeline (32). The outlet of the disturbance nozzle (33) is located below the biological trapping cage (2) and close to the seabed, and the turbidity sensor (34) is located inside the biological trapping cage (2). The noise disturbance simulation component (4) includes a sound generator (41), a vibrator (42), and a hydrophone (43). The sound generator (41), the vibrator (42), and the hydrophone (43) are all arranged inside the biological trapping cage (2). The light pollution simulation component (5) includes a light source (51) and an underwater light sensor (52). The light source (51) and the underwater light sensor (52) are both arranged inside the biological trapping cage (2). The heavy metal pollution simulation component (6) includes a heavy metal addition device (61) and a heavy metal concentration monitoring sensor (62). The heavy metal addition device (61) includes a reagent kit (611), a peristaltic metering pump (612), and an output pipe (613). The reagent kit (611) is connected to the output pipe (613) through the peristaltic metering pump (612). The outlet of the output pipe (613) is located inside the biological trapping cage (2), and the heavy metal concentration monitoring sensor (62) is located below the interior of the biological trapping cage (2).

4. The in-situ test device for submarine organisms according to claim 1, characterized in that, The biological trapping cage (2) includes a pair of net plates (21) arranged vertically aligned. The upper and lower net plates (21) are supported by vertical partitions (22) and separated into multiple independent chambers with open sides. The biological trapping cage (2) further includes a plurality of induction doors (23). The plurality of induction doors (23) correspond to the plurality of independent chambers one by one and are respectively movably sleeved outside the plurality of independent chambers. When in the trapping state, the induction door (23) is supported at the bottom by an electromagnetic release device (24) to keep the side of the independent chamber open. When in the state of completed trapping, the electromagnetic release device (24) releases the support for the bottom of the induction door (23), causing the induction door (23) to fall and close the side of the independent chamber.

5. The in-situ test device for undersea organisms according to claim 4, wherein The electromagnetic release device (24) includes a bolt (241) for supporting the induction door (23). The induction door (23) is provided with a jack for cooperating with the bolt (241). When in the trapping state, the bolt (241) is inserted into the jack at the bottom of the induction door (23) to support the induction door (23). When in the state of completed trapping, the bolt (241) is arranged in the jack at the upper part of the induction door (23) to lock the induction door (23) downward.

6. The in-situ test device for undersea organisms according to claim 4, wherein, The outer side of the vertical partition (22) is provided with a chute, and the inner side of the induction door (23) is provided with a slide rail. The induction door (23) is slidably arranged in the chute of the vertical partition (22) through the slide rail.

7. The in-situ test device for submarine organisms according to any one of claims 1-6, characterized in that, The observation device (7) includes an underwater camera (71) and a fill light (72). The underwater camera (71) and the fill light (72) are located inside the biological trapping cage (2).

8. The in-situ test device for submarine organisms according to any one of claims 1-6, characterized in that, The in-situ test device for undersea organisms further includes a control system (8) and a buoyancy adjustment system (9) for controlling the sinking or floating of the installation frame (1). The control system (8) includes a power supply (81), a wireless communication device (82) for communicating with the sea surface, an environmental measurement device (83) for monitoring the undersea environment, and an underwater laser induction device (84) for sensing whether undersea organisms enter the biological trapping cage (2). The power supply (81), the wireless communication device (82), the environmental measurement device (83), and the underwater laser induction device (84) are all installed on the installation frame (1). The buoyancy adjustment system (9) includes a buoyancy material (91) located above the installation frame (1) and a counterweight (92) located below the installation frame (1). The counterweight (92) is connected to the installation frame (1) through a release hook.

9. An in-situ test system for submarine organisms, characterized in that, The in-situ test device for undersea organisms including any one of claims 1-8 further includes a mother ship (10) located on the sea surface.

10. A method for in-situ testing of undersea organisms using the undersea organism in-situ testing system described in claim 9, characterized in that, Including the following steps: S1: The mother ship (10) takes the in-situ test device for undersea organisms to the test sea area and lowers the in-situ test device for undersea organisms to the seabed. S2: Use the biological trap cage (2) to trap seabed organisms; when the biological trap cage (2) traps seabed organisms, confine them within the biological trap cage (2), start the perturbation test using the seabed perturbation simulation device, and use the observation device (7) to observe and record the survival conditions of the seabed organisms; S3: After the perturbation test is completed, recover the seabed organism in-situ test device to the mother ship (10), take out the seabed organisms from the biological trap cage (2) for research, and further analyze the impact of the perturbation test on the seabed organisms.

Images