Unpowered bottom layer drift lander based on bionics

Abstract

The application provides an unpowered bottom layer floating lander based on bionic principle, which comprises a floating body, a lander body, a plurality of hanging devices, a flexible bearing cable and a plurality of ballast; the floating body is connected with the lander body through the hanging devices; the flexible bearing cable is connected between the floating body and the lander body in a slack manner; the lander body comprises a controller, a battery connected with the controller and a plurality of throw-off devices; the throw-off devices are connected with the ballast; and the controller is further connected with the hanging devices. The unpowered bottom layer floating lander based on bionic principle changes the rigid connection of the traditional lander into the flexible cable connection based on the bionic principle of spider silk flight; and the propulsion of the sea current to the flexible cable is utilized to realize the unpowered cruising of the lander near the bottom.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ocean equipment lander, and particularly relates to a non-powered bottom layer drift lander based on bionic principle. BACKGROUND

[0002] The deep-sea lander reaches the sea bottom by using its own gravity, performs bottom-lying observation and sampling, and then floats up by throwing load. Generally, the lander cannot move once it is bottom-lying, and the main influencing factor is limited by energy supply and system complexity. CN216611553U discloses a deep-sea lander, which provides certain mobility for itself by increasing the amount of electricity, propeller and acoustic communication equipment, but at the same time increases the system complexity and overall weight; and the system composition is close to the unmanned underwater vehicle, which greatly increases the research and development cost.

[0003] Therefore, on the basis of fully utilizing the non-powered and low-cost characteristics of the lander, improving the mobility of the lander is beneficial to expand its application scenarios in deep-sea scientific research and exploration. SUMMARY

[0004] In view of the above deficiencies in the prior art, the present application provides a non-powered bottom layer drift lander based on bionic principle, which converts the rigid connection of the traditional lander into flexible cable connection based on the bionic principle of spider silk flight; and the propulsion of the sea current on the flexible cable realizes the non-powered cruising of the lander near the bottom.

[0005] In order to achieve the above purpose, the present application provides a non-powered bottom layer drift lander based on bionic principle, which comprises a floating body, a lander body, a plurality of hanging devices, a flexible load-bearing cable and a plurality of ballast; the floating body is connected to the lander body through the hanging device; the flexible load-bearing cable is connected between the floating body and the lander body in a relaxed manner; the lander body comprises a controller, a battery connected to the controller and a plurality of load-throwing devices; the load-throwing device is connected to the ballast; and the controller is also connected to the hanging device.

[0006] Preferably, the load-throwing device comprises a mechanical load-throwing device, an electromagnetic load-throwing device, an electrochemical fuse load-throwing device or an electromagnetic adsorption device with power-on degaussing.

[0007] Preferably, the hanging device comprises a mechanical hanging device, an electromagnetic hanging device, an electrochemical fuse hanging device or an electromagnetic adsorption device with power-on degaussing.

[0008] Preferably, the lander body further comprises a buoyancy device.

[0009] Preferably, the buoyancy device comprises a rubber capsule, an oil pump and an oil supply device; the oil supply device is connected with the rubber capsule through a pipeline, and the oil pump is installed on the pipeline; and the rubber capsule is installed on the lander body.

[0010] Preferably, the buoyancy device comprises a plurality of vertical propellers; and the vertical propellers are installed on the lander body.

[0011] The present application has the following beneficial effects due to the above technical solutions:

[0012] Based on the bionic principle of spider silk flight, the rigid connection of the traditional lander is changed into the flexible bearing cable connection. The propulsion of the sea current on the flexible bearing cable is utilized to realize the unpowered cruising of the lander body near the bottom. Further, by adjusting the weight of the ballast, the unpowered cruising at different depths, even the full sea depth, can be realized, which greatly expands the application scene of the lander which can only work on the bottom, and provides a new technical idea for deep sea scientific research and exploration. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 Fig. 1 is a structural schematic diagram of a first deployment process of the unpowered bottom layer drifting lander based on the bionic principle according to an embodiment of the present application;

[0014] Fig. 2 Fig. 2 is a structural schematic diagram of a second deployment process of the unpowered bottom layer drifting lander based on the bionic principle according to an embodiment of the present application. DETAILED DESCRIPTION

[0015] The preferred embodiments of the present application will be described below with reference to the accompanying drawings Figs. 1-2 , so that the functions and characteristics of the present application can be better understood.

[0016] Please refer to Figs. 1-2 , the unpowered bottom layer drifting lander based on the bionic principle according to an embodiment of the present application comprises a floating body 1, a lander body 2, a plurality of hanging devices 4, a flexible bearing cable 5 and a plurality of ballasts; the floating body 1 is connected with the lander body 2 through the hanging devices 4; the flexible bearing cable 5 is connected between the floating body 1 and the lander body 2 in a relaxed manner; the lander body 2 comprises a controller 21, a battery 22 connected with the controller 21 and a plurality of throw weight devices 23; the throw weight devices 23 are connected with the ballasts; and the controller 21 is further connected with the hanging devices 4.

[0017] The throw weight devices 23 comprise mechanical throw weight devices, electromagnetic throw weight devices, electrochemical fuse throw weight devices or electromagnetic adsorption devices which are powered on and demagnetized.

[0018] The hanging device 4 comprises a mechanical hanging device, an electromagnetic hanging device, an electrochemical melting hanging device or an electromagnetic adsorption device with power-on demagnetization.

[0019] The controller 21 is used for controlling the hanging device 4 and the ballast throwing device 23; the battery 22 is used for supplying energy; and the ballast throwing device 23 is used for connecting and throwing the ballast. The hanging device 4 and the ballast throwing device 23 are most advantageous to adopt the electromagnetic adsorption device with power-on demagnetization. That is, under the condition of power-off, the permanent magnet in the device is used to realize the adsorption function of the ballast; and under the condition of power-on, the coil in the device generates a magnetic field opposite to the permanent magnet, so as to throw the ballast and separate the lander body 2 from the float 1.

[0020] The ballast is divided into two parts, i.e., the first ballast 31 and the second ballast 32, and is thrown in two batches, wherein the second ballast 32 is thrown in the first batch, and the first ballast 31 is thrown in the second batch.

[0021] The float 1 and the lander body 2 are connected through the hanging device 4 and the flexible bearing cable 5 at the same time. The hanging device 4 has the functions of hanging and separating; and the flexible bearing cable 5 is wound between the float 1 and the lander body 2 and is easy to be unfolded.

[0022] The lander body 2 carries the first ballast 31 and the second ballast 32, and the ballast can be thrown through the control of the controller 21 on the ballast throwing device 23. The built-in battery 22 supplies power for the controller 21 and the ballast throwing device 23.

[0023] The deployment process of the embodiment one of the application is as follows:

[0024] The lander body 2 and the float 1 are connected through the hanging device 4 and are hung into water together, and sink into the seabed by using the gravity. As shown in FIG. 2, at this time, the float 1 and the lander body 2 are connected through the hanging device 4, and the lander body 2 carries all the ballast. Fig. 1

[0025] After the lander body 2 completes the bottom-observation or sampling task, the controller 21 sends a command to control the hanging device 4 to perform a separation action, such as mechanical unhooking or electromagnetic separation. The float 1 floats away from the seabed under the action of its own buoyancy, and at the same time, drags the flexible bearing cable 5 to make it open.

[0026] The controller 21 continues to send a command to control the ballast throwing device 23 to throw the second ballast 32. At this time, the system composed of the lander body 2 and the float 1 is in a state of zero buoyancy or weak negative buoyancy (determined by the flow velocity of the sea area, the greater the flow velocity, the greater the required negative buoyancy).

[0027] ​Under the bottom current action, the floating body 1 and the flexible bearing cable 5 pull the lander body 2 to drift near the bottom. The principle is similar to that the spider spits silk into the air and flies under the action of wind. The lander body 2 can perform the near-bottom dynamic cruising observation and other operations.

[0028] After the operation is completed, the controller 21 issues an instruction to control the weight-throwing device 23 to throw away the first ballast 31, and the lander returns to the water surface by using its own buoyancy.

[0029] The second embodiment of the application is a non-powered bottom drifting lander based on the bionics principle, which has basically the same structure as the first embodiment, and the difference is that it can be converted into a powered form under the condition of sufficient power supply. The lander body 2 further comprises a buoyancy device.

[0030] The first mode: the buoyancy device comprises a rubber capsule, an oil pump and an oil supply device; the oil supply device is connected to the rubber capsule through a pipeline, and the oil pump is installed on the pipeline; the rubber capsule is installed on the lander body 2.

[0031] The second mode: the buoyancy device comprises a plurality of vertical propellers; the vertical propellers are installed on the lander body 2.

[0032] Whether it is in the powered form or the non-powered form, on the premise of fully understanding the flow rate, temperature, salinity, density and other physical and chemical indexes of the sea area, the system can obtain zero buoyancy or the required weak negative buoyancy at each depth layer by adjusting the ballast weight, the oil volume or the propeller thrust, so as to realize the drifting cruising in a larger depth range, even the full sea depth.

[0033] The above embodiments of the application are described in detail in combination with the drawings, and those of ordinary skill in the art can make various changes to the application according to the above description. Therefore, some details in the embodiments should not constitute a limitation on the application, and the scope of protection of the application will be defined by the appended claims.

Claims

1. A biomimetic, unpowered, bottom-drifting lander, characterized in that, It includes a float (1), a lander body (2), several hoisting devices (4), a flexible load-bearing cable (5), and multiple ballasts; The float (1) is connected to the lander body (2) via the suspension device (4); the flexible load-bearing cable (5) is loosely connected between the float (1) and the lander body (2) to form a flexible traction connection in a driftable state after the suspension device (4) is released. The lander body (2) includes a controller (21), a battery (22) connected to the controller (21), and multiple jettisoning devices (23); the jettisoning devices (23) are connected to the ballast; the controller (21) is also connected to the hoisting device (4); The throwing device (23) includes a mechanical throwing device, an electromagnetic throwing device, an electrochemical fuse throwing device, or an electrically demagnetized electromagnetic adsorption device. The throwing device (23) is connected to multiple ballasts, including a first ballast for achieving weak negative buoyancy drift and a second ballast for achieving return buoyancy. The controller (21) is configured to: after the lander body (2) sits on the bottom, control the hoisting device (4) to separate the float (1) and release the first ballast, so that the lander body (2) drifts near the bottom with the seabed current under the traction of the flexible load-bearing cable (5); after the drifting operation is completed, control the release of the second ballast to achieve overall resurfacing.

2. The biomimetic-based unpowered bottom-drifting lander according to claim 1, characterized in that, The hanging device (4) includes a mechanical hanging device, an electromagnetic hanging device, an electrochemical fusing hanging device, or an electrically demagnetized electromagnetic adsorption device.

3. The biomimetic-based unpowered bottom-drifting lander according to claim 1, characterized in that, The lander body (2) also includes a buoyancy device.

4. The biomimetic-based unpowered bottom-drifting lander according to claim 3, characterized in that, The buoyancy device includes a rubber bladder, an oil pump, and an oil supply device; the oil supply device is connected to the rubber bladder through a pipeline, and the oil pump is installed on the pipeline; the rubber bladder is installed on the lander body (2).

5. The biomimetic-based unpowered bottom-drifting lander according to claim 3, characterized in that, The buoyancy device includes several vertical thrusters; the vertical thrusters are mounted on the lander body (2).

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