Modularized coast sand stabilization device

Abstract

The invention belongs to the technical field of coast protection and ecological restoration, and particularly relates to a modular coast sand stabilization device. Comprising a device body, an electro-deposition sand stabilization module, a power module, a control system, a communication module and an amphibious motion module, the electro-deposition sand stabilization module, the power module, the control system, the communication module and the amphibious motion module are all arranged on the device body, and the electro-deposition sand stabilization module is used for achieving power-on operation on a sand beach; the power supply module is used for supplying power for operation of the device, the communication module is used for realizing communication interconnection among a plurality of devices, and the amphibious motion module is used for driving the device to move. According to the method, ions such as Ca < 2 + > and Mg < 2 + > in seawater can be activated by applying current to the sand beach, mineral binders such as calcium carbonate and magnesium hydroxide are generated, and a solidified layer is formed, so that sand grains are effectively solidified, the stability of the sand beach is enhanced, seawater erosion is relieved, the erosion disaster resistance of the coast is improved, and the ecological environment of the sand beach is protected.

Description

Technical Field

[0001] The present invention belongs to the technical field of coastal protection and ecological restoration, and particularly relates to a modular coastal sand fixation device. Background Art

[0002] Coastal erosion is a major environmental problem faced by coastal areas around the world. According to statistics, about 24% of the sandy coastlines globally are retreating at a rate of more than 1 meter per year on average, and 30% of the erosion is directly caused by sea-level rise. Beaches and sand dunes, as natural protective barriers, can absorb 60%-90% of wave energy and effectively alleviate coastal erosion. However, extreme weather events triggered by climate change (such as a 40% increase in typhoon frequency) have exacerbated beach degradation, resulting in a global annual loss of approximately 500 square kilometers of beach area. This not only threatens the stability of coastal ecosystems (such as mangroves and coral reefs), but also directly affects the life safety and economic activities of more than 1 billion coastal residents. Traditional anti-erosion measures such as seawalls and beach nourishment can achieve short-term effects, but often only last for several years, with limitations such as high maintenance costs and the need for repeated reinforcement. In contrast, natural ecosystems such as coral reefs not only have stronger anti-disturbance capabilities, but also can achieve dynamic stability of the coastline through self-strengthening of the structure. However, it is difficult to achieve short-term effects by relying solely on ecological systems for sand fixation.

[0003] Beach solidification technology, which enhances the stability of beaches by increasing the bonding force between sand grains, has been a research hotspot in recent years. Among them, electrokinetic sand fixation technology has attracted much attention due to its unique advantages. The principle of this technology is to apply a weak electric current in the beach to activate Ca 2+ 、Mg 2+ plasma in seawater to generate mineral binders such as calcium carbonate (CaCO3) and magnesium hydroxide (Mg(OH)2), forming a solidified layer. Compared with chemical solidification methods, electrokinetic sand fixation technology uses natural components of seawater, has a smaller pH fluctuation, and no chemical additives, and can maintain the ecological functions of the beach. However, there is currently no specific device for applying electrokinetic sand fixation technology to actual sand fixation operations. Therefore, there is an urgent need to design a modular coastal sand fixation device that can effectively apply electrokinetic sand fixation technology to coastal sand fixation operations. Summary of the Invention

[0004] In view of the problems existing in the above-mentioned prior art, the present invention provides a modular coastal sand fixation device, and specifically discloses the following technical solutions:

[0005] A modular coastal sand fixation device, comprising a device main body, an electro-deposition sand fixation module, a power supply module, a control system, a communication module and an amphibious movement module. The electro-deposition sand fixation module, the power supply module, the control system, the communication module and the amphibious movement module are all arranged on the device main body. The electro-deposition sand fixation module is used to energize the beach, the power supply module is used to supply power to the device, the communication module is used to realize communication and interconnection between multiple devices, and the electro-deposition sand fixation module, the power supply module, the communication module and the amphibious movement module are all electrically connected to the control system. The amphibious movement module is used to drive the device to move.

[0006] Further, the electro-deposition sand fixation module is a retractable electrode, and the retractable electrode is installed at the bottom of the device main body. The retractable electrode includes a first electric telescopic bracket, the top end of the first electric telescopic bracket is fixedly connected to the device main body, the bottom end of the first electric telescopic bracket is fixedly connected with a flat electrode, and an intelligent voltage and current stabilizer controller is arranged on the flat electrode. The flat electrode is electrically connected to the power supply module through the intelligent voltage and current stabilizer controller.

[0007] Further, a first accommodation groove is opened at the bottom of the device main body, and the retractable electrode is installed in the first accommodation groove.

[0008] Further, the power supply module includes a solar power generation unit, a wave energy power generation unit and a battery pack. The solar power generation unit and the wave energy power generation unit are both electrically connected to the battery pack. The battery pack is used to store electric energy and supply power to the device.

[0009] Further, the solar power generation unit is a solar power generation panel, and the solar power generation panel is installed on the top of the device main body.

[0010] Further, the wave energy power generation unit includes two second electric telescopic brackets. The two second electric telescopic brackets are respectively installed on both sides of the device main body. A float mounting bracket is installed at the bottom end of each second electric telescopic bracket away from the device main body. An oscillating float is slidably installed on the float mounting bracket. A piezoelectric cantilever beam is fixedly connected to the bottom end of the float mounting bracket, and piezoelectric materials are arranged on the upper surface of the piezoelectric cantilever beam.

[0011] Further, second accommodation grooves are respectively opened on both sides of the device main body, and the wave energy power generation unit is installed in the second accommodation grooves.

[0012] Furthermore, the amphibious motion module includes a power system, paddles, traveling wheels and a drive shaft. The power system adopts a composite shaft nested structure. The outer layer of the power system is a traveling wheel brake layer, which adopts a magnetorheological fluid annular brake chamber. The inner layer of the power system is a blade brake layer, which adopts a titanium alloy hydraulic brake cylinder. The drive shaft is a hollow structure, and a telescopic push rod is arranged inside the drive shaft. One end of the drive shaft is transmission-connected to the traveling wheel brake layer of the power system, and the other end is fixedly connected to the traveling wheel. One end of the telescopic push rod is transmission-connected to the blade brake layer, and the other end is fixedly connected to the blade. A groove for storing the blade is arranged in the center of the traveling wheel.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention can activate Ca in seawater by applying electric current to the beach. 2+ Mg 2+ Plasma generates mineral binders such as calcium carbonate and magnesium hydroxide to form a solidified layer, thereby enhancing the stability of the beach, reducing seawater erosion, and effectively solidifying sand, enhancing the beach's anti-erosion ability, and protecting the beach's ecological environment. The sand fixation effect can be effective in the short term and will not cause pollution to the beach;

[0015] By setting up an amphibious motion module, the device is not only suitable for underwater coastal areas, but can also be used in intertidal zones and land areas, thus having a wider range of applications and fewer limitations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention in one state.

[0017] Figure 2 It is a structural schematic diagram of the present invention in another state.

[0018] Figure 3 It is a schematic diagram of the structure of the retractable electrode in the present invention.

[0019] Figure 4 It is a schematic diagram of the structure of the wave power generation unit in the present invention.

[0020] Figure 5 It is a schematic diagram of the structure of the blades, traveling wheels and driving shaft in the present invention.

[0021] 1—retractable electrode, 1-1—flat electrode, 1-2—first electric retractable bracket, 1-3—intelligent voltage and current stabilizing controller, 2—wave energy generation unit, 2-1—second electric retractable bracket, 2-2—oscillating float, 2-3—piezoelectric cantilever beam, 2-4—piezoelectric material, 3—amphibious motion module, 3-1—traveling wheel, 3-2—driving shaft, 3-3—blade, 4—solar power generation unit. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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] Reference Figures 1-5 A modular coastal sand fixation device includes a device body, an electrodeposition sand fixation module, a power module, a control system, a communication module and an amphibious motion module 3. The electrodeposition sand fixation module, the power module, the control system, the communication module and the amphibious motion module 3 are all arranged on the device body. The electrodeposition sand fixation module is used to energize the beach, the power module is used to power the device, and the communication module is used to realize communication interconnection between multiple devices. The electrodeposition sand fixation module, the power module, the communication module and the amphibious motion module 3 are all electrically connected to the control system, and the amphibious motion module 3 is used to drive the device to move.

[0024] In this embodiment, the electrodeposition sand fixation module is a retractable electrode 1, which is installed at the bottom of the device body. The retractable electrode 1 includes a first electric retractable bracket 1-2. The top of the first electric retractable bracket 1-2 is fixedly connected to the device body, and the bottom of the first electric retractable bracket 1-2 is fixedly connected to a flat electrode 1-1. An intelligent voltage and current regulator 1-3 is provided on the flat electrode 1-1, and the flat electrode 1-1 is electrically connected to the power module through the intelligent voltage and current regulator 1-3.

[0025] The flat electrode 1-1 is made of highly corrosion-resistant materials to ensure that the device can operate stably for a long time in seawater and land environments, is not affected by corrosion, and prolongs its service life. The power module is electrically connected to the intelligent voltage and current regulator 1-3, and adopts efficient energy conversion technology to provide a stable and adjustable weak current to the flat electrode 1-1 to ensure that the mineral deposition process is uniform and efficient. Through intelligent voltage stabilization and step-down control, the appropriate current intensity can be maintained regardless of solar power supply or external power supply mode to adapt to different environments and coastal conditions. The electrodeposition sand fixation unit has a built-in intelligent adjustment module that can dynamically adjust the current intensity according to the beach conditions and deposition requirements to ensure that a stable mineral bonding layer is formed between the sand particles and improve the sand fixation effect.

[0026] In this embodiment, a first receiving groove is provided at the bottom of the device body, and the retractable electrode 1 is installed in the first receiving groove. The retractable electrode 1 can extend out of the first receiving groove or retract into the first receiving groove to meet different working needs.

[0027] In this embodiment, the power module includes a solar power generation unit 4, a wave power generation unit 2 and a battery pack. The solar power generation unit 4 and the wave power generation unit 2 are both electrically connected to the battery pack, which is used to store electrical energy and power the device.

[0028] In this embodiment, the solar power generation unit 4 is a solar power generation panel, and the solar power generation panel is installed on the top of the device body.

[0029] In this embodiment, the wave energy power generation unit 2 includes a second electric telescopic bracket 2-1, the number of the second electric telescopic bracket 2-1 is two, and the two second electric telescopic brackets 2-1 are respectively installed on both sides of the device body, and a float mounting bracket is installed at the bottom of one end of each second electric telescopic bracket away from the device body, and an oscillating float 2-2 is slidably installed on the float mounting bracket. The bottom end of the float mounting bracket is fixedly connected to a piezoelectric cantilever beam 2-3, and the upper surface of the piezoelectric cantilever beam 2-3 is provided with a piezoelectric material 2-4.

[0030] In this embodiment, the power module has a multi-environmental adaptability design to ensure the stable operation of the device in a complex marine environment and meet the long-term needs of beach consolidation and coastal protection. The power module adopts a multi-source energy supply architecture: the basic energy is provided by solar panels and battery packs to achieve continuous power supply in sunny weather; in the aquatic mode, the device efficiently captures wave energy through the oscillating float 2-2 and the piezoelectric cantilever beam (the longitudinal motion of the oscillating float and the compressive deformation of the piezoelectric material 2-4 on the piezoelectric cantilever beam at the bottom of the float convert the kinetic energy of the waves into electrical energy).

[0031] In this embodiment, second accommodating grooves are respectively opened on both sides of the device body, and the wave energy power generation unit 2 is installed in the second accommodating grooves.

[0032] In this embodiment, the amphibious motion module 3 includes a power system, blades 3-3, traveling wheels 3-1 and a drive shaft 3-2. The power system adopts a composite shaft nested structure. The outer layer of the power system is a traveling wheel brake layer, and the traveling wheel brake layer adopts a magnetorheological fluid annular brake cavity. The inner layer of the power system is a blade brake layer, and the blade brake layer adopts a titanium alloy hydraulic brake cylinder. The drive shaft 3-2 is a hollow structure. The drive shaft 3-2 is both a structural connecting rod and a power transmission channel. The built-in telescopic push rod controls the storage and extension of the blade 3-3. One end of the drive shaft 3-2 is transmission-connected to the traveling wheel brake layer of the power system, and the other end is fixedly connected to the traveling wheel 3-1. One end of the telescopic push rod is transmission-connected to the blade brake layer, and the other end is fixedly connected to the blade 3-3. Independent braking of the traveling wheel 3-1 and the blade 3-3 can be achieved without affecting the telescopic function of the blade. A groove for storing the blade 3-3 is provided in the center of the traveling wheel 3-1.

[0033] The amphibious motion module 3 can achieve multiple mode switches, including the hybrid drive of the traveling wheel and the paddle, and the switching between the aquatic and land modes. When in the hybrid drive of the traveling wheel and the paddle, the paddle 3-3 extends out, and both the traveling wheel 3-1 and the paddle 3-3 are braked; when in the aquatic mode, the paddle 3-3 extends out, only the paddle 3-3 is braked, and the paddle rotation speed can be intelligently adjusted according to shallow water and deep water; when in the land mode, the paddle 3-3 is retracted into the traveling wheel 3-1, and only the traveling wheel 3-1 is braked.

[0034] In this embodiment, through interconnection, intelligent regulation and remote operation and maintenance, the communication module integrates multiple scattered devices into an organic whole, significantly improving the response speed, coverage accuracy and risk resistance ability of the devices, and is the core support for the devices to achieve large-scale, adaptive and sustainable operation. The communication module can realize real-time data interaction between devices, coordinate the working areas and operating parameters of each unit, avoid repeated operations or coverage blind spots, and ensure the efficient cooperation of the solidified network. By real-time transmitting environmental data such as water level, wave intensity and sand layer state, it can intelligently adjust the current intensity and working mode of each device (such as underwater / land switching), and improve the response ability to different coastal environments. The communication module supports remote status viewing and instruction issuing (such as start / stop, parameter modification), reduces the cost of manual inspection, and realizes the centralized control of multi-region devices at the same time. It can real-time monitor the health status of the devices (such as electrode loss, power supply abnormality), trigger alarms in time and start the standby module to take over tasks, ensuring the continuous and stable operation of the protection network.

[0035] Through the collaborative design of the wheel-paddle composite structure, the oscillating float 2-2 and the retractable electrode 1, the present invention breaks through the environmental limitations of traditional sand fixation equipment and realizes full-scenario adaptive operation in shallow water, intertidal zones, water surfaces, and on land. Shallow water mode: The flat electrode 1-1 fully extends and sinks underwater, making direct contact with the sand layer. The seabed sandbar is solidified by electro-deposition. The extension length of the flat electrode 1-1 is adjustable to adapt to different water depths. The wheel-paddle composite structure switches to the low-speed paddle mode, and the auxiliary device fine-tunes the position to avoid deviation caused by the impact of the sand flow. The oscillating float 2-2 shrinks into the main body of the device, and the built-in weight system is used to keep the device stable, reducing energy consumption. Intertidal zone mode: The wheel-paddle composite structure switches to the hybrid drive of the traveling wheel and the paddle blade, which can not only travel on the slippery sandy beach after the ebb tide but also briefly float and paddle when the tide is rising. The oscillating float 2-2 automatically adjusts the buoyancy according to the tide level. When the tide is low, the oscillating float 2-2 retracts to support the device to work on the exposed sandy beach. When the tide is high, the oscillating float 2-2 extends to provide 50% buoyancy, making the device semi-float in the shallow water area to avoid being washed away by the tide. Aquatic mode (floating on the water surface): The oscillating float 2-2 provides a stable floating base and converts the undulation of the waves into electrical energy. The wheel-paddle composite structure switches to the high-speed paddle mode and autonomously navigates to the target area in cooperation with GPS positioning. The retractable electrode 1 completely retracts into the device. Land mode: The paddle blade 3-3 in the wheel-paddle composite structure retracts into the traveling wheel 3-1, and all braking is completed by the traveling wheel 3-1. The oscillating float 2-2 retracts into the main body of the device, and the retractable electrode 1 is inserted into the sand layer to a depth of 20-50 cm, and the deep sand body is solidified by pulsed current.

[0036] Through modular deployment, intelligent environmental perception, and multi-mode collaborative operation, this device realizes the full-process automated operation of beach solidification and coastline protection. The specific process is as follows:

[0037] Step 1: According to the terrain and erosion degree of the target area, multiple devices are arranged at a preset interval on the beach or in shallow water to form a protection network.

[0038] Step 2: After the device is started, it automatically identifies the current environment through the environmental sensor and activates the corresponding working mode. Each device establishes a network through wireless communication to share location, environmental data, and device status, and the main control module or cloud platform plans the collaborative operation strategy.

[0039] Step 3: The control system calculates the optimal current intensity and pulse frequency through the AI algorithm according to the sand grain type, seawater salinity, and target solidification strength. After the electrode is energized, Ca 2+ , Mg 2+ and other plasma migrate directionally under the action of the electric field, forming a calcium carbonate / magnesium hydroxide crystal layer in the gaps between sand grains, binding the sand grains to form an erosion-resistant structure. The built-in sensor continuously monitors the resistivity and mechanical strength of the solidified layer. If a local weak area is detected, the current density in this area is automatically increased or the action time is extended.

[0040] Step 4: The main control module dynamically allocates the operation areas according to the positions and remaining power of each device (e.g., giving priority to treating high-erosion areas) to avoid repeated coverage.

[0041] Step 5: Predict the electrode life based on historical data and notify the replacement cycle in advance.

[0042] Through the current sand fixation technology, the present invention utilizes the electro-deposition sand fixation module during the beach solidification process. A slight current is applied through the flat electrode 1-1 to activate the minerals in seawater, solidifying the sand grains and enhancing the stability of the beach. The present invention realizes solidification by using the components of seawater itself, with small pH fluctuations and no chemical additives, which can maintain the ecological permeability of the beach and have a low impact on biodiversity.

[0043] The present invention can enable multiple devices to work in coordination, synchronize data in real time between devices, and the coverage range can be automatically adjusted along with the erosion front. Compared with artificial beach protection measures, the present invention not only improves the sand fixation efficiency but also reduces the external energy dependence through the way of self-sufficient energy, enhancing the sustainability.

[0044] The above are only preferred embodiments of the present invention, and do not impose any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A modular coastal sand fixation device, characterized in that, The device comprises a device body, an electro-deposition sand-fixing module, a power module, a control system, a communication module and an amphibious motion module. The electro-deposition sand-fixing module, the power module, the control system, the communication module and the amphibious motion module are all arranged on the device body. The electro-deposition sand-fixing module is used to energize the beach, the power module is used to power the device, and the communication module is used to realize communication interconnection between multiple devices. The electro-deposition sand-fixing module, the power module, the communication module and the amphibious motion module are all electrically connected to the control system, and the amphibious motion module is used to drive the device to move.

2. The modular coastal sand fixation device according to claim 1, characterized in that, The electro-deposition sand fixation module is a retractable electrode, which is installed at the bottom of the device body. The retractable electrode includes a first electric retractable bracket, the top of which is fixedly connected to the device body, and the bottom of which is fixedly connected to a flat electrode. An intelligent voltage and current regulator is provided on the flat electrode, and the flat electrode is electrically connected to a power module through the intelligent voltage and current regulator.

3. The modular coastal sand fixation device according to claim 2, wherein A first accommodating groove is provided at the bottom of the device body, and the retractable electrode is installed in the first accommodating groove.

4. A modular coastal sand fixation device according to claim 1, characterized in that, The power module includes a solar power generation unit, a wave power generation unit and a battery pack. The solar power generation unit and the wave power generation unit are both electrically connected to the battery pack, and the battery pack is used to store electrical energy and supply power to the device.

5. A modular coastal sand fixation device according to claim 4, characterized in that, The solar power generation unit is a solar power generation panel, and the solar power generation panel is installed on the top of the device body.

6. A modular coastal sand fixation device according to claim 4, characterized in that, The wave energy power generation unit includes a second electric telescopic bracket, the number of the second electric telescopic bracket is two, and the two second electric telescopic brackets are respectively installed on both sides of the device body, and a float mounting bracket is installed at the bottom of one end of each second electric telescopic bracket away from the device body, an oscillating float is slidably installed on the float mounting bracket, and a piezoelectric cantilever beam is fixedly connected to the bottom end of the float mounting bracket, and a piezoelectric material is arranged on the upper surface of the piezoelectric cantilever beam.

7. The modular coastal sand fixation device according to claim 6, characterized in that, Second accommodating grooves are respectively provided on both sides of the device body, and the wave energy power generation unit is installed in the second accommodating grooves.

8. A modular coastal sand fixation device according to claim 1, characterized in that, The amphibious motion module includes a power system, paddles, traveling wheels and a drive shaft. The power system adopts a composite shaft nested structure. The outer layer of the power system is a traveling wheel brake layer, which adopts a magnetorheological fluid annular brake cavity. The inner layer of the power system is a paddle brake layer, which adopts a titanium alloy hydraulic brake cylinder. The drive shaft is a hollow structure, and a telescopic push rod is arranged inside the drive shaft. One end of the drive shaft is transmission-connected to the traveling wheel brake layer of the power system, and the other end is fixedly connected to the traveling wheel. One end of the telescopic push rod is transmission-connected to the paddle brake layer, and the other end is fixedly connected to the paddle. A groove for storing the paddle is arranged in the center of the traveling wheel.

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