A wave energy based marine environment monitoring device
By combining electromagnetic and hydraulic power generation components, broadband energy capture was achieved, solving the problems of low energy capture efficiency and system complexity in traditional marine environmental monitoring devices, and ensuring a continuous and stable energy supply in complex marine environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN HAIKUI ENVIRONMENTAL MONITORING TECH CO LTD
- Filing Date
- 2025-09-24
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional marine environmental monitoring devices employ a single power generation mode, resulting in low energy capture efficiency and high system design complexity, making it difficult to operate reliably, continuously, and for a long period in complex marine environments.
A dual energy capture system combining electromagnetic and hydraulic power generation components is adopted. The electromagnetic power generation component captures low-frequency, high-amplitude wave energy, while the hydraulic power generation component captures high-frequency, low-amplitude wave energy, thus achieving broadband energy capture.
It significantly broadens the effective power generation spectrum, ensures continuous and stable energy harvesting under different ocean conditions, and solves the power supply and endurance problem of offshore monitoring equipment.
Smart Images

Figure CN224546232U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of marine environmental monitoring technology, and more specifically, to a marine environmental monitoring device based on wave energy. Background Technology
[0002] The wave energy-based marine environmental monitoring device is an intelligent buoy system that utilizes the kinetic energy of ocean waves to achieve autonomous power supply. Its core value lies in breaking through the dependence of traditional monitoring equipment on fixed power sources. By converting the up-and-down motion of waves into electrical energy, the device can be deployed for a long time in open sea areas far from the shore, continuously collecting multi-dimensional data including ocean current velocity, chlorophyll concentration, and heavy metal content. This real-time information is transmitted back to the control center via satellite link, which can provide key parameters for marine research institutions to predict El Niño phenomena, help maritime departments optimize shipping routes, and provide wave energy density distribution maps for coastal wind farms.
[0003] Traditional marine environmental monitoring devices typically employ a single power generation mode. The working principle of a single energy capture mechanism determines that its energy capture bandwidth is extremely narrow, often only able to produce efficient responses to waves of specific frequencies and amplitudes. In real marine environments, wave conditions are complex and variable, and wave spectra are composed of superimposed waves of different frequencies and amplitudes. Traditional devices cannot simultaneously adapt to high-frequency, small-amplitude and low-frequency, large-amplitude wave motions. When wave conditions deviate from their designed optimal operating point, their energy capture efficiency drops sharply, resulting in extremely unstable power generation with huge fluctuations. This not only makes it difficult to directly power downstream monitoring equipment but also places stringent requirements on the energy storage system, greatly increasing the complexity of system design.
[0004] In summary, in order to adapt to the complex marine environment and achieve stable power supply, it is necessary to address the problem that traditional marine environmental monitoring devices adopt a single power generation mode, which leads to a low average energy capture efficiency of the entire device and increases the complexity of system design. This would enable the device to operate reliably and continuously in the open sea for a long period of time. Utility Model Content
[0005] The present invention provides a wave energy-based marine environmental monitoring device, which aims to solve the problem that traditional marine environmental monitoring devices use a single power generation mode, resulting in a low average energy capture efficiency of the entire device and increasing the complexity of system design.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a wave energy-based marine environment monitoring device, comprising a bottom buoyancy shell, a sealed protective shell, and a top mounting shell, which are fixedly connected from bottom to top. An electromagnetic power generation component is installed inside the bottom buoyancy shell, and an energy storage controller is installed inside the sealed protective shell. The top mounting shell has multiple hydraulic cylinders and a slide groove. A hydraulic power generation component is installed inside the hydraulic cylinders, and a float is connected to the input end of the hydraulic power generation component. A lifting component is installed in the slide groove, and a sleeve is connected to the output end of the lifting component. The lifting component is used to drive the sleeve to move vertically. A rotating component is installed on the sleeve, and a sea surface detector is connected to the output end of the rotating component. The rotating component is used to drive the sea surface detector to rotate. The sea surface detector is used to record the sea surface environment in real time and transmit signals to the control system in the energy storage controller. The energy storage controller is used to receive, convert, and store the electrical energy generated by the electromagnetic power generation component and the hydraulic power generation component.
[0007] In a preferred embodiment, the electromagnetic power generation assembly includes a guide rod fixedly connected to the center of the bottom buoyancy shell, an armature slidably connected to the guide rod, an electromagnetic coil wound around the inner wall of the bottom buoyancy shell, and two compression springs with one end fixedly connected to the two ends of the armature, the other end of the compression springs being fixedly connected to the bottom buoyancy shell.
[0008] In a preferred embodiment, the hydraulic power generation assembly includes a piston slidably connected to a hydraulic cylinder, a push rod fixedly connected at one end to the piston, a first connecting rod rotatably connected at one end to the other end of the push rod, and a second connecting rod rotatably connected at one end to the other end of the first connecting rod, the other end of the second connecting rod being fixedly connected to a float.
[0009] In a preferred embodiment, the lifting assembly includes a first motor fixedly connected in a slide groove and a threaded rod fixedly connected to the output end of the first motor. The threaded rod and the sleeve are threadedly connected, and the first motor is used to drive the threaded rod to rotate.
[0010] In a preferred embodiment, the rotating assembly includes a second motor fixedly connected to the sleeve and a turntable fixedly connected to the output end of the second motor via a shaft. The turntable is fixedly connected to the sea surface detector, and the second motor is used to drive the turntable to rotate.
[0011] In a preferred embodiment, the top mounting shell is provided with a plurality of circumferentially arrayed connecting supports, which are rotatably connected to the second connecting rod. The outer wall of the sleeve is provided with two symmetrical limiting protrusions, which are slidably connected to the sliding groove.
[0012] In a preferred embodiment, a waterproof shell is fixedly connected to the bottom buoyancy shell, and a seabed detector is fixedly connected inside the waterproof shell. The seabed detector is used to record the seabed environment in real time and transmit signals to the control system in the energy storage controller. A cleaning component is installed on the waterproof shell.
[0013] In a preferred embodiment, the cleaning assembly includes a third motor fixedly connected inside a waterproof housing, a transmission rod fixedly connected to the output end of the third motor, and a cleaning brush fixedly connected to the transmission rod. The transmission rod is rotatably connected to the waterproof housing, and the third motor is used to drive the transmission rod to rotate.
[0014] The beneficial effects of this utility model are as follows: This invention captures the energy of low-frequency, high-amplitude waves using an electromagnetic power generation component, while a hydraulic power generation component efficiently converts the high-frequency, low-amplitude oscillations of the water surface into hydraulic energy to drive power generation. The two mechanisms complement each other, forming a wideband wave energy capture system that significantly broadens the effective power generation spectrum. This allows the device to achieve continuous and stable energy harvesting in both calm and stormy seas, ensuring a sufficient and stable power supply to the energy storage controller and all monitoring equipment, thus solving the power supply and endurance problem of offshore monitoring equipment. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.
[0016] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model.
[0017] Figure 3 This is a schematic diagram of the cleaning component structure of this utility model.
[0018] Figure 4 This is a schematic diagram of the bottom buoyancy shell structure of this utility model.
[0019] Figure 5 This is a schematic diagram of the hydraulic power generation component of this utility model.
[0020] Figure 6 This is a schematic diagram of the top mounting shell structure of this utility model.
[0021] Figure 7 This is a schematic diagram of the rotating component structure of this utility model.
[0022] Figure 8 This is a schematic diagram of another embodiment of the cleaning component of this utility model.
[0023] The attached diagram is labeled as follows: 1. Bottom buoyancy shell; 2. Sealing protective shell; 3. Top mounting shell; 301. Hydraulic cylinder; 302. Connecting support; 303. Slide groove; 401. Guide rod; 402. Armature; 403. Electromagnetic coil; 404. Compression spring; 5. Energy storage controller; 601. Piston; 602. Push rod; 603. First connecting rod; 604. Second connecting rod; 7. Float; 801. First motor; 802. Threaded rod; 9. Sleeve; 901. Limiting protrusion; 1001. Second motor; 1002. Turntable; 11. Sea surface detector; 12. Waterproof shell; 13. Seabed detector; 1401. Third motor; 1402. Transmission rod; 1403. Cleaning brush; 1501. Electric rod; 1502. Scraper; 1503. Fixing column. Detailed Implementation
[0024] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0025] Refer to the instruction manual appendix Figures 1 to 8 A wave energy-based marine environment monitoring device includes a bottom buoyancy shell 1, a sealed protective shell 2, and a top mounting shell 3, which are fixedly connected from bottom to top. An electromagnetic power generation component is installed inside the bottom buoyancy shell 1. An energy storage controller 5 is installed inside the sealed protective shell 2. Multiple hydraulic cylinders 301 and a slide 303 are provided inside the top mounting shell 3. A hydraulic power generation component is installed inside the hydraulic cylinders 301. A float 7 is connected to the input end of the hydraulic power generation component. A lifting component is installed inside the slide 303. A sleeve 9 is connected to the output end of the lifting component. The lifting component is used to drive the sleeve 9 to move vertically. A rotating component is installed on the sleeve 9. A sea surface detector 11 is connected to the output end of the rotating component. The rotating component is used to drive the sea surface detector 11 to rotate. The sea surface detector 11 is used to record the sea surface environment in real time and transmit signals to the control system in the energy storage controller 5. The energy storage controller 5 is used to receive, convert, and store the electrical energy generated by the electromagnetic power generation component and the hydraulic power generation component.
[0026] It should be noted that the bottom buoyancy shell 1 is made of buoyancy material to ensure that the device always floats on the sea surface at the designed draft depth. The sealed protective shell 2 protects the most critical and fragile electrical equipment inside from corrosion by seawater and salt spray. There are four hydraulic cylinders 301 in the top mounting shell 3, which are arranged in a ring to balance the force brought by waves from different directions. The float 7 is made of buoyancy material, is conical, and oscillates with the waves to drive the hydraulic power generation component to move, realizing the wave energy power generation process.
[0027] Refer to the instruction manual appendix Figure 3The electromagnetic power generation component includes a guide rod 401 fixedly connected to the center of the bottom buoyancy shell 1, an armature 402 slidably connected to the guide rod 401, an electromagnetic coil 403 wound around the inner wall of the bottom buoyancy shell 1, and two compression springs 404 with one end fixedly connected to the two ends of the armature 402, and the other end of the compression spring 404 fixedly connected to the bottom buoyancy shell 1.
[0028] It should be noted that the armature 402 has a through hole at its center, the size of which is the same as that of the guide rod 401, allowing the armature 402 to move linearly along the guide rod 401. When the wave-driven device accelerates upward, the armature 402 compresses the upper compression spring 404 and stretches the lower compression spring 404. When the wave-driven device accelerates downward, the armature 402 compresses the lower compression spring 404 and stretches the upper compression spring 404. In both cases, the armature 402 undergoes relative displacement with the electromagnetic coil 403, continuously cutting the magnetic field generated by the electromagnetic coil 403. According to the law of electromagnetic induction, an alternating induced current is generated in the electromagnetic coil 403, realizing the power generation process.
[0029] Refer to the instruction manual appendix Figure 2 and Figure 5 The hydraulic power generation assembly includes a piston 601 slidably connected in a hydraulic cylinder 301, a push rod 602 fixedly connected at one end to the piston 601, a first connecting rod 603 rotatably connected at one end to the other end of the push rod 602, and a second connecting rod 604 rotatably connected at one end to the other end of the first connecting rod 603. The other end of the second connecting rod 604 is fixedly connected to a float 7.
[0030] It should be noted that the piston 601 is equipped with a sealing ring that is interference-fitted with the hydraulic cylinder 301. The piston 601 divides the interior of the hydraulic cylinder 301 into two sealed spaces, an upper chamber and a lower chamber. The reciprocating motion within the cylinder will alternately compress and draw the hydraulic oil in the upper or lower chamber, thereby generating a high-pressure oil flow. Then, through the hydraulic oil passage inside the top mounting shell 3, the mechanical energy is transferred to the converter in the energy storage controller 5 to realize the power generation process.
[0031] Refer to the instruction manual appendix Figure 6 The lifting assembly includes a first motor 801 fixedly connected in the slide groove 303 and a threaded rod 802 fixedly connected to the output end of the first motor 801. The threaded rod 802 is threadedly connected to the sleeve 9. The first motor 801 is used to drive the threaded rod 802 to rotate.
[0032] It should be noted that the inner wall of the sleeve 9 is provided with a threaded line. The size of this threaded line is adapted to the size of the threaded rod 802 to achieve stable power transmission. The sleeve 9 is located between the slide groove 303 and the threaded rod 802, and its outer wall is smooth and in contact with the slide groove 303 to achieve stable sliding of the sleeve 9.
[0033] Another embodiment based on the lifting component: the method of driving the threaded rod 802 to rotate by the first motor 801 to realize the lifting movement of the sleeve 9 is improved to directly pushing the sleeve 9 to lift by the electric telescopic rod. The structure is simpler and avoids the problem of short equipment service life caused by the corrosion of the threaded rod 802 in the marine environment.
[0034] Refer to the instruction manual appendix Figure 7 The rotating assembly includes a second motor 1001 fixedly connected to the sleeve 9 and a turntable 1002 fixedly connected to the output end of the second motor 1001 via a shaft. The turntable 1002 is fixedly connected to the sea surface detector 11, and the second motor 1001 is used to drive the turntable 1002 to rotate.
[0035] It should be noted that the second motor 1001 is installed on the top of the sleeve 9 and has a protective shell on the outside, which drives the turntable 1002 to rotate, so as to realize the all-round detection of the sea surface detector 11.
[0036] Refer to the instruction manual appendix Figure 2 The top mounting shell 3 is provided with multiple circumferential array of connecting supports 302, which are rotatably connected to the second connecting rod 604. The outer wall of the sleeve 9 is provided with two symmetrical limiting protrusions 901, which are slidably connected to the sliding groove 303.
[0037] It should be noted that the slide groove 303 has two grooves, the size of which is adapted to the size of the limiting protrusion 901, so that the limiting protrusion 901 can only slide within the groove, thereby limiting the movement of the sleeve 9.
[0038] Refer to the instruction manual appendix Figure 4 A waterproof shell 12 is fixedly connected to the bottom buoyancy shell 1. A seabed detector 13 is fixedly connected inside the waterproof shell 12. The seabed detector 13 is used to record the seabed environment in real time and transmit signals to the control system in the energy storage controller 5. A cleaning component is installed on the waterproof shell 12.
[0039] It should be noted that the seabed detector 13 integrates multiple sensors, such as a pH sensor and a heavy metal sensor, to detect the seabed conditions in real time and transmit the detection signals to the energy storage controller 5 for analysis and processing.
[0040] Refer to the instruction manual appendix Figure 3 and Figure 4 The cleaning assembly includes a third motor 1401 fixedly connected inside the waterproof housing 12, a transmission rod 1402 fixedly connected to the output end of the third motor 1401, and a cleaning brush 1403 fixedly connected to the transmission rod 1402. The transmission rod 1402 is rotatably connected to the waterproof housing 12, and the third motor 1401 is used to drive the transmission rod 1402 to rotate.
[0041] It should be noted that the third motor 1401 is installed inside the waterproof shell 12, and drives the cleaning brush 1403 to rotate through the transmission rod 1402 to scrape away water scale and other contaminants on the surface of the seabed detector 13, ensuring the accuracy of the detector.
[0042] Based on another embodiment of the cleaning component, please refer to Figure 8 The rotary cleaning driven by the third motor 1401 is improved into a linear push cleaning by the electric rod 1501. The electric rod 1501 pushes the scraper 1502 to move back and forth in a linear motion on the surface of the seabed detector 13. At the same time, the fixed column 1503 limits the movement of the scraper 1502, making the movement of the scraper 1502 more stable. Compared with the rotary cleaning method, the linear back and forth scraping cleaning method has a larger coverage area, is less likely to have dead corners, and cleans more thoroughly.
[0043] Working principle: When the device floats on the sea surface, the waves drive the entire device up and down, causing the armature 402 to slide along the guide rod 401 under inertia, compressing or stretching the compression springs 404 at both ends, causing them to cut magnetic field lines relative to the fixed electromagnetic coil 403, generating an induced current. At the same time, the float 7 on the water surface oscillates with the waves, transmitting and amplifying the force through the second connecting rod 604 and the first connecting rod 603, pushing the push rod 602, which in turn drives the piston 601 in the hydraulic cylinder 301 to reciprocate, compressing the hydraulic oil to generate a high-pressure oil flow. The generated electrical energy is transmitted to the energy storage controller 5 in the sealed protective shell 2, and after passing through its internal system... After conversion and voltage stabilization, the energy is stored. The control system of the energy storage controller 5 supplies power to various electronic components, starting the first motor 801 and driving the threaded rod 802 to rotate. This causes the sleeve 9 to rise and fall stably on the threaded rod 802. The second motor 1001 at the top of the sleeve 9 drives the turntable 1002 to rotate, thereby causing the sea surface detector 11 to rotate horizontally. This enables comprehensive real-time monitoring of the sea surface environment, and the data is transmitted back to the control system. At the same time, the seabed detector 13 inside the waterproof shell 12 monitors the seabed environment. The third motor 1401 can drive the transmission rod 1402 to rotate the cleaning brush 1403 and scrape off the attached pollutants.
[0044] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. A marine environmental monitoring device based on wave energy, characterized in that: The device includes a bottom buoyancy shell (1), a sealed protective shell (2), and a top mounting shell (3) that are fixedly connected from bottom to top. An electromagnetic power generation component is installed inside the bottom buoyancy shell (1). An energy storage controller (5) is installed inside the sealed protective shell (2). Multiple hydraulic cylinders (301) and a slide (303) are provided inside the top mounting shell (3). A hydraulic power generation component is installed inside the hydraulic cylinder (301). A float (7) is connected to the input end of the hydraulic power generation component. A lifting component is installed inside the slide (303). A sleeve (9) is connected to the output end of the lifting component. The lifting component is used to drive the sleeve (9) to move vertically. A rotating component is installed on the sleeve (9). A sea surface detector (11) is connected to the output end of the rotating component. The rotating component is used to drive the sea surface detector (11) to rotate. The sea surface detector (11) is used to record the sea surface environment in real time and transmit signals to the control system in the energy storage controller (5). The energy storage controller (5) is used to receive, convert, and store the electrical energy generated by the electromagnetic power generation component and the hydraulic power generation component.
2. The wave energy-based marine environment monitoring device according to claim 1, characterized in that: The electromagnetic power generation assembly includes a guide rod (401) fixedly connected to the center of the bottom buoyancy shell (1), an armature (402) slidably connected to the guide rod (401), an electromagnetic coil (403) wound around the inner wall of the bottom buoyancy shell (1), and two compression springs (404) with one end fixedly connected to the two ends of the armature (402), and the other end of the compression spring (404) fixedly connected to the bottom buoyancy shell (1).
3. The wave energy-based marine environment monitoring device according to claim 1, characterized in that: The hydraulic power generation assembly includes a piston (601) slidably connected in a hydraulic cylinder (301), a push rod (602) fixedly connected at one end to the piston (601), a first connecting rod (603) rotatably connected at one end to the other end of the push rod (602), and a second connecting rod (604) rotatably connected at one end to the other end of the first connecting rod (603). The other end of the second connecting rod (604) is fixedly connected to a float (7).
4. The wave energy-based marine environment monitoring device according to claim 1, characterized in that: The lifting assembly includes a first motor (801) fixedly connected in the slide (303) and a threaded rod (802) fixedly connected to the output end of the first motor (801). The threaded rod (802) and the sleeve (9) are threadedly connected. The first motor (801) is used to drive the threaded rod (802) to rotate.
5. A wave energy-based marine environmental monitoring device according to claim 1, characterized in that: The rotating assembly includes a second motor (1001) fixedly connected to the sleeve (9) and a turntable (1002) fixedly connected to the output end of the second motor (1001) via a shaft. The turntable (1002) is fixedly connected to the sea surface detector (11), and the second motor (1001) is used to drive the turntable (1002) to rotate.
6. A wave energy-based marine environment monitoring device according to claim 3, characterized in that: The top mounting shell (3) is provided with multiple circumferential array of connecting supports (302), the connecting supports (302) are rotatably connected to the second connecting rod (604), and the outer wall of the sleeve (9) is provided with two symmetrical limiting protrusions (901), the limiting protrusions (901) and the sliding groove (303) are slidably connected.
7. A wave energy-based marine environmental monitoring device according to claim 1, characterized in that: A waterproof shell (12) is fixedly connected to the bottom buoyancy shell (1). A seabed detector (13) is fixedly connected inside the waterproof shell (12). The seabed detector (13) is used to record the seabed environment in real time and transmit signals to the control system in the energy storage controller (5). A cleaning component is installed on the waterproof shell (12).
8. A wave energy-based marine environmental monitoring device according to claim 7, characterized in that: The cleaning assembly includes a third motor (1401) fixedly connected inside the waterproof housing (12), a transmission rod (1402) fixedly connected to the output end of the third motor (1401), and a cleaning brush (1403) fixedly connected to the transmission rod (1402). The transmission rod (1402) is rotatably connected to the waterproof housing (12), and the third motor (1401) is used to drive the transmission rod (1402) to rotate.