A sliding power generation device for a cable-climbing ocean profiler based on wave energy

By designing a sliding power generation device based on wave energy, the three-wheel structure of the generator wheel and the guide wheel is in close contact with the cable, and dynamically adjusting the power generation load, the problem of insufficient power supply of cable-climbing marine profiler is solved, efficient energy collection and power supply is achieved, equipment wear and maintenance costs are reduced, and operating reliability is improved.

CN119288740BActive Publication Date: 2025-03-11ZHEJIANG UNIV
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Patent Information

Application Number
CN202411816482.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-03-11
Estimated Expiration
2044-12-11

AI Technical Summary

Technical Problem

The existing cable-climbing marine profiler is insufficient in long-term deployment, resulting in complex equipment operation and short continuous observation time. Especially in remote sea or polar environments, frequent recycling and redeployment increases scientific research costs.

Method used

A sliding power generation device based on wave energy is designed, including floats, heavy objects, cables, cable-climbing marine profiler and sliding power generation unit. The three-wheel structure of the generator wheel and the guide wheel is in close contact with the cable, and the wave intensity and frequency are monitored in real time through the control unit, and the generator's power generation load is dynamically adjusted to achieve efficient energy collection and power supply.

Benefits of technology

It realizes efficient energy collection and power supply, dynamic load regulation adapts to a variety of sea conditions, reduces equipment wear and maintenance costs, extends the equipment's working cycle, and improves operating reliability in complex marine environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a sliding power generation device for a cable-climbing ocean profiler based on wave energy, which belongs to the field of ocean observation equipment. It includes buoys, cables and weights connected in sequence, and a self-generating ocean monitoring module consisting of a cable-climbing ocean profiler, a mechanical clamping device and a sliding power generation unit fixedly connected is arranged on the cable; the cable-climbing ocean profiler is used to monitor ocean parameters, and the mechanical clamping device is used to realize the periodic up and down movement of the self-generating ocean monitoring module relative to the cable. The sliding power generation unit includes a generator, a control unit and a generator wheel. When the generator wheel moves relative to the cable, it drives the generator to generate electricity. The control unit is used to monitor the intensity and frequency of waves in real time, and dynamically adjust the power generation load of the generator. The present invention not only extends the working cycle of the cable-climbing ocean profiler, but also reduces the maintenance cost. It is suitable for long-term observation needs in complex environments such as the open sea and the polar regions, and has important application prospects and economic value.
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Description

Technical Field

[0001] The invention belongs to the field of ocean observation equipment, and in particular relates to a cable-climbing ocean profiler sliding power generation device based on wave energy. Background Art

[0002] With the increasing prominence of global climate change and marine ecological and environmental issues, the importance of marine observation technology has become increasingly prominent. Especially in oceanographic research, the demand for long-term and continuous monitoring of marine environmental parameters (such as temperature, salinity, dissolved oxygen, carbon dioxide partial pressure, pH, etc.) is increasing. In order to achieve high-resolution profile data acquisition, cable-climbing ocean profilers (such as Seahorse, Wirewalker, Prawler, etc.) are widely used. This type of instrument converts the up and down movement of waves into vertical movement of the profiler through a mechanical clamping device installed on the profiler, allowing it to move up and down along a pre-deployed cable or anchoring system to collect ocean parameters at different depths. Because it can achieve up and down profile movement without electric drive, it has become an important tool in the field of marine observation.

[0003] However, although this mechanical drive system can efficiently use wave energy for movement, the multi-parameter sensors it carries still rely on built-in batteries for power supply. When the battery is exhausted, the profiler must be recovered for battery replacement or charging, which not only increases the complexity of equipment operation, but also greatly shortens its continuous observation time. Especially in the open sea or polar environments, frequent recovery and redeployment will significantly increase scientific research costs and limit long-term, continuous data collection capabilities. Therefore, how to provide a reliable and continuous power supply for these ocean profilers has become an urgent problem to be solved.

[0004] As a clean and renewable energy source, wave energy in the ocean has great development potential. Wave energy has high density, wide distribution, and almost uninterrupted and stable energy source. Using wave energy to power ocean instruments can effectively solve the power supply problem of profiler sensors and achieve long-term autonomous observation. However, common wave energy power generation technology is mainly concentrated in large-scale marine power generation equipment, while the technology of using wave energy to power small marine equipment (such as cable-climbing ocean profilers) has not yet fully matured. Summary of the invention

[0005] In order to solve the problems in the prior art, the present invention proposes a cable-climbing ocean profiler sliding power generation device based on wave energy.

[0006] The technical solution adopted by the present invention is as follows:

[0007] In the first aspect, the present invention discloses a cable-climbing ocean profiler sliding power generation device based on wave energy, comprising a buoy, a weight, a cable, a cable-climbing ocean profiler and a sliding power generation unit; the buoy is located on the sea surface, the lower part is connected to the cable, the end of the cable is connected to the weight, the cable-climbing ocean profiler and the sliding power generation unit are both penetrated by the cable, and the sliding power generation unit is fixed inside the cable-climbing ocean profiler; the sliding power generation unit comprises a shell, a generator, a control unit, a generator wheel and two guide wheels; the generator wheel and the guide wheel are arranged on the inner side wall of the shell opposite to each other, and the guide wheel and the generator wheel are opposite to each other. The cable is squeezed to ensure that the cable always maintains close contact with the generator wheel; the generator wheel is connected to the input shaft of the generator; the control unit is used to monitor the intensity and frequency of waves in real time, and dynamically adjust the power generation load of the generator; when the cable-climbing ocean profiler slides up and down along the cable, the cable drives the generator wheel to rotate, and the generator wheel drives the rotor of the generator to rotate through the input shaft, so that the generator generates electrical energy; the electrical energy generated by the generator is stored in the battery of the cable-climbing ocean profiler, or is directly used for the control unit and the sensor of the cable-climbing ocean profiler.

[0008] In the second aspect, the present invention discloses a sliding power generation method using the device. When the cable-climbing ocean profiler slides up and down along the cable, the cable will drive the generator wheel to rotate. The generator wheel drives the rotor of the generator to rotate through the input shaft, so that the generator generates electricity. The electricity generated by the generator is stored in the battery of the cable-climbing ocean profiler, or directly used for the control unit and the sensor of the profiler; at the same time, the control unit will monitor the intensity and frequency of the waves in real time, and dynamically adjust the power generation load of the generator to ensure that the sliding power generation unit can operate efficiently under various wave conditions. Compared with the prior art, the present invention has the following beneficial effects:

[0009] (1) Efficient energy collection and power supply: The generator wheel in the sliding power generation unit of the present invention is in close frictional contact with the cable. Under the action of waves, the generator wheel moves relative to the cable along with the ocean profiler, and the generator wheel drives the generator to generate electricity, realizing efficient conversion of wave energy into electrical energy. The resulting electrical energy provides continuous power for the sensors and control unit inside the profiler. In addition, since the wave size often changes, the cable movement is uncontrollable. When the generator wheel and the guide wheel are completely rigidly fixed, sliding friction (rather than rolling friction) or loose grip often occurs between the generator wheel and the cable. The present invention designs the generator wheel to be able to swing up and down elastically with a small amplitude between the two guide wheels to adapt to the different thrusts of the waves. This swinging design can automatically adjust the grip of the generator wheel on the cable, avoid sliding friction, and increase the friction during rolling friction to achieve stable energy transfer. The above design overcomes the problem of battery exhaustion and need to be recycled in existing profiler equipment, allowing the profiler to be deployed in the ocean for a long time, achieving autonomous power supply and extending the working cycle of the equipment.

[0010] (2) Dynamic load adjustment to adapt to various sea conditions: The control unit of the present invention dynamically adjusts the power generation load of the generator by monitoring the intensity and frequency of the waves in real time. This technical means overcomes the problem of low efficiency of traditional fixed load design under different wave conditions, allowing the power generation unit to increase the power generation load when the waves are strong to improve the power generation efficiency, and reduce the load when the waves are weak to reduce the resistance to sliding movement, thereby ensuring that the equipment can operate stably under various sea conditions. This automatic adjustment mechanism effectively improves energy utilization efficiency and reduces the hindrance to sliding movement under low wave conditions.

[0011] (3) Reduce equipment wear and maintenance costs: The present invention adopts a three-wheel structure of a generator wheel and two guide wheels to stably clamp the cable, reduce cable deviation and friction loss, and enable the generator wheel to rotate stably and efficiently to generate electricity under wave drive. At the same time, the control unit has self-protection and fault handling functions. When the wave intensity is too large or the equipment has abnormal sliding, it will automatically reduce the power generation load or stop power generation to avoid damage to the power generation unit due to excessive friction. This design reduces equipment wear, extends equipment life, and reduces maintenance costs in difficult-to-access environments such as the open sea and polar regions. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a cable-climbing ocean profiler;

[0013] Figure 2 This is a schematic diagram of a sliding power generation device based on wave energy;

[0014] Figure 3 It is the control function of the sliding power generation unit;

[0015] Figure 4 It is a flow chart of power generation load regulation control;

[0016] Figure 5 It is a system protection and fault handling control flow chart. DETAILED DESCRIPTION

[0017] The present invention is further described and illustrated below in conjunction with specific embodiments. The embodiments are merely exemplary of the present disclosure and do not define the scope of limitation. The technical features of each embodiment of the present invention may be combined accordingly without conflicting with each other.

[0018] Although existing cable-climbing ocean profilers can move up and down through wave drive, their internal sensors and electronic devices still rely on batteries for power supply, which severely limits the continuous working time of the profiler. To solve this problem, existing technologies have to frequently recover and redeploy the profiler, which not only increases the maintenance cost of the equipment, but also limits its long-term observation capabilities in inaccessible areas such as the open sea and polar regions.

[0019] Therefore, the present invention proposes a sliding power generation device based on wave energy suitable for a cable-climbing ocean profiler, which is mainly used to solve the problem of insufficient power supply of existing ocean profilers during long-term deployment. By designing an efficient sliding power generation device, the present invention can use the wave energy in the ocean to power the sensors and control system of the profiler, greatly extending the working cycle of the profiler and improving its operating reliability in complex marine environments.

[0020] As attached Figure 1 As shown, the present invention provides a sliding power generation device based on wave energy and suitable for a cable-climbing ocean profiler. The overall structure of the sliding power generation device includes a buoy 1, a weight, a cable 2, a cable-climbing ocean profiler 3, a sliding power generation unit 4 and a mechanical clamping device 5; the buoy 1 is located on the sea surface, the lower part is connected to the cable 2, the end of the steel cable is connected to the weight, the cable-climbing ocean profiler 3, the sliding power generation unit 4 and the mechanical clamping device 5 are all penetrated by the cable 2; the sliding power generation unit 4 is fixed to the middle of the cable-climbing ocean profiler 3, and the mechanical clamping device 5 is fixed to the bottom of the cable-climbing ocean profiler 3.

[0021] The mechanical clamping device 5 is used to realize the periodic up and down movement of the self-generating ocean monitoring module relative to the cable, thereby driving the ocean profiler to realize the collection and detection of ocean longitudinal parameters. The mechanical clamping device 5 is a unidirectional motion module. The unidirectional motion module has a net displacement underwater during the two upward and downward movements of the waves. When the waves continue to vibrate, it can move toward the deep water along the steel cable and float to the sea surface after triggering the switch. This unidirectional motion module has been widely used in the industry, and the present invention does not limit its specific implementation form. For example, the Seahorse profiler of ODIM, the Wirewalker of Del Mar, or the unidirectional motion module reported in CN107643381A can all be used to implement the unidirectional motion module of the present invention.

[0022] The mechanical clamping device 5 has two states, namely a clamping state and a non-clamping state; when the mechanical clamping device 5 is in the clamping state, the mechanical clamping device 5 clamps the cable 2 (that is, the mechanical clamping device 5 and the cable 2 are in a bite state), at this time, the whole composed of the cable-climbing ocean profiler 3, the sliding power generation unit 4, and the mechanical clamping device 5 (for the convenience of description, hereinafter referred to as the self-powered ocean monitoring module) can move downward along the cable 2 in one direction (cannot move upward), and when the mechanical clamping device 5 is in the non-clamping state, the mechanical clamping device 5 releases the cable 2 (that is, the mechanical clamping device 5 is separated from the cable 2), and the self-powered ocean monitoring module can move along the cable 2 back to the top of the cable 2 under the action of buoyancy.

[0023] As attached Figure 2As shown, in a specific embodiment of the present invention, the sliding power generation unit 4 includes a shell, a control unit, a generator wheel 7, two guide wheels 6 and a generator 8; the generator wheel 7 and the two guide wheels 6 are arranged on the side walls on both sides of the shell relative to each other, and the cable 2 passes therethrough, and the guide wheels 6 and the generator wheel 7 squeeze the cable 2 in opposite directions to ensure that the cable 2 always maintains close contact with the generator wheel 7 and reduces the deviation and friction loss of the cable 2; the two guide wheels of the present invention are fixedly installed inside the shell and do not move relative to the solid, and are arranged vertically opposite to each other; the generator wheel is arranged on the shell through a generator wheel mounting seat, and the generator wheel mounting seat and the shell are elastically connected by a spring or a slide groove is arranged between the generator wheel mounting seat and the shell, and the generator wheel mounting seat can swing up and down relative to the shell within a set range, so that the generator wheel thereon can swing up and down between the two guide wheels, and this swing design can automatically enhance the grip of the generator wheel on the cable when the wave intensity increases, thereby increasing the friction to achieve stable energy transfer. The generator wheel 7 is connected to the input shaft of the generator 8. When the generator wheel 7 and the cable 2 move relative to each other, the generator wheel 7 can rotate, thereby driving the generator 8 to generate electricity; the control unit is used to monitor the intensity and frequency of the waves in real time, and dynamically adjust the power generation load of the generator.

[0024] The sliding power generation unit 4 of the present invention is the core part that converts the up and down movement of waves into electrical energy, and it adopts a three-wheel clamping structure. The generator 8 connected to the generator wheel 7 works to generate current, realizing the conversion of mechanical energy into electrical energy. The generated electrical energy is converted into stable direct current through the rectifier in the generator, and stored in the battery inside the cable-climbing ocean profiler 3, or directly powers the sensors and control system in the cable-climbing ocean profiler 3.

[0025] Specifically, the whole composed of the buoy, cable and weight will move with the waves. When the rising edge of the wave arrives, the water surface rises, and the buoy will drive the cable and the weight to move upward. At this time, the cable-climbing ocean profiler 3, the sliding power generation unit 4, and the mechanical clamping device 5 will move downward relative to the cable under the action of inertia. In this process, the power generation wheel of the sliding power generation unit 4 moves downward relative to the cable and rotates, thereby driving the generator to generate electricity. When the falling edge of the wave arrives, the water surface drops, and the weight drives the cable to move downward. Due to the unidirectional movement characteristics of the mechanical clamping device, the self-generating ocean monitoring module composed of the cable-climbing ocean profiler 3, the sliding power generation unit 4, and the mechanical clamping device 5 will move with the cable without displacement relative to the cable.

[0026] The mechanical clamping device 5 is provided with a travel switch for triggering a state change. When the self-generating ocean monitoring module reaches the lower end of the cable, the travel switch of the mechanical clamping device 5 will be triggered (the triggering form may be that the travel switch touches a heavy object or any other limiting block that is convenient for fixing at the bottom of the cable), and the mechanical clamping device 5 enters a non-clamping state. The self-generating ocean monitoring module moves upward in one direction along the cable 2 under the action of its own buoyancy; during the ascent, the generator wheel of the sliding power generation unit 4 will rotate under the friction of the cable, and then drive the generator to work and generate electricity; when the self-generating ocean monitoring module reaches the upper end of the cable, the travel switch of the mechanical clamping device 5 will be triggered (the triggering form may be that the travel switch touches a buoy or any other limiting block that is convenient for fixing at the top of the cable), and after the triggering, the mechanical clamping device 5 switches to the clamping state again, thereby realizing that the self-generating ocean monitoring module moves up and down periodically along the cable with the action of waves.

[0027] As attached Figure 3 As shown, in order to ensure the coordinated work of the power generation part and the sliding part in the sliding power generation unit 4, the present invention designs a set of intelligent control units for real-time adjustment of the load during the power generation process and optimization of energy management. The control unit achieves efficient use of energy in the following ways:

[0028] (1) Detection and adjustment of wave intensity: The control unit is equipped with a wave intensity detection sensor, which is a commonly used sensor in ocean monitoring and can capture key parameters such as wave height, period, and wavelength. The present invention uses it to monitor the frequency and amplitude of ocean waves in real time. When a large wave intensity is detected, the control unit will increase the load of the generator to improve power generation efficiency; when the wave is weak, the control unit will reduce the power generation load to ensure that the sliding movement of the profiler is not affected by excessive resistance.

[0029] (2) Load regulation and energy management: The control unit can automatically adjust the generator's power generation load according to the real-time power generation and equipment power requirements. At the same time, the control unit can monitor the power requirements of the profiler, manage the output and storage of power, and ensure that the cable-climbing ocean profiler 3 can continue to work when the wave intensity is unstable. For example, when the sensor power demand of the cable-climbing ocean profiler 3 increases, the sliding power generation device will give priority to powering the sensor, and when the power demand decreases, the sliding power generation device will store excess power in the battery.

[0030] (3) System protection and fault handling: The control unit also has self-protection and fault handling functions. Since sliding friction (not complete rolling friction) may occur between the cable and the generator wheel, if the generator load is too heavy, the sliding friction between the cable and the generator wheel will be very obvious, resulting in damage to the cable or the generator wheel. Therefore, when the cable-climbing ocean profiler 3 slides abnormally due to strong waves or mechanical failure, the control unit will automatically reduce the power generation load or stop power generation to prevent the sliding power generation unit 4 from being damaged due to excessive wear or excessive friction. At the same time, the control unit can monitor the charging status of the battery to prevent overcharging or over-discharging.

[0031] Attached Figure 4 The process of power generation load regulation based on wave intensity and frequency is described. The control unit includes a wave intensity detection sensor, a fuzzy control unit and a wave intensity prediction unit. The fuzzy control unit divides the wave intensity and frequency detected by the wave intensity detection sensor into several levels, and selects the corresponding electrical equipment or battery to connect to the generator power supply circuit according to the preset rule table; the electrical equipment not connected to the generator power supply circuit is powered by the battery. For example, the wave intensity is divided into three levels of "weak, medium and strong", and the frequency is divided into three levels of "low, medium and high", and a rule table is formulated to specify the electrical equipment connected to the generator power supply circuit under the wave intensity and frequency of the set level.

[0032] The wave intensity prediction unit is used to predict the intensity and frequency of future waves based on historical wave data (wave data of different seasons or months in the sea area, wave data of different time points on the same day), and calculate the predicted generator power generation. The prediction algorithm can simply take the average value of the historical wave data of the same time as the prediction value for the next prediction time, or it can use an intelligent algorithm to predict the wave data at the next moment based on historical data. The present invention does not limit the prediction method. When the wave intensity prediction unit predicts that the future wave intensity and frequency exceed the intensity and frequency set in the rule table, the control unit uses the wave intensity prediction unit to control the power load; the control unit obtains the generator power generation based on the predicted or detected wave intensity, and increases or decreases the power generation load according to the power requirements of each electrical equipment in the self-generating ocean monitoring module;

[0033] Among them, increasing the power generation load is: according to the order of power demand from low to high, each power-consuming device is directly connected to the power supply circuit of the generator until the total power demand of the connected power-consuming devices matches the power generation power. The battery is the lowest priority and is connected to store excess power when there is excess power generation;

[0034] To reduce the power generation load, first disconnect the battery from the generator power supply circuit, and then disconnect each electrical device from the generator power supply circuit in order of power demand from high to low until the total power demand of the connected electrical devices matches the generated power; the disconnected electrical devices are powered by the battery instead.

[0035] For electrical equipment that requires long-term stable power supply, it is always powered by batteries.

[0036] Attached Figure 5 The protection flow chart of the sliding power generation device is described. The sliding power generation device uses waves to drive the cable movement, and drives the input shaft of the generator through the generator wheel, and the generator generates alternating current. The generator has a high-frequency rectifier module and a voltage regulator module. The generated electric energy first enters the high-frequency rectifier module of the generator, and the high-frequency rectifier module converts the alternating current into direct current. The voltage regulator module adjusts the output voltage according to the control unit, the sensors of the profiler and the battery requirements to ensure that the electric energy is adapted to the power supply end. The control unit monitors the state of charge (SOC), state of health (SOH), voltage, current and temperature of the battery in real time through the sensor network, and selects the battery charging mode in combination with the power requirements of the equipment: the constant current charging mode (CC) is used in the low SOC stage of the battery to quickly replenish the power; when it is close to full charge, it switches to the constant voltage charging mode (CV) to reduce the current and avoid overcharging; when the wave intensity changes drastically, pulse charging (Pulse Charging) is used to improve the charging efficiency and reduce heat accumulation. The generator first powers the sensor, and the remaining electric energy is stored in the battery. When the battery voltage is detected to be over the limit, the sliding power generation device automatically reduces or stops charging; when the voltage is lower than the set threshold, the power supply to non-critical loads is suspended to protect the battery life. Abnormal conditions (such as excessive temperature, abnormal current) trigger the protection mechanism, output alarm signals and record fault information to ensure the stable operation of the sliding power generation device.

[0037] The control unit dynamically adjusts the power generation load by monitoring the intensity and frequency of waves in real time to ensure that the sliding power generation device can operate efficiently under various wave conditions.

[0038] The above-mentioned embodiments only express several implementation modes of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. For those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A cable-climbing ocean profiler sliding power generation device based on wave energy, comprising a buoy, a cable and a weight connected in sequence, characterized in that: The cable is provided with a self-powered ocean monitoring module consisting of a cable-climbing ocean profiler, a mechanical clamping device and a sliding power generation unit fixedly connected; The cable-climbing ocean profiler is used to monitor ocean parameters and is equipped with a battery for power supply; The mechanical clamping device is used to realize the periodic up and down movement of the self-powered ocean monitoring module relative to the cable, wherein the mechanical clamping device clamps the cable and drives the self-powered ocean monitoring module to move downward along the cable in one direction under the action of waves, and when reaching the bottom of the cable, the cable is released so that the self-powered ocean monitoring module returns to the top of the cable by buoyancy and clamps the cable again; The sliding power generation unit includes a generator, a control unit, a generator wheel and two guide wheels; the generator wheel and the guide wheels are arranged on both sides of the cable opposite to each other, and the guide wheels and the generator wheel squeeze the cable oppositely to ensure that the cable always keeps close contact with the generator wheel; the generator wheel is connected to the input shaft of the generator; the control unit dynamically adjusts the power generation load of the generator according to the intensity and frequency of the waves monitored in real time; when the generator wheel slides up and down relative to the cable, the generator wheel rotates to drive the generator to generate electricity; the control unit controls the electric energy to be stored in the battery, or directly used to power various electrical equipment in the self-generating ocean monitoring module; The control unit includes a wave intensity detection sensor and a fuzzy control unit. The fuzzy control unit divides the wave intensity and frequency detected by the wave intensity detection sensor into several levels, and selects corresponding electrical equipment or batteries to be connected to the generator power supply circuit according to a preset rule table; electrical equipment not connected to the generator power supply circuit is powered by the battery; The control unit also includes a wave intensity prediction unit, which is used to predict the intensity and frequency of future waves based on historical wave data and calculate the predicted generator power. When the wave intensity prediction unit predicts that the future wave intensity and frequency exceed the intensity and frequency set in the rule table, the control unit uses the wave intensity prediction unit to control the power load. The control unit obtains the generator power based on the predicted or detected wave intensity, and increases or decreases the power generation load based on the power requirements of each electrical device in the self-generating ocean monitoring module. Among them, increasing the power generation load is: according to the order of power demand from low to high, each power-consuming device is directly connected to the power supply circuit of the generator until the total power demand of the connected power-consuming devices matches the power generation power. The battery is the lowest priority and is connected to store excess power when there is excess power generation; To reduce the power generation load, first disconnect the battery from the generator power supply circuit, and then disconnect each electrical device from the generator power supply circuit in order of power demand from high to low until the total power demand of the connected electrical devices matches the generated power; the disconnected electrical devices are powered by the battery instead.

2. The cable-climbing ocean profiler sliding power generation device based on wave energy according to claim 1 is characterized in that: The mechanical clamping device is fixed inside the cable-climbing ocean profiler and is penetrated by the cable. The mechanical clamping device is a unidirectional moving module, on which a travel switch is arranged. When the travel switch is triggered, the mechanical clamping device switches the clamping or releasing state of the cable. When the mechanical clamping device clamps the cable, the cable-climbing ocean profiler can only move downward in one direction relative to the cable under the action of waves, and can rely on buoyancy to return to the top of the cable when the cable is released.

3. The cable-climbing ocean profiler sliding power generation device based on wave energy according to claim 1 is characterized in that: The sliding power generation unit includes a shell, and two guide wheels are fixedly installed inside the shell and arranged vertically opposite to each other; the generator wheel is set on the shell through a generator wheel mounting seat, and the generator wheel mounting seat and the shell are elastically connected or slidingly connected. The generator wheel mounting seat can swing up and down within a set range relative to the shell, so that the generator wheel thereon can swing up and down between the two guide wheels. With the mutual cooperation of the generator wheel and the two guide wheels, the cable-climbing ocean profiler can slide smoothly along the cable under the push of waves.

4. The cable-climbing ocean profiler sliding power generation device based on wave energy according to claim 2 is characterized in that: The generator wheel is driven by the friction between the generator wheel and the cable, which in turn drives the rotor of the generator to rotate, realizing the conversion of mechanical energy into electrical energy; the output power of the generator is 1-10W.

5. The cable-climbing ocean profiler sliding power generation device based on wave energy according to claim 1 is characterized in that: For electrical equipment that requires long-term stable power supply, it is always powered by batteries.

6. The cable-climbing ocean profiler sliding power generation device based on wave energy according to claim 1 is characterized in that: The control unit also has a self-protection and fault handling unit; when the self-generating ocean monitoring module slides abnormally due to strong waves, the control unit will automatically reduce the generator's power generation load or stop generating electricity to prevent the sliding power generation unit from being damaged due to excessive wear or excessive friction; and the control unit can monitor the charging status of the battery to prevent the battery from being overcharged or over-discharged.

7. The cable-climbing ocean profiler sliding power generation device based on wave energy according to claim 1 is characterized in that: The generator has a high-frequency rectifier module and a voltage stabilizing module. The generated electric energy first enters the high-frequency rectifier module of the generator, and the high-frequency rectifier module converts the alternating current into direct current; the voltage stabilizing module outputs voltage to ensure that the electric energy is adapted to the power supply end; When the generator has excess power, the control unit selects the battery charging mode based on the real-time monitored battery state of charge SOC, health state SOH, voltage, current and temperature: constant current charging mode CC is used in the low battery state of charge SOC stage to quickly replenish the power; when the battery is close to full charge, it switches to constant voltage charging mode CV to reduce the current and avoid overcharging; pulse charging is used when the wave intensity changes drastically to improve charging efficiency and reduce heat accumulation; when the battery voltage is detected to be over the limit, the sliding generator automatically reduces or stops charging; when the battery voltage is lower than the set threshold, the power supply to non-critical electrical equipment is suspended to protect the battery life.

Citation Information

Patent Citations

  • Automatic profile observing apparatus driven by ocean wave energy

    CN107643381A

  • Submerged buoy applied to marine observation

    CN107179071A

  • Inverted hanging type wave energy generation device and optimal capturing method thereof

    CN107882676A

  • Battery management system with serial port communication detection module

    CN108001265A

  • Cable climbing device driven by wave energy

    CN213576487U