A floating wind measurement lidar at sea

Abstract

The present invention discloses an offshore floating wind measurement laser radar. A spherical outer shell is provided to allow the offshore floating wind measurement laser radar to float on the sea surface and to sway with the waves on the sea surface, so that the directional direction of the light emitted by the Doppler coherent wind measurement system can change with the swaying of the offshore floating wind measurement laser radar. After the specific directional direction of the light emitted by the Doppler coherent wind measurement system is determined by an attitude and direction finding device, the corresponding wind speed data is obtained when the directional direction reaches a preset direction, thereby realizing the measurement of the wind speed data. The swaying of the offshore floating wind measurement laser radar caused by the waves on the sea surface can realize the adjustment of the directional direction of the light emitted by the Doppler coherent wind measurement system, and the natural swaying of floating objects on the sea is used to replace the active scanning of the coherent Doppler wind measurement radar, thereby eliminating the scanning system of the previous coherent wind measurement laser radar, so that the core part has no mechanical moving parts, reducing power consumption while improving system stability.

Description

Technical Field

[0001] The present invention relates to the technical field of wind measurement laser radars, and in particular to an offshore floating wind measurement laser radar. Background Art

[0002] Coherent Doppler wind lidar is a device system that uses laser remote sensing to measure atmospheric wind fields. It is currently widely used in wind farm pre-production surveys, meteorology, and environmental protection industries. Compared to traditional wind towers and wind cups and vanes, it offers advantages such as smaller size, reduced construction effort, longer measurement distances, superior accuracy and consistency, and robustness to extreme weather conditions such as freezing rain and high winds.

[0003] These advantages are even more pronounced in offshore applications. Because building wind towers at sea is extremely expensive and highly dependent on the water depth and seabed geology at the measurement point, floating wind lidar systems have emerged, integrating wind lidars onto large buoy systems. These systems utilize the large buoy system's solar self-powered system as their energy source, employ a combined positioning and navigation system to calculate the lidar's heading and attitude data in real time, and correct the radar's beam pointing deviation in real time. Correction algorithms then output real-time wind data. However, due to their high power consumption and solar-powered operation, these systems require a relatively large buoy platform. This results in high costs. Furthermore, the production, deployment, recovery, and maintenance of large buoys are both expensive and time-consuming, making them difficult to mass-produce and commercialize, and they remain a customized development process.

[0004] Current coherent Doppler wind lidars installed on large buoys require significant energy and a large number of solar panels. Furthermore, the superstructure is relatively fragmented, consisting of numerous solar panels and supports, and is tall. To ensure the survivability of the buoy during typhoons and severe sea conditions, additional counterweights or a more robust structure are necessary, resulting in a larger overall weight and volume. This also complicates assembly and commissioning of these systems. In some designs, oversized components cannot even be transported by road. Final assembly and commissioning must be performed on the coast near the measurement location, preventing the factory from directly shipping fully tested systems, which poses quality risks. Furthermore, due to the coherent wind measurement principle, current systems inevitably incorporate mechanical or micromechanical scanning mechanisms, which are subject to risks such as wear, seizure, and aging. Offshore projects require extremely high system stability, as any problems are extremely difficult to troubleshoot and repair. The large size of the system further complicates maintenance, as towing the entire system back to shore for repair is costly, and any problems may necessitate repair work at sea, further increasing the risk. Therefore, how to provide a small offshore floating wind measurement lidar with a simple structure is an urgent problem that technicians in this field need to solve. Summary of the Invention

[0005] The purpose of the present invention is to provide an offshore floating wind measurement laser radar with a small size and a simple structure.

[0006] In order to solve the above technical problems, the present invention provides an offshore floating wind measurement laser radar, comprising a quasi-spherical outer shell, an energy system, a Doppler coherent wind measurement system and a control system;

[0007] The energy system is used to supply energy to the Doppler coherent wind measurement system and the control system; the Doppler coherent wind measurement system and the control system are located in the quasi-spherical outer shell, and the control system is communicatively connected to the Doppler coherent wind measurement system; the quasi-spherical outer shell is provided with a light port, and the Doppler coherent wind measurement system transmits a laser signal through the light port and receives an echo signal corresponding to the laser signal;

[0008] The control system includes an attitude and direction measuring device and a processor, wherein the processor is configured to:

[0009] Determining the directional direction of the light emitted by the Doppler coherent wind measurement system by the attitude and direction finding device;

[0010] When the pointing direction reaches a preset direction, wind speed data corresponding to the preset direction is acquired through the Doppler coherent wind measurement system.

[0011] Optionally, the processor is further configured to:

[0012] When the wind speed data corresponding to the preset direction reaches a preset number, the wind measurement data corresponding to the preset direction is calculated based on the wind speed data.

[0013] Optionally, the control system further includes a communication device, and the processor is further configured to:

[0014] The data generated by the offshore floating wind measurement lidar is sent to the main station through the communication device.

[0015] Optionally, the spherical outer shell is provided with a counterweight, and the counterweight is arranged opposite to the light opening.

[0016] Optionally, the spherical outer shell is provided with a ventilation pipe connecting the inner space of the spherical outer shell with the external space.

[0017] Optionally, the ventilation pipe is connected to a water collecting chamber.

[0018] Optionally, the energy system includes a storage battery located inside the spherical outer shell and a solar panel located on the periphery of the spherical outer shell, and the solar panel is electrically connected to the storage battery.

[0019] Optionally, the solar cell panel is a special-shaped solar cell panel that fits the outer peripheral surface of the spherical outer shell.

[0020] Optionally, the energy system includes a fuel tank.

[0021] Optionally, the maximum diameter of the spherical outer shell ranges from 1 m to 3 m, including endpoint values.

[0022] The present invention provides an offshore floating wind measurement laser radar, comprising a quasi-spherical outer shell, an energy system, a Doppler coherent wind measurement system, and a control system; the energy system is used to supply energy to the Doppler coherent wind measurement system and the control system; the Doppler coherent wind measurement system and the control system are located in the quasi-spherical outer shell, and the control system is communicatively connected to the Doppler coherent wind measurement system; the quasi-spherical outer shell is provided with a light port, through which the Doppler coherent wind measurement system emits a laser signal and receives an echo signal corresponding to the laser signal; the control system comprises an attitude and direction finding device and a processor, the processor being used to: determine the directional azimuth of light emitted by the Doppler coherent wind measurement system through the attitude and direction finding device; and when the directional azimuth reaches a preset azimuth, obtain wind speed data corresponding to the preset azimuth through the Doppler coherent wind measurement system.

[0023] The spherical outer shell allows the floating offshore wind laser radar to float on the sea surface and sway with the waves on the sea surface, so that the directional direction of the Doppler coherent wind measurement system's light can change with the swaying of the floating offshore wind laser radar. After the attitude and direction-finding device determines the specific directional direction of the Doppler coherent wind measurement system's light, the corresponding wind speed data is obtained when the directional direction reaches the preset direction, thereby achieving the measurement of the wind speed data. The swaying of the floating offshore wind laser radar caused by the waves on the sea surface allows the directional direction of the Doppler coherent wind measurement system to be adjusted. The natural swaying of floating objects on the sea replaces the active scanning of the coherent Doppler wind radar, eliminating the scanning system of the previous coherent wind laser radar. This eliminates any mechanical moving parts in the core part, reducing power consumption while improving system stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic structural diagram of an offshore floating wind measurement lidar provided by an embodiment of the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure;

[0027] Figure 3 This is a structural block diagram of a specific offshore floating wind measurement lidar provided by an embodiment of the present invention.

[0028] In the figure: 1. Spherical outer shell, 11. Light port, 12. Counterweight, 13. Ventilation duct, 2. Energy system, 21. Solar panel, 22. Battery, 3. Doppler coherence wind measurement system, 31. Collimating beam expander, 4. Control system, 41. Attitude and direction finding device, 42. Communication device. DETAILED DESCRIPTION

[0029] The core of this invention is to provide a floating offshore wind lidar. In the prior art, floating wind lidar systems mount the lidar on a large buoy system, using the buoy's solar self-powered system as energy. A combined positioning and navigation system calculates the lidar's heading and attitude data in real time, corrects the radar's beam pointing deviation in real time, and outputs real-time wind data using a correction algorithm. However, current coherent Doppler wind lidars installed on large buoys require a significant amount of energy, requiring a large number of solar panels. Furthermore, the superstructure is relatively fragmented, consisting of numerous solar panels, brackets, and other components, and is relatively high. To ensure the survivability of the floating structure during typhoons and severe sea conditions, additional counterweights or a more robust structure are necessary, resulting in a larger overall weight and volume. This also complicates assembly and commissioning of such systems. In some solutions, oversized components cannot even be transported by road, and final assembly and commissioning must be performed on the coast near the measurement location. This prevents the factory from directly shipping a fully tested system, posing a quality risk. Furthermore, due to the coherent wind measurement principle, current systems inevitably have mechanical or micromechanical scanning mechanisms, which are subject to risks such as wear, seizure, and aging. Offshore projects require extremely high system stability, as any problems are extremely difficult to troubleshoot and repair. Excessively large systems further complicate repairs, as towing the entire system to shore is expensive, and any problems may necessitate repairs at sea, further increasing the risk of unmanageable risks.

[0030] The present invention provides a floating offshore wind-measuring laser radar with a spherical outer shell, which allows the floating offshore wind-measuring laser radar to float on the sea surface and sway with the waves on the sea surface, so that the directional direction of the light emitted by the Doppler coherent wind measurement system can change with the swaying of the floating offshore wind-measuring laser radar. After the specific directional direction of the light emitted by the Doppler coherent wind measurement system is determined by the attitude and direction-finding device, the corresponding wind speed data is obtained when the directional direction reaches the preset direction, and the wind speed data can be measured. The swaying of the floating offshore wind-measuring laser radar caused by the waves on the sea surface can adjust the directional direction of the light emitted by the Doppler coherent wind measurement system, and the natural swaying of floating objects on the sea is used to replace the active scanning of the coherent Doppler wind measurement radar, thereby eliminating the scanning system of the previous coherent wind measurement laser radar, so that the core part has no mechanical moving parts, reducing power consumption while improving system stability.

[0031] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0032] Please refer to Figure 1 as well as Figure 2 , Figure 1 A schematic structural diagram of an offshore floating wind measurement lidar provided by an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure.

[0033] See also Figure 1 as well as Figure 2 In an embodiment of the present invention, an offshore floating wind measurement lidar includes a quasi-spherical outer shell 1, an energy system 2, a Doppler coherent wind measurement system 3 and a control system 4; the energy system 2 is used to supply energy to the Doppler coherent wind measurement system 3 and the control system 4; the Doppler coherent wind measurement system 3 and the control system 4 are located within the quasi-spherical outer shell 1, and the control system 4 is communicatively connected to the Doppler coherent wind measurement system 3; the quasi-spherical outer shell 1 is provided with a light port 11, and the Doppler coherent wind measurement system 3 transmits a laser signal through the light port 11 and receives an echo signal corresponding to the laser signal.

[0034] The control system 4 includes an attitude and direction measuring device 41 and a processor, and the processor is used to: determine the directional direction of the light emitted by the Doppler coherent wind measurement system 3 through the attitude and direction measuring device 41; when the directional direction reaches a preset direction, obtain wind speed data corresponding to the preset direction through the Doppler coherent wind measurement system 3.

[0035] The quasi-spherical outer shell 1 is a generally spherical outer shell. In the embodiment of the present invention, most of the main working components of the offshore floating wind measurement laser radar are arranged inside the quasi-spherical outer shell 1, and the quasi-spherical outer shell 1 can enable the offshore floating wind measurement laser radar to float on the sea surface. Specifically, the quasi-spherical outer shell 1 needs to be provided with a Doppler coherent wind measurement system 3 and a control system 4, as well as most of the components of the energy system 2. The quasi-spherical outer shell 1 needs to be provided with a light port 11 so that the laser emitted by the Doppler coherent wind measurement system 3 can be transmitted through the light port 11 to the outside atmosphere for wind measurement. That is, the Doppler coherent wind measurement system 3 can transmit a laser signal through the light port 11 and receive an echo signal corresponding to the laser signal. In the normal floating state, the light port 11 needs to point in the direction of the atmosphere. The quasi-spherical outer shell 1 is usually a split upper and lower outer shell to facilitate the installation of other components inside the quasi-spherical outer shell 1.

[0036] The energy system 2 is used to supply energy to the Doppler coherent wind measurement system 3 and the control system 4. The control system 4 needs to be in communication with the Doppler coherent wind measurement system 3 to control the timing of laser emission by the Doppler coherent wind measurement system 3 and process the received signals. The specific structures of the energy system 2, the Doppler coherent wind measurement system 3, and the control system 4 will be described in detail in the following embodiments of the invention and will not be repeated here.

[0037] In an embodiment of the present invention, the control system 4 includes an attitude and direction finding device 41 and a processor. The attitude and direction finding device 41 is usually required to be a high-precision attitude and direction finding device 41. The attitude and direction finding device 41 can monitor the attitude and direction of the entire offshore floating wind laser radar. The attitude and direction finding device 41 is usually required to detect the attitude and direction of the entire offshore floating wind laser radar in real time, so that the direction of the light emitted by the Doppler coherent wind measurement system 3 can be solved in real time.

[0038] Specifically, in an embodiment of the present invention, the processor is used to: determine the directional direction of the light emitted by the Doppler coherent wind measurement system 3 through the attitude and direction measurement device 41; when the directional direction reaches a preset direction, obtain the wind speed data corresponding to the preset direction through the Doppler coherent wind measurement system 3.

[0039] The above-mentioned attitude and direction-finding device 41 can usually measure the attitude and direction of the offshore floating wind laser radar, such as the pitch angle, rotation angle and other relevant attitude and direction parameters, and the processor can calculate the attitude and direction of the offshore floating wind laser radar in real time based on the parameters generated by the attitude and direction-finding device 41, thereby calculating the azimuth of the light emitted by the Doppler coherent wind measurement system 3. Among them, the process of calculating the attitude and direction of the offshore floating wind laser radar based on the parameters generated by the attitude and direction-finding device 41 can refer to the existing technology, and the calculation of the azimuth of the light emitted by the Doppler coherent wind measurement system 3 based on the attitude and direction of the offshore floating wind laser radar needs to be calculated according to the specific structure and size of the offshore floating wind laser radar, and needs to be set according to the actual situation, and is not specifically limited here.

[0040] In an embodiment of the present invention, when the pointing direction reaches a preset direction, the processor will obtain the wind speed data corresponding to the preset direction through the Doppler coherent wind measurement system 3. That is, as the offshore floating wind measurement laser radar shakes due to sea waves, the pointing direction of the light emitted by the Doppler coherent wind measurement system 3 will change accordingly. When the pointing direction reaches the preset direction, the processor will emit laser light through the Doppler coherent wind measurement system 3 and receive the corresponding echo signal, thereby obtaining the wind speed data corresponding to the preset direction. The specific process of calling the Doppler coherent wind measurement system 3 to measure wind speed data, as well as the specific content included in the wind speed data, can be referred to the existing technology and will not be repeated here. Under normal circumstances, the processor also needs to record the information of the pointing direction corresponding to the wind speed data to facilitate subsequent calculations. The above-mentioned preset direction can be one or more, and usually multiple preset directions are set at the same time to improve the calculation efficiency of the wind speed data. Specifically, the above-mentioned wind speed data is usually radial wind speed data.

[0041] Furthermore, in an embodiment of the present invention, the processor is further configured to: when the wind speed data corresponding to the preset direction reaches a preset number, calculate the wind measurement data corresponding to the preset direction based on the wind speed data.

[0042] That is, when the wind speed data corresponding to the same preset direction reaches a preset number, the wind measurement data corresponding to the preset direction can be calculated based on the wind speed data corresponding to the same preset direction. The specific process of calculating the wind measurement data based on the wind speed data can be referred to the existing technology and will not be repeated here.

[0043] Specifically, in this embodiment of the present invention, the control system 4 may include other sensors, such as temperature, humidity, and pressure sensors, wave sensors, and temperature, salinity, and depth sensors. These sensors can be used to detect the status of the offshore floating wind lidar itself, as well as the status of the environment surrounding the offshore floating wind lidar. The specific types of sensors can be set based on actual circumstances and are not specifically limited here.

[0044] In an embodiment of the present invention, the control system 4 may further include a communication device 42 , and the processor is further configured to send the data generated by the offshore floating wind laser radar to a main station via the communication device 42 .

[0045] The communication device 42 can be a satellite communication device or other communication device. In this case, the processor can transmit the data generated by the offshore floating wind laser radar, including the wind speed data, azimuth, wind measurement data, and detection data generated by various sensors, to a main station of the communication device 42, such as a shore station detection terminal, thereby monitoring the status of the offshore floating wind laser radar in real time. Specifically, when the processor only calculates wind speed data and does not further calculate wind measurement data, the wind speed data and corresponding azimuth can be sent to the main station for calculation. This depends on the specific situation and is not specifically limited here.

[0046] The embodiment of the present invention provides a floating offshore wind laser radar. The spherical outer shell can make the floating offshore wind laser radar float on the sea surface and sway with the waves on the sea surface, so that the directional direction of the light emitted by the Doppler coherent wind measurement system 3 can change with the swaying of the floating offshore wind laser radar. After the attitude and direction finding device 41 determines the specific directional direction of the light emitted by the Doppler coherent wind measurement system 3, the corresponding wind speed data is obtained when the directional direction reaches the preset direction, and the wind speed data can be measured. The swaying of the floating offshore wind laser radar caused by the waves on the sea surface can adjust the directional direction of the light emitted by the Doppler coherent wind measurement system 3. The natural swaying of floating objects on the sea is used to replace the active scanning of the coherent Doppler wind radar, and the scanning system of the previous coherent wind laser radar is eliminated, so that the core part has no mechanical moving parts, which reduces power consumption and improves system stability.

[0047] The specific contents of the offshore floating wind measurement laser radar provided by the present invention will be introduced in detail in the following invention embodiments.

[0048] Please refer to Figure 3 , Figure 3 This is a structural block diagram of a specific offshore floating wind measurement lidar provided by an embodiment of the present invention.

[0049] Different from the above-mentioned invention embodiment, the present invention embodiment further defines the structure of the offshore floating wind laser radar based on the above-mentioned invention embodiment. The remaining contents have been described in detail in the above-mentioned invention embodiment and will not be repeated here.

[0050] See also Figures 1 to 3 In an embodiment of the present invention, the Doppler coherent wind measurement system 3 includes a collimating beam expander 31, a circulator, an all-fiber polarization-maintaining laser, a 2×2 fiber coupler, a balanced detector, and a high-speed acquisition card. The collimating beam expander 31 must be aligned with the light port 11 provided in the spherical outer shell 1, so that the laser light emitted from the collimating beam expander 31 can be emitted into the atmosphere through the light port 11. A circulator is a multi-port non-reciprocal optical device with a typical structure having at least three ports. It can separate the transmitting and receiving optical paths with almost no energy loss. The circulator typically has three ends: one end connected to the collimating beam expander 31, one end connected to the all-fiber polarization-maintaining laser, and one end connected to the 2×2 fiber coupler. In addition to being connected to the circulator, the all-fiber polarization-maintaining laser also needs to be connected to the 2×2 fiber coupler to provide a reference laser. Compared to traditional lasers, fiber polarization-maintaining lasers have excellent heat dissipation efficiency due to their extremely large fiber surface area ratio, and can be air-cooled. It is made of flexible material, insensitive to vibration and shock, and easy to package.

[0051] The aforementioned 2×2 fiber coupler is used to mix the reference laser light with the echo signal. The resulting optical signal includes the frequency shift characteristic of atmospheric winds. The output of the 2×2 fiber coupler needs to be connected to a balanced detector. Because the frequency shift characteristic is high-frequency, the balanced detector can subtract the DC components of the two beams to obtain differential information, which can then be amplified and processed by subsequent circuits to obtain pure frequency shift information. Therefore, a balanced detector converts an optical signal with both frequency and DC components into an electrical signal, while minimizing the DC component and retaining the frequency shift component.

[0052] The output end of the balanced detector needs to be connected to a high-speed acquisition card. The data generated by the entire Doppler coherent wind measurement system 3 will be stored in the high-speed acquisition card, and the control system 4 usually obtains the data generated by the Doppler coherent wind measurement system 3 through the high-speed acquisition card.

[0053] In an embodiment of the present invention, the quasi-spherical outer shell 1 is provided with a counterweight 12, and the counterweight 12 is arranged opposite to the light opening 11. The counterweight 12 can ensure the relative stability of the offshore floating wind measurement laser radar when it swings with the waves. The counterweight 12 needs to be arranged opposite to the light opening 11, that is, the counterweight 12 needs to be located on both sides of the quasi-spherical outer shell 1 respectively to ensure that the light opening 11 can point to the atmosphere. The counterweight 12 needs to ensure the waterline of the offshore floating wind measurement laser radar and adjust the stability of the standard. Reasonable design can make the offshore floating wind measurement laser radar swing in a suitable posture in most sea conditions. The symmetrical design and counterweight 12 make the longitudinal and transverse roll probabilities of the offshore floating wind measurement laser radar consistent to meet the needs of the wind measurement system.

[0054] In the embodiment of the present invention, the energy system 2 includes a battery 22 located in the spherical outer shell 1 and a solar panel 21 located on the periphery of the spherical outer shell 1 . The solar panel 21 is electrically connected to the battery 22 .

[0055] That is, in the embodiment of the present invention, a solar energy system is specifically selected to power the offshore floating wind measurement lidar, wherein the solar cell panel 21 needs to be arranged on the outer periphery of the spherical outer shell 1, and a battery 22 needs to be arranged inside the spherical outer shell 1, and the solar cell panel 21 needs to be electrically connected to the battery 22.

[0056] Preferably, the solar panel 21 is a specially shaped solar panel 21 that fits the outer periphery of the spherical outer shell 1. Specifically, the solar panel 21 needs to fit the outer periphery of the spherical outer shell 1 to reduce the risk of damage to the solar panel 21. Accordingly, the solar panel 21 needs to be a specially shaped solar panel 21.

[0057] Furthermore, in an embodiment of the present invention, the energy system 2 includes a fuel tank. The fuel tank needs to store fuel. That is, the above-mentioned offshore floating wind laser radar can specifically have two energy supply systems: fuel and solar cells. When the sea weather is good, it can be powered by solar cells, and when the weather is bad, it can be powered by fuel, thereby forming an oil-electric hybrid energy supply system. Generally, the spherical outer shell 1 also needs to be provided with a component that can convert fuel into electrical energy, such as a fuel cell, so that the offshore floating wind laser radar can be powered by fuel.

[0058] Specifically, in an embodiment of the present invention, the quasi-spherical outer shell 1 is provided with a ventilation duct 13 connecting the interior space of the quasi-spherical outer shell 1 with the exterior space. The above-mentioned floating offshore wind measurement lidar can be cooled not only by seawater but also by air. Specifically, the end of the ventilation duct 13 extending out of the quasi-spherical outer shell 1 needs to have a bend toward the quasi-spherical outer shell 1 to reduce the ingress of seawater into the quasi-spherical outer shell 1. The ventilation duct 13 can be provided with multiple levels of water-blocking baffles to further prevent water from entering the quasi-spherical outer shell 1.

[0059] Typically, the ventilation duct 13 is primarily used to supply air to the fuel cell. However, it can also be used to disperse air to other components or structures. Its specific structure and function can be customized based on actual circumstances and are not specifically defined herein. The ventilation duct 13 may be a double-layered concentric structure, with the center opening serving as the exhaust port and the peripheral openings serving as the intake ports. Air intake is controlled by a fan system within the valve train within the spherical outer shell 1.

[0060] In an embodiment of the present invention, the ventilation pipe 13 is connected to a water collecting chamber. In severe conditions, the water collecting chamber can collect the sucked-in small water droplets, and periodically discharge the accumulated water out of the offshore floating wind measurement lidar under the control of the water immersion sensor, water pump and solenoid valve, to ensure that fresh air is continuously supplied to the fuel cell for redox reaction.

[0061] Specifically, in an embodiment of the present invention, the maximum diameter of the quasi-spherical outer shell 1 ranges from 1m to 3m, inclusive. That is, the various components of the aforementioned floating offshore wind lidar are typically integrated within a quasi-spherical outer shell 1 with a maximum diameter ranging from 1m to 3m, inclusive. When the diameter of the quasi-spherical outer shell 1 exceeds 3m, it is not convenient for road transportation, as road transportation generally has limitations depending on the width of the object. However, maintaining a maximum diameter of the quasi-spherical outer shell 1 of no more than 3m facilitates road transportation, ensuring that it can be installed directly at the factory, rather than having to be transported to the seashore and then installed.

[0062] The maximum diameter of the spherical outer shell 1 is typically no less than 1 meter to ensure that the various components described above, such as the energy system 2, the Doppler coherent wind measurement system 3, the control system 4, etc. Preferably, in the embodiment of the present invention, the maximum diameter of the spherical outer shell 1 is typically 1.5 meters, which is convenient for transportation and has sufficient space to accommodate various components.

[0063] An embodiment of the present invention provides an offshore floating wind measurement lidar, which organically combines a portion of a coherent Doppler wind measurement radar with an offshore buoy, cleverly utilizing the natural swaying of floating objects at sea to replace the active scanning of the coherent Doppler wind measurement radar. Furthermore, the structure is optimized to be more compact, and the volume and weight are significantly reduced to the point of qualitative change, significantly reducing the cost and difficulty of the entire chain of production, testing, construction, and recovery of such projects.

[0064] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0065] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0066] The above is a detailed introduction to the offshore floating wind measurement lidar provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, various improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A floating wind measurement laser radar at sea, characterized in that: It includes a spherical outer shell, an energy system, a Doppler coherent wind measurement system and a control system; The energy system is used to supply energy to the Doppler coherent wind measurement system and the control system; the Doppler coherent wind measurement system and the control system are located in the quasi-spherical outer shell, and the control system is communicatively connected to the Doppler coherent wind measurement system; the quasi-spherical outer shell is provided with a light port, and the Doppler coherent wind measurement system transmits a laser signal through the light port and receives an echo signal corresponding to the laser signal; The control system includes an attitude and direction measuring device and a processor, wherein the processor is configured to: Determining the directional direction of the light emitted by the Doppler coherent wind measurement system by the attitude and direction finding device; When the pointing direction reaches a preset direction, obtaining wind speed data corresponding to the preset direction through the Doppler coherent wind measurement system; The quasi-spherical outer shell causes the offshore floating wind measurement lidar to sway with the waves when floating on the sea surface, so that the directional direction of the light emitted by the Doppler coherent wind measurement system changes with the swaying of the offshore floating wind measurement lidar, thereby replacing active scanning and canceling the scanning system.

2. The offshore floating wind measurement laser radar according to claim 1, characterized in that: The processor is further configured to: When the wind speed data corresponding to the preset direction reaches a preset number, the wind measurement data corresponding to the preset direction is calculated based on the wind speed data.

3. The offshore floating wind measurement laser radar according to claim 1, characterized in that: The control system further includes a communication device, and the processor is further configured to: The data generated by the offshore floating wind measurement lidar is sent to the main station through the communication device.

4. The offshore floating wind measurement laser radar according to claim 1, characterized in that: The spherical outer shell is provided with a counterweight, and the counterweight is arranged opposite to the light opening.

5. The offshore floating wind measurement laser radar according to claim 1, characterized in that: The spherical outer shell is provided with a ventilation pipe which connects the inner space of the spherical outer shell with the outer space.

6. The offshore floating wind measurement laser radar according to claim 5, characterized in that: The ventilation pipe is connected with a water collecting chamber.

7. The offshore floating wind measurement laser radar according to claim 1, characterized in that: The energy system includes a storage battery located in the spherical outer shell and a solar cell panel located on the outer periphery of the spherical outer shell, wherein the solar cell panel is electrically connected to the storage battery.

8. The offshore floating wind measurement laser radar according to claim 7, characterized in that: The solar cell panel is a special-shaped solar cell panel that fits the outer peripheral surface of the spherical outer shell.

9. The offshore floating wind measurement laser radar according to claim 1, characterized in that: The energy system includes a fuel tank.

10. The offshore floating wind measurement laser radar according to any one of claims 1 to 9, characterized in that: The maximum diameter of the spherical outer shell ranges from 1 m to 3 m, including the endpoint values.

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