CN110729963A - Unmanned ship bidirectional solar energy collecting device and collecting method thereof - Google Patents
Unmanned ship bidirectional solar energy collecting device and collecting method thereof Download PDFInfo
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- CN110729963A CN110729963A CN201910959407.XA CN201910959407A CN110729963A CN 110729963 A CN110729963 A CN 110729963A CN 201910959407 A CN201910959407 A CN 201910959407A CN 110729963 A CN110729963 A CN 110729963A
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- 230000002457 bidirectional effect Effects 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 8
- 238000002474 experimental method Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000003195 fascia Anatomy 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- MARUHZGHZWCEQU-UHFFFAOYSA-N 5-phenyl-2h-tetrazole Chemical compound C1=CC=CC=C1C1=NNN=N1 MARUHZGHZWCEQU-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/20—Optical components
- H02S40/22—Light-reflecting or light-concentrating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
- B63H2021/171—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor making use of photovoltaic energy conversion, e.g. using solar panels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
Abstract
The device is used on the water surface and comprises a solar cell and a buoyancy support for mounting the solar cell, wherein the top of the buoyancy support is a solar supporting plate, the solar supporting plate is positioned above the water surface, and the top surface of the solar supporting plate facing the light and the bottom surface of the backlight are both provided with the solar cell. The solar energy collecting device is simple in structure and convenient to set, the solar cells on the front side of the solar supporting plate directly receive incident light of the sun, the solar cells on the back side of the solar supporting plate receive reflected light of solar radiation light by utilizing mirror reflection of the water surface to sunlight, and the solar energy reflected by the water surface is effectively utilized while incident solar rays are utilized. Experiments show that after the solar cell on the bottom surface is added, compared with the solar cell only arranged on the top surface, the actually measured output electric energy of the solar cell of the whole device is increased by 50-70%.
Description
Technical Field
The invention relates to the technical field of solar photovoltaic systems, in particular to a bidirectional solar energy collecting device and a bidirectional solar energy collecting method for an unmanned boat.
Background
Solar photovoltaic systems refer to facilities that convert solar energy into direct current electrical energy using the photovoltaic effect of photovoltaic semiconductor materials. The core of a photovoltaic installation is a solar panel. At present, the semiconductor materials used for power generation mainly include monocrystalline silicon, polycrystalline silicon, amorphous silicon, cadmium telluride and the like. Since the application of renewable energy is actively promoted in all countries in recent years, the development of the photovoltaic industry is very rapid, and a photovoltaic power station refers to a photovoltaic power generation system which is connected with a power grid and transmits power to the power grid, belongs to a green energy project encouraged by the nation, and the development of a large photovoltaic power station is very rapid.
The unmanned ship is a fast-developing water surface automatic navigation platform, solar energy is a power energy source of the unmanned ship, how to obtain more solar energy on a limited ship body is one of key technologies of the unmanned ship using the solar energy as power.
Disclosure of Invention
The invention aims to provide a bidirectional solar energy collecting device for an unmanned boat and a collecting method thereof.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the utility model provides a two-way solar energy collection system of unmanned ship, locates on the surface of water, includes solar cell and installation solar cell's buoyancy support, its characterized in that: the solar supporting plate is arranged at the top of the buoyancy support and located above the water surface, and solar cells are mounted on the top surface facing light and the bottom surface being backlight.
And the solar cell is adhered and fixed with the solar supporting plate.
As a preferable technical scheme of the invention, the buoyancy support comprises a solar supporting plate, supporting legs and a hull, wherein the supporting legs are supported at the bottom of the solar supporting plate, and the hull floats at the bottom of the supporting legs.
Furthermore, the supporting legs are divided into a plurality of rows and arranged at the bottom of the solar supporting plate; the bottom of each row of supporting legs is provided with a boat body, and the total weight of the boat body accounts for more than seventy percent of the weight of the whole device. Preferably, four supporting legs support the solar cell solar supporting plate, the four supporting legs form two rows, and two boat bodies are installed to form a double-boat body structure.
Further, the distance between the bottom surface of the solar supporting plate and the water surface is not less than 1/6 of the length of the solar supporting plate, and the length of the solar supporting plate is obtained by measuring along the central axis in the length direction.
Furthermore, the solar supporting plate is horizontally arranged and is a plane plate or a convex plate taking the center of the plate as the maximum thickness; the solar supporting plate is oval or rectangular in shape, and the length-width ratio is larger than 1.
Furthermore, the top end of the supporting leg and the solar supporting plate are connected through bolts or welding or other common connection modes, and the bottom end of the supporting leg and the hull are connected through bolts or welding or other common connection modes.
Further, the buoyancy support further comprises an inclined support and a horizontal support, and the inclined support and the horizontal support are arranged between the adjacent support legs.
Furthermore, the solar supporting plate is made of metal, glass fiber reinforced plastic or carbon fiber composite materials, the thickness range is 0.05-0.2 m, preferably the thickness of the solar supporting plate is far lower than that of the solar supporting plate, for example, the length is 3 m, the center thickness is 0.1 m, and the edge thickness is 0.05 m; the supporting legs are made of composite materials or metal materials, and the four supports are as thin as possible so as to reduce the shielding of reflected sunlight; the boat body is shaped like a kayak.
In addition, the invention also provides a solar energy collecting method by using the unmanned boat bidirectional solar energy collecting device, which is characterized by comprising the following steps:
step one, material preparation: preparation of solar cells, solar pallets and related support materials;
step two, preparing a buoyancy support: preparing a buoyancy support according to the design size;
step three, mounting a solar cell on a solar supporting plate: solar cells are respectively arranged on the top surface and the bottom surface of the solar supporting plate;
step four, mounting the solar supporting plate on the buoyancy support: on the basis of ensuring the balance of equipment, the solar supporting plate is arranged on the buoyancy support;
step five, connecting matched equipment: connecting a solar cell with a matched solar manager, and connecting the boat body with a motor driving device and a control system;
step six, formally entering water for use: and starting a control system to control the whole unmanned ship bidirectional solar energy collecting device to sail.
The solar unmanned boat is a sea surface vehicle taking solar energy as power. The solar panel is generally installed by installing the photosensitive surface of the battery facing the sunlight. Because the water surface has strong reflection capability, the sunlight is reflected by the water surface, the transmission direction is changed, and the sunlight is transmitted to the oblique upper side. By utilizing the principle, the unmanned boat bidirectional solar energy collecting device is designed.
Compared with the prior art, the invention has the technical advantages that:
according to the invention, the solar cells are adhered to the upper surface and the lower surface of the solar supporting plate, the solar cells on the front surface (top surface) of the solar supporting plate directly receive incident light of the sun, and the solar cells on the reverse surface (bottom surface) of the solar supporting plate receive reflected light of solar radiation light by utilizing the mirror reflection of the sea surface (water surface) to the sunlight, so that the structure can expand the equivalent area of the obtained solar energy by more than 1.5 times under the condition of no change of the area of the solar supporting plate.
Experiments show that after the solar cell on the bottom surface is added, compared with the solar cell only arranged on the top surface, the actually measured output electric energy of the solar cell of the whole device is increased by 50-70%.
The solar water surface solar water. The solar unmanned boat is a water surface detection platform developed in China, is at the world leading level, and compared with an underwater glider and a wave gliding boat, the sailing speed of the unmanned boat is far higher than that of the two platforms. The advantages will be more obvious with the double-sided solar energy collection technology.
Drawings
The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are meant to be illustrative, not limiting of the invention, and in which:
FIG. 1 is a schematic overall structure diagram of a bidirectional solar energy collecting device of an unmanned boat, which is provided by the invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic top view of one embodiment of a solar fascia according to the present invention;
FIG. 4 is a schematic top view of another embodiment of a solar energy pallet according to the present invention;
FIG. 5 is a schematic view of a bidirectional solar energy collection device of an unmanned surface vehicle according to the present invention;
fig. 6 is a graph showing the change of the solar radiation day according to the present invention.
Reference numerals: 1-water surface, 2-solar cell, 3-buoyancy support, 3.1-solar support plate, 3.2-support leg, 3.3-hull, 4-incident light and 5-reflected light.
Detailed Description
Hereinafter, embodiments of the unmanned-boat bidirectional solar energy collecting apparatus and the collecting method thereof of the present invention will be described with reference to the accompanying drawings.
The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein. The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of respective portions and their mutual relationships. It is noted that the drawings are not necessarily to the same scale so as to clearly illustrate the structures of the various elements of the embodiments of the invention. Like reference numerals are used to denote like parts.
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention. As shown in fig. 1 and 2, the bidirectional solar energy collecting device for the unmanned surface vehicle is arranged on the sea surface or the water surface 1, and comprises a solar cell 2 and a buoyancy support 3 for installing the solar cell 2, wherein the buoyancy support 3 comprises a solar support plate 3.1, supporting legs 3.2 and a hull 3.3, the supporting legs 3.2 are supported at the bottom of the solar support plate 3.1, and the hull 3.3 floats at the bottom of the supporting legs 3.2. The weight of the hull at the lower part is far larger than that of the vertical weight distribution design of the solar supporting plate (including the solar cell) to prevent overturning, and the total weight of the hull 3.3 accounts for more than seventy percent of the weight of the whole device. The supporting legs 3.2 are divided into a plurality of rows and arranged at the bottom of the solar supporting plate 3.1; one hull 3.3 is arranged at the bottom of each row of legs 3.2. Preferably, four supporting legs support the solar cell solar supporting plate, the four supporting legs form two rows, and two boat bodies are installed to form a double-boat body structure. The top of landing leg 3.2 adopts bolted connection with solar energy layer board 3.1, and bolted connection is adopted with hull 3.3 in the bottom. The buoyant support 3 further comprises a diagonal brace and a horizontal brace, both of which are arranged between the adjacent legs 3.2.
The top of the buoyancy support 3 is a solar supporting plate 3.1, the solar supporting plate 3.1 is positioned above the water surface 1, and the top surface facing light and the bottom surface being backlight are both provided with solar cells 2. The solar supporting plate 3.1 is characterized in that the top surface solar cell 2 is fixed by pasting, the bottom surface solar cell 2 is fixed by pasting, and the pasting material is selected from conventional solar cell pasting materials. Besides, various embedding grooves or limiting installation grooves can be arranged on the solar supporting plate 3.1 to install the solar cell so as to ensure the irradiation surface and the installation firmness.
Further, the solar supporting plate is horizontally arranged. The distance between the bottom surface of the solar supporting plate 3.1 and the water surface 1 is not less than 1/6 of the length of the solar supporting plate, and the length of the solar supporting plate is obtained by measuring along the central axis in the length direction. The solar energy supporting plate 3.1 is horizontally arranged. The shape of the solar fascia 3.1 can be varied in many ways, as shown in fig. 3 and 4, which show an oval and a rectangle, respectively, preferably with an aspect ratio range greater than 1, and the surface of the solar fascia 3.1 can be a flat plate or a convex plate with the maximum thickness at the center of the plate.
In material selection, the solar supporting plate 3.1 is made of metal, such as steel, aluminum alloy and the like, or can be made of glass fiber reinforced plastic and carbon fiber composite materials, the thickness range is 0.05-0.2 m, the supporting legs 3.2 are made of composite materials or metal, and the four supports are as thin as possible so as to reduce the shielding of reflected sunlight; the hull 3.3 is shaped like a kayak.
The invention also provides a solar energy collecting method by using the unmanned boat bidirectional solar energy collecting device of any one of claims 1 to 9, which is characterized by comprising the following steps:
step one, material preparation: preparation of solar cells 2, solar pallets 3.1 and related support materials;
step two, preparing a buoyancy support 3: preparing a buoyancy bracket 3 according to the design size;
step three, mounting a solar cell 2 on a solar supporting plate 3.1: solar cells 2 are respectively arranged on the top surface and the bottom surface of the solar supporting plate 3.1;
step four, installing the solar supporting plate 3.1 on the buoyancy support 3: on the basis of ensuring the balance of the equipment, a solar supporting plate 3.1 is arranged on a buoyancy bracket 3;
step five, connecting matched equipment: the solar cell 2 is connected with a matched solar energy manager, and the boat body 3.3 is connected with a motor driving device and a control system;
step six, formally entering water for use: and starting a control system to control the whole unmanned ship bidirectional solar energy collecting device to sail.
The solar unmanned boat is a sea surface vehicle taking solar energy as power. The solar panel is generally installed by installing the photosensitive surface of the battery facing the sunlight. Because the water surface has strong reflection capability, the sunlight is reflected by the water surface, the transmission direction is changed, and the sunlight is transmitted to the oblique upper side. By utilizing the principle, the unmanned boat bidirectional solar energy collecting device is designed.
Referring to fig. 5, the solar cells are adhered to the upper surface and the lower surface of the solar supporting plate, the solar cells on the front surface (top surface) of the solar supporting plate directly receive incident light 4 of the sun, and the solar cells on the reverse surface (bottom surface) of the solar supporting plate receive reflected light 5 of solar radiation light by utilizing 'mirror surface' reflection of sunlight on the sea surface (water surface).
Experiments show that after the solar cell on the bottom surface is added, compared with the solar cell only arranged on the top surface, the actually measured output electric energy of the solar cell of the whole device is increased by 50-70%. FIG. 6 is a graph of solar radiation diurnal variation of front and back sides measured on the sea surface in a day, wherein dark points are solar direct radiation power, the solar direct radiation power is about 1200W/m from 8 to 17, and light points are water surface reflected radiation power, and the light points are 500-1200W/m.
The solar water surface solar water. The solar unmanned boat is a water surface detection platform developed in China, is at the world leading level, and compared with an underwater glider and a wave gliding boat, the sailing speed of the unmanned boat is far higher than that of the two platforms. The advantages will be more obvious with the double-sided solar energy collection technology.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a two-way solar energy collection system of unmanned ship, locates on surface of water (1), buoyancy support (3) including solar cell (2) and installation solar cell (2), its characterized in that: the solar floating support is characterized in that a solar supporting plate (3.1) is arranged at the top of the buoyancy support (3), the solar supporting plate (3.1) is located on the water surface (1), and solar cells (2) are mounted on the top surface of the buoyancy support facing light and the bottom surface of the buoyancy support facing light.
2. The unmanned-boat bidirectional solar energy collection device of claim 1, wherein: the solar cell (2) is fixedly adhered to the solar supporting plate (3.1).
3. The unmanned-boat bidirectional solar energy collection device of claim 1, wherein: the buoyancy support (3) comprises a solar supporting plate (3.1), supporting legs (3.2) and a boat body (3.3), the supporting legs (3.2) are supported at the bottom of the solar supporting plate (3.1), and the boat body (3.3) is arranged at the bottom of the supporting legs (3.2) in a floating mode.
4. The unmanned-boat bidirectional solar energy collection device of claim 3, wherein: the supporting legs (3.2) are divided into a plurality of rows and arranged at the bottom of the solar supporting plate (3.1); the bottom of each row of supporting legs (3.2) is provided with a boat body (3.3), and the total weight of the boat body (3.3) accounts for more than seventy percent of the weight of the whole device.
5. The unmanned-boat bidirectional solar energy collection device of claim 1, wherein: the distance between the bottom surface of the solar supporting plate (3.1) and the water surface (1) is not less than 1/6 of the length of the solar supporting plate.
6. The unmanned-boat bidirectional solar energy collection device of claim 1, wherein: the solar supporting plate (3.1) is horizontally arranged, is a plane plate or a convex plate taking the center of the plate as the maximum thickness, is oval or rectangular in shape, and has the length-width ratio larger than 1.
7. The unmanned-boat bidirectional solar energy collection device of claim 1, wherein: the top ends of the supporting legs (3.2) are connected or welded with the solar supporting plate (3.1) through bolts, and the bottom ends of the supporting legs are connected or welded with the boat body (3.3) through bolts.
8. The unmanned-boat bidirectional solar energy collection device of claim 1, wherein: the buoyancy support (3) further comprises an inclined support and a horizontal support, and the inclined support and the horizontal support are arranged between the adjacent support legs (3.2).
9. The unmanned-boat bidirectional solar energy collection device of claim 1, wherein: the solar supporting plate (3.1) is made of metal, glass fiber reinforced plastic or carbon fiber composite materials, and the thickness range is 0.05-0.2 m; the supporting legs (3.2) are made of composite materials or metal.
10. The solar energy collection method by using the unmanned ship bidirectional solar energy collection device of any one of claims 1 to 9, characterized by comprising the following steps:
step one, material preparation: preparation of solar cells (2), solar pallets (3.1) and related support materials;
step two, preparing a buoyancy support (3): preparing a buoyancy bracket (3) according to the design size;
step three, mounting a solar cell (2) on a solar supporting plate (3.1): solar cells (2) are respectively arranged on the top surface and the bottom surface of the solar supporting plate (3.1);
step four, installing the solar supporting plate (3.1) on the buoyancy support (3): on the basis of ensuring the balance of equipment, a solar supporting plate (3.1) is arranged on a buoyancy support (3);
step five, connecting matched equipment: the solar battery (2) is connected with a matched solar manager, and the boat body (3.3) is connected with a motor driving device and a control system;
step six, formally entering water for use: and starting a control system to control the whole unmanned ship bidirectional solar energy collecting device to sail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910959407.XA CN110729963A (en) | 2019-10-10 | 2019-10-10 | Unmanned ship bidirectional solar energy collecting device and collecting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910959407.XA CN110729963A (en) | 2019-10-10 | 2019-10-10 | Unmanned ship bidirectional solar energy collecting device and collecting method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849192A (en) * | 2012-10-11 | 2013-01-02 | 李万红 | Solar unmanned boat |
| CN106921341A (en) * | 2017-03-03 | 2017-07-04 | 广东爱康太阳能科技有限公司 | A kind of double-sided solar battery electricity generation system waterborne |
| CN207510667U (en) * | 2017-11-14 | 2018-06-19 | 华南理工大学 | Arc-shaped box connecting bridge long-distance remote control seawater sampling solar energy binary unmanned boat |
| CN207801805U (en) * | 2017-11-14 | 2018-08-31 | 泰州隆基乐叶光伏科技有限公司 | A kind of solar energy double-sided component installation structure in floating on water surface power station |
| WO2020067620A1 (en) * | 2018-09-28 | 2020-04-02 | (주)지오시스템리서치 | Unmanned marine autonomous drone with orientation restoration function |
-
2019
- 2019-10-10 CN CN201910959407.XA patent/CN110729963A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849192A (en) * | 2012-10-11 | 2013-01-02 | 李万红 | Solar unmanned boat |
| CN106921341A (en) * | 2017-03-03 | 2017-07-04 | 广东爱康太阳能科技有限公司 | A kind of double-sided solar battery electricity generation system waterborne |
| CN207510667U (en) * | 2017-11-14 | 2018-06-19 | 华南理工大学 | Arc-shaped box connecting bridge long-distance remote control seawater sampling solar energy binary unmanned boat |
| CN207801805U (en) * | 2017-11-14 | 2018-08-31 | 泰州隆基乐叶光伏科技有限公司 | A kind of solar energy double-sided component installation structure in floating on water surface power station |
| WO2020067620A1 (en) * | 2018-09-28 | 2020-04-02 | (주)지오시스템리서치 | Unmanned marine autonomous drone with orientation restoration function |
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