Conveyance method and conveyance system

Abstract

To provide a conveying method or the like capable of efficiently conveying a photovoltaic power generation unit from the ground to the sea.SOLUTION: In the conveying method, a plurality of photovoltaic power generation units 30 floatable on the water are conveyed from the ground to the water, and the plurality of photovoltaic power generation units 30 floating on the water are simultaneously conveyed. The plurality of photovoltaic power generation units 30 are mounted on a truck 61 arranged on the ground, the truck 61 is made to travel toward the water, and the photovoltaic power generation units 30 floating on the water are conveyed from the truck 61 by a conveying device.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a transport method and a transport system. [Background technology]

[0002] A floating solar power generation system has been proposed in which a floating island is moored to a mooring buoy that is moored to the seabed, and multiple floating solar cell panels are connected to the floating island on the surrounding sea surface. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-7874 Summary of the Invention [Problem to be solved by the invention]

[0004] The solar power generation system of Patent Document 1 is fabricated by connecting floating solar cell panels, i.e., solar power generation units that integrate solar cell panels and floats, around a floating island floating on the sea surface. Therefore, the solar power generation units manufactured in a manufacturing factory on land are loaded onto a work boat or the like and transported to the vicinity of the floating island, and then connected to the floating island.

[0005] In one aspect, an object is to provide a transportation method that can efficiently transport a solar power generation unit from land to sea. [Means for solving the problem]

[0006] The transportation method involves transporting a plurality of solar power generation units that can float on water from the ground to the water surface, and simultaneously transporting the plurality of solar power generation units floating on the water. [Effects of the Invention]

[0007] In one aspect, it is possible to provide a transportation method that can efficiently transport a solar power generation unit from land to sea. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is an explanatory diagram illustrating an outline of the assembly work of the solar cell array. [Figure 2] FIG. 2 is a perspective view of a solar power generation unit. [Figure 3] 3 is a cross-sectional view taken along line III-III in FIG. 1 after the solar power generation unit has been lifted. [Figure 4] FIG. 4 is an enlarged view of part IV in FIG. [Figure 5] FIG. [Figure 6] FIG. 4 is an enlarged view of a portion VI in FIG. [Figure 7] FIG. [Figure 8] FIG. 8 is a view taken along arrow VIII in FIG. 7. [Figure 9] FIG. 1 is an explanatory diagram illustrating an outline of the assembly work of the solar cell array. [Figure 10] FIG. 10 is an enlarged view of the X portion in FIG. [Figure 11] FIG. 1 is an explanatory diagram illustrating an outline of the assembly work of the solar cell array. [Figure 12] 12 is a view taken along the arrow XII in FIG. [Figure 13] 13 is a cross-sectional view taken along line XIII-XIII in FIG. 12. [Figure 14] FIG. 1 is an explanatory diagram illustrating an outline of the assembly work of the solar cell array. [Figure 15] FIG. 1 is an explanatory diagram illustrating an outline of the assembly work of the solar cell array. [Figure 16] FIG. 1 is an explanatory diagram illustrating an outline of a method for towing a solar cell array. [Figure 17] FIG. 1 is an explanatory diagram illustrating an outline of a method for towing a solar cell array. [Figure 18] FIG. 18 is a view taken along the arrow XVIII in FIG. [Figure 19] FIG. 10 is an explanatory diagram illustrating an outline of an assembly operation according to a second embodiment. [Figure 20] 20 is a view taken along the arrow XX in FIG. 19. [Figure 21] FIG. 21 is a cross-sectional view taken along line XXI in FIG. 20. [Figure 22] FIG. 11 is an explanatory diagram illustrating an outline of the assembly work of the solar cell array according to the third embodiment. [Figure 23] 23 is a view taken along the arrow XXIII in FIG. 22. [Figure 24] FIG. 10 is an explanatory diagram illustrating an outline of the assembly work of the solar cell array according to the fourth embodiment. [Figure 25] 25 is a view taken along the arrow XXV in FIG. 24. [Figure 26] FIG. 10 is a perspective view of a solar power generation unit according to a fifth embodiment. [Figure 27] FIG. 10 is a partial cross-sectional view of a solar power generation unit according to a fifth embodiment. [Figure 28] FIG. 10 is a perspective view of a mounting fixture according to a fifth embodiment. [Figure 29] FIG. 10 is a perspective view of a solar power generation unit according to a sixth embodiment. [Figure 30] FIG. 10 is a partial cross-sectional view of a solar power generation unit according to a sixth embodiment. [Figure 31] FIG. 13 is a perspective view of a mounting fixture according to a sixth embodiment. [Figure 32] FIG. 2 is an explanatory diagram illustrating the configuration of a transport system. [Figure 33] 10 is a flowchart illustrating the flow of processing of a program. [Figure 34] 10 is a flowchart illustrating the processing flow of a launching subroutine. [Figure 35] FIG. 13 is an explanatory diagram illustrating the configuration of a transport system according to an eighth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Embodiment 1] As part of efforts to protect the Earth from climate change caused by global warming, the use of renewable energy sources with low carbon dioxide emissions is being encouraged. Furthermore, in order to supply cheap and safe electrical energy to everyone, it is preferable for electricity generated by large-scale power generation facilities to be provided to consumers via the power grid, rather than for individual consumers such as ordinary households to own small-scale power generation facilities.

[0010] Solar power generation is one type of renewable energy. In Japan, the FIT (Feed-in Tariff) system, a fixed price purchase system for renewable energy, was launched in July 2012. The FIT system is a system in which the government guarantees that electric power companies will purchase electricity generated from renewable energy sources at a fixed price for a set period of time. Since the introduction of the FIT system, many power generation facilities using renewable energy, including solar power generation facilities, have been installed in Japan.

[0011] According to statistics from fiscal 2019, Japan has the world's highest solar power generation capacity per land area. However, in recent years, a shortage of land for installing new solar power generation facilities has become a problem. For example, there has been consideration of using farmland that has fallen into disuse as a site for solar power generation facilities, but the high cost of developing abandoned farmland that has turned into forest has become a problem.

[0012] Large-scale solar power generation facilities are sometimes installed on sloping land to effectively utilize the land. Solar power generation facilities are expected to improve power generation efficiency by being installed on a south-facing slope. However, it is known that solar power generation facilities installed on sloping land pose a risk of increasing the risk of disasters such as landslides during bad weather.

[0013] The flat land at the bottom of a slope is often used for residential areas, etc. In order to realize sustainable urban development where people living in such residential areas can continue to live safely, it is desirable to install solar power generation facilities in locations other than on slopes.

[0014] Furthermore, solar power generation facilities affected by landslides will be unable to generate electricity until repairs are completed. Depending on the severity of the landslide, repairs may have to be abandoned. In order to create a sustainable, disaster-resistant power infrastructure, it is desirable to install solar power generation facilities in locations other than on sloping ground.

[0015] The offshore solar power generation system disclosed in Patent Document 1, which combines a floating island with floating solar panels, can eliminate the drawbacks of solar power generation systems installed on sloping ground. Assembling such an offshore solar power generation system in a place surrounded by a quay and easily managed by humans, and then transporting it to the installation site, contributes to preventing and significantly reducing all types of marine pollution.

[0016] In light of the above circumstances, this embodiment will explain a method for assembling a solar power generation system in which solar power generation units manufactured on land are transported to the sea surrounded by quays, the solar cell array is assembled, and then the solar cell array is towed to an installation site. Figure 1 is an explanatory diagram that explains an overview of the solar cell array assembly work.

[0017] FIG. 1 shows an overview of an assembly workshop 10 for a solar power generation system installed near a quay. A first foundation 581, a second foundation 582, and a third foundation 583 are constructed using concrete or the like. The first foundation 581 and the second foundation 582 are approximately parallel. The third foundation 583 is approximately perpendicular to the first foundation 581 and the second foundation 582. The area surrounded by the first foundation 581, the second foundation 582, and the third foundation 583 in an approximately inverted U-shape is an offshore workshop 65.

[0018] A transition area 66 is provided from the upper left to the left side of the offshore work site 65 in Fig. 1. The transition area 66 is an area where the water depth gradually becomes shallower from the right side to the left side in Fig. 1. At the boundary between the offshore work site 65 and the transition area 66, a space is provided between the first foundation 581 and the sea surface.

[0019] A second crane 52 is installed across the offshore work site 65. The second crane 52 is a gantry crane including first rails 521 installed on a first base 581 and a second base 582, respectively, and a second rail 522 stretched between the two first rails 521. The second rail 522 is capable of traveling along the first rail 521. A towing vehicle 524 (see FIG. 9) is capable of traveling along the second rail 522.

[0020] A first crane 51 is installed on the ground. The first crane 51 is a gantry crane including two first rails 511 arranged parallel to a first base 581, and a second rail 512 suspended below the two first rails 511 and arranged parallel to a second rail 522. The first rails 511 are each supported in the air by two supports 517. The second rails 512 are capable of traveling along the first rails 511.

[0021] A transport carriage rail 55 is laid from the ground to the seabed of the offshore work site 65, via under the first crane 51 and the seabed in the transition area 66. The transport carriage rail 55 is parallel to the second rail 512 and the second rail 522. In the following description, the direction parallel to the transport carriage rail 55, i.e., the traveling direction of the transport carriage 61, may be referred to as the first direction. Similarly, the direction parallel to the first rail 521 may be referred to as the second direction. The first direction and the second direction intersect. The transport carriage 61 is an example of a carriage in this embodiment.

[0022] A transport car 61 runs on the transport car rail 55. The transport car 61 is a train consisting of a driving car 619 and five car bodies 611 connected together. The driving car 619 can run both forward and backward. The structure of the car bodies 611 will be described later.

[0023] The first crane 51, the second crane 52, and the transport cart 61 are each operated by an appropriately qualified operator. The operators communicate with each other and perform work in accordance with a predetermined work procedure. The first crane 51, the second crane 52, and the transport cart 61 may be automatically operated by a driving support AI (Artificial Intelligence) or the like.

[0024] An overview of the assembly work of the solar cell array 14 (see FIG. 15) in the assembly workshop 10 will be described. The solar power generation unit 30, which will be described later, is transported by truck 16 to below the first crane 51. For better visibility, the solar power generation unit 30 is shown schematically as a roughly square with two diagonal lines added.

[0025] The solar power generation unit 30 is loaded onto a transport cart 61 by a first crane 51. The transport cart 61 travels on a transport cart rail 55, thereby transporting the solar power generation unit 30 onto the water.

[0026] The solar power generation units 30 floating in a row on the water are moved downward in Fig. 1 by the second crane 52. The second crane 52 and the electromagnetic device 790 (see Fig. 10) connecting the second crane 52 and the solar power generation units 30 function as a transport device that simultaneously transports the multiple solar power generation units floating on the water in a second direction that intersects with the first direction.

[0027] The solar power generation units 30 are connected to each other as appropriate using connectors 37 (see FIG. 6 ) or the like. By repeating the above process, the solar cell array 14 is assembled, in which a large number of solar power generation units 30 are arranged in a matrix in both the first and second directions. The solar power generation units 30 are not in close contact with each other, but are arranged with gaps between them within the length of the connectors 37. As a result, the transportation of the solar power generation units 30 from land to sea and the assembly of the solar cell array 14 can be carried out efficiently.

[0028] The assembled solar cell array 14 is towed to the installation site by a small tugboat 561 (see Figure 16) and a large tugboat 565 (see Figure 17). By assembling the solar cell array 14 in the assembly workshop 10 installed near the quay, the solar cell array 14 can be assembled safely and at low cost.

[0029] FIG. 2 is a perspective view of a solar power generation unit 30. The solar power generation unit 30 includes a solar cell panel 31, a frame 33, and a float 35, and is capable of floating on water due to the buoyancy of the float 35. The four sides of the approximately square solar cell panel 31 are surrounded by the frame 33. The frame 33 is dish-shaped or frame-shaped with a recess corresponding to the outer shape of the solar cell panel 31, and functions as a reinforcing material to prevent damage to the solar cell panel 31 due to external forces. The frame 33 is made of resin, and magnetic material 34 (see FIG. 4) is embedded in the four corners and the center of each side.

[0030] The float 35, with its substantially square bottom surface facing upward, is a block of substantially quadrangular pyramid shape formed integrally using, for example, foamed resin with numerous closed cells dispersed therein. The solar cell panel 31 is fixed to the bottom surface of the float 35 via a frame portion 33. The float 35 and the frame portion 33 do not need to be in close contact with each other, and a gap may be provided between them.

[0031] The float 35 may be in the form of a shell having a cavity. The shell-like portion is made of, for example, FRP (Fiber Reinforced Plastics). The inside of the cavity is filled with a gas such as air or nitrogen. The cavity may also be filled with foamed resin.

[0032] The float 35 is a container-type float with an opening at the top, and the frame 33 and the solar panel 31 may function as a lid that watertightly closes the opening. The float 35 may have an air chamber filled with gas inside.

[0033] A position indicator 331 is provided on the upper surface of the frame portion 33. The position indicator 331 is an indicator that indicates the position of the magnetic body 34. If the float 35 is semi-transparent and the magnetic body 34 can be seen from the outside, the magnetic body 34 may also serve as the position indicator 331. The position indicator 331 may be provided on the side surface of the float 35.

[0034] The solar power generation unit 30 has an upper surface that is roughly square, measuring, for example, 2 meters in length and width, and the length of the perpendicular line connecting the upper surface to the apex of the float 35 is approximately 80 centimeters. However, the dimensions of the solar power generation unit 30 are not limited to those described above.

[0035] Continuing the explanation, returning to Figure 1, the truck 16 carrying three solar power generation units 30 in a row stops under the first crane 51, approximately parallel to the second rail 512. The second rail 512 moves to the top of the truck 16 and lifts up the solar power generation units 30.

[0036] 3 is a cross-sectional view taken along line III-III in FIG. 1 after the solar power generation unit 30 has been lifted. The first rail 511 is not shown in FIG. 3. Two traveling bodies 514 are suspended from the second rail 512. The traveling bodies 514 can travel along the second rail 512.

[0037] Figure 4 is an enlarged view of part IV in Figure 3. A frame 795 is suspended from each running body 514 via two frame hangers 794, which appear to overlap in Figure 4. Therefore, the frame 795 is suspended by a total of four frame hangers 794. The frame hangers 794 are extendable and retractable. The extension and contraction of the frame hangers 794 causes the frame 795 to move up and down.

[0038] Fig. 5 is a top view of frame 795. In Fig. 5, the outline of solar power generation unit 30 and the outline of electromagnet 791 are indicated by two-dot chain lines. Frame 795 is a frame in the shape of three roughly square shapes that are one size smaller than the top surface of solar power generation unit 30 and have two diagonal lines added to them, lined up and connected in a row.

[0039] 4 and 5, electromagnets 791 are suspended from the four corners of the bottom surface of each square portion of frame 795 via electromagnet suspension devices 796. In other words, a total of twelve electromagnets 791 are suspended from frame 795.

[0040] Electromagnet suspender 796 is in the form of a belt with an eye attached to the tip. The upper part of electromagnet 791 is in the form of a hook, which is hooked onto the eye of electromagnet suspender 796. Alternatively, an eye may be provided at the upper part of electromagnet 791, and a hook may be provided at the lower end of electromagnet suspender 796.

[0041] The electromagnet 791 incorporates a battery and a communication device (not shown). A user can wirelessly switch the electromagnet 791 between an on state and an off state. In the state shown in FIG. 4, the electromagnet 791 is in an on state, and the magnetic bodies 34 arranged at the four corners of the solar power generation unit 30 are attracted to the electromagnet 791. In other words, one solar power generation unit 30 is suspended by four electromagnets 791. Three solar power generation units 30 are suspended from one frame 795.

[0042] A power supply cable (not shown) may be connected to electromagnet 791. When the user supplies power from the other end of the power supply cable, electromagnet 791 is turned on, and when the power supply is stopped, electromagnet 791 is turned off. An inexpensive electromagnet 791 can be provided that does not require the incorporation of a battery or communication device.

[0043] Continuing the explanation, returning to Figure 1 . As described above, truck 16 loaded with three solar power generation units 30 stops under first crane 51. Second rail 512 moves to above truck 16. Frame 795 suspended from traveling body 514 traveling on second rail 512 moves to directly above the solar power generation units 30.

[0044] The frame hoisting tool 794 extends, and the electromagnet 791 descends together with the frame 795. During this time, the operator of the first crane 51 uses the position indicator 331 as a landmark to adjust the positional relationship between the truck 16 and the frame 795. The first crane 51 may be provided with a mechanism that automatically moves the traveling body 514 using image recognition to align the positions of the position indicator 331 and the frame 795.

[0045] When the electromagnet 791 and the magnetic body 34 are in close proximity, the electromagnet 791 is turned on and attracts the magnetic body 34. The frame hoisting tool 794 contracts and hoists the photovoltaic power generation unit 30 together with the frame 795 as shown in FIG.

[0046] The second rail 512 travels along the first rail 511 and moves to the top of the transport cart 61. The frame hoisting tool 794 extends and places the solar power generation unit 30 on the car body 611. The electromagnet 791 is turned off and rises, leaving the solar power generation unit 30 behind. As a result, the solar power generation unit 30 moves from the track 16 to the car body 611.

[0047] Fig. 6 is an enlarged view of part VI in Fig. 3. Fig. 7 is a side view of the car body 611. Fig. 8 is a view seen from the arrow VIII in Fig. 7. The car body 611 is constructed to be lightweight and strong by a truss structure. Wheels 612 are attached to the lower part of the car body 611 via suspensions 613.

[0048] Six supports 614 are attached to the upper side of the car body 611. The supports 614 are cushions with a roughly semi-cylindrical shape. The supports 614 are arranged with their flat surfaces facing downwards and perpendicular to the transport cart rail 55. A coupler 615 is arranged on the right end of the car body 611 to connect it to an adjacent car body 611.

[0049] 6, the solar power generation unit 30 is placed on the vehicle body 611 with the float 35 in contact with the curved surface of the support 614. Vibrations generated when the transport cart 61 travels are absorbed by the suspension 613 and the support 614, thereby preventing damage to the solar power generation unit 30 during transport by the transport cart 61.

[0050] The photovoltaic power generation units 30 are connected to each other by connectors 37. The connectors 37 are, for example, composite cables that integrate a power cable and a communication cable with a strength member such as a rope, chain, or wire. When the power generated by the photovoltaic power generation units 30 is transmitted to a power relay device (not shown) by wireless power transmission and communication between the photovoltaic power generation units 30 and a control system (not shown) is also performed wirelessly, the connectors 37 may be simply ropes.

[0051] The connector 37 may be attached to the solar power generation unit 30 before it is loaded onto the truck 16, or may be attached to the solar power generation unit 30 after it is loaded onto the vehicle body 611.

[0052] Although not shown in the figure, the solar power generation units 30 mounted on adjacent vehicle bodies 611 are also connected to each other by the connectors 37. This connection is performed after the solar power generation units 30 are mounted on the vehicle bodies 611.

[0053] FIG. 9 is an explanatory diagram outlining the assembly work of the solar cell array 14. FIG. 9 is a schematic cross-section of the assembly work area 10 cut along a plane parallel to the transport cart rail 55. After the solar power generation units 30 are loaded onto the three right-hand vehicle bodies 611 of the transport cart 61, the transport cart 61 travels toward the offshore work area 65. FIG. 9 shows the state in which the two right-hand vehicle bodies 611 have passed through the transition area 66 and entered the offshore work area 65. The third vehicle body 611 is traveling in the transition area 66.

[0054] Second rail 522 moves directly above transport cart rail 55. A support wall 528 is provided on the near side of second rail 522, extending from second rail 522 to near the water surface over almost the entire length of second rail 522. Figure 9 shows towing vehicle 524 traveling along second rail 522 with part of support wall 528 broken.

[0055] Figure 10 is an enlarged view of part X in Figure 9. In Figure 10, the support wall 528 is not shown. The towing vehicle 524 and the rightmost solar power generation unit 30 are connected by an electromagnetic device 790. The electromagnetic device 790 includes an electromagnet 791 and an electromagnet wire 792. The electromagnet wire 792 is extendable and retractable. The towing vehicle 524, the electromagnet wire 792, and the electromagnet 791 may be detachable or non-detachable.

[0056] As described above, the towing vehicle 524 and the electromagnetic device 790 function as a towing device that transports the solar power generation unit 30 floating on the water from the vehicle body 611 in the first direction.

[0057] 4, a battery and a communication device (not shown) are built into the electromagnet 791. A user can wirelessly switch the electromagnet 791 between an on state and an off state.

[0058] 9 and 10, the electromagnet 791 is in an on state, and the magnetic body 34 arranged in the center of the right edge of the solar power generation unit 30 is attracted to the electromagnet 791. That is, the rightmost solar power generation unit 30 is connected to the towing vehicle 524 by one electromagnet 791.

[0059] The procedure when the transport cart 61 starts to move will be described. The second rail 522 moves to a position directly above the transport cart rail 55. The towing vehicle 524 moves to the left end of the second rail 522. The length of the electromagnet wire 792 is adjusted so that the electromagnet device 790 is positioned slightly above the water surface.

[0060] The transport cart 61 starts traveling toward the offshore work site 65. When the vehicle body 611 enters the water, the solar power generation unit 30 floats on the water due to the buoyancy of the float 35. The floating solar power generation unit 30 continues to drift toward the offshore work site 65 because it is pushed by the following solar power generation unit 30.

[0061] The transport cart 61 stops just before the leading solar power generation unit 30 approaches directly under the electromagnet device 790. Pulled by the solar power generation unit 30 that remains loaded on the transport cart 61, the floating solar power generation unit 30 also comes to a nearly standstill. The electromagnet wire 792 extends, causing the electromagnet 791 to descend and approach the magnetic body 34 located in the center of the right edge of the solar power generation unit 30. The electromagnet 791 turns on and attracts the magnetic body 34.

[0062] The transport cart 61 resumes traveling. The towing vehicle 524 travels rightward at the same speed as the transport cart 61. Because the solar power generation units 30 are connected by the connectors 37, they are towed by the towing vehicle 524 while lined up in a row. In this way, the solar power generation units 30 are transported from land to the water.

[0063] Fig. 11 is an explanatory diagram illustrating an outline of the assembly work of the solar cell array 14. Fig. 12 is a view taken along the arrow XII in Fig. 11. In Fig. 12, the right half of the support wall 528 is removed. Fig. 13 is a cross-sectional view taken along the line XIII-XIII in Fig. 12.

[0064] 11 to 13 show the state in which the transport cart 61 has arrived in front of the second base 582. All of the solar power generation units 30 loaded on the transport cart 61 are floating on the water. The second rail 522 has moved slightly below the row of solar power generation units 30 in FIG. 11.

[0065] 13, a catwalk 529 protrudes from the lower end of the support wall 528 toward the third base 583. The catwalk 529 extends over almost the entire length of the support wall 528. Workers enter the catwalk 529 from the first base 581 or the second base 582 via a passageway not shown.

[0066] The worker hangs the upper end of the electromagnet wire 792 on a hook (not shown) provided on the second rail 522. The worker brings the electromagnet 791 close to the position indicator 331 provided at the center of the lower side of the solar power generation unit 30, and turns the electromagnet 791 on. The magnetic body 34 is attracted to the electromagnet 791. As a result, the second rail 522 and the solar power generation unit 30 are connected via the electromagnet 791 and the electromagnet wire 792.

[0067] The worker connects all of the solar power generation units 30 floating in the offshore work site 65 to the second rail 522. Note that the worker may connect every other solar power generation unit 30 or every third solar power generation unit 30 to the second rail 522, for example.

[0068] The work on the catwalk 529 may be performed by remote control using a manipulator operating in a master-slave system. The manipulator may be integrated with the catwalk 529. The work on the catwalk 529 may be performed by an autonomous robot.

[0069] 14 and 15 are explanatory diagrams outlining the assembly work of the solar cell array 14. The transport cart 61 is traveling leftward, and all vehicles are on the ground. The solar power generation unit 30 is being pulled by the second rail 522 and is moving from the transport cart rail 55.

[0070] 1 to 13 are then repeated to transport a new solar power generation unit 30 to the offshore work site 65. The second rail 522 moves between the row of solar power generation units 30 transported previously and the row of newly transported solar power generation units 30. At this time, the electromagnet wire 792 connected to the solar power generation unit 30 transported first is held by a jig or the like so as not to touch the top surface of the solar power generation unit 30.

[0071] The worker connects the previously transported solar power generation unit 30 to the newly transported solar power generation unit 30 using the connectors 37. After that, the entire solar power generation unit 30 floating on the water is towed by the second rail 522. By repeating the above operations, the solar cell array 14 is assembled in the offshore work site 65, as shown in FIG. 15 .

[0072] Fig. 16 is an explanatory diagram outlining the method for towing the solar cell array 14. The electromagnet wire 792 connected to the first transported solar power generation unit 30 is removed from the second rail 522 and attached to three small towing boats 561. The small towing boats 561 are equipped with towing rods 566 arranged perpendicular to the direction of travel. As shown in Fig. 16, the electromagnet wires 792 are attached so as to be approximately perpendicular to the towing rods 566.

[0073] The small towing vessel 561 tows the solar cell array 14 to a position sufficiently distant from the tip of the second base 582. Because the electromagnet wire 792 and the towing rod 566 are approximately perpendicular, the arrangement of the solar power generation units 30 that make up the solar cell array 14 is less likely to be disturbed during towing.

[0074] Figure 17 is an explanatory diagram outlining a method for towing the solar cell array 14. Figure 18 is a view seen from the arrow XVIII in Figure 17. An electromagnet wire 792 is attached to the solar power generation unit 30 at the right end of the solar cell array 14 via an electromagnet 791. The end of the electromagnet wire 792 is connected to the assist towing vessel 562.

[0075] The towing auxiliary vessel 562 is composed of three auxiliary hulls 563 and a hull connector 564 that connects the auxiliary hulls 563 together. The hull connector 564 is disposed perpendicular to the traveling direction of the auxiliary hulls 563.

[0076] 17, the solar cell array 14 is made up of solar power generation units 30 arranged in a matrix of 14 rows and 9 columns. A total of fourteen electromagnet wires 792 attached to the fourteen solar power generation units 30 on the right side are connected to two towing support vessels 562.

[0077] Each electromagnet wire 792 is attached so as to be approximately perpendicular to the hull connecting body 564 when viewed from above. As shown in Figure 18, the hull connecting body 564 is located at a position higher than the waterline of the auxiliary hull 563. Therefore, during towing, the electromagnet wire 792 extends diagonally upward from the electromagnet 791. The electromagnet wires 792 are approximately parallel to each other.

[0078] The two auxiliary towing vessels 562 are connected to one auxiliary towing vessel 562 via connecting lines 567. The two connecting lines 567 connecting the auxiliary towing vessels 562 are approximately parallel. The leading auxiliary towing vessel 562 is connected to a large towing vessel 565. The solar cell array 14 is towed by the large towing vessel 565 and the auxiliary towing vessel 562, and leaves the quay and is towed to the installation site.

[0079] Because the two connecting lines 567 that connect the towing assist vessels 562 are approximately parallel, the two rear towing assist vessels 562 move in parallel. Because the electromagnet wire 792 and the hull connector 564 are approximately perpendicular, the arrangement of the solar power generation units 30 that make up the solar cell array 14 is less likely to become distorted during towing. As described above, the solar cell array 14 can be towed safely by a single large towing vessel 565.

[0080] The power relay device, the control device, etc. may be connected to the solar cell array 14 before the solar cell array 14 leaves the quay. The power relay device, the control device, etc. may be connected to the solar cell array 14 after the solar cell array 14 arrives at the installation site.

[0081] According to this embodiment, a transporting method can be provided that can efficiently transport solar power generation units 30 arranged in a row from land to sea by using a transporting cart 61 to float the solar power generation units 30 on the sea.

[0082] According to this embodiment, the solar cell array 14 can be assembled safely and at low cost by being assembled in the assembly workshop 10 installed near the quay.

[0083] [Embodiment 2] The present embodiment relates to a method for assembling solar cell array 14 using second crane 52 equipped with third rail 523 arranged parallel to second rail 522. Explanation of parts common to embodiment 1 will be omitted.

[0084] Fig. 19 is an explanatory diagram outlining the assembly work of the second embodiment. Fig. 20 is a view taken along the arrow XX in Fig. 19. In Fig. 20, the connectors 37 that connect the solar power generation units 30 to each other are omitted. Fig. 21 is a cross-sectional view taken along the line XXI in Fig. 20. Figs. 19 and 21 show the work of moving the multiple solar power generation units 30, which were initially transported to the offshore work site 65 as in Fig. 14, from the upper part of the transport cart rail 55 to the lower part in Fig. 19.

[0085] As in the first embodiment, a towing vehicle 524 is attached to the second rail 522 and tows the solar power generation unit 30 that has separated from the vehicle body 611 and is floating on the water surface toward the second base 582.

[0086] 20, three tow boat connectors 572 are attached to the third rail 523 with their longitudinal directions oriented substantially vertically. The tow boat connectors 572 may be movable along the third rail 523 or may be fixed to the third rail 523. A tow boat 571 is attached to the lower end of each tow boat connector 572.

[0087] As shown in Fig. 21, the tow boat 571 floats on the water surface. The tow boat 571 and the solar power generation unit 30 are connected by an electromagnetic device 790. A catwalk 529 is provided between the third rail 523 and the tow boat 571. As shown in Fig. 20, the catwalk 529 extends over almost the entire length of the third rail 523.

[0088] Workers enter the catwalk 529 from the first base 581 or the second base 582 via a passageway not shown, and perform work such as connecting the towing boat 571 and the solar power generation unit 30.

[0089] Returning to Figure 19, the explanation continues. Three solar power generation units 30 are connected to each towing boat 571. The solar power generation units 30 at both ends are also connected to the ends of the third rail 523 by electromagnet devices 790. As the third rail 523 moves downward in Figure 19, the solar power generation units 30 are towed and moved from the top of the transport cart rail 55.

[0090] According to this embodiment, by using the second rail 522 used for towing along the transport cart rail 55 and the third rail 523 used for towing in a direction away from the transport cart rail 55, the solar cell array 14 can be assembled efficiently in a short time.

[0091] [Embodiment 3] This embodiment relates to an assembly work area 10 having two transport cart rails 55. Explanation of parts common to the first embodiment will be omitted.

[0092] Fig. 22 is an explanatory diagram illustrating an outline of the assembly work of the solar cell array 14 according to the third embodiment. Fig. 23 is a view seen from the arrow XXIII in Fig. 22. In this embodiment, the first crane 51 is a crane vehicle equipped with a boom 518. The first crane 51 may be a gantry crane as in the first embodiment.

[0093] Two transport carriage rails 55, namely, a first transport carriage rail 551 and a second transport carriage rail 552, are laid in parallel from the inside of the working radius of the boom 518 to the seabed of the transition area 66 to the seabed of the offshore work site 65. The first transport carriage rail 551 and the second transport carriage rail 552 are parallel to the second rail 522. The transport carriages 61 run on the first transport carriage rail 551 and the second transport carriage rail 552, respectively.

[0094] The second crane 52 includes two first rails 521, a second rail 522, and a third rail 523. The second rail 522 and the third rail 523 are stretched between the two first rails 521 and can travel along the first rails 521.

[0095] Second rail 522 and third rail 523 of the present embodiment include support wall 528 and catwalk 529 as described with reference to Fig. 13. Third rail 523 can simultaneously pull a plurality of electromagnet wires 792, similar to second rail 522 of the first embodiment as described with reference to Figs. 13 and 14.

[0096] An overview of the assembly work of the solar cell array 14 in this embodiment will be described. The solar power generation unit 30 is transported by the truck 16 to within the working radius of the first crane 51. The solar power generation unit 30 is placed on the vehicle body 611 by the first crane 51. In FIG. 22 , the solar power generation unit 30 is being placed on the transport cart 61 traveling on the first transport cart rail 551.

[0097] The transport cart 61 runs on the first transport cart rail 551 or the second transport cart rail 552. The second rail 522 moves to the upper part of the transport cart rail 55 on which the transport cart 61 runs. As explained using FIG. 10 , the solar power generation unit 30 on the right end is towed by the towing vehicle 524 running on the second rail 522. In this way, the solar power generation unit 30 is transported onto the water.

[0098] The solar power generation units 30 that are initially floated in a row on the first transport carriage rail 551 are each connected to the third rail 523 via the electromagnetic device 790. From the second time onwards, the solar power generation units 30 that are floated in a row on the first transport carriage rail 551 and the solar power generation units 30 that are floated in a row on the second transport carriage rail 552 are connected to the solar power generation units 30 that are adjacent to each other on the lower side in FIG. 22 using the connectors 37.

[0099] According to this embodiment, for example, while one transport cart 61 is traveling, the work of placing the solar power generation unit 30 on the other transport cart 61 can be carried out in parallel, so that the assembly of the solar cell array 14 can be carried out efficiently.

[0100] According to this embodiment, when there is no work of assembling the solar cell array 14, the first crane 51 can be effectively used at other construction sites or the like.

[0101] [Embodiment 4] This embodiment relates to an assembly work area 10 that does not use a transport cart 61 and a transition area 66. Explanation of parts common to the first embodiment will be omitted.

[0102] Fig. 24 is an explanatory diagram illustrating an outline of the assembly work of the solar cell array 14 according to the fourth embodiment. Fig. 25 is a view seen from the arrow XXV in Fig. 24. In this embodiment, a second crane 52 and a third crane 53 are installed in the assembly workplace 10.

[0103] The second crane 52 is a gantry crane including first rails 521 installed on the first base 581 and the second base 582, respectively, and a second rail 522 stretched between the two first rails 521. The second rail 522 is capable of traveling along the first rail 521.

[0104] Third crane 53 includes multiple crane frames 537 arranged substantially parallel to first rail 521, and first rail 531 and second rail 532 suspended from crane frames 537. The rightmost crane frame 537 is installed on second base 582. First rail 531 and second rail 532 are arranged substantially parallel to second rail 522.

[0105] 25, first rail 531 and second rail 532, which is located behind first rail 531 in FIG. 25, are located at a higher position than second rail 522. Therefore, second rail 522 can move below first rail 531 and second rail 532.

[0106] A plurality of running bodies 534 are suspended from each of first rail 531 and second rail 532. Running bodies 534 are capable of running along first rail 531 or second rail 532.

[0107] A frame 795 is suspended from each of the running bodies 534 via a frame suspension tool 794. The frame suspension tool 794 is extendable. The frame 795 moves up and down as the frame suspension tool 794 extends and contracts. A plurality of electromagnets 791 are suspended from each of the frames 795.

[0108] Returning to Figure 24, the explanation will continue. Truck 16 that has arrived at assembly workplace 10 is guided under first rail 531 or second rail 532. Guidance is performed, for example, by a traffic light or a guidance staff member. Truck 16 is an autonomous vehicle, and may travel autonomously by receiving instructions via wireless communication as to whether to travel under first rail 531 or second rail 532. When truck 16 travels autonomously, travel guidelines, illustrated by thick dashed lines on both sides of first rail 531 and second rail 532, may be used.

[0109] The explanation will continue with reference to Figure 25. The traveling body 534 travels to directly above the track 16. The frame hoisting tool 794 extends, bringing the electromagnet 791 and the magnetic body 34 close to each other. The electromagnet 791 turns on and attracts the magnetic body 34. The frame hoisting tool 794 retracts, and the solar power generation unit 30 is hoisted up by the traveling body 534.

[0110] The traveling body 534 travels toward the offshore work site 65. The traveling body 534 stops at a position where the solar power generation unit 30 is not floating directly below it. The frame hoisting device 794 extends, causing the solar power generation unit 30 to float on the water. The electromagnet 791 is turned off, and the frame hoisting device 794 rises, leaving the solar power generation unit 30 behind. As a result, the solar power generation unit 30 is moved from the truck 16 to the offshore work site 65. As a result, the third crane 53, the traveling body 534, and the electromagnet device 790 function as a towing device that transports the solar power generation unit 30 from land to the water.

[0111] For example, a worker or a work robot on a small boat connects the photovoltaic power generation units 30 carried by different frame hoists 794 with the connectors 37. The subsequent processing is the same as in the first embodiment, and therefore a description thereof will be omitted.

[0112] According to this embodiment, there is no need to lay transport carriage rails 55 on the seabed and run the transport carriages 61 thereon, so it is possible to realize an assembly workshop 10 that is easy to maintain. Since two rails, the first rail 531 and the second rail 532, are used, many trucks 16 can be operated simultaneously. Therefore, the solar cell array 14 can be assembled quickly.

[0113] [Embodiment 5] This embodiment relates to a solar power generation unit 30 including a fixture 36 to which a connector 37 is connected. Explanation of parts common to the first embodiment will be omitted.

[0114] Fig. 26 is a perspective view of a solar power generation unit 30 according to embodiment 5. Fig. 27 is a partial cross-sectional view of the solar power generation unit 30 according to embodiment 5. In Fig. 27, cross sections of the solar cell panel 31 and the float 35 are not shown. Fig. 28 is a perspective view of a mounting fixture 36.

[0115] In this embodiment, as shown in Fig. 26, two mounting fixtures 36 each having a substantially semicircular plate shape protrude from each side surface of the frame portion 33. Each mounting fixture 36 has one through-hole. For example, a hook or clevis or the like provided at the end of a connector 37 is attached to the hole in the mounting fixture 36 to connect the photovoltaic power generation units 30 together. The connector 37 may be a rope or wire without a hook or clevis or the like attached to the end, and may be tied to the mounting fixture 36.

[0116] As shown in Figure 28, the mounting fixture 36 includes a base plate 361, four legs 362 protruding from one side, and one perforated plate 363 protruding from the other side. The base plate 361 is a generally square plate. The legs 362 are generally truncated cones with thicker tips. The perforated plate 363 is a generally semicircular plate with a diameter roughly the same as the length of one side of the base plate 361, and has a through-hole.

[0117] 27, the base plate 361 and the legs 362 are embedded in the frame portion 33. The frame portion 33 is made of resin, and it is preferable that the base plate 361 and the legs 362 are insert-molded. Because the tips of the legs 362 are thick, the mounting fixture 36 is unlikely to fall off from the solar power generation unit 30 even if a strong tensile force is applied by the connector 37.

[0118] According to this embodiment, it is possible to provide a solar power generation unit 30 to which the connector 37 can be easily connected. The shape of the perforated plate 363 is not limited to a semicircular plate with through holes. Instead of the perforated plate 363, any shape that can be easily attached to and detached from the connector 37 can be used.

[0119] [Embodiment 6] This embodiment relates to a solar power generation unit 30 in which the fixture 36 is replaceable. Explanation of parts common to the fifth embodiment will be omitted.

[0120] Fig. 29 is a perspective view of a solar power generation unit 30 according to embodiment 6. Fig. 30 is a partial cross-sectional view of the solar power generation unit 30 according to embodiment 6. Fig. 31 is a perspective view of a mounting fixture 36 according to embodiment 6. As shown in Fig. 30, an insert nut 367 is insert-molded on the side surface of the frame portion 33.

[0121] 31, the fixture 36 of this embodiment has four bolt holes 364 instead of legs 362. The fixture 36 is fixed to the side of the frame part 33 with fixing bolts 365.

[0122] According to this embodiment, it is possible to provide a solar power generation unit 30 in which the mounting fixture 36 is replaceable. For example, the mounting fixture 36 can be replaced with one having an appropriate shape depending on the connector 37 to be used. Furthermore, if the mounting fixture 36 is damaged, it can be easily replaced.

[0123] [Embodiment 7] This embodiment relates to a transport system 91 used in an assembly workshop 10. Explanation of parts common to the first embodiment will be omitted.

[0124] 32 is an explanatory diagram illustrating the configuration of the transport system 91. The transport system 91 includes the first crane 51, the second crane 52, the transport cart 61, and the plurality of electromagnets 791 described above, as well as an information processing device 20, a vehicle guidance device 92, and a camera 95.

[0125] The information processing device 20 includes a control unit 21, a main memory device 22, an auxiliary memory device 23, a communication unit 24, and a bus. The control unit 21 is an arithmetic and control device that executes the program of this embodiment. The control unit 21 uses one or more central processing units (CPUs), graphics processing units (GPUs), multi-core CPUs, or the like. The control unit 21 is connected to each hardware unit that constitutes the information processing device 20 via the bus.

[0126] The main memory device 22 is a storage device such as an SRAM (Static Random Access Memory), a DRAM (Dynamic Random Access Memory), a flash memory, etc. The main memory device 22 temporarily stores information required during processing performed by the control unit 21 and programs currently being executed by the control unit 21.

[0127] The auxiliary storage device 23 is a storage device such as an SRAM, a flash memory, a hard disk, a magnetic tape, etc. The auxiliary storage device 23 stores programs to be executed by the control unit 21 and various data required for executing the programs.

[0128] The communication unit 24 is an interface for communication between the information processing device 20 and a network or other devices.

[0129] The information processing device 20 is a mainframe computer, a virtual machine running on a mainframe computer, a plurality of personal computers performing distributed processing, or a cloud computing system. The information processing device 20 may also be an information device such as a general-purpose personal computer or a tablet.

[0130] The vehicle guidance device 92 is a traffic light that guides the route of the truck 16. The vehicle guidance device 92 may be a large display, a speaker, or the like that notifies the driver of the truck 16 of the destination. The vehicle guidance device 92 may also be a headset or the like that is worn by a vehicle guide who guides the truck 16.

[0131] The cameras 95 are placed at various locations in the assembly workplace 10 and capture images of the state of the truck 16, the state of the transport cart 61, etc. The control unit 21 determines the position of the truck 16, the position of the transport cart 61, the state of the solar power generation unit 30, etc. by known image analysis processing. The camera 95 is a so-called smart camera, and may output the position of the truck 16, the position of the transport cart 61, the state of the solar power generation unit 30, etc.

[0132] Fig. 33 is a flowchart illustrating the processing flow of the program. The program in Fig. 33 is started when starting assembly of the solar cell array 14. The control unit 21 starts a launching subroutine (step S501). The launching subroutine is a subroutine that executes processing to place the solar power generation unit 30 transported by the truck 16 on the transport cart 61 and transport it to the offshore work site 65. The processing flow of the launching subroutine will be described later.

[0133] As described with reference to Figs. 11 to 13, the control unit 21 causes the second crane 52 to pull the plurality of photovoltaic power generation units 30 and move them from the transport cart rail 55 (step S502).

[0134] Specifically, the control unit 21 waits for the worker to connect the photovoltaic power generation unit 30 to the second rail 522. The control unit 21 determines that the connection work is complete based on the analysis results of an image taken by the camera 95, for example. The control unit 21 may receive a notification from the worker that the connection work is complete. The control unit 21 may control a manipulator, a robot, or the like to perform the connection work. After the connection is complete, the control unit 21 moves the second rail 522.

[0135] The control unit 21 starts the launching subroutine again (step S503). The control unit 21 waits for connection between the previously transported photovoltaic power generation unit 30 and the newly transported photovoltaic power generation unit 30 (step S504).

[0136] Specifically, the control unit 21 waits for the worker to connect the previously transported solar power generation unit 30 and the newly transported solar power generation unit 30 using the connector 37. The control unit 21 determines that the connection work is complete based on the analysis result of an image taken by the camera 95, for example. The control unit 21 may receive a notification from the worker that the connection work is complete.

[0137] The control unit 21 may control a manipulator or a robot to perform the connection work. The manipulator or the robot may receive an instruction from the control unit 21 and perform the connection work autonomously.

[0138] The control unit 21 determines whether the assembly work of the solar cell array 14 is completed (step S505). Specifically, the control unit 21 determines whether a predetermined number of solar power generation units 30 have been transported to and connected to the offshore work site 65. If it is determined that the assembly work is not completed (NO in step S505), the control unit 21 returns to step S502.

[0139] If it is determined that the process has ended (YES in step S505), the control unit 21 ends the process. Note that the control unit 21 may control the small towing vessel 561, the large towing vessel 565, and the connecting rope 567 to perform the towing work of the solar cell array 14 described using Figures 16 and 17.

[0140] 34 is a flowchart illustrating the processing flow of the launching subroutine. The control unit 21 controls the vehicle guidance device 92 to guide the truck 16 that has arrived at the assembly workplace 10 to under the first crane 51 (step S511). The control unit 21 controls the first crane 51 and the electromagnet 791 to place the solar power generation unit 30 transported by the truck 16 on the vehicle body 611 (step S512). Images captured by the camera 95 are used to align the solar power generation unit 30 with the vehicle body 611, etc.

[0141] The control unit 21 may notify the operator of the transporting cart 61 of information relating to the vehicle body 611 on which the solar power generation unit 30 is to be placed, and the operator may operate the first crane 51.

[0142] The control unit 21 determines whether or not the predetermined number of photovoltaic power generation units 30 have been placed on the transport cart 61 (step S513). If it is determined that the process has not been completed (NO in step S513), the control unit 21 returns to step S511.

[0143] If it is determined that the process has ended (YES in step S513), the control unit 21 causes the transport cart 61 to travel until the leading solar power generation unit 30 is just below the electromagnet device 790 (step S514). Specifically, the control unit 21 controls the transport cart 61 to travel. The control unit 21 may notify the operator of the transport cart 61 of permission to travel, and the operator may operate the transport cart 61.

[0144] As described with reference to Fig. 10, the control unit 21 connects the solar power generation unit 30 and the towing vehicle 524 using the electromagnetic device 790 (step S515). Specifically, the control unit 21 controls a manipulator or a robot installed near the first base 581 to connect the solar power generation unit 30 and the towing vehicle 524. The control unit 21 may notify a connection instruction to a worker waiting near the first base 581.

[0145] The control unit 21 causes the transport cart 61 and the towing vehicle 524 to travel toward the offshore work site 65 (step S516). Specifically, the control unit 21 controls the transport cart 61 to travel. The control unit 21 may notify the operator of the transport cart 61 of travel permission, and the operator may operate the transport cart 61.

[0146] The control unit 21 releases the connection between the solar power generation unit 30 and the towing vehicle 524 (step S517). Specifically, the control unit 21 controls a manipulator or a robot installed near the second base 582 to release the connection between the solar power generation unit 30 and the towing vehicle 524. The control unit 21 may notify a worker waiting near the second base 582 of the connection release instruction.

[0147] The control unit 21 returns the transport cart 61 to the ground (step S518). Specifically, the control unit 21 controls the transport cart 61 to travel to the ground. The control unit 21 may notify the operator of the transport cart 61 of travel permission, and the operator may operate the transport cart 61. Thereafter, the control unit 21 ends the processing.

[0148] According to this embodiment, it is possible to realize a transport system 91 that transports the solar power generation units 30 carried by the trucks 16 to the offshore work site 65 and automatically or semi-automatically assembles the solar cell array 14. Since a plurality of solar power generation units 30 are transported simultaneously, it is possible to realize a transport system 91 that can quickly perform assembly work.

[0149] [Embodiment 8] 35 is an explanatory diagram illustrating the configuration of a transport system 91 according to the eighth embodiment. This embodiment relates to a mode in which the transport system 91 is realized by combining and operating a general-purpose computer 90 and a program 97. Explanations of parts common to the seventh embodiment will be omitted.

[0150] The computer 90 includes a reading unit 29 in addition to the control unit 21, main memory device 22, auxiliary memory device 23, communication unit 24, and bus.

[0151] The program 97 is recorded on a portable recording medium 96. The control unit 21 reads the program 97 via the reading unit 29 and stores it in the auxiliary storage device 23. The control unit 21 may also read the program 97 stored in a semiconductor memory 98, such as a flash memory, implemented in the computer 90. Furthermore, the control unit 21 may download the program 97 from a server computer (not shown) connected via the communication unit 24 and a network (not shown), and store it in the auxiliary storage device 23.

[0152] The program 97 is installed as a control program for the computer 90, and is executed by loading it into the main storage device 22. In this way, the transfer system 91 described in the sixth embodiment is realized.

[0153] A program is an example of a program product. A computer program can be deployed to be executed on a single computer or on multiple computers that are located at one site or distributed across multiple sites and interconnected by a communications network.

[0154] The technical features (constituent elements) described in each embodiment can be combined with each other, and by combining them, new technical features can be formed. The embodiments disclosed herein are illustrative in all respects and should not be considered as limiting. The scope of the present invention is defined by the claims, not by the above meaning, and is intended to include all modifications within the meaning and scope of the claims.

[0155] Independent and dependent claims may be combined with each other in any combination, regardless of the reference format. Furthermore, while the claims are written in a format in which a claim references two or more other claims (multiple claim format), this is not a limitation. Multiple claims that reference at least one other claim (multiple multiple claim format) may also be written. [Explanation of symbols]

[0156] 10 Assembly Workshop 14 Solar array 16 tracks 20 Information processing equipment 21 Control Unit 22 Main storage 23 Auxiliary storage device 24 Communications Department 30 solar power generation units 31 Solar Panel 33 Frame 331 Position index 34 Magnetic material 35 Float 36 Mounting fixture 361 Base Plate 362 Legs 363 Perforated plate 364 bolt holes 365 Fixing bolt 367 Insert Nut 37 Connectors 51 Crane No. 1 511 First Rail 512 Second Rail 514 Running body 517 Post 518 Boom 52 Second Crane 521 First Rail 522 Second Rail 523 Third Rail 524 Towing vehicle 528 Supporting wall 529 Catwalk 53 Third Crane 531 First Rail 532 Second Rail 534 Running body 537 Crane Frame 55 Transport cart rail 551 First transport cart rail 552 Second transport cart rail 561 Small Towing Vessel 562 Towing Auxiliary Vessel 563 Auxiliary Hull 564 Hull Connector 565 Large Towing Vessel 566 Tow pole 567 Connecting Rope 571 Tow Boat 572 Towing boat connector 581 First Base 582 Second Base 583 Third Base 61 Transport cart (cart) 611 Body 612 wheels 613 Suspension 614 Support 615 Coupler 619 Driving vehicle 790 Electromagnetic device 791 Electromagnet 792 Electromagnet Wire 794 Frame Lifting Device 795 frames 796 Electromagnetic hanging tool 90 Computer 91 Transport System 92 Vehicle Guidance Device 95 Camera 96 Portable recording media 97 Programs 98 Semiconductor Memory

Claims

1. Transporting multiple solar power generation units that can float on water from land to the water, A plurality of the solar power generation units floating on water are transported simultaneously. Transportation method.

2. A plurality of the solar power generation units are placed on a carriage arranged on the ground, The cart is driven toward the water, The solar power generation unit floating on the water from the carriage is transported by a transport device. The transport method according to claim 1 .

3. The dolly includes a cushion on which the solar power generation unit is placed. The transport method according to claim 2 .

4. The floating solar power generation units are transported by a transport device that is movable in a second direction intersecting a first direction in which the solar power generation units are transported from land to water. The transport method according to claim 2 .

5. The transport device transports the solar power generation units, which are arranged in the first direction and the second direction, in the second direction. The transport method according to claim 4.

6. The solar power generation units are connected to each other with a gap between them, the transport device includes a plurality of electromagnet devices; The solar power generation unit is transported with the electromagnetic device connected to a magnetic body provided in the solar power generation unit. The transport method according to claim 4.

7. The plurality of carriages travel in parallel with each other, The solar power generation unit floating on the water is transported from the cart by a gantry crane that moves in a direction intersecting the traveling direction of the cart. The transport method according to claim 2 .

8. A transport system including a control unit, a traction device, and a transport device, The control unit causing the towing device to tow a plurality of solar power generation units capable of floating on water from the ground onto the water; The transport device is caused to simultaneously transport the plurality of solar power generation units floating on water. The transport system that performs the process.

Images