Floor construction method and flotation device

Abstract

To provide a construction method of a floor surface with which an image sensor can be easily installed, and a flotation device suitable for implementing the construction method.SOLUTION: A floor surface construction method includes: an installation step of installing a flotation device 1 having a floatation body 9 that generates buoyancy, an image sensor 10, adsorption bodies 12b which can be detachably attached to a structure 3, and a long body 15 onto the structure 3 located above a floor surface 2, the step including moving the floating flotation device 1 through the long body 15 and causing the adsorption bodies 12b to be adsorbed onto the structure 3 to install the flotation device 1; an acquisition step of acquiring image data of the floor surface 2 by means of the image sensor 10; and a determination step of determining whether correcting the floor surface 2 is required on the basis of a result of comparing the acquired image data with data on the floor surface 2 as an ideal.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a floor construction method and a levitation machine. [Background technology]

[0002] A floor construction method is known in which image data of the floor surface is acquired by an image sensor, and whether or not the floor surface needs to be corrected is determined based on the results of comparing the acquired image data with data of the target floor surface (see, for example, Patent Documents 1 to 4). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-151113 [Patent Document 2] Japanese Patent Publication No. 2020-176484 [Patent Document 3] Japanese Patent Publication No. 2020-193484 [Patent Document 4] Japanese Patent Application Publication No. 2017-181374 Summary of the Invention [Problem to be solved by the invention]

[0004] When carrying out the above-described floor construction method, it is desirable that the image sensor can be easily installed.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a floor construction method that allows easy installation of an image sensor, and a levitation machine that is suitable for carrying out the construction method. [Means for solving the problem]

[0006] The floor construction method of the present invention includes an installation step of installing a flotation device on a structure located above the floor surface, the flotation device having a floating body that generates buoyancy, an image sensor, an adhesive body that can be attached and detached to the structure, and a long body, by moving the flotation device in a floating state by operating it via the long body and adsorbing the adhesive body to the structure, an acquisition step of acquiring image data of the floor surface using the image sensor, and a judgment step of determining whether or not the floor surface needs to be modified based on the results of comparing the acquired image data with data of the target floor surface.

[0007] In the floor construction method of the present invention, in the above configuration, the structure is preferably a ceiling.

[0008] In the floor construction method of the present invention, in the above configuration, it is preferable that the attracting body is made of an electromagnet and the structure is made of a magnetic material.

[0009] In the floor construction method of the present invention, in the above configuration, the floating body is preferably a balloon.

[0010] In the floor construction method of the present invention, in the above configuration, it is preferable that the floating body is formed by a propeller, and the floating machine has a buffer member below the propeller.

[0011] In the above-mentioned configuration, the floor construction method of the present invention preferably includes a projection step in which an image showing the distribution of the height difference of the floor surface relative to the target is projected onto the floor surface by a projector carried by the levitation machine by comparing the acquired image data with data of the target floor surface, and the judgment step preferably includes an image confirmation step in which it is judged whether or not the floor surface needs to be corrected based on the image projected onto the floor surface.

[0012] The flotation device of the present invention has a flotation body that generates buoyancy, an image sensor, an attachment body that can be attached to and detached from a structure, and a long body that can be towed. The floating body is composed of a balloon, and moves in a floating state by operation via the elongated body. It is a flotation device. [Effects of the Invention]

[0013] According to the present invention, it is possible to provide a floor construction method that makes it easy to install an image sensor, and a levitation machine that is suitable for implementing the construction method. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a side view showing a state at the start of an installation step in a floor construction method according to an embodiment of the present invention. [Figure 2] 2 is a perspective view showing a state at the start of the installation step shown in FIG. 1. FIG. [Figure 3] 3 is a perspective view showing the state when the levitation device is moved from the state shown in FIG. 2 and adsorbed to the ceiling. [Figure 4] FIG. 4 is a perspective view showing the state when the telescopic rod is extended from the state shown in FIG. 3 and the installation of the levitation device is completed. [Figure 5] 5 is a side view showing a projection step carried out from the state shown in FIG. 4 through an acquisition step. [Figure 6] 6 is a top view showing an image projected onto the floor surface by the projection step shown in FIG. 5. FIG. [Figure 7] FIG. 6 is a perspective view showing a modified example of the levitation device shown in FIGS. 1 to 5. [Figure 8] FIG. 8 is a perspective view showing an installation step using the levitation machine shown in FIG. 7. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0016] As shown in Figures 1 to 6, a floor construction method according to one embodiment of the present invention is carried out indoors in a building using a levitation machine 1 according to one embodiment of the present invention. The building has a floor 2 and a ceiling 4 as a structure 3 located above the floor 2. The floor 2 is made of a surface of concrete 8. After the concrete 8 is poured, the surface of the concrete 8 that forms the floor 2 usually requires multiple leveling and correction operations to achieve the target levelness or inclination as designed. According to this embodiment, by using the levitation machine 1, it is possible to easily determine whether or not this leveling and correction operation is necessary and to easily perform the leveling and correction operation as needed.

[0017] As shown in Figure 5, the ceiling 4 is made up of a framework 5 and a steel deck 6. In other words, the underside of the ceiling 4 is made of a magnetic material. The floor 7 is made up of concrete 8 poured on top of the framework 5 and the steel deck 6.

[0018] As shown in Figures 1 and 2, the levitation device 1 has a float 9, an image sensor 10, a projector 11, a suction device 12, a control device 13, a body 14, a long body 15, an antenna 16, and an operation device 17. The float 9, the image sensor 10, the projector 11, the suction device 12, the control device 13, one end of the long body 15, and the antenna 16 are held by the body 14. The other end of the long body 15 is connected to the operation device 17. The operation device 17 has a built-in power source such as a battery. In this embodiment, the long body 15 is a flexible electric wire that is responsible for power supply and communication.

[0019] In this embodiment, the float 9 is a balloon. The gas put into the balloon is not particularly limited as long as it is lighter than air, and is, for example, helium. The float 9 generates buoyancy by the gas inside it, which constantly raises the levitation device 1. By using a balloon as the float 9, the risk of a sudden fall can be reduced, allowing for safe operation.

[0020] The image sensor 10 is a camera that captures an image of the floor surface 2 to acquire image data of the floor surface 2. Note that the image sensor 10 is not limited to a camera, and may be configured as, for example, a 3D scanner.

[0021] The projector 11 can project and display an image instructed by the control device 13 onto the floor surface 2. The type of the projector 11 is not particularly limited, and may be, for example, a liquid crystal projector, a CRT projector, a DLP projector, or the like.

[0022] The attraction device 12 is composed of telescopic rods 12a extending upward from the body 14 at four points surrounding the levitation body 9, and electromagnets serving as attraction bodies 12b connected to the tip (upper end) of each telescopic rod 12a. The telescopic rods 12a can be extended and retracted by a control device 13 via a drive mechanism (not shown). The power to the electromagnets is turned on and off by the control device 13.

[0023] The body 14 has a rigidity sufficient to hold the levitation body 9, the image sensor 10, the projector 11, the suction device 12, the control device 13, one end of the elongated body 15, and the antenna 16. The shape and material of the body 14 are not particularly limited.

[0024] The control device 13 is composed of a computer, and is connected by wire or wirelessly to the image sensor 10, the projector 11, and the suction machine 12. The control device 13 is also connected to an operation device 17 via a long body 15 (electric wire), and controls the image sensor 10, the projector 11, and the suction machine 12 in response to inputs to the operation device 17 by an operator.

[0025] The operation device 17 has an operation unit (not shown) that receives input operations. The type of the operation unit is not particularly limited, and may be a button type, a dial type, a joystick type, or any combination thereof.

[0026] In this embodiment, the height and direction of the levitation device 1 can be easily changed and the device can be moved horizontally by the operator holding and pulling the electric wire serving as the long member, so the operation for moving the levitation body 9 can be left to the pulling operation as described above, and the other input operations for the image sensor 10, projector 11 and suction device 12 can be performed by the operation unit of the operation device 17. Therefore, the configuration of the operation unit can be simplified and skilled operation skills are not required.

[0027] The control device 13 is connected to an antenna 16, and can communicate wirelessly with a base station 18 via the antenna 16. The base station 18 is installed in a framework 5 that constitutes the ceiling 4. The installation location of the base station 18 is not limited to this, and it may be installed in another structure 3. It is also possible to use a base station 18 installed outside the building. The base station 18 is connected to an information processing system that links with a BIM (Building Information Modeling) model, which adds data such as management information to 3D model data of a building. The information processing system can perform image processing, etc.

[0028] The shape of the antenna 16 is not particularly limited, and it may be configured to be built into the control device 13, for example.

[0029] In the floor construction method according to this embodiment, an installation step, an acquisition step, a projection step, and a determination step are performed in this order after pouring the concrete 8 that forms the floor 2. The installation step may be performed before pouring the concrete 8 that forms the floor 2.

[0030] The installation step is a step in which the levitation device 1 in a floating state is moved to the ceiling 4, which is a structure 3 located above the floor surface 2, by operating it via the long body 15, and the levitation device 1 is installed by adsorbing the adsorption body 12b to the ceiling 4.

[0031] In the installation step, first, a worker moves while holding the operating device 17 and the elongated body 15, and operates the elongated body 15 to move the levitation device 1 to an appropriate position near the ceiling 4. After that, when the worker turns on the power to the electromagnet via the operating device 17, the electromagnet is attracted to the underside of the ceiling 4 by its attractive force, as shown in Figure 3.

[0032] Furthermore, when the electromagnet is operated, the control device 13 detects the position and orientation of the levitation device 1. This detection means is not particularly limited, and for example, a configuration may be adopted in which a GPS receiver is provided in the levitation device 1, and the position and orientation of the levitation device 1 is detected by the GPS receiver via the base station 18. Alternatively, a configuration may be adopted in which the image sensor 10 acquires images of the floor surface 2 and surrounding structures 3, and sends them to an information processing system to calculate the position and orientation of the levitation device 1.

[0033] When the control device 13 detects the position and orientation of the levitation device 1, it adjusts the length of the telescopic rod 12a so that the image sensor 10 and the projector 11 are at an appropriate height, as shown in FIG.

[0034] The acquisition step is a step of acquiring image data of the floor surface 2 by the image sensor 10. The image sensor 10 captures an image of the floor surface 2 that has actually been formed, and acquires the image data.

[0035] The projection step is a step in which, by comparing the acquired image data with the data of the target floor surface 2, the projector 11 projects onto the floor surface 2 an image showing the distribution of the height difference of the floor surface 2 relative to the target, as shown in FIGS. 5 and 6. For example, areas where the height difference relative to the target is within the allowable range are shown in green, areas that are too high are shown in red (the color intensity is appropriately differentiated according to height), and areas that are too low are shown in blue (the color intensity is appropriately differentiated according to height). In FIG. 6, green areas are shown with dotted shading, red areas are shown with diagonal lines, and blue areas are shown with cross-hatching. In this way, the distribution of the height difference of the floor surface 2 relative to the target can be shown by color coding. Note that a configuration other than color coding may also be used. The information processing system compares the acquired image data with the data of the target floor surface 2, generates image data, and transmits it to the control device 13.

[0036] The judgment step is a step in which the worker judges whether or not correction of the floor surface 2 is necessary based on the comparison result between the acquired image data and the data of the target floor surface 2. In this embodiment, the judgment step is an image confirmation step.

[0037] The image confirmation step is a step in which the worker determines whether or not corrections to the floor surface 2 are necessary based on the image projected onto the floor surface 2. The worker can determine whether or not corrections to the floor surface 2 are necessary and how to correct them just by looking at the color-coded floor surface 2 at a glance. The worker then carries out the appropriate correction work on the floor surface 2 based on that determination.

[0038] As described above, in this embodiment, by using a flotation device 1 having a towable elongated body 15, construction of the floor surface 2 can be carried out by a general worker who does not have skilled operating techniques. Furthermore, by using it indoors with a ceiling 4, there is no need to consider the effect of wind on the flotation device 1, and therefore it can be carried out with a flotation device 1 of simple configuration. Furthermore, by carrying out the work indoors, it is possible to simplify the notification and flight plan.

[0039] In this embodiment, the attractor 12 has an electromagnet, but the attractor 12b is not limited to an electromagnet and may be, for example, a permanent magnet. When a permanent magnet is used as the attractor 12b, the attractor 12 may be configured, for example, to have a cylindrical member extending in the vertical direction and a permanent magnet that can be protruded upward from the cylindrical member or retracted into the cylindrical member by a driving device. Furthermore, the attractor 12b is not limited to a magnet and may be configured by a vacuum device. Furthermore, the attractor 12 is not limited to a configuration having an extendable rod 12a.

[0040] In this embodiment, the float 9 is a balloon, but as in the modified example shown in Figures 7 and 8, the float 9 may be a propeller, and the floatation device 1 may have a buffer member 19 below the propeller. When the propeller is turned on by input to the operating device 17, it generates buoyancy that constantly raises the floatation device 1. The interference member is, for example, a doughnut-shaped elastic hollow body, and also functions as the body 14. The buffer member 19 can increase safety in the unlikely event that the floatation device 1 falls due to a malfunction of the propeller, etc. Note that the configuration may not include an interference member.

[0041] Furthermore, the flotation device 1 of this modified example has a rod body with an electric wire inside as the long body 15. Therefore, an operator can hold the operating device 17 and the long body 15 and pull or push the long body 15, thereby instantly moving the flotation device 1 via the long body 15. Note that, in this modified example, a flexible electric wire may also be used as the long body 15. Furthermore, instead of the electric wire as the long body 15 in the above embodiment, a rod body with an electric wire inside may also be used.

[0042] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and scope of the present invention.

[0043] Therefore, the floor construction method of the above-mentioned embodiment can be modified as long as it is a method that includes an installation step of installing a flotation device 1 having a buoyancy-generating float 9, an image sensor 10, an adhesive body 12b that can be attached and detached to the structure 3, and a long body 15 on a structure 3 located above the floor surface 2, in which the flotation device 1 in a floating state is moved by operating the long body 15 and the adhesive body 12b is attached to the structure 3, thereby installing the flotation device 1; an acquisition step of acquiring image data of the floor surface 2 using the image sensor 10; and a judgment step of determining whether or not correction of the floor surface 2 is necessary based on the results of comparing the acquired image data with the data of the target floor surface 2.

[0044] For example, the floor construction method of the above-described embodiment may include, instead of the projection step, a display step of displaying an image showing the distribution of the elevation difference of the floor surface 2 relative to the target on a mobile device such as a tablet, laptop, or smartphone, or a wearable device such as goggles. In this case, the determination step may include a terminal image confirmation step of determining whether or not correction of the floor surface 2 is necessary based on the image displayed on the terminal. Furthermore, the levitation device 1 is not limited to a configuration including a projector 11. The number of adhesive bodies 12b provided on the levitation device 1 is not limited to four and can be set appropriately. The adhesive bodies 12b are not limited to the ceiling 4, but may be configured to be detachable from, for example, the side walls of the structure 3. The ceiling 4 is not limited to a structure composed of a framework 5 and a steel deck 6. The floor construction method of the above-described embodiment is not limited to a method of constructing an indoor floor surface 2 of a building. The steps performed by a worker in the above-described embodiment may be performed by a robot.

[0045] Furthermore, the comparison result between the acquired image data used in the judgment step and the data of the target floor surface 2 is not limited to the distribution state of the height difference of the floor surface 2 relative to the target, but may also be, for example, the comparison result between data of a mark formed on the floor surface 2 by marking work included in the acquired image data and data of a mark on the target floor surface 2. In other words, whether or not correction of the floor surface 2 is necessary, which is judged in the judgment step, is not limited to whether or not correction of the height of the floor surface 2 is necessary, but may also be whether or not correction of the mark on the floor surface 2 is necessary.

[0046] It should be noted that the construction method for the floor surface in the above-described embodiment is preferably a method in which the structure 3 constitutes the ceiling 4 in the above configuration.

[0047] The construction method for the floor surface of the above-described embodiment is preferably a method in which, in the above configuration, the attracting body 12b is made of an electromagnet and the structure 3 is made of a magnetic material.

[0048] The construction method for the floor surface of the above-described embodiment is preferably a method in which the floating body 9 is formed from a balloon in the above configuration.

[0049] The construction method of the floor surface of the above-described embodiment is preferably a method in which, in the above configuration, the float body 9 is configured by a propeller, and the float machine 1 has a buffer member 19 below the propeller.

[0050] The floor construction method of the above-mentioned embodiment preferably has a projection step in which, in the above configuration, the acquired image data is compared with data on the target floor surface 2, and an image showing the distribution of the height difference of the floor surface 2 relative to the target is projected onto the floor surface 2 by the projector 11 possessed by the levitation machine 1, and the judgment step preferably has an image confirmation step in which it is judged whether or not correction of the floor surface 2 is necessary based on the image projected onto the floor surface 2.

[0051] The levitation device 1 used in the above-described embodiment is preferably a levitation device having a levitation body 9 that generates buoyancy, an image sensor 10, an adhesive body 12b that can be attached and detached to the structure 3, and a long body that can be towed. [Explanation of symbols]

[0052] 1. Flotation device 2 Floor 3 Structures 4. Ceiling 5. Framework 6 Steel deck 7 beds 8. Concrete 9 Floating body 10 Image Sensor 11 Projector 12 Adsorption machine 12a Telescopic rod 12b Adsorbent 13 Control device 14 Body 15 Long body 16 Antenna 17 Operating device 18 base station 19. Cushioning material

Claims

1. an installation step of installing a levitation device on a structure located above a floor surface, the levitation device having a buoyant body that generates buoyancy, an image sensor, an adhesive body that can be attached to and detached from the structure, and a long body, by moving the levitation device in a floating state by operating the long body and adsorbing the adhesive body to the structure; an acquisition step of acquiring image data of the floor surface by the image sensor; and a judgment step of judging whether or not the floor surface needs to be corrected based on a comparison result between the acquired image data and target floor surface data.

2. The method of claim 1 , wherein the structure comprises a ceiling.

3. The method according to claim 1 or 2, wherein the attracting body is an electromagnet and the structure is a magnetic material.

4. The method according to any one of claims 1 to 3, wherein the buoyant body comprises a balloon.

5. The method according to any one of claims 1 to 3, wherein the float comprises a propeller, and the float has a buffer member below the propeller.

6. a projection step of projecting an image showing the distribution of height differences of the floor surface relative to the target by a projector included in the levitation device onto the floor surface by comparing the acquired image data with data of the target floor surface; The method according to any one of claims 1 to 5, wherein the determining step includes an image checking step of determining whether or not the floor surface needs to be corrected based on the image projected onto the floor surface.

7. A levitation device having a floating body that generates buoyancy, an image sensor, an adhesive body that can be attached and detached to a structure, and a long body that can be towed, wherein the floating body is composed of a balloon, and the device moves while floating by operation via the long body.

Images