Casting surface measurement system and casting surface measurement method

Abstract

To provide a casting surface measuring system and a casting surface measuring method that can efficiently measure the flatness of a casting surface of a floor structure of a building.SOLUTION: A casting surface measuring system includes an irradiation unit 21 that emits laser light; and measuring units (control unit 27 and control unit 42) capable of measuring the flatness of a casting surface 2a of concrete 4 of a floor structure (slab 2) of a building under construction using the laser beam emitted by the irradiation unit 21. The measuring units (control unit 27 and control unit 42) are capable of measuring the flatness of any region (first casting area A) of the entire casting surface 2a.SELECTED DRAWING: Figure 1

Description

Technical Field

[0007] ,

[0001] The present invention relates to a placement surface measurement system and a placement surface measurement method for a floor structure of a building.

Background Art

[0002] Conventionally, a device for measuring the flatness of a floor structure such as a concrete slab has been known. For example, it is as described in Patent Document 1.

[0003] Patent Document 1 describes a shape measurement device capable of measuring the uneven shape of the surface of a concrete slab during construction using a 3D laser scanner.

[0004] Here, it is considered that a slab during construction includes a portion where the placement of concrete has been completed and a portion where concrete has not yet been placed.

[0005] During the construction of such a slab, when sequentially measuring the surface of the portion where the placement of concrete has been completed using the above-described shape measurement device, for example, it is assumed that scanning will be performed up to portions where measurement is unnecessary, such as a portion where concrete has not been placed or a portion where measurement has already been performed. In this case, it is considered that it takes time to measure the surface of the slab and it is difficult to perform measurement efficiently.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] This invention was made in view of the above circumstances, and the problem it aims to solve is to provide a concrete casting surface measurement system and a concrete casting surface measurement method that can efficiently measure the flatness of the concrete casting surface of a building's floor structure. [Means for solving the problem]

[0008] The problems that this invention aims to solve are as described above, and the means for solving these problems will now be explained.

[0009] That is, in claim 1, an irradiation unit that irradiates laser light, and a measuring unit that can measure the flatness of the concrete pouring surface of a building floor structure under construction using the laser light irradiated by the irradiation unit, A division area setting unit that allows setting division areas by dividing the casting surface into multiple regions, The measuring unit comprises the entire surface of the casting surface. The system can measure the flatness of the divided regions, acquire information on the construction plan and the construction schedule of the floor structure, and set the region to be measured from among the multiple divided regions based on the acquired information. It is.

[0010] This invention is for measuring the cast surface of floor structures of "buildings". In this specification, "building" refers to a structure fixed to the land that has a roof, columns, and walls, and does not include structures fixed to the land that do not have any one of the roof, columns, or walls, such as "bridges, roads, tunnels, railways (including outdoor platforms), underground structures, sluice gates, steel towers, slope protection works, revetments, and dams". In other words, the "cast surface" measured in this invention does not include the cast surface of floor structures other than "buildings", such as the cast surface of the floor structures of the aforementioned "bridges, roads, tunnels, railways (including outdoor platforms), underground structures, sluice gates, steel towers, slope protection works, revetments, and dams".

[0013] Claim 2 In this configuration, each of the divided regions is equipped with a display unit capable of displaying the measurement results of the flatness of the cast surface.

[0014] Claim 3 In this configuration, the irradiation unit and the measurement unit are equipped with remotely controllable operating units. [Effects of the Invention]

[0016] As an effect of the present invention, the following effects are achieved.

[0017] In claim 1, the flatness of the placement surface of the floor structure of the building can be efficiently measured.

[0020] Claim 2 In, for each divided area, the measurement result of the flatness can be visually recognized.

[0021] Claim 3 In, even if not at the site where the concrete is placed, the flatness of the placement surface can be managed.

Brief Description of the Drawings

[0023] [Figure 1] A side view showing a placement surface measurement system and a building according to an embodiment of the present invention. [Figure 2] A plan view showing the state of measuring the placement surface by a surveying instrument. [Figure 3] (a) A front view showing a surveying instrument. (b) A block diagram showing the surveying instrument and a control device. [Figure 4] A flowchart showing the flatness measurement process. [Figure 5] (a) A schematic diagram showing the placement surface meshed in the elevation acquisition process. (b) A schematic diagram showing the state of the flatness calculation process.

Modes for Carrying Out the Invention

[0024] Hereinafter, with reference to FIGS. 1 to 5, a placement surface measurement system 10 and a building 1 according to an embodiment of the present invention will be described. In the following description, the vertical direction, the horizontal direction, and the front-rear direction are defined according to the arrows shown in the drawings.

[0025] The placement surface measurement system 10 can execute measurement of the flatness of the placement surface 2a of the slab 2 in the building 1 under construction shown in FIG. 1. First, the building 1 will be described below.

[0026] Building 1 is composed of a steel frame structure. Building 1 includes a slab 2 that constitutes the floor of a predetermined floor. The slab 2 is formed of reinforced concrete. Specifically, the slab 2 is formed by placing concrete 4 into a formwork (not shown) in which reinforcing bars 3 are arranged. When the placed concrete 4 hardens (when the curing period of the concrete 4 has elapsed), the formation of the slab 2 is completed.

[0027] Also, Building 1 includes steel columns 5. The steel columns 5, together with steel beams (not shown), constitute the framework of Building Ⅰ. The steel columns 5 are formed of H-shaped steel.

[0028] In FIG. 1, Building 1 in the process of placing the concrete 4 that forms the slab 2 (concrete placing process) is shown. More specifically, FIG. 1 shows the state after the placement of the concrete 4 that forms the slab 2 and before the concrete 4 hardens. The concrete 4 is placed so that the placement surface 2a (upper surface) reaches a desired height. Also, the concrete 4 is finished so that the surface (placement surface 2a) is generally uniform.

[0029] In this embodiment, a predetermined floor that is the placement target of the concrete 4 is divided into a plurality of areas, and the concrete 4 is placed for each of the above areas. Specifically, in this embodiment, the placement target of the concrete 4 is divided into four areas (regions): a first placement area A, a second placement area B, a third placement area C, and a fourth placement area D shown in FIG. 2.

[0030] As shown in FIG. 2, the first placement area A is the area of the left-rear part of the entire placement target of the concrete 4. The second placement area B is the area located to the right of the first placement area A. The third placement area C is the area located in front of the first placement area A and the second placement area B. The fourth placement area D is the area located in front of the third placement area C.

[0031] In this embodiment, the range (shape and size) of each concrete placement area is determined based on the construction plan (schedule) of building 1 (slab 2). The construction plan for building 1 includes information about the formation of slab 2, such as the shape of building 1 (location of roof and beams, etc.), the locations and amount of concrete 4 to be placed, and the date, time, and order (timing) of placement. The concrete placement area may be an area where work for one day is carried out, or it may be multiple areas obtained by dividing an area where work for one day is carried out according to a predetermined order of placement.

[0032] Each of the above areas is set in advance (for example, by the day before the concrete pouring process). In the concrete pouring process according to this embodiment, concrete 4 is poured in the order of first pouring area A, second pouring area B, third pouring area C, and fourth pouring area D. Figure 2 shows the state in which concrete 4 has been poured and the pouring surface 2a has been finished in the first pouring area A, and concrete 4 has not yet been poured in the other pouring areas. In this state, the reinforcing bars 3 are exposed in the other pouring areas (second pouring area B, third pouring area C, and fourth pouring area D).

[0033] Next, we will explain the details of the concrete casting surface measurement system 10 using Figures 1 to 3.

[0034] The concrete casting surface measurement system 10 measures the flatness of the concrete casting surface 2a of the slab 2 and displays the measurement results. The concrete casting surface measurement system 10 comprises surveying equipment 20, a stand 30, and a control device 40.

[0035] The surveying instrument 20 shown in Figures 1 to 3 is capable of measuring the flatness of the concrete casting surface 2a using laser light. The surveying instrument 20 is attached to the steel column 5 via a frame 30, which will be described later. The surveying instrument 20 comprises an irradiation unit 21, a swivel unit 22, a base unit 23, an input unit 24, a display unit 25, a memory unit 26, a control unit 27, and a communication unit 28.

[0036] The irradiation unit 21 is the part that emits laser light. The irradiation unit 21 also detects the laser light reflected from the measurement target (casting surface 2a). As shown in Figures 1 and 2, the irradiation unit 21 irradiates the casting surface 2a with a large amount of laser light and detects the reflected laser light to acquire data (hereinafter referred to as "point cloud data") including the distance to a large number of measurement target points, as well as the coordinates and elevation (height) of the measurement target points. The irradiation unit 21 can acquire point cloud data for a predetermined range area (for example, any casting area determined by the measurer) in a single measurement.

[0037] The swivel section 22 supports the irradiation section 21 so that its orientation can be changed. The swivel section 22 is formed to allow the irradiation section 21 to rotate around an axis that faces vertically. The swivel section 22 is also formed to allow the irradiation section 21 to rotate around an axis that faces horizontally. By rotating the irradiation section 21 using the swivel section 22, the direction of the laser beam can be changed. The swivel section 22 can rotate the irradiation section 21 by the operator's hand (manually). The swivel section 22 can also rotate the irradiation section 21 automatically using a motor or other power source.

[0038] The base section 23 constitutes the lower part of the surveying instrument 20. A swivel section 22 is provided on the upper part of the base section 23. The base section 23 is attached to a frame 30, which will be described later. The base section 23 is provided with an angle adjustment section that allows adjustment of the angle of the surveying instrument 20 relative to the frame 30.

[0039] The input unit 24 is for inputting various types of information. The input unit 24 is located on the base unit 23. The input unit 24 consists of multiple buttons. The operator can use the input unit 24 to perform various operations on the surveying equipment 20 (for example, turning the surveying equipment 20 on and off, and operating the illumination unit 21 and the swivel unit 22).

[0040] The display unit 25 displays various types of information. The display unit 25 is composed of, for example, a liquid crystal display. The display unit 25 is provided on the base unit 23. The display unit 25 displays information for operating the surveying equipment 20.

[0041] In this embodiment, an operation panel with an input unit 24 and a display unit 25 arranged side by side is provided on the base unit 23. The operation panel is provided on the front and rear surfaces of the base unit 23, respectively. This allows the surveyor to operate the surveying equipment 20 from either the front or the rear.

[0042] The memory unit 26 stores various programs and acquired information such as point cloud data. The memory unit 26 is composed of RAM, ROM, etc. In addition, the memory unit 26 stores data on the construction plan of building 1 and drawing data of building 1. The drawing data includes a plan view of slab 2.

[0043] The control unit 27 executes the program stored in the memory unit 26. The control unit 27 is composed of a CPU.

[0044] The communication unit 28 is capable of communicating with external devices such as the control device 40, which will be described later. The communication unit 28 can exchange information with external devices via various communication means, such as the Internet.

[0045] The mounting frame 30 is attached to the steel column 5 and supports the surveying equipment 20. The mounting frame 30 is equipped with a fixing part 31 and a mounting part 32.

[0046] The fixing portion 31 is the part that is fixed to the steel column 5. The fixing portion 31 is formed so that it can be fixed to the steel column 5 by clamping the flange of the steel column 5. The configuration of the fixing portion 31 is not limited to the above-described embodiment, and various configurations that can be fixed to the steel column 5 can be adopted.

[0047] The mounting portion 32 is the part that supports the surveying instrument 20. The mounting portion 32 is formed to extend forward from the fixing portion 31. The base portion 23 of the surveying instrument 20 is detachably attached to the upper part of the mounting portion 32.

[0048] The control device 40 is capable of processing various types of information. The control device 40 is installed, for example, in the facility (e.g., office, etc.) of the manager who manages the construction of building 1. A general-purpose personal computer can be used as the control device 40. The control device 40 comprises a storage unit 41, a control unit 42, a communication unit 43, an input unit 44, and a display unit 45.

[0049] The memory unit 41 stores various programs and various acquired information. The memory unit 41 is composed of RAM, ROM, etc.

[0050] The control unit 42 executes the program stored in the memory unit 41. The control unit 42 is composed of a CPU.

[0051] The communication unit 43 is capable of communicating with external devices such as the surveying equipment 20. The communication unit 43 can exchange information with external devices via various communication means, such as the internet.

[0052] The input unit 44 is for inputting various types of information. The input unit 44 consists of a keyboard, mouse, etc.

[0053] The display unit 45 displays various types of information. The display unit 45 is composed of, for example, a liquid crystal display.

[0054] The control device 40 (control unit 42) can acquire data (point cloud data, etc.) acquired by the surveying instrument 20 by communicating with the surveying instrument 20. Furthermore, the control device 40 can remotely operate the surveying instrument 20 by communicating with it (e.g., wireless communication). Specifically, the surveyor can perform various operations on the surveying instrument 20 that are executable at the input unit 24 (e.g., turning the surveying instrument 20 on and off, and operating the illumination unit 21 and the rotation unit 22) by using the input unit 44. Communication between the control device 40 and the surveying instrument 20 can be performed using an appropriate access point.

[0055] The concrete casting surface measurement system 10 described above is capable of performing a flatness measurement process to measure the flatness of the concrete casting surface 2a of the slab 2. Here, flatness refers to the degree of unevenness (variation in height (elevation)) of the concrete casting surface 2a. Flatness is indicated by how far the height (elevation) of the concrete casting surface 2a deviates from a predetermined reference value. Below, we will first explain the steps that the measurer takes before performing the flatness measurement process.

[0056] First, the surveyor sets up the surveying equipment 20 in a position where it can measure the concrete pouring surface 2a. Specifically, the surveyor attaches the surveying equipment 20 to the steel column 5 via the stand 30. The surveying equipment 20 is positioned in a location where it can measure all of the concrete pouring surfaces 2a in all of the concrete pouring areas shown in Figure 2 (first concrete pouring area A, second concrete pouring area B, third concrete pouring area C, and fourth concrete pouring area D). If the surveying equipment 20 is set up at a relatively high position, the laser beam can be projected over a wide area. The height at which the surveying equipment 20 is set up can be higher than the height of a typical tripod used for surveying equipment (for example, a height of 2m or more above the concrete pouring surface 2a). The installation of the surveying equipment 20 is carried out before the concrete 4 of the slab 2 is poured (for example, the day before the concrete 4 is poured).

[0057] Furthermore, the measurer instructs the control unit 27 to acquire the location where the surveying instrument 20 is installed. The installation location of the surveying instrument 20 is acquired using prisms that are positioned at two pre-set reference points and are capable of reflecting the laser light from the irradiation unit 21. These prisms are positioned, for example, outside the area where the concrete 4 is poured.

[0058] The acquisition of the installation location is triggered by an operation performed by the measurer. Here, the operation for acquiring the installation location, as well as the operation of the following surveying equipment 20 (operations for flatness measurement processing, etc.), are performed remotely using the input unit 44 of the control device 40.

[0059] When acquiring the installation position, the surveying instrument 20 (control unit 27) irradiates the prism with laser light from the irradiation unit 21 and acquires data on the distance to the reference point, the horizontal angle, and the vertical angle. The control unit 27 uses the above data on the distance to the reference point, the horizontal angle, and the vertical angle, along with drawing data including the position (coordinates) of the reference point, to acquire the installation position of the surveying instrument 20. At this time, the surveyor can remotely operate the swivel unit 22 to direct the direction of the irradiation unit 21 toward the prism. The acquisition of the above installation position is performed, for example, on the day the concrete 4 is to be poured, but before the concrete 4 is poured.

[0060] Next, the details of the flatness measurement process will be explained. The flatness measurement process is a process that measures the flatness of the concrete placement surface 2a using point cloud data. The flatness of the concrete placement surface 2a is measured for each concrete placement area (first concrete placement area A, second concrete placement area B, third concrete placement area C, and fourth concrete placement area D) shown in Figure 2. The flatness measurement process is performed after the concrete placement 4 in the area to be measured has been completed and the surface of the concrete 4 (concrete placement surface 2a) has been finished to be approximately uniform, but before the concrete 4 has hardened.

[0061] As shown in Figure 4, the flatness measurement process includes a concrete pouring area setting process S10, a point cloud data acquisition process S11, an elevation acquisition process S12, a flatness calculation process S13, and a measurement result display process S14.

[0062] The concrete placement area setting process S10 is a process in which the control device 40 (control unit 42) sets the concrete placement area to be measured for flatness. Here, the storage unit 41 has data for each concrete placement area (first concrete placement area A, second concrete placement area B, third concrete placement area C, and fourth concrete placement area D) stored in advance (data indicating the positional information of how the concrete placement target 4 is divided). The data for each concrete placement area is stored in association with the construction plan data for the building 1. The storage of the above data can be done using the control device 40.

[0063] In the concrete pouring area setting process S10, the control unit 42 sets a concrete pouring area selected from among the concrete pouring areas stored in the memory unit 41 as the concrete pouring area to be measured. This selection can be performed by the operator (remote operation using the input unit 44).

[0064] Furthermore, instead of manual operation by the operator, the pouring area can also be set by having the control unit 42 automatically set the pouring area to be measured. In this case, for example, the control unit 42 can be instructed to set the pouring area to be measured from among the pouring areas based on the date and time of the work and the construction plan data. In the following explanation, we will use an example in which the first pouring area A is set as the pouring area to be measured.

[0065] The point cloud data acquisition process S11 is the process of acquiring point cloud data of the concrete pouring area (first concrete pouring area A) acquired in the concrete pouring area setting process S10. The point cloud data acquisition process S11 is executed in response to an operation by the measurer (remote operation using the input unit 44). In the point cloud data acquisition process S11, the control unit 27 irradiates the first concrete pouring area A with laser light from the irradiation unit 21 and acquires point cloud data. The point cloud data is then transmitted to the control device 40 (control unit 42).

[0066] The elevation acquisition process S12 is a process that acquires the height (elevation) of the concrete casting surface 2a of the first concrete casting area A based on point cloud data. In the elevation acquisition process S12, the control unit 42 acquires the height of the center coordinate of each mesh formed by dividing the concrete casting surface 2a of the first concrete casting area A into a mesh (grid) as shown in Figure 5(a). The size of the mesh can be set to various values.

[0067] Specifically, the control unit 42 acquires the coordinate and elevation (height) data of the point cloud within the first pouring area A included in the acquired point cloud data. The control unit 42 recalculates the center coordinate from the triangle (TIN) containing the center of the mesh in the point cloud data, and acquires the derived coordinate as the elevation (height) of the mesh center coordinate. Here, the "elevation of the mesh center coordinate" is indicated by how far it is from a pre-set design value that indicates the elevation of the slab 2. The elevation of the mesh center coordinate is indicated by a positive value if it is higher than the design value, and by a negative value if it is lower. For example, if the elevation of the mesh center coordinate is 1 mm higher than the design value, the elevation of the center coordinate is indicated as "1".

[0068] The flatness calculation process S13 is a process that calculates the flatness of the concrete casting surface 2a of the first concrete casting area A based on the elevation of the center coordinates of the mesh. In the flatness calculation process S13, the control unit 42 calculates the flatness of the mesh to be measured as the difference between the elevation of the center coordinates of an arbitrary mesh to be measured and the reference elevation (reference height). The flatness of the above mesh is indicated by a positive value if it is higher than the reference height, and a negative value if it is lower.

[0069] In this embodiment, the reference height is the average of the elevations of the center coordinates of two meshes located on either side of the mesh to be measured (for example, to the left and right). In other words, the reference height is the height at the center coordinate of the mesh to be measured of the straight line connecting the elevations of the center coordinates of the two meshes. Figure 5(b) schematically shows the calculation result of the flatness calculation process S13.

[0070] As shown in Figure 5(b), if the elevation of the center coordinate of a mesh in the left-right direction is 3, and the elevations of the center coordinates of the two adjacent meshes are 1 and 3 respectively, then the reference height is 2. Therefore, the flatness of the central mesh is shown as 1 (+1). Note that, as shown in Figure 5(b), for meshes located at the edges, flatness is not calculated because there are no adjacent meshes. In the example above, the reference height was calculated using the center coordinates of the meshes on both the left and right sides, but instead, the reference height may be calculated using the center coordinates of the meshes on the front and rear sides, or the center coordinates of the meshes on all sides.

[0071] The measurement result display process S14 is a process that displays the results of the flatness calculation process S13. In the measurement result display process S14, the control device 40 (control unit 42) stores the above results in the storage unit 41 and displays them in the display unit 45. By checking the displayed results, the measurer can determine whether or not there is a problem with the flatness of the concrete-casting surface 2a of the first concrete-casting area A.

[0072] The control unit 42 can display the image of each mesh on the display unit 45 and also display the flatness value within the image of each mesh. Furthermore, the control unit 42 can color-code the images of each mesh according to their flatness values. This allows the measurer to visually recognize the flatness measurement results.

[0073] Furthermore, the control unit 42 can perform notification, such as changing the color of the mesh to a predetermined color, if the flatness of the mesh deviates relatively significantly from the reference height. Specifically, the control unit 42 can perform notification when the difference between the flatness and the reference height is greater than or equal to a predetermined threshold. Note that the notification method is not limited to the examples described above, and any method such as a message or sound can be used. After performing the measurement result display process S14, the control unit 42 terminates the flatness measurement process.

[0074] If the measurer determines that there is a problem with the flatness of the concrete placement surface 2a in the first concrete placement area A, they may issue instructions to correct the construction in the first concrete placement area A. In this case, the measurer will perform the flatness measurement process again on the corrected first concrete placement area A (re-measurement). The results of the re-measurement will be stored and displayed in the same way as the measurement results described above.

[0075] Furthermore, each time the concrete 4 is poured into another pouring area and the pouring surface 2a is finished, the measurer will perform the flatness measurement process for that other pouring area in the same way as the first pouring area A.

[0076] By performing the flatness measurement process described above, the flatness of the concrete placement surface 2a of the slab 2 can be measured efficiently. Specifically, when measuring the flatness of a concrete placement area (for example, the first concrete placement area A) using the flatness measurement process, the control device 40 (control unit 42) acquires the necessary data (elevation of the mesh center coordinates) to measure the flatness of the concrete placement area and measures the flatness. For this reason, the control unit 42 does not acquire data or measure the flatness of concrete placement areas other than the area to be measured. In this way, by measuring the flatness of the concrete placement area to be measured, it is possible to exclude areas where concrete 4 has not been placed or areas where the flatness has already been measured, and measure the flatness only in the necessary areas, thereby shortening the time required for measurement. This makes it possible to realize a concrete placement surface measurement system 10 (concrete placement surface measurement method) suitable for real-time flatness measurement in the concrete placement process.

[0077] Furthermore, in this embodiment, the flatness measurement process can be performed by remote operation using the control device 40. This allows the measurer to manage the flatness of the concrete pouring surface 2a even if they are not present at the site where the concrete 4 is poured. In addition, to measure the flatness of the concrete pouring surface 2a over a wide area, it is desirable to install the surveying equipment 20 at a relatively high position. Even in such cases, remote operation makes it easy to operate the surveying equipment 20 installed at a high position.

[0078] Furthermore, in this embodiment, the surveying equipment 20 can be started and shut down (turned on or off) at the start and end of work using the surveying equipment 20 by remote control using the control device 40. Also, for example, if a malfunction such as freezing occurs while the surveying equipment 20 is operating, the surveying equipment 20 can be restarted by remote control. In the example described above, communication between the surveying equipment 20 and the control device 40 is shown by wireless communication, but communication between the surveying equipment 20 and the control device 40 may be performed by wired communication (e.g., serial cable) instead of wireless communication.

[0079] Furthermore, the measurer can measure the flatness of the cast surface 2a of the hardened slab 2 by performing a flatness measurement process after the concrete 4 cast in each casting area has hardened. When performing the flatness measurement process on the hardened cast surface 2a, the flatness measurement process may be performed for each casting area, or it may be performed for all casting areas at once.

[0080] It should be noted that the details of each process in the flatness measurement process according to this embodiment described above are merely examples, and the flatness measurement process for building floor structures is not limited to the above, and various modifications are possible. For example, in the flatness calculation process S13 described above, the reference height was set to the average of the elevations of the center coordinates of the meshes adjacent to the mesh to be measured, but the reference height is not limited to such a value. Various values ​​that serve as the basis for measuring flatness can be adopted as the reference height.

[0081] As described above, the concrete casting surface measurement system 10 according to one embodiment of the present invention is An irradiation unit 21 that irradiates laser light, A measurement unit (control unit 27 and control unit 42) is capable of measuring the flatness of the concrete pouring surface 2a of the concrete 4 of the floor structure (slab 2) of a building under construction, using the laser light emitted by the irradiation unit 21. It is equipped with, The measurement unit (control unit 27 and control unit 42) is capable of measuring the flatness of any area (first casting area A set in casting area setting process S10) within the entire casting surface 2a (flatness calculation process S13).

[0082] This configuration allows for efficient measurement of the flatness of the concrete pouring surface 2a of slab 2. Specifically, by measuring the flatness of an arbitrary area (first pouring area A) within the entire concrete pouring surface 2a, the desired flatness can be measured without acquiring data or measuring the flatness of areas other than the area being measured. In this way, for example, areas where concrete 4 has not been poured or areas where the flatness has already been measured can be excluded, and only the necessary areas can be measured, thereby reducing the time required for measurement.

[0083] Furthermore, the concrete casting surface measurement system 10 is The system includes a division area setting unit (control unit 42) that can set division areas (first casting area A, second casting area B, third casting area C, and fourth casting area D) by dividing the casting surface 2a into multiple areas (casting area setting process S10), The aforementioned measurement unit (control unit 27 and control unit 42) The flatness of the regions, which are divided into the aforementioned arbitrary region (first pouring area A) and the aforementioned divided regions (each pouring area), can be measured.

[0084] With this configuration, flatness can be measured for each of the divided areas (divided regions) where, for example, concrete 4 has been poured and measurement is possible.

[0085] Furthermore, the concrete casting surface measurement system 10 is The system includes a memory unit (memory unit 41) that stores information about the divided regions (each pouring area) in conjunction with information about the construction plan of the floor structure (slab 2), The aforementioned measurement unit (control unit 27 and control unit 42) Based on the construction plan information for the aforementioned floor structure (slab 2), it is possible to measure the flatness of the areas divided into the aforementioned divided areas (each casting area) as the arbitrary area (first casting area A).

[0086] This configuration allows for the measurement of flatness in each divided area based on information from the construction plan.

[0087] Furthermore, if the measurement unit (control unit 42) is configured to automatically set an arbitrary area (first concrete pouring area A) based on the construction plan information, the flatness of each divided area can be easily measured.

[0088] Furthermore, the concrete casting surface measurement system 10 is Each of the divided regions (each casting area) is equipped with a display unit (display unit 45) capable of displaying the measurement result of the flatness of the casting surface 2a (measurement result display processing S14).

[0089] This configuration allows for visual recognition of the flatness measurement results for each divided area (each concrete pouring area).

[0090] Furthermore, the concrete casting surface measurement system 10 is The irradiation unit 21 and the measurement unit (control unit 27) are equipped with a remotely controllable operation unit (input unit 44).

[0091] This configuration allows for the management of the flatness of the concrete pouring surface 2a even without being present at the site where the concrete 4 is poured.

[0092] Furthermore, the method for measuring the casting surface according to one embodiment of the present invention is: A laser beam irradiation process (point cloud data acquisition process S11) in which laser light is irradiated by the irradiation unit 21, Using the laser light emitted in the laser light irradiation step, a flatness measurement step (elevation acquisition process S12, flatness calculation process S13) is performed to measure the flatness of an arbitrary area (first pouring area A) within the entire concrete pouring surface of the floor structure of the building under construction. It is equipped with the following features.

[0093] This configuration allows for efficient measurement of the flatness of the cast surface 2a of slab 2.

[0094] Furthermore, the slab 2 according to this embodiment is one form of the building floor structure according to the present invention. Furthermore, the concrete pouring area according to this embodiment is one form of the divided region according to the present invention. Furthermore, the control unit 27 and control unit 42 according to this embodiment are one form of the measurement unit according to the present invention. Furthermore, the control unit 42 according to this embodiment is one form of the divided region setting unit according to the present invention. Furthermore, the input unit 44 according to this embodiment is one form of the operation unit according to the present invention.

[0095] Although embodiments of the present invention have been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention as described in the claims.

[0096] For example, in this embodiment, an example is shown in which the surveying equipment 20 is attached to the steel column 5 via a frame 30, but the embodiment is not limited to this. For example, the surveying equipment 20 may be placed on a suitable tripod.

[0097] Furthermore, although this embodiment shows an example of operating the surveying equipment 20 remotely using the input unit 44 (control device 40), the embodiment is not limited to this. For example, the surveying equipment 20 may be operated using the input unit 24 of the surveying equipment 20.

[0098] Furthermore, although this embodiment primarily shows an example in which the flatness measurement process is performed by the control unit 42 of the control device 40, it is not limited to this configuration. For example, the flatness measurement process may be performed by the control unit 27 of the surveying instrument 20, or both the control unit 27 and the control unit 42 may be used to perform the flatness measurement process.

[0099] Furthermore, although this embodiment shows an example in which the flatness measurement process is performed after the surface (casting surface 2a) of the concrete 4 has been finished, the embodiment is not limited to this. For example, the flatness measurement process may be performed while the surface of the concrete 4 is being finished, so that the flatness is measured in real time during the surface finishing work.

[0100] Furthermore, while this embodiment shows an example where the range of each concrete placement area is set based on the construction plan of Building 1, it is not limited to this configuration. For example, the range of each concrete placement area may be set without relating it to the construction plan of Building 1. In this case, for example, each concrete placement area may be defined as a region in which the area to be concrete 4 is divided into a grid of a certain shape.

[0101] Furthermore, the concrete pouring area (any area) is not limited to those set in advance. For example, each concrete pouring area may be any range specified by the measurer during measurement. In this case, for example, the measurer may specify the above-mentioned arbitrary range by drawing a line around a predetermined range of the drawing data displayed on the display unit 45 using the input unit 44.

[0102] Furthermore, although this embodiment shows an example in which a personal computer is used as the control device 40, the embodiment is not limited to this configuration. For example, a suitable smartphone, tablet, or other terminal may be used as the control device 40. [Explanation of Symbols]

[0103] 10. Surface measurement system for concrete pouring 20 Surveying equipment 21 Irradiation area 27 Control Unit 40 Control device 42 Control Unit

Claims

1. An irradiation unit that emits laser light, A measuring unit capable of measuring the flatness of the concrete pouring surface of a floor structure of a building under construction, using the laser light emitted by the aforementioned irradiation unit, A division area setting unit that allows setting division areas by dividing the casting surface into multiple regions, It is equipped with, The aforementioned measuring unit is The flatness of the region divided into the aforementioned segmented area within the entire surface to be cast can be measured. The system can acquire information on the construction plan and the construction schedule of the floor structure, and based on the acquired information, it can set a division area from among the multiple division areas to be measured. A system for measuring the concrete pouring surface.

2. Each of the divided regions is equipped with a display unit capable of displaying the measurement result of the flatness of the cast surface, The concrete casting surface measurement system according to claim 1.

3. The irradiation unit and the measurement unit are equipped with a remotely controllable operation unit. A concrete casting surface measurement system according to claim 1 or claim 2.

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