TILT ANALYSIS METHOD, TILT ANALYSIS PROGRAM, AND TILT ANALYSIS DEVICE

Abstract

To provide an inclination analysis method, an inclination analysis program and a device capable of saving power.SOLUTION: An inclination analysis method for analyzing inclination of a columnar object comprises: a reference value acquisition step of acquiring, by a reference value acquisition part, a reference value from a first position of a reflection part of a surveyed device fitted to a columnar leg part of a columnar object; a column capital value acquisition step of acquiring, by a column capital value acquisition part, a column capital value from a second position of the reflection part of the surveyed device fitted to the columnar capital part of the columnar object upon reception by an input, of an execution instruction to a column capital value acquisition part displayed on the display part of a terminal; an inclination analysis step of generating, by the inclination analyzing part, inclination information indicating an inclination direction of the columnar object, on the basis of the reference value and the columnar capital value; and an inclination information output step of causing, by the inclination information output part, to display inclination information including graphic display on the display part.SELECTED DRAWING: Figure 11

Description

[Technical Field]

[0001] The present invention relates to a tilt analysis method, a tilt analysis program, and a tilt analysis device. [Background technology]

[0002] At a construction site of a structure, after pillar members such as steel columns have been largely assembled (after erection), a re-plumbing operation is carried out to adjust the pillar members so that they are perpendicular to the horizontal plane. As a technology for measuring the position of pillar members, for example, Patent Document 1 discloses a system that uses a surveying device to actually measure retroreflective members attached to pillars. The tilt amount of the pillar is calculated based on the position of the retroreflective members measured by the surveying device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-39247 Summary of the Invention [Problem to be solved by the invention]

[0004] However, there is a demand for labor-saving work at construction sites and other facilities, and measurements using conventional transits generally require one transit per pillar. Normally, two pillars are observed simultaneously, and a worker such as a scaffolder pulls a wire that is strung between the two pillars to adjust the inclination of the pillars, which requires a large number of people, including both observers and workers.

[0005] The present invention has been made to solve such problems, and its object is to provide a labor-saving gradient analysis method, gradient analysis program, and gradient analysis device. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the tilt analysis method of the present disclosure is a tilt analysis method for analyzing the tilt of a columnar object, and includes: a reference value acquisition step in which a reference value acquisition unit acquires a reference value from a first position of the reflecting part of the surveyed device attached to the base of the columnar object; a column value acquisition step in which, when an execution instruction for the column value acquisition unit displayed on the display unit of a terminal device is received by an input unit, the column value acquisition unit acquires a column value from a second position of the reflecting part of the surveyed device attached to the column head of the columnar object; a tilt analysis step in which a tilt analysis unit generates tilt information indicating the direction in which the columnar object is tilted based on the reference value and the column value; and a tilt information output step in which a tilt information output unit displays the tilt information including a graphical display on the display unit.

[0007] In order to achieve the above-mentioned object, the tilt analysis program of the present disclosure is a tilt analysis program for analyzing the tilt of a columnar object, and causes a computer to execute the following steps: a reference value acquisition step in which a reference value acquisition unit acquires a reference value from a first position of the reflecting part of the surveyed device attached to the base of the columnar object; a column value acquisition step in which, when an execution instruction to a column value acquisition instruction unit displayed on the display unit of a terminal device is received by an input unit, the column value acquisition unit acquires a column value from a second position of the reflecting part of the surveyed device attached to the column head of the columnar object; a tilt analysis step in which a tilt analysis unit generates tilt information indicating the direction in which the columnar object is tilted based on the reference value and the column value; and a tilt information output step in which a tilt information output unit displays the tilt information including a graphical display on the display unit.

[0008] In order to achieve the above-mentioned object, the tilt analysis device of the present disclosure comprises a reference value acquisition unit that acquires a reference value from a first position of the reflecting part of the surveyed device attached to the base of a column, a column value acquisition unit that acquires a column value from a second position of the reflecting part of the surveyed device attached to the column head of the column when an input unit receives an execution instruction to a column value acquisition instruction unit displayed on the display unit of a terminal device, a tilt analysis unit that generates tilt information indicating the direction in which the column is tilted based on the reference value and the column value, and a tilt information output unit that displays the tilt information including a graphical display on the display unit. [Effects of the Invention]

[0009] The gradient analysis method, gradient analysis program, and gradient analysis device according to the present invention, which use the above means, can enable labor savings. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram illustrating a configuration of a tilt analysis system according to an embodiment of the present disclosure. [Figure 2] FIG. 1 is a diagram showing an example of a surveyed device that is mainly attached to a square pillar. [Figure 3] FIG. 10 is a diagram illustrating the installation of columns. [Figure 4] FIG. 10 is a diagram showing a menu screen. [Figure 5] FIG. 10 is a diagram showing an operation screen for reference measurement. [Figure 6] FIG. 10 is a diagram showing an operation screen for setting a reference. [Figure 7] FIG. 10 is a diagram showing the operation screen for construction measurement. [Figure 8] FIG. 10 is a diagram showing the operation screen for construction measurement and output. [Figure 9] FIG. [Figure 10] FIG. 10 is an enlarged view of part P of the document in FIG. 9. [Figure 11] 1 is a flowchart showing a method for analyzing tilt during construction. [Figure 12]FIG. 10 is a schematic diagram showing pillars arranged at multiple nodes. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.

[0012] The tilt analysis system 1 comprises a portable terminal device 100 used by a worker 2, a surveying device 200, and a surveyed device 300. Using the tilt analysis system 1 equipped with these components, the worker 2 analyzes the tilt of the columnar object 11 and works on the spot to adjust the column so that its orientation is vertical.

[0013] One embodiment of the surveying device 200 is, for example, a lightwave surveying instrument such as a total station (TS) installed at known position coordinates. "Lightwave method such as TS" includes not only TS but also measuring instruments that use a lightwave method and are capable of performing measurements equivalent to TSs with automatic tracking functions and that do not have a telescope. The surveying device 200 can automatically track the reflecting part 310 of the target surveyed device 300, and survey a predetermined position of the object to be surveyed (pillar-shaped object 11 in this embodiment) on which the reflecting part 310 is installed.

[0014] The surveyed device 300 is equipped with a reflecting unit 310, which is an optical element that reflects light emitted from the surveying device 200 back to the surveying device 200. FIG. 2 shows the surveyed device 300 attached to a rectangular pillar 11. The surveyed device 300 is equipped with a mounting unit 320 that is attached to the pillar 11, and a reflecting unit 310 that reflects the measurement light emitted from the surveying device 200 back to the surveying device 200. The optical element that constitutes the reflecting unit 310 is a so-called retro-reflecting prism. In the surveying and construction-related industries, this type of surveyed device 300 is also generally called a prism. The surveyed device 300 will be described in detail later.

[0015] Although the surveying device 200 and the surveyed device 300 are physically separate entities, they can work together to perform the function of surveying, and the surveyed device 300 can also be interpreted as being included in the surveying device 200 as a whole.

[0016] Returning to FIG. 1 again, the surveying instrument 200 and the terminal device 100 will be described. The surveying instrument 200 is supported on a tripod and is provided with a horizontal rotation drive unit (not shown) that can be rotated in the horizontal direction. The surveying instrument 200 may also be provided with a vertical rotation drive unit (not shown) that can be rotated in the vertical direction on the horizontal rotation drive unit, and a telescope unit that is rotated thereby. Although not shown, the surveying instrument 200 is provided with an angle measurement unit 212, which includes a horizontal angle detection unit that detects the rotation angle in the horizontal direction, and a vertical angle detection unit that detects the rotation angle in the vertical direction. By using these horizontal angle detection unit and vertical angle detection unit, the vertical angle and horizontal angle in the aiming direction can be measured.

[0017] The surveying device 200 is also provided with, for example, an optical distance meter as a distance measuring unit 211 that measures the oblique distance to the device to be surveyed 300. For convenience, the angle measuring unit 212 and the distance measuring unit 211 are collectively referred to as the surveying unit 210.

[0018] The surveying instrument 200 also has a surveying memory unit 220 , a surveying communication unit 230 , a surveying control unit 240 , and a tracking control unit 250 .

[0019] The surveying storage unit 220 may store in advance various programs for performing the above-mentioned surveying control and tracking control, information on the land to be used at the construction site (elevation, etc.), design information, etc. The surveying storage unit 220 may also be configured to store position coordinates that have already been surveyed.

[0020] The survey communication unit 230 is capable of communicating with external devices such as the terminal device 100, and is configured as, for example, a wireless communication means.

[0021] The survey control unit 240 has a function of controlling the surveying by the surveying instrument 200. Specifically, the survey control unit 240 automatically or manually collimates the surveyed instrument 300 using the telescope unit, and causes the angle measurement unit 212 (horizontal angle detection unit, vertical angle detection unit) and distance measurement unit 211 to detect the horizontal angle, vertical angle, and oblique distance between the surveying instrument 200 and the surveyed instrument 300. Here, the retroreflective prism, which is an example of the reflecting unit 310 of the surveyed device 300, is spaced apart from the mounting unit 320 attached to the pillar-shaped object 11 as shown in FIG. 2. However, the distance (the distance b1 from the center PC to the flat portion or the distance b2 to the corner) is known, and the distance b3 from the prism to the surface of the pillar is also known. Therefore, the surveying control unit 240 corrects the horizontal angle, vertical angle, and diagonal distance detected by the angle measuring unit 212 and the distance measuring unit 211, and calculates the position of the surveyed device 300 as the surveying result. The position can be calculated as relative coordinates or absolute coordinates. When calculated as relative coordinates, the position of the pillar-shaped object 11, which is the object to be surveyed, is a relative value seen from the installation position of the surveying device 200.

[0022] The tracking control unit 250 tracks the surveyed device 300 by irradiating the surveyed device 300 with tracking light and controlling the drive of the horizontal rotation drive unit and vertical rotation drive unit (not shown) so as to continue receiving the tracking light reflected by the reflecting unit 310 of the surveyed device 300.

[0023] The surveyed device 300 will now be described in more detail. The mounting portion 320 of the surveyed device 300 shown in Fig. 2 is formed, for example, from an L-shaped magnetic block, and is provided with a first flat portion 321 and a second flat portion 322 that abut against the surface of the pillar-shaped object 11 on the inside of the corner of the L shape. The first flat portion 321 and the second flat portion 322 are arranged perpendicularly, so that when the pillar-shaped object 11 is a square pillar, i.e., a pillar with a rectangular cross section and right-angled surfaces, the mounting portion 320 fits snugly into the corner of the pillar 11 regardless of the dimensions of the pillar 11. Note that the mounting portion 320 can also be adapted to pillars 11 of other shapes, such as H-shaped steel, because they have corners.

[0024] Furthermore, many pillars 11 are made of magnetic materials such as steel frames. Therefore, by constructing this mounting part 320 from a magnetic material that exerts an attractive force on the pillar 11, not only is it easy to mount and remove, but it is also firmly fixed and does not move during mounting, allowing for stable surveying. By using such a surveyed device 300, it becomes easy to measure the position of the pillar's corners. A method for measuring the pillar's center position will be described later. Note that if the mounting part 320 is mounted to the pillar 11 using a different mounting means, the mounting part 320 does not need to be made of a magnetic material. For example, if the pillar is made of wood, a mounting part 320 suitable for wood rather than a magnetic material may be used.

[0025] Returning to FIG. 1 again, the terminal device 100 includes, for example, a smartphone, a feature phone, a tablet, a handheld computing device (e.g., a PDA (Personal Digital Assistant)), a wearable device (e.g., a glasses-type device, a watch-type device, a VR terminal integrated with a head-mounted display), etc. Alternatively, the terminal device 100 may be a portable terminal such as a laptop computer. By installing application software on a general-purpose terminal, it can be used as a portable display terminal according to this embodiment. These terminal devices 100 include a display unit 150 (output unit) and can be easily carried to a work site. Furthermore, the terminal device 100 can be used hands-free or held in one hand to easily check information output on the display unit 150. It includes an internal power source such as a battery and can operate for a certain period of time without requiring an external power source.

[0026] The terminal device 100 includes a terminal communication unit 130, a terminal storage unit 120, a terminal processing unit 110, an input unit 140, and a display unit 150 (output unit).

[0027] The device processing unit 110 executes a program stored in the device storage unit 120 (not shown) and can perform functions and / or methods implemented by the code or instructions included in the program. The device processing unit 110 can be, for example, a central processing unit (CPU), an MPU, a GPU, a microprocessor, a processor core, a multiprocessor, an ASIC, an FPGA, etc., and can implement the processes disclosed in each embodiment using a logic circuit or a dedicated circuit formed in an integrated circuit, etc. Furthermore, the terminal device 100 can include a main memory (not shown) that temporarily stores a program read from the device storage unit 120 and provides a working area for the device processing unit 110.

[0028] The terminal communication unit 130 is configured to be able to communicate with the survey communication unit 230 of the surveying device 200. The terminal communication unit 130 can receive the surveying results of the surveying device 300 measured by the surveying device 200, or the position information calculated by the survey control unit 240. The calculation of the position information based on the surveying results may be performed on the surveying device 200 side or on the terminal device 100 side. Furthermore, the communication may be performed either wired or wirelessly.

[0029] The input unit 140 receives input from the user, or worker 2, and transmits information related to the input to the device processing unit 110. The input unit 140 is realized by any of various types of devices having an input function, or a combination thereof. The configuration of the input unit 140 includes, for example, hardware input means such as buttons, software input means displayed on an output unit such as a touch panel, a remote controller, a microphone, and other audio input means.

[0030] The display unit 150 may be configured as a device capable of displaying visual information such as images and text on a screen. Examples of the display unit 150 include flat displays such as liquid crystal displays and OLEDs, curved displays, folding screens provided on foldable devices, head-mounted displays, and devices capable of displaying by projection onto a surface using a small projector. Furthermore, when the display unit 150 is an audio output unit, an audio output device such as a speaker can be used. Furthermore, the display unit 150 may be configured in combination with an audio output unit.

[0031] The terminal storage unit 120 stores various necessary programs and data. The terminal storage unit 120 can store, for example, design information, measurement information, tilt information (tilt information 7, 83 shown in FIGS. 7 and 10), and history information thereof. The measurement information can include measurement information received by the terminal communication unit 130 and position information calculated based on the measurement information. The terminal storage unit 120 can store various parameters, such as parameters and calculation formulas for calculating the center PC of the columnar object 11 from the position of the reflecting unit 310. The terminal storage unit 120 can be configured using various storage media such as an HDD, an SSD, or a flash memory.

[0032] The design information includes design drawings and land information (elevation, etc.) required for construction work. Construction work refers to the construction of structures that require pillars, such as buildings, roads, railways, tunnels, bridges, ditches, waterways, and rivers. The design drawings may include the design drawings of the building, linear data, point data, the positions and coordinates of each point and line segment, elevation, height, width, and dimensions of the pillars. Note that the configuration of the embodiment of the present disclosure has the effect of being able to analyze the inclination of the pillars 11 without using design information, thereby eliminating or reducing the need to input design information in advance.

[0033] The tilt information stored in the terminal storage unit 120 can be information linking the position, node, tilt direction, tilt amount, analysis timing of the tilt (date, time, etc. of the analysis), and system user information of each columnar object 11. For example, the terminal storage unit 120 can output and store tilt information at any analysis timing in accordance with a predetermined format called form 8 (inspection form) (see also FIG. 10) for checking the current status and the status after work completion.

[0034] The terminal storage unit 120 also stores application software programs, such as a reference value acquisition unit 121, a stigma value acquisition unit 122, a tilt analysis unit 123, a tilt information output unit 124, a heterogeneous stigma value acquisition unit 125, and an offset setting unit 126, which implement various functions. The programs include a tilt analysis program.

[0035] The reference value acquisition unit 121 has the function of measuring a first position of the reflecting part 310 of the surveyed device 300 attached to the base part 11a of the columnar object 11 (see Figure 2) using the surveying device 200, and acquiring a position offset (corrected) from the first position by a known offset amount as a reference value, which is the center PC position of the base part 11a.

[0036] The column head value acquisition unit 122 has the function of measuring the second position of the reflecting part 310 of the surveyed device 300 attached to the column head 11b of the column-shaped object 11 using the surveying device 200, and acquiring the position offset (corrected) by a known offset amount from the second position as the column head value, which is the center PC position of the column head 11b.

[0037] The inclination analysis unit 123 has the function of generating inclination information including an inclination direction indicating in which direction the columnar object 11 is inclined based on the reference value acquired by the reference value acquisition unit 121 and the column value acquired by the column value acquisition unit 122.

[0038] In addition, the inclination analysis unit 123 has the function of generating inclination information including an inclination direction indicating the direction in which the hetero-section columnar object is inclined based on the reference value and the hetero-section stigma value acquired by the hetero-section stigma value acquisition unit 125.

[0039] The tilt information output unit 124 has a function of displaying the tilt information generated by the tilt analysis unit 123 on the display unit 150 .

[0040] The heterogeneous column capital value acquisition unit 125 has a function of acquiring, as the heterogeneous column capital value, the column capital value of a heterogeneous column 11 that is connected directly above and at a different node from the column 11 whose reference value has been acquired by the reference value acquisition unit 121. The heterogeneous column capital value is acquired by attaching a surveyed device 300 to the column capital 11b of the heterogeneous column 11 located above the column 11 whose reference value has been acquired, and measuring the position of the reflecting part 310 of this surveyed device 300 with the surveying device 200.

[0041] The terminal device 100 and the surveying device 200 are equipped with computers for executing various programs. The programs may be stored in a computer-readable storage medium.

[0042] Here, we will explain the main screen configuration displayed on the display unit 150 when the tilt analysis program is executed. Note that the information of each image may be stored in the device storage unit 120, or some information may be acquired from an external device each time and displayed on the screen of the display unit 150 by the device processing unit 110.

[0043] The menu screen 60 shown in FIG. 4 has menu items such as site name 61, reference measurement 62, reference setting 63, construction measurement 64, setting 65, input 66, output 67, radiation observation 68, and confirmation / guidance 69. The site name 61 is site name identification information (e.g., a name consisting of characters) set in correspondence with information such as design information, survey information, and history information. When the site name 61 is selected, the display unit 150 displays a selection screen for site name identification information pre-stored in the terminal memory unit 120, or a registration acceptance screen for a new site name (details not shown). When any one of the site name identification information is selected, or when a new site name is registered and assigned site name identification information, the site name identification information is displayed in the site name 61 on the menu screen 60 as the currently selected site name. Furthermore, for example, when one of the site name identification information already stored is selected, information such as design information, survey information, and history information associated with the selected site name identification information is read out.

[0044] Reference measurement 62 is a menu item for measuring (surveying) the position of a reference instrument point. When a reference position has been set in reference setting 63 (described later) and reference measurement 62 is selected, the display on the display unit 150 transitions to a selection screen 621 for setting the instrument point position, as shown in FIG. 5. The selection screen 621 includes, as instrument point position setting (measurement) items, reference axis measurement 621a, backsight point measurement 621b (known point), and backsight point measurement 621c (reference axis at origin). For example, when backsight point measurement 621b (known point) is selected, the screen transitions to a reference position selection screen 622. The reference position selection screen 622 displays the surveying instrument 200, multiple pillars 11 arranged according to the design information, and the surveyed device 300 attached to some of the pillars 11.

[0045] When record 622a is selected with one of the surveyed devices 300 selected on the reference position selection screen 622, the surveying device 200 surveys the position of a reference point 400 having a reflecting portion similar to the reflecting portion 310, and registers the coordinates of the reference point 400 and sets an instrument point. The terminal device 100 receives the measurement results from the surveying device 200 and displays a measurement result screen 623 including the measurement results 623a of the reference point 400 on the display unit 150. The measurement results 623a include the point name, Y-axis and X-axis, reference position, and coordinates of the pillar-shaped object 11 on which the reference point 400 is located. When the OK button for measurement result 623a is selected, the first position of the pillar-shaped object 11 corresponding to the surveyed device 300 selected on the reference position selection screen 622 is registered in association with the reference value.

[0046] If reference position setting has not been completed in reference setting 63 (described later) and reference measurement 62 is selected, the screen transitions to a setting screen for Y-way and X-way (including main and sub) (not shown), and then the display transitions to reference measurement selection screen 624 shown in FIG. 5. The reference measurement selection screen 624 displays the reference point 400. The terminal device 100 receives the measurement results from the surveying device 200, and displays a measurement result screen (corresponding to measurement result screen 623) including the measurement results on the display unit 150. When the OK button for measurement results is selected, the position of the measured reference point 400 is registered.

[0047] Reference setting 63 is a menu item for setting a columnar object 11 that serves as a reference for tilt analysis. When reference setting 63 is selected, a reference selection screen 631 shown in FIG. 6 is displayed on the display unit 150. On the reference selection screen 631, multiple columnar objects 11 are arranged corresponding to the alignments 81 and 82. When reference position setting 631a is selected, the screen transitions to a reference position setting screen 632. On the reference position setting screen 632, information on the alignments 81 and 82 of the columnar object 11 that serves as a reference can be entered. Input items include the number of nodes, Y alignment 81 and X alignment 82 (including main, spacing, and sub), and reference Y alignment and reference X alignment (including main and sub).

[0048] Furthermore, when the reference position list 631b is selected in the reference setting 63, the screen transitions to a reference position list screen 633. In the reference position list screen 633, the streets 81 and 82 of the pillar-like object 11 selected as the reference position are displayed in a list.

[0049] The "Pitfall Measurement" 64 is a menu item for measuring the position of the column capital portion 11b and analyzing the inclination of the column 11. When the "Pitfall Measurement" 64 is selected, the display unit 150 displays a selection screen (not shown) similar to the selection screen 621 of FIG. 5, prompting the user to select "Reference Axis Measurement" (621a), "Backsight Point Measurement" (621b) (known point), or "Backsight Point Measurement" (621c) (reference axis at the origin). For example, when "Backsight Point Measurement" is selected, the display unit 150 displays a measurement reference position selection screen 641 shown in FIG. 7. The measurement reference position selection screen 641 displays multiple columns 11 corresponding to the crossings 81 and 82. The measurement reference position selection screen 641 also includes a reference position setting 641a having the same function as the reference position setting 631a described above in FIG. 6, and a reference position list 641b having the same function as the reference position list 631b.

[0050] When, for example, the columnar object 111 is selected on the measurement reference position selection screen 641, the screen transitions to displaying an inclination display screen 642. The inclination display screen 642 displays a point name 642a, a surveyed device information setting 642b, a measurement screen 642c, and inclination information 7 (including a first figure 71a, a second figure 71b, a figure 71e (staking point) of the column base 11a, a figure 71d (measurement point) of the column capital 11b, direction information 72, and difference information 73).

[0051] The point name 642a displays the street of the currently selected pillar-like object 11. The surveyed device information setting 642b is an icon that transitions to an information setting screen for the surveyed device 300. When the surveyed device information setting 642b is selected, information such as the mounting position of the surveyed device 300 relative to the pillar-like object 11 is set on a setting screen 647, which will be described later.

[0052] The measurement screen 642c displays, as tilt information 7, the street (point name) information "2A" including a first graphic 71a indicating the base 11a located at the reference value and a second graphic 71b indicating the capital 11b located at the capital value. The measurement screen 642c also displays the street of the first graphic 71a and the second graphic 71b. The second graphic 71b is positioned so that it can be superimposed on the first graphic 71a. Also displayed near the second graphic 71b is difference information 71c indicating the distance from the capital value, which is the position of the second graphic 71b, to the reference value, which is the position of the first graphic 71a. The difference information 71c is the amount of displacement, displayed numerically in millimeters, for example.

[0053] The second graphic 71b is offset upward (first direction) and rightward (second direction) on the screen relative to the first graphic serving as a reference, with the column capital portion 11b positioned upward (e.g., in the direction of the reference axis at the site) and rightward (e.g., at a horizontal angle of 90 degrees relative to the reference axis at the site) on the screen relative to the column base portion 11a, indicating that the columnar object 11 is tilted. The difference information 71c includes a first component 71c1 corresponding to the upward direction (first direction) on the screen and a second component 71c2 corresponding to the rightward direction (second direction perpendicular to the first direction) in accordance with the display position of the second graphic 71b. For example, "3 mm" is displayed as the first component 71c1 in the upward direction relative to the second graphic 71b, and "8 mm" is displayed as the second component 71c2 in the rightward direction relative to the second graphic 71b.

[0054] In this way, the tilt information 7 displayed on the measurement screen 642c is represented by the position of the second figure 71b relative to the first figure 71a, or by the display position of the difference information 71c relative to the second figure 71b, and includes directional information indicating the direction from the column capital part 11b to the column base part 11a.

[0055] Furthermore, a measurement screen 642d displayed below the measurement screen 642c can display tilt information 7 of a columnar object 11 different from that displayed on the measurement screen 642c. The measurement screen 642d displays information including a graphic 71e (first graphic) indicating the position of the reference value of the base 11a by the intersection position, a graphic 71d (second graphic) indicating the column value of the capital part 11b by a dot, directional information 72 indicating the direction from the capital part 11b to the base 11a, and differential information 73 corresponding to the directional information 72. The graphic 71d is positioned so that it can be superimposed on the graphic 71e by an offset amount. Furthermore, the differential information indicating the direction from the column value to the reference value is displayed depending on the position of the graphic 71d relative to the graphic 71e.

[0056] Furthermore, directional information 72 and difference information 73 are displayed to the right of graphic 71e and graphic 71d. The directional information 72 includes a first component graphic 72a (first graphic) that indicates with an arrow a component corresponding to the upward direction (first direction) on the screen as the direction from the column capital portion 11b to the column base portion 11a; a second component graphic 72b (second graphic) that indicates with an arrow a component corresponding to the leftward direction (second direction perpendicular to the first direction); and a third component graphic 72c that indicates with a triangle the height from the column capital value to the reference value. The difference information 73 includes a first component 73a corresponding to the first component graphic 72a, a second component 73b corresponding to the second component graphic 72b, and a third component 73c corresponding to the third component graphic 72c. For example, the first component 73a is "0.007 m," the second component 73b is "0.006 m," and the third component 73c is "1.289 m."

[0057] Depending on the display mode, the inclination display screen 642 displayed below the measurement screen 642c may display the same inclination information 7 of the columnar object 11 as in the measurement screen 642c.

[0058] When the unset measurement screen 642c is selected, the screen display of the display unit 150 transitions to a measurement reference position selection screen 643. Since the pillar 111 has already been selected on the measurement reference position selection screen 643, the color of the displayed figure changes so that it can be recognized as the pillar 11. For example, when the pillar 11 on street "2A" is selected, the screen transitions to an inclination display screen 644.

[0059] On the inclination display screen 644, the inclination information 7 of the columnar object 11 of "2A" (point name 652a "1A_1") as selected is displayed on the measurement screen 642c. The method of displaying the inclination information 7 on the measurement screen 642c is the same as on the measurement screen 642c of the inclination display screen 642.

[0060] On the measurement screen 642d, the inclination information 7 of the columnar object 11 of "1A" (point name "1A_1") is displayed by direction information 72 using an arrow graphic and difference information 73, as in the other cases.

[0061] When Record 642e is selected, for example, the position of the capital 11b of the currently selected column 11 is measured, and the measurement results are displayed on the registration screen 645 as shown in Figure 8. When the OK button 645a is selected, the measurement results including the capital value are registered.

[0062] The measurement reference position selection screen 646 is an example in which four measurement screens 642c for the pillars 11 on different streets 81 and 82 are displayed.

[0063] The setting screen 647 displays candidate mounting positions for the surveyed device 300 relative to the pillar-shaped object 11, and is used to set the distances b1 and b2 from the center PC of the pillar 11 to the outer surface (including corners) of the pillar 11, and the distance b3 (dimension) from the reflecting part 310 of the surveyed device 300 to the pillar 11. The setting screen 647 displays a cross section of the quadrangular pillar 11. The eight possible mounting positions for the surveyed device 300 shown as examples on the setting screen 647 can be selected from: positions a1, a3, a6, and a8 on the corners of the pillar 11, and positions a2, a4, a5, and a7 on the flat part.

[0064] Input item 647a is an item where distance b1, which is the offset amount from the center PC of the pillar 11 to the flat portion which is the outer surface, can be input. If the pillar 11 is a square pillar, different values ​​can be set in two orthogonal directions. Input item 647b is an item where distance b2, which is the offset amount from the center PC to a corner which is the outer surface, can be input. Input item 647c is an item where distance b3, which is the distance from the outer surface (flat portion or corner) of the pillar 11 to which the surveyed device 300 can be attached, to the reflecting portion 310 of the surveyed device 300, can be input.

[0065] The setting screen 647 also sets the pillar 11 (including multiple pillars 113-116 in this embodiment) and the mounting position of the device to be surveyed 300 relative to the pillar 11. The mounting position of the device to be surveyed 300 can be set, for example, using numbers from "(1)" to "(8)." In the pillar 11 shown in FIG. 9, the positions a1, a2, a3, a5, a8, a7, a6, and a4 set clockwise from the upper left corner position a1 correspond to "(1)," "(2)," "(3)," "(5)," "(8)," "(7)," "(6)," and "(4)," respectively. Therefore, for example, if the pillar 113 is located at the corner position a8 as the position of the device to be surveyed 300, the setting value is set to "(8)." When the input unit 140 receives an instruction to select an attachment position from a plurality of candidates, the offset setting unit 126 calculates and sets the offset amount of the reflecting unit 310 relative to the position of the center PC of the columnar object 11 using the distance b3 and the distance b1 or the distance b2. For example, in the flowchart of Fig. 11 described later, an offset setting step is executed as a pre-setting for construction work.

[0066] Furthermore, when output 67 is selected on the menu screen 60 in Fig. 4, the display on the display unit 150 transitions to an output file selection screen 671 in Fig. 9. On the output file selection screen 671, examples of data output formats can be selected from "Steel frame reference position file (CSV)", "Steel frame accuracy (distortion and construction) file (PDF)", "Steel frame accuracy (distortion and construction) file (CSV)", "Radiation observation coordinate file (CSV)", "Pile-driven coordinate file (CSV)", and "Pile-driven coordinate residual file (CSV)".

[0067] Fig. 9 is a diagram showing report 8. Report 8 is data that is output when "Steel frame precision (distortion / construction) file (PDF)" is selected on the output file selection screen 671 in Fig. 9. Report 8 can be created for each section of the columnar structure 11.

[0068] The form 8 includes street numbers 81 in the row direction (Y direction), street numbers 82 in the column direction, and inclination information 83 of the columnar objects 11 arranged to correspond to each of the streets 81 and 82. In the form 8, the main street numbers in the row direction are represented by capital letters, e.g., "A," "B," "C," and "D" are arranged from bottom to top. The secondary street numbers in the row direction are represented by lowercase letters combined with numbers, e.g., "b1" and "b2" are arranged between "B" and "C." The main street numbers in the column direction are represented by numbers, e.g., "1," "2," "3," "4," and "5" are arranged from left to right. The secondary street numbers in the column direction are represented by lowercase letters combined with numbers, e.g., "a1" is arranged between "1" and "2."

[0069] The column 11 on the form 8 includes inclination information 83 and is arranged in accordance with the positions of the alignments 81 and 83. FIG. 10 is an enlarged schematic diagram of part P of the column 11 on the form 8. The inclination information 83 has five rectangular figures arranged in a cross shape, and the central figure 831 (third figure) representing the column 11 displays the inspection date, and the top, bottom, left, and right figures 832 display the amount of displacement of the column capital part 11b in the displacement direction as seen from the planar direction of the column capital part 11b relative to the column base part 11a (the direction of the paper in FIG. 11). The figures 831 are arranged in an array according to the alignments 81 and 82.

[0070] As shown in FIG. 10, the column 11 designated "D1" has its column capital 11b (see also FIG. 1) inclined 4 mm to the left and 4 mm upward relative to its base 11a. Therefore, the inclination information 83 includes directional information indicating the direction from the column capital 11b to the base 11a, and differential information indicating the distance in the planar direction from the column capital value where the column capital 11b is located to the reference value where the base 11a is located. Furthermore, the central graphic 831 may include visual identification information that is color-coded according to the degree of distance (the magnitude of the displacement) in the differential information. The visual identification information corresponding to the column 11 may be formed so that the magnitude of the displacement can be easily distinguished.

[0071] If such inclination information 83 is displayed for each columnar object 11, the viewer can easily understand the degree and direction of inclination of the columnar object 11 by viewing the ledger sheet 8. Furthermore, the static inclination information 83 shown in the ledger sheet 8 can be used by the worker 2 for temporary confirmation or as an inspection ledger sheet after the plumbing work. Furthermore, this inclination information can also be created without using design information by using coordinates measured on-site by the surveying device 200.

[0072] FIG. 4 shows a processing flowchart of each step in the inclination analysis method and inclination analysis program using the inclination analysis system 1 for analyzing the inclination of the columnar object 11.

[0073] First, in step S101, the surveying device 200 is installed at an arbitrary location on the construction site, and instrument point setting is performed. The terminal processing unit 110 can, for example, display the menu screen 60 shown in FIG. 4 on the display unit 150, and select the reference measurement 62 to perform instrument point setting. FIG. 3 is a diagram for explaining the installation of a columnar object 11 according to an embodiment of the present disclosure. The surveying device 200 is installed at an arbitrary location on the construction site. This installation and setting work can be performed by the worker 2 alone. In this embodiment, the coordinate axis direction may be set in any direction.

[0074] By having the worker 2 operate the input unit 140 of the terminal device 100 as a user to log in to the system, the tilt information 7, 83 can be linked to user information when it is recorded.

[0075] In step S102, the operator 2 uses the surveying instrument 200 to install the devices to be surveyed 300 on the bases 11a of the plurality of pillar-like objects 11, and measures a first position by irradiating the devices to be surveyed 300 with a surveying light. Then, the reference value acquisition unit 121 acquires this first position as a reference value. The reference value can be acquired from each of the screens 631 to 633 in FIG. 6 described above.

[0076] The reference value can be used not only for the first section, but also for the inclination analysis of the columnar sections of the second and third sections on the upper floors, and the Nth section (N is a natural number) on the floors above. Also, from here on, an example will be described in which two columns 11 are measured simultaneously and their inclinations are analyzed, but it is also possible to analyze the inclination of each column one by one, or to analyze the inclination of three or more columns simultaneously.

[0077] In step S103, the worker 2 removes the surveyed device 300 attached to the base 11a of each column 11, attaches a surveyed device 300 to each column capital 11b, and surveys the second position using the surveying device 200. The surveyed devices 300 attached to the column base 11a and the column capital 11b do not necessarily have to be the same, but the same surveyed device 300 may be used. The acquisition of column capital values ​​and inclination analysis are mainly performed from each of the screens 641 to 647 shown in Figures 7 and 8.

[0078] In step S103, as a column capital value acquisition step, when the input unit 140 receives an execution instruction to the column capital value acquisition instruction unit (for example, the OK button 645a on the construction entry position registration screen 645) displayed on the display unit 150 of the terminal device 100, the column capital value acquisition unit 122 acquires a column capital value indicating the position of the column capital 11b from the second position of the reflecting unit 310 of the surveyed device 300 attached to the column capital 11b of the column-shaped object 11. The column capital value can be acquired from each of the screens 641 to 646 shown in Fig. 7.

[0079] In step S104, the inclination analysis unit 123 generates inclination information 7, 83 including inclination direction information indicating the direction in which the columnar object 11 is inclined, based on the reference value acquired in step S102 and the column value acquired in step S103. The inclination analysis unit 123 can also calculate how much the column value deviates from the reference value, and include the amount of deviation in the inclination information.

[0080] The tilt analysis unit 123 uses the XY position coordinate values ​​of the reference value and the column capital value to calculate directional information and difference information (tilt amount) as tilt information (for example, directional information 72 and difference information 73 shown in Figure 8, etc.). For example, the tilt analysis unit 123 calculates each difference by separating the X and Y components of the directional information. Another method involves treating the X and Y components of the coordinates as a single vector and calculating the tilt amount. In the example of Figure 10, if the reference value is assumed to be (0,0), the tilt direction and tilt amount are the vector (0,0) → (+4 mm, +4 mm). This method makes it possible to directly determine the direction (opposite to the tilt direction) and amount of pulling using a wire rope or piano wire when re-plunging, making adjustments using wire rope, etc., easier.

[0081] The inclination analysis unit 123 can also calculate the height of the column 11 using the difference in Z coordinate value between the reference value and the column capital value.

[0082] In step S105, the inclination information output unit 124 displays the inclination information 7, 83 on the display unit 150 of the terminal device 100. In step S105, which is a report output step, the inclination information output unit 124 outputs a report 8, in which the alignments 81, 82 of the columnar object 11 and the inspection date, direction information, and difference information of the inclination information 7, 83 of the columnar object 11 are arranged in correspondence with each other, on the display unit 150 or another device (for example, a display unit of an external device or an output device such as a printer).

[0083] The tilt information 7, 83 can be used primarily by the worker 2 to check the tilt condition while performing construction work. The tilt information 7, 83 can be divided into two types: dynamic tilt information, which the terminal device 100 analyzes the tilt condition in real time while communicating with the surveying device 200 and outputs to the display unit 150; and static tilt information (e.g., the tilt information 83 shown in the aforementioned ledger 8), which records the tilt condition at a fixed analysis timing so that a third party can check the tilt condition after work, etc. More specifically, the dynamic tilt information constantly tracks and surveys the position of the installed surveyed device 300, so that even if the position of the surveyed device 300 changes, the changes are continuously output to the display unit 150. Therefore, the tilt direction and tilt amount are displayed sequentially in real time in the dynamic tilt information, allowing the worker 2 to use this as a clue when performing construction work.

[0084] The static tilt information can be stored as history information in the terminal storage unit 120. In this case, the worker 2 can store or view the static tilt information at any analysis timing by operating, for example, the input unit 140 (for example, a touch panel display) of the terminal device 100.

[0085] Each piece of inclination information 7, 83 also includes information on streets 81, 82 (street core line information), which are straight lines indicating the arrangement of multiple pillars 11 generated by the inclination analysis unit 123 using reference values, and the display unit 150 displays the position of each of the multiple pillars 11 and the streets 81, 82 passing through each pillar 11. The position of each of the multiple pillars 11 is displayed using XY coordinates obtained for each pillar 11 using actual measured values ​​obtained by surveying as reference values. This makes it possible to perform plumbing and the like using the inclination information 7 without obtaining design position information for the pillars 11.

[0086] When the tilt information 7, 83 is used as dynamic tilt information, the tilt information 7, 83 displayed on the display unit 150 or the like can provide specific clues to the worker 2 correcting the posture of the columnar structure 11, indicating in what direction and by how much. In addition, the static tilt information output as a report 8 for a certain section provides clues for the plumbing work at the section above. Moreover, this information can also be used as an inspection report after plumbing, showing the progress or final state of the plumbing work. By storing the history of the report 8 in this way, it becomes easier to understand the situation by comparing the amount of misalignment of the columnar structure 11 that occurs during the construction work process or due to environmental changes, etc., with the historical information.

[0087] In step S106, the operator 2 grasps the tilt condition using the tilt information 7, 83 and corrects the posture of the pillar-shaped object 11. The posture of the pillar-shaped object 11 can be corrected, for example, by wrapping a wire 3 around each of the pillars 11 and pulling it, as shown in FIG. 3 . In this case, if dynamic tilt information is used, the position of the surveyed device 300 is updated in real time, so the operator 2 can efficiently correct the posture while receiving feedback on the results of actually pulling the wire from the tilt information 7, 83 displayed on the display unit 150. Note that this correction work may be performed for each pillar, or may be performed multiple times in the X direction, Y direction, etc. Therefore, steps S104, S105, and S106 may be performed substantially simultaneously or repeatedly.

[0088] Once all of this work is completed, construction work for one section is complete, and work on the next section begins. Note that a building may have multiple construction sections horizontally and multiple sections vertically. For example, sections 1 and 2 often roughly correspond to the first and second floors of the final completed building.

[0089] In step S107, plumbing work is carried out on the second section, which is a section different from the first section. The different section column capital value acquisition unit 125 acquires the column capital value of the column object 11 at a different section connected directly above the section where the column object 11 for which the reference value was acquired is to be installed, as the different section column capital value. The different section column capital value can be acquired by using the surveying device 200 to survey the position of the surveyed device 300 attached to the column capital part 11b of the column object 11 at the different section.

[0090] Fig. 12 is an example of an image displayed on the display unit 150 of the terminal device 100. Fig. 12 shows the installation state of a plurality of columns 11. The processing or work in steps S107 to S110 can be performed in the same manner as steps S103 to S106. Note that Fig. 12 shows a flowchart for sections 1 and 2, but the same process as in section 2 is repeated when performing the flow from section 3 onwards.

[0091] Furthermore, when targeting, for example, the columnar object 11 at the second section, the inclination information 7, 83 of the columnar object 11 at the different section can be generated by the inclination analysis unit 123 using the reference value of the position of the base 11a of the columnar object 11 at the first section and the column head value of the column head 11b2 at the position of the second section, which is a different section.

[0092] As described above, the tilt analysis method, tilt analysis program, and tilt analysis device according to the embodiment of the present disclosure include a reference value acquisition step in which the reference value acquisition unit 121 acquires a reference value from a first position of the reflecting unit 310 of the device to be surveyed 300 attached to the base 11a of the column-shaped object 11, and a step in which, upon receiving an execution instruction from the input unit 140 to the column capital value acquisition unit 122 displayed on the display unit 150 of the terminal device 100, the column capital value acquisition unit 122 acquires a reference value from a second position of the reflecting unit 310 of the device to be surveyed 300 attached to the column capital 11b of the column-shaped object 11. By including a column value acquisition step for acquiring a column value, a tilt analysis step in which the tilt analysis unit 123 generates tilt information 7 indicating the direction in which the columnar object 11 is tilted based on the reference value and the column value, and a tilt information output step in which the tilt information output unit 124 displays the tilt information 7 (83) including a graphic display (first graphic 71a, second graphic 71b, graphics 71d, 71e, directional information 72, graphics 831, 832, etc.) on the display unit 150, it is possible to reduce the labor required for work such as re-placing the columnar object 11.

[0093] This concludes the description of the embodiment of the present invention, but the aspects of the present invention are not limited to this embodiment. For example, the pillar 11 may be a non-rectangular pillar, for example, a cylindrical pillar. The pillar 11 is not limited to a cylindrical pillar, and may be an elliptical pillar or other pillar having a shape other than a rectangular cross section.

[0094] Furthermore, in the configuration of this embodiment shown in Figure 1 etc., the surveying device 200 may be other equipment such as a surveying instrument (e.g., a layout navigator) that does not have a display unit and a telescope unit (telescope plummet) and can be remotely operated by the terminal device 100. [Explanation of symbols]

[0095] 1. Tilt analysis system 2. Workers 3 wire 7 Slope information 8 Reports 11,111~116 Columnar object 11a Column base 11b,11b2,11b3 Pillar head 60 Menu screen 61 Site name 62 Reference Measurement 63 Standard Setting 64 Construction Measurement 65 Settings 66 inputs 67 Output 68 Radiation Observation 69 Induction 71a First Figure 71b Second figure 71c Difference information 71c1 1st component 71c2 2nd component 71d Shape 71e Shape 72 Direction information 72a First component figure 72b Second component figure 72c Third component figure 73 Difference Information 73a 1st component 73b Second component 73c 3rd component 83 Slope information 100 Terminal Device 110 Terminal processing section 120 Terminal memory section 121 Reference value acquisition unit 122 Column value acquisition section 123 Slope analysis section 124 Tilt information output unit 125 Heterogenous stigma value acquisition section 126 Offset setting section 130 Terminal communication unit 140 Input section 150 Display section 200 Surveying equipment 210 Survey Department 211 Ranging section 212 Angle measurement section 220 Survey storage section 230 Survey and Communications Department 240 Survey Control Section 250 Tracking control unit 300 Surveyed equipment 310 Reflector 320 Mounting part 321 First Plane 322 Second Plane 400 reference points 621 Selection Screen 621a Reference axis measurement 621b Backsight Measurement (Known Point) 621c Backsight measurement (reference axis at origin) 622 Reference position selection screen 622a Record 623 Measurement result screen 623a Measurement results 624 Reference measurement selection screen 631 Criteria selection screen 631a Reference position setting 631b Reference Position List 632 Reference position setting screen 633 Reference position list screen 641 Measurement reference position selection screen 641a Reference position setting 641b Reference Position List 642 Tilt display screen 642a Point name 642b Surveyed device information setting 642c measurement screen 642d measurement screen 642e Record 643 Measurement reference position selection screen 644 Tilt display screen 645 Construction position registration screen 645 Registration Screen 645a OK button 646 Measurement reference position selection screen 647 Settings screen 647a~647c Input items 652a Point name 671 Output file selection screen 831 Shapes 832 shapes PC-centered b1~b3 distance

Claims

1. A method for analyzing the inclination of a pillar, comprising: a reference value acquisition step in which a reference value acquisition unit measures a first position of a reflecting unit of a surveyed device attached to a base of the pillar, and acquires a position offset from the measured first position by an offset amount of the reflecting unit relative to a center position of the pillar as a reference value which is the center position of the base; a column value acquisition step in which, when an execution instruction to the column value acquisition unit displayed on the display unit of the terminal device is received by an input unit, the column value acquisition unit acquires a position offset by the offset amount from the second position of the reflecting part of the surveyed device attached to the column head of the column-shaped object as a column value which is the center position of the column head; a tilt analysis step in which a tilt analysis unit generates tilt information indicating a direction in which the columnar object is tilted based on the reference value and the column capital value; a tilt information output step in which a tilt information output unit displays the tilt information including a graphic display on the display unit; Including slope analysis method.

2. A method for analyzing the inclination of a columnar object, comprising: a reference value acquiring step in which a reference value acquiring unit acquires a reference value from a first position of a reflecting unit of the device to be surveyed attached to a base of the column-shaped object; a column value acquisition step in which, when an execution instruction to the column value acquisition unit displayed on the display unit of the terminal device is received by an input unit, the column value acquisition unit acquires a column value from a second position of the reflecting part of the surveyed device attached to the column head of the column-shaped object; a tilt analysis step in which a tilt analysis unit generates tilt information indicating a direction in which the columnar object is tilted based on the reference value and the column capital value; a tilt information output step in which a tilt information output unit displays the tilt information including a graphic display on the display unit; displaying, by the display unit, the columnar object and candidate mounting positions of the device to be surveyed relative to the columnar object; an offset setting step of setting an offset amount of the reflecting part relative to a center position of the columnar object when the offset setting part receives an instruction to select the mounting position from the candidates by the input part, the reference value is obtained as a position offset by the offset amount from the first position, the column value is calculated as a position offset by the offset amount from the second position; Slope analysis method.

3. A tilt analysis method as described in claim 1 or claim 2, wherein the tilt information includes directional information indicating the direction from the column head to the column base, and differential information indicating the distance from the column head value to the reference value.

4. The direction information includes a first direction and a second direction perpendicular to the first direction; the difference information includes a first component in the first direction and a second component in the second direction; The method of tilt analysis according to claim 3 .

5. The tilt information includes a first figure showing the base of the column located at the reference value and a second figure showing the capital part of the column located at the capital value, the second graphic is arranged so as to be superimposable on the first graphic. The method for analyzing a gradient according to claim 3 or 4.

6. A tilt analysis method according to any one of claims 3 to 5, wherein the tilt information output unit includes a report output step of outputting a report in which a third figure representing the columnar object, the direction of the columnar object, the inspection date of the tilt information of the columnar object, the direction information, and the difference information are arranged in a corresponding manner.

7. 7. The method for analyzing a slope according to claim 6, wherein visual identification information indicating the degree of distance of the difference information is arranged in the document in correspondence with the columnar object.

8. The form is created for each section of the columnar object, The third graphic is displayed in an arrangement according to the above. The method for analyzing a gradient according to claim 6 or 7.

9. A tilt analysis program for analyzing the tilt of a columnar object, a reference value acquisition step in which a reference value acquisition unit measures a first position of a reflecting unit of a surveyed device attached to a base of the pillar, and acquires a position offset from the measured first position by an offset amount of the reflecting unit relative to a center position of the pillar as a reference value which is the center position of the base; a column value acquisition step in which, when an execution instruction to the column value acquisition instruction unit displayed on the display unit of the terminal device is received by an input unit, the column value acquisition unit acquires a position offset by the offset amount from the second position of the reflecting part of the surveyed device attached to the column head of the column-shaped object as the column value which is the center position of the column head; a tilt analysis step in which a tilt analysis unit generates tilt information indicating a direction in which the columnar object is tilted based on the reference value and the column capital value; a tilt information output step in which a tilt information output unit displays the tilt information including a graphic display on the display unit; A tilt analysis program for running the above on a computer.

10. a reference value acquisition unit that measures a first position of a reflecting unit of a surveyed device attached to a base of a column, and acquires a position offset from the measured first position by an offset amount of the reflecting unit relative to a center position of the column as a reference value that is the center position of the base; a column value acquisition unit that, when receiving an execution instruction for a column value acquisition instruction unit displayed on a display unit of a terminal device by an input unit, acquires a position offset by the offset amount from a second position of the reflecting part of the surveyed device attached to the column capital of the column-like object as a column value that is the center position of the column capital; a tilt analysis unit that generates tilt information indicating the direction in which the columnar object is tilted based on the reference value and the column capital value; a tilt information output unit that displays the tilt information including a graphic display on the display unit; A tilt analysis device comprising:

Images