Surveying system, surveying method, and program

Abstract

To provide a system that allows a single surveyor to carry out level surveying of a survey point with a simple system configuration.SOLUTION: A surveying system includes: an acquisition unit that acquires an image of a level rod provided at a survey point from an imaging unit that is provided in a level instrument for measuring the height of a survey point, and images the level rod; a display processing unit that displays an operation screen including the image on a display unit and accepts input of user operation to the operation screen; and a control unit that controls a rotation unit to rotate the level instrument in response to the operation input.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a surveying system, a surveying method, and a program. [Background technology]

[0002] A system that enables a single surveyor to carry out a surveying operation has been disclosed (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-229350 Summary of the Invention [Problem to be solved by the invention]

[0004] The surveying system described in Patent Document 1 includes a laser surveying device with a target tracking function and a remote control device for remotely operating the laser surveying device on the target side. The target receives tracking light from the laser surveying device from all directions and includes a prism that can reflect the light. The surveying system measures the distance by analyzing the tracking light reflected from the target.

[0005] The surveying system described in Patent Document 1 requires a trackable target and an expensive and complicated configuration for analyzing the tracking light reflected from the target, which results in an increase in the cost of the surveying work. Furthermore, since this surveying system is an indirect height survey that calculates height based on distance and angle, it also results in a problem of reduced accuracy in height surveying compared to direct height surveying that directly measures a staff to determine height.

[0006] In view of the above, an object of the present invention is to provide a system that allows a single surveyor to carry out level surveying of a survey point with a simple system configuration. [Means for solving the problem]

[0007] A surveying system according to one aspect of the present invention comprises an imaging unit provided in a level instrument for surveying the height of a survey point, an acquisition unit that acquires an image of a level rod from the imaging unit that images the level rod provided at the survey point, a display processing unit that displays an operation screen including the image on a display unit and accepts user operation inputs to the operation screen, and a control unit that controls a rotation unit to rotate the level instrument based on the operation input.

[0008] A surveying method according to one aspect of the present invention involves a computer acquiring an image of a leveling rod from an imaging unit provided in a leveling instrument for measuring the height of a surveying point, the imaging unit imaging the leveling rod provided at the surveying point; displaying an operation screen including the image on a display unit, accepting user operation inputs to the operation screen; and controlling a rotation unit for rotating the leveling instrument based on the operation inputs.

[0009] A program according to one aspect of the present invention causes a computer to perform the following operations: acquire an image of a leveling rod from an imaging unit provided in a leveling instrument for measuring the height of a surveying point, the imaging unit capturing an image of the leveling rod provided at the surveying point; display an operation screen including the image on a display unit, accept user operation input on the operation screen; and control a rotation unit for rotating the leveling instrument based on the operation input. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a system that enables a single surveyor to carry out level surveying of a survey point with a simple system configuration. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram illustrating an overview of a surveying system. [Figure 2] FIG. 1 is a diagram showing an example of a part of a level device. [Figure 3] FIG. 10 is a diagram showing an example of a survey result D221. [Figure 4] FIG. 10 is a diagram showing an example of automatic measurement information D222. [Figure 5] FIG. 10 is a diagram illustrating an example of automatic surveying. [Figure 6] 10 is an example of a selection screen T10. [Figure 7] 10 is an example of a manual survey start screen T20. [Figure 8] 10 is an example of an operation screen T30. [Figure 9] 10 is an example of an automatic survey start screen T40. [Figure 10] 10 is an example of a survey result display screen T50. [Figure 11] FIG. 10 is a flow chart showing an example of a processing procedure of the surveying system. [Figure 12] FIG. 2 illustrates an example of a hardware configuration of a computer. DETAILED DESCRIPTION OF THE INVENTION

[0012] A preferred embodiment of the present invention (hereinafter referred to as "the present embodiment") will be described with reference to the accompanying drawings. In each drawing, components with the same reference numerals have the same or similar configurations. In this embodiment, "unit," "means," "device," and "system" do not simply mean physical means, but also include cases where the functions of the "unit," "means," "device," and "system" are realized by software. Furthermore, the functions of one "unit," "means," "device," or "system" may be realized by two or more physical means or devices, or the functions of two or more "units," "means," "device," or "system" may be realized by one physical means or device.

[0013] ===Survey System 10 Overview=== An overview of a surveying system 10 will be described with reference to Fig. 1. Fig. 1 is a diagram showing an overview of the surveying system 10.

[0014] The surveying system 10 is a system that enables a surveyor to independently measure the height of a predetermined surveying point. The surveying system 10 enables the surveyor to remotely operate the level device 100 by operating the user terminal 300 while holding a staff at the surveying point, for example, thereby enabling the surveyor to independently carry out the surveying. As a result, the surveying system 10, with its simple system configuration, can reduce the number of surveying workers required for the surveying, thereby reducing costs.

[0015] <<Configuration Overview>> An outline of the configuration of a surveying system 10 will be described with reference to Fig. 1. As shown in Fig. 1, the surveying system 10 includes a leveling device 100, a surveying control device 200, and a user terminal 300.

[0016] The level device 100 is a device that measures the height of a survey point. The level device 100 is equipped with an imaging unit 120, and measures the height of the survey point by capturing an image of a level staff 150 installed at the survey point with the imaging unit 120. The level device 100 transmits information about the image captured by the imaging unit 120 (hereinafter referred to as "image information") and information showing the results of surveying the survey point (hereinafter referred to as "survey information") to the survey control device 200.

[0017] The survey control device 200 transmits a screen including image information and survey information (hereinafter referred to as a "survey screen") to the user terminal 300. The survey control device 200 also transmits information for controlling the level device 100 (hereinafter referred to as "control information") to the level device 100.

[0018] The user terminal 300 displays a survey screen on a display unit. The user terminal 300 transmits control information to the survey control device 200 based on an operation input by the user on the survey screen.

[0019] As a result, the surveying system 10 enables a single surveyor to perform surveying by remotely operating the level device 100 while holding the staff 150. In other words, the surveying system 10 allows a single surveyor to perform surveying work that previously required multiple surveyors, thanks to its simple system configuration, thereby improving work efficiency at construction sites and reducing work costs.

[0020] The level device 100 is a device capable of performing surveying by analyzing an image showing a staff 150 on which a barcode is displayed, for example, and is a so-called digital level meter. The level device 100 may be a level meter that does not have the function of analyzing images. In that case, the image may be analyzed in the survey control device 200 to generate surveying information. In the following, as an example, the level device 100 will be described as a digital level meter.

[0021] The survey control device 200 may be, for example, a cloud computer, a server computer, a personal computer (e.g., desktop, laptop, tablet, etc.), a media computing platform (e.g., cable, satellite set-top box, digital video recorder), a handheld computing device (e.g., PDA, email client, etc.), or any other type of computing or communications platform.

[0022] The user terminal 300 may be, for example, a smartphone, a mobile phone (feature phone), a personal computer (e.g., a desktop, laptop, tablet, etc.), a media computing platform (e.g., a cable or satellite set-top box, a digital video recorder), a handheld computing device (e.g., a personal digital assistant (PDA), an email client, etc.), a wearable device (e.g., a glasses-type device, a watch-type device, etc.), or another type of computer or communication platform.

[0023] <<Processing Overview>> An overview of the processing of the surveying system 10 will be described with reference to FIG.

[0024] In step S10, the level device 100 is set horizontally at an arbitrary point.

[0025] In step S11, the surveyor sets up the staff 150 at the survey point. The user terminal 300 acquires a survey screen including an image of the staff 150 from the survey control device 200, and displays the survey screen on the display unit.

[0026] In step S12, the user terminal 300 transmits control information (hereinafter referred to as "rotation control information") for adjusting the imaging direction of the level device 100 to the level device 100 based on the user's operation input on the surveying screen. Also, the user terminal 300 transmits control information (hereinafter referred to as "survey control information") for starting surveying to the level device 100 based on the user's operation input.

[0027] In step S13, the survey control device 200 acquires the survey information from the level device 100. The survey control device 200 stores the survey information and transmits a survey screen including the survey information to the user terminal 300. In this way, the survey system 10 has a simple system configuration and enables a single survey worker to survey a survey point.

[0028] ===Configuration of Survey System 10=== The configuration of a surveying system 10 will be described with reference to Fig. 1. The configurations of the level device 100, surveying control device 200, and user terminal 300 that make up the surveying system 10 will be described below in order.

[0029] <<Leveling device 100>> The configuration of the level device 100 will be described with reference to Figures 1 and 2. Figure 2 is a diagram showing an example of a portion of the level device 100.

[0030] 1, the level device 100 includes, for example, a level instrument 110, an imaging unit 120, a rotating unit 130, a tripod 140, and a leveling rod 150. Although the level instrument 110 and the rotating unit 130 have been described as being configured separately, this is not limitative, and the level device 100 may be configured with the level instrument 110 and the rotating unit 130 integrated together. In the following, as an example, the level device 100 will be described as being configured with the level instrument 110 and the rotating unit 130 being configured separately.

[0031] The level instrument 110 is an instrument capable of reading the display of the level staff 150. The level instrument 110 is, for example, a digital level meter. As shown in FIG. 2 , the level instrument 110 includes a measurement sensor 111, a calculation processing unit 112, and a surveying telescope 113.

[0032] The measurement sensor 111 is a sensor capable of acquiring an image of the staff 150, which is, for example, a barcode staff, and includes an imaging device (not shown). The imaging device is a camera device equipped with an imaging element such as a CCD or CMOS, capable of capturing an image of the barcode staff.

[0033] The arithmetic processing unit 112 calculates the height of the measurement point based on the image of the barcode staff captured by the measurement sensor 111. Information about the calculated height of the measurement point is stored in a storage device (not shown).

[0034] The surveying telescope 113 is a telescope for aiming, for example, at a staff 150. A cross-shaped survey line is provided on either side of the lens of the surveying telescope 113. In other words, the surveying telescope 113 is configured so that the cross-shaped survey line appears in the field of view when the staff 150 is observed through its observation port 113a. Hereinafter, the horizontal line on the cross-shaped survey line will be referred to as the "horizontal collimation line," and the perpendicular line will be referred to as the "vertical collimation line." An imaging unit 120, which will be described later, is attached to the observation port 113a of the surveying telescope 113.

[0035] In the above description, the level instrument 110 is described as being a digital level meter, but this is not limiting. The level instrument 110 does not have to be equipped with the measurement sensor 111 and the calculation processing unit 112. Even in this case, the surveyor can measure the height of the survey point by checking the survey screen displayed on the user terminal 300. For convenience, the following description will be given assuming that the level instrument 110 is a digital level meter.

[0036] The imaging unit 120 is, for example, a camera device with a wireless communication function. The imaging unit 120 includes, for example, an imaging element such as a CCD or a CMOS. As shown in Fig. 2, the imaging unit 120 is fixed to the observation port 113a of the surveying telescope 113 by a jig 121. The imaging unit 120 acquires an image of the staff 150 through the surveying telescope 113.

[0037] In the above description, the imaging unit 120 of the level instrument 110 is fixed to the surveying telescope 113 via the jig 121, but this is not limiting. The level device 100 may be configured such that the level instrument 110 and the imaging unit 120 are integrated.

[0038] The rotation unit 130 is, for example, a rotatable platform to which the level instrument 110 is fixed. The rotation unit 130 rotates the main surface on which the level instrument 110 is horizontally fixed along a horizontal plane based on the rotation control information, thereby changing the orientation of the level instrument 110. That is, the surveying operator can rotate the level instrument 110 in a desired orientation by remotely controlling the rotation unit 130 using the user terminal 300.

[0039] The tripod 140 is a support member that supports the level gauge 110 and the rotating part 130 .

[0040] The staff 150 is a rod-shaped scale. The staff 150 is, for example, a self-reading staff with a printed scale, or a staff with a predetermined pattern such as a barcode printed on it (hereinafter referred to as a "barcode staff"). The level instrument 110 reads the barcode staff with the measurement sensor 111, and the calculation processing unit 112 calculates the height of the survey point. In other words, if the level instrument 110 is a digital level instrument, the surveyor does not need to write down height information on paper or the like, which reduces the workload of the surveyor.

[0041] <<Survey control device 200>> The survey control device 200 will be described with reference to Figures 1, 3, 4, and 5. As shown in Figure 1, the survey control device 200 includes, for example, a transmitting / receiving unit 210, a storage unit 220, a control unit 230, a calculation unit 240, and a display processing unit 250.

[0042] The transmitting / receiving unit 210 (acquisition unit) transmits and receives various information between the level device 100 and the user terminal 300. Specifically, the transmitting / receiving unit 210 acquires image information and measurement information from the level device 100, and transmits information related to the measurement screen to the level device 100. In addition, the transmitting / receiving unit 210 acquires control information from the user terminal 300, and transmits the control information to the level device 100.

[0043] The storage unit 220 stores the survey results D221 and the automatic survey information D222.

[0044] The survey result D221 will be described with reference to FIG. 3. FIG. 3 is a diagram showing an example of the survey result D221. By referring to the survey result D221, the survey control device 200 can calculate the height of the survey point based on the height of the reference point and provide the survey result to the survey worker. As shown in FIG. 3, the survey result D221 may include items such as [Point ID], [Point Name], and [Survey Information]. [Point ID] stores a point ID that can uniquely identify the survey point. [Survey Information] stores, for example, survey information that is the result of surveying each point. Note that the survey information is not limited to information indicating the result of surveying each point, and may also store, for example, information indicating the ground elevation of each point provided by a public institution and information indicating the ground elevation of each point that is preset by a specified worker (hereinafter, such information will be referred to as "reference information").

[0045] The automatic surveying information D222 will be described with reference to Fig. 4. Fig. 4 is a diagram showing an example of the automatic surveying information D222. The survey control device 200 can perform automatic surveying, which will be described later, by referring to the automatic surveying information D222. As shown in Fig. 4, the automatic surveying information D222 may include, for example, items such as [Point ID], [Survey coordinates], and [Design information]. [Point ID] stores a point ID that can uniquely identify a surveying point. [Survey coordinates] stores the X, Y, and Z coordinates of the surveying point. [Design information] stores the design height (design ground elevation) at the surveying point.

[0046] The control unit 230 controls the level instrument 110 and the rotation unit 130. Specifically, the control unit 230 controls the level instrument 110 based on survey control information acquired through the transmission / reception unit 210. The control unit 230 also controls the rotation unit 130 based on rotation control information acquired through the transmission / reception unit 210.

[0047] The control unit 230 executes automatic surveying, which is a surveying method different from the manual surveying shown in Fig. 1. Automatic surveying is a process of automatically setting the direction of the level instrument 110 so that each of a plurality of surveying points can be surveyed using a reference point as a reference point. An example of automatic surveying will be described with reference to Fig. 5. Fig. 5 is a diagram showing an example of automatic surveying.

[0048] 5, based on an operation input to the user terminal 300 by a surveyor, the control unit 230 causes the imaging unit 120 to capture an image of the staff 150 provided at the coordinates of a first reference point (hereinafter referred to as "first reference coordinate Z1") that serves as the basis for the surveying, from the level instrument 110 installed at an arbitrary point P. This enables the control unit 230 to identify a first positional relationship between the first reference coordinate Z1 and the level instrument 110 (for example, the direction of the first reference coordinate Z1 relative to the arbitrary point P, the distance between the arbitrary point P and the first reference coordinate Z1, etc.).

[0049] Next, based on the user's operation input to the user terminal 300, the control unit 230 causes the imaging unit 120 to capture an image of the staff 150 provided at the coordinates of a second reference point (hereinafter referred to as the "second reference coordinate Z2"), which is a reference different from the first reference coordinate, from the level instrument 110. This allows the control unit 230 to identify a second positional relationship between the second reference coordinate Z2 and the level instrument 110 (for example, the direction of the second reference coordinate Z2 relative to an arbitrary point P, the distance between the arbitrary point P and the second reference coordinate Z2, etc.).

[0050] Next, the control unit 230 identifies the coordinates of an arbitrary point P where the level instrument 110 is installed (hereinafter referred to as "level instrument coordinate L1") based on the first positional relationship and the second positional relationship. The control unit 230 refers to the automatic surveying information D222 and identifies a rotation angle θn around the level instrument coordinate L1 between either the first reference coordinate Z1 or the second reference coordinate Z2 and the coordinates (hereinafter referred to as "measurement point coordinates") of at least one surveying point (hereinafter referred to as "target surveying point BLn") among the multiple surveying points.

[0051] Next, the control unit 230 transmits rotation control information for rotating the rotation unit 130 by the rotation angle θn to the level device 100 via the transmitting / receiving unit 210. The control unit 230 specifies the rotation angle for each of the plurality of measurement points.

[0052] As a result, the survey control device 200 can reduce the amount of work required for survey workers to adjust the direction of the level instrument 110 for multiple survey points that are surveyed regularly, for example, and can also shorten the time required for survey work, thereby reducing the work costs required for surveying.

[0053] The processing related to the above-described automatic surveying may be executed by the calculation processing unit 112 of the level device 100. In this case, the calculation processing unit 112, upon receiving a user's operation input to a first survey start button T43 and a second survey start button T46 on an automatic survey start screen T40 (described later), specifies the first positional relationship and the second positional relationship, specifies the level instrument coordinate L1, and specifies the rotation angle θn.

[0054] When the level instrument 110 does not have the calculation processing unit 112, that is, when the level instrument 110 is not a digital level meter, the calculation unit 240 is a functional unit that calculates the height of the survey point based on the image of the staff 150 acquired from the imaging unit 120. In other words, when the level instrument 110 is a digital level meter, the survey control device 200 does not need to have the calculation unit 240. Specifically, the calculation unit 240 identifies the staff 150 shown in the image, performs image analysis processing, and calculates the height of the survey point based on the positional relationship between the horizontal line of sight and the scale or a predetermined pattern (barcode) on the staff.

[0055] The display processing unit 250 generates a measurement screen. Examples of the measurement screen generated by the display processing unit 250 will be described with reference to Figs.

[0056] The selection screen T10 will be described with reference to Fig. 6. Fig. 6 is an example of the selection screen T10. The selection screen T10 is a screen on which the main menu is displayed, and is a screen that is displayed when a surveyor selects manual surveying or automatic surveying, or when checking past surveying information. This allows the surveying system 10 to allow the surveyor to select a desired surveying method and start the surveying by the surveyor.

[0057] As shown in Figure 6, the selection screen T10 includes a site information display area T11, a manual survey selection button T12, an automatic survey selection button T13, a survey data display button T14, a settings button T15, a communication status check button T16, and a logout button T17.

[0058] The site information display area T11 is a display area in which various conditions such as the site name, surveying date and time, surveying workers, and weather are displayed.

[0059] The manual survey selection button T12 is a button for executing a manual survey. When the survey control device 200 receives a user operation input on the manual survey selection button T12, it transitions to a manual survey start screen T20, which will be described later.

[0060] The automatic survey selection button T13 is a button for executing an automatic survey. When the survey control device 200 receives a user operation input on the automatic survey selection button T13, it transitions to an automatic survey start screen T40, which will be described later.

[0061] The survey data display button T14 is a button for displaying past observation results. When the survey control device 200 receives a user operation input to the survey data display button T14, it transitions to a screen (not shown) where survey information from past surveys can be downloaded.

[0062] The setting button T15 is a button for making various settings. The communication status check button T16 is a button for displaying a screen on which the communication status between the level device 100 and the user terminal 300 can be checked. The logout button T17 is a button for logging out.

[0063] The manual survey start screen T20 will be described with reference to Fig. 7. Fig. 7 is an example of the manual survey start screen T20. The manual survey start screen T20 is a screen that is displayed when starting a manual survey. This allows the surveying system 10 to start a manual survey using a reference point as a reference point in a simple procedure.

[0064] As shown in FIG. 7, the manual survey start screen T20 includes a reference point selection area T21, a reference point elevation display area T22, a survey start button T23, and a cancel button T24.

[0065] The reference point selection area T21 is an area for setting a reference point based on a selection operation by the user. When the survey control device 200 receives an operation input by the user into the reference point selection area T21, the survey control device 200 displays, for example, the location names of the reference points stored in the survey result D221 in a pull-down menu.

[0066] The reference point elevation display area T22 is a display area where the ground elevation of the reference point set in the reference point selection area T21 is displayed. When a predetermined reference point is set by a user's operation input, the survey control device 200 displays the ground elevation included in the reference information of the reference point by referring to the survey result D221.

[0067] The survey start button T23 is a button for transitioning to the operation screen T30. That is, when the survey control device 200 receives a user operation input to the survey start button T23, it proceeds with the process of surveying using the reference point selected in the reference point selection area T21 as a reference point.

[0068] The cancel button T24 is a button for transitioning to the selection screen T10.

[0069] The operation screen T30 will be described with reference to Fig. 8. Fig. 8 is an example of the operation screen T30. The operation screen T30 is a screen that is displayed when a surveyor controls the level device 100 while holding the staff 150.

[0070] As shown in Figure 8, the operation screen T30 includes a survey image display area T31, a mark operation object T32, a survey mark T33, a rotation button T34, a left / right movement button T35, an angle adjustment button T36, a survey execution button T37, and a continuous survey button T38.

[0071] The survey image display area T31 is a display area where an image captured by the imaging unit 120 is displayed. As shown in Fig. 8, the survey image display area T31 displays a horizontal collimation line T31a and a vertical collimation line T31b provided on the surveying telescope 113.

[0072] The mark operating object T32 is an object for operating a survey mark T33, which will be described later. When the survey control device 200 receives an operation input from the user to the mark operating object T32, it moves the mark operating object T32 on a straight line in the left-right direction in accordance with the user's operation.

[0073] The survey mark T33 moves along the horizontal line of sight T31a following the movement of the mark operation object T32. As shown in Fig. 8(A), the survey control device 200 accepts an operation input from the user and sets the survey mark T33 so that it overlaps with the scale 150 displayed in the survey image display area T31.

[0074] The rotation button T34 is a button for rotating the rotation unit 130. As shown in Fig. 8(B), when the surveying control device 200 receives a user operation input to the rotation button T34, it rotates the rotation unit 130 so as to move the surveying mark T33 to the center of the surveying image display area T31.

[0075] Specifically, the survey control device 200 associates, for example, the survey mark T33 with the image displayed in the survey image display area T31, and calculates the rotation angle of the rotation unit 130 based on the distance on the screen between the survey mark T33 and the center of the survey image display area T31. The survey control device 200 transmits rotation control information to the rotation unit 130 for rotating the rotation unit 130 by the calculated rotation angle. As a result, as shown in FIG. 8(B), the vertical collimation line T31b in the survey image display area T31 overlaps with the staff 150 in the image displayed in the survey image display area T31. The level instrument 110 cannot measure the height of the survey point based on the staff 150 unless the vertical collimation line T31b and the staff 150 overlap. That is, the survey control device 200 makes it possible to easily and accurately carry out a survey based on the staff 150 by using the mark operation object T32, the survey mark T33, and the rotation button T34.

[0076] The left / right operation button T35 is a button that transmits rotation control information to the rotation unit 130 for rotating the rotation unit 130 by the rotation angle selected by the angle adjustment button T36.

[0077] The survey execution button T37 is a button for causing the level instrument 110 to execute a survey. The survey control device 200 transmits survey control information to the level instrument 110 when it receives an operation input from the user via the survey execution button T37.

[0078] When the survey control device 200 receives survey information from the level instrument 110 as a result of transmitting the survey control information to the level instrument 110, the survey control device 200 may display a dialog box (not shown) on the operation screen T30 to display the survey information. The dialog box displays, for example, the survey information (the height of the point measured by the level instrument 110, the reading of the staff 150, the ground elevation of the survey point, etc.) and an input box in which the name of the survey point can be set. This allows the survey control device 200 to quickly notify the survey operator of the survey results.

[0079] In addition, if the survey control device 200 sends survey control information to the level instrument 110 when the vertical line of sight T31b and the staff 150 do not overlap, it may receive an error message from the level instrument 110 indicating that the survey cannot be performed.

[0080] The continuous survey button T38 is a button for executing continuous surveying. Continuous surveying is a process executed by, for example, the control unit 230. While in manual surveying, the survey execution button T37 must be selected each time a survey is performed, continuous processing does not require the selection of the survey execution button T37 each time a survey is performed, and measurement control information is sent to the level instrument 110 at continuous intervals. In continuous surveying, for example, a dialog box (not shown) is displayed in a part of the operation screen T30 in FIG. 8. The dialog box displays, for example, survey information (e.g., horizontal angle, ground elevation, difference from design value, etc.) that is the result of the survey at continuous intervals.

[0081] By performing continuous surveying, the survey control device 200 can allow the surveyor to grasp the height of the surveying point in real time, for example, when the height of the surveying point changes in a short period of time. This allows the surveying information to be acquired at continuous timing.

[0082] The automatic survey start screen T40 will be described with reference to Fig. 9. Fig. 9 is an example of the automatic survey start screen T40. The automatic survey start screen T40 is a screen that is displayed when a surveyor carries out an automatic survey using the level device 100 while holding the staff 150. This enables the surveying system 10 to start an automatic survey using a reference point as a reference point in a simple procedure.

[0083] As shown in Figure 9, the automatic survey start screen T40 includes a first reference point selection area T41, a first reference point display area T42, a first survey start button T43, a second reference point selection area T44, a second reference point display area T45, a second survey start button T46, a calculation button T47, an automatic survey start button T48, and a cancel button T49.

[0084] The first reference point selection area T41 is an area for selecting a first reference point based on a selection operation by the user. When the survey control device 200 receives a user operation input to the first reference point selection area T41, it displays, for example, the location names of the reference points stored in the survey result D221 in a pull-down menu.

[0085] The first reference point display area T42 is a display area where information about the first reference point set in the first reference point selection area T41 is displayed. When a first reference point is set by a user's operation input, the survey control device 200 displays the coordinates and ground elevation of the set first reference point in the first reference point display area T42 by referring to the automatic surveying information D222. This enables the survey control device 200 to perform automatic surveying with a simple procedure.

[0086] The first survey start button T43 is a button for transitioning to the operation screen T30. That is, when the survey control device 200 receives a user's operation input to the first survey start button T43, it acquires survey information of the first reference point set in the first reference point selection area T41. The survey control device 200, for example, reflects the acquired survey information in the first reference point display area T42 (e.g., ground elevation, etc.).

[0087] The second reference point selection area T44, the second reference point display area T45, and the second survey start button T46 are similar to the first reference point selection area T41, the first reference point display area T42, and the first survey start button T43, respectively, and therefore their explanation will be omitted. This allows the second reference point to be set in the automatic survey.

[0088] The calculation button T47 is a button for executing a process of calculating the level instrument coordinate L1 of the level instrument 110 based on the first positional relationship with the first reference point and the second positional relationship with the second reference point.

[0089] The automatic survey start button T48 is a button for starting an automatic survey. For example, when the survey control device 200 receives a user operation input to the automatic survey start button T48, the survey control device 200 transitions to a survey result display screen T50, which will be described later.

[0090] The survey result display screen T50 will be described with reference to Fig. 10. Fig. 10 is an example of the survey result display screen T50. The survey result display screen T50 is a screen on which a surveying operator can check the survey results.

[0091] As shown in FIG. 10, the survey result display screen T50 includes a design data change button T51, an automatic survey result display area T52, an automatic rotation setting button T53, an automatic survey setting button T54, an automatic survey start button T55, and an end button T56.

[0092] The design data change button T51 is a button for transitioning to a screen (not shown) where design data can be changed.

[0093] The automatic survey result display area T52 is a display area where the results of an automatic survey are displayed. Specifically, the automatic survey result display area T52 includes, for example, the name of the surveying point, the surveyed ground elevation, the difference between the ground elevation and the design value, and the design value. This allows the survey control device 200 to quickly present the surveying results to the surveying worker, thereby improving the work efficiency of the surveying worker.

[0094] The automatic rotation setting button T53 is a button for automatically rotating the rotation unit 130 so that the level instrument 110 faces each of a plurality of survey points during automatic surveying. When the automatic rotation setting button T53 is selected and the survey control device 200 receives a user operation input via the automatic survey start button T55 (described later), the survey control device 200 transmits rotation control information to the rotation unit 130 for rotating the rotation unit 130 so that the level instrument 110 faces each of a plurality of survey points in a predetermined order for each of the survey points. In this case, the survey control device 200 may also select a measurement point name in the automatic survey result display area T52, for example, and rotate the rotation unit 130 so that the level instrument 110 faces the survey point corresponding to the selected measurement point name.

[0095] As a result, the survey control device 200 can rotate the rotating unit 130 and automatically point the level instrument 110 toward each of a plurality of survey points. The surveyor can then measure the staff 150 (held by the surveyor) installed at the survey point while checking the operation screen T30. Therefore, the survey control device 200, with its simple system configuration and processing procedure, can reduce the amount of work required for the surveyor to carry out the survey and shorten the time required for the survey work.

[0096] The automatic survey setting button T54 is a button for automatically rotating the rotation unit 130 to each of a plurality of survey points in an automatic survey to perform a survey. When the automatic survey setting button T54 is selected and the survey control device 200 receives a user operation input to an automatic survey start button T55 (described later), for example, the survey control device 200 rotates the rotation unit 130 so as to point the level instrument 110 at each of the plurality of survey points in a predetermined order, without transitioning to the operation screen T30, and performs a survey using the level instrument 110.

[0097] As a result, the survey control device 200 can rotate the rotating unit 130 and automatically point the level instrument 110 at each of a plurality of survey points to conduct a survey. Therefore, with a simple system configuration and processing procedure, the survey control device 200 can reduce the amount of work required for surveying by survey workers and shorten the time required for surveying work.

[0098] The automatic survey start button T55 is a button for starting an automatic survey. That is, when the survey control device 200 receives a user operation input to the automatic survey start button T55 while the above-mentioned automatic rotation setting button T53 or the automatic survey setting button T54 is selected, the survey control device 200 executes an automatic survey.

[0099] The end button T56 is a button for ending the process of executing automatic surveying and transitioning to, for example, the selection screen T10.

[0100] <<User terminal 300>> Returning to Fig. 1, the configuration of the user terminal 300 will be described. The user terminal 300 displays, for example, various information and a survey screen acquired from the survey control device 200 on the display unit 1007. As shown in Fig. 1, the user terminal 300 includes, for example, a transmission / reception unit 310 and a display unit 320. The transmission / reception unit 310 transmits and receives various information and a survey screen to and from the survey control device 200. The display unit 320 displays, for example, a survey screen on the display unit 1007.

[0101] ===Survey System 10 Processing=== Next, the processing procedure of the surveying system 10 will be described with reference to Fig. 11. Fig. 11 is a flow diagram showing an example of the processing procedure of the surveying system 10. In Fig. 11, for convenience, the work of the surveying worker is shown in a dashed frame, and the processing of each device is shown in a solid frame. Furthermore, although the height of the surveying point is calculated based on the height of the reference point, for convenience, the following description will be given assuming that the height of the reference point has been surveyed and stored in the survey result D221 before step S101.

[0102] In step S100, the surveyor sets up the tripod 140 at an arbitrary point. The surveyor installs the rotating part 130 on top of the tripod 140 and fixes the level instrument 110 to the rotating part 130. The surveyor adjusts the level instrument 110 so that it is horizontal.

[0103] In step S101, a surveyor moves to a surveying point and sets up a staff 150 at the surveying point.

[0104] In step S102, the level device 100 acquires an image of the staff 150 installed at the surveying point, and transmits image information including the image to the surveying control device 200.

[0105] In step S103, the survey control device 200 transmits to the user terminal 300 a selection screen T10 on which manual surveying or automatic surveying can be selected.

[0106] In step S104, when the user terminal 300 receives an operation input from the user on the selection screen T10, it transmits selection information indicating the content selected by the user to the survey control device 200.

[0107] In step S105, the survey control device 200 transmits the manual survey start screen T20 or the automatic survey start screen T40 to the user terminal 300 based on the selection information.

[0108] In step S106, when manual surveying is selected, the user terminal 300, upon receiving a user operation input into the reference point selection area T21 of the manual surveying start screen T20, acquires information on the ground height GL of the reference point set by the user from the surveying control device 200 and displays the ground height in the reference point height display area T22.

[0109] In addition, when automatic surveying is selected, the user terminal 300, upon receiving user operation input into the first reference point selection area T41 and the second reference point selection area T44 of the automatic surveying start screen T40, displays information regarding the reference point set by the user from the surveying control device 200 in the first reference point display area T42 and the second reference point display area T45.

[0110] In step S107, when the user terminal 300 receives an operation input to the survey start button T23 on the manual survey start screen T20, or the first survey start button T43 or the second survey start button T46 on the automatic survey start screen T40, it sends start information indicating that the survey will be started to the survey control device 200.

[0111] In step S108, the survey control device 200 transmits the operation screen T30 to the user terminal 300 upon receiving the start information from the user terminal 300.

[0112] In step S109, the user terminal 300 accepts the user's operation input to the mark operation object T32 and the rotation button T34 on the operation screen T30. Based on the user's operation input, the user terminal 300 transmits to the survey control device 200 rotation control information for operating the rotation unit 130 of the level device 100 so that the staff 150 overlaps with the vertical line of sight.

[0113] In step S110, the survey control device 200 transmits the rotation control information to the level device 100.

[0114] In step S111, the level device 100 rotates the rotation unit 130 based on the rotation control information. The level device 100 transmits the image information after the rotation to the survey control device 200. The survey control device 200 transmits the operation screen T30 including the image to the user terminal 300.

[0115] In step S112, when the user terminal 300 receives an operation input from the user to the survey execution button T37 on the operation screen T30, it transmits to the survey control device 200 survey control information for starting the survey of the survey point.

[0116] In step S113, the survey control device 200 transmits the survey control information to the level device 100.

[0117] In step S114, the level device 100 focuses the surveying telescope 113 based on the survey control information, and calculates the height of the surveying point based on the image of the staff 150 installed at the surveying point. Note that the surveying control device 200 may also calculate the height of the surveying point based on the image of the staff 150. The level device 100 transmits surveying information including information indicating the height of the surveying point to the surveying control device 200.

[0118] In step S115, the survey control device 200 stores the survey information in the storage unit 220.

[0119] In step S116, the surveying operator moves to another survey point. The surveying system 10 repeats the process from step S107.

[0120] ===Hardware Configuration=== An example of the hardware configuration when the level device 100, the survey control device 200, and the user terminal 300 are realized by a computer will be described with reference to Fig. 12. Fig. 12 is a diagram showing an example of the hardware configuration of the computer 1000.

[0121] As shown in FIG. 12, the computer 1000 includes a processor 1001, a memory 1002, a storage device 1003, an input I / F unit 1004, a data I / F unit 1005, a communication I / F unit 1006, and a display unit 1007.

[0122] The processor 1001 is a control unit that controls various processes in the computer 1000 by executing programs stored in the memory 1002 .

[0123] The memory 1002 is a storage medium such as a RAM (Random Access Memory), etc. The memory 1002 temporarily stores the program code of the program executed by the processor 1001 and data required when the program is executed.

[0124] The storage device 1003 is a non-volatile storage medium such as a hard disk drive (HDD), flash memory, etc. The storage device 1003 stores an operating system and various programs for realizing the above-mentioned components.

[0125] The input I / F unit 1004 is a device for receiving input from a user. Specific examples of the input I / F unit 1004 include a keyboard, a mouse, a touch panel, various sensors, and a wearable device. The input I / F unit 1004 may be connected to the computer 1000 via an interface such as a USB (Universal Serial Bus).

[0126] The data I / F unit 1005 is a device for inputting data from outside the computer 1000. A specific example of the data I / F unit 1005 is a drive device for reading data stored in various storage media. The data I / F unit 1005 may be provided outside the computer 1000. In this case, the data I / F unit 1005 is connected to the computer 1000 via an interface such as a USB.

[0127] The communication I / F unit 1006 is a device for performing data communication via the Internet N, either wired or wirelessly, with devices external to the computer 1000. The communication I / F unit 1006 may be provided external to the computer 1000. In this case, the communication I / F unit 1006 is connected to the computer 1000 via an interface such as a USB.

[0128] The display unit 1007 is a device for displaying various types of information. Specific examples of the display unit 1007 include a liquid crystal display, an organic EL (Electro-Luminescence) display, and a display of a wearable device. The display unit 1007 may be provided outside the computer 1000. In this case, the display unit 1007 is connected to the computer 1000 via, for example, a display cable. Furthermore, when a touch panel is used as the input I / F unit 1004, the display unit 1007 can be configured as an integrated unit with the input I / F unit 1004.

[0129] ===Summary=== <1> The surveying system 10 in this embodiment is an imaging unit 120 provided in a level instrument 110 for surveying the height of a surveying point, and includes a transmitting / receiving unit 210 (acquisition unit) that acquires a captured image of a staff 150 provided at the surveying point from the imaging unit 120 that captures an image of the staff 150, a display processing unit 250 that displays an operation screen T30 including the captured image on a display unit 1007 and accepts operation inputs from the user to the operation screen T30, and a control unit 230 that controls a rotation unit 130 (for example, a pan head) for rotating the level instrument 110 based on the operation input. As a result, the surveying system 10 has a simple system configuration that enables a single surveyor to perform level surveying of a surveying point.

[0130] <2> In the surveying system 10 of this embodiment, the transmitter / receiver 210 (acquisition unit) is an imaging unit 120 provided on one side of the lens of the surveying telescope 113 (telescope) of the level instrument 110, and acquires an image from the imaging unit 120 that images the staff 150 through the surveying telescope 113 (telescope). As a result, the surveying system 10 uses an existing level instrument 110 and simply attaches the imaging unit 120 to the level instrument 110, without having to improve the existing level instrument or use an expensive level instrument, thereby enabling a survey worker to carry out surveying work alone without incurring high costs.

[0131] <3> In the surveying system 10 of this embodiment, the staff 150 is a staff 150 on which a predetermined pattern is printed, and the transmitting / receiving unit 210 (acquisition unit) acquires from the level instrument 110 an index relating to the height of the position where the staff 150 is installed, which is identified by the level instrument 110 based on the staff 150 shown in the captured image and the horizontal collimation line, which is a horizontal line shown in the captured image. As a result, the surveying system 10 uses a level instrument that can read barcode staffs, enabling quick surveying with a simple system configuration.

[0132] <4> In the surveying system 10 of this embodiment, the display processing unit 250 displays, on the display unit 1007, a survey mark T33 that moves along a horizontal collimation line, which is a horizontal line that appears in the captured image, based on a user's operation input to the operation screen T30, and the control unit 230 rotates the rotation unit 130 (platform head) based on a user's operation input to a survey execution button T37 (control button) included in the operation screen T30, so that the survey mark T33 overlaps with a vertical collimation line, which is a perpendicular line that passes through the center of the captured image. This improves the operability of the surveying system 10, making it possible for the surveyor to operate the level device 100 intuitively from a remote location and read the value of the staff 150.

[0133] <5> In the surveying system 10 of this embodiment, the control unit 230 identifies a level instrument coordinate L1, which is the coordinate of a level instrument 110 installed at an arbitrary point, based on a first reference coordinate Z1, which is a reference coordinate, and a second reference coordinate Z2, which is a reference coordinate different from the first reference coordinate Z1, and identifies a rotation angle θ around the level instrument coordinate L1 between either the first reference coordinate Z1 or the second reference coordinate Z2 and the measurement point coordinate, which is the coordinate of a target survey point BLn, which is at least one survey point among multiple survey points, and rotates the rotation unit 130 (platform) of the level instrument 110 facing either the first reference coordinate Z1 or the second reference coordinate Z2 by the rotation angle θ, causing the imaging unit 120 to image the level staff 150 installed at the target survey point BLn. As a result, the surveying system 10 can reduce the amount of work required for survey workers to adjust the direction of the level instrument 110 for multiple surveying points that are surveyed periodically, and can also shorten the time required for surveying work, thereby reducing the work costs required for surveying.

[0134] <6> The surveying system 10 in this embodiment further includes a calculation unit 240 that calculates an index relating to the height of the position where the staff 150 is installed, based on the staff 150 shown in the captured image and the horizontal collimation line, which is a horizontal line shown in the captured image. This allows the surveying system 10 to perform independent surveying work using an analog level meter, which is cheaper than a digital level meter, thereby further reducing costs.

[0135] <7> The surveying system 10 in this embodiment further includes a level instrument 110 and an imaging unit 120. As a result, the surveying system 10 has a simple system configuration that enables a single surveyor to perform level surveying of a survey point.

[0136] Note that this embodiment is an example for explaining the present invention, and is not intended to limit the present invention to only this embodiment. Furthermore, various modifications of the present invention are possible without departing from the spirit of the present invention. Furthermore, the components of the level device 100, the survey control device 200, and the user terminal 300 in the surveying system 10 described in the above embodiment are assumed to be realized in cooperation with other hardware by the processor 1001 executing a program stored in the storage device 1003. In other words, these components can be considered as software or firmware, as well as corresponding hardware, and in both of these concepts, they can also be described as "functions," "means," "sections," "processing circuits," "units," or "modules," and can be interpreted as such. [Explanation of symbols]

[0137] 10...Surveying system, 100...Leveling device, 110...Leveling instrument, 120...Imaging unit, 130...Rotating unit, 140...Tripod, 150...Staff, 200...Surveying control device, 210...Transmitting / receiving unit, 220...Memory unit, 230...Control unit, 240...Calculation unit, 250...Display processing unit, 300...User terminal.

Claims

1. an acquisition unit that acquires an image of a level staff from an imaging unit that is provided in a level instrument for measuring the height of a survey point and that captures an image of the level staff provided at the survey point; a display processing unit that displays an operation screen including the captured image on a display unit and receives operation input from a user on the operation screen; a control unit that controls a rotation unit for rotating the level measuring instrument based on the operation input; A surveying system comprising:

2. the acquiring unit is the imaging unit provided on one side of a lens of a telescope of the level instrument, and acquires the captured image from the imaging unit that images the staff through the telescope. The surveying system according to claim 1 .

3. the staff is a staff on which a predetermined pattern is printed, the acquiring unit acquires from the level instrument an index relating to a height of a position where the staff is installed, the index being identified by the level instrument based on the staff shown in the captured image and a horizontal line of sight that is a horizontal line shown in the captured image; The surveying system according to claim 1 .

4. the display processing unit displays, on the display unit, a measurement mark that moves along a horizontal collimation line, which is a horizontal line that appears in the captured image, based on an operation input by a user to the operation screen; the control unit rotates the rotation unit based on a user's operation input to a control button included in the operation screen so that the measurement mark overlaps with a vertical collimation line, which is a perpendicular line passing through the center of the captured image. The surveying system according to claim 1 .

5. The control unit Identifying level instrument coordinates, which are coordinates of the level instrument provided at an arbitrary point, based on first reference coordinates, which are coordinates serving as a reference, and second reference coordinates, which are coordinates serving as a reference different from the first reference coordinates; Identifying a rotation angle, around the level instrument coordinates, between either the first reference coordinates or the second reference coordinates and a measurement point coordinate, which is the coordinate of a target survey point that is at least one of a plurality of survey points; the rotating unit of the level instrument facing either the first reference coordinate system or the second reference coordinate system is rotated by the rotation angle, and the imaging unit is caused to capture an image of the staff installed at the target survey point. The surveying system according to claim 1 .

6. a calculation unit that calculates an index relating to the height of a position where the staff is installed based on the staff shown in the captured image and a horizontal collimation line that is a horizontal line shown in the captured image, The surveying system according to claim 1 .

7. The level instrument; the imaging unit; The surveying system according to claim 1 or claim 2, further comprising:

8. The computer An imaging unit is provided in a level instrument for measuring the height of a survey point, and the imaging unit images a staff provided at the survey point, thereby acquiring an image of the staff; displaying an operation screen including the captured image on a display unit, and receiving an operation input from a user on the operation screen; Controlling a rotation unit for rotating the level meter based on the operation input; A surveying method for carrying out

9. On the computer, An imaging unit is provided in a level instrument for measuring the height of a survey point, and the imaging unit images a staff provided at the survey point, thereby acquiring an image of the staff; displaying an operation screen including the captured image on a display unit, and receiving an operation input from a user on the operation screen; Controlling a rotation unit for rotating the level meter based on the operation input; A program to execute.

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