Marking operation support method

Abstract

To provide a marking operation support method capable of drastically reducing an operation load on a marking operation.SOLUTION: A prism 1 is attached to a portable terminal 3. A computer calculates a position of the portable terminal 3 from a position of the prism 1 to be detected in a total station 2, and calculates a marking position with respect to the position of the portable terminal 3. In the portable terminal 3, a monitor 3b displays virtual marking positions 41a, 41b, 41c with the marking position as virtual information 40 by superimposition on a photographed image 31 to be photographed by photographing means 3a. An operator A inputs marking completion to the portable terminal 3 after a marking operation on a floor surface 5 corresponding to the virtual marking positions 41a, 41b, 41c to be displayed on the monitor 3b. Then, display of the virtual marking position displayed on the monitor 3b is changed into display of the marking completion.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a marking operation support method using a total station that tracks the position of a target prism and detects the position of the prism. [Background technology]

[0002] Patent Document 1 proposes a system that determines the marking position by measuring a prism. As shown in FIG. 1(A) of Patent Document 1, typical marking work is performed using a target prism and a computer that uses numerical data to indicate the installation position of the prism and the marking position. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-189612 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, determining marking positions while looking at numerical data displayed on a computer is a heavy workload.

[0005] An object of the present invention is to provide a marking-out operation support method that can significantly reduce the workload of marking-out operation. [Means for solving the problem]

[0006] The marking out operation support method of the present invention described in claim 1 is a marking out operation support method using a total station 2 that tracks the position of a target prism 1 and detects the position of the prism 1, and a mobile terminal 3 having an imaging means 3a, to perform marking out operation on a floor surface 5 corresponding to a marking out position that is set in advance in design drawing data, the prism 1 is attached to the mobile terminal 3, and a computer calculates the position of the mobile terminal 3 from the position of the prism 1 detected by the total station 2, and The marking position for the position is calculated, and in the mobile terminal 3, virtual marking positions 41a, 41b, 41c, which are virtual information 40 representing the marking positions, are superimposed on the captured image 31 captured by the imaging means 3a and displayed on the monitor 3b. After worker A has performed the marking work on the floor surface 5 corresponding to the virtual marking positions 41a, 41b, 41c displayed on the monitor 3b, a "marked" input is made to the mobile terminal 3, and the virtual marking position display displayed on the monitor 3b is switched to a "marked" display. The present invention described in claim 2 is characterized in that, in the marking work support method described in claim 1, the marking positions include a first marking position and a second marking position, and when the computer determines that the distance from the position of the mobile terminal 3 to the first marking position is closer than the distance from the position of the mobile terminal 3 to the second marking position, the monitor 3b guides the worker A to perform the marking work at the first marking position, and the worker A performs the marking work at the first marking position and inputs the marking completed information into the mobile terminal 3, whereby the monitor 3b guides the worker A to perform the marking work at the second marking position. The present invention described in claim 3 is characterized in that, in the marking work support method described in claim 1, the monitor 3b displays the number of marking positions, and when the worker A inputs the marking completed information, the monitor 3b reduces the number of marking positions displayed. The present invention as set forth in claim 4 provides the marking operation support method as set forth in claim 1, wherein the monitor 3b displays a virtual reference point 42a using a reference point 42a used in the survey of the floor surface 5 as the virtual information 40, The worker A positions the mobile terminal 3 on the floor surface 5 corresponding to the virtual reference point 42a displayed on the monitor 3b, thereby confirming the agreement between the captured image 31 and the virtual information 40. The present invention described in claim 5 is characterized in that, in the marking work support method described in claim 1, the monitor 3b has a first virtual display and a second virtual display, and when the angle of the mobile terminal 3 with respect to the floor surface 5 is equal to or less than a set angle, the first virtual display is displayed, and when the angle exceeds the set angle, the second virtual display is displayed, and the first virtual display allows the worker A to perform the marking work, and the second virtual display displays at least the marking positions that have not yet been worked on, and the worker A cannot perform the marking work. The present invention described in claim 6 is characterized in that, in the marking work support method described in any one of claims 1 to 5, the monitor 3b is arranged on the front surface of the portable terminal 3, the imaging means 3a is arranged on the back surface of the portable terminal 3, a connecting member 4 is attached to the back surface of the portable terminal 3, and the prism 1 is used by hanging it down from the portable terminal 3 via the connecting member 4. Effect of the Invention

[0007] According to the marking work support method of the present invention, a worker can perform marking work on the floor surface corresponding to the virtual marking position displayed superimposed on the captured image, so that the worker can hold the portable terminal in one hand to capture an image of the floor surface with the imaging means, and use the other hand to perform marking work at the marking position visible on the monitor, significantly reducing the workload of the marking work. [Brief description of the drawings]

[0008] [Figure 1] 1 is a conceptual diagram showing a marking operation according to an embodiment of the present invention and an apparatus used for the same operation; [Diagram 2] A flow diagram showing a method for supporting marking work according to the present embodiment. [Diagram 3] A monitor screen showing the display method for the same marking work support method DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] In the marking operation support method according to the first embodiment of the present invention, a prism is attached to a portable terminal, and a computer calculates the position of the portable terminal from the position of the prism detected by a total station, and calculates the marking position relative to the position of the portable terminal, and the portable terminal displays a virtual marking position, which is virtual information, on a monitor of the portable terminal, superimposing the virtual marking position on an image captured by an imaging means, and when a worker performs marking work on the floor surface corresponding to the virtual marking position displayed on the monitor, inputs "marked" to the portable terminal, so that the virtual marking position display displayed on the monitor switches to a "marked" display. According to this embodiment, the worker can perform marking work on the floor surface corresponding to the virtual marking position displayed superimposed on the captured image, so that the worker can hold the portable terminal in one hand, image the floor surface with the imaging means, and perform marking work on the marking position visually recognized on the monitor with the other hand, which significantly reduces the workload of the marking work.

[0010] A second embodiment of the present invention is a marking operation support method according to the first embodiment, in which the marking positions include a first marking position and a second marking position, and when the computer determines that the distance from the position of the mobile terminal to the first marking position is closer than the distance from the position of the mobile terminal to the second marking position, the monitor guides the worker to perform marking work at the first marking position, and the worker performs marking work at the first marking position and inputs "marked" information into the mobile terminal, whereby the monitor guides the worker to perform marking work at the second marking position. According to this embodiment, the marking work can be performed in order from the position closest to the worker, thereby shortening the travel distance and preventing omissions in the marking work.

[0011] The third embodiment of the present invention is a marking work support method according to the first embodiment, in which the number of marking positions is displayed on the monitor, and when the worker inputs that marking has been completed, the number of marking positions is reduced and displayed on the monitor. According to this embodiment, the worker can grasp the progress of the marking work.

[0012] The fourth embodiment of the present invention is a marking out operation support method according to the first embodiment, in which a virtual reference point is displayed on a monitor, the reference point used in the surveying of the floor surface being used as virtual information, and the worker checks whether the captured image and the virtual information match by positioning the mobile terminal on the floor surface corresponding to the virtual reference point displayed on the monitor. According to this embodiment, it is possible to prevent deviation between the captured image and the virtual information.

[0013] A fifth embodiment of the present invention is a marking support method according to the first embodiment, in which the monitor has a first virtual display and a second virtual display, and when the angle of the mobile terminal with respect to the floor surface is equal to or less than a set angle, the first virtual display is displayed, and when the angle exceeds the set angle, the second virtual display is displayed, and the first virtual display causes the worker to perform marking work, and the second virtual display displays at least unworked marking positions, so that the worker cannot perform marking work. According to this embodiment, when an image of a specific range of the floor surface at close range is captured, the first virtual display allows the worker to perform marking work, and when an image of a wider range of the floor surface is captured, the second virtual display displays at least unworked marking positions, making it easy to find unworked marking positions.

[0014] A sixth embodiment of the present invention is a marking operation support method according to any one of the first to fifth embodiments, in which a monitor is arranged on the front surface of the portable terminal, an imaging means is arranged on the rear surface of the portable terminal, a connecting member is attached to the rear surface of the portable terminal, and a prism is suspended from the portable terminal by the connecting member. According to this embodiment, the positional relationship between the portable terminal and the prism can be maintained constant, and the prism can be easily tracked by the total station. EXAMPLES

[0015] A marking operation support method according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a conceptual diagram showing the marking operation according to this embodiment and the device used for the operation. The marking operation support method according to this embodiment uses a total station 2 that tracks the position of a target prism 1 to detect the position of the prism 1, and a portable terminal 3 that has an imaging means 3a. A monitor 3b is arranged on the front side of the portable terminal 3, and an imaging means 3a is arranged on the rear side of the portable terminal 3. A connecting member 4 is attached to the rear side of the portable terminal 3, and the prism 1 is suspended from the portable terminal 3 by the connecting member 4. The total station 2 has a function of measuring the distance to the prism 1 and a function of detecting an angle, and has a function of tracking the prism 1. The total station 2 also has a communication function, and transmits the position information of the prism 1 to a computer. The mobile terminal 3 is, for example, a portable terminal such as a smartphone or a tablet terminal, and includes an imaging means 3a, a monitor 3b as a display means, and a computer. The mobile terminal 3 or the imaging means 3a preferably has a distance measurement function, and further preferably has an image recognition function for extracting feature points from the captured images 31, 32 (see FIG. 3). In this way, since the mobile terminal 3 has the distance measurement function to the imaged object and the image recognition function, it is possible to accurately superimpose and display virtual information 40 (see FIG. 3) from the design drawing data on the captured images 31, 32. The connection member 4 is a flexible pipe material of a predetermined length, one end of which can be attached to the rear surface of the mobile terminal 3, and the other end of the connection member 4 holds the prism 1.

[0016] Worker A holds a portable terminal 3 with a prism 1 attached as shown in Figure 1(b) in one hand and captures an image of a floor surface 5 with an imaging means 3a, and uses the other hand to perform marking work at the marking position visible on a monitor 3b as shown in Figure 1(a). In this manner, the worker A performs marking work on the floor surface 5 corresponding to the marking positions set in advance in the design drawing data. In this way, by attaching the connecting member 4 to the back surface of the portable terminal 3 and using the prism 1 to suspend it from the portable terminal 3 via the connecting member 4, it is possible to maintain a constant positional relationship between the portable terminal 3 and the prism 1, and it is also easy to track the prism 1 with the total station 2.

[0017] FIG. 2 is a flow chart showing the marking operation support method according to this embodiment. First, marking positions are set in advance in the design drawing data (S11). The marking out work is performed by placing a total station 2 on a floor surface 5 of a construction site or the like (S12). Worker A operates the portable terminal 3 to which the prism 1 is attached (S13). The total station 2 detects the position of the prism 1 (S14) and tracks the prism 1. The position of the prism 1 detected by the total station 2 is sent to a computer. The computer may be a server connected via a communication line, a mobile terminal 3, or a computer connected to the total station 2 by wire. The computer calculates the position of the portable terminal 3 from the position of the prism 1 detected by the total station 2 (S15), and calculates the marking position relative to the position of the portable terminal 3 using the design drawing data (S16). Since the relative positions of the prism 1 and the portable terminal 3 are determined by the connecting member 4, the position of the portable terminal 3 can be calculated from the position of the prism 1. The computer performs a matching process between the captured images 31, 32 and the design drawing data using the calculated position of the mobile terminal 3 and the feature points of the captured images 31, 32, and the mobile terminal 3 displays on the monitor 3b the virtual marking positions 41a, 41b, 41c (see Figure 3), which are virtual information 40 representing the marking positions, superimposed on the captured images 31, 32 captured by the imaging means 3a (S17). The virtual marking positions 41a, 41b, and 41c are calculated from the position of the mobile terminal 3 and the viewing angle and viewing direction of the imaging means 3a. The viewing direction of the imaging means 3a can be calculated by detecting the roll angle, pitch angle, and orientation of the mobile terminal 3 relative to the horizontal position by providing a sensor that detects the inclination and orientation of the mobile terminal 3. In this embodiment, since the marking work is performed while visually checking the virtual marking positions 41a, 41b, and 41c on the monitor 3b, the distance from the mobile terminal 3 to the floor surface during the marking work is about 50 cm or less. Therefore, if the mobile terminal 3 is inclined within 10 degrees from the horizontal position, even if the mobile terminal 3 is not in the horizontal position and the inclination of the mobile terminal 3 is not calculated, an error of about several millimeters will occur. After S15, a virtual reference point is displayed on the monitor 3b, with the reference point 42a (see Figure 3) used in surveying the floor surface 5 being used as virtual information 40, and by having the worker A position the mobile terminal 3 on the floor surface 5 corresponding to the virtual reference point displayed on the monitor 3b, the worker A can confirm that the captured images 31, 32 match the virtual information 40, thereby preventing any misalignment between the captured images 31, 32 and the virtual information 40.

[0018] The computer determines the virtual marking positions 41a, 41b, and 41c that are closest to the portable terminal 3 (S18), and displays on the monitor 3b a display to guide the worker A to the virtual marking positions 41a, 41b, and 41c that are closest to the portable terminal 3 (S19). For example, in a case where there are a first marking position and a second marking position, if the computer determines that the distance from the position of the mobile terminal 3 to the first marking position is closer than the distance from the position of the mobile terminal 3 to the second marking position, the monitor 3b will guide the worker A to perform marking work at the first marking position. The monitor 3b displays the detection state of the prism 1 by the total station 2 (S20). Worker A performs marking work on the floor surface 5 corresponding to the virtual marking positions 41a, 41b, 41c displayed on the monitor 3b (S21), and inputs "marked" information into the mobile terminal 3 (S22), causing the virtual marking position display displayed on the monitor 3b to switch to a "marked" display (S23). In the case where there are a first marking position and a second marking position, when worker A performs marking work at the first marking position (S21) and inputs that marking has been completed into the mobile terminal 3 (S22), because there is an unmarked position (No in S24), the monitor 3b guides worker A to perform marking work at the second marking position (S19). If there are no unworked marking positions (Yes in S24), the marking work ends (S25).

[0019] FIG. 3 is a monitor screen showing a display method in the marking operation support method according to this embodiment. FIG. 3(a) shows a first virtual display, and FIG. 3(b) shows a second virtual display. The monitor 3b has a first virtual display and a second virtual display, and displays the first virtual display when the angle of the mobile terminal 3 with respect to the floor surface 5 is equal to or less than a set angle, and displays the second virtual display when the angle exceeds the set angle. For example, the set angle is set to 10 degrees.

[0020] In the first virtual display shown in FIG. 3(a), worker A is instructed to perform marking work, and in the second virtual display shown in FIG. 3(b), at least unworked marking positions are displayed, and worker A cannot perform marking work. In FIG. 3(a), the monitor 3b displays the floor surface 5 in a specific range at close range as the captured image 31, and also displays virtual information 40. As the virtual information 40, three virtual marking positions 41a, 41b, and 41c are displayed. The virtual marked position 41a indicates a marked position for which a marked-up input has been made, and the marked-up indication is displayed in, for example, black. The virtual marking position 41b indicates the marking position closest to the mobile terminal 3, and is displayed in red, for example, and further guides the user to carry out marking work by using a circle or a blinking display. The virtual marking position 41c indicates a marking position that has not yet been worked on, and is displayed in pink, for example. In the state shown in Figure 3(a), worker A can perform marking work and input "marked out" information for virtual marking position 41b, but cannot perform marking work or input "marked out" information for virtual marking position 41a and virtual marking position 41c. In addition, the virtual information 40 includes reference points 42a and calculation points 42b used in surveying the floor surface 5, a direction display 43 of the total station 2, a display 44 of the marked-out input operation operated by worker A, a detection status display 45 of the prism 1, a display 46 of the number of unmarked positions, an estimated error display 47, and a horizontal display 48. When Worker A inputs that marking has been completed, the unmarked position count display 46 reduces the number of marking positions and displays it accordingly. Therefore, Worker A can grasp the progress of the marking work. In addition, the estimated error display 47 allows Worker A to perform marking work while checking that it is within a specified error range, and the horizontal display 48 eliminates the tilt of the mobile terminal, reducing the estimated error and improving the accuracy of the marking work.

[0021] In FIG. 3(b), a wider area of ​​the floor surface 5 is displayed as the captured image 32 on the monitor 3b, and virtual information 40 is also displayed. As the virtual information 40, virtual marking positions 41a and 41c are displayed. The virtual marked position 41a indicates a marked position for which a marked-up input has been made, and the marked-up indication is displayed in, for example, black. The virtual marking position 41c indicates a marking position that has not yet been worked on, and is displayed in pink, for example. Also displayed as virtual information 40 are reference points 42a and calculation points 42b used in surveying the floor surface 5, a direction display 43 of the total station 2, a detection status display 45 of the prism 1, and a display 46 of the number of unmarked positions. In addition, in Figure 3 (b), the virtual marking position 41b displayed in the first virtual display to guide the worker to perform marking work, the marked-out input operation display 44 operated by worker A, and the estimated error display 47 are not displayed.

[0022] According to this embodiment, worker A can perform marking work on the floor surface 5 corresponding to the virtual marking positions 41a, 41b, 41c displayed superimposed on the captured images 31, 32. Therefore, worker A can hold the portable terminal 3 in one hand to capture an image of the floor surface 5 with the imaging means 3a, and perform marking work at the marking positions visible on the monitor 3b with the other hand, thereby significantly reducing the workload of the marking work. Furthermore, according to this embodiment, when the computer determines that the distance from the position of the mobile terminal 3 to the first marking position is closer than the distance from the position of the mobile terminal 3 to the second marking position, the monitor 3b guides the worker A to perform marking work at the first marking position, and when the worker A performs marking work at the first marking position and inputs that marking has been completed into the mobile terminal 3, the monitor 3b guides the worker A to perform marking work at the second marking position, so that the marking work can be performed in order from the position closest to the worker A, shortening the travel distance and preventing missing marking work. Furthermore, according to this embodiment, when an image of a specific range of the floor surface 5 at close range is captured, marking out work can be performed using the first virtual display, and when an image of a wider area of ​​the floor surface 5 is captured, at least unworked marking positions are displayed using the second virtual display, making it easier to find unworked marking positions. [Industrial Applicability]

[0023] The present invention is suitable for marking out work at various construction sites such as civil engineering and construction sites. [Explanation of symbols]

[0024] 1 Prism 2. Total Station 3. Mobile devices 3a Imaging means 3b Monitor 4 Connection parts 5. Floor 31, 32 Captured images 40 Virtual Information 41a, 41b, 41c Virtual marking position 42a Reference point 42b Calculation point 43 direction display 44 Marked input operation display 45 Detection status display 46 Display of number of unfinished marking positions 47 Estimation error display 48 horizontal display A Worker

Claims

1. A marking operation support method for performing marking operation on a floor surface corresponding to a marking position preset in design drawing data, using a total station that tracks the position of a target prism and detects the position of the prism, and a mobile terminal having an imaging means, comprising: Attaching the prism to the mobile terminal; A computer calculates a position of the mobile terminal from the position of the prism detected by the total station, and calculates the marking position relative to the position of the mobile terminal; In the mobile terminal, a virtual marking position, which is virtual information of the marking position, is superimposed on the captured image captured by the imaging means and displayed on a monitor; When a worker performs the marking work on the floor surface corresponding to the virtual marking position displayed on the monitor and then inputs a "marked" state to the mobile terminal, the virtual marking position display displayed on the monitor is switched to a "marked" state. A marking out operation support method comprising:

2. The marking positions include a first marking position and a second marking position, When the computer determines that the distance from the position of the mobile terminal to the first marking position is closer than the distance from the position of the mobile terminal to the second marking position, The monitor guides the worker to perform the marking work at the first marking position, The worker performs the marking work at the first marking position and inputs the marking completed information to the mobile terminal, and the monitor guides the worker to perform the marking work at the second marking position. The marking operation support method according to claim 1 .

3. The monitor displays the number of the marking positions, When the worker inputs the marked out position, the number of the marked out positions is reduced and displayed on the monitor. The marking operation support method according to claim 1 .

4. a virtual reference point is displayed on the monitor, the virtual reference point being the reference point used in the survey of the floor surface; The worker positions the mobile terminal on the floor surface corresponding to the virtual reference point displayed on the monitor, thereby confirming whether the captured image and the virtual information match. The marking operation support method according to claim 1 .

5. the monitor has a first virtual display and a second virtual display; When the angle of the mobile terminal with respect to the floor surface is equal to or smaller than a set angle, the first virtual display is displayed, and when the angle exceeds the set angle, the second virtual display is displayed. In the first virtual display, the worker is caused to perform the marking work; In the second virtual display, at least the marking positions that have not been worked on are displayed, and the worker is not allowed to perform the marking work. The marking operation support method according to claim 1 .

6. the monitor is disposed on a front surface of the mobile terminal, and the imaging means is disposed on a rear surface of the mobile terminal; A connection member is attached to the rear surface of the mobile terminal; The prism is suspended from the mobile terminal by the connecting member. The marking operation support method according to any one of claims 1 to 5.

Images