JP2023172957A - Survey system, survey method, and survey program - Google Patents

Abstract

To provide a survey system, survey method and survey program, which enable efficient observation of the current condition.SOLUTION: A survey system is provided, comprising a survey unit for surveying positions of survey points, and a control unit configured to cause the survey unit to survey a survey point by orienting a survey direction of the survey unit to a direction of design coordinates of the survey point and, in the presence of a large difference between surveyed actual coordinates and the design coordinates, causes the survey unit to re-survey coordinates offset from the design coordinates by a difference between the design coordinates and the actual coordinates in a height direction.SELECTED DRAWING: Figure 6

Description

The present disclosure relates to a surveying system, a surveying method, and a surveying program.

BACKGROUND ART Conventionally, techniques have been proposed for observing the current condition of roads using surveying equipment. For example, in Patent Document 1, a laser range finder has a second calculator part that uses a distance finder and a calculator to set a discretized three-dimensional polar coordinate system (R, θxj, θyj) on a vehicle passing road surface. A road cross section measuring device for forming a road cross section is disclosed.

Patent No. 4059832

When observing the current condition of land currently in use, such as roads, it may be necessary to restrict the access of vehicles and people to the work area by restricting lanes, etc. Furthermore, the shape of the land may change over time, and even if the design coordinates of a survey point are known during current observation, it is not easy to confirm whether the intended survey point has been surveyed. In such observation of the current situation, it is desired to shorten the working time on the land concerned, simplify the work contents, or reduce the number of personnel required.

The present disclosure aims to provide a surveying system, a surveying method, and a surveying program that efficiently conduct current state observation.

In order to achieve the above-mentioned object, a surveying system according to the present disclosure includes a surveying section that surveys the position of a survey point, and a surveying section that directs the surveying direction of the surveying section in the direction of the design coordinates of the survey point. Control to survey a point and re-survey coordinates by offsetting the difference in the height direction between the design coordinates and the actual measurement coordinates from the design coordinates when the difference between the surveyed actual measurement coordinates and the design coordinates is large. It is equipped with a section and a section.

In order to achieve the above object, a surveying method according to the present disclosure includes a step in which a surveying section of a surveying device surveys the position of a survey point, and a step in which the surveying section of the surveying section points the surveying direction in the direction of the design coordinates of the survey point. A point is surveyed by the surveying section, and when the difference between the surveyed actual measured coordinates and the designed coordinates is large, coordinates obtained by offsetting the difference in the height direction between the designed coordinates and the actual measured coordinates from the designed coordinates. including the step of resurveying.

In order to achieve the above object, a surveying program according to the present disclosure includes a step in which a surveying section of a surveying device surveys the position of a survey point, and a step in which a surveying section of the surveying device points the surveying direction in the direction of the design coordinates of the survey point. A point is surveyed by the surveying section, and when the difference between the surveyed actual measured coordinates and the designed coordinates is large, coordinates obtained by offsetting the difference in the height direction between the designed coordinates and the actual measured coordinates from the designed coordinates. A process of resurveying the area.

According to the surveying system, surveying method, and surveying program according to the present disclosure that use the above means, it is possible to efficiently observe the current situation.

1 is an overall configuration diagram of a staking support system according to an embodiment of the present disclosure. FIG. 2 is a control block diagram of a surveying device and a terminal in the surveying system. FIG. 3 is a diagram showing transitions of screens displayed on a display unit of a terminal. It is a flowchart showing the steps of work and processing using the surveying system. FIG. 2 is a plan view illustrating surveying in the surveying system. It is a side view explaining surveying in a surveying system. FIG. 3 is a diagram showing an editing screen. It is a figure explaining continuous automatic observation. It is a flowchart showing work and processing steps using a surveying system including a continuous automatic observation function.

Hereinafter, embodiments of the present disclosure will be described based on the drawings.

FIG. 1 is an overall configuration diagram of a surveying system 1 according to an embodiment of the present disclosure. Further, FIG. 2 is a control block diagram of the surveying device 2 and the terminal 3. In the description of this embodiment, each device and its arrangement are schematically shown for convenience of explanation, and may differ from the actual scale or arrangement.

The surveying system 1 includes a surveying device 2 and a terminal 3. The surveying device 2 is, for example, a total station, and is installed on a leg portion 23 such as a tripod, and has a function of performing surveying by measuring the angle and distance to a survey point 4 on a route such as a road. The surveying device 2 is provided with a leveling section (detailed configuration not shown) that is removably attached to the leg section 23 and performs leveling, and a leveling section that is leveled by the leveling section and is rotatable around a vertical axis. The main body part 21 is provided with a telescope part 22 rotatably provided on the main body part 21 around a horizontal axis. Therefore, the telescope section 22 is provided so as to be rotatable around the horizontal and vertical axes with respect to the leveling section. Leveling may be performed manually by a user (for example, a worker, operator, etc.) by adjusting a leveling section, or may be performed automatically. The surveying device 2 also includes a computer (not shown) for controlling the surveying device 2.

FIG. 2 is a control block diagram of the surveying device 2 and the terminal 3. First, a communication unit 201 shown as a configuration of the surveying device 2 is configured to be able to communicate with an external device such as a terminal 3, and is, for example, a wireless communication means such as Bluetooth (registered trademark). Note that the communication unit 201 may function as a wired communication means via a connection terminal.

The storage unit 202 is configured to be able to store various data such as non-transitory programs such as surveying programs, survey data, GPS time, and the size (height, width, depth, etc.) of the surveying device 2.

The display section 203 is provided, for example, at the rear part of the main body section 21. The operation unit 204 is an operation means through which various operation instructions and settings can be input. For example, the operation instructions can include turning the power on or off, a trigger to start surveying, switching the surveying mode, setting the surveying cycle, and the like. Further, the operation unit 204 may include any operation device or input device such as a switch, button, or dial. In this embodiment, since the display section 203 is a touch panel formed integrally with the operation section 204, the display section 203 and the operation section 204 have a function as a reception section.

The rotation drive section 205 has a function of controlling the main body section 21 of the surveying device 2 so that it can rotate in the horizontal direction around the vertical axis. Further, the rotation driving section 205 has a function of controlling the telescope section 22 so as to be rotatable in the vertical direction around the horizontal axis.

The surveying unit 206 has a function of surveying the position of the survey point 4. The surveying section 206 includes a distance measuring section 206a and an angle measuring section 206b. The distance measurement unit 206a includes a light transmission unit that emits distance measurement light, and a light reception unit that receives reflected light that is irradiated with the distance measurement light from the light transmission unit and reflected by the surveying target (for example, measurement point 4). including. The distance measuring unit 206a measures the distance (oblique distance) from the surveying device 2 to the measuring point 4 by emitting distance measuring light, which is, for example, a pulsed laser beam, and receiving reflected light reflected by the surveying target. . Note that the distance measuring method is not limited to such a pulse method, and it is also possible to apply a well-known method such as a so-called phase difference method that measures distance based on the number of waves of a laser beam, for example.

The angle measuring section 206b also functions as a horizontal encoder that detects the rotation angle of the main body section 21 in the horizontal direction (i.e., the rotation angle around the vertical axis), and the function as a horizontal encoder that detects the rotation angle of the telescope section 22 in the vertical direction (i.e., the horizontal rotation angle). It functions as a vertical encoder that detects the rotation angle around the axis. The telescope section 22 includes a telescope including an optical system capable of collimating the survey target. The telescope section 22 has a built-in distance measuring section 206a including a distance measuring optical system, and a part of the optical path of the distance measuring optical system of this distance measuring section 206a is shared with a part of the optical system of the telescope. The light emitted from the distance measuring section 206a described above is guided coaxially with the collimation axis of the telescope and is emitted. Further, the light reflected by the object to be surveyed and received from the outside is guided along the collimation axis of the telescope, and is received by the distance measuring section 206a.

The control unit 207 acquires, stores, and calculates various information such as the angle (horizontal angle and vertical angle) detected by the angle measurement unit 206b and the distance (oblique distance) measured by the distance measurement unit 206a. For example, the obtained results and calculation results are displayed on the display unit 203. The control unit 207 also sends various information such as the angle (horizontal angle and vertical angle) detected by the angle measurement unit 206b and the distance (oblique distance) measured by the distance measurement unit 206a via the communication unit 201. Send to terminal 3. The control unit 207 performs drive control of each unit in response to an operation on the operation unit 204 or in response to a calculation result.

The terminal 3 has a survey instruction function for the survey point 4. As the terminal 3, for example, a device such as a personal digital assistant (PDA), a smartphone, or a personal computer that can be carried by the user can be used. As shown in FIG. 2, the terminal 3 includes a control section 31, a communication section 32, an operation section 33 (reception section), a display section 34, and a storage section 35. Further, the terminal 3 includes a computer (not shown) for controlling the operation of the terminal 3. The communication unit 32 is configured to be able to communicate with external equipment such as the surveying device 2, and is, for example, a wireless communication means such as Bluetooth (registered trademark). Note that the communication unit 32 may function as a wired communication means via a connection terminal.

The operation unit 33 is an operation means that can input various instructions and settings to the terminal 3. Further, the display section 34 is formed of a liquid crystal display or the like. In this embodiment, the display section 34 is a touch panel formed integrally with the operation section 33, and the display section 34 and the operation section 33 have a function as a reception section. When the display unit 34 is a touch panel, the operation unit 33 can receive input operations from the user using a pressure-sensitive type, an electrostatic type, or the like. Furthermore, a survey program screen can be displayed on the display unit 34 (see FIG. 3).

The storage unit 35 stores information such as design data 351, survey data 352, survey program 353, and the like. The design data 351 is, for example, route data 5 (see also the map screen 62 in FIG. 3) created in advance by CAD using a device (or equipment) separate from the terminal 3, and the identification of each station 4. It includes information (for example, measurement point name) and design coordinates corresponding to the identification information. The survey data 352 is the actually measured coordinates of the survey point 4 that the surveying device 2 acquired through surveying or calculated from the survey results. Note that the coordinate expression format can be any format such as three-dimensional orthogonal coordinates or polar coordinates. Moreover, the surveying program 353 of this embodiment can be stored as a non-transitory program, for example, in a computer-readable storage medium (or storage device) included in the terminal 3.

The terminal 3 has a function of displaying a screen associated with the execution of the surveying program 353 on the display unit 34, and transmitting a surveying instruction signal to the surveying device 2 based on an input instruction by the user via the operation unit 33.

FIG. 4 is a diagram showing screens displayed on the display unit 34 of the terminal 3, including a cross-sectional observation setting screen 61, a cross-sectional observation map screen 62, a waiting screen 63 indicating that surveying is in progress, and a cross-sectional observation editing screen 64. It shows. Menu items on each screen (setting screen 61, map screen 62, editing screen 64) are selected and executed by the user's touch operation or selection operation via a push button switch.

The setting screen 61 is a menu item for setting cross-sectional observation. The setting screen 61 includes a route selection section 611 , a standard cross section selection section 612 , a cross section selection section 613 , a continuous observation switching section 614 , a pitch setting section 615 , and a retry number setting section 616 . The route selection unit 611 has a function of selecting a route that includes the cross section 51 of the survey target from a plurality of route data 5 included in the design data 351. In the example of FIG. 3, the route data 5 with the route name "rs" is selected in the route selection section 611.

The standard cross section selection unit 612 has a function of selecting a design value for the cross section 51 in the route data 5 from design values (also referred to as "standard cross sections") registered in advance using CAD or the like or by manual input. Thereby, the measurement point 4 (observation point) of the cross section 51 can be linked to the selected standard cross section.

The cross-section selection unit 613 has a function of selecting a cross-section 51 to be surveyed from a plurality of cross-sections 51 included in the selected route data 5. In the example of FIG. 3, the cross-section selection unit 613 selects the cross-section 51 “BP”. The continuous observation switching unit 614 has a function of switching whether or not to perform continuous measurement of a plurality of cross sections 51 included in the selected route data 5. For example, when a substantially rectangular check box located at the right end of the continuous observation switching unit 614 is selected by a user operation via the operating unit 33, the continuous measurement function of the cross section 51 can be switched on or off. .

The pitch setting unit 615 has a function of setting a survey interval (or measurement pitch) that is an observation interval of the survey points 4 in the cross section 51 selected as a survey target. The survey interval is the interval between the survey points 4 on the cross section 51, and is set to, for example, an interval of 50 cm. The survey interval is set, for example, by the user inputting a numerical value in meters into the pitch setting section 615. In the example of FIG. 3, the survey interval is set to 0.5 m.

The retry count setting unit 616 has a function of setting a limit number of times (permissible number of times) of resurveying of the measuring point 4 when the measured value (actual measured coordinate P2) of the measuring point 4 by the surveying device 2 is not within the appropriate range. . In the example of FIG. 3, the retry count setting section 616 is set to "3 times". In this case, if the surveying device 2 determines that further resurveying is necessary in the third resurvey of the surveying point 4 (step S07; Yes, described below), the surveying device 2 replaces the surveying point 4 with another unsurveyed surveying point. Switch to 4.

The map screen 62 displays route data 5 set in the route selection section 611 of the setting screen 61 (in the example of FIG. 3, route data 5 with route name "rs"). The map screen 62 also includes a measurement point name display section 621, a cross section name display section 622, a first distance display section 623, and a second distance display section 624.

The currently selected measuring point 4 (for example, measuring point 4 "117") is displayed in the measuring point name display section 621. The currently selected cross section 51 (for example, cross section 51 "BP") is displayed in the cross section name display section 622. The first distance display section 623 displays the distance in the transverse direction D4 (see FIG. 5) between the currently selected survey point 4 and the center line CL on the currently selected cross section 51. The second distance display section 624 shows the distance in the height direction between the currently selected measuring point 4 on the currently selected cross section 51 and the measuring point 4 on the center line CL or the intersection of the center line CL and the cross section 51. (height difference) is displayed.

Further, at the lower right position of the map screen 62, a start button 625 and a skip button 626 are arranged side by side on the left and right. The start button 625 has a function to start surveying the measurement point 4 on the cross section 51. The skip button 626 has a function of skipping the surveying on the currently selected cross section 51 and switching the selection to the next cross section 51 in the longitudinal direction D3 (see FIG. 5).

The wait screen 63 for cross-sectional surveying is a screen indicating that the surveying device 2 is currently surveying the surveying point 4 . When the surveying device 2 is currently surveying the survey point 4, the waiting screen 63 displays the words "Measuring" and a C ring-shaped icon 631 in the center of the entire screen to indicate that the survey is in progress. be done.

The cross-sectional observation editing screen 64 includes a station layout map 641 and station information display sections 642 and 643. The survey point information display section 642 displays information about the survey point 4 where the survey was last performed. Furthermore, the measurement point information display section 643 displays information on other measurement points 4 other than the measurement point information display section 642.

The survey point layout map 641 has a function of displaying the route data 5. In the example of FIG. 3, a cross section 51 of the route data 5 and a center line LC in the longitudinal direction D3 are displayed. Further, a plurality of measurement points 4 are arranged on the cross section 51. The measurement point information display sections 642 and 643 display information regarding the measurement point 4. The measurement point information display section 642 is arranged below the measurement point layout map 641 and above the measurement point information display section 643. The upper station information display section 642 displays link on/off setting information and distance from the center line CL, corresponding to the identification information of station 4 (for example, station name "123"). . Also, in the lower station information display section 643, information corresponding to the identification information of station 4 (for example, station name "101", "102", "103", "104", or "110", etc.) is displayed. , the link on or off setting information, the distance from the center line CL, and the distance in the height direction between the measuring point 4 and the intersection of the measuring point 4 on the center line CL or the center line CL and the cross section 51 (height difference) is displayed. By using the "link" function of the measurement point information display sections 642 and 643, it is possible to connect the measurement point 4 with the measurement point 4 on another cross section 51, for example. Normally, when conducting cross-sectional observation, each measuring point 4 is judged by the distance from the center line CL (route center), and a line drawn in a straight line from the left end to the right end is connected to the same cross-section. It is treated as surface 51. This link function can be set for each observation. For example, unlike the above-mentioned rule for connecting lines in a single stroke, it is possible to connect a certain measurement point 4 to the measurement point 4 observed immediately before in chronological order. Thereby, it becomes possible to connect the measurement points 4 to be observed in a Z-shape or a straight downhill shape (for example, a straight line or a curved shape in the longitudinal direction D3).

Next, each work or process using the surveying system 1 will be explained with reference to the flowchart of FIG. 4. In step S01, the surveying device 2 is installed at a position around the survey point 4 to be surveyed by a user such as a worker.

In step S02, the surveying device 2 installs instrument stations. Specifically, the surveying device 2 performs surveying using a benchmark (not shown) as an origin, and determines its own coordinates using a preset reference direction as a reference coordinate axis. The reference direction may be determined based on design data stored in advance by the surveying device 2, or the surveying device 2 may survey a reference direction point different from the origin and set the reference direction (for example, , the reference point direction D2) in FIG. 5 may be used as the reference coordinate axis.

In step S03, the terminal 3 uses the control unit 31 to generate the route data 5 of the route for which the surveying device 2 is to perform cross-sectional observation based on the user's instructions input from the operation unit 33 (reception unit), and the route data. The selection of the cross section 51 included in 5 is accepted. Selection of route data 5 and cross section 51 to be surveyed is accepted by route selection section 611 and cross section selection section 613 in FIG. 3 .

In step S04, the terminal 3 receives settings for the surveying interval of the cross-sectional observation of the surveying device 2 and the number of retries for resurveying based on the user's instructions input from the operation unit 33 (receiving unit). Specifically, the control unit 31 receives settings for the surveying interval and the number of retries for the survey points 4 to be surveyed in the cross section 51 selected by the pitch setting unit 615 and the retry count setting unit 616 in FIG. 3 . Note that one or both of the pitch setting unit 615 and the number of retries setting unit 616 may have a function of selecting the surveying pitch and number of retries from preset values as a function of setting the surveying pitch and number of retries.

In step S05, upon receiving the selection of the start button 625 from the user, the control unit 31 transmits a survey instruction to the surveying device 2, and causes the surveying device 2 to perform the measurement on the cross section 51 of the route data 5 selected in step S03. Start surveying point 4.

In step S06, the surveying device 2 surveys each measuring point 4 on the selected cross section 51 at the surveying interval set in step S04. Here, a method of surveying the survey point 4 will be explained with reference to FIGS. 5 and 6. FIG. 5 is a plan view illustrating surveying in the surveying system 1, and FIG. 6 is a side view of the ranging light Lt viewed from the horizontal direction P direction orthogonal to the ranging light Lt during surveying in the surveying system 1. be. First, the surveying device 2 acquires the design coordinates of the survey point 4 preset based on the design data 351 from the terminal 3 or the like. The surveying device 2 uses the surveying section 206 to survey the surveying point 4 with the surveying direction D1 of the surveying section 206 directed in the direction of the design coordinates P1 of the surveying point 4 to be surveyed. The shape of the road surface 41 in the design data 351 and the actual shape of the road surface 42 may differ due to changes over time or construction errors. For example, in FIG. 6, the design coordinates P1 of the route design data 351 and the coordinates of the perpendicular point coordinates P3 illustrated as the current coordinates differ by a height dz. The distance measuring light emitted from the surveying device 2 toward the designed coordinate P1 located on the designed road surface 41 is irradiated onto the measured coordinate P2 located on the current road surface 42, which is separated by a distance difference A2. Therefore, when the surveying device 2 measures the survey point 4 at the design coordinates P1, it obtains the actual measurement coordinates P2, which is different from the design coordinates P1, as the survey result for the survey point 4.

In step S07, the control unit 31 determines whether the difference between the designed coordinates P1 of the surveyed measurement point 4 and the actual measured coordinates P2 satisfies a predetermined threshold. If the difference between the designed coordinates P1 and the actual measured coordinates P2 satisfies a predetermined threshold (S07; Yes), the terminal 3 proceeds to step S06; otherwise (S07; No), the terminal 3 proceeds to step S08.

Specifically, the surveying device 2 transmits survey data including the survey point 4 and the actually measured coordinates P2 that are the survey results of the survey point 4 to the terminal 3. The control unit 31 of the terminal 3 receives the survey data transmitted from the surveying device 2 and stores it in the storage unit 35 as survey data 352. Thereafter, the control unit 31 determines the difference in the horizontal direction between the measured coordinates P2 and the designed coordinates P1. Note that the horizontal direction is a direction parallel to the transverse direction D4 (horizontal direction in FIG. 5) and the longitudinal direction D3 (vertical direction in FIG. 5). The control unit 31 first determines the difference A1 in the horizontal direction between the actual measured coordinates P2 obtained by distance measurement by the distance measuring unit 206a and the designed coordinates P1. The control unit 31 also obtains an angle dθ (same as the angle when measuring the actual coordinate P2 from the instrument point of the surveying device 2), which is the angle of depression when the designed coordinate P1 is collimated by the angle measuring unit 206b. There is. Therefore, the control unit 31 can obtain the horizontal difference A1 between the measured coordinates P2 and the designed coordinates P1 by A1=A2·cos(dθ).

In addition, in FIG. 5, the horizontal angle between the field reference point direction D2 and the cross section 51 is XA, and the horizontal direction between the reference point direction D2 and the line segment (difference A2) connecting the design coordinate P1 and the measured coordinate P2. HA is the angle of You can ask for it. Further, the control unit 31 can obtain the difference L2 between the design coordinate P1 and the actual measurement coordinate P2 in the transverse direction D4 (direction along the cross section 51) as L2=A1·cos(XA−HA). Furthermore, the control unit 31 calculates the height dz of the design coordinate P1 (in other words, the distance from the design coordinate P1 to the vertical point coordinate P3) with respect to the road surface 42 (a horizontal plane having the same height as the measured coordinate P2), as dz=A2・It can be determined by sin(dθ).

The control unit 31 determines whether one or both of the difference L1 and the difference L2 in the horizontal direction between the measured coordinates P2 and the designed coordinates P1 are larger than a predetermined threshold. For example, the control unit 31 determines that the difference is large when the difference L1 is 10 cm or more, or the difference L2 is 5 cm or more. If the difference in the horizontal direction between the measured coordinates and the designed coordinates is large, the control unit 31 returns to the process of step S06 and re-surveys the survey point 4.

When the process returns from step S07 to step S06 and a resurvey is performed, the control unit 31 offsets the difference in the height direction D5 (the above-mentioned height dz) between the design coordinate P1 and the actual measurement coordinate P2 from the design coordinate P1. The perpendicular point coordinate P3 is re-surveyed. That is, the surveying device 2 performs a resurvey by collimating a direction rotated in the elevation direction by an angle dφ from the collimation direction when surveying the previously measured coordinate P2. Since the road surface 42 is a virtual horizontal plane determined based on the height of the measured coordinate P2, the perpendicular point coordinate P3 may not be located on the actual road surface, but it can be adjusted to the design coordinate P1 by resurveying. On the other hand, coordinates with a smaller horizontal difference (difference L1 or difference L2) can be surveyed.

In step S07 after resurveying the same survey point 4, the control unit 31 determines whether the difference between the designed coordinates P1 and the actual measured coordinates P2 of the surveyed survey point 4 satisfies a predetermined threshold. If the difference between the designed coordinates P1 and the measured coordinates P2 satisfies a predetermined threshold, the terminal 3 proceeds to step S06; otherwise, the terminal 3 proceeds to step S08. In this way, by repeating the resurveying process in steps S06 and S07, the control unit 31 can reduce the horizontal differences L1 and L2 between the design coordinates P1 and the actual measured coordinates P2 of the measurement point 4. Therefore, the difference in the height direction D5 between the design coordinates P1 and the current coordinates of the measurement point 4 can be determined more accurately.

The control unit 31 receives the setting of the limit number of resurveys in advance from the retry count setting unit 616 on the setting screen 61 in FIG. If it is determined that the difference between the measured coordinates P2 and the designed coordinates P1 is large, the processes from step S08 onwards may be performed. Therefore, as will be described later, if the surveying of all the survey points 4 on the cross section 51 has not been completed in step S09, even if there are survey points 4 for which the survey could not be completed, the survey The target measuring point 4 can be changed to another unsurveyed measuring point 4.

Note that the measurement point 4 where the survey cannot be completed may be, for example, a case where a vehicle is parked or stopped on the road surface.

When the surveying of the surveying points 4 by the surveying device 2 is completed (step S08), the control unit 31 determines in step S09 whether the surveying of all the surveying points 4 on the cross section 51 has been completed. If the surveying of all the measuring points 4 on the cross section 51 has been completed (step S09; Yes), the control unit 31 proceeds to the process of step S10, and if the surveying of all the measuring points 4 has not been completed ( Step S09; No) Return to step S06.

In the process of step S06 that transitions from step S09, the control unit 31 changes the measurement point 4 to be surveyed to an unmeasured measurement point 4. Specifically, the control unit 31 causes the surveying unit 206 to sequentially survey a plurality of measurement points 4 included in the selected cross section 51. The surveying is performed by automatically selecting the measurement points 4 of the cross section 51 in order from the left end point to the right end point on the map screen 62, for example.

In step S<b>10 , the display unit 34 of the terminal 3 displays the measurement points 4 arranged in correspondence with the identification information (measurement point identification information) of the measurement points 4 and the evaluation information as the survey results of the measurement points included in the cross section 51 . are displayed in order, and the survey value corresponding to measurement point 4 is displayed. For example, the editing screen 64 shown in FIG. 3 is displayed on the display unit 34. The user can easily check the survey results by referring to the editing screen 64.

When the user determines that there is an abnormality in the survey results or that there is an omission in the survey, the user uses the operation unit 33 to send an instruction to resurvey to the surveying device 2 via the terminal 3. In step S11, based on the instruction from the user, the control unit 31 returns to the process of step S06 when there is an abnormality in the survey result or there is a survey omission, and returns to the process in step S06 when there is no abnormality in the survey result and there is no survey omission. The process advances to S12. Note that when performing a resurvey, the survey point 4 to be resurveyed may be selected via the operation unit 33. Further, for example, even if there is an omission in the survey results, if the user determines that there is no problem with the survey results, the process may proceed to step S12. Furthermore, in step S11, the control unit 31 may automatically determine whether there is an abnormality or the like in the survey results. For example, if there is a survey point 4 that has not been surveyed, the control unit 31 determines that the final actual measured coordinates P2 of the survey point 4 are from the center line CL (cross center) in the traveling direction of the route (longitudinal direction D3). If there is a significant difference in height between the left and right measuring points 4 (observation points), the cross-sectional If the actually measured coordinates P2 of adjacent survey points 4 on the surface 51 are significantly apart from each other with respect to the survey interval (observation pitch) (for example, if they are significantly far apart in the left-right direction in FIG. 5), If there are survey points 4 that do not satisfy each threshold, it can be determined that there is an abnormality in the survey results in one or more of the following cases.

In step S12, the control unit 31 ends the observation of the cross section 51. Note that the control unit 31 may arbitrarily display the acquired survey data 352 on the display unit 34 or output it to an external device communicatively connected via a network. Further, the control unit 31 may store the survey data 352 in a portable storage medium connected to the terminal 3 by wire.

(Design coordinate display)
Next, another display example of the editing screen 64 will be explained. FIG. 7 is a diagram showing an editing screen 64A displayed on the display unit 34 of the terminal 3. The editing screen 64A has a survey point layout map 641A. The survey point layout map 641A has a function of displaying the route data 5 similarly to the survey point layout map 641 in FIG. The survey point layout diagram 641 in FIG. 3 shows a plan view of the route data 5, whereas the survey point layout diagram 641A shows a cross-sectional view of a specific cross section 51 of the route data 5. The route data 5 is design data imported from a file such as XML. The display unit 34 displays the first figure 4a representing the design data (route data 5) of the measuring point 4 included in the cross section on the measuring point layout map 641A. In the example of FIG. 7, the first figure 4a is a rhombus figure. The number and position of the first figures 4a are determined according to the route data 5 selected by the route selection section 611, the cross section 51 selected by the cross section selection section 613, and the pitch selected by the pitch setting section 615. be done. Further, the position of the first figure 4a is displayed in accordance with the design coordinates (P1). Note that since the survey point layout diagram 641A is a cross-sectional view, the position according to the design coordinates (P1) is reflected in the cross-sectional direction D4 and the height direction D5.

By displaying the measurement point 4, which is the design data, on the display unit 34 of the terminal 3, the user can check the cross-sectional view, which is the survey target, before starting the work. Therefore, before automatic observation, the user should check the target shape of the survey target from route data 5, and if the survey target is road 40 (see Figure 8), make advance preparations such as improving the road condition, or , it is possible to easily estimate the surveying work image.

The display unit 34 also displays a second graphic 4b that corresponds to the first graphic 4a and represents the survey results of the survey points 4 included in the cross section in the survey point layout map 641A. The second figures 4b are displayed sequentially, for example, starting from the measurement point 4 where the surveying was completed in step S08. In the example of FIG. 7, the second figure 4b is a rhombus figure. Note that the first figure 4a and the second figure 4b may be a circle, a polygon such as a triangle or a quadrangle, or other figures. The first figure 4a and the second figure 4b may be the same figure or different figures. When the first figure 4a and the second figure 4b are the same figure, they may be displayed in different colors. For example, the first figure 4a is displayed as a red diamond, and the second figure 4b is displayed as a green diamond.

Moreover, in the example of FIG. 7, since the measured coordinate P2 of the measuring point 4 is lower in the height direction D5 than the designed coordinate P1, the display unit 34 displays the second figure 4b lower than the first figure 4a.

The measurement point information display section 643A displays specific information regarding the measurement point 4. The display unit 34 displays the difference between the design coordinates P1 and the measured coordinates P2 corresponding to the first figure 4a and the second figure 4b in the measurement point information display unit 643A in the transverse direction D4, the longitudinal direction D3, and the height direction D5. Display for each. Further, the difference is displayed corresponding to each identification information of the measuring point 4 (eg, measuring point name "701", "702", "703"). For example, the difference (front-back difference) in the longitudinal direction D3 between the design coordinates and the measured coordinates of the measuring point 4 with the measuring point name "701" is 1.695 m on the positive side (front side) of the longitudinal direction D3, and the difference in the transverse direction D4 (Left-right difference) is 4.695 m to the left in the transverse direction D4, and the difference (vertical difference) in the height direction D5 is 7.412 m to the lower side of the height direction D5. Among the stations 4 shown in the station layout diagram 641A, other stations 4 that cannot be displayed at once on the station information display section 643A (in FIG. 7, station names "704" and "705") are The point information display section 643A can be displayed by receiving an instruction from the operation section 33 to scroll the display range of the point information display section 643A.

By checking the position of the design coordinates displayed on the display unit 34 using the first graphic 4a, the user can check the position of the measurement point 4 and the shape of the road surface 41 of the design data before observation. Further, during observation, the user can check the difference from the design coordinates using the second graphic 4b or the measurement point information display section 643A.

Note that the display unit 34 may display the actually measured coordinates of the surveyed measurement point 4 corresponding to the second figure 4b on the measurement point information display unit 643A. The measured coordinates P2 to be displayed can include information on part or all of the longitudinal direction D3, the transverse direction D4, and the height direction D5. Therefore, the display unit 34 displays the actual measured coordinates of the surveyed measurement point 4 corresponding to the second figure 4b, and/or the difference between the designed coordinates and the actual measured coordinates corresponding to the first figure 4a and the second figure 4b. , the transverse direction D4, the longitudinal direction D3, and the height direction D5.

In this way, the user can display the first figure 4a representing the design coordinates of the measuring point 4 and the second figure 4b representing the actual measured coordinates from the route data 5 (design data) imported from a file such as XML. , the current work status and the design value of the measurement target can be compared to determine the validity of the work. This prevents the user from returning to the office and later realizing that the measured coordinates are abnormal, and allows the user to know in advance at the site, thereby avoiding significant delays in the work process such as redoing the surveying work. can be reduced or suppressed.

Note that the determination as to whether the difference between the designed coordinates and the measured coordinates is appropriate (or abnormal) may be made by the user or automatically by the control unit 31 or the like. For example, the control unit 31 can determine in step S11 whether the difference between the designed coordinates and the measured coordinates is appropriate (or abnormal).

(Continuous automatic observation)
Next, each work or processing step of the continuous automatic observation function using the surveying system 1 will be explained with reference to the control flowchart of FIG. 9. In the description of FIG. 9, the same processes as those in FIG. 4 are given the same reference numerals and the description will be omitted or simplified.

When continuous observation is selected by the continuous observation switching unit 614, the control unit 31 performs continuous automatic observation on the plurality of cross sections 51 selected by the cross section selection unit 613. FIG. 8 shows an example of observing road surfaces 41 and 42 of a road 40 as an example of continuous automatic observation. The route data 5 includes a plurality of cross sections 51 arranged at predetermined intervals in the longitudinal direction D3 of the road 40. Each cross section 51 includes a plurality of measurement points 4. Furthermore, the measurement point 4 includes a design coordinate P1 and an actual measurement coordinate P2. In the example of FIG. 8, the road surface 41 of the route data 5 is designed so that the center of the road 40 is higher, and the road surface 42 of the actual current condition data is lower in the height direction D5 than the design coordinate P1 and approximately A flat state is illustrated. In continuous automatic observation, the surveying device 2 observes each measurement point 4 included in a plurality of cross sections 51 by one observation process from one observation point.

FIG. 9 is a flowchart of the processing of the control unit 31 that executes continuous automatic observation. If the control unit 31 completes the surveying of all the measuring points 4 on the cross section 51 in step S09 (step S09; Yes), the control unit 31 proceeds to the process of step S13 and completes the surveying of all the measuring points 4 on the cross section 51. If not completed (step S09; No), the process returns to step S06.

In step S13, the control unit 31 determines whether the surveying of all survey points 4 on the cross section 51 has been completed. When the surveying of the measuring points 4 on all the cross sections 51 is completed (step S13; Yes), the control unit 31 proceeds to the process of step S10, and the surveying of the measuring points 4 on all the cross sections 51 is completed. If not (step S13; No), the process returns to step S06.

In the process of step S06 transitioned from step S13, the control unit 31 changes the measurement point 4 to be surveyed to the measurement point 4 included in the unmeasured cross section 51. Specifically, the control unit 31 causes the surveying unit 206 to sequentially survey a plurality of measurement points 4 included in a plurality of selected cross sections 51. The control unit 31 selects the cross sections 51 in order from the bottom to the top on the map screen 62, for example, and automatically surveys the measurement points 4 included in each cross section 51.

According to the continuous automatic observation function, since the surveying device 2 observes the set range all at once (continuously), the user can significantly shorten the work. Further, the display unit 34 may display the cross section of the design coordinates and the measured survey points 4 on the survey point layout diagram 641A shown in FIG. 7 during the observation. As a result, when an abnormality occurs such as a large difference between the measured coordinates and the design coordinates (one or more differences in the transverse direction D4, longitudinal direction D3, and height direction D5) during automatic observation, the user can You can immediately redo your survey work on the spot. This makes it possible to reduce or suppress significant delays in the work process, such as redoing the survey while performing continuous observation, and to improve the efficiency of the survey work.

As described above, in this embodiment, the surveying section 206 that surveys the position of the surveying point 4 and the surveying section 206 pointing the surveying direction D1 of the surveying section 206 in the direction of the design coordinates P1 of the surveying point 4 If the difference between the measured coordinates P2 and the design coordinates P1 is large, the position is reset from the design coordinates P1 by offsetting the difference (dz) in the height direction between the design coordinates P1 and the actual measurement coordinates P2. The surveying system 1 including the control unit 31 for surveying has been described.

In addition, the surveying unit 206 of the surveying device 2 surveys the position of the surveying point 4, and the surveying unit 206 surveys the surveying point 4 by directing the surveying direction D1 of the surveying unit 206 in the direction of the design coordinates P1 of the surveying point 4. If the difference between the measured coordinates P2 and the design coordinates P1 is large, re-survey the position by offsetting the difference (dz) in the height direction between the design coordinates P1 and the actual measurement coordinates P2 from the design coordinates P1. A non-transitory surveying program for causing a computer to execute the steps and a surveying method including each of the steps have been described.

In the surveying method of this embodiment, there is no need to arrange a target member such as a so-called prism at the survey point 4, so when surveying a route, it can be carried out quickly without lane regulation. Furthermore, the surveying of the measuring points 4 on the cross-sectional plane 51 and the surveying of each measuring point 4 that straddles the cross-sectional plane 51 can be performed automatically. Therefore, current situation observation can be carried out efficiently.

This concludes the description of the embodiment of the present disclosure, but aspects of the present disclosure are not limited to this embodiment.

For example, although the terminal 3 has been described as an example in which the operation section 33 and the display section 34 are provided in an integrated device, the present invention is not limited to this, and the terminal 3 may be configured as separate bodies with a plurality of devices. That is, a configuration including the functions of the operation section 33 and the display section 34 can be used as a terminal.

Furthermore, in the surveying system 1 of the present embodiment, an example in which a total station is used as the surveying device 2 has been described, but a GNSS (Global Navigation Satellite System) receiving device may be used as the surveying device 2. In this case, the operator can move the GNSS receiver to check the staking point. Further, a laser marking device may be applied as the surveying device 2.

Moreover, the processing in each step explained in FIG. 4 may be performed by the control unit 31 in a plurality of steps at once.

Furthermore, in this embodiment, a configuration has been described in which the distance is measured by irradiating light onto the road surface and detecting the returned light reflected as scattered light. A reflective member (for example, a reflective sheet, a target plate, etc.) capable of reflecting the reflected light with an intensity that allows the surveying device 2 to detect the reflected light may be installed on the road surface. When the reflecting member laid on the road surface does not need to be supported by workers or the like, it allows vehicles to pass through and allows surveying to be carried out while eliminating the need for lane regulation.

Furthermore, in this embodiment, in step S04, the operation unit 33 (receiving unit) receives the setting of the survey interval of the survey points 4 in the selected cross section 51 from the pitch setting unit 615. It may also have a function of accepting selection of the number of target cross sections 51.

Further, the control unit 207 of the surveying device 2 may have the functions of the control unit 31, such as instructing the surveying device 2 to conduct a survey and calculating the difference between the designed coordinates P1 and the actual measured coordinates P2. For example, the surveying system 1 may include an integrated device having the functions of the surveying device 2 and the terminal 3.

Furthermore, the surveying device 2 or the terminal 3 may include a camera section having a photographing function. The surveying device 2 or the terminal 3 may use a camera unit to photograph an abnormal point on the site (for example, a survey point 4 where a measured coordinate P2 that is significantly different from the designed coordinate P1 is observed).

Further, the editing screen 64 may display the measurement point 4 with one or both of the design coordinates P1 and the actual measurement coordinates P2. Further, in the editing screen 64, for the measurement point 4, only one of the design coordinates P1 and the actual measurement coordinates P2 may be displayed in a switchable manner.

Further, if it is determined in step S07 that the difference between the design coordinate P1 and the actual measurement coordinate P2 is greater than or equal to a predetermined threshold in a state where the limit number of times has been reached, the terminal 3 or the surveying device 2 displays any The error may be output by the output means.

Further, if it is determined in step S07 that the difference between the design coordinate P1 and the actual measurement coordinate P2 is greater than or equal to a predetermined threshold in a state where the limit number of times has been reached, the terminal 3 or the surveying device 2 displays any The error may be output by the output means.

Further, the setting screen 61 may include a cross section number setting section that automatically sets the number of cross sections 51 that can be surveyed in one survey execution. The cross section number setting section may restrict input of the maximum value of the settable number of cross sections depending on the distance that can be surveyed by the surveying device 2 (for example, depending on the grade).

1 Surveying system 2 Surveying device 3 Terminal 4 Survey point 5 Route data 21 Main body 22 Telescope 23 Legs 31 Control section 32 Communication section 33 Operation section 34 Display section 35 Storage section 40 Road 41 Road surface 42 Road surface 51 Cross section 61 Setting screen 62 Map screen 63 Waiting screen 64 Edit screen 201 Communication section 202 Storage section 203 Display section 204 Operation section 205 Rotation drive section 206 Survey section 206a Distance measurement section 206b Angle measurement section 207 Control section 351 Design data 352 Survey data 353 Survey program 611 Route selection section 612 Standard section selection section 613 Cross section selection section 614 Continuous observation switching section 615 Pitch setting section 616 Retry count setting section 621 Station name display section 622 Cross section name display section 623 First distance display section 624 Second distance display section 625 Start button 626 Skip button 631 Icon 641, 641A Survey point layout map 642 Survey point information display section 643, 643A Survey point information display section A1 Difference A2 Difference CL Center line D1 Survey direction D2 Reference point direction D3 Longitudinal direction D4 Transverse direction D5 Height direction L1, L2 Difference LC Center line Lt Distance measurement light P1 Design coordinates P2 Actual coordinates P3 Perpendicular point coordinates dz Height dθ Angle dφ Angle

Claims (12)

a surveying department that surveys the position of the measuring point;
A survey point is surveyed by the surveying section with the surveying direction of the surveying section pointing in the direction of the design coordinates of the survey point, and if the difference between the surveyed actual coordinates and the design coordinates is large, from the design coordinates, a control unit that re-surveys the coordinates by offsetting the difference in the height direction between the coordinates and the actually measured coordinates;
A surveying system equipped with The surveying system according to claim 1, wherein the control unit performs the resurvey when a horizontal difference between the actually measured coordinates and the designed coordinates is large. Equipped with a reception section that accepts selections of routes and cross sections to be surveyed,
The control unit causes the surveying unit to sequentially survey a plurality of measurement points included in the selected cross section.
The surveying system according to claim 1. The control unit receives the setting of the limit number of times of resurveying, and when the difference between the actual measured coordinates and the design coordinates is large in the resurveying that has reached the limit number of times, the control unit sets a survey point to be surveyed as yet. The surveying system according to claim 3, wherein the surveying system changes to another surveying point.
Surveying equipment. The surveying system according to claim 3, wherein the reception unit has a function of accepting selection of the number of cross sections to be surveyed. 4. The surveying system according to claim 3, wherein the receiving unit receives a selection of a surveying interval between measurement points to be surveyed in the selected cross section. comprising a display section having the function of the reception section,
The display section displays, in order, the survey points arranged in correspondence with the survey point identification information and evaluation information as the survey results of the survey points included in the cross section, and displays the survey values corresponding to the survey points. display,
The surveying system according to claim 3. The surveying system according to claim 1, further comprising a display section that displays a first figure representing design data of measurement points included in the cross section. 9. The surveying system according to claim 8, wherein the display unit displays a second figure corresponding to the first figure and representing the survey results of measurement points included in the cross section. The display unit displays the actually measured coordinates of the surveyed side points corresponding to the second figure, and/or the difference between the designed coordinates and the actually measured coordinates corresponding to the first figure and the second figure. 10. The surveying system according to claim 9, wherein the surveying system displays information in each of the transverse direction, longitudinal direction, and height direction. A process in which the surveying section of the surveying device surveys the position of the survey point;
A survey point is surveyed by the surveying section with the surveying direction of the surveying section pointing in the direction of the design coordinates of the survey point, and if the difference between the surveyed actual coordinates and the design coordinates is large, from the design coordinates, resurveying the coordinates by offsetting the difference in the height direction between the coordinates and the measured coordinates;
Surveying methods including. A process in which the surveying section of the surveying device surveys the position of the survey point;
A survey point is surveyed by the surveying section with the surveying direction of the surveying section pointing in the direction of the design coordinates of the survey point, and if the difference between the surveyed actual coordinates and the design coordinates is large, from the design coordinates, resurveying the coordinates by offsetting the difference in the height direction between the coordinates and the measured coordinates;
A surveying program that allows a computer to execute

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