Survey support program, survey support device, survey support method, and survey support system

Abstract

To enable an operator to visually recognize separation from a cross section, and thereby restrict an error of separation from the cross section in transverse observation.SOLUTION: A surveying support device 50 is configured to: read design information which contains center point data on a center point set on a center line of a track, and constitution point data on constitution points including the center point and set on a cross section intersecting with the center line; acquire positional information indicating a present position of a surveyed device 10 at a predetermined cycle; generate a plane view from the design information; display the plane view on a terminal screen part 51; display a position of the surveyed device by superposing it on the plane view; update the positional information every time it is acquired; record the acquired positional information, as an observed value of the constitution points at a specific cross section, in a terminal recorder 53; and display reference lines GL1 and GL2 indicating positions that are longitudinally separated in a track direction from the specific cross section by a preset limit distance, on the plane view.SELECTED DRAWING: Figure 5

Description

[Technical field]

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

[0002] In the construction of linear structures such as routes, a construction plan is drawn up and a construction plan is drawn up taking into account the volume of earth to be cut and filled. Route surveying is used in the investigation, planning, and detailed design of linear structure construction. Route surveying includes cross-sectional observations that measure the difference in elevation (vertical distance) between a point on a cross section perpendicular to the route and the center point on that cross section, and observe the shape of the cross section.

[0003] In recent years, route surveying has come to use a method in which light-wave devices such as total stations or GNSS surveying devices are used, with targets and GNSS receivers being used as the surveyed devices, and workers move from observation point to observation point while holding the surveyed devices to obtain data for the required observation points.

[0004] In addition, a survey support system has been proposed in which design information including data on configuration points that serve as observation points is read into a portable information processing device and plan views, cross-sectional views, and numerical information are displayed on a display unit (see, for example, Patent Document 1 and Non-Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6224659 specification [Non-patent literature]

[0006] [Non-Patent Document 1] Topcon Corporation Data Collector FC-500 Kantoku-san.V Instruction Manual Summary of the Invention [Problem to be solved by the invention]

[0007] In cross-sectional observation, the cross section (cross line) set in the design information is not actually indicated by a line or the like on-site, and workers cannot know whether the position they are trying to measure is on the set cross section. For this reason, in places with a steep gradient in the direction of the line, such as a steep cliff, deviation from the set cross section can result in a fatal difference in height.

[0008] Specifically, in the vicinity of cross section No. 0, which is set in a location with a gentle gradient in the line direction as shown in Figure 1, even if the cross section is some distance (say, distance d1) away from the cross section in the line direction, the vertical distance d2 from the measurement center point CP0 is not significantly different from the vertical distance d3 that is actually intended to be measured. However, in a location such as cross section No. 2 where the gradient in the line direction is steep, even if the distance from cross section No. 2 is the same distance d1, a fatal error will occur between the vertical distance d4 from the measurement center point CP2 and the vertical distance d5 that is actually intended to be measured.

[0009] The present invention has been made in consideration of the above circumstances, and aims to prevent deviation from a cross section in cross-sectional observation by allowing an operator to visually recognize deviation from a cross section. [Means for solving the problem]

[0010] In order to achieve the above object, a survey support program according to one aspect of the present invention is a program for providing a computer with center point data of a center point set on a center line of a route, and a map including the center point and perpendicular to the center line. Decision A computer reads design information including configuration point data of configuration points set on a surface, acquires position information indicating the current position of the surveyed device at a predetermined period, generates a plan view from the design information, displays the plan view on a screen of the computer, displays the current position superimposed on the plan view, updates the display of the current position every time the position information is acquired, and updates the acquired position information. Observation dataa survey support program for recording in a storage unit of the computer, the survey support program causing the computer to display on the screen the following on the plan view: Specified as the cross section of the observation target A guide line indicating a position a preset limit distance ahead or behind the designated cross section in the line direction is displayed.

[0011] In the above aspect, it is also preferable to have the computer calculate the distance between the current position of the surveyed device and the specified cross section based on the position information and the design information, compare the distance with the limit distance, and, if the distance exceeds the limit distance, issue a warning that the surveyed device is away from the specified cross section by more than the limit distance.

[0012] In the above aspect, the computer is caused to calculate a distance between the current position of the surveyed device and the specified cross section based on the position information and the design information, compare the distance with the limit distance, and if the distance exceeds the limit distance, store the position information in the Observation data It is also preferable to prevent the information from being stored in the storage unit.

[0013] In the above aspect, it is also preferable to have the computer calculate the distance between the current position of the surveyed device and the specified cross section based on the position information and the design information, calculate the direction in which the distance between the current position and the specified cross section approaches zero, and guide the operator in the direction in which the distance approaches zero.

[0014] In the above aspect, the computer The above It is also preferable to calculate the longitudinal gradient based on design information, compare the calculated longitudinal gradient with a preset longitudinal gradient threshold, and issue a warning if the longitudinal gradient is greater than the threshold.

[0015] A surveying support device according to another embodiment of the present invention comprises a terminal screen unit, a terminal control unit, and a terminal storage unit, the terminal control unit comprising a design information reading unit that reads in design information including center point data of a center point set on a center line of a route and configuration point data of configuration points set on a cross section including the center point and perpendicular to the center line, a position information acquisition unit that acquires position information indicating the current position of a device to be surveyed at a predetermined period, a view display unit that generates a plan view from the design information and displays the plan view on the terminal screen unit, and a display unit that displays the plan view of the device to be surveyed by overlaying it on the plan view. the current Display the location, The display of the current location, A current position display unit that updates the position information every time the position information is acquired, and the acquired position information Observation data a record execution unit for recording in the terminal storage unit as Specified as the cross section of the observation target The vehicle is provided with a guide line display unit that displays guide lines indicating positions located a preset limited distance ahead and behind the designated cross section in the route direction.

[0016] A survey support system according to another aspect of the present invention includes a position acquisition device that acquires the current position of the surveyed device, and the survey support device according to the above aspect, Survey support equipment are configured to be able to communicate with each other and acquire the position information of the surveyed device.

[0017] Furthermore, a survey support according to another aspect of the present invention method a computer reads design information including center point data of a center point set on a center line of a route and configuration point data of configuration points set on a cross section including the center point and perpendicular to the center line, acquires position information indicating the current position of a device to be surveyed at a predetermined period, generates a plan view from the design information, displays the plan view on a display unit of the computer, and displays the current position of the device to be surveyed on the plan view. the current Show location, The display of the current location, The location information is updated every time it is acquired, and the acquired location information is Observation data and recording the above on the plan view in the storage unit of the computer. Specified as the cross section of the observation target A guide line is displayed indicating a position a preset limit distance away from the specified cross section in both directions along the route. Effect of the Invention

[0018] According to the surveying support program, surveying support device, surveying support method, and surveying support system relating to the above-mentioned aspects, it is possible to allow the operator to visually recognize the deviation from the cross section, thereby preventing deviation errors from the cross section in cross-sectional observations. [Brief description of the drawings]

[0019] [Figure 1] FIG. 1 is a diagram illustrating errors caused by distance from a cross section in cross-sectional observation. [Diagram 2] 3A and 3B are diagrams for explaining design information used in the survey support system according to the embodiment; [Diagram 3] FIG. 2 is a schematic diagram showing the appearance of the survey support system. [Figure 4] FIG. 2 is a configuration block diagram of the survey support system. [Diagram 5] FIG. 2 is a diagram showing an example of an observation screen displayed on a terminal screen unit of the survey support device of the same embodiment. [Figure 6] 4 is a flowchart showing an example of a survey support method using the survey support system. [Figure 7] 11A to 11C are diagrams showing examples of screens displayed on a terminal screen section of the survey support device of the same configuration. [Figure 8] FIG. 11 is a configuration block diagram of a survey support system according to one modified example of the present embodiment. [Figure 9] 4 is a flowchart showing an example of a survey support method using the survey support system. [Figure 10] 13 is a diagram showing an example of a warning display displayed on a terminal screen of the survey support device in the survey support system. FIG. [Figure 11] FIG. 11 is a configuration block diagram of a survey support system according to another modified example of the present embodiment. [Figure 12] FIG. 11 is a configuration block diagram of a survey support system according to still another modified example of the present embodiment. [Figure 13]13 is a diagram showing an example of a guidance display displayed on a terminal screen of the survey support device in the survey support system. FIG. [Figure 14] FIG. 11 is a configuration block diagram of a survey support system according to still another modified example of the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited thereto. In addition, in each embodiment, members having the same functions and configurations are given the same reference numerals, and duplicated descriptions are omitted as appropriate.

[0021] (Embodiment)

[0022] (Design information) Prior to describing the configuration of a survey support system (hereinafter simply referred to as the "system") 100 according to an embodiment of the present invention, design information used in this system will be described with reference to FIG. 2. The design information is information including, for example, a design drawing of a route required for construction of a route, etc., created in an absolute coordinate system. The design information includes center line data indicating the center line CL of the route. It also includes center point data indicating center points CP0, CP1, CP2, ... set at predetermined intervals (for example, 20 m intervals) on the center line CL. The center points are points at which center piles are to be installed on site.

[0023] The design information includes center points CP0, CP1, CP2, etc., and sets cross sections (hereinafter simply referred to as "sections") No. 0, No. 1, No. 2, etc. that are perpendicular to the center line. Configuration points are set on the sections, for example, on section No. 0, such as configuration points P01 to P04. Configuration points are points where piles are placed as landmarks on site, such as points that define the width of the road. For example, P01, P11, P21, etc. are set at positions that are equidistant from the center point on each section along the route direction.

[0024] (Overall system configuration) As shown in FIGS. 3 and 4, the system 100 includes a position acquisition device 30 and a survey support device 50.

[0025] (Configuration of position acquisition device 30) The position acquisition device 30 includes a surveying device 10 and a surveyed device 40. The surveying device 10 is a total station (electronic distance and angle measuring instrument). The surveying device 10 is installed at a known point via a tripod 2. Alternatively, after the surveying device 10 is installed, the coordinates may be made known, for example, by resection. The known coordinate data of the surveying device 10 is input in advance to the survey support device 50 and stored in the terminal memory unit 53.

[0026] The surveying instrument 10 has, in appearance, a base unit 5 provided on a leveling unit 3, a support unit 7 which rotates horizontally around an axis HH on the base unit 5, and a telescope 9 which rotates vertically around an axis VV on the support unit 7. The support unit 7 houses a control and calculation unit 23 which will be described later.

[0027] The surveying instrument 10 has an automatic collimation function and an automatic tracking function, and a distance measuring optical system and a tracking optical system (not shown) are housed in the telescope 9. The configurations of the distance measuring optical system and the tracking optical system are conventionally known. In the surveying instrument 10, the horizontal rotation of the support unit 7 and the vertical rotation of the telescope 9 work together to irradiate the distance measuring light and the tracking light over the entire circumference.

[0028] As shown in Figure 2, the surveying instrument 10 includes a distance measuring unit 11, a tracking unit 12, a horizontal rotation drive unit 13, a vertical rotation drive unit 14, a horizontal angle detector 15, a vertical angle detector 16, a communication unit 17, a tilt sensor 18, a memory unit 19, an operation unit 21, a display unit 22, and a control and calculation unit 23.

[0029] The distance measuring unit 11 emits distance measuring light using the distance measuring optical system, receives reflected light from a target 41 provided on the surveyed device 40, and performs automatic collimation and distance measurement of the target 41.

[0030] The tracking unit 12 emits tracking light using the above-mentioned tracking optical system, captures the position of the target 41 from the light reflected from the target 41, and automatically tracks the target 41 when the target 41 moves.

[0031] The horizontal rotation drive unit 13 is a motor provided on the base unit 5. The horizontal rotation drive unit 13 rotates the base unit 7 around an axis HH relative to the base unit 5. The vertical rotation drive unit 14 is a motor provided on the base unit 7. The vertical rotation drive unit 14 rotates the telescope 9 around an axis VV.

[0032] The horizontal angle detector 15 and the vertical angle detector 16 are rotary encoders. The horizontal angle detector 15 detects the angle around the axis HH of the support unit 7, and the vertical angle detector 16 detects the angle around the axis VV of the telescope 9. As a result, the horizontal angle detector 15 and the vertical angle detector 16 constitute an angle measuring unit that measures the angle of the target 41.

[0033] The communication unit 17 is a communication control device that connects the surveying device 10 and the survey support device 50 by wire or wirelessly. As a communication standard that realizes the communication unit 17, Wi-Fi (registered trademark), which is one of the wireless LAN standards, or 4G (fourth generation mobile communication system) may be adopted. Alternatively, a short-range wireless communication standard such as Bluetooth (registered trademark) or infrared communication may be adopted.

[0034] Tilt sensor 18 is a bubble type, capacitance type, or other tilt sensor, and is fixed to the upper surface of a rotation shaft (not shown) of base unit 5. The value of tilt sensor 18 is read when the rotation shaft of horizontal rotation drive unit 13 rotates once in both directions, and the horizontality of leveling unit 3 is adjusted based on the amount of deviation during each rotation.

[0035] The storage unit 19 is a storage medium that stores, preserves, and transmits information in a format that can be processed by the control and calculation unit 23, and may be, for example, a HDD (Hard Disc Drive), a flash memory, etc. The storage unit 19 stores measured survey data and programs for various processes in the control and calculation unit.

[0036] The operation unit 21 is a plurality of buttons provided on the outer surface of the support unit 7. Various information related to the operation of the surveying instrument 10 can be input via the operation unit 21.

[0037] The display unit 22 is a liquid crystal display provided on the outer surface of the support unit 7, and displays various information related to the survey.

[0038] The control and calculation unit 23 is a microcomputer in which a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), etc. are implemented in an integrated circuit. The control and calculation unit 23 is connected to each part of the surveying instrument 10.

[0039] The control and calculation unit 23 reads out programs for executing various functions of the surveying instrument 10 from the storage unit 19 or RAM, controls each part of the surveying instrument 10, and executes various functions such as automatic tracking, distance measurement, angle measurement, etc. It also performs calculation processing on data obtained by distance measurement and angle measurement to obtain position information (position coordinates) of the target 41.

[0040] In addition, the control and calculation unit 23 communicates with the survey support device 50 via the communication unit 17 , executes measurements according to commands from the survey support device 50 , and transmits survey data of the surveyed device 40 to the survey support device 50 .

[0041] The surveyed device 40 includes a target 41 and a pole-shaped support member 42 that supports the target 41 .

[0042] The target 41 is a so-called omnidirectional prism that is configured by combining a plurality of triangular pyramid prisms in a radial manner, but is not limited to this. The target 41 retroreflects incident light in a direction opposite to the incident direction.

[0043] The length of the support member 42 from its tip to the center O of the target 41 is His known. The support member 42 is equipped with a spirit level (not shown) so that it can be installed vertically. The target 41 is installed vertically at the observation point P via the support member 42, and the three-dimensional coordinates of the center O can be obtained from distance and angle measurement data obtained by measuring the distance and angle with the surveying instrument 10 installed at a known point, by subtracting the length H of the support member 42 from the three-dimensional coordinates of the center O, which can be obtained as the position information of the surveyed instrument 40.

[0044] A GNSS surveying device can be used as another embodiment of the position acquisition device 30. In this case, a GNSS receiving device capable of communicating with a survey support device 50 is used as the surveyed device 40 to survey the current position of the surveyed device 40.

[0045] (Configuration of survey support device) The survey support device 50 is a portable information processing device capable of communicating with the position acquisition device 30. The survey support device 50 is realized by a portable computer terminal such as a mobile phone, a smartphone, a tablet, a PDA, or a data collector.

[0046] The survey support device 50 comprises a terminal screen unit 51 , a terminal operation unit 52 , a terminal storage unit 53 , a terminal communication unit 54 , and a terminal control unit 55 .

[0047] The terminal screen unit 51 is, for example, a touch panel type liquid crystal display that is integral with the terminal operation unit 52. The terminal screen unit 51 displays images according to the processing contents, such as an observation screen 60, a cross section designation screen 90, and a distance limit setting screen 80.

[0048] The terminal storage unit 53 stores various programs and various data in a readable and writable storage medium. The terminal storage unit 53 is, for example, a HDD. The terminal storage unit 53 may also be, for example, an optical disk drive such as a CD (Compact Disc) drive. The terminal storage unit 53 stores a communication program, an image display program for displaying work contents, communication contents, etc. on the terminal screen unit 51, various programs for performing crossing observation, etc.

[0049] The terminal storage unit 53 also stores initial setting information such as the coordinates of the surveying instrument 10 and the height H of the target 41, and design information. It also stores the survey data of the target 41 received from the surveying instrument 10 and the measurement value data in the cross-sectional observation.

[0050] The terminal communication unit 54 is a communication control device that enables communication with the surveying instrument 10 via the communication unit 17 of the surveying instrument 10 , and has the same communication standard as the communication unit 17 .

[0051] The terminal control unit 55 is a control unit including at least a CPU and memory (ROM, RAM), etc. The terminal control unit 55 controls the survey support device 50 and the survey device 10 based on input signals from the terminal communication unit 54, the terminal operation unit 52, etc. The terminal control unit 55 ,end The program stored in the terminal storage unit 53 is called and executed.

[0052] The terminal control unit 55 has, as functional units, a design information reading unit 551, a cross-section designation unit 552, a limit distance setting unit 553, a view display unit 554, a guide line display unit 555, a position information acquisition unit 556, a current position display unit 557, a survey information display unit 558, and a record execution unit 559.

[0053] The design information reading unit 551 reads the design information stored in the terminal storage unit 53. Alternatively, the design information stored in an external storage device may be received via the terminal communication unit 54 and read.

[0054] The cross section designation unit 552 designates a cross section of the observation target from among the cross sections set in the design information according to an input by the operator. The cross section of the observation target is a cross section including a center point for which vertical and horizontal distances are to be calculated, and is hereinafter referred to as a "designated cross section."

[0055] The limit distance setting unit 553 sets a limit distance LD in front of or behind the designated cross section in accordance with an input by the operator.

[0056] The view display unit 554 generates a plan view 61 in which the center line CL of the route is projected onto a horizontal plane from the design information, and displays it on the observation screen 60 (FIG. 5). The view display unit 554 also generates a cross-sectional view 62 showing the center line CL at the specified cross section from the cross section set in the design information, and displays it on the observation screen 60 of the terminal screen unit 51 (FIG. 5).

[0057] The guide line display unit 555 generates guide lines GL1 and GL2 on the plan view, spaced from the specified cross section in the forward / backward direction of the route by the limit distance LD set by the limit distance setting unit 553, and displays them superimposed on the plan view 61.

[0058] The position information acquisition unit 556 receives measurement data of the target 41 measured by the surveying device 10 at a predetermined period via the terminal communication unit 54 for each measurement. The position information acquisition unit 556 acquires the position coordinates of the surveyed device 40 in the absolute coordinate system as position information of the surveyed device 40 from the coordinates of the surveying device 10 and the height H of the target stored in the terminal storage unit 53.

[0059] The current position display unit 557 displays a marking M1 indicating the current position of the surveyed device 40 on the plan view based on the position information of the surveyed device 40 acquired by the position information acquisition unit 556, and updates the display every time position information is acquired. Also, it displays a marking M2 on the cross-sectional view, and updates the display every time position information is acquired.

[0060] The survey information display unit 558 calculates the distance of the surveyed device 40 from the specified cross section, the horizontal distance from the center point on the specified cross section to the current position of the surveyed device 40, and the vertical distance based on the position information, and displays them as survey information on the observation screen 60 (FIG. 5). The survey information may include various information related to cross-sectional observation, such as the number of the specified cross section (center point). The survey information display unit 558 also updates the display of the survey information every time it acquires position information.

[0061] The record execution unit 559 stores the survey information at the current position of the surveyed device 40 as observation data in the terminal storage unit 53 in accordance with instructions from the operator.

[0062] The functions of the functional units may be realized by a circuit or by executing a program. In addition, when the functions are realized by a program, the program may be stored in a computer-readable storage medium such as a magnetic disk, a flexible disk, an optical disk, a compact disk, a Blu-ray (registered trademark) disk, or a DVD.

[0063] (Observation screen) Next, a description will be given again of the observation screen 60. As shown in Fig. 5, on the observation screen 60, a plan view 61 and a cross-sectional view 62 generated by the view display unit 554 are displayed side by side.

[0064] Also, a marking M1 indicating the position of the surveyed device 40 is displayed on the plan view 61. A marking M2 indicating the position of the surveyed device 40 is displayed on the cross-sectional view 62.

[0065] As shown enlarged on the right side of FIG. 5, on the plan view 61, guide lines GL1 and GL2 are displayed which indicate a position spaced a limited distance LD from the designated cross section in the longitudinal direction of the route. Furthermore, on the observation screen 60, survey information displays 64a to 64e are displayed by the survey information display unit 558. The survey information displays 64a to 64e indicate, for example, a specified cross section (center stake) number, the horizontal distance from the specified cross section in the front-to-back direction of the route of the surveyed device 40, the horizontal distance from the specified center point in the left-to-right direction perpendicular to the front-to-back direction of the route of the surveyed device 40, and the vertical distance from the specified center stake to the surveyed device 40.

[0066] Also, on the observation screen 60, a direction indicator 65 indicating north, south, east and west of the plan view 61 and a scale indicator 66 indicating the scale may be displayed. 80 In addition, a section designation screen for selecting a section to be designated as an initial setting may be displayed. 90 A screen transition button 68 for transitioning to the next screen is displayed.

[0067] Also displayed on the observation screen 60 are an observation start button 69 for commanding the surveying instrument 10 to start and stop tracking and observing the surveyed instrument 40, and a record button 71 for recording observation data.

[0068] In addition, the plan view 61 and the cross-sectional view 62 can be enlarged or reduced as desired. The position of the cross-sectional view 62 relative to the plan view 61 displayed simultaneously on the terminal screen section 51 can be changed in response to an instruction from the terminal operation section 52. Specifically, the position can be freely changed within the frame by operating the touch panel. Also, the display / non-display of the cross-sectional view 62 can be switched.

[0069] (Survey support method) FIG. 6 is a flow chart showing the process of one example of a survey support method for supporting cross-sectional observation using the survey support device 50 of this embodiment.

[0070] The surveying device 10 is installed at a known point and is ready to automatically track the target 41. While holding the surveyed device 40 vertically, the operator walks around the specified cross section of the survey site with the survey support device 50 and performs observations at points corresponding to the configuration points in sequence.

[0071] When the process starts, in step S01, the design information reading unit 551 reads the design information.

[0072] Next, in step S02, the cross-section designation unit 552 selects a cross-section to be observed according to the designation by the operator.

[0073] FIG. 7(A) is an example of a cross-section designation screen 90, which can be accessed by tapping the screen transition button 68 from the observation screen 60 shown in FIG. 7(B). By Then, by selecting an individual cross section from the cross section designation button 91, the designated cross section can be designated.

[0074] Next, in step S03, the distance limit setting unit 553 sets the presence or absence of a distance limit and the limit distance in accordance with an input by the operator.

[0075] 7(C) is an example of a distance limit setting screen 80, which can be accessed by tapping the screen setting button from the observation screen 60. The distance limit setting 81 can be checked to turn it ON, and the limit distance LD can be set from the limit distance setting 82, making it possible to set the limit distance.

[0076] Next, in step S04, the view display unit 554 displays the generated plan view 61 and cross section view 62 on the observation screen 60 of the terminal screen unit 51.

[0077] At the same time, the reference line display unit 555 displays the reference lines GL1 and GL2 on the plan view 61 in step S05.

[0078] Next, in step S06, when the operator starts observation by tapping the observation start button 69, the surveying device 10 measures the surveyed device 40 at predetermined intervals and transmits the measurement data to the survey support device 50 for each measurement.

[0079] Next, in step S07, the position information acquisition unit 556 receives the measurement data and acquires the position information of the current position of the surveyed device 40.

[0080] At the same time, in step S08, the measurement information display unit 558 calculates measurement information based on the position information.

[0081] Next, in step S09, the current position display unit 557 displays a marking M1 indicating the current position of the surveyed device 40 on the plan view 61 of the observation screen 60, and the survey information display unit 558 displays the survey information. In addition, when the view display unit 554 displays the cross section 62, the current position display unit 557 may display a marking M2 indicating the current position of the surveyed device 40 superimposed on the cross section 62.

[0082] In step S10, if there is no instruction to execute recording from the operator (No), steps S07 to S10 are repeated, and measurement information is calculated every time position information is acquired, and the display of markings M1 and M2 and the measurement information is updated.

[0083] Then, in step S10, when the operator taps the record button 71 to instruct recording to be performed (Yes), in step S11, the record execution unit 559 records the position information and survey information at that time in the terminal memory unit 53 as observation data.

[0084] Next, step S12 Made with Steps S07 to S12 are repeated until an operation to end the observation is performed by the contractor, and when an instruction to end the observation is received from the operator (Yes), the observation is ended.

[0085] In this manner, in this embodiment, the allowable distance in the forward and backward directions from the specified cross section is displayed as a guide line on the plan view 61 of the observation screen 60 displayed on the terminal screen unit 51, so that the operator can perform cross-sectional observation within the allowable range while visually checking the positional relationship with the current position of the surveyed device 40 held by the operator, which is simultaneously displayed on the observation screen 60. As a result, it is possible to prevent errors in the observation values ​​caused by moving away from the cross section.

[0086] Although the distance from the cross section can be confirmed by the numerical display of the survey related information display, since the operator walks around the survey site holding the surveyed device 40 and the survey support device 50 while proceeding with the observation, it is difficult to pay attention to the distance from the cross section while checking the numerical values ​​one by one. In this embodiment, the distance is displayed as a guide line on the plan view, so that the operator can intuitively grasp the positional relationship between the guide line and the current position, and it becomes possible to proceed with the observation work efficiently.

[0087] (Variation 1) As shown in FIG. 8, a survey support system 100A according to one modified example of this embodiment has roughly the same configuration as the system 100, but the survey support device 50A further includes a warning determination unit 561, a warning control unit 562, and a warning unit 56.

[0088] The warning determination unit 561 compares the distance between the specified cross section and the current position of the surveyed device 40 with a set limit distance, and determines that a warning is necessary when the separation distance exceeds the limit distance. A perpendicular line is drawn from the current position of the surveyed device 40 to the specified cross section, and the distance is regarded as the distance between the specified cross section and the current position of the surveyed device 40.

[0089] When the warning determination unit 561 determines that a warning is necessary, the warning control unit 562 controls the warning unit 56 to execute the warning.

[0090] The warning unit 56 executes a warning operation under the control of the warning control unit 562. The warning unit 56 can be realized, for example, by the terminal screen unit 51, a vibration generating device such as an eccentric mass type vibrator, or a speaker that emits sound, or may be realized by a combination of these.

[0091] If the warning unit 56 is a vibration generating device, it issues a warning by generating vibrations to vibrate the survey support device 50. If the warning unit 56 is a speaker, it issues a warning by issuing a warning sound such as a beep or a voice warning. Alternatively, if the warning unit 56 is the terminal screen unit 51, it issues a warning by displaying a warning 72 as shown in Fig. 10. Note that the warning display is not limited to displaying characters as described above, and may be displayed by changing the color of the observation screen 60, flashing the display, or the like.

[0092] As shown in FIG. 9, when the process starts, the survey support method of the system 100A executes the same processes as those of steps S01 to S09 in steps S101 to S109.

[0093] Next, in step S110, the warning determination unit 561 compares the distance between the specified cross section and the current position of the surveyed device 40 with the set limit distance, and determines that a warning is necessary when the distance exceeds the limit distance.

[0094] If it is determined that a warning is necessary (Yes), in step S111, the warning control unit 562 controls the warning unit 56 to execute the warning, and the process returns to step S107 to repeat steps S107 to S110. If the distance continues to exceed the limit distance, the survey support device 50 will continue to issue the warning, and the operator will naturally move to avoid being warned, that is, within the range of the limit distance, and therefore it is possible to prevent a value from being recorded at a position beyond the limit distance.

[0095] This allows the worker to more clearly understand that the distance limit has been exceeded, and since the worker moves away from the limit without being warned, it is possible to reliably prevent the recording of erroneous measured values.

[0096] Then, in steps S112 to S114, the observation data is recorded in the same manner as in steps S10 to S12, and the observation ends.

[0097] In this modified example, the survey support device 50 is configured to issue a warning to the operator when the separation distance exceeds the limit distance, so that observation away from the cross section can be more reliably prevented.

[0098] (Variation 2) As shown in FIG. 11, a survey support system 100B according to another modified example of this embodiment has roughly the same configuration as the system 100, but a survey support device 50B further includes a recordability determination unit 563.

[0099] The recording possibility determination unit 563 compares the distance between the specified cross section and the current position of the surveyed device 40 with a set limit distance, and when the distance exceeds the limit distance, it determines that recording is not possible and locks the recording button.

[0100] The operation of the surveying support method of system 100B is roughly similar to the operation of system 100A, but in step S110, instead of the warning determination unit 561 determining whether or not a warning is necessary, the recordability determination unit 563 compares the distance between the specified cross section and the current position of the surveyed device 40 with a set limit distance, and determines whether the distance exceeds the limit distance.

[0101] Then, if the separation distance exceeds the limit distance (Yes), in step S111, instead of the warning control unit 562 controlling the warning unit 56 to execute a warning, the recording permission determination unit 563 locks the recording button so that recording cannot be performed even if it is tapped.

[0102] In this modified example, the survey support device 50 is configured not to record observation values ​​if the separation distance exceeds the limit distance, thereby making it possible to more reliably prevent observation values ​​from being recorded at points away from the specified cross section.

[0103] (Variation 3) As shown in FIG. 12, a survey support system 100C according to yet another modified example of this embodiment has roughly the same configuration as the system 100, but a survey support device 50C further includes a guidance control unit 564.

[0104] Each time the position information acquisition unit 556 acquires position information, the guidance control unit 564 calculates the distance between the surveyed device 40 and the specified cross section, calculates the direction in which the distance approaches zero, and displays a guidance display on the plan view to guide the operator in the direction in which the distance approaches zero.

[0105] 13 is an example of a guidance display, and the direction in which the worker should proceed is indicated by an arrow 73 so that the worker does not move away from the cross section. For this purpose, the survey support device 50 may be provided with an electronic compass. According to the above configuration, the operator can always move without straying from the specified cross section, so that cross-sectional observation can be performed without straying from the specified cross section.

[0106] (Variation 4) As a fourth modified example, a survey support system 100D shown in Fig. 14 can be configured. The system 100D has roughly the same configuration as the system 100A, but the survey support device 50D further includes, as functional units, a longitudinal gradient calculation unit 565, a restricted distance update unit 566, and a guide line update unit 567. Also, instead of the warning determination unit 561, a warning determination unit 561D is provided.

[0107] The longitudinal gradient calculation unit 565 calculates the longitudinal gradient of the current position of the surveyed device 40 based on the position information of the current position of the surveyed device 40 and the design information acquired by the position information acquisition unit 556. The longitudinal gradient can be found, for example, by calculating the gradient of a surface on the design information on which the current position is located, which is defined by four constituent points surrounding the current position of the surveyed device 40.

[0108] caveat The determining unit 561D compares the longitudinal gradient with a gradient threshold and determines that a warning is necessary when the longitudinal gradient exceeds the gradient threshold.

[0109] In the warning determination unit 561D, when it is determined that a warning is necessary when the longitudinal gradient exceeds the longitudinal gradient threshold by comparing the longitudinal gradient threshold with the gradient threshold, the warning control unit 562 The warning unit 56 is controlled to issue a warning. The gradient threshold is a threshold of a gradient within an allowable range of distance separation, and may be determined in advance and stored in the terminal storage unit 53. With this configuration, the worker can work while paying attention to situations where the gradient is large and distance separation errors are likely to be large.

[0110] Furthermore, the limit distance update unit 566 updates the setting of the limit distance to a limit distance according to the longitudinal gradient. The limit distance according to the longitudinal gradient may be stored in the terminal storage unit 53 in the form of a table or the like, and the limit distance update unit 566 may set the limit distance by referring to this. The guide line update unit 567 generates a guide line on the plan view that is spaced from the specified cross section in the front-rear direction of the route by the limit distance updated by the limit distance update unit 566, and displays it on the observation screen 60. By configuring in this way, it is possible to display an accurate guide line according to the gradient.

[0111] (Other variations) As another variant, the specified cross section may be automatically specified, not by an operator inputting it during initial setup, but by the cross section set in the design information that is the shortest distance from the current position of the surveyed device 40. [Explanation of symbols]

[0112] 10: Surveying equipment 30: Position acquisition device 40: Surveyed equipment 50:Survey support equipment 50A: Survey support equipment 50B: Survey support equipment 50C: Survey support equipment 51: Terminal screen section (screen section) 53: Terminal memory unit (memory unit) 55: Terminal control unit 56: Warning section 61: Plan view 82: Distance limit setting 100A: Survey support system 100B: Survey support system 100C: Survey support system 551: Design information reading unit 552: Section specification section 553: Distance limit setting section 554: View display section 555: Guide line display section 556: Location information acquisition unit 557:Current position display section 559: Recording Execution Department 561: Warning judgment section 562: Warning control section 563: Recording possibility determination section 564: Guidance control unit GL1, GL2: Reference line

Claims

1. On the computer, reading design information including center point data of a center point set on a center line of a route and configuration point data of configuration points set on a cross section including the center point and perpendicular to the center line; acquiring position information indicating the current position of the surveyed device at a predetermined period; A plan view is generated from the design information, and the plan view is displayed on a screen of the computer. displaying the current location on the plan view, and updating the display of the current location every time the position information is acquired; A survey support program for recording the acquired position information as observation data in a storage unit of the computer, The computer includes: displaying, on the plan view displayed on the screen unit, guide lines indicating positions a predetermined limited distance ahead and behind a designated cross section designated as a cross section of an observation target in a line direction; Calculating a gradient in a line direction of a surface on the design information on which the current position is located as a longitudinal gradient; A preset longitudinal gradient threshold is compared with the calculated longitudinal gradient, a warning is issued when the longitudinal gradient is greater than the threshold value; updating the limit distance in accordance with the calculated longitudinal gradient; A survey support program, characterized in that a guide line indicating a position that is away from the specified cross section by the updated limit distance in the direction of the route on the plan view is displayed.

2. The computer includes: calculating a distance between the current position of the surveyed device and the specified cross section based on the position information and the design information; Comparing the distance with the limit distance; 2. The survey support program according to claim 1, wherein, when the distance exceeds the limit distance, a warning is given that the surveyed device is away from the specified cross section by more than the limit distance.

3. The computer includes: Calculating a distance between the current position of the surveyed device and the specified cross section based on the position information and the design information; Comparing the distance with the limit distance; 3. The survey support program according to claim 1, wherein, when the distance exceeds the limit distance, the position information is not stored in the storage unit as the observation data.

4. The computer includes: calculating a distance between the current position of the surveyed device and the specified cross section based on the position information and the design information; Calculating a direction in which the distance between the current position and the specified cross section approaches 0; 4. The surveying support program according to claim 1, further comprising: a step of guiding an operator in a direction in which the distance approaches zero.

5. Terminal screen section; A terminal control unit; and A terminal storage unit; The terminal control unit a design information reading unit that reads design information including center point data of a center point set on a center line of a route and configuration point data of configuration points set on a cross section that includes the center point and is perpendicular to the center line; a position information acquiring unit that acquires position information indicating a current position of a surveyed device at a predetermined period; a view display unit that generates a floor plan from the design information and displays the floor plan on the terminal screen unit; a current position display unit that displays the current position of the surveyed device on the plan view and updates the display of the current position every time the position information is acquired; a record execution unit that records the acquired location information in the terminal storage unit as observation data; a guide line display unit that displays, on the plan view, guide lines indicating positions a predetermined limited distance ahead and behind a designated cross section designated as a cross section of an observation target; a longitudinal gradient calculation unit that calculates a gradient in a line direction of a surface on the design information where the current position is located as a longitudinal gradient; a gradient determination unit that compares a preset threshold value of a longitudinal gradient with the calculated longitudinal gradient and determines that a warning is necessary when the longitudinal gradient is greater than the threshold value; a warning control unit that issues the warning when it is determined that the warning is necessary; a limit distance update unit that updates the limit distance in accordance with the calculated longitudinal gradient; a guide line update unit that displays, on the plan view, a guide line indicating a position that is away from the specified cross section by the updated limit distance in the forward or backward direction of the route.

6. a position acquisition device for acquiring the current position of the surveyed device; The survey support device according to claim 5, A survey support system, characterized in that the position acquisition device and the survey support device are configured to be able to communicate with each other, and acquire the position information of the device to be surveyed.

7. The computer Reading in design information including center point data of a center point set on a center line of a route and configuration point data of configuration points set on a cross section that includes the center point and is perpendicular to the center line; Obtaining position information indicating the current position of the surveyed device at a predetermined interval; generating a floor plan from the design information and displaying the floor plan on a display unit of the computer; displaying the position of the surveyed device on the plan view, and updating the display of the current position every time the position information is acquired; The acquired position information is recorded as observation data in a storage unit of the computer; Displaying on the plan view a reference line indicating a position a predetermined limit distance away from a designated cross section designated as a cross section of the observation target in a line direction; Calculating a gradient in a line direction of a surface on the design information where the current location is located as a longitudinal gradient; A preset longitudinal gradient threshold is compared with the calculated longitudinal gradient, alert when the longitudinal gradient is greater than the threshold; updating the limit distance in accordance with the calculated longitudinal gradient; A survey support method, characterized in that a guide line indicating a position that is away from the specified cross section in the direction of the route by the updated limit distance is displayed on the plan view.

8. On the computer, reading design information including center point data of a center point set on a center line of a route and configuration point data of configuration points set on a cross section including the center point and perpendicular to the center line; acquiring position information indicating the current position of the surveyed device at a predetermined period; A plan view is generated from the design information, and the plan view is displayed on a screen of the computer. displaying the current location on the plan view, and updating the display of the current location every time the position information is acquired; A survey support program for recording the acquired position information as observation data in a storage unit of the computer, The computer includes: displaying, on the plan view displayed on the screen unit, guide lines indicating positions a predetermined limited distance ahead and behind a designated cross section designated as a cross section of an observation target in a line direction; Calculating a gradient in a line direction of a surface on the design information on which the current position is located as a longitudinal gradient; updating the limit distance in accordance with the calculated longitudinal gradient; Displaying on the plan view a reference line indicating a position that is away from the specified cross section by the updated limit distance in the line direction. A surveying support program with distinctive features.

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