JP7394275B2 - Surveying terminal device and surveying terminal program - Google Patents

Description

The present invention relates to a surveying terminal device and a surveying terminal program, and relates to, for example, a technique for acquiring current position information from a total station and displaying the difference between the measured position and design data.

Topographical information obtained by surveying is the basis for various types of construction work such as building work and civil engineering work.
Observation equipment such as total stations are widely used at various construction sites to obtain topographical information through land surveying, longitudinal and cross-sectional observations, etc. For example, it is used for finished form observation at a position specified by design data or at an arbitrary point, observation for tensioning installation, back-up observation, cross-sectional observation, etc.
When conducting a survey using such a total station, observation equipment is placed on a known point using a tripod, and a target such as a mirror is placed on the survey point (measurement point). The total station automatically tracks the target to be observed, irradiates the target with light at a predetermined frequency (for example, 20Hz), and calculates the target position based on the reflected light. It has a function to send location information to surveying terminal equipment.

The survey terminal device uses the received observation results for the survey points to display the target position as display information on a drawing around the observation point, and is used for performance management, etc.
For example, in the invention described in Patent Document 1, an interpolated value corresponding to the design information at the current position is calculated based on the received target position information and design information, and the difference between the position information and the interpolated value is displayed on the screen. The technology is described.

However, in the technology described in the patent document, the total station observes the target position at a predetermined period of 20 Hz and transmits it to the surveying terminal device, and the surveying terminal device calculates an interpolated value based on the received position information and updates the display screen at a predetermined period of 20 Hz. I'm doing it.
For this reason, for example, when performing performance management at an arbitrary point, it is necessary to repeat calculation of the cross-sectional position at the target position and update of the display at 20 Hz, resulting in wasted processing and power consumption.

For example, when performing a reverse strike, in order to guide the user to a pre-specified design value point, the specified point and target position are displayed on the display screen, as well as physical quantities that indicate the distance and direction from the target position to the specified point. is displayed on the screen.
In this case, for example, at a point as far as 10 meters away from the designated point, there is very little need to update the current position display at 20 Hz.
On the other hand, since the displayed numerical values change frequently due to frequent updates of the image, there are problems in that the screen flickers and it becomes difficult to confirm the numerical values due to the updated display.

JP 2017-37016 Publication

An object of the present invention is to more efficiently update the display of display information based on the acquired current position.

(1) In the invention according to claim 1, there is provided a data acquisition means for acquiring drawing data including coordinates of constituent points corresponding to a site to be measured on site and which are design values, and display information corresponding to the site. a display screen for displaying a display screen, a coordinate acquisition means for acquiring the coordinates of the target observation point E, a calculation means for calculating display information corresponding to the acquired coordinates of the observation point E using the drawing data; The updating means includes an updating means for updating the display on the display screen with the calculated display information, and a display coordinate storage means for storing the coordinates of the observation point E at the time of updating the display information as display coordinates, the updating means , when the distance m from the display coordinates stored in the display coordinate storage means to the acquired coordinates of the observation point E is greater than or equal to a predetermined threshold Th, the display information calculated by the calculation means is displayed on the display screen. Provided is a surveying terminal device characterized by updating.
(2) In the invention as set forth in claim 2, the calculation means is configured to calculate when the distance from the display coordinates stored in the display coordinate storage means to the acquired coordinates of the observation point E is equal to or greater than a predetermined threshold Th. The surveying terminal device according to claim 1, further comprising: calculating display information corresponding to the coordinates of the observation point E.
(3) In the invention according to claim 3, the predetermined threshold Th is a constant value TL0 when there is no target point such as a target point or a design point designated by the operator. A surveying terminal device according to claim 1 or 2 is provided.
(4) In the invention according to claim 4, when a target point such as a target point or a design point is designated by the operator, the predetermined threshold Th is a distance L from the target point to the observation point E. The surveying terminal device according to claim 1 or 2, wherein a larger threshold value is used as the separation distance L becomes larger.
(5) In the invention according to claim 5, the threshold Th is
When the separation distance L is 1 m or more, threshold value TL1 = 10 cm,
When the separation distance L is less than 1 m and 10 cm or more, threshold TL2 = 1 cm,
When the separation distance L is less than 10 cm and 1 cm or more, threshold value TL3 = 1 mm,
There is provided a surveying terminal device according to claim 4, characterized in that the surveying terminal device uses a.
(6) In the invention as set forth in claim 6, the updating means is configured such that at least one of the moving distances (m=Δx, Δy, Δz) for each coordinate axis x, coordinate axis y, and coordinate axis z in the drawing data is equal to or less than the threshold value Th. In the above case, there is provided a surveying terminal device according to any one of claims 1 to 5, characterized in that the display is updated to the one calculated by the calculation means.
(7) In the invention set forth in claim 7, when the distance m between the display coordinates stored in the display coordinate storage means and the acquired coordinates of the observation point E is equal to or greater than a predetermined threshold Th. There is provided a surveying terminal device according to any one of claims 1 to 5, characterized in that the display is updated to the display calculated by the calculation means.
(8) In the invention according to claim 8, the calculation means may include, as the display information, an arbitrarily managed cross section line at observation point E, a cross section of the arbitrarily managed cross section line, and a cross section of observation point E on the cross section. The method according to any one of claims 1 to 7, characterized in that at least one of a position, a cross-sectional position, and a distance between an arbitrarily managed cross-sectional line and an observation point E is calculated. provides surveying terminal equipment.
(9) In the invention according to claim 9, the target on-site measurement is at least one of as-built observation, observation for tensioning installation, observation for reverse driving, and cross-sectional observation. There is provided a surveying terminal device according to any one of claims 1 to 8, characterized in that:
(10) The invention according to claim 10 includes a data acquisition function for acquiring drawing data including the coordinates of the constituent points corresponding to the site to be measured and which are design values, and the coordinates of the target observation point E. a coordinate acquisition function for acquiring the coordinates of the observation point E, a calculation function for calculating display information corresponding to the acquired coordinates of the observation point E using the drawing data, and a calculation function for calculating display information corresponding to the site using the calculated display information. A surveying terminal program that causes a computer to realize an update function for updating the display on a display screen to be displayed, and a display coordinate storage function for storing the coordinates of observation point E at the time of updating the display information in a storage means as display coordinates. The update function updates the display information calculated by the calculation function when the distance m from the display coordinates stored in the storage means to the acquired coordinates of the observation point E is greater than or equal to a predetermined threshold Th. The present invention provides a surveying terminal program characterized in that the display on the display screen is updated by the following steps.

According to the present invention, when the distance m from the display coordinates stored in the display coordinate storage means to the coordinates of observation point E is equal to or greater than a predetermined threshold Th, the display on the display screen is updated with the calculated display information. The display of display information can be updated more efficiently.

FIG. 1 is a diagram for explaining a surveying system using a surveying terminal device. FIG. 2 is a configuration diagram of a surveying terminal device. It is a block diagram of a total station. They are a perspective view based on route data and an explanatory diagram of performance management at arbitrary points. It is an explanatory diagram of an example of a screen display by finished form management at an arbitrary point, and finished form management of an arbitrary cross section. It is a flowchart explaining the procedure of surveying terminal processing. It is an explanatory diagram showing a display screen of a surveying terminal device.

(1) Overview of the embodiment A surveying terminal device 1 according to the present embodiment is a terminal for efficiently performing observation (measurement) work at a construction site using position information of a target 3 transmitted from a total station 4. It is. That is, the surveying terminal device 1 receives the position information of the target 3 transmitted from the total station 4 at predetermined intervals, but does not calculate the display information or update the display at each received predetermined cycle, and does not update the display information from the previous time. The display information is calculated and the calculated display information is updated when the display has moved a predetermined distance from the display position based on the point (display position) at which the display was updated.
When there is no target point, the predetermined distance is defined as a common threshold value Th=1 cm for each of the x-axis, y-axis, and z-axis directions.
On the other hand, when there is a target point, a larger threshold Th is defined as the separation distance L from the target point increases.
As described above, according to the present embodiment, the display information is calculated and the display is updated when the target 3 moves by the threshold value Th from the current display position, and the calculation and update are performed for a slight movement before that. Since this process is not performed, processing efficiency can be improved and flickering on the display screen can be avoided.
In particular, by setting a large threshold Th at a point far from the target point, more efficient processing can be achieved.

Display information includes, for example, information that is displayed on the screen during finished form observation at a position specified in design data or at an arbitrary point (finished form management observation), observation for tensioning installation, counter-pushing observation, cross-sectional observation, etc. It is. Specifically, various information such as the display position of target 3 with respect to the design point displayed on the plan view or cross section, distance information and direction information with respect to the specified design point, and distance from the control cross section with basic design data are collected. It is a target.
In addition, the cross-sectional position of the display position (measurement point), the horizontal distance from the center line, the difference from the design height, the horizontal difference from the designated target point, the height difference, etc. are calculated as the display target.

(2) Details of Embodiment FIG. 1 is a diagram for explaining the configuration of a surveying system using a surveying terminal device 1 of this embodiment.
The surveying system includes a surveying terminal device 1 of the present embodiment, a target 3 placed at a survey point by a worker 2, and a tripod set up on a point whose reference point or coordinate value is known (hereinafter simply referred to as the reference point). The total station 4 is constructed using a total station 4.
The survey terminal device 1 can be carried by the worker 2 at all times, the total station 4 is placed on a reference point by the worker 2, and the target 3 is placed and supported on the survey point by the worker 2.
Note that the following values are known for the installed and arranged total station 4 and target 3. That is, the coordinates (X, Y) and altitude (Z) of the equipment installation point (reference point) and the height H of the total station 4 are known for the total station 4, and the The height (h) of the disposed mirror (reflection prism) is known. These known values and the threshold Th (TL0 to TL3) regarding the moving distance m are stored in the RAM 13 as the basic parameters 130.

The total station 4 is an electronic ranging and goniometer that can simultaneously measure angles (vertical angles, horizontal angles) and oblique distances with one machine. Observe information.
The total station 4 is placed on a tripod set at a reference point, and its position is adjusted so that it is placed vertically above the reference point.
The total station 4 is equipped with an operation unit (input unit), and when the operation of this operation unit is used to perform an observation, and when the observation signal transmitted from the surveying terminal device 1 is received, the total station 4 selects a survey point. The target 3 placed above and supported by the worker 2 is observed, and the observation results (horizontal angle, vertical angle, oblique distance) are transmitted to the surveying terminal device 1.
Note that the total station 4 may calculate the coordinate values (x, y, z) of the target 3 from the observed angle and oblique distance to the target 3, and transmit the calculated coordinate values to the surveying terminal device 1.

The target 3 is placed on a survey point and is supported by the operator 2 while the total station 4 performs the observation. A mirror (reflection prism) for reflecting light from the total station 4 is attached to the target 3.
The total station 4 observes the mirror of the target 3, but the surveying terminal device 1 of this embodiment uses the received observation values and basic parameters 130 to determine the coordinates of the observation point E at the tip position of the target 3. (x, y, z) is being calculated.
In this specification, the coordinates (x, y, z) of the observation point E will be explained as the position of the target 3 and the coordinate values of the target 3.

The surveying terminal device 1 is a portable computer that is powered by a battery, and is configured by, for example, a tablet terminal, a smartphone, or the like that is made strong enough to withstand use at a construction site or the like.
The surveying terminal device 1 has various computer programs necessary for surveying installed, and by executing each program, it communicates with the total station 4 via a wireless line and sends an observation execution signal to the total station 4. At the same time, observation information transmitted from the total station 4 is acquired.

Bluetooth (registered trademark) is used as the wireless line between the surveying terminal device 1 and the total station 4, and mediates wireless communication over a distance of several meters to several hundred meters (usually about 100 to 150 meters) at the survey site. .
Note that in this embodiment, Bluetooth is used as the wireless system, but this is just an example, and other wireless systems such as Wi-Fi may be used.

FIG. 2 is a diagram for explaining the hardware configuration of the surveying terminal device 1. As shown in FIG.
The surveying terminal device 1 includes a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, an input section 14, an output section 15, a communication control section 16, a storage section 17, etc. connected to a bus line. are connected and configured.
In this embodiment, the general-purpose terminal device, such as a tablet terminal, is equipped with a field measurement program to be described later and is executed to function as the surveying terminal device 1. It may also be configured as a dedicated machine.
However, when using a general-purpose terminal device, it is necessary to include a communication control section for communicating with the total station 4, which is necessary in this embodiment.

The CPU 11 is a central processing unit that performs predetermined information processing according to computer programs stored in various storage media, and performs various processing in cooperation with the ROM 12 to the storage unit 17 via a bus line.
Specifically, the CPU 11 performs workpiece observation, tensioning, and reverse processing on the condition that the position of the target 3 identified from the observation information transmitted from the total station 4 has moved by a predetermined distance according to the on-site measurement program 171 described later. Performs calculations of various display information corresponding to various on-site work such as hammering, and creates and updates display screens.
The ROM 12 is a read-only memory, and stores basic programs and parameters for the operation of the CPU 11.

The RAM 13 is a readable and writable memory, and functions as a working memory when the CPU 11 processes information. For example, the RAM 13 temporarily stores basic parameters 130, reception position 131, display position 132, and drawing data 133 as information used by the field measurement program 171.
The basic parameters 130 include the equipment installation point coordinates (X, Y, Z) and height H (see Figure 1) of the total station 4, the height h of the mirror disposed on the target 3, and the distance m the target 3 moves. The threshold Th is saved.

In the receiving position 131, the coordinates (x, y, z) of the observation point E of the target 3 calculated from the observation information transmitted from the total station 4 at a predetermined period are updated and saved.
In the display position 132, the coordinates (x, y, z) of the observation point E when the display information is updated are stored as the coordinates (xd, yd, zd) of the display position. Specifically, immediately after the start of observation, the first calculated coordinates of observation point E are saved, and thereafter, the difference between the coordinates of target 3 at observation point E and the coordinates saved in the display device 132 is saved. (Judged for each value x, y, z) is greater than or equal to the threshold Th, the coordinates of the observation point E are updated.
The drawing data 133 is selected by the worker 2 from the basic design data 172, which will be described later, and is corresponding to the site.

The input unit 14 includes various input devices such as a touch panel 141 and a power button (not shown), and accepts input operations from the worker 2.
The touch panel 141 is formed on the display screen, and when the worker 2 touches and selects a menu button, character button, etc. displayed on the display screen 150, an input corresponding to the selected display is sent to the CPU 11. It is designed to be used against people.

The output unit 15 includes, for example, a display screen 150 using a display device such as a liquid crystal panel.
The display screen 150 of this embodiment includes a main screen that displays various operation menus, a map selection screen that selects map data corresponding to the work site, a selected map (plan view, cross-sectional view), and received observation information. Displays various display information created from and map data.
The communication control unit 16 includes an antenna that transmits and receives radio waves on a wireless line, and drives the antenna to perform wireless communication with the total station 4.
In addition to Bluetooth, the communication control unit 16 can also be provided with a function of using other wireless lines such as Wi-Fi, wireless LAN (Local Area Network), and mobile phone network.

The storage unit 17 includes a large-capacity storage device (storage medium) composed of, for example, a hard disk or a semiconductor storage device, and stores various programs such as a field measurement program 171 and various data such as basic design data 172. has been done.
The field measurement program 171 is a program that communicates with the total station 4 and records survey data (observation results) in the field measurement process in this embodiment.

The basic design data 172 stores the shape of the construction object specified in the design documents, items to be managed for finished form, construction reference point information, coordinate system information to be used, and the like. This basic design data 172 is made into three-dimensional data from the linear calculation sheet, plan view, longitudinal cross-sectional view, and cross-sectional view of the design results, and is information on design values created with CAD, etc., and is used for communication and specified purposes. Obtained and stored via a storage medium.
The basic design data 172 includes, for example, configuration points (points for which design information has been determined) that define road center alignments, normal lines, management cross-sectional lines representing finished cross-sectional shapes, etc. as shape data of construction objects. It consists of coordinate information, etc.

In the example of the perspective view based on the route data shown in FIG. 4, normal lines p, q, r, t, u, road center alignment s, and each management cross-section line D0 to D2... (cross-section No. 0 to No. The coordinate values (x, y, z) of each component point are defined, with the intersection with 2...) as a component point.
That is, the basic design data 172 includes constituent points P0 to P2 on the normal p, constituent points Q0 to Q2 on the normal q, constituent points R0 to R2 on the normal r, and constituent points on the normal t. Constituent points T0 to T2..., constituent points U0 to U2... on the normal line u, constituent points S0 to S2... on the road center line s, etc. are stored.
In addition, cross section No. Each normal line corresponding to 0 and the constituent points P0, Q0, R0, T0, U0, and S0 of the road center alignment are the starting points of each horizontal alignment.

FIG. 3 is a diagram for explaining the hardware configuration of the total station 4. As shown in FIG.
The total station 4 includes a CPU 41, a ROM 42, a RAM 43, an input section 44, an output section 45, a communication control section 46, a storage section 47, a surveying section 48, etc., connected by a bus line.
The configurations of the CPU 41 to the storage section 47 are the same as those of the CPU 11 to the storage section 17.

When the communication control unit 46 receives an instruction signal to perform observation from the surveying terminal device 1, the total station 4 executes observation on the target 3 placed at the survey point and transmits the observation results to the surveying terminal device 1. The observation program for this purpose is stored in the storage unit 47.
The surveying unit 48 includes, for example, an optical device such as a lens, a laser device, a driving device for driving these, a measurement value detection mechanism, and the like, and measures the surveying target and detects the measurement value.
The surveying section 48 can operate in various modes, such as a normal observation mode and an automatic tracking mode for automatically tracking a target, depending on the observation program.
The surveying unit 48 in the total station 4 of this embodiment irradiates light to the target 3 at a predetermined frequency (for example, 20 Hz) while automatically tracking the target 3, and obtains observation results (horizontal angle, vertical angle, etc.) based on the reflected light. angle, slope distance) to the surveying terminal device 1.

The on-site measurement process in the surveying system configured as described above will now be described.
First, a method for determining an arbitrary cross section (cross section) corresponding to the position of the target 3 in workpiece management will be described with reference to FIG. 4.
As shown in FIG. 4, the target 3 of the worker 2 is between the control cross-sectional lines D1 and D2 representing the cross-sectional shape of the finished product, and the coordinates of the observation point E of the target 3 are (x, y, z). A case will be explained below.
Note that the observation point E is assumed to be at a position where the display information update condition is satisfied when the target 3 moves by a distance threshold value Th or more.
Further, the perspective view displayed in FIG. 4 is displayed based on design values created by CAD or the like, which are displayed based on the basic design data 172. On the other hand, observation point E of target 3 in FIG. 4 indicates the actual site position (position installed on the completed form).

First, the surveying terminal device 1 finds a perpendicular line a perpendicular to the road center line s from the observation point E, finds an intersection between the perpendicular line a and the road center line s, and sets this point of intersection as an arbitrary constituent point S12.
Next, the cross-sectional shape is obtained by proportionally calculating and distributing the increases and decreases based on the distance between cross-sections, assuming that the road center line s changes proportionally between cross-sections.
Specifically, two constituent points S1 and S2 on the road center line s sandwiching the obtained arbitrary constituent point S12 are determined, and the distance S1S2 from the constituent point S1 to the constituent point S2 and the arbitrary distance from the constituent point S1 are determined. The ratio (S1S12/S1S2) is determined from the distance S1S12 to the constituent point S12.
Next, the composition points P1, P2, the composition points Q1, Q2, and the composition points at the intersections of the managed cross-sectional lines D1, D2 passing through the composition points S1 and S2 and the respective normals p, q, r, t, and u, are determined. The points R1, R2, the constituent points T1, T2, and the constituent points U1, U2 are determined, and the distance P1P2, distance Q1Q2, distance R1R2, distance T1T2, and distance U1U2 between the constituent points is determined.
Then, a point obtained by adding the distance P1P2×(S1S12/S1S2) from the constituent point P1 toward the constituent point P2 is determined as an arbitrary constituent point P12 on the normal p.
Similarly, an arbitrary constituent point Q12 on the normal line q, an arbitrary constituent point R12 on the normal line r, an arbitrary constituent point T12 on the normal line t, and an arbitrary constituent point U12 on the normal line u are determined.
Finally, a virtual line (indicated by a dotted line in FIG. 4) connecting the obtained arbitrary constituent points P12, Q12, R12, S12, T12, and U12 is defined as an arbitrary management cross-sectional line D12.

In addition, although the case where the road center alignment s is defined is explained as an example, if the road center alignment s is not defined, the normal line with the shortest distance from the observation point E is determined, and the normal line is The point of intersection with a perpendicular line a perpendicular to , may be an arbitrary constituent point to be determined first. For example, if it is assumed that the road center line s shown in FIG. 4 does not exist, the normal t is selected as the normal with the shortest distance from the observation point E, and the arbitrary constituent point T12 is determined first.

FIG. 5 shows the display information to be displayed on the screen by the performance management at an arbitrary point indicated by the observation point E and the performance management at an arbitrary cross section.
FIGS. 5A and 5B illustrate the function of checking the height difference at arbitrary points for different cross sections.
As shown in FIG. 5(a), the cross-sectional shape determined by the method described in FIG. 4 is displayed on the screen, and the position of the observation point E is displayed as an image.
By displaying the cross-sectional position 152 as "No. 1+14.332", the displayed cross-section becomes the cross-section No. It can be seen that the cross section is 14.332 m away from the managed cross section line D1 of No. 1 in the direction of the managed cross section line D2, and that the displayed cross section is along the arbitrary managed cross section line D12.

Furthermore, the difference ΔH between the horizontal distance ΔW from the center line (road center line s passing through arbitrary component point S12) and the design height at the design location (observation point E) is displayed.
The design height is the height to the intersection of the vertical line drawn from the observation point E and the arbitrary management cross section line D12.
As described above, in the finished form management at an arbitrary point, the cross-sectional shape, the position of the observation point E, the cross-sectional position 152, the horizontal distance ΔW, and the difference ΔH from the design height are calculated and displayed as display information.
Although not shown in FIG. 5, it is also possible to display the distance from observation point E to the intersection of perpendicular lines drawn to the nearest surface as "vertical distance." The surface closest to the observation point E is the left surface in the case of FIG. 5(a). On the other hand, in the case of FIG. 5(b), the lower surface corresponds, and the vertical separation in this case is the same as the difference ΔH from the design height.

In the example of FIG. 5(b), compared to the case of (a), the position of the target 3 is further away from the control cross section line D1, and has moved from the slope beside the road to the position above the road. .
That is, the cross-sectional position 152 is displayed as "No. 1+15.312", and it can be seen that the cross-sectional position 152 has moved to a position farther from the control cross-sectional line D1 than in the case of FIG. 5(a).
Furthermore, the display position of observation point E has also been moved from on the slope to on the road.
Note that the display information to be displayed is the same as in (a).

In the example of FIG. 5(c), on the screen of FIG. 5(b), worker 2 selects the object in order to perform performance management of an arbitrary cross section corresponding to observation point E (cross section along arbitrary management cross section line D12). This shows a case where an arbitrary constituent point T12 is designated as a target point.
In FIG. 5(c), the arbitrary constituent point T12 is displayed with a double circle to clearly indicate that it is a designated target point.
Then, a horizontal difference (distance) ΔW and a height difference ΔH from the target point (target point) of the measurement location to the observation point E are displayed. This makes it possible to collect information indicating that the actual road shape at the target point is deviated by the difference ΔW and the difference ΔH.
Further, as the cross-sectional position 152, "No. 1+15.312" is displayed.

Note that the target point specified for performance management and tensioning is the intersection of the normal (or road center alignment) and the arbitrarily managed cross-sectional line. Therefore, when the observation point E moves, the target point also moves on the normal line, etc.
To explain using the example of FIG. 4, when the worker 2 specifies an arbitrary constituent point T12 on the managed cross-sectional line D12 as a target point, a normal t corresponding to the arbitrary constituent point T12 is also specified. As the target 3 moves, the control cross-section line D12 displayed on the screen also changes while changing its shape, so that the intersection of the designated normal t and the changed control cross-section line D12 forms a new arbitrary configuration. Point T12 becomes the target point.

Next, surveying terminal processing by the surveying terminal device 1 will be explained.
It is assumed that the total station 4 is installed at a reference point (a reference point and a point whose coordinates are known) by the worker 2 or his assistant. The known point is the point where the total station 4 is installed at an arbitrary position using the backward intersection method.

FIG. 6 is a flowchart illustrating the procedure of surveying terminal processing.
The CPU 11 of the surveying terminal device 1 first prepares for observation (step 10). That is, the CPU 11 acquires the reference point coordinates (X, Y, Z) and height H of the total station 4, the mirror height h of the target 3, and the threshold value Th (TL0 to TL3) of the moving distance m, and stores the basic parameters 130 in the RAM 13. Save to.
Further, the CPU 11 reads drawing data selected by the screen operation by the worker 2 from the basic design data 172 and stores it in the drawing data 133 of the RAM 13.

Next, the CPU 11 transmits an observation signal to the total station 4 based on the screen operation of the observation start button by the worker 2 (step 12). As a result, the total station 4 automatically tracks the position of the target 3 and transmits observation results (horizontal angle, vertical angle, oblique distance) to the surveying terminal device 1 at predetermined intervals.
Thereafter, the CPU 11 receives the observation results transmitted at predetermined intervals, and updates and stores them in the RAM 13 (step 14).
Next, the CPU 11 calculates the coordinates (x, y, z) of the observation point E of the observed target 3 from the observation results stored in the RAM 13 and the basic parameters 130 (step 16), and calculates the calculated coordinates (x , y, z) to update the reception position 131 in the RAM 13 (step 18).

Next, the CPU 11 determines whether the moving distance m (Δx, Δy, Δz) of the target 3 has exceeded the threshold Th (step 20).
That is, the CPU 11 calculates the moving distance m for each coordinate axis from the coordinate position (xd, yd, zd) of the display position 132 to the coordinate (x, y, z) of the receiving position 131 from the RAM 13 (moving distance Δx in the x-axis direction, A moving distance Δy in the y-axis direction and a moving distance Δz in the z-axis direction are calculated, each is compared with a threshold Th, and it is determined whether at least one is greater than or equal to the threshold Th.

Here, the threshold value Th for the moving distance m of the target 3 will be explained.
When there is no target point such as a target point or a design point designated by the worker 2, the threshold Th of the moving distance m is defined as TL0=n (=1 cm).
Therefore, when there is no target point and the target 3 has moved 1 cm or more in any of the x-axis, y-axis, and z-axis directions, display information such as a cross-sectional view, which will be described later, is updated. .

On the other hand, when a target point is specified, the threshold Th is defined according to the separation distance L from the target point, and the larger the separation distance L is (the farther away), the larger the value is specified.
That is, in this embodiment, the following is defined.
When the separation distance L is greater than or equal to L1 (for example, L1=1 m), the threshold value TL1 (for example, TL1=10 cm) is set.
When the separation distance L is less than L1 and greater than or equal to L2 (for example, L2=10 cm), the threshold value TL2 (for example, TL2=1 cm) is set.
When the separation distance L is less than L3 (for example, L3=10 cm), the threshold value is L3 (for example, TL3=1 mm).
Regarding each of the above threshold values Th=TL1, TL2, and TL3, the same value of the threshold Th is defined for each of the x-axis, y-axis, and z-axis directions.

As described above, according to the present embodiment, the display information is calculated and the display is updated when the target 3 moves by the threshold value Th from the current display position, and the calculation and update are performed for a slight movement before that. Since this process is not performed, it is possible to improve processing efficiency and avoid flickering on the display screen.
In particular, when there is a target point, the closer you are to the target point, the more frequently you need to check the screen to fine-tune the position of the target 3, and conversely, the farther you are from the target point, the more you only need to be able to roughly check the distance and direction. The frequency of screen confirmation will be reduced.

If all of the moving distances m (Δx, Δy, Δz) of each coordinate axis are equal to or less than the threshold Th (step 20; N), the CPU 11 moves to an extent that can provide effective information to the worker 2 of the target 3. If it is determined that the end of observation has not been instructed, the process moves to step 26 to determine whether an instruction to end the observation has been issued, and if the end of the process has not been instructed (step 26; N), the process proceeds to step 14, which is the process of receiving observation results. Go back and repeat the process.
On the other hand, if at least one of the moving distances m (Δx, Δy, Δz) of each coordinate axis is equal to or greater than the threshold Th (step 20; Y), the CPU 11 stores the values at the display position 132 (xd, yd, zd) in the RAM 13. , is updated with the value of the receiving position 131 (x, y, z).

Next, the CPU 11 performs display update processing for the display position 132 (step 24).
That is, the CPU 11 performs display update processing at the new display position (xd, yd, zd) 132 (=latest observation point E=receiving position 131) updated in step 22.
The specific display update process is as follows.
On the display screen 150 of the surveying terminal device 1, if the worker 2 selects finished form management at an arbitrary point as on-site measurement, the various display information explained in FIGS. 4 and 5 is calculated, displayed on the screen. That is, the arbitrarily controlled cross-sectional line (D12 in FIG. 4) at observation point E (xd, yd, zd), its cross-section, the position of observation point E on the cross-section, the cross-sectional position 152, and the horizontal distance ΔW. , the vertical distance, and the difference ΔH from the design height are calculated as display information and displayed on the display screen 150.

On the other hand, when sizing is selected on the display screen 150, the cross section at observation point E is calculated and displayed, and the position of observation point E is (coordinate position of display position 132) is displayed as an image.
In addition, in the case of tensioning, similar to the target point specified by the worker 2 in finished form management, the position on the arbitrary control cross-sectional line (D12 in FIG. 4) where tensioning is to be performed (the tensioning position) has been decided. Therefore, the CPU 11 also calculates and displays the horizontal distance, vertical distance, vertical distance, etc. of the observation point E from the particular tension position.

FIG. 7 shows the progress management screen as a specific display state of the display screen 150 of the surveying terminal device 1, where (a) shows the cross-sectional view at observation point E, and (b) shows the state where the cross-sectional view at observation point E is displayed. This is the connection shown in a plan view.
As shown in FIG. 7A, the condition column 151 of the display screen 150 displays that the object of on-site measurement is "inspection/inspection" in finished form management.
In the condition column 151, other options such as "tightening" and "reverse hitting" are displayed depending on the object of on-site measurement.

As explained in FIG. 5, the cross-sectional position 152 displays the position of the cross-sectional view to be displayed. That is, in the example of FIG. 7(a), "No. 0+0.243" is displayed. This means that the displayed cross section is cross section No. This indicates that the cross section is 0.243 m away from the controlled cross section line D0 of No. 0 in the direction of the controlled cross section line D1.
The display selection field 153 displays selection buttons for selecting drawings to be displayed in the drawing field 154. By selecting the "cross" button, a cross-sectional view of observation point E is displayed (FIG. 7(a)), and by selecting the "plane" button, a plan view is displayed (FIG. 7(b)).

The designated cross-sectional view and plan view are displayed in the drawing column 154.
In the cross-sectional view of FIG. 7(a), as explained in FIGS. 4 and 5, the arbitrarily managed cross-sectional line D01 representing the cross-section corresponding to the observation point E is displayed, and each arbitrary constituent point P01, Q01, R01, . . . are displayed. In addition, in the display example of FIG. 7(a), the arbitrary constituent point R01 is located on the road center line.
The position of observation point E is also displayed.
Note that while FIGS. 4 and 5 show the site where a road is laid on the side of a slope, the drawing column 154 in FIG. 7 shows the site of a bank (levee) on the side of a river.

The display information column 155 displays columns for vertical distance, CL distance, vertical direction, horizontal direction, design, and actual measurement, which display information indicating the relationship with observation point E.
"Vertical distance" includes the distance from observation point E to the intersection of the perpendicular lines drawn on the nearest surface (in the example of Figure 7, the right slope) (0.052 m in the example of Figure 7 (a)), the vertical distance The direction (same, bottom) is displayed.
In addition, instead of/in addition to the "vertical distance", the "vertical distance" corresponding to the difference ΔH from the design height at the measurement point (observation point E) is displayed as explained in FIGS. 5(a) and (b). You can do it like this.

"CL distance" is the distance corresponding to the horizontal distance ΔW from the center line (0.325 m in the example of FIG. 7 (a)), the horizontal direction (the same, ) is displayed.
In the "left-right direction" and "vertical direction", as explained in FIG. 5(c), when a target point is selected, the distance and direction from observation point E to the target point are displayed. In the example in Fig. 7, no target point is selected, so "?" is written in the "left/right direction" (upper column) and "up/down direction" (lower column), and "-.-" is written in the distance column. ' is displayed.
For the distance and direction in the "left-right direction", the distance on the xy coordinates represented in the plan view and the arrow indicating the left-right direction are displayed.
For the distance and direction in the "vertical direction", the difference in height from the observation point E to the target point and an arrow indicating the vertical direction are displayed.

In the "design" column, when a target point is selected, each coordinate value of the target point is displayed. In the example of FIG. 7, since no target point has been selected, "-.-" is displayed.
In the "actual measurement" column, the coordinate values (xd, yd, zd) of the display position 132 of the RAM 13 are displayed as the coordinates of the observation point E.
In the operation button field 156, various operation buttons such as "setting", "connection", "automatic tracking", ... return button, main screen button, etc. are displayed.

Returning to FIG. 6, after the calculation of display information and the process of updating the display screen 150 (step 24) are completed, the CPU 11 determines whether or not the end of the process has been instructed by the operator 2 (step 26).
If the termination instruction has not been given (step 26; N), the CPU 11 returns to the observation result reception process in step 14 and repeats the process.
On the other hand, if a termination instruction is given (step 26; Y), the CPU 11 terminates the surveying terminal process.

As explained above, according to the present embodiment, the current position (coordinate position of display position 132) from which the display information displayed on the screen is calculated and the newly acquired current position (coordinate position of reception position 131) When the distance from the coordinate position of In addition, screen flickering caused by frequent updates can be suppressed.

Although the configuration and operation of the surveying terminal device 1 have been described above, this is merely an explanation of the embodiment, and the present invention can be modified in various ways.
For example, in the described embodiment, the calculation of display information and the updating of the display screen in the surveying terminal device 1 are both performed based on the moving distance m of the target 3, apart from the predetermined period of receiving observation results from the total station 4. I explained the case.
On the other hand, even if the display information is calculated every time observation results are received from the total station 4 at a predetermined period, and the display screen is updated when the moving distance m of the target 3 is equal to or greater than the threshold Th. good.

Also, although the coordinates (x, y, z) of observation point E are calculated based on the observation results received from total station 4, it is also possible to obtain the coordinates (x, y, z) of observation point by other methods. You can do it like this.
For example, a highly accurate GPS receiving device may be mounted on the target 3 to acquire the coordinates (x, y, z) from the target 3.
Furthermore, the surveying terminal device 1 may be equipped with a configured GPS receiving device.
Note that it is preferable that the GPS receiving device includes a correction means or the like to improve observation accuracy.

Furthermore, in the embodiment, when determining whether the moving distance m of the target 3 has moved by the threshold value Th (TL0 to TL3) or more, the moving distance m (Δx, Δy , Δz) is greater than or equal to the threshold Th.
On the other hand, it may be determined whether the distance between the display position (xd, yd, zd) and the reception position (x, y, z) is equal to or greater than the threshold Th.

1 Survey terminal device 2 Operator 3 Target E Observation point 4 Total station 11 CPU
12 ROM
13 RAM
130 Basic parameters 131 Reception position 132 Display position 133 Drawing data 14 Input section 141 Touch panel 15 Output section 150 Display screen 151 Condition field 152 Cross-sectional position 153 Display selection field 154 Drawing field 155 Display information field 156 Operation button field 16 Communication control section 17 Memory Part 171 Field measurement program 172 Basic design data p, q, r, t, u Normal line s Road center alignment P0..., Q0..., R0..., S0..., T0..., U0... Constituent points P12, Q12, R12, S12 , T12, U12 Arbitrary constituent points D1, D2,... Management cross section line D12 Arbitrary management cross section line

Claims (10)

data acquisition means for acquiring drawing data corresponding to a site to be measured and including coordinates of constituent points that are design values;
a display screen that displays display information corresponding to the site;
Coordinate acquisition means for acquiring the coordinates of the target observation point E;
Calculating means for calculating display information corresponding to the acquired coordinates of the observation point E using the drawing data;
updating means for updating the display on the display screen with the calculated display information;
Display coordinate storage means for storing the coordinates of observation point E at the time of updating the display information as display coordinates,
The updating means updates the display information calculated by the calculating means when a distance m from the display coordinates stored in the display coordinate storage means to the acquired coordinates of the observation point E is greater than or equal to a predetermined threshold Th. Update the display screen display,
A surveying terminal device characterized by: The calculation means is configured to display display information corresponding to the coordinates of the observation point E when the distance from the display coordinates stored in the display coordinate storage means to the acquired coordinates of the observation point E is greater than or equal to a predetermined threshold Th. calculate,
The surveying terminal device according to claim 1, characterized in that: The predetermined threshold Th is a constant value TL0 when there is no target point such as a target point or a design point specified by the operator.
The surveying terminal device according to claim 1 or 2, characterized in that: When a target point such as a target point or a design point is specified by the operator, the predetermined threshold Th increases as the distance L increases depending on the distance L from the target point to the observation point E. A threshold is used,
The surveying terminal device according to claim 1 or 2, characterized in that: The threshold Th is
When the separation distance L is 1 m or more, threshold value TL1 = 10 cm,
When the separation distance L is less than 1 m and 10 cm or more, threshold TL2 = 1 cm,
When the separation distance L is less than 10 cm and 1 cm or more, threshold value TL3 = 1 mm,
use,
5. The surveying terminal device according to claim 4. The updating means calculates the amount of time calculated by the calculating means when at least one of the moving distances (m=Δx, Δy, Δz) for each coordinate axis x, coordinate axis y, and coordinate axis z in the drawing data is greater than or equal to the threshold Th. refresh the display,
A surveying terminal device according to any one of claims 1 to 5. The updating means updates the display to the one calculated by the calculating means when a distance m between the display coordinates stored in the display coordinate storage means and the acquired coordinates of the observation point E is equal to or greater than a predetermined threshold Th. ,
A surveying terminal device according to any one of claims 1 to 5. The calculation means includes, as the display information, an arbitrarily managed cross section line at observation point E, a cross section of the arbitrarily managed cross section line, a position of observation point E on the cross section, a cross section position, an arbitrarily managed cross section line and observation. Calculate at least one of the following: the distance of point E;
A surveying terminal device according to any one of claims 1 to 7. The target on-site measurement is at least one of as-built observation, observation for tensioning installation, observation for reverse driving, and cross-sectional observation.
A surveying terminal device according to any one of claims 1 to 8. A data acquisition function that acquires drawing data that corresponds to the site that is the target of on-site measurement and includes the coordinates of the constituent points that are design values;
A coordinate acquisition function that acquires the coordinates of the target observation point E;
a calculation function that calculates display information corresponding to the acquired coordinates of the observation point E using the drawing data;
an update function that updates the display of a display screen that displays display information corresponding to the site with the calculated display information;
A surveying terminal program that causes a computer to realize a display coordinate storage function for storing coordinates of an observation point E when the display information is updated in a storage means as display coordinates, the program comprising:
The update function updates the display with the display information calculated by the calculation function when the distance m from the display coordinates stored in the storage means to the acquired coordinates of the observation point E is greater than or equal to a predetermined threshold Th. update the screen display,
A surveying terminal program characterized by the following.

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