JP2025072900A - Survey support system and survey support method - Google Patents

Abstract

To use data obtained by surveying using GNSS in real time.SOLUTION: A surveying support system includes a surveying device that receives a signal from a satellite, a terminal device that connects to a network, and a server device capable of communicating with the surveying device and the terminal device. The terminal device includes a transmitting unit that transmits a recording instruction to give instruction to record position coordinates of the surveying device. The server device includes a calculation unit that calculates the position coordinates of the surveying device based on satellite data obtained from the satellite by the surveying device, an acquisition unit that acquires the recording instruction transmitted from the terminal device, and a memory unit that stores the position coordinates calculated by the calculation unit when the recording instruction is acquired by the acquisition unit.SELECTED DRAWING: Figure 6

Description

The present invention relates to a survey support system and a survey support method.

Generally, at construction sites, for example, surveying is carried out to determine the position of stakes at the construction site, confirm the centering position of foundation piles, trace the terrain, manage heights, etc. For such surveying, a Global Navigation Satellite System (GNSS), which receives signals from satellites to determine position, such as the Global Positioning System (GPS), may be used.

When a survey using GNSS is carried out, an operator sets up a surveying instrument at the surveying point. The instrument is made up of a receiving device for receiving signals from satellites and a processing unit attached to a pole. When the receiving device receives a signal from the satellite, the processing unit calculates the position coordinates of the current position of the surveying instrument based on the received signal.

JP 2005-43088 A JP 2006-3104 A

However, when surveying is performed using the above-mentioned surveying instrument, there is a problem in that it is difficult to use the position coordinate data obtained by the surveying in real time. In other words, while the position coordinate data obtained by the surveying is usually used and viewed at a work site or the like that is far from the surveying site, the position coordinate data calculated by the arithmetic processing device attached to the surveying instrument cannot be used until the surveying instrument is brought back to the work site or the like.

In addition, even if a communication terminal device is attached to the surveying instrument and the position coordinate data can be transmitted by the communication terminal device, the position coordinate data cannot be used externally until the transmission operation is performed by an operator at the surveying site, and real-time performance cannot be guaranteed.

The present invention has been made in consideration of the above, and aims to provide a survey support system and a survey support method that can utilize data obtained by surveying using GNSS in real time.

A surveying support system according to one aspect of the present invention is a surveying support system having a surveying device that receives signals from a satellite, a terminal device that connects to a network, and a server device that can communicate with the surveying device and the terminal device, the terminal device having a transmission unit that transmits a recording instruction that instructs the recording of the position coordinates of the surveying device, and the server device having a calculation unit that calculates the position coordinates of the surveying device based on satellite data obtained from a satellite by the surveying device, an acquisition unit that acquires the recording instruction transmitted from the terminal device, and a storage unit that stores the position coordinates calculated by the calculation unit when the recording instruction is acquired by the acquisition unit.

According to this system, the server device calculates the position coordinates of the surveying instrument and records the position coordinates according to instructions from the terminal device, so that the terminal device can instantly view the history of position coordinates by connecting to the server device via a network. In other words, data obtained by surveying using GNSS can be used in real time.

A survey support system according to one aspect of the present invention is configured such that, in the above system, the transmission unit transmits a recording instruction to instruct the recording of position coordinates for each set time or set distance, and the storage unit stores the position coordinates calculated by the calculation unit continuously for each set time or set distance.

This system automatically records the position coordinates of the surveying instrument at set times or distances, allowing users to view changes in the position of the instrument over time.

A survey support system according to one aspect of the present invention is configured such that, in the above system, the calculation section calculates position coordinates of the surveying instrument based on the satellite data and correction data obtained at a predetermined reference station.
According to this system, the position coordinates of the surveying instrument are calculated based on satellite data and correction data, so that highly accurate position coordinates can be calculated using a relative positioning method such as RTK positioning.

A survey support system according to one aspect of the present invention is configured such that, in the above system, the server device further includes a generating unit that generates display screen information that displays the position coordinates stored by the storage unit, and the terminal device further includes a display unit that displays the display screen information generated by the generating unit.

According to this system, a display screen showing the recorded position coordinates is displayed on the terminal device, so that when the position coordinates of the surveying instrument are recorded on the server device, these position coordinates can be displayed on the terminal device immediately.

In one aspect of the present invention, the survey support system is configured such that, in the above system, the generating unit generates display screen information that displays the position coordinates in a display format that corresponds to the accuracy of the position coordinates.

This system displays location coordinates in a manner that corresponds to the accuracy of the location coordinates, making it easy to check the accuracy of the location coordinates when viewing the location coordinate history.

In one aspect of the present invention, the survey support system is configured such that, in the above system, the generation unit generates display screen information in which a marker with a display format corresponding to the accuracy of the position coordinates is superimposed on a map image.

With this system, a marker with a display format according to the accuracy of the location coordinates is superimposed on the map image, making it easy to check the accuracy of the location coordinates when checking them on the map.

In one aspect of the present invention, the survey support system is configured such that, in the above system, the generating unit generates display screen information that displays an indicator showing whether the communication status between the surveying device and the server device is good or bad.

This system displays an indicator showing the communication status between the surveying instrument and the server device, so the accuracy of the recorded position coordinates can be determined based on the quality of the communication status.

In one aspect of the present invention, the surveying support system is configured such that the surveying device has a rod-shaped pole, a receiver attached to the tip of the pole for receiving signals from a satellite, and a communications terminal for acquiring satellite data contained in the signals received by the receiver and transmitting the satellite data to the server device.

With this system, a pole equipped with a receiver and a communications terminal serves as a surveying instrument, making it possible to carry all the equipment necessary for positioning at the survey site together.

A surveying support method according to one aspect of the present invention is a surveying support method in a surveying support system having a surveying device that receives signals from a satellite, a terminal device connected to a network, and a server device capable of communicating with the surveying device and the terminal device, in which the server device calculates the position coordinates of the surveying device based on satellite data obtained from a satellite by the surveying device, the terminal device transmits a recording instruction to instruct the recording of the position coordinates of the surveying device, the server device acquires the recording instruction transmitted from the terminal device, and when the server device acquires the recording instruction, it stores the calculated position coordinates in a memory unit.

According to this method, the server device calculates the position coordinates of the surveying instrument and records the position coordinates according to instructions from the terminal device, so that the terminal device can connect to the server device via a network and instantly view the history of position coordinates. In other words, data obtained by surveying using GNSS can be used in real time.

According to the present invention, data obtained by surveying using GNSS can be used in real time.

FIG. 1 is a diagram showing a configuration of a survey support system according to an embodiment. FIG. 2 is a diagram for explaining the structure of the surveying instrument. FIG. 3 is a diagram showing an example of a spirit level. FIG. 4 is a block diagram showing the configuration of a communication terminal. FIG. 5 is a block diagram showing a configuration of a terminal device according to an embodiment. FIG. 6 is a block diagram showing a configuration of a server device according to an embodiment. FIG. 7 is a flow diagram showing a survey support method according to an embodiment. FIG. 8 is a diagram showing an example of a display screen of the terminal device. FIG. 9 is a diagram showing another example of the display screen of the terminal device. FIG. 10 is a diagram showing yet another example of the display screen of the terminal device.

One embodiment of the present invention will be described below with reference to the attached drawings. The embodiment described below is an example, and should not be construed as being limited by this description.

Figure 1 is a diagram showing the configuration of a survey support system according to one embodiment. The survey support system shown in Figure 1 is configured by connecting a reference station 10, a surveying instrument 100, a terminal device 200, and a server device 300 via a network.

The reference station 10 is a reference station used for RTK (Real Time Kinematic) positioning. That is, the reference station 10 performs positioning using GNSS, creates correction data for correcting the positioning based on its own known position coordinates and the position coordinates obtained by the positioning, and distributes the correction data to the surveying instrument 100 as necessary. The reference stations 10 may be located at multiple points, and the surveying instrument 100 obtains the correction data from, for example, the nearest reference station 10.

The surveying instrument 100 is a device carried by an operator to a surveying site, and has a structure in which a receiver for receiving signals from a satellite and a communication terminal for sending and receiving data are attached to a rod-shaped pole. When an operator sets up the surveying instrument 100 at a survey point, the receiver receives the signal from the satellite and performs positioning. The communication terminal then transmits the data obtained by positioning to the server device 300. The structure of the surveying instrument 100 will be described in detail later.

The terminal device 200 is a personal computer, smartphone, tablet terminal, or the like that can be connected to a network, and may be carried by the worker to the surveying site together with the surveying instrument 100, or may be installed in a work site or the like that is separate from the surveying site. The terminal device 200 communicates with the server device 300 via the network. Specifically, the terminal device 200 transmits a recording instruction to the server device 300 to instruct the server device 300 to record the position coordinates of the surveying instrument 100, and receives display screen information from the server device 300 that displays the position coordinates of the surveying instrument 100.

The server device 300 is capable of communicating with the surveying instrument 100 and the terminal device 200, and calculates the position coordinates of the surveying instrument 100 based on data received from the surveying instrument 100. The server device 300 also records the calculated position coordinates of the surveying instrument 100 in accordance with a recording instruction received from the terminal device 200. Furthermore, the server device 300 generates display screen information that displays the recorded position coordinates of the surveying instrument 100, and transmits it to the terminal device 200.

Figure 2 is a diagram showing the structure of the surveying instrument 100. As shown in Figure 2 (a), the surveying instrument 100 has a GNSS receiving antenna 110, a receiver 120, a communication terminal 130, a battery 140, a spirit level 150, and a pole 160.

The GNSS receiving antenna 110 and receiver 120 are attached to one end of a pole 160 and receive signals from GNSS satellites. The receiver 120 acquires GNSS data from the received signals, including information used for positioning, such as the satellite orbit and time, and notifies the communication terminal 130. The GNSS data acquired by the receiver 120 also includes information on the accuracy of positioning, such as the strength of the received signal and the number of satellites from which signals were received.

The communication terminal 130 is communicatively connected to the receiver 120, for example, via Bluetooth (registered trademark) or Wi-Fi (registered trademark), and acquires GNSS data from the receiver 120. The communication terminal 130 also receives correction data from the reference station 10, for example, via a mobile communication line. The communication terminal 130 then transmits positioning data including the GNSS data and the correction data to the server device 300, for example, via a mobile communication line. The receiver 120 and the communication terminal 130 may be connected by wire.

The battery 140 is connected to the receiver 120 and the communication terminal 130 by a cable (not shown) and supplies power to the receiver 120 and the communication terminal 130. Although not shown in the figure, the communication terminal 130 and the battery 140 may be stored in, for example, a waterproof case.

The level 150 is used to check whether the surveying instrument 100 operated by the operator is set up vertically. Specifically, as shown in FIG. 3, the level 150 has a structure in which a liquid containing air bubbles 150b is filled in a container having a transparent upper surface on which a frame line 150a is drawn. The operator can set up the surveying instrument 100 vertically by adjusting the attitude of the surveying instrument 100 so that the air bubble 150b is contained within the central frame line 150a.

The pole 160 is a rod-shaped member to which the above-mentioned components are attached, and is extendable at the extension section 160a. That is, by contracting the pole 160 at each extension section 160a, the surveying instrument 100 can be made smaller, for example, as shown in FIG. 2(b). Therefore, during surveying work, the pole 160 can be extended to use the surveying instrument 100 in the state shown in FIG. 2(a), and during transportation, the pole 160 can be contracted to carry the surveying instrument 100 in the state shown in FIG. 2(b). Also, during transportation, the surveying instrument 100 can be stored in a case 170 and carried, for example, as shown in FIG. 2(c).

Here, the configuration of the communication terminal 130 of the surveying instrument 100 will be described with reference to FIG. 4. FIG. 4 is a block diagram showing the configuration of the communication terminal 130. The communication terminal 130 shown in FIG. 4 has a GNSS data acquisition unit 131, a correction data acquisition unit 132, a transmission control unit 133, and a wireless communication unit 134.

The GNSS data acquisition unit 131 acquires GNSS data received from satellites from the receiver 120 connected, for example, via Bluetooth or Wi-Fi. The GNSS data acquisition unit 131 may also acquire GNSS data from a wired connected receiver 120.

The correction data acquisition unit 132 acquires the correction data received from the reference station 10 by the wireless communication unit 134. That is, the correction data acquisition unit 132 acquires correction data related to positioning correction from, for example, the reference station 10 closest to the surveying instrument 100.

The transmission control unit 133 transmits positioning data including the GNSS data and correction data from the wireless communication unit 134 to the server device 300. That is, the transmission control unit 133 constantly transmits the GNSS data received from the satellite and the correction data received from the reference station 10 as positioning data to the server device 300. This eliminates the need for calculation processing in the communication terminal 130, reducing the processing load, and allows the positioning data to be transmitted to the server device 300 in real time.

The wireless communication unit 134 is an interface that performs wireless communication, for example, via a mobile communication line, and transmits the positioning data output from the transmission control unit 133 to the server device 300. The wireless communication unit 134 also receives correction data transmitted from the reference station 10 and outputs it to the correction data acquisition unit 132.

Next, the configuration of the terminal device 200 will be described with reference to FIG. 5. FIG. 5 is a block diagram showing the configuration of the terminal device 200. The terminal device 200 shown in FIG. 5 has a wireless communication unit 210, a recording instruction unit 220, a display instruction unit 230, and a display unit 240.

The wireless communication unit 210 is an interface that performs wireless communication, for example, via a mobile communication line, and transmits and receives signals between the server device 300. Specifically, the wireless communication unit 210 transmits recording instructions and display instructions to the server device 300, and receives display screen information from the server device 300.

The recording instruction unit 220 transmits a recording instruction to the server device 300 from the wireless communication unit 210 instructing the server device 300 to record the position coordinates of the surveying instrument 100 according to input from the user. In other words, the recording instruction unit 220 transmits a recording instruction to the server device 300 instructing the server device 300 to record the position coordinates of the surveying instrument 100 calculated in the server device 300.

The display instruction unit 230 transmits a display instruction requesting the display of the position coordinates stored in the surveying instrument 100 from the wireless communication unit 210 to the server device 300 in accordance with input from the user. In other words, the display instruction unit 230 transmits a display instruction requesting display screen information related to the position information of the surveying instrument 100 stored in the server device 300 to the server device 300.

The user who performs input to the recording instruction unit 220 and the display instruction unit 230 may be the worker who carries the surveying instrument 100 to the surveying site, or may be another user who is in a work site different from the surveying site. In other words, a worker who operates the surveying instrument 100 at the surveying site may send a recording instruction or a display instruction from the terminal device 200, or another user in a work site may send a recording instruction or a display instruction from the terminal device 200.

The display unit 240 displays the display screen information received by the wireless communication unit 210. Specifically, the display unit 240 displays a screen showing the current position of the surveying instrument 100 in real time, a screen showing the history of position coordinates measured by the surveying instrument 100, and the like.

Next, the configuration of the server device 300 will be described with reference to FIG. 6. FIG. 6 is a block diagram showing the configuration of the server device 300. The server device 300 shown in FIG. 6 has a communication unit 310, a positioning data acquisition unit 320, a position coordinate calculation unit 330, a recording instruction acquisition unit 340, a storage unit 350, and a display information generation unit 360.

The communication unit 310 connects to a network and transmits and receives signals between the communication terminal 130 of the surveying instrument 100 and the terminal device 200. Specifically, the communication unit 310 receives positioning data including GNSS data and correction data from the communication terminal 130 of the surveying instrument 100. The communication unit 310 also receives recording instructions and display instructions from the terminal device 200 and transmits display screen information to the terminal device 200.

The positioning data acquisition unit 320 acquires the positioning data received from the communication terminal 130 of the surveying instrument 100. In other words, the positioning data acquisition unit 320 acquires the positioning data that includes GNSS data and correction data and is constantly transmitted from the surveying instrument 100.

The position coordinate calculation unit 330 calculates the position coordinates of the surveying instrument 100 based on the positioning data acquired by the positioning data acquisition unit 320. That is, the position coordinate calculation unit 330 calculates the position coordinates of the surveying instrument 100 from the GNSS data and correction data included in the positioning data. The position coordinates calculated here are position coordinates obtained by RTK positioning using correction data, and include an error of, for example, about several centimeters.

The position coordinate calculation unit 330 notifies the display information generation unit 360 of the calculated position coordinates. Furthermore, when instructed by the recording instruction acquisition unit 340, the position coordinate calculation unit 330 stores the positioning information in which the calculated position coordinates are associated with the positioning time, etc., in the storage unit 350.

The recording instruction acquisition unit 340 acquires a recording instruction received from the terminal device 200. That is, the recording instruction acquisition unit 340 acquires a recording instruction from the terminal device 200 that instructs the surveying instrument 100 to record the calculated position coordinates. Then, the recording instruction acquisition unit 340 instructs the position coordinate calculation unit 330 to record the calculated position coordinates.

The memory unit 350 stores various information including the position coordinates of the surveying instrument 100. Specifically, the memory unit 350 stores positioning information 351 that associates the position coordinates of the surveying instrument 100 calculated by the position coordinate calculation unit 330, the identification information of the surveying instrument 100, and the positioning time. The memory unit 350 also stores in advance map information 352 that includes the surveying site where the surveying by the surveying instrument 100 is performed.

The display information generating unit 360 generates display screen information to be displayed on the terminal device 200. Specifically, the display information generating unit 360 generates a selection screen for the terminal device 200 to select the surveying instrument 100 to be operated from among a plurality of surveying instruments that transmit positioning data to the server device 300. The display information generating unit 360 also acquires the position coordinates of the current position of the surveying instrument 100 from the position coordinate calculation unit 330, and generates a surveying screen that displays the position coordinates of the current position of the surveying instrument 100 together with map information 352. Furthermore, when a display instruction is received from the terminal device 200, the display information generating unit 360 acquires the requested positioning history of the surveying instrument 100 from the positioning information 351 in the storage unit 350, and generates a history screen that displays the acquired positioning history together with the map information 352.

When communication with the terminal device 200 is started, the display information generating unit 360 generates the above-mentioned selection screen and transmits it from the communication unit 310 to the terminal device 200. Furthermore, when a surveying instrument 100 is selected by the terminal device 200, the display information generating unit 360 generates a surveying screen related to the selected surveying instrument 100 and transmits it from the communication unit 310 to the terminal device 200. Furthermore, when a display instruction is received from the terminal device 200, the display information generating unit 360 generates a history screen including the positioning history specified by the display instruction and transmits it from the communication unit 310 to the terminal device 200.

Next, the survey support method using the survey support system configured as described above will be described with reference to the flow diagram shown in FIG. 7. In FIG. 7, the operations of the terminal device 200 and the server device 300 are shown in parallel.

Surveying instruments, including the surveying instrument 100, constantly transmit positioning data from their respective surveying sites to the server device 300. The positioning data is received by the communication unit 310 of the server device 300 and acquired by the positioning data acquisition unit 320. Then, based on the positioning data from each surveying instrument, the position coordinate calculation unit 330 calculates the position coordinates of the current position of each surveying instrument (step S101). Thereafter, the calculation of the position coordinates of the current position of the surveying instrument continues while positioning data is being received from the surveying instruments.

On the other hand, when the terminal device 200 makes a login request to the server device 300 (step S102), the login request is transmitted from the terminal device 200 to the server device 300. Then, a predetermined authentication process is executed in the server device 300 (step S103), and if the login by the terminal device 200 is not authenticated (step S103 No), the process ends.

In response to this, when the login by the terminal device 200 is authenticated (step S103 Yes), a selection screen is generated by the display information generation unit 360 (step S104). That is, a selection screen is generated in which the terminal device 200 selects the surveying instrument 100 to be operated from among the surveying instruments that are transmitting positioning data to the server device 300. The generated selection screen is transmitted from the communication unit 310 to the terminal device 200, and the selection screen is displayed on the display unit 240 of the terminal device 200 (step S105).

Figure 8 is a diagram showing an example of a selection screen displayed on the terminal device 200. As shown in Figure 8, the selection screen displays a map image 401, as well as a list 402 of surveying instruments that are transmitting positioning data to the server device 300. A user viewing the selection screen can select the surveying instrument 100 to be operated from the list 402 of surveying instruments.

Returning to FIG. 7, when a selection is received from a user viewing the selection screen regarding the surveying instrument 100 to be operated (step S106), identification information of the selected surveying instrument 100 is transmitted from the terminal device 200 to the server device 300. Then, a surveying screen displaying the position coordinates of the current position of the selected surveying instrument 100 is generated by the display information generating unit 360 of the server device 300 (step S107). That is, a surveying screen is generated that displays the position coordinates of the current position calculated by the position coordinate calculating unit 330 based on the positioning data received by the server device 300 from the surveying instrument 100, together with the map information 352. The generated surveying screen is transmitted from the communication unit 310 to the terminal device 200, and the surveying screen is displayed on the display unit 240 of the terminal device 200 (step S108).

Figure 9 is a diagram showing an example of a surveying screen displayed on the terminal device 200. As shown in Figure 9, a map image 401 is displayed on the surveying screen, and a marker 411 indicating the current position of the surveying instrument 100 is superimposed on the map image 401. The display mode of this marker 411, such as color or shape, may be changed depending on the positioning accuracy. In other words, the positioning accuracy varies depending on the strength of the signal received from the satellite and the number of satellites used for positioning, and information regarding the positioning accuracy is included in the positioning data, so when the surveying screen is generated, a marker 411 with a display mode reflecting the positioning accuracy is placed.

The survey screen also displays an indicator 412 that indicates whether the communication state between the survey instrument 100 and the server device 300 is good or bad. The color or shape of this indicator 412 changes depending on the state of the communication line between the survey instrument 100 and the server device 300, including, for example, a mobile communication line. The indicator 412 may also make it possible to distinguish that multiple terminal devices 200 have selected the same survey instrument 100 as the operation target.

The survey screen also displays position coordinates 413 of the current position of the surveying instrument 100, which corresponds to the marker 411. The position coordinates 413 include position coordinates based on latitude, longitude, and altitude obtained directly from GNSS data, position coordinates in a plane rectangular coordinate system having a specified origin, and position coordinates in a local coordinate system having an origin set by the user.

Then, the surveying screen displays record instruction buttons 414 and 415 for recording the position coordinates 413 of the current position of the surveying instrument 100. The record instruction button 414 is a button for instructing the surveying instrument 100 to record the position coordinates 413 of the current position, and the record instruction button 415 is a button for instructing the surveying instrument 100 to continuously record the position coordinates 413 at set intervals or set distances, respectively.

Returning to FIG. 7, when the record instruction button 414 or the record instruction button 415 is pressed by a user viewing the survey screen (step S109), a record instruction is transmitted from the terminal device 200 to the server device 300. Then, when the record instruction is acquired by the record instruction acquisition unit 340 of the server device 300, positioning information 351 including the position coordinates calculated by the position coordinate calculation unit 330 is stored in the memory unit 350 (step S110). Specifically, when the record instruction button 414 is pressed, the position coordinates of the current position of the surveying instrument 100 are stored as positioning information 351 together with the identification information of the surveying instrument 100 and the positioning time. Furthermore, when the record command button 415 is pressed, the position coordinates of the current position of the surveying instrument 100, the identification information of the surveying instrument 100, and the positioning time are stored as the positioning information 351, and thereafter, the position coordinates of the surveying instrument 100, the identification information of the surveying instrument 100, and the positioning time are successively stored as the positioning information 351 for each set time or distance.

In this way, the server device 300 calculates the position coordinates of the surveying instrument 100 from the positioning data constantly transmitted from the surveying instrument 100 to the server device 300, and records the position coordinates of the surveying instrument 100 in response to a recording instruction from the terminal device 200. Therefore, the position coordinates of the surveying instrument 100 are recorded in real time in the server device 300, and, for example, the history of the position coordinates can be immediately used from the terminal device 200. In addition, the terminal device 200 can instruct the recording of the position coordinates of the surveying instrument 100, and, for example, a user in a location other than the surveying site can use the terminal device 200 to assist in the surveying work.

When a user checks the history of the position coordinates of the surveying instrument 100, a display request to display the history is received at the terminal device 200 (step S111), and a display instruction is sent from the terminal device 200 to the server device 300. Then, when the display instruction is acquired by the display information generating unit 360 of the server device 300, the positioning information 351 and the map information 352 are acquired from the storage unit 350, and a history screen that displays the history of the position coordinates is generated (step S112). That is, according to the identification information of the surveying instrument 100 included in the display instruction and the specification of the period of positioning, the position coordinates and the positioning time are extracted from the positioning information 351, and a history screen that displays the extracted position coordinates and the positioning time together with the map information 352 is generated. The generated history screen is transmitted from the communication unit 310 to the terminal device 200, and the history screen is displayed on the display unit 240 of the terminal device 200 (step S113).

Figure 10 is a diagram showing an example of a history screen displayed on the terminal device 200. As shown in Figure 10, the history screen displays a map image 401, and markers 421 corresponding to the history of position coordinates are superimposed on the map image 401. The display manner, such as color or shape, of these markers 421 may be changed depending on the positioning accuracy. That is, since the positioning information 351 stores the accuracy at the time of positioning together with the position coordinates, when the history screen is generated, markers 421 with a display manner corresponding to the accuracy of each position coordinate are arranged.

The history screen also displays history 422 of the position coordinates corresponding to the marker 421. The history 422 includes identification information of the surveying instrument 100, the positioning time, and the position coordinates. Each piece of information included in the history 422 may be displayed in a display manner, such as a color that reflects the accuracy at the time of positioning, similar to the corresponding marker 421.

As described above, according to this embodiment, the surveying instrument that receives GNSS signals constantly transmits positioning data to the server device, and the server device calculates the position coordinates of the surveying instrument from the positioning data and records the position coordinates according to instructions from the terminal device. Therefore, by connecting the terminal device to the server device via a network, the history of position coordinates can be viewed instantly. In other words, data obtained by surveying using GNSS can be used in real time.

In the above embodiment, the communication terminal 130 and the terminal device 200 of the surveying instrument 100 are provided separately, but the communication terminal 130 and the terminal device 200 can also be integrated. In this case, the terminal device in which the communication terminal 130 and the terminal device 200 are integrated may be attached to the surveying instrument 100, or may be carried by an operator who carries the surveying instrument 100 to the surveying site.

In addition, in the above embodiment, RTK positioning is performed as a survey using GNSS, but the positioning method is not limited to RTK positioning. That is, for example, the surveying instrument 100 may perform independent positioning, and the positioning data that does not include correction data may be transmitted to the server device 300.

REFERENCE SIGNS LIST 100 Survey instrument 110 GNSS receiving antenna 120 Receiver 130 Communication terminal 140 Battery 150 Level 160 Pole 200 Terminal device 210 Wireless communication unit 220 Recording instruction unit 230 Display instruction unit 240 Display unit 300 Server device 310 Communication unit 320 Positioning data acquisition unit 330 Position coordinate calculation unit 340 Recording instruction acquisition unit 350 Storage unit 360 Display information generation unit

Claims (9)

A survey support system having a surveying device that receives signals from a satellite, a terminal device that is connected to a network, and a server device that can communicate with the surveying device and the terminal device,
The terminal device
a transmission unit for transmitting a recording instruction for instructing recording of the position coordinates of the surveying instrument;
The server device includes:
a calculation unit that calculates position coordinates of the surveying instrument based on satellite data obtained from a satellite in the surveying instrument;
an acquisition unit that acquires a recording instruction transmitted from the terminal device;
a storage unit configured to store the position coordinates calculated by the calculation unit when a recording instruction is acquired by the acquisition unit. The transmission unit is
Transmitting a recording instruction to instruct recording of position coordinates at set intervals or set distances;
The storage unit is
The survey support system according to claim 1 , wherein the position coordinates calculated by the calculation unit are stored continuously for each of the set times or each of the set distances. The calculation unit is
2. The survey support system according to claim 1, wherein the position coordinates of the surveying instrument are calculated based on the satellite data and correction data obtained at a predetermined reference station. The server device includes:
A generating unit generates display screen information for displaying the position coordinates stored in the storage unit,
The terminal device
The survey support system according to claim 1 , further comprising a display unit that displays the display screen information generated by the generation unit. The generation unit is
The survey support system according to claim 4, further comprising: generating display screen information for displaying the position coordinates in a display mode according to the accuracy of the position coordinates. The generation unit is
The survey support system according to claim 4, wherein display screen information is generated in which a marker having a display form corresponding to the accuracy of the position coordinates is superimposed on a map image. The generation unit is
The survey support system according to claim 4 , further comprising: generating display screen information for displaying an indicator showing whether a communication state between said surveying instrument and said server device is good or bad. The surveying device is
A rod-shaped pole,
a receiver attached to the tip of the pole for receiving a signal from a satellite;
The survey support system according to claim 1 , further comprising: a communication terminal that acquires satellite data contained in the signal received by the receiver and transmits the satellite data to the server device. A survey support method in a survey support system having a surveying instrument that receives signals from a satellite, a terminal device that is connected to a network, and a server device that can communicate with the surveying instrument and the terminal device, comprising:
the server device calculates position coordinates of the surveying instrument based on satellite data obtained from a satellite by the surveying instrument;
The terminal device transmits a recording instruction for instructing recording of the position coordinates of the surveying device;
the server device receives a recording instruction transmitted from the terminal device;
the server device stores the calculated position coordinates in a storage unit when the recording instruction is acquired.

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