Surveying system, surveying method, and surveying program

Abstract

To provide a surveying system, a surveying method, and a surveying program that can be utilized also in an area in which communication of a portable telephone or the like cannot be received and can ensure precision of a survey by repeatedly performing a survey and comparing survey data.SOLUTION: A survey system includes: a reception section for receiving signals of a position and a time of a positioning satellite and a time signal, and a surveying section for surveying land. The surveying section includes: a reception section for receiving input of information on land of a survey site from a user and displaying the information on the land of the survey site; a storage section for storing predetermined information inputted by the user; a position calculation section for calculating position information of the surveying section installed in the land in the survey site on the basis of signals of the position and the time of the positioning satellite received by the reception section; and a calculation section for acquiring multiple pieces of position information of the surveying section for the surveying section to calculate a measurement difference of the pieces of position information as a difference within a set, and calculating the measurement difference of the position information of each set as a difference between sets.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a surveying system, a surveying method, and a surveying program, and more particularly to a surveying system, method, and program for use in cadastral surveys that can be used even in areas where communications such as mobile phones cannot be received. [Background technology]

[0002] Cadastral surveys based on the National Land Survey Act have been conducted for some time, but the progress rate as of the end of fiscal year 2021 was only 52%. In particular, the progress rates in forested areas and densely populated areas were poor, at 46% and 26%, respectively. The current cadastral survey method involves the steps of (1) establishing cadastral map root triangulation points, which serve as the reference points for the plot land survey (boundary survey), using the static method with GNSS, (2) establishing cadastral map root polygonal points or detailed cadastral map root points using the TS method (method using a total station), and (3) conducting a plot land survey based on these to determine the coordinates of the plot boundary points (boundary points), making it a project that requires a large number of workers and a long work time.

[0003] The Cadastral Development Division of the Ministry of Land, Infrastructure, Transport and Tourism's Real Estate and Construction Economics Bureau (hereinafter referred to as the Cadastral Development Division), which has jurisdiction over cadastral surveys, has adopted a single-point observation method using the GNSS method, which allows for single-plot land surveying without the need to set up detailed ground points (above (2)), as one of the efficient cadastral surveying methods since fiscal 2010 in order to promote cadastral survey work. However, there are issues such as the fact that it cannot be used in areas where communications such as mobile phones cannot be received, and that the locations where it can be used are limited.

[0004] In order to reduce the work time at a surveying site, a technique has been proposed that simplifies the method of collecting information at the surveying site and provides an automated surveying drawing creation system (see Patent Document 1, etc.).

[0005] Patent document 1 describes a system for creating survey drawings such as land parcel maps, which performs boundary line surveying at a surveying site using a measuring instrument in which map information has been stored in advance, and includes the steps of loading map information into the measuring instrument, adding coordinate data to the loaded map information, storing the coordinate data and map information, displaying the stored map information on the screen of the measuring instrument, determining the destination to be surveyed on site as a closed figure on the screen of the measuring instrument, storing identification information related to the closed figure, marking the positions of boundary posts erected on the boundary line of the destination to be surveyed on site on the map information displayed on the measuring instrument, inputting information about the marked boundary posts into the measuring instrument, and generating connections using the markings on the boundary posts. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2002-257544 A Summary of the Invention [Problem to be solved by the invention]

[0007] However, the technology of Patent Document 1 has the disadvantage that it cannot be used in areas where communications such as mobile phone reception is not possible. In addition, the technology of Patent Document 1 simplifies and automates the work from the viewpoint of shortening the work time, and since the surveying is not repeated, the accuracy of the surveying cannot be guaranteed.

[0008] The present invention has been made in consideration of the above-mentioned points, and provides a land surveying system, a land surveying method, and a land surveying program that can be used even in areas where communications such as mobile phones cannot be received, and that can ensure the accuracy of the surveying by repeatedly conducting surveys and comparing the surveying data. [Means for solving the problem]

[0009] That is, the surveying system of the embodiment is a surveying system at a surveying site, The system comprises a receiving unit that receives position and time signals from a positioning satellite, and a surveying unit that surveys land. The surveying unit comprises a receiving unit that receives input of information about the land at the surveying site from a user and displays the information about the land at the surveying site, a memory unit that stores predetermined information input by the user, a position calculation unit that calculates position information of the surveying unit installed on the land at the surveying site based on the position and time signals of the positioning satellite received by the receiving unit, and a calculation unit that acquires multiple pieces of position information of the surveying unit for each surveying calculation unit, calculates the measurement difference of the position information as an intra-set difference, and calculates the measurement difference of the position information of each set as an inter-set difference.

[0010] Furthermore, in the surveying system, the surveying unit may calculate a first inter-set difference as a first measurement difference between each set of position information calculated by acquiring multiple pieces of position information of the surveying unit at known surveyed points on land at the surveying site per said surveying calculation unit, and calculate a second inter-set difference as a second measurement difference between each set of position information calculated by acquiring multiple pieces of position information of the surveying unit per said surveying unit.

[0011] Furthermore, in the surveying system, the reception unit may further include an addition unit that acquires map information of the land of the surveying site and adds coordinate values ​​to the read map information.

[0012] Furthermore, in the surveying system, the output unit may output the surveying data in CSV format. Effect of the Invention

[0013] The surveying system of the present invention comprises a receiving unit that receives position and time signals from a positioning satellite, and a surveying unit that surveys land. The surveying unit comprises a reception unit that accepts input of information about the land at the surveying site from a user and displays the information about the land at the surveying site, a memory unit that stores the specified information input by the user, a position calculation unit that calculates position information of the surveying unit installed on the land at the surveying site based on the position and time signals of the positioning satellite received by the receiving unit, and a calculation unit that obtains multiple pieces of position information of the surveying unit for each surveying unit, calculates the measurement difference in the position information as an intra-set difference, and calculates the measurement difference in the position information of each set as an inter-set difference. Therefore, the surveying system can be used even in areas where communications such as mobile phones cannot be received, and it is possible to ensure the accuracy of the surveying by repeatedly conducting surveys and comparing the surveying data.

[0014] Furthermore, the surveying method and surveying program, like surveying equipment, can be used in areas where communications such as mobile phones cannot be received, and the accuracy of the surveying can be guaranteed by repeating surveys and comparing the survey data. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a schematic diagram showing a configuration of a surveying system according to an embodiment. [Diagram 2] FIG. 2 is a block diagram showing the functional parts of the surveying system. [Diagram 3] 13 is a display example showing a start screen of a surveying system application. [Figure 4] 1 is an example display showing a New / Edit Project screen of a surveying system application. [Diagram 5] 13 is a display example showing an observation initial setting screen of a surveying system application. [Figure 6] 13 is a display example showing a screen displaying a list of existing projects of a surveying system application. [Figure 7] 13 is a display example showing an existing registered location list display screen of a surveying system application. [Figure 8]13 is a display example showing a screen for adding / editing a new location in a surveying system application. [Figure 9] 13 is a display example showing a detailed display screen of an application of a surveying system. [Figure 10] 13 is a display example showing a map display of registered points in a surveying system application. [Figure 11] 13 is a display example showing an observation screen when a celestial chart is displayed in a surveying system application. [Figure 12] 13 is an example of the quality control screen when observing three sets of a surveying system application. [Figure 13] 13 is a display example showing a detailed display screen of the inter-set difference for each set of the application of the surveying system. [Figure 14] 13 is a display example showing common settings for applications of a surveying system. [Figure 15] 11 is a flowchart illustrating a surveying method. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] The surveying system, surveying method, and surveying program of the embodiment are a surveying system, method, and program that can survey land with high accuracy, reduce the number of workers, shorten work time, and can be used in areas where communications such as mobile phones cannot be received.

[0017] Conventional surveying systems have the disadvantage that they cannot be used in areas where there is no reception of mobile phone signals, etc. Also, when work is simplified and automated to reduce work time, the surveying is not repeated, so the accuracy of the surveying cannot be guaranteed.

[0018] Therefore, the surveying system, etc. (system, method, program) of the embodiment can be used even in areas where communications such as mobile phone signals cannot be received, and is positioned as a technology that makes it possible to ensure the accuracy of surveying by conducting repeated surveys and comparing survey data.

[0019] The configuration of a surveying system 1 according to an embodiment is shown as a schematic diagram in FIG. 1. The surveying system 1 includes a receiving unit 10 for receiving position and time signals from a positioning satellite, a surveying unit 20 for surveying land, a display unit 30 for displaying various information on the monitor of the surveying unit 20, and an output unit 40 for outputting surveying data. The surveying unit 20 is configured by a computer (processing unit) in terms of hardware, and is equipped with arithmetic elements such as a CPU and a GPU, and storage elements such as a ROM, a RAM, a HDD, and an SSD. The surveying unit 20 may be a personal computer (PC), a mainframe, a workstation, a cloud computing system, or even a tablet terminal or a smartphone, or other various electronic computers (computing resources). In the embodiment, a tablet terminal (computer) is used for the surveying unit 20, and the display unit 30 and the output unit 40 are implemented in the tablet terminal. The surveying method is realized by software, such as a surveying program loaded into a main memory. The survey system 1 is operated by an application (execution of software), and a survey program corresponds to this application.

[0020] 1, the surveying system 1 is configured such that the receiver 10 is connected to the top end of the antenna pole 2 and receives position and time signals from a positioning satellite. The surveying unit 20 is connected to the receiver 10 by wire or wirelessly. The output unit 40 is configured to output the surveying data measured by the surveying unit 20 in CSV format. A surveying engineer who is a user may install the surveying unit 20 on his / her own terminal device and access the application of the surveying system 1 from the receiver 10 via an internet line, or may access the application of the surveying system 1 without going through an internet line.

[0021] The computer of the surveying system 1 may be configured as a surveying system 1S by connecting to an internet line, or may be configured as a surveying system 1S without connecting to an internet line. Since the computer in the surveying system 1S and the computer in the surveying unit 20 have a common configuration, they will be described below as the surveying unit 20. The computer in the surveying unit 20 may be provided as equipment associated with a surveying engineer, or may be provided by an independent business entity separate from the surveying engineer.

[0022] When each functional unit of the surveying system 1 in Fig. 1 is realized by software, the computer of the surveying system 1 executes instructions of a program, which is software that realizes each function. The recording medium that stores this program can be a "non-transient tangible medium," such as a CD, DVD, semiconductor memory, or programmable logic circuit. In addition, this program may be supplied to the computer of the surveying system 1 via any transmission medium (communication network, broadcast wave, etc.) that can transmit the program.

[0023] FIG. 2 is a block diagram showing the functional parts of the surveying system 1. The surveying system 1 is equipped with a receiving unit 10, a surveying unit 20, and a display unit 30. The surveying unit 20 is equipped with a receiving unit 21, a memory unit 22, a position calculation unit 23, and a calculation unit 24. It is also equipped with an output unit 40 that corresponds to the processing of FIG. 15 described below. The memory unit 22 uses storage elements such as ROM, RAM, HDD, SSD, etc. The display unit 30 is a known display, monitor, etc. Furthermore, the computer of the surveying system 1 is equipped with processing elements such as a CPU, GPU, etc.

[0024] The receiving unit 10 is configured to receive position and time signals from positioning satellites. The receiving unit 10 is a USB interface and is bus-powered. Bus power is a method of supplying power from a USB port (bus) of a personal computer.

[0025] The surveying unit 20 is connected to the receiving unit 10 by wire or wirelessly, and is configured to survey land. A tablet terminal is preferably used, and the OS that is preferably used is, for example, Windows, Android, or iOS.

[0026] The surveying unit 20 includes a receiving unit 21, a storage unit 22, a position calculation unit 23, and a calculation unit 24. The surveying unit 20 corresponds to the CPU of the tablet terminal shown in FIG.

[0027] The reception unit 21 receives input of information on the land of the surveying site from the user and displays the information on the land of the surveying site. The reception unit further includes an addition unit that acquires map information on the land of the surveying site and adds coordinate values ​​to the read map information.

[0028] The storage unit 22 stores information on the land of the survey site input by the user. Examples of the land information include the address, the owner, and the registration details.

[0029] Based on the position and time signals of the positioning satellites received by the receiving unit 10, the position calculation unit 23 calculates the position information of the survey unit 20 installed on land in the surveying site.

[0030] The calculation unit 24 obtains multiple pieces of position information from the surveying unit 20 per surveying unit 20 and calculates the measurement difference of the position information as the difference between sets. For example, there is a method called GNSS surveying, and the main methods used are RTK-GNSS positioning, VRS method (network-type RTK-GNSS positioning), and static method. RTK-GNSS positioning (real-time kinematic GNSS). RTK-GNSS positioning is a surveying method in which four or more of the same GNSS satellites are simultaneously observed using two GNSS surveying instruments: a base station installed at a fixed position and a mobile station where a survey worker moves to an observation point with an antenna. By transmitting the observation data of the base station to the mobile station and analyzing the difference between the observation values ​​of the two points, it is possible to eliminate satellite position errors and delay errors when radio waves pass through the atmosphere, thereby improving the observation accuracy. The VRS method (network-type RTK-GNSS positioning) is a method that allows surveying with one GNSS surveying instrument at a mobile station without using a base station.

[0031] The display unit 30 displays the application screens shown in Fig. 3 to Fig. 14. The display unit 30 corresponds to the monitor of the tablet terminal shown in Fig. 1.

[0032] The calculation unit 24 acquires position information of the surveying unit 20 at known surveyed points on land at the surveying site multiple times per surveying unit 20, and calculates the measurement difference of the position information as the intra-set difference. For example, the calculation unit 24 acquires position information of the surveying unit 20 at known surveyed points on land at the surveying site for five epochs per surveying unit 20 (one epoch is the period (number of acquisitions) of measurement data per observation), and calculates the measurement difference between the epochs as the intra-set difference.

[0033] The calculation unit 24 acquires position information of the surveying unit 20 at known survey points on land at the surveying site for each of the surveying units 20, and calculates the measurement difference between each set of position information as the inter-set difference.

[0034] The calculation unit 24 calculates the measurement difference of each set of position information at the known detailed map root point as a first inter-set difference, and calculates the measurement difference of each set of position information at the boundary point as a second inter-set difference. Specifically, the calculation unit 24 calculates the intra-set averages of the coordinate values ​​and accuracy degradation rates of sets 1, 2, 3, ... n at point 1, and calculates the difference (XYH). Next, the calculation unit 24 calculates the inter-set averages of the coordinate values ​​and accuracy degradation rates of the inter-set data, and calculates the difference (XYH).The calculation results are displayed in the form of project name (the project name you set), location name (the location name you set), set No. (a blank is output for data between sets), receiver number, antenna number (the antenna number you set), observation start date and time (the date and time when observation started (e.g., 2023 / 01 / 23 19:00:23.5)), observation end date and time (the date and time when observation ended (e.g., 2023 / 01 / 23 19:00:23.5), data acquisition interval - seconds (number of seconds between data acquisitions [seconds]), data acquisition interval - number of epochs (number of epochs between data acquisitions), observation time (observation time for data [seconds]), reinitialization (whether or not to reinitialize the receiver between sets (true: yes, false: no)), system number (system number of the Cartesian coordinate system (blank if the display coordinate system is set to latitude and longitude in the observation initial settings)), latitude (plane rectangular coordinate X, latitude [deg] or plane rectangular coordinate X [m]), longitude (plane rectangular coordinate Y, longitude [deg] or plane rectangular coordinate Y [m]), elevation (ellipsoid height, [m]), geoid name (name of geoid model file (basically pristine data from the Geospatial Information Authority of Japan)), geoid height ([m]), instrument height measurement method (measurement method for instrument height (vertical distance or diagonal distance) )), instrument height reference point (reference point for instrument height (bottom or phase center)), instrument height (set instrument height [m]), difference X (for inter-set data, this will be the inter-set difference), difference Y (for inter-set data, this will be the inter-set difference), difference H (for inter-set data, this will be the inter-set difference), PDOP (position dilution of precision), HDOP (horizontal dilution of precision), VDOP (vertical dilution of precision), observation solution (data adoption conditions (observation solution) set on the observation initial settings screen), whether or not CLAS correction was performed, GPS quantity (average GPS quantity), SBAS quantity (average SBAS quantity), QZSS quantity (average QZSS quantity), Galileo quantity (average Galileo quantity), and GLONASS quantity (average GLONASS quantity) are output in CSV format.

[0035] The survey unit 20 starts the on-site survey by restarting the receiving unit 10 (1). Next, if the automatic reinitialization option of the receiver is enabled, reinitialization is performed (2). Next, data is received until a specified time (observation time) has elapsed (3). Next, the acquired data is saved as one set (4). Next, (2) to (4) are repeatedly performed up to the specified number of sets. Next, a difference judgment is performed within the set and between the sets, and if the limit value is not exceeded, the data is saved, and if it is exceeded, a remeasurement of the specific set is performed. For the difference judgment, the difference (difference between the minimum and maximum values) within the set and between the sets is calculated at the time of observation, and it is judged whether the limit value is satisfied. For the difference within the set, the difference in X, Y, and H between epochs is calculated and compared with the limit value. For the difference between the sets, the average values ​​of X, Y, S, and H of each set are calculated, and then the difference is calculated with the average value of each set and compared with the limit value. Regarding data acquisition for each epoch, if the data does not meet the conditions during observation (e.g. Float is received when only FIX is set), the data is discarded and the system waits to receive the next data. When the observation is completed, the data saved as the observation result data (XY) for the observation point is the sum of the average values ​​within the set divided by the number of sets (average value between sets). It is calculated as follows: Cd = (DA1 + DA2 + … +DAn) / nd (Cd: adopted data, DAn: average value in set n, nd: number of sets)

[0036] The calculation unit 24 surveys a first set of land parcels at known detailed root points, surveys a second set of land parcels after reinitializing the receiving unit 10, and calculates the inter-set difference between the first and second sets. For example, the position information of the surveying unit 20 is acquired at known detailed root points of the land at the surveying site for five epochs per surveying unit 20 (one epoch is the period (acquisition number) of measurement data per observation) to form one set, and the measurement difference of each set is calculated as the first inter-set difference. Similarly, the position information of the surveying unit 20 is acquired at the land parcel boundary points at the surveying site for another five epochs per surveying unit 20 to form one set, and the measurement difference of each set is calculated as the second inter-set difference. The detailed root points are points that have been surveyed in advance to maintain accuracy. The parcel boundary points are vertices that intersect when the parcel boundaries are connected. The period and acquisition number of measurement data generally refer to one epoch of one signal simultaneously received from each satellite. Typically, RTK surveying has a cycle of 1 second, and uses the average value of 10 data points obtained over 10 seconds by continuously acquiring data every second.

[0037] The calculation unit 24 surveys a first set of land parcels at known detailed root points and boundary points, and after reinitializing the receiving unit 10, surveys a second set of land parcels and calculates the difference between the first and second sets. By the calculation unit 24 conducting surveys at these known detailed root points and boundary points and calculating the difference between the sets, the accuracy of the data is improved and more accurate surveying results can be obtained.

[0038] 3 is a display example showing a start screen 100 of a surveying system application. This is the screen when the application is started, and transitions to a new project creation, project list, and application setting screen can be made. Pressing the buttons for new project creation 101, project list 102, and application setting 103 respectively transitions to the new project creation, project list, and application setting screens.

[0039] 4 is a display example showing a new / edit project screen 200 of a surveying system application. Enter the site name 201, display coordinate system 202, plane rectangular coordinate-coordinate system 203, plane rectangular coordinate-system number 204, instrument height-measurement method 205, instrument height-reference point 206 and remarks 207, and press the decision button 208. Pressing the decision button 208 applies and saves the settings. To cancel the input contents, press the cancel button 209 and return to the previous screen.

[0040] FIG. 5 is a display example showing an observation initial setting screen 300 of a surveying system application. In the acquisition interval 301, the acquisition interval can be input in units of ○ seconds and ○ epochs. In the observation time 302, the total time to be observed can be input. In the number of sets 303, the number of sets of observation can be input (1 to 5 sets). In the set difference limit 304, it is possible to input whether to set a limit value for the difference between sets. In the set difference limit - limit value 305, it is possible to input a limit value (XY, altitude) for the difference between sets. In the satellite system - CLAS use 306, it is possible to input whether to use CLAS correction. In the satellite system - minimum elevation angle (15°) limit 307, it is possible to input whether to limit the minimum elevation angle of the satellite to be used. When ON, it limits the minimum elevation angle to 15° (※1...Select 15° when CLAS correction is used, and do not use when CLAS correction is not used). In the data adoption conditions 308, the conditions for adopting data can be selected. (1) In the case of CLAS correction, only FIX is adopted (if FLOAT or the like occurs during observation in FIX mode, observation is automatically re-observed after interrupting), FIX FLOAT is adopted, DGNSS is adopted, and all are adopted (including Single). (2) In the case of no CLAS correction, only DGNSS is adopted, and all are adopted (including Single). In the satellite system to be used 309, the satellite system to be used for positioning can be selected. If CLAS correction is present, GPS, QZSS, Galileo, and Glonass can be selected, and if no correction is present, GPS, QZSS, Galileo, Glonass, Beidou, and SBAS can be used. In the satellite number limit 310, whether or not to limit by the number of satellites can be input. In the satellite number limit-limit value 311, the limit value for the number of satellites can be input. Pressing the Set Current Value to Default button 312 sets the currently entered value to the default, pressing the Save button 313 applies and saves the entered value, and pressing the Cancel button 314 cancels and returns to the previous screen.

[0041] FIG. 6 is an example of a display screen 400 showing a list of existing projects in a surveying system application. Pressing the Edit button 401 allows the user to edit the information of the selected project. Pressing the Delete button 402 allows the user to delete the selected project. Pressing the Bulk Export button 403 displays a file dialog box, and the observation results of all projects are output in CSV format. Pressing the Select Export button 404 displays a file dialog box, and the observation results of the selected project are output in CSV format. Pressing the Confirm button 405 selects a project and transitions to a list of locations. Pressing the Back button 406 returns the user to the previous screen.

[0042] FIG. 7 is an example of a display screen 500 showing a list of existing registered locations in a surveying system application. Pressing the Edit button 501 allows the user to edit the selected location information. Pressing the Delete button 502 allows the user to delete the selected location. Pressing the Add New button 503 displays a new location registration dialog. Pressing the Import button 504 allows the user to perform a bulk import using CSV. Pressing the Show Details button 505 displays detailed data for the selected location. Pressing the Show Map button 506 allows the user to check the list of registered locations on a map. Pressing the Start Observation button 507 transitions to an observation screen where the user can start observation. Pressing the Back button 508 returns the user to the previous screen.

[0043] FIG. 8 is a display example showing a new location addition / edit screen 600 of a surveying system application. Entering a location name 601 allows you to enter the location name. Pressing the automatic naming button 602 allows you to name the location in the format of [site name]-[No]. Entering a receiver number 603 allows you to enter the receiver serial number, etc. Entering an antenna number 604 allows you to enter the antenna serial number, etc. Entering an instrument height 605 allows you to enter the instrument height (antenna height). Entering an automatic reinitialization 606 allows you to enter whether to automatically restart the receiver and start observation every time one set of the receiver is completed. Entering a navigation destination 607 allows you to enter whether to specify a navigation destination. Pressing a navigation setting button 608 applies the XY / latitude and longitude of a location where a pin has been placed on the map in advance to the navigation destination. Pressing a register as default button 609 registers it as the default for this project only. Pressing a return to default button 610 returns the current input value to the default. Pressing the cancel button 611 returns to the previous screen.

[0044] 9 is a display example 700 showing a detailed display screen of a surveying system application. The site name 701 displays the site name. The location name 702 displays the registered name of the location. The last observation date 703 displays the date and time of the last observation. The observation data history 704 displays a list of the observation data history.

[0045] 10 is a display example showing a map display 800 of registered points in a surveying system application. The site name is displayed in the site name 801, and the registered name of the point is displayed in the point name 802. Pressing the observation start button 803 transitions to the observation screen of the selected point. Pressing the back button 804 returns to the previous screen.

[0046] FIG. 11 is an example of the observation screen 900 when the celestial sphere map of the surveying system application is displayed. The location name 901 displays the location name. The receiver number 902 displays the serial number of the receiver, etc. The antenna number 903 displays the serial number of the antenna, etc. By inputting the instrument height 904, the instrument height (antenna height) can be changed. By inputting the number of sets 905, the number of sets set on the observation initial setting screen can be changed. By inputting the acquisition interval 906, the acquisition interval can be input in units of x seconds x epochs (for example, 1 second, 2 epochs = 500 msec intervals). By inputting the observation time 907, the total observation time can be input. By inputting the automatic reinitialization 908, it is possible to input whether or not to automatically restart the receiver and start observation after each set is completed. If it is OFF, the next observation can be started at any timing. The positioning accuracy 909 displays the positioning quality. The X coordinate or latitude is displayed on the X coordinate (latitude) 910 (if the coordinate system is set to planar rectangular coordinates on the observation initial setting screen, the X coordinate is displayed). Y coordinate (longitude) 911 displays the Y coordinate or longitude (if the coordinate system is set to planar rectangular coordinates on the observation initial setting screen, the Y coordinate is displayed). Altitude 912 displays the current altitude. Number of satellites 913 displays the current number of satellites. PDOP / HDOP / VDOP 914 displays the positional accuracy degradation rate, horizontal accuracy degradation rate, and vertical accuracy degradation rate, respectively. Standard deviation (latitude / longitude) 915 displays the standard deviation of latitude and longitude for the most recent 10 epochs. If the display coordinate system is planar rectangular coordinates, the XY coordinates are displayed. Progress rate 916 displays the current progress rate for the set number. Pressing the Start Observation button 917 starts observation based on the input values, and the input is deactivated. After observation has started, the button changes to an interrupt button. Pressing the Cancel button 918 cancels observation and returns to the previous screen. After observation has started, the button changes to an interrupt button. Pressing the Celestial Map button 919 changes the display area to a celestial map showing the positions of the satellites being used. Pressing the map button 920 changes the display area to a map showing the current position. Pressing the observation history button 921 changes the display area to show the history of observation data for each set.

[0047] FIG. 12 is an example of a display showing an accuracy control screen 1000 when three sets are observed in a surveying system application. The location name 1001 displays the location name. The instrument height 1002 displays the instrument height (antenna height). The number of sets 1003 displays the number of sets. The acquisition interval 1004 displays the acquisition interval in seconds and epochs. The observation time 1005 displays the total observation time. The automatic reinitialization 1006 displays whether the receiver is automatically restarted after each set is completed. The coordinate value 1007 displays the average coordinate value for each observed set and the average coordinate value between sets. The observation time 1008 displays the total observation time. The average inter-set difference 1009 (the inter-set difference is calculated between sets using the minimum and maximum values ​​of each set data) displays the average inter-set difference (X, Y, S, altitude H). Pressing the details button 1010 allows viewing detailed data on the inter-set difference. Judgment result 1011 displays the result of whether the difference within a set or between sets exceeds the limit value. If NG, the remeasurement button can be pressed to observe again. Intra-set difference 1012 displays the difference within each set of data. Pressing save button 1013 saves the average value of the observation results. Pressing remeasure (the remeasurement function is selective, and the selected set is reobserved. Therefore, the observation results of sets that were not selected are retained) button 1014 allows the selected set to be observed again (input information is carried over). Multiple selections are possible. Pressing cancel button 1015 discards all data and cancels.

[0048] 13 is a display example showing a detailed display screen 1100 of the inter-set difference for each set of a surveying system application. The name of the location is displayed in the location name 1001, the instrument height (antenna height) is displayed in the instrument height 1002, the number of sets is displayed in 1003, and the acquisition interval 1004 displays the acquisition interval in units of ○ seconds ○ epochs. Inter-set difference details 1101 displays the difference between sets for each set. If the threshold is exceeded, it is displayed in red, and if it is near the threshold, it is displayed in orange.

[0049] Fig. 14 is a display example showing common settings 1200 for surveying system applications. In the serial COM port 1201 input, a virtual COM port for serial communication is selected. Pressing the automatic connection button 1202 enables automatic continuation, and when automatic continuation is enabled, the application is automatically connected when launched. In the navigation-position error tolerance 1203 input, the range for determining whether the navigation destination has been reached is set. In the map-pin type 1204 input, the type of pin to be displayed on the map is set.

[0050] The surveying method and surveying program of the embodiment will now be described with reference to the flow chart of Figure 15. The surveying method of the embodiment is executed by the computer (surveying unit 20) of the surveying system 1 of the embodiment based on the surveying program (see Figures 1 and 2). The surveying program of the embodiment causes the computer of the surveying system 1 to realize a reception function, a storage function, a position calculation function, and a calculation function. Each function overlaps with the description of the surveying system 1 of the embodiment described above, so details will be omitted.

[0051] The flow chart of Fig. 15 shows the flow of an information processing method according to one embodiment, and includes various steps of a receiving step (S1), a storing step (S2), a position calculation step (S3), and a calculating step (S4). In addition, the surveying method also includes various other steps not shown in the drawings as necessary.

[0052] The reception function receives input of land information of the survey site from the user and displays the land information of the survey site (S1; reception step). The storage function stores the predetermined information input by the user (S2; storage step).

[0053] The position calculation function calculates position information of the survey calculation unit installed on land at the surveying site based on the position and time signals of the positioning satellite received by the receiving unit (S3; position calculation step).

[0054] The calculation function acquires the position information of the surveying calculation unit multiple times for each surveying calculation unit, calculates the measurement difference of the position information as an intra-set difference, and calculates the measurement difference of the position information of each set as an inter-set difference (S4; calculation step).

[0055] The information processing program of the embodiment can be implemented using, for example, scripting languages ​​such as ActionScript, JavaScript (registered trademark), Python, and Ruby, and compiler languages ​​such as C, C++, C#, Objective-C, Swift, and Java (registered trademark). [Explanation of symbols]

[0056] 1. Surveying System 2 Antenna pole 10 Receiving section 20 Survey Department 21 Reception 22 Memory section 23 Position calculation section 24 Calculation section 30 Display section 40 Output section

Claims

1. A land survey system at a survey site, comprising: A receiving unit for receiving position and time signals of a positioning satellite; A surveying unit that surveys the land, The surveying unit includes: a reception unit that receives input of information on the land of the surveying site from a user and displays the information on the land of the surveying site; A storage unit that stores the information input by the user; a position calculation unit that calculates position information of the survey unit installed on land at the surveying site based on the position and time signals of the positioning satellite received by the receiving unit; a calculation unit that acquires the position information of the surveying unit multiple times per surveying unit, calculates the measurement difference of the position information as a difference within a set, and calculates the measurement difference of the position information of each set as a difference between sets.

2. The surveying system according to claim 1, characterized in that the surveying unit acquires the position information of the surveying unit multiple times at known surveyed points on land at the surveying site, and calculates a first measurement difference of the position information of each set as a first inter-set difference, and acquires the position information of the surveying unit multiple times at known surveyed points on land at the surveying site, and calculates a second measurement difference of the position information as a second inter-set difference.

3. The reception unit acquires map information of the land of the survey site, an adding unit that adds coordinate values ​​to the read map information; The surveying system according to claim 1, further comprising:

4. 2. The surveying system according to claim 1, wherein the output unit outputs the surveying data in a CSV format.

5. A method for surveying land at a survey site in a surveying system including a receiving unit for receiving position and time signals from a positioning satellite and a surveying unit for surveying land, comprising: The surveying department, A receiving step of receiving input of land information of a survey site from a user; a storage step of storing the land information of the survey site input by the user; A surveying step of conducting a land survey; a position calculation step of calculating position information of the surveying unit installed on land at the surveying site based on the position and time signals of the positioning satellite received by the receiving unit; a calculation step of acquiring the position information of the surveying unit a plurality of times for each surveying unit, calculating a measurement difference of the position information as an intra-set difference, and calculating a measurement difference of the position information of each set as an inter-set difference; Execute A surveying method comprising:

6. A surveying program for a land at a surveying site in a surveying system having a receiving unit for receiving position and time signals of a positioning satellite and a surveying unit for surveying a land parcel, comprising: The computer A reception function for receiving input of land information of a survey site from a user; A storage function for storing the land information of the survey site input by the user; A survey function for measuring land; a position calculation function that calculates position information of a surveying unit installed on land at a surveying site based on the position and time signals of the positioning satellite received by the reception function; a calculation function of acquiring the position information of the surveying unit multiple times for each surveying unit, calculating a measurement difference of the position information as an intra-set difference, and calculating a measurement difference of the position information of each set as an inter-set difference; To achieve this, A surveying program comprising:

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