JP2001337155A - Baseline analysis computing system and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out work in a short time without high expertise by providing an analysis plan information, automatically generating function for baseline analysis computing work, after GPS observation. SOLUTION: In a baseline analysis computing system, observation data is obtained from a GPS receiver 9 so as to be matched with existing session information (AB1), and according to the matching process result, analysis plan information, which represents an analysis computing setting state, is produced (AB3, AB4). That is, after the matching process, the analysis plan information such as setting of a reference station in each session, order of analysis of session, order of baseline to be analyzed in each session, and the baseline direction is computed automatically, while taking existing observation plan information, such as an attribute of an observation point (point attribute), a session shape, and an observation time (date) into consideration. Consequently, after the observation data is read, analysis can be carried out immediately, and baseline analysis computing can be efficiently carried out even by an operator having no expert knowledge.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a GPS (Global
The present invention relates to a baseline analysis calculation system for creating a session plan in a reference point surveying operation using a global positioning system, and a recording medium therefor.

[0002]

2. Description of the Related Art On-site observation work in GPS surveying is as follows.
To install a plurality of GPS antennas and receivers at a plurality of measurement points (given points whose coordinate values are already known and new points whose coordinate values are to be obtained), and receive radio waves transmitted from artificial satellites. . Before and after the GPS observation at such a site, observation planning work and result creation work are performed indoors using software.

[0003] For example, prior to on-site observation, information taking into account the movement of an artificial satellite is obtained, and as shown in FIG. 1, one observation (one session) performed in the same time period and a certain period of time. It is necessary to secure a time zone in which radio waves from four or more satellites can be received. In this case, the satellite arrangement state (PDOP) also needs to be dispersed to some extent. Also, as shown in FIG. 2, there may be many obstacles (called “curtains”) that block satellite radio waves. It is necessary to calculate the observable time zone. In addition, it is necessary to prepare an appropriate average map, it is necessary to plan a session in consideration of the correctly set average map, and to establish an observation schedule according to the number of GPS receivers.

[0004] After the GPS field observation, in the baseline analysis for calculating a three-dimensional vector, the calculation order (from which point in which session to start the calculation, the starting point for each vector)
There are unique rules, such as what happens at the end point) and the transfer of the calculation result (the calculation result (coordinate value) of one vector / session is passed to an adjacent vector / session for calculation). When performing baseline analysis, it is necessary to proceed with the calculations according to the various rules described above, but if you do not have considerable expertise, you do not know how to set and calculate, and you must promote the work efficiently Can not.

[0005]

SUMMARY OF THE INVENTION In view of such circumstances, the present invention incorporates automation in consideration of observation plan information into a baseline analysis calculation work at the stage of producing results after GPS site observation, thereby providing high expertise. An object of the present invention is to provide a baseline analysis calculation system capable of performing work in a short time without requiring it, thereby enabling the result creation work to proceed smoothly.

[0006]

According to a main feature of the present invention, a means for acquiring observation data from a GPS receiver, a means for performing a matching process between the acquired observation data and existing session information, Baseline analysis calculation system including means for generating analysis plan information based on a result of processing in accordance with predetermined rules, means for performing baseline analysis based on analysis plan information, and obtaining observation data from a GPS receiver Performing a matching process between the acquired observation data and the existing session information;
Based on the result of the matching process, a recording medium for baseline analysis calculation recording a main program including a step of generating analysis plan information according to a predetermined rule and a step of performing baseline analysis based on the analysis plan information is provided. Provided.

In the present invention, the existing session information is information indicating the attributes of the measuring points, the shape of the session or the observation time, and the analysis plan information includes the setting of the reference station in each session, the analysis order of the session, and the Represents the base line analysis order or the base line direction.

[Effect of the Invention] According to the features of the present invention,
It is configured to perform a matching process between the observation data from the GPS receiver and the existing session information, and to perform a baseline analysis based on analysis plan information generated according to a predetermined rule based on a result of the matching process. It has an analysis plan information automatic generation function that considers existing observation plan information (point attributes, session shape, date and time). In other words, considering existing session information such as session plan information, analysis plan information (reference station settings in each session, session analysis order, baseline order to be analyzed for each session,
Automatically calculate the base line direction. Therefore, analysis can be performed immediately after reading observation data, and even a non-expert can efficiently proceed with the baseline analysis calculation work.

In the baseline analysis calculation system according to the present invention, the existing session information uses information representing the attributes of the measurement points, the shape of the session or the observation time, and the analysis plan information sets the reference station in each session, Information indicating the analysis order, the baseline analysis order for each session, or the baseline direction is output. Also, even if you do not make an observation plan or perform an observation different from the observation plan, by creating and editing the session shape,
It is also possible to automatically calculate various analysis plan information.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings. The following embodiment is merely an example, and various modifications can be made without departing from the spirit of the present invention.

FIG. 3 is a system block diagram showing an overall hardware configuration of a baseline analysis calculation system according to an embodiment of the present invention. In this example, the host computer 1 that mainly performs the GPS observation support work according to the present invention is a personal computer (P
C), and includes a CPU (central processing unit) 2, a system memory 3, an external storage device 4, an input operation device 5 having operators such as a keyboard and a mouse, and a display device 6 such as a display. To 6 are connected to each other via a bus 7.

The CPU 2 for controlling the entire system performs various controls in accordance with various processing programs relating to the GPS observation support service according to the present invention, and executes the system memory (RO).
The M & RAM) 3 includes a ROM (read only memory) storing basic programs and fixed data / parameters, and a RAM (random access memory) temporarily storing various application programs and data.

Further, the external storage device 4 comprises a storage device using a storage medium such as a CD-ROM / FDD (floppy disk) / MO (magneto-magnetic) disk in addition to a hard disk drive (HDD), and supports GPS observation. Various application programs and various data /
The parameters are stored. In this example, various databases for supporting the GPS observation work can be constructed in the external storage device 4.

The input operation device 5 includes a display 6
By operating a predetermined key of the keyboard or instructing an operation button on the display 6 with a mouse or the like while visually recognizing various screens displayed on the screen, various processes for supporting the GPS observation work can be performed. .

A bus 7 is connected to an input / output interface 8, which is a GPS receiver for performing a GPS on-site observation.
In addition to being connected to the S device 9, the total station (T
S: Total Station) 10, a digital camera 11, a digital data input device such as a tablet (digitizer) 12, and a document output device such as a printer 13. The total station 10 is used as a surveying instrument for acquiring current topographic data. It is preferable to use a digital camera 11 with a fisheye lens. The tablet 12 is a coordinate reading device connected to a computer, and is used as a data input device for reading drawings. For example, an existing drawing is pasted, and the existing coordinate values in the drawing are set by performing rotation or scale reduction in software, and coordinate values of other points in the drawing are calculated.

[Overview of GPS Surveying Operation Process]
The reference point surveying operation using GPS (GPS surveying) can be roughly classified into the following three items: (1) observation planning operation before observation, (2) actual observation operation on site, and (3) observation data. Work to create results (various calculations, etc.).

In GPS surveying, the observation work performed on site is to install a plurality of GPS antennas and receivers at a plurality of measurement points and receive radio waves transmitted from artificial satellites. Here, the measuring point includes a given point whose coordinate value is already known and a new point whose coordinate value is to be obtained. Is determined by the number of observers. G like this
Since there are several rules for PS observation, it is necessary to confirm whether these rules are satisfied in the observation planning work before observation in (1). For example,
In the observation planning work of (1), it is necessary to pay attention to the following points.

In one session, as described above, radio waves transmitted from four or more satellites located at an elevation angle of 15 degrees or more can be received for a certain period of time, and the satellite arrangement state (PDOP) is changed. There is a condition that it must be dispersed to some extent. In addition, it is necessary to investigate the shape of the curtain (obstacle) in advance and calculate an observable time zone satisfying this condition.

Before on-site observation, it is necessary to establish a plurality of sessions according to the number of measurement points to be observed and the number of simultaneously usable GPS antenna receivers. In this case, at the time of inspection calculation for producing results after on-site observation, a three-dimensional vector (d
In consideration of obtaining the difference and the difference between (x, dy, dz), a session plan that satisfies a predetermined condition such as observing at least one side of each session overlapping with the side of another session is required. There must be. Further, it is desirable that an arrangement schedule of these GPS receivers be drafted in advance.

In the result creation stage, a three-dimensional net average calculation is performed using the three-dimensional vector group and the given point coordinates in order to obtain a new point coordinate which is the final result. In the figure, if there is a “missing” of a vector for which the three-dimensional network average cannot be calculated, inconvenience will occur in the calculation of the final result. It is necessary to keep.

After the on-site observation, the work of creating the result of (3) is performed using the data acquired by receiving the satellite radio wave.
Some rules also occur in each of these operations.
For example, in the baseline analysis for calculating a three-dimensional vector, the order of calculations such as which measurement point in which session should be started, or the start point / end point of each vector, and calculation of a certain vector or session There are unique rules such as sending calculation results such as passing results (coordinate values) to adjacent vectors and sessions and calculating.

According to an embodiment of the present invention, in the operation (1) described above, various kinds of plan information are automatically registered or generated based on the observation plan.
Not only the on-site observation work in (2), but also the work of creating results such as baseline analysis and three-dimensional net average calculation in (3) (baseline analysis, three-dimensional net average calculation, etc.), and automatic calculation of various work rules Can be realized.
FIG. 4 is a diagram showing main steps of a GPS observation support system including a baseline analysis calculation system according to one embodiment of the present invention. The process of this system can be roughly divided into an observation plan stage ST1, an on-site observation stage ST2, and a result creation stage ST3, and each stage corresponds to the work of (1) to (3).

Referring briefly to FIG. 4, the GPS observation support system according to an embodiment of the present invention generates curtain information based on obstacle observation data in an observation plan stage ST1, and performs curtain information and observation. Average map information (D) according to a predetermined rule based on point information (DB1)
B2), generate session plan information (DB3) according to predetermined rules based on observation condition information, observation point information, and average map information, and deploy GPS receivers according to predetermined rules based on GPS receiver use conditions and session plan information. The schedule information is generated, and the schedule information (DB4) is transferred to the GPS receiver. In the result creation stage ST3, various plan information (DB1 to DB4)
Baseline analysis calculation is performed according to a predetermined rule based on the GPS receiver observation data (ST2).

In the first observation plan stage ST1, the observation points (stations) are determined before the site observation, the attribute data (point attributes) at each station, the average map data representing the connection between the points, and the same. Session configuration data representing the configuration of a session, which is one observation range performed in a time zone, and receiver location data representing the location of a GPS receiver assigned to each measurement point for each session are created. Attribute database DB1 and average map database DB provided in different storage areas (or storage media)
2. Stored and registered in the session database DB3 and the receiver arrangement database DB4.

In the next on-site observation stage ST2,
By referring to various data registered in these databases DB1, DB3, and DB4, actual observation work is sequentially performed according to a work plan indicated by the information content. Then, the result creation work is started in the result creation stage ST3, and the observation data acquired in the stage ST2 is processed and various calculations are performed while referring to the session-related data registered in the databases DB1 to DB3.

FIGS. 5 and 6 are functional block diagrams showing schematic functions of a GPS observation support system including a baseline analysis calculation system according to an embodiment of the present invention. GPS
As described above, the on-site observation work in surveying consists in installing a plurality of GPS antennas and receivers at a plurality of measurement points and receiving radio waves transmitted from artificial satellites. Here, the measuring point includes a given point whose coordinate value is already known and a new point whose coordinate value is to be obtained, and the number of GPS antennas and receivers that can be simultaneously arranged at each measuring point is basically Is determined by the number of observers. As described above, since there are several rules for GPS observation, it is necessary to confirm whether these rules are satisfied in the observation planning stage before observation.

Therefore, in the observation planning stage ST1, the host computer 1 is first used to execute a scheduled GPS observation as shown in a functional block B1.
Set observation conditions such as the number of the receiver owned by the observer and the scheduled date and time of observation. In addition, as shown in a functional block B2, the coordinate data (point data) of the planned measurement point is read by a method such as reading data of a point planned as a measurement point for GPS observation using the tablet 12 or the like. Generate. The printer 13 can print out a “coordinate conversion calculation” using the point data. The coordinate conversion calculation includes, for example, a coordinate system (Vessel) unique to Japan.
And a coordinate value converted between a coordinate system (WGS84) common to the world.

Coordinate data (point data) of these scheduled points
Is added with a point attribute including an eccentric attribute in a functional block B3, and is registered in the point attribute database DB1 of the external storage device 4. Here, the point attribute is an attribute when performing various calculations, for example, “base station” for performing baseline analysis, “BLH fixed”, “known point”, “new point” for performing assumed network calculation. , "Node" and "eccentric point" for performing eccentricity calculation.

As described above, 1 performed in the same time zone
In one observation (one session), radio waves from four or more satellites can be received for a certain period of time in consideration of the movement of artificial satellites, and the satellite arrangement (PDOP) is dispersed to some extent. It is necessary to secure the time zone in which it is. In addition, in Japan, many points are located in mountainous areas, and there are many curtains around the measuring point that block satellite radio waves. It is necessary to calculate a suitable time zone. If the observable time zone cannot be calculated from the curtain information, eccentric observation and eccentricity calculation are required.

For this reason, before the on-site observation, in order to generate curtain (obstacle shape) information and calculate the eccentricity, the total station 10 is used to set the horizontal angle and the altitude angle (360 degrees) of each scheduled measurement point. Obstacle data) and TS observation data on the horizontal angle and altitude angle (TS eccentricity observation data) between two measurement points are acquired. Alternatively, for generating curtain information, the digital camera 11 is used to acquire sky image data of a 360-degree field of view at each measurement point. In this case, it is preferable to use a digital camera using a fish-eye lens that can capture a 360-degree sky image at a time as the digital camera 11. In the functional block B4, the curtain information is automatically generated from the TS observation data or the image data acquired before the observation, and registered in the curtain information storage area of the external storage device 4. The "curtain information" can be printed out from the printer 13.

After the on-site observation of the GPS, the three-dimensional vector group is expressed by using the three-dimensional vector group and the given point coordinates to obtain a new point coordinate which is the final result. If the “average diagram” includes “missing” of a vector for which the three-dimensional network average cannot be calculated, inconvenience occurs in calculating the final result. Therefore, it is necessary to prepare an average map without such omissions before the on-site observation, and to make a session plan based on the average map. When making a session plan, a three-dimensional vector (dx,
Since it is necessary to take into account the calculation of the difference and the difference between the dy, dz), correct session settings must be set so that at least one side of each session can be observed overlapping with the other session. Plan ahead.

In the function block B5, such average map data and session plan information are transferred to the function blocks B1 to B1.
It is automatically generated based on the observation condition data, point data, point attribute data, and curtain information obtained in B4, and is stored and registered in the average map database DB2 and the session database DB3 of the external storage device 4. The session plan information generated here includes a session shape, a detailed scheduled observation date and time, and is sent from the printer 13 to various session plan graphs in a graph format (for example, “number of satellites and PDO”).
P "," elevation angle "," azimuth "," number of satellites "," satellite ",
"Skyplot", "PDOP", "HDOP",
“VDOP”, “GDOP”, “TDOP”, etc.).

Depending on the number of measurement points to be observed and the number of GPS receivers that can be used at the same time, as a consideration before the GPS site observation, a plurality of session
It is necessary to plan the arrangement schedule of the S antenna receiver in advance. Therefore, in the function block B6, G
Based on observation conditions such as a PS receiver number and session plan information, schedule information indicating an arrangement schedule of the GPS receiver is automatically generated, and stored and registered in the receiver database DB4 of the external storage device 4. The schedule information reflects the contents of the point attribute / session [DB1, DB3], and the printer 13 can print out a "schedule table" or the like based on the schedule information.

At the next on-site observation stage ST2,
The schedule information [DB obtained in the function block B6
4] is automatically registered in the GPS device 9, the GPS device 9 is arranged and operated in accordance with the registered schedule information,
At each station, observation data is acquired by receiving satellite radio waves (type of radio waves from artificial satellites = L1 band, L2 band).

After the site observation, the result creation stage ST
In step 3, various operations for creating results are performed using observation data acquired by receiving satellite radio waves. Some rules also occur in each of these operations. For example, in the baseline analysis for calculating a three-dimensional vector, the order of calculation such as what measurement point in which session should be started, or what the start point / end point should be in each vector, and calculation of a certain vector or session There are unique rules such as sending calculation results such as passing results (coordinate values) to adjacent vectors and sessions and calculating.

Therefore, in the result creation stage ST3,
In addition to handing over the information registered and generated based on the observation plan to the on-site observation work, as shown in functional blocks B7 to B10, results creation work such as baseline analysis and three-dimensional net average calculation (baseline analysis, three-dimensional Network average calculation, etc.)
A mechanism for automatically calculating various work rules is also realized.

That is, in the function block B7,
Observation data from the GPS device 9, point attribute data [DB1] from the function block B3, average map data and session information (session plan information) from the function block B5
Baseline analysis calculation is automatically performed based on [DB2, DB3]. From the printer 13, the observation data and the baseline analysis results (coordinates) describing the observed raw information [point number (No), antenna height, observed satellite status, etc.) are obtained from the observation data and the baseline analysis results. Various drawings can be printed out in addition to the “observation book” in which values, vectors, etc. are described.

In the function block B8, the function block B7
Inspection calculation is automatically performed based on the baseline analysis result obtained in step (1), and an “inspection calculation book” is output from the printer 13 by the inspection calculation. In the function block B9, the results of the baseline analysis and the point attributes from the function blocks B7 and B2,
In addition, an eccentricity calculation is performed based on the TS eccentricity observation data regarding the horizontal angle and the altitude angle between the two measurement points obtained by the eccentricity observation of the total station 10, and the eccentricity calculation book and the eccentricity calculation book are printed by the printer. 13 is output.

In the function block B10, the function block B
The three-dimensional network average calculation is performed based on the base line analysis results and the point attributes from 7 and B2, and further, the functional block B11 performs the quality management calculation based on the result of the three-dimensional network average calculation. By the three-dimensional network average calculation and the quality control calculation in the functional blocks 10 and B11, the "three-dimensional network average calculation report", "result table", "quality control table", and "quality control calculation book" are respectively sent from the printer 13. Is output.

FIGS. 7 and 8 are flowcharts showing the main processing executed in the GPS observation support system including the baseline analysis calculation system according to one embodiment of the present invention. In the observation planning stage ST1 (indoor work), first, in step M1, the site information (work room and the like) of the GPS observation is registered in advance, and the next step M2
Then, information (coordinate data and the like) of a point scheduled for GPS observation is registered in the point attribute database DB1 as observation point data.

In the following step M 3, curtain information automatically generated from TS observation data or image data from the total station 10 or the digital camera 11 is registered in the curtain information storage area of the external storage device 4.
Also, in step M4, a session plan is executed according to a predetermined rule, and average map data is created based on the arrangement state and point attributes of the points to be observed. In consideration of this, the shape and observation date and time of all sessions are calculated, and session plan information is automatically created.

After the creation of the average chart data and the session plan information in step M4, a schedule creation operation is performed in step M5. In this schedule creation work, how to arrange the limited number of GPS receivers (GPS devices 9) is determined in accordance with the shape of the session, and automatic setting is performed for each receiver. Observation information is set. By this operation, schedule information for instructing the arrangement and operation of the GPS receiver (GPS device 9) is automatically created.

Next, in the on-site observation stage ST2 (outdoor work), in step M6, schedule information is automatically registered in the GPS device 9, and the GPS device 9 is arranged at each measurement point according to the registered schedule information. Perform GPS in-situ observations. In this case, it is determined in step M7 whether or not eccentric observation is necessary. If it is determined that eccentric observation is necessary, eccentric observation by the total station (TS) 10 is performed in step M8. In this eccentric observation, a place where it is impossible to acquire radio waves from the satellite is referred to as an “eccentric point”, and a temporary measurement point is set as an “eccentric point” in the vicinity, and GPS observation is performed at this eccentric point Do. In this case, TS
(Total station) By eccentric observation, the positional relationship between the eccentricity calculation point and the eccentricity point in advance (horizontal angle and altitude angle)
Observe

Thereafter, in the result creation stage ST3 (indoor work), in step M9, the on-site observation stage ST
The observation data acquired in step 2 is fetched, and step M10
Perform baseline analysis at. In the next step M11, an automatic inspection calculation is performed based on the baseline analysis results, and further, the baseline analysis results and point attributes, and the total station 10
Based on the TS eccentricity observation data (horizontal angle and altitude angle between two points) obtained by the eccentricity observation, the eccentricity calculation for replacing the vector from the eccentricity finding point is performed.

Next, in step M12, a three-dimensional net average calculation is performed based on the results of the baseline analysis and the point attributes. In this three-dimensional net average calculation, a new point coordinate is calculated based on a vector between each point calculated by the baseline analysis (M10) and a coordinate value of each point, and a new point coordinate is calculated. There are a hypothetical net average calculation in which values are fixed and a practical net average calculation in which all given points are fixed and calculated. further,
In step M13, an accuracy management calculation for verifying the accuracy of the given point is performed using the existing coordinate values of each given point and the result calculated by the three-dimensional net average calculation.

Here, if a good result is not obtained in each of the processes in steps M10 to M13 (NG), the process returns to step M10 and the processes in steps M10 to M13 are executed again. If a good result is not obtained, it is also possible to return to step M12 and start over from the three-dimensional network average calculation. If a good result is not obtained in each of the processes of Steps M10 to M13 (NG), the process may return to Step M3 of the observation planning stage ST1 and start over from the planning stage as necessary.

When the processing in step M13 is completed, in step M14, the three-dimensional network average calculation (M1
A form describing the coordinate values calculated in 2) is output from the printer 13 as a “result table”, and the process proceeds to step M15.
In the above, various drawings and various calculation documents are printed out based on various result data obtained by the result creating operation.

[Baseline Analysis Calculation System] In the GPS survey, after the site observation, the work of creating the result is performed using the data acquired by receiving the satellite radio wave. Occurs. For example, in a baseline analysis that calculates a three-dimensional vector,
The calculation order such as which measurement point in which session starts calculation, or what happens to the start point / end point in each vector, and a certain vector, the calculation result (coordinate value) of the session is passed to an adjacent vector and session. There are unique rules for sending calculation results such as calculating.

In one embodiment of the present invention, information registered and generated based on an observation plan is transferred not only to on-site observation work but also to work for creating results such as baseline analysis, and various work rules are automatically set. It is possible to construct a baseline analysis calculation system that realizes a mechanism of calculating by the above.
In this baseline analysis calculation system, after reading the observation data, the analysis can be immediately performed by the analysis plan information automatic generation function, so that even a non-expert user can efficiently proceed with the result creation work.

FIG. 9 is a functional block diagram showing a schematic function in a baseline analysis calculation stage according to an embodiment of the present invention. Mainly, a functional block B7 in the functional block diagrams of the whole system shown in FIGS. Corresponding to the function of. Briefly referring to FIG. 9, the baseline analysis calculation system according to the present invention acquires observation data from the GPS receiver 9 and performs matching processing with existing session information (A
B1) Generate analysis plan information (representing the setting state of analysis calculation) according to the result of the matching process (AB3, AB)
4). In other words, after the matching process, considering the existing observation plan information such as the attribute of the measurement point (point attribute), the shape of the session or the observation time (date and time), the setting of the reference station in each session, the analysis order of the session, and the Automatically calculates analysis plan information such as the order of the baseline to be analyzed and the baseline direction.

The functional block AB1 receives the observation data (GPSL1, L2) acquired by the GPS device 9, and obtains data (internal processing / station number, Perform matching processing (such as observation time). With this matching process, the order of analysis and the like can be determined by applying observation data to the session shape created at the planning stage. In the next edit block AB2, the observation data and / or the session plan data are edited as necessary. For example, if there is no observation plan or observations are made using a method different from the observation plan, a session shape is created and edited, and both data are matched.

When the observation and plan data are matched by the processing of the functional blocks AB1 and AB2, the functional block AB
At 3, the analysis plan information for setting analysis calculation conditions such as the analysis order of the session and the baseline, the reference station of each session (for example, the setting of the reference station in each session, the analysis order of the session, the analysis order of the baseline for each session, Base line direction), and the analysis plan information is stored in the function block A.
Edit in B4 if necessary. And the functional block A
At B5, an automatic baseline analysis calculation is executed based on the analysis plan information.

FIGS. 10 and 11 are flowcharts showing the baseline analysis calculation processing executed in the baseline analysis calculation system according to one embodiment of the present invention. When the observation data from the GPS device (GPS receiver) 9 is read into the system in the first step A1 of this processing flow, the matching process is automatically started. When the automatic matching process is executed in step A2, the reference station is set in each session according to a predetermined calculation rule in consideration of the existing observation plan information (point attributes, session configuration points, session configuration baseline, session observation date and time, etc.). The analysis plan information such as the session analysis order, the analysis baseline order for each session, and the baseline direction is automatically generated.

In the next step A3, it is determined whether or not the matching process is good. If so, the process proceeds to step A4, and if not, the process proceeds to step A5. Step A
In step 5, it is searched whether or not there is plan data corresponding to the observation data. If there is no plan data, the process proceeds to step A6 to reset the plan data and returns to the joining process in step A2. On the other hand, if there is plan data, step A5
Then, the process proceeds to step A7, where it is determined whether or not the defective plan data is to be deleted. If there is any data to be deleted, the data is deleted in step A8, and the process returns to the joining process in step A2. If there is no data to delete,
It returns to the joining process of step A2. In this way, the processing of steps A2 to A8 is repeated as appropriate in accordance with the result of the alignment processing, and if a good alignment result is obtained in step A3, the process proceeds to step A4 to terminate the automatic alignment processing, and step A4
Go to 9.

In step A9, it is determined whether or not to edit the observation and plan data.
Step A1 after editing observation and planning data at 0
Go to step 1, otherwise go directly to step A11. In step A11, it is determined whether there is a change in the analysis direction in the entire session. If there is a change, in step A12, the changed analysis direction is set, and the process proceeds to step A13 (FIG. 11). If so, the process proceeds directly to step A13. Note that the analysis direction of the entire session includes types such as “clockwise”, “counterclockwise”, and “radial”.

When the data matching is completed and the analysis direction is determined, it is determined in step A13 whether or not there is a change in the analysis plan. This analysis plan refers to a function of individually editing analysis plan information (session analysis order, baseline analysis order, reference station of each session, and the like) determined by data matching and analysis direction. Here, if there is a change in the analysis plan, in step A14, the changed analysis plan is set and the process proceeds to step A15. Otherwise, the process directly proceeds to step A15.

In step A15, it is determined whether there is a change in the analysis conditions. These analysis conditions include conditions such as the setting of the altitude angle.
For example, when the set altitude angle is “20 degrees”, observation data acquired at an altitude angle of 20 degrees or less is not used for subsequent calculations. Here, if there is a change in the analysis plan, the changed analysis conditions are set in step A16, and the process proceeds to step A17.
Proceed to. When the analysis direction, the analysis plan, and the analysis conditions are determined in this way, the baseline analysis is performed in step A17.

[Baseline Analysis Processing] Generally, in the baseline analysis for calculating a three-dimensional vector, the calculation proceeds according to a predetermined rule. For example, in FIGS. 12 (1) and (2),
In the first session Sa, the baseline A-B is analyzed using the measuring point A as a reference station of the whole session, and then the baseline A is analyzed.
The base line BC is analyzed based on the coordinates of the measurement point B, which is the analysis calculation result of -B. Similarly, based on the analysis calculation result of the baseline BC (coordinate of the measurement point C), the baseline CD is changed to the baseline C
Based on the analysis result of -D, the baseline DA is sequentially analyzed.

In the next second session Sb, for example, when the measuring point E is set to the reference station as shown in FIG.
The base line EF is analyzed and calculated on the basis of the coordinates of the reference station E. In this setting, since the reference station E analyzes a single positioning value (coordinates), the relationship with the first session Sa (request for coordinates). ) Does not hold (NG). On the other hand, as shown in FIG. 12 (2), when the measuring point C is set as the reference station in the second session Sb, based on the coordinates of the measuring point C which is the calculation result of the baseline BC analyzed in the first session Sa. As a result, the relationship between the first session and the coordinate transfer is established (OK).

In FIG. 12 (3), if, for example, the session Sd is analyzed instead of the sessions Sb and Sc after the baseline analysis of the session Sa, the transfer to the session Sd is not established (NG). Furthermore, even if the second session Sb is analyzed and calculated after the baseline analysis of the first session Sa, the first session S
In the case a, where the base line B → C is to be analyzed, for example, as indicated by an arrow X, the base line C → B is analyzed.
An offer to the session Sb is not established (N
G). Also, in the session Sc, if the base line HE is analyzed next to the base line CG and not the base line GH, for example, as shown by an arrow Y, the transfer to the measurement point H is not established (NG) .

As described above, for example, as shown in FIG. 13, the given point A in which the existing coordinate values are set is set as the reference station serving as the calculation start point of the first session, and the next measurement point B is turned clockwise.
Is calculated, and the next baseline BC is analyzed using the coordinates of the measurement point B on the analyzed baseline AB, so that the calculation is performed clockwise. In the baseline analysis of the next second session Sb, the measurement point C already obtained in the analysis of the first session is used as the reference station of the calculation start point, and the base line is turned clockwise based on the coordinates of the measurement point C. The analysis proceeds sequentially from CD.

In other words, when performing the baseline analysis, the calculation proceeds in principle according to the following rules: (1) The result table coordinates (values on the Vessel ellipsoid) of one measurement point are calculated on the WGS84 ellipsoid. (2) Set the analysis reference station in consideration of the transfer of the calculation result coordinates in session units, and (3) Set the session in consideration of the transfer of the calculation result coordinates. (4) setting the analysis order of the base line in consideration of the transfer of the calculation result coordinates, (5) setting the base line direction in consideration of the transfer of the calculation result coordinates, and the like.

However, in order to proceed with the calculation of the baseline analysis in accordance with such various rules, considerable technical knowledge is required, and the calculation work cannot be efficiently promoted. Therefore, in one embodiment of the present invention, step A
In step 2, after the automatic matching process, considering the existing observation plan information (point attributes, session configuration points, session configuration baseline, session observation date and time, etc.), the reference station setting in each session, session Analysis plan information such as an analysis order, an analysis baseline order for each session, and a baseline direction is automatically calculated. FIG. 14 shows an example of an analysis plan information (= “analysis information”) automatically generated screen displayed on the display 6.

The calculation rules for the automatic generation of the analysis plan information are, for example, as follows: (1) A station having a reference station with a point attribute is set as a reference station of all sessions, and a session including the point is changed from a session including the point to a session of the session. Determine analysis order. (2) From reference station in session,
The base line direction is determined based on existing selection conditions (clockwise, counterclockwise, radial). (3) An adjacent session is set as a session to be analyzed next, and a station adjacent to the previous session is set as a reference station of the next session. And repeat (2).

Step A17 is performed using such analysis plan information.
When the baseline analysis is performed at, in the next step A18,
It is checked whether the result of the baseline analysis is normal. This check is, for example, normal (eg, “Fix”) or defective (eg, “Float”) on the analysis plan information automatic generation screen of the display 6 for each baseline.
Is displayed, and in the case of a failure, a warning message is displayed during the baseline analysis to prompt the user to select whether or not to continue the baseline analysis. If the result of the analysis is not normal, step A1
Returning to step 5, the processing of steps A15 to A18 is repeated until the analysis result is determined to be good.

If it is determined in step A17 that the result of the analysis is normal (good), the process proceeds to step A19, where it is determined whether or not there is another observation data to be subjected to baseline analysis. Returning to A1, the processing of steps A1 to A19 is repeated for the observation data. Then, when it is determined in step A19 that there is no observation data, the baseline analysis calculation processing ends.

As described above, in this baseline analysis calculation system, in step A2, the observation plan information such as the point attribute and the shape / date and time of the session is considered by the analysis plan information automatic generation processing executed after the automatic matching processing. Then, the settings of the reference station in each session, the analysis order of the sessions, the analysis baseline order for each session, the baseline direction, and the like are automatically calculated, and the corresponding baseline analysis plan information is automatically generated. In addition, even if the observation plan is not set or the observation is performed by a method different from the observation plan,
By creating and editing session shapes, it is also possible to automatically calculate various analysis plan information. Therefore, since the analysis can be performed immediately after reading the observation data, even a user who is not an expert can efficiently proceed with the result creation work.

[0068]

As described above, according to the present invention, matching processing is performed between observation data from a GPS receiver and existing session information, and based on the result of the matching processing, analysis plan information is obtained according to a predetermined rule. (Representing the setting state of the analysis calculation) is automatically generated, and the baseline analysis is performed based on the analysis plan information. The existing observation plan information [attribute of station (point attribute), shape of session Or, an analysis plan information automatic generation function considering the observation time (date and time)] is provided. That is, in consideration of the existing session information such as the session plan information, the analysis plan information such as the setting of the reference station in each session, the analysis order of the sessions, the order of the baseline analyzed for each session, and the baseline direction is automatically calculated. Therefore, it is possible to perform analysis immediately after reading the observation data, and it is possible to efficiently proceed with the baseline analysis calculation work even if one is not an expert.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining conditions for receiving satellite radio waves in GPS observation.

FIG. 2 is a diagram for explaining curtain information in GPS observation.

FIG. 3 is a block diagram showing an overall configuration of a GPS observation support system including a baseline analysis calculation system according to one embodiment of the present invention.

FIG. 4 is a diagram showing main steps of a GPS observation support system including a baseline analysis calculation system according to one embodiment of the present invention.

FIG. 5 is a part of a functional block diagram showing schematic functions of a GPS observation support system including a baseline analysis calculation system according to one embodiment of the present invention.

FIG. 6 is another part of a functional block diagram showing schematic functions of the GPS observation support system including the baseline analysis calculation system according to one embodiment of the present invention.

FIG. 7 is a part of a flowchart showing a main process executed in the GPS observation support system including the baseline analysis calculation system according to one embodiment of the present invention;

FIG. 8 is another part of a flowchart showing main processing executed in the GPS observation support system including the baseline analysis calculation system according to one embodiment of the present invention.

FIG. 9 is a functional block diagram showing a schematic function in a baseline analysis calculation stage according to an embodiment of the present invention.

FIG. 10 is a part of a flowchart showing a baseline analysis calculation process executed in the baseline analysis calculation system according to one embodiment of the present invention;

FIG. 11 is another part of a flowchart showing a baseline analysis calculation process executed in the baseline analysis calculation system according to one embodiment of the present invention.

FIG. 12 is a diagram for explaining rules for performing a baseline analysis;

FIG. 13 is another diagram for explaining a rule for performing a baseline analysis;

FIG. 14 is a diagram showing an example of an analysis plan information automatic generation screen displayed on a display in one embodiment of the present invention.

[Explanation of symbols]

 1 Host computer, 9 GPS device (GPS antenna receiver). 10 total stations (TS), 11 digital cameras (with fisheye lens), A to K measurement points, Sa to Sd sessions.

Claims (3)

[Claims] A means for obtaining observation data from a GPS receiver; a means for performing a matching process between the obtained observation data and existing session information; and an analysis plan in accordance with a predetermined rule based on a result of the matching process. A baseline analysis calculation system, comprising: means for generating information; and means for performing a baseline analysis based on analysis plan information. 2. The existing session information indicates the attributes of the measuring point, the shape of the session or the observation time, and the analysis plan information includes the setting of the reference station in each session,
The baseline analysis calculation system according to claim 1, wherein the analysis order of the session, the baseline analysis order for each session, or the baseline direction is represented. 3. Obtaining observation data from a GPS receiver, performing a matching process between the obtained observation data and existing session information, and performing an analysis plan according to a predetermined rule based on a result of the matching process. A recording medium for a baseline analysis calculation, characterized by recording a program comprising a step of generating information and a step of performing a baseline analysis based on analysis plan information.