JPH109854A - Earth-volume managing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an earth-volume managing apparatus capable of corresponding to both of calculations of a mesh method and a cross section method. SOLUTION: In this apparatus, a fundamental calculation means 11 calculating fundamental data 12 necessary for both fundamental calculations of a cross section method and a mesh method from a common data 2, a cross section calculation means 6 performing the original calculation based on the cross section method from cross section method data 3 necessary for the original calculation of the cross section method and the above mentioned fundamental data and a mesh method calculation means 7 performing calculation based on the mesh method from the mesh method data 4 necessary for the original calculation of the mesh method and the above mentioned fundamental data are provided and a display device 10 can be controlled on the basis of the results calculated by both calculation means 6, 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earthwork management device capable of processing both a cross-section method and a mesh method with a focus on common data.

[0002]

2. Description of the Related Art Generally, in order to create a ground as planned by performing construction such as cutting, embankment, leveling, etc., a display device is constructed on a display device based on design data, survey data collected in the course of construction, and the like. By graphically displaying the terrain, it is possible to know whether the construction is progressing as planned. If it is found that progress has not been made as planned, it can be made to conform to the plan by making modifications such as cuts, embankments, and leveling of necessary parts. In this case, it is necessary for the display device to accurately and precisely display graphically the undulations and unevenness of the terrain. The conventional earthwork volume management device can respond to the above needs by displaying the result calculated based on the mesh method (point height method) based on the data obtained by surveying etc. on the display device, or by surveying etc. Displaying the result of calculation based on the section method on the basis of the data obtained in (1) on a display device has been proposed. The outline of the mesh method is as follows. As shown in FIG. 4, a mesh A having a large number of grid points a provided at position coordinates at predetermined intervals on two-dimensional coordinates is provided. A graphic is displayed on the work object or the work target place as shown in FIG. 5 based on the geodetic result of the elevation of the target place. As for the cross-section method, it is possible to determine the amount of soil cut, fill, construction progress, and the quantity before and after the construction by a method similar to the linear interpolation method similar to the mesh method. The outline of the section method is as follows:
The rear, that is, the current cross-sectional area and the previous cross-sectional area are added, divided by 2, and the distance between the front and rear cross-sections is added to calculate the volume (volume).

[0006] Conventionally, the following two data processing methods are used for the cross-sectional method. (1) Measure geodetic data (distance and altitude value from the center of the section line) on the section line at the just point and input numerical values. (2) The geodetic data deviated from the sectional line is forcibly regarded as a point on the sectional line, and a numerical value is input. The following two data processing methods are mainly used for the conventional mesh method. (1) Geodetic data (elevation value of a grid point) on a grid point is measured at a just point, and a numerical value is input. (2) The distance from the grid point and the elevation value of the point are distributed and calculated from a plurality of geodetic data shifted from the grid point, and the numerical value is input.

[0004]

However, the conventional earthwork amount management device calculates either the cross-section method or the mesh method (point height method). For this reason, a device that calculates the cross section method cannot respond to the request to perform the calculation by the mesh method and display the graphic, and a device that performs the calculation by the mesh method cannot respond to the request. We couldn't answer the request to do the calculations and display them graphically. In particular, in the conventional system, the section line data of the section method and the elevation data of the grid points of the mesh method are individually input and edited. Therefore, there is a risk that a large error may occur if data is mutually converted for the purpose of supporting both the sectional method and the mesh method.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides an earthwork amount management device capable of responding to any request of calculation by a mesh method and calculation by a cross section method. Especially,
In the present invention, any calculation can be performed only by inputting the minimum necessary data, thereby reducing the burden of the input operation.

[0006]

According to the first aspect of the present invention, there is provided a basic data calculation method which calculates basic data 12 necessary for basic calculations of both a cross section method calculation and a mesh method calculation from common data 2. Means 11, section method calculation means 6 for performing calculation based on the section method from the section method data 3 necessary for performing a unique calculation of the section method and the above basic data, and necessary for performing the unique calculation of the mesh method A mesh method calculating means 7 for performing calculations based on the mesh method from the simple mesh method data 4 and the basic data,
7, the display device 10 can be controlled, and the section method calculation means 6 and mesh method calculation means 7
And selecting means 8 for selecting and driving any one of the above.

According to a second aspect of the present invention, the basic data calculating means 11 calculates the TI for obtaining triangular mesh data of the terrain.
N calculation means.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. FIG. 1 is a block diagram showing an embodiment of an earthwork amount management device according to the present invention. In the figure, reference numeral 1 denotes input means such as a keyboard and a mouse. , Mesh method data 4 and the like are output to the CPU 13. The common data 2 may include construction outline, coordinate system establishment information, formation information, survey point information, triangular mesh information, and the like.

The section method data 3 includes center line information, section line information, section component information, and section area information.

As the mesh method data 4, mesh attribute information (mesh origin coordinates, mesh matrix number, mesh interval, etc.), grid point elevation information, and the like can be considered.

The common data 2 is a TIN (Triangulated I) as a common data calculating means constituting the CPU 13.
rregular Network) is taken into the calculation means 11 and this TI
The TIN data (triangular mesh method data) output from the N calculating means 11 is used as the basic data 12 as the sectional method calculating means 6.
Is supplied to the mesh method calculation means 7. The TIN calculation means 11 expresses geodetic points (elevation, coordinate position) as vertices of a triangle, and expresses terrain by a triangle. Since the vertices of the triangle are three-dimensional data having Z-value information, random terrain can be represented. The basic data 12 composed of the triangular mesh method data includes the section method calculation means 6 and the mesh method calculation means 7 Will be adopted as shared data necessary for performing the basic calculation of.

The section method data 3 is taken into the section method calculating means 6 together with the basic data 12, and the mesh method data 4 is taken into the mesh calculating means 7 together with the basic data 12.

The CPU 13 is provided with a selection means 8. The selection means 8 selects one of the section method calculation means 6 and the mesh calculation means 7 based on the selection signal 5 from the input means 1 to operate.

The calculation results of the section method calculation means 6 and the mesh calculation means 7 are supplied to a display device control means 9, which controls the display device 10.

According to the above configuration, various data are input to the input means 1, and among the data output from the input means 1, the common data 2 is input to the TIN calculation means 11 for processing. Three-dimensional output data having Z-value information capable of expressing random terrain from the calculating means 11 is supplied as basic data 12 to the section method calculating means 6 and the mesh method calculating means 7 for performing the basic calculation. Adopted to. That is, the triangular mesh is a three-dimensional terrain model constructed based on geodetic data that is random in a plane.
The cross-section method uses the function of cutting out an arbitrary cross section from this triangular mesh to obtain the distance from the center on the cross-section line and the elevation value. Similarly, in the mesh method (point elevation method), an elevation value of an arbitrary point is obtained from a triangular mesh by using a function of obtaining an elevation value of the grid point.

Here, when the section method calculation means 6 is selected and driven by the selection means 8, the section method calculation means 6 converts the basic data 12 and the section method data 3 outputted from the input means 1 into the basic data 12 and the section method data 3 outputted from the input means 1. The calculation based on the cross-section method is executed based on the calculation, and the calculation result is output to the display device control means 9. The display device control means 9 controls the display device 10 to graphically display the calculation result based on the cross-section method.

When the mesh method calculation means 7 is selected and driven by the selection means 8, the mesh method calculation means 7 calculates a mesh based on the basic data 12 and the mesh method data 4 output from the input means 1. The calculation based on the mesh method is executed, and the calculation result is output to the display device control means 9. The display device control means 9 controls the display device 10 to graphically display the calculation result based on the mesh method.

According to the embodiment of the present invention, the common data 2 is input to the TIN calculating means 11 to generate the basic data 12, which is used as the sectional method calculating means 6 and the mesh method calculating means 7.
, It is possible to avoid data duplication and management, and reduce the complexity of input work based on the common operability of the system. In particular, this system uses a triangular mesh as basic data,
Then, the section method and the mesh method data are generated, and the unified management of the terrain data becomes possible.

Regarding the use of the section method calculation means 6 and the mesh calculation means 7 by the selection means 8, this management method firstly follows the instructions of the owner (orderer). For long and narrow (linear) construction works such as golf courses and holes, use the cross-section method, and for wide-spread construction works such as residential lands and industrial parks, use the mesh method. Therefore, even in the development of residential land, the construction section of the approach road is
It is conceivable that the construction zone of the housing construction site will be used separately for the mesh method. It should be noted that both the cross-section method and the mesh method can support both detailed display output and rough display output by setting the interpolation interval.

In the above embodiment, the calculation of the cross section method and the mesh method is performed by the CPU 13 in response to the request. However, the present invention includes the slice method calculation means 14 in the CPU 13 as shown in FIG. TIN calculation means 11
Input the basic data 12 from the
Slicing method data 15 from the
The display may be controlled by controlling the display device control means 9 by executing a calculation based on the slicing method based on the methods 2 and 15. Also in this case, the selection means 8 is operated by the selection signal 5 from the input means 1, and when the slice method calculation means 14 is selected by the selection means 8, calculation based on the slice method is performed.

Here, the calculation based on the slice method is as follows.
This is a means for calculating the area surrounded by contour lines with a plan meter and calculating the volume by the cross-section method at both ends, using the distance between contour lines as the distance.

[0022]

As described above, according to the first aspect of the present invention, the basic data 12 required for the basic calculation of both the calculation of the section method and the calculation of the mesh method is calculated from the common data 2. Calculation means 11, cross-section method calculation means 6 for performing calculations based on the cross-section method from the cross-section method data 3 necessary for performing the unique calculation of the cross-section method and the above basic data, and A mesh method calculation means 7 for performing calculations based on the mesh method from necessary mesh method data 4 and the basic data;
7, the display device 10 can be controlled, and the selection means 8 for selecting and driving one of the section method calculation means 6 and the mesh method calculation means 7 is provided. Method and section method can be used, and the common data is input, so that the minimum necessary data input is sufficient, and the burden of input work can be reduced. Further, according to the second invention, the basic data calculation means 11 determines the TIN for obtaining triangular mesh data of the terrain.
Since the calculation means is used, both the calculation of the mesh method and the calculation of the cross-section method can be executed accurately.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of an earthwork amount management device of the present invention.

FIG. 2 is a flowchart for explaining the operation of the earthwork amount management device of the present invention.

FIG. 3 is a block diagram showing another embodiment of the earthwork amount management device of the present invention.

FIG. 4 is a diagram showing an example of calculation of a mesh method used in the present invention.

FIG. 5 is a diagram showing an example of calculation of a mesh method used in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Input means 2 Common data 3 Section method data 4 Mesh method data 5 Selection signal 6 Section method calculation means 7 Mesh method calculation means 8 Selection means 9 Display device control means 10 Display device 11 TIN calculation means 12 Basic data 13 CPU 14 Slice method Calculation means 15 Slice method data

Claims (2)

[Claims] 1. A basic data calculation means 11 for calculating basic data 12 necessary for basic calculations for both a section method calculation and a mesh method calculation from common data 2, and a unique calculation of a section method. Section method calculation means 6 for performing a calculation based on the section method from the section method data 3 necessary for the above and the basic data, and the mesh method data 4 required for performing a unique calculation of the mesh method and the mesh method from the above basic data. Based on the mesh method calculation means 7 for performing the calculation based on the calculation results, the display display device 10 can be controlled based on the results calculated by these calculation means 6 and 7, and any one of the cross-section method calculation means 6 and the mesh method calculation means 7 An earthwork amount management device, comprising a selection means 8 for selecting and driving the earthworks. 2. An earthwork management device according to claim 1, wherein said basic data calculation means comprises TIN calculation means for obtaining triangular mesh data of the terrain.