JP2719247B2 - Work Machine Weight Analysis System Using 3D Graphics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for analyzing the weight of a work machine using a three-dimensional graphic processing system and supporting the design of the work machine.

[0002]

2. Description of the Related Art As a support system for designing an industrial machine with a weight change, particularly an agricultural vehicle such as a combine, a system capable of graphic processing such as a CAD system has been conventionally used.

[0003]

However, the tools used in this case only contribute to a two-dimensional study. For this reason, the Wh of each element block constituting the machine is required.
aT-if analysis, that is, when one element block is slightly moved on the display screen or weight is changed, the change in the center of gravity position of the entire machine with respect to it, the degree of interference with other element blocks, Comprehensive analysis to examine changes in design was almost impossible.

It is an object of the present invention to perform a weight analysis of a work machine by using a high-speed computer capable of performing three-dimensional graphics processing, thereby performing the same.
An object of the present invention is to provide a system capable of supporting the design of a work machine.

[0005]

According to the present invention, there is provided a unit shape file for storing a shape of a work machine as a target model into a plurality of three-dimensional functional units, storing shape data of each unit, and a center of gravity of each unit. A mass property file for storing mass property data of position data and weight data, means for displaying the mass property file data in a table, and means for enabling editing of the mass property data by directly operating the table. , Is provided.

Further, means for simultaneously displaying the shape of each unit and the table on the same screen, and when the mass property data is changed by operating the table, the unit display related to the change is also changed at the same time. Means.

[0007]

In the present invention, a workstation, a super minicomputer, or the like, which can perform high-speed processing as hardware and has a high-precision color display, is used.

[0008] The system of the present invention includes at least a unit shape file and a mass property file. The unit shape file divides the shape of the agricultural machine serving as the target model into a plurality of three-dimensional functional units and stores the shape data of each unit. By using this shape data, the three-dimensional shape of each unit can be displayed on the display screen. The displayed shape is not only a contour line but also a process (for example, a color process) for each surface.

The mass property file is stored as mass property position data and weight data mass property data of each unit.

[0010] In the system of the present invention having the above file structure, in claim 1, the data of the mass property file is displayed in a list in a table. Each cell on this table can be directly operated by using an input device such as a mouse or an input key, and by performing an operation on each cell, mass property data can be edited.

According to a second aspect of the present invention, the shape of each unit and the table are simultaneously displayed on one screen, and when the mass property data is changed by operating the table, the unit display is also changed at the same time. Done.

[0012]

FIG. 1 is a block diagram of the system of the present invention. As the processor 1, a processor having an extremely high speed as compared with an ordinary personal computer CPU or the like is used. Areas such as an OS area, a program area, a file data development area, and other work areas are allocated to the main memory. The video memory 3 is connected to a high-precision color display 4. If necessary, a dedicated processor for the graph I box process is connected to this portion. I / O controller 5
Are connected to a unit shape file 6, a mass property file 7, and a display file 8, and a keyboard 9 and a mouse 10 are connected as input devices. The unit shape file stores the shape data of each unit when the target model is divided into a plurality of three-dimensional functional units. The mass property file 7 stores mass property data of the center of gravity position data and weight data of each unit. The display file 8 includes the display color and diameter of a sphere representing the position of the center of gravity of each unit, and other three-dimensional matrices.
Data related to display such as display data for ricks scale is stored.

FIG. 2 shows a unit shape file. Here, the unit NO = 1 indicates that the unit is a reaper, and the unit NO = 2 indicates that the unit is a threshing unit. FIG. 3 shows a mass property file. The weight of the mowing part of the unit NO = 1 is 115 kg, and the coordinates of the position of the center of gravity are -500, 28, X, Y and Z, respectively.
300 (reference point previously reference plane are determined anywhere on surface) indicates that it is. FIG. 4 shows a display file. For example, the display of the position of the center of gravity of the mowing portion of the unit NO = 1 indicates that the color is red (here, the position is displayed by a sphere) and the diameter is 5.

FIG. 5 shows an example of the system of the present invention, in which each unit of a model (here, a combine), the center of gravity of each unit, and the center of gravity of the model are displayed on a display screen. In the figure, G1 is a sphere indicating the center of gravity of a unit whose weight does not change, and G2 is a sphere indicating the center of gravity of a unit whose weight changes. GM is a sphere representing the center of gravity of the model. Here, it indicates that the GM gradually changes in accordance with the increase of the unit G2 which fluctuates.

FIG. 6 is a flowchart showing the general operation of the present system.

FIG. 6 shows a flowchart for calculating the position of the center of gravity of the model on the display screen and simultaneously displaying the position of the center of gravity and the unit shape.

When the operation starts, the position of the center of gravity and the weight are read from the mass property file 7 for each unit, and the position of the center of gravity of the model is calculated at n1. The following formula is a calculation formula for calculating the position of the center of gravity of the model.

[0018]

(Equation 1)

Next, display data such as the color and the radius of the barycentric sphere of each unit is read from the display file 8, and n2
, The shape of each unit and the position of the center of gravity of the model are displayed on a display screen. In the example shown in FIG. 5, the display of each unit and one of the centroid GMs are displayed.

FIG. 7 is a flowchart generally performed together with the operation of FIG. In this flow, after referring to the position and weight of the center of gravity of each unit from the mass property file 7, the ball of the center of gravity of each unit is displayed at n3, and the processing ends. Therefore, when FIG. 7 is completed,
As shown in FIG. 5, a sphere at the position of the center of gravity of each unit indicated by G1 or G2 is displayed.

FIG. 8 shows an operation corresponding to claim 1.

First, from the mass property file 7,
After referring to the position of the center of gravity and the weight of each unit, at n4, the data of the mass property file is listed and displayed on the entire display screen. That is, the table shown in FIG. 3 appears on the screen. In the display state of this table, an arbitrary cell in the table can be designated by an input device such as the keyboard 9 and the mouse 10, and the mass property data in the designated cell can be edited (n5). . When the editing of the mass property data is performed by this table operation, the changed contents are reflected in the mass property file 7 and the processing is terminated.

FIG. 9 shows an operation corresponding to claim 2.

First, after referring to the position of the center of gravity and the weight of each unit from the mass property file 7, at n6, a list is displayed in the same manner as at n4. However, in this case, the size of the window of the list can be made smaller than the screen (this size can be set to an arbitrary size using an input device such as a mouse). A model as shown in FIG. 5 is also displayed. Then, when the operation of the above table is performed at n7,
The contents of the operation are reflected in the mass property file, and unless an end command is input, the process returns to n6 again, and the list and the unit display are simultaneously performed. In other words, when returning to n6, the unit shape reflecting the mass property data changed in the previous n7 is displayed simultaneously with the list, so that the change by the table operation is simultaneously linked to the shape display. .

[0025]

According to the present invention, a mass property file for storing mass property data of each unit is provided, the data of the mass property file is displayed in a table, and each cell in the table can be directly edited by an input device. In addition, it is very easy to change the mass property data. In addition, the unit display and the table display are simultaneously performed by the multi-window, and when the table operation is performed, the units are changed in conjunction with each other, so that there is an advantage that the analysis and design of the target model are facilitated.

[Brief description of the drawings]

FIG. 1 shows a configuration diagram of a system of the present invention.

FIG. 2 shows a unit shape file.

FIG. 3 shows a mass property file.

FIG. 4 shows a display file.

FIG. 5 is a diagram showing a display example of each unit and a barycenter sphere;

6 to 9 are flowcharts showing the operation of the present invention.

[Explanation of symbols]

 6- Unit shape file 7- Mass property file 8- Display file

Claims (2)

(57) [Claims] 1. A unit shape file for dividing a shape of a work machine serving as a target model into a plurality of three-dimensional functional units and storing shape data of each unit; A mass property file for storing data, means for displaying the mass property file data in a table, and means for enabling editing of the mass property data by directly operating the table. Work machine weight analysis system using graphics. 2. A unit according to claim 1, wherein said means for simultaneously displaying the shape of each unit and said table on the same screen, and when the mass property data is changed by operating said table, said unit related to said change Means for simultaneously changing the display. A weight analysis system for a working machine using three-dimensional graphics, comprising: