JP2719250B2 - Work Machine Weight Analysis System Using 3D Graphics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates, using the three-dimensional any graphical processing system, performs a weight analysis of the work machine, relates to a system for supporting the design.

[0002]

BACKGROUND ART working machine with a weight change, as a support system for particular design agricultural vehicles, such as combines, conventionally, CAD system or the like, any graphical processing system capable of being 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, i.e., when one element block is slightly moved on the display screen or when the weight is changed, the position of the center of gravity of the entire machine is changed with respect to the element block, and the degree of interference with other element blocks; Comprehensive analysis to examine changes in design was almost impossible.

[0004] System This object of the invention is to perform the weight analysis of the work machine by using the high-speed computer capable of performing a three-dimensional graph I box process, thereby capable of supporting the design of the work machine Is to provide.

[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, a means for obtaining a center of gravity of the model based on the center of gravity position data of each unit, and a change in the center of gravity due to a change in weight, such as a change in the amount of paddy. Means for plotting and displaying various model design quantities such as left and right lengths and front and rear lengths in two-dimensional coordinates set on the X and Y axes, and the shape, the center of gravity of each unit, and the model of the model on the display screen. Means for displaying the position of the center of gravity, means for selecting a unit and inputting the destination of the center of gravity of the unit, and inputting the destination of the center of gravity of the selected unit Was followed, characterized by comprising a means for the cover to recalculate the gravity center position said unit shape display screen and the two-dimensional coordinate display screen of the model.

In addition, means for designating an arbitrary point in the center-of-gravity position change curve displayed on the two-dimensional coordinates, a moving amount thereof, and each unit when the center of gravity of the designated point moves by the moving amount Means for determining the moving direction of the unit and displaying the moving direction on the unit shape screen.

[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.

[0009] The mass property file stores the center-of-gravity position data and the weight data of each unit as mass property data.

In the system of the present invention having the above file structure, in claim 1, the center of gravity of the entire model is obtained based on the center of gravity data of each unit with reference to the mass property file. At the top, the center of gravity of the model is displayed along with the shape of each unit. In addition, the center of gravity of each unit is displayed. Further, a graph of two-dimensional coordinates in which various model design quantities such as the left and right length and the front and rear length of the model are set on the X and Y axes is displayed, and the center of gravity of the model is displayed on this graph. Here, the position of the center of gravity of the model changes according to the increase or decrease of the weight variation unit. That is, each unit is divided into a unit having no weight fluctuation and a unit having a weight fluctuation (for example, a unit for storing paddy). For these variable units, a model center of gravity corresponding to the increase or decrease of the variable units is displayed on a display screen. A position change curve appears. When an arbitrary unit is selected and the destination of the center of gravity of the unit is input in a state where the graph of the two-dimensional coordinates, the model center of gravity position, and the center of gravity position of each unit are displayed on which the barycenter position change curve is displayed. Since the position of the center of gravity of the model also changes, the center of gravity of the model is recalculated after the destination of the center of gravity movement for the unit is input. The center of gravity of the model determined as a result of the recalculation is redisplayed on the unit shape display screen, and is also redisplayed on the two-dimensional coordinate display screen.

According to a second aspect of the present invention, when an arbitrary point and its moving amount are designated on the barycentric position change curve displayed on the two-dimensional coordinates, each unit is moved in any direction and by how much. Test each unit to see if that condition is met.

[0012] Then, after finishing the operation, the moving direction of each unit is displayed on the unit shape screen.

[0013]

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 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 system of the present invention. 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 a schematic operation of the present system.

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

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.

[0019]

(Equation 1)

Next, from the display file 8, display data such as the color and the radius of the barycentric sphere of each unit is read out,
At n2, the shape of each unit and the position of the center of gravity of the model are displayed on the 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 of the center of gravity and the weight of each unit from the mass property file 7, the position of the center of gravity of each unit is displayed at n3, and the process 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 a flow of displaying a two-dimensional coordinate graph on a display screen.

The position of the center of gravity and the weight of each unit are read out from the mass property file 7, and from the display file 8, various design amounts of the model (here, the shift amounts of the crawler position, the ground contact length, and the distance between the tracks with respect to the reference point of the combine are shown). Read out, these are model design quantities), and two of these quantities are made to correspond to the X axis and the Y axis.

At n4, the position of the center of gravity of the model is calculated. At n5, a graph window for two-dimensional coordinates is set. At n6, the value of the center of gravity obtained at n4 is converted into a graph coordinate position and displayed at n7 as a graph. I do. FIG. 9 shows a graph display example when the horizontal axis is set to the left-right balance (distance between ruts) and the Y-axis is set to the front-back balance. In this figure, X
Both the axis and the Y axis are displayed as percentages as distances from the reference position. The solid line in the figure is the center-of-gravity position change curve of the model.

FIG. 10 is a flowchart showing an operation corresponding to claim 1.

After reading the position of the center of gravity and the weight of each unit from the mass property file, the process waits for the operator to select an arbitrary unit at n10. Further, input of the destination of the center of gravity of the unit is waited (n11). Here, the destination represents a three-dimensional vector quantity. After this, n1
In step 2, the changed center of gravity position is determined and registered in the mass property file 7, and the operations in FIGS. 6, 7, and 8 are executed in n13. That is, the unit shape display screen is formed as a result of the operations in FIGS. 6 and 7, but the changed center of gravity position is displayed again on this unit shape display screen, and the result screen of the operation in FIG. A display screen is formed with the two-dimensional coordinates, and the changed barycentric position is displayed again on the graph of the two-dimensional coordinates.

FIG. 11 shows an example displayed as a result of the above operation.

FIG. 12 is a flow chart showing the operation corresponding to claim 2.

Here, first, the position of the center of gravity of each unit,
After the weight is read, the operator waits for the input of the unit (center of gravity number) and the amount of movement by the operator, and simulates the movement of each unit so as to satisfy the condition. Note that performing a simulation of moving each unit in all three-dimensional directions requires a huge amount of calculation, so that a movement in a predetermined specific direction is simulated. After this operation is completed, the moving direction of each unit is indicated by an arrow on the unit shape display screen at n17, and the processing is ended.

[0030]

According to the present invention, a mass property file for storing the mass property data of each unit is provided, the center of gravity of the model is determined based on the data of the mass property file, the model is displayed together with the unit, and a two-dimensional graph is further displayed. When the change curve of the center of gravity of the model is displayed on the graph and an arbitrary unit and the amount of movement of the center of gravity are input, the center of gravity of the model at that time is recalculated and the unit shape display screen and two-dimensional coordinate display Since the images are simultaneously displayed on the screen, a change in the center of gravity of the model when each unit is moved can be intuitively recognized, and this is a very useful support system for performing weight balance planning. Similarly, since the movement direction of each unit when the position of the center of gravity of the model is moved can be simulated, this is a useful support system for performing a balance plan.

[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;

FIG. 6

FIG.

FIG.

FIG. 12 is a flowchart showing the operation of the present invention.

FIG. 9 is a diagram showing a display example of a two-dimensional coordinate graph.

FIG. 11 is an example showing a unit shape display screen and a two-dimensional coordinate display screen.

[Explanation of symbols]

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

Claims (2)

(57) [Claims] 1. A unit shape file which divides a shape of a work machine serving as a target model into a plurality of three-dimensional functional units and stores shape data of each unit, a mass probe of center-of-gravity position data and weight data of each unit. A mass property file for storing the tee data, a means for obtaining the center of gravity of the model based on the data of the center of gravity of each unit, and a change in the center of gravity due to a weight change such as a change in paddy amount. Means for plotting and displaying various model design quantities in two-dimensional coordinates set on the X and Y axes; means for displaying the shape, the center of gravity of each unit, and the center of gravity of the model on the display screen; Means for selecting a unit and inputting the destination of the center of gravity of the unit; and, after inputting the destination of the center of gravity of the selected unit, the center of gravity of the model It said unit shape display screen and the means for displaying the two-dimensional coordinate display screen, comprising comprises a three-dimensional working machine <br/>械weight analysis system of graphics using recalculate location. 2. 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, and mass properties of center-of-gravity position data and weight data of each unit. A mass property file for storing data; a means for determining the center of gravity of the model based on the center of gravity data of each unit; a change in the center of gravity due to a change in weight such as a change in paddy amount; Means for plotting and displaying various model design quantities in two-dimensional coordinates set on the X and Y axes; means for displaying the shape, the center of gravity of each unit, and the center of gravity of the model on the display screen; An arbitrary point in the center-of-gravity position change curve displayed in the two-dimensional coordinates, a unit for specifying an amount of movement, and a center of gravity of the specified point Obtains the moving direction of the unit when moved by the serial shift amount, and means for displaying the moving direction to the unit shape screen will comprise a three-dimensional working machine graphics using <br/>械Weight analysis system.