JPH0728883A - Drawing design supporting system - Google Patents

Abstract

PURPOSE:To constitute the system so that whether an equipment on a prepared drawing is endurable actually as strength or not can be checked exactly and quickly. CONSTITUTION:In a data storage means 24a, attribute data of every specific position of the equipment is stored in accordance with the equipment displayed on a display screen 21. A calculating expression corresponding data extracting means 20c extracts data required for a calculation from in the attribute data of every specific position designated successively by a designating means such as a cursor, etc., on the display screen 21. A calculating means 20d executes successively a calculation, based on its extracted data and displays a result of calculation on the display screen 21. By looking at this display screen 21, whether the equipment is endurable actually as strength or not can be checked.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawing design support system used for displaying a design drawing of an underground facility such as a manhole on a display screen to design the layout of the underground facility.

[0002]

2. Description of the Related Art Conventionally, in the design of underground equipment, for example, in the case of underground distribution map creation work, when the equipment is placed in the ground according to the drawing created in addition to the drawing creation work, the equipment is There is work to verify the strength of equipment that can withstand earth pressure and the strength of equipment when pulling in cables. In the past, drawing creation and simulation calculation were either done manually or in separate systems. For example, in a general-purpose CAD system, a picture is created with the support of a computer, and in simulation calculation,
The simulation calculation was performed by manually inputting the equipment layout information / outer diameter / inner diameter / information into another system. The simulation calculation formula itself was performed by using a known cable drawing tension calculation method.

[0003]

The conventional method has a problem in that it takes time and effort to re-enter the created drawing data into another system and to verify that there is no input error. It was

The present invention has been made in order to solve the above-mentioned problems, and it is possible to accurately and quickly check whether the equipment on the created drawing can actually withstand strength. The purpose is to provide a design support system.

[0005]

According to the drawing design support system of the invention of claim 1, data storage means for storing the attribute data for each specific position of the equipment in association with the equipment displayed on the display screen 21. 24a, and a calculation formula corresponding data extracting means 20c for extracting data required for calculation from the attribute data sequentially designated by a designating means such as a cursor,
The calculation means-corresponding data extracting means 20c is provided with a calculating means 20d for sequentially executing the calculation and displaying the calculation result on the display screen 21.

A drawing design support system according to a second aspect of the present invention displays a list of calculation results for each specific position designated by a designating means such as a cursor, and identifies whether or not the calculation result exceeds an allowable value. The determination is made for each position, and the determination result can be displayed during the list display.

The drawing design support system according to the third aspect of the present invention is provided with a design table 24b for sequentially inputting data for each specific position designated by a designating means such as a cursor, and the arrangement order of the data in this design table 24b is set. In the opposite direction, the data input later is input to the head address side, the data is read from the head address of the design table 24b, and the calculation means 20d sequentially calculates.

[0008]

In the invention of claim 1, the data storage means 2
4a stores attribute data for each specific position of equipment,
The calculation formula corresponding data extracting means 20c extracts data necessary for calculation from the attribute data sequentially designated by the designating means such as a cursor, and the calculating means 20d successively calculates based on the output of the calculation formula corresponding data extracting means 20c. Execute and display the calculation result.

According to the second aspect of the present invention, the calculation results for each specific position designated by the designating means such as a cursor are displayed in a list, and it is determined for each specific position whether or not the calculation result exceeds an allowable value. This determination result is displayed during the list display.

According to the third aspect of the invention, the arrangement order of the data in the design table 24b for sequentially inputting the data for each specific position designated by the designating means such as the cursor is set to the opposite direction, and the data inputted later So that is input to the head address side. The calculating means 20d reads the data from the head address of the design table 24b and sequentially calculates the data.

[0011]

【Example】

Example 1 (corresponding to claim 1). FIG. 2 is a configuration block diagram of a computer system according to an embodiment of the present invention. In FIG. 2, 20 is a CPU for performing arithmetic processing, 21 is a display screen for displaying information, 22 is a mouse for inputting information, 23 is a keyboard for inputting and operating information, and 24 is arithmetic processing. A main memory for storing information necessary for the above, and a disk device 25 for storing processing results and the like. The computer system having such a configuration has a configuration of a general engineering workstation.

FIG. 1 is a configuration block diagram for explaining the function of the CPU 20 in FIG. 2, that is, the configuration of the drawing design support system of the first embodiment. In FIG. 1, C
The PU 20 comprises a display control means 20a, an equipment-corresponding data extracting means 20b, a calculation formula-corresponding data extracting means 20c and a calculating means 20d. The display control means 20a controls the display screen 21. The equipment-corresponding data extracting means 20b extracts, for example, attribute data for each specific position of the equipment designated by the keyboard 23. The calculation formula corresponding data extracting means 20c extracts, from the design table 24b, the data necessary for calculation from the attribute data for each specific position sequentially designated by the designating means such as the cursor on the display screen 21 of the display screen 21.
The design table 24b is the equipment-corresponding data extraction means 20.
The attribute data extracted in b is stored as a table in a predetermined format. The calculation means 20d sequentially executes the calculation based on the output of the calculation formula corresponding data extraction means 20c and displays the calculation result on the display screen 21. Further, the calculation means 20d has a plurality of calculation formulas, and performs calculation according to the calculation formula selected by the calculation formula selection data from the keyboard 23, for example. Calculation formula corresponding data extraction means 20c
From, the calculation formula corresponding data is given to the calculation means 20d,
The extraction instruction data is given from the calculation means 20d to the calculation formula corresponding data extraction means 20c. Calculation is performed by exchanging these data, and a process of displaying the calculation result is performed. The attribute data is input for each specific position of equipment. Reference numeral 24a in FIG. 1 denotes the main memory 24 in FIG.
The data storage means included in stores the attribute data for each specific position of the equipment in association with the equipment displayed on the display screen 21.

FIG. 3 is an example of a display screen of the drawing design support system according to the first embodiment. In the figure, 30 is a display screen and 3 is a display screen.
Reference numeral 1 is a drawing display area, and 32 is a window provided in a lower area of the display screen 30. In this first embodiment, a design drawing of underground equipment related to a manhole will be described. For simplification of the description, the pipe is designed only for a straight pipe without a bent portion. Therefore, in the window 32, the pipeline designation display section 2a, the manhole designation display section 2b, the cable designation display section 2c, the distribution tower designation display section 2d, the entry calculation designation display section 2e, and the return designation display section 2f are displayed. It is possible to input the designation data for either the pipeline or the manhole simply by disposing a cursor or the like as a designation means in any of the above and clicking.

Next, an outline of commands specified by the keyboard 23 will be described. Pipeline command: A command to input the attribute information necessary for simulation calculation after pointing the position of two points to lay a pipeline on the topographic map displayed in the drawing display area with the mouse. Manhole command: A command to input the attribute information required for simulation calculation after pointing the position of one point to lay a manhole on the topographic map displayed in the drawing display area with the mouse. Cable command ・ ・ ・ ・ Pipeline to pull in the cable /
A command that sequentially specifies the attributes of the cable after the man-machine is specified in order of the equipment that pulls in the manhole. Power distribution tower command: A command to specify the location of the power distribution tower to which the cable is connected on the topographic map displayed in the drawing display area. Pull-in calculation command: A command that calculates the pull-in tension of the cable specified by the cable command and displays the result. Return command: A command to return the result of pull-in tension to the topographic map display.

FIG. 4 is a screen automatically displayed when the attribute data is input by the above command, and the attribute data of each facility is input by this screen. In FIG. 4, the plane coordinate is an item that does not need to be intentionally input on the screen of FIG. 4 because it is automatically set when the position on the topographic map is designated by the above command. In this way, attribute data can be set for each equipment such as pipelines, manholes, cables, etc. For pipelines and manholes, attribute data can be input for each coordinate position (specific position).

Next, a concrete operation example will be described by taking a case where a drawing as shown in FIG. 5 is created by using the hardware and the command having the above-mentioned configuration and it is desired to simulate the pull-in tension calculation. Further, here, FIG. 6 shows the manhole M of FIG.
FIG. 1 is a vertical sectional view from 1 to manhole M2, showing that pipe lines L1 and L2 are descending from manhole M1 to manhole M2, and that it is difficult to descend from point B on the way. The figure shows a case in which the cable K passes through the manhole M1 and the maneuvering line L1 and the management L2 to simulate the maneuvering to the manhole M2. That is, the cable K is connected to the distribution tower N1 above the manhole M1 and the distribution tower N2 above the manhole M2. In this way, the layout of manholes and conduits can be displayed in a plan view or a side view. In this case, these figures can be displayed overlaid on the map.

Next, the operation of the design operation / simulation operation will be described with reference to the flowchart of FIG. In steps 71 and 72, a drawing is created and attributes are input from the keyboard 23 using the command of pipeline / manhole / distribution tower.
As a result, the data storage means 24a stores the graphic data and the attribute data necessary for the simulation for each equipment category, that is, for each specific position. Next, the display controller 20a creates the drawing of FIG. 5 or 6 on the display screen 21 using the graphic data. Each time this operation is performed, the data shown in FIG. 8 is stored in the data storage means 24a in FIG.
Sequentially store in. In FIG. 8, the equipment classification data 1a is discriminated based on the type of the selected command of pipeline / manhole / distribution tower and converted into data, and the graphic data 1b is converted into data corresponding to the coordinate position by the drawn planar figure. As the attribute data 1c, the data input from the attribute input screen as shown in FIG. 4 is directly converted into data.

In steps 73 and 74 in FIG.
Run the cable command inside. This is for designating the equipment through which the cable should pass, and the equipment-corresponding data extracting means 20b based on the designation data from the keyboard 23.
The attribute data of the equipment passing through the designated cable is extracted from the data storage means 24a. In this example, since the cable K is drawn through the pipeline L1 and then the pipeline L2 in FIG. 5, the pipeline L1 is designated first, and then the pipeline L2 is designated. Then, the pipelines L1, L2
Attribute data for is extracted. In step 75, the operator selects the withdrawal calculation command, and the calculation means 20d
To execute pull-in tension calculation. That is, keyboard 2
When the calculation formula selection data indicating which calculation is to be performed from 3 is input to the calculation unit 20d, the calculation formula corresponding data required for the calculation is extracted by the calculation formula corresponding data extraction unit 20c based on the extraction instruction data of the calculation unit 20d. To be done. Step 7
In the calculation in 5, a predetermined calculation formula is extracted depending on whether the cable passes through the horizontal portion, the downward inclined portion, or the upward inclined portion.
In step 76, the drawing tension calculation result is displayed. This display content is the content of the design table 24b shown in FIG. 10 described later. In this way, it is possible to input picture data of equipment such as manholes and display it as picture data, and it is also possible to input attribute data corresponding to the displayed equipment, and this input is for each specific position in each equipment. You can do it.

Next, a method of calculating the pull-in tension by the calculating means 20d will be described with reference to the flowchart of FIG. In step 91, the equipment through which the cable K passes, that is, the pipeline L
1, with respect to the conduit L2, the entrance (entrance) of the cable K and the exit (exit) of the cable K are adjacent to each other.
Judgment is based on both end coordinates of. Based on this determination result, the attribute data of the pipelines L1 and L2 is set in the design table 24b according to the pattern shown in the design table 24b of FIG. Cable length / pull-in tension is not set at this stage. In step 92, the drawing tension of the outlet is sequentially calculated by the specified calculation formula (according to the calculation formula selection data) according to the embedding depth of both ends in the specified equipment unit. At this time, the cable length passing through the passage facility in advance is calculated. Is calculated as the pipe length between the inlet / outlet in FIG. 10, and is set in the cable length column in FIG. 10, and then the tension is calculated. The calculation formula is determined and used by the processing method in FIG. The calculation formula is shown below.

In case of horizontal straight line portion: T = μWL Straight line inclined portion (upward): T = WL (μCOSθ + SIN
θ) Straight slope (downward): T = WL (μCOSθ-SIN
θ) T: Pull-in tension μ: Coefficient of friction W: Unit weight of cable L: Cable length θ: Inclination angle of conduit

In the above calculation formula, W is obtained from the cable attribute, μ is fixed, and θ is calculated from the coordinates of both ends of the pipeline and the burial depth. In this way, the attribute data corresponding to each specific position of the equipment designated by the equipment corresponding data extracting means 20b is set in the design table 24b, and the specific position is sequentially designated by the designating means such as the cursor. The data is sequentially stored from the top address of the design table 24b in this designated order, and the data required for the calculation is extracted from the top address of the design table 24b by the calculation formula corresponding data extraction means 20c and calculated for each of the specific positions, and the calculation is performed. The result is displayed on the display screen 21 via the display control means 20a. This calculation is performed by a method of accumulating the previous value and the current value.

Embodiment 2 (corresponding to claim 2). In the first embodiment, the content shown in FIG. 10 is simply displayed on the screen as the pull-in calculation result, but in the second embodiment, the allowable pull-in tension can be determined by the following formula.

Allowable tensile strength of cable = a × number of cable cores × cross section of cable conductor In case of aluminum; a = 4 / square millimeter In case of copper; a = 7 / square millimeter

In the second embodiment, as shown in FIG. 11, a tension calculation formula storage means 24c for storing the above allowable tension calculation formula.
Then, the allowable tension calculation is performed based on the cable attribute data. In addition, as shown in FIG.
The safety judgment means 20e is provided in 0d, and the judgment result as to whether or not it is safe under the allowable tension at the outlet of each equipment is displayed on the display screen 21. FIG. 12 shows the screen configuration.

According to the second embodiment, the tension calculation formula storage means 2 is based on the calculation formula selection data from the keyboard 23.
When the allowable tension calculation formula is fetched from 4c, the calculation means 20
d takes in the data necessary for this calculation from the calculation formula corresponding data extracting means 20c and executes the calculation, and the safety judging means 20c judges the result, and the judgment result is YES in the frame 10m of the pattern of FIG. It is displayed in the form of NO.

Embodiment 3 (corresponding to claim 3). In the first embodiment, only the pull-in tension in the-direction is calculated. However, as shown in FIG. 12, a command “reverse pull-in” for displaying the calculation result at the time of reverse pull-in is provided, and as shown in FIG. The reverse pull-in setting data is input from the keyboard 23 to the reverse pull-in processing means 20f, and the reverse pull-in processing means 20f is caused to perform the processing of step 141 in FIG. In this step 141, the "reverse pull-in" command is generated once by the reverse pull-in processing means 20f, as shown in FIG.
The design table 24b is rearranged so that the data inputted later comes to the head address, and
The contents of the drawer and the column are exchanged, and the process of step 142 (the same as the process of step 92 of FIG. 9) is executed. That is, the tension applied to the cable K during the drawing process is
The case of pulling in along the upward direction is larger than the case of pulling in along the downward direction of the inclination of 1 and L2. In the first embodiment, the tension of the cable K can be obtained by designating the data in the order of the pipeline L1 to the pipeline L2 by the designation means such as a cursor.

However, according to the third embodiment, the data arrangement in the design table 24b is reversed so that the data inputted later comes to the head address. Thus, when the calculation means 20d sequentially calculates from the head address, it is calculated from the data input later. This means that the calculation can be executed when the pull-in direction is set from the line L2 to the line L1. As a result, it is possible to save the trouble of designating from the conduit L2 to the conduit L1 with a specifying means such as a cursor.

Embodiment 4 (corresponding to claims 1, 2 and 3). In addition, in the above-mentioned Examples 1 to 3, the pipeline is intended only for the pipeline extending in a straight line. However, as shown in FIG. 15 as Example 4, the following information is further converted into data as attribute data,
Such data, that is, pipe bend radius data, center coordinate data for the bend radius, buried depth data of the center coordinates corresponding to the bend radius, and inclination angle data when the bend radius is inclined are shown in the keyboard shown in FIG. By making the auxiliary data storage means 24c in the data storage means 24a capable of receiving the data via 23, these data are also stored in the auxiliary data storage means for the horizontal bending portion, the vertical bending portion, and the vertical bending portion of the curved portion within the inclination. The pull-in tension can be calculated by reading from 24c. At this time, the following attribute input items are similarly added to the items on the attribute input screen of the pipeline which were intended only for the straight pipeline in FIG.
In the pull-in calculation method (step 92) in the middle, the construction type is determined and a calculation formula corresponding thereto is added.・ Type of installation ・ ・ ・ ・ Types below. Horizontal straight portion / straight inclined portion / vertical bending portion (convex curve) / vertical bending portion (concave curve)
/ Vertical bending part (convex part) of the curved part within the slope / Vertical bending part (concave part) of the bending part within the slope-Bend radius-Plane coordinates and burial depth of the bend center point corresponding to the bend radius・ Inclination angle when pipe bends are inclined

Embodiment 5 (corresponding to claims 1, 2 and 3). In Examples 1 to 4, only the pulling-in tension of the cable is calculated by simulation, but when the cable is bent and installed along the pipeline, the lateral pressure is generated. This side pressure P
Can be calculated by the following formula from the drawing tension T of the drawing port of the bending pipeline and the bending radius R of the pipeline when the drawing tension of the bending pipeline is calculated. (While the lateral pressure itself is generated in the entire bent portion, the point at which the drawing tension becomes maximum at the bent portion is the outlet, so the lateral pressure of the bent portion is checked by the following formula.)

P = T / R

Therefore, in the fifth embodiment, as shown in FIG. 17, the lateral pressure calculation formula storage means 24 for storing the lateral pressure calculation formula.
g is provided, the calculation means 20d reads out this calculation formula, and the equipment data required for this calculation is extracted from the calculation formula corresponding data extraction means 20c to execute this calculation.
In this case, the data storage means 24a of the main memory 24 is converted into data and the cable attribute screen is configured so that the following cable types can be additionally input in the cable attributes, and the pass / fail judgment means 20g is provided in the calculation means 20d. With this, the maximum allowable lateral pressure is automatically determined for each cable type. FIG. 18 shows a screen configuration example in which the side pressure, the allowable side pressure, and the acceptance / rejection determination with respect to the allowable side pressure of the bending pipe line portion as described above are performed and displayed.

· Vinyl sheath cable (300 kg /
m) ・ Chloroprene sheath cable (300 kg / m) ・ Triplex CV cable (250 kg / m) Although the allowable side pressure value for the above cable types has a width, for example, in order to design on the safety side, The pass / fail judgment is performed using the numerical value as the allowable side pressure value.

[0033]

As described above, according to the invention of claim 1,
Since the data necessary for calculation is extracted from the attribute data for each specific position of the equipment, the calculation is executed sequentially based on the extracted data and the calculation result is displayed on the display screen. It is possible to accurately and quickly check whether the above equipment can actually withstand the strength.

According to the invention of claim 2, a list of calculation results for each specific position designated by the designating means is displayed, and it is determined for each specific position whether or not the calculation result exceeds an allowable value.
Since this judgment result can be displayed in the list display, you can see at a glance whether each facility can be used safely,
The same effect as above can be obtained.

According to the third aspect of the present invention, the arrangement order of the data of the design table is set to the opposite direction, and the data inputted later is read to the head address side so that the data is read from the head address of the design table. Since the calculation is sequentially performed, it is possible to immediately determine whether or not the cable is pulled in the opposite direction, and it is possible to greatly improve the efficiency of work in drawing creation and verification.

[Brief description of drawings]

FIG. 1 is a configuration block diagram of a drawing design support system according to a first embodiment of the present invention.

FIG. 2 is a configuration block diagram of a computer system according to an embodiment of the present invention.

FIG. 3 is a diagram showing an example of a display screen in the first embodiment.

FIG. 4 is an explanatory diagram of an attribute data input screen according to the first embodiment.

FIG. 5 is a diagram showing an example of an underground power distribution design diagram in the first embodiment.

FIG. 6 is a diagram showing an example of a vertical cross-sectional view of underground power distribution according to the first embodiment.

FIG. 7 is a flowchart of a design operation / simulation operation in the first embodiment.

FIG. 8 is an explanatory diagram of a format of drawing data according to the first embodiment.

FIG. 9 is a flowchart of a pull-in calculation in the first embodiment.

FIG. 10 is a diagram showing the contents of a design table in the first embodiment.

FIG. 11 is a configuration block diagram of a drawing design support system according to a second embodiment of the present invention.

FIG. 12 is a diagram showing a calculation result display screen with an allowable withdrawal determination column in the second embodiment.

FIG. 13 is a configuration block diagram of a drawing design support system according to a third embodiment of the present invention.

FIG. 14 is a flowchart of a reverse pull-in calculation method according to the third embodiment.

FIG. 15 is a format explanatory diagram of drawing data that enables calculation of the drawing tension of the bending pipe in the third embodiment.

FIG. 16 is a configuration block diagram of a drawing design support system according to a fourth embodiment of the present invention.

FIG. 17 is a configuration block diagram of a drawing design support system according to a fifth embodiment of the present invention.

FIG. 18 is a diagram showing an example of a screen configuration according to the fifth embodiment.

[Explanation of symbols]

 20c Calculation formula corresponding data extraction means 20d Calculation means 21 Display screen 20e Safety determination means 24b Design table 20f Reverse pull-in processing means

Claims (3)

[Claims] 1. In a computer system capable of displaying a design drawing of underground equipment such as a manhole on a display screen, attribute data for each specific position of the equipment corresponding to the equipment displayed on the display screen. A data storage means for storing, and a calculation formula-corresponding data extraction means for extracting data required for calculation from the attribute data for each of the specific positions sequentially specified by a specifying means such as a cursor on the display screen,
A drawing design support system comprising: a calculation unit that sequentially executes a calculation based on the output of the calculation formula corresponding data extraction unit and displays the calculation result on the display screen. 2. In a computer system capable of displaying a design drawing of underground equipment such as a manhole on a display screen, attribute data for each specific position of the equipment corresponding to the equipment displayed on the display screen. A data storage means for storing, and a calculation formula-corresponding data extraction means for extracting data required for calculation from the attribute data for each of the specific positions sequentially specified by a specifying means such as a cursor on the display screen,
A specific position on the display screen designated by the designating means such as the cursor or the like, which comprises a calculating means for sequentially executing the calculation based on the output of the calculation formula corresponding data extracting means and displaying the calculation result on the display screen. List the calculation results for each
A drawing design support system characterized in that whether or not the calculation result exceeds an allowable value is determined for each of the specific positions, and the determination result can be displayed in the list display. 3. In a computer system capable of displaying a design drawing of underground equipment such as a manhole on a display screen, attribute data for each specific position of the equipment corresponding to the equipment displayed on the display screen. A data storage means for storing, and a calculation formula-corresponding data extraction means for extracting data required for calculation from the attribute data for each of the specific positions sequentially specified by a specifying means such as a cursor on the display screen,
A calculation means for sequentially executing calculation based on the output of the calculation formula corresponding data extraction means and displaying the calculation result on the display screen is provided, and the data is sequentially calculated for each specific position designated by the designating means such as the cursor. A design table to be input is provided, and the arrangement order of the data in this design table is set in the opposite direction, so that the data input later is input to the head address side, data is read from the head address of the design table, and the above calculation is performed. A drawing design support system characterized in that the means sequentially calculates.